Annotation of mandoc/term_ps.c, Revision 1.47
1.47 ! schwarze 1: /* $Id: term_ps.c,v 1.46 2011/01/25 17:32:04 kristaps 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:
1.43 kristaps 21: #include <sys/types.h>
1.4 kristaps 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:
1.42 schwarze 32: #include "mandoc.h"
1.1 kristaps 33: #include "out.h"
34: #include "main.h"
35: #include "term.h"
36:
1.21 kristaps 37: /* Convert PostScript point "x" to an AFM unit. */
1.25 kristaps 38: #define PNT2AFM(p, x) /* LINTED */ \
1.21 kristaps 39: (size_t)((double)(x) * (1000.0 / (double)(p)->engine.ps.scale))
40:
41: /* Convert an AFM unit "x" to a PostScript points */
1.25 kristaps 42: #define AFM2PNT(p, x) /* LINTED */ \
1.35 kristaps 43: ((double)(x) / (1000.0 / (double)(p)->engine.ps.scale))
1.21 kristaps 44:
1.13 kristaps 45: struct glyph {
1.36 kristaps 46: unsigned short wx; /* WX in AFM */
1.13 kristaps 47: };
48:
49: struct font {
50: const char *name; /* FontName in AFM */
1.15 kristaps 51: #define MAXCHAR 95 /* total characters we can handle */
1.13 kristaps 52: struct glyph gly[MAXCHAR]; /* glyph metrics */
53: };
54:
55: /*
56: * We define, for the time being, three fonts: bold, oblique/italic, and
57: * normal (roman). The following table hard-codes the font metrics for
58: * ASCII, i.e., 32--127.
59: */
60:
1.16 kristaps 61: static const struct font fonts[TERMFONT__MAX] = {
1.24 kristaps 62: { "Times-Roman", {
63: { 250 },
64: { 333 },
65: { 408 },
66: { 500 },
67: { 500 },
68: { 833 },
69: { 778 },
70: { 333 },
71: { 333 },
72: { 333 },
73: { 500 },
74: { 564 },
75: { 250 },
76: { 333 },
77: { 250 },
78: { 278 },
79: { 500 },
80: { 500 },
81: { 500 },
82: { 500 },
83: { 500 },
84: { 500 },
85: { 500 },
86: { 500 },
87: { 500 },
88: { 500 },
89: { 278 },
90: { 278 },
91: { 564 },
92: { 564 },
93: { 564 },
94: { 444 },
95: { 921 },
96: { 722 },
97: { 667 },
98: { 667 },
99: { 722 },
100: { 611 },
101: { 556 },
102: { 722 },
103: { 722 },
104: { 333 },
105: { 389 },
106: { 722 },
107: { 611 },
108: { 889 },
109: { 722 },
110: { 722 },
111: { 556 },
112: { 722 },
113: { 667 },
114: { 556 },
115: { 611 },
116: { 722 },
117: { 722 },
118: { 944 },
119: { 722 },
120: { 722 },
121: { 611 },
122: { 333 },
123: { 278 },
124: { 333 },
125: { 469 },
126: { 500 },
127: { 333 },
128: { 444 },
129: { 500 },
130: { 444 },
131: { 500},
132: { 444},
133: { 333},
134: { 500},
135: { 500},
136: { 278},
137: { 278},
138: { 500},
139: { 278},
140: { 778},
141: { 500},
142: { 500},
143: { 500},
144: { 500},
145: { 333},
146: { 389},
147: { 278},
148: { 500},
149: { 500},
150: { 722},
151: { 500},
152: { 500},
153: { 444},
154: { 480},
155: { 200},
156: { 480},
157: { 541},
158: } },
159: { "Times-Bold", {
160: { 250 },
161: { 333 },
162: { 555 },
163: { 500 },
164: { 500 },
165: { 1000 },
166: { 833 },
167: { 333 },
168: { 333 },
169: { 333 },
170: { 500 },
171: { 570 },
172: { 250 },
173: { 333 },
174: { 250 },
175: { 278 },
176: { 500 },
177: { 500 },
178: { 500 },
179: { 500 },
180: { 500 },
181: { 500 },
182: { 500 },
183: { 500 },
184: { 500 },
185: { 500 },
186: { 333 },
187: { 333 },
188: { 570 },
189: { 570 },
190: { 570 },
191: { 500 },
192: { 930 },
193: { 722 },
194: { 667 },
195: { 722 },
196: { 722 },
197: { 667 },
198: { 611 },
199: { 778 },
200: { 778 },
201: { 389 },
202: { 500 },
203: { 778 },
204: { 667 },
205: { 944 },
206: { 722 },
207: { 778 },
208: { 611 },
209: { 778 },
210: { 722 },
211: { 556 },
212: { 667 },
213: { 722 },
214: { 722 },
215: { 1000 },
216: { 722 },
217: { 722 },
218: { 667 },
219: { 333 },
220: { 278 },
221: { 333 },
222: { 581 },
223: { 500 },
224: { 333 },
225: { 500 },
226: { 556 },
227: { 444 },
1.22 kristaps 228: { 556 },
1.24 kristaps 229: { 444 },
230: { 333 },
1.22 kristaps 231: { 500 },
1.24 kristaps 232: { 556 },
1.22 kristaps 233: { 278 },
1.24 kristaps 234: { 333 },
235: { 556 },
1.22 kristaps 236: { 278 },
1.24 kristaps 237: { 833 },
1.22 kristaps 238: { 556 },
1.24 kristaps 239: { 500 },
1.22 kristaps 240: { 556 },
241: { 556 },
242: { 444 },
1.24 kristaps 243: { 389 },
244: { 333 },
1.22 kristaps 245: { 556 },
246: { 500 },
1.24 kristaps 247: { 722 },
248: { 500 },
1.22 kristaps 249: { 500 },
1.24 kristaps 250: { 444 },
251: { 394 },
252: { 220 },
253: { 394 },
254: { 520 },
1.13 kristaps 255: } },
1.24 kristaps 256: { "Times-Italic", {
257: { 250 },
258: { 333 },
259: { 420 },
260: { 500 },
261: { 500 },
262: { 833 },
263: { 778 },
264: { 333 },
265: { 333 },
266: { 333 },
267: { 500 },
268: { 675 },
269: { 250 },
270: { 333 },
271: { 250 },
272: { 278 },
273: { 500 },
274: { 500 },
275: { 500 },
276: { 500 },
277: { 500 },
278: { 500 },
279: { 500 },
280: { 500 },
281: { 500 },
282: { 500 },
283: { 333 },
284: { 333 },
285: { 675 },
286: { 675 },
287: { 675 },
288: { 500 },
289: { 920 },
290: { 611 },
291: { 611 },
292: { 667 },
293: { 722 },
294: { 611 },
295: { 611 },
296: { 722 },
297: { 722 },
298: { 333 },
299: { 444 },
300: { 667 },
301: { 556 },
302: { 833 },
303: { 667 },
304: { 722 },
305: { 611 },
306: { 722 },
307: { 611 },
308: { 500 },
309: { 556 },
310: { 722 },
311: { 611 },
312: { 833 },
313: { 611 },
314: { 556 },
315: { 556 },
316: { 389 },
317: { 278 },
318: { 389 },
319: { 422 },
320: { 500 },
321: { 333 },
322: { 500 },
323: { 500 },
324: { 444 },
1.22 kristaps 325: { 500 },
1.24 kristaps 326: { 444 },
327: { 278 },
1.22 kristaps 328: { 500 },
329: { 500 },
330: { 278 },
1.24 kristaps 331: { 278 },
332: { 444 },
333: { 278 },
334: { 722 },
335: { 500 },
336: { 500 },
337: { 500 },
1.22 kristaps 338: { 500 },
1.24 kristaps 339: { 389 },
340: { 389 },
1.22 kristaps 341: { 278 },
342: { 500 },
1.24 kristaps 343: { 444 },
344: { 667 },
345: { 444 },
346: { 444 },
347: { 389 },
348: { 400 },
1.22 kristaps 349: { 275 },
1.24 kristaps 350: { 400 },
351: { 541 },
1.13 kristaps 352: } },
353: };
354:
1.15 kristaps 355: /* These work the buffer used by the header and footer. */
1.4 kristaps 356: #define PS_BUFSLOP 128
357:
1.40 joerg 358: static void
359: ps_growbuf(struct termp *p, size_t sz)
360: {
361: if (p->engine.ps.psmargcur + sz <= p->engine.ps.psmargsz)
362: return;
363:
364: if (sz < PS_BUFSLOP)
365: sz = PS_BUFSLOP;
1.41 kristaps 366:
1.40 joerg 367: p->engine.ps.psmargsz += sz;
368:
1.41 kristaps 369: p->engine.ps.psmarg = realloc
370: (p->engine.ps.psmarg,
371: p->engine.ps.psmargsz);
372:
373: if (NULL == p->engine.ps.psmarg) {
1.40 joerg 374: perror(NULL);
1.44 kristaps 375: exit((int)MANDOCLEVEL_SYSERR);
1.41 kristaps 376: }
1.40 joerg 377: }
1.9 kristaps 378:
1.20 kristaps 379: static double ps_hspan(const struct termp *,
1.19 kristaps 380: const struct roffsu *);
381: static size_t ps_width(const struct termp *, char);
382: static void ps_advance(struct termp *, size_t);
1.2 kristaps 383: static void ps_begin(struct termp *);
1.37 kristaps 384: static void ps_closepage(struct termp *);
1.2 kristaps 385: static void ps_end(struct termp *);
386: static void ps_endline(struct termp *);
1.9 kristaps 387: static void ps_fclose(struct termp *);
1.19 kristaps 388: static void ps_letter(struct termp *, char);
1.9 kristaps 389: static void ps_pclose(struct termp *);
1.13 kristaps 390: static void ps_pletter(struct termp *, int);
1.4 kristaps 391: static void ps_printf(struct termp *, const char *, ...);
392: static void ps_putchar(struct termp *, char);
1.9 kristaps 393: static void ps_setfont(struct termp *, enum termfont);
1.37 kristaps 394: static struct termp *pspdf_alloc(char *);
1.39 kristaps 395: static void pdf_obj(struct termp *, size_t);
1.37 kristaps 396:
397:
398: void *
399: pdf_alloc(char *outopts)
400: {
401: struct termp *p;
402:
1.38 kristaps 403: if (NULL != (p = pspdf_alloc(outopts)))
404: p->type = TERMTYPE_PDF;
1.37 kristaps 405:
406: return(p);
407: }
1.2 kristaps 408:
409:
1.1 kristaps 410: void *
1.17 kristaps 411: ps_alloc(char *outopts)
1.1 kristaps 412: {
413: struct termp *p;
1.37 kristaps 414:
1.38 kristaps 415: if (NULL != (p = pspdf_alloc(outopts)))
416: p->type = TERMTYPE_PS;
1.37 kristaps 417:
418: return(p);
419: }
420:
421:
422: static struct termp *
423: pspdf_alloc(char *outopts)
424: {
425: struct termp *p;
1.28 kristaps 426: size_t pagex, pagey, marginx, marginy, lineheight;
1.17 kristaps 427: const char *toks[2];
1.25 kristaps 428: const char *pp;
1.17 kristaps 429: char *v;
1.1 kristaps 430:
1.46 kristaps 431: p = term_alloc(TERMENC_ASCII);
1.1 kristaps 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)) {
1.44 kristaps 585: /* LINTED */
1.4 kristaps 586: putchar(c);
1.37 kristaps 587: p->engine.ps.pdfbytes++;
1.4 kristaps 588: return;
589: }
590:
1.40 joerg 591: ps_growbuf(p, 2);
1.4 kristaps 592:
593: pos = (int)p->engine.ps.psmargcur++;
1.5 kristaps 594: p->engine.ps.psmarg[pos++] = c;
1.4 kristaps 595: p->engine.ps.psmarg[pos] = '\0';
1.2 kristaps 596: }
597:
598:
1.37 kristaps 599: static void
1.39 kristaps 600: pdf_obj(struct termp *p, size_t obj)
601: {
602:
603: assert(obj > 0);
604:
605: if ((obj - 1) >= p->engine.ps.pdfobjsz) {
606: p->engine.ps.pdfobjsz = obj + 128;
607: p->engine.ps.pdfobjs = realloc
608: (p->engine.ps.pdfobjs,
609: p->engine.ps.pdfobjsz * sizeof(size_t));
610: if (NULL == p->engine.ps.pdfobjs) {
611: perror(NULL);
1.44 kristaps 612: exit((int)MANDOCLEVEL_SYSERR);
1.39 kristaps 613: }
614: }
615:
616: p->engine.ps.pdfobjs[(int)obj - 1] = p->engine.ps.pdfbytes;
617: ps_printf(p, "%zu 0 obj\n", obj);
618: }
619:
620:
621: static void
1.37 kristaps 622: ps_closepage(struct termp *p)
623: {
624: int i;
1.38 kristaps 625: size_t len, base;
626:
627: /*
628: * Close out a page that we've already flushed to output. In
629: * PostScript, we simply note that the page must be showed. In
630: * PDF, we must now create the Length, Resource, and Page node
631: * for the page contents.
632: */
1.37 kristaps 633:
634: assert(p->engine.ps.psmarg && p->engine.ps.psmarg[0]);
635: ps_printf(p, "%s", p->engine.ps.psmarg);
636:
1.38 kristaps 637: if (TERMTYPE_PS != p->type) {
1.37 kristaps 638: ps_printf(p, "ET\n");
1.38 kristaps 639:
1.37 kristaps 640: len = p->engine.ps.pdfbytes - p->engine.ps.pdflastpg;
1.38 kristaps 641: base = p->engine.ps.pages * 4 + p->engine.ps.pdfbody;
642:
643: ps_printf(p, "endstream\nendobj\n");
644:
645: /* Length of content. */
1.39 kristaps 646: pdf_obj(p, base + 1);
1.38 kristaps 647: ps_printf(p, "%zu\nendobj\n", len);
648:
649: /* Resource for content. */
1.39 kristaps 650: pdf_obj(p, base + 2);
1.38 kristaps 651: ps_printf(p, "<<\n/ProcSet [/PDF /Text]\n");
1.37 kristaps 652: ps_printf(p, "/Font <<\n");
1.39 kristaps 653: for (i = 0; i < (int)TERMFONT__MAX; i++)
1.37 kristaps 654: ps_printf(p, "/F%d %d 0 R\n", i, 3 + i);
1.38 kristaps 655: ps_printf(p, ">>\n>>\n");
656:
657: /* Page node. */
1.39 kristaps 658: pdf_obj(p, base + 3);
659: ps_printf(p, "<<\n");
1.37 kristaps 660: ps_printf(p, "/Type /Page\n");
661: ps_printf(p, "/Parent 2 0 R\n");
1.38 kristaps 662: ps_printf(p, "/Resources %zu 0 R\n", base + 2);
663: ps_printf(p, "/Contents %zu 0 R\n", base);
664: ps_printf(p, ">>\nendobj\n");
665: } else
666: ps_printf(p, "showpage\n");
1.37 kristaps 667:
668: p->engine.ps.pages++;
669: p->engine.ps.psrow = p->engine.ps.top;
670: assert( ! (PS_NEWPAGE & p->engine.ps.flags));
671: p->engine.ps.flags |= PS_NEWPAGE;
672: }
673:
674:
1.3 kristaps 675: /* ARGSUSED */
1.2 kristaps 676: static void
677: ps_end(struct termp *p)
678: {
1.38 kristaps 679: size_t i, xref, base;
1.2 kristaps 680:
1.4 kristaps 681: /*
682: * At the end of the file, do one last showpage. This is the
683: * same behaviour as groff(1) and works for multiple pages as
684: * well as just one.
685: */
686:
1.30 kristaps 687: if ( ! (PS_NEWPAGE & p->engine.ps.flags)) {
688: assert(0 == p->engine.ps.flags);
689: assert('\0' == p->engine.ps.last);
1.37 kristaps 690: ps_closepage(p);
1.30 kristaps 691: }
1.16 kristaps 692:
1.37 kristaps 693: if (TERMTYPE_PS == p->type) {
694: ps_printf(p, "%%%%Trailer\n");
695: ps_printf(p, "%%%%Pages: %zu\n", p->engine.ps.pages);
696: ps_printf(p, "%%%%EOF\n");
697: return;
698: }
699:
1.39 kristaps 700: pdf_obj(p, 2);
701: ps_printf(p, "<<\n/Type /Pages\n");
1.37 kristaps 702: ps_printf(p, "/MediaBox [0 0 %zu %zu]\n",
703: (size_t)AFM2PNT(p, p->engine.ps.width),
704: (size_t)AFM2PNT(p, p->engine.ps.height));
705:
706: ps_printf(p, "/Count %zu\n", p->engine.ps.pages);
707: ps_printf(p, "/Kids [");
708:
709: for (i = 0; i < p->engine.ps.pages; i++)
1.38 kristaps 710: ps_printf(p, " %zu 0 R", i * 4 +
711: p->engine.ps.pdfbody + 3);
712:
713: base = (p->engine.ps.pages - 1) * 4 +
714: p->engine.ps.pdfbody + 4;
715:
716: ps_printf(p, "]\n>>\nendobj\n");
1.39 kristaps 717: pdf_obj(p, base);
1.37 kristaps 718: ps_printf(p, "<<\n");
719: ps_printf(p, "/Type /Catalog\n");
720: ps_printf(p, "/Pages 2 0 R\n");
721: ps_printf(p, ">>\n");
722: xref = p->engine.ps.pdfbytes;
723: ps_printf(p, "xref\n");
1.38 kristaps 724: ps_printf(p, "0 %zu\n", base + 1);
1.39 kristaps 725: ps_printf(p, "0000000000 65535 f \n");
726:
727: for (i = 0; i < base; i++)
728: ps_printf(p, "%.10zu 00000 n \n",
729: p->engine.ps.pdfobjs[(int)i]);
730:
1.37 kristaps 731: ps_printf(p, "trailer\n");
732: ps_printf(p, "<<\n");
1.38 kristaps 733: ps_printf(p, "/Size %zu\n", base + 1);
734: ps_printf(p, "/Root %zu 0 R\n", base);
1.37 kristaps 735: ps_printf(p, "/Info 1 0 R\n");
736: ps_printf(p, ">>\n");
737: ps_printf(p, "startxref\n");
738: ps_printf(p, "%zu\n", xref);
739: ps_printf(p, "%%%%EOF\n");
1.2 kristaps 740: }
741:
742:
743: static void
744: ps_begin(struct termp *p)
745: {
1.13 kristaps 746: time_t t;
1.16 kristaps 747: int i;
1.2 kristaps 748:
1.9 kristaps 749: /*
750: * Print margins into margin buffer. Nothing gets output to the
751: * screen yet, so we don't need to initialise the primary state.
1.2 kristaps 752: */
753:
1.4 kristaps 754: if (p->engine.ps.psmarg) {
755: assert(p->engine.ps.psmargsz);
756: p->engine.ps.psmarg[0] = '\0';
757: }
758:
1.39 kristaps 759: /*p->engine.ps.pdfbytes = 0;*/
1.4 kristaps 760: p->engine.ps.psmargcur = 0;
1.29 kristaps 761: p->engine.ps.flags = PS_MARGINS;
1.16 kristaps 762: p->engine.ps.pscol = p->engine.ps.left;
763: p->engine.ps.psrow = p->engine.ps.header;
1.4 kristaps 764:
1.9 kristaps 765: ps_setfont(p, TERMFONT_NONE);
1.4 kristaps 766:
767: (*p->headf)(p, p->argf);
768: (*p->endline)(p);
769:
1.16 kristaps 770: p->engine.ps.pscol = p->engine.ps.left;
771: p->engine.ps.psrow = p->engine.ps.footer;
1.4 kristaps 772:
773: (*p->footf)(p, p->argf);
774: (*p->endline)(p);
775:
1.29 kristaps 776: p->engine.ps.flags &= ~PS_MARGINS;
1.9 kristaps 777:
1.29 kristaps 778: assert(0 == p->engine.ps.flags);
1.9 kristaps 779: assert(p->engine.ps.psmarg);
780: assert('\0' != p->engine.ps.psmarg[0]);
781:
782: /*
783: * Print header and initialise page state. Following this,
784: * stuff gets printed to the screen, so make sure we're sane.
785: */
1.4 kristaps 786:
1.13 kristaps 787: t = time(NULL);
788:
1.37 kristaps 789: if (TERMTYPE_PS == p->type) {
790: ps_printf(p, "%%!PS-Adobe-3.0\n");
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, ">>\n");
811: ps_printf(p, "endobj\n");
812:
813: for (i = 0; i < (int)TERMFONT__MAX; i++) {
1.39 kristaps 814: pdf_obj(p, (size_t)i + 3);
1.37 kristaps 815: ps_printf(p, "<<\n");
816: ps_printf(p, "/Type /Font\n");
817: ps_printf(p, "/Subtype /Type1\n");
818: ps_printf(p, "/Name /F%zu\n", i);
819: ps_printf(p, "/BaseFont /%s\n", fonts[i].name);
820: ps_printf(p, ">>\n");
821: }
822: }
1.16 kristaps 823:
1.37 kristaps 824: p->engine.ps.pdfbody = (size_t)TERMFONT__MAX + 3;
1.16 kristaps 825: p->engine.ps.pscol = p->engine.ps.left;
826: p->engine.ps.psrow = p->engine.ps.top;
1.29 kristaps 827: p->engine.ps.flags |= PS_NEWPAGE;
1.33 kristaps 828: ps_setfont(p, TERMFONT_NONE);
1.2 kristaps 829: }
830:
831:
832: static void
1.13 kristaps 833: ps_pletter(struct termp *p, int c)
1.2 kristaps 834: {
1.14 kristaps 835: int f;
1.32 kristaps 836:
1.9 kristaps 837: /*
1.32 kristaps 838: * If we haven't opened a page context, then output that we're
839: * in a new page and make sure the font is correctly set.
1.9 kristaps 840: */
841:
1.32 kristaps 842: if (PS_NEWPAGE & p->engine.ps.flags) {
1.37 kristaps 843: if (TERMTYPE_PS == p->type) {
844: ps_printf(p, "%%%%Page: %zu %zu\n",
845: p->engine.ps.pages + 1,
846: p->engine.ps.pages + 1);
847: ps_printf(p, "/%s %zu selectfont\n",
848: fonts[(int)p->engine.ps.lastf].name,
849: p->engine.ps.scale);
850: } else {
1.39 kristaps 851: pdf_obj(p, p->engine.ps.pdfbody +
1.38 kristaps 852: p->engine.ps.pages * 4);
1.37 kristaps 853: ps_printf(p, "<<\n");
854: ps_printf(p, "/Length %zu 0 R\n",
1.38 kristaps 855: p->engine.ps.pdfbody + 1 +
856: p->engine.ps.pages * 4);
1.37 kristaps 857: ps_printf(p, ">>\nstream\n");
858: }
859: p->engine.ps.pdflastpg = p->engine.ps.pdfbytes;
1.32 kristaps 860: p->engine.ps.flags &= ~PS_NEWPAGE;
861: }
862:
863: /*
864: * If we're not in a PostScript "word" context, then open one
865: * now at the current cursor.
866: */
1.30 kristaps 867:
1.29 kristaps 868: if ( ! (PS_INLINE & p->engine.ps.flags)) {
1.37 kristaps 869: if (TERMTYPE_PS != p->type) {
870: ps_printf(p, "BT\n/F%d %zu Tf\n",
871: (int)p->engine.ps.lastf,
872: p->engine.ps.scale);
873: ps_printf(p, "%.3f %.3f Td\n(",
874: AFM2PNT(p, p->engine.ps.pscol),
875: AFM2PNT(p, p->engine.ps.psrow));
876: } else
877: ps_printf(p, "%.3f %.3f moveto\n(",
878: AFM2PNT(p, p->engine.ps.pscol),
879: AFM2PNT(p, p->engine.ps.psrow));
1.29 kristaps 880: p->engine.ps.flags |= PS_INLINE;
1.2 kristaps 881: }
882:
1.29 kristaps 883: assert( ! (PS_NEWPAGE & p->engine.ps.flags));
884:
1.2 kristaps 885: /*
886: * We need to escape these characters as per the PostScript
887: * specification. We would also escape non-graphable characters
888: * (like tabs), but none of them would get to this point and
889: * it's superfluous to abort() on them.
890: */
891:
892: switch (c) {
893: case ('('):
894: /* FALLTHROUGH */
895: case (')'):
896: /* FALLTHROUGH */
897: case ('\\'):
1.4 kristaps 898: ps_putchar(p, '\\');
1.2 kristaps 899: break;
900: default:
901: break;
902: }
903:
904: /* Write the character and adjust where we are on the page. */
1.9 kristaps 905:
1.14 kristaps 906: f = (int)p->engine.ps.lastf;
1.13 kristaps 907:
1.45 schwarze 908: if (c <= 32 || (c - 32 >= MAXCHAR)) {
1.13 kristaps 909: ps_putchar(p, ' ');
1.36 kristaps 910: p->engine.ps.pscol += (size_t)fonts[f].gly[0].wx;
1.13 kristaps 911: return;
912: }
913:
1.25 kristaps 914: ps_putchar(p, (char)c);
1.14 kristaps 915: c -= 32;
1.36 kristaps 916: p->engine.ps.pscol += (size_t)fonts[f].gly[c].wx;
1.2 kristaps 917: }
918:
919:
920: static void
1.9 kristaps 921: ps_pclose(struct termp *p)
922: {
923:
924: /*
925: * Spit out that we're exiting a word context (this is a
926: * "partial close" because we don't check the last-char buffer
927: * or anything).
928: */
929:
1.29 kristaps 930: if ( ! (PS_INLINE & p->engine.ps.flags))
1.9 kristaps 931: return;
932:
1.37 kristaps 933: if (TERMTYPE_PS != p->type) {
934: ps_printf(p, ") Tj\nET\n");
935: } else
936: ps_printf(p, ") show\n");
937:
1.29 kristaps 938: p->engine.ps.flags &= ~PS_INLINE;
1.9 kristaps 939: }
940:
941:
942: static void
943: ps_fclose(struct termp *p)
944: {
945:
946: /*
947: * Strong closure: if we have a last-char, spit it out after
948: * checking that we're in the right font mode. This will of
949: * course open a new scope, if applicable.
950: *
951: * Following this, close out any scope that's open.
952: */
953:
954: if ('\0' != p->engine.ps.last) {
955: if (p->engine.ps.lastf != TERMFONT_NONE) {
956: ps_pclose(p);
957: ps_setfont(p, TERMFONT_NONE);
958: }
959: ps_pletter(p, p->engine.ps.last);
960: p->engine.ps.last = '\0';
961: }
962:
1.29 kristaps 963: if ( ! (PS_INLINE & p->engine.ps.flags))
1.9 kristaps 964: return;
965:
966: ps_pclose(p);
967: }
968:
969:
970: static void
1.8 kristaps 971: ps_letter(struct termp *p, char c)
972: {
973: char cc;
1.9 kristaps 974:
975: /*
976: * State machine dictates whether to buffer the last character
977: * or not. Basically, encoded words are detected by checking if
978: * we're an "8" and switching on the buffer. Then we put "8" in
979: * our buffer, and on the next charater, flush both character
980: * and buffer. Thus, "regular" words are detected by having a
981: * regular character and a regular buffer character.
982: */
983:
1.8 kristaps 984: if ('\0' == p->engine.ps.last) {
985: assert(8 != c);
986: p->engine.ps.last = c;
987: return;
988: } else if (8 == p->engine.ps.last) {
989: assert(8 != c);
1.9 kristaps 990: p->engine.ps.last = '\0';
1.8 kristaps 991: } else if (8 == c) {
992: assert(8 != p->engine.ps.last);
1.9 kristaps 993: if ('_' == p->engine.ps.last) {
994: if (p->engine.ps.lastf != TERMFONT_UNDER) {
995: ps_pclose(p);
996: ps_setfont(p, TERMFONT_UNDER);
997: }
998: } else if (p->engine.ps.lastf != TERMFONT_BOLD) {
999: ps_pclose(p);
1000: ps_setfont(p, TERMFONT_BOLD);
1001: }
1.8 kristaps 1002: p->engine.ps.last = c;
1003: return;
1004: } else {
1.9 kristaps 1005: if (p->engine.ps.lastf != TERMFONT_NONE) {
1006: ps_pclose(p);
1007: ps_setfont(p, TERMFONT_NONE);
1008: }
1.8 kristaps 1009: cc = p->engine.ps.last;
1010: p->engine.ps.last = c;
1011: c = cc;
1012: }
1013:
1.9 kristaps 1014: ps_pletter(p, c);
1.8 kristaps 1015: }
1016:
1017:
1018: static void
1.2 kristaps 1019: ps_advance(struct termp *p, size_t len)
1020: {
1021:
1.9 kristaps 1022: /*
1023: * Advance some spaces. This can probably be made smarter,
1024: * i.e., to have multiple space-separated words in the same
1025: * scope, but this is easier: just close out the current scope
1026: * and readjust our column settings.
1027: */
1.8 kristaps 1028:
1.9 kristaps 1029: ps_fclose(p);
1.14 kristaps 1030: p->engine.ps.pscol += len;
1.2 kristaps 1031: }
1032:
1033:
1034: static void
1035: ps_endline(struct termp *p)
1036: {
1.8 kristaps 1037:
1.9 kristaps 1038: /* Close out any scopes we have open: we're at eoln. */
1039:
1040: ps_fclose(p);
1.2 kristaps 1041:
1.9 kristaps 1042: /*
1043: * If we're in the margin, don't try to recalculate our current
1044: * row. XXX: if the column tries to be fancy with multiple
1045: * lines, we'll do nasty stuff.
1046: */
1.2 kristaps 1047:
1.29 kristaps 1048: if (PS_MARGINS & p->engine.ps.flags)
1049: return;
1050:
1051: /* Left-justify. */
1052:
1053: p->engine.ps.pscol = p->engine.ps.left;
1054:
1055: /* If we haven't printed anything, return. */
1056:
1057: if (PS_NEWPAGE & p->engine.ps.flags)
1.2 kristaps 1058: return;
1059:
1.9 kristaps 1060: /*
1061: * Put us down a line. If we're at the page bottom, spit out a
1062: * showpage and restart our row.
1063: */
1064:
1.16 kristaps 1065: if (p->engine.ps.psrow >= p->engine.ps.lineheight +
1066: p->engine.ps.bottom) {
1067: p->engine.ps.psrow -= p->engine.ps.lineheight;
1.2 kristaps 1068: return;
1069: }
1070:
1.37 kristaps 1071: ps_closepage(p);
1.1 kristaps 1072: }
1.9 kristaps 1073:
1074:
1075: static void
1076: ps_setfont(struct termp *p, enum termfont f)
1077: {
1078:
1.16 kristaps 1079: assert(f < TERMFONT__MAX);
1.32 kristaps 1080: p->engine.ps.lastf = f;
1081:
1082: /*
1083: * If we're still at the top of the page, let the font-setting
1084: * be delayed until we actually have stuff to print.
1085: */
1086:
1087: if (PS_NEWPAGE & p->engine.ps.flags)
1088: return;
1089:
1.37 kristaps 1090: if (TERMTYPE_PS == p->type)
1091: ps_printf(p, "/%s %zu selectfont\n",
1092: fonts[(int)f].name,
1093: p->engine.ps.scale);
1094: else
1095: ps_printf(p, "/F%d %zu Tf\n",
1096: (int)f,
1097: p->engine.ps.scale);
1.9 kristaps 1098: }
1099:
1.11 kristaps 1100:
1.12 kristaps 1101: /* ARGSUSED */
1.11 kristaps 1102: static size_t
1103: ps_width(const struct termp *p, char c)
1104: {
1105:
1.14 kristaps 1106: if (c <= 32 || c - 32 >= MAXCHAR)
1.36 kristaps 1107: return((size_t)fonts[(int)TERMFONT_NONE].gly[0].wx);
1.14 kristaps 1108:
1109: c -= 32;
1.36 kristaps 1110: return((size_t)fonts[(int)TERMFONT_NONE].gly[(int)c].wx);
1.11 kristaps 1111: }
1.19 kristaps 1112:
1113:
1.20 kristaps 1114: static double
1.19 kristaps 1115: ps_hspan(const struct termp *p, const struct roffsu *su)
1116: {
1117: double r;
1118:
1119: /*
1120: * All of these measurements are derived by converting from the
1.21 kristaps 1121: * native measurement to AFM units.
1.19 kristaps 1122: */
1123:
1124: switch (su->unit) {
1125: case (SCALE_CM):
1.21 kristaps 1126: r = PNT2AFM(p, su->scale * 28.34);
1.19 kristaps 1127: break;
1128: case (SCALE_IN):
1.21 kristaps 1129: r = PNT2AFM(p, su->scale * 72);
1.19 kristaps 1130: break;
1131: case (SCALE_PC):
1.21 kristaps 1132: r = PNT2AFM(p, su->scale * 12);
1.19 kristaps 1133: break;
1134: case (SCALE_PT):
1.21 kristaps 1135: r = PNT2AFM(p, su->scale * 100);
1.19 kristaps 1136: break;
1137: case (SCALE_EM):
1.36 kristaps 1138: r = su->scale *
1.19 kristaps 1139: fonts[(int)TERMFONT_NONE].gly[109 - 32].wx;
1140: break;
1141: case (SCALE_MM):
1.21 kristaps 1142: r = PNT2AFM(p, su->scale * 2.834);
1.19 kristaps 1143: break;
1144: case (SCALE_EN):
1.36 kristaps 1145: r = su->scale *
1.19 kristaps 1146: fonts[(int)TERMFONT_NONE].gly[110 - 32].wx;
1147: break;
1148: case (SCALE_VS):
1149: r = su->scale * p->engine.ps.lineheight;
1150: break;
1151: default:
1152: r = su->scale;
1153: break;
1154: }
1155:
1.20 kristaps 1156: return(r);
1.19 kristaps 1157: }
1158:
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