Annotation of mandoc/term_ps.c, Revision 1.41
1.41 ! kristaps 1: /* $Id: term_ps.c,v 1.40 2010/08/01 15:46:18 joerg Exp $ */
1.1 kristaps 2: /*
1.34 schwarze 3: * Copyright (c) 2010 Kristaps Dzonsons <kristaps@bsd.lv>
1.1 kristaps 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: */
17: #ifdef HAVE_CONFIG_H
18: #include "config.h"
19: #endif
20:
1.4 kristaps 21: #include <sys/param.h>
22:
1.2 kristaps 23: #include <assert.h>
1.4 kristaps 24: #include <stdarg.h>
1.17 kristaps 25: #include <stdint.h>
1.2 kristaps 26: #include <stdio.h>
1.1 kristaps 27: #include <stdlib.h>
1.4 kristaps 28: #include <string.h>
1.13 kristaps 29: #include <time.h>
1.26 kristaps 30: #include <unistd.h>
1.1 kristaps 31:
32: #include "out.h"
33: #include "main.h"
34: #include "term.h"
35:
1.21 kristaps 36: /* Convert PostScript point "x" to an AFM unit. */
1.25 kristaps 37: #define PNT2AFM(p, x) /* LINTED */ \
1.21 kristaps 38: (size_t)((double)(x) * (1000.0 / (double)(p)->engine.ps.scale))
39:
40: /* Convert an AFM unit "x" to a PostScript points */
1.25 kristaps 41: #define AFM2PNT(p, x) /* LINTED */ \
1.35 kristaps 42: ((double)(x) / (1000.0 / (double)(p)->engine.ps.scale))
1.21 kristaps 43:
1.13 kristaps 44: struct glyph {
1.36 kristaps 45: unsigned short wx; /* WX in AFM */
1.13 kristaps 46: };
47:
48: struct font {
49: const char *name; /* FontName in AFM */
1.15 kristaps 50: #define MAXCHAR 95 /* total characters we can handle */
1.13 kristaps 51: struct glyph gly[MAXCHAR]; /* glyph metrics */
52: };
53:
54: /*
55: * We define, for the time being, three fonts: bold, oblique/italic, and
56: * normal (roman). The following table hard-codes the font metrics for
57: * ASCII, i.e., 32--127.
58: */
59:
1.16 kristaps 60: static const struct font fonts[TERMFONT__MAX] = {
1.24 kristaps 61: { "Times-Roman", {
62: { 250 },
63: { 333 },
64: { 408 },
65: { 500 },
66: { 500 },
67: { 833 },
68: { 778 },
69: { 333 },
70: { 333 },
71: { 333 },
72: { 500 },
73: { 564 },
74: { 250 },
75: { 333 },
76: { 250 },
77: { 278 },
78: { 500 },
79: { 500 },
80: { 500 },
81: { 500 },
82: { 500 },
83: { 500 },
84: { 500 },
85: { 500 },
86: { 500 },
87: { 500 },
88: { 278 },
89: { 278 },
90: { 564 },
91: { 564 },
92: { 564 },
93: { 444 },
94: { 921 },
95: { 722 },
96: { 667 },
97: { 667 },
98: { 722 },
99: { 611 },
100: { 556 },
101: { 722 },
102: { 722 },
103: { 333 },
104: { 389 },
105: { 722 },
106: { 611 },
107: { 889 },
108: { 722 },
109: { 722 },
110: { 556 },
111: { 722 },
112: { 667 },
113: { 556 },
114: { 611 },
115: { 722 },
116: { 722 },
117: { 944 },
118: { 722 },
119: { 722 },
120: { 611 },
121: { 333 },
122: { 278 },
123: { 333 },
124: { 469 },
125: { 500 },
126: { 333 },
127: { 444 },
128: { 500 },
129: { 444 },
130: { 500},
131: { 444},
132: { 333},
133: { 500},
134: { 500},
135: { 278},
136: { 278},
137: { 500},
138: { 278},
139: { 778},
140: { 500},
141: { 500},
142: { 500},
143: { 500},
144: { 333},
145: { 389},
146: { 278},
147: { 500},
148: { 500},
149: { 722},
150: { 500},
151: { 500},
152: { 444},
153: { 480},
154: { 200},
155: { 480},
156: { 541},
157: } },
158: { "Times-Bold", {
159: { 250 },
160: { 333 },
161: { 555 },
162: { 500 },
163: { 500 },
164: { 1000 },
165: { 833 },
166: { 333 },
167: { 333 },
168: { 333 },
169: { 500 },
170: { 570 },
171: { 250 },
172: { 333 },
173: { 250 },
174: { 278 },
175: { 500 },
176: { 500 },
177: { 500 },
178: { 500 },
179: { 500 },
180: { 500 },
181: { 500 },
182: { 500 },
183: { 500 },
184: { 500 },
185: { 333 },
186: { 333 },
187: { 570 },
188: { 570 },
189: { 570 },
190: { 500 },
191: { 930 },
192: { 722 },
193: { 667 },
194: { 722 },
195: { 722 },
196: { 667 },
197: { 611 },
198: { 778 },
199: { 778 },
200: { 389 },
201: { 500 },
202: { 778 },
203: { 667 },
204: { 944 },
205: { 722 },
206: { 778 },
207: { 611 },
208: { 778 },
209: { 722 },
210: { 556 },
211: { 667 },
212: { 722 },
213: { 722 },
214: { 1000 },
215: { 722 },
216: { 722 },
217: { 667 },
218: { 333 },
219: { 278 },
220: { 333 },
221: { 581 },
222: { 500 },
223: { 333 },
224: { 500 },
225: { 556 },
226: { 444 },
1.22 kristaps 227: { 556 },
1.24 kristaps 228: { 444 },
229: { 333 },
1.22 kristaps 230: { 500 },
1.24 kristaps 231: { 556 },
1.22 kristaps 232: { 278 },
1.24 kristaps 233: { 333 },
234: { 556 },
1.22 kristaps 235: { 278 },
1.24 kristaps 236: { 833 },
1.22 kristaps 237: { 556 },
1.24 kristaps 238: { 500 },
1.22 kristaps 239: { 556 },
240: { 556 },
241: { 444 },
1.24 kristaps 242: { 389 },
243: { 333 },
1.22 kristaps 244: { 556 },
245: { 500 },
1.24 kristaps 246: { 722 },
247: { 500 },
1.22 kristaps 248: { 500 },
1.24 kristaps 249: { 444 },
250: { 394 },
251: { 220 },
252: { 394 },
253: { 520 },
1.13 kristaps 254: } },
1.24 kristaps 255: { "Times-Italic", {
256: { 250 },
257: { 333 },
258: { 420 },
259: { 500 },
260: { 500 },
261: { 833 },
262: { 778 },
263: { 333 },
264: { 333 },
265: { 333 },
266: { 500 },
267: { 675 },
268: { 250 },
269: { 333 },
270: { 250 },
271: { 278 },
272: { 500 },
273: { 500 },
274: { 500 },
275: { 500 },
276: { 500 },
277: { 500 },
278: { 500 },
279: { 500 },
280: { 500 },
281: { 500 },
282: { 333 },
283: { 333 },
284: { 675 },
285: { 675 },
286: { 675 },
287: { 500 },
288: { 920 },
289: { 611 },
290: { 611 },
291: { 667 },
292: { 722 },
293: { 611 },
294: { 611 },
295: { 722 },
296: { 722 },
297: { 333 },
298: { 444 },
299: { 667 },
300: { 556 },
301: { 833 },
302: { 667 },
303: { 722 },
304: { 611 },
305: { 722 },
306: { 611 },
307: { 500 },
308: { 556 },
309: { 722 },
310: { 611 },
311: { 833 },
312: { 611 },
313: { 556 },
314: { 556 },
315: { 389 },
316: { 278 },
317: { 389 },
318: { 422 },
319: { 500 },
320: { 333 },
321: { 500 },
322: { 500 },
323: { 444 },
1.22 kristaps 324: { 500 },
1.24 kristaps 325: { 444 },
326: { 278 },
1.22 kristaps 327: { 500 },
328: { 500 },
329: { 278 },
1.24 kristaps 330: { 278 },
331: { 444 },
332: { 278 },
333: { 722 },
334: { 500 },
335: { 500 },
336: { 500 },
1.22 kristaps 337: { 500 },
1.24 kristaps 338: { 389 },
339: { 389 },
1.22 kristaps 340: { 278 },
341: { 500 },
1.24 kristaps 342: { 444 },
343: { 667 },
344: { 444 },
345: { 444 },
346: { 389 },
347: { 400 },
1.22 kristaps 348: { 275 },
1.24 kristaps 349: { 400 },
350: { 541 },
1.13 kristaps 351: } },
352: };
353:
1.15 kristaps 354: /* These work the buffer used by the header and footer. */
1.4 kristaps 355: #define PS_BUFSLOP 128
356:
1.40 joerg 357: static void
358: ps_growbuf(struct termp *p, size_t sz)
359: {
360: if (p->engine.ps.psmargcur + sz <= p->engine.ps.psmargsz)
361: return;
362:
363: if (sz < PS_BUFSLOP)
364: sz = PS_BUFSLOP;
1.41 ! kristaps 365:
1.40 joerg 366: p->engine.ps.psmargsz += sz;
367:
1.41 ! kristaps 368: p->engine.ps.psmarg = realloc
! 369: (p->engine.ps.psmarg,
! 370: p->engine.ps.psmargsz);
! 371:
! 372: if (NULL == p->engine.ps.psmarg) {
1.40 joerg 373: perror(NULL);
374: exit(EXIT_FAILURE);
1.41 ! kristaps 375: }
1.40 joerg 376: }
1.9 kristaps 377:
1.20 kristaps 378: static double ps_hspan(const struct termp *,
1.19 kristaps 379: const struct roffsu *);
380: static size_t ps_width(const struct termp *, char);
381: static void ps_advance(struct termp *, size_t);
1.2 kristaps 382: static void ps_begin(struct termp *);
1.37 kristaps 383: static void ps_closepage(struct termp *);
1.2 kristaps 384: static void ps_end(struct termp *);
385: static void ps_endline(struct termp *);
1.9 kristaps 386: static void ps_fclose(struct termp *);
1.19 kristaps 387: static void ps_letter(struct termp *, char);
1.9 kristaps 388: static void ps_pclose(struct termp *);
1.13 kristaps 389: static void ps_pletter(struct termp *, int);
1.4 kristaps 390: static void ps_printf(struct termp *, const char *, ...);
391: static void ps_putchar(struct termp *, char);
1.9 kristaps 392: static void ps_setfont(struct termp *, enum termfont);
1.37 kristaps 393: static struct termp *pspdf_alloc(char *);
1.39 kristaps 394: static void pdf_obj(struct termp *, size_t);
1.37 kristaps 395:
396:
397: void *
398: pdf_alloc(char *outopts)
399: {
400: struct termp *p;
401:
1.38 kristaps 402: if (NULL != (p = pspdf_alloc(outopts)))
403: p->type = TERMTYPE_PDF;
1.37 kristaps 404:
405: return(p);
406: }
1.2 kristaps 407:
408:
1.1 kristaps 409: void *
1.17 kristaps 410: ps_alloc(char *outopts)
1.1 kristaps 411: {
412: struct termp *p;
1.37 kristaps 413:
1.38 kristaps 414: if (NULL != (p = pspdf_alloc(outopts)))
415: p->type = TERMTYPE_PS;
1.37 kristaps 416:
417: return(p);
418: }
419:
420:
421: static struct termp *
422: pspdf_alloc(char *outopts)
423: {
424: struct termp *p;
1.28 kristaps 425: size_t pagex, pagey, marginx, marginy, lineheight;
1.17 kristaps 426: const char *toks[2];
1.25 kristaps 427: const char *pp;
1.17 kristaps 428: char *v;
1.1 kristaps 429:
430: if (NULL == (p = term_alloc(TERMENC_ASCII)))
431: return(NULL);
432:
1.19 kristaps 433: p->advance = ps_advance;
1.2 kristaps 434: p->begin = ps_begin;
435: p->end = ps_end;
436: p->endline = ps_endline;
1.19 kristaps 437: p->hspan = ps_hspan;
438: p->letter = ps_letter;
1.11 kristaps 439: p->width = ps_width;
1.21 kristaps 440:
1.17 kristaps 441: toks[0] = "paper";
442: toks[1] = NULL;
443:
1.25 kristaps 444: pp = NULL;
1.19 kristaps 445:
1.17 kristaps 446: while (outopts && *outopts)
447: switch (getsubopt(&outopts, UNCONST(toks), &v)) {
448: case (0):
1.25 kristaps 449: pp = v;
1.17 kristaps 450: break;
451: default:
452: break;
453: }
1.16 kristaps 454:
1.25 kristaps 455: /* Default to US letter (millimetres). */
456:
1.31 kristaps 457: pagex = 216;
458: pagey = 279;
1.25 kristaps 459:
460: /*
461: * The ISO-269 paper sizes can be calculated automatically, but
462: * it would require bringing in -lm for pow() and I'd rather not
463: * do that. So just do it the easy way for now. Since this
464: * only happens once, I'm not terribly concerned.
465: */
466:
467: if (pp && strcasecmp(pp, "letter")) {
468: if (0 == strcasecmp(pp, "a3")) {
469: pagex = 297;
470: pagey = 420;
471: } else if (0 == strcasecmp(pp, "a4")) {
472: pagex = 210;
473: pagey = 297;
474: } else if (0 == strcasecmp(pp, "a5")) {
475: pagex = 148;
476: pagey = 210;
477: } else if (0 == strcasecmp(pp, "legal")) {
478: pagex = 216;
479: pagey = 356;
480: } else if (2 != sscanf(pp, "%zux%zu", &pagex, &pagey))
481: fprintf(stderr, "%s: Unknown paper\n", pp);
1.27 kristaps 482: } else if (NULL == pp)
483: pp = "letter";
484:
485: /*
486: * This MUST be defined before any PNT2AFM or AFM2PNT
487: * calculations occur.
488: */
489:
490: p->engine.ps.scale = 11;
491:
1.25 kristaps 492: /* Remember millimetres -> AFM units. */
493:
494: pagex = PNT2AFM(p, ((double)pagex * 2.834));
495: pagey = PNT2AFM(p, ((double)pagey * 2.834));
496:
1.28 kristaps 497: /* Margins are 1/9 the page x and y. */
1.27 kristaps 498:
1.29 kristaps 499: marginx = /* LINTED */
500: (size_t)((double)pagex / 9.0);
501: marginy = /* LINTED */
502: (size_t)((double)pagey / 9.0);
1.27 kristaps 503:
1.31 kristaps 504: /* Line-height is 1.4em. */
505:
506: lineheight = PNT2AFM(p, ((double)p->engine.ps.scale * 1.4));
1.16 kristaps 507:
508: p->engine.ps.width = pagex;
509: p->engine.ps.height = pagey;
1.28 kristaps 510: p->engine.ps.header = pagey - (marginy / 2) - (lineheight / 2);
511: p->engine.ps.top = pagey - marginy;
512: p->engine.ps.footer = (marginy / 2) - (lineheight / 2);
513: p->engine.ps.bottom = marginy;
514: p->engine.ps.left = marginx;
1.18 kristaps 515: p->engine.ps.lineheight = lineheight;
1.16 kristaps 516:
1.28 kristaps 517: p->defrmargin = pagex - (marginx * 2);
1.1 kristaps 518: return(p);
519: }
520:
521:
522: void
1.37 kristaps 523: pspdf_free(void *arg)
1.1 kristaps 524: {
1.4 kristaps 525: struct termp *p;
526:
527: p = (struct termp *)arg;
528:
529: if (p->engine.ps.psmarg)
530: free(p->engine.ps.psmarg);
1.39 kristaps 531: if (p->engine.ps.pdfobjs)
532: free(p->engine.ps.pdfobjs);
1.4 kristaps 533:
534: term_free(p);
535: }
536:
537:
538: static void
539: ps_printf(struct termp *p, const char *fmt, ...)
540: {
541: va_list ap;
1.37 kristaps 542: int pos, len;
1.4 kristaps 543:
544: va_start(ap, fmt);
545:
546: /*
547: * If we're running in regular mode, then pipe directly into
548: * vprintf(). If we're processing margins, then push the data
549: * into our growable margin buffer.
550: */
1.1 kristaps 551:
1.29 kristaps 552: if ( ! (PS_MARGINS & p->engine.ps.flags)) {
1.37 kristaps 553: len = vprintf(fmt, ap);
1.4 kristaps 554: va_end(ap);
1.37 kristaps 555: p->engine.ps.pdfbytes += /* LINTED */
556: len < 0 ? 0 : (size_t)len;
1.4 kristaps 557: return;
558: }
559:
560: /*
561: * XXX: I assume that the in-margin print won't exceed
562: * PS_BUFSLOP (128 bytes), which is reasonable but still an
563: * assumption that will cause pukeage if it's not the case.
564: */
565:
1.40 joerg 566: ps_growbuf(p, PS_BUFSLOP);
1.4 kristaps 567:
568: pos = (int)p->engine.ps.psmargcur;
1.37 kristaps 569: len = vsnprintf(&p->engine.ps.psmarg[pos], PS_BUFSLOP, fmt, ap);
1.5 kristaps 570:
571: va_end(ap);
1.37 kristaps 572:
573: p->engine.ps.psmargcur = strlen(p->engine.ps.psmarg);
1.4 kristaps 574: }
575:
576:
577: static void
578: ps_putchar(struct termp *p, char c)
579: {
580: int pos;
581:
582: /* See ps_printf(). */
583:
1.29 kristaps 584: if ( ! (PS_MARGINS & p->engine.ps.flags)) {
1.4 kristaps 585: putchar(c);
1.37 kristaps 586: p->engine.ps.pdfbytes++;
1.4 kristaps 587: return;
588: }
589:
1.40 joerg 590: ps_growbuf(p, 2);
1.4 kristaps 591:
592: pos = (int)p->engine.ps.psmargcur++;
1.5 kristaps 593: p->engine.ps.psmarg[pos++] = c;
1.4 kristaps 594: p->engine.ps.psmarg[pos] = '\0';
1.2 kristaps 595: }
596:
597:
1.37 kristaps 598: static void
1.39 kristaps 599: pdf_obj(struct termp *p, size_t obj)
600: {
601:
602: assert(obj > 0);
603:
604: if ((obj - 1) >= p->engine.ps.pdfobjsz) {
605: p->engine.ps.pdfobjsz = obj + 128;
606: p->engine.ps.pdfobjs = realloc
607: (p->engine.ps.pdfobjs,
608: p->engine.ps.pdfobjsz * sizeof(size_t));
609: if (NULL == p->engine.ps.pdfobjs) {
610: perror(NULL);
611: exit(EXIT_FAILURE);
612: }
613: }
614:
615: p->engine.ps.pdfobjs[(int)obj - 1] = p->engine.ps.pdfbytes;
616: ps_printf(p, "%zu 0 obj\n", obj);
617: }
618:
619:
620: static void
1.37 kristaps 621: ps_closepage(struct termp *p)
622: {
623: int i;
1.38 kristaps 624: size_t len, base;
625:
626: /*
627: * Close out a page that we've already flushed to output. In
628: * PostScript, we simply note that the page must be showed. In
629: * PDF, we must now create the Length, Resource, and Page node
630: * for the page contents.
631: */
1.37 kristaps 632:
633: assert(p->engine.ps.psmarg && p->engine.ps.psmarg[0]);
634: ps_printf(p, "%s", p->engine.ps.psmarg);
635:
1.38 kristaps 636: if (TERMTYPE_PS != p->type) {
1.37 kristaps 637: ps_printf(p, "ET\n");
1.38 kristaps 638:
1.37 kristaps 639: len = p->engine.ps.pdfbytes - p->engine.ps.pdflastpg;
1.38 kristaps 640: base = p->engine.ps.pages * 4 + p->engine.ps.pdfbody;
641:
642: ps_printf(p, "endstream\nendobj\n");
643:
644: /* Length of content. */
1.39 kristaps 645: pdf_obj(p, base + 1);
1.38 kristaps 646: ps_printf(p, "%zu\nendobj\n", len);
647:
648: /* Resource for content. */
1.39 kristaps 649: pdf_obj(p, base + 2);
1.38 kristaps 650: ps_printf(p, "<<\n/ProcSet [/PDF /Text]\n");
1.37 kristaps 651: ps_printf(p, "/Font <<\n");
1.39 kristaps 652: for (i = 0; i < (int)TERMFONT__MAX; i++)
1.37 kristaps 653: ps_printf(p, "/F%d %d 0 R\n", i, 3 + i);
1.38 kristaps 654: ps_printf(p, ">>\n>>\n");
655:
656: /* Page node. */
1.39 kristaps 657: pdf_obj(p, base + 3);
658: ps_printf(p, "<<\n");
1.37 kristaps 659: ps_printf(p, "/Type /Page\n");
660: ps_printf(p, "/Parent 2 0 R\n");
1.38 kristaps 661: ps_printf(p, "/Resources %zu 0 R\n", base + 2);
662: ps_printf(p, "/Contents %zu 0 R\n", base);
663: ps_printf(p, ">>\nendobj\n");
664: } else
665: ps_printf(p, "showpage\n");
1.37 kristaps 666:
667: p->engine.ps.pages++;
668: p->engine.ps.psrow = p->engine.ps.top;
669: assert( ! (PS_NEWPAGE & p->engine.ps.flags));
670: p->engine.ps.flags |= PS_NEWPAGE;
671: }
672:
673:
1.3 kristaps 674: /* ARGSUSED */
1.2 kristaps 675: static void
676: ps_end(struct termp *p)
677: {
1.38 kristaps 678: size_t i, xref, base;
1.2 kristaps 679:
1.4 kristaps 680: /*
681: * At the end of the file, do one last showpage. This is the
682: * same behaviour as groff(1) and works for multiple pages as
683: * well as just one.
684: */
685:
1.30 kristaps 686: if ( ! (PS_NEWPAGE & p->engine.ps.flags)) {
687: assert(0 == p->engine.ps.flags);
688: assert('\0' == p->engine.ps.last);
1.37 kristaps 689: ps_closepage(p);
1.30 kristaps 690: }
1.16 kristaps 691:
1.37 kristaps 692: if (TERMTYPE_PS == p->type) {
693: ps_printf(p, "%%%%Trailer\n");
694: ps_printf(p, "%%%%Pages: %zu\n", p->engine.ps.pages);
695: ps_printf(p, "%%%%EOF\n");
696: return;
697: }
698:
1.39 kristaps 699: pdf_obj(p, 2);
700: ps_printf(p, "<<\n/Type /Pages\n");
1.37 kristaps 701: ps_printf(p, "/MediaBox [0 0 %zu %zu]\n",
702: (size_t)AFM2PNT(p, p->engine.ps.width),
703: (size_t)AFM2PNT(p, p->engine.ps.height));
704:
705: ps_printf(p, "/Count %zu\n", p->engine.ps.pages);
706: ps_printf(p, "/Kids [");
707:
708: for (i = 0; i < p->engine.ps.pages; i++)
1.38 kristaps 709: ps_printf(p, " %zu 0 R", i * 4 +
710: p->engine.ps.pdfbody + 3);
711:
712: base = (p->engine.ps.pages - 1) * 4 +
713: p->engine.ps.pdfbody + 4;
714:
715: ps_printf(p, "]\n>>\nendobj\n");
1.39 kristaps 716: pdf_obj(p, base);
1.37 kristaps 717: ps_printf(p, "<<\n");
718: ps_printf(p, "/Type /Catalog\n");
719: ps_printf(p, "/Pages 2 0 R\n");
720: ps_printf(p, ">>\n");
721: xref = p->engine.ps.pdfbytes;
722: ps_printf(p, "xref\n");
1.38 kristaps 723: ps_printf(p, "0 %zu\n", base + 1);
1.39 kristaps 724: ps_printf(p, "0000000000 65535 f \n");
725:
726: for (i = 0; i < base; i++)
727: ps_printf(p, "%.10zu 00000 n \n",
728: p->engine.ps.pdfobjs[(int)i]);
729:
1.37 kristaps 730: ps_printf(p, "trailer\n");
731: ps_printf(p, "<<\n");
1.38 kristaps 732: ps_printf(p, "/Size %zu\n", base + 1);
733: ps_printf(p, "/Root %zu 0 R\n", base);
1.37 kristaps 734: ps_printf(p, "/Info 1 0 R\n");
735: ps_printf(p, ">>\n");
736: ps_printf(p, "startxref\n");
737: ps_printf(p, "%zu\n", xref);
738: ps_printf(p, "%%%%EOF\n");
1.2 kristaps 739: }
740:
741:
742: static void
743: ps_begin(struct termp *p)
744: {
1.13 kristaps 745: time_t t;
1.16 kristaps 746: int i;
1.2 kristaps 747:
1.9 kristaps 748: /*
749: * Print margins into margin buffer. Nothing gets output to the
750: * screen yet, so we don't need to initialise the primary state.
1.2 kristaps 751: */
752:
1.4 kristaps 753: if (p->engine.ps.psmarg) {
754: assert(p->engine.ps.psmargsz);
755: p->engine.ps.psmarg[0] = '\0';
756: }
757:
1.39 kristaps 758: /*p->engine.ps.pdfbytes = 0;*/
1.4 kristaps 759: p->engine.ps.psmargcur = 0;
1.29 kristaps 760: p->engine.ps.flags = PS_MARGINS;
1.16 kristaps 761: p->engine.ps.pscol = p->engine.ps.left;
762: p->engine.ps.psrow = p->engine.ps.header;
1.4 kristaps 763:
1.9 kristaps 764: ps_setfont(p, TERMFONT_NONE);
1.4 kristaps 765:
766: (*p->headf)(p, p->argf);
767: (*p->endline)(p);
768:
1.16 kristaps 769: p->engine.ps.pscol = p->engine.ps.left;
770: p->engine.ps.psrow = p->engine.ps.footer;
1.4 kristaps 771:
772: (*p->footf)(p, p->argf);
773: (*p->endline)(p);
774:
1.29 kristaps 775: p->engine.ps.flags &= ~PS_MARGINS;
1.9 kristaps 776:
1.29 kristaps 777: assert(0 == p->engine.ps.flags);
1.9 kristaps 778: assert(p->engine.ps.psmarg);
779: assert('\0' != p->engine.ps.psmarg[0]);
780:
781: /*
782: * Print header and initialise page state. Following this,
783: * stuff gets printed to the screen, so make sure we're sane.
784: */
1.4 kristaps 785:
1.13 kristaps 786: t = time(NULL);
787:
1.37 kristaps 788: if (TERMTYPE_PS == p->type) {
789: ps_printf(p, "%%!PS-Adobe-3.0\n");
790: ps_printf(p, "%%%%Creator: mandoc-%s\n", VERSION);
791: ps_printf(p, "%%%%CreationDate: %s", ctime(&t));
792: ps_printf(p, "%%%%DocumentData: Clean7Bit\n");
793: ps_printf(p, "%%%%Orientation: Portrait\n");
794: ps_printf(p, "%%%%Pages: (atend)\n");
795: ps_printf(p, "%%%%PageOrder: Ascend\n");
796: ps_printf(p, "%%%%DocumentMedia: "
797: "Default %zu %zu 0 () ()\n",
798: (size_t)AFM2PNT(p, p->engine.ps.width),
799: (size_t)AFM2PNT(p, p->engine.ps.height));
800: ps_printf(p, "%%%%DocumentNeededResources: font");
801:
802: for (i = 0; i < (int)TERMFONT__MAX; i++)
803: ps_printf(p, " %s", fonts[i].name);
804:
805: ps_printf(p, "\n%%%%EndComments\n");
806: } else {
807: ps_printf(p, "%%PDF-1.1\n");
1.39 kristaps 808: pdf_obj(p, 1);
1.37 kristaps 809: ps_printf(p, "<<\n");
810: ps_printf(p, "/Creator mandoc-%s\n", VERSION);
811: ps_printf(p, ">>\n");
812: ps_printf(p, "endobj\n");
813:
814: for (i = 0; i < (int)TERMFONT__MAX; i++) {
1.39 kristaps 815: pdf_obj(p, (size_t)i + 3);
1.37 kristaps 816: ps_printf(p, "<<\n");
817: ps_printf(p, "/Type /Font\n");
818: ps_printf(p, "/Subtype /Type1\n");
819: ps_printf(p, "/Name /F%zu\n", i);
820: ps_printf(p, "/BaseFont /%s\n", fonts[i].name);
821: ps_printf(p, ">>\n");
822: }
823: }
1.16 kristaps 824:
1.37 kristaps 825: p->engine.ps.pdfbody = (size_t)TERMFONT__MAX + 3;
1.16 kristaps 826: p->engine.ps.pscol = p->engine.ps.left;
827: p->engine.ps.psrow = p->engine.ps.top;
1.29 kristaps 828: p->engine.ps.flags |= PS_NEWPAGE;
1.33 kristaps 829: ps_setfont(p, TERMFONT_NONE);
1.2 kristaps 830: }
831:
832:
833: static void
1.13 kristaps 834: ps_pletter(struct termp *p, int c)
1.2 kristaps 835: {
1.14 kristaps 836: int f;
1.32 kristaps 837:
1.9 kristaps 838: /*
1.32 kristaps 839: * If we haven't opened a page context, then output that we're
840: * in a new page and make sure the font is correctly set.
1.9 kristaps 841: */
842:
1.32 kristaps 843: if (PS_NEWPAGE & p->engine.ps.flags) {
1.37 kristaps 844: if (TERMTYPE_PS == p->type) {
845: ps_printf(p, "%%%%Page: %zu %zu\n",
846: p->engine.ps.pages + 1,
847: p->engine.ps.pages + 1);
848: ps_printf(p, "/%s %zu selectfont\n",
849: fonts[(int)p->engine.ps.lastf].name,
850: p->engine.ps.scale);
851: } else {
1.39 kristaps 852: pdf_obj(p, p->engine.ps.pdfbody +
1.38 kristaps 853: p->engine.ps.pages * 4);
1.37 kristaps 854: ps_printf(p, "<<\n");
855: ps_printf(p, "/Length %zu 0 R\n",
1.38 kristaps 856: p->engine.ps.pdfbody + 1 +
857: p->engine.ps.pages * 4);
1.37 kristaps 858: ps_printf(p, ">>\nstream\n");
859: }
860: p->engine.ps.pdflastpg = p->engine.ps.pdfbytes;
1.32 kristaps 861: p->engine.ps.flags &= ~PS_NEWPAGE;
862: }
863:
864: /*
865: * If we're not in a PostScript "word" context, then open one
866: * now at the current cursor.
867: */
1.30 kristaps 868:
1.29 kristaps 869: if ( ! (PS_INLINE & p->engine.ps.flags)) {
1.37 kristaps 870: if (TERMTYPE_PS != p->type) {
871: ps_printf(p, "BT\n/F%d %zu Tf\n",
872: (int)p->engine.ps.lastf,
873: p->engine.ps.scale);
874: ps_printf(p, "%.3f %.3f Td\n(",
875: AFM2PNT(p, p->engine.ps.pscol),
876: AFM2PNT(p, p->engine.ps.psrow));
877: } else
878: ps_printf(p, "%.3f %.3f moveto\n(",
879: AFM2PNT(p, p->engine.ps.pscol),
880: AFM2PNT(p, p->engine.ps.psrow));
1.29 kristaps 881: p->engine.ps.flags |= PS_INLINE;
1.2 kristaps 882: }
883:
1.29 kristaps 884: assert( ! (PS_NEWPAGE & p->engine.ps.flags));
885:
1.2 kristaps 886: /*
887: * We need to escape these characters as per the PostScript
888: * specification. We would also escape non-graphable characters
889: * (like tabs), but none of them would get to this point and
890: * it's superfluous to abort() on them.
891: */
892:
893: switch (c) {
894: case ('('):
895: /* FALLTHROUGH */
896: case (')'):
897: /* FALLTHROUGH */
898: case ('\\'):
1.4 kristaps 899: ps_putchar(p, '\\');
1.2 kristaps 900: break;
901: default:
902: break;
903: }
904:
905: /* Write the character and adjust where we are on the page. */
1.9 kristaps 906:
1.14 kristaps 907: f = (int)p->engine.ps.lastf;
1.13 kristaps 908:
1.14 kristaps 909: if (c <= 32 || (c - 32 > MAXCHAR)) {
1.13 kristaps 910: ps_putchar(p, ' ');
1.36 kristaps 911: p->engine.ps.pscol += (size_t)fonts[f].gly[0].wx;
1.13 kristaps 912: return;
913: }
914:
1.25 kristaps 915: ps_putchar(p, (char)c);
1.14 kristaps 916: c -= 32;
1.36 kristaps 917: p->engine.ps.pscol += (size_t)fonts[f].gly[c].wx;
1.2 kristaps 918: }
919:
920:
921: static void
1.9 kristaps 922: ps_pclose(struct termp *p)
923: {
924:
925: /*
926: * Spit out that we're exiting a word context (this is a
927: * "partial close" because we don't check the last-char buffer
928: * or anything).
929: */
930:
1.29 kristaps 931: if ( ! (PS_INLINE & p->engine.ps.flags))
1.9 kristaps 932: return;
933:
1.37 kristaps 934: if (TERMTYPE_PS != p->type) {
935: ps_printf(p, ") Tj\nET\n");
936: } else
937: ps_printf(p, ") show\n");
938:
1.29 kristaps 939: p->engine.ps.flags &= ~PS_INLINE;
1.9 kristaps 940: }
941:
942:
943: static void
944: ps_fclose(struct termp *p)
945: {
946:
947: /*
948: * Strong closure: if we have a last-char, spit it out after
949: * checking that we're in the right font mode. This will of
950: * course open a new scope, if applicable.
951: *
952: * Following this, close out any scope that's open.
953: */
954:
955: if ('\0' != p->engine.ps.last) {
956: if (p->engine.ps.lastf != TERMFONT_NONE) {
957: ps_pclose(p);
958: ps_setfont(p, TERMFONT_NONE);
959: }
960: ps_pletter(p, p->engine.ps.last);
961: p->engine.ps.last = '\0';
962: }
963:
1.29 kristaps 964: if ( ! (PS_INLINE & p->engine.ps.flags))
1.9 kristaps 965: return;
966:
967: ps_pclose(p);
968: }
969:
970:
971: static void
1.8 kristaps 972: ps_letter(struct termp *p, char c)
973: {
974: char cc;
1.9 kristaps 975:
976: /*
977: * State machine dictates whether to buffer the last character
978: * or not. Basically, encoded words are detected by checking if
979: * we're an "8" and switching on the buffer. Then we put "8" in
980: * our buffer, and on the next charater, flush both character
981: * and buffer. Thus, "regular" words are detected by having a
982: * regular character and a regular buffer character.
983: */
984:
1.8 kristaps 985: if ('\0' == p->engine.ps.last) {
986: assert(8 != c);
987: p->engine.ps.last = c;
988: return;
989: } else if (8 == p->engine.ps.last) {
990: assert(8 != c);
1.9 kristaps 991: p->engine.ps.last = '\0';
1.8 kristaps 992: } else if (8 == c) {
993: assert(8 != p->engine.ps.last);
1.9 kristaps 994: if ('_' == p->engine.ps.last) {
995: if (p->engine.ps.lastf != TERMFONT_UNDER) {
996: ps_pclose(p);
997: ps_setfont(p, TERMFONT_UNDER);
998: }
999: } else if (p->engine.ps.lastf != TERMFONT_BOLD) {
1000: ps_pclose(p);
1001: ps_setfont(p, TERMFONT_BOLD);
1002: }
1.8 kristaps 1003: p->engine.ps.last = c;
1004: return;
1005: } else {
1.9 kristaps 1006: if (p->engine.ps.lastf != TERMFONT_NONE) {
1007: ps_pclose(p);
1008: ps_setfont(p, TERMFONT_NONE);
1009: }
1.8 kristaps 1010: cc = p->engine.ps.last;
1011: p->engine.ps.last = c;
1012: c = cc;
1013: }
1014:
1.9 kristaps 1015: ps_pletter(p, c);
1.8 kristaps 1016: }
1017:
1018:
1019: static void
1.2 kristaps 1020: ps_advance(struct termp *p, size_t len)
1021: {
1022:
1.9 kristaps 1023: /*
1024: * Advance some spaces. This can probably be made smarter,
1025: * i.e., to have multiple space-separated words in the same
1026: * scope, but this is easier: just close out the current scope
1027: * and readjust our column settings.
1028: */
1.8 kristaps 1029:
1.9 kristaps 1030: ps_fclose(p);
1.14 kristaps 1031: p->engine.ps.pscol += len;
1.2 kristaps 1032: }
1033:
1034:
1035: static void
1036: ps_endline(struct termp *p)
1037: {
1.8 kristaps 1038:
1.9 kristaps 1039: /* Close out any scopes we have open: we're at eoln. */
1040:
1041: ps_fclose(p);
1.2 kristaps 1042:
1.9 kristaps 1043: /*
1044: * If we're in the margin, don't try to recalculate our current
1045: * row. XXX: if the column tries to be fancy with multiple
1046: * lines, we'll do nasty stuff.
1047: */
1.2 kristaps 1048:
1.29 kristaps 1049: if (PS_MARGINS & p->engine.ps.flags)
1050: return;
1051:
1052: /* Left-justify. */
1053:
1054: p->engine.ps.pscol = p->engine.ps.left;
1055:
1056: /* If we haven't printed anything, return. */
1057:
1058: if (PS_NEWPAGE & p->engine.ps.flags)
1.2 kristaps 1059: return;
1060:
1.9 kristaps 1061: /*
1062: * Put us down a line. If we're at the page bottom, spit out a
1063: * showpage and restart our row.
1064: */
1065:
1.16 kristaps 1066: if (p->engine.ps.psrow >= p->engine.ps.lineheight +
1067: p->engine.ps.bottom) {
1068: p->engine.ps.psrow -= p->engine.ps.lineheight;
1.2 kristaps 1069: return;
1070: }
1071:
1.37 kristaps 1072: ps_closepage(p);
1.1 kristaps 1073: }
1.9 kristaps 1074:
1075:
1076: static void
1077: ps_setfont(struct termp *p, enum termfont f)
1078: {
1079:
1.16 kristaps 1080: assert(f < TERMFONT__MAX);
1.32 kristaps 1081: p->engine.ps.lastf = f;
1082:
1083: /*
1084: * If we're still at the top of the page, let the font-setting
1085: * be delayed until we actually have stuff to print.
1086: */
1087:
1088: if (PS_NEWPAGE & p->engine.ps.flags)
1089: return;
1090:
1.37 kristaps 1091: if (TERMTYPE_PS == p->type)
1092: ps_printf(p, "/%s %zu selectfont\n",
1093: fonts[(int)f].name,
1094: p->engine.ps.scale);
1095: else
1096: ps_printf(p, "/F%d %zu Tf\n",
1097: (int)f,
1098: p->engine.ps.scale);
1.9 kristaps 1099: }
1100:
1.11 kristaps 1101:
1.12 kristaps 1102: /* ARGSUSED */
1.11 kristaps 1103: static size_t
1104: ps_width(const struct termp *p, char c)
1105: {
1106:
1.14 kristaps 1107: if (c <= 32 || c - 32 >= MAXCHAR)
1.36 kristaps 1108: return((size_t)fonts[(int)TERMFONT_NONE].gly[0].wx);
1.14 kristaps 1109:
1110: c -= 32;
1.36 kristaps 1111: return((size_t)fonts[(int)TERMFONT_NONE].gly[(int)c].wx);
1.11 kristaps 1112: }
1.19 kristaps 1113:
1114:
1.20 kristaps 1115: static double
1.19 kristaps 1116: ps_hspan(const struct termp *p, const struct roffsu *su)
1117: {
1118: double r;
1119:
1120: /*
1121: * All of these measurements are derived by converting from the
1.21 kristaps 1122: * native measurement to AFM units.
1.19 kristaps 1123: */
1124:
1125: switch (su->unit) {
1126: case (SCALE_CM):
1.21 kristaps 1127: r = PNT2AFM(p, su->scale * 28.34);
1.19 kristaps 1128: break;
1129: case (SCALE_IN):
1.21 kristaps 1130: r = PNT2AFM(p, su->scale * 72);
1.19 kristaps 1131: break;
1132: case (SCALE_PC):
1.21 kristaps 1133: r = PNT2AFM(p, su->scale * 12);
1.19 kristaps 1134: break;
1135: case (SCALE_PT):
1.21 kristaps 1136: r = PNT2AFM(p, su->scale * 100);
1.19 kristaps 1137: break;
1138: case (SCALE_EM):
1.36 kristaps 1139: r = su->scale *
1.19 kristaps 1140: fonts[(int)TERMFONT_NONE].gly[109 - 32].wx;
1141: break;
1142: case (SCALE_MM):
1.21 kristaps 1143: r = PNT2AFM(p, su->scale * 2.834);
1.19 kristaps 1144: break;
1145: case (SCALE_EN):
1.36 kristaps 1146: r = su->scale *
1.19 kristaps 1147: fonts[(int)TERMFONT_NONE].gly[110 - 32].wx;
1148: break;
1149: case (SCALE_VS):
1150: r = su->scale * p->engine.ps.lineheight;
1151: break;
1152: default:
1153: r = su->scale;
1154: break;
1155: }
1156:
1.20 kristaps 1157: return(r);
1.19 kristaps 1158: }
1159:
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