Annotation of src/usr.bin/mandoc/term_ps.c, Revision 1.21
1.21 ! schwarze 1: /* $Id: term_ps.c,v 1.20 2014/01/05 21:21:08 schwarze Exp $ */
1.1 schwarze 2: /*
1.17 schwarze 3: * Copyright (c) 2010, 2011 Kristaps Dzonsons <kristaps@bsd.lv>
1.1 schwarze 4: *
5: * Permission to use, copy, modify, and distribute this software for any
6: * purpose with or without fee is hereby granted, provided that the above
7: * copyright notice and this permission notice appear in all copies.
8: *
9: * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
10: * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
11: * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
12: * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
13: * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
14: * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
15: * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
16: */
1.11 deraadt 17: #include <sys/types.h>
1.1 schwarze 18:
19: #include <assert.h>
20: #include <stdarg.h>
1.5 schwarze 21: #include <stdint.h>
1.1 schwarze 22: #include <stdio.h>
23: #include <stdlib.h>
24: #include <string.h>
1.4 schwarze 25: #include <time.h>
1.6 schwarze 26: #include <unistd.h>
1.1 schwarze 27:
1.10 schwarze 28: #include "mandoc.h"
1.21 ! schwarze 29: #include "mandoc_aux.h"
1.1 schwarze 30: #include "out.h"
31: #include "main.h"
32: #include "term.h"
33:
1.17 schwarze 34: /* These work the buffer used by the header and footer. */
35: #define PS_BUFSLOP 128
36:
1.6 schwarze 37: /* Convert PostScript point "x" to an AFM unit. */
38: #define PNT2AFM(p, x) /* LINTED */ \
1.17 schwarze 39: (size_t)((double)(x) * (1000.0 / (double)(p)->ps->scale))
1.6 schwarze 40:
41: /* Convert an AFM unit "x" to a PostScript points */
42: #define AFM2PNT(p, x) /* LINTED */ \
1.17 schwarze 43: ((double)(x) / (1000.0 / (double)(p)->ps->scale))
1.6 schwarze 44:
1.4 schwarze 45: struct glyph {
1.7 schwarze 46: unsigned short wx; /* WX in AFM */
1.4 schwarze 47: };
48:
49: struct font {
50: const char *name; /* FontName in AFM */
51: #define MAXCHAR 95 /* total characters we can handle */
52: struct glyph gly[MAXCHAR]; /* glyph metrics */
53: };
1.1 schwarze 54:
1.17 schwarze 55: struct termp_ps {
56: int flags;
57: #define PS_INLINE (1 << 0) /* we're in a word */
58: #define PS_MARGINS (1 << 1) /* we're in the margins */
59: #define PS_NEWPAGE (1 << 2) /* new page, no words yet */
60: size_t pscol; /* visible column (AFM units) */
61: size_t psrow; /* visible row (AFM units) */
62: char *psmarg; /* margin buf */
63: size_t psmargsz; /* margin buf size */
64: size_t psmargcur; /* cur index in margin buf */
65: char last; /* character buffer */
66: enum termfont lastf; /* last set font */
67: size_t scale; /* font scaling factor */
68: size_t pages; /* number of pages shown */
69: size_t lineheight; /* line height (AFM units) */
70: size_t top; /* body top (AFM units) */
71: size_t bottom; /* body bottom (AFM units) */
72: size_t height; /* page height (AFM units */
73: size_t width; /* page width (AFM units) */
74: size_t left; /* body left (AFM units) */
75: size_t header; /* header pos (AFM units) */
76: size_t footer; /* footer pos (AFM units) */
77: size_t pdfbytes; /* current output byte */
78: size_t pdflastpg; /* byte of last page mark */
79: size_t pdfbody; /* start of body object */
80: size_t *pdfobjs; /* table of object offsets */
81: size_t pdfobjsz; /* size of pdfobjs */
82: };
83:
84: static double ps_hspan(const struct termp *,
85: const struct roffsu *);
86: static size_t ps_width(const struct termp *, int);
87: static void ps_advance(struct termp *, size_t);
88: static void ps_begin(struct termp *);
89: static void ps_closepage(struct termp *);
90: static void ps_end(struct termp *);
91: static void ps_endline(struct termp *);
92: static void ps_fclose(struct termp *);
93: static void ps_growbuf(struct termp *, size_t);
94: static void ps_letter(struct termp *, int);
95: static void ps_pclose(struct termp *);
96: static void ps_pletter(struct termp *, int);
97: static void ps_printf(struct termp *, const char *, ...);
98: static void ps_putchar(struct termp *, char);
99: static void ps_setfont(struct termp *, enum termfont);
100: static struct termp *pspdf_alloc(char *);
101: static void pdf_obj(struct termp *, size_t);
102:
1.4 schwarze 103: /*
104: * We define, for the time being, three fonts: bold, oblique/italic, and
105: * normal (roman). The following table hard-codes the font metrics for
106: * ASCII, i.e., 32--127.
107: */
108:
109: static const struct font fonts[TERMFONT__MAX] = {
1.6 schwarze 110: { "Times-Roman", {
111: { 250 },
112: { 333 },
113: { 408 },
114: { 500 },
115: { 500 },
116: { 833 },
117: { 778 },
118: { 333 },
119: { 333 },
120: { 333 },
121: { 500 },
122: { 564 },
123: { 250 },
124: { 333 },
125: { 250 },
126: { 278 },
127: { 500 },
128: { 500 },
129: { 500 },
130: { 500 },
131: { 500 },
132: { 500 },
133: { 500 },
134: { 500 },
135: { 500 },
136: { 500 },
137: { 278 },
138: { 278 },
139: { 564 },
140: { 564 },
141: { 564 },
142: { 444 },
143: { 921 },
144: { 722 },
145: { 667 },
146: { 667 },
147: { 722 },
148: { 611 },
149: { 556 },
150: { 722 },
151: { 722 },
152: { 333 },
153: { 389 },
154: { 722 },
155: { 611 },
156: { 889 },
157: { 722 },
158: { 722 },
159: { 556 },
160: { 722 },
161: { 667 },
162: { 556 },
163: { 611 },
164: { 722 },
165: { 722 },
166: { 944 },
167: { 722 },
168: { 722 },
169: { 611 },
170: { 333 },
171: { 278 },
172: { 333 },
173: { 469 },
174: { 500 },
175: { 333 },
176: { 444 },
177: { 500 },
178: { 444 },
179: { 500},
180: { 444},
181: { 333},
182: { 500},
183: { 500},
184: { 278},
185: { 278},
186: { 500},
187: { 278},
188: { 778},
189: { 500},
190: { 500},
191: { 500},
192: { 500},
193: { 333},
194: { 389},
195: { 278},
196: { 500},
197: { 500},
198: { 722},
199: { 500},
200: { 500},
201: { 444},
202: { 480},
203: { 200},
204: { 480},
205: { 541},
1.4 schwarze 206: } },
1.6 schwarze 207: { "Times-Bold", {
208: { 250 },
209: { 333 },
210: { 555 },
211: { 500 },
212: { 500 },
213: { 1000 },
214: { 833 },
215: { 333 },
216: { 333 },
217: { 333 },
218: { 500 },
219: { 570 },
220: { 250 },
221: { 333 },
222: { 250 },
223: { 278 },
224: { 500 },
225: { 500 },
226: { 500 },
227: { 500 },
228: { 500 },
229: { 500 },
230: { 500 },
231: { 500 },
232: { 500 },
233: { 500 },
234: { 333 },
235: { 333 },
236: { 570 },
237: { 570 },
238: { 570 },
239: { 500 },
240: { 930 },
241: { 722 },
242: { 667 },
243: { 722 },
244: { 722 },
245: { 667 },
246: { 611 },
247: { 778 },
248: { 778 },
249: { 389 },
250: { 500 },
251: { 778 },
252: { 667 },
253: { 944 },
254: { 722 },
255: { 778 },
256: { 611 },
257: { 778 },
258: { 722 },
259: { 556 },
260: { 667 },
261: { 722 },
262: { 722 },
263: { 1000 },
264: { 722 },
265: { 722 },
266: { 667 },
267: { 333 },
268: { 278 },
269: { 333 },
270: { 581 },
271: { 500 },
272: { 333 },
273: { 500 },
274: { 556 },
275: { 444 },
276: { 556 },
277: { 444 },
278: { 333 },
279: { 500 },
280: { 556 },
281: { 278 },
282: { 333 },
283: { 556 },
284: { 278 },
285: { 833 },
286: { 556 },
287: { 500 },
288: { 556 },
289: { 556 },
290: { 444 },
291: { 389 },
292: { 333 },
293: { 556 },
294: { 500 },
295: { 722 },
296: { 500 },
297: { 500 },
298: { 444 },
299: { 394 },
300: { 220 },
301: { 394 },
302: { 520 },
1.4 schwarze 303: } },
1.6 schwarze 304: { "Times-Italic", {
305: { 250 },
306: { 333 },
307: { 420 },
308: { 500 },
309: { 500 },
310: { 833 },
311: { 778 },
312: { 333 },
313: { 333 },
314: { 333 },
315: { 500 },
316: { 675 },
317: { 250 },
318: { 333 },
319: { 250 },
320: { 278 },
321: { 500 },
322: { 500 },
323: { 500 },
324: { 500 },
325: { 500 },
326: { 500 },
327: { 500 },
328: { 500 },
329: { 500 },
330: { 500 },
331: { 333 },
332: { 333 },
333: { 675 },
334: { 675 },
335: { 675 },
336: { 500 },
337: { 920 },
338: { 611 },
339: { 611 },
340: { 667 },
341: { 722 },
342: { 611 },
343: { 611 },
344: { 722 },
345: { 722 },
346: { 333 },
347: { 444 },
348: { 667 },
349: { 556 },
350: { 833 },
351: { 667 },
352: { 722 },
353: { 611 },
354: { 722 },
355: { 611 },
356: { 500 },
357: { 556 },
358: { 722 },
359: { 611 },
360: { 833 },
361: { 611 },
362: { 556 },
363: { 556 },
364: { 389 },
365: { 278 },
366: { 389 },
367: { 422 },
368: { 500 },
369: { 333 },
370: { 500 },
371: { 500 },
372: { 444 },
373: { 500 },
374: { 444 },
375: { 278 },
376: { 500 },
377: { 500 },
378: { 278 },
379: { 278 },
380: { 444 },
381: { 278 },
382: { 722 },
383: { 500 },
384: { 500 },
385: { 500 },
386: { 500 },
387: { 389 },
388: { 389 },
389: { 278 },
390: { 500 },
391: { 444 },
392: { 667 },
393: { 444 },
394: { 444 },
395: { 389 },
396: { 400 },
397: { 275 },
398: { 400 },
399: { 541 },
1.4 schwarze 400: } },
401: };
402:
1.7 schwarze 403: void *
404: pdf_alloc(char *outopts)
405: {
406: struct termp *p;
407:
1.8 schwarze 408: if (NULL != (p = pspdf_alloc(outopts)))
409: p->type = TERMTYPE_PDF;
1.7 schwarze 410:
411: return(p);
412: }
1.1 schwarze 413:
414: void *
1.5 schwarze 415: ps_alloc(char *outopts)
1.1 schwarze 416: {
417: struct termp *p;
1.7 schwarze 418:
1.8 schwarze 419: if (NULL != (p = pspdf_alloc(outopts)))
420: p->type = TERMTYPE_PS;
1.7 schwarze 421:
422: return(p);
423: }
424:
425: static struct termp *
426: pspdf_alloc(char *outopts)
427: {
428: struct termp *p;
1.18 schwarze 429: unsigned int pagex, pagey;
430: size_t marginx, marginy, lineheight;
1.5 schwarze 431: const char *toks[2];
1.6 schwarze 432: const char *pp;
1.5 schwarze 433: char *v;
1.1 schwarze 434:
1.17 schwarze 435: p = mandoc_calloc(1, sizeof(struct termp));
436: p->enc = TERMENC_ASCII;
437: p->ps = mandoc_calloc(1, sizeof(struct termp_ps));
1.1 schwarze 438:
1.6 schwarze 439: p->advance = ps_advance;
1.1 schwarze 440: p->begin = ps_begin;
441: p->end = ps_end;
442: p->endline = ps_endline;
1.6 schwarze 443: p->hspan = ps_hspan;
444: p->letter = ps_letter;
1.3 schwarze 445: p->width = ps_width;
1.6 schwarze 446:
1.5 schwarze 447: toks[0] = "paper";
448: toks[1] = NULL;
449:
1.6 schwarze 450: pp = NULL;
451:
1.5 schwarze 452: while (outopts && *outopts)
453: switch (getsubopt(&outopts, UNCONST(toks), &v)) {
454: case (0):
1.6 schwarze 455: pp = v;
1.5 schwarze 456: break;
457: default:
458: break;
459: }
1.4 schwarze 460:
1.6 schwarze 461: /* Default to US letter (millimetres). */
462:
463: pagex = 216;
464: pagey = 279;
465:
466: /*
467: * The ISO-269 paper sizes can be calculated automatically, but
468: * it would require bringing in -lm for pow() and I'd rather not
469: * do that. So just do it the easy way for now. Since this
470: * only happens once, I'm not terribly concerned.
471: */
472:
473: if (pp && strcasecmp(pp, "letter")) {
474: if (0 == strcasecmp(pp, "a3")) {
475: pagex = 297;
476: pagey = 420;
477: } else if (0 == strcasecmp(pp, "a4")) {
478: pagex = 210;
479: pagey = 297;
480: } else if (0 == strcasecmp(pp, "a5")) {
481: pagex = 148;
482: pagey = 210;
483: } else if (0 == strcasecmp(pp, "legal")) {
484: pagex = 216;
485: pagey = 356;
1.18 schwarze 486: } else if (2 != sscanf(pp, "%ux%u", &pagex, &pagey))
1.6 schwarze 487: fprintf(stderr, "%s: Unknown paper\n", pp);
1.19 schwarze 488: }
1.6 schwarze 489:
490: /*
491: * This MUST be defined before any PNT2AFM or AFM2PNT
492: * calculations occur.
493: */
494:
1.17 schwarze 495: p->ps->scale = 11;
1.6 schwarze 496:
497: /* Remember millimetres -> AFM units. */
498:
499: pagex = PNT2AFM(p, ((double)pagex * 2.834));
500: pagey = PNT2AFM(p, ((double)pagey * 2.834));
501:
502: /* Margins are 1/9 the page x and y. */
503:
504: marginx = /* LINTED */
505: (size_t)((double)pagex / 9.0);
506: marginy = /* LINTED */
507: (size_t)((double)pagey / 9.0);
508:
509: /* Line-height is 1.4em. */
510:
1.17 schwarze 511: lineheight = PNT2AFM(p, ((double)p->ps->scale * 1.4));
1.4 schwarze 512:
1.18 schwarze 513: p->ps->width = (size_t)pagex;
514: p->ps->height = (size_t)pagey;
1.17 schwarze 515: p->ps->header = pagey - (marginy / 2) - (lineheight / 2);
516: p->ps->top = pagey - marginy;
517: p->ps->footer = (marginy / 2) - (lineheight / 2);
518: p->ps->bottom = marginy;
519: p->ps->left = marginx;
520: p->ps->lineheight = lineheight;
1.4 schwarze 521:
1.6 schwarze 522: p->defrmargin = pagex - (marginx * 2);
1.1 schwarze 523: return(p);
524: }
525:
526:
527: void
1.7 schwarze 528: pspdf_free(void *arg)
1.1 schwarze 529: {
530: struct termp *p;
531:
532: p = (struct termp *)arg;
533:
1.17 schwarze 534: if (p->ps->psmarg)
535: free(p->ps->psmarg);
536: if (p->ps->pdfobjs)
537: free(p->ps->pdfobjs);
1.1 schwarze 538:
1.17 schwarze 539: free(p->ps);
1.1 schwarze 540: term_free(p);
541: }
542:
543:
544: static void
545: ps_printf(struct termp *p, const char *fmt, ...)
546: {
547: va_list ap;
1.7 schwarze 548: int pos, len;
1.1 schwarze 549:
550: va_start(ap, fmt);
551:
552: /*
553: * If we're running in regular mode, then pipe directly into
554: * vprintf(). If we're processing margins, then push the data
555: * into our growable margin buffer.
556: */
557:
1.17 schwarze 558: if ( ! (PS_MARGINS & p->ps->flags)) {
1.7 schwarze 559: len = vprintf(fmt, ap);
1.1 schwarze 560: va_end(ap);
1.17 schwarze 561: p->ps->pdfbytes += /* LINTED */
1.7 schwarze 562: len < 0 ? 0 : (size_t)len;
1.1 schwarze 563: return;
564: }
565:
566: /*
567: * XXX: I assume that the in-margin print won't exceed
568: * PS_BUFSLOP (128 bytes), which is reasonable but still an
569: * assumption that will cause pukeage if it's not the case.
570: */
571:
1.9 schwarze 572: ps_growbuf(p, PS_BUFSLOP);
1.1 schwarze 573:
1.17 schwarze 574: pos = (int)p->ps->psmargcur;
1.19 schwarze 575: vsnprintf(&p->ps->psmarg[pos], PS_BUFSLOP, fmt, ap);
1.1 schwarze 576:
577: va_end(ap);
1.7 schwarze 578:
1.17 schwarze 579: p->ps->psmargcur = strlen(p->ps->psmarg);
1.1 schwarze 580: }
581:
582:
583: static void
584: ps_putchar(struct termp *p, char c)
585: {
586: int pos;
587:
588: /* See ps_printf(). */
589:
1.17 schwarze 590: if ( ! (PS_MARGINS & p->ps->flags)) {
1.13 schwarze 591: /* LINTED */
1.1 schwarze 592: putchar(c);
1.17 schwarze 593: p->ps->pdfbytes++;
1.1 schwarze 594: return;
595: }
596:
1.9 schwarze 597: ps_growbuf(p, 2);
1.1 schwarze 598:
1.17 schwarze 599: pos = (int)p->ps->psmargcur++;
600: p->ps->psmarg[pos++] = c;
601: p->ps->psmarg[pos] = '\0';
1.1 schwarze 602: }
603:
604:
1.7 schwarze 605: static void
1.8 schwarze 606: pdf_obj(struct termp *p, size_t obj)
607: {
608:
609: assert(obj > 0);
610:
1.17 schwarze 611: if ((obj - 1) >= p->ps->pdfobjsz) {
612: p->ps->pdfobjsz = obj + 128;
613: p->ps->pdfobjs = realloc
614: (p->ps->pdfobjs,
615: p->ps->pdfobjsz * sizeof(size_t));
616: if (NULL == p->ps->pdfobjs) {
1.8 schwarze 617: perror(NULL);
1.13 schwarze 618: exit((int)MANDOCLEVEL_SYSERR);
1.8 schwarze 619: }
620: }
621:
1.17 schwarze 622: p->ps->pdfobjs[(int)obj - 1] = p->ps->pdfbytes;
1.8 schwarze 623: ps_printf(p, "%zu 0 obj\n", obj);
624: }
625:
626:
627: static void
1.7 schwarze 628: ps_closepage(struct termp *p)
629: {
630: int i;
1.8 schwarze 631: size_t len, base;
632:
633: /*
634: * Close out a page that we've already flushed to output. In
635: * PostScript, we simply note that the page must be showed. In
636: * PDF, we must now create the Length, Resource, and Page node
637: * for the page contents.
638: */
1.7 schwarze 639:
1.17 schwarze 640: assert(p->ps->psmarg && p->ps->psmarg[0]);
641: ps_printf(p, "%s", p->ps->psmarg);
1.7 schwarze 642:
1.8 schwarze 643: if (TERMTYPE_PS != p->type) {
1.7 schwarze 644: ps_printf(p, "ET\n");
1.8 schwarze 645:
1.17 schwarze 646: len = p->ps->pdfbytes - p->ps->pdflastpg;
647: base = p->ps->pages * 4 + p->ps->pdfbody;
1.8 schwarze 648:
649: ps_printf(p, "endstream\nendobj\n");
650:
651: /* Length of content. */
652: pdf_obj(p, base + 1);
653: ps_printf(p, "%zu\nendobj\n", len);
654:
655: /* Resource for content. */
656: pdf_obj(p, base + 2);
657: ps_printf(p, "<<\n/ProcSet [/PDF /Text]\n");
1.7 schwarze 658: ps_printf(p, "/Font <<\n");
659: for (i = 0; i < (int)TERMFONT__MAX; i++)
660: ps_printf(p, "/F%d %d 0 R\n", i, 3 + i);
1.8 schwarze 661: ps_printf(p, ">>\n>>\n");
662:
663: /* Page node. */
664: pdf_obj(p, base + 3);
1.7 schwarze 665: ps_printf(p, "<<\n");
666: ps_printf(p, "/Type /Page\n");
667: ps_printf(p, "/Parent 2 0 R\n");
1.8 schwarze 668: ps_printf(p, "/Resources %zu 0 R\n", base + 2);
669: ps_printf(p, "/Contents %zu 0 R\n", base);
670: ps_printf(p, ">>\nendobj\n");
671: } else
672: ps_printf(p, "showpage\n");
1.7 schwarze 673:
1.17 schwarze 674: p->ps->pages++;
675: p->ps->psrow = p->ps->top;
676: assert( ! (PS_NEWPAGE & p->ps->flags));
677: p->ps->flags |= PS_NEWPAGE;
1.7 schwarze 678: }
679:
680:
1.1 schwarze 681: /* ARGSUSED */
682: static void
683: ps_end(struct termp *p)
684: {
1.8 schwarze 685: size_t i, xref, base;
1.1 schwarze 686:
687: /*
688: * At the end of the file, do one last showpage. This is the
689: * same behaviour as groff(1) and works for multiple pages as
690: * well as just one.
691: */
692:
1.17 schwarze 693: if ( ! (PS_NEWPAGE & p->ps->flags)) {
694: assert(0 == p->ps->flags);
695: assert('\0' == p->ps->last);
1.7 schwarze 696: ps_closepage(p);
1.6 schwarze 697: }
1.4 schwarze 698:
1.7 schwarze 699: if (TERMTYPE_PS == p->type) {
700: ps_printf(p, "%%%%Trailer\n");
1.17 schwarze 701: ps_printf(p, "%%%%Pages: %zu\n", p->ps->pages);
1.7 schwarze 702: ps_printf(p, "%%%%EOF\n");
703: return;
704: }
705:
1.8 schwarze 706: pdf_obj(p, 2);
707: ps_printf(p, "<<\n/Type /Pages\n");
1.7 schwarze 708: ps_printf(p, "/MediaBox [0 0 %zu %zu]\n",
1.17 schwarze 709: (size_t)AFM2PNT(p, p->ps->width),
710: (size_t)AFM2PNT(p, p->ps->height));
1.7 schwarze 711:
1.17 schwarze 712: ps_printf(p, "/Count %zu\n", p->ps->pages);
1.7 schwarze 713: ps_printf(p, "/Kids [");
714:
1.17 schwarze 715: for (i = 0; i < p->ps->pages; i++)
1.8 schwarze 716: ps_printf(p, " %zu 0 R", i * 4 +
1.17 schwarze 717: p->ps->pdfbody + 3);
1.8 schwarze 718:
1.17 schwarze 719: base = (p->ps->pages - 1) * 4 +
720: p->ps->pdfbody + 4;
1.8 schwarze 721:
722: ps_printf(p, "]\n>>\nendobj\n");
723: pdf_obj(p, base);
1.7 schwarze 724: ps_printf(p, "<<\n");
725: ps_printf(p, "/Type /Catalog\n");
726: ps_printf(p, "/Pages 2 0 R\n");
727: ps_printf(p, ">>\n");
1.17 schwarze 728: xref = p->ps->pdfbytes;
1.7 schwarze 729: ps_printf(p, "xref\n");
1.8 schwarze 730: ps_printf(p, "0 %zu\n", base + 1);
731: ps_printf(p, "0000000000 65535 f \n");
732:
733: for (i = 0; i < base; i++)
734: ps_printf(p, "%.10zu 00000 n \n",
1.17 schwarze 735: p->ps->pdfobjs[(int)i]);
1.8 schwarze 736:
1.7 schwarze 737: ps_printf(p, "trailer\n");
738: ps_printf(p, "<<\n");
1.8 schwarze 739: ps_printf(p, "/Size %zu\n", base + 1);
740: ps_printf(p, "/Root %zu 0 R\n", base);
1.7 schwarze 741: ps_printf(p, "/Info 1 0 R\n");
742: ps_printf(p, ">>\n");
743: ps_printf(p, "startxref\n");
744: ps_printf(p, "%zu\n", xref);
745: ps_printf(p, "%%%%EOF\n");
1.1 schwarze 746: }
747:
748:
749: static void
750: ps_begin(struct termp *p)
751: {
1.4 schwarze 752: time_t t;
753: int i;
1.1 schwarze 754:
1.2 schwarze 755: /*
756: * Print margins into margin buffer. Nothing gets output to the
757: * screen yet, so we don't need to initialise the primary state.
1.1 schwarze 758: */
759:
1.17 schwarze 760: if (p->ps->psmarg) {
761: assert(p->ps->psmargsz);
762: p->ps->psmarg[0] = '\0';
1.1 schwarze 763: }
764:
1.17 schwarze 765: /*p->ps->pdfbytes = 0;*/
766: p->ps->psmargcur = 0;
767: p->ps->flags = PS_MARGINS;
768: p->ps->pscol = p->ps->left;
769: p->ps->psrow = p->ps->header;
1.1 schwarze 770:
1.2 schwarze 771: ps_setfont(p, TERMFONT_NONE);
1.1 schwarze 772:
773: (*p->headf)(p, p->argf);
774: (*p->endline)(p);
775:
1.17 schwarze 776: p->ps->pscol = p->ps->left;
777: p->ps->psrow = p->ps->footer;
1.1 schwarze 778:
779: (*p->footf)(p, p->argf);
780: (*p->endline)(p);
781:
1.17 schwarze 782: p->ps->flags &= ~PS_MARGINS;
1.2 schwarze 783:
1.17 schwarze 784: assert(0 == p->ps->flags);
785: assert(p->ps->psmarg);
786: assert('\0' != p->ps->psmarg[0]);
1.1 schwarze 787:
1.2 schwarze 788: /*
789: * Print header and initialise page state. Following this,
790: * stuff gets printed to the screen, so make sure we're sane.
791: */
792:
1.4 schwarze 793: t = time(NULL);
794:
1.7 schwarze 795: if (TERMTYPE_PS == p->type) {
796: ps_printf(p, "%%!PS-Adobe-3.0\n");
797: ps_printf(p, "%%%%CreationDate: %s", ctime(&t));
798: ps_printf(p, "%%%%DocumentData: Clean7Bit\n");
799: ps_printf(p, "%%%%Orientation: Portrait\n");
800: ps_printf(p, "%%%%Pages: (atend)\n");
801: ps_printf(p, "%%%%PageOrder: Ascend\n");
802: ps_printf(p, "%%%%DocumentMedia: "
803: "Default %zu %zu 0 () ()\n",
1.17 schwarze 804: (size_t)AFM2PNT(p, p->ps->width),
805: (size_t)AFM2PNT(p, p->ps->height));
1.7 schwarze 806: ps_printf(p, "%%%%DocumentNeededResources: font");
1.4 schwarze 807:
1.7 schwarze 808: for (i = 0; i < (int)TERMFONT__MAX; i++)
809: ps_printf(p, " %s", fonts[i].name);
810:
811: ps_printf(p, "\n%%%%EndComments\n");
812: } else {
813: ps_printf(p, "%%PDF-1.1\n");
1.8 schwarze 814: pdf_obj(p, 1);
1.7 schwarze 815: ps_printf(p, "<<\n");
816: ps_printf(p, ">>\n");
817: ps_printf(p, "endobj\n");
818:
819: for (i = 0; i < (int)TERMFONT__MAX; i++) {
1.8 schwarze 820: pdf_obj(p, (size_t)i + 3);
1.7 schwarze 821: ps_printf(p, "<<\n");
822: ps_printf(p, "/Type /Font\n");
823: ps_printf(p, "/Subtype /Type1\n");
1.20 schwarze 824: ps_printf(p, "/Name /F%d\n", i);
1.7 schwarze 825: ps_printf(p, "/BaseFont /%s\n", fonts[i].name);
826: ps_printf(p, ">>\n");
827: }
828: }
829:
1.17 schwarze 830: p->ps->pdfbody = (size_t)TERMFONT__MAX + 3;
831: p->ps->pscol = p->ps->left;
832: p->ps->psrow = p->ps->top;
833: p->ps->flags |= PS_NEWPAGE;
1.6 schwarze 834: ps_setfont(p, TERMFONT_NONE);
1.1 schwarze 835: }
836:
837:
838: static void
1.4 schwarze 839: ps_pletter(struct termp *p, int c)
1.1 schwarze 840: {
1.4 schwarze 841: int f;
1.6 schwarze 842:
843: /*
844: * If we haven't opened a page context, then output that we're
845: * in a new page and make sure the font is correctly set.
846: */
847:
1.17 schwarze 848: if (PS_NEWPAGE & p->ps->flags) {
1.7 schwarze 849: if (TERMTYPE_PS == p->type) {
850: ps_printf(p, "%%%%Page: %zu %zu\n",
1.17 schwarze 851: p->ps->pages + 1,
852: p->ps->pages + 1);
1.7 schwarze 853: ps_printf(p, "/%s %zu selectfont\n",
1.17 schwarze 854: fonts[(int)p->ps->lastf].name,
855: p->ps->scale);
1.7 schwarze 856: } else {
1.17 schwarze 857: pdf_obj(p, p->ps->pdfbody +
858: p->ps->pages * 4);
1.7 schwarze 859: ps_printf(p, "<<\n");
860: ps_printf(p, "/Length %zu 0 R\n",
1.17 schwarze 861: p->ps->pdfbody + 1 +
862: p->ps->pages * 4);
1.7 schwarze 863: ps_printf(p, ">>\nstream\n");
864: }
1.17 schwarze 865: p->ps->pdflastpg = p->ps->pdfbytes;
866: p->ps->flags &= ~PS_NEWPAGE;
1.6 schwarze 867: }
1.1 schwarze 868:
1.2 schwarze 869: /*
870: * If we're not in a PostScript "word" context, then open one
871: * now at the current cursor.
872: */
873:
1.17 schwarze 874: if ( ! (PS_INLINE & p->ps->flags)) {
1.7 schwarze 875: if (TERMTYPE_PS != p->type) {
876: ps_printf(p, "BT\n/F%d %zu Tf\n",
1.17 schwarze 877: (int)p->ps->lastf,
878: p->ps->scale);
1.7 schwarze 879: ps_printf(p, "%.3f %.3f Td\n(",
1.17 schwarze 880: AFM2PNT(p, p->ps->pscol),
881: AFM2PNT(p, p->ps->psrow));
1.7 schwarze 882: } else
883: ps_printf(p, "%.3f %.3f moveto\n(",
1.17 schwarze 884: AFM2PNT(p, p->ps->pscol),
885: AFM2PNT(p, p->ps->psrow));
886: p->ps->flags |= PS_INLINE;
1.1 schwarze 887: }
888:
1.17 schwarze 889: assert( ! (PS_NEWPAGE & p->ps->flags));
1.6 schwarze 890:
1.1 schwarze 891: /*
892: * We need to escape these characters as per the PostScript
893: * specification. We would also escape non-graphable characters
894: * (like tabs), but none of them would get to this point and
895: * it's superfluous to abort() on them.
896: */
897:
898: switch (c) {
899: case ('('):
900: /* FALLTHROUGH */
901: case (')'):
902: /* FALLTHROUGH */
903: case ('\\'):
904: ps_putchar(p, '\\');
905: break;
906: default:
907: break;
908: }
909:
910: /* Write the character and adjust where we are on the page. */
1.2 schwarze 911:
1.17 schwarze 912: f = (int)p->ps->lastf;
1.4 schwarze 913:
1.12 jsg 914: if (c <= 32 || (c - 32 >= MAXCHAR)) {
1.4 schwarze 915: ps_putchar(p, ' ');
1.17 schwarze 916: p->ps->pscol += (size_t)fonts[f].gly[0].wx;
1.4 schwarze 917: return;
918: }
919:
1.6 schwarze 920: ps_putchar(p, (char)c);
1.4 schwarze 921: c -= 32;
1.17 schwarze 922: p->ps->pscol += (size_t)fonts[f].gly[c].wx;
1.1 schwarze 923: }
924:
925:
926: static void
1.2 schwarze 927: ps_pclose(struct termp *p)
928: {
929:
930: /*
931: * Spit out that we're exiting a word context (this is a
932: * "partial close" because we don't check the last-char buffer
933: * or anything).
934: */
935:
1.17 schwarze 936: if ( ! (PS_INLINE & p->ps->flags))
1.2 schwarze 937: return;
938:
1.7 schwarze 939: if (TERMTYPE_PS != p->type) {
940: ps_printf(p, ") Tj\nET\n");
941: } else
942: ps_printf(p, ") show\n");
943:
1.17 schwarze 944: p->ps->flags &= ~PS_INLINE;
1.2 schwarze 945: }
946:
947:
948: static void
949: ps_fclose(struct termp *p)
950: {
951:
952: /*
953: * Strong closure: if we have a last-char, spit it out after
954: * checking that we're in the right font mode. This will of
955: * course open a new scope, if applicable.
956: *
957: * Following this, close out any scope that's open.
958: */
959:
1.17 schwarze 960: if ('\0' != p->ps->last) {
961: if (p->ps->lastf != TERMFONT_NONE) {
1.2 schwarze 962: ps_pclose(p);
963: ps_setfont(p, TERMFONT_NONE);
964: }
1.17 schwarze 965: ps_pletter(p, p->ps->last);
966: p->ps->last = '\0';
1.2 schwarze 967: }
968:
1.17 schwarze 969: if ( ! (PS_INLINE & p->ps->flags))
1.2 schwarze 970: return;
971:
972: ps_pclose(p);
973: }
974:
975:
976: static void
1.17 schwarze 977: ps_letter(struct termp *p, int arg)
1.2 schwarze 978: {
1.17 schwarze 979: char cc, c;
980:
981: /* LINTED */
982: c = arg >= 128 || arg <= 0 ? '?' : arg;
1.2 schwarze 983:
984: /*
985: * State machine dictates whether to buffer the last character
986: * or not. Basically, encoded words are detected by checking if
987: * we're an "8" and switching on the buffer. Then we put "8" in
988: * our buffer, and on the next charater, flush both character
989: * and buffer. Thus, "regular" words are detected by having a
990: * regular character and a regular buffer character.
991: */
992:
1.17 schwarze 993: if ('\0' == p->ps->last) {
1.2 schwarze 994: assert(8 != c);
1.17 schwarze 995: p->ps->last = c;
1.2 schwarze 996: return;
1.17 schwarze 997: } else if (8 == p->ps->last) {
1.2 schwarze 998: assert(8 != c);
1.17 schwarze 999: p->ps->last = '\0';
1.2 schwarze 1000: } else if (8 == c) {
1.17 schwarze 1001: assert(8 != p->ps->last);
1002: if ('_' == p->ps->last) {
1003: if (p->ps->lastf != TERMFONT_UNDER) {
1.2 schwarze 1004: ps_pclose(p);
1005: ps_setfont(p, TERMFONT_UNDER);
1006: }
1.17 schwarze 1007: } else if (p->ps->lastf != TERMFONT_BOLD) {
1.2 schwarze 1008: ps_pclose(p);
1009: ps_setfont(p, TERMFONT_BOLD);
1010: }
1.17 schwarze 1011: p->ps->last = c;
1.2 schwarze 1012: return;
1013: } else {
1.17 schwarze 1014: if (p->ps->lastf != TERMFONT_NONE) {
1.2 schwarze 1015: ps_pclose(p);
1016: ps_setfont(p, TERMFONT_NONE);
1017: }
1.17 schwarze 1018: cc = p->ps->last;
1019: p->ps->last = c;
1.2 schwarze 1020: c = cc;
1021: }
1022:
1023: ps_pletter(p, c);
1024: }
1025:
1026:
1027: static void
1.1 schwarze 1028: ps_advance(struct termp *p, size_t len)
1029: {
1030:
1.2 schwarze 1031: /*
1032: * Advance some spaces. This can probably be made smarter,
1033: * i.e., to have multiple space-separated words in the same
1034: * scope, but this is easier: just close out the current scope
1035: * and readjust our column settings.
1036: */
1.1 schwarze 1037:
1.2 schwarze 1038: ps_fclose(p);
1.17 schwarze 1039: p->ps->pscol += len;
1.1 schwarze 1040: }
1041:
1042:
1043: static void
1044: ps_endline(struct termp *p)
1045: {
1046:
1.2 schwarze 1047: /* Close out any scopes we have open: we're at eoln. */
1048:
1049: ps_fclose(p);
1050:
1051: /*
1052: * If we're in the margin, don't try to recalculate our current
1053: * row. XXX: if the column tries to be fancy with multiple
1054: * lines, we'll do nasty stuff.
1055: */
1.1 schwarze 1056:
1.17 schwarze 1057: if (PS_MARGINS & p->ps->flags)
1.6 schwarze 1058: return;
1059:
1060: /* Left-justify. */
1061:
1.17 schwarze 1062: p->ps->pscol = p->ps->left;
1.6 schwarze 1063:
1064: /* If we haven't printed anything, return. */
1065:
1.17 schwarze 1066: if (PS_NEWPAGE & p->ps->flags)
1.1 schwarze 1067: return;
1068:
1.2 schwarze 1069: /*
1070: * Put us down a line. If we're at the page bottom, spit out a
1071: * showpage and restart our row.
1072: */
1073:
1.17 schwarze 1074: if (p->ps->psrow >= p->ps->lineheight +
1075: p->ps->bottom) {
1076: p->ps->psrow -= p->ps->lineheight;
1.1 schwarze 1077: return;
1078: }
1079:
1.7 schwarze 1080: ps_closepage(p);
1.1 schwarze 1081: }
1.2 schwarze 1082:
1083:
1084: static void
1085: ps_setfont(struct termp *p, enum termfont f)
1086: {
1087:
1.4 schwarze 1088: assert(f < TERMFONT__MAX);
1.17 schwarze 1089: p->ps->lastf = f;
1.6 schwarze 1090:
1091: /*
1092: * If we're still at the top of the page, let the font-setting
1093: * be delayed until we actually have stuff to print.
1094: */
1095:
1.17 schwarze 1096: if (PS_NEWPAGE & p->ps->flags)
1.6 schwarze 1097: return;
1098:
1.7 schwarze 1099: if (TERMTYPE_PS == p->type)
1100: ps_printf(p, "/%s %zu selectfont\n",
1101: fonts[(int)f].name,
1.17 schwarze 1102: p->ps->scale);
1.7 schwarze 1103: else
1104: ps_printf(p, "/F%d %zu Tf\n",
1105: (int)f,
1.17 schwarze 1106: p->ps->scale);
1.2 schwarze 1107: }
1108:
1.3 schwarze 1109:
1.4 schwarze 1110: /* ARGSUSED */
1.3 schwarze 1111: static size_t
1.17 schwarze 1112: ps_width(const struct termp *p, int c)
1.3 schwarze 1113: {
1114:
1.4 schwarze 1115: if (c <= 32 || c - 32 >= MAXCHAR)
1.7 schwarze 1116: return((size_t)fonts[(int)TERMFONT_NONE].gly[0].wx);
1.4 schwarze 1117:
1118: c -= 32;
1.17 schwarze 1119: return((size_t)fonts[(int)TERMFONT_NONE].gly[c].wx);
1.6 schwarze 1120: }
1121:
1122:
1123: static double
1124: ps_hspan(const struct termp *p, const struct roffsu *su)
1125: {
1126: double r;
1127:
1128: /*
1129: * All of these measurements are derived by converting from the
1130: * native measurement to AFM units.
1131: */
1132:
1133: switch (su->unit) {
1134: case (SCALE_CM):
1135: r = PNT2AFM(p, su->scale * 28.34);
1136: break;
1137: case (SCALE_IN):
1138: r = PNT2AFM(p, su->scale * 72);
1139: break;
1140: case (SCALE_PC):
1141: r = PNT2AFM(p, su->scale * 12);
1142: break;
1143: case (SCALE_PT):
1144: r = PNT2AFM(p, su->scale * 100);
1145: break;
1146: case (SCALE_EM):
1.7 schwarze 1147: r = su->scale *
1.6 schwarze 1148: fonts[(int)TERMFONT_NONE].gly[109 - 32].wx;
1149: break;
1150: case (SCALE_MM):
1151: r = PNT2AFM(p, su->scale * 2.834);
1152: break;
1153: case (SCALE_EN):
1.7 schwarze 1154: r = su->scale *
1.6 schwarze 1155: fonts[(int)TERMFONT_NONE].gly[110 - 32].wx;
1156: break;
1157: case (SCALE_VS):
1.17 schwarze 1158: r = su->scale * p->ps->lineheight;
1.6 schwarze 1159: break;
1160: default:
1161: r = su->scale;
1162: break;
1163: }
1164:
1165: return(r);
1.17 schwarze 1166: }
1167:
1168: static void
1169: ps_growbuf(struct termp *p, size_t sz)
1170: {
1171: if (p->ps->psmargcur + sz <= p->ps->psmargsz)
1172: return;
1173:
1174: if (sz < PS_BUFSLOP)
1175: sz = PS_BUFSLOP;
1176:
1177: p->ps->psmargsz += sz;
1178:
1179: p->ps->psmarg = mandoc_realloc
1180: (p->ps->psmarg, p->ps->psmargsz);
1.3 schwarze 1181: }
1.6 schwarze 1182: