#include "halibut.h"
#include "paper.h"
+static void ps_versionid(FILE *fp, word *words);
+
paragraph *ps_config_filename(char *filename)
{
- paragraph *p;
- wchar_t *ufilename, *up;
- int len;
-
- p = mknew(paragraph);
- memset(p, 0, sizeof(*p));
- p->type = para_Config;
- p->next = NULL;
- p->fpos.filename = "<command line>";
- p->fpos.line = p->fpos.col = -1;
-
- ufilename = ufroma_dup(filename);
- len = ustrlen(ufilename) + 2 + lenof(L"ps-filename");
- p->keyword = mknewa(wchar_t, len);
- up = p->keyword;
- ustrcpy(up, L"ps-filename");
- up = uadv(up);
- ustrcpy(up, ufilename);
- up = uadv(up);
- *up = L'\0';
- assert(up - p->keyword < len);
- sfree(ufilename);
-
- return p;
+ return cmdline_cfg_simple("ps-filename", filename, NULL);
}
void ps_backend(paragraph *sourceform, keywordlist *keywords,
filename = dupstr("output.ps");
for (p = sourceform; p; p = p->next) {
- p->private_data = NULL;
if (p->type == para_Config && p->parent) {
if (!ustricmp(p->keyword, L"ps-filename")) {
sfree(filename);
- filename = utoa_dup(uadv(p->keyword));
+ filename = dupstr(adv(p->origkeyword));
}
}
}
fprintf(fp, "%%%%EndComments\n");
fprintf(fp, "%%%%BeginProlog\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.
+ * 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
+ */
+ fprintf(fp,
+ "/t {\n"
+ " exch /y exch def {\n"
+ " /x exch def\n"
+ " x type [] type eq {x aload pop scalefont setfont} if\n"
+ " x type dup 1 type eq exch 1.0 type eq or {x y moveto} if\n"
+ " x type () type eq {x show} if\n"
+ " } forall\n"
+ "} def\n");
+
fprintf(fp, "%%%%EndProlog\n");
fprintf(fp, "%%%%BeginSetup\n");
+
+ /*
+ * 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_versionid(fp, p->words);
+
/*
* Re-encode and re-metric the fonts.
*/
*/
pageno = 0;
for (page = doc->pages; page; page = page->next) {
- text_fragment *frag;
+ text_fragment *frag, *frag_end;
rect *r;
pageno++;
r->h / 4096.0, r->w / 4096.0);
}
- for (frag = page->first_text; frag; frag = frag->next) {
+ frag = page->first_text;
+ while (frag) {
+ font_encoding *fe;
+ int fs;
char *c;
- fprintf(fp, "%s %d scalefont setfont %g %g moveto (",
- frag->fe->name, frag->fontsize,
- frag->x/4096.0, frag->y/4096.0);
+ /*
+ * Collect all the adjacent text fragments with the
+ * same y-coordinate.
+ */
+ for (frag_end = frag;
+ frag_end && frag_end->y == frag->y;
+ frag_end = frag_end->next);
+
+ fprintf(fp, "%g[", frag->y / 4096.0);
+
+ fe = NULL;
+ fs = -1;
- for (c = frag->text; *c; c++) {
- if (*c == '(' || *c == ')' || *c == '\\')
- fputc('\\', fp);
- fputc(*c, fp);
+ while (frag && frag != frag_end) {
+
+ if (frag->fe != fe || frag->fontsize != fs)
+ fprintf(fp, "[%s %d]", frag->fe->name, frag->fontsize);
+ fe = frag->fe;
+ fs = frag->fontsize;
+
+ fprintf(fp, "%g(", frag->x/4096.0);
+ for (c = frag->text; *c; c++) {
+ if (*c == '(' || *c == ')' || *c == '\\')
+ fputc('\\', fp);
+ fputc(*c, fp);
+ }
+ fprintf(fp, ")");
+
+ frag = frag->next;
}
- fprintf(fp, ") show\n");
+ fprintf(fp, "]t\n");
}
fprintf(fp, "showpage\n");
sfree(filename);
}
+
+static void ps_versionid(FILE *fp, word *words)
+{
+ fprintf(fp, "%% ");
+
+ for (; words; words = words->next) {
+ char *text;
+ int type;
+
+ switch (words->type) {
+ case word_HyperLink:
+ case word_HyperEnd:
+ case word_UpperXref:
+ case word_LowerXref:
+ case word_XrefEnd:
+ case word_IndexRef:
+ continue;
+ }
+
+ type = removeattr(words->type);
+
+ switch (type) {
+ case word_Normal:
+ text = utoa_dup(words->text, CS_ASCII);
+ break;
+ case word_WhiteSpace:
+ text = dupstr(" ");
+ break;
+ case word_Quote:
+ text = dupstr("'");
+ break;
+ }
+
+ fputs(text, fp);
+ sfree(text);
+ }
+
+ fprintf(fp, "\n");
+}