ref: c40d57b389033a42ad526308884e49b39746ecf5
dir: /farsi.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.
*/
/*
* farsi.c: functions for Farsi language
*
* Included by main.c, when FEAT_FKMAP is defined.
*/
static int toF_Xor_X_ __ARGS((int c));
static int F_is_TyE __ARGS((int c));
static int F_is_TyC_TyD __ARGS((int c));
static int F_is_TyB_TyC_TyD __ARGS((int src, int offset));
static int toF_TyB __ARGS((int c));
static void put_curr_and_l_to_X __ARGS((int c));
static void put_and_redo __ARGS((int c));
static void chg_c_toX_orX __ARGS((void));
static void chg_c_to_X_orX_ __ARGS((void));
static void chg_c_to_X_or_X __ARGS((void));
static void chg_l_to_X_orX_ __ARGS((void));
static void chg_l_toXor_X __ARGS((void));
static void chg_r_to_Xor_X_ __ARGS((void));
static int toF_leading __ARGS((int c));
static int toF_Rjoin __ARGS((int c));
static int canF_Ljoin __ARGS((int c));
static int canF_Rjoin __ARGS((int c));
static int F_isterm __ARGS((int c));
static int toF_ending __ARGS((int c));
static void lrswapbuf __ARGS((char_u *buf, int len));
/*
** Convert the given Farsi character into a _X or _X_ type
*/
static int
toF_Xor_X_(c)
int c;
{
int tempc;
switch (c)
{
case BE:
return _BE;
case PE:
return _PE;
case TE:
return _TE;
case SE:
return _SE;
case JIM:
return _JIM;
case CHE:
return _CHE;
case HE_J:
return _HE_J;
case XE:
return _XE;
case SIN:
return _SIN;
case SHIN:
return _SHIN;
case SAD:
return _SAD;
case ZAD:
return _ZAD;
case AYN:
return _AYN;
case AYN_:
return _AYN_;
case GHAYN:
return _GHAYN;
case GHAYN_:
return _GHAYN_;
case FE:
return _FE;
case GHAF:
return _GHAF;
case KAF:
return _KAF;
case GAF:
return _GAF;
case LAM:
return _LAM;
case MIM:
return _MIM;
case NOON:
return _NOON;
case YE:
case YE_:
return _YE;
case YEE:
case YEE_:
return _YEE;
case IE:
case IE_:
return _IE;
case F_HE:
tempc = _HE;
if (p_ri && (curwin->w_cursor.col+1 < STRLEN(ml_get_curline())))
{
inc_cursor();
if (F_is_TyB_TyC_TyD(SRC_EDT, AT_CURSOR))
tempc = _HE_;
dec_cursor();
}
if (!p_ri && STRLEN(ml_get_curline()))
{
dec_cursor();
if (F_is_TyB_TyC_TyD(SRC_EDT, AT_CURSOR))
tempc = _HE_;
inc_cursor();
}
return tempc;
}
return 0;
}
/*
** Convert the given Farsi character into Farsi capital character .
*/
int
toF_TyA(c)
int c ;
{
switch (c)
{
case ALEF_:
return ALEF;
case ALEF_U_H_:
return ALEF_U_H;
case _BE:
return BE;
case _PE:
return PE;
case _TE:
return TE;
case _SE:
return SE;
case _JIM:
return JIM;
case _CHE:
return CHE;
case _HE_J:
return HE_J;
case _XE:
return XE;
case _SIN:
return SIN;
case _SHIN:
return SHIN;
case _SAD:
return SAD;
case _ZAD:
return ZAD;
case _AYN:
case AYN_:
case _AYN_:
return AYN;
case _GHAYN:
case GHAYN_:
case _GHAYN_:
return GHAYN;
case _FE:
return FE;
case _GHAF:
return GHAF;
/* I am not sure what it is !!! case _KAF_H: */
case _KAF:
return KAF;
case _GAF:
return GAF;
case _LAM:
return LAM;
case _MIM:
return MIM;
case _NOON:
return NOON;
case _YE:
case YE_:
return YE;
case _YEE:
case YEE_:
return YEE;
case TEE_:
return TEE;
case _IE:
case IE_:
return IE;
case _HE:
case _HE_:
return F_HE;
}
return c;
}
/*
** Is the character under the cursor+offset in the given buffer a join type.
** That is a character that is combined with the others.
** Note: the offset is used only for command line buffer.
*/
static int
F_is_TyB_TyC_TyD(src, offset)
int src, offset;
{
int c;
if (src == SRC_EDT)
c = gchar_cursor();
else
c = cmd_gchar(AT_CURSOR+offset);
switch (c)
{
case _LAM:
case _BE:
case _PE:
case _TE:
case _SE:
case _JIM:
case _CHE:
case _HE_J:
case _XE:
case _SIN:
case _SHIN:
case _SAD:
case _ZAD:
case _TA:
case _ZA:
case _AYN:
case _AYN_:
case _GHAYN:
case _GHAYN_:
case _FE:
case _GHAF:
case _KAF:
case _KAF_H:
case _GAF:
case _MIM:
case _NOON:
case _YE:
case _YEE:
case _IE:
case _HE_:
case _HE:
return TRUE;
}
return FALSE;
}
/*
** Is the Farsi character one of the terminating only type.
*/
static int
F_is_TyE(c)
int c;
{
switch (c)
{
case ALEF_A:
case ALEF_D_H:
case DAL:
case ZAL:
case RE:
case ZE:
case JE:
case WAW:
case WAW_H:
case HAMZE:
return TRUE;
}
return FALSE;
}
/*
** Is the Farsi character one of the none leading type.
*/
static int
F_is_TyC_TyD(c)
int c;
{
switch (c)
{
case ALEF_:
case ALEF_U_H_:
case _AYN_:
case AYN_:
case _GHAYN_:
case GHAYN_:
case _HE_:
case YE_:
case IE_:
case TEE_:
case YEE_:
return TRUE;
}
return FALSE;
}
/*
** Convert a none leading Farsi char into a leading type.
*/
static int
toF_TyB(c)
int c;
{
switch (c)
{
case ALEF_: return ALEF;
case ALEF_U_H_: return ALEF_U_H;
case _AYN_: return _AYN;
case AYN_: return AYN; /* exception - there are many of them */
case _GHAYN_: return _GHAYN;
case GHAYN_: return GHAYN; /* exception - there are many of them */
case _HE_: return _HE;
case YE_: return YE;
case IE_: return IE;
case TEE_: return TEE;
case YEE_: return YEE;
}
return c;
}
/*
** Overwrite the current redo and cursor characters + left adjust
*/
static void
put_curr_and_l_to_X(c)
int c;
{
int tempc;
if (curwin->w_p_rl && p_ri)
return;
if ( (curwin->w_cursor.col < STRLEN(ml_get_curline())))
{
if ((p_ri && curwin->w_cursor.col) || !p_ri)
{
if (p_ri)
dec_cursor();
else
inc_cursor();
if (F_is_TyC_TyD((tempc = gchar_cursor())))
{
pchar_cursor(toF_TyB(tempc));
AppendCharToRedobuff(K_BS);
AppendCharToRedobuff(tempc);
}
if (p_ri)
inc_cursor();
else
dec_cursor();
}
}
put_and_redo(c);
}
static void
put_and_redo(c)
int c;
{
pchar_cursor(c);
AppendCharToRedobuff(K_BS);
AppendCharToRedobuff(c);
}
/*
** Change the char. under the cursor to a X_ or X type
*/
static void
chg_c_toX_orX()
{
int tempc, curc;
switch ((curc = gchar_cursor()))
{
case _BE:
tempc = BE;
break;
case _PE:
tempc = PE;
break;
case _TE:
tempc = TE;
break;
case _SE:
tempc = SE;
break;
case _JIM:
tempc = JIM;
break;
case _CHE:
tempc = CHE;
break;
case _HE_J:
tempc = HE_J;
break;
case _XE:
tempc = XE;
break;
case _SIN:
tempc = SIN;
break;
case _SHIN:
tempc = SHIN;
break;
case _SAD:
tempc = SAD;
break;
case _ZAD:
tempc = ZAD;
break;
case _FE:
tempc = FE;
break;
case _GHAF:
tempc = GHAF;
break;
case _KAF_H:
case _KAF:
tempc = KAF;
break;
case _GAF:
tempc = GAF;
break;
case _AYN:
tempc = AYN;
break;
case _AYN_:
tempc = AYN_;
break;
case _GHAYN:
tempc = GHAYN;
break;
case _GHAYN_:
tempc = GHAYN_;
break;
case _LAM:
tempc = LAM;
break;
case _MIM:
tempc = MIM;
break;
case _NOON:
tempc = NOON;
break;
case _HE:
case _HE_:
tempc = F_HE;
break;
case _YE:
case _IE:
case _YEE:
if (p_ri)
{
inc_cursor();
if (F_is_TyB_TyC_TyD(SRC_EDT, AT_CURSOR))
tempc = (curc == _YE ? YE_ :
(curc == _IE ? IE_ : YEE_));
else
tempc = (curc == _YE ? YE :
(curc == _IE ? IE : YEE));
dec_cursor();
}
else
{
if (curwin->w_cursor.col)
{
dec_cursor();
if (F_is_TyB_TyC_TyD(SRC_EDT, AT_CURSOR))
tempc = (curc == _YE ? YE_ :
(curc == _IE ? IE_ : YEE_));
else
tempc = (curc == _YE ? YE :
(curc == _IE ? IE : YEE));
inc_cursor();
}
else
tempc = (curc == _YE ? YE :
(curc == _IE ? IE : YEE));
}
break;
default:
tempc = 0;
}
if (tempc)
put_and_redo(tempc);
}
/*
** Change the char. under the cursor to a _X_ or X_ type
*/
static void
chg_c_to_X_orX_()
{
int tempc;
switch (gchar_cursor())
{
case ALEF:
tempc = ALEF_;
break;
case ALEF_U_H:
tempc = ALEF_U_H_;
break;
case _AYN:
tempc = _AYN_;
break;
case AYN:
tempc = AYN_;
break;
case _GHAYN:
tempc = _GHAYN_;
break;
case GHAYN:
tempc = GHAYN_;
break;
case _HE:
tempc = _HE_;
break;
case YE:
tempc = YE_;
break;
case IE:
tempc = IE_;
break;
case TEE:
tempc = TEE_;
break;
case YEE:
tempc = YEE_;
break;
default:
tempc = 0;
}
if (tempc)
put_and_redo(tempc);
}
/*
** Change the char. under the cursor to a _X_ or _X type
*/
static void
chg_c_to_X_or_X ()
{
int tempc;
tempc = gchar_cursor();
if (curwin->w_cursor.col+1 < STRLEN(ml_get_curline()))
{
inc_cursor();
if ((tempc == F_HE) && (F_is_TyB_TyC_TyD(SRC_EDT, AT_CURSOR)))
{
tempc = _HE_;
dec_cursor();
put_and_redo(tempc);
return;
}
dec_cursor();
}
if ((tempc = toF_Xor_X_(tempc)) != 0)
put_and_redo(tempc);
}
/*
** Change the character left to the cursor to a _X_ or X_ type
*/
static void
chg_l_to_X_orX_ ()
{
int tempc;
if (!curwin->w_cursor.col &&
(curwin->w_cursor.col+1 == STRLEN(ml_get_curline())))
return;
if (!curwin->w_cursor.col && p_ri)
return;
if (p_ri)
dec_cursor();
else
inc_cursor();
switch (gchar_cursor())
{
case ALEF:
tempc = ALEF_;
break;
case ALEF_U_H:
tempc = ALEF_U_H_;
break;
case _AYN:
tempc = _AYN_;
break;
case AYN:
tempc = AYN_;
break;
case _GHAYN:
tempc = _GHAYN_;
break;
case GHAYN:
tempc = GHAYN_;
break;
case _HE:
tempc = _HE_;
break;
case YE:
tempc = YE_;
break;
case IE:
tempc = IE_;
break;
case TEE:
tempc = TEE_;
break;
case YEE:
tempc = YEE_;
break;
default:
tempc = 0;
}
if (tempc)
put_and_redo(tempc);
if (p_ri)
inc_cursor();
else
dec_cursor();
}
/*
** Change the character left to the cursor to a X or _X type
*/
static void
chg_l_toXor_X ()
{
int tempc;
if (!curwin->w_cursor.col &&
(curwin->w_cursor.col+1 == STRLEN(ml_get_curline())))
return;
if (!curwin->w_cursor.col && p_ri)
return;
if (p_ri)
dec_cursor();
else
inc_cursor();
switch (gchar_cursor())
{
case ALEF_:
tempc = ALEF;
break;
case ALEF_U_H_:
tempc = ALEF_U_H;
break;
case _AYN_:
tempc = _AYN;
break;
case AYN_:
tempc = AYN;
break;
case _GHAYN_:
tempc = _GHAYN;
break;
case GHAYN_:
tempc = GHAYN;
break;
case _HE_:
tempc = _HE;
break;
case YE_:
tempc = YE;
break;
case IE_:
tempc = IE;
break;
case TEE_:
tempc = TEE;
break;
case YEE_:
tempc = YEE;
break;
default:
tempc = 0;
}
if (tempc)
put_and_redo(tempc);
if (p_ri)
inc_cursor();
else
dec_cursor();
}
/*
** Change the character right to the cursor to a _X or _X_ type
*/
static void
chg_r_to_Xor_X_()
{
int tempc, c;
if (curwin->w_cursor.col)
{
if (!p_ri)
dec_cursor();
tempc = gchar_cursor();
if ((c = toF_Xor_X_(tempc)) != 0)
put_and_redo(c);
if (!p_ri)
inc_cursor();
}
}
/*
** Map Farsi keyboard when in fkmap mode.
*/
int
fkmap(c)
int c;
{
int tempc;
static int revins;
if (IS_SPECIAL(c))
return c;
if (VIM_ISDIGIT(c) || ((c == '.' || c == '+' || c == '-' ||
c == '^' || c == '%' || c == '#' || c == '=') && revins))
{
if (!revins)
{
if (curwin->w_cursor.col)
{
if (!p_ri)
dec_cursor();
chg_c_toX_orX ();
chg_l_toXor_X ();
if (!p_ri)
inc_cursor();
}
}
arrow_used = TRUE;
(void)stop_arrow();
if (!curwin->w_p_rl && revins)
inc_cursor();
++revins;
p_ri=1;
}
else
{
if (revins)
{
arrow_used = TRUE;
(void)stop_arrow();
revins = 0;
if (curwin->w_p_rl)
{
while ((F_isdigit(gchar_cursor())
|| (gchar_cursor() == F_PERIOD
|| gchar_cursor() == F_PLUS
|| gchar_cursor() == F_MINUS
|| gchar_cursor() == F_MUL
|| gchar_cursor() == F_DIVIDE
|| gchar_cursor() == F_PERCENT
|| gchar_cursor() == F_EQUALS))
&& gchar_cursor() != NUL)
++curwin->w_cursor.col;
}
else
{
if (curwin->w_cursor.col)
while ((F_isdigit(gchar_cursor())
|| (gchar_cursor() == F_PERIOD
|| gchar_cursor() == F_PLUS
|| gchar_cursor() == F_MINUS
|| gchar_cursor() == F_MUL
|| gchar_cursor() == F_DIVIDE
|| gchar_cursor() == F_PERCENT
|| gchar_cursor() == F_EQUALS))
&& --curwin->w_cursor.col)
;
if (!F_isdigit(gchar_cursor()))
++curwin->w_cursor.col;
}
}
}
if (!revins)
{
if (curwin->w_p_rl)
p_ri=0;
if (!curwin->w_p_rl)
p_ri=1;
}
if ((c < 0x100) && (isalpha(c) || c == '&' || c == '^' || c == ';' ||
c == '\''|| c == ',' || c == '[' ||
c == ']' || c == '{' || c == '}' ))
chg_r_to_Xor_X_();
tempc = 0;
switch (c)
{
case '`':
case ' ':
case '.':
case '!':
case '"':
case '$':
case '%':
case '^':
case '&':
case '/':
case '(':
case ')':
case '=':
case '\\':
case '?':
case '+':
case '-':
case '_':
case '*':
case ':':
case '#':
case '~':
case '@':
case '<':
case '>':
case '{':
case '}':
case '|':
case '0':
case '1':
case '2':
case '3':
case '4':
case '5':
case '6':
case '7':
case '8':
case '9':
case 'B':
case 'E':
case 'F':
case 'H':
case 'I':
case 'K':
case 'L':
case 'M':
case 'O':
case 'P':
case 'Q':
case 'R':
case 'T':
case 'U':
case 'W':
case 'Y':
case NL:
case TAB:
if (p_ri && c == NL && curwin->w_cursor.col)
{
/*
** If the char before the cursor is _X_ or X_ do not change
** the one under the cursor with X type.
*/
dec_cursor();
if (F_isalpha(gchar_cursor()))
{
inc_cursor();
return NL;
}
inc_cursor();
}
if (!p_ri)
if (!curwin->w_cursor.col)
{
switch (c)
{
case '0': return FARSI_0;
case '1': return FARSI_1;
case '2': return FARSI_2;
case '3': return FARSI_3;
case '4': return FARSI_4;
case '5': return FARSI_5;
case '6': return FARSI_6;
case '7': return FARSI_7;
case '8': return FARSI_8;
case '9': return FARSI_9;
case 'B': return F_PSP;
case 'E': return JAZR_N;
case 'F': return ALEF_D_H;
case 'H': return ALEF_A;
case 'I': return TASH;
case 'K': return F_LQUOT;
case 'L': return F_RQUOT;
case 'M': return HAMZE;
case 'O': return '[';
case 'P': return ']';
case 'Q': return OO;
case 'R': return MAD_N;
case 'T': return OW;
case 'U': return MAD;
case 'W': return OW_OW;
case 'Y': return JAZR;
case '`': return F_PCN;
case '!': return F_EXCL;
case '@': return F_COMMA;
case '#': return F_DIVIDE;
case '$': return F_CURRENCY;
case '%': return F_PERCENT;
case '^': return F_MUL;
case '&': return F_BCOMMA;
case '*': return F_STAR;
case '(': return F_LPARENT;
case ')': return F_RPARENT;
case '-': return F_MINUS;
case '_': return F_UNDERLINE;
case '=': return F_EQUALS;
case '+': return F_PLUS;
case '\\': return F_BSLASH;
case '|': return F_PIPE;
case ':': return F_DCOLON;
case '"': return F_SEMICOLON;
case '.': return F_PERIOD;
case '/': return F_SLASH;
case '<': return F_LESS;
case '>': return F_GREATER;
case '?': return F_QUESTION;
case ' ': return F_BLANK;
}
break;
}
if (!p_ri)
dec_cursor();
switch ((tempc = gchar_cursor()))
{
case _BE:
case _PE:
case _TE:
case _SE:
case _JIM:
case _CHE:
case _HE_J:
case _XE:
case _SIN:
case _SHIN:
case _SAD:
case _ZAD:
case _FE:
case _GHAF:
case _KAF:
case _KAF_H:
case _GAF:
case _LAM:
case _MIM:
case _NOON:
case _HE:
case _HE_:
case _TA:
case _ZA:
put_curr_and_l_to_X(toF_TyA(tempc));
break;
case _AYN:
case _AYN_:
if (!p_ri)
if (!curwin->w_cursor.col)
{
put_curr_and_l_to_X(AYN);
break;
}
if (p_ri)
inc_cursor();
else
dec_cursor();
if (F_is_TyB_TyC_TyD(SRC_EDT, AT_CURSOR))
tempc = AYN_;
else
tempc = AYN;
if (p_ri)
dec_cursor();
else
inc_cursor();
put_curr_and_l_to_X(tempc);
break;
case _GHAYN:
case _GHAYN_:
if (!p_ri)
if (!curwin->w_cursor.col)
{
put_curr_and_l_to_X(GHAYN);
break;
}
if (p_ri)
inc_cursor();
else
dec_cursor();
if (F_is_TyB_TyC_TyD(SRC_EDT, AT_CURSOR))
tempc = GHAYN_;
else
tempc = GHAYN;
if (p_ri)
dec_cursor();
else
inc_cursor();
put_curr_and_l_to_X(tempc);
break;
case _YE:
case _IE:
case _YEE:
if (!p_ri)
if (!curwin->w_cursor.col)
{
put_curr_and_l_to_X((tempc == _YE ? YE :
(tempc == _IE ? IE : YEE)));
break;
}
if (p_ri)
inc_cursor();
else
dec_cursor();
if (F_is_TyB_TyC_TyD(SRC_EDT, AT_CURSOR))
tempc = (tempc == _YE ? YE_ :
(tempc == _IE ? IE_ : YEE_));
else
tempc = (tempc == _YE ? YE :
(tempc == _IE ? IE : YEE));
if (p_ri)
dec_cursor();
else
inc_cursor();
put_curr_and_l_to_X(tempc);
break;
}
if (!p_ri)
inc_cursor();
tempc = 0;
switch (c)
{
case '0': return FARSI_0;
case '1': return FARSI_1;
case '2': return FARSI_2;
case '3': return FARSI_3;
case '4': return FARSI_4;
case '5': return FARSI_5;
case '6': return FARSI_6;
case '7': return FARSI_7;
case '8': return FARSI_8;
case '9': return FARSI_9;
case 'B': return F_PSP;
case 'E': return JAZR_N;
case 'F': return ALEF_D_H;
case 'H': return ALEF_A;
case 'I': return TASH;
case 'K': return F_LQUOT;
case 'L': return F_RQUOT;
case 'M': return HAMZE;
case 'O': return '[';
case 'P': return ']';
case 'Q': return OO;
case 'R': return MAD_N;
case 'T': return OW;
case 'U': return MAD;
case 'W': return OW_OW;
case 'Y': return JAZR;
case '`': return F_PCN;
case '!': return F_EXCL;
case '@': return F_COMMA;
case '#': return F_DIVIDE;
case '$': return F_CURRENCY;
case '%': return F_PERCENT;
case '^': return F_MUL;
case '&': return F_BCOMMA;
case '*': return F_STAR;
case '(': return F_LPARENT;
case ')': return F_RPARENT;
case '-': return F_MINUS;
case '_': return F_UNDERLINE;
case '=': return F_EQUALS;
case '+': return F_PLUS;
case '\\': return F_BSLASH;
case '|': return F_PIPE;
case ':': return F_DCOLON;
case '"': return F_SEMICOLON;
case '.': return F_PERIOD;
case '/': return F_SLASH;
case '<': return F_LESS;
case '>': return F_GREATER;
case '?': return F_QUESTION;
case ' ': return F_BLANK;
}
break;
case 'a':
tempc = _SHIN;
break;
case 'A':
tempc = WAW_H;
break;
case 'b':
tempc = ZAL;
break;
case 'c':
tempc = ZE;
break;
case 'C':
tempc = JE;
break;
case 'd':
tempc = _YE;
break;
case 'D':
tempc = _YEE;
break;
case 'e':
tempc = _SE;
break;
case 'f':
tempc = _BE;
break;
case 'g':
tempc = _LAM;
break;
case 'G':
if (!curwin->w_cursor.col && STRLEN(ml_get_curline()))
{
if (gchar_cursor() == _LAM)
chg_c_toX_orX ();
else
if (p_ri)
chg_c_to_X_or_X ();
}
if (!p_ri)
if (!curwin->w_cursor.col)
return ALEF_U_H;
if (!p_ri)
dec_cursor();
if (gchar_cursor() == _LAM)
{
chg_c_toX_orX ();
chg_l_toXor_X ();
tempc = ALEF_U_H;
}
else
if (F_is_TyB_TyC_TyD(SRC_EDT, AT_CURSOR))
{
tempc = ALEF_U_H_;
chg_l_toXor_X ();
}
else
tempc = ALEF_U_H;
if (!p_ri)
inc_cursor();
return tempc;
case 'h':
if (!curwin->w_cursor.col && STRLEN(ml_get_curline()))
{
if (p_ri)
chg_c_to_X_or_X ();
}
if (!p_ri)
if (!curwin->w_cursor.col)
return ALEF;
if (!p_ri)
dec_cursor();
if (gchar_cursor() == _LAM)
{
chg_l_toXor_X();
del_char(FALSE);
AppendCharToRedobuff(K_BS);
if (!p_ri)
dec_cursor();
tempc = LA;
}
else
{
if (F_is_TyB_TyC_TyD(SRC_EDT, AT_CURSOR))
{
tempc = ALEF_;
chg_l_toXor_X ();
}
else
tempc = ALEF;
}
if (!p_ri)
inc_cursor();
return tempc;
case 'i':
if (!curwin->w_cursor.col && STRLEN(ml_get_curline()))
{
if (!p_ri && !F_is_TyE(tempc))
chg_c_to_X_orX_ ();
if (p_ri)
chg_c_to_X_or_X ();
}
if (!p_ri && !curwin->w_cursor.col)
return _HE;
if (!p_ri)
dec_cursor();
if (F_is_TyB_TyC_TyD(SRC_EDT, AT_CURSOR))
tempc = _HE_;
else
tempc = _HE;
if (!p_ri)
inc_cursor();
break;
case 'j':
tempc = _TE;
break;
case 'J':
if (!curwin->w_cursor.col && STRLEN(ml_get_curline()))
{
if (p_ri)
chg_c_to_X_or_X ();
}
if (!p_ri)
if (!curwin->w_cursor.col)
return TEE;
if (!p_ri)
dec_cursor();
if (F_is_TyB_TyC_TyD(SRC_EDT, AT_CURSOR))
{
tempc = TEE_;
chg_l_toXor_X ();
}
else
tempc = TEE;
if (!p_ri)
inc_cursor();
return tempc;
case 'k':
tempc = _NOON;
break;
case 'l':
tempc = _MIM;
break;
case 'm':
tempc = _PE;
break;
case 'n':
case 'N':
tempc = DAL;
break;
case 'o':
tempc = _XE;
break;
case 'p':
tempc = _HE_J;
break;
case 'q':
tempc = _ZAD;
break;
case 'r':
tempc = _GHAF;
break;
case 's':
tempc = _SIN;
break;
case 'S':
tempc = _IE;
break;
case 't':
tempc = _FE;
break;
case 'u':
if (!curwin->w_cursor.col && STRLEN(ml_get_curline()))
{
if (!p_ri && !F_is_TyE(tempc))
chg_c_to_X_orX_ ();
if (p_ri)
chg_c_to_X_or_X ();
}
if (!p_ri && !curwin->w_cursor.col)
return _AYN;
if (!p_ri)
dec_cursor();
if (F_is_TyB_TyC_TyD(SRC_EDT, AT_CURSOR))
tempc = _AYN_;
else
tempc = _AYN;
if (!p_ri)
inc_cursor();
break;
case 'v':
case 'V':
tempc = RE;
break;
case 'w':
tempc = _SAD;
break;
case 'x':
case 'X':
tempc = _TA;
break;
case 'y':
if (!curwin->w_cursor.col && STRLEN(ml_get_curline()))
{
if (!p_ri && !F_is_TyE(tempc))
chg_c_to_X_orX_ ();
if (p_ri)
chg_c_to_X_or_X ();
}
if (!p_ri && !curwin->w_cursor.col)
return _GHAYN;
if (!p_ri)
dec_cursor();
if (F_is_TyB_TyC_TyD(SRC_EDT, AT_CURSOR))
tempc = _GHAYN_;
else
tempc = _GHAYN;
if (!p_ri)
inc_cursor();
break;
case 'z':
tempc = _ZA;
break;
case 'Z':
tempc = _KAF_H;
break;
case ';':
tempc = _KAF;
break;
case '\'':
tempc = _GAF;
break;
case ',':
tempc = WAW;
break;
case '[':
tempc = _JIM;
break;
case ']':
tempc = _CHE;
break;
}
if ((F_isalpha(tempc) || F_isdigit(tempc)))
{
if (!curwin->w_cursor.col && STRLEN(ml_get_curline()))
{
if (!p_ri && !F_is_TyE(tempc))
chg_c_to_X_orX_ ();
if (p_ri)
chg_c_to_X_or_X ();
}
if (curwin->w_cursor.col)
{
if (!p_ri)
dec_cursor();
if (F_is_TyE(tempc))
chg_l_toXor_X ();
else
chg_l_to_X_orX_ ();
if (!p_ri)
inc_cursor();
}
}
if (tempc)
return tempc;
return c;
}
/*
** Convert a none leading Farsi char into a leading type.
*/
static int
toF_leading(c)
int c;
{
switch (c)
{
case ALEF_: return ALEF;
case ALEF_U_H_: return ALEF_U_H;
case BE: return _BE;
case PE: return _PE;
case TE: return _TE;
case SE: return _SE;
case JIM: return _JIM;
case CHE: return _CHE;
case HE_J: return _HE_J;
case XE: return _XE;
case SIN: return _SIN;
case SHIN: return _SHIN;
case SAD: return _SAD;
case ZAD: return _ZAD;
case AYN:
case AYN_:
case _AYN_: return _AYN;
case GHAYN:
case GHAYN_:
case _GHAYN_: return _GHAYN;
case FE: return _FE;
case GHAF: return _GHAF;
case KAF: return _KAF;
case GAF: return _GAF;
case LAM: return _LAM;
case MIM: return _MIM;
case NOON: return _NOON;
case _HE_:
case F_HE: return _HE;
case YE:
case YE_: return _YE;
case IE_:
case IE: return _IE;
case YEE:
case YEE_: return _YEE;
}
return c;
}
/*
** Convert a given Farsi char into right joining type.
*/
static int
toF_Rjoin(c)
int c;
{
switch (c)
{
case ALEF: return ALEF_;
case ALEF_U_H: return ALEF_U_H_;
case BE: return _BE;
case PE: return _PE;
case TE: return _TE;
case SE: return _SE;
case JIM: return _JIM;
case CHE: return _CHE;
case HE_J: return _HE_J;
case XE: return _XE;
case SIN: return _SIN;
case SHIN: return _SHIN;
case SAD: return _SAD;
case ZAD: return _ZAD;
case AYN:
case AYN_:
case _AYN: return _AYN_;
case GHAYN:
case GHAYN_:
case _GHAYN_: return _GHAYN_;
case FE: return _FE;
case GHAF: return _GHAF;
case KAF: return _KAF;
case GAF: return _GAF;
case LAM: return _LAM;
case MIM: return _MIM;
case NOON: return _NOON;
case _HE:
case F_HE: return _HE_;
case YE:
case YE_: return _YE;
case IE_:
case IE: return _IE;
case TEE: return TEE_;
case YEE:
case YEE_: return _YEE;
}
return c;
}
/*
** Can a given Farsi character join via its left edj.
*/
static int
canF_Ljoin(c)
int c;
{
switch (c)
{
case _BE:
case BE:
case PE:
case _PE:
case TE:
case _TE:
case SE:
case _SE:
case JIM:
case _JIM:
case CHE:
case _CHE:
case HE_J:
case _HE_J:
case XE:
case _XE:
case SIN:
case _SIN:
case SHIN:
case _SHIN:
case SAD:
case _SAD:
case ZAD:
case _ZAD:
case _TA:
case _ZA:
case AYN:
case _AYN:
case _AYN_:
case AYN_:
case GHAYN:
case GHAYN_:
case _GHAYN_:
case _GHAYN:
case FE:
case _FE:
case GHAF:
case _GHAF:
case _KAF_H:
case KAF:
case _KAF:
case GAF:
case _GAF:
case LAM:
case _LAM:
case MIM:
case _MIM:
case NOON:
case _NOON:
case IE:
case _IE:
case IE_:
case YE:
case _YE:
case YE_:
case YEE:
case _YEE:
case YEE_:
case F_HE:
case _HE:
case _HE_:
return TRUE;
}
return FALSE;
}
/*
** Can a given Farsi character join via its right edj.
*/
static int
canF_Rjoin(c)
int c;
{
switch (c)
{
case ALEF:
case ALEF_:
case ALEF_U_H:
case ALEF_U_H_:
case DAL:
case ZAL:
case RE:
case JE:
case ZE:
case TEE:
case TEE_:
case WAW:
case WAW_H:
return TRUE;
}
return canF_Ljoin(c);
}
/*
** is a given Farsi character a terminating type.
*/
static int
F_isterm(c)
int c;
{
switch (c)
{
case ALEF:
case ALEF_:
case ALEF_U_H:
case ALEF_U_H_:
case DAL:
case ZAL:
case RE:
case JE:
case ZE:
case WAW:
case WAW_H:
case TEE:
case TEE_:
return TRUE;
}
return FALSE;
}
/*
** Convert the given Farsi character into a ending type .
*/
static int
toF_ending(c)
int c;
{
switch (c)
{
case _BE:
return BE;
case _PE:
return PE;
case _TE:
return TE;
case _SE:
return SE;
case _JIM:
return JIM;
case _CHE:
return CHE;
case _HE_J:
return HE_J;
case _XE:
return XE;
case _SIN:
return SIN;
case _SHIN:
return SHIN;
case _SAD:
return SAD;
case _ZAD:
return ZAD;
case _AYN:
return AYN;
case _AYN_:
return AYN_;
case _GHAYN:
return GHAYN;
case _GHAYN_:
return GHAYN_;
case _FE:
return FE;
case _GHAF:
return GHAF;
case _KAF_H:
case _KAF:
return KAF;
case _GAF:
return GAF;
case _LAM:
return LAM;
case _MIM:
return MIM;
case _NOON:
return NOON;
case _YE:
return YE_;
case YE_:
return YE;
case _YEE:
return YEE_;
case YEE_:
return YEE;
case TEE:
return TEE_;
case _IE:
return IE_;
case IE_:
return IE;
case _HE:
case _HE_:
return F_HE;
}
return c;
}
/*
** Convert the Farsi 3342 standard into Farsi VIM.
*/
void
conv_to_pvim()
{
char_u *ptr;
int lnum, llen, i;
for (lnum = 1; lnum <= curbuf->b_ml.ml_line_count; ++lnum)
{
ptr = ml_get((linenr_T)lnum);
llen = (int)STRLEN(ptr);
for ( i = 0; i < llen-1; i++)
{
if (canF_Ljoin(ptr[i]) && canF_Rjoin(ptr[i+1]))
{
ptr[i] = toF_leading(ptr[i]);
++i;
while(canF_Rjoin(ptr[i]) && (i < llen))
{
ptr[i] = toF_Rjoin(ptr[i]);
if (F_isterm(ptr[i]) || !F_isalpha(ptr[i]))
break;
++i;
}
if (!F_isalpha(ptr[i]) || !canF_Rjoin(ptr[i]))
ptr[i-1] = toF_ending(ptr[i-1]);
}
else
ptr[i] = toF_TyA(ptr[i]);
}
}
/*
* Following lines contains Farsi encoded character.
*/
do_cmdline_cmd((char_u *)"%s/\202\231/\232/g");
do_cmdline_cmd((char_u *)"%s/\201\231/\370\334/g");
/* Assume the screen has been messed up: clear it and redraw. */
redraw_later(CLEAR);
MSG_ATTR(farsi_text_1, hl_attr(HLF_S));
}
/*
* Convert the Farsi VIM into Farsi 3342 standad.
*/
void
conv_to_pstd()
{
char_u *ptr;
int lnum, llen, i;
/*
* Following line contains Farsi encoded character.
*/
do_cmdline_cmd((char_u *)"%s/\232/\202\231/g");
for (lnum = 1; lnum <= curbuf->b_ml.ml_line_count; ++lnum)
{
ptr = ml_get((linenr_T)lnum);
llen = (int)STRLEN(ptr);
for ( i = 0; i < llen; i++)
{
ptr[i] = toF_TyA(ptr[i]);
}
}
/* Assume the screen has been messed up: clear it and redraw. */
redraw_later(CLEAR);
MSG_ATTR(farsi_text_2, hl_attr(HLF_S));
}
/*
* left-right swap the characters in buf[len].
*/
static void
lrswapbuf(buf, len)
char_u *buf;
int len;
{
char_u *s, *e;
int c;
s = buf;
e = buf + len - 1;
while (e > s)
{
c = *s;
*s = *e;
*e = c;
++s;
--e;
}
}
/*
* swap all the characters in reverse direction
*/
char_u *
lrswap(ibuf)
char_u *ibuf;
{
if (ibuf != NULL && *ibuf != NUL)
lrswapbuf(ibuf, (int)STRLEN(ibuf));
return ibuf;
}
/*
* swap all the Farsi characters in reverse direction
*/
char_u *
lrFswap(cmdbuf, len)
char_u *cmdbuf;
int len;
{
int i, cnt;
if (cmdbuf == NULL)
return cmdbuf;
if (len == 0 && (len = (int)STRLEN(cmdbuf)) == 0)
return cmdbuf;
for (i = 0; i < len; i++)
{
for (cnt = 0; i + cnt < len
&& (F_isalpha(cmdbuf[i + cnt])
|| F_isdigit(cmdbuf[i + cnt])
|| cmdbuf[i + cnt] == ' '); ++cnt)
;
lrswapbuf(cmdbuf + i, cnt);
i += cnt;
}
return cmdbuf;
}
/*
* Reverse the characters in the search path and substitute section accordingly
*/
char_u *
lrF_sub(ibuf)
char_u *ibuf;
{
char_u *p, *ep;
int i, cnt;
p = ibuf;
/* Find the boundary of the search path */
while (((p = vim_strchr(p + 1, '/')) != NULL) && p[-1] == '\\')
;
if (p == NULL)
return ibuf;
/* Reverse the Farsi characters in the search path. */
lrFswap(ibuf, (int)(p-ibuf));
/* Now find the boundary of the substitute section */
if ((ep = (char_u *)strrchr((char *)++p, '/')) != NULL)
cnt = (int)(ep - p);
else
cnt = (int)STRLEN(p);
/* Reverse the characters in the substitute section and take care of '\' */
for (i = 0; i < cnt-1; i++)
if (p[i] == '\\')
{
p[i] = p[i+1] ;
p[++i] = '\\';
}
lrswapbuf(p, cnt);
return ibuf;
}
/*
* Map Farsi keyboard when in cmd_fkmap mode.
*/
int
cmdl_fkmap(c)
int c;
{
int tempc;
switch (c)
{
case '0':
case '1':
case '2':
case '3':
case '4':
case '5':
case '6':
case '7':
case '8':
case '9':
case '`':
case ' ':
case '.':
case '!':
case '"':
case '$':
case '%':
case '^':
case '&':
case '/':
case '(':
case ')':
case '=':
case '\\':
case '?':
case '+':
case '-':
case '_':
case '*':
case ':':
case '#':
case '~':
case '@':
case '<':
case '>':
case '{':
case '}':
case '|':
case 'B':
case 'E':
case 'F':
case 'H':
case 'I':
case 'K':
case 'L':
case 'M':
case 'O':
case 'P':
case 'Q':
case 'R':
case 'T':
case 'U':
case 'W':
case 'Y':
case NL:
case TAB:
switch ((tempc = cmd_gchar(AT_CURSOR)))
{
case _BE:
case _PE:
case _TE:
case _SE:
case _JIM:
case _CHE:
case _HE_J:
case _XE:
case _SIN:
case _SHIN:
case _SAD:
case _ZAD:
case _AYN:
case _GHAYN:
case _FE:
case _GHAF:
case _KAF:
case _GAF:
case _LAM:
case _MIM:
case _NOON:
case _HE:
case _HE_:
cmd_pchar(toF_TyA(tempc), AT_CURSOR);
break;
case _AYN_:
cmd_pchar(AYN_, AT_CURSOR);
break;
case _GHAYN_:
cmd_pchar(GHAYN_, AT_CURSOR);
break;
case _IE:
if (F_is_TyB_TyC_TyD(SRC_CMD, AT_CURSOR+1))
cmd_pchar(IE_, AT_CURSOR);
else
cmd_pchar(IE, AT_CURSOR);
break;
case _YEE:
if (F_is_TyB_TyC_TyD(SRC_CMD, AT_CURSOR+1))
cmd_pchar(YEE_, AT_CURSOR);
else
cmd_pchar(YEE, AT_CURSOR);
break;
case _YE:
if (F_is_TyB_TyC_TyD(SRC_CMD, AT_CURSOR+1))
cmd_pchar(YE_, AT_CURSOR);
else
cmd_pchar(YE, AT_CURSOR);
}
switch (c)
{
case '0': return FARSI_0;
case '1': return FARSI_1;
case '2': return FARSI_2;
case '3': return FARSI_3;
case '4': return FARSI_4;
case '5': return FARSI_5;
case '6': return FARSI_6;
case '7': return FARSI_7;
case '8': return FARSI_8;
case '9': return FARSI_9;
case 'B': return F_PSP;
case 'E': return JAZR_N;
case 'F': return ALEF_D_H;
case 'H': return ALEF_A;
case 'I': return TASH;
case 'K': return F_LQUOT;
case 'L': return F_RQUOT;
case 'M': return HAMZE;
case 'O': return '[';
case 'P': return ']';
case 'Q': return OO;
case 'R': return MAD_N;
case 'T': return OW;
case 'U': return MAD;
case 'W': return OW_OW;
case 'Y': return JAZR;
case '`': return F_PCN;
case '!': return F_EXCL;
case '@': return F_COMMA;
case '#': return F_DIVIDE;
case '$': return F_CURRENCY;
case '%': return F_PERCENT;
case '^': return F_MUL;
case '&': return F_BCOMMA;
case '*': return F_STAR;
case '(': return F_LPARENT;
case ')': return F_RPARENT;
case '-': return F_MINUS;
case '_': return F_UNDERLINE;
case '=': return F_EQUALS;
case '+': return F_PLUS;
case '\\': return F_BSLASH;
case '|': return F_PIPE;
case ':': return F_DCOLON;
case '"': return F_SEMICOLON;
case '.': return F_PERIOD;
case '/': return F_SLASH;
case '<': return F_LESS;
case '>': return F_GREATER;
case '?': return F_QUESTION;
case ' ': return F_BLANK;
}
break;
case 'a': return _SHIN;
case 'A': return WAW_H;
case 'b': return ZAL;
case 'c': return ZE;
case 'C': return JE;
case 'd': return _YE;
case 'D': return _YEE;
case 'e': return _SE;
case 'f': return _BE;
case 'g': return _LAM;
case 'G':
if (cmd_gchar(AT_CURSOR) == _LAM )
{
cmd_pchar(LAM, AT_CURSOR);
return ALEF_U_H;
}
if (F_is_TyB_TyC_TyD(SRC_CMD, AT_CURSOR))
return ALEF_U_H_;
else
return ALEF_U_H;
case 'h':
if (cmd_gchar(AT_CURSOR) == _LAM )
{
cmd_pchar(LA, AT_CURSOR);
redrawcmdline();
return K_IGNORE;
}
if (F_is_TyB_TyC_TyD(SRC_CMD, AT_CURSOR))
return ALEF_;
else
return ALEF;
case 'i':
if (F_is_TyB_TyC_TyD(SRC_CMD, AT_CURSOR))
return _HE_;
else
return _HE;
case 'j': return _TE;
case 'J':
if (F_is_TyB_TyC_TyD(SRC_CMD, AT_CURSOR))
return TEE_;
else
return TEE;
case 'k': return _NOON;
case 'l': return _MIM;
case 'm': return _PE;
case 'n':
case 'N': return DAL;
case 'o': return _XE;
case 'p': return _HE_J;
case 'q': return _ZAD;
case 'r': return _GHAF;
case 's': return _SIN;
case 'S': return _IE;
case 't': return _FE;
case 'u':
if (F_is_TyB_TyC_TyD(SRC_CMD, AT_CURSOR))
return _AYN_;
else
return _AYN;
case 'v':
case 'V': return RE;
case 'w': return _SAD;
case 'x':
case 'X': return _TA;
case 'y':
if (F_is_TyB_TyC_TyD(SRC_CMD, AT_CURSOR))
return _GHAYN_;
else
return _GHAYN;
case 'z':
case 'Z': return _ZA;
case ';': return _KAF;
case '\'': return _GAF;
case ',': return WAW;
case '[': return _JIM;
case ']': return _CHE;
}
return c;
}
/*
* F_isalpha returns TRUE if 'c' is a Farsi alphabet
*/
int
F_isalpha(c)
int c;
{
return (( c >= TEE_ && c <= _YE)
|| (c >= ALEF_A && c <= YE)
|| (c >= _IE && c <= YE_));
}
/*
* F_isdigit returns TRUE if 'c' is a Farsi digit
*/
int
F_isdigit(c)
int c;
{
return (c >= FARSI_0 && c <= FARSI_9);
}
/*
* F_ischar returns TRUE if 'c' is a Farsi character.
*/
int
F_ischar(c)
int c;
{
return (c >= TEE_ && c <= YE_);
}
void
farsi_fkey(cap)
cmdarg_T *cap;
{
int c = cap->cmdchar;
if (c == K_F8)
{
if (p_altkeymap)
{
if (curwin->w_farsi & W_R_L)
{
p_fkmap = 0;
do_cmdline_cmd((char_u *)"set norl");
MSG("");
}
else
{
p_fkmap = 1;
do_cmdline_cmd((char_u *)"set rl");
MSG("");
}
curwin->w_farsi = curwin->w_farsi ^ W_R_L;
}
}
if (c == K_F9)
{
if (p_altkeymap && curwin->w_p_rl)
{
curwin->w_farsi = curwin->w_farsi ^ W_CONV;
if (curwin->w_farsi & W_CONV)
conv_to_pvim();
else
conv_to_pstd();
}
}
}