ref: 33f5d0fe3fd40b57f0a36e3832637446446768f4
dir: /syntax.c/
/* vi:set ts=8 sts=4 sw=4:
*
* VIM - Vi IMproved by Bram Moolenaar
*
* Do ":help uganda" in Vim to read copying and usage conditions.
* Do ":help credits" in Vim to see a list of people who contributed.
* See README.txt for an overview of the Vim source code.
*/
/*
* syntax.c: code for syntax highlighting
*/
#include "vim.h"
/*
* Structure that stores information about a highlight group.
* The ID of a highlight group is also called group ID. It is the index in
* the highlight_ga array PLUS ONE.
*/
struct hl_group
{
char_u *sg_name; /* highlight group name */
char_u *sg_name_u; /* uppercase of sg_name */
/* for normal terminals */
int sg_term; /* "term=" highlighting attributes */
char_u *sg_start; /* terminal string for start highl */
char_u *sg_stop; /* terminal string for stop highl */
int sg_term_attr; /* Screen attr for term mode */
/* for color terminals */
int sg_cterm; /* "cterm=" highlighting attr */
int sg_cterm_bold; /* bold attr was set for light color */
int sg_cterm_fg; /* terminal fg color number + 1 */
int sg_cterm_bg; /* terminal bg color number + 1 */
int sg_cterm_attr; /* Screen attr for color term mode */
#ifdef FEAT_GUI
/* for when using the GUI */
int sg_gui; /* "gui=" highlighting attributes */
guicolor_T sg_gui_fg; /* GUI foreground color handle */
char_u *sg_gui_fg_name;/* GUI foreground color name */
guicolor_T sg_gui_bg; /* GUI background color handle */
char_u *sg_gui_bg_name;/* GUI background color name */
guicolor_T sg_gui_sp; /* GUI special color handle */
char_u *sg_gui_sp_name;/* GUI special color name */
GuiFont sg_font; /* GUI font handle */
#ifdef FEAT_XFONTSET
GuiFontset sg_fontset; /* GUI fontset handle */
#endif
char_u *sg_font_name; /* GUI font or fontset name */
int sg_gui_attr; /* Screen attr for GUI mode */
#endif
int sg_link; /* link to this highlight group ID */
int sg_set; /* combination of SG_* flags */
#ifdef FEAT_EVAL
scid_T sg_scriptID; /* script in which the group was last set */
#endif
};
#define SG_TERM 1 /* term has been set */
#define SG_CTERM 2 /* cterm has been set */
#define SG_GUI 4 /* gui has been set */
#define SG_LINK 8 /* link has been set */
static garray_T highlight_ga; /* highlight groups for 'highlight' option */
#define HL_TABLE() ((struct hl_group *)((highlight_ga.ga_data)))
#ifdef FEAT_CMDL_COMPL
static int include_default = FALSE; /* include "default" for expansion */
static int include_link = FALSE; /* include "link" for expansion */
#endif
/*
* The "term", "cterm" and "gui" arguments can be any combination of the
* following names, separated by commas (but no spaces!).
*/
static char *(hl_name_table[]) =
{"bold", "standout", "underline", "undercurl",
"italic", "reverse", "inverse", "NONE"};
static int hl_attr_table[] =
{HL_BOLD, HL_STANDOUT, HL_UNDERLINE, HL_UNDERCURL, HL_ITALIC, HL_INVERSE, HL_INVERSE, 0};
static int get_attr_entry __ARGS((garray_T *table, attrentry_T *aep));
static void syn_unadd_group __ARGS((void));
static void set_hl_attr __ARGS((int idx));
static void highlight_list_one __ARGS((int id));
static int highlight_list_arg __ARGS((int id, int didh, int type, int iarg, char_u *sarg, char *name));
static int syn_add_group __ARGS((char_u *name));
static int syn_list_header __ARGS((int did_header, int outlen, int id));
static int hl_has_settings __ARGS((int idx, int check_link));
static void highlight_clear __ARGS((int idx));
#ifdef FEAT_GUI
static void gui_do_one_color __ARGS((int idx, int do_menu, int do_tooltip));
static int set_group_colors __ARGS((char_u *name, guicolor_T *fgp, guicolor_T *bgp, int do_menu, int use_norm, int do_tooltip));
static guicolor_T color_name2handle __ARGS((char_u *name));
static GuiFont font_name2handle __ARGS((char_u *name));
# ifdef FEAT_XFONTSET
static GuiFontset fontset_name2handle __ARGS((char_u *name, int fixed_width));
# endif
static void hl_do_font __ARGS((int idx, char_u *arg, int do_normal, int do_menu, int do_tooltip));
#endif
/*
* An attribute number is the index in attr_table plus ATTR_OFF.
*/
#define ATTR_OFF (HL_ALL + 1)
#if defined(FEAT_SYN_HL) || defined(PROTO)
#define SYN_NAMELEN 50 /* maximum length of a syntax name */
/* different types of offsets that are possible */
#define SPO_MS_OFF 0 /* match start offset */
#define SPO_ME_OFF 1 /* match end offset */
#define SPO_HS_OFF 2 /* highl. start offset */
#define SPO_HE_OFF 3 /* highl. end offset */
#define SPO_RS_OFF 4 /* region start offset */
#define SPO_RE_OFF 5 /* region end offset */
#define SPO_LC_OFF 6 /* leading context offset */
#define SPO_COUNT 7
static char *(spo_name_tab[SPO_COUNT]) =
{"ms=", "me=", "hs=", "he=", "rs=", "re=", "lc="};
/*
* The patterns that are being searched for are stored in a syn_pattern.
* A match item consists of one pattern.
* A start/end item consists of n start patterns and m end patterns.
* A start/skip/end item consists of n start patterns, one skip pattern and m
* end patterns.
* For the latter two, the patterns are always consecutive: start-skip-end.
*
* A character offset can be given for the matched text (_m_start and _m_end)
* and for the actually highlighted text (_h_start and _h_end).
*/
typedef struct syn_pattern
{
char sp_type; /* see SPTYPE_ defines below */
char sp_syncing; /* this item used for syncing */
short sp_flags; /* see HL_ defines below */
struct sp_syn sp_syn; /* struct passed to in_id_list() */
short sp_syn_match_id; /* highlight group ID of pattern */
char_u *sp_pattern; /* regexp to match, pattern */
regprog_T *sp_prog; /* regexp to match, program */
int sp_ic; /* ignore-case flag for sp_prog */
short sp_off_flags; /* see below */
int sp_offsets[SPO_COUNT]; /* offsets */
short *sp_cont_list; /* cont. group IDs, if non-zero */
short *sp_next_list; /* next group IDs, if non-zero */
int sp_sync_idx; /* sync item index (syncing only) */
int sp_line_id; /* ID of last line where tried */
int sp_startcol; /* next match in sp_line_id line */
} synpat_T;
/* The sp_off_flags are computed like this:
* offset from the start of the matched text: (1 << SPO_XX_OFF)
* offset from the end of the matched text: (1 << (SPO_XX_OFF + SPO_COUNT))
* When both are present, only one is used.
*/
#define SPTYPE_MATCH 1 /* match keyword with this group ID */
#define SPTYPE_START 2 /* match a regexp, start of item */
#define SPTYPE_END 3 /* match a regexp, end of item */
#define SPTYPE_SKIP 4 /* match a regexp, skip within item */
#define HL_CONTAINED 0x01 /* not used on toplevel */
#define HL_TRANSP 0x02 /* has no highlighting */
#define HL_ONELINE 0x04 /* match within one line only */
#define HL_HAS_EOL 0x08 /* end pattern that matches with $ */
#define HL_SYNC_HERE 0x10 /* sync point after this item (syncing only) */
#define HL_SYNC_THERE 0x20 /* sync point at current line (syncing only) */
#define HL_MATCH 0x40 /* use match ID instead of item ID */
#define HL_SKIPNL 0x80 /* nextgroup can skip newlines */
#define HL_SKIPWHITE 0x100 /* nextgroup can skip white space */
#define HL_SKIPEMPTY 0x200 /* nextgroup can skip empty lines */
#define HL_KEEPEND 0x400 /* end match always kept */
#define HL_EXCLUDENL 0x800 /* exclude NL from match */
#define HL_DISPLAY 0x1000 /* only used for displaying, not syncing */
#define HL_FOLD 0x2000 /* define fold */
#define HL_EXTEND 0x4000 /* ignore a keepend */
/* These don't fit in a short, thus can't be used for syntax items, only for
* si_flags and bs_flags. */
#define HL_MATCHCONT 0x8000 /* match continued from previous line */
#define HL_TRANS_CONT 0x10000L /* transparent item without contains arg */
#define SYN_ITEMS(buf) ((synpat_T *)((buf)->b_syn_patterns.ga_data))
#define NONE_IDX -2 /* value of sp_sync_idx for "NONE" */
/*
* Flags for b_syn_sync_flags:
*/
#define SF_CCOMMENT 0x01 /* sync on a C-style comment */
#define SF_MATCH 0x02 /* sync by matching a pattern */
#define SYN_STATE_P(ssp) ((bufstate_T *)((ssp)->ga_data))
#define MAXKEYWLEN 80 /* maximum length of a keyword */
/*
* The attributes of the syntax item that has been recognized.
*/
static int current_attr = 0; /* attr of current syntax word */
#ifdef FEAT_EVAL
static int current_id = 0; /* ID of current char for syn_get_id() */
static int current_trans_id = 0; /* idem, transparancy removed */
#endif
typedef struct syn_cluster_S
{
char_u *scl_name; /* syntax cluster name */
char_u *scl_name_u; /* uppercase of scl_name */
short *scl_list; /* IDs in this syntax cluster */
} syn_cluster_T;
/*
* Methods of combining two clusters
*/
#define CLUSTER_REPLACE 1 /* replace first list with second */
#define CLUSTER_ADD 2 /* add second list to first */
#define CLUSTER_SUBTRACT 3 /* subtract second list from first */
#define SYN_CLSTR(buf) ((syn_cluster_T *)((buf)->b_syn_clusters.ga_data))
/*
* Syntax group IDs have different types:
* 0 - 9999 normal syntax groups
* 10000 - 14999 ALLBUT indicator (current_syn_inc_tag added)
* 15000 - 19999 TOP indicator (current_syn_inc_tag added)
* 20000 - 24999 CONTAINED indicator (current_syn_inc_tag added)
* >= 25000 cluster IDs (subtract SYNID_CLUSTER for the cluster ID)
*/
#define SYNID_ALLBUT 10000 /* syntax group ID for contains=ALLBUT */
#define SYNID_TOP 15000 /* syntax group ID for contains=TOP */
#define SYNID_CONTAINED 20000 /* syntax group ID for contains=CONTAINED */
#define SYNID_CLUSTER 25000 /* first syntax group ID for clusters */
/*
* Annoying Hack(TM): ":syn include" needs this pointer to pass to
* expand_filename(). Most of the other syntax commands don't need it, so
* instead of passing it to them, we stow it here.
*/
static char_u **syn_cmdlinep;
/*
* Another Annoying Hack(TM): To prevent rules from other ":syn include"'d
* files from from leaking into ALLBUT lists, we assign a unique ID to the
* rules in each ":syn include"'d file.
*/
static int current_syn_inc_tag = 0;
static int running_syn_inc_tag = 0;
/*
* In a hashtable item "hi_key" points to "keyword" in a keyentry.
* This avoids adding a pointer to the hashtable item.
* KE2HIKEY() converts a var pointer to a hashitem key pointer.
* HIKEY2KE() converts a hashitem key pointer to a var pointer.
* HI2KE() converts a hashitem pointer to a var pointer.
*/
static keyentry_T dumkey;
#define KE2HIKEY(kp) ((kp)->keyword)
#define HIKEY2KE(p) ((keyentry_T *)((p) - (dumkey.keyword - (char_u *)&dumkey)))
#define HI2KE(hi) HIKEY2KE((hi)->hi_key)
/*
* To reduce the time spent in keepend(), remember at which level in the state
* stack the first item with "keepend" is present. When "-1", there is no
* "keepend" on the stack.
*/
static int keepend_level = -1;
/*
* For the current state we need to remember more than just the idx.
* When si_m_endpos.lnum is 0, the items other than si_idx are unknown.
* (The end positions have the column number of the next char)
*/
typedef struct state_item
{
int si_idx; /* index of syntax pattern */
int si_id; /* highlight group ID for keywords */
int si_trans_id; /* idem, transparancy removed */
int si_m_lnum; /* lnum of the match */
int si_m_startcol; /* starting column of the match */
lpos_T si_m_endpos; /* just after end posn of the match */
lpos_T si_h_startpos; /* start position of the highlighting */
lpos_T si_h_endpos; /* end position of the highlighting */
lpos_T si_eoe_pos; /* end position of end pattern */
int si_end_idx; /* group ID for end pattern or zero */
int si_ends; /* if match ends before si_m_endpos */
int si_attr; /* attributes in this state */
long si_flags; /* HL_HAS_EOL flag in this state, and
* HL_SKIP* for si_next_list */
short *si_cont_list; /* list of contained groups */
short *si_next_list; /* nextgroup IDs after this item ends */
reg_extmatch_T *si_extmatch; /* \z(...\) matches from start
* pattern */
} stateitem_T;
#define KEYWORD_IDX -1 /* value of si_idx for keywords */
#define ID_LIST_ALL (short *)-1 /* valid of si_cont_list for containing all
but contained groups */
/*
* Struct to reduce the number of arguments to get_syn_options(), it's used
* very often.
*/
typedef struct
{
int flags; /* flags for contained and transparent */
int keyword; /* TRUE for ":syn keyword" */
int *sync_idx; /* syntax item for "grouphere" argument, NULL
if not allowed */
char has_cont_list; /* TRUE if "cont_list" can be used */
short *cont_list; /* group IDs for "contains" argument */
short *cont_in_list; /* group IDs for "containedin" argument */
short *next_list; /* group IDs for "nextgroup" argument */
} syn_opt_arg_T;
/*
* The next possible match in the current line for any pattern is remembered,
* to avoid having to try for a match in each column.
* If next_match_idx == -1, not tried (in this line) yet.
* If next_match_col == MAXCOL, no match found in this line.
* (All end positions have the column of the char after the end)
*/
static int next_match_col; /* column for start of next match */
static lpos_T next_match_m_endpos; /* position for end of next match */
static lpos_T next_match_h_startpos; /* pos. for highl. start of next match */
static lpos_T next_match_h_endpos; /* pos. for highl. end of next match */
static int next_match_idx; /* index of matched item */
static long next_match_flags; /* flags for next match */
static lpos_T next_match_eos_pos; /* end of start pattn (start region) */
static lpos_T next_match_eoe_pos; /* pos. for end of end pattern */
static int next_match_end_idx; /* ID of group for end pattn or zero */
static reg_extmatch_T *next_match_extmatch = NULL;
/*
* A state stack is an array of integers or stateitem_T, stored in a
* garray_T. A state stack is invalid if it's itemsize entry is zero.
*/
#define INVALID_STATE(ssp) ((ssp)->ga_itemsize == 0)
#define VALID_STATE(ssp) ((ssp)->ga_itemsize != 0)
/*
* The current state (within the line) of the recognition engine.
* When current_state.ga_itemsize is 0 the current state is invalid.
*/
static win_T *syn_win; /* current window for highlighting */
static buf_T *syn_buf; /* current buffer for highlighting */
static linenr_T current_lnum = 0; /* lnum of current state */
static colnr_T current_col = 0; /* column of current state */
static int current_state_stored = 0; /* TRUE if stored current state
* after setting current_finished */
static int current_finished = 0; /* current line has been finished */
static garray_T current_state /* current stack of state_items */
= {0, 0, 0, 0, NULL};
static short *current_next_list = NULL; /* when non-zero, nextgroup list */
static int current_next_flags = 0; /* flags for current_next_list */
static int current_line_id = 0; /* unique number for current line */
#define CUR_STATE(idx) ((stateitem_T *)(current_state.ga_data))[idx]
static void syn_sync __ARGS((win_T *wp, linenr_T lnum, synstate_T *last_valid));
static int syn_match_linecont __ARGS((linenr_T lnum));
static void syn_start_line __ARGS((void));
static void syn_update_ends __ARGS((int startofline));
static void syn_stack_alloc __ARGS((void));
static int syn_stack_cleanup __ARGS((void));
static void syn_stack_free_entry __ARGS((buf_T *buf, synstate_T *p));
static synstate_T *syn_stack_find_entry __ARGS((linenr_T lnum));
static synstate_T *store_current_state __ARGS((synstate_T *sp));
static void load_current_state __ARGS((synstate_T *from));
static void invalidate_current_state __ARGS((void));
static int syn_stack_equal __ARGS((synstate_T *sp));
static void validate_current_state __ARGS((void));
static int syn_finish_line __ARGS((int syncing));
static int syn_current_attr __ARGS((int syncing, int displaying, int *can_spell));
static int did_match_already __ARGS((int idx, garray_T *gap));
static stateitem_T *push_next_match __ARGS((stateitem_T *cur_si));
static void check_state_ends __ARGS((void));
static void update_si_attr __ARGS((int idx));
static void check_keepend __ARGS((void));
static void update_si_end __ARGS((stateitem_T *sip, int startcol, int force));
static short *copy_id_list __ARGS((short *list));
static int in_id_list __ARGS((stateitem_T *item, short *cont_list, struct sp_syn *ssp, int contained));
static int push_current_state __ARGS((int idx));
static void pop_current_state __ARGS((void));
static void find_endpos __ARGS((int idx, lpos_T *startpos, lpos_T *m_endpos, lpos_T *hl_endpos, long *flagsp, lpos_T *end_endpos, int *end_idx, reg_extmatch_T *start_ext));
static void clear_syn_state __ARGS((synstate_T *p));
static void clear_current_state __ARGS((void));
static void limit_pos __ARGS((lpos_T *pos, lpos_T *limit));
static void limit_pos_zero __ARGS((lpos_T *pos, lpos_T *limit));
static void syn_add_end_off __ARGS((lpos_T *result, regmmatch_T *regmatch, synpat_T *spp, int idx, int extra));
static void syn_add_start_off __ARGS((lpos_T *result, regmmatch_T *regmatch, synpat_T *spp, int idx, int extra));
static char_u *syn_getcurline __ARGS((void));
static int syn_regexec __ARGS((regmmatch_T *rmp, linenr_T lnum, colnr_T col));
static int check_keyword_id __ARGS((char_u *line, int startcol, int *endcol, long *flags, short **next_list, stateitem_T *cur_si));
static void syn_cmd_case __ARGS((exarg_T *eap, int syncing));
static void syn_cmd_spell __ARGS((exarg_T *eap, int syncing));
static void syntax_sync_clear __ARGS((void));
static void syn_remove_pattern __ARGS((buf_T *buf, int idx));
static void syn_clear_pattern __ARGS((buf_T *buf, int i));
static void syn_clear_cluster __ARGS((buf_T *buf, int i));
static void syn_cmd_clear __ARGS((exarg_T *eap, int syncing));
static void syn_clear_one __ARGS((int id, int syncing));
static void syn_cmd_on __ARGS((exarg_T *eap, int syncing));
static void syn_cmd_enable __ARGS((exarg_T *eap, int syncing));
static void syn_cmd_reset __ARGS((exarg_T *eap, int syncing));
static void syn_cmd_manual __ARGS((exarg_T *eap, int syncing));
static void syn_cmd_off __ARGS((exarg_T *eap, int syncing));
static void syn_cmd_onoff __ARGS((exarg_T *eap, char *name));
static void syn_cmd_list __ARGS((exarg_T *eap, int syncing));
static void syn_lines_msg __ARGS((void));
static void syn_match_msg __ARGS((void));
static void syn_list_one __ARGS((int id, int syncing, int link_only));
static void syn_list_cluster __ARGS((int id));
static void put_id_list __ARGS((char_u *name, short *list, int attr));
static void put_pattern __ARGS((char *s, int c, synpat_T *spp, int attr));
static int syn_list_keywords __ARGS((int id, hashtab_T *ht, int did_header, int attr));
static void syn_clear_keyword __ARGS((int id, hashtab_T *ht));
static void clear_keywtab __ARGS((hashtab_T *ht));
static void add_keyword __ARGS((char_u *name, int id, int flags, short *cont_in_list, short *next_list));
static char_u *get_group_name __ARGS((char_u *arg, char_u **name_end));
static char_u *get_syn_options __ARGS((char_u *arg, syn_opt_arg_T *opt));
static void syn_cmd_include __ARGS((exarg_T *eap, int syncing));
static void syn_cmd_keyword __ARGS((exarg_T *eap, int syncing));
static void syn_cmd_match __ARGS((exarg_T *eap, int syncing));
static void syn_cmd_region __ARGS((exarg_T *eap, int syncing));
#ifdef __BORLANDC__
static int _RTLENTRYF syn_compare_stub __ARGS((const void *v1, const void *v2));
#else
static int syn_compare_stub __ARGS((const void *v1, const void *v2));
#endif
static void syn_cmd_cluster __ARGS((exarg_T *eap, int syncing));
static int syn_scl_name2id __ARGS((char_u *name));
static int syn_scl_namen2id __ARGS((char_u *linep, int len));
static int syn_check_cluster __ARGS((char_u *pp, int len));
static int syn_add_cluster __ARGS((char_u *name));
static void init_syn_patterns __ARGS((void));
static char_u *get_syn_pattern __ARGS((char_u *arg, synpat_T *ci));
static void syn_cmd_sync __ARGS((exarg_T *eap, int syncing));
static int get_id_list __ARGS((char_u **arg, int keylen, short **list));
static void syn_combine_list __ARGS((short **clstr1, short **clstr2, int list_op));
static void syn_incl_toplevel __ARGS((int id, int *flagsp));
/*
* Start the syntax recognition for a line. This function is normally called
* from the screen updating, once for each displayed line.
* The buffer is remembered in syn_buf, because get_syntax_attr() doesn't get
* it. Careful: curbuf and curwin are likely to point to another buffer and
* window.
*/
void
syntax_start(wp, lnum)
win_T *wp;
linenr_T lnum;
{
synstate_T *p;
synstate_T *last_valid = NULL;
synstate_T *last_min_valid = NULL;
synstate_T *sp, *prev;
linenr_T parsed_lnum;
linenr_T first_stored;
int dist;
static int changedtick = 0; /* remember the last change ID */
/*
* After switching buffers, invalidate current_state.
* Also do this when a change was made, the current state may be invalid
* then.
*/
if (syn_buf != wp->w_buffer || changedtick != syn_buf->b_changedtick)
{
invalidate_current_state();
syn_buf = wp->w_buffer;
}
changedtick = syn_buf->b_changedtick;
syn_win = wp;
/*
* Allocate syntax stack when needed.
*/
syn_stack_alloc();
if (syn_buf->b_sst_array == NULL)
return; /* out of memory */
syn_buf->b_sst_lasttick = display_tick;
/*
* If the state of the end of the previous line is useful, store it.
*/
if (VALID_STATE(¤t_state)
&& current_lnum < lnum
&& current_lnum < syn_buf->b_ml.ml_line_count)
{
(void)syn_finish_line(FALSE);
if (!current_state_stored)
{
++current_lnum;
(void)store_current_state(NULL);
}
/*
* If the current_lnum is now the same as "lnum", keep the current
* state (this happens very often!). Otherwise invalidate
* current_state and figure it out below.
*/
if (current_lnum != lnum)
invalidate_current_state();
}
else
invalidate_current_state();
/*
* Try to synchronize from a saved state in b_sst_array[].
* Only do this if lnum is not before and not to far beyond a saved state.
*/
if (INVALID_STATE(¤t_state) && syn_buf->b_sst_array != NULL)
{
/* Find last valid saved state before start_lnum. */
for (p = syn_buf->b_sst_first; p != NULL; p = p->sst_next)
{
if (p->sst_lnum > lnum)
break;
if (p->sst_lnum <= lnum && p->sst_change_lnum == 0)
{
last_valid = p;
if (p->sst_lnum >= lnum - syn_buf->b_syn_sync_minlines)
last_min_valid = p;
}
}
if (last_min_valid != NULL)
load_current_state(last_min_valid);
}
/*
* If "lnum" is before or far beyond a line with a saved state, need to
* re-synchronize.
*/
if (INVALID_STATE(¤t_state))
{
syn_sync(wp, lnum, last_valid);
first_stored = current_lnum + syn_buf->b_syn_sync_minlines;
}
else
first_stored = current_lnum;
/*
* Advance from the sync point or saved state until the current line.
* Save some entries for syncing with later on.
*/
if (syn_buf->b_sst_len <= Rows)
dist = 999999;
else
dist = syn_buf->b_ml.ml_line_count / (syn_buf->b_sst_len - Rows) + 1;
prev = syn_stack_find_entry(current_lnum);
while (current_lnum < lnum)
{
syn_start_line();
(void)syn_finish_line(FALSE);
++current_lnum;
/* If we parsed at least "minlines" lines or started at a valid
* state, the current state is considered valid. */
if (current_lnum >= first_stored)
{
/* Check if the saved state entry is for the current line and is
* equal to the current state. If so, then validate all saved
* states that depended on a change before the parsed line. */
if (prev == NULL)
sp = syn_buf->b_sst_first;
else
sp = prev->sst_next;
if (sp != NULL
&& sp->sst_lnum == current_lnum
&& syn_stack_equal(sp))
{
parsed_lnum = current_lnum;
prev = sp;
while (sp != NULL && sp->sst_change_lnum <= parsed_lnum)
{
if (sp->sst_lnum <= lnum)
/* valid state before desired line, use this one */
prev = sp;
else if (sp->sst_change_lnum == 0)
/* past saved states depending on change, break here. */
break;
sp->sst_change_lnum = 0;
sp = sp->sst_next;
}
load_current_state(prev);
}
/* Store the state at this line when it's the first one, the line
* where we start parsing, or some distance from the previously
* saved state. But only when parsed at least 'minlines'. */
else if (prev == NULL
|| current_lnum == lnum
|| current_lnum >= prev->sst_lnum + dist)
prev = store_current_state(prev);
}
/* This can take a long time: break when CTRL-C pressed. The current
* state will be wrong then. */
line_breakcheck();
if (got_int)
{
current_lnum = lnum;
break;
}
}
syn_start_line();
}
/*
* We cannot simply discard growarrays full of state_items or buf_states; we
* have to manually release their extmatch pointers first.
*/
static void
clear_syn_state(p)
synstate_T *p;
{
int i;
garray_T *gap;
if (p->sst_stacksize > SST_FIX_STATES)
{
gap = &(p->sst_union.sst_ga);
for (i = 0; i < gap->ga_len; i++)
unref_extmatch(SYN_STATE_P(gap)[i].bs_extmatch);
ga_clear(gap);
}
else
{
for (i = 0; i < p->sst_stacksize; i++)
unref_extmatch(p->sst_union.sst_stack[i].bs_extmatch);
}
}
/*
* Cleanup the current_state stack.
*/
static void
clear_current_state()
{
int i;
stateitem_T *sip;
sip = (stateitem_T *)(current_state.ga_data);
for (i = 0; i < current_state.ga_len; i++)
unref_extmatch(sip[i].si_extmatch);
ga_clear(¤t_state);
}
/*
* Try to find a synchronisation point for line "lnum".
*
* This sets current_lnum and the current state. One of three methods is
* used:
* 1. Search backwards for the end of a C-comment.
* 2. Search backwards for given sync patterns.
* 3. Simply start on a given number of lines above "lnum".
*/
static void
syn_sync(wp, start_lnum, last_valid)
win_T *wp;
linenr_T start_lnum;
synstate_T *last_valid;
{
buf_T *curbuf_save;
win_T *curwin_save;
pos_T cursor_save;
int idx;
linenr_T lnum;
linenr_T end_lnum;
linenr_T break_lnum;
int had_sync_point;
stateitem_T *cur_si;
synpat_T *spp;
char_u *line;
int found_flags = 0;
int found_match_idx = 0;
linenr_T found_current_lnum = 0;
int found_current_col= 0;
lpos_T found_m_endpos;
colnr_T prev_current_col;
/*
* Clear any current state that might be hanging around.
*/
invalidate_current_state();
/*
* Start at least "minlines" back. Default starting point for parsing is
* there.
* Start further back, to avoid that scrolling backwards will result in
* resyncing for every line. Now it resyncs only one out of N lines,
* where N is minlines * 1.5, or minlines * 2 if minlines is small.
* Watch out for overflow when minlines is MAXLNUM.
*/
if (syn_buf->b_syn_sync_minlines > start_lnum)
start_lnum = 1;
else
{
if (syn_buf->b_syn_sync_minlines == 1)
lnum = 1;
else if (syn_buf->b_syn_sync_minlines < 10)
lnum = syn_buf->b_syn_sync_minlines * 2;
else
lnum = syn_buf->b_syn_sync_minlines * 3 / 2;
if (syn_buf->b_syn_sync_maxlines != 0
&& lnum > syn_buf->b_syn_sync_maxlines)
lnum = syn_buf->b_syn_sync_maxlines;
if (lnum >= start_lnum)
start_lnum = 1;
else
start_lnum -= lnum;
}
current_lnum = start_lnum;
/*
* 1. Search backwards for the end of a C-style comment.
*/
if (syn_buf->b_syn_sync_flags & SF_CCOMMENT)
{
/* Need to make syn_buf the current buffer for a moment, to be able to
* use find_start_comment(). */
curwin_save = curwin;
curwin = wp;
curbuf_save = curbuf;
curbuf = syn_buf;
/*
* Skip lines that end in a backslash.
*/
for ( ; start_lnum > 1; --start_lnum)
{
line = ml_get(start_lnum - 1);
if (*line == NUL || *(line + STRLEN(line) - 1) != '\\')
break;
}
current_lnum = start_lnum;
/* set cursor to start of search */
cursor_save = wp->w_cursor;
wp->w_cursor.lnum = start_lnum;
wp->w_cursor.col = 0;
/*
* If the line is inside a comment, need to find the syntax item that
* defines the comment.
* Restrict the search for the end of a comment to b_syn_sync_maxlines.
*/
if (find_start_comment((int)syn_buf->b_syn_sync_maxlines) != NULL)
{
for (idx = syn_buf->b_syn_patterns.ga_len; --idx >= 0; )
if (SYN_ITEMS(syn_buf)[idx].sp_syn.id == syn_buf->b_syn_sync_id
&& SYN_ITEMS(syn_buf)[idx].sp_type == SPTYPE_START)
{
validate_current_state();
if (push_current_state(idx) == OK)
update_si_attr(current_state.ga_len - 1);
break;
}
}
/* restore cursor and buffer */
wp->w_cursor = cursor_save;
curwin = curwin_save;
curbuf = curbuf_save;
}
/*
* 2. Search backwards for given sync patterns.
*/
else if (syn_buf->b_syn_sync_flags & SF_MATCH)
{
if (syn_buf->b_syn_sync_maxlines != 0
&& start_lnum > syn_buf->b_syn_sync_maxlines)
break_lnum = start_lnum - syn_buf->b_syn_sync_maxlines;
else
break_lnum = 0;
found_m_endpos.lnum = 0;
found_m_endpos.col = 0;
end_lnum = start_lnum;
lnum = start_lnum;
while (--lnum > break_lnum)
{
/* This can take a long time: break when CTRL-C pressed. */
line_breakcheck();
if (got_int)
{
invalidate_current_state();
current_lnum = start_lnum;
break;
}
/* Check if we have run into a valid saved state stack now. */
if (last_valid != NULL && lnum == last_valid->sst_lnum)
{
load_current_state(last_valid);
break;
}
/*
* Check if the previous line has the line-continuation pattern.
*/
if (lnum > 1 && syn_match_linecont(lnum - 1))
continue;
/*
* Start with nothing on the state stack
*/
validate_current_state();
for (current_lnum = lnum; current_lnum < end_lnum; ++current_lnum)
{
syn_start_line();
for (;;)
{
had_sync_point = syn_finish_line(TRUE);
/*
* When a sync point has been found, remember where, and
* continue to look for another one, further on in the line.
*/
if (had_sync_point && current_state.ga_len)
{
cur_si = &CUR_STATE(current_state.ga_len - 1);
if (cur_si->si_m_endpos.lnum > start_lnum)
{
/* ignore match that goes to after where started */
current_lnum = end_lnum;
break;
}
spp = &(SYN_ITEMS(syn_buf)[cur_si->si_idx]);
found_flags = spp->sp_flags;
found_match_idx = spp->sp_sync_idx;
found_current_lnum = current_lnum;
found_current_col = current_col;
found_m_endpos = cur_si->si_m_endpos;
/*
* Continue after the match (be aware of a zero-length
* match).
*/
if (found_m_endpos.lnum > current_lnum)
{
current_lnum = found_m_endpos.lnum;
current_col = found_m_endpos.col;
if (current_lnum >= end_lnum)
break;
}
else if (found_m_endpos.col > current_col)
current_col = found_m_endpos.col;
else
++current_col;
/* syn_current_attr() will have skipped the check for
* an item that ends here, need to do that now. Be
* careful not to go past the NUL. */
prev_current_col = current_col;
if (syn_getcurline()[current_col] != NUL)
++current_col;
check_state_ends();
current_col = prev_current_col;
}
else
break;
}
}
/*
* If a sync point was encountered, break here.
*/
if (found_flags)
{
/*
* Put the item that was specified by the sync point on the
* state stack. If there was no item specified, make the
* state stack empty.
*/
clear_current_state();
if (found_match_idx >= 0
&& push_current_state(found_match_idx) == OK)
update_si_attr(current_state.ga_len - 1);
/*
* When using "grouphere", continue from the sync point
* match, until the end of the line. Parsing starts at
* the next line.
* For "groupthere" the parsing starts at start_lnum.
*/
if (found_flags & HL_SYNC_HERE)
{
if (current_state.ga_len)
{
cur_si = &CUR_STATE(current_state.ga_len - 1);
cur_si->si_h_startpos.lnum = found_current_lnum;
cur_si->si_h_startpos.col = found_current_col;
update_si_end(cur_si, (int)current_col, TRUE);
check_keepend();
}
current_col = found_m_endpos.col;
current_lnum = found_m_endpos.lnum;
(void)syn_finish_line(FALSE);
++current_lnum;
}
else
current_lnum = start_lnum;
break;
}
end_lnum = lnum;
invalidate_current_state();
}
/* Ran into start of the file or exceeded maximum number of lines */
if (lnum <= break_lnum)
{
invalidate_current_state();
current_lnum = break_lnum + 1;
}
}
validate_current_state();
}
/*
* Return TRUE if the line-continuation pattern matches in line "lnum".
*/
static int
syn_match_linecont(lnum)
linenr_T lnum;
{
regmmatch_T regmatch;
if (syn_buf->b_syn_linecont_prog != NULL)
{
regmatch.rmm_ic = syn_buf->b_syn_linecont_ic;
regmatch.regprog = syn_buf->b_syn_linecont_prog;
return syn_regexec(®match, lnum, (colnr_T)0);
}
return FALSE;
}
/*
* Prepare the current state for the start of a line.
*/
static void
syn_start_line()
{
current_finished = FALSE;
current_col = 0;
/*
* Need to update the end of a start/skip/end that continues from the
* previous line and regions that have "keepend".
*/
if (current_state.ga_len > 0)
syn_update_ends(TRUE);
next_match_idx = -1;
++current_line_id;
}
/*
* Check for items in the stack that need their end updated.
* When "startofline" is TRUE the last item is always updated.
* When "startofline" is FALSE the item with "keepend" is forcefully updated.
*/
static void
syn_update_ends(startofline)
int startofline;
{
stateitem_T *cur_si;
int i;
int seen_keepend;
if (startofline)
{
/* Check for a match carried over from a previous line with a
* contained region. The match ends as soon as the region ends. */
for (i = 0; i < current_state.ga_len; ++i)
{
cur_si = &CUR_STATE(i);
if (cur_si->si_idx >= 0
&& (SYN_ITEMS(syn_buf)[cur_si->si_idx]).sp_type
== SPTYPE_MATCH
&& cur_si->si_m_endpos.lnum < current_lnum)
{
cur_si->si_flags |= HL_MATCHCONT;
cur_si->si_m_endpos.lnum = 0;
cur_si->si_m_endpos.col = 0;
cur_si->si_h_endpos = cur_si->si_m_endpos;
cur_si->si_ends = TRUE;
}
}
}
/*
* Need to update the end of a start/skip/end that continues from the
* previous line. And regions that have "keepend", because they may
* influence contained items. If we've just removed "extend"
* (startofline == 0) then we should update ends of normal regions
* contained inside "keepend" because "extend" could have extended
* these "keepend" regions as well as contained normal regions.
* Then check for items ending in column 0.
*/
i = current_state.ga_len - 1;
if (keepend_level >= 0)
for ( ; i > keepend_level; --i)
if (CUR_STATE(i).si_flags & HL_EXTEND)
break;
seen_keepend = FALSE;
for ( ; i < current_state.ga_len; ++i)
{
cur_si = &CUR_STATE(i);
if ((cur_si->si_flags & HL_KEEPEND)
|| (seen_keepend && !startofline)
|| (i == current_state.ga_len - 1 && startofline))
{
cur_si->si_h_startpos.col = 0; /* start highl. in col 0 */
cur_si->si_h_startpos.lnum = current_lnum;
if (!(cur_si->si_flags & HL_MATCHCONT))
update_si_end(cur_si, (int)current_col, !startofline);
if (!startofline && (cur_si->si_flags & HL_KEEPEND))
seen_keepend = TRUE;
}
}
check_keepend();
check_state_ends();
}
/****************************************
* Handling of the state stack cache.
*/
/*
* EXPLANATION OF THE SYNTAX STATE STACK CACHE
*
* To speed up syntax highlighting, the state stack for the start of some
* lines is cached. These entries can be used to start parsing at that point.
*
* The stack is kept in b_sst_array[] for each buffer. There is a list of
* valid entries. b_sst_first points to the first one, then follow sst_next.
* The entries are sorted on line number. The first entry is often for line 2
* (line 1 always starts with an empty stack).
* There is also a list for free entries. This construction is used to avoid
* having to allocate and free memory blocks too often.
*
* When making changes to the buffer, this is logged in b_mod_*. When calling
* update_screen() to update the display, it will call
* syn_stack_apply_changes() for each displayed buffer to adjust the cached
* entries. The entries which are inside the changed area are removed,
* because they must be recomputed. Entries below the changed have their line
* number adjusted for deleted/inserted lines, and have their sst_change_lnum
* set to indicate that a check must be made if the changed lines would change
* the cached entry.
*
* When later displaying lines, an entry is stored for each line. Displayed
* lines are likely to be displayed again, in which case the state at the
* start of the line is needed.
* For not displayed lines, an entry is stored for every so many lines. These
* entries will be used e.g., when scrolling backwards. The distance between
* entries depends on the number of lines in the buffer. For small buffers
* the distance is fixed at SST_DIST, for large buffers there is a fixed
* number of entries SST_MAX_ENTRIES, and the distance is computed.
*/
/*
* Free b_sst_array[] for buffer "buf".
* Used when syntax items changed to force resyncing everywhere.
*/
void
syn_stack_free_all(buf)
buf_T *buf;
{
synstate_T *p;
win_T *wp;
if (buf->b_sst_array != NULL)
{
for (p = buf->b_sst_first; p != NULL; p = p->sst_next)
clear_syn_state(p);
vim_free(buf->b_sst_array);
buf->b_sst_array = NULL;
buf->b_sst_len = 0;
}
#ifdef FEAT_FOLDING
/* When using "syntax" fold method, must update all folds. */
FOR_ALL_WINDOWS(wp)
{
if (wp->w_buffer == buf && foldmethodIsSyntax(wp))
foldUpdateAll(wp);
}
#endif
}
/*
* Allocate the syntax state stack for syn_buf when needed.
* If the number of entries in b_sst_array[] is much too big or a bit too
* small, reallocate it.
* Also used to allocate b_sst_array[] for the first time.
*/
static void
syn_stack_alloc()
{
long len;
synstate_T *to, *from;
synstate_T *sstp;
len = syn_buf->b_ml.ml_line_count / SST_DIST + Rows * 2;
if (len < SST_MIN_ENTRIES)
len = SST_MIN_ENTRIES;
else if (len > SST_MAX_ENTRIES)
len = SST_MAX_ENTRIES;
if (syn_buf->b_sst_len > len * 2 || syn_buf->b_sst_len < len)
{
/* Allocate 50% too much, to avoid reallocating too often. */
len = syn_buf->b_ml.ml_line_count;
len = (len + len / 2) / SST_DIST + Rows * 2;
if (len < SST_MIN_ENTRIES)
len = SST_MIN_ENTRIES;
else if (len > SST_MAX_ENTRIES)
len = SST_MAX_ENTRIES;
if (syn_buf->b_sst_array != NULL)
{
/* When shrinking the array, cleanup the existing stack.
* Make sure that all valid entries fit in the new array. */
while (syn_buf->b_sst_len - syn_buf->b_sst_freecount + 2 > len
&& syn_stack_cleanup())
;
if (len < syn_buf->b_sst_len - syn_buf->b_sst_freecount + 2)
len = syn_buf->b_sst_len - syn_buf->b_sst_freecount + 2;
}
sstp = (synstate_T *)alloc_clear((unsigned)(len * sizeof(synstate_T)));
if (sstp == NULL) /* out of memory! */
return;
to = sstp - 1;
if (syn_buf->b_sst_array != NULL)
{
/* Move the states from the old array to the new one. */
for (from = syn_buf->b_sst_first; from != NULL;
from = from->sst_next)
{
++to;
*to = *from;
to->sst_next = to + 1;
}
}
if (to != sstp - 1)
{
to->sst_next = NULL;
syn_buf->b_sst_first = sstp;
syn_buf->b_sst_freecount = len - (int)(to - sstp) - 1;
}
else
{
syn_buf->b_sst_first = NULL;
syn_buf->b_sst_freecount = len;
}
/* Create the list of free entries. */
syn_buf->b_sst_firstfree = to + 1;
while (++to < sstp + len)
to->sst_next = to + 1;
(sstp + len - 1)->sst_next = NULL;
vim_free(syn_buf->b_sst_array);
syn_buf->b_sst_array = sstp;
syn_buf->b_sst_len = len;
}
}
/*
* Check for changes in a buffer to affect stored syntax states. Uses the
* b_mod_* fields.
* Called from update_screen(), before screen is being updated, once for each
* displayed buffer.
*/
void
syn_stack_apply_changes(buf)
buf_T *buf;
{
synstate_T *p, *prev, *np;
linenr_T n;
if (buf->b_sst_array == NULL) /* nothing to do */
return;
prev = NULL;
for (p = buf->b_sst_first; p != NULL; )
{
if (p->sst_lnum + buf->b_syn_sync_linebreaks > buf->b_mod_top)
{
n = p->sst_lnum + buf->b_mod_xlines;
if (n <= buf->b_mod_bot)
{
/* this state is inside the changed area, remove it */
np = p->sst_next;
if (prev == NULL)
buf->b_sst_first = np;
else
prev->sst_next = np;
syn_stack_free_entry(buf, p);
p = np;
continue;
}
/* This state is below the changed area. Remember the line
* that needs to be parsed before this entry can be made valid
* again. */
if (p->sst_change_lnum != 0 && p->sst_change_lnum > buf->b_mod_top)
{
if (p->sst_change_lnum + buf->b_mod_xlines > buf->b_mod_top)
p->sst_change_lnum += buf->b_mod_xlines;
else
p->sst_change_lnum = buf->b_mod_top;
}
if (p->sst_change_lnum == 0
|| p->sst_change_lnum < buf->b_mod_bot)
p->sst_change_lnum = buf->b_mod_bot;
p->sst_lnum = n;
}
prev = p;
p = p->sst_next;
}
}
/*
* Reduce the number of entries in the state stack for syn_buf.
* Returns TRUE if at least one entry was freed.
*/
static int
syn_stack_cleanup()
{
synstate_T *p, *prev;
disptick_T tick;
int above;
int dist;
int retval = FALSE;
if (syn_buf->b_sst_array == NULL || syn_buf->b_sst_first == NULL)
return retval;
/* Compute normal distance between non-displayed entries. */
if (syn_buf->b_sst_len <= Rows)
dist = 999999;
else
dist = syn_buf->b_ml.ml_line_count / (syn_buf->b_sst_len - Rows) + 1;
/*
* Go throught the list to find the "tick" for the oldest entry that can
* be removed. Set "above" when the "tick" for the oldest entry is above
* "b_sst_lasttick" (the display tick wraps around).
*/
tick = syn_buf->b_sst_lasttick;
above = FALSE;
prev = syn_buf->b_sst_first;
for (p = prev->sst_next; p != NULL; prev = p, p = p->sst_next)
{
if (prev->sst_lnum + dist > p->sst_lnum)
{
if (p->sst_tick > syn_buf->b_sst_lasttick)
{
if (!above || p->sst_tick < tick)
tick = p->sst_tick;
above = TRUE;
}
else if (!above && p->sst_tick < tick)
tick = p->sst_tick;
}
}
/*
* Go through the list to make the entries for the oldest tick at an
* interval of several lines.
*/
prev = syn_buf->b_sst_first;
for (p = prev->sst_next; p != NULL; prev = p, p = p->sst_next)
{
if (p->sst_tick == tick && prev->sst_lnum + dist > p->sst_lnum)
{
/* Move this entry from used list to free list */
prev->sst_next = p->sst_next;
syn_stack_free_entry(syn_buf, p);
p = prev;
retval = TRUE;
}
}
return retval;
}
/*
* Free the allocated memory for a syn_state item.
* Move the entry into the free list.
*/
static void
syn_stack_free_entry(buf, p)
buf_T *buf;
synstate_T *p;
{
clear_syn_state(p);
p->sst_next = buf->b_sst_firstfree;
buf->b_sst_firstfree = p;
++buf->b_sst_freecount;
}
/*
* Find an entry in the list of state stacks at or before "lnum".
* Returns NULL when there is no entry or the first entry is after "lnum".
*/
static synstate_T *
syn_stack_find_entry(lnum)
linenr_T lnum;
{
synstate_T *p, *prev;
prev = NULL;
for (p = syn_buf->b_sst_first; p != NULL; prev = p, p = p->sst_next)
{
if (p->sst_lnum == lnum)
return p;
if (p->sst_lnum > lnum)
break;
}
return prev;
}
/*
* Try saving the current state in b_sst_array[].
* The current state must be valid for the start of the current_lnum line!
*/
static synstate_T *
store_current_state(sp)
synstate_T *sp; /* at or before where state is to be saved or
NULL */
{
int i;
synstate_T *p;
bufstate_T *bp;
stateitem_T *cur_si;
if (sp == NULL)
sp = syn_stack_find_entry(current_lnum);
/*
* If the current state contains a start or end pattern that continues
* from the previous line, we can't use it. Don't store it then.
*/
for (i = current_state.ga_len - 1; i >= 0; --i)
{
cur_si = &CUR_STATE(i);
if (cur_si->si_h_startpos.lnum >= current_lnum
|| cur_si->si_m_endpos.lnum >= current_lnum
|| cur_si->si_h_endpos.lnum >= current_lnum
|| (cur_si->si_end_idx
&& cur_si->si_eoe_pos.lnum >= current_lnum))
break;
}
if (i >= 0)
{
if (sp != NULL)
{
/* find "sp" in the list and remove it */
if (syn_buf->b_sst_first == sp)
/* it's the first entry */
syn_buf->b_sst_first = sp->sst_next;
else
{
/* find the entry just before this one to adjust sst_next */
for (p = syn_buf->b_sst_first; p != NULL; p = p->sst_next)
if (p->sst_next == sp)
break;
if (p != NULL) /* just in case */
p->sst_next = sp->sst_next;
}
syn_stack_free_entry(syn_buf, sp);
sp = NULL;
}
}
else if (sp == NULL || sp->sst_lnum != current_lnum)
{
/*
* Add a new entry
*/
/* If no free items, cleanup the array first. */
if (syn_buf->b_sst_freecount == 0)
{
(void)syn_stack_cleanup();
/* "sp" may have been moved to the freelist now */
sp = syn_stack_find_entry(current_lnum);
}
/* Still no free items? Must be a strange problem... */
if (syn_buf->b_sst_freecount == 0)
sp = NULL;
else
{
/* Take the first item from the free list and put it in the used
* list, after *sp */
p = syn_buf->b_sst_firstfree;
syn_buf->b_sst_firstfree = p->sst_next;
--syn_buf->b_sst_freecount;
if (sp == NULL)
{
/* Insert in front of the list */
p->sst_next = syn_buf->b_sst_first;
syn_buf->b_sst_first = p;
}
else
{
/* insert in list after *sp */
p->sst_next = sp->sst_next;
sp->sst_next = p;
}
sp = p;
sp->sst_stacksize = 0;
sp->sst_lnum = current_lnum;
}
}
if (sp != NULL)
{
/* When overwriting an existing state stack, clear it first */
clear_syn_state(sp);
sp->sst_stacksize = current_state.ga_len;
if (current_state.ga_len > SST_FIX_STATES)
{
/* Need to clear it, might be something remaining from when the
* length was less than SST_FIX_STATES. */
ga_init2(&sp->sst_union.sst_ga, (int)sizeof(bufstate_T), 1);
if (ga_grow(&sp->sst_union.sst_ga, current_state.ga_len) == FAIL)
sp->sst_stacksize = 0;
else
sp->sst_union.sst_ga.ga_len = current_state.ga_len;
bp = SYN_STATE_P(&(sp->sst_union.sst_ga));
}
else
bp = sp->sst_union.sst_stack;
for (i = 0; i < sp->sst_stacksize; ++i)
{
bp[i].bs_idx = CUR_STATE(i).si_idx;
bp[i].bs_flags = CUR_STATE(i).si_flags;
bp[i].bs_extmatch = ref_extmatch(CUR_STATE(i).si_extmatch);
}
sp->sst_next_flags = current_next_flags;
sp->sst_next_list = current_next_list;
sp->sst_tick = display_tick;
sp->sst_change_lnum = 0;
}
current_state_stored = TRUE;
return sp;
}
/*
* Copy a state stack from "from" in b_sst_array[] to current_state;
*/
static void
load_current_state(from)
synstate_T *from;
{
int i;
bufstate_T *bp;
clear_current_state();
validate_current_state();
keepend_level = -1;
if (from->sst_stacksize
&& ga_grow(¤t_state, from->sst_stacksize) != FAIL)
{
if (from->sst_stacksize > SST_FIX_STATES)
bp = SYN_STATE_P(&(from->sst_union.sst_ga));
else
bp = from->sst_union.sst_stack;
for (i = 0; i < from->sst_stacksize; ++i)
{
CUR_STATE(i).si_idx = bp[i].bs_idx;
CUR_STATE(i).si_flags = bp[i].bs_flags;
CUR_STATE(i).si_extmatch = ref_extmatch(bp[i].bs_extmatch);
if (keepend_level < 0 && (CUR_STATE(i).si_flags & HL_KEEPEND))
keepend_level = i;
CUR_STATE(i).si_ends = FALSE;
CUR_STATE(i).si_m_lnum = 0;
if (CUR_STATE(i).si_idx >= 0)
CUR_STATE(i).si_next_list =
(SYN_ITEMS(syn_buf)[CUR_STATE(i).si_idx]).sp_next_list;
else
CUR_STATE(i).si_next_list = NULL;
update_si_attr(i);
}
current_state.ga_len = from->sst_stacksize;
}
current_next_list = from->sst_next_list;
current_next_flags = from->sst_next_flags;
current_lnum = from->sst_lnum;
}
/*
* Compare saved state stack "*sp" with the current state.
* Return TRUE when they are equal.
*/
static int
syn_stack_equal(sp)
synstate_T *sp;
{
int i, j;
bufstate_T *bp;
reg_extmatch_T *six, *bsx;
/* First a quick check if the stacks have the same size end nextlist. */
if (sp->sst_stacksize == current_state.ga_len
&& sp->sst_next_list == current_next_list)
{
/* Need to compare all states on both stacks. */
if (sp->sst_stacksize > SST_FIX_STATES)
bp = SYN_STATE_P(&(sp->sst_union.sst_ga));
else
bp = sp->sst_union.sst_stack;
for (i = current_state.ga_len; --i >= 0; )
{
/* If the item has another index the state is different. */
if (bp[i].bs_idx != CUR_STATE(i).si_idx)
break;
if (bp[i].bs_extmatch != CUR_STATE(i).si_extmatch)
{
/* When the extmatch pointers are different, the strings in
* them can still be the same. Check if the extmatch
* references are equal. */
bsx = bp[i].bs_extmatch;
six = CUR_STATE(i).si_extmatch;
/* If one of the extmatch pointers is NULL the states are
* different. */
if (bsx == NULL || six == NULL)
break;
for (j = 0; j < NSUBEXP; ++j)
{
/* Check each referenced match string. They must all be
* equal. */
if (bsx->matches[j] != six->matches[j])
{
/* If the pointer is different it can still be the
* same text. Compare the strings, ignore case when
* the start item has the sp_ic flag set. */
if (bsx->matches[j] == NULL
|| six->matches[j] == NULL)
break;
if ((SYN_ITEMS(syn_buf)[CUR_STATE(i).si_idx]).sp_ic
? MB_STRICMP(bsx->matches[j],
six->matches[j]) != 0
: STRCMP(bsx->matches[j], six->matches[j]) != 0)
break;
}
}
if (j != NSUBEXP)
break;
}
}
if (i < 0)
return TRUE;
}
return FALSE;
}
/*
* We stop parsing syntax above line "lnum". If the stored state at or below
* this line depended on a change before it, it now depends on the line below
* the last parsed line.
* The window looks like this:
* line which changed
* displayed line
* displayed line
* lnum -> line below window
*/
void
syntax_end_parsing(lnum)
linenr_T lnum;
{
synstate_T *sp;
sp = syn_stack_find_entry(lnum);
if (sp != NULL && sp->sst_lnum < lnum)
sp = sp->sst_next;
if (sp != NULL && sp->sst_change_lnum != 0)
sp->sst_change_lnum = lnum;
}
/*
* End of handling of the state stack.
****************************************/
static void
invalidate_current_state()
{
clear_current_state();
current_state.ga_itemsize = 0; /* mark current_state invalid */
current_next_list = NULL;
keepend_level = -1;
}
static void
validate_current_state()
{
current_state.ga_itemsize = sizeof(stateitem_T);
current_state.ga_growsize = 3;
}
/*
* Return TRUE if the syntax at start of lnum changed since last time.
* This will only be called just after get_syntax_attr() for the previous
* line, to check if the next line needs to be redrawn too.
*/
int
syntax_check_changed(lnum)
linenr_T lnum;
{
int retval = TRUE;
synstate_T *sp;
/*
* Check the state stack when:
* - lnum is just below the previously syntaxed line.
* - lnum is not before the lines with saved states.
* - lnum is not past the lines with saved states.
* - lnum is at or before the last changed line.
*/
if (VALID_STATE(¤t_state) && lnum == current_lnum + 1)
{
sp = syn_stack_find_entry(lnum);
if (sp != NULL && sp->sst_lnum == lnum)
{
/*
* finish the previous line (needed when not all of the line was
* drawn)
*/
(void)syn_finish_line(FALSE);
/*
* Compare the current state with the previously saved state of
* the line.
*/
if (syn_stack_equal(sp))
retval = FALSE;
/*
* Store the current state in b_sst_array[] for later use.
*/
++current_lnum;
(void)store_current_state(NULL);
}
}
return retval;
}
/*
* Finish the current line.
* This doesn't return any attributes, it only gets the state at the end of
* the line. It can start anywhere in the line, as long as the current state
* is valid.
*/
static int
syn_finish_line(syncing)
int syncing; /* called for syncing */
{
stateitem_T *cur_si;
colnr_T prev_current_col;
if (!current_finished)
{
while (!current_finished)
{
(void)syn_current_attr(syncing, FALSE, NULL);
/*
* When syncing, and found some item, need to check the item.
*/
if (syncing && current_state.ga_len)
{
/*
* Check for match with sync item.
*/
cur_si = &CUR_STATE(current_state.ga_len - 1);
if (cur_si->si_idx >= 0
&& (SYN_ITEMS(syn_buf)[cur_si->si_idx].sp_flags
& (HL_SYNC_HERE|HL_SYNC_THERE)))
return TRUE;
/* syn_current_attr() will have skipped the check for an item
* that ends here, need to do that now. Be careful not to go
* past the NUL. */
prev_current_col = current_col;
if (syn_getcurline()[current_col] != NUL)
++current_col;
check_state_ends();
current_col = prev_current_col;
}
++current_col;
}
}
return FALSE;
}
/*
* Return highlight attributes for next character.
* Must first call syntax_start() once for the line.
* "col" is normally 0 for the first use in a line, and increments by one each
* time. It's allowed to skip characters and to stop before the end of the
* line. But only a "col" after a previously used column is allowed.
* When "can_spell" is not NULL set it to TRUE when spell-checking should be
* done.
*/
int
get_syntax_attr(col, can_spell)
colnr_T col;
int *can_spell;
{
int attr = 0;
/* check for out of memory situation */
if (syn_buf->b_sst_array == NULL)
return 0;
/* After 'synmaxcol' the attribute is always zero. */
if (syn_buf->b_p_smc > 0 && col >= (colnr_T)syn_buf->b_p_smc)
{
clear_current_state();
#ifdef FEAT_EVAL
current_id = 0;
current_trans_id = 0;
#endif
return 0;
}
/* Make sure current_state is valid */
if (INVALID_STATE(¤t_state))
validate_current_state();
/*
* Skip from the current column to "col", get the attributes for "col".
*/
while (current_col <= col)
{
attr = syn_current_attr(FALSE, TRUE, can_spell);
++current_col;
}
return attr;
}
/*
* Get syntax attributes for current_lnum, current_col.
*/
static int
syn_current_attr(syncing, displaying, can_spell)
int syncing; /* When 1: called for syncing */
int displaying; /* result will be displayed */
int *can_spell; /* return: do spell checking */
{
int syn_id;
lpos_T endpos; /* was: char_u *endp; */
lpos_T hl_startpos; /* was: int hl_startcol; */
lpos_T hl_endpos;
lpos_T eos_pos; /* end-of-start match (start region) */
lpos_T eoe_pos; /* end-of-end pattern */
int end_idx; /* group ID for end pattern */
int idx;
synpat_T *spp;
stateitem_T *cur_si, *sip = NULL;
int startcol;
int endcol;
long flags;
short *next_list;
int found_match; /* found usable match */
static int try_next_column = FALSE; /* must try in next col */
int do_keywords;
regmmatch_T regmatch;
lpos_T pos;
int lc_col;
reg_extmatch_T *cur_extmatch = NULL;
char_u *line; /* current line. NOTE: becomes invalid after
looking for a pattern match! */
/* variables for zero-width matches that have a "nextgroup" argument */
int keep_next_list;
int zero_width_next_list = FALSE;
garray_T zero_width_next_ga;
/*
* No character, no attributes! Past end of line?
* Do try matching with an empty line (could be the start of a region).
*/
line = syn_getcurline();
if (line[current_col] == NUL && current_col != 0)
{
/*
* If we found a match after the last column, use it.
*/
if (next_match_idx >= 0 && next_match_col >= (int)current_col
&& next_match_col != MAXCOL)
(void)push_next_match(NULL);
current_finished = TRUE;
current_state_stored = FALSE;
return 0;
}
/* if the current or next character is NUL, we will finish the line now */
if (line[current_col] == NUL || line[current_col + 1] == NUL)
{
current_finished = TRUE;
current_state_stored = FALSE;
}
/*
* When in the previous column there was a match but it could not be used
* (empty match or already matched in this column) need to try again in
* the next column.
*/
if (try_next_column)
{
next_match_idx = -1;
try_next_column = FALSE;
}
/* Only check for keywords when not syncing and there are some. */
do_keywords = !syncing
&& (syn_buf->b_keywtab.ht_used > 0
|| syn_buf->b_keywtab_ic.ht_used > 0);
/* Init the list of zero-width matches with a nextlist. This is used to
* avoid matching the same item in the same position twice. */
ga_init2(&zero_width_next_ga, (int)sizeof(int), 10);
/*
* Repeat matching keywords and patterns, to find contained items at the
* same column. This stops when there are no extra matches at the current
* column.
*/
do
{
found_match = FALSE;
keep_next_list = FALSE;
syn_id = 0;
/*
* 1. Check for a current state.
* Only when there is no current state, or if the current state may
* contain other things, we need to check for keywords and patterns.
* Always need to check for contained items if some item has the
* "containedin" argument (takes extra time!).
*/
if (current_state.ga_len)
cur_si = &CUR_STATE(current_state.ga_len - 1);
else
cur_si = NULL;
if (syn_buf->b_syn_containedin || cur_si == NULL
|| cur_si->si_cont_list != NULL)
{
/*
* 2. Check for keywords, if on a keyword char after a non-keyword
* char. Don't do this when syncing.
*/
if (do_keywords)
{
line = syn_getcurline();
if (vim_iswordc_buf(line + current_col, syn_buf)
&& (current_col == 0
|| !vim_iswordc_buf(line + current_col - 1
#ifdef FEAT_MBYTE
- (has_mbyte
? (*mb_head_off)(line, line + current_col - 1)
: 0)
#endif
, syn_buf)))
{
syn_id = check_keyword_id(line, (int)current_col,
&endcol, &flags, &next_list, cur_si);
if (syn_id != 0)
{
if (push_current_state(KEYWORD_IDX) == OK)
{
cur_si = &CUR_STATE(current_state.ga_len - 1);
cur_si->si_m_startcol = current_col;
cur_si->si_h_startpos.lnum = current_lnum;
cur_si->si_h_startpos.col = 0; /* starts right away */
cur_si->si_m_endpos.lnum = current_lnum;
cur_si->si_m_endpos.col = endcol;
cur_si->si_h_endpos.lnum = current_lnum;
cur_si->si_h_endpos.col = endcol;
cur_si->si_ends = TRUE;
cur_si->si_end_idx = 0;
cur_si->si_flags = flags;
cur_si->si_id = syn_id;
cur_si->si_trans_id = syn_id;
if (flags & HL_TRANSP)
{
if (current_state.ga_len < 2)
{
cur_si->si_attr = 0;
cur_si->si_trans_id = 0;
}
else
{
cur_si->si_attr = CUR_STATE(
current_state.ga_len - 2).si_attr;
cur_si->si_trans_id = CUR_STATE(
current_state.ga_len - 2).si_trans_id;
}
}
else
cur_si->si_attr = syn_id2attr(syn_id);
cur_si->si_cont_list = NULL;
cur_si->si_next_list = next_list;
check_keepend();
}
else
vim_free(next_list);
}
}
}
/*
* 3. Check for patterns (only if no keyword found).
*/
if (syn_id == 0 && syn_buf->b_syn_patterns.ga_len)
{
/*
* If we didn't check for a match yet, or we are past it, check
* for any match with a pattern.
*/
if (next_match_idx < 0 || next_match_col < (int)current_col)
{
/*
* Check all relevant patterns for a match at this
* position. This is complicated, because matching with a
* pattern takes quite a bit of time, thus we want to
* avoid doing it when it's not needed.
*/
next_match_idx = 0; /* no match in this line yet */
next_match_col = MAXCOL;
for (idx = syn_buf->b_syn_patterns.ga_len; --idx >= 0; )
{
spp = &(SYN_ITEMS(syn_buf)[idx]);
if ( spp->sp_syncing == syncing
&& (displaying || !(spp->sp_flags & HL_DISPLAY))
&& (spp->sp_type == SPTYPE_MATCH
|| spp->sp_type == SPTYPE_START)
&& (current_next_list != NULL
? in_id_list(NULL, current_next_list,
&spp->sp_syn, 0)
: (cur_si == NULL
? !(spp->sp_flags & HL_CONTAINED)
: in_id_list(cur_si,
cur_si->si_cont_list, &spp->sp_syn,
spp->sp_flags & HL_CONTAINED))))
{
/* If we already tried matching in this line, and
* there isn't a match before next_match_col, skip
* this item. */
if (spp->sp_line_id == current_line_id
&& spp->sp_startcol >= next_match_col)
continue;
spp->sp_line_id = current_line_id;
lc_col = current_col - spp->sp_offsets[SPO_LC_OFF];
if (lc_col < 0)
lc_col = 0;
regmatch.rmm_ic = spp->sp_ic;
regmatch.regprog = spp->sp_prog;
if (!syn_regexec(®match, current_lnum,
(colnr_T)lc_col))
{
/* no match in this line, try another one */
spp->sp_startcol = MAXCOL;
continue;
}
/*
* Compute the first column of the match.
*/
syn_add_start_off(&pos, ®match,
spp, SPO_MS_OFF, -1);
if (pos.lnum > current_lnum)
{
/* must have used end of match in a next line,
* we can't handle that */
spp->sp_startcol = MAXCOL;
continue;
}
startcol = pos.col;
/* remember the next column where this pattern
* matches in the current line */
spp->sp_startcol = startcol;
/*
* If a previously found match starts at a lower
* column number, don't use this one.
*/
if (startcol >= next_match_col)
continue;
/*
* If we matched this pattern at this position
* before, skip it. Must retry in the next
* column, because it may match from there.
*/
if (did_match_already(idx, &zero_width_next_ga))
{
try_next_column = TRUE;
continue;
}
endpos.lnum = regmatch.endpos[0].lnum;
endpos.col = regmatch.endpos[0].col;
/* Compute the highlight start. */
syn_add_start_off(&hl_startpos, ®match,
spp, SPO_HS_OFF, -1);
/* Compute the region start. */
/* Default is to use the end of the match. */
syn_add_end_off(&eos_pos, ®match,
spp, SPO_RS_OFF, 0);
/*
* Grab the external submatches before they get
* overwritten. Reference count doesn't change.
*/
unref_extmatch(cur_extmatch);
cur_extmatch = re_extmatch_out;
re_extmatch_out = NULL;
flags = 0;
eoe_pos.lnum = 0; /* avoid warning */
eoe_pos.col = 0;
end_idx = 0;
hl_endpos.lnum = 0;
/*
* For a "oneline" the end must be found in the
* same line too. Search for it after the end of
* the match with the start pattern. Set the
* resulting end positions at the same time.
*/
if (spp->sp_type == SPTYPE_START
&& (spp->sp_flags & HL_ONELINE))
{
lpos_T startpos;
startpos = endpos;
find_endpos(idx, &startpos, &endpos, &hl_endpos,
&flags, &eoe_pos, &end_idx, cur_extmatch);
if (endpos.lnum == 0)
continue; /* not found */
}
/*
* For a "match" the size must be > 0 after the
* end offset needs has been added. Except when
* syncing.
*/
else if (spp->sp_type == SPTYPE_MATCH)
{
syn_add_end_off(&hl_endpos, ®match, spp,
SPO_HE_OFF, 0);
syn_add_end_off(&endpos, ®match, spp,
SPO_ME_OFF, 0);
if (endpos.lnum == current_lnum
&& (int)endpos.col + syncing < startcol)
{
/*
* If an empty string is matched, may need
* to try matching again at next column.
*/
if (regmatch.startpos[0].col
== regmatch.endpos[0].col)
try_next_column = TRUE;
continue;
}
}
/*
* keep the best match so far in next_match_*
*/
/* Highlighting must start after startpos and end
* before endpos. */
if (hl_startpos.lnum == current_lnum
&& (int)hl_startpos.col < startcol)
hl_startpos.col = startcol;
limit_pos_zero(&hl_endpos, &endpos);
next_match_idx = idx;
next_match_col = startcol;
next_match_m_endpos = endpos;
next_match_h_endpos = hl_endpos;
next_match_h_startpos = hl_startpos;
next_match_flags = flags;
next_match_eos_pos = eos_pos;
next_match_eoe_pos = eoe_pos;
next_match_end_idx = end_idx;
unref_extmatch(next_match_extmatch);
next_match_extmatch = cur_extmatch;
cur_extmatch = NULL;
}
}
}
/*
* If we found a match at the current column, use it.
*/
if (next_match_idx >= 0 && next_match_col == (int)current_col)
{
synpat_T *lspp;
/* When a zero-width item matched which has a nextgroup,
* don't push the item but set nextgroup. */
lspp = &(SYN_ITEMS(syn_buf)[next_match_idx]);
if (next_match_m_endpos.lnum == current_lnum
&& next_match_m_endpos.col == current_col
&& lspp->sp_next_list != NULL)
{
current_next_list = lspp->sp_next_list;
current_next_flags = lspp->sp_flags;
keep_next_list = TRUE;
zero_width_next_list = TRUE;
/* Add the index to a list, so that we can check
* later that we don't match it again (and cause an
* endless loop). */
if (ga_grow(&zero_width_next_ga, 1) == OK)
{
((int *)(zero_width_next_ga.ga_data))
[zero_width_next_ga.ga_len++] = next_match_idx;
}
next_match_idx = -1;
}
else
cur_si = push_next_match(cur_si);
found_match = TRUE;
}
}
}
/*
* Handle searching for nextgroup match.
*/
if (current_next_list != NULL && !keep_next_list)
{
/*
* If a nextgroup was not found, continue looking for one if:
* - this is an empty line and the "skipempty" option was given
* - we are on white space and the "skipwhite" option was given
*/
if (!found_match)
{
line = syn_getcurline();
if (((current_next_flags & HL_SKIPWHITE)
&& vim_iswhite(line[current_col]))
|| ((current_next_flags & HL_SKIPEMPTY)
&& *line == NUL))
break;
}
/*
* If a nextgroup was found: Use it, and continue looking for
* contained matches.
* If a nextgroup was not found: Continue looking for a normal
* match.
* When did set current_next_list for a zero-width item and no
* match was found don't loop (would get stuck).
*/
current_next_list = NULL;
next_match_idx = -1;
if (!zero_width_next_list)
found_match = TRUE;
}
} while (found_match);
/*
* Use attributes from the current state, if within its highlighting.
* If not, use attributes from the current-but-one state, etc.
*/
current_attr = 0;
#ifdef FEAT_EVAL
current_id = 0;
current_trans_id = 0;
#endif
if (cur_si != NULL)
{
#ifndef FEAT_EVAL
int current_trans_id = 0;
#endif
for (idx = current_state.ga_len - 1; idx >= 0; --idx)
{
sip = &CUR_STATE(idx);
if ((current_lnum > sip->si_h_startpos.lnum
|| (current_lnum == sip->si_h_startpos.lnum
&& current_col >= sip->si_h_startpos.col))
&& (sip->si_h_endpos.lnum == 0
|| current_lnum < sip->si_h_endpos.lnum
|| (current_lnum == sip->si_h_endpos.lnum
&& current_col < sip->si_h_endpos.col)))
{
current_attr = sip->si_attr;
#ifdef FEAT_EVAL
current_id = sip->si_id;
#endif
current_trans_id = sip->si_trans_id;
break;
}
}
if (can_spell != NULL)
{
struct sp_syn sps;
/*
* set "can_spell" to TRUE if spell checking is supposed to be
* done in the current item.
*/
if (syn_buf->b_spell_cluster_id == 0)
{
/* There is no @Spell cluster: Do spelling for items without
* @NoSpell cluster. */
if (syn_buf->b_nospell_cluster_id == 0 || current_trans_id == 0)
*can_spell = (syn_buf->b_syn_spell != SYNSPL_NOTOP);
else
{
sps.inc_tag = 0;
sps.id = syn_buf->b_nospell_cluster_id;
sps.cont_in_list = NULL;
*can_spell = !in_id_list(sip, sip->si_cont_list, &sps, 0);
}
}
else
{
/* The @Spell cluster is defined: Do spelling in items with
* the @Spell cluster. But not when @NoSpell is also there.
* At the toplevel only spell check when ":syn spell toplevel"
* was used. */
if (current_trans_id == 0)
*can_spell = (syn_buf->b_syn_spell == SYNSPL_TOP);
else
{
sps.inc_tag = 0;
sps.id = syn_buf->b_spell_cluster_id;
sps.cont_in_list = NULL;
*can_spell = in_id_list(sip, sip->si_cont_list, &sps, 0);
if (syn_buf->b_nospell_cluster_id != 0)
{
sps.id = syn_buf->b_nospell_cluster_id;
if (in_id_list(sip, sip->si_cont_list, &sps, 0))
*can_spell = FALSE;
}
}
}
}
/*
* Check for end of current state (and the states before it) at the
* next column. Don't do this for syncing, because we would miss a
* single character match.
* First check if the current state ends at the current column. It
* may be for an empty match and a containing item might end in the
* current column.
*/
if (!syncing)
{
check_state_ends();
if (current_state.ga_len > 0
&& syn_getcurline()[current_col] != NUL)
{
++current_col;
check_state_ends();
--current_col;
}
}
}
else if (can_spell != NULL)
/* Default: Only do spelling when there is no @Spell cluster or when
* ":syn spell toplevel" was used. */
*can_spell = syn_buf->b_syn_spell == SYNSPL_DEFAULT
? (syn_buf->b_spell_cluster_id == 0)
: (syn_buf->b_syn_spell == SYNSPL_TOP);
/* nextgroup ends at end of line, unless "skipnl" or "skipemtpy" present */
if (current_next_list != NULL
&& syn_getcurline()[current_col + 1] == NUL
&& !(current_next_flags & (HL_SKIPNL | HL_SKIPEMPTY)))
current_next_list = NULL;
if (zero_width_next_ga.ga_len > 0)
ga_clear(&zero_width_next_ga);
/* No longer need external matches. But keep next_match_extmatch. */
unref_extmatch(re_extmatch_out);
re_extmatch_out = NULL;
unref_extmatch(cur_extmatch);
return current_attr;
}
/*
* Check if we already matched pattern "idx" at the current column.
*/
static int
did_match_already(idx, gap)
int idx;
garray_T *gap;
{
int i;
for (i = current_state.ga_len; --i >= 0; )
if (CUR_STATE(i).si_m_startcol == (int)current_col
&& CUR_STATE(i).si_m_lnum == (int)current_lnum
&& CUR_STATE(i).si_idx == idx)
return TRUE;
/* Zero-width matches with a nextgroup argument are not put on the syntax
* stack, and can only be matched once anyway. */
for (i = gap->ga_len; --i >= 0; )
if (((int *)(gap->ga_data))[i] == idx)
return TRUE;
return FALSE;
}
/*
* Push the next match onto the stack.
*/
static stateitem_T *
push_next_match(cur_si)
stateitem_T *cur_si;
{
synpat_T *spp;
spp = &(SYN_ITEMS(syn_buf)[next_match_idx]);
/*
* Push the item in current_state stack;
*/
if (push_current_state(next_match_idx) == OK)
{
/*
* If it's a start-skip-end type that crosses lines, figure out how
* much it continues in this line. Otherwise just fill in the length.
*/
cur_si = &CUR_STATE(current_state.ga_len - 1);
cur_si->si_h_startpos = next_match_h_startpos;
cur_si->si_m_startcol = current_col;
cur_si->si_m_lnum = current_lnum;
cur_si->si_flags = spp->sp_flags;
cur_si->si_next_list = spp->sp_next_list;
cur_si->si_extmatch = ref_extmatch(next_match_extmatch);
if (spp->sp_type == SPTYPE_START && !(spp->sp_flags & HL_ONELINE))
{
/* Try to find the end pattern in the current line */
update_si_end(cur_si, (int)(next_match_m_endpos.col), TRUE);
check_keepend();
}
else
{
cur_si->si_m_endpos = next_match_m_endpos;
cur_si->si_h_endpos = next_match_h_endpos;
cur_si->si_ends = TRUE;
cur_si->si_flags |= next_match_flags;
cur_si->si_eoe_pos = next_match_eoe_pos;
cur_si->si_end_idx = next_match_end_idx;
}
if (keepend_level < 0 && (cur_si->si_flags & HL_KEEPEND))
keepend_level = current_state.ga_len - 1;
check_keepend();
update_si_attr(current_state.ga_len - 1);
/*
* If the start pattern has another highlight group, push another item
* on the stack for the start pattern.
*/
if ( spp->sp_type == SPTYPE_START
&& spp->sp_syn_match_id != 0
&& push_current_state(next_match_idx) == OK)
{
cur_si = &CUR_STATE(current_state.ga_len - 1);
cur_si->si_h_startpos = next_match_h_startpos;
cur_si->si_m_startcol = current_col;
cur_si->si_m_lnum = current_lnum;
cur_si->si_m_endpos = next_match_eos_pos;
cur_si->si_h_endpos = next_match_eos_pos;
cur_si->si_ends = TRUE;
cur_si->si_end_idx = 0;
cur_si->si_flags = HL_MATCH;
cur_si->si_next_list = NULL;
check_keepend();
update_si_attr(current_state.ga_len - 1);
}
}
next_match_idx = -1; /* try other match next time */
return cur_si;
}
/*
* Check for end of current state (and the states before it).
*/
static void
check_state_ends()
{
stateitem_T *cur_si;
int had_extend = FALSE;
cur_si = &CUR_STATE(current_state.ga_len - 1);
for (;;)
{
if (cur_si->si_ends
&& (cur_si->si_m_endpos.lnum < current_lnum
|| (cur_si->si_m_endpos.lnum == current_lnum
&& cur_si->si_m_endpos.col <= current_col)))
{
/*
* If there is an end pattern group ID, highlight the end pattern
* now. No need to pop the current item from the stack.
* Only do this if the end pattern continues beyond the current
* position.
*/
if (cur_si->si_end_idx
&& (cur_si->si_eoe_pos.lnum > current_lnum
|| (cur_si->si_eoe_pos.lnum == current_lnum
&& cur_si->si_eoe_pos.col > current_col)))
{
cur_si->si_idx = cur_si->si_end_idx;
cur_si->si_end_idx = 0;
cur_si->si_m_endpos = cur_si->si_eoe_pos;
cur_si->si_h_endpos = cur_si->si_eoe_pos;
cur_si->si_flags |= HL_MATCH;
update_si_attr(current_state.ga_len - 1);
/* what matches next may be different now, clear it */
next_match_idx = 0;
next_match_col = MAXCOL;
break;
}
else
{
/* handle next_list, unless at end of line and no "skipnl" or
* "skipempty" */
current_next_list = cur_si->si_next_list;
current_next_flags = cur_si->si_flags;
if (!(current_next_flags & (HL_SKIPNL | HL_SKIPEMPTY))
&& syn_getcurline()[current_col] == NUL)
current_next_list = NULL;
/* When the ended item has "extend", another item with
* "keepend" now needs to check for its end. */
if (cur_si->si_flags & HL_EXTEND)
had_extend = TRUE;
pop_current_state();
if (current_state.ga_len == 0)
break;
if (had_extend)
{
syn_update_ends(FALSE);
if (current_state.ga_len == 0)
break;
}
cur_si = &CUR_STATE(current_state.ga_len - 1);
/*
* Only for a region the search for the end continues after
* the end of the contained item. If the contained match
* included the end-of-line, break here, the region continues.
* Don't do this when:
* - "keepend" is used for the contained item
* - not at the end of the line (could be end="x$"me=e-1).
* - "excludenl" is used (HL_HAS_EOL won't be set)
*/
if (cur_si->si_idx >= 0
&& SYN_ITEMS(syn_buf)[cur_si->si_idx].sp_type
== SPTYPE_START
&& !(cur_si->si_flags & (HL_MATCH | HL_KEEPEND)))
{
update_si_end(cur_si, (int)current_col, TRUE);
check_keepend();
if ((current_next_flags & HL_HAS_EOL)
&& keepend_level < 0
&& syn_getcurline()[current_col] == NUL)
break;
}
}
}
else
break;
}
}
/*
* Update an entry in the current_state stack for a match or region. This
* fills in si_attr, si_next_list and si_cont_list.
*/
static void
update_si_attr(idx)
int idx;
{
stateitem_T *sip = &CUR_STATE(idx);
synpat_T *spp;
spp = &(SYN_ITEMS(syn_buf)[sip->si_idx]);
if (sip->si_flags & HL_MATCH)
sip->si_id = spp->sp_syn_match_id;
else
sip->si_id = spp->sp_syn.id;
sip->si_attr = syn_id2attr(sip->si_id);
sip->si_trans_id = sip->si_id;
if (sip->si_flags & HL_MATCH)
sip->si_cont_list = NULL;
else
sip->si_cont_list = spp->sp_cont_list;
/*
* For transparent items, take attr from outer item.
* Also take cont_list, if there is none.
* Don't do this for the matchgroup of a start or end pattern.
*/
if ((spp->sp_flags & HL_TRANSP) && !(sip->si_flags & HL_MATCH))
{
if (idx == 0)
{
sip->si_attr = 0;
sip->si_trans_id = 0;
if (sip->si_cont_list == NULL)
sip->si_cont_list = ID_LIST_ALL;
}
else
{
sip->si_attr = CUR_STATE(idx - 1).si_attr;
sip->si_trans_id = CUR_STATE(idx - 1).si_trans_id;
sip->si_h_startpos = CUR_STATE(idx - 1).si_h_startpos;
sip->si_h_endpos = CUR_STATE(idx - 1).si_h_endpos;
if (sip->si_cont_list == NULL)
{
sip->si_flags |= HL_TRANS_CONT;
sip->si_cont_list = CUR_STATE(idx - 1).si_cont_list;
}
}
}
}
/*
* Check the current stack for patterns with "keepend" flag.
* Propagate the match-end to contained items, until a "skipend" item is found.
*/
static void
check_keepend()
{
int i;
lpos_T maxpos;
lpos_T maxpos_h;
stateitem_T *sip;
/*
* This check can consume a lot of time; only do it from the level where
* there really is a keepend.
*/
if (keepend_level < 0)
return;
/*
* Find the last index of an "extend" item. "keepend" items before that
* won't do anything. If there is no "extend" item "i" will be
* "keepend_level" and all "keepend" items will work normally.
*/
for (i = current_state.ga_len - 1; i > keepend_level; --i)
if (CUR_STATE(i).si_flags & HL_EXTEND)
break;
maxpos.lnum = 0;
maxpos_h.lnum = 0;
for ( ; i < current_state.ga_len; ++i)
{
sip = &CUR_STATE(i);
if (maxpos.lnum != 0)
{
limit_pos_zero(&sip->si_m_endpos, &maxpos);
limit_pos_zero(&sip->si_h_endpos, &maxpos_h);
limit_pos_zero(&sip->si_eoe_pos, &maxpos);
sip->si_ends = TRUE;
}
if (sip->si_ends && (sip->si_flags & HL_KEEPEND))
{
if (maxpos.lnum == 0
|| maxpos.lnum > sip->si_m_endpos.lnum
|| (maxpos.lnum == sip->si_m_endpos.lnum
&& maxpos.col > sip->si_m_endpos.col))
maxpos = sip->si_m_endpos;
if (maxpos_h.lnum == 0
|| maxpos_h.lnum > sip->si_h_endpos.lnum
|| (maxpos_h.lnum == sip->si_h_endpos.lnum
&& maxpos_h.col > sip->si_h_endpos.col))
maxpos_h = sip->si_h_endpos;
}
}
}
/*
* Update an entry in the current_state stack for a start-skip-end pattern.
* This finds the end of the current item, if it's in the current line.
*
* Return the flags for the matched END.
*/
static void
update_si_end(sip, startcol, force)
stateitem_T *sip;
int startcol; /* where to start searching for the end */
int force; /* when TRUE overrule a previous end */
{
lpos_T startpos;
lpos_T endpos;
lpos_T hl_endpos;
lpos_T end_endpos;
int end_idx;
/* Don't update when it's already done. Can be a match of an end pattern
* that started in a previous line. Watch out: can also be a "keepend"
* from a containing item. */
if (!force && sip->si_m_endpos.lnum >= current_lnum)
return;
/*
* We need to find the end of the region. It may continue in the next
* line.
*/
end_idx = 0;
startpos.lnum = current_lnum;
startpos.col = startcol;
find_endpos(sip->si_idx, &startpos, &endpos, &hl_endpos,
&(sip->si_flags), &end_endpos, &end_idx, sip->si_extmatch);
if (endpos.lnum == 0)
{
/* No end pattern matched. */
if (SYN_ITEMS(syn_buf)[sip->si_idx].sp_flags & HL_ONELINE)
{
/* a "oneline" never continues in the next line */
sip->si_ends = TRUE;
sip->si_m_endpos.lnum = current_lnum;
sip->si_m_endpos.col = (colnr_T)STRLEN(syn_getcurline());
}
else
{
/* continues in the next line */
sip->si_ends = FALSE;
sip->si_m_endpos.lnum = 0;
}
sip->si_h_endpos = sip->si_m_endpos;
}
else
{
/* match within this line */
sip->si_m_endpos = endpos;
sip->si_h_endpos = hl_endpos;
sip->si_eoe_pos = end_endpos;
sip->si_ends = TRUE;
sip->si_end_idx = end_idx;
}
}
/*
* Add a new state to the current state stack.
* It is cleared and the index set to "idx".
* Return FAIL if it's not possible (out of memory).
*/
static int
push_current_state(idx)
int idx;
{
if (ga_grow(¤t_state, 1) == FAIL)
return FAIL;
vim_memset(&CUR_STATE(current_state.ga_len), 0, sizeof(stateitem_T));
CUR_STATE(current_state.ga_len).si_idx = idx;
++current_state.ga_len;
return OK;
}
/*
* Remove a state from the current_state stack.
*/
static void
pop_current_state()
{
if (current_state.ga_len)
{
unref_extmatch(CUR_STATE(current_state.ga_len - 1).si_extmatch);
--current_state.ga_len;
}
/* after the end of a pattern, try matching a keyword or pattern */
next_match_idx = -1;
/* if first state with "keepend" is popped, reset keepend_level */
if (keepend_level >= current_state.ga_len)
keepend_level = -1;
}
/*
* Find the end of a start/skip/end syntax region after "startpos".
* Only checks one line.
* Also handles a match item that continued from a previous line.
* If not found, the syntax item continues in the next line. m_endpos->lnum
* will be 0.
* If found, the end of the region and the end of the highlighting is
* computed.
*/
static void
find_endpos(idx, startpos, m_endpos, hl_endpos, flagsp, end_endpos,
end_idx, start_ext)
int idx; /* index of the pattern */
lpos_T *startpos; /* where to start looking for an END match */
lpos_T *m_endpos; /* return: end of match */
lpos_T *hl_endpos; /* return: end of highlighting */
long *flagsp; /* return: flags of matching END */
lpos_T *end_endpos; /* return: end of end pattern match */
int *end_idx; /* return: group ID for end pat. match, or 0 */
reg_extmatch_T *start_ext; /* submatches from the start pattern */
{
colnr_T matchcol;
synpat_T *spp, *spp_skip;
int start_idx;
int best_idx;
regmmatch_T regmatch;
regmmatch_T best_regmatch; /* startpos/endpos of best match */
lpos_T pos;
char_u *line;
int had_match = FALSE;
/*
* Check for being called with a START pattern.
* Can happen with a match that continues to the next line, because it
* contained a region.
*/
spp = &(SYN_ITEMS(syn_buf)[idx]);
if (spp->sp_type != SPTYPE_START)
{
*hl_endpos = *startpos;
return;
}
/*
* Find the SKIP or first END pattern after the last START pattern.
*/
for (;;)
{
spp = &(SYN_ITEMS(syn_buf)[idx]);
if (spp->sp_type != SPTYPE_START)
break;
++idx;
}
/*
* Lookup the SKIP pattern (if present)
*/
if (spp->sp_type == SPTYPE_SKIP)
{
spp_skip = spp;
++idx;
}
else
spp_skip = NULL;
/* Setup external matches for syn_regexec(). */
unref_extmatch(re_extmatch_in);
re_extmatch_in = ref_extmatch(start_ext);
matchcol = startpos->col; /* start looking for a match at sstart */
start_idx = idx; /* remember the first END pattern. */
best_regmatch.startpos[0].col = 0; /* avoid compiler warning */
for (;;)
{
/*
* Find end pattern that matches first after "matchcol".
*/
best_idx = -1;
for (idx = start_idx; idx < syn_buf->b_syn_patterns.ga_len; ++idx)
{
int lc_col = matchcol;
spp = &(SYN_ITEMS(syn_buf)[idx]);
if (spp->sp_type != SPTYPE_END) /* past last END pattern */
break;
lc_col -= spp->sp_offsets[SPO_LC_OFF];
if (lc_col < 0)
lc_col = 0;
regmatch.rmm_ic = spp->sp_ic;
regmatch.regprog = spp->sp_prog;
if (syn_regexec(®match, startpos->lnum, lc_col))
{
if (best_idx == -1 || regmatch.startpos[0].col
< best_regmatch.startpos[0].col)
{
best_idx = idx;
best_regmatch.startpos[0] = regmatch.startpos[0];
best_regmatch.endpos[0] = regmatch.endpos[0];
}
}
}
/*
* If all end patterns have been tried, and there is no match, the
* item continues until end-of-line.
*/
if (best_idx == -1)
break;
/*
* If the skip pattern matches before the end pattern,
* continue searching after the skip pattern.
*/
if (spp_skip != NULL)
{
int lc_col = matchcol - spp_skip->sp_offsets[SPO_LC_OFF];
if (lc_col < 0)
lc_col = 0;
regmatch.rmm_ic = spp_skip->sp_ic;
regmatch.regprog = spp_skip->sp_prog;
if (syn_regexec(®match, startpos->lnum, lc_col)
&& regmatch.startpos[0].col
<= best_regmatch.startpos[0].col)
{
/* Add offset to skip pattern match */
syn_add_end_off(&pos, ®match, spp_skip, SPO_ME_OFF, 1);
/* If the skip pattern goes on to the next line, there is no
* match with an end pattern in this line. */
if (pos.lnum > startpos->lnum)
break;
line = ml_get_buf(syn_buf, startpos->lnum, FALSE);
/* take care of an empty match or negative offset */
if (pos.col <= matchcol)
++matchcol;
else if (pos.col <= regmatch.endpos[0].col)
matchcol = pos.col;
else
/* Be careful not to jump over the NUL at the end-of-line */
for (matchcol = regmatch.endpos[0].col;
line[matchcol] != NUL && matchcol < pos.col;
++matchcol)
;
/* if the skip pattern includes end-of-line, break here */
if (line[matchcol] == NUL)
break;
continue; /* start with first end pattern again */
}
}
/*
* Match from start pattern to end pattern.
* Correct for match and highlight offset of end pattern.
*/
spp = &(SYN_ITEMS(syn_buf)[best_idx]);
syn_add_end_off(m_endpos, &best_regmatch, spp, SPO_ME_OFF, 1);
/* can't end before the start */
if (m_endpos->lnum == startpos->lnum && m_endpos->col < startpos->col)
m_endpos->col = startpos->col;
syn_add_end_off(end_endpos, &best_regmatch, spp, SPO_HE_OFF, 1);
/* can't end before the start */
if (end_endpos->lnum == startpos->lnum
&& end_endpos->col < startpos->col)
end_endpos->col = startpos->col;
/* can't end after the match */
limit_pos(end_endpos, m_endpos);
/*
* If the end group is highlighted differently, adjust the pointers.
*/
if (spp->sp_syn_match_id != spp->sp_syn.id && spp->sp_syn_match_id != 0)
{
*end_idx = best_idx;
if (spp->sp_off_flags & (1 << (SPO_RE_OFF + SPO_COUNT)))
{
hl_endpos->lnum = best_regmatch.endpos[0].lnum;
hl_endpos->col = best_regmatch.endpos[0].col;
}
else
{
hl_endpos->lnum = best_regmatch.startpos[0].lnum;
hl_endpos->col = best_regmatch.startpos[0].col;
}
hl_endpos->col += spp->sp_offsets[SPO_RE_OFF];
/* can't end before the start */
if (hl_endpos->lnum == startpos->lnum
&& hl_endpos->col < startpos->col)
hl_endpos->col = startpos->col;
limit_pos(hl_endpos, m_endpos);
/* now the match ends where the highlighting ends, it is turned
* into the matchgroup for the end */
*m_endpos = *hl_endpos;
}
else
{
*end_idx = 0;
*hl_endpos = *end_endpos;
}
*flagsp = spp->sp_flags;
had_match = TRUE;
break;
}
/* no match for an END pattern in this line */
if (!had_match)
m_endpos->lnum = 0;
/* Remove external matches. */
unref_extmatch(re_extmatch_in);
re_extmatch_in = NULL;
}
/*
* Limit "pos" not to be after "limit".
*/
static void
limit_pos(pos, limit)
lpos_T *pos;
lpos_T *limit;
{
if (pos->lnum > limit->lnum)
*pos = *limit;
else if (pos->lnum == limit->lnum && pos->col > limit->col)
pos->col = limit->col;
}
/*
* Limit "pos" not to be after "limit", unless pos->lnum is zero.
*/
static void
limit_pos_zero(pos, limit)
lpos_T *pos;
lpos_T *limit;
{
if (pos->lnum == 0)
*pos = *limit;
else
limit_pos(pos, limit);
}
/*
* Add offset to matched text for end of match or highlight.
*/
static void
syn_add_end_off(result, regmatch, spp, idx, extra)
lpos_T *result; /* returned position */
regmmatch_T *regmatch; /* start/end of match */
synpat_T *spp; /* matched pattern */
int idx; /* index of offset */
int extra; /* extra chars for offset to start */
{
int col;
int len;
if (spp->sp_off_flags & (1 << idx))
{
result->lnum = regmatch->startpos[0].lnum;
col = regmatch->startpos[0].col + extra;
}
else
{
result->lnum = regmatch->endpos[0].lnum;
col = regmatch->endpos[0].col;
}
col += spp->sp_offsets[idx];
if (col < 0)
result->col = 0;
else
{
/* Don't go past the end of the line. Matters for "rs=e+2" when there
* is a matchgroup. Watch out for match with last NL in the buffer. */
if (result->lnum > syn_buf->b_ml.ml_line_count)
len = 0;
else
len = (int)STRLEN(ml_get_buf(syn_buf, result->lnum, FALSE));
if (col > len)
result->col = len;
else
result->col = col;
}
}
/*
* Add offset to matched text for start of match or highlight.
* Avoid resulting column to become negative.
*/
static void
syn_add_start_off(result, regmatch, spp, idx, extra)
lpos_T *result; /* returned position */
regmmatch_T *regmatch; /* start/end of match */
synpat_T *spp;
int idx;
int extra; /* extra chars for offset to end */
{
int col;
if (spp->sp_off_flags & (1 << (idx + SPO_COUNT)))
{
result->lnum = regmatch->endpos[0].lnum;
col = regmatch->endpos[0].col + extra;
}
else
{
result->lnum = regmatch->startpos[0].lnum;
col = regmatch->startpos[0].col;
}
col += spp->sp_offsets[idx];
if (col < 0)
result->col = 0;
else
result->col = col;
}
/*
* Get current line in syntax buffer.
*/
static char_u *
syn_getcurline()
{
return ml_get_buf(syn_buf, current_lnum, FALSE);
}
/*
* Call vim_regexec() to find a match with "rmp" in "syn_buf".
* Returns TRUE when there is a match.
*/
static int
syn_regexec(rmp, lnum, col)
regmmatch_T *rmp;
linenr_T lnum;
colnr_T col;
{
rmp->rmm_maxcol = syn_buf->b_p_smc;
if (vim_regexec_multi(rmp, syn_win, syn_buf, lnum, col) > 0)
{
rmp->startpos[0].lnum += lnum;
rmp->endpos[0].lnum += lnum;
return TRUE;
}
return FALSE;
}
/*
* Check one position in a line for a matching keyword.
* The caller must check if a keyword can start at startcol.
* Return it's ID if found, 0 otherwise.
*/
static int
check_keyword_id(line, startcol, endcolp, flagsp, next_listp, cur_si)
char_u *line;
int startcol; /* position in line to check for keyword */
int *endcolp; /* return: character after found keyword */
long *flagsp; /* return: flags of matching keyword */
short **next_listp; /* return: next_list of matching keyword */
stateitem_T *cur_si; /* item at the top of the stack */
{
keyentry_T *kp;
char_u *kwp;
int round;
int kwlen;
char_u keyword[MAXKEYWLEN + 1]; /* assume max. keyword len is 80 */
hashtab_T *ht;
hashitem_T *hi;
/* Find first character after the keyword. First character was already
* checked. */
kwp = line + startcol;
kwlen = 0;
do
{
#ifdef FEAT_MBYTE
if (has_mbyte)
kwlen += (*mb_ptr2len)(kwp + kwlen);
else
#endif
++kwlen;
}
while (vim_iswordc_buf(kwp + kwlen, syn_buf));
if (kwlen > MAXKEYWLEN)
return 0;
/*
* Must make a copy of the keyword, so we can add a NUL and make it
* lowercase.
*/
vim_strncpy(keyword, kwp, kwlen);
/*
* Try twice:
* 1. matching case
* 2. ignoring case
*/
for (round = 1; round <= 2; ++round)
{
ht = round == 1 ? &syn_buf->b_keywtab : &syn_buf->b_keywtab_ic;
if (ht->ht_used == 0)
continue;
if (round == 2) /* ignore case */
(void)str_foldcase(kwp, kwlen, keyword, MAXKEYWLEN + 1);
/*
* Find keywords that match. There can be several with different
* attributes.
* When current_next_list is non-zero accept only that group, otherwise:
* Accept a not-contained keyword at toplevel.
* Accept a keyword at other levels only if it is in the contains list.
*/
hi = hash_find(ht, keyword);
if (!HASHITEM_EMPTY(hi))
for (kp = HI2KE(hi); kp != NULL; kp = kp->ke_next)
{
if (current_next_list != 0
? in_id_list(NULL, current_next_list, &kp->k_syn, 0)
: (cur_si == NULL
? !(kp->flags & HL_CONTAINED)
: in_id_list(cur_si, cur_si->si_cont_list,
&kp->k_syn, kp->flags & HL_CONTAINED)))
{
*endcolp = startcol + kwlen;
*flagsp = kp->flags;
*next_listp = kp->next_list;
return kp->k_syn.id;
}
}
}
return 0;
}
/*
* Handle ":syntax case" command.
*/
/* ARGSUSED */
static void
syn_cmd_case(eap, syncing)
exarg_T *eap;
int syncing; /* not used */
{
char_u *arg = eap->arg;
char_u *next;
eap->nextcmd = find_nextcmd(arg);
if (eap->skip)
return;
next = skiptowhite(arg);
if (STRNICMP(arg, "match", 5) == 0 && next - arg == 5)
curbuf->b_syn_ic = FALSE;
else if (STRNICMP(arg, "ignore", 6) == 0 && next - arg == 6)
curbuf->b_syn_ic = TRUE;
else
EMSG2(_("E390: Illegal argument: %s"), arg);
}
/*
* Handle ":syntax spell" command.
*/
/* ARGSUSED */
static void
syn_cmd_spell(eap, syncing)
exarg_T *eap;
int syncing; /* not used */
{
char_u *arg = eap->arg;
char_u *next;
eap->nextcmd = find_nextcmd(arg);
if (eap->skip)
return;
next = skiptowhite(arg);
if (STRNICMP(arg, "toplevel", 8) == 0 && next - arg == 8)
curbuf->b_syn_spell = SYNSPL_TOP;
else if (STRNICMP(arg, "notoplevel", 10) == 0 && next - arg == 10)
curbuf->b_syn_spell = SYNSPL_NOTOP;
else if (STRNICMP(arg, "default", 7) == 0 && next - arg == 7)
curbuf->b_syn_spell = SYNSPL_DEFAULT;
else
EMSG2(_("E390: Illegal argument: %s"), arg);
}
/*
* Clear all syntax info for one buffer.
*/
void
syntax_clear(buf)
buf_T *buf;
{
int i;
buf->b_syn_error = FALSE; /* clear previous error */
buf->b_syn_ic = FALSE; /* Use case, by default */
buf->b_syn_spell = SYNSPL_DEFAULT; /* default spell checking */
buf->b_syn_containedin = FALSE;
/* free the keywords */
clear_keywtab(&buf->b_keywtab);
clear_keywtab(&buf->b_keywtab_ic);
/* free the syntax patterns */
for (i = buf->b_syn_patterns.ga_len; --i >= 0; )
syn_clear_pattern(buf, i);
ga_clear(&buf->b_syn_patterns);
/* free the syntax clusters */
for (i = buf->b_syn_clusters.ga_len; --i >= 0; )
syn_clear_cluster(buf, i);
ga_clear(&buf->b_syn_clusters);
buf->b_spell_cluster_id = 0;
buf->b_nospell_cluster_id = 0;
buf->b_syn_sync_flags = 0;
buf->b_syn_sync_minlines = 0;
buf->b_syn_sync_maxlines = 0;
buf->b_syn_sync_linebreaks = 0;
vim_free(buf->b_syn_linecont_prog);
buf->b_syn_linecont_prog = NULL;
vim_free(buf->b_syn_linecont_pat);
buf->b_syn_linecont_pat = NULL;
#ifdef FEAT_FOLDING
buf->b_syn_folditems = 0;
#endif
/* free the stored states */
syn_stack_free_all(buf);
invalidate_current_state();
}
/*
* Clear syncing info for one buffer.
*/
static void
syntax_sync_clear()
{
int i;
/* free the syntax patterns */
for (i = curbuf->b_syn_patterns.ga_len; --i >= 0; )
if (SYN_ITEMS(curbuf)[i].sp_syncing)
syn_remove_pattern(curbuf, i);
curbuf->b_syn_sync_flags = 0;
curbuf->b_syn_sync_minlines = 0;
curbuf->b_syn_sync_maxlines = 0;
curbuf->b_syn_sync_linebreaks = 0;
vim_free(curbuf->b_syn_linecont_prog);
curbuf->b_syn_linecont_prog = NULL;
vim_free(curbuf->b_syn_linecont_pat);
curbuf->b_syn_linecont_pat = NULL;
syn_stack_free_all(curbuf); /* Need to recompute all syntax. */
}
/*
* Remove one pattern from the buffer's pattern list.
*/
static void
syn_remove_pattern(buf, idx)
buf_T *buf;
int idx;
{
synpat_T *spp;
spp = &(SYN_ITEMS(buf)[idx]);
#ifdef FEAT_FOLDING
if (spp->sp_flags & HL_FOLD)
--buf->b_syn_folditems;
#endif
syn_clear_pattern(buf, idx);
mch_memmove(spp, spp + 1,
sizeof(synpat_T) * (buf->b_syn_patterns.ga_len - idx - 1));
--buf->b_syn_patterns.ga_len;
}
/*
* Clear and free one syntax pattern. When clearing all, must be called from
* last to first!
*/
static void
syn_clear_pattern(buf, i)
buf_T *buf;
int i;
{
vim_free(SYN_ITEMS(buf)[i].sp_pattern);
vim_free(SYN_ITEMS(buf)[i].sp_prog);
/* Only free sp_cont_list and sp_next_list of first start pattern */
if (i == 0 || SYN_ITEMS(buf)[i - 1].sp_type != SPTYPE_START)
{
vim_free(SYN_ITEMS(buf)[i].sp_cont_list);
vim_free(SYN_ITEMS(buf)[i].sp_next_list);
}
}
/*
* Clear and free one syntax cluster.
*/
static void
syn_clear_cluster(buf, i)
buf_T *buf;
int i;
{
vim_free(SYN_CLSTR(buf)[i].scl_name);
vim_free(SYN_CLSTR(buf)[i].scl_name_u);
vim_free(SYN_CLSTR(buf)[i].scl_list);
}
/*
* Handle ":syntax clear" command.
*/
static void
syn_cmd_clear(eap, syncing)
exarg_T *eap;
int syncing;
{
char_u *arg = eap->arg;
char_u *arg_end;
int id;
eap->nextcmd = find_nextcmd(arg);
if (eap->skip)
return;
/*
* We have to disable this within ":syn include @group filename",
* because otherwise @group would get deleted.
* Only required for Vim 5.x syntax files, 6.0 ones don't contain ":syn
* clear".
*/
if (curbuf->b_syn_topgrp != 0)
return;
if (ends_excmd(*arg))
{
/*
* No argument: Clear all syntax items.
*/
if (syncing)
syntax_sync_clear();
else
{
syntax_clear(curbuf);
do_unlet((char_u *)"b:current_syntax", TRUE);
}
}
else
{
/*
* Clear the group IDs that are in the argument.
*/
while (!ends_excmd(*arg))
{
arg_end = skiptowhite(arg);
if (*arg == '@')
{
id = syn_scl_namen2id(arg + 1, (int)(arg_end - arg - 1));
if (id == 0)
{
EMSG2(_("E391: No such syntax cluster: %s"), arg);
break;
}
else
{
/*
* We can't physically delete a cluster without changing
* the IDs of other clusters, so we do the next best thing
* and make it empty.
*/
short scl_id = id - SYNID_CLUSTER;
vim_free(SYN_CLSTR(curbuf)[scl_id].scl_list);
SYN_CLSTR(curbuf)[scl_id].scl_list = NULL;
}
}
else
{
id = syn_namen2id(arg, (int)(arg_end - arg));
if (id == 0)
{
EMSG2(_(e_nogroup), arg);
break;
}
else
syn_clear_one(id, syncing);
}
arg = skipwhite(arg_end);
}
}
redraw_curbuf_later(SOME_VALID);
syn_stack_free_all(curbuf); /* Need to recompute all syntax. */
}
/*
* Clear one syntax group for the current buffer.
*/
static void
syn_clear_one(id, syncing)
int id;
int syncing;
{
synpat_T *spp;
int idx;
/* Clear keywords only when not ":syn sync clear group-name" */
if (!syncing)
{
(void)syn_clear_keyword(id, &curbuf->b_keywtab);
(void)syn_clear_keyword(id, &curbuf->b_keywtab_ic);
}
/* clear the patterns for "id" */
for (idx = curbuf->b_syn_patterns.ga_len; --idx >= 0; )
{
spp = &(SYN_ITEMS(curbuf)[idx]);
if (spp->sp_syn.id != id || spp->sp_syncing != syncing)
continue;
syn_remove_pattern(curbuf, idx);
}
}
/*
* Handle ":syntax on" command.
*/
/* ARGSUSED */
static void
syn_cmd_on(eap, syncing)
exarg_T *eap;
int syncing; /* not used */
{
syn_cmd_onoff(eap, "syntax");
}
/*
* Handle ":syntax enable" command.
*/
/* ARGSUSED */
static void
syn_cmd_enable(eap, syncing)
exarg_T *eap;
int syncing; /* not used */
{
set_internal_string_var((char_u *)"syntax_cmd", (char_u *)"enable");
syn_cmd_onoff(eap, "syntax");
do_unlet((char_u *)"g:syntax_cmd", TRUE);
}
/*
* Handle ":syntax reset" command.
*/
/* ARGSUSED */
static void
syn_cmd_reset(eap, syncing)
exarg_T *eap;
int syncing; /* not used */
{
eap->nextcmd = check_nextcmd(eap->arg);
if (!eap->skip)
{
set_internal_string_var((char_u *)"syntax_cmd", (char_u *)"reset");
do_cmdline_cmd((char_u *)"runtime! syntax/syncolor.vim");
do_unlet((char_u *)"g:syntax_cmd", TRUE);
}
}
/*
* Handle ":syntax manual" command.
*/
/* ARGSUSED */
static void
syn_cmd_manual(eap, syncing)
exarg_T *eap;
int syncing; /* not used */
{
syn_cmd_onoff(eap, "manual");
}
/*
* Handle ":syntax off" command.
*/
/* ARGSUSED */
static void
syn_cmd_off(eap, syncing)
exarg_T *eap;
int syncing; /* not used */
{
syn_cmd_onoff(eap, "nosyntax");
}
static void
syn_cmd_onoff(eap, name)
exarg_T *eap;
char *name;
{
char_u buf[100];
eap->nextcmd = check_nextcmd(eap->arg);
if (!eap->skip)
{
STRCPY(buf, "so ");
vim_snprintf((char *)buf + 3, sizeof(buf) - 3, SYNTAX_FNAME, name);
do_cmdline_cmd(buf);
}
}
/*
* Handle ":syntax [list]" command: list current syntax words.
*/
static void
syn_cmd_list(eap, syncing)
exarg_T *eap;
int syncing; /* when TRUE: list syncing items */
{
char_u *arg = eap->arg;
int id;
char_u *arg_end;
eap->nextcmd = find_nextcmd(arg);
if (eap->skip)
return;
if (!syntax_present(curbuf))
{
MSG(_("No Syntax items defined for this buffer"));
return;
}
if (syncing)
{
if (curbuf->b_syn_sync_flags & SF_CCOMMENT)
{
MSG_PUTS(_("syncing on C-style comments"));
syn_lines_msg();
syn_match_msg();
return;
}
else if (!(curbuf->b_syn_sync_flags & SF_MATCH))
{
if (curbuf->b_syn_sync_minlines == 0)
MSG_PUTS(_("no syncing"));
else
{
MSG_PUTS(_("syncing starts "));
msg_outnum(curbuf->b_syn_sync_minlines);
MSG_PUTS(_(" lines before top line"));
syn_match_msg();
}
return;
}
MSG_PUTS_TITLE(_("\n--- Syntax sync items ---"));
if (curbuf->b_syn_sync_minlines > 0
|| curbuf->b_syn_sync_maxlines > 0
|| curbuf->b_syn_sync_linebreaks > 0)
{
MSG_PUTS(_("\nsyncing on items"));
syn_lines_msg();
syn_match_msg();
}
}
else
MSG_PUTS_TITLE(_("\n--- Syntax items ---"));
if (ends_excmd(*arg))
{
/*
* No argument: List all group IDs and all syntax clusters.
*/
for (id = 1; id <= highlight_ga.ga_len && !got_int; ++id)
syn_list_one(id, syncing, FALSE);
for (id = 0; id < curbuf->b_syn_clusters.ga_len && !got_int; ++id)
syn_list_cluster(id);
}
else
{
/*
* List the group IDs and syntax clusters that are in the argument.
*/
while (!ends_excmd(*arg) && !got_int)
{
arg_end = skiptowhite(arg);
if (*arg == '@')
{
id = syn_scl_namen2id(arg + 1, (int)(arg_end - arg - 1));
if (id == 0)
EMSG2(_("E392: No such syntax cluster: %s"), arg);
else
syn_list_cluster(id - SYNID_CLUSTER);
}
else
{
id = syn_namen2id(arg, (int)(arg_end - arg));
if (id == 0)
EMSG2(_(e_nogroup), arg);
else
syn_list_one(id, syncing, TRUE);
}
arg = skipwhite(arg_end);
}
}
eap->nextcmd = check_nextcmd(arg);
}
static void
syn_lines_msg()
{
if (curbuf->b_syn_sync_maxlines > 0 || curbuf->b_syn_sync_minlines > 0)
{
MSG_PUTS("; ");
if (curbuf->b_syn_sync_minlines > 0)
{
MSG_PUTS(_("minimal "));
msg_outnum(curbuf->b_syn_sync_minlines);
if (curbuf->b_syn_sync_maxlines)
MSG_PUTS(", ");
}
if (curbuf->b_syn_sync_maxlines > 0)
{
MSG_PUTS(_("maximal "));
msg_outnum(curbuf->b_syn_sync_maxlines);
}
MSG_PUTS(_(" lines before top line"));
}
}
static void
syn_match_msg()
{
if (curbuf->b_syn_sync_linebreaks > 0)
{
MSG_PUTS(_("; match "));
msg_outnum(curbuf->b_syn_sync_linebreaks);
MSG_PUTS(_(" line breaks"));
}
}
static int last_matchgroup;
struct name_list
{
int flag;
char *name;
};
static void syn_list_flags __ARGS((struct name_list *nl, int flags, int attr));
/*
* List one syntax item, for ":syntax" or "syntax list syntax_name".
*/
static void
syn_list_one(id, syncing, link_only)
int id;
int syncing; /* when TRUE: list syncing items */
int link_only; /* when TRUE; list link-only too */
{
int attr;
int idx;
int did_header = FALSE;
synpat_T *spp;
static struct name_list namelist1[] =
{
{HL_DISPLAY, "display"},
{HL_CONTAINED, "contained"},
{HL_ONELINE, "oneline"},
{HL_KEEPEND, "keepend"},
{HL_EXTEND, "extend"},
{HL_EXCLUDENL, "excludenl"},
{HL_TRANSP, "transparent"},
{HL_FOLD, "fold"},
{0, NULL}
};
static struct name_list namelist2[] =
{
{HL_SKIPWHITE, "skipwhite"},
{HL_SKIPNL, "skipnl"},
{HL_SKIPEMPTY, "skipempty"},
{0, NULL}
};
attr = hl_attr(HLF_D); /* highlight like directories */
/* list the keywords for "id" */
if (!syncing)
{
did_header = syn_list_keywords(id, &curbuf->b_keywtab, FALSE, attr);
did_header = syn_list_keywords(id, &curbuf->b_keywtab_ic,
did_header, attr);
}
/* list the patterns for "id" */
for (idx = 0; idx < curbuf->b_syn_patterns.ga_len && !got_int; ++idx)
{
spp = &(SYN_ITEMS(curbuf)[idx]);
if (spp->sp_syn.id != id || spp->sp_syncing != syncing)
continue;
(void)syn_list_header(did_header, 999, id);
did_header = TRUE;
last_matchgroup = 0;
if (spp->sp_type == SPTYPE_MATCH)
{
put_pattern("match", ' ', spp, attr);
msg_putchar(' ');
}
else if (spp->sp_type == SPTYPE_START)
{
while (SYN_ITEMS(curbuf)[idx].sp_type == SPTYPE_START)
put_pattern("start", '=', &SYN_ITEMS(curbuf)[idx++], attr);
if (SYN_ITEMS(curbuf)[idx].sp_type == SPTYPE_SKIP)
put_pattern("skip", '=', &SYN_ITEMS(curbuf)[idx++], attr);
while (idx < curbuf->b_syn_patterns.ga_len
&& SYN_ITEMS(curbuf)[idx].sp_type == SPTYPE_END)
put_pattern("end", '=', &SYN_ITEMS(curbuf)[idx++], attr);
--idx;
msg_putchar(' ');
}
syn_list_flags(namelist1, spp->sp_flags, attr);
if (spp->sp_cont_list != NULL)
put_id_list((char_u *)"contains", spp->sp_cont_list, attr);
if (spp->sp_syn.cont_in_list != NULL)
put_id_list((char_u *)"containedin",
spp->sp_syn.cont_in_list, attr);
if (spp->sp_next_list != NULL)
{
put_id_list((char_u *)"nextgroup", spp->sp_next_list, attr);
syn_list_flags(namelist2, spp->sp_flags, attr);
}
if (spp->sp_flags & (HL_SYNC_HERE|HL_SYNC_THERE))
{
if (spp->sp_flags & HL_SYNC_HERE)
msg_puts_attr((char_u *)"grouphere", attr);
else
msg_puts_attr((char_u *)"groupthere", attr);
msg_putchar(' ');
if (spp->sp_sync_idx >= 0)
msg_outtrans(HL_TABLE()[SYN_ITEMS(curbuf)
[spp->sp_sync_idx].sp_syn.id - 1].sg_name);
else
MSG_PUTS("NONE");
msg_putchar(' ');
}
}
/* list the link, if there is one */
if (HL_TABLE()[id - 1].sg_link && (did_header || link_only) && !got_int)
{
(void)syn_list_header(did_header, 999, id);
msg_puts_attr((char_u *)"links to", attr);
msg_putchar(' ');
msg_outtrans(HL_TABLE()[HL_TABLE()[id - 1].sg_link - 1].sg_name);
}
}
static void
syn_list_flags(nl, flags, attr)
struct name_list *nl;
int flags;
int attr;
{
int i;
for (i = 0; nl[i].flag != 0; ++i)
if (flags & nl[i].flag)
{
msg_puts_attr((char_u *)nl[i].name, attr);
msg_putchar(' ');
}
}
/*
* List one syntax cluster, for ":syntax" or "syntax list syntax_name".
*/
static void
syn_list_cluster(id)
int id;
{
int endcol = 15;
/* slight hack: roughly duplicate the guts of syn_list_header() */
msg_putchar('\n');
msg_outtrans(SYN_CLSTR(curbuf)[id].scl_name);
if (msg_col >= endcol) /* output at least one space */
endcol = msg_col + 1;
if (Columns <= endcol) /* avoid hang for tiny window */
endcol = Columns - 1;
msg_advance(endcol);
if (SYN_CLSTR(curbuf)[id].scl_list != NULL)
{
put_id_list((char_u *)"cluster", SYN_CLSTR(curbuf)[id].scl_list,
hl_attr(HLF_D));
}
else
{
msg_puts_attr((char_u *)"cluster", hl_attr(HLF_D));
msg_puts((char_u *)"=NONE");
}
}
static void
put_id_list(name, list, attr)
char_u *name;
short *list;
int attr;
{
short *p;
msg_puts_attr(name, attr);
msg_putchar('=');
for (p = list; *p; ++p)
{
if (*p >= SYNID_ALLBUT && *p < SYNID_TOP)
{
if (p[1])
MSG_PUTS("ALLBUT");
else
MSG_PUTS("ALL");
}
else if (*p >= SYNID_TOP && *p < SYNID_CONTAINED)
{
MSG_PUTS("TOP");
}
else if (*p >= SYNID_CONTAINED && *p < SYNID_CLUSTER)
{
MSG_PUTS("CONTAINED");
}
else if (*p >= SYNID_CLUSTER)
{
short scl_id = *p - SYNID_CLUSTER;
msg_putchar('@');
msg_outtrans(SYN_CLSTR(curbuf)[scl_id].scl_name);
}
else
msg_outtrans(HL_TABLE()[*p - 1].sg_name);
if (p[1])
msg_putchar(',');
}
msg_putchar(' ');
}
static void
put_pattern(s, c, spp, attr)
char *s;
int c;
synpat_T *spp;
int attr;
{
long n;
int mask;
int first;
static char *sepchars = "/+=-#@\"|'^&";
int i;
/* May have to write "matchgroup=group" */
if (last_matchgroup != spp->sp_syn_match_id)
{
last_matchgroup = spp->sp_syn_match_id;
msg_puts_attr((char_u *)"matchgroup", attr);
msg_putchar('=');
if (last_matchgroup == 0)
msg_outtrans((char_u *)"NONE");
else
msg_outtrans(HL_TABLE()[last_matchgroup - 1].sg_name);
msg_putchar(' ');
}
/* output the name of the pattern and an '=' or ' ' */
msg_puts_attr((char_u *)s, attr);
msg_putchar(c);
/* output the pattern, in between a char that is not in the pattern */
for (i = 0; vim_strchr(spp->sp_pattern, sepchars[i]) != NULL; )
if (sepchars[++i] == NUL)
{
i = 0; /* no good char found, just use the first one */
break;
}
msg_putchar(sepchars[i]);
msg_outtrans(spp->sp_pattern);
msg_putchar(sepchars[i]);
/* output any pattern options */
first = TRUE;
for (i = 0; i < SPO_COUNT; ++i)
{
mask = (1 << i);
if (spp->sp_off_flags & (mask + (mask << SPO_COUNT)))
{
if (!first)
msg_putchar(','); /* separate with commas */
msg_puts((char_u *)spo_name_tab[i]);
n = spp->sp_offsets[i];
if (i != SPO_LC_OFF)
{
if (spp->sp_off_flags & mask)
msg_putchar('s');
else
msg_putchar('e');
if (n > 0)
msg_putchar('+');
}
if (n || i == SPO_LC_OFF)
msg_outnum(n);
first = FALSE;
}
}
msg_putchar(' ');
}
/*
* List or clear the keywords for one syntax group.
* Return TRUE if the header has been printed.
*/
static int
syn_list_keywords(id, ht, did_header, attr)
int id;
hashtab_T *ht;
int did_header; /* header has already been printed */
int attr;
{
int outlen;
hashitem_T *hi;
keyentry_T *kp;
int todo;
int prev_contained = 0;
short *prev_next_list = NULL;
short *prev_cont_in_list = NULL;
int prev_skipnl = 0;
int prev_skipwhite = 0;
int prev_skipempty = 0;
/*
* Unfortunately, this list of keywords is not sorted on alphabet but on
* hash value...
*/
todo = (int)ht->ht_used;
for (hi = ht->ht_array; todo > 0 && !got_int; ++hi)
{
if (!HASHITEM_EMPTY(hi))
{
--todo;
for (kp = HI2KE(hi); kp != NULL && !got_int; kp = kp->ke_next)
{
if (kp->k_syn.id == id)
{
if (prev_contained != (kp->flags & HL_CONTAINED)
|| prev_skipnl != (kp->flags & HL_SKIPNL)
|| prev_skipwhite != (kp->flags & HL_SKIPWHITE)
|| prev_skipempty != (kp->flags & HL_SKIPEMPTY)
|| prev_cont_in_list != kp->k_syn.cont_in_list
|| prev_next_list != kp->next_list)
outlen = 9999;
else
outlen = (int)STRLEN(kp->keyword);
/* output "contained" and "nextgroup" on each line */
if (syn_list_header(did_header, outlen, id))
{
prev_contained = 0;
prev_next_list = NULL;
prev_cont_in_list = NULL;
prev_skipnl = 0;
prev_skipwhite = 0;
prev_skipempty = 0;
}
did_header = TRUE;
if (prev_contained != (kp->flags & HL_CONTAINED))
{
msg_puts_attr((char_u *)"contained", attr);
msg_putchar(' ');
prev_contained = (kp->flags & HL_CONTAINED);
}
if (kp->k_syn.cont_in_list != prev_cont_in_list)
{
put_id_list((char_u *)"containedin",
kp->k_syn.cont_in_list, attr);
msg_putchar(' ');
prev_cont_in_list = kp->k_syn.cont_in_list;
}
if (kp->next_list != prev_next_list)
{
put_id_list((char_u *)"nextgroup", kp->next_list, attr);
msg_putchar(' ');
prev_next_list = kp->next_list;
if (kp->flags & HL_SKIPNL)
{
msg_puts_attr((char_u *)"skipnl", attr);
msg_putchar(' ');
prev_skipnl = (kp->flags & HL_SKIPNL);
}
if (kp->flags & HL_SKIPWHITE)
{
msg_puts_attr((char_u *)"skipwhite", attr);
msg_putchar(' ');
prev_skipwhite = (kp->flags & HL_SKIPWHITE);
}
if (kp->flags & HL_SKIPEMPTY)
{
msg_puts_attr((char_u *)"skipempty", attr);
msg_putchar(' ');
prev_skipempty = (kp->flags & HL_SKIPEMPTY);
}
}
msg_outtrans(kp->keyword);
}
}
}
}
return did_header;
}
static void
syn_clear_keyword(id, ht)
int id;
hashtab_T *ht;
{
hashitem_T *hi;
keyentry_T *kp;
keyentry_T *kp_prev;
keyentry_T *kp_next;
int todo;
hash_lock(ht);
todo = (int)ht->ht_used;
for (hi = ht->ht_array; todo > 0; ++hi)
{
if (!HASHITEM_EMPTY(hi))
{
--todo;
kp_prev = NULL;
for (kp = HI2KE(hi); kp != NULL; )
{
if (kp->k_syn.id == id)
{
kp_next = kp->ke_next;
if (kp_prev == NULL)
{
if (kp_next == NULL)
hash_remove(ht, hi);
else
hi->hi_key = KE2HIKEY(kp_next);
}
else
kp_prev->ke_next = kp_next;
vim_free(kp->next_list);
vim_free(kp->k_syn.cont_in_list);
vim_free(kp);
kp = kp_next;
}
else
{
kp_prev = kp;
kp = kp->ke_next;
}
}
}
}
hash_unlock(ht);
}
/*
* Clear a whole keyword table.
*/
static void
clear_keywtab(ht)
hashtab_T *ht;
{
hashitem_T *hi;
int todo;
keyentry_T *kp;
keyentry_T *kp_next;
todo = (int)ht->ht_used;
for (hi = ht->ht_array; todo > 0; ++hi)
{
if (!HASHITEM_EMPTY(hi))
{
--todo;
kp = HI2KE(hi);
for (kp = HI2KE(hi); kp != NULL; kp = kp_next)
{
kp_next = kp->ke_next;
vim_free(kp->next_list);
vim_free(kp->k_syn.cont_in_list);
vim_free(kp);
}
}
}
hash_clear(ht);
hash_init(ht);
}
/*
* Add a keyword to the list of keywords.
*/
static void
add_keyword(name, id, flags, cont_in_list, next_list)
char_u *name; /* name of keyword */
int id; /* group ID for this keyword */
int flags; /* flags for this keyword */
short *cont_in_list; /* containedin for this keyword */
short *next_list; /* nextgroup for this keyword */
{
keyentry_T *kp;
hashtab_T *ht;
hashitem_T *hi;
char_u *name_ic;
long_u hash;
char_u name_folded[MAXKEYWLEN + 1];
if (curbuf->b_syn_ic)
name_ic = str_foldcase(name, (int)STRLEN(name),
name_folded, MAXKEYWLEN + 1);
else
name_ic = name;
kp = (keyentry_T *)alloc((int)(sizeof(keyentry_T) + STRLEN(name_ic)));
if (kp == NULL)
return;
STRCPY(kp->keyword, name_ic);
kp->k_syn.id = id;
kp->k_syn.inc_tag = current_syn_inc_tag;
kp->flags = flags;
kp->k_syn.cont_in_list = copy_id_list(cont_in_list);
if (cont_in_list != NULL)
curbuf->b_syn_containedin = TRUE;
kp->next_list = copy_id_list(next_list);
if (curbuf->b_syn_ic)
ht = &curbuf->b_keywtab_ic;
else
ht = &curbuf->b_keywtab;
hash = hash_hash(kp->keyword);
hi = hash_lookup(ht, kp->keyword, hash);
if (HASHITEM_EMPTY(hi))
{
/* new keyword, add to hashtable */
kp->ke_next = NULL;
hash_add_item(ht, hi, kp->keyword, hash);
}
else
{
/* keyword already exists, prepend to list */
kp->ke_next = HI2KE(hi);
hi->hi_key = KE2HIKEY(kp);
}
}
/*
* Get the start and end of the group name argument.
* Return a pointer to the first argument.
* Return NULL if the end of the command was found instead of further args.
*/
static char_u *
get_group_name(arg, name_end)
char_u *arg; /* start of the argument */
char_u **name_end; /* pointer to end of the name */
{
char_u *rest;
*name_end = skiptowhite(arg);
rest = skipwhite(*name_end);
/*
* Check if there are enough arguments. The first argument may be a
* pattern, where '|' is allowed, so only check for NUL.
*/
if (ends_excmd(*arg) || *rest == NUL)
return NULL;
return rest;
}
/*
* Check for syntax command option arguments.
* This can be called at any place in the list of arguments, and just picks
* out the arguments that are known. Can be called several times in a row to
* collect all options in between other arguments.
* Return a pointer to the next argument (which isn't an option).
* Return NULL for any error;
*/
static char_u *
get_syn_options(arg, opt)
char_u *arg; /* next argument to be checked */
syn_opt_arg_T *opt; /* various things */
{
char_u *gname_start, *gname;
int syn_id;
int len;
char *p;
int i;
int fidx;
static struct flag
{
char *name;
int argtype;
int flags;
} flagtab[] = { {"cCoOnNtTaAiInNeEdD", 0, HL_CONTAINED},
{"oOnNeElLiInNeE", 0, HL_ONELINE},
{"kKeEeEpPeEnNdD", 0, HL_KEEPEND},
{"eExXtTeEnNdD", 0, HL_EXTEND},
{"eExXcClLuUdDeEnNlL", 0, HL_EXCLUDENL},
{"tTrRaAnNsSpPaArReEnNtT", 0, HL_TRANSP},
{"sSkKiIpPnNlL", 0, HL_SKIPNL},
{"sSkKiIpPwWhHiItTeE", 0, HL_SKIPWHITE},
{"sSkKiIpPeEmMpPtTyY", 0, HL_SKIPEMPTY},
{"gGrRoOuUpPhHeErReE", 0, HL_SYNC_HERE},
{"gGrRoOuUpPtThHeErReE", 0, HL_SYNC_THERE},
{"dDiIsSpPlLaAyY", 0, HL_DISPLAY},
{"fFoOlLdD", 0, HL_FOLD},
{"cCoOnNtTaAiInNsS", 1, 0},
{"cCoOnNtTaAiInNeEdDiInN", 2, 0},
{"nNeExXtTgGrRoOuUpP", 3, 0},
};
static char *first_letters = "cCoOkKeEtTsSgGdDfFnN";
if (arg == NULL) /* already detected error */
return NULL;
for (;;)
{
/*
* This is used very often when a large number of keywords is defined.
* Need to skip quickly when no option name is found.
* Also avoid tolower(), it's slow.
*/
if (strchr(first_letters, *arg) == NULL)
break;
for (fidx = sizeof(flagtab) / sizeof(struct flag); --fidx >= 0; )
{
p = flagtab[fidx].name;
for (i = 0, len = 0; p[i] != NUL; i += 2, ++len)
if (arg[len] != p[i] && arg[len] != p[i + 1])
break;
if (p[i] == NUL && (vim_iswhite(arg[len])
|| (flagtab[fidx].argtype > 0
? arg[len] == '='
: ends_excmd(arg[len]))))
{
if (opt->keyword
&& (flagtab[fidx].flags == HL_DISPLAY
|| flagtab[fidx].flags == HL_FOLD
|| flagtab[fidx].flags == HL_EXTEND))
/* treat "display", "fold" and "extend" as a keyword */
fidx = -1;
break;
}
}
if (fidx < 0) /* no match found */
break;
if (flagtab[fidx].argtype == 1)
{
if (!opt->has_cont_list)
{
EMSG(_("E395: contains argument not accepted here"));
return NULL;
}
if (get_id_list(&arg, 8, &opt->cont_list) == FAIL)
return NULL;
}
else if (flagtab[fidx].argtype == 2)
{
#if 0 /* cannot happen */
if (opt->cont_in_list == NULL)
{
EMSG(_("E396: containedin argument not accepted here"));
return NULL;
}
#endif
if (get_id_list(&arg, 11, &opt->cont_in_list) == FAIL)
return NULL;
}
else if (flagtab[fidx].argtype == 3)
{
if (get_id_list(&arg, 9, &opt->next_list) == FAIL)
return NULL;
}
else
{
opt->flags |= flagtab[fidx].flags;
arg = skipwhite(arg + len);
if (flagtab[fidx].flags == HL_SYNC_HERE
|| flagtab[fidx].flags == HL_SYNC_THERE)
{
if (opt->sync_idx == NULL)
{
EMSG(_("E393: group[t]here not accepted here"));
return NULL;
}
gname_start = arg;
arg = skiptowhite(arg);
if (gname_start == arg)
return NULL;
gname = vim_strnsave(gname_start, (int)(arg - gname_start));
if (gname == NULL)
return NULL;
if (STRCMP(gname, "NONE") == 0)
*opt->sync_idx = NONE_IDX;
else
{
syn_id = syn_name2id(gname);
for (i = curbuf->b_syn_patterns.ga_len; --i >= 0; )
if (SYN_ITEMS(curbuf)[i].sp_syn.id == syn_id
&& SYN_ITEMS(curbuf)[i].sp_type == SPTYPE_START)
{
*opt->sync_idx = i;
break;
}
if (i < 0)
{
EMSG2(_("E394: Didn't find region item for %s"), gname);
vim_free(gname);
return NULL;
}
}
vim_free(gname);
arg = skipwhite(arg);
}
#ifdef FEAT_FOLDING
else if (flagtab[fidx].flags == HL_FOLD
&& foldmethodIsSyntax(curwin))
/* Need to update folds later. */
foldUpdateAll(curwin);
#endif
}
}
return arg;
}
/*
* Adjustments to syntax item when declared in a ":syn include"'d file.
* Set the contained flag, and if the item is not already contained, add it
* to the specified top-level group, if any.
*/
static void
syn_incl_toplevel(id, flagsp)
int id;
int *flagsp;
{
if ((*flagsp & HL_CONTAINED) || curbuf->b_syn_topgrp == 0)
return;
*flagsp |= HL_CONTAINED;
if (curbuf->b_syn_topgrp >= SYNID_CLUSTER)
{
/* We have to alloc this, because syn_combine_list() will free it. */
short *grp_list = (short *)alloc((unsigned)(2 * sizeof(short)));
int tlg_id = curbuf->b_syn_topgrp - SYNID_CLUSTER;
if (grp_list != NULL)
{
grp_list[0] = id;
grp_list[1] = 0;
syn_combine_list(&SYN_CLSTR(curbuf)[tlg_id].scl_list, &grp_list,
CLUSTER_ADD);
}
}
}
/*
* Handle ":syntax include [@{group-name}] filename" command.
*/
/* ARGSUSED */
static void
syn_cmd_include(eap, syncing)
exarg_T *eap;
int syncing; /* not used */
{
char_u *arg = eap->arg;
int sgl_id = 1;
char_u *group_name_end;
char_u *rest;
char_u *errormsg = NULL;
int prev_toplvl_grp;
int prev_syn_inc_tag;
int source = FALSE;
eap->nextcmd = find_nextcmd(arg);
if (eap->skip)
return;
if (arg[0] == '@')
{
++arg;
rest = get_group_name(arg, &group_name_end);
if (rest == NULL)
{
EMSG((char_u *)_("E397: Filename required"));
return;
}
sgl_id = syn_check_cluster(arg, (int)(group_name_end - arg));
/* separate_nextcmd() and expand_filename() depend on this */
eap->arg = rest;
}
/*
* Everything that's left, up to the next command, should be the
* filename to include.
*/
eap->argt |= (XFILE | NOSPC);
separate_nextcmd(eap);
if (*eap->arg == '<' || *eap->arg == '$' || mch_isFullName(eap->arg))
{
/* For an absolute path, "$VIM/..." or "<sfile>.." we ":source" the
* file. Need to expand the file name first. In other cases
* ":runtime!" is used. */
source = TRUE;
if (expand_filename(eap, syn_cmdlinep, &errormsg) == FAIL)
{
if (errormsg != NULL)
EMSG(errormsg);
return;
}
}
/*
* Save and restore the existing top-level grouplist id and ":syn
* include" tag around the actual inclusion.
*/
prev_syn_inc_tag = current_syn_inc_tag;
current_syn_inc_tag = ++running_syn_inc_tag;
prev_toplvl_grp = curbuf->b_syn_topgrp;
curbuf->b_syn_topgrp = sgl_id;
if (source ? do_source(eap->arg, FALSE, FALSE) == FAIL
: source_runtime(eap->arg, DOSO_NONE) == FAIL)
EMSG2(_(e_notopen), eap->arg);
curbuf->b_syn_topgrp = prev_toplvl_grp;
current_syn_inc_tag = prev_syn_inc_tag;
}
/*
* Handle ":syntax keyword {group-name} [{option}] keyword .." command.
*/
/* ARGSUSED */
static void
syn_cmd_keyword(eap, syncing)
exarg_T *eap;
int syncing; /* not used */
{
char_u *arg = eap->arg;
char_u *group_name_end;
int syn_id;
char_u *rest;
char_u *keyword_copy;
char_u *p;
char_u *kw;
syn_opt_arg_T syn_opt_arg;
int cnt;
rest = get_group_name(arg, &group_name_end);
if (rest != NULL)
{
syn_id = syn_check_group(arg, (int)(group_name_end - arg));
/* allocate a buffer, for removing the backslashes in the keyword */
keyword_copy = alloc((unsigned)STRLEN(rest) + 1);
if (keyword_copy != NULL)
{
syn_opt_arg.flags = 0;
syn_opt_arg.keyword = TRUE;
syn_opt_arg.sync_idx = NULL;
syn_opt_arg.has_cont_list = FALSE;
syn_opt_arg.cont_in_list = NULL;
syn_opt_arg.next_list = NULL;
/*
* The options given apply to ALL keywords, so all options must be
* found before keywords can be created.
* 1: collect the options and copy the keywords to keyword_copy.
*/
cnt = 0;
p = keyword_copy;
for ( ; rest != NULL && !ends_excmd(*rest); rest = skipwhite(rest))
{
rest = get_syn_options(rest, &syn_opt_arg);
if (rest == NULL || ends_excmd(*rest))
break;
/* Copy the keyword, removing backslashes, and add a NUL. */
while (*rest != NUL && !vim_iswhite(*rest))
{
if (*rest == '\\' && rest[1] != NUL)
++rest;
*p++ = *rest++;
}
*p++ = NUL;
++cnt;
}
if (!eap->skip)
{
/* Adjust flags for use of ":syn include". */
syn_incl_toplevel(syn_id, &syn_opt_arg.flags);
/*
* 2: Add an entry for each keyword.
*/
for (kw = keyword_copy; --cnt >= 0; kw += STRLEN(kw) + 1)
{
for (p = vim_strchr(kw, '['); ; )
{
if (p != NULL)
*p = NUL;
add_keyword(kw, syn_id, syn_opt_arg.flags,
syn_opt_arg.cont_in_list,
syn_opt_arg.next_list);
if (p == NULL)
break;
if (p[1] == NUL)
{
EMSG2(_("E789: Missing ']': %s"), kw);
kw = p + 2; /* skip over the NUL */
break;
}
if (p[1] == ']')
{
kw = p + 1; /* skip over the "]" */
break;
}
#ifdef FEAT_MBYTE
if (has_mbyte)
{
int l = (*mb_ptr2len)(p + 1);
mch_memmove(p, p + 1, l);
p += l;
}
else
#endif
{
p[0] = p[1];
++p;
}
}
}
}
vim_free(keyword_copy);
vim_free(syn_opt_arg.cont_in_list);
vim_free(syn_opt_arg.next_list);
}
}
if (rest != NULL)
eap->nextcmd = check_nextcmd(rest);
else
EMSG2(_(e_invarg2), arg);
redraw_curbuf_later(SOME_VALID);
syn_stack_free_all(curbuf); /* Need to recompute all syntax. */
}
/*
* Handle ":syntax match {name} [{options}] {pattern} [{options}]".
*
* Also ":syntax sync match {name} [[grouphere | groupthere] {group-name}] .."
*/
static void
syn_cmd_match(eap, syncing)
exarg_T *eap;
int syncing; /* TRUE for ":syntax sync match .. " */
{
char_u *arg = eap->arg;
char_u *group_name_end;
char_u *rest;
synpat_T item; /* the item found in the line */
int syn_id;
int idx;
syn_opt_arg_T syn_opt_arg;
int sync_idx = 0;
/* Isolate the group name, check for validity */
rest = get_group_name(arg, &group_name_end);
/* Get options before the pattern */
syn_opt_arg.flags = 0;
syn_opt_arg.keyword = FALSE;
syn_opt_arg.sync_idx = syncing ? &sync_idx : NULL;
syn_opt_arg.has_cont_list = TRUE;
syn_opt_arg.cont_list = NULL;
syn_opt_arg.cont_in_list = NULL;
syn_opt_arg.next_list = NULL;
rest = get_syn_options(rest, &syn_opt_arg);
/* get the pattern. */
init_syn_patterns();
vim_memset(&item, 0, sizeof(item));
rest = get_syn_pattern(rest, &item);
if (vim_regcomp_had_eol() && !(syn_opt_arg.flags & HL_EXCLUDENL))
syn_opt_arg.flags |= HL_HAS_EOL;
/* Get options after the pattern */
rest = get_syn_options(rest, &syn_opt_arg);
if (rest != NULL) /* all arguments are valid */
{
/*
* Check for trailing command and illegal trailing arguments.
*/
eap->nextcmd = check_nextcmd(rest);
if (!ends_excmd(*rest) || eap->skip)
rest = NULL;
else if (ga_grow(&curbuf->b_syn_patterns, 1) != FAIL
&& (syn_id = syn_check_group(arg,
(int)(group_name_end - arg))) != 0)
{
syn_incl_toplevel(syn_id, &syn_opt_arg.flags);
/*
* Store the pattern in the syn_items list
*/
idx = curbuf->b_syn_patterns.ga_len;
SYN_ITEMS(curbuf)[idx] = item;
SYN_ITEMS(curbuf)[idx].sp_syncing = syncing;
SYN_ITEMS(curbuf)[idx].sp_type = SPTYPE_MATCH;
SYN_ITEMS(curbuf)[idx].sp_syn.id = syn_id;
SYN_ITEMS(curbuf)[idx].sp_syn.inc_tag = current_syn_inc_tag;
SYN_ITEMS(curbuf)[idx].sp_flags = syn_opt_arg.flags;
SYN_ITEMS(curbuf)[idx].sp_sync_idx = sync_idx;
SYN_ITEMS(curbuf)[idx].sp_cont_list = syn_opt_arg.cont_list;
SYN_ITEMS(curbuf)[idx].sp_syn.cont_in_list =
syn_opt_arg.cont_in_list;
if (syn_opt_arg.cont_in_list != NULL)
curbuf->b_syn_containedin = TRUE;
SYN_ITEMS(curbuf)[idx].sp_next_list = syn_opt_arg.next_list;
++curbuf->b_syn_patterns.ga_len;
/* remember that we found a match for syncing on */
if (syn_opt_arg.flags & (HL_SYNC_HERE|HL_SYNC_THERE))
curbuf->b_syn_sync_flags |= SF_MATCH;
#ifdef FEAT_FOLDING
if (syn_opt_arg.flags & HL_FOLD)
++curbuf->b_syn_folditems;
#endif
redraw_curbuf_later(SOME_VALID);
syn_stack_free_all(curbuf); /* Need to recompute all syntax. */
return; /* don't free the progs and patterns now */
}
}
/*
* Something failed, free the allocated memory.
*/
vim_free(item.sp_prog);
vim_free(item.sp_pattern);
vim_free(syn_opt_arg.cont_list);
vim_free(syn_opt_arg.cont_in_list);
vim_free(syn_opt_arg.next_list);
if (rest == NULL)
EMSG2(_(e_invarg2), arg);
}
/*
* Handle ":syntax region {group-name} [matchgroup={group-name}]
* start {start} .. [skip {skip}] end {end} .. [{options}]".
*/
static void
syn_cmd_region(eap, syncing)
exarg_T *eap;
int syncing; /* TRUE for ":syntax sync region .." */
{
char_u *arg = eap->arg;
char_u *group_name_end;
char_u *rest; /* next arg, NULL on error */
char_u *key_end;
char_u *key = NULL;
char_u *p;
int item;
#define ITEM_START 0
#define ITEM_SKIP 1
#define ITEM_END 2
#define ITEM_MATCHGROUP 3
struct pat_ptr
{
synpat_T *pp_synp; /* pointer to syn_pattern */
int pp_matchgroup_id; /* matchgroup ID */
struct pat_ptr *pp_next; /* pointer to next pat_ptr */
} *(pat_ptrs[3]);
/* patterns found in the line */
struct pat_ptr *ppp;
struct pat_ptr *ppp_next;
int pat_count = 0; /* nr of syn_patterns found */
int syn_id;
int matchgroup_id = 0;
int not_enough = FALSE; /* not enough arguments */
int illegal = FALSE; /* illegal arguments */
int success = FALSE;
int idx;
syn_opt_arg_T syn_opt_arg;
/* Isolate the group name, check for validity */
rest = get_group_name(arg, &group_name_end);
pat_ptrs[0] = NULL;
pat_ptrs[1] = NULL;
pat_ptrs[2] = NULL;
init_syn_patterns();
syn_opt_arg.flags = 0;
syn_opt_arg.keyword = FALSE;
syn_opt_arg.sync_idx = NULL;
syn_opt_arg.has_cont_list = TRUE;
syn_opt_arg.cont_list = NULL;
syn_opt_arg.cont_in_list = NULL;
syn_opt_arg.next_list = NULL;
/*
* get the options, patterns and matchgroup.
*/
while (rest != NULL && !ends_excmd(*rest))
{
/* Check for option arguments */
rest = get_syn_options(rest, &syn_opt_arg);
if (rest == NULL || ends_excmd(*rest))
break;
/* must be a pattern or matchgroup then */
key_end = rest;
while (*key_end && !vim_iswhite(*key_end) && *key_end != '=')
++key_end;
vim_free(key);
key = vim_strnsave_up(rest, (int)(key_end - rest));
if (key == NULL) /* out of memory */
{
rest = NULL;
break;
}
if (STRCMP(key, "MATCHGROUP") == 0)
item = ITEM_MATCHGROUP;
else if (STRCMP(key, "START") == 0)
item = ITEM_START;
else if (STRCMP(key, "END") == 0)
item = ITEM_END;
else if (STRCMP(key, "SKIP") == 0)
{
if (pat_ptrs[ITEM_SKIP] != NULL) /* one skip pattern allowed */
{
illegal = TRUE;
break;
}
item = ITEM_SKIP;
}
else
break;
rest = skipwhite(key_end);
if (*rest != '=')
{
rest = NULL;
EMSG2(_("E398: Missing '=': %s"), arg);
break;
}
rest = skipwhite(rest + 1);
if (*rest == NUL)
{
not_enough = TRUE;
break;
}
if (item == ITEM_MATCHGROUP)
{
p = skiptowhite(rest);
if ((p - rest == 4 && STRNCMP(rest, "NONE", 4) == 0) || eap->skip)
matchgroup_id = 0;
else
{
matchgroup_id = syn_check_group(rest, (int)(p - rest));
if (matchgroup_id == 0)
{
illegal = TRUE;
break;
}
}
rest = skipwhite(p);
}
else
{
/*
* Allocate room for a syn_pattern, and link it in the list of
* syn_patterns for this item, at the start (because the list is
* used from end to start).
*/
ppp = (struct pat_ptr *)alloc((unsigned)sizeof(struct pat_ptr));
if (ppp == NULL)
{
rest = NULL;
break;
}
ppp->pp_next = pat_ptrs[item];
pat_ptrs[item] = ppp;
ppp->pp_synp = (synpat_T *)alloc_clear((unsigned)sizeof(synpat_T));
if (ppp->pp_synp == NULL)
{
rest = NULL;
break;
}
/*
* Get the syntax pattern and the following offset(s).
*/
/* Enable the appropriate \z specials. */
if (item == ITEM_START)
reg_do_extmatch = REX_SET;
else if (item == ITEM_SKIP || item == ITEM_END)
reg_do_extmatch = REX_USE;
rest = get_syn_pattern(rest, ppp->pp_synp);
reg_do_extmatch = 0;
if (item == ITEM_END && vim_regcomp_had_eol()
&& !(syn_opt_arg.flags & HL_EXCLUDENL))
ppp->pp_synp->sp_flags |= HL_HAS_EOL;
ppp->pp_matchgroup_id = matchgroup_id;
++pat_count;
}
}
vim_free(key);
if (illegal || not_enough)
rest = NULL;
/*
* Must have a "start" and "end" pattern.
*/
if (rest != NULL && (pat_ptrs[ITEM_START] == NULL ||
pat_ptrs[ITEM_END] == NULL))
{
not_enough = TRUE;
rest = NULL;
}
if (rest != NULL)
{
/*
* Check for trailing garbage or command.
* If OK, add the item.
*/
eap->nextcmd = check_nextcmd(rest);
if (!ends_excmd(*rest) || eap->skip)
rest = NULL;
else if (ga_grow(&(curbuf->b_syn_patterns), pat_count) != FAIL
&& (syn_id = syn_check_group(arg,
(int)(group_name_end - arg))) != 0)
{
syn_incl_toplevel(syn_id, &syn_opt_arg.flags);
/*
* Store the start/skip/end in the syn_items list
*/
idx = curbuf->b_syn_patterns.ga_len;
for (item = ITEM_START; item <= ITEM_END; ++item)
{
for (ppp = pat_ptrs[item]; ppp != NULL; ppp = ppp->pp_next)
{
SYN_ITEMS(curbuf)[idx] = *(ppp->pp_synp);
SYN_ITEMS(curbuf)[idx].sp_syncing = syncing;
SYN_ITEMS(curbuf)[idx].sp_type =
(item == ITEM_START) ? SPTYPE_START :
(item == ITEM_SKIP) ? SPTYPE_SKIP : SPTYPE_END;
SYN_ITEMS(curbuf)[idx].sp_flags |= syn_opt_arg.flags;
SYN_ITEMS(curbuf)[idx].sp_syn.id = syn_id;
SYN_ITEMS(curbuf)[idx].sp_syn.inc_tag = current_syn_inc_tag;
SYN_ITEMS(curbuf)[idx].sp_syn_match_id =
ppp->pp_matchgroup_id;
if (item == ITEM_START)
{
SYN_ITEMS(curbuf)[idx].sp_cont_list =
syn_opt_arg.cont_list;
SYN_ITEMS(curbuf)[idx].sp_syn.cont_in_list =
syn_opt_arg.cont_in_list;
if (syn_opt_arg.cont_in_list != NULL)
curbuf->b_syn_containedin = TRUE;
SYN_ITEMS(curbuf)[idx].sp_next_list =
syn_opt_arg.next_list;
}
++curbuf->b_syn_patterns.ga_len;
++idx;
#ifdef FEAT_FOLDING
if (syn_opt_arg.flags & HL_FOLD)
++curbuf->b_syn_folditems;
#endif
}
}
redraw_curbuf_later(SOME_VALID);
syn_stack_free_all(curbuf); /* Need to recompute all syntax. */
success = TRUE; /* don't free the progs and patterns now */
}
}
/*
* Free the allocated memory.
*/
for (item = ITEM_START; item <= ITEM_END; ++item)
for (ppp = pat_ptrs[item]; ppp != NULL; ppp = ppp_next)
{
if (!success)
{
vim_free(ppp->pp_synp->sp_prog);
vim_free(ppp->pp_synp->sp_pattern);
}
vim_free(ppp->pp_synp);
ppp_next = ppp->pp_next;
vim_free(ppp);
}
if (!success)
{
vim_free(syn_opt_arg.cont_list);
vim_free(syn_opt_arg.cont_in_list);
vim_free(syn_opt_arg.next_list);
if (not_enough)
EMSG2(_("E399: Not enough arguments: syntax region %s"), arg);
else if (illegal || rest == NULL)
EMSG2(_(e_invarg2), arg);
}
}
/*
* A simple syntax group ID comparison function suitable for use in qsort()
*/
static int
#ifdef __BORLANDC__
_RTLENTRYF
#endif
syn_compare_stub(v1, v2)
const void *v1;
const void *v2;
{
const short *s1 = v1;
const short *s2 = v2;
return (*s1 > *s2 ? 1 : *s1 < *s2 ? -1 : 0);
}
/*
* Combines lists of syntax clusters.
* *clstr1 and *clstr2 must both be allocated memory; they will be consumed.
*/
static void
syn_combine_list(clstr1, clstr2, list_op)
short **clstr1;
short **clstr2;
int list_op;
{
int count1 = 0;
int count2 = 0;
short *g1;
short *g2;
short *clstr = NULL;
int count;
int round;
/*
* Handle degenerate cases.
*/
if (*clstr2 == NULL)
return;
if (*clstr1 == NULL || list_op == CLUSTER_REPLACE)
{
if (list_op == CLUSTER_REPLACE)
vim_free(*clstr1);
if (list_op == CLUSTER_REPLACE || list_op == CLUSTER_ADD)
*clstr1 = *clstr2;
else
vim_free(*clstr2);
return;
}
for (g1 = *clstr1; *g1; g1++)
++count1;
for (g2 = *clstr2; *g2; g2++)
++count2;
/*
* For speed purposes, sort both lists.
*/
qsort(*clstr1, (size_t)count1, sizeof(short), syn_compare_stub);
qsort(*clstr2, (size_t)count2, sizeof(short), syn_compare_stub);
/*
* We proceed in two passes; in round 1, we count the elements to place
* in the new list, and in round 2, we allocate and populate the new
* list. For speed, we use a mergesort-like method, adding the smaller
* of the current elements in each list to the new list.
*/
for (round = 1; round <= 2; round++)
{
g1 = *clstr1;
g2 = *clstr2;
count = 0;
/*
* First, loop through the lists until one of them is empty.
*/
while (*g1 && *g2)
{
/*
* We always want to add from the first list.
*/
if (*g1 < *g2)
{
if (round == 2)
clstr[count] = *g1;
count++;
g1++;
continue;
}
/*
* We only want to add from the second list if we're adding the
* lists.
*/
if (list_op == CLUSTER_ADD)
{
if (round == 2)
clstr[count] = *g2;
count++;
}
if (*g1 == *g2)
g1++;
g2++;
}
/*
* Now add the leftovers from whichever list didn't get finished
* first. As before, we only want to add from the second list if
* we're adding the lists.
*/
for (; *g1; g1++, count++)
if (round == 2)
clstr[count] = *g1;
if (list_op == CLUSTER_ADD)
for (; *g2; g2++, count++)
if (round == 2)
clstr[count] = *g2;
if (round == 1)
{
/*
* If the group ended up empty, we don't need to allocate any
* space for it.
*/
if (count == 0)
{
clstr = NULL;
break;
}
clstr = (short *)alloc((unsigned)((count + 1) * sizeof(short)));
if (clstr == NULL)
break;
clstr[count] = 0;
}
}
/*
* Finally, put the new list in place.
*/
vim_free(*clstr1);
vim_free(*clstr2);
*clstr1 = clstr;
}
/*
* Lookup a syntax cluster name and return it's ID.
* If it is not found, 0 is returned.
*/
static int
syn_scl_name2id(name)
char_u *name;
{
int i;
char_u *name_u;
/* Avoid using stricmp() too much, it's slow on some systems */
name_u = vim_strsave_up(name);
if (name_u == NULL)
return 0;
for (i = curbuf->b_syn_clusters.ga_len; --i >= 0; )
if (SYN_CLSTR(curbuf)[i].scl_name_u != NULL
&& STRCMP(name_u, SYN_CLSTR(curbuf)[i].scl_name_u) == 0)
break;
vim_free(name_u);
return (i < 0 ? 0 : i + SYNID_CLUSTER);
}
/*
* Like syn_scl_name2id(), but take a pointer + length argument.
*/
static int
syn_scl_namen2id(linep, len)
char_u *linep;
int len;
{
char_u *name;
int id = 0;
name = vim_strnsave(linep, len);
if (name != NULL)
{
id = syn_scl_name2id(name);
vim_free(name);
}
return id;
}
/*
* Find syntax cluster name in the table and return it's ID.
* The argument is a pointer to the name and the length of the name.
* If it doesn't exist yet, a new entry is created.
* Return 0 for failure.
*/
static int
syn_check_cluster(pp, len)
char_u *pp;
int len;
{
int id;
char_u *name;
name = vim_strnsave(pp, len);
if (name == NULL)
return 0;
id = syn_scl_name2id(name);
if (id == 0) /* doesn't exist yet */
id = syn_add_cluster(name);
else
vim_free(name);
return id;
}
/*
* Add new syntax cluster and return it's ID.
* "name" must be an allocated string, it will be consumed.
* Return 0 for failure.
*/
static int
syn_add_cluster(name)
char_u *name;
{
int len;
/*
* First call for this growarray: init growing array.
*/
if (curbuf->b_syn_clusters.ga_data == NULL)
{
curbuf->b_syn_clusters.ga_itemsize = sizeof(syn_cluster_T);
curbuf->b_syn_clusters.ga_growsize = 10;
}
/*
* Make room for at least one other cluster entry.
*/
if (ga_grow(&curbuf->b_syn_clusters, 1) == FAIL)
{
vim_free(name);
return 0;
}
len = curbuf->b_syn_clusters.ga_len;
vim_memset(&(SYN_CLSTR(curbuf)[len]), 0, sizeof(syn_cluster_T));
SYN_CLSTR(curbuf)[len].scl_name = name;
SYN_CLSTR(curbuf)[len].scl_name_u = vim_strsave_up(name);
SYN_CLSTR(curbuf)[len].scl_list = NULL;
++curbuf->b_syn_clusters.ga_len;
if (STRICMP(name, "Spell") == 0)
curbuf->b_spell_cluster_id = len + SYNID_CLUSTER;
if (STRICMP(name, "NoSpell") == 0)
curbuf->b_nospell_cluster_id = len + SYNID_CLUSTER;
return len + SYNID_CLUSTER;
}
/*
* Handle ":syntax cluster {cluster-name} [contains={groupname},..]
* [add={groupname},..] [remove={groupname},..]".
*/
/* ARGSUSED */
static void
syn_cmd_cluster(eap, syncing)
exarg_T *eap;
int syncing; /* not used */
{
char_u *arg = eap->arg;
char_u *group_name_end;
char_u *rest;
int scl_id;
short *clstr_list;
int got_clstr = FALSE;
int opt_len;
int list_op;
eap->nextcmd = find_nextcmd(arg);
if (eap->skip)
return;
rest = get_group_name(arg, &group_name_end);
if (rest != NULL)
{
scl_id = syn_check_cluster(arg, (int)(group_name_end - arg))
- SYNID_CLUSTER;
for (;;)
{
if (STRNICMP(rest, "add", 3) == 0
&& (vim_iswhite(rest[3]) || rest[3] == '='))
{
opt_len = 3;
list_op = CLUSTER_ADD;
}
else if (STRNICMP(rest, "remove", 6) == 0
&& (vim_iswhite(rest[6]) || rest[6] == '='))
{
opt_len = 6;
list_op = CLUSTER_SUBTRACT;
}
else if (STRNICMP(rest, "contains", 8) == 0
&& (vim_iswhite(rest[8]) || rest[8] == '='))
{
opt_len = 8;
list_op = CLUSTER_REPLACE;
}
else
break;
clstr_list = NULL;
if (get_id_list(&rest, opt_len, &clstr_list) == FAIL)
{
EMSG2(_(e_invarg2), rest);
break;
}
syn_combine_list(&SYN_CLSTR(curbuf)[scl_id].scl_list,
&clstr_list, list_op);
got_clstr = TRUE;
}
if (got_clstr)
{
redraw_curbuf_later(SOME_VALID);
syn_stack_free_all(curbuf); /* Need to recompute all syntax. */
}
}
if (!got_clstr)
EMSG(_("E400: No cluster specified"));
if (rest == NULL || !ends_excmd(*rest))
EMSG2(_(e_invarg2), arg);
}
/*
* On first call for current buffer: Init growing array.
*/
static void
init_syn_patterns()
{
curbuf->b_syn_patterns.ga_itemsize = sizeof(synpat_T);
curbuf->b_syn_patterns.ga_growsize = 10;
}
/*
* Get one pattern for a ":syntax match" or ":syntax region" command.
* Stores the pattern and program in a synpat_T.
* Returns a pointer to the next argument, or NULL in case of an error.
*/
static char_u *
get_syn_pattern(arg, ci)
char_u *arg;
synpat_T *ci;
{
char_u *end;
int *p;
int idx;
char_u *cpo_save;
/* need at least three chars */
if (arg == NULL || arg[1] == NUL || arg[2] == NUL)
return NULL;
end = skip_regexp(arg + 1, *arg, TRUE, NULL);
if (*end != *arg) /* end delimiter not found */
{
EMSG2(_("E401: Pattern delimiter not found: %s"), arg);
return NULL;
}
/* store the pattern and compiled regexp program */
if ((ci->sp_pattern = vim_strnsave(arg + 1, (int)(end - arg - 1))) == NULL)
return NULL;
/* Make 'cpoptions' empty, to avoid the 'l' flag */
cpo_save = p_cpo;
p_cpo = (char_u *)"";
ci->sp_prog = vim_regcomp(ci->sp_pattern, RE_MAGIC);
p_cpo = cpo_save;
if (ci->sp_prog == NULL)
return NULL;
ci->sp_ic = curbuf->b_syn_ic;
/*
* Check for a match, highlight or region offset.
*/
++end;
do
{
for (idx = SPO_COUNT; --idx >= 0; )
if (STRNCMP(end, spo_name_tab[idx], 3) == 0)
break;
if (idx >= 0)
{
p = &(ci->sp_offsets[idx]);
if (idx != SPO_LC_OFF)
switch (end[3])
{
case 's': break;
case 'b': break;
case 'e': idx += SPO_COUNT; break;
default: idx = -1; break;
}
if (idx >= 0)
{
ci->sp_off_flags |= (1 << idx);
if (idx == SPO_LC_OFF) /* lc=99 */
{
end += 3;
*p = getdigits(&end);
/* "lc=" offset automatically sets "ms=" offset */
if (!(ci->sp_off_flags & (1 << SPO_MS_OFF)))
{
ci->sp_off_flags |= (1 << SPO_MS_OFF);
ci->sp_offsets[SPO_MS_OFF] = *p;
}
}
else /* yy=x+99 */
{
end += 4;
if (*end == '+')
{
++end;
*p = getdigits(&end); /* positive offset */
}
else if (*end == '-')
{
++end;
*p = -getdigits(&end); /* negative offset */
}
}
if (*end != ',')
break;
++end;
}
}
} while (idx >= 0);
if (!ends_excmd(*end) && !vim_iswhite(*end))
{
EMSG2(_("E402: Garbage after pattern: %s"), arg);
return NULL;
}
return skipwhite(end);
}
/*
* Handle ":syntax sync .." command.
*/
/* ARGSUSED */
static void
syn_cmd_sync(eap, syncing)
exarg_T *eap;
int syncing; /* not used */
{
char_u *arg_start = eap->arg;
char_u *arg_end;
char_u *key = NULL;
char_u *next_arg;
int illegal = FALSE;
int finished = FALSE;
long n;
char_u *cpo_save;
if (ends_excmd(*arg_start))
{
syn_cmd_list(eap, TRUE);
return;
}
while (!ends_excmd(*arg_start))
{
arg_end = skiptowhite(arg_start);
next_arg = skipwhite(arg_end);
vim_free(key);
key = vim_strnsave_up(arg_start, (int)(arg_end - arg_start));
if (STRCMP(key, "CCOMMENT") == 0)
{
if (!eap->skip)
curbuf->b_syn_sync_flags |= SF_CCOMMENT;
if (!ends_excmd(*next_arg))
{
arg_end = skiptowhite(next_arg);
if (!eap->skip)
curbuf->b_syn_sync_id = syn_check_group(next_arg,
(int)(arg_end - next_arg));
next_arg = skipwhite(arg_end);
}
else if (!eap->skip)
curbuf->b_syn_sync_id = syn_name2id((char_u *)"Comment");
}
else if ( STRNCMP(key, "LINES", 5) == 0
|| STRNCMP(key, "MINLINES", 8) == 0
|| STRNCMP(key, "MAXLINES", 8) == 0
|| STRNCMP(key, "LINEBREAKS", 10) == 0)
{
if (key[4] == 'S')
arg_end = key + 6;
else if (key[0] == 'L')
arg_end = key + 11;
else
arg_end = key + 9;
if (arg_end[-1] != '=' || !VIM_ISDIGIT(*arg_end))
{
illegal = TRUE;
break;
}
n = getdigits(&arg_end);
if (!eap->skip)
{
if (key[4] == 'B')
curbuf->b_syn_sync_linebreaks = n;
else if (key[1] == 'A')
curbuf->b_syn_sync_maxlines = n;
else
curbuf->b_syn_sync_minlines = n;
}
}
else if (STRCMP(key, "FROMSTART") == 0)
{
if (!eap->skip)
{
curbuf->b_syn_sync_minlines = MAXLNUM;
curbuf->b_syn_sync_maxlines = 0;
}
}
else if (STRCMP(key, "LINECONT") == 0)
{
if (curbuf->b_syn_linecont_pat != NULL)
{
EMSG(_("E403: syntax sync: line continuations pattern specified twice"));
finished = TRUE;
break;
}
arg_end = skip_regexp(next_arg + 1, *next_arg, TRUE, NULL);
if (*arg_end != *next_arg) /* end delimiter not found */
{
illegal = TRUE;
break;
}
if (!eap->skip)
{
/* store the pattern and compiled regexp program */
if ((curbuf->b_syn_linecont_pat = vim_strnsave(next_arg + 1,
(int)(arg_end - next_arg - 1))) == NULL)
{
finished = TRUE;
break;
}
curbuf->b_syn_linecont_ic = curbuf->b_syn_ic;
/* Make 'cpoptions' empty, to avoid the 'l' flag */
cpo_save = p_cpo;
p_cpo = (char_u *)"";
curbuf->b_syn_linecont_prog =
vim_regcomp(curbuf->b_syn_linecont_pat, RE_MAGIC);
p_cpo = cpo_save;
if (curbuf->b_syn_linecont_prog == NULL)
{
vim_free(curbuf->b_syn_linecont_pat);
curbuf->b_syn_linecont_pat = NULL;
finished = TRUE;
break;
}
}
next_arg = skipwhite(arg_end + 1);
}
else
{
eap->arg = next_arg;
if (STRCMP(key, "MATCH") == 0)
syn_cmd_match(eap, TRUE);
else if (STRCMP(key, "REGION") == 0)
syn_cmd_region(eap, TRUE);
else if (STRCMP(key, "CLEAR") == 0)
syn_cmd_clear(eap, TRUE);
else
illegal = TRUE;
finished = TRUE;
break;
}
arg_start = next_arg;
}
vim_free(key);
if (illegal)
EMSG2(_("E404: Illegal arguments: %s"), arg_start);
else if (!finished)
{
eap->nextcmd = check_nextcmd(arg_start);
redraw_curbuf_later(SOME_VALID);
syn_stack_free_all(curbuf); /* Need to recompute all syntax. */
}
}
/*
* Convert a line of highlight group names into a list of group ID numbers.
* "arg" should point to the "contains" or "nextgroup" keyword.
* "arg" is advanced to after the last group name.
* Careful: the argument is modified (NULs added).
* returns FAIL for some error, OK for success.
*/
static int
get_id_list(arg, keylen, list)
char_u **arg;
int keylen; /* length of keyword */
short **list; /* where to store the resulting list, if not
NULL, the list is silently skipped! */
{
char_u *p = NULL;
char_u *end;
int round;
int count;
int total_count = 0;
short *retval = NULL;
char_u *name;
regmatch_T regmatch;
int id;
int i;
int failed = FALSE;
/*
* We parse the list twice:
* round == 1: count the number of items, allocate the array.
* round == 2: fill the array with the items.
* In round 1 new groups may be added, causing the number of items to
* grow when a regexp is used. In that case round 1 is done once again.
*/
for (round = 1; round <= 2; ++round)
{
/*
* skip "contains"
*/
p = skipwhite(*arg + keylen);
if (*p != '=')
{
EMSG2(_("E405: Missing equal sign: %s"), *arg);
break;
}
p = skipwhite(p + 1);
if (ends_excmd(*p))
{
EMSG2(_("E406: Empty argument: %s"), *arg);
break;
}
/*
* parse the arguments after "contains"
*/
count = 0;
while (!ends_excmd(*p))
{
for (end = p; *end && !vim_iswhite(*end) && *end != ','; ++end)
;
name = alloc((int)(end - p + 3)); /* leave room for "^$" */
if (name == NULL)
{
failed = TRUE;
break;
}
vim_strncpy(name + 1, p, end - p);
if ( STRCMP(name + 1, "ALLBUT") == 0
|| STRCMP(name + 1, "ALL") == 0
|| STRCMP(name + 1, "TOP") == 0
|| STRCMP(name + 1, "CONTAINED") == 0)
{
if (TOUPPER_ASC(**arg) != 'C')
{
EMSG2(_("E407: %s not allowed here"), name + 1);
failed = TRUE;
vim_free(name);
break;
}
if (count != 0)
{
EMSG2(_("E408: %s must be first in contains list"), name + 1);
failed = TRUE;
vim_free(name);
break;
}
if (name[1] == 'A')
id = SYNID_ALLBUT;
else if (name[1] == 'T')
id = SYNID_TOP;
else
id = SYNID_CONTAINED;
id += current_syn_inc_tag;
}
else if (name[1] == '@')
{
id = syn_check_cluster(name + 2, (int)(end - p - 1));
}
else
{
/*
* Handle full group name.
*/
if (vim_strpbrk(name + 1, (char_u *)"\\.*^$~[") == NULL)
id = syn_check_group(name + 1, (int)(end - p));
else
{
/*
* Handle match of regexp with group names.
*/
*name = '^';
STRCAT(name, "$");
regmatch.regprog = vim_regcomp(name, RE_MAGIC);
if (regmatch.regprog == NULL)
{
failed = TRUE;
vim_free(name);
break;
}
regmatch.rm_ic = TRUE;
id = 0;
for (i = highlight_ga.ga_len; --i >= 0; )
{
if (vim_regexec(®match, HL_TABLE()[i].sg_name,
(colnr_T)0))
{
if (round == 2)
{
/* Got more items than expected; can happen
* when adding items that match:
* "contains=a.*b,axb".
* Go back to first round */
if (count >= total_count)
{
vim_free(retval);
round = 1;
}
else
retval[count] = i + 1;
}
++count;
id = -1; /* remember that we found one */
}
}
vim_free(regmatch.regprog);
}
}
vim_free(name);
if (id == 0)
{
EMSG2(_("E409: Unknown group name: %s"), p);
failed = TRUE;
break;
}
if (id > 0)
{
if (round == 2)
{
/* Got more items than expected, go back to first round */
if (count >= total_count)
{
vim_free(retval);
round = 1;
}
else
retval[count] = id;
}
++count;
}
p = skipwhite(end);
if (*p != ',')
break;
p = skipwhite(p + 1); /* skip comma in between arguments */
}
if (failed)
break;
if (round == 1)
{
retval = (short *)alloc((unsigned)((count + 1) * sizeof(short)));
if (retval == NULL)
break;
retval[count] = 0; /* zero means end of the list */
total_count = count;
}
}
*arg = p;
if (failed || retval == NULL)
{
vim_free(retval);
return FAIL;
}
if (*list == NULL)
*list = retval;
else
vim_free(retval); /* list already found, don't overwrite it */
return OK;
}
/*
* Make a copy of an ID list.
*/
static short *
copy_id_list(list)
short *list;
{
int len;
int count;
short *retval;
if (list == NULL)
return NULL;
for (count = 0; list[count]; ++count)
;
len = (count + 1) * sizeof(short);
retval = (short *)alloc((unsigned)len);
if (retval != NULL)
mch_memmove(retval, list, (size_t)len);
return retval;
}
/*
* Check if syntax group "ssp" is in the ID list "list" of "cur_si".
* "cur_si" can be NULL if not checking the "containedin" list.
* Used to check if a syntax item is in the "contains" or "nextgroup" list of
* the current item.
* This function is called very often, keep it fast!!
*/
static int
in_id_list(cur_si, list, ssp, contained)
stateitem_T *cur_si; /* current item or NULL */
short *list; /* id list */
struct sp_syn *ssp; /* group id and ":syn include" tag of group */
int contained; /* group id is contained */
{
int retval;
short *scl_list;
short item;
short id = ssp->id;
static int depth = 0;
int r;
/* If spp has a "containedin" list and "cur_si" is in it, return TRUE. */
if (cur_si != NULL && ssp->cont_in_list != NULL
&& !(cur_si->si_flags & HL_MATCH))
{
/* Ignore transparent items without a contains argument. Double check
* that we don't go back past the first one. */
while ((cur_si->si_flags & HL_TRANS_CONT)
&& cur_si > (stateitem_T *)(current_state.ga_data))
--cur_si;
/* cur_si->si_idx is -1 for keywords, these never contain anything. */
if (cur_si->si_idx >= 0 && in_id_list(NULL, ssp->cont_in_list,
&(SYN_ITEMS(syn_buf)[cur_si->si_idx].sp_syn),
SYN_ITEMS(syn_buf)[cur_si->si_idx].sp_flags & HL_CONTAINED))
return TRUE;
}
if (list == NULL)
return FALSE;
/*
* If list is ID_LIST_ALL, we are in a transparent item that isn't
* inside anything. Only allow not-contained groups.
*/
if (list == ID_LIST_ALL)
return !contained;
/*
* If the first item is "ALLBUT", return TRUE if "id" is NOT in the
* contains list. We also require that "id" is at the same ":syn include"
* level as the list.
*/
item = *list;
if (item >= SYNID_ALLBUT && item < SYNID_CLUSTER)
{
if (item < SYNID_TOP)
{
/* ALL or ALLBUT: accept all groups in the same file */
if (item - SYNID_ALLBUT != ssp->inc_tag)
return FALSE;
}
else if (item < SYNID_CONTAINED)
{
/* TOP: accept all not-contained groups in the same file */
if (item - SYNID_TOP != ssp->inc_tag || contained)
return FALSE;
}
else
{
/* CONTAINED: accept all contained groups in the same file */
if (item - SYNID_CONTAINED != ssp->inc_tag || !contained)
return FALSE;
}
item = *++list;
retval = FALSE;
}
else
retval = TRUE;
/*
* Return "retval" if id is in the contains list.
*/
while (item != 0)
{
if (item == id)
return retval;
if (item >= SYNID_CLUSTER)
{
scl_list = SYN_CLSTR(syn_buf)[item - SYNID_CLUSTER].scl_list;
/* restrict recursiveness to 30 to avoid an endless loop for a
* cluster that includes itself (indirectly) */
if (scl_list != NULL && depth < 30)
{
++depth;
r = in_id_list(NULL, scl_list, ssp, contained);
--depth;
if (r)
return retval;
}
}
item = *++list;
}
return !retval;
}
struct subcommand
{
char *name; /* subcommand name */
void (*func)__ARGS((exarg_T *, int)); /* function to call */
};
static struct subcommand subcommands[] =
{
{"case", syn_cmd_case},
{"clear", syn_cmd_clear},
{"cluster", syn_cmd_cluster},
{"enable", syn_cmd_enable},
{"include", syn_cmd_include},
{"keyword", syn_cmd_keyword},
{"list", syn_cmd_list},
{"manual", syn_cmd_manual},
{"match", syn_cmd_match},
{"on", syn_cmd_on},
{"off", syn_cmd_off},
{"region", syn_cmd_region},
{"reset", syn_cmd_reset},
{"spell", syn_cmd_spell},
{"sync", syn_cmd_sync},
{"", syn_cmd_list},
{NULL, NULL}
};
/*
* ":syntax".
* This searches the subcommands[] table for the subcommand name, and calls a
* syntax_subcommand() function to do the rest.
*/
void
ex_syntax(eap)
exarg_T *eap;
{
char_u *arg = eap->arg;
char_u *subcmd_end;
char_u *subcmd_name;
int i;
syn_cmdlinep = eap->cmdlinep;
/* isolate subcommand name */
for (subcmd_end = arg; ASCII_ISALPHA(*subcmd_end); ++subcmd_end)
;
subcmd_name = vim_strnsave(arg, (int)(subcmd_end - arg));
if (subcmd_name != NULL)
{
if (eap->skip) /* skip error messages for all subcommands */
++emsg_skip;
for (i = 0; ; ++i)
{
if (subcommands[i].name == NULL)
{
EMSG2(_("E410: Invalid :syntax subcommand: %s"), subcmd_name);
break;
}
if (STRCMP(subcmd_name, (char_u *)subcommands[i].name) == 0)
{
eap->arg = skipwhite(subcmd_end);
(subcommands[i].func)(eap, FALSE);
break;
}
}
vim_free(subcmd_name);
if (eap->skip)
--emsg_skip;
}
}
int
syntax_present(buf)
buf_T *buf;
{
return (buf->b_syn_patterns.ga_len != 0
|| buf->b_syn_clusters.ga_len != 0
|| curbuf->b_keywtab.ht_used > 0
|| curbuf->b_keywtab_ic.ht_used > 0);
}
#if defined(FEAT_CMDL_COMPL) || defined(PROTO)
static enum
{
EXP_SUBCMD, /* expand ":syn" sub-commands */
EXP_CASE /* expand ":syn case" arguments */
} expand_what;
/*
* Handle command line completion for :syntax command.
*/
void
set_context_in_syntax_cmd(xp, arg)
expand_T *xp;
char_u *arg;
{
char_u *p;
/* Default: expand subcommands */
xp->xp_context = EXPAND_SYNTAX;
expand_what = EXP_SUBCMD;
xp->xp_pattern = arg;
include_link = FALSE;
include_default = FALSE;
/* (part of) subcommand already typed */
if (*arg != NUL)
{
p = skiptowhite(arg);
if (*p != NUL) /* past first word */
{
xp->xp_pattern = skipwhite(p);
if (*skiptowhite(xp->xp_pattern) != NUL)
xp->xp_context = EXPAND_NOTHING;
else if (STRNICMP(arg, "case", p - arg) == 0)
expand_what = EXP_CASE;
else if ( STRNICMP(arg, "keyword", p - arg) == 0
|| STRNICMP(arg, "region", p - arg) == 0
|| STRNICMP(arg, "match", p - arg) == 0
|| STRNICMP(arg, "list", p - arg) == 0)
xp->xp_context = EXPAND_HIGHLIGHT;
else
xp->xp_context = EXPAND_NOTHING;
}
}
}
static char *(case_args[]) = {"match", "ignore", NULL};
/*
* Function given to ExpandGeneric() to obtain the list syntax names for
* expansion.
*/
/*ARGSUSED*/
char_u *
get_syntax_name(xp, idx)
expand_T *xp;
int idx;
{
if (expand_what == EXP_SUBCMD)
return (char_u *)subcommands[idx].name;
return (char_u *)case_args[idx];
}
#endif /* FEAT_CMDL_COMPL */
/*
* Function called for expression evaluation: get syntax ID at file position.
*/
int
syn_get_id(wp, lnum, col, trans, spellp)
win_T *wp;
long lnum;
colnr_T col;
int trans; /* remove transparancy */
int *spellp; /* return: can do spell checking */
{
/* When the position is not after the current position and in the same
* line of the same buffer, need to restart parsing. */
if (wp->w_buffer != syn_buf
|| lnum != current_lnum
|| col < current_col)
syntax_start(wp, lnum);
(void)get_syntax_attr(col, spellp);
return (trans ? current_trans_id : current_id);
}
#if defined(FEAT_FOLDING) || defined(PROTO)
/*
* Function called to get folding level for line "lnum" in window "wp".
*/
int
syn_get_foldlevel(wp, lnum)
win_T *wp;
long lnum;
{
int level = 0;
int i;
/* Return quickly when there are no fold items at all. */
if (wp->w_buffer->b_syn_folditems != 0)
{
syntax_start(wp, lnum);
for (i = 0; i < current_state.ga_len; ++i)
if (CUR_STATE(i).si_flags & HL_FOLD)
++level;
}
if (level > wp->w_p_fdn)
{
level = wp->w_p_fdn;
if (level < 0)
level = 0;
}
return level;
}
#endif
#endif /* FEAT_SYN_HL */
/**************************************
* Highlighting stuff *
**************************************/
/*
* The default highlight groups. These are compiled-in for fast startup and
* they still work when the runtime files can't be found.
* When making changes here, also change runtime/colors/default.vim!
* The #ifdefs are needed to reduce the amount of static data. Helps to make
* the 16 bit DOS (museum) version compile.
*/
#ifdef FEAT_GUI
# define CENT(a, b) b
#else
# define CENT(a, b) a
#endif
static char *(highlight_init_both[]) =
{
CENT("ErrorMsg term=standout ctermbg=DarkRed ctermfg=White",
"ErrorMsg term=standout ctermbg=DarkRed ctermfg=White guibg=Red guifg=White"),
#ifdef FEAT_SEARCH_EXTRA
CENT("IncSearch term=reverse cterm=reverse",
"IncSearch term=reverse cterm=reverse gui=reverse"),
#endif
CENT("ModeMsg term=bold cterm=bold",
"ModeMsg term=bold cterm=bold gui=bold"),
CENT("NonText term=bold ctermfg=Blue",
"NonText term=bold ctermfg=Blue gui=bold guifg=Blue"),
CENT("StatusLine term=reverse,bold cterm=reverse,bold",
"StatusLine term=reverse,bold cterm=reverse,bold gui=reverse,bold"),
CENT("StatusLineNC term=reverse cterm=reverse",
"StatusLineNC term=reverse cterm=reverse gui=reverse"),
#ifdef FEAT_VERTSPLIT
CENT("VertSplit term=reverse cterm=reverse",
"VertSplit term=reverse cterm=reverse gui=reverse"),
#endif
#ifdef FEAT_CLIPBOARD
CENT("VisualNOS term=underline,bold cterm=underline,bold",
"VisualNOS term=underline,bold cterm=underline,bold gui=underline,bold"),
#endif
#ifdef FEAT_DIFF
CENT("DiffText term=reverse cterm=bold ctermbg=Red",
"DiffText term=reverse cterm=bold ctermbg=Red gui=bold guibg=Red"),
#endif
#ifdef FEAT_INS_EXPAND
CENT("PmenuThumb cterm=reverse",
"PmenuThumb cterm=reverse gui=reverse"),
CENT("PmenuSbar ctermbg=Grey",
"PmenuSbar ctermbg=Grey guibg=Grey"),
#endif
#ifdef FEAT_WINDOWS
CENT("TabLineSel term=bold cterm=bold",
"TabLineSel term=bold cterm=bold gui=bold"),
CENT("TabLineFill term=reverse cterm=reverse",
"TabLineFill term=reverse cterm=reverse gui=reverse"),
#endif
#ifdef FEAT_GUI
"Cursor guibg=fg guifg=bg",
"lCursor guibg=fg guifg=bg", /* should be different, but what? */
#endif
NULL
};
static char *(highlight_init_light[]) =
{
CENT("Directory term=bold ctermfg=DarkBlue",
"Directory term=bold ctermfg=DarkBlue guifg=Blue"),
CENT("LineNr term=underline ctermfg=Brown",
"LineNr term=underline ctermfg=Brown guifg=Brown"),
CENT("MoreMsg term=bold ctermfg=DarkGreen",
"MoreMsg term=bold ctermfg=DarkGreen gui=bold guifg=SeaGreen"),
CENT("Question term=standout ctermfg=DarkGreen",
"Question term=standout ctermfg=DarkGreen gui=bold guifg=SeaGreen"),
CENT("Search term=reverse ctermbg=Yellow ctermfg=NONE",
"Search term=reverse ctermbg=Yellow ctermfg=NONE guibg=Yellow guifg=NONE"),
#ifdef FEAT_SPELL
CENT("SpellBad term=reverse ctermbg=LightRed",
"SpellBad term=reverse ctermbg=LightRed guisp=Red gui=undercurl"),
CENT("SpellCap term=reverse ctermbg=LightBlue",
"SpellCap term=reverse ctermbg=LightBlue guisp=Blue gui=undercurl"),
CENT("SpellRare term=reverse ctermbg=LightMagenta",
"SpellRare term=reverse ctermbg=LightMagenta guisp=Magenta gui=undercurl"),
CENT("SpellLocal term=underline ctermbg=Cyan",
"SpellLocal term=underline ctermbg=Cyan guisp=DarkCyan gui=undercurl"),
#endif
#ifdef FEAT_INS_EXPAND
CENT("Pmenu ctermbg=LightMagenta",
"Pmenu ctermbg=LightMagenta guibg=LightMagenta"),
CENT("PmenuSel ctermbg=LightGrey",
"PmenuSel ctermbg=LightGrey guibg=Grey"),
#endif
CENT("SpecialKey term=bold ctermfg=DarkBlue",
"SpecialKey term=bold ctermfg=DarkBlue guifg=Blue"),
CENT("Title term=bold ctermfg=DarkMagenta",
"Title term=bold ctermfg=DarkMagenta gui=bold guifg=Magenta"),
CENT("WarningMsg term=standout ctermfg=DarkRed",
"WarningMsg term=standout ctermfg=DarkRed guifg=Red"),
#ifdef FEAT_WILDMENU
CENT("WildMenu term=standout ctermbg=Yellow ctermfg=Black",
"WildMenu term=standout ctermbg=Yellow ctermfg=Black guibg=Yellow guifg=Black"),
#endif
#ifdef FEAT_FOLDING
CENT("Folded term=standout ctermbg=Grey ctermfg=DarkBlue",
"Folded term=standout ctermbg=Grey ctermfg=DarkBlue guibg=LightGrey guifg=DarkBlue"),
CENT("FoldColumn term=standout ctermbg=Grey ctermfg=DarkBlue",
"FoldColumn term=standout ctermbg=Grey ctermfg=DarkBlue guibg=Grey guifg=DarkBlue"),
#endif
#ifdef FEAT_SIGNS
CENT("SignColumn term=standout ctermbg=Grey ctermfg=DarkBlue",
"SignColumn term=standout ctermbg=Grey ctermfg=DarkBlue guibg=Grey guifg=DarkBlue"),
#endif
#ifdef FEAT_VISUAL
CENT("Visual term=reverse",
"Visual term=reverse guibg=LightGrey"),
#endif
#ifdef FEAT_DIFF
CENT("DiffAdd term=bold ctermbg=LightBlue",
"DiffAdd term=bold ctermbg=LightBlue guibg=LightBlue"),
CENT("DiffChange term=bold ctermbg=LightMagenta",
"DiffChange term=bold ctermbg=LightMagenta guibg=LightMagenta"),
CENT("DiffDelete term=bold ctermfg=Blue ctermbg=LightCyan",
"DiffDelete term=bold ctermfg=Blue ctermbg=LightCyan gui=bold guifg=Blue guibg=LightCyan"),
#endif
#ifdef FEAT_WINDOWS
CENT("TabLine term=underline cterm=underline ctermfg=black ctermbg=LightGrey",
"TabLine term=underline cterm=underline ctermfg=black ctermbg=LightGrey gui=underline guibg=LightGrey"),
#endif
#ifdef FEAT_SYN_HL
CENT("CursorColumn term=reverse ctermbg=LightGrey",
"CursorColumn term=reverse ctermbg=LightGrey guibg=Grey90"),
CENT("CursorLine term=underline cterm=underline",
"CursorLine term=underline cterm=underline guibg=Grey90"),
#endif
#ifdef FEAT_AUTOCMD
CENT("MatchParen term=reverse ctermbg=Cyan",
"MatchParen term=reverse ctermbg=Cyan guibg=Cyan"),
#endif
#ifdef FEAT_GUI
"Normal gui=NONE",
#endif
NULL
};
static char *(highlight_init_dark[]) =
{
CENT("Directory term=bold ctermfg=LightCyan",
"Directory term=bold ctermfg=LightCyan guifg=Cyan"),
CENT("LineNr term=underline ctermfg=Yellow",
"LineNr term=underline ctermfg=Yellow guifg=Yellow"),
CENT("MoreMsg term=bold ctermfg=LightGreen",
"MoreMsg term=bold ctermfg=LightGreen gui=bold guifg=SeaGreen"),
CENT("Question term=standout ctermfg=LightGreen",
"Question term=standout ctermfg=LightGreen gui=bold guifg=Green"),
CENT("Search term=reverse ctermbg=Yellow ctermfg=Black",
"Search term=reverse ctermbg=Yellow ctermfg=Black guibg=Yellow guifg=Black"),
CENT("SpecialKey term=bold ctermfg=LightBlue",
"SpecialKey term=bold ctermfg=LightBlue guifg=Cyan"),
#ifdef FEAT_SPELL
CENT("SpellBad term=reverse ctermbg=Red",
"SpellBad term=reverse ctermbg=Red guisp=Red gui=undercurl"),
CENT("SpellCap term=reverse ctermbg=Blue",
"SpellCap term=reverse ctermbg=Blue guisp=Blue gui=undercurl"),
CENT("SpellRare term=reverse ctermbg=Magenta",
"SpellRare term=reverse ctermbg=Magenta guisp=Magenta gui=undercurl"),
CENT("SpellLocal term=underline ctermbg=Cyan",
"SpellLocal term=underline ctermbg=Cyan guisp=Cyan gui=undercurl"),
#endif
#ifdef FEAT_INS_EXPAND
CENT("Pmenu ctermbg=Magenta",
"Pmenu ctermbg=Magenta guibg=Magenta"),
CENT("PmenuSel ctermbg=DarkGrey",
"PmenuSel ctermbg=DarkGrey guibg=DarkGrey"),
#endif
CENT("Title term=bold ctermfg=LightMagenta",
"Title term=bold ctermfg=LightMagenta gui=bold guifg=Magenta"),
CENT("WarningMsg term=standout ctermfg=LightRed",
"WarningMsg term=standout ctermfg=LightRed guifg=Red"),
#ifdef FEAT_WILDMENU
CENT("WildMenu term=standout ctermbg=Yellow ctermfg=Black",
"WildMenu term=standout ctermbg=Yellow ctermfg=Black guibg=Yellow guifg=Black"),
#endif
#ifdef FEAT_FOLDING
CENT("Folded term=standout ctermbg=DarkGrey ctermfg=Cyan",
"Folded term=standout ctermbg=DarkGrey ctermfg=Cyan guibg=DarkGrey guifg=Cyan"),
CENT("FoldColumn term=standout ctermbg=DarkGrey ctermfg=Cyan",
"FoldColumn term=standout ctermbg=DarkGrey ctermfg=Cyan guibg=Grey guifg=Cyan"),
#endif
#ifdef FEAT_SIGNS
CENT("SignColumn term=standout ctermbg=DarkGrey ctermfg=Cyan",
"SignColumn term=standout ctermbg=DarkGrey ctermfg=Cyan guibg=Grey guifg=Cyan"),
#endif
#ifdef FEAT_VISUAL
CENT("Visual term=reverse",
"Visual term=reverse guibg=DarkGrey"),
#endif
#ifdef FEAT_DIFF
CENT("DiffAdd term=bold ctermbg=DarkBlue",
"DiffAdd term=bold ctermbg=DarkBlue guibg=DarkBlue"),
CENT("DiffChange term=bold ctermbg=DarkMagenta",
"DiffChange term=bold ctermbg=DarkMagenta guibg=DarkMagenta"),
CENT("DiffDelete term=bold ctermfg=Blue ctermbg=DarkCyan",
"DiffDelete term=bold ctermfg=Blue ctermbg=DarkCyan gui=bold guifg=Blue guibg=DarkCyan"),
#endif
#ifdef FEAT_WINDOWS
CENT("TabLine term=underline cterm=underline ctermfg=white ctermbg=DarkGrey",
"TabLine term=underline cterm=underline ctermfg=white ctermbg=DarkGrey gui=underline guibg=DarkGrey"),
#endif
#ifdef FEAT_SYN_HL
CENT("CursorColumn term=reverse ctermbg=DarkGrey",
"CursorColumn term=reverse ctermbg=DarkGrey guibg=Grey40"),
CENT("CursorLine term=underline cterm=underline",
"CursorLine term=underline cterm=underline guibg=Grey40"),
#endif
#ifdef FEAT_AUTOCMD
CENT("MatchParen term=reverse ctermbg=DarkCyan",
"MatchParen term=reverse ctermbg=DarkCyan guibg=DarkCyan"),
#endif
#ifdef FEAT_GUI
"Normal gui=NONE",
#endif
NULL
};
void
init_highlight(both, reset)
int both; /* include groups where 'bg' doesn't matter */
int reset; /* clear group first */
{
int i;
char **pp;
static int had_both = FALSE;
#ifdef FEAT_EVAL
char_u *p;
/*
* Try finding the color scheme file. Used when a color file was loaded
* and 'background' or 't_Co' is changed.
*/
p = get_var_value((char_u *)"g:colors_name");
if (p != NULL && load_colors(p) == OK)
return;
#endif
/*
* Didn't use a color file, use the compiled-in colors.
*/
if (both)
{
had_both = TRUE;
pp = highlight_init_both;
for (i = 0; pp[i] != NULL; ++i)
do_highlight((char_u *)pp[i], reset, TRUE);
}
else if (!had_both)
/* Don't do anything before the call with both == TRUE from main().
* Not everything has been setup then, and that call will overrule
* everything anyway. */
return;
if (*p_bg == 'l')
pp = highlight_init_light;
else
pp = highlight_init_dark;
for (i = 0; pp[i] != NULL; ++i)
do_highlight((char_u *)pp[i], reset, TRUE);
/* Reverse looks ugly, but grey may not work for 8 colors. Thus let it
* depend on the number of colors available.
* With 8 colors brown is equal to yellow, need to use black for Search fg
* to avoid Statement highlighted text disappears. */
if (t_colors > 8)
do_highlight((char_u *)(*p_bg == 'l' ? "Visual ctermbg=LightGrey"
: "Visual ctermbg=DarkGrey"), FALSE, TRUE);
else
{
do_highlight((char_u *)"Visual cterm=reverse", FALSE, TRUE);
if (*p_bg == 'l')
do_highlight((char_u *)"Search ctermfg=black", FALSE, TRUE);
}
#ifdef FEAT_SYN_HL
/*
* If syntax highlighting is enabled load the highlighting for it.
*/
if (get_var_value((char_u *)"g:syntax_on") != NULL)
{
static int recursive = 0;
if (recursive >= 5)
EMSG(_("E679: recursive loop loading syncolor.vim"));
else
{
++recursive;
(void)source_runtime((char_u *)"syntax/syncolor.vim", TRUE);
--recursive;
}
}
#endif
}
/*
* Load color file "name".
* Return OK for success, FAIL for failure.
*/
int
load_colors(name)
char_u *name;
{
char_u *buf;
int retval = FAIL;
static int recursive = FALSE;
/* When being called recursively, this is probably because setting
* 'background' caused the highlighting to be reloaded. This means it is
* working, thus we should return OK. */
if (recursive)
return OK;
recursive = TRUE;
buf = alloc((unsigned)(STRLEN(name) + 12));
if (buf != NULL)
{
sprintf((char *)buf, "colors/%s.vim", name);
retval = source_runtime(buf, FALSE);
vim_free(buf);
#ifdef FEAT_AUTOCMD
apply_autocmds(EVENT_COLORSCHEME, NULL, NULL, FALSE, curbuf);
#endif
}
recursive = FALSE;
return retval;
}
/*
* Handle the ":highlight .." command.
* When using ":hi clear" this is called recursively for each group with
* "forceit" and "init" both TRUE.
*/
void
do_highlight(line, forceit, init)
char_u *line;
int forceit;
int init; /* TRUE when called for initializing */
{
char_u *name_end;
char_u *p;
char_u *linep;
char_u *key_start;
char_u *arg_start;
char_u *key = NULL, *arg = NULL;
long i;
int off;
int len;
int attr;
int id;
int idx;
int dodefault = FALSE;
int doclear = FALSE;
int dolink = FALSE;
int error = FALSE;
int color;
int is_normal_group = FALSE; /* "Normal" group */
#ifdef FEAT_GUI_X11
int is_menu_group = FALSE; /* "Menu" group */
int is_scrollbar_group = FALSE; /* "Scrollbar" group */
int is_tooltip_group = FALSE; /* "Tooltip" group */
int do_colors = FALSE; /* need to update colors? */
#else
# define is_menu_group 0
# define is_tooltip_group 0
#endif
/*
* If no argument, list current highlighting.
*/
if (ends_excmd(*line))
{
for (i = 1; i <= highlight_ga.ga_len && !got_int; ++i)
/* TODO: only call when the group has attributes set */
highlight_list_one((int)i);
return;
}
/*
* Isolate the name.
*/
name_end = skiptowhite(line);
linep = skipwhite(name_end);
/*
* Check for "default" argument.
*/
if (STRNCMP(line, "default", name_end - line) == 0)
{
dodefault = TRUE;
line = linep;
name_end = skiptowhite(line);
linep = skipwhite(name_end);
}
/*
* Check for "clear" or "link" argument.
*/
if (STRNCMP(line, "clear", name_end - line) == 0)
doclear = TRUE;
if (STRNCMP(line, "link", name_end - line) == 0)
dolink = TRUE;
/*
* ":highlight {group-name}": list highlighting for one group.
*/
if (!doclear && !dolink && ends_excmd(*linep))
{
id = syn_namen2id(line, (int)(name_end - line));
if (id == 0)
EMSG2(_("E411: highlight group not found: %s"), line);
else
highlight_list_one(id);
return;
}
/*
* Handle ":highlight link {from} {to}" command.
*/
if (dolink)
{
char_u *from_start = linep;
char_u *from_end;
char_u *to_start;
char_u *to_end;
int from_id;
int to_id;
from_end = skiptowhite(from_start);
to_start = skipwhite(from_end);
to_end = skiptowhite(to_start);
if (ends_excmd(*from_start) || ends_excmd(*to_start))
{
EMSG2(_("E412: Not enough arguments: \":highlight link %s\""),
from_start);
return;
}
if (!ends_excmd(*skipwhite(to_end)))
{
EMSG2(_("E413: Too many arguments: \":highlight link %s\""), from_start);
return;
}
from_id = syn_check_group(from_start, (int)(from_end - from_start));
if (STRNCMP(to_start, "NONE", 4) == 0)
to_id = 0;
else
to_id = syn_check_group(to_start, (int)(to_end - to_start));
if (from_id > 0 && (!init || HL_TABLE()[from_id - 1].sg_set == 0))
{
/*
* Don't allow a link when there already is some highlighting
* for the group, unless '!' is used
*/
if (to_id > 0 && !forceit && !init
&& hl_has_settings(from_id - 1, dodefault))
{
if (sourcing_name == NULL && !dodefault)
EMSG(_("E414: group has settings, highlight link ignored"));
}
else
{
if (!init)
HL_TABLE()[from_id - 1].sg_set |= SG_LINK;
HL_TABLE()[from_id - 1].sg_link = to_id;
#ifdef FEAT_EVAL
HL_TABLE()[from_id - 1].sg_scriptID = current_SID;
#endif
redraw_all_later(SOME_VALID);
}
}
/* Only call highlight_changed() once, after sourcing a syntax file */
need_highlight_changed = TRUE;
return;
}
if (doclear)
{
/*
* ":highlight clear [group]" command.
*/
line = linep;
if (ends_excmd(*line))
{
#ifdef FEAT_GUI
/* First, we do not destroy the old values, but allocate the new
* ones and update the display. THEN we destroy the old values.
* If we destroy the old values first, then the old values
* (such as GuiFont's or GuiFontset's) will still be displayed but
* invalid because they were free'd.
*/
if (gui.in_use)
{
# ifdef FEAT_BEVAL_TIP
gui_init_tooltip_font();
# endif
# if defined(FEAT_MENU) && (defined(FEAT_GUI_ATHENA) || defined(FEAT_GUI_MOTIF))
gui_init_menu_font();
# endif
}
# if defined(FEAT_GUI_MSWIN) || defined(FEAT_GUI_X11)
gui_mch_def_colors();
# endif
# ifdef FEAT_GUI_X11
# ifdef FEAT_MENU
/* This only needs to be done when there is no Menu highlight
* group defined by default, which IS currently the case.
*/
gui_mch_new_menu_colors();
# endif
if (gui.in_use)
{
gui_new_scrollbar_colors();
# ifdef FEAT_BEVAL
gui_mch_new_tooltip_colors();
# endif
# ifdef FEAT_MENU
gui_mch_new_menu_font();
# endif
}
# endif
/* Ok, we're done allocating the new default graphics items.
* The screen should already be refreshed at this point.
* It is now Ok to clear out the old data.
*/
#endif
#ifdef FEAT_EVAL
do_unlet((char_u *)"colors_name", TRUE);
#endif
restore_cterm_colors();
/*
* Clear all default highlight groups and load the defaults.
*/
for (idx = 0; idx < highlight_ga.ga_len; ++idx)
highlight_clear(idx);
init_highlight(TRUE, TRUE);
#ifdef FEAT_GUI
if (gui.in_use)
highlight_gui_started();
#endif
highlight_changed();
redraw_later_clear();
return;
}
name_end = skiptowhite(line);
linep = skipwhite(name_end);
}
/*
* Find the group name in the table. If it does not exist yet, add it.
*/
id = syn_check_group(line, (int)(name_end - line));
if (id == 0) /* failed (out of memory) */
return;
idx = id - 1; /* index is ID minus one */
/* Return if "default" was used and the group already has settings. */
if (dodefault && hl_has_settings(idx, TRUE))
return;
if (STRCMP(HL_TABLE()[idx].sg_name_u, "NORMAL") == 0)
is_normal_group = TRUE;
#ifdef FEAT_GUI_X11
else if (STRCMP(HL_TABLE()[idx].sg_name_u, "MENU") == 0)
is_menu_group = TRUE;
else if (STRCMP(HL_TABLE()[idx].sg_name_u, "SCROLLBAR") == 0)
is_scrollbar_group = TRUE;
else if (STRCMP(HL_TABLE()[idx].sg_name_u, "TOOLTIP") == 0)
is_tooltip_group = TRUE;
#endif
/* Clear the highlighting for ":hi clear {group}" and ":hi clear". */
if (doclear || (forceit && init))
{
highlight_clear(idx);
if (!doclear)
HL_TABLE()[idx].sg_set = 0;
}
if (!doclear)
while (!ends_excmd(*linep))
{
key_start = linep;
if (*linep == '=')
{
EMSG2(_("E415: unexpected equal sign: %s"), key_start);
error = TRUE;
break;
}
/*
* Isolate the key ("term", "ctermfg", "ctermbg", "font", "guifg" or
* "guibg").
*/
while (*linep && !vim_iswhite(*linep) && *linep != '=')
++linep;
vim_free(key);
key = vim_strnsave_up(key_start, (int)(linep - key_start));
if (key == NULL)
{
error = TRUE;
break;
}
linep = skipwhite(linep);
if (STRCMP(key, "NONE") == 0)
{
if (!init || HL_TABLE()[idx].sg_set == 0)
{
if (!init)
HL_TABLE()[idx].sg_set |= SG_TERM+SG_CTERM+SG_GUI;
highlight_clear(idx);
}
continue;
}
/*
* Check for the equal sign.
*/
if (*linep != '=')
{
EMSG2(_("E416: missing equal sign: %s"), key_start);
error = TRUE;
break;
}
++linep;
/*
* Isolate the argument.
*/
linep = skipwhite(linep);
if (*linep == '\'') /* guifg='color name' */
{
arg_start = ++linep;
linep = vim_strchr(linep, '\'');
if (linep == NULL)
{
EMSG2(_(e_invarg2), key_start);
error = TRUE;
break;
}
}
else
{
arg_start = linep;
linep = skiptowhite(linep);
}
if (linep == arg_start)
{
EMSG2(_("E417: missing argument: %s"), key_start);
error = TRUE;
break;
}
vim_free(arg);
arg = vim_strnsave(arg_start, (int)(linep - arg_start));
if (arg == NULL)
{
error = TRUE;
break;
}
if (*linep == '\'')
++linep;
/*
* Store the argument.
*/
if ( STRCMP(key, "TERM") == 0
|| STRCMP(key, "CTERM") == 0
|| STRCMP(key, "GUI") == 0)
{
attr = 0;
off = 0;
while (arg[off] != NUL)
{
for (i = sizeof(hl_attr_table) / sizeof(int); --i >= 0; )
{
len = (int)STRLEN(hl_name_table[i]);
if (STRNICMP(arg + off, hl_name_table[i], len) == 0)
{
attr |= hl_attr_table[i];
off += len;
break;
}
}
if (i < 0)
{
EMSG2(_("E418: Illegal value: %s"), arg);
error = TRUE;
break;
}
if (arg[off] == ',') /* another one follows */
++off;
}
if (error)
break;
if (*key == 'T')
{
if (!init || !(HL_TABLE()[idx].sg_set & SG_TERM))
{
if (!init)
HL_TABLE()[idx].sg_set |= SG_TERM;
HL_TABLE()[idx].sg_term = attr;
}
}
else if (*key == 'C')
{
if (!init || !(HL_TABLE()[idx].sg_set & SG_CTERM))
{
if (!init)
HL_TABLE()[idx].sg_set |= SG_CTERM;
HL_TABLE()[idx].sg_cterm = attr;
HL_TABLE()[idx].sg_cterm_bold = FALSE;
}
}
#ifdef FEAT_GUI
else
{
if (!init || !(HL_TABLE()[idx].sg_set & SG_GUI))
{
if (!init)
HL_TABLE()[idx].sg_set |= SG_GUI;
HL_TABLE()[idx].sg_gui = attr;
}
}
#endif
}
else if (STRCMP(key, "FONT") == 0)
{
/* in non-GUI fonts are simply ignored */
#ifdef FEAT_GUI
if (!gui.shell_created)
{
/* GUI not started yet, always accept the name. */
vim_free(HL_TABLE()[idx].sg_font_name);
HL_TABLE()[idx].sg_font_name = vim_strsave(arg);
}
else
{
GuiFont temp_sg_font = HL_TABLE()[idx].sg_font;
# ifdef FEAT_XFONTSET
GuiFontset temp_sg_fontset = HL_TABLE()[idx].sg_fontset;
# endif
/* First, save the current font/fontset.
* Then try to allocate the font/fontset.
* If the allocation fails, HL_TABLE()[idx].sg_font OR
* sg_fontset will be set to NOFONT or NOFONTSET respectively.
*/
HL_TABLE()[idx].sg_font = NOFONT;
# ifdef FEAT_XFONTSET
HL_TABLE()[idx].sg_fontset = NOFONTSET;
# endif
hl_do_font(idx, arg, is_normal_group, is_menu_group,
is_tooltip_group);
# ifdef FEAT_XFONTSET
if (HL_TABLE()[idx].sg_fontset != NOFONTSET)
{
/* New fontset was accepted. Free the old one, if there was
* one.
*/
gui_mch_free_fontset(temp_sg_fontset);
vim_free(HL_TABLE()[idx].sg_font_name);
HL_TABLE()[idx].sg_font_name = vim_strsave(arg);
}
else
HL_TABLE()[idx].sg_fontset = temp_sg_fontset;
# endif
if (HL_TABLE()[idx].sg_font != NOFONT)
{
/* New font was accepted. Free the old one, if there was
* one.
*/
gui_mch_free_font(temp_sg_font);
vim_free(HL_TABLE()[idx].sg_font_name);
HL_TABLE()[idx].sg_font_name = vim_strsave(arg);
}
else
HL_TABLE()[idx].sg_font = temp_sg_font;
}
#endif
}
else if (STRCMP(key, "CTERMFG") == 0 || STRCMP(key, "CTERMBG") == 0)
{
if (!init || !(HL_TABLE()[idx].sg_set & SG_CTERM))
{
if (!init)
HL_TABLE()[idx].sg_set |= SG_CTERM;
/* When setting the foreground color, and previously the "bold"
* flag was set for a light color, reset it now */
if (key[5] == 'F' && HL_TABLE()[idx].sg_cterm_bold)
{
HL_TABLE()[idx].sg_cterm &= ~HL_BOLD;
HL_TABLE()[idx].sg_cterm_bold = FALSE;
}
if (VIM_ISDIGIT(*arg))
color = atoi((char *)arg);
else if (STRICMP(arg, "fg") == 0)
{
if (cterm_normal_fg_color)
color = cterm_normal_fg_color - 1;
else
{
EMSG(_("E419: FG color unknown"));
error = TRUE;
break;
}
}
else if (STRICMP(arg, "bg") == 0)
{
if (cterm_normal_bg_color > 0)
color = cterm_normal_bg_color - 1;
else
{
EMSG(_("E420: BG color unknown"));
error = TRUE;
break;
}
}
else
{
static char *(color_names[28]) = {
"Black", "DarkBlue", "DarkGreen", "DarkCyan",
"DarkRed", "DarkMagenta", "Brown", "DarkYellow",
"Gray", "Grey",
"LightGray", "LightGrey", "DarkGray", "DarkGrey",
"Blue", "LightBlue", "Green", "LightGreen",
"Cyan", "LightCyan", "Red", "LightRed", "Magenta",
"LightMagenta", "Yellow", "LightYellow", "White", "NONE"};
static int color_numbers_16[28] = {0, 1, 2, 3,
4, 5, 6, 6,
7, 7,
7, 7, 8, 8,
9, 9, 10, 10,
11, 11, 12, 12, 13,
13, 14, 14, 15, -1};
/* for xterm with 88 colors... */
static int color_numbers_88[28] = {0, 4, 2, 6,
1, 5, 32, 72,
84, 84,
7, 7, 82, 82,
12, 43, 10, 61,
14, 63, 9, 74, 13,
75, 11, 78, 15, -1};
/* for xterm with 256 colors... */
static int color_numbers_256[28] = {0, 4, 2, 6,
1, 5, 130, 130,
248, 248,
7, 7, 242, 242,
12, 81, 10, 121,
14, 159, 9, 224, 13,
225, 11, 229, 15, -1};
/* for terminals with less than 16 colors... */
static int color_numbers_8[28] = {0, 4, 2, 6,
1, 5, 3, 3,
7, 7,
7, 7, 0+8, 0+8,
4+8, 4+8, 2+8, 2+8,
6+8, 6+8, 1+8, 1+8, 5+8,
5+8, 3+8, 3+8, 7+8, -1};
#if defined(__QNXNTO__)
static int *color_numbers_8_qansi = color_numbers_8;
/* On qnx, the 8 & 16 color arrays are the same */
if (STRNCMP(T_NAME, "qansi", 5) == 0)
color_numbers_8_qansi = color_numbers_16;
#endif
/* reduce calls to STRICMP a bit, it can be slow */
off = TOUPPER_ASC(*arg);
for (i = (sizeof(color_names) / sizeof(char *)); --i >= 0; )
if (off == color_names[i][0]
&& STRICMP(arg + 1, color_names[i] + 1) == 0)
break;
if (i < 0)
{
EMSG2(_("E421: Color name or number not recognized: %s"), key_start);
error = TRUE;
break;
}
/* Use the _16 table to check if its a valid color name. */
color = color_numbers_16[i];
if (color >= 0)
{
if (t_colors == 8)
{
/* t_Co is 8: use the 8 colors table */
#if defined(__QNXNTO__)
color = color_numbers_8_qansi[i];
#else
color = color_numbers_8[i];
#endif
if (key[5] == 'F')
{
/* set/reset bold attribute to get light foreground
* colors (on some terminals, e.g. "linux") */
if (color & 8)
{
HL_TABLE()[idx].sg_cterm |= HL_BOLD;
HL_TABLE()[idx].sg_cterm_bold = TRUE;
}
else
HL_TABLE()[idx].sg_cterm &= ~HL_BOLD;
}
color &= 7; /* truncate to 8 colors */
}
else if (t_colors == 16 || t_colors == 88
|| t_colors == 256)
{
/*
* Guess: if the termcap entry ends in 'm', it is
* probably an xterm-like terminal. Use the changed
* order for colors.
*/
if (*T_CAF != NUL)
p = T_CAF;
else
p = T_CSF;
if (*p != NUL && *(p + STRLEN(p) - 1) == 'm')
switch (t_colors)
{
case 16:
color = color_numbers_8[i];
break;
case 88:
color = color_numbers_88[i];
break;
case 256:
color = color_numbers_256[i];
break;
}
}
}
}
/* Add one to the argument, to avoid zero */
if (key[5] == 'F')
{
HL_TABLE()[idx].sg_cterm_fg = color + 1;
if (is_normal_group)
{
cterm_normal_fg_color = color + 1;
cterm_normal_fg_bold = (HL_TABLE()[idx].sg_cterm & HL_BOLD);
#ifdef FEAT_GUI
/* Don't do this if the GUI is used. */
if (!gui.in_use && !gui.starting)
#endif
{
must_redraw = CLEAR;
if (termcap_active)
term_fg_color(color);
}
}
}
else
{
HL_TABLE()[idx].sg_cterm_bg = color + 1;
if (is_normal_group)
{
cterm_normal_bg_color = color + 1;
#ifdef FEAT_GUI
/* Don't mess with 'background' if the GUI is used. */
if (!gui.in_use && !gui.starting)
#endif
{
must_redraw = CLEAR;
if (termcap_active)
term_bg_color(color);
if (t_colors < 16)
i = (color == 0 || color == 4);
else
i = (color < 7 || color == 8);
/* Set the 'background' option if the value is wrong. */
if (i != (*p_bg == 'd'))
set_option_value((char_u *)"bg", 0L,
i ? (char_u *)"dark" : (char_u *)"light", 0);
}
}
}
}
}
else if (STRCMP(key, "GUIFG") == 0)
{
#ifdef FEAT_GUI /* in non-GUI guifg colors are simply ignored */
if (!init || !(HL_TABLE()[idx].sg_set & SG_GUI))
{
if (!init)
HL_TABLE()[idx].sg_set |= SG_GUI;
i = color_name2handle(arg);
if (i != INVALCOLOR || STRCMP(arg, "NONE") == 0 || !gui.in_use)
{
HL_TABLE()[idx].sg_gui_fg = i;
vim_free(HL_TABLE()[idx].sg_gui_fg_name);
if (STRCMP(arg, "NONE"))
HL_TABLE()[idx].sg_gui_fg_name = vim_strsave(arg);
else
HL_TABLE()[idx].sg_gui_fg_name = NULL;
# ifdef FEAT_GUI_X11
if (is_menu_group)
gui.menu_fg_pixel = i;
if (is_scrollbar_group)
gui.scroll_fg_pixel = i;
# ifdef FEAT_BEVAL
if (is_tooltip_group)
gui.tooltip_fg_pixel = i;
# endif
do_colors = TRUE;
# endif
}
}
#endif
}
else if (STRCMP(key, "GUIBG") == 0)
{
#ifdef FEAT_GUI /* in non-GUI guibg colors are simply ignored */
if (!init || !(HL_TABLE()[idx].sg_set & SG_GUI))
{
if (!init)
HL_TABLE()[idx].sg_set |= SG_GUI;
i = color_name2handle(arg);
if (i != INVALCOLOR || STRCMP(arg, "NONE") == 0 || !gui.in_use)
{
HL_TABLE()[idx].sg_gui_bg = i;
vim_free(HL_TABLE()[idx].sg_gui_bg_name);
if (STRCMP(arg, "NONE") != 0)
HL_TABLE()[idx].sg_gui_bg_name = vim_strsave(arg);
else
HL_TABLE()[idx].sg_gui_bg_name = NULL;
# ifdef FEAT_GUI_X11
if (is_menu_group)
gui.menu_bg_pixel = i;
if (is_scrollbar_group)
gui.scroll_bg_pixel = i;
# ifdef FEAT_BEVAL
if (is_tooltip_group)
gui.tooltip_bg_pixel = i;
# endif
do_colors = TRUE;
# endif
}
}
#endif
}
else if (STRCMP(key, "GUISP") == 0)
{
#ifdef FEAT_GUI /* in non-GUI guisp colors are simply ignored */
if (!init || !(HL_TABLE()[idx].sg_set & SG_GUI))
{
if (!init)
HL_TABLE()[idx].sg_set |= SG_GUI;
i = color_name2handle(arg);
if (i != INVALCOLOR || STRCMP(arg, "NONE") == 0 || !gui.in_use)
{
HL_TABLE()[idx].sg_gui_sp = i;
vim_free(HL_TABLE()[idx].sg_gui_sp_name);
if (STRCMP(arg, "NONE") != 0)
HL_TABLE()[idx].sg_gui_sp_name = vim_strsave(arg);
else
HL_TABLE()[idx].sg_gui_sp_name = NULL;
}
}
#endif
}
else if (STRCMP(key, "START") == 0 || STRCMP(key, "STOP") == 0)
{
char_u buf[100];
char_u *tname;
if (!init)
HL_TABLE()[idx].sg_set |= SG_TERM;
/*
* The "start" and "stop" arguments can be a literal escape
* sequence, or a comma separated list of terminal codes.
*/
if (STRNCMP(arg, "t_", 2) == 0)
{
off = 0;
buf[0] = 0;
while (arg[off] != NUL)
{
/* Isolate one termcap name */
for (len = 0; arg[off + len] &&
arg[off + len] != ','; ++len)
;
tname = vim_strnsave(arg + off, len);
if (tname == NULL) /* out of memory */
{
error = TRUE;
break;
}
/* lookup the escape sequence for the item */
p = get_term_code(tname);
vim_free(tname);
if (p == NULL) /* ignore non-existing things */
p = (char_u *)"";
/* Append it to the already found stuff */
if ((int)(STRLEN(buf) + STRLEN(p)) >= 99)
{
EMSG2(_("E422: terminal code too long: %s"), arg);
error = TRUE;
break;
}
STRCAT(buf, p);
/* Advance to the next item */
off += len;
if (arg[off] == ',') /* another one follows */
++off;
}
}
else
{
/*
* Copy characters from arg[] to buf[], translating <> codes.
*/
for (p = arg, off = 0; off < 100 && *p; )
{
len = trans_special(&p, buf + off, FALSE);
if (len) /* recognized special char */
off += len;
else /* copy as normal char */
buf[off++] = *p++;
}
buf[off] = NUL;
}
if (error)
break;
if (STRCMP(buf, "NONE") == 0) /* resetting the value */
p = NULL;
else
p = vim_strsave(buf);
if (key[2] == 'A')
{
vim_free(HL_TABLE()[idx].sg_start);
HL_TABLE()[idx].sg_start = p;
}
else
{
vim_free(HL_TABLE()[idx].sg_stop);
HL_TABLE()[idx].sg_stop = p;
}
}
else
{
EMSG2(_("E423: Illegal argument: %s"), key_start);
error = TRUE;
break;
}
/*
* When highlighting has been given for a group, don't link it.
*/
if (!init || !(HL_TABLE()[idx].sg_set & SG_LINK))
HL_TABLE()[idx].sg_link = 0;
/*
* Continue with next argument.
*/
linep = skipwhite(linep);
}
/*
* If there is an error, and it's a new entry, remove it from the table.
*/
if (error && idx == highlight_ga.ga_len)
syn_unadd_group();
else
{
if (is_normal_group)
{
HL_TABLE()[idx].sg_term_attr = 0;
HL_TABLE()[idx].sg_cterm_attr = 0;
#ifdef FEAT_GUI
HL_TABLE()[idx].sg_gui_attr = 0;
/*
* Need to update all groups, because they might be using "bg"
* and/or "fg", which have been changed now.
*/
if (gui.in_use)
highlight_gui_started();
#endif
}
#ifdef FEAT_GUI_X11
# ifdef FEAT_MENU
else if (is_menu_group)
{
if (gui.in_use && do_colors)
gui_mch_new_menu_colors();
}
# endif
else if (is_scrollbar_group)
{
if (gui.in_use && do_colors)
gui_new_scrollbar_colors();
}
# ifdef FEAT_BEVAL
else if (is_tooltip_group)
{
if (gui.in_use && do_colors)
gui_mch_new_tooltip_colors();
}
# endif
#endif
else
set_hl_attr(idx);
#ifdef FEAT_EVAL
HL_TABLE()[idx].sg_scriptID = current_SID;
#endif
redraw_all_later(NOT_VALID);
}
vim_free(key);
vim_free(arg);
/* Only call highlight_changed() once, after sourcing a syntax file */
need_highlight_changed = TRUE;
}
#if defined(EXITFREE) || defined(PROTO)
void
free_highlight()
{
int i;
for (i = 0; i < highlight_ga.ga_len; ++i)
{
highlight_clear(i);
vim_free(HL_TABLE()[i].sg_name);
vim_free(HL_TABLE()[i].sg_name_u);
}
ga_clear(&highlight_ga);
}
#endif
/*
* Reset the cterm colors to what they were before Vim was started, if
* possible. Otherwise reset them to zero.
*/
void
restore_cterm_colors()
{
#if defined(MSDOS) || (defined(WIN3264) && !defined(FEAT_GUI_W32)) || defined(PLAN9)
/* Since t_me has been set, this probably means that the user
* wants to use this as default colors. Need to reset default
* background/foreground colors. */
mch_set_normal_colors();
#else
cterm_normal_fg_color = 0;
cterm_normal_fg_bold = 0;
cterm_normal_bg_color = 0;
#endif
}
/*
* Return TRUE if highlight group "idx" has any settings.
* When "check_link" is TRUE also check for an existing link.
*/
static int
hl_has_settings(idx, check_link)
int idx;
int check_link;
{
return ( HL_TABLE()[idx].sg_term_attr != 0
|| HL_TABLE()[idx].sg_cterm_attr != 0
#ifdef FEAT_GUI
|| HL_TABLE()[idx].sg_gui_attr != 0
#endif
|| (check_link && (HL_TABLE()[idx].sg_set & SG_LINK)));
}
/*
* Clear highlighting for one group.
*/
static void
highlight_clear(idx)
int idx;
{
HL_TABLE()[idx].sg_term = 0;
vim_free(HL_TABLE()[idx].sg_start);
HL_TABLE()[idx].sg_start = NULL;
vim_free(HL_TABLE()[idx].sg_stop);
HL_TABLE()[idx].sg_stop = NULL;
HL_TABLE()[idx].sg_term_attr = 0;
HL_TABLE()[idx].sg_cterm = 0;
HL_TABLE()[idx].sg_cterm_bold = FALSE;
HL_TABLE()[idx].sg_cterm_fg = 0;
HL_TABLE()[idx].sg_cterm_bg = 0;
HL_TABLE()[idx].sg_cterm_attr = 0;
#ifdef FEAT_GUI /* in non-GUI fonts are simply ignored */
HL_TABLE()[idx].sg_gui = 0;
HL_TABLE()[idx].sg_gui_fg = INVALCOLOR;
vim_free(HL_TABLE()[idx].sg_gui_fg_name);
HL_TABLE()[idx].sg_gui_fg_name = NULL;
HL_TABLE()[idx].sg_gui_bg = INVALCOLOR;
vim_free(HL_TABLE()[idx].sg_gui_bg_name);
HL_TABLE()[idx].sg_gui_bg_name = NULL;
HL_TABLE()[idx].sg_gui_sp = INVALCOLOR;
vim_free(HL_TABLE()[idx].sg_gui_sp_name);
HL_TABLE()[idx].sg_gui_sp_name = NULL;
gui_mch_free_font(HL_TABLE()[idx].sg_font);
HL_TABLE()[idx].sg_font = NOFONT;
# ifdef FEAT_XFONTSET
gui_mch_free_fontset(HL_TABLE()[idx].sg_fontset);
HL_TABLE()[idx].sg_fontset = NOFONTSET;
# endif
vim_free(HL_TABLE()[idx].sg_font_name);
HL_TABLE()[idx].sg_font_name = NULL;
HL_TABLE()[idx].sg_gui_attr = 0;
#endif
#ifdef FEAT_EVAL
/* Clear the script ID only when there is no link, since that is not
* cleared. */
if (HL_TABLE()[idx].sg_link == 0)
HL_TABLE()[idx].sg_scriptID = 0;
#endif
}
#if defined(FEAT_GUI) || defined(PROTO)
/*
* Set the normal foreground and background colors according to the "Normal"
* highlighighting group. For X11 also set "Menu", "Scrollbar", and
* "Tooltip" colors.
*/
void
set_normal_colors()
{
if (set_group_colors((char_u *)"Normal",
&gui.norm_pixel, &gui.back_pixel,
FALSE, TRUE, FALSE))
{
gui_mch_new_colors();
must_redraw = CLEAR;
}
#ifdef FEAT_GUI_X11
if (set_group_colors((char_u *)"Menu",
&gui.menu_fg_pixel, &gui.menu_bg_pixel,
TRUE, FALSE, FALSE))
{
# ifdef FEAT_MENU
gui_mch_new_menu_colors();
# endif
must_redraw = CLEAR;
}
# ifdef FEAT_BEVAL
if (set_group_colors((char_u *)"Tooltip",
&gui.tooltip_fg_pixel, &gui.tooltip_bg_pixel,
FALSE, FALSE, TRUE))
{
# ifdef FEAT_TOOLBAR
gui_mch_new_tooltip_colors();
# endif
must_redraw = CLEAR;
}
#endif
if (set_group_colors((char_u *)"Scrollbar",
&gui.scroll_fg_pixel, &gui.scroll_bg_pixel,
FALSE, FALSE, FALSE))
{
gui_new_scrollbar_colors();
must_redraw = CLEAR;
}
#endif
}
/*
* Set the colors for "Normal", "Menu", "Tooltip" or "Scrollbar".
*/
static int
set_group_colors(name, fgp, bgp, do_menu, use_norm, do_tooltip)
char_u *name;
guicolor_T *fgp;
guicolor_T *bgp;
int do_menu;
int use_norm;
int do_tooltip;
{
int idx;
idx = syn_name2id(name) - 1;
if (idx >= 0)
{
gui_do_one_color(idx, do_menu, do_tooltip);
if (HL_TABLE()[idx].sg_gui_fg != INVALCOLOR)
*fgp = HL_TABLE()[idx].sg_gui_fg;
else if (use_norm)
*fgp = gui.def_norm_pixel;
if (HL_TABLE()[idx].sg_gui_bg != INVALCOLOR)
*bgp = HL_TABLE()[idx].sg_gui_bg;
else if (use_norm)
*bgp = gui.def_back_pixel;
return TRUE;
}
return FALSE;
}
/*
* Get the font of the "Normal" group.
* Returns "" when it's not found or not set.
*/
char_u *
hl_get_font_name()
{
int id;
char_u *s;
id = syn_name2id((char_u *)"Normal");
if (id > 0)
{
s = HL_TABLE()[id - 1].sg_font_name;
if (s != NULL)
return s;
}
return (char_u *)"";
}
/*
* Set font for "Normal" group. Called by gui_mch_init_font() when a font has
* actually chosen to be used.
*/
void
hl_set_font_name(font_name)
char_u *font_name;
{
int id;
id = syn_name2id((char_u *)"Normal");
if (id > 0)
{
vim_free(HL_TABLE()[id - 1].sg_font_name);
HL_TABLE()[id - 1].sg_font_name = vim_strsave(font_name);
}
}
/*
* Set background color for "Normal" group. Called by gui_set_bg_color()
* when the color is known.
*/
void
hl_set_bg_color_name(name)
char_u *name; /* must have been allocated */
{
int id;
if (name != NULL)
{
id = syn_name2id((char_u *)"Normal");
if (id > 0)
{
vim_free(HL_TABLE()[id - 1].sg_gui_bg_name);
HL_TABLE()[id - 1].sg_gui_bg_name = name;
}
}
}
/*
* Set foreground color for "Normal" group. Called by gui_set_fg_color()
* when the color is known.
*/
void
hl_set_fg_color_name(name)
char_u *name; /* must have been allocated */
{
int id;
if (name != NULL)
{
id = syn_name2id((char_u *)"Normal");
if (id > 0)
{
vim_free(HL_TABLE()[id - 1].sg_gui_fg_name);
HL_TABLE()[id - 1].sg_gui_fg_name = name;
}
}
}
/*
* Return the handle for a color name.
* Returns INVALCOLOR when failed.
*/
static guicolor_T
color_name2handle(name)
char_u *name;
{
if (STRCMP(name, "NONE") == 0)
return INVALCOLOR;
if (STRICMP(name, "fg") == 0 || STRICMP(name, "foreground") == 0)
return gui.norm_pixel;
if (STRICMP(name, "bg") == 0 || STRICMP(name, "background") == 0)
return gui.back_pixel;
return gui_get_color(name);
}
/*
* Return the handle for a font name.
* Returns NOFONT when failed.
*/
static GuiFont
font_name2handle(name)
char_u *name;
{
if (STRCMP(name, "NONE") == 0)
return NOFONT;
return gui_mch_get_font(name, TRUE);
}
# ifdef FEAT_XFONTSET
/*
* Return the handle for a fontset name.
* Returns NOFONTSET when failed.
*/
static GuiFontset
fontset_name2handle(name, fixed_width)
char_u *name;
int fixed_width;
{
if (STRCMP(name, "NONE") == 0)
return NOFONTSET;
return gui_mch_get_fontset(name, TRUE, fixed_width);
}
# endif
/*
* Get the font or fontset for one highlight group.
*/
/*ARGSUSED*/
static void
hl_do_font(idx, arg, do_normal, do_menu, do_tooltip)
int idx;
char_u *arg;
int do_normal; /* set normal font */
int do_menu; /* set menu font */
int do_tooltip; /* set tooltip font */
{
# ifdef FEAT_XFONTSET
/* If 'guifontset' is not empty, first try using the name as a
* fontset. If that doesn't work, use it as a font name. */
if (*p_guifontset != NUL
# ifdef FONTSET_ALWAYS
|| do_menu
# endif
# ifdef FEAT_BEVAL_TIP
/* In Athena & Motif, the Tooltip highlight group is always a fontset */
|| do_tooltip
# endif
)
HL_TABLE()[idx].sg_fontset = fontset_name2handle(arg, 0
# ifdef FONTSET_ALWAYS
|| do_menu
# endif
# ifdef FEAT_BEVAL_TIP
|| do_tooltip
# endif
);
if (HL_TABLE()[idx].sg_fontset != NOFONTSET)
{
/* If it worked and it's the Normal group, use it as the
* normal fontset. Same for the Menu group. */
if (do_normal)
gui_init_font(arg, TRUE);
# if (defined(FEAT_GUI_MOTIF) || defined(FEAT_GUI_ATHENA)) && defined(FEAT_MENU)
if (do_menu)
{
# ifdef FONTSET_ALWAYS
gui.menu_fontset = HL_TABLE()[idx].sg_fontset;
# else
/* YIKES! This is a bug waiting to crash the program */
gui.menu_font = HL_TABLE()[idx].sg_fontset;
# endif
gui_mch_new_menu_font();
}
# ifdef FEAT_BEVAL
if (do_tooltip)
{
/* The Athena widget set cannot currently handle switching between
* displaying a single font and a fontset.
* If the XtNinternational resource is set to True at widget
* creation, then a fontset is always used, otherwise an
* XFontStruct is used.
*/
gui.tooltip_fontset = (XFontSet)HL_TABLE()[idx].sg_fontset;
gui_mch_new_tooltip_font();
}
# endif
# endif
}
else
# endif
{
HL_TABLE()[idx].sg_font = font_name2handle(arg);
/* If it worked and it's the Normal group, use it as the
* normal font. Same for the Menu group. */
if (HL_TABLE()[idx].sg_font != NOFONT)
{
if (do_normal)
gui_init_font(arg, FALSE);
#ifndef FONTSET_ALWAYS
# if (defined(FEAT_GUI_MOTIF) || defined(FEAT_GUI_ATHENA)) && defined(FEAT_MENU)
if (do_menu)
{
gui.menu_font = HL_TABLE()[idx].sg_font;
gui_mch_new_menu_font();
}
# endif
#endif
}
}
}
#endif /* FEAT_GUI */
/*
* Table with the specifications for an attribute number.
* Note that this table is used by ALL buffers. This is required because the
* GUI can redraw at any time for any buffer.
*/
static garray_T term_attr_table = {0, 0, 0, 0, NULL};
#define TERM_ATTR_ENTRY(idx) ((attrentry_T *)term_attr_table.ga_data)[idx]
static garray_T cterm_attr_table = {0, 0, 0, 0, NULL};
#define CTERM_ATTR_ENTRY(idx) ((attrentry_T *)cterm_attr_table.ga_data)[idx]
#ifdef FEAT_GUI
static garray_T gui_attr_table = {0, 0, 0, 0, NULL};
#define GUI_ATTR_ENTRY(idx) ((attrentry_T *)gui_attr_table.ga_data)[idx]
#endif
/*
* Return the attr number for a set of colors and font.
* Add a new entry to the term_attr_table, cterm_attr_table or gui_attr_table
* if the combination is new.
* Return 0 for error (no more room).
*/
static int
get_attr_entry(table, aep)
garray_T *table;
attrentry_T *aep;
{
int i;
attrentry_T *taep;
static int recursive = FALSE;
/*
* Init the table, in case it wasn't done yet.
*/
table->ga_itemsize = sizeof(attrentry_T);
table->ga_growsize = 7;
/*
* Try to find an entry with the same specifications.
*/
for (i = 0; i < table->ga_len; ++i)
{
taep = &(((attrentry_T *)table->ga_data)[i]);
if ( aep->ae_attr == taep->ae_attr
&& (
#ifdef FEAT_GUI
(table == &gui_attr_table
&& (aep->ae_u.gui.fg_color == taep->ae_u.gui.fg_color
&& aep->ae_u.gui.bg_color
== taep->ae_u.gui.bg_color
&& aep->ae_u.gui.sp_color
== taep->ae_u.gui.sp_color
&& aep->ae_u.gui.font == taep->ae_u.gui.font
# ifdef FEAT_XFONTSET
&& aep->ae_u.gui.fontset == taep->ae_u.gui.fontset
# endif
))
||
#endif
(table == &term_attr_table
&& (aep->ae_u.term.start == NULL)
== (taep->ae_u.term.start == NULL)
&& (aep->ae_u.term.start == NULL
|| STRCMP(aep->ae_u.term.start,
taep->ae_u.term.start) == 0)
&& (aep->ae_u.term.stop == NULL)
== (taep->ae_u.term.stop == NULL)
&& (aep->ae_u.term.stop == NULL
|| STRCMP(aep->ae_u.term.stop,
taep->ae_u.term.stop) == 0))
|| (table == &cterm_attr_table
&& aep->ae_u.cterm.fg_color
== taep->ae_u.cterm.fg_color
&& aep->ae_u.cterm.bg_color
== taep->ae_u.cterm.bg_color)
))
return i + ATTR_OFF;
}
if (table->ga_len + ATTR_OFF > MAX_TYPENR)
{
/*
* Running out of attribute entries! remove all attributes, and
* compute new ones for all groups.
* When called recursively, we are really out of numbers.
*/
if (recursive)
{
EMSG(_("E424: Too many different highlighting attributes in use"));
return 0;
}
recursive = TRUE;
clear_hl_tables();
must_redraw = CLEAR;
for (i = 0; i < highlight_ga.ga_len; ++i)
set_hl_attr(i);
recursive = FALSE;
}
/*
* This is a new combination of colors and font, add an entry.
*/
if (ga_grow(table, 1) == FAIL)
return 0;
taep = &(((attrentry_T *)table->ga_data)[table->ga_len]);
vim_memset(taep, 0, sizeof(attrentry_T));
taep->ae_attr = aep->ae_attr;
#ifdef FEAT_GUI
if (table == &gui_attr_table)
{
taep->ae_u.gui.fg_color = aep->ae_u.gui.fg_color;
taep->ae_u.gui.bg_color = aep->ae_u.gui.bg_color;
taep->ae_u.gui.sp_color = aep->ae_u.gui.sp_color;
taep->ae_u.gui.font = aep->ae_u.gui.font;
# ifdef FEAT_XFONTSET
taep->ae_u.gui.fontset = aep->ae_u.gui.fontset;
# endif
}
#endif
if (table == &term_attr_table)
{
if (aep->ae_u.term.start == NULL)
taep->ae_u.term.start = NULL;
else
taep->ae_u.term.start = vim_strsave(aep->ae_u.term.start);
if (aep->ae_u.term.stop == NULL)
taep->ae_u.term.stop = NULL;
else
taep->ae_u.term.stop = vim_strsave(aep->ae_u.term.stop);
}
else if (table == &cterm_attr_table)
{
taep->ae_u.cterm.fg_color = aep->ae_u.cterm.fg_color;
taep->ae_u.cterm.bg_color = aep->ae_u.cterm.bg_color;
}
++table->ga_len;
return (table->ga_len - 1 + ATTR_OFF);
}
/*
* Clear all highlight tables.
*/
void
clear_hl_tables()
{
int i;
attrentry_T *taep;
#ifdef FEAT_GUI
ga_clear(&gui_attr_table);
#endif
for (i = 0; i < term_attr_table.ga_len; ++i)
{
taep = &(((attrentry_T *)term_attr_table.ga_data)[i]);
vim_free(taep->ae_u.term.start);
vim_free(taep->ae_u.term.stop);
}
ga_clear(&term_attr_table);
ga_clear(&cterm_attr_table);
}
#if defined(FEAT_SYN_HL) || defined(FEAT_SPELL) || defined(PROTO)
/*
* Combine special attributes (e.g., for spelling) with other attributes
* (e.g., for syntax highlighting).
* "prim_attr" overrules "char_attr".
* This creates a new group when required.
* Since we expect there to be few spelling mistakes we don't cache the
* result.
* Return the resulting attributes.
*/
int
hl_combine_attr(char_attr, prim_attr)
int char_attr;
int prim_attr;
{
attrentry_T *char_aep = NULL;
attrentry_T *spell_aep;
attrentry_T new_en;
if (char_attr == 0)
return prim_attr;
if (char_attr <= HL_ALL && prim_attr <= HL_ALL)
return char_attr | prim_attr;
#ifdef FEAT_GUI
if (gui.in_use)
{
if (char_attr > HL_ALL)
char_aep = syn_gui_attr2entry(char_attr);
if (char_aep != NULL)
new_en = *char_aep;
else
{
vim_memset(&new_en, 0, sizeof(new_en));
new_en.ae_u.gui.fg_color = INVALCOLOR;
new_en.ae_u.gui.bg_color = INVALCOLOR;
new_en.ae_u.gui.sp_color = INVALCOLOR;
if (char_attr <= HL_ALL)
new_en.ae_attr = char_attr;
}
if (prim_attr <= HL_ALL)
new_en.ae_attr |= prim_attr;
else
{
spell_aep = syn_gui_attr2entry(prim_attr);
if (spell_aep != NULL)
{
new_en.ae_attr |= spell_aep->ae_attr;
if (spell_aep->ae_u.gui.fg_color != INVALCOLOR)
new_en.ae_u.gui.fg_color = spell_aep->ae_u.gui.fg_color;
if (spell_aep->ae_u.gui.bg_color != INVALCOLOR)
new_en.ae_u.gui.bg_color = spell_aep->ae_u.gui.bg_color;
if (spell_aep->ae_u.gui.sp_color != INVALCOLOR)
new_en.ae_u.gui.sp_color = spell_aep->ae_u.gui.sp_color;
if (spell_aep->ae_u.gui.font != NOFONT)
new_en.ae_u.gui.font = spell_aep->ae_u.gui.font;
# ifdef FEAT_XFONTSET
if (spell_aep->ae_u.gui.fontset != NOFONTSET)
new_en.ae_u.gui.fontset = spell_aep->ae_u.gui.fontset;
# endif
}
}
return get_attr_entry(&gui_attr_table, &new_en);
}
#endif
if (t_colors > 1)
{
if (char_attr > HL_ALL)
char_aep = syn_cterm_attr2entry(char_attr);
if (char_aep != NULL)
new_en = *char_aep;
else
{
vim_memset(&new_en, 0, sizeof(new_en));
if (char_attr <= HL_ALL)
new_en.ae_attr = char_attr;
}
if (prim_attr <= HL_ALL)
new_en.ae_attr |= prim_attr;
else
{
spell_aep = syn_cterm_attr2entry(prim_attr);
if (spell_aep != NULL)
{
new_en.ae_attr |= spell_aep->ae_attr;
if (spell_aep->ae_u.cterm.fg_color > 0)
new_en.ae_u.cterm.fg_color = spell_aep->ae_u.cterm.fg_color;
if (spell_aep->ae_u.cterm.bg_color > 0)
new_en.ae_u.cterm.bg_color = spell_aep->ae_u.cterm.bg_color;
}
}
return get_attr_entry(&cterm_attr_table, &new_en);
}
if (char_attr > HL_ALL)
char_aep = syn_term_attr2entry(char_attr);
if (char_aep != NULL)
new_en = *char_aep;
else
{
vim_memset(&new_en, 0, sizeof(new_en));
if (char_attr <= HL_ALL)
new_en.ae_attr = char_attr;
}
if (prim_attr <= HL_ALL)
new_en.ae_attr |= prim_attr;
else
{
spell_aep = syn_term_attr2entry(prim_attr);
if (spell_aep != NULL)
{
new_en.ae_attr |= spell_aep->ae_attr;
if (spell_aep->ae_u.term.start != NULL)
{
new_en.ae_u.term.start = spell_aep->ae_u.term.start;
new_en.ae_u.term.stop = spell_aep->ae_u.term.stop;
}
}
}
return get_attr_entry(&term_attr_table, &new_en);
}
#endif
#ifdef FEAT_GUI
attrentry_T *
syn_gui_attr2entry(attr)
int attr;
{
attr -= ATTR_OFF;
if (attr >= gui_attr_table.ga_len) /* did ":syntax clear" */
return NULL;
return &(GUI_ATTR_ENTRY(attr));
}
#endif /* FEAT_GUI */
/*
* Get the highlight attributes (HL_BOLD etc.) from an attribute nr.
* Only to be used when "attr" > HL_ALL.
*/
int
syn_attr2attr(attr)
int attr;
{
attrentry_T *aep;
#ifdef FEAT_GUI
if (gui.in_use)
aep = syn_gui_attr2entry(attr);
else
#endif
if (t_colors > 1)
aep = syn_cterm_attr2entry(attr);
else
aep = syn_term_attr2entry(attr);
if (aep == NULL) /* highlighting not set */
return 0;
return aep->ae_attr;
}
attrentry_T *
syn_term_attr2entry(attr)
int attr;
{
attr -= ATTR_OFF;
if (attr >= term_attr_table.ga_len) /* did ":syntax clear" */
return NULL;
return &(TERM_ATTR_ENTRY(attr));
}
attrentry_T *
syn_cterm_attr2entry(attr)
int attr;
{
attr -= ATTR_OFF;
if (attr >= cterm_attr_table.ga_len) /* did ":syntax clear" */
return NULL;
return &(CTERM_ATTR_ENTRY(attr));
}
#define LIST_ATTR 1
#define LIST_STRING 2
#define LIST_INT 3
static void
highlight_list_one(id)
int id;
{
struct hl_group *sgp;
int didh = FALSE;
sgp = &HL_TABLE()[id - 1]; /* index is ID minus one */
didh = highlight_list_arg(id, didh, LIST_ATTR,
sgp->sg_term, NULL, "term");
didh = highlight_list_arg(id, didh, LIST_STRING,
0, sgp->sg_start, "start");
didh = highlight_list_arg(id, didh, LIST_STRING,
0, sgp->sg_stop, "stop");
didh = highlight_list_arg(id, didh, LIST_ATTR,
sgp->sg_cterm, NULL, "cterm");
didh = highlight_list_arg(id, didh, LIST_INT,
sgp->sg_cterm_fg, NULL, "ctermfg");
didh = highlight_list_arg(id, didh, LIST_INT,
sgp->sg_cterm_bg, NULL, "ctermbg");
#ifdef FEAT_GUI
didh = highlight_list_arg(id, didh, LIST_ATTR,
sgp->sg_gui, NULL, "gui");
didh = highlight_list_arg(id, didh, LIST_STRING,
0, sgp->sg_gui_fg_name, "guifg");
didh = highlight_list_arg(id, didh, LIST_STRING,
0, sgp->sg_gui_bg_name, "guibg");
didh = highlight_list_arg(id, didh, LIST_STRING,
0, sgp->sg_gui_sp_name, "guisp");
didh = highlight_list_arg(id, didh, LIST_STRING,
0, sgp->sg_font_name, "font");
#endif
if (sgp->sg_link && !got_int)
{
(void)syn_list_header(didh, 9999, id);
didh = TRUE;
msg_puts_attr((char_u *)"links to", hl_attr(HLF_D));
msg_putchar(' ');
msg_outtrans(HL_TABLE()[HL_TABLE()[id - 1].sg_link - 1].sg_name);
}
if (!didh)
highlight_list_arg(id, didh, LIST_STRING, 0, (char_u *)"cleared", "");
#ifdef FEAT_EVAL
if (p_verbose > 0)
last_set_msg(sgp->sg_scriptID);
#endif
}
static int
highlight_list_arg(id, didh, type, iarg, sarg, name)
int id;
int didh;
int type;
int iarg;
char_u *sarg;
char *name;
{
char_u buf[100];
char_u *ts;
int i;
if (got_int)
return FALSE;
if (type == LIST_STRING ? (sarg != NULL) : (iarg != 0))
{
ts = buf;
if (type == LIST_INT)
sprintf((char *)buf, "%d", iarg - 1);
else if (type == LIST_STRING)
ts = sarg;
else /* type == LIST_ATTR */
{
buf[0] = NUL;
for (i = 0; hl_attr_table[i] != 0; ++i)
{
if (iarg & hl_attr_table[i])
{
if (buf[0] != NUL)
STRCAT(buf, ",");
STRCAT(buf, hl_name_table[i]);
iarg &= ~hl_attr_table[i]; /* don't want "inverse" */
}
}
}
(void)syn_list_header(didh,
(int)(vim_strsize(ts) + STRLEN(name) + 1), id);
didh = TRUE;
if (!got_int)
{
if (*name != NUL)
{
MSG_PUTS_ATTR(name, hl_attr(HLF_D));
MSG_PUTS_ATTR("=", hl_attr(HLF_D));
}
msg_outtrans(ts);
}
}
return didh;
}
#if (((defined(FEAT_EVAL) || defined(FEAT_PRINTER))) && defined(FEAT_SYN_HL)) || defined(PROTO)
/*
* Return "1" if highlight group "id" has attribute "flag".
* Return NULL otherwise.
*/
char_u *
highlight_has_attr(id, flag, modec)
int id;
int flag;
int modec; /* 'g' for GUI, 'c' for cterm, 't' for term */
{
int attr;
if (id <= 0 || id > highlight_ga.ga_len)
return NULL;
#ifdef FEAT_GUI
if (modec == 'g')
attr = HL_TABLE()[id - 1].sg_gui;
else
#endif
if (modec == 'c')
attr = HL_TABLE()[id - 1].sg_cterm;
else
attr = HL_TABLE()[id - 1].sg_term;
if (attr & flag)
return (char_u *)"1";
return NULL;
}
#endif
#if (defined(FEAT_SYN_HL) && defined(FEAT_EVAL)) || defined(PROTO)
/*
* Return color name of highlight group "id".
*/
char_u *
highlight_color(id, what, modec)
int id;
char_u *what; /* "fg", "bg", "sp", "fg#", "bg#" or "sp#" */
int modec; /* 'g' for GUI, 'c' for cterm, 't' for term */
{
static char_u name[20];
int n;
int fg = FALSE;
# ifdef FEAT_GUI
int sp = FALSE;
# endif
if (id <= 0 || id > highlight_ga.ga_len)
return NULL;
if (TOLOWER_ASC(what[0]) == 'f')
fg = TRUE;
# ifdef FEAT_GUI
else if (TOLOWER_ASC(what[0]) == 's')
sp = TRUE;
if (modec == 'g')
{
/* return #RRGGBB form (only possible when GUI is running) */
if (gui.in_use && what[1] && what[2] == '#')
{
guicolor_T color;
long_u rgb;
static char_u buf[10];
if (fg)
color = HL_TABLE()[id - 1].sg_gui_fg;
else if (sp)
color = HL_TABLE()[id - 1].sg_gui_sp;
else
color = HL_TABLE()[id - 1].sg_gui_bg;
if (color == INVALCOLOR)
return NULL;
rgb = gui_mch_get_rgb(color);
sprintf((char *)buf, "#%02x%02x%02x",
(unsigned)(rgb >> 16),
(unsigned)(rgb >> 8) & 255,
(unsigned)rgb & 255);
return buf;
}
if (fg)
return (HL_TABLE()[id - 1].sg_gui_fg_name);
if (sp)
return (HL_TABLE()[id - 1].sg_gui_sp_name);
return (HL_TABLE()[id - 1].sg_gui_bg_name);
}
# endif
if (modec == 'c')
{
if (fg)
n = HL_TABLE()[id - 1].sg_cterm_fg - 1;
else
n = HL_TABLE()[id - 1].sg_cterm_bg - 1;
sprintf((char *)name, "%d", n);
return name;
}
/* term doesn't have color */
return NULL;
}
#endif
#if (defined(FEAT_SYN_HL) && defined(FEAT_GUI) && defined(FEAT_PRINTER)) \
|| defined(PROTO)
/*
* Return color name of highlight group "id" as RGB value.
*/
long_u
highlight_gui_color_rgb(id, fg)
int id;
int fg; /* TRUE = fg, FALSE = bg */
{
guicolor_T color;
if (id <= 0 || id > highlight_ga.ga_len)
return 0L;
if (fg)
color = HL_TABLE()[id - 1].sg_gui_fg;
else
color = HL_TABLE()[id - 1].sg_gui_bg;
if (color == INVALCOLOR)
return 0L;
return gui_mch_get_rgb(color);
}
#endif
/*
* Output the syntax list header.
* Return TRUE when started a new line.
*/
static int
syn_list_header(did_header, outlen, id)
int did_header; /* did header already */
int outlen; /* length of string that comes */
int id; /* highlight group id */
{
int endcol = 19;
int newline = TRUE;
if (!did_header)
{
msg_putchar('\n');
if (got_int)
return TRUE;
msg_outtrans(HL_TABLE()[id - 1].sg_name);
endcol = 15;
}
else if (msg_col + outlen + 1 >= Columns)
{
msg_putchar('\n');
if (got_int)
return TRUE;
}
else
{
if (msg_col >= endcol) /* wrap around is like starting a new line */
newline = FALSE;
}
if (msg_col >= endcol) /* output at least one space */
endcol = msg_col + 1;
if (Columns <= endcol) /* avoid hang for tiny window */
endcol = Columns - 1;
msg_advance(endcol);
/* Show "xxx" with the attributes. */
if (!did_header)
{
msg_puts_attr((char_u *)"xxx", syn_id2attr(id));
msg_putchar(' ');
}
return newline;
}
/*
* Set the attribute numbers for a highlight group.
* Called after one of the attributes has changed.
*/
static void
set_hl_attr(idx)
int idx; /* index in array */
{
attrentry_T at_en;
struct hl_group *sgp = HL_TABLE() + idx;
/* The "Normal" group doesn't need an attribute number */
if (sgp->sg_name_u != NULL && STRCMP(sgp->sg_name_u, "NORMAL") == 0)
return;
#ifdef FEAT_GUI
/*
* For the GUI mode: If there are other than "normal" highlighting
* attributes, need to allocate an attr number.
*/
if (sgp->sg_gui_fg == INVALCOLOR
&& sgp->sg_gui_bg == INVALCOLOR
&& sgp->sg_gui_sp == INVALCOLOR
&& sgp->sg_font == NOFONT
# ifdef FEAT_XFONTSET
&& sgp->sg_fontset == NOFONTSET
# endif
)
{
sgp->sg_gui_attr = sgp->sg_gui;
}
else
{
at_en.ae_attr = sgp->sg_gui;
at_en.ae_u.gui.fg_color = sgp->sg_gui_fg;
at_en.ae_u.gui.bg_color = sgp->sg_gui_bg;
at_en.ae_u.gui.sp_color = sgp->sg_gui_sp;
at_en.ae_u.gui.font = sgp->sg_font;
# ifdef FEAT_XFONTSET
at_en.ae_u.gui.fontset = sgp->sg_fontset;
# endif
sgp->sg_gui_attr = get_attr_entry(&gui_attr_table, &at_en);
}
#endif
/*
* For the term mode: If there are other than "normal" highlighting
* attributes, need to allocate an attr number.
*/
if (sgp->sg_start == NULL && sgp->sg_stop == NULL)
sgp->sg_term_attr = sgp->sg_term;
else
{
at_en.ae_attr = sgp->sg_term;
at_en.ae_u.term.start = sgp->sg_start;
at_en.ae_u.term.stop = sgp->sg_stop;
sgp->sg_term_attr = get_attr_entry(&term_attr_table, &at_en);
}
/*
* For the color term mode: If there are other than "normal"
* highlighting attributes, need to allocate an attr number.
*/
if (sgp->sg_cterm_fg == 0 && sgp->sg_cterm_bg == 0)
sgp->sg_cterm_attr = sgp->sg_cterm;
else
{
at_en.ae_attr = sgp->sg_cterm;
at_en.ae_u.cterm.fg_color = sgp->sg_cterm_fg;
at_en.ae_u.cterm.bg_color = sgp->sg_cterm_bg;
sgp->sg_cterm_attr = get_attr_entry(&cterm_attr_table, &at_en);
}
}
/*
* Lookup a highlight group name and return it's ID.
* If it is not found, 0 is returned.
*/
int
syn_name2id(name)
char_u *name;
{
int i;
char_u name_u[200];
/* Avoid using stricmp() too much, it's slow on some systems */
/* Avoid alloc()/free(), these are slow too. ID names over 200 chars
* don't deserve to be found! */
vim_strncpy(name_u, name, 199);
vim_strup(name_u);
for (i = highlight_ga.ga_len; --i >= 0; )
if (HL_TABLE()[i].sg_name_u != NULL
&& STRCMP(name_u, HL_TABLE()[i].sg_name_u) == 0)
break;
return i + 1;
}
#if defined(FEAT_EVAL) || defined(PROTO)
/*
* Return TRUE if highlight group "name" exists.
*/
int
highlight_exists(name)
char_u *name;
{
return (syn_name2id(name) > 0);
}
# if defined(FEAT_SEARCH_EXTRA) || defined(PROTO)
/*
* Return the name of highlight group "id".
* When not a valid ID return an empty string.
*/
char_u *
syn_id2name(id)
int id;
{
if (id <= 0 || id >= highlight_ga.ga_len)
return (char_u *)"";
return HL_TABLE()[id - 1].sg_name;
}
# endif
#endif
/*
* Like syn_name2id(), but take a pointer + length argument.
*/
int
syn_namen2id(linep, len)
char_u *linep;
int len;
{
char_u *name;
int id = 0;
name = vim_strnsave(linep, len);
if (name != NULL)
{
id = syn_name2id(name);
vim_free(name);
}
return id;
}
/*
* Find highlight group name in the table and return it's ID.
* The argument is a pointer to the name and the length of the name.
* If it doesn't exist yet, a new entry is created.
* Return 0 for failure.
*/
int
syn_check_group(pp, len)
char_u *pp;
int len;
{
int id;
char_u *name;
name = vim_strnsave(pp, len);
if (name == NULL)
return 0;
id = syn_name2id(name);
if (id == 0) /* doesn't exist yet */
id = syn_add_group(name);
else
vim_free(name);
return id;
}
/*
* Add new highlight group and return it's ID.
* "name" must be an allocated string, it will be consumed.
* Return 0 for failure.
*/
static int
syn_add_group(name)
char_u *name;
{
char_u *p;
/* Check that the name is ASCII letters, digits and underscore. */
for (p = name; *p != NUL; ++p)
{
if (!vim_isprintc(*p))
{
EMSG(_("E669: Unprintable character in group name"));
return 0;
}
else if (!ASCII_ISALNUM(*p) && *p != '_')
{
/* This is an error, but since there previously was no check only
* give a warning. */
msg_source(hl_attr(HLF_W));
MSG(_("W18: Invalid character in group name"));
break;
}
}
/*
* First call for this growarray: init growing array.
*/
if (highlight_ga.ga_data == NULL)
{
highlight_ga.ga_itemsize = sizeof(struct hl_group);
highlight_ga.ga_growsize = 10;
}
/*
* Make room for at least one other syntax_highlight entry.
*/
if (ga_grow(&highlight_ga, 1) == FAIL)
{
vim_free(name);
return 0;
}
vim_memset(&(HL_TABLE()[highlight_ga.ga_len]), 0, sizeof(struct hl_group));
HL_TABLE()[highlight_ga.ga_len].sg_name = name;
HL_TABLE()[highlight_ga.ga_len].sg_name_u = vim_strsave_up(name);
#ifdef FEAT_GUI
HL_TABLE()[highlight_ga.ga_len].sg_gui_bg = INVALCOLOR;
HL_TABLE()[highlight_ga.ga_len].sg_gui_fg = INVALCOLOR;
HL_TABLE()[highlight_ga.ga_len].sg_gui_sp = INVALCOLOR;
#endif
++highlight_ga.ga_len;
return highlight_ga.ga_len; /* ID is index plus one */
}
/*
* When, just after calling syn_add_group(), an error is discovered, this
* function deletes the new name.
*/
static void
syn_unadd_group()
{
--highlight_ga.ga_len;
vim_free(HL_TABLE()[highlight_ga.ga_len].sg_name);
vim_free(HL_TABLE()[highlight_ga.ga_len].sg_name_u);
}
/*
* Translate a group ID to highlight attributes.
*/
int
syn_id2attr(hl_id)
int hl_id;
{
int attr;
struct hl_group *sgp;
hl_id = syn_get_final_id(hl_id);
sgp = &HL_TABLE()[hl_id - 1]; /* index is ID minus one */
#ifdef FEAT_GUI
/*
* Only use GUI attr when the GUI is being used.
*/
if (gui.in_use)
attr = sgp->sg_gui_attr;
else
#endif
if (t_colors > 1)
attr = sgp->sg_cterm_attr;
else
attr = sgp->sg_term_attr;
return attr;
}
#ifdef FEAT_GUI
/*
* Get the GUI colors and attributes for a group ID.
* NOTE: the colors will be INVALCOLOR when not set, the color otherwise.
*/
int
syn_id2colors(hl_id, fgp, bgp)
int hl_id;
guicolor_T *fgp;
guicolor_T *bgp;
{
struct hl_group *sgp;
hl_id = syn_get_final_id(hl_id);
sgp = &HL_TABLE()[hl_id - 1]; /* index is ID minus one */
*fgp = sgp->sg_gui_fg;
*bgp = sgp->sg_gui_bg;
return sgp->sg_gui;
}
#endif
/*
* Translate a group ID to the final group ID (following links).
*/
int
syn_get_final_id(hl_id)
int hl_id;
{
int count;
struct hl_group *sgp;
if (hl_id > highlight_ga.ga_len || hl_id < 1)
return 0; /* Can be called from eval!! */
/*
* Follow links until there is no more.
* Look out for loops! Break after 100 links.
*/
for (count = 100; --count >= 0; )
{
sgp = &HL_TABLE()[hl_id - 1]; /* index is ID minus one */
if (sgp->sg_link == 0 || sgp->sg_link > highlight_ga.ga_len)
break;
hl_id = sgp->sg_link;
}
return hl_id;
}
#ifdef FEAT_GUI
/*
* Call this function just after the GUI has started.
* It finds the font and color handles for the highlighting groups.
*/
void
highlight_gui_started()
{
int idx;
/* First get the colors from the "Normal" and "Menu" group, if set */
set_normal_colors();
for (idx = 0; idx < highlight_ga.ga_len; ++idx)
gui_do_one_color(idx, FALSE, FALSE);
highlight_changed();
}
static void
gui_do_one_color(idx, do_menu, do_tooltip)
int idx;
int do_menu; /* TRUE: might set the menu font */
int do_tooltip; /* TRUE: might set the tooltip font */
{
int didit = FALSE;
if (HL_TABLE()[idx].sg_font_name != NULL)
{
hl_do_font(idx, HL_TABLE()[idx].sg_font_name, FALSE, do_menu,
do_tooltip);
didit = TRUE;
}
if (HL_TABLE()[idx].sg_gui_fg_name != NULL)
{
HL_TABLE()[idx].sg_gui_fg =
color_name2handle(HL_TABLE()[idx].sg_gui_fg_name);
didit = TRUE;
}
if (HL_TABLE()[idx].sg_gui_bg_name != NULL)
{
HL_TABLE()[idx].sg_gui_bg =
color_name2handle(HL_TABLE()[idx].sg_gui_bg_name);
didit = TRUE;
}
if (HL_TABLE()[idx].sg_gui_sp_name != NULL)
{
HL_TABLE()[idx].sg_gui_sp =
color_name2handle(HL_TABLE()[idx].sg_gui_sp_name);
didit = TRUE;
}
if (didit) /* need to get a new attr number */
set_hl_attr(idx);
}
#endif
/*
* Translate the 'highlight' option into attributes in highlight_attr[] and
* set up the user highlights User1..9. If FEAT_STL_OPT is in use, a set of
* corresponding highlights to use on top of HLF_SNC is computed.
* Called only when the 'highlight' option has been changed and upon first
* screen redraw after any :highlight command.
* Return FAIL when an invalid flag is found in 'highlight'. OK otherwise.
*/
int
highlight_changed()
{
int hlf;
int i;
char_u *p;
int attr;
char_u *end;
int id;
#ifdef USER_HIGHLIGHT
char_u userhl[10];
# ifdef FEAT_STL_OPT
int id_SNC = -1;
int id_S = -1;
int hlcnt;
# endif
#endif
static int hl_flags[HLF_COUNT] = HL_FLAGS;
need_highlight_changed = FALSE;
/*
* Clear all attributes.
*/
for (hlf = 0; hlf < (int)HLF_COUNT; ++hlf)
highlight_attr[hlf] = 0;
/*
* First set all attributes to their default value.
* Then use the attributes from the 'highlight' option.
*/
for (i = 0; i < 2; ++i)
{
if (i)
p = p_hl;
else
p = get_highlight_default();
if (p == NULL) /* just in case */
continue;
while (*p)
{
for (hlf = 0; hlf < (int)HLF_COUNT; ++hlf)
if (hl_flags[hlf] == *p)
break;
++p;
if (hlf == (int)HLF_COUNT || *p == NUL)
return FAIL;
/*
* Allow several hl_flags to be combined, like "bu" for
* bold-underlined.
*/
attr = 0;
for ( ; *p && *p != ','; ++p) /* parse upto comma */
{
if (vim_iswhite(*p)) /* ignore white space */
continue;
if (attr > HL_ALL) /* Combination with ':' is not allowed. */
return FAIL;
switch (*p)
{
case 'b': attr |= HL_BOLD;
break;
case 'i': attr |= HL_ITALIC;
break;
case '-':
case 'n': /* no highlighting */
break;
case 'r': attr |= HL_INVERSE;
break;
case 's': attr |= HL_STANDOUT;
break;
case 'u': attr |= HL_UNDERLINE;
break;
case 'c': attr |= HL_UNDERCURL;
break;
case ':': ++p; /* highlight group name */
if (attr || *p == NUL) /* no combinations */
return FAIL;
end = vim_strchr(p, ',');
if (end == NULL)
end = p + STRLEN(p);
id = syn_check_group(p, (int)(end - p));
if (id == 0)
return FAIL;
attr = syn_id2attr(id);
p = end - 1;
#if defined(FEAT_STL_OPT) && defined(USER_HIGHLIGHT)
if (hlf == (int)HLF_SNC)
id_SNC = syn_get_final_id(id);
else if (hlf == (int)HLF_S)
id_S = syn_get_final_id(id);
#endif
break;
default: return FAIL;
}
}
highlight_attr[hlf] = attr;
p = skip_to_option_part(p); /* skip comma and spaces */
}
}
#ifdef USER_HIGHLIGHT
/* Setup the user highlights
*
* Temporarily utilize 10 more hl entries. Have to be in there
* simultaneously in case of table overflows in get_attr_entry()
*/
# ifdef FEAT_STL_OPT
if (ga_grow(&highlight_ga, 10) == FAIL)
return FAIL;
hlcnt = highlight_ga.ga_len;
if (id_S == 0)
{ /* Make sure id_S is always valid to simplify code below */
memset(&HL_TABLE()[hlcnt + 9], 0, sizeof(struct hl_group));
HL_TABLE()[hlcnt + 9].sg_term = highlight_attr[HLF_S];
id_S = hlcnt + 10;
}
# endif
for (i = 0; i < 9; i++)
{
sprintf((char *)userhl, "User%d", i + 1);
id = syn_name2id(userhl);
if (id == 0)
{
highlight_user[i] = 0;
# ifdef FEAT_STL_OPT
highlight_stlnc[i] = 0;
# endif
}
else
{
# ifdef FEAT_STL_OPT
struct hl_group *hlt = HL_TABLE();
# endif
highlight_user[i] = syn_id2attr(id);
# ifdef FEAT_STL_OPT
if (id_SNC == 0)
{
memset(&hlt[hlcnt + i], 0, sizeof(struct hl_group));
hlt[hlcnt + i].sg_term = highlight_attr[HLF_SNC];
hlt[hlcnt + i].sg_cterm = highlight_attr[HLF_SNC];
# ifdef FEAT_GUI
hlt[hlcnt + i].sg_gui = highlight_attr[HLF_SNC];
# endif
}
else
mch_memmove(&hlt[hlcnt + i],
&hlt[id_SNC - 1],
sizeof(struct hl_group));
hlt[hlcnt + i].sg_link = 0;
/* Apply difference between UserX and HLF_S to HLF_SNC */
hlt[hlcnt + i].sg_term ^=
hlt[id - 1].sg_term ^ hlt[id_S - 1].sg_term;
if (hlt[id - 1].sg_start != hlt[id_S - 1].sg_start)
hlt[hlcnt + i].sg_start = hlt[id - 1].sg_start;
if (hlt[id - 1].sg_stop != hlt[id_S - 1].sg_stop)
hlt[hlcnt + i].sg_stop = hlt[id - 1].sg_stop;
hlt[hlcnt + i].sg_cterm ^=
hlt[id - 1].sg_cterm ^ hlt[id_S - 1].sg_cterm;
if (hlt[id - 1].sg_cterm_fg != hlt[id_S - 1].sg_cterm_fg)
hlt[hlcnt + i].sg_cterm_fg = hlt[id - 1].sg_cterm_fg;
if (hlt[id - 1].sg_cterm_bg != hlt[id_S - 1].sg_cterm_bg)
hlt[hlcnt + i].sg_cterm_bg = hlt[id - 1].sg_cterm_bg;
# ifdef FEAT_GUI
hlt[hlcnt + i].sg_gui ^=
hlt[id - 1].sg_gui ^ hlt[id_S - 1].sg_gui;
if (hlt[id - 1].sg_gui_fg != hlt[id_S - 1].sg_gui_fg)
hlt[hlcnt + i].sg_gui_fg = hlt[id - 1].sg_gui_fg;
if (hlt[id - 1].sg_gui_bg != hlt[id_S - 1].sg_gui_bg)
hlt[hlcnt + i].sg_gui_bg = hlt[id - 1].sg_gui_bg;
if (hlt[id - 1].sg_gui_sp != hlt[id_S - 1].sg_gui_sp)
hlt[hlcnt + i].sg_gui_sp = hlt[id - 1].sg_gui_sp;
if (hlt[id - 1].sg_font != hlt[id_S - 1].sg_font)
hlt[hlcnt + i].sg_font = hlt[id - 1].sg_font;
# ifdef FEAT_XFONTSET
if (hlt[id - 1].sg_fontset != hlt[id_S - 1].sg_fontset)
hlt[hlcnt + i].sg_fontset = hlt[id - 1].sg_fontset;
# endif
# endif
highlight_ga.ga_len = hlcnt + i + 1;
set_hl_attr(hlcnt + i); /* At long last we can apply */
highlight_stlnc[i] = syn_id2attr(hlcnt + i + 1);
# endif
}
}
# ifdef FEAT_STL_OPT
highlight_ga.ga_len = hlcnt;
# endif
#endif /* USER_HIGHLIGHT */
return OK;
}
#ifdef FEAT_CMDL_COMPL
static void highlight_list __ARGS((void));
static void highlight_list_two __ARGS((int cnt, int attr));
/*
* Handle command line completion for :highlight command.
*/
void
set_context_in_highlight_cmd(xp, arg)
expand_T *xp;
char_u *arg;
{
char_u *p;
/* Default: expand group names */
xp->xp_context = EXPAND_HIGHLIGHT;
xp->xp_pattern = arg;
include_link = TRUE;
include_default = TRUE;
/* (part of) subcommand already typed */
if (*arg != NUL)
{
p = skiptowhite(arg);
if (*p != NUL) /* past "default" or group name */
{
include_default = FALSE;
if (STRNCMP("default", arg, p - arg) == 0)
{
arg = skipwhite(p);
xp->xp_pattern = arg;
p = skiptowhite(arg);
}
if (*p != NUL) /* past group name */
{
include_link = FALSE;
if (arg[1] == 'i' && arg[0] == 'N')
highlight_list();
if (STRNCMP("link", arg, p - arg) == 0
|| STRNCMP("clear", arg, p - arg) == 0)
{
xp->xp_pattern = skipwhite(p);
p = skiptowhite(xp->xp_pattern);
if (*p != NUL) /* past first group name */
{
xp->xp_pattern = skipwhite(p);
p = skiptowhite(xp->xp_pattern);
}
}
if (*p != NUL) /* past group name(s) */
xp->xp_context = EXPAND_NOTHING;
}
}
}
}
/*
* List highlighting matches in a nice way.
*/
static void
highlight_list()
{
int i;
for (i = 10; --i >= 0; )
highlight_list_two(i, hl_attr(HLF_D));
for (i = 40; --i >= 0; )
highlight_list_two(99, 0);
}
static void
highlight_list_two(cnt, attr)
int cnt;
int attr;
{
msg_puts_attr((char_u *)("N \bI \b! \b" + cnt / 11), attr);
msg_clr_eos();
out_flush();
ui_delay(cnt == 99 ? 40L : (long)cnt * 50L, FALSE);
}
#endif /* FEAT_CMDL_COMPL */
#if defined(FEAT_CMDL_COMPL) || (defined(FEAT_SYN_HL) && defined(FEAT_EVAL)) \
|| defined(FEAT_SIGNS) || defined(PROTO)
/*
* Function given to ExpandGeneric() to obtain the list of group names.
* Also used for synIDattr() function.
*/
/*ARGSUSED*/
char_u *
get_highlight_name(xp, idx)
expand_T *xp;
int idx;
{
if (idx == highlight_ga.ga_len
#ifdef FEAT_CMDL_COMPL
&& include_link
#endif
)
return (char_u *)"link";
if (idx == highlight_ga.ga_len + 1
#ifdef FEAT_CMDL_COMPL
&& include_link
#endif
)
return (char_u *)"clear";
if (idx == highlight_ga.ga_len + 2
#ifdef FEAT_CMDL_COMPL
&& include_default
#endif
)
return (char_u *)"default";
if (idx < 0 || idx >= highlight_ga.ga_len)
return NULL;
return HL_TABLE()[idx].sg_name;
}
#endif
#ifdef FEAT_GUI
/*
* Free all the highlight group fonts.
* Used when quitting for systems which need it.
*/
void
free_highlight_fonts()
{
int idx;
for (idx = 0; idx < highlight_ga.ga_len; ++idx)
{
gui_mch_free_font(HL_TABLE()[idx].sg_font);
HL_TABLE()[idx].sg_font = NOFONT;
# ifdef FEAT_XFONTSET
gui_mch_free_fontset(HL_TABLE()[idx].sg_fontset);
HL_TABLE()[idx].sg_fontset = NOFONTSET;
# endif
}
gui_mch_free_font(gui.norm_font);
# ifdef FEAT_XFONTSET
gui_mch_free_fontset(gui.fontset);
# endif
# ifndef HAVE_GTK2
gui_mch_free_font(gui.bold_font);
gui_mch_free_font(gui.ital_font);
gui_mch_free_font(gui.boldital_font);
# endif
}
#endif
/**************************************
* End of Highlighting stuff *
**************************************/