Annotation of mandoc/term_ps.c, Revision 1.39
1.39 ! kristaps 1: /* $Id: term_ps.c,v 1.38 2010/07/25 19:37:38 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: #define PS_GROWBUF(p, sz) \
357: do if ((p)->engine.ps.psmargcur + (sz) > \
358: (p)->engine.ps.psmargsz) { \
359: (p)->engine.ps.psmargsz += /* CONSTCOND */ \
360: MAX(PS_BUFSLOP, (sz)); \
361: (p)->engine.ps.psmarg = realloc \
362: ((p)->engine.ps.psmarg, \
363: (p)->engine.ps.psmargsz); \
364: if (NULL == (p)->engine.ps.psmarg) { \
365: perror(NULL); \
366: exit(EXIT_FAILURE); \
367: } \
368: } while (/* CONSTCOND */ 0)
369:
1.9 kristaps 370:
1.20 kristaps 371: static double ps_hspan(const struct termp *,
1.19 kristaps 372: const struct roffsu *);
373: static size_t ps_width(const struct termp *, char);
374: static void ps_advance(struct termp *, size_t);
1.2 kristaps 375: static void ps_begin(struct termp *);
1.37 kristaps 376: static void ps_closepage(struct termp *);
1.2 kristaps 377: static void ps_end(struct termp *);
378: static void ps_endline(struct termp *);
1.9 kristaps 379: static void ps_fclose(struct termp *);
1.19 kristaps 380: static void ps_letter(struct termp *, char);
1.9 kristaps 381: static void ps_pclose(struct termp *);
1.13 kristaps 382: static void ps_pletter(struct termp *, int);
1.4 kristaps 383: static void ps_printf(struct termp *, const char *, ...);
384: static void ps_putchar(struct termp *, char);
1.9 kristaps 385: static void ps_setfont(struct termp *, enum termfont);
1.37 kristaps 386: static struct termp *pspdf_alloc(char *);
1.39 ! kristaps 387: static void pdf_obj(struct termp *, size_t);
1.37 kristaps 388:
389:
390: void *
391: pdf_alloc(char *outopts)
392: {
393: struct termp *p;
394:
1.38 kristaps 395: if (NULL != (p = pspdf_alloc(outopts)))
396: p->type = TERMTYPE_PDF;
1.37 kristaps 397:
398: return(p);
399: }
1.2 kristaps 400:
401:
1.1 kristaps 402: void *
1.17 kristaps 403: ps_alloc(char *outopts)
1.1 kristaps 404: {
405: struct termp *p;
1.37 kristaps 406:
1.38 kristaps 407: if (NULL != (p = pspdf_alloc(outopts)))
408: p->type = TERMTYPE_PS;
1.37 kristaps 409:
410: return(p);
411: }
412:
413:
414: static struct termp *
415: pspdf_alloc(char *outopts)
416: {
417: struct termp *p;
1.28 kristaps 418: size_t pagex, pagey, marginx, marginy, lineheight;
1.17 kristaps 419: const char *toks[2];
1.25 kristaps 420: const char *pp;
1.17 kristaps 421: char *v;
1.1 kristaps 422:
423: if (NULL == (p = term_alloc(TERMENC_ASCII)))
424: return(NULL);
425:
1.19 kristaps 426: p->advance = ps_advance;
1.2 kristaps 427: p->begin = ps_begin;
428: p->end = ps_end;
429: p->endline = ps_endline;
1.19 kristaps 430: p->hspan = ps_hspan;
431: p->letter = ps_letter;
1.11 kristaps 432: p->width = ps_width;
1.21 kristaps 433:
1.17 kristaps 434: toks[0] = "paper";
435: toks[1] = NULL;
436:
1.25 kristaps 437: pp = NULL;
1.19 kristaps 438:
1.17 kristaps 439: while (outopts && *outopts)
440: switch (getsubopt(&outopts, UNCONST(toks), &v)) {
441: case (0):
1.25 kristaps 442: pp = v;
1.17 kristaps 443: break;
444: default:
445: break;
446: }
1.16 kristaps 447:
1.25 kristaps 448: /* Default to US letter (millimetres). */
449:
1.31 kristaps 450: pagex = 216;
451: pagey = 279;
1.25 kristaps 452:
453: /*
454: * The ISO-269 paper sizes can be calculated automatically, but
455: * it would require bringing in -lm for pow() and I'd rather not
456: * do that. So just do it the easy way for now. Since this
457: * only happens once, I'm not terribly concerned.
458: */
459:
460: if (pp && strcasecmp(pp, "letter")) {
461: if (0 == strcasecmp(pp, "a3")) {
462: pagex = 297;
463: pagey = 420;
464: } else if (0 == strcasecmp(pp, "a4")) {
465: pagex = 210;
466: pagey = 297;
467: } else if (0 == strcasecmp(pp, "a5")) {
468: pagex = 148;
469: pagey = 210;
470: } else if (0 == strcasecmp(pp, "legal")) {
471: pagex = 216;
472: pagey = 356;
473: } else if (2 != sscanf(pp, "%zux%zu", &pagex, &pagey))
474: fprintf(stderr, "%s: Unknown paper\n", pp);
1.27 kristaps 475: } else if (NULL == pp)
476: pp = "letter";
477:
478: /*
479: * This MUST be defined before any PNT2AFM or AFM2PNT
480: * calculations occur.
481: */
482:
483: p->engine.ps.scale = 11;
484:
1.25 kristaps 485: /* Remember millimetres -> AFM units. */
486:
487: pagex = PNT2AFM(p, ((double)pagex * 2.834));
488: pagey = PNT2AFM(p, ((double)pagey * 2.834));
489:
1.28 kristaps 490: /* Margins are 1/9 the page x and y. */
1.27 kristaps 491:
1.29 kristaps 492: marginx = /* LINTED */
493: (size_t)((double)pagex / 9.0);
494: marginy = /* LINTED */
495: (size_t)((double)pagey / 9.0);
1.27 kristaps 496:
1.31 kristaps 497: /* Line-height is 1.4em. */
498:
499: lineheight = PNT2AFM(p, ((double)p->engine.ps.scale * 1.4));
1.16 kristaps 500:
501: p->engine.ps.width = pagex;
502: p->engine.ps.height = pagey;
1.28 kristaps 503: p->engine.ps.header = pagey - (marginy / 2) - (lineheight / 2);
504: p->engine.ps.top = pagey - marginy;
505: p->engine.ps.footer = (marginy / 2) - (lineheight / 2);
506: p->engine.ps.bottom = marginy;
507: p->engine.ps.left = marginx;
1.18 kristaps 508: p->engine.ps.lineheight = lineheight;
1.16 kristaps 509:
1.28 kristaps 510: p->defrmargin = pagex - (marginx * 2);
1.1 kristaps 511: return(p);
512: }
513:
514:
515: void
1.37 kristaps 516: pspdf_free(void *arg)
1.1 kristaps 517: {
1.4 kristaps 518: struct termp *p;
519:
520: p = (struct termp *)arg;
521:
522: if (p->engine.ps.psmarg)
523: free(p->engine.ps.psmarg);
1.39 ! kristaps 524: if (p->engine.ps.pdfobjs)
! 525: free(p->engine.ps.pdfobjs);
1.4 kristaps 526:
527: term_free(p);
528: }
529:
530:
531: static void
532: ps_printf(struct termp *p, const char *fmt, ...)
533: {
534: va_list ap;
1.37 kristaps 535: int pos, len;
1.4 kristaps 536:
537: va_start(ap, fmt);
538:
539: /*
540: * If we're running in regular mode, then pipe directly into
541: * vprintf(). If we're processing margins, then push the data
542: * into our growable margin buffer.
543: */
1.1 kristaps 544:
1.29 kristaps 545: if ( ! (PS_MARGINS & p->engine.ps.flags)) {
1.37 kristaps 546: len = vprintf(fmt, ap);
1.4 kristaps 547: va_end(ap);
1.37 kristaps 548: p->engine.ps.pdfbytes += /* LINTED */
549: len < 0 ? 0 : (size_t)len;
1.4 kristaps 550: return;
551: }
552:
553: /*
554: * XXX: I assume that the in-margin print won't exceed
555: * PS_BUFSLOP (128 bytes), which is reasonable but still an
556: * assumption that will cause pukeage if it's not the case.
557: */
558:
559: PS_GROWBUF(p, PS_BUFSLOP);
560:
561: pos = (int)p->engine.ps.psmargcur;
1.37 kristaps 562: len = vsnprintf(&p->engine.ps.psmarg[pos], PS_BUFSLOP, fmt, ap);
1.5 kristaps 563:
564: va_end(ap);
1.37 kristaps 565:
566: p->engine.ps.psmargcur = strlen(p->engine.ps.psmarg);
1.4 kristaps 567: }
568:
569:
570: static void
571: ps_putchar(struct termp *p, char c)
572: {
573: int pos;
574:
575: /* See ps_printf(). */
576:
1.29 kristaps 577: if ( ! (PS_MARGINS & p->engine.ps.flags)) {
1.4 kristaps 578: putchar(c);
1.37 kristaps 579: p->engine.ps.pdfbytes++;
1.4 kristaps 580: return;
581: }
582:
583: PS_GROWBUF(p, 2);
584:
585: pos = (int)p->engine.ps.psmargcur++;
1.5 kristaps 586: p->engine.ps.psmarg[pos++] = c;
1.4 kristaps 587: p->engine.ps.psmarg[pos] = '\0';
1.2 kristaps 588: }
589:
590:
1.37 kristaps 591: static void
1.39 ! kristaps 592: pdf_obj(struct termp *p, size_t obj)
! 593: {
! 594:
! 595: assert(obj > 0);
! 596:
! 597: if ((obj - 1) >= p->engine.ps.pdfobjsz) {
! 598: p->engine.ps.pdfobjsz = obj + 128;
! 599: p->engine.ps.pdfobjs = realloc
! 600: (p->engine.ps.pdfobjs,
! 601: p->engine.ps.pdfobjsz * sizeof(size_t));
! 602: if (NULL == p->engine.ps.pdfobjs) {
! 603: perror(NULL);
! 604: exit(EXIT_FAILURE);
! 605: }
! 606: }
! 607:
! 608: p->engine.ps.pdfobjs[(int)obj - 1] = p->engine.ps.pdfbytes;
! 609: ps_printf(p, "%zu 0 obj\n", obj);
! 610: }
! 611:
! 612:
! 613: static void
1.37 kristaps 614: ps_closepage(struct termp *p)
615: {
616: int i;
1.38 kristaps 617: size_t len, base;
618:
619: /*
620: * Close out a page that we've already flushed to output. In
621: * PostScript, we simply note that the page must be showed. In
622: * PDF, we must now create the Length, Resource, and Page node
623: * for the page contents.
624: */
1.37 kristaps 625:
626: assert(p->engine.ps.psmarg && p->engine.ps.psmarg[0]);
627: ps_printf(p, "%s", p->engine.ps.psmarg);
628:
1.38 kristaps 629: if (TERMTYPE_PS != p->type) {
1.37 kristaps 630: ps_printf(p, "ET\n");
1.38 kristaps 631:
1.37 kristaps 632: len = p->engine.ps.pdfbytes - p->engine.ps.pdflastpg;
1.38 kristaps 633: base = p->engine.ps.pages * 4 + p->engine.ps.pdfbody;
634:
635: ps_printf(p, "endstream\nendobj\n");
636:
637: /* Length of content. */
1.39 ! kristaps 638: pdf_obj(p, base + 1);
1.38 kristaps 639: ps_printf(p, "%zu\nendobj\n", len);
640:
641: /* Resource for content. */
1.39 ! kristaps 642: pdf_obj(p, base + 2);
1.38 kristaps 643: ps_printf(p, "<<\n/ProcSet [/PDF /Text]\n");
1.37 kristaps 644: ps_printf(p, "/Font <<\n");
1.39 ! kristaps 645: for (i = 0; i < (int)TERMFONT__MAX; i++)
1.37 kristaps 646: ps_printf(p, "/F%d %d 0 R\n", i, 3 + i);
1.38 kristaps 647: ps_printf(p, ">>\n>>\n");
648:
649: /* Page node. */
1.39 ! kristaps 650: pdf_obj(p, base + 3);
! 651: ps_printf(p, "<<\n");
1.37 kristaps 652: ps_printf(p, "/Type /Page\n");
653: ps_printf(p, "/Parent 2 0 R\n");
1.38 kristaps 654: ps_printf(p, "/Resources %zu 0 R\n", base + 2);
655: ps_printf(p, "/Contents %zu 0 R\n", base);
656: ps_printf(p, ">>\nendobj\n");
657: } else
658: ps_printf(p, "showpage\n");
1.37 kristaps 659:
660: p->engine.ps.pages++;
661: p->engine.ps.psrow = p->engine.ps.top;
662: assert( ! (PS_NEWPAGE & p->engine.ps.flags));
663: p->engine.ps.flags |= PS_NEWPAGE;
664: }
665:
666:
1.3 kristaps 667: /* ARGSUSED */
1.2 kristaps 668: static void
669: ps_end(struct termp *p)
670: {
1.38 kristaps 671: size_t i, xref, base;
1.2 kristaps 672:
1.4 kristaps 673: /*
674: * At the end of the file, do one last showpage. This is the
675: * same behaviour as groff(1) and works for multiple pages as
676: * well as just one.
677: */
678:
1.30 kristaps 679: if ( ! (PS_NEWPAGE & p->engine.ps.flags)) {
680: assert(0 == p->engine.ps.flags);
681: assert('\0' == p->engine.ps.last);
1.37 kristaps 682: ps_closepage(p);
1.30 kristaps 683: }
1.16 kristaps 684:
1.37 kristaps 685: if (TERMTYPE_PS == p->type) {
686: ps_printf(p, "%%%%Trailer\n");
687: ps_printf(p, "%%%%Pages: %zu\n", p->engine.ps.pages);
688: ps_printf(p, "%%%%EOF\n");
689: return;
690: }
691:
1.39 ! kristaps 692: pdf_obj(p, 2);
! 693: ps_printf(p, "<<\n/Type /Pages\n");
1.37 kristaps 694: ps_printf(p, "/MediaBox [0 0 %zu %zu]\n",
695: (size_t)AFM2PNT(p, p->engine.ps.width),
696: (size_t)AFM2PNT(p, p->engine.ps.height));
697:
698: ps_printf(p, "/Count %zu\n", p->engine.ps.pages);
699: ps_printf(p, "/Kids [");
700:
701: for (i = 0; i < p->engine.ps.pages; i++)
1.38 kristaps 702: ps_printf(p, " %zu 0 R", i * 4 +
703: p->engine.ps.pdfbody + 3);
704:
705: base = (p->engine.ps.pages - 1) * 4 +
706: p->engine.ps.pdfbody + 4;
707:
708: ps_printf(p, "]\n>>\nendobj\n");
1.39 ! kristaps 709: pdf_obj(p, base);
1.37 kristaps 710: ps_printf(p, "<<\n");
711: ps_printf(p, "/Type /Catalog\n");
712: ps_printf(p, "/Pages 2 0 R\n");
713: ps_printf(p, ">>\n");
714: xref = p->engine.ps.pdfbytes;
715: ps_printf(p, "xref\n");
1.38 kristaps 716: ps_printf(p, "0 %zu\n", base + 1);
1.39 ! kristaps 717: ps_printf(p, "0000000000 65535 f \n");
! 718:
! 719: for (i = 0; i < base; i++)
! 720: ps_printf(p, "%.10zu 00000 n \n",
! 721: p->engine.ps.pdfobjs[(int)i]);
! 722:
1.37 kristaps 723: ps_printf(p, "trailer\n");
724: ps_printf(p, "<<\n");
1.38 kristaps 725: ps_printf(p, "/Size %zu\n", base + 1);
726: ps_printf(p, "/Root %zu 0 R\n", base);
1.37 kristaps 727: ps_printf(p, "/Info 1 0 R\n");
728: ps_printf(p, ">>\n");
729: ps_printf(p, "startxref\n");
730: ps_printf(p, "%zu\n", xref);
731: ps_printf(p, "%%%%EOF\n");
1.2 kristaps 732: }
733:
734:
735: static void
736: ps_begin(struct termp *p)
737: {
1.13 kristaps 738: time_t t;
1.16 kristaps 739: int i;
1.2 kristaps 740:
1.9 kristaps 741: /*
742: * Print margins into margin buffer. Nothing gets output to the
743: * screen yet, so we don't need to initialise the primary state.
1.2 kristaps 744: */
745:
1.4 kristaps 746: if (p->engine.ps.psmarg) {
747: assert(p->engine.ps.psmargsz);
748: p->engine.ps.psmarg[0] = '\0';
749: }
750:
1.39 ! kristaps 751: /*p->engine.ps.pdfbytes = 0;*/
1.4 kristaps 752: p->engine.ps.psmargcur = 0;
1.29 kristaps 753: p->engine.ps.flags = PS_MARGINS;
1.16 kristaps 754: p->engine.ps.pscol = p->engine.ps.left;
755: p->engine.ps.psrow = p->engine.ps.header;
1.4 kristaps 756:
1.9 kristaps 757: ps_setfont(p, TERMFONT_NONE);
1.4 kristaps 758:
759: (*p->headf)(p, p->argf);
760: (*p->endline)(p);
761:
1.16 kristaps 762: p->engine.ps.pscol = p->engine.ps.left;
763: p->engine.ps.psrow = p->engine.ps.footer;
1.4 kristaps 764:
765: (*p->footf)(p, p->argf);
766: (*p->endline)(p);
767:
1.29 kristaps 768: p->engine.ps.flags &= ~PS_MARGINS;
1.9 kristaps 769:
1.29 kristaps 770: assert(0 == p->engine.ps.flags);
1.9 kristaps 771: assert(p->engine.ps.psmarg);
772: assert('\0' != p->engine.ps.psmarg[0]);
773:
774: /*
775: * Print header and initialise page state. Following this,
776: * stuff gets printed to the screen, so make sure we're sane.
777: */
1.4 kristaps 778:
1.13 kristaps 779: t = time(NULL);
780:
1.37 kristaps 781: if (TERMTYPE_PS == p->type) {
782: ps_printf(p, "%%!PS-Adobe-3.0\n");
783: ps_printf(p, "%%%%Creator: mandoc-%s\n", VERSION);
784: ps_printf(p, "%%%%CreationDate: %s", ctime(&t));
785: ps_printf(p, "%%%%DocumentData: Clean7Bit\n");
786: ps_printf(p, "%%%%Orientation: Portrait\n");
787: ps_printf(p, "%%%%Pages: (atend)\n");
788: ps_printf(p, "%%%%PageOrder: Ascend\n");
789: ps_printf(p, "%%%%DocumentMedia: "
790: "Default %zu %zu 0 () ()\n",
791: (size_t)AFM2PNT(p, p->engine.ps.width),
792: (size_t)AFM2PNT(p, p->engine.ps.height));
793: ps_printf(p, "%%%%DocumentNeededResources: font");
794:
795: for (i = 0; i < (int)TERMFONT__MAX; i++)
796: ps_printf(p, " %s", fonts[i].name);
797:
798: ps_printf(p, "\n%%%%EndComments\n");
799: } else {
800: ps_printf(p, "%%PDF-1.1\n");
1.39 ! kristaps 801: pdf_obj(p, 1);
1.37 kristaps 802: ps_printf(p, "<<\n");
803: ps_printf(p, "/Creator mandoc-%s\n", VERSION);
804: ps_printf(p, ">>\n");
805: ps_printf(p, "endobj\n");
806:
807: for (i = 0; i < (int)TERMFONT__MAX; i++) {
1.39 ! kristaps 808: pdf_obj(p, (size_t)i + 3);
1.37 kristaps 809: ps_printf(p, "<<\n");
810: ps_printf(p, "/Type /Font\n");
811: ps_printf(p, "/Subtype /Type1\n");
812: ps_printf(p, "/Name /F%zu\n", i);
813: ps_printf(p, "/BaseFont /%s\n", fonts[i].name);
814: ps_printf(p, ">>\n");
815: }
816: }
1.16 kristaps 817:
1.37 kristaps 818: p->engine.ps.pdfbody = (size_t)TERMFONT__MAX + 3;
1.16 kristaps 819: p->engine.ps.pscol = p->engine.ps.left;
820: p->engine.ps.psrow = p->engine.ps.top;
1.29 kristaps 821: p->engine.ps.flags |= PS_NEWPAGE;
1.33 kristaps 822: ps_setfont(p, TERMFONT_NONE);
1.2 kristaps 823: }
824:
825:
826: static void
1.13 kristaps 827: ps_pletter(struct termp *p, int c)
1.2 kristaps 828: {
1.14 kristaps 829: int f;
1.32 kristaps 830:
1.9 kristaps 831: /*
1.32 kristaps 832: * If we haven't opened a page context, then output that we're
833: * in a new page and make sure the font is correctly set.
1.9 kristaps 834: */
835:
1.32 kristaps 836: if (PS_NEWPAGE & p->engine.ps.flags) {
1.37 kristaps 837: if (TERMTYPE_PS == p->type) {
838: ps_printf(p, "%%%%Page: %zu %zu\n",
839: p->engine.ps.pages + 1,
840: p->engine.ps.pages + 1);
841: ps_printf(p, "/%s %zu selectfont\n",
842: fonts[(int)p->engine.ps.lastf].name,
843: p->engine.ps.scale);
844: } else {
1.39 ! kristaps 845: pdf_obj(p, p->engine.ps.pdfbody +
1.38 kristaps 846: p->engine.ps.pages * 4);
1.37 kristaps 847: ps_printf(p, "<<\n");
848: ps_printf(p, "/Length %zu 0 R\n",
1.38 kristaps 849: p->engine.ps.pdfbody + 1 +
850: p->engine.ps.pages * 4);
1.37 kristaps 851: ps_printf(p, ">>\nstream\n");
852: }
853: p->engine.ps.pdflastpg = p->engine.ps.pdfbytes;
1.32 kristaps 854: p->engine.ps.flags &= ~PS_NEWPAGE;
855: }
856:
857: /*
858: * If we're not in a PostScript "word" context, then open one
859: * now at the current cursor.
860: */
1.30 kristaps 861:
1.29 kristaps 862: if ( ! (PS_INLINE & p->engine.ps.flags)) {
1.37 kristaps 863: if (TERMTYPE_PS != p->type) {
864: ps_printf(p, "BT\n/F%d %zu Tf\n",
865: (int)p->engine.ps.lastf,
866: p->engine.ps.scale);
867: ps_printf(p, "%.3f %.3f Td\n(",
868: AFM2PNT(p, p->engine.ps.pscol),
869: AFM2PNT(p, p->engine.ps.psrow));
870: } else
871: ps_printf(p, "%.3f %.3f moveto\n(",
872: AFM2PNT(p, p->engine.ps.pscol),
873: AFM2PNT(p, p->engine.ps.psrow));
1.29 kristaps 874: p->engine.ps.flags |= PS_INLINE;
1.2 kristaps 875: }
876:
1.29 kristaps 877: assert( ! (PS_NEWPAGE & p->engine.ps.flags));
878:
1.2 kristaps 879: /*
880: * We need to escape these characters as per the PostScript
881: * specification. We would also escape non-graphable characters
882: * (like tabs), but none of them would get to this point and
883: * it's superfluous to abort() on them.
884: */
885:
886: switch (c) {
887: case ('('):
888: /* FALLTHROUGH */
889: case (')'):
890: /* FALLTHROUGH */
891: case ('\\'):
1.4 kristaps 892: ps_putchar(p, '\\');
1.2 kristaps 893: break;
894: default:
895: break;
896: }
897:
898: /* Write the character and adjust where we are on the page. */
1.9 kristaps 899:
1.14 kristaps 900: f = (int)p->engine.ps.lastf;
1.13 kristaps 901:
1.14 kristaps 902: if (c <= 32 || (c - 32 > MAXCHAR)) {
1.13 kristaps 903: ps_putchar(p, ' ');
1.36 kristaps 904: p->engine.ps.pscol += (size_t)fonts[f].gly[0].wx;
1.13 kristaps 905: return;
906: }
907:
1.25 kristaps 908: ps_putchar(p, (char)c);
1.14 kristaps 909: c -= 32;
1.36 kristaps 910: p->engine.ps.pscol += (size_t)fonts[f].gly[c].wx;
1.2 kristaps 911: }
912:
913:
914: static void
1.9 kristaps 915: ps_pclose(struct termp *p)
916: {
917:
918: /*
919: * Spit out that we're exiting a word context (this is a
920: * "partial close" because we don't check the last-char buffer
921: * or anything).
922: */
923:
1.29 kristaps 924: if ( ! (PS_INLINE & p->engine.ps.flags))
1.9 kristaps 925: return;
926:
1.37 kristaps 927: if (TERMTYPE_PS != p->type) {
928: ps_printf(p, ") Tj\nET\n");
929: } else
930: ps_printf(p, ") show\n");
931:
1.29 kristaps 932: p->engine.ps.flags &= ~PS_INLINE;
1.9 kristaps 933: }
934:
935:
936: static void
937: ps_fclose(struct termp *p)
938: {
939:
940: /*
941: * Strong closure: if we have a last-char, spit it out after
942: * checking that we're in the right font mode. This will of
943: * course open a new scope, if applicable.
944: *
945: * Following this, close out any scope that's open.
946: */
947:
948: if ('\0' != p->engine.ps.last) {
949: if (p->engine.ps.lastf != TERMFONT_NONE) {
950: ps_pclose(p);
951: ps_setfont(p, TERMFONT_NONE);
952: }
953: ps_pletter(p, p->engine.ps.last);
954: p->engine.ps.last = '\0';
955: }
956:
1.29 kristaps 957: if ( ! (PS_INLINE & p->engine.ps.flags))
1.9 kristaps 958: return;
959:
960: ps_pclose(p);
961: }
962:
963:
964: static void
1.8 kristaps 965: ps_letter(struct termp *p, char c)
966: {
967: char cc;
1.9 kristaps 968:
969: /*
970: * State machine dictates whether to buffer the last character
971: * or not. Basically, encoded words are detected by checking if
972: * we're an "8" and switching on the buffer. Then we put "8" in
973: * our buffer, and on the next charater, flush both character
974: * and buffer. Thus, "regular" words are detected by having a
975: * regular character and a regular buffer character.
976: */
977:
1.8 kristaps 978: if ('\0' == p->engine.ps.last) {
979: assert(8 != c);
980: p->engine.ps.last = c;
981: return;
982: } else if (8 == p->engine.ps.last) {
983: assert(8 != c);
1.9 kristaps 984: p->engine.ps.last = '\0';
1.8 kristaps 985: } else if (8 == c) {
986: assert(8 != p->engine.ps.last);
1.9 kristaps 987: if ('_' == p->engine.ps.last) {
988: if (p->engine.ps.lastf != TERMFONT_UNDER) {
989: ps_pclose(p);
990: ps_setfont(p, TERMFONT_UNDER);
991: }
992: } else if (p->engine.ps.lastf != TERMFONT_BOLD) {
993: ps_pclose(p);
994: ps_setfont(p, TERMFONT_BOLD);
995: }
1.8 kristaps 996: p->engine.ps.last = c;
997: return;
998: } else {
1.9 kristaps 999: if (p->engine.ps.lastf != TERMFONT_NONE) {
1000: ps_pclose(p);
1001: ps_setfont(p, TERMFONT_NONE);
1002: }
1.8 kristaps 1003: cc = p->engine.ps.last;
1004: p->engine.ps.last = c;
1005: c = cc;
1006: }
1007:
1.9 kristaps 1008: ps_pletter(p, c);
1.8 kristaps 1009: }
1010:
1011:
1012: static void
1.2 kristaps 1013: ps_advance(struct termp *p, size_t len)
1014: {
1015:
1.9 kristaps 1016: /*
1017: * Advance some spaces. This can probably be made smarter,
1018: * i.e., to have multiple space-separated words in the same
1019: * scope, but this is easier: just close out the current scope
1020: * and readjust our column settings.
1021: */
1.8 kristaps 1022:
1.9 kristaps 1023: ps_fclose(p);
1.14 kristaps 1024: p->engine.ps.pscol += len;
1.2 kristaps 1025: }
1026:
1027:
1028: static void
1029: ps_endline(struct termp *p)
1030: {
1.8 kristaps 1031:
1.9 kristaps 1032: /* Close out any scopes we have open: we're at eoln. */
1033:
1034: ps_fclose(p);
1.2 kristaps 1035:
1.9 kristaps 1036: /*
1037: * If we're in the margin, don't try to recalculate our current
1038: * row. XXX: if the column tries to be fancy with multiple
1039: * lines, we'll do nasty stuff.
1040: */
1.2 kristaps 1041:
1.29 kristaps 1042: if (PS_MARGINS & p->engine.ps.flags)
1043: return;
1044:
1045: /* Left-justify. */
1046:
1047: p->engine.ps.pscol = p->engine.ps.left;
1048:
1049: /* If we haven't printed anything, return. */
1050:
1051: if (PS_NEWPAGE & p->engine.ps.flags)
1.2 kristaps 1052: return;
1053:
1.9 kristaps 1054: /*
1055: * Put us down a line. If we're at the page bottom, spit out a
1056: * showpage and restart our row.
1057: */
1058:
1.16 kristaps 1059: if (p->engine.ps.psrow >= p->engine.ps.lineheight +
1060: p->engine.ps.bottom) {
1061: p->engine.ps.psrow -= p->engine.ps.lineheight;
1.2 kristaps 1062: return;
1063: }
1064:
1.37 kristaps 1065: ps_closepage(p);
1.1 kristaps 1066: }
1.9 kristaps 1067:
1068:
1069: static void
1070: ps_setfont(struct termp *p, enum termfont f)
1071: {
1072:
1.16 kristaps 1073: assert(f < TERMFONT__MAX);
1.32 kristaps 1074: p->engine.ps.lastf = f;
1075:
1076: /*
1077: * If we're still at the top of the page, let the font-setting
1078: * be delayed until we actually have stuff to print.
1079: */
1080:
1081: if (PS_NEWPAGE & p->engine.ps.flags)
1082: return;
1083:
1.37 kristaps 1084: if (TERMTYPE_PS == p->type)
1085: ps_printf(p, "/%s %zu selectfont\n",
1086: fonts[(int)f].name,
1087: p->engine.ps.scale);
1088: else
1089: ps_printf(p, "/F%d %zu Tf\n",
1090: (int)f,
1091: p->engine.ps.scale);
1.9 kristaps 1092: }
1093:
1.11 kristaps 1094:
1.12 kristaps 1095: /* ARGSUSED */
1.11 kristaps 1096: static size_t
1097: ps_width(const struct termp *p, char c)
1098: {
1099:
1.14 kristaps 1100: if (c <= 32 || c - 32 >= MAXCHAR)
1.36 kristaps 1101: return((size_t)fonts[(int)TERMFONT_NONE].gly[0].wx);
1.14 kristaps 1102:
1103: c -= 32;
1.36 kristaps 1104: return((size_t)fonts[(int)TERMFONT_NONE].gly[(int)c].wx);
1.11 kristaps 1105: }
1.19 kristaps 1106:
1107:
1.20 kristaps 1108: static double
1.19 kristaps 1109: ps_hspan(const struct termp *p, const struct roffsu *su)
1110: {
1111: double r;
1112:
1113: /*
1114: * All of these measurements are derived by converting from the
1.21 kristaps 1115: * native measurement to AFM units.
1.19 kristaps 1116: */
1117:
1118: switch (su->unit) {
1119: case (SCALE_CM):
1.21 kristaps 1120: r = PNT2AFM(p, su->scale * 28.34);
1.19 kristaps 1121: break;
1122: case (SCALE_IN):
1.21 kristaps 1123: r = PNT2AFM(p, su->scale * 72);
1.19 kristaps 1124: break;
1125: case (SCALE_PC):
1.21 kristaps 1126: r = PNT2AFM(p, su->scale * 12);
1.19 kristaps 1127: break;
1128: case (SCALE_PT):
1.21 kristaps 1129: r = PNT2AFM(p, su->scale * 100);
1.19 kristaps 1130: break;
1131: case (SCALE_EM):
1.36 kristaps 1132: r = su->scale *
1.19 kristaps 1133: fonts[(int)TERMFONT_NONE].gly[109 - 32].wx;
1134: break;
1135: case (SCALE_MM):
1.21 kristaps 1136: r = PNT2AFM(p, su->scale * 2.834);
1.19 kristaps 1137: break;
1138: case (SCALE_EN):
1.36 kristaps 1139: r = su->scale *
1.19 kristaps 1140: fonts[(int)TERMFONT_NONE].gly[110 - 32].wx;
1141: break;
1142: case (SCALE_VS):
1143: r = su->scale * p->engine.ps.lineheight;
1144: break;
1145: default:
1146: r = su->scale;
1147: break;
1148: }
1149:
1.20 kristaps 1150: return(r);
1.19 kristaps 1151: }
1152:
CVSweb