Annotation of mandoc/term_ps.c, Revision 1.40
1.40 ! joerg 1: /* $Id: term_ps.c,v 1.39 2010/07/25 22:15:07 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:
1.4 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;
! 365: p->engine.ps.psmargsz += sz;
! 366:
! 367: p->engine.ps.psmarg = realloc(p->engine.ps.psmarg,
! 368: p->engine.ps.psmargsz);
! 369: if (NULL == p->engine.ps.psmarg)
! 370: perror(NULL);
! 371: exit(EXIT_FAILURE);
! 372: }
1.9 kristaps 373:
1.20 kristaps 374: static double ps_hspan(const struct termp *,
1.19 kristaps 375: const struct roffsu *);
376: static size_t ps_width(const struct termp *, char);
377: static void ps_advance(struct termp *, size_t);
1.2 kristaps 378: static void ps_begin(struct termp *);
1.37 kristaps 379: static void ps_closepage(struct termp *);
1.2 kristaps 380: static void ps_end(struct termp *);
381: static void ps_endline(struct termp *);
1.9 kristaps 382: static void ps_fclose(struct termp *);
1.19 kristaps 383: static void ps_letter(struct termp *, char);
1.9 kristaps 384: static void ps_pclose(struct termp *);
1.13 kristaps 385: static void ps_pletter(struct termp *, int);
1.4 kristaps 386: static void ps_printf(struct termp *, const char *, ...);
387: static void ps_putchar(struct termp *, char);
1.9 kristaps 388: static void ps_setfont(struct termp *, enum termfont);
1.37 kristaps 389: static struct termp *pspdf_alloc(char *);
1.39 kristaps 390: static void pdf_obj(struct termp *, size_t);
1.37 kristaps 391:
392:
393: void *
394: pdf_alloc(char *outopts)
395: {
396: struct termp *p;
397:
1.38 kristaps 398: if (NULL != (p = pspdf_alloc(outopts)))
399: p->type = TERMTYPE_PDF;
1.37 kristaps 400:
401: return(p);
402: }
1.2 kristaps 403:
404:
1.1 kristaps 405: void *
1.17 kristaps 406: ps_alloc(char *outopts)
1.1 kristaps 407: {
408: struct termp *p;
1.37 kristaps 409:
1.38 kristaps 410: if (NULL != (p = pspdf_alloc(outopts)))
411: p->type = TERMTYPE_PS;
1.37 kristaps 412:
413: return(p);
414: }
415:
416:
417: static struct termp *
418: pspdf_alloc(char *outopts)
419: {
420: struct termp *p;
1.28 kristaps 421: size_t pagex, pagey, marginx, marginy, lineheight;
1.17 kristaps 422: const char *toks[2];
1.25 kristaps 423: const char *pp;
1.17 kristaps 424: char *v;
1.1 kristaps 425:
426: if (NULL == (p = term_alloc(TERMENC_ASCII)))
427: return(NULL);
428:
1.19 kristaps 429: p->advance = ps_advance;
1.2 kristaps 430: p->begin = ps_begin;
431: p->end = ps_end;
432: p->endline = ps_endline;
1.19 kristaps 433: p->hspan = ps_hspan;
434: p->letter = ps_letter;
1.11 kristaps 435: p->width = ps_width;
1.21 kristaps 436:
1.17 kristaps 437: toks[0] = "paper";
438: toks[1] = NULL;
439:
1.25 kristaps 440: pp = NULL;
1.19 kristaps 441:
1.17 kristaps 442: while (outopts && *outopts)
443: switch (getsubopt(&outopts, UNCONST(toks), &v)) {
444: case (0):
1.25 kristaps 445: pp = v;
1.17 kristaps 446: break;
447: default:
448: break;
449: }
1.16 kristaps 450:
1.25 kristaps 451: /* Default to US letter (millimetres). */
452:
1.31 kristaps 453: pagex = 216;
454: pagey = 279;
1.25 kristaps 455:
456: /*
457: * The ISO-269 paper sizes can be calculated automatically, but
458: * it would require bringing in -lm for pow() and I'd rather not
459: * do that. So just do it the easy way for now. Since this
460: * only happens once, I'm not terribly concerned.
461: */
462:
463: if (pp && strcasecmp(pp, "letter")) {
464: if (0 == strcasecmp(pp, "a3")) {
465: pagex = 297;
466: pagey = 420;
467: } else if (0 == strcasecmp(pp, "a4")) {
468: pagex = 210;
469: pagey = 297;
470: } else if (0 == strcasecmp(pp, "a5")) {
471: pagex = 148;
472: pagey = 210;
473: } else if (0 == strcasecmp(pp, "legal")) {
474: pagex = 216;
475: pagey = 356;
476: } else if (2 != sscanf(pp, "%zux%zu", &pagex, &pagey))
477: fprintf(stderr, "%s: Unknown paper\n", pp);
1.27 kristaps 478: } else if (NULL == pp)
479: pp = "letter";
480:
481: /*
482: * This MUST be defined before any PNT2AFM or AFM2PNT
483: * calculations occur.
484: */
485:
486: p->engine.ps.scale = 11;
487:
1.25 kristaps 488: /* Remember millimetres -> AFM units. */
489:
490: pagex = PNT2AFM(p, ((double)pagex * 2.834));
491: pagey = PNT2AFM(p, ((double)pagey * 2.834));
492:
1.28 kristaps 493: /* Margins are 1/9 the page x and y. */
1.27 kristaps 494:
1.29 kristaps 495: marginx = /* LINTED */
496: (size_t)((double)pagex / 9.0);
497: marginy = /* LINTED */
498: (size_t)((double)pagey / 9.0);
1.27 kristaps 499:
1.31 kristaps 500: /* Line-height is 1.4em. */
501:
502: lineheight = PNT2AFM(p, ((double)p->engine.ps.scale * 1.4));
1.16 kristaps 503:
504: p->engine.ps.width = pagex;
505: p->engine.ps.height = pagey;
1.28 kristaps 506: p->engine.ps.header = pagey - (marginy / 2) - (lineheight / 2);
507: p->engine.ps.top = pagey - marginy;
508: p->engine.ps.footer = (marginy / 2) - (lineheight / 2);
509: p->engine.ps.bottom = marginy;
510: p->engine.ps.left = marginx;
1.18 kristaps 511: p->engine.ps.lineheight = lineheight;
1.16 kristaps 512:
1.28 kristaps 513: p->defrmargin = pagex - (marginx * 2);
1.1 kristaps 514: return(p);
515: }
516:
517:
518: void
1.37 kristaps 519: pspdf_free(void *arg)
1.1 kristaps 520: {
1.4 kristaps 521: struct termp *p;
522:
523: p = (struct termp *)arg;
524:
525: if (p->engine.ps.psmarg)
526: free(p->engine.ps.psmarg);
1.39 kristaps 527: if (p->engine.ps.pdfobjs)
528: free(p->engine.ps.pdfobjs);
1.4 kristaps 529:
530: term_free(p);
531: }
532:
533:
534: static void
535: ps_printf(struct termp *p, const char *fmt, ...)
536: {
537: va_list ap;
1.37 kristaps 538: int pos, len;
1.4 kristaps 539:
540: va_start(ap, fmt);
541:
542: /*
543: * If we're running in regular mode, then pipe directly into
544: * vprintf(). If we're processing margins, then push the data
545: * into our growable margin buffer.
546: */
1.1 kristaps 547:
1.29 kristaps 548: if ( ! (PS_MARGINS & p->engine.ps.flags)) {
1.37 kristaps 549: len = vprintf(fmt, ap);
1.4 kristaps 550: va_end(ap);
1.37 kristaps 551: p->engine.ps.pdfbytes += /* LINTED */
552: len < 0 ? 0 : (size_t)len;
1.4 kristaps 553: return;
554: }
555:
556: /*
557: * XXX: I assume that the in-margin print won't exceed
558: * PS_BUFSLOP (128 bytes), which is reasonable but still an
559: * assumption that will cause pukeage if it's not the case.
560: */
561:
1.40 ! joerg 562: ps_growbuf(p, PS_BUFSLOP);
1.4 kristaps 563:
564: pos = (int)p->engine.ps.psmargcur;
1.37 kristaps 565: len = vsnprintf(&p->engine.ps.psmarg[pos], PS_BUFSLOP, fmt, ap);
1.5 kristaps 566:
567: va_end(ap);
1.37 kristaps 568:
569: p->engine.ps.psmargcur = strlen(p->engine.ps.psmarg);
1.4 kristaps 570: }
571:
572:
573: static void
574: ps_putchar(struct termp *p, char c)
575: {
576: int pos;
577:
578: /* See ps_printf(). */
579:
1.29 kristaps 580: if ( ! (PS_MARGINS & p->engine.ps.flags)) {
1.4 kristaps 581: putchar(c);
1.37 kristaps 582: p->engine.ps.pdfbytes++;
1.4 kristaps 583: return;
584: }
585:
1.40 ! joerg 586: ps_growbuf(p, 2);
1.4 kristaps 587:
588: pos = (int)p->engine.ps.psmargcur++;
1.5 kristaps 589: p->engine.ps.psmarg[pos++] = c;
1.4 kristaps 590: p->engine.ps.psmarg[pos] = '\0';
1.2 kristaps 591: }
592:
593:
1.37 kristaps 594: static void
1.39 kristaps 595: pdf_obj(struct termp *p, size_t obj)
596: {
597:
598: assert(obj > 0);
599:
600: if ((obj - 1) >= p->engine.ps.pdfobjsz) {
601: p->engine.ps.pdfobjsz = obj + 128;
602: p->engine.ps.pdfobjs = realloc
603: (p->engine.ps.pdfobjs,
604: p->engine.ps.pdfobjsz * sizeof(size_t));
605: if (NULL == p->engine.ps.pdfobjs) {
606: perror(NULL);
607: exit(EXIT_FAILURE);
608: }
609: }
610:
611: p->engine.ps.pdfobjs[(int)obj - 1] = p->engine.ps.pdfbytes;
612: ps_printf(p, "%zu 0 obj\n", obj);
613: }
614:
615:
616: static void
1.37 kristaps 617: ps_closepage(struct termp *p)
618: {
619: int i;
1.38 kristaps 620: size_t len, base;
621:
622: /*
623: * Close out a page that we've already flushed to output. In
624: * PostScript, we simply note that the page must be showed. In
625: * PDF, we must now create the Length, Resource, and Page node
626: * for the page contents.
627: */
1.37 kristaps 628:
629: assert(p->engine.ps.psmarg && p->engine.ps.psmarg[0]);
630: ps_printf(p, "%s", p->engine.ps.psmarg);
631:
1.38 kristaps 632: if (TERMTYPE_PS != p->type) {
1.37 kristaps 633: ps_printf(p, "ET\n");
1.38 kristaps 634:
1.37 kristaps 635: len = p->engine.ps.pdfbytes - p->engine.ps.pdflastpg;
1.38 kristaps 636: base = p->engine.ps.pages * 4 + p->engine.ps.pdfbody;
637:
638: ps_printf(p, "endstream\nendobj\n");
639:
640: /* Length of content. */
1.39 kristaps 641: pdf_obj(p, base + 1);
1.38 kristaps 642: ps_printf(p, "%zu\nendobj\n", len);
643:
644: /* Resource for content. */
1.39 kristaps 645: pdf_obj(p, base + 2);
1.38 kristaps 646: ps_printf(p, "<<\n/ProcSet [/PDF /Text]\n");
1.37 kristaps 647: ps_printf(p, "/Font <<\n");
1.39 kristaps 648: for (i = 0; i < (int)TERMFONT__MAX; i++)
1.37 kristaps 649: ps_printf(p, "/F%d %d 0 R\n", i, 3 + i);
1.38 kristaps 650: ps_printf(p, ">>\n>>\n");
651:
652: /* Page node. */
1.39 kristaps 653: pdf_obj(p, base + 3);
654: ps_printf(p, "<<\n");
1.37 kristaps 655: ps_printf(p, "/Type /Page\n");
656: ps_printf(p, "/Parent 2 0 R\n");
1.38 kristaps 657: ps_printf(p, "/Resources %zu 0 R\n", base + 2);
658: ps_printf(p, "/Contents %zu 0 R\n", base);
659: ps_printf(p, ">>\nendobj\n");
660: } else
661: ps_printf(p, "showpage\n");
1.37 kristaps 662:
663: p->engine.ps.pages++;
664: p->engine.ps.psrow = p->engine.ps.top;
665: assert( ! (PS_NEWPAGE & p->engine.ps.flags));
666: p->engine.ps.flags |= PS_NEWPAGE;
667: }
668:
669:
1.3 kristaps 670: /* ARGSUSED */
1.2 kristaps 671: static void
672: ps_end(struct termp *p)
673: {
1.38 kristaps 674: size_t i, xref, base;
1.2 kristaps 675:
1.4 kristaps 676: /*
677: * At the end of the file, do one last showpage. This is the
678: * same behaviour as groff(1) and works for multiple pages as
679: * well as just one.
680: */
681:
1.30 kristaps 682: if ( ! (PS_NEWPAGE & p->engine.ps.flags)) {
683: assert(0 == p->engine.ps.flags);
684: assert('\0' == p->engine.ps.last);
1.37 kristaps 685: ps_closepage(p);
1.30 kristaps 686: }
1.16 kristaps 687:
1.37 kristaps 688: if (TERMTYPE_PS == p->type) {
689: ps_printf(p, "%%%%Trailer\n");
690: ps_printf(p, "%%%%Pages: %zu\n", p->engine.ps.pages);
691: ps_printf(p, "%%%%EOF\n");
692: return;
693: }
694:
1.39 kristaps 695: pdf_obj(p, 2);
696: ps_printf(p, "<<\n/Type /Pages\n");
1.37 kristaps 697: ps_printf(p, "/MediaBox [0 0 %zu %zu]\n",
698: (size_t)AFM2PNT(p, p->engine.ps.width),
699: (size_t)AFM2PNT(p, p->engine.ps.height));
700:
701: ps_printf(p, "/Count %zu\n", p->engine.ps.pages);
702: ps_printf(p, "/Kids [");
703:
704: for (i = 0; i < p->engine.ps.pages; i++)
1.38 kristaps 705: ps_printf(p, " %zu 0 R", i * 4 +
706: p->engine.ps.pdfbody + 3);
707:
708: base = (p->engine.ps.pages - 1) * 4 +
709: p->engine.ps.pdfbody + 4;
710:
711: ps_printf(p, "]\n>>\nendobj\n");
1.39 kristaps 712: pdf_obj(p, base);
1.37 kristaps 713: ps_printf(p, "<<\n");
714: ps_printf(p, "/Type /Catalog\n");
715: ps_printf(p, "/Pages 2 0 R\n");
716: ps_printf(p, ">>\n");
717: xref = p->engine.ps.pdfbytes;
718: ps_printf(p, "xref\n");
1.38 kristaps 719: ps_printf(p, "0 %zu\n", base + 1);
1.39 kristaps 720: ps_printf(p, "0000000000 65535 f \n");
721:
722: for (i = 0; i < base; i++)
723: ps_printf(p, "%.10zu 00000 n \n",
724: p->engine.ps.pdfobjs[(int)i]);
725:
1.37 kristaps 726: ps_printf(p, "trailer\n");
727: ps_printf(p, "<<\n");
1.38 kristaps 728: ps_printf(p, "/Size %zu\n", base + 1);
729: ps_printf(p, "/Root %zu 0 R\n", base);
1.37 kristaps 730: ps_printf(p, "/Info 1 0 R\n");
731: ps_printf(p, ">>\n");
732: ps_printf(p, "startxref\n");
733: ps_printf(p, "%zu\n", xref);
734: ps_printf(p, "%%%%EOF\n");
1.2 kristaps 735: }
736:
737:
738: static void
739: ps_begin(struct termp *p)
740: {
1.13 kristaps 741: time_t t;
1.16 kristaps 742: int i;
1.2 kristaps 743:
1.9 kristaps 744: /*
745: * Print margins into margin buffer. Nothing gets output to the
746: * screen yet, so we don't need to initialise the primary state.
1.2 kristaps 747: */
748:
1.4 kristaps 749: if (p->engine.ps.psmarg) {
750: assert(p->engine.ps.psmargsz);
751: p->engine.ps.psmarg[0] = '\0';
752: }
753:
1.39 kristaps 754: /*p->engine.ps.pdfbytes = 0;*/
1.4 kristaps 755: p->engine.ps.psmargcur = 0;
1.29 kristaps 756: p->engine.ps.flags = PS_MARGINS;
1.16 kristaps 757: p->engine.ps.pscol = p->engine.ps.left;
758: p->engine.ps.psrow = p->engine.ps.header;
1.4 kristaps 759:
1.9 kristaps 760: ps_setfont(p, TERMFONT_NONE);
1.4 kristaps 761:
762: (*p->headf)(p, p->argf);
763: (*p->endline)(p);
764:
1.16 kristaps 765: p->engine.ps.pscol = p->engine.ps.left;
766: p->engine.ps.psrow = p->engine.ps.footer;
1.4 kristaps 767:
768: (*p->footf)(p, p->argf);
769: (*p->endline)(p);
770:
1.29 kristaps 771: p->engine.ps.flags &= ~PS_MARGINS;
1.9 kristaps 772:
1.29 kristaps 773: assert(0 == p->engine.ps.flags);
1.9 kristaps 774: assert(p->engine.ps.psmarg);
775: assert('\0' != p->engine.ps.psmarg[0]);
776:
777: /*
778: * Print header and initialise page state. Following this,
779: * stuff gets printed to the screen, so make sure we're sane.
780: */
1.4 kristaps 781:
1.13 kristaps 782: t = time(NULL);
783:
1.37 kristaps 784: if (TERMTYPE_PS == p->type) {
785: ps_printf(p, "%%!PS-Adobe-3.0\n");
786: ps_printf(p, "%%%%Creator: mandoc-%s\n", VERSION);
787: ps_printf(p, "%%%%CreationDate: %s", ctime(&t));
788: ps_printf(p, "%%%%DocumentData: Clean7Bit\n");
789: ps_printf(p, "%%%%Orientation: Portrait\n");
790: ps_printf(p, "%%%%Pages: (atend)\n");
791: ps_printf(p, "%%%%PageOrder: Ascend\n");
792: ps_printf(p, "%%%%DocumentMedia: "
793: "Default %zu %zu 0 () ()\n",
794: (size_t)AFM2PNT(p, p->engine.ps.width),
795: (size_t)AFM2PNT(p, p->engine.ps.height));
796: ps_printf(p, "%%%%DocumentNeededResources: font");
797:
798: for (i = 0; i < (int)TERMFONT__MAX; i++)
799: ps_printf(p, " %s", fonts[i].name);
800:
801: ps_printf(p, "\n%%%%EndComments\n");
802: } else {
803: ps_printf(p, "%%PDF-1.1\n");
1.39 kristaps 804: pdf_obj(p, 1);
1.37 kristaps 805: ps_printf(p, "<<\n");
806: ps_printf(p, "/Creator mandoc-%s\n", VERSION);
807: ps_printf(p, ">>\n");
808: ps_printf(p, "endobj\n");
809:
810: for (i = 0; i < (int)TERMFONT__MAX; i++) {
1.39 kristaps 811: pdf_obj(p, (size_t)i + 3);
1.37 kristaps 812: ps_printf(p, "<<\n");
813: ps_printf(p, "/Type /Font\n");
814: ps_printf(p, "/Subtype /Type1\n");
815: ps_printf(p, "/Name /F%zu\n", i);
816: ps_printf(p, "/BaseFont /%s\n", fonts[i].name);
817: ps_printf(p, ">>\n");
818: }
819: }
1.16 kristaps 820:
1.37 kristaps 821: p->engine.ps.pdfbody = (size_t)TERMFONT__MAX + 3;
1.16 kristaps 822: p->engine.ps.pscol = p->engine.ps.left;
823: p->engine.ps.psrow = p->engine.ps.top;
1.29 kristaps 824: p->engine.ps.flags |= PS_NEWPAGE;
1.33 kristaps 825: ps_setfont(p, TERMFONT_NONE);
1.2 kristaps 826: }
827:
828:
829: static void
1.13 kristaps 830: ps_pletter(struct termp *p, int c)
1.2 kristaps 831: {
1.14 kristaps 832: int f;
1.32 kristaps 833:
1.9 kristaps 834: /*
1.32 kristaps 835: * If we haven't opened a page context, then output that we're
836: * in a new page and make sure the font is correctly set.
1.9 kristaps 837: */
838:
1.32 kristaps 839: if (PS_NEWPAGE & p->engine.ps.flags) {
1.37 kristaps 840: if (TERMTYPE_PS == p->type) {
841: ps_printf(p, "%%%%Page: %zu %zu\n",
842: p->engine.ps.pages + 1,
843: p->engine.ps.pages + 1);
844: ps_printf(p, "/%s %zu selectfont\n",
845: fonts[(int)p->engine.ps.lastf].name,
846: p->engine.ps.scale);
847: } else {
1.39 kristaps 848: pdf_obj(p, p->engine.ps.pdfbody +
1.38 kristaps 849: p->engine.ps.pages * 4);
1.37 kristaps 850: ps_printf(p, "<<\n");
851: ps_printf(p, "/Length %zu 0 R\n",
1.38 kristaps 852: p->engine.ps.pdfbody + 1 +
853: p->engine.ps.pages * 4);
1.37 kristaps 854: ps_printf(p, ">>\nstream\n");
855: }
856: p->engine.ps.pdflastpg = p->engine.ps.pdfbytes;
1.32 kristaps 857: p->engine.ps.flags &= ~PS_NEWPAGE;
858: }
859:
860: /*
861: * If we're not in a PostScript "word" context, then open one
862: * now at the current cursor.
863: */
1.30 kristaps 864:
1.29 kristaps 865: if ( ! (PS_INLINE & p->engine.ps.flags)) {
1.37 kristaps 866: if (TERMTYPE_PS != p->type) {
867: ps_printf(p, "BT\n/F%d %zu Tf\n",
868: (int)p->engine.ps.lastf,
869: p->engine.ps.scale);
870: ps_printf(p, "%.3f %.3f Td\n(",
871: AFM2PNT(p, p->engine.ps.pscol),
872: AFM2PNT(p, p->engine.ps.psrow));
873: } else
874: ps_printf(p, "%.3f %.3f moveto\n(",
875: AFM2PNT(p, p->engine.ps.pscol),
876: AFM2PNT(p, p->engine.ps.psrow));
1.29 kristaps 877: p->engine.ps.flags |= PS_INLINE;
1.2 kristaps 878: }
879:
1.29 kristaps 880: assert( ! (PS_NEWPAGE & p->engine.ps.flags));
881:
1.2 kristaps 882: /*
883: * We need to escape these characters as per the PostScript
884: * specification. We would also escape non-graphable characters
885: * (like tabs), but none of them would get to this point and
886: * it's superfluous to abort() on them.
887: */
888:
889: switch (c) {
890: case ('('):
891: /* FALLTHROUGH */
892: case (')'):
893: /* FALLTHROUGH */
894: case ('\\'):
1.4 kristaps 895: ps_putchar(p, '\\');
1.2 kristaps 896: break;
897: default:
898: break;
899: }
900:
901: /* Write the character and adjust where we are on the page. */
1.9 kristaps 902:
1.14 kristaps 903: f = (int)p->engine.ps.lastf;
1.13 kristaps 904:
1.14 kristaps 905: if (c <= 32 || (c - 32 > MAXCHAR)) {
1.13 kristaps 906: ps_putchar(p, ' ');
1.36 kristaps 907: p->engine.ps.pscol += (size_t)fonts[f].gly[0].wx;
1.13 kristaps 908: return;
909: }
910:
1.25 kristaps 911: ps_putchar(p, (char)c);
1.14 kristaps 912: c -= 32;
1.36 kristaps 913: p->engine.ps.pscol += (size_t)fonts[f].gly[c].wx;
1.2 kristaps 914: }
915:
916:
917: static void
1.9 kristaps 918: ps_pclose(struct termp *p)
919: {
920:
921: /*
922: * Spit out that we're exiting a word context (this is a
923: * "partial close" because we don't check the last-char buffer
924: * or anything).
925: */
926:
1.29 kristaps 927: if ( ! (PS_INLINE & p->engine.ps.flags))
1.9 kristaps 928: return;
929:
1.37 kristaps 930: if (TERMTYPE_PS != p->type) {
931: ps_printf(p, ") Tj\nET\n");
932: } else
933: ps_printf(p, ") show\n");
934:
1.29 kristaps 935: p->engine.ps.flags &= ~PS_INLINE;
1.9 kristaps 936: }
937:
938:
939: static void
940: ps_fclose(struct termp *p)
941: {
942:
943: /*
944: * Strong closure: if we have a last-char, spit it out after
945: * checking that we're in the right font mode. This will of
946: * course open a new scope, if applicable.
947: *
948: * Following this, close out any scope that's open.
949: */
950:
951: if ('\0' != p->engine.ps.last) {
952: if (p->engine.ps.lastf != TERMFONT_NONE) {
953: ps_pclose(p);
954: ps_setfont(p, TERMFONT_NONE);
955: }
956: ps_pletter(p, p->engine.ps.last);
957: p->engine.ps.last = '\0';
958: }
959:
1.29 kristaps 960: if ( ! (PS_INLINE & p->engine.ps.flags))
1.9 kristaps 961: return;
962:
963: ps_pclose(p);
964: }
965:
966:
967: static void
1.8 kristaps 968: ps_letter(struct termp *p, char c)
969: {
970: char cc;
1.9 kristaps 971:
972: /*
973: * State machine dictates whether to buffer the last character
974: * or not. Basically, encoded words are detected by checking if
975: * we're an "8" and switching on the buffer. Then we put "8" in
976: * our buffer, and on the next charater, flush both character
977: * and buffer. Thus, "regular" words are detected by having a
978: * regular character and a regular buffer character.
979: */
980:
1.8 kristaps 981: if ('\0' == p->engine.ps.last) {
982: assert(8 != c);
983: p->engine.ps.last = c;
984: return;
985: } else if (8 == p->engine.ps.last) {
986: assert(8 != c);
1.9 kristaps 987: p->engine.ps.last = '\0';
1.8 kristaps 988: } else if (8 == c) {
989: assert(8 != p->engine.ps.last);
1.9 kristaps 990: if ('_' == p->engine.ps.last) {
991: if (p->engine.ps.lastf != TERMFONT_UNDER) {
992: ps_pclose(p);
993: ps_setfont(p, TERMFONT_UNDER);
994: }
995: } else if (p->engine.ps.lastf != TERMFONT_BOLD) {
996: ps_pclose(p);
997: ps_setfont(p, TERMFONT_BOLD);
998: }
1.8 kristaps 999: p->engine.ps.last = c;
1000: return;
1001: } else {
1.9 kristaps 1002: if (p->engine.ps.lastf != TERMFONT_NONE) {
1003: ps_pclose(p);
1004: ps_setfont(p, TERMFONT_NONE);
1005: }
1.8 kristaps 1006: cc = p->engine.ps.last;
1007: p->engine.ps.last = c;
1008: c = cc;
1009: }
1010:
1.9 kristaps 1011: ps_pletter(p, c);
1.8 kristaps 1012: }
1013:
1014:
1015: static void
1.2 kristaps 1016: ps_advance(struct termp *p, size_t len)
1017: {
1018:
1.9 kristaps 1019: /*
1020: * Advance some spaces. This can probably be made smarter,
1021: * i.e., to have multiple space-separated words in the same
1022: * scope, but this is easier: just close out the current scope
1023: * and readjust our column settings.
1024: */
1.8 kristaps 1025:
1.9 kristaps 1026: ps_fclose(p);
1.14 kristaps 1027: p->engine.ps.pscol += len;
1.2 kristaps 1028: }
1029:
1030:
1031: static void
1032: ps_endline(struct termp *p)
1033: {
1.8 kristaps 1034:
1.9 kristaps 1035: /* Close out any scopes we have open: we're at eoln. */
1036:
1037: ps_fclose(p);
1.2 kristaps 1038:
1.9 kristaps 1039: /*
1040: * If we're in the margin, don't try to recalculate our current
1041: * row. XXX: if the column tries to be fancy with multiple
1042: * lines, we'll do nasty stuff.
1043: */
1.2 kristaps 1044:
1.29 kristaps 1045: if (PS_MARGINS & p->engine.ps.flags)
1046: return;
1047:
1048: /* Left-justify. */
1049:
1050: p->engine.ps.pscol = p->engine.ps.left;
1051:
1052: /* If we haven't printed anything, return. */
1053:
1054: if (PS_NEWPAGE & p->engine.ps.flags)
1.2 kristaps 1055: return;
1056:
1.9 kristaps 1057: /*
1058: * Put us down a line. If we're at the page bottom, spit out a
1059: * showpage and restart our row.
1060: */
1061:
1.16 kristaps 1062: if (p->engine.ps.psrow >= p->engine.ps.lineheight +
1063: p->engine.ps.bottom) {
1064: p->engine.ps.psrow -= p->engine.ps.lineheight;
1.2 kristaps 1065: return;
1066: }
1067:
1.37 kristaps 1068: ps_closepage(p);
1.1 kristaps 1069: }
1.9 kristaps 1070:
1071:
1072: static void
1073: ps_setfont(struct termp *p, enum termfont f)
1074: {
1075:
1.16 kristaps 1076: assert(f < TERMFONT__MAX);
1.32 kristaps 1077: p->engine.ps.lastf = f;
1078:
1079: /*
1080: * If we're still at the top of the page, let the font-setting
1081: * be delayed until we actually have stuff to print.
1082: */
1083:
1084: if (PS_NEWPAGE & p->engine.ps.flags)
1085: return;
1086:
1.37 kristaps 1087: if (TERMTYPE_PS == p->type)
1088: ps_printf(p, "/%s %zu selectfont\n",
1089: fonts[(int)f].name,
1090: p->engine.ps.scale);
1091: else
1092: ps_printf(p, "/F%d %zu Tf\n",
1093: (int)f,
1094: p->engine.ps.scale);
1.9 kristaps 1095: }
1096:
1.11 kristaps 1097:
1.12 kristaps 1098: /* ARGSUSED */
1.11 kristaps 1099: static size_t
1100: ps_width(const struct termp *p, char c)
1101: {
1102:
1.14 kristaps 1103: if (c <= 32 || c - 32 >= MAXCHAR)
1.36 kristaps 1104: return((size_t)fonts[(int)TERMFONT_NONE].gly[0].wx);
1.14 kristaps 1105:
1106: c -= 32;
1.36 kristaps 1107: return((size_t)fonts[(int)TERMFONT_NONE].gly[(int)c].wx);
1.11 kristaps 1108: }
1.19 kristaps 1109:
1110:
1.20 kristaps 1111: static double
1.19 kristaps 1112: ps_hspan(const struct termp *p, const struct roffsu *su)
1113: {
1114: double r;
1115:
1116: /*
1117: * All of these measurements are derived by converting from the
1.21 kristaps 1118: * native measurement to AFM units.
1.19 kristaps 1119: */
1120:
1121: switch (su->unit) {
1122: case (SCALE_CM):
1.21 kristaps 1123: r = PNT2AFM(p, su->scale * 28.34);
1.19 kristaps 1124: break;
1125: case (SCALE_IN):
1.21 kristaps 1126: r = PNT2AFM(p, su->scale * 72);
1.19 kristaps 1127: break;
1128: case (SCALE_PC):
1.21 kristaps 1129: r = PNT2AFM(p, su->scale * 12);
1.19 kristaps 1130: break;
1131: case (SCALE_PT):
1.21 kristaps 1132: r = PNT2AFM(p, su->scale * 100);
1.19 kristaps 1133: break;
1134: case (SCALE_EM):
1.36 kristaps 1135: r = su->scale *
1.19 kristaps 1136: fonts[(int)TERMFONT_NONE].gly[109 - 32].wx;
1137: break;
1138: case (SCALE_MM):
1.21 kristaps 1139: r = PNT2AFM(p, su->scale * 2.834);
1.19 kristaps 1140: break;
1141: case (SCALE_EN):
1.36 kristaps 1142: r = su->scale *
1.19 kristaps 1143: fonts[(int)TERMFONT_NONE].gly[110 - 32].wx;
1144: break;
1145: case (SCALE_VS):
1146: r = su->scale * p->engine.ps.lineheight;
1147: break;
1148: default:
1149: r = su->scale;
1150: break;
1151: }
1152:
1.20 kristaps 1153: return(r);
1.19 kristaps 1154: }
1155:
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