2 * Convert ASCII to PostScript.
3 * Copyright (c) 1995-2002 Markku Rossi.
5 * Author: Markku Rossi <mtr@iki.fi>
9 * This file is part of GNU Enscript.
11 * Enscript is free software: you can redistribute it and/or modify
12 * it under the terms of the GNU General Public License as published by
13 * the Free Software Foundation, either version 3 of the License, or
14 * (at your option) any later version.
16 * Enscript is distributed in the hope that it will be useful,
17 * but WITHOUT ANY WARRANTY; without even the implied warranty of
18 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
19 * GNU General Public License for more details.
21 * You should have received a copy of the GNU General Public License
22 * along with Enscript. If not, see <http://www.gnu.org/licenses/>.
29 * Types and definitions.
32 /* Values for token flags. */
35 #define F_EPSF_CENTER 0x01
36 #define F_EPSF_RIGHT 0x02
37 #define M_EPSF_JUSTIFICATION 0x03
39 #define F_EPSF_NO_CPOINT_UPDATE_X 0x04
40 #define F_EPSF_NO_CPOINT_UPDATE_Y 0x08
42 #define F_EPSF_ABSOLUTE_X 0x10
43 #define F_EPSF_ABSOLUTE_Y 0x20
45 #define F_EPSF_SCALE_X 0x40
46 #define F_EPSF_SCALE_Y 0x80
49 /* Predicate to check if we are at the correct slice. */
50 #define CORRECT_SLICE() (slicing == 0 || current_slice == slice)
52 /* Predicates for the current body font. */
54 /* Is character <ch> printable. */
55 #define ISPRINT(ch) (font_ctype[(unsigned char) (ch)] != ' ')
57 /* Does character <ch> exist in current body font? */
58 #define EXISTS(ch) (font_ctype[(unsigned char) (ch)] == '*')
61 #define RESOURCE_LINE_WIDTH 75
85 /* Special escape tokens. */
104 /* Token structure. */
109 double new_x; /* Current point x after this token. */
110 double new_y; /* Current point y after this token. */
111 int new_col; /* Line column after this token. */
119 double x; /* x-offset */
120 double y; /* y-offset */
121 double w; /* width */
122 double h; /* height */
125 int llx, lly, urx, ury; /* Bounding box. */
128 unsigned int skipbuf_len;
129 unsigned int skipbuf_pos;
130 FILE *fp; /* File from which eps image is read. */
131 int pipe; /* Is <fp> opened to pipe? */
139 InputEncoding encoding;
145 typedef struct gs_token_st Token;
149 * Prototypes for static functions.
152 static void get_next_token ___P ((InputStream *is, double linestart,
153 double linepos, unsigned int col,
154 double linew, Token *token));
156 static void dump_ps_page_header ___P ((char *fname, int empty));
158 static void dump_ps_page_trailer ();
160 static void dump_empty_page ();
163 * Recognize a EPS file described by <token>. Returns 1 if file was a
164 * valid EPS file or 0 otherwise. File is accepted if it starts with
165 * the PostScript magic `%!' and it has a valid `%%BoundingBox' DSC
168 static int recognize_eps_file ___P ((Token *token));
171 * Insert EPS file described by <token> to the output stream.
173 static void paste_epsf ___P ((Token *token));
176 * Check if InputStream <is> contains a file which can be passed
177 * through without any modifications. Returns 1 if file was passed or
180 static int do_pass_through ___P ((char *fname, InputStream *is));
183 * Read one float dimension from InputStream <is>. If <units> is
184 * true, number can be followed by an optional unit specifier. If
185 * <horizontal> is true, dimension is horizontal, otherwise it is
186 * vertical (this is used to find out how big `line' units are).
188 static double read_float ___P ((InputStream *is, int units, int horizontal));
191 * Print linenumber <linenum> to the beginning of the current line.
192 * Current line start is specified by point (x, y).
194 static void print_line_number ___P ((double x, double y, double space,
195 double margin, unsigned int linenum));
197 /* Send PostScript to the output file. */
198 #define OUTPUT(body) \
206 /* Divert output to tmp file so the total page count can be counted. */
207 static void divert ();
209 /* Paste diverted data to the output and patch the total page counts. */
210 static void undivert ();
213 * Handle two-side printing related binding options. This function is
214 * called once for each even-numbered page.
216 static void handle_two_side_options ();
222 unsigned int current_pagenum = 0; /* The number of the current page. */
223 unsigned int total_pages_in_file;
224 unsigned int input_filenum = 0;
225 unsigned int current_file_linenum;
226 int first_pagenum_for_file;
227 char *fname = NULL; /* The name of the current input file. */
234 /* Have we dumped PS header? */
235 static int ps_header_dumped = 0;
238 static FILE *divertfp = NULL;
240 /* Current output() file. */
241 static FILE *cofp = NULL;
243 /* To print or not to print, that's a question. */
244 static int do_print = 1;
246 /* Is ^@font{}-defined font active? */
247 static int user_fontp = 0;
249 /* The user ^@font{}-defined font. */
250 static char *user_font_name;
251 static FontPoint user_font_pt;
252 static InputEncoding user_font_encoding;
254 /* Is ^@color{}-defined color active? */
255 static int user_colorp = 0;
257 /* The user ^@color{}-defined color. */
258 static Color user_color;
260 /* Is ^@bgcolor{}-defined color active? */
261 static int user_bgcolorp = 0;
263 /* The user ^@bgcolor{}-defined color. */
264 static Color user_bgcolor;
266 /* The last linenumber printed by print_line_number(). */
267 static unsigned int print_line_number_last;
269 /* Registers to store X-coordinates with the ^@savex{} escape.
270 Initially these are uninitialized. */
271 static double xstore[256];
283 /* Dump PS header only once. */
284 if (ps_header_dumped)
286 ps_header_dumped = 1;
292 OUTPUT ((cofp, "%s\n", output_first_line));
293 OUTPUT ((cofp, "%%%%BoundingBox: %d %d %d %d\n", media->llx, media->lly,
294 media->urx, media->ury));
295 OUTPUT ((cofp, "%%%%Title: %s\n", title));
296 OUTPUT ((cofp, "%%%%For: %s\n", passwd->pw_gecos));
297 OUTPUT ((cofp, "%%%%Creator: %s\n", version_string));
298 OUTPUT ((cofp, "%%%%CreationDate: %s\n", date_string));
299 OUTPUT ((cofp, "%%%%Orientation: %s\n",
300 ((nup > 1) && nup_landscape)
301 || ((nup == 1) && landscape) ? "Landscape" : "Portrait"));
302 OUTPUT ((cofp, "%%%%Pages: (atend)\n"));
303 OUTPUT ((cofp, "%%%%DocumentMedia: %s %d %d 0 () ()\n",
304 media->name, media->w, media->h));
305 OUTPUT ((cofp, "%%%%DocumentNeededResources: (atend)\n"));
307 if (count_key_value_set (pagedevice) > 0)
308 OUTPUT ((cofp, "%%%%LanguageLevel: 2\n"));
310 OUTPUT ((cofp, "%%%%EndComments\n"));
314 * Procedure Definitions.
317 OUTPUT ((cofp, "%%%%BeginProlog\n"));
320 OUTPUT ((cofp, "%%%%BeginResource: procset Enscript-Prolog %s\n",
322 if (!paste_file ("enscript", ".pro"))
323 FATAL ((stderr, _("couldn't find prolog \"%s\": %s\n"), "enscript.pro",
325 OUTPUT ((cofp, "%%%%EndResource\n"));
327 /* Encoding vector. */
328 OUTPUT ((cofp, "%%%%BeginResource: procset Enscript-Encoding-%s %s\n",
329 encoding_name, ps_version_string));
330 if (!paste_file (encoding_name, ".enc"))
331 FATAL ((stderr, _("couldn't find encoding file \"%s.enc\": %s\n"),
332 encoding_name, strerror (errno)));
333 OUTPUT ((cofp, "%%%%EndResource\n"));
335 OUTPUT ((cofp, "%%%%EndProlog\n"));
342 OUTPUT ((cofp, "%%%%BeginSetup\n"));
344 /* Download fonts. */
345 for (got = strhash_get_first (download_fonts, &cp, &j, (void **) &cp2); got;
346 got = strhash_get_next (download_fonts, &cp, &j, (void **) &cp2))
349 /* For each required font, emit %%IncludeResouce comment. */
350 for (got = strhash_get_first (res_fonts, &cp, &j, (void **) &cp2); got;
351 got = strhash_get_next (res_fonts, &cp, &j, (void **) &cp2))
352 OUTPUT ((cofp, "%%%%IncludeResource: font %s\n", cp));
354 OUTPUT ((cofp, "/HFpt_w %g def\n", HFpt.w));
355 OUTPUT ((cofp, "/HFpt_h %g def\n", HFpt.h));
358 /* Select our fonts. */
360 /* Header font HF. */
361 OUTPUT ((cofp, "/%s /HF-gs-font MF\n", HFname));
363 "/HF /HF-gs-font findfont [HFpt_w 0 0 HFpt_h 0 0] makefont def\n"));
365 /* Our default typing font F. */
366 OUTPUT ((cofp, "/%s /F-gs-font MF\n", Fname));
367 OUTPUT ((cofp, "/F-gs-font %g %g SF\n", Fpt.w, Fpt.h));
370 if (underlay != NULL)
372 OUTPUT ((cofp, "/ul_str (%s) def\n", underlay));
373 OUTPUT ((cofp, "/ul_w_ptsize %g def\n", ul_ptsize.w));
374 OUTPUT ((cofp, "/ul_h_ptsize %g def\n", ul_ptsize.h));
375 OUTPUT ((cofp, "/ul_gray %g def\n", ul_gray));
376 OUTPUT ((cofp, "/ul_x %g def\n", ul_x));
377 OUTPUT ((cofp, "/ul_y %g def\n", ul_y));
378 OUTPUT ((cofp, "/ul_angle %g def\n", ul_angle));
379 OUTPUT ((cofp, "/ul_style %d def\n", ul_style));
380 OUTPUT ((cofp, "/%s /F-ul-font MF\n", ul_font));
381 OUTPUT ((cofp, "/ul_font /F-ul-font findfont \
382 [ul_w_ptsize 0 0 ul_h_ptsize 0 0] makefont def\n"));
385 /* Number of copies. */
386 OUTPUT ((cofp, "/#copies %d def\n", num_copies));
390 OUTPUT ((cofp, "true page_prefeed\n"));
392 /* Statusdict definitions. */
393 if (count_key_value_set (statusdict) > 0)
395 OUTPUT ((cofp, "%% Statustdict definitions:\nstatusdict begin\n "));
397 for (got = strhash_get_first (statusdict, &cp, &j, (void **) &cp2); got;
398 got = strhash_get_next (statusdict, &cp, &j, (void **) &cp2))
400 j = strlen (cp) + 1 + strlen (cp2) + 1;
401 if (i + j > RESOURCE_LINE_WIDTH)
403 OUTPUT ((cofp, "\n "));
406 OUTPUT ((cofp, "%s %s ", cp2, cp));
409 OUTPUT ((cofp, "\nend\n"));
412 /* Page device definitions. */
414 (count_key_value_set (pagedevice) > 0 || generate_PageSize))
416 OUTPUT ((cofp, "%% Pagedevice definitions:\n"));
417 OUTPUT ((cofp, "gs_languagelevel 1 gt {\n <<\n "));
420 for (got = strhash_get_first (pagedevice, &cp, &j, (void **) &cp2); got;
421 got = strhash_get_next (pagedevice, &cp, &j, (void **) &cp2))
423 j = strlen (cp2) + 1 + strlen (cp) + 2;
424 if (i + j > RESOURCE_LINE_WIDTH)
426 OUTPUT ((cofp, "\n "));
429 OUTPUT ((cofp, "/%s %s ", cp, cp2));
433 if (generate_PageSize)
435 if (i + 21 > RESOURCE_LINE_WIDTH)
437 OUTPUT ((cofp, "\n "));
440 OUTPUT ((cofp, "/PageSize [%d %d] ", media->w, media->h));
444 OUTPUT ((cofp, "\n >> setpagedevice\n} if\n"));
448 * Dump header procset. Header must come after all font inclusions
449 * and enscript's dynamic state definition.
451 if (header != HDR_NONE)
454 if (header == HDR_SIMPLE)
457 hdr = fancy_header_name;
459 OUTPUT ((cofp, "%%%%BeginResource: procset Enscript-Header-%s %s\n",
460 hdr, ps_version_string));
461 if (!paste_file (hdr, ".hdr"))
463 _("couldn't find header definition file \"%s.hdr\": %s\n"),
464 hdr, strerror (errno)));
465 OUTPUT ((cofp, "%%%%EndResource\n"));
469 * Count output width and height here; we can't do it earlier because
470 * header might have just allocated some extra space.
472 d_output_w = d_page_w;
473 d_output_h = d_page_h - d_header_h - d_footer_h;
475 /* Dump our current dynamic state. */
476 OUTPUT ((cofp, "/d_page_w %d def\n", d_page_w));
477 OUTPUT ((cofp, "/d_page_h %d def\n", d_page_h));
479 OUTPUT ((cofp, "/d_header_x %d def\n", 0));
480 OUTPUT ((cofp, "/d_header_y %d def\n", d_output_h + d_footer_h));
481 OUTPUT ((cofp, "/d_header_w %d def\n", d_header_w));
482 OUTPUT ((cofp, "/d_header_h %d def\n", d_header_h));
484 OUTPUT ((cofp, "/d_footer_x %d def\n", 0));
485 OUTPUT ((cofp, "/d_footer_y %d def\n", 0));
486 OUTPUT ((cofp, "/d_footer_w %d def\n", d_header_w));
487 OUTPUT ((cofp, "/d_footer_h %d def\n", d_footer_h));
489 OUTPUT ((cofp, "/d_output_w %d def\n", d_output_w));
490 OUTPUT ((cofp, "/d_output_h %d def\n", d_output_h));
491 OUTPUT ((cofp, "/cols %d def\n", num_columns));
493 OUTPUT ((cofp, "%%%%EndSetup\n"));
503 unsigned int nup_subpage;
505 if (!ps_header_dumped)
506 /* No header, let's be consistent and forget trailer also. */
509 /* The possible pending N-up showpage. */
510 nup_subpage = (total_pages - 1) % nup;
511 if (nup > 1 && nup_subpage + 1 != nup)
512 /* N-up showpage missing. */
513 OUTPUT ((cofp, "_R\nS\n"));
517 OUTPUT ((cofp, "%%%%Trailer\n"));
520 OUTPUT ((cofp, "false page_prefeed\n"));
522 OUTPUT ((cofp, "%%%%Pages: %d\n", total_pages));
524 /* Document needed resources. */
527 OUTPUT ((cofp, "%%%%DocumentNeededResources: font "));
528 i = 32; /* length of the previous string. */
529 for (got = strhash_get_first (res_fonts, &cp, &j, &value); got;
530 got = strhash_get_next (res_fonts, &cp, &j, &value))
532 if (i + strlen (cp) + 1 > RESOURCE_LINE_WIDTH)
534 OUTPUT ((cofp, "\n%%%%+ font "));
535 i = 9; /* length of the previous string. */
537 OUTPUT ((cofp, "%s ", cp));
538 i += strlen (cp) + 1;
540 OUTPUT ((cofp, "\n%%%%EOF\n"));
545 process_file (char *fname_arg, InputStream *is, int is_toc)
550 double linewidth; /* Line width in points. */
554 unsigned int line_column;
555 unsigned int current_linenum;
556 double linenumber_space = 0;
557 double linenumber_margin = 0;
559 int reuse_last_token = 0;
560 unsigned int current_slice = 1;
561 int last_wrapped_line = -1;
562 int last_spaced_file_linenum = -1;
563 int save_current_pagenum;
568 fname = xstrdup (fname_arg);
570 /* Init page number and line counters. */
571 if (!continuous_page_numbers)
573 total_pages_in_file = 0;
574 current_file_linenum = start_line_number;
577 * Count possible line number spaces. This should be enought for 99999
580 linenumber_space = CHAR_WIDTH ('0') * 5 + 1.0;
581 linenumber_margin = CHAR_WIDTH (':') + CHAR_WIDTH ('m');
583 /* We got a new input file. */
586 /* We haven't printed any line numbers yet. */
587 print_line_number_last = (unsigned int) -1;
589 if (pass_through || output_language_pass_through)
590 if (do_pass_through (fname, is))
594 /* We have work to do, let's give header a chance to dump itself. */
598 * Align files to the file_align boundary, this is handy for two-side
601 while ((total_pages % file_align) != 0)
607 MESSAGE (1, (stderr, _("processing file \"%s\"...\n"), fname));
609 linewidth = d_output_w / num_columns - 2 * d_output_x_margin
612 /* Save the current running page number for possible toc usage. */
613 first_pagenum_for_file = total_pages + 1;
616 * Divert our output to a temp file. We will re-process it
617 * afterwards to patch, for example, the number of pages in the
622 /* Process this input file. */
625 /* Start a new page. */
628 for (col = 0; !done && col < num_columns; col++)
630 /* Move to the beginning of the column <col>. */
631 lx = x = col * d_output_w / (float) num_columns + d_output_x_margin
633 lineend = lx + linewidth;
635 ly = y = d_footer_h + d_output_h - d_output_y_margin - LINESKIP;
641 if (line_numbers && line_column == 0
642 && (current_file_linenum != last_spaced_file_linenum))
644 /* Forward x by the amount needed by our line numbers. */
645 x += linenumber_space + linenumber_margin;
646 last_spaced_file_linenum = current_file_linenum;
650 if (!reuse_last_token)
651 get_next_token (is, lx, x, line_column, lineend, &token);
652 reuse_last_token = 0;
655 * Page header printing is delayed to this point because
656 * we want to handle files ending with a newline character
657 * with care. If the last newline would cause a pagebreak,
658 * otherwise we would print page header to the non-existent
659 * next page and that would be ugly ;)
662 if (token.type == tEOF)
669 * Now we know that we are going to make marks to this page
670 * => print page header.
678 total_pages_in_file++;
680 /* Check page ranges. */
681 if (page_ranges == NULL)
686 for (pr = page_ranges; pr; pr = pr->next)
688 if (pr->odd || pr->even)
690 if ((pr->odd && (current_pagenum % 2) == 1)
691 || (pr->even && (current_pagenum % 2) == 0))
699 if (pr->start <= current_pagenum
700 && current_pagenum <= pr->end)
714 save_current_pagenum = current_pagenum;
716 current_pagenum = toc_pagenum;
719 dump_ps_page_header (fname, 0);
723 current_pagenum = save_current_pagenum;
726 /* Print line highlight. */
727 if (line_column == 0 && line_highlight_gray < 1.0)
728 OUTPUT ((cofp, "%g %g %g %g %g line_highlight\n",
729 lx, (y - baselineskip
730 + (font_bbox_lly * Fpt.h / UNITS_PER_POINT)),
731 linewidth, Fpt.h + baselineskip,
732 line_highlight_gray));
734 /* Print line numbers if needed. */
735 if (line_numbers && line_column == 0 && token.type != tFORMFEED)
736 print_line_number (lx, y, linenumber_space, linenumber_margin,
737 current_file_linenum);
739 /* Check rest of tokens. */
743 switch (formfeed_type)
745 case FORMFEED_COLUMN:
753 case FORMFEED_HCOLUMN:
755 * Advance y-coordinate to the next even
756 * `horizontal_column_height' position.
761 current_row = (ly - y) / horizontal_column_height;
762 y = ly - (current_row + 1) * horizontal_column_height;
764 /* Check the end of the page. */
765 if (y < d_footer_h + d_output_y_margin)
773 if (CORRECT_SLICE ())
777 OUTPUT ((cofp, "%g %g %g %g %g (%s) bgs\n", x, y,
778 Fpt.h + baselineskip,
780 - (font_bbox_lly * Fpt.h / UNITS_PER_POINT),
784 else if (user_bgcolorp)
786 OUTPUT ((cofp, "%g %g %g %g %g %g %g (%s) bgcs\n",
787 x, y, Fpt.h + baselineskip,
789 - (font_bbox_lly * Fpt.h / UNITS_PER_POINT),
797 OUTPUT ((cofp, "%g %g M\n(%s) s\n", x, y,
802 line_column = token.new_col;
805 case tCARRIAGE_RETURN:
806 /* Just reset the x-coordinate. */
807 x = col * d_output_w / (float) num_columns
808 + d_output_x_margin + line_indent;
813 case tWRAPPED_NEWLINE:
814 if (token.type == tNEWLINE)
816 current_file_linenum++;
825 /* Mark wrapped line marks. */
826 switch (mark_wrapped_lines_style)
833 OUTPUT ((cofp, "%g %g M (+) s\n", x, y));
837 /* Print some fancy graphics. */
839 "%g %g %g %g %d wrapped_line_mark\n",
841 mark_wrapped_lines_style));
846 * For wrapped newlines, decrement y only if
847 * we are not slicing the input.
852 /* Count the wrapped lines here. */
853 if (!slicing || current_slice > slice)
854 if (current_file_linenum != last_wrapped_line)
857 num_truncated_lines++;
858 last_wrapped_line = current_file_linenum;
863 if (current_linenum >= lines_per_page
864 || y < d_footer_h + d_output_y_margin)
867 x = col * d_output_w / (float) num_columns
868 + d_output_x_margin + line_indent;
873 /* Count current point movement. */
875 if (token.flags & F_EPSF_ABSOLUTE_Y)
879 token.new_y += token.u.epsf.y - token.u.epsf.h;
881 if (token.flags & F_EPSF_ABSOLUTE_X)
885 token.new_x += token.u.epsf.x;
889 /* Justification flags overwrite <x_ofs>. */
890 if (token.flags & F_EPSF_CENTER)
891 token.new_x = lx + (linewidth - token.u.epsf.w) / 2;
892 if (token.flags & F_EPSF_RIGHT)
893 token.new_x = lx + (linewidth - token.u.epsf.w);
895 /* Check if eps file does not fit to this column. */
896 if ((token.flags & F_EPSF_NO_CPOINT_UPDATE_Y) == 0
897 && token.new_y < d_footer_h + d_output_y_margin)
899 if (current_linenum == 0)
902 * At the beginning of the column, warn user
905 MESSAGE (0, (stderr, _("EPS file \"%s\" is too \
907 token.u.epsf.filename));
911 /* Must start a new column. */
912 reuse_last_token = 1;
918 if (CORRECT_SLICE ())
921 /* Update current point? */
922 if (!(token.flags & F_EPSF_NO_CPOINT_UPDATE_Y))
924 if (!(token.flags & F_EPSF_NO_CPOINT_UPDATE_X))
925 x = token.new_x + token.u.epsf.w;
927 if (y < d_footer_h + d_output_y_margin)
932 /* Select a new current font. */
933 if (line_column == 0)
937 /* Check for possible line skip change. */
938 if (token.u.font.name[0] == '\0')
939 newh = default_Fpt.h;
941 newh = token.u.font.size.h;
945 /* We need a different line skip value. */
949 * We must check for page overflow after we have
954 MESSAGE (2, (stderr, "^@font="));
955 if (token.u.font.name[0] == '\0')
957 /* Select the default font. */
958 Fpt.w = default_Fpt.w;
959 Fpt.h = default_Fpt.h;
960 Fname = default_Fname;
961 encoding = default_Fencoding;
962 OUTPUT ((cofp, "/F-gs-font %g %g SF\n", Fpt.w, Fpt.h));
967 strhash_put (res_fonts, token.u.font.name,
968 strlen (token.u.font.name) + 1,
970 if (token.u.font.encoding == default_Fencoding)
971 OUTPUT ((cofp, "/%s %g %g SUF\n", token.u.font.name,
972 token.u.font.size.w, token.u.font.size.h));
973 else if (token.u.font.encoding == ENC_PS)
974 OUTPUT ((cofp, "/%s %g %g SUF_PS\n", token.u.font.name,
975 token.u.font.size.w, token.u.font.size.h));
978 _("user font encoding can be only the system's default or `ps'")));
980 xrealloc(user_font_name, strlen(token.u.font.name) + 1);
981 strcpy (user_font_name, token.u.font.name);
982 user_font_pt.w = token.u.font.size.w;
983 user_font_pt.h = token.u.font.size.h;
984 user_font_encoding = token.u.font.encoding;
987 Fpt.w = user_font_pt.w;
988 Fpt.h = user_font_pt.h;
989 Fname = user_font_name;
990 encoding = user_font_encoding;
992 MESSAGE (2, (stderr, "%s %g/%gpt\n", Fname, Fpt.w, Fpt.h));
996 * Check for page overflow in that case that we were
997 * at the first column and font were changed to a bigger
1000 if (y < d_footer_h + d_output_y_margin)
1005 /* Select a new color. */
1006 MESSAGE (2, (stderr, "^@color{%f %f %f}\n",
1010 if (token.u.color.r == token.u.color.g
1011 && token.u.color.g == token.u.color.b
1012 && token.u.color.b == 0.0)
1014 /* Select the default color (black). */
1015 OUTPUT ((cofp, "0 setgray\n"));
1020 OUTPUT ((cofp, "%g %g %g setrgbcolor\n",
1025 user_color.r = token.u.color.r;
1026 user_color.g = token.u.color.g;
1027 user_color.b = token.u.color.b;
1033 /* Select a new background color. */
1034 MESSAGE (2, (stderr, "^@bgcolor{%f %f %f}\n",
1039 if (token.u.color.r == token.u.color.g
1040 && token.u.color.g == token.u.color.b
1041 && token.u.color.b == 1.0)
1043 /* Select the default bgcolor (white). */
1048 user_bgcolor.r = token.u.color.r;
1049 user_bgcolor.g = token.u.color.g;
1050 user_bgcolor.b = token.u.color.b;
1057 fname = xstrdup (token.u.filename);
1060 case tSETPAGENUMBER:
1061 current_pagenum = token.u.i - 1;
1065 if (current_linenum >= token.u.i)
1070 xstore[(unsigned char) token.u.i] = x;
1074 x = xstore[(unsigned char) token.u.i];
1078 OUTPUT ((cofp, "%g %g M\n%s\n", x, y, token.u.str));
1079 xfree (token.u.str);
1084 FATAL ((stderr, "process_file(): got illegal token %d",
1090 ; /* ULTRIX's cc needs this line. */
1095 dump_ps_page_trailer ();
1099 * Reset print flag to true so all the required document trailers
1100 * etc. get printed properly.
1104 /* Undivert our output from the temp file to our output stream. */
1107 /* Table of contents? */
1111 int save_total_pages = total_pages;
1113 /* use first pagenum in file for toc */
1114 total_pages = first_pagenum_for_file;
1116 cp = format_user_string ("TOC", toc_fmt_string);
1117 fprintf (toc_fp, "%s\n", cp);
1120 total_pages = save_total_pages;
1131 /* Check if character <ch> fits to current line. */
1132 #define FITS_ON_LINE(ch) ((linepos + CHAR_WIDTH (ch) < linew) || col == 0)
1134 /* Is line buffer empty? */
1135 #define BUFFER_EMPTY() (bufpos == 0)
1137 /* Unconditionally append character <ch> to the line buffer. */
1138 #define APPEND_CHAR(ch) \
1140 if (bufpos >= buflen) \
1143 buffer = xrealloc (buffer, buflen); \
1145 buffer[bufpos++] = ch; \
1149 * Copy character <ch> (it fits to this line) to output buffer and
1150 * update current point counters.
1155 linepos += CHAR_WIDTH (ch); \
1159 #define UNEMIT(ch) \
1161 linepos -= CHAR_WIDTH (ch); \
1165 #define ISSPACE(ch) ((ch) == ' ' || (ch) == '\t')
1166 #define ISOCTAL(ch) ('0' <= (ch) && (ch) <= '7')
1168 /* Read one special escape from input <fp>. */
1173 SpecialEscape escape;
1176 {"comment", ESC_COMMENT},
1179 {"color", ESC_COLOR},
1180 {"bgcolor", ESC_BGCOLOR},
1181 {"newpage", ESC_NEWPAGE},
1183 {"setfilename", ESC_SETFILENAME},
1184 {"setpagenumber", ESC_SETPAGENUMBER},
1185 {"shade", ESC_SHADE},
1186 {"bggray", ESC_BGGRAY},
1187 {"escape", ESC_ESCAPE},
1188 {"savex", ESC_SAVEX},
1189 {"loadx", ESC_LOADX},
1195 read_special_escape (InputStream *is, Token *token)
1202 /* Get escape name. */
1203 for (i = 0; i < sizeof (escname) - 1 && (ch = is_getc (is)) != EOF; i++)
1215 /* Lookup escape. */
1216 for (e = 0; escapes[e].name; e++)
1217 if (strcmp (escname, escapes[e].name) == 0)
1219 if (escapes[e].name == NULL)
1220 FATAL ((stderr, _("unknown special escape: %s"), escname));
1223 * The epsf escape takes optional arguments so it must be handled
1226 if (escapes[e].escape == ESC_EPSF)
1233 token->u.epsf.x = 0.0;
1234 token->u.epsf.y = 0.0;
1235 token->u.epsf.h = 0.0;
1236 token->u.epsf.pipe = 0;
1242 while ((ch = is_getc (is)) != EOF && ch != ']')
1246 case 'c': /* center justification */
1247 token->flags &= ~M_EPSF_JUSTIFICATION;
1248 token->flags |= F_EPSF_CENTER;
1251 case 'n': /* no current point update */
1252 /* Check the next character. */
1257 token->flags |= F_EPSF_NO_CPOINT_UPDATE_X;
1261 token->flags |= F_EPSF_NO_CPOINT_UPDATE_Y;
1266 token->flags |= F_EPSF_NO_CPOINT_UPDATE_X;
1267 token->flags |= F_EPSF_NO_CPOINT_UPDATE_Y;
1272 case 'r': /* right justification */
1273 token->flags &= ~M_EPSF_JUSTIFICATION;
1274 token->flags |= F_EPSF_RIGHT;
1278 case 's': /* scale */
1279 /* Check the next character. */
1284 token->flags |= F_EPSF_SCALE_X;
1285 token->u.epsf.xscale = read_float (is, 0, 1);
1289 token->flags |= F_EPSF_SCALE_Y;
1290 token->u.epsf.yscale = read_float (is, 0, 0);
1295 token->flags |= F_EPSF_SCALE_X;
1296 token->flags |= F_EPSF_SCALE_Y;
1297 token->u.epsf.xscale = token->u.epsf.yscale
1298 = read_float (is, 0, 1);
1303 case 'x': /* x-position */
1304 token->u.epsf.x = read_float (is, 1, 1);
1306 /* Check the next character. */
1311 token->flags |= F_EPSF_ABSOLUTE_X;
1320 case 'y': /* y-position */
1321 token->u.epsf.y = - read_float (is, 1, 0);
1323 /* Check the next character. */
1328 token->flags |= F_EPSF_ABSOLUTE_Y;
1337 case 'h': /* height */
1338 token->u.epsf.h = read_float (is, 1, 0);
1346 FATAL ((stderr, _("illegal option %c for ^@epsf escape"),
1352 _("malformed ^@epsf escape: no ']' after options")));
1358 /* Read filename. */
1359 for (i = 0; (ch = is_getc (is)) != EOF && ch != '}'; i++)
1361 token->u.epsf.filename[i] = ch;
1362 if (i + 1 >= sizeof (token->u.epsf.filename))
1364 _("too long file name for ^@epsf escape:\n%.*s"),
1365 i, token->u.epsf.filename));
1368 FATAL ((stderr, _("unexpected EOF while scanning ^@epsf escape")));
1370 token->u.epsf.filename[i] = '\0';
1371 token->type = tEPSF;
1374 FATAL ((stderr, _("malformed ^@epsf escape: no '{' found")));
1377 * Now we have a valid epsf-token in <token>. Let's read BoundingBox
1378 * and do some calculations.
1380 if (!recognize_eps_file (token))
1381 /* Recognize eps has already printed error message so we are done. */
1382 token->type = tNONE;
1385 /* Some fixups for x and y dimensions. */
1386 token->u.epsf.y += LINESKIP - 1;
1387 if (token->u.epsf.h != 0.0)
1388 token->u.epsf.h -= 1.0;
1390 /* Count picture's width and height. */
1392 pw = token->u.epsf.urx - token->u.epsf.llx;
1393 ph = token->u.epsf.ury - token->u.epsf.lly;
1395 /* The default scale. */
1396 if (token->u.epsf.h == 0.0)
1399 scale = token->u.epsf.h / ph;
1401 if ((token->flags & F_EPSF_SCALE_X) == 0)
1402 token->u.epsf.xscale = scale;
1403 if ((token->flags & F_EPSF_SCALE_Y) == 0)
1404 token->u.epsf.yscale = scale;
1406 pw *= token->u.epsf.xscale;
1407 ph *= token->u.epsf.yscale;
1409 token->u.epsf.w = pw;
1410 token->u.epsf.h = ph;
1413 else if (escapes[e].escape == ESC_COMMENT)
1415 /* Comment the rest of this line. */
1416 while ((ch = is_getc (is)) != EOF && ch != nl)
1418 token->type = tNONE;
1426 * Handle the rest of the escapes.
1429 /* Read argument. */
1432 FATAL ((stderr, _("malformed %s escape: no '{' found"),
1437 (ch = is_getc (is)) != EOF && (parenlevel > 0 || ch != '}'); i++)
1445 if (i + 1 >= sizeof (buf))
1446 FATAL ((stderr, _("too long argument for %s escape:\n%.*s"),
1447 escapes[i].name, i, buf));
1451 /* And now handle the escape. */
1452 switch (escapes[e].escape)
1455 strcpy (token->u.font.name, buf);
1457 /* Check for the default font. */
1458 if (strcmp (token->u.font.name, "default") == 0)
1459 token->u.font.name[0] = '\0';
1462 if (!parse_font_spec (token->u.font.name, &cp,
1463 &token->u.font.size,
1464 &token->u.font.encoding))
1465 FATAL ((stderr, _("malformed font spec for ^@font escape: %s"),
1466 token->u.font.name));
1468 strcpy (token->u.font.name, cp);
1471 token->type = tFONT;
1476 /* Check for the default color. */
1477 if (strcmp (buf, "default") == 0)
1481 if (escapes[e].escape == ESC_BGCOLOR)
1484 token->u.color.r = val;
1485 token->u.color.g = val;
1486 token->u.color.b = val;
1492 got = sscanf (buf, "%g %g %g",
1501 _("malformed color spec for ^@%s escape: %s"),
1502 escapes[e].escape == ESC_COLOR
1503 ? "color" : "bgcolor",
1508 token->u.color.g = token->u.color.b = token->u.color.r;
1512 /* Got all three components. */
1516 if (escapes[e].escape == ESC_COLOR)
1517 token->type = tCOLOR;
1519 token->type = tBGCOLOR;
1523 line_highlight_gray = atof (buf);
1524 if (line_highlight_gray < 0.0 || line_highlight_gray > 1.0)
1525 FATAL ((stderr, _("invalid value for ^@shade escape: %s"), buf));
1527 token->type = tNONE;
1531 bggray = atof (buf);
1532 if (bggray < 0.0 || bggray > 1.0)
1533 FATAL ((stderr, _("invalid value for ^@bggray escape: %s"), buf));
1535 token->type = tNONE;
1539 if (strcmp (buf, "default") == 0)
1540 escape_char = default_escape_char;
1542 escape_char = atoi (buf);
1543 token->type = tNONE;
1546 case ESC_SETFILENAME:
1547 strcpy (token->u.filename, buf);
1548 token->type = tSETFILENAME;
1551 case ESC_SETPAGENUMBER:
1552 token->u.i = atoi (buf);
1553 token->type = tSETPAGENUMBER;
1558 token->u.i = 1; /* The default is the first line. */
1560 token->u.i = atoi (buf);
1561 token->type = tNEWPAGE;
1565 token->type = tSAVEX;
1566 token->u.i = atoi (buf);
1570 token->type = tLOADX;
1571 token->u.i = atoi (buf);
1575 token->u.str = xstrdup (buf);
1588 /* Get next token from input file <fp>. */
1590 get_next_token (InputStream *is, double linestart, double linepos,
1591 unsigned int col, double linew, Token *token)
1593 static unsigned char *buffer = NULL; /* output buffer */
1594 static unsigned int buflen = 0; /* output buffer's length */
1595 unsigned int bufpos = 0; /* current position in output buffer */
1599 static int pending_token = tNONE;
1600 unsigned int original_col = col;
1602 if (pending_token != tNONE)
1604 token->type = pending_token;
1605 pending_token = tNONE;
1618 if (BUFFER_EMPTY ())
1630 * One of these is the newline character and the other one
1631 * is carriage return.
1635 /* The newline character. */
1636 if (BUFFER_EMPTY ())
1638 token->type = tNEWLINE;
1649 /* The carriage return character. */
1650 if (BUFFER_EMPTY ())
1652 token->type = tCARRIAGE_RETURN;
1666 i = tabsize - (col % tabsize);
1669 if (FITS_ON_LINE (' '))
1680 /* Proportional font. */
1682 double grid = tabsize * CHAR_WIDTH (' ');
1685 /* Move linepos to the next multiple of <grid>. */
1686 linepos = (((int) ((linepos - linestart) / grid) + 1) * grid
1688 if (linepos >= linew)
1696 if (BUFFER_EMPTY ())
1698 if (interpret_formfeed)
1699 token->type = tFORMFEED;
1701 token->type = tNEWLINE;
1712 /* Handle special escapes. */
1713 if (special_escapes && ch == escape_char)
1715 if (BUFFER_EMPTY ())
1717 /* Interpret special escapes. */
1718 read_special_escape (is, token);
1719 if (token->type != tNONE)
1723 * Got tNONE special escape => read_special_escape()
1724 * has already done what was needed. Just read more.
1736 /* Handle backspace character. */
1739 if (BUFFER_EMPTY () || !EXISTS (buffer[bufpos - 1]))
1740 linepos -= CHAR_WIDTH ('m');
1742 linepos -= CHAR_WIDTH (buffer[bufpos - 1]);
1748 /* Check normal characters. */
1751 if (FITS_ON_LINE (ch))
1754 * Print control characters (and optionally
1755 * characters greater than 127) in the escaped form
1756 * so PostScript interpreter will not hang on them.
1758 if (ch < 040 || (clean_7bit && ch >= 0200))
1762 sprintf (buf, "\\%03o", ch);
1763 for (i = 0; buf[i]; i++)
1764 APPEND_CHAR (buf[i]);
1766 /* Update current point counters manually. */
1767 linepos += CHAR_WIDTH (ch);
1770 else if (ch == '(' || ch == ')' || ch == '\\')
1772 /* These must be quoted in PostScript strings. */
1785 else if (ISPRINT (ch))
1787 /* Printable, but do not exists in this font. */
1788 if (FITS_ON_LINE ('?'))
1791 if (missing_chars[ch]++ == 0)
1792 num_missing_chars++;
1806 * Non-printable and does not exist in current font, print
1807 * it in the format specified by non_printable_format.
1810 if (non_printable_chars[ch]++ == 0)
1811 num_non_printable_chars++;
1813 switch (non_printable_format)
1819 case NPF_QUESTIONMARK:
1834 sprintf (buf, "\\%03o", ch);
1839 for (i = 0; buf[i]; i++)
1840 len += CHAR_WIDTH (buf[i]);
1842 if (linepos + len < linew || col == 0)
1845 for (i = 0; buf[i]; i++)
1848 APPEND_CHAR ('\\'); /* Escape '\\' characters. */
1864 /* Check for wrapped line. */
1865 if (done == DONE_WRAP)
1867 /* This line is too long. */
1869 if (line_end == LE_TRUNCATE)
1871 /* Truncate this line. */
1872 while ((ch = is_getc (is)) != EOF && ch != nl)
1875 else if (!BUFFER_EMPTY () && line_end == LE_WORD_WRAP)
1879 if (ISSPACE (buffer[bufpos - 1]))
1881 /* Skip all whitespace from the end of the wrapped line. */
1882 while ((w = is_getc (is)) != EOF && ISSPACE (w))
1888 /* Find the previous word boundary for the wrap. */
1889 for (w = bufpos - 1; w >= 0 && !ISSPACE (buffer[w]); w--)
1892 if (w > 0 || original_col > 0)
1895 * Ok, we found a word boundary. Now we must unemit
1896 * characters from the buffer to the intput stream.
1899 * - bufpos is unsigned integer variable
1900 * - some characters are escaped with '\\'
1901 * - some characters are printed in octal notation
1907 /* Check for '(', ')' and '\\'. */
1909 && (buffer[bufpos] == '('
1910 || buffer[bufpos] == ')'
1911 || buffer[bufpos] == '\\')
1912 && buffer[bufpos - 1] == '\\')
1914 is_ungetc (buffer[bufpos], is);
1915 UNEMIT (buffer[bufpos]);
1918 /* Check the octal notations "\\%03o". */
1919 else if (bufpos - 2 > w
1920 && ISOCTAL (buffer[bufpos])
1921 && ISOCTAL (buffer[bufpos - 1])
1922 && ISOCTAL (buffer[bufpos - 2])
1923 && buffer[bufpos - 3] == '\\')
1928 * It is a potential octal character. Now we
1929 * must process the buffer from the beginning
1930 * and see if `bufpos - 3' really starts a character.
1932 for (ti = w; ti < bufpos - 3; ti++)
1934 if (buffer[ti] == '\\')
1936 if (ISOCTAL (buffer[ti + 1]))
1941 tti < 3 && ISOCTAL (buffer[ti + 1]);
1946 /* Simple escape. */
1952 * If <ti> is equal to <bufpos - 3>, we found
1953 * an octal character, otherwise the leading
1954 * backslash at <bufpos - 3> belongs to the
1955 * previous character.
1957 if (ti == bufpos - 3)
1961 tch = (((buffer[bufpos - 2] - '0') << 6)
1962 + ((buffer[bufpos - 1] - '0') << 3)
1963 + (buffer[bufpos] - '0'));
1964 is_ungetc (tch, is);
1969 /* Normal character. */
1974 /* Normal character, just unget it. */
1976 is_ungetc (buffer[bufpos], is);
1977 UNEMIT (buffer[bufpos]);
1987 if (line_end == LE_TRUNCATE)
1990 num_truncated_lines++;
1991 pending_token = tNEWLINE;
1994 pending_token = tWRAPPED_NEWLINE;
1997 pending_token = tEOF;
2001 token->type = tSTRING;
2002 token->u.str = (char *) buffer;
2003 token->new_x = linepos;
2004 token->new_col = col;
2009 dump_ps_page_header (char *fname, int empty)
2011 char *dirc, *basec, *fdir, *ftail;
2015 unsigned int nup_subpage;
2017 /* The N-up printing sub-page. */
2018 nup_subpage = (total_pages - 1) % nup;
2020 /* Split fname into fdir and ftail. */
2021 dirc = strdup(fname);
2022 basec = strdup(fname);
2023 fdir = dirname(dirc);
2024 ftail = basename(basec);
2028 /* N-up printing is active. */
2031 if (nup_subpage == 0)
2033 /* This is a real page start. */
2038 OUTPUT ((cofp, "%%%%Page: (%d-%d) %d\n", current_pagenum,
2039 current_pagenum + nup - 1, total_pages / nup + 1));
2043 OUTPUT ((cofp, "%%%%Page: (%s:%3d-%3d) %d\n", ftail,
2044 current_pagenum, current_pagenum + nup - 1,
2045 total_pages / nup + 1));
2050 OUTPUT ((cofp, "%%%%BeginPageSetup\n_S\n"));
2052 if ((total_pages / nup + 1) % 2 == 0)
2053 /* Two-side binding options for the even pages. */
2054 handle_two_side_options ();
2056 #define PRINT_BOUNDING_BOXES 0
2058 #if PRINT_BOUNDING_BOXES
2060 "%d %d moveto %d %d lineto %d %d lineto %d %d lineto closepath stroke\n",
2061 media->llx, media->lly, media->llx, media->ury,
2062 media->urx, media->ury, media->urx, media->lly));
2068 OUTPUT ((cofp, "90 rotate\n%d %d translate\n",
2069 media->lly, -media->urx));
2071 OUTPUT ((cofp, "%d %d translate\n", media->llx, media->lly));
2076 OUTPUT ((cofp, "90 rotate\n%d %d translate\n",
2077 media->lly, -media->llx));
2079 OUTPUT ((cofp, "%d %d translate\n", media->llx, media->ury));
2084 /* Page start comment. */
2088 OUTPUT ((cofp, "%sPage: (%d) %d\n", cstr, current_pagenum, total_pages));
2092 OUTPUT ((cofp, "%sPage: (%s:%3d) %d\n", cstr, ftail, current_pagenum,
2101 OUTPUT ((cofp, "%sBeginPageSetup\n_S\n", cstr));
2107 OUTPUT ((cofp, "%% N-up sub-page %d/%d\n", nup_subpage + 1, nup));
2112 xm = nup_subpage % nup_columns;
2113 ym = nup_subpage / nup_columns;
2117 xm = nup_subpage / nup_rows;
2118 ym = nup_subpage % nup_rows;
2121 OUTPUT ((cofp, "%d %d translate\n",
2122 xm * (nup_width + nup_xpad),
2123 ym * (nup_height + nup_ypad)));
2129 xm = nup_subpage / nup_rows;
2130 ym = nup_subpage % nup_rows;
2134 xm = nup_subpage % nup_columns;
2135 ym = nup_subpage / nup_columns;
2138 OUTPUT ((cofp, "%d %d translate\n",
2139 xm * (nup_width + nup_xpad),
2140 -((int) (ym * (nup_height + nup_ypad) + nup_height))));
2142 OUTPUT ((cofp, "%g dup scale\n", nup_scale));
2144 /* And finally, the real page setup. */
2146 OUTPUT ((cofp, "90 rotate\n%d %d translate\n", 0, -d_page_h));
2150 /* No N-up printing. */
2152 if (total_pages % 2 == 0)
2153 /* Two-side binding options for the even pages. */
2154 handle_two_side_options ();
2157 OUTPUT ((cofp, "90 rotate\n%d %d translate\n",
2158 media->lly, -media->urx));
2160 OUTPUT ((cofp, "%d %d translate\n", media->llx, media->lly));
2163 /* Some constants etc. */
2164 OUTPUT ((cofp, "/pagenum %d def\n", current_pagenum));
2166 cp = escape_string (fname);
2167 OUTPUT ((cofp, "/fname (%s) def\n", cp));
2170 cp = escape_string (fdir);
2171 OUTPUT ((cofp, "/fdir (%s) def\n", cp));
2175 cp = escape_string (ftail);
2176 OUTPUT ((cofp, "/ftail (%s) def\n", cp));
2180 /* Do we have a pending ^@font{} font? */
2183 if (encoding == default_Fencoding)
2184 OUTPUT ((cofp, "/%s %g %g SUF\n", Fname, Fpt.w, Fpt.h));
2186 /* This must be the case. */
2187 OUTPUT ((cofp, "/%s %g %g SUF_PS\n", Fname, Fpt.w, Fpt.h));
2190 /* Dump user defined strings. */
2191 if (count_key_value_set (user_strings) > 0)
2193 OUTPUT ((cofp, "%% User defined strings:\n"));
2194 for (got = strhash_get_first (user_strings, &cp, &i, (void **) &cp2);
2196 got = strhash_get_next (user_strings, &cp, &i, (void **) &cp2))
2198 cp2 = format_user_string ("%Format", cp2);
2199 OUTPUT ((cofp, "/%s (%s) def\n", cp, cp2));
2204 /* User supplied header? */
2209 char *h_right = NULL;
2211 h_left = format_user_string ("page header", page_header);
2212 h_center = strchr (h_left, '|');
2218 h_right = strchr (h_center, '|');
2226 OUTPUT ((cofp, "/user_header_p true def\n"));
2227 OUTPUT ((cofp, "/user_header_left_str (%s) def\n", h_left));
2228 OUTPUT ((cofp, "/user_header_center_str (%s) def\n",
2229 h_center ? h_center : ""));
2230 OUTPUT ((cofp, "/user_header_right_str (%s) def\n",
2231 h_right ? h_right : ""));
2235 OUTPUT ((cofp, "/user_header_p false def\n"));
2237 /* User supplied footer? */
2242 char *f_right = NULL;
2244 f_left = format_user_string ("page footer", page_footer);
2245 f_center = strchr (f_left, '|');
2251 f_right = strchr (f_center, '|');
2259 OUTPUT ((cofp, "/user_footer_p true def\n"));
2260 OUTPUT ((cofp, "/user_footer_left_str (%s) def\n", f_left));
2261 OUTPUT ((cofp, "/user_footer_center_str (%s) def\n",
2262 f_center ? f_center : ""));
2263 OUTPUT ((cofp, "/user_footer_right_str (%s) def\n",
2264 f_right ? f_right : ""));
2268 OUTPUT ((cofp, "/user_footer_p false def\n"));
2270 OUTPUT ((cofp, "%%%%EndPageSetup\n"));
2273 * Mark standard page decorations.
2278 /* Highlight bars. */
2280 OUTPUT ((cofp, "%d %f %d %f highlight_bars\n", highlight_bars,
2281 LINESKIP, d_output_y_margin, highlight_bar_gray));
2284 if (underlay != NULL)
2286 if (ul_position_p || ul_angle_p)
2287 OUTPUT ((cofp, "user_underlay\n"));
2289 OUTPUT ((cofp, "underlay\n"));
2293 if (num_columns > 1 && (header == HDR_FANCY || borders))
2294 OUTPUT ((cofp, "column_lines\n"));
2296 /* Borders around columns. */
2298 OUTPUT ((cofp, "column_borders\n"));
2308 OUTPUT ((cofp, "do_header\n"));
2313 /* Do we have a pending ^@color{} color? */
2315 OUTPUT ((cofp, "%g %g %g setrgbcolor\n", user_color.r, user_color.g,
2321 dump_ps_page_trailer ()
2323 unsigned int nup_subpage = (total_pages - 1) % nup;
2325 OUTPUT ((cofp, "_R\n"));
2329 if (nup_subpage + 1 == nup)
2330 /* Real end of page. */
2331 OUTPUT ((cofp, "_R\nS\n"));
2334 OUTPUT ((cofp, "S\n"));
2343 unsigned int nup_subpage = (total_pages - 1) % nup;
2345 if (nup_subpage == 0)
2347 /* Real start of the page, must do it the harder way. */
2348 dump_ps_page_header ("", 1);
2349 OUTPUT ((cofp, "_R\n"));
2352 OUTPUT ((cofp, "%%Page: (-) %d\n", total_pages));
2354 if (nup_subpage + 1 == nup)
2355 /* This is the last page on this sheet, dump us. */
2356 OUTPUT ((cofp, "_R\nS\n"));
2359 OUTPUT ((cofp, "%%%%Page: (-) %d\nS\n", total_pages));
2364 recognize_eps_file (Token *token)
2371 float llx, lly, urx, ury;
2373 MESSAGE (2, (stderr, "^@epsf=\"%s\"\n", token->u.epsf.filename));
2375 i = strlen (token->u.epsf.filename);
2377 /* Read EPS data from file. */
2378 filename = tilde_subst (token->u.epsf.filename);
2380 token->u.epsf.fp = fopen (filename, "rb");
2383 if (token->u.epsf.fp == NULL)
2385 if (token->u.epsf.filename[0] != '/')
2387 /* Name is not absolute, let's lookup path. */
2390 ctx.name = token->u.epsf.filename;
2392 ctx.fullname = buffer_alloc ();
2394 if (pathwalk (libpath, file_lookup, &ctx))
2395 token->u.epsf.fp = fopen (buffer_ptr (ctx.fullname), "rb");
2397 buffer_free (ctx.fullname);
2399 if (token->u.epsf.fp == NULL)
2401 MESSAGE (0, (stderr, _("couldn't open EPS file \"%s\": %s\n"),
2402 token->u.epsf.filename, strerror (errno)));
2407 /* Find BoundingBox DSC comment. */
2411 token->u.epsf.skipbuf = NULL;
2412 token->u.epsf.skipbuf_len = 0;
2413 token->u.epsf.skipbuf_pos = 0;
2415 while (fgets (buf, sizeof (buf), token->u.epsf.fp))
2419 /* Append data to the skip buffer. */
2421 if (i + token->u.epsf.skipbuf_pos >= token->u.epsf.skipbuf_len)
2423 token->u.epsf.skipbuf_len += 8192;
2424 token->u.epsf.skipbuf = xrealloc (token->u.epsf.skipbuf,
2425 token->u.epsf.skipbuf_len);
2427 memcpy (token->u.epsf.skipbuf + token->u.epsf.skipbuf_pos, buf, i);
2428 token->u.epsf.skipbuf_pos += i;
2430 /* Check the "%!" magic cookie. */
2433 if (buf[0] != '%' || buf[1] != '!')
2437 _("EPS file \"%s\" does not start with \"%%!\" magic\n"),
2438 token->u.epsf.filename));
2443 #define BB_DSC "%%BoundingBox:"
2445 if (strncmp (buf, BB_DSC, strlen (BB_DSC)) == 0)
2447 i = sscanf (buf + strlen (BB_DSC), "%f %f %f %f",
2448 &llx, &lly, &urx, &ury);
2453 /* Skip possible whitespace. */
2454 for (i = strlen (BB_DSC);
2455 buf[i] && (buf[i] == ' ' || buf[i] == '\t');
2458 #define BB_DSC_ATEND "(atend)"
2459 if (strncmp (buf + i, BB_DSC_ATEND, strlen (BB_DSC_ATEND)) != 0)
2461 /* No, this BoundingBox comment is corrupted. */
2462 MESSAGE (0, (stderr, _("EPS file \"%s\" contains malformed \
2463 %%%%BoundingBox row:\n\"%.*s\"\n"),
2464 token->u.epsf.filename, strlen (buf) - 1, buf));
2470 /* It was a valid EPS file. */
2472 /* We store bounding box in int format. */
2473 token->u.epsf.llx = llx;
2474 token->u.epsf.lly = lly;
2475 token->u.epsf.urx = urx;
2476 token->u.epsf.ury = ury;
2484 /* Check that we found the BoundingBox comment. */
2487 MESSAGE (0, (stderr, _("EPS file \"%s\" is not a valid EPS file\n"),
2488 token->u.epsf.filename));
2489 if (token->u.epsf.pipe)
2490 pclose (token->u.epsf.fp);
2492 fclose (token->u.epsf.fp);
2493 xfree (token->u.epsf.skipbuf);
2497 MESSAGE (2, (stderr, "BoundingBox: %d %d %d %d\n",
2498 token->u.epsf.llx, token->u.epsf.lly,
2499 token->u.epsf.urx, token->u.epsf.ury));
2506 paste_epsf (Token *token)
2511 /* EPSF import header. */
2512 OUTPUT ((cofp, "BeginEPSF\n"));
2513 OUTPUT ((cofp, "%g %g translate\n", token->new_x, token->new_y));
2514 OUTPUT ((cofp, "%g %g scale\n", token->u.epsf.xscale, token->u.epsf.yscale));
2515 OUTPUT ((cofp, "%d %d translate\n", -token->u.epsf.llx,
2516 -token->u.epsf.lly));
2517 OUTPUT ((cofp, "%d %d %d %d Box clip newpath\n",
2518 token->u.epsf.llx - 1,
2519 token->u.epsf.lly - 1,
2520 token->u.epsf.urx - token->u.epsf.llx + 2,
2521 token->u.epsf.ury - token->u.epsf.lly + 2));
2522 OUTPUT ((cofp, "%%%%BeginDocument: %s%s\n", token->u.epsf.filename,
2523 token->u.epsf.pipe ? "|" : ""));
2527 /* Dump skip buffer. */
2528 fwrite (token->u.epsf.skipbuf, 1, token->u.epsf.skipbuf_pos, cofp);
2531 while ((i = fread (buf, 1, sizeof (buf), token->u.epsf.fp)) != 0)
2532 fwrite (buf, 1, i, cofp);
2535 /* Add a newline to keep comments correct */
2536 OUTPUT ((cofp, "\n"));
2538 /* EPSF import trailer. */
2539 OUTPUT ((cofp, "%%%%EndDocument\nEndEPSF\n"));
2542 if (token->u.epsf.pipe)
2543 pclose (token->u.epsf.fp);
2545 fclose (token->u.epsf.fp);
2546 xfree (token->u.epsf.skipbuf);
2551 read_float (InputStream *is, int units, int horizontal)
2557 for (i = 0; (i < sizeof (buf) - 1
2558 && (ch = is_getc (is)) != EOF
2559 && ISNUMBERDIGIT (ch));
2574 case 'c': /* centimeters */
2578 case 'p': /* PostScript points */
2581 case 'i': /* inches */
2589 case 'l': /* lines or characters */
2591 val *= CHAR_WIDTH ('m');
2602 /* Magics used to recognize different pass-through files. */
2606 unsigned int magiclen;
2609 } pass_through_magics[] =
2611 {"%!", 2, "PostScript", -2},
2612 {"\004%!", 3, "PostScript", -2},
2613 {"\033E", 2, "PCL", -2},
2614 {"\033%", 2, "PCL", -2},
2620 do_pass_through (char *fname, InputStream *is)
2623 unsigned long saved_pos = is->bufpos;
2626 if (output_language_pass_through)
2629 _("passing through all input files for output language `%s'\n"),
2634 * Try to recognize pass-through files.
2637 for (i = 0; pass_through_magics[i].magic; i++)
2639 for (j = 0; j < pass_through_magics[i].magiclen; j++)
2643 || ch != (unsigned char) pass_through_magics[i].magic[j])
2647 if (j >= pass_through_magics[i].magiclen)
2648 /* The <i>th one matched. */
2652 * Try the next one, but first, seek the input stream to its
2655 is->bufpos = saved_pos;
2658 /* Did we find any? */
2659 if (pass_through_magics[i].magic == NULL)
2663 /* Yes, it really is a pass-through file. Now do the pass through. */
2665 is->bufpos += pass_through_magics[i].revert_delta;
2667 if (ps_header_dumped)
2669 /* A pass-through file between normal ASCII files, obey DSC. */
2672 * XXX I don't know how to handle PCL files... Let's hope none
2673 * mixes them with the normal ASCII files.
2677 "%%%%Page: (%s) -1\n_S\n%%%%BeginDocument: %s\n",
2681 MESSAGE (1, (stderr, _("passing through %s file \"%s\"\n"),
2682 pass_through_magics[i].name, fname));
2685 /* And now, do the actual pass-through. */
2688 /* Note: this will be written directly to the <ofp>. */
2689 fwrite (is->buf + is->bufpos, 1, is->data_in_buf - is->bufpos, ofp);
2690 is->bufpos = is->data_in_buf;
2692 /* Read more data to the input buffer. */
2698 if (!output_language_pass_through)
2700 if (ps_header_dumped)
2702 * XXX How to end a PCL file mixed between ASCII files?
2704 OUTPUT ((cofp, "%%%%EndDocument\n_R\n"));
2712 print_line_number (double x, double y, double space, double margin,
2713 unsigned int linenum)
2718 char *saved_Fname = "";
2719 FontPoint saved_Fpt;
2720 InputEncoding saved_Fencoding;
2725 /* Do not print linenumbers for wrapped lines. */
2726 if (linenum == print_line_number_last)
2728 print_line_number_last = linenum;
2732 /* Re-select our default typing font. */
2733 saved_Fname = Fname;
2734 saved_Fpt.w = Fpt.w;
2735 saved_Fpt.h = Fpt.h;
2736 saved_Fencoding = encoding;
2738 Fname = default_Fname;
2739 Fpt.w = default_Fpt.w;
2740 Fpt.h = default_Fpt.h;
2741 encoding = default_Fencoding;
2743 OUTPUT ((cofp, "/F-gs-font %g %g SF\n", Fpt.w, Fpt.h));
2747 /* Count linenumber string length. */
2748 sprintf (buf, "%d", linenum);
2749 for (i = 0; buf[i]; i++)
2750 len += CHAR_WIDTH (buf[i]);
2752 /* Print line numbers. */
2753 OUTPUT ((cofp, "%g %g M (%s:) s\n", x + space - len, y, buf));
2757 /* Switch back to the user font. */
2758 Fname = saved_Fname;
2759 Fpt.w = saved_Fpt.w;
2760 Fpt.h = saved_Fpt.h;
2761 encoding = saved_Fencoding;
2763 OUTPUT ((cofp, "/%s %g %g SUF\n", Fname, Fpt.w, Fpt.h));
2770 * The name of the divert file, shared between divert() and undivert()
2773 static char divertfname[512];
2778 assert (divertfp == NULL);
2780 /* Open divert file. */
2782 divertfp = tmpfile ();
2783 if (divertfp == NULL)
2784 FATAL ((stderr, _("couldn't create temporary divert file: %s"),
2798 assert (divertfp != NULL);
2800 if (fseek (divertfp, 0, SEEK_SET) != 0)
2801 FATAL ((stderr, _("couldn't rewind divert file: %s"), strerror (errno)));
2803 while (fgets (buf, sizeof (buf), divertfp))
2805 if (strncmp (buf, "%%BeginDocument", 15) == 0)
2807 else if (strncmp (buf, "%%EndDocument", 13) == 0)
2812 if (strncmp (buf, "% User defined strings", 22) == 0)
2815 while (fgets (buf, sizeof (buf), divertfp))
2817 if (strncmp (buf, "%%EndPageSetup", 14) == 0)
2820 /* Patch total pages to the user defined strings. */
2821 cp = strchr (buf, '\001');
2826 fprintf (ofp, "%d", total_pages_in_file);
2827 fputs (cp + 1, ofp);
2846 handle_two_side_options ()
2848 if (rotate_even_pages)
2849 /* Rotate page 180 degrees. */
2850 OUTPUT ((cofp, "180 rotate\n%d %d translate\n",
2851 -media->w, -media->h));
2853 if (swap_even_page_margins)
2854 OUTPUT ((cofp, "%d 0 translate\n",
2855 -(media->llx - (media->w - media->urx))));