Annotation of src/usr.bin/mandoc/term_ps.c, Revision 1.22
1.22 ! schwarze 1: /* $Id: term_ps.c,v 1.21 2014/03/21 22:17:01 schwarze Exp $ */
1.1 schwarze 2: /*
1.17 schwarze 3: * Copyright (c) 2010, 2011 Kristaps Dzonsons <kristaps@bsd.lv>
1.22 ! schwarze 4: * Copyright (c) 2014 Ingo Schwarze <schwarze@openbsd.org>
1.1 schwarze 5: *
6: * Permission to use, copy, modify, and distribute this software for any
7: * purpose with or without fee is hereby granted, provided that the above
8: * copyright notice and this permission notice appear in all copies.
9: *
10: * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
11: * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
12: * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
13: * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
14: * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
15: * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
16: * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
17: */
1.11 deraadt 18: #include <sys/types.h>
1.1 schwarze 19:
20: #include <assert.h>
21: #include <stdarg.h>
1.5 schwarze 22: #include <stdint.h>
1.1 schwarze 23: #include <stdio.h>
24: #include <stdlib.h>
25: #include <string.h>
1.4 schwarze 26: #include <time.h>
1.6 schwarze 27: #include <unistd.h>
1.1 schwarze 28:
1.10 schwarze 29: #include "mandoc.h"
1.21 schwarze 30: #include "mandoc_aux.h"
1.1 schwarze 31: #include "out.h"
32: #include "main.h"
33: #include "term.h"
34:
1.17 schwarze 35: /* These work the buffer used by the header and footer. */
36: #define PS_BUFSLOP 128
37:
1.6 schwarze 38: /* Convert PostScript point "x" to an AFM unit. */
39: #define PNT2AFM(p, x) /* LINTED */ \
1.17 schwarze 40: (size_t)((double)(x) * (1000.0 / (double)(p)->ps->scale))
1.6 schwarze 41:
42: /* Convert an AFM unit "x" to a PostScript points */
43: #define AFM2PNT(p, x) /* LINTED */ \
1.17 schwarze 44: ((double)(x) / (1000.0 / (double)(p)->ps->scale))
1.6 schwarze 45:
1.4 schwarze 46: struct glyph {
1.7 schwarze 47: unsigned short wx; /* WX in AFM */
1.4 schwarze 48: };
49:
50: struct font {
51: const char *name; /* FontName in AFM */
52: #define MAXCHAR 95 /* total characters we can handle */
53: struct glyph gly[MAXCHAR]; /* glyph metrics */
54: };
1.1 schwarze 55:
1.17 schwarze 56: struct termp_ps {
57: int flags;
58: #define PS_INLINE (1 << 0) /* we're in a word */
59: #define PS_MARGINS (1 << 1) /* we're in the margins */
60: #define PS_NEWPAGE (1 << 2) /* new page, no words yet */
61: size_t pscol; /* visible column (AFM units) */
62: size_t psrow; /* visible row (AFM units) */
63: char *psmarg; /* margin buf */
64: size_t psmargsz; /* margin buf size */
65: size_t psmargcur; /* cur index in margin buf */
66: char last; /* character buffer */
67: enum termfont lastf; /* last set font */
68: size_t scale; /* font scaling factor */
69: size_t pages; /* number of pages shown */
70: size_t lineheight; /* line height (AFM units) */
71: size_t top; /* body top (AFM units) */
72: size_t bottom; /* body bottom (AFM units) */
73: size_t height; /* page height (AFM units */
74: size_t width; /* page width (AFM units) */
1.22 ! schwarze 75: size_t lastwidth; /* page width before last ll */
1.17 schwarze 76: size_t left; /* body left (AFM units) */
77: size_t header; /* header pos (AFM units) */
78: size_t footer; /* footer pos (AFM units) */
79: size_t pdfbytes; /* current output byte */
80: size_t pdflastpg; /* byte of last page mark */
81: size_t pdfbody; /* start of body object */
82: size_t *pdfobjs; /* table of object offsets */
83: size_t pdfobjsz; /* size of pdfobjs */
84: };
85:
86: static double ps_hspan(const struct termp *,
87: const struct roffsu *);
88: static size_t ps_width(const struct termp *, int);
89: static void ps_advance(struct termp *, size_t);
90: static void ps_begin(struct termp *);
91: static void ps_closepage(struct termp *);
92: static void ps_end(struct termp *);
93: static void ps_endline(struct termp *);
94: static void ps_fclose(struct termp *);
95: static void ps_growbuf(struct termp *, size_t);
96: static void ps_letter(struct termp *, int);
97: static void ps_pclose(struct termp *);
98: static void ps_pletter(struct termp *, int);
99: static void ps_printf(struct termp *, const char *, ...);
100: static void ps_putchar(struct termp *, char);
101: static void ps_setfont(struct termp *, enum termfont);
1.22 ! schwarze 102: static void ps_setwidth(struct termp *, size_t);
1.17 schwarze 103: static struct termp *pspdf_alloc(char *);
104: static void pdf_obj(struct termp *, size_t);
105:
1.4 schwarze 106: /*
107: * We define, for the time being, three fonts: bold, oblique/italic, and
108: * normal (roman). The following table hard-codes the font metrics for
109: * ASCII, i.e., 32--127.
110: */
111:
112: static const struct font fonts[TERMFONT__MAX] = {
1.6 schwarze 113: { "Times-Roman", {
114: { 250 },
115: { 333 },
116: { 408 },
117: { 500 },
118: { 500 },
119: { 833 },
120: { 778 },
121: { 333 },
122: { 333 },
123: { 333 },
124: { 500 },
125: { 564 },
126: { 250 },
127: { 333 },
128: { 250 },
129: { 278 },
130: { 500 },
131: { 500 },
132: { 500 },
133: { 500 },
134: { 500 },
135: { 500 },
136: { 500 },
137: { 500 },
138: { 500 },
139: { 500 },
140: { 278 },
141: { 278 },
142: { 564 },
143: { 564 },
144: { 564 },
145: { 444 },
146: { 921 },
147: { 722 },
148: { 667 },
149: { 667 },
150: { 722 },
151: { 611 },
152: { 556 },
153: { 722 },
154: { 722 },
155: { 333 },
156: { 389 },
157: { 722 },
158: { 611 },
159: { 889 },
160: { 722 },
161: { 722 },
162: { 556 },
163: { 722 },
164: { 667 },
165: { 556 },
166: { 611 },
167: { 722 },
168: { 722 },
169: { 944 },
170: { 722 },
171: { 722 },
172: { 611 },
173: { 333 },
174: { 278 },
175: { 333 },
176: { 469 },
177: { 500 },
178: { 333 },
179: { 444 },
180: { 500 },
181: { 444 },
182: { 500},
183: { 444},
184: { 333},
185: { 500},
186: { 500},
187: { 278},
188: { 278},
189: { 500},
190: { 278},
191: { 778},
192: { 500},
193: { 500},
194: { 500},
195: { 500},
196: { 333},
197: { 389},
198: { 278},
199: { 500},
200: { 500},
201: { 722},
202: { 500},
203: { 500},
204: { 444},
205: { 480},
206: { 200},
207: { 480},
208: { 541},
1.4 schwarze 209: } },
1.6 schwarze 210: { "Times-Bold", {
211: { 250 },
212: { 333 },
213: { 555 },
214: { 500 },
215: { 500 },
216: { 1000 },
217: { 833 },
218: { 333 },
219: { 333 },
220: { 333 },
221: { 500 },
222: { 570 },
223: { 250 },
224: { 333 },
225: { 250 },
226: { 278 },
227: { 500 },
228: { 500 },
229: { 500 },
230: { 500 },
231: { 500 },
232: { 500 },
233: { 500 },
234: { 500 },
235: { 500 },
236: { 500 },
237: { 333 },
238: { 333 },
239: { 570 },
240: { 570 },
241: { 570 },
242: { 500 },
243: { 930 },
244: { 722 },
245: { 667 },
246: { 722 },
247: { 722 },
248: { 667 },
249: { 611 },
250: { 778 },
251: { 778 },
252: { 389 },
253: { 500 },
254: { 778 },
255: { 667 },
256: { 944 },
257: { 722 },
258: { 778 },
259: { 611 },
260: { 778 },
261: { 722 },
262: { 556 },
263: { 667 },
264: { 722 },
265: { 722 },
266: { 1000 },
267: { 722 },
268: { 722 },
269: { 667 },
270: { 333 },
271: { 278 },
272: { 333 },
273: { 581 },
274: { 500 },
275: { 333 },
276: { 500 },
277: { 556 },
278: { 444 },
279: { 556 },
280: { 444 },
281: { 333 },
282: { 500 },
283: { 556 },
284: { 278 },
285: { 333 },
286: { 556 },
287: { 278 },
288: { 833 },
289: { 556 },
290: { 500 },
291: { 556 },
292: { 556 },
293: { 444 },
294: { 389 },
295: { 333 },
296: { 556 },
297: { 500 },
298: { 722 },
299: { 500 },
300: { 500 },
301: { 444 },
302: { 394 },
303: { 220 },
304: { 394 },
305: { 520 },
1.4 schwarze 306: } },
1.6 schwarze 307: { "Times-Italic", {
308: { 250 },
309: { 333 },
310: { 420 },
311: { 500 },
312: { 500 },
313: { 833 },
314: { 778 },
315: { 333 },
316: { 333 },
317: { 333 },
318: { 500 },
319: { 675 },
320: { 250 },
321: { 333 },
322: { 250 },
323: { 278 },
324: { 500 },
325: { 500 },
326: { 500 },
327: { 500 },
328: { 500 },
329: { 500 },
330: { 500 },
331: { 500 },
332: { 500 },
333: { 500 },
334: { 333 },
335: { 333 },
336: { 675 },
337: { 675 },
338: { 675 },
339: { 500 },
340: { 920 },
341: { 611 },
342: { 611 },
343: { 667 },
344: { 722 },
345: { 611 },
346: { 611 },
347: { 722 },
348: { 722 },
349: { 333 },
350: { 444 },
351: { 667 },
352: { 556 },
353: { 833 },
354: { 667 },
355: { 722 },
356: { 611 },
357: { 722 },
358: { 611 },
359: { 500 },
360: { 556 },
361: { 722 },
362: { 611 },
363: { 833 },
364: { 611 },
365: { 556 },
366: { 556 },
367: { 389 },
368: { 278 },
369: { 389 },
370: { 422 },
371: { 500 },
372: { 333 },
373: { 500 },
374: { 500 },
375: { 444 },
376: { 500 },
377: { 444 },
378: { 278 },
379: { 500 },
380: { 500 },
381: { 278 },
382: { 278 },
383: { 444 },
384: { 278 },
385: { 722 },
386: { 500 },
387: { 500 },
388: { 500 },
389: { 500 },
390: { 389 },
391: { 389 },
392: { 278 },
393: { 500 },
394: { 444 },
395: { 667 },
396: { 444 },
397: { 444 },
398: { 389 },
399: { 400 },
400: { 275 },
401: { 400 },
402: { 541 },
1.4 schwarze 403: } },
404: };
405:
1.7 schwarze 406: void *
407: pdf_alloc(char *outopts)
408: {
409: struct termp *p;
410:
1.8 schwarze 411: if (NULL != (p = pspdf_alloc(outopts)))
412: p->type = TERMTYPE_PDF;
1.7 schwarze 413:
414: return(p);
415: }
1.1 schwarze 416:
417: void *
1.5 schwarze 418: ps_alloc(char *outopts)
1.1 schwarze 419: {
420: struct termp *p;
1.7 schwarze 421:
1.8 schwarze 422: if (NULL != (p = pspdf_alloc(outopts)))
423: p->type = TERMTYPE_PS;
1.7 schwarze 424:
425: return(p);
426: }
427:
428: static struct termp *
429: pspdf_alloc(char *outopts)
430: {
431: struct termp *p;
1.18 schwarze 432: unsigned int pagex, pagey;
433: size_t marginx, marginy, lineheight;
1.5 schwarze 434: const char *toks[2];
1.6 schwarze 435: const char *pp;
1.5 schwarze 436: char *v;
1.1 schwarze 437:
1.17 schwarze 438: p = mandoc_calloc(1, sizeof(struct termp));
439: p->enc = TERMENC_ASCII;
440: p->ps = mandoc_calloc(1, sizeof(struct termp_ps));
1.1 schwarze 441:
1.6 schwarze 442: p->advance = ps_advance;
1.1 schwarze 443: p->begin = ps_begin;
444: p->end = ps_end;
445: p->endline = ps_endline;
1.6 schwarze 446: p->hspan = ps_hspan;
447: p->letter = ps_letter;
1.22 ! schwarze 448: p->setwidth = ps_setwidth;
1.3 schwarze 449: p->width = ps_width;
1.6 schwarze 450:
1.5 schwarze 451: toks[0] = "paper";
452: toks[1] = NULL;
453:
1.6 schwarze 454: pp = NULL;
455:
1.5 schwarze 456: while (outopts && *outopts)
457: switch (getsubopt(&outopts, UNCONST(toks), &v)) {
458: case (0):
1.6 schwarze 459: pp = v;
1.5 schwarze 460: break;
461: default:
462: break;
463: }
1.4 schwarze 464:
1.6 schwarze 465: /* Default to US letter (millimetres). */
466:
467: pagex = 216;
468: pagey = 279;
469:
470: /*
471: * The ISO-269 paper sizes can be calculated automatically, but
472: * it would require bringing in -lm for pow() and I'd rather not
473: * do that. So just do it the easy way for now. Since this
474: * only happens once, I'm not terribly concerned.
475: */
476:
477: if (pp && strcasecmp(pp, "letter")) {
478: if (0 == strcasecmp(pp, "a3")) {
479: pagex = 297;
480: pagey = 420;
481: } else if (0 == strcasecmp(pp, "a4")) {
482: pagex = 210;
483: pagey = 297;
484: } else if (0 == strcasecmp(pp, "a5")) {
485: pagex = 148;
486: pagey = 210;
487: } else if (0 == strcasecmp(pp, "legal")) {
488: pagex = 216;
489: pagey = 356;
1.18 schwarze 490: } else if (2 != sscanf(pp, "%ux%u", &pagex, &pagey))
1.6 schwarze 491: fprintf(stderr, "%s: Unknown paper\n", pp);
1.19 schwarze 492: }
1.6 schwarze 493:
494: /*
495: * This MUST be defined before any PNT2AFM or AFM2PNT
496: * calculations occur.
497: */
498:
1.17 schwarze 499: p->ps->scale = 11;
1.6 schwarze 500:
501: /* Remember millimetres -> AFM units. */
502:
503: pagex = PNT2AFM(p, ((double)pagex * 2.834));
504: pagey = PNT2AFM(p, ((double)pagey * 2.834));
505:
506: /* Margins are 1/9 the page x and y. */
507:
508: marginx = /* LINTED */
509: (size_t)((double)pagex / 9.0);
510: marginy = /* LINTED */
511: (size_t)((double)pagey / 9.0);
512:
513: /* Line-height is 1.4em. */
514:
1.17 schwarze 515: lineheight = PNT2AFM(p, ((double)p->ps->scale * 1.4));
1.4 schwarze 516:
1.22 ! schwarze 517: p->ps->width = p->ps->lastwidth = (size_t)pagex;
1.18 schwarze 518: p->ps->height = (size_t)pagey;
1.17 schwarze 519: p->ps->header = pagey - (marginy / 2) - (lineheight / 2);
520: p->ps->top = pagey - marginy;
521: p->ps->footer = (marginy / 2) - (lineheight / 2);
522: p->ps->bottom = marginy;
523: p->ps->left = marginx;
524: p->ps->lineheight = lineheight;
1.4 schwarze 525:
1.6 schwarze 526: p->defrmargin = pagex - (marginx * 2);
1.1 schwarze 527: return(p);
1.22 ! schwarze 528: }
! 529:
! 530:
! 531: static void
! 532: ps_setwidth(struct termp *p, size_t width)
! 533: {
! 534: size_t lastwidth;
! 535:
! 536: lastwidth = p->ps->width;
! 537: p->ps->width = width ? width : p->ps->lastwidth;
! 538: p->ps->lastwidth = lastwidth;
1.1 schwarze 539: }
540:
541:
542: void
1.7 schwarze 543: pspdf_free(void *arg)
1.1 schwarze 544: {
545: struct termp *p;
546:
547: p = (struct termp *)arg;
548:
1.17 schwarze 549: if (p->ps->psmarg)
550: free(p->ps->psmarg);
551: if (p->ps->pdfobjs)
552: free(p->ps->pdfobjs);
1.1 schwarze 553:
1.17 schwarze 554: free(p->ps);
1.1 schwarze 555: term_free(p);
556: }
557:
558:
559: static void
560: ps_printf(struct termp *p, const char *fmt, ...)
561: {
562: va_list ap;
1.7 schwarze 563: int pos, len;
1.1 schwarze 564:
565: va_start(ap, fmt);
566:
567: /*
568: * If we're running in regular mode, then pipe directly into
569: * vprintf(). If we're processing margins, then push the data
570: * into our growable margin buffer.
571: */
572:
1.17 schwarze 573: if ( ! (PS_MARGINS & p->ps->flags)) {
1.7 schwarze 574: len = vprintf(fmt, ap);
1.1 schwarze 575: va_end(ap);
1.17 schwarze 576: p->ps->pdfbytes += /* LINTED */
1.7 schwarze 577: len < 0 ? 0 : (size_t)len;
1.1 schwarze 578: return;
579: }
580:
581: /*
582: * XXX: I assume that the in-margin print won't exceed
583: * PS_BUFSLOP (128 bytes), which is reasonable but still an
584: * assumption that will cause pukeage if it's not the case.
585: */
586:
1.9 schwarze 587: ps_growbuf(p, PS_BUFSLOP);
1.1 schwarze 588:
1.17 schwarze 589: pos = (int)p->ps->psmargcur;
1.19 schwarze 590: vsnprintf(&p->ps->psmarg[pos], PS_BUFSLOP, fmt, ap);
1.1 schwarze 591:
592: va_end(ap);
1.7 schwarze 593:
1.17 schwarze 594: p->ps->psmargcur = strlen(p->ps->psmarg);
1.1 schwarze 595: }
596:
597:
598: static void
599: ps_putchar(struct termp *p, char c)
600: {
601: int pos;
602:
603: /* See ps_printf(). */
604:
1.17 schwarze 605: if ( ! (PS_MARGINS & p->ps->flags)) {
1.13 schwarze 606: /* LINTED */
1.1 schwarze 607: putchar(c);
1.17 schwarze 608: p->ps->pdfbytes++;
1.1 schwarze 609: return;
610: }
611:
1.9 schwarze 612: ps_growbuf(p, 2);
1.1 schwarze 613:
1.17 schwarze 614: pos = (int)p->ps->psmargcur++;
615: p->ps->psmarg[pos++] = c;
616: p->ps->psmarg[pos] = '\0';
1.1 schwarze 617: }
618:
619:
1.7 schwarze 620: static void
1.8 schwarze 621: pdf_obj(struct termp *p, size_t obj)
622: {
623:
624: assert(obj > 0);
625:
1.17 schwarze 626: if ((obj - 1) >= p->ps->pdfobjsz) {
627: p->ps->pdfobjsz = obj + 128;
628: p->ps->pdfobjs = realloc
629: (p->ps->pdfobjs,
630: p->ps->pdfobjsz * sizeof(size_t));
631: if (NULL == p->ps->pdfobjs) {
1.8 schwarze 632: perror(NULL);
1.13 schwarze 633: exit((int)MANDOCLEVEL_SYSERR);
1.8 schwarze 634: }
635: }
636:
1.17 schwarze 637: p->ps->pdfobjs[(int)obj - 1] = p->ps->pdfbytes;
1.8 schwarze 638: ps_printf(p, "%zu 0 obj\n", obj);
639: }
640:
641:
642: static void
1.7 schwarze 643: ps_closepage(struct termp *p)
644: {
645: int i;
1.8 schwarze 646: size_t len, base;
647:
648: /*
649: * Close out a page that we've already flushed to output. In
650: * PostScript, we simply note that the page must be showed. In
651: * PDF, we must now create the Length, Resource, and Page node
652: * for the page contents.
653: */
1.7 schwarze 654:
1.17 schwarze 655: assert(p->ps->psmarg && p->ps->psmarg[0]);
656: ps_printf(p, "%s", p->ps->psmarg);
1.7 schwarze 657:
1.8 schwarze 658: if (TERMTYPE_PS != p->type) {
1.7 schwarze 659: ps_printf(p, "ET\n");
1.8 schwarze 660:
1.17 schwarze 661: len = p->ps->pdfbytes - p->ps->pdflastpg;
662: base = p->ps->pages * 4 + p->ps->pdfbody;
1.8 schwarze 663:
664: ps_printf(p, "endstream\nendobj\n");
665:
666: /* Length of content. */
667: pdf_obj(p, base + 1);
668: ps_printf(p, "%zu\nendobj\n", len);
669:
670: /* Resource for content. */
671: pdf_obj(p, base + 2);
672: ps_printf(p, "<<\n/ProcSet [/PDF /Text]\n");
1.7 schwarze 673: ps_printf(p, "/Font <<\n");
674: for (i = 0; i < (int)TERMFONT__MAX; i++)
675: ps_printf(p, "/F%d %d 0 R\n", i, 3 + i);
1.8 schwarze 676: ps_printf(p, ">>\n>>\n");
677:
678: /* Page node. */
679: pdf_obj(p, base + 3);
1.7 schwarze 680: ps_printf(p, "<<\n");
681: ps_printf(p, "/Type /Page\n");
682: ps_printf(p, "/Parent 2 0 R\n");
1.8 schwarze 683: ps_printf(p, "/Resources %zu 0 R\n", base + 2);
684: ps_printf(p, "/Contents %zu 0 R\n", base);
685: ps_printf(p, ">>\nendobj\n");
686: } else
687: ps_printf(p, "showpage\n");
1.7 schwarze 688:
1.17 schwarze 689: p->ps->pages++;
690: p->ps->psrow = p->ps->top;
691: assert( ! (PS_NEWPAGE & p->ps->flags));
692: p->ps->flags |= PS_NEWPAGE;
1.7 schwarze 693: }
694:
695:
1.1 schwarze 696: /* ARGSUSED */
697: static void
698: ps_end(struct termp *p)
699: {
1.8 schwarze 700: size_t i, xref, base;
1.1 schwarze 701:
702: /*
703: * At the end of the file, do one last showpage. This is the
704: * same behaviour as groff(1) and works for multiple pages as
705: * well as just one.
706: */
707:
1.17 schwarze 708: if ( ! (PS_NEWPAGE & p->ps->flags)) {
709: assert(0 == p->ps->flags);
710: assert('\0' == p->ps->last);
1.7 schwarze 711: ps_closepage(p);
1.6 schwarze 712: }
1.4 schwarze 713:
1.7 schwarze 714: if (TERMTYPE_PS == p->type) {
715: ps_printf(p, "%%%%Trailer\n");
1.17 schwarze 716: ps_printf(p, "%%%%Pages: %zu\n", p->ps->pages);
1.7 schwarze 717: ps_printf(p, "%%%%EOF\n");
718: return;
719: }
720:
1.8 schwarze 721: pdf_obj(p, 2);
722: ps_printf(p, "<<\n/Type /Pages\n");
1.7 schwarze 723: ps_printf(p, "/MediaBox [0 0 %zu %zu]\n",
1.17 schwarze 724: (size_t)AFM2PNT(p, p->ps->width),
725: (size_t)AFM2PNT(p, p->ps->height));
1.7 schwarze 726:
1.17 schwarze 727: ps_printf(p, "/Count %zu\n", p->ps->pages);
1.7 schwarze 728: ps_printf(p, "/Kids [");
729:
1.17 schwarze 730: for (i = 0; i < p->ps->pages; i++)
1.8 schwarze 731: ps_printf(p, " %zu 0 R", i * 4 +
1.17 schwarze 732: p->ps->pdfbody + 3);
1.8 schwarze 733:
1.17 schwarze 734: base = (p->ps->pages - 1) * 4 +
735: p->ps->pdfbody + 4;
1.8 schwarze 736:
737: ps_printf(p, "]\n>>\nendobj\n");
738: pdf_obj(p, base);
1.7 schwarze 739: ps_printf(p, "<<\n");
740: ps_printf(p, "/Type /Catalog\n");
741: ps_printf(p, "/Pages 2 0 R\n");
742: ps_printf(p, ">>\n");
1.17 schwarze 743: xref = p->ps->pdfbytes;
1.7 schwarze 744: ps_printf(p, "xref\n");
1.8 schwarze 745: ps_printf(p, "0 %zu\n", base + 1);
746: ps_printf(p, "0000000000 65535 f \n");
747:
748: for (i = 0; i < base; i++)
749: ps_printf(p, "%.10zu 00000 n \n",
1.17 schwarze 750: p->ps->pdfobjs[(int)i]);
1.8 schwarze 751:
1.7 schwarze 752: ps_printf(p, "trailer\n");
753: ps_printf(p, "<<\n");
1.8 schwarze 754: ps_printf(p, "/Size %zu\n", base + 1);
755: ps_printf(p, "/Root %zu 0 R\n", base);
1.7 schwarze 756: ps_printf(p, "/Info 1 0 R\n");
757: ps_printf(p, ">>\n");
758: ps_printf(p, "startxref\n");
759: ps_printf(p, "%zu\n", xref);
760: ps_printf(p, "%%%%EOF\n");
1.1 schwarze 761: }
762:
763:
764: static void
765: ps_begin(struct termp *p)
766: {
1.4 schwarze 767: time_t t;
768: int i;
1.1 schwarze 769:
1.2 schwarze 770: /*
771: * Print margins into margin buffer. Nothing gets output to the
772: * screen yet, so we don't need to initialise the primary state.
1.1 schwarze 773: */
774:
1.17 schwarze 775: if (p->ps->psmarg) {
776: assert(p->ps->psmargsz);
777: p->ps->psmarg[0] = '\0';
1.1 schwarze 778: }
779:
1.17 schwarze 780: /*p->ps->pdfbytes = 0;*/
781: p->ps->psmargcur = 0;
782: p->ps->flags = PS_MARGINS;
783: p->ps->pscol = p->ps->left;
784: p->ps->psrow = p->ps->header;
1.1 schwarze 785:
1.2 schwarze 786: ps_setfont(p, TERMFONT_NONE);
1.1 schwarze 787:
788: (*p->headf)(p, p->argf);
789: (*p->endline)(p);
790:
1.17 schwarze 791: p->ps->pscol = p->ps->left;
792: p->ps->psrow = p->ps->footer;
1.1 schwarze 793:
794: (*p->footf)(p, p->argf);
795: (*p->endline)(p);
796:
1.17 schwarze 797: p->ps->flags &= ~PS_MARGINS;
1.2 schwarze 798:
1.17 schwarze 799: assert(0 == p->ps->flags);
800: assert(p->ps->psmarg);
801: assert('\0' != p->ps->psmarg[0]);
1.1 schwarze 802:
1.2 schwarze 803: /*
804: * Print header and initialise page state. Following this,
805: * stuff gets printed to the screen, so make sure we're sane.
806: */
807:
1.4 schwarze 808: t = time(NULL);
809:
1.7 schwarze 810: if (TERMTYPE_PS == p->type) {
811: ps_printf(p, "%%!PS-Adobe-3.0\n");
812: ps_printf(p, "%%%%CreationDate: %s", ctime(&t));
813: ps_printf(p, "%%%%DocumentData: Clean7Bit\n");
814: ps_printf(p, "%%%%Orientation: Portrait\n");
815: ps_printf(p, "%%%%Pages: (atend)\n");
816: ps_printf(p, "%%%%PageOrder: Ascend\n");
817: ps_printf(p, "%%%%DocumentMedia: "
818: "Default %zu %zu 0 () ()\n",
1.17 schwarze 819: (size_t)AFM2PNT(p, p->ps->width),
820: (size_t)AFM2PNT(p, p->ps->height));
1.7 schwarze 821: ps_printf(p, "%%%%DocumentNeededResources: font");
1.4 schwarze 822:
1.7 schwarze 823: for (i = 0; i < (int)TERMFONT__MAX; i++)
824: ps_printf(p, " %s", fonts[i].name);
825:
826: ps_printf(p, "\n%%%%EndComments\n");
827: } else {
828: ps_printf(p, "%%PDF-1.1\n");
1.8 schwarze 829: pdf_obj(p, 1);
1.7 schwarze 830: ps_printf(p, "<<\n");
831: ps_printf(p, ">>\n");
832: ps_printf(p, "endobj\n");
833:
834: for (i = 0; i < (int)TERMFONT__MAX; i++) {
1.8 schwarze 835: pdf_obj(p, (size_t)i + 3);
1.7 schwarze 836: ps_printf(p, "<<\n");
837: ps_printf(p, "/Type /Font\n");
838: ps_printf(p, "/Subtype /Type1\n");
1.20 schwarze 839: ps_printf(p, "/Name /F%d\n", i);
1.7 schwarze 840: ps_printf(p, "/BaseFont /%s\n", fonts[i].name);
841: ps_printf(p, ">>\n");
842: }
843: }
844:
1.17 schwarze 845: p->ps->pdfbody = (size_t)TERMFONT__MAX + 3;
846: p->ps->pscol = p->ps->left;
847: p->ps->psrow = p->ps->top;
848: p->ps->flags |= PS_NEWPAGE;
1.6 schwarze 849: ps_setfont(p, TERMFONT_NONE);
1.1 schwarze 850: }
851:
852:
853: static void
1.4 schwarze 854: ps_pletter(struct termp *p, int c)
1.1 schwarze 855: {
1.4 schwarze 856: int f;
1.6 schwarze 857:
858: /*
859: * If we haven't opened a page context, then output that we're
860: * in a new page and make sure the font is correctly set.
861: */
862:
1.17 schwarze 863: if (PS_NEWPAGE & p->ps->flags) {
1.7 schwarze 864: if (TERMTYPE_PS == p->type) {
865: ps_printf(p, "%%%%Page: %zu %zu\n",
1.17 schwarze 866: p->ps->pages + 1,
867: p->ps->pages + 1);
1.7 schwarze 868: ps_printf(p, "/%s %zu selectfont\n",
1.17 schwarze 869: fonts[(int)p->ps->lastf].name,
870: p->ps->scale);
1.7 schwarze 871: } else {
1.17 schwarze 872: pdf_obj(p, p->ps->pdfbody +
873: p->ps->pages * 4);
1.7 schwarze 874: ps_printf(p, "<<\n");
875: ps_printf(p, "/Length %zu 0 R\n",
1.17 schwarze 876: p->ps->pdfbody + 1 +
877: p->ps->pages * 4);
1.7 schwarze 878: ps_printf(p, ">>\nstream\n");
879: }
1.17 schwarze 880: p->ps->pdflastpg = p->ps->pdfbytes;
881: p->ps->flags &= ~PS_NEWPAGE;
1.6 schwarze 882: }
1.1 schwarze 883:
1.2 schwarze 884: /*
885: * If we're not in a PostScript "word" context, then open one
886: * now at the current cursor.
887: */
888:
1.17 schwarze 889: if ( ! (PS_INLINE & p->ps->flags)) {
1.7 schwarze 890: if (TERMTYPE_PS != p->type) {
891: ps_printf(p, "BT\n/F%d %zu Tf\n",
1.17 schwarze 892: (int)p->ps->lastf,
893: p->ps->scale);
1.7 schwarze 894: ps_printf(p, "%.3f %.3f Td\n(",
1.17 schwarze 895: AFM2PNT(p, p->ps->pscol),
896: AFM2PNT(p, p->ps->psrow));
1.7 schwarze 897: } else
898: ps_printf(p, "%.3f %.3f moveto\n(",
1.17 schwarze 899: AFM2PNT(p, p->ps->pscol),
900: AFM2PNT(p, p->ps->psrow));
901: p->ps->flags |= PS_INLINE;
1.1 schwarze 902: }
903:
1.17 schwarze 904: assert( ! (PS_NEWPAGE & p->ps->flags));
1.6 schwarze 905:
1.1 schwarze 906: /*
907: * We need to escape these characters as per the PostScript
908: * specification. We would also escape non-graphable characters
909: * (like tabs), but none of them would get to this point and
910: * it's superfluous to abort() on them.
911: */
912:
913: switch (c) {
914: case ('('):
915: /* FALLTHROUGH */
916: case (')'):
917: /* FALLTHROUGH */
918: case ('\\'):
919: ps_putchar(p, '\\');
920: break;
921: default:
922: break;
923: }
924:
925: /* Write the character and adjust where we are on the page. */
1.2 schwarze 926:
1.17 schwarze 927: f = (int)p->ps->lastf;
1.4 schwarze 928:
1.12 jsg 929: if (c <= 32 || (c - 32 >= MAXCHAR)) {
1.4 schwarze 930: ps_putchar(p, ' ');
1.17 schwarze 931: p->ps->pscol += (size_t)fonts[f].gly[0].wx;
1.4 schwarze 932: return;
933: }
934:
1.6 schwarze 935: ps_putchar(p, (char)c);
1.4 schwarze 936: c -= 32;
1.17 schwarze 937: p->ps->pscol += (size_t)fonts[f].gly[c].wx;
1.1 schwarze 938: }
939:
940:
941: static void
1.2 schwarze 942: ps_pclose(struct termp *p)
943: {
944:
945: /*
946: * Spit out that we're exiting a word context (this is a
947: * "partial close" because we don't check the last-char buffer
948: * or anything).
949: */
950:
1.17 schwarze 951: if ( ! (PS_INLINE & p->ps->flags))
1.2 schwarze 952: return;
953:
1.7 schwarze 954: if (TERMTYPE_PS != p->type) {
955: ps_printf(p, ") Tj\nET\n");
956: } else
957: ps_printf(p, ") show\n");
958:
1.17 schwarze 959: p->ps->flags &= ~PS_INLINE;
1.2 schwarze 960: }
961:
962:
963: static void
964: ps_fclose(struct termp *p)
965: {
966:
967: /*
968: * Strong closure: if we have a last-char, spit it out after
969: * checking that we're in the right font mode. This will of
970: * course open a new scope, if applicable.
971: *
972: * Following this, close out any scope that's open.
973: */
974:
1.17 schwarze 975: if ('\0' != p->ps->last) {
976: if (p->ps->lastf != TERMFONT_NONE) {
1.2 schwarze 977: ps_pclose(p);
978: ps_setfont(p, TERMFONT_NONE);
979: }
1.17 schwarze 980: ps_pletter(p, p->ps->last);
981: p->ps->last = '\0';
1.2 schwarze 982: }
983:
1.17 schwarze 984: if ( ! (PS_INLINE & p->ps->flags))
1.2 schwarze 985: return;
986:
987: ps_pclose(p);
988: }
989:
990:
991: static void
1.17 schwarze 992: ps_letter(struct termp *p, int arg)
1.2 schwarze 993: {
1.17 schwarze 994: char cc, c;
995:
996: /* LINTED */
997: c = arg >= 128 || arg <= 0 ? '?' : arg;
1.2 schwarze 998:
999: /*
1000: * State machine dictates whether to buffer the last character
1001: * or not. Basically, encoded words are detected by checking if
1002: * we're an "8" and switching on the buffer. Then we put "8" in
1003: * our buffer, and on the next charater, flush both character
1004: * and buffer. Thus, "regular" words are detected by having a
1005: * regular character and a regular buffer character.
1006: */
1007:
1.17 schwarze 1008: if ('\0' == p->ps->last) {
1.2 schwarze 1009: assert(8 != c);
1.17 schwarze 1010: p->ps->last = c;
1.2 schwarze 1011: return;
1.17 schwarze 1012: } else if (8 == p->ps->last) {
1.2 schwarze 1013: assert(8 != c);
1.17 schwarze 1014: p->ps->last = '\0';
1.2 schwarze 1015: } else if (8 == c) {
1.17 schwarze 1016: assert(8 != p->ps->last);
1017: if ('_' == p->ps->last) {
1018: if (p->ps->lastf != TERMFONT_UNDER) {
1.2 schwarze 1019: ps_pclose(p);
1020: ps_setfont(p, TERMFONT_UNDER);
1021: }
1.17 schwarze 1022: } else if (p->ps->lastf != TERMFONT_BOLD) {
1.2 schwarze 1023: ps_pclose(p);
1024: ps_setfont(p, TERMFONT_BOLD);
1025: }
1.17 schwarze 1026: p->ps->last = c;
1.2 schwarze 1027: return;
1028: } else {
1.17 schwarze 1029: if (p->ps->lastf != TERMFONT_NONE) {
1.2 schwarze 1030: ps_pclose(p);
1031: ps_setfont(p, TERMFONT_NONE);
1032: }
1.17 schwarze 1033: cc = p->ps->last;
1034: p->ps->last = c;
1.2 schwarze 1035: c = cc;
1036: }
1037:
1038: ps_pletter(p, c);
1039: }
1040:
1041:
1042: static void
1.1 schwarze 1043: ps_advance(struct termp *p, size_t len)
1044: {
1045:
1.2 schwarze 1046: /*
1047: * Advance some spaces. This can probably be made smarter,
1048: * i.e., to have multiple space-separated words in the same
1049: * scope, but this is easier: just close out the current scope
1050: * and readjust our column settings.
1051: */
1.1 schwarze 1052:
1.2 schwarze 1053: ps_fclose(p);
1.17 schwarze 1054: p->ps->pscol += len;
1.1 schwarze 1055: }
1056:
1057:
1058: static void
1059: ps_endline(struct termp *p)
1060: {
1061:
1.2 schwarze 1062: /* Close out any scopes we have open: we're at eoln. */
1063:
1064: ps_fclose(p);
1065:
1066: /*
1067: * If we're in the margin, don't try to recalculate our current
1068: * row. XXX: if the column tries to be fancy with multiple
1069: * lines, we'll do nasty stuff.
1070: */
1.1 schwarze 1071:
1.17 schwarze 1072: if (PS_MARGINS & p->ps->flags)
1.6 schwarze 1073: return;
1074:
1075: /* Left-justify. */
1076:
1.17 schwarze 1077: p->ps->pscol = p->ps->left;
1.6 schwarze 1078:
1079: /* If we haven't printed anything, return. */
1080:
1.17 schwarze 1081: if (PS_NEWPAGE & p->ps->flags)
1.1 schwarze 1082: return;
1083:
1.2 schwarze 1084: /*
1085: * Put us down a line. If we're at the page bottom, spit out a
1086: * showpage and restart our row.
1087: */
1088:
1.17 schwarze 1089: if (p->ps->psrow >= p->ps->lineheight +
1090: p->ps->bottom) {
1091: p->ps->psrow -= p->ps->lineheight;
1.1 schwarze 1092: return;
1093: }
1094:
1.7 schwarze 1095: ps_closepage(p);
1.1 schwarze 1096: }
1.2 schwarze 1097:
1098:
1099: static void
1100: ps_setfont(struct termp *p, enum termfont f)
1101: {
1102:
1.4 schwarze 1103: assert(f < TERMFONT__MAX);
1.17 schwarze 1104: p->ps->lastf = f;
1.6 schwarze 1105:
1106: /*
1107: * If we're still at the top of the page, let the font-setting
1108: * be delayed until we actually have stuff to print.
1109: */
1110:
1.17 schwarze 1111: if (PS_NEWPAGE & p->ps->flags)
1.6 schwarze 1112: return;
1113:
1.7 schwarze 1114: if (TERMTYPE_PS == p->type)
1115: ps_printf(p, "/%s %zu selectfont\n",
1116: fonts[(int)f].name,
1.17 schwarze 1117: p->ps->scale);
1.7 schwarze 1118: else
1119: ps_printf(p, "/F%d %zu Tf\n",
1120: (int)f,
1.17 schwarze 1121: p->ps->scale);
1.2 schwarze 1122: }
1123:
1.3 schwarze 1124:
1.4 schwarze 1125: /* ARGSUSED */
1.3 schwarze 1126: static size_t
1.17 schwarze 1127: ps_width(const struct termp *p, int c)
1.3 schwarze 1128: {
1129:
1.4 schwarze 1130: if (c <= 32 || c - 32 >= MAXCHAR)
1.7 schwarze 1131: return((size_t)fonts[(int)TERMFONT_NONE].gly[0].wx);
1.4 schwarze 1132:
1133: c -= 32;
1.17 schwarze 1134: return((size_t)fonts[(int)TERMFONT_NONE].gly[c].wx);
1.6 schwarze 1135: }
1136:
1137:
1138: static double
1139: ps_hspan(const struct termp *p, const struct roffsu *su)
1140: {
1141: double r;
1142:
1143: /*
1144: * All of these measurements are derived by converting from the
1145: * native measurement to AFM units.
1146: */
1147:
1148: switch (su->unit) {
1149: case (SCALE_CM):
1150: r = PNT2AFM(p, su->scale * 28.34);
1151: break;
1152: case (SCALE_IN):
1153: r = PNT2AFM(p, su->scale * 72);
1154: break;
1155: case (SCALE_PC):
1156: r = PNT2AFM(p, su->scale * 12);
1157: break;
1158: case (SCALE_PT):
1159: r = PNT2AFM(p, su->scale * 100);
1160: break;
1161: case (SCALE_EM):
1.7 schwarze 1162: r = su->scale *
1.6 schwarze 1163: fonts[(int)TERMFONT_NONE].gly[109 - 32].wx;
1164: break;
1165: case (SCALE_MM):
1166: r = PNT2AFM(p, su->scale * 2.834);
1167: break;
1168: case (SCALE_EN):
1.7 schwarze 1169: r = su->scale *
1.6 schwarze 1170: fonts[(int)TERMFONT_NONE].gly[110 - 32].wx;
1171: break;
1172: case (SCALE_VS):
1.17 schwarze 1173: r = su->scale * p->ps->lineheight;
1.6 schwarze 1174: break;
1175: default:
1176: r = su->scale;
1177: break;
1178: }
1179:
1180: return(r);
1.17 schwarze 1181: }
1182:
1183: static void
1184: ps_growbuf(struct termp *p, size_t sz)
1185: {
1186: if (p->ps->psmargcur + sz <= p->ps->psmargsz)
1187: return;
1188:
1189: if (sz < PS_BUFSLOP)
1190: sz = PS_BUFSLOP;
1191:
1192: p->ps->psmargsz += sz;
1193:
1194: p->ps->psmarg = mandoc_realloc
1195: (p->ps->psmarg, p->ps->psmargsz);
1.3 schwarze 1196: }
1.6 schwarze 1197: