*/
#include <assert.h>
+#include <stdarg.h>
#include "halibut.h"
#include "paper.h"
+/* Ideal number of characters per line, for use in PostScript code */
+#define PS_WIDTH 79
+/* Absolute maxiumum characters per line, for use in DSC comments */
+#define PS_MAXWIDTH 255
+
static void ps_comment(FILE *fp, char const *leader, word *words);
+static void ps_string_len(FILE *fp, int *cc, char const *str, int len);
+static void ps_string(FILE *fp, int *cc, char const *str);
paragraph *ps_config_filename(char *filename)
{
FILE *fp;
char *filename;
paragraph *p;
+ outline_element *oe;
+ int noe;
+ int cc; /* Character count on current line */
IGNORE(keywords);
IGNORE(idx);
}
}
- fp = fopen(filename, "w");
+ if (!strcmp(filename, "-"))
+ fp = stdout;
+ else
+ fp = fopen(filename, "w");
if (!fp) {
error(err_cantopenw, filename);
return;
fprintf(fp, "%%!PS-Adobe-3.0\n");
fprintf(fp, "%%%%Creator: Halibut, %s\n", version);
- fprintf(fp, "%%%%DocumentData: Clean8Bit\n");
+ fprintf(fp, "%%%%DocumentData: Clean7Bit\n");
fprintf(fp, "%%%%LanguageLevel: 1\n");
for (pageno = 0, page = doc->pages; page; page = page->next)
pageno++;
fprintf(fp, "%%%%DocumentNeededResources:\n");
for (fe = doc->fonts->head; fe; fe = fe->next)
/* XXX This may request the same font multiple times. */
- fprintf(fp, "%%%%+ font %s\n", fe->font->info->name);
- fprintf(fp, "%%%%DocumentSuppliedResources: procset Halibut 0 0\n");
+ if (!fe->font->info->fontfile)
+ fprintf(fp, "%%%%+ font %s\n", fe->font->info->name);
+ fprintf(fp, "%%%%DocumentSuppliedResources: procset Halibut 0 3\n");
+ for (fe = doc->fonts->head; fe; fe = fe->next)
+ /* XXX This may request the same font multiple times. */
+ if (fe->font->info->fontfile)
+ fprintf(fp, "%%%%+ font %s\n", fe->font->info->name);
fprintf(fp, "%%%%EndComments\n");
fprintf(fp, "%%%%BeginProlog\n");
- fprintf(fp, "%%%%BeginResource: procset Halibut 0 0\n");
+ fprintf(fp, "%%%%BeginResource: procset Halibut 0 3\n");
/*
* Supply a prologue function which allows a reasonably
* compressed representation of the text on the pages.
*
- * Expects two arguments: a y-coordinate, and then an array.
+ * "t" expects two arguments: a y-coordinate, and then an array.
* Elements of the array are processed sequentially as follows:
*
* - a number is treated as an x-coordinate
* - an array is treated as a (font, size) pair
* - a string is shown
+ *
+ * "r" takes four arguments, and behaves like "rectfill".
*/
fprintf(fp,
"/tdict 4 dict dup begin\n"
" /integertype /realtype load def\n"
" /stringtype {show} bind def\n"
"end def\n"
- "/t { tdict begin {dup type exec} forall end pop } bind def\n");
+ "/t { tdict begin {dup type exec} forall end pop } bind def\n"
+ "/r { 4 2 roll moveto 1 index 0 rlineto 0 exch rlineto\n"
+ " neg 0 rlineto closepath fill } bind def\n");
+ /*
+ * pdfmark wrappers
+ *
+ * "p" generates a named destination referencing this page.
+ * "x" generates a link to a named destination.
+ * "u" generates a link to a URI.
+ * "o" generates an outline entry.
+ * "m" generates a general pdfmark.
+ *
+ * They all do nothing if pdfmark is undefined.
+ */
+ fprintf(fp,
+ "/pdfmark where { pop\n"
+ " /p { [ /Dest 3 -1 roll /View [ /XYZ null null null ]\n"
+ " /DEST pdfmark } bind def\n"
+ " /x { [ /Dest 3 -1 roll /Rect 5 -1 roll /Border [0 0 0]\n"
+ " /Subtype /Link /ANN pdfmark } bind def\n"
+ " /u { 2 dict dup /Subtype /URI put dup /URI 4 -1 roll put\n"
+ " [ /Action 3 -1 roll /Rect 5 -1 roll /Border [0 0 0]\n"
+ " /Subtype /Link /ANN pdfmark } bind def\n"
+ " /o { [ /Count 3 -1 roll /Dest 5 -1 roll /Title 7 -1 roll\n"
+ " /OUT pdfmark } bind def\n"
+ " /m /pdfmark load def\n"
+ "}\n");
+ fprintf(fp, "{\n"
+ " /p { pop } bind def\n"
+ " /x { pop pop } bind def\n"
+ " /u /x load def\n"
+ " /o { pop pop pop } bind def\n"
+ " /m /cleartomark load def\n"
+ "} ifelse\n");
fprintf(fp, "%%%%EndResource\n");
fprintf(fp, "%%%%EndProlog\n");
fprintf(fp, "%%%%BeginSetup\n");
/*
+ * Assign a destination name to each page for pdfmark purposes.
+ */
+ pageno = 0;
+ for (page = doc->pages; page; page = page->next) {
+ char *buf;
+ pageno++;
+ buf = snewn(12, char);
+ sprintf(buf, "/p%d", pageno);
+ page->spare = buf;
+ }
+
+ /*
* This is as good a place as any to put version IDs.
*/
for (p = sourceform; p; p = p->next)
if (p->type == para_VersionID)
ps_comment(fp, "% ", p->words);
- for (fe = doc->fonts->head; fe; fe = fe->next)
+ cc = 0;
+ /*
+ * Request the correct page size. We might want to bracket this
+ * with "%%BeginFeature: *PageSize A4" or similar, and "%%EndFeature",
+ * but that would require us to have a way of getting the name of
+ * the page size given its dimensions.
+ */
+ ps_token(fp, &cc, "/setpagedevice where {\n");
+ ps_token(fp, &cc, " pop 2 dict dup /PageSize [%g %g] put setpagedevice\n",
+ doc->paper_width / FUNITS_PER_PT,
+ doc->paper_height / FUNITS_PER_PT);
+ ps_token(fp, &cc, "} if\n");
+
+ ps_token(fp, &cc, "[/PageMode/UseOutlines/DOCVIEW m\n");
+ noe = doc->n_outline_elements;
+ for (oe = doc->outline_elements; noe; oe++, noe--) {
+ char *title;
+ int titlelen, count, i;
+
+ title = pdf_outline_convert(oe->pdata->outline_title, &titlelen);
+ if (oe->level == 0) {
+ ps_token(fp, &cc, "[/Title");
+ ps_string_len(fp, &cc, title, titlelen);
+ ps_token(fp, &cc, "/DOCINFO m\n");
+ }
+
+ count = 0;
+ for (i = 1; i < noe && oe[i].level > oe->level; i++)
+ if (oe[i].level == oe->level + 1)
+ count++;
+ if (oe->level > 0) count = -count;
+
+ ps_string_len(fp, &cc, title, titlelen);
+ sfree(title);
+ ps_token(fp, &cc, "%s %d o\n",
+ (char *)oe->pdata->first->page->spare, count);
+ }
+
+ for (fe = doc->fonts->head; fe; fe = fe->next) {
/* XXX This may request the same font multiple times. */
- fprintf(fp, "%%%%IncludeResource: font %s\n", fe->font->info->name);
+ if (fe->font->info->fontfile) {
+ fprintf(fp, "%%%%BeginResource: font %s\n", fe->font->info->name);
+ if (fe->font->info->filetype == TYPE1)
+ pf_writeps(fe->font->info, fp);
+ else
+ sfnt_writeps(fe->font->info, fp);
+ fprintf(fp, "%%%%EndResource\n");
+ } else {
+ fprintf(fp, "%%%%IncludeResource: font %s\n",
+ fe->font->info->name);
+ }
+ }
/*
* Re-encode the fonts.
sprintf(fname, "f%d", font_index++);
fe->name = dupstr(fname);
- fprintf(fp, "/%s findfont dup length dict begin\n",
+ ps_token(fp, &cc, "/%s findfont dup length dict begin\n",
fe->font->info->name);
- fprintf(fp, "{1 index /FID ne {def} {pop pop} ifelse} forall\n");
- fprintf(fp, "/Encoding [\n");
+ ps_token(fp, &cc, "{1 index /FID ne {def} {pop pop} ifelse} forall\n");
+ ps_token(fp, &cc, "/Encoding [\n");
for (i = 0; i < 256; i++)
- fprintf(fp, "/%s%c", fe->vector[i] ? fe->vector[i] : ".notdef",
- i % 4 == 3 ? '\n' : ' ');
- fprintf(fp, "] def\n");
- fprintf(fp, "currentdict end\n");
- fprintf(fp, "/fontname-%s exch definefont /%s exch def\n\n",
- fe->name, fe->name);
+ ps_token(fp, &cc, "/%s", glyph_extern(fe->vector[i]));
+ ps_token(fp, &cc, "] def\n");
+ ps_token(fp, &cc, "currentdict end\n");
+ ps_token(fp, &cc, "/fontname-%s exch definefont /%s exch def\n",
+ fe->name, fe->name);
}
fprintf(fp, "%%%%EndSetup\n");
for (page = doc->pages; page; page = page->next) {
text_fragment *frag, *frag_end;
rect *r;
+ xref *xr;
+ font_encoding *fe;
+ int fs;
pageno++;
fprintf(fp, "%%%%Page: %d %d\n", pageno, pageno);
- fprintf(fp, "save\n");
-
-#if 0
- {
- xref *xr;
- /*
- * I used this diagnostic briefly to ensure that
- * cross-reference rectangles were being put where they
- * should be.
- */
- for (xr = page->first_xref; xr; xr = xr->next) {
- fprintf(fp, "gsave 0.7 setgray %g %g moveto",
- xr->lx/FUNITS_PER_PT, xr->ty/FUNITS_PER_PT);
- fprintf(fp, " %g %g lineto %g %g lineto",
- xr->lx/FUNITS_PER_PT, xr->by/FUNITS_PER_PT,
- xr->rx/FUNITS_PER_PT, xr->by/FUNITS_PER_PT);
- fprintf(fp, " %g %g lineto closepath fill grestore\n",
- xr->rx/FUNITS_PER_PT, xr->ty/FUNITS_PER_PT);
+ cc = 0;
+ ps_token(fp, &cc, "save %s p\n", (char *)page->spare);
+
+ for (xr = page->first_xref; xr; xr = xr->next) {
+ ps_token(fp, &cc, "[%g %g %g %g]",
+ xr->lx/FUNITS_PER_PT, xr->by/FUNITS_PER_PT,
+ xr->rx/FUNITS_PER_PT, xr->ty/FUNITS_PER_PT);
+ if (xr->dest.type == PAGE) {
+ ps_token(fp, &cc, "%s x\n", (char *)xr->dest.page->spare);
+ } else {
+ ps_string(fp, &cc, xr->dest.url);
+ ps_token(fp, &cc, "u\n");
}
}
-#endif
for (r = page->first_rect; r; r = r->next) {
- fprintf(fp, "%g %g moveto %g 0 rlineto 0 %g rlineto "
- "-%g 0 rlineto closepath fill\n",
+ ps_token(fp, &cc, "%g %g %g %g r\n",
r->x / FUNITS_PER_PT, r->y / FUNITS_PER_PT,
- r->w / FUNITS_PER_PT, r->h / FUNITS_PER_PT,
- r->w / FUNITS_PER_PT);
+ r->w / FUNITS_PER_PT, r->h / FUNITS_PER_PT);
}
frag = page->first_text;
+ fe = NULL;
+ fs = -1;
while (frag) {
- font_encoding *fe;
- int fs;
- char *c;
-
/*
* Collect all the adjacent text fragments with the
* same y-coordinate.
frag_end && frag_end->y == frag->y;
frag_end = frag_end->next);
- fprintf(fp, "%g[", frag->y / FUNITS_PER_PT);
-
- fe = NULL;
- fs = -1;
+ ps_token(fp, &cc, "%g[", frag->y / FUNITS_PER_PT);
while (frag && frag != frag_end) {
if (frag->fe != fe || frag->fontsize != fs)
- fprintf(fp, "[%s %d]", frag->fe->name, frag->fontsize);
+ ps_token(fp, &cc, "[%s %d]",
+ frag->fe->name, frag->fontsize);
fe = frag->fe;
fs = frag->fontsize;
- fprintf(fp, "%g(", frag->x/FUNITS_PER_PT);
- for (c = frag->text; *c; c++) {
- if (*c == '(' || *c == ')' || *c == '\\')
- fputc('\\', fp);
- fputc(*c, fp);
- }
- fprintf(fp, ")");
+ ps_token(fp, &cc, "%g", frag->x/FUNITS_PER_PT);
+ ps_string(fp, &cc, frag->text);
frag = frag->next;
}
- fprintf(fp, "]t\n");
+ ps_token(fp, &cc, "]t\n");
}
- fprintf(fp, "restore showpage\n");
+ ps_token(fp, &cc, "restore showpage\n");
}
fprintf(fp, "%%%%EOF\n");
- fclose(fp);
+ if (fp != stdout)
+ fclose(fp);
sfree(filename);
}
-static void ps_comment(FILE *fp, char const *leader, word *words)
-{
- fprintf(fp, "%s", leader);
+static void ps_comment(FILE *fp, char const *leader, word *words) {
+ int cc = 0;
+
+ cc += fprintf(fp, "%s", leader);
for (; words; words = words->next) {
char *text;
break;
}
- fputs(text, fp);
+ if (cc + strlen(text) > PS_MAXWIDTH)
+ text[PS_MAXWIDTH - cc] = 0;
+ cc += fprintf(fp, "%s", text);
sfree(text);
}
fprintf(fp, "\n");
}
+
+void ps_token(FILE *fp, int *cc, char const *fmt, ...) {
+ va_list ap;
+
+ va_start(ap, fmt);
+ if (*cc >= PS_WIDTH - 10) {
+ fprintf(fp, "\n");
+ *cc = 0;
+ }
+ *cc += vfprintf(fp, fmt, ap);
+ /* Assume that \n only occurs at the end of a string */
+ if (fmt[strlen(fmt) - 1] == '\n')
+ *cc = 0;
+}
+
+static void ps_string_len(FILE *fp, int *cc, char const *str, int len) {
+ char const *c;
+ int score = 0;
+
+ for (c = str; c < str+len; c++) {
+ if (*c < ' ' || *c > '~')
+ score += 2;
+ else if (*c == '(' || *c == ')' || *c == '\\')
+ score += 0;
+ else
+ score -= 1;
+ }
+ if (score > 0) {
+ ps_token(fp, cc, "<");
+ for (c = str; c < str+len; c++) {
+ ps_token(fp, cc, "%02X", 0xFF & (int)*c);
+ }
+ ps_token(fp, cc, ">");
+ } else {
+ *cc += fprintf(fp, "(");
+ for (c = str; c < str+len; c++) {
+ if (*cc >= PS_WIDTH - 4) {
+ fprintf(fp, "\\\n");
+ *cc = 0;
+ }
+ if (*c < ' ' || *c > '~') {
+ *cc += fprintf(fp, "\\%03o", 0xFF & (int)*c);
+ } else {
+ if (*c == '(' || *c == ')' || *c == '\\') {
+ fputc('\\', fp);
+ (*cc)++;
+ }
+ fputc(*c, fp);
+ (*cc)++;
+ }
+ }
+ *cc += fprintf(fp, ")");
+ }
+}
+
+static void ps_string(FILE *fp, int *cc, char const *str) {
+ ps_string_len(fp, cc, str, strlen(str));
+}
~mdw / sgt / halibut / blobdiff