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post: mark and name device functions

Bookmarks: \X'mark description page offset level'
Labels: \X'name name page offset'

--- a/pdf.c

+++ b/pdf.c

@@ -734,6 +734,14 @@

 	obj_end();

 }

+void outname(char *name, int page, int off)

+{

+}

+

+void outmark(int n, char (*desc)[256], int *page, int *off, int *level)

+{

+}

+

 void outinfo(char *kwd, char *val)

 {

 	if (!strcmp("Author", kwd))

--- a/post.c

+++ b/post.c

@@ -27,6 +27,14 @@

 static int ps_linewidth = 40;	/* drawing line thickness in thousandths of an em */

 static int o_pages;		/* output pages */

+/* bookmark management */

+static char (*mark_desc)[256];	/* bookmark description */

+static int *mark_page;		/* bookmark page */

+static int *mark_offset;	/* bookmark offset */

+static int *mark_level;		/* bookmark level */

+static int mark_n;		/* number of bookmarks */

+static int mark_sz;		/* allocated size of bookmark arrays */

+

 static int next(void)

 {

 	return getc(stdin);

@@ -294,6 +302,14 @@

 		if (path[0] && !strcmp("pdf", cmd))

 			outpdf(path, hwid, vwid);

 	}

+	if (!strcmp("name", cmd)) {

+		char name[1 << 10];

+		int page = 0, offset = 0;

+		int nspec;

+		nspec = sscanf(arg, "%s %d %d", name, &page, &offset);

+		if (name[0] && nspec > 1)

+			outname(name, page == o_pages ? 0 : page, offset);

+	}

 	if (!strcmp("link", cmd)) {

 		char link[1 << 12];

 		int hwid, vwid, nspec;

@@ -303,6 +319,21 @@

 		if (link[0] && nspec == 2)

 			outlink(link, hwid, vwid);

 	}

+	if (!strcmp("mark", cmd)) {

+		char *spec = arg;

+		if (mark_n == mark_sz) {

+			mark_sz = mark_sz == 0 ? 128 : mark_sz * 2;

+			mark_desc = mextend(mark_desc, mark_n, mark_sz, sizeof(mark_desc[0]));

+			mark_page = mextend(mark_page, mark_n, mark_sz, sizeof(mark_page[0]));

+			mark_offset = mextend(mark_offset, mark_n, mark_sz, sizeof(mark_offset[0]));

+			mark_level = mextend(mark_level, mark_n, mark_sz, sizeof(mark_level[0]));

+		}

+		spec = strcut(mark_desc[mark_n], spec);

+		sscanf(spec, "%d %d %d", &mark_page[mark_n],

+				&mark_offset[mark_n], &mark_level[mark_n]);

+		if (mark_desc[mark_n][0])

+			mark_n++;

+	}

 	if (!strcmp("info", cmd)) {

 		char *spec = arg;

 		char kwd[128];

@@ -439,6 +470,7 @@

 			postcmd(c);

 	if (o_pages)

 		docpageend(o_pages);

+	outmark(mark_n, mark_desc, mark_page, mark_offset, mark_level);

 }

 static struct paper {

@@ -530,5 +562,9 @@

 	post();

 	doctrailer(o_pages);

 	dev_close();

+	free(mark_desc);

+	free(mark_page);

+	free(mark_offset);

+	free(mark_level);

 	return 0;

 }

--- a/post.h

+++ b/post.h

@@ -60,6 +60,8 @@

 void outeps(char *eps, int hwid, int vwid);

 void outpdf(char *pdf, int hwid, int vwid);

 void outlink(char *dst, int hwid, int vwid);

+void outname(char *name, int page, int off);

+void outmark(int n, char (*desc)[256], int *page, int *off, int *level);

 void outinfo(char *kwd, char *val);

 void outpage(void);

 void outmnt(int f);

--- a/ps.c

+++ b/ps.c

@@ -7,6 +7,7 @@

 static char ps_title[256];	/* document title */

 static char ps_author[256];	/* document author */

+static int ps_height;		/* document height in basic units */

 static int o_f, o_s, o_m;	/* font and size */

 static int o_h, o_v;		/* current user position */

 static int p_f, p_s, p_m;	/* output postscript font */

@@ -322,6 +323,39 @@

 	}

 }

+void outname(char *name, int page, int off)

+{

+	o_flush();

+	outf("[ /Dest /%s", name);

+	if (page > 0)

+		outf(" /Page %d", page);

+	if (off > 0)

+		outf(" /View [/XYZ null %d null]",

+			(ps_height - off) * 72 / dev_res);

+	outf(" /DEST pdfmark\n");

+}

+

+void outmark(int n, char (*desc)[256], int *page, int *off, int *level)

+{

+	int i, j;

+	o_flush();

+	for (i = 0; i < n; i++) {

+		int cnt = 0;

+		for (j = i + 1; j < n && level[j] > level[i]; j++)

+			if (level[j] == level[i] + 1)

+				cnt++;

+		outf("[ /Title (%s)", desc[i]);

+		if (page[i] > 0)

+			outf(" /Page %d", page[i]);

+		if (cnt > 0)

+			outf(" /Count %d", cnt);

+		if (off[i] > 0)

+			outf(" /View [/XYZ null %d null]",

+				(ps_height - off[i]) * 72 / dev_res);

+		outf(" /OUT pdfmark\n");

+	}

+}

+

 void outinfo(char *kwd, char *val)

 {

 	if (!strcmp("Author", kwd))

@@ -352,7 +386,7 @@

 		out(" /Title (%s)", ps_title);

 	if (ps_author[0])

 		out(" /Author (%s)", ps_author);

-	out("/Creator (Neatroff) /DOCINFO pdfmark\n");

+	out(" /Creator (Neatroff) /DOCINFO pdfmark\n");

 	out("%%%%Trailer\n");

 	out("done\n");

 	out("%%%%DocumentFonts: %s\n", o_fonts);

@@ -463,6 +497,7 @@

 /* pagewidth and pageheight are in tenths of a millimetre */

 void docheader(char *title, int pagewidth, int pageheight, int linewidth)

 {

+	ps_height = pageheight * dev_res / 254;

 	out("%%!PS-Adobe-2.0\n");

 	out("%%%%Version: 1.0\n");

 	if (title)