Annotation of mandoc/term_ps.c, Revision 1.38
1.38 ! kristaps 1: /* $Id: term_ps.c,v 1.37 2010/07/25 11:44:31 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 *);
387:
388:
389: void *
390: pdf_alloc(char *outopts)
391: {
392: struct termp *p;
393:
1.38 ! kristaps 394: if (NULL != (p = pspdf_alloc(outopts)))
! 395: p->type = TERMTYPE_PDF;
1.37 kristaps 396:
397: return(p);
398: }
1.2 kristaps 399:
400:
1.1 kristaps 401: void *
1.17 kristaps 402: ps_alloc(char *outopts)
1.1 kristaps 403: {
404: struct termp *p;
1.37 kristaps 405:
1.38 ! kristaps 406: if (NULL != (p = pspdf_alloc(outopts)))
! 407: p->type = TERMTYPE_PS;
1.37 kristaps 408:
409: return(p);
410: }
411:
412:
413: static struct termp *
414: pspdf_alloc(char *outopts)
415: {
416: struct termp *p;
1.28 kristaps 417: size_t pagex, pagey, marginx, marginy, lineheight;
1.17 kristaps 418: const char *toks[2];
1.25 kristaps 419: const char *pp;
1.17 kristaps 420: char *v;
1.1 kristaps 421:
422: if (NULL == (p = term_alloc(TERMENC_ASCII)))
423: return(NULL);
424:
1.19 kristaps 425: p->advance = ps_advance;
1.2 kristaps 426: p->begin = ps_begin;
427: p->end = ps_end;
428: p->endline = ps_endline;
1.19 kristaps 429: p->hspan = ps_hspan;
430: p->letter = ps_letter;
1.11 kristaps 431: p->width = ps_width;
1.21 kristaps 432:
1.17 kristaps 433: toks[0] = "paper";
434: toks[1] = NULL;
435:
1.25 kristaps 436: pp = NULL;
1.19 kristaps 437:
1.17 kristaps 438: while (outopts && *outopts)
439: switch (getsubopt(&outopts, UNCONST(toks), &v)) {
440: case (0):
1.25 kristaps 441: pp = v;
1.17 kristaps 442: break;
443: default:
444: break;
445: }
1.16 kristaps 446:
1.25 kristaps 447: /* Default to US letter (millimetres). */
448:
1.31 kristaps 449: pagex = 216;
450: pagey = 279;
1.25 kristaps 451:
452: /*
453: * The ISO-269 paper sizes can be calculated automatically, but
454: * it would require bringing in -lm for pow() and I'd rather not
455: * do that. So just do it the easy way for now. Since this
456: * only happens once, I'm not terribly concerned.
457: */
458:
459: if (pp && strcasecmp(pp, "letter")) {
460: if (0 == strcasecmp(pp, "a3")) {
461: pagex = 297;
462: pagey = 420;
463: } else if (0 == strcasecmp(pp, "a4")) {
464: pagex = 210;
465: pagey = 297;
466: } else if (0 == strcasecmp(pp, "a5")) {
467: pagex = 148;
468: pagey = 210;
469: } else if (0 == strcasecmp(pp, "legal")) {
470: pagex = 216;
471: pagey = 356;
472: } else if (2 != sscanf(pp, "%zux%zu", &pagex, &pagey))
473: fprintf(stderr, "%s: Unknown paper\n", pp);
1.27 kristaps 474: } else if (NULL == pp)
475: pp = "letter";
476:
477: /*
478: * This MUST be defined before any PNT2AFM or AFM2PNT
479: * calculations occur.
480: */
481:
482: p->engine.ps.scale = 11;
483:
1.25 kristaps 484: /* Remember millimetres -> AFM units. */
485:
486: pagex = PNT2AFM(p, ((double)pagex * 2.834));
487: pagey = PNT2AFM(p, ((double)pagey * 2.834));
488:
1.28 kristaps 489: /* Margins are 1/9 the page x and y. */
1.27 kristaps 490:
1.29 kristaps 491: marginx = /* LINTED */
492: (size_t)((double)pagex / 9.0);
493: marginy = /* LINTED */
494: (size_t)((double)pagey / 9.0);
1.27 kristaps 495:
1.31 kristaps 496: /* Line-height is 1.4em. */
497:
498: lineheight = PNT2AFM(p, ((double)p->engine.ps.scale * 1.4));
1.16 kristaps 499:
500: p->engine.ps.width = pagex;
501: p->engine.ps.height = pagey;
1.28 kristaps 502: p->engine.ps.header = pagey - (marginy / 2) - (lineheight / 2);
503: p->engine.ps.top = pagey - marginy;
504: p->engine.ps.footer = (marginy / 2) - (lineheight / 2);
505: p->engine.ps.bottom = marginy;
506: p->engine.ps.left = marginx;
1.18 kristaps 507: p->engine.ps.lineheight = lineheight;
1.16 kristaps 508:
1.28 kristaps 509: p->defrmargin = pagex - (marginx * 2);
1.1 kristaps 510: return(p);
511: }
512:
513:
514: void
1.37 kristaps 515: pspdf_free(void *arg)
1.1 kristaps 516: {
1.4 kristaps 517: struct termp *p;
518:
519: p = (struct termp *)arg;
520:
521: if (p->engine.ps.psmarg)
522: free(p->engine.ps.psmarg);
523:
524: term_free(p);
525: }
526:
527:
528: static void
529: ps_printf(struct termp *p, const char *fmt, ...)
530: {
531: va_list ap;
1.37 kristaps 532: int pos, len;
1.4 kristaps 533:
534: va_start(ap, fmt);
535:
536: /*
537: * If we're running in regular mode, then pipe directly into
538: * vprintf(). If we're processing margins, then push the data
539: * into our growable margin buffer.
540: */
1.1 kristaps 541:
1.29 kristaps 542: if ( ! (PS_MARGINS & p->engine.ps.flags)) {
1.37 kristaps 543: len = vprintf(fmt, ap);
1.4 kristaps 544: va_end(ap);
1.37 kristaps 545: p->engine.ps.pdfbytes += /* LINTED */
546: len < 0 ? 0 : (size_t)len;
1.4 kristaps 547: return;
548: }
549:
550: /*
551: * XXX: I assume that the in-margin print won't exceed
552: * PS_BUFSLOP (128 bytes), which is reasonable but still an
553: * assumption that will cause pukeage if it's not the case.
554: */
555:
556: PS_GROWBUF(p, PS_BUFSLOP);
557:
558: pos = (int)p->engine.ps.psmargcur;
1.37 kristaps 559: len = vsnprintf(&p->engine.ps.psmarg[pos], PS_BUFSLOP, fmt, ap);
1.5 kristaps 560:
561: va_end(ap);
1.37 kristaps 562:
563: p->engine.ps.psmargcur = strlen(p->engine.ps.psmarg);
564: p->engine.ps.pdfbytes += /* LINTED */
565: len < 0 ? 0 : (size_t)len;
1.4 kristaps 566: }
567:
568:
569: static void
570: ps_putchar(struct termp *p, char c)
571: {
572: int pos;
573:
574: /* See ps_printf(). */
575:
1.29 kristaps 576: if ( ! (PS_MARGINS & p->engine.ps.flags)) {
1.4 kristaps 577: putchar(c);
1.37 kristaps 578: p->engine.ps.pdfbytes++;
1.4 kristaps 579: return;
580: }
581:
582: PS_GROWBUF(p, 2);
583:
584: pos = (int)p->engine.ps.psmargcur++;
1.5 kristaps 585: p->engine.ps.psmarg[pos++] = c;
1.4 kristaps 586: p->engine.ps.psmarg[pos] = '\0';
1.2 kristaps 587: }
588:
589:
1.37 kristaps 590: static void
591: ps_closepage(struct termp *p)
592: {
593: int i;
1.38 ! kristaps 594: size_t len, base;
! 595:
! 596: /*
! 597: * Close out a page that we've already flushed to output. In
! 598: * PostScript, we simply note that the page must be showed. In
! 599: * PDF, we must now create the Length, Resource, and Page node
! 600: * for the page contents.
! 601: */
1.37 kristaps 602:
603: assert(p->engine.ps.psmarg && p->engine.ps.psmarg[0]);
604: ps_printf(p, "%s", p->engine.ps.psmarg);
605:
1.38 ! kristaps 606: if (TERMTYPE_PS != p->type) {
1.37 kristaps 607: ps_printf(p, "ET\n");
1.38 ! kristaps 608:
1.37 kristaps 609: len = p->engine.ps.pdfbytes - p->engine.ps.pdflastpg;
1.38 ! kristaps 610: base = p->engine.ps.pages * 4 + p->engine.ps.pdfbody;
! 611:
! 612: ps_printf(p, "endstream\nendobj\n");
! 613:
! 614: /* Length of content. */
! 615: ps_printf(p, "%zu 0 obj\n", base + 1);
! 616: ps_printf(p, "%zu\nendobj\n", len);
! 617:
! 618: /* Resource for content. */
! 619: ps_printf(p, "%zu 0 obj\n", base + 2);
! 620: ps_printf(p, "<<\n/ProcSet [/PDF /Text]\n");
1.37 kristaps 621: ps_printf(p, "/Font <<\n");
1.38 ! kristaps 622: for (i = 0; i < TERMFONT__MAX; i++)
1.37 kristaps 623: ps_printf(p, "/F%d %d 0 R\n", i, 3 + i);
1.38 ! kristaps 624: ps_printf(p, ">>\n>>\n");
! 625:
! 626: /* Page node. */
! 627: ps_printf(p, "%zu 0 obj\n<<\n", base + 3);
1.37 kristaps 628: ps_printf(p, "/Type /Page\n");
629: ps_printf(p, "/Parent 2 0 R\n");
1.38 ! kristaps 630: ps_printf(p, "/Resources %zu 0 R\n", base + 2);
! 631: ps_printf(p, "/Contents %zu 0 R\n", base);
! 632: ps_printf(p, ">>\nendobj\n");
! 633: } else
! 634: ps_printf(p, "showpage\n");
1.37 kristaps 635:
636: p->engine.ps.pages++;
637: p->engine.ps.psrow = p->engine.ps.top;
638: assert( ! (PS_NEWPAGE & p->engine.ps.flags));
639: p->engine.ps.flags |= PS_NEWPAGE;
640: }
641:
642:
1.3 kristaps 643: /* ARGSUSED */
1.2 kristaps 644: static void
645: ps_end(struct termp *p)
646: {
1.38 ! kristaps 647: size_t i, xref, base;
1.2 kristaps 648:
1.4 kristaps 649: /*
650: * At the end of the file, do one last showpage. This is the
651: * same behaviour as groff(1) and works for multiple pages as
652: * well as just one.
653: */
654:
1.30 kristaps 655: if ( ! (PS_NEWPAGE & p->engine.ps.flags)) {
656: assert(0 == p->engine.ps.flags);
657: assert('\0' == p->engine.ps.last);
1.37 kristaps 658: ps_closepage(p);
1.30 kristaps 659: }
1.16 kristaps 660:
1.37 kristaps 661: if (TERMTYPE_PS == p->type) {
662: ps_printf(p, "%%%%Trailer\n");
663: ps_printf(p, "%%%%Pages: %zu\n", p->engine.ps.pages);
664: ps_printf(p, "%%%%EOF\n");
665: return;
666: }
667:
1.38 ! kristaps 668: ps_printf(p, "2 0 obj\n<<\n/Type /Pages\n");
1.37 kristaps 669: ps_printf(p, "/MediaBox [0 0 %zu %zu]\n",
670: (size_t)AFM2PNT(p, p->engine.ps.width),
671: (size_t)AFM2PNT(p, p->engine.ps.height));
672:
673: ps_printf(p, "/Count %zu\n", p->engine.ps.pages);
674: ps_printf(p, "/Kids [");
675:
676: for (i = 0; i < p->engine.ps.pages; i++)
1.38 ! kristaps 677: ps_printf(p, " %zu 0 R", i * 4 +
! 678: p->engine.ps.pdfbody + 3);
! 679:
! 680: base = (p->engine.ps.pages - 1) * 4 +
! 681: p->engine.ps.pdfbody + 4;
! 682:
! 683: ps_printf(p, "]\n>>\nendobj\n");
! 684: ps_printf(p, "%zu 0 obj\n", base);
1.37 kristaps 685: ps_printf(p, "<<\n");
686: ps_printf(p, "/Type /Catalog\n");
687: ps_printf(p, "/Pages 2 0 R\n");
688: ps_printf(p, ">>\n");
689: xref = p->engine.ps.pdfbytes;
690: ps_printf(p, "xref\n");
1.38 ! kristaps 691: ps_printf(p, "0 %zu\n", base + 1);
1.37 kristaps 692: ps_printf(p, "0000000000 65535 f\n");
693: ps_printf(p, "trailer\n");
694: ps_printf(p, "<<\n");
1.38 ! kristaps 695: ps_printf(p, "/Size %zu\n", base + 1);
! 696: ps_printf(p, "/Root %zu 0 R\n", base);
1.37 kristaps 697: ps_printf(p, "/Info 1 0 R\n");
698: ps_printf(p, ">>\n");
699: ps_printf(p, "startxref\n");
700: ps_printf(p, "%zu\n", xref);
701: ps_printf(p, "%%%%EOF\n");
1.2 kristaps 702: }
703:
704:
705: static void
706: ps_begin(struct termp *p)
707: {
1.13 kristaps 708: time_t t;
1.16 kristaps 709: int i;
1.2 kristaps 710:
1.9 kristaps 711: /*
712: * Print margins into margin buffer. Nothing gets output to the
713: * screen yet, so we don't need to initialise the primary state.
1.2 kristaps 714: */
715:
1.4 kristaps 716: if (p->engine.ps.psmarg) {
717: assert(p->engine.ps.psmargsz);
718: p->engine.ps.psmarg[0] = '\0';
719: }
720:
1.37 kristaps 721: p->engine.ps.pdfbytes = 0;
1.4 kristaps 722: p->engine.ps.psmargcur = 0;
1.29 kristaps 723: p->engine.ps.flags = PS_MARGINS;
1.16 kristaps 724: p->engine.ps.pscol = p->engine.ps.left;
725: p->engine.ps.psrow = p->engine.ps.header;
1.4 kristaps 726:
1.9 kristaps 727: ps_setfont(p, TERMFONT_NONE);
1.4 kristaps 728:
729: (*p->headf)(p, p->argf);
730: (*p->endline)(p);
731:
1.16 kristaps 732: p->engine.ps.pscol = p->engine.ps.left;
733: p->engine.ps.psrow = p->engine.ps.footer;
1.4 kristaps 734:
735: (*p->footf)(p, p->argf);
736: (*p->endline)(p);
737:
1.29 kristaps 738: p->engine.ps.flags &= ~PS_MARGINS;
1.9 kristaps 739:
1.29 kristaps 740: assert(0 == p->engine.ps.flags);
1.9 kristaps 741: assert(p->engine.ps.psmarg);
742: assert('\0' != p->engine.ps.psmarg[0]);
743:
744: /*
745: * Print header and initialise page state. Following this,
746: * stuff gets printed to the screen, so make sure we're sane.
747: */
1.4 kristaps 748:
1.13 kristaps 749: t = time(NULL);
750:
1.37 kristaps 751: if (TERMTYPE_PS == p->type) {
752: ps_printf(p, "%%!PS-Adobe-3.0\n");
753: ps_printf(p, "%%%%Creator: mandoc-%s\n", VERSION);
754: ps_printf(p, "%%%%CreationDate: %s", ctime(&t));
755: ps_printf(p, "%%%%DocumentData: Clean7Bit\n");
756: ps_printf(p, "%%%%Orientation: Portrait\n");
757: ps_printf(p, "%%%%Pages: (atend)\n");
758: ps_printf(p, "%%%%PageOrder: Ascend\n");
759: ps_printf(p, "%%%%DocumentMedia: "
760: "Default %zu %zu 0 () ()\n",
761: (size_t)AFM2PNT(p, p->engine.ps.width),
762: (size_t)AFM2PNT(p, p->engine.ps.height));
763: ps_printf(p, "%%%%DocumentNeededResources: font");
764:
765: for (i = 0; i < (int)TERMFONT__MAX; i++)
766: ps_printf(p, " %s", fonts[i].name);
767:
768: ps_printf(p, "\n%%%%EndComments\n");
769: } else {
770: ps_printf(p, "%%PDF-1.1\n");
771: ps_printf(p, "1 0 obj\n");
772: ps_printf(p, "<<\n");
773: ps_printf(p, "/Creator mandoc-%s\n", VERSION);
774: ps_printf(p, ">>\n");
775: ps_printf(p, "endobj\n");
776:
777: for (i = 0; i < (int)TERMFONT__MAX; i++) {
778: ps_printf(p, "%d 0 obj\n", i + 3);
779: ps_printf(p, "<<\n");
780: ps_printf(p, "/Type /Font\n");
781: ps_printf(p, "/Subtype /Type1\n");
782: ps_printf(p, "/Name /F%zu\n", i);
783: ps_printf(p, "/BaseFont /%s\n", fonts[i].name);
784: ps_printf(p, ">>\n");
785: }
786: }
1.16 kristaps 787:
1.37 kristaps 788: p->engine.ps.pdfbody = (size_t)TERMFONT__MAX + 3;
1.16 kristaps 789: p->engine.ps.pscol = p->engine.ps.left;
790: p->engine.ps.psrow = p->engine.ps.top;
1.29 kristaps 791: p->engine.ps.flags |= PS_NEWPAGE;
1.33 kristaps 792: ps_setfont(p, TERMFONT_NONE);
1.2 kristaps 793: }
794:
795:
796: static void
1.13 kristaps 797: ps_pletter(struct termp *p, int c)
1.2 kristaps 798: {
1.14 kristaps 799: int f;
1.32 kristaps 800:
1.9 kristaps 801: /*
1.32 kristaps 802: * If we haven't opened a page context, then output that we're
803: * in a new page and make sure the font is correctly set.
1.9 kristaps 804: */
805:
1.32 kristaps 806: if (PS_NEWPAGE & p->engine.ps.flags) {
1.37 kristaps 807: if (TERMTYPE_PS == p->type) {
808: ps_printf(p, "%%%%Page: %zu %zu\n",
809: p->engine.ps.pages + 1,
810: p->engine.ps.pages + 1);
811: ps_printf(p, "/%s %zu selectfont\n",
812: fonts[(int)p->engine.ps.lastf].name,
813: p->engine.ps.scale);
814: } else {
815: ps_printf(p, "%zu 0 obj\n",
816: p->engine.ps.pdfbody +
1.38 ! kristaps 817: p->engine.ps.pages * 4);
1.37 kristaps 818: ps_printf(p, "<<\n");
819: ps_printf(p, "/Length %zu 0 R\n",
1.38 ! kristaps 820: p->engine.ps.pdfbody + 1 +
! 821: p->engine.ps.pages * 4);
1.37 kristaps 822: ps_printf(p, ">>\nstream\n");
823: }
824: p->engine.ps.pdflastpg = p->engine.ps.pdfbytes;
1.32 kristaps 825: p->engine.ps.flags &= ~PS_NEWPAGE;
826: }
827:
828: /*
829: * If we're not in a PostScript "word" context, then open one
830: * now at the current cursor.
831: */
1.30 kristaps 832:
1.29 kristaps 833: if ( ! (PS_INLINE & p->engine.ps.flags)) {
1.37 kristaps 834: if (TERMTYPE_PS != p->type) {
835: ps_printf(p, "BT\n/F%d %zu Tf\n",
836: (int)p->engine.ps.lastf,
837: p->engine.ps.scale);
838: ps_printf(p, "%.3f %.3f Td\n(",
839: AFM2PNT(p, p->engine.ps.pscol),
840: AFM2PNT(p, p->engine.ps.psrow));
841: } else
842: ps_printf(p, "%.3f %.3f moveto\n(",
843: AFM2PNT(p, p->engine.ps.pscol),
844: AFM2PNT(p, p->engine.ps.psrow));
1.29 kristaps 845: p->engine.ps.flags |= PS_INLINE;
1.2 kristaps 846: }
847:
1.29 kristaps 848: assert( ! (PS_NEWPAGE & p->engine.ps.flags));
849:
1.2 kristaps 850: /*
851: * We need to escape these characters as per the PostScript
852: * specification. We would also escape non-graphable characters
853: * (like tabs), but none of them would get to this point and
854: * it's superfluous to abort() on them.
855: */
856:
857: switch (c) {
858: case ('('):
859: /* FALLTHROUGH */
860: case (')'):
861: /* FALLTHROUGH */
862: case ('\\'):
1.4 kristaps 863: ps_putchar(p, '\\');
1.2 kristaps 864: break;
865: default:
866: break;
867: }
868:
869: /* Write the character and adjust where we are on the page. */
1.9 kristaps 870:
1.14 kristaps 871: f = (int)p->engine.ps.lastf;
1.13 kristaps 872:
1.14 kristaps 873: if (c <= 32 || (c - 32 > MAXCHAR)) {
1.13 kristaps 874: ps_putchar(p, ' ');
1.36 kristaps 875: p->engine.ps.pscol += (size_t)fonts[f].gly[0].wx;
1.13 kristaps 876: return;
877: }
878:
1.25 kristaps 879: ps_putchar(p, (char)c);
1.14 kristaps 880: c -= 32;
1.36 kristaps 881: p->engine.ps.pscol += (size_t)fonts[f].gly[c].wx;
1.2 kristaps 882: }
883:
884:
885: static void
1.9 kristaps 886: ps_pclose(struct termp *p)
887: {
888:
889: /*
890: * Spit out that we're exiting a word context (this is a
891: * "partial close" because we don't check the last-char buffer
892: * or anything).
893: */
894:
1.29 kristaps 895: if ( ! (PS_INLINE & p->engine.ps.flags))
1.9 kristaps 896: return;
897:
1.37 kristaps 898: if (TERMTYPE_PS != p->type) {
899: ps_printf(p, ") Tj\nET\n");
900: } else
901: ps_printf(p, ") show\n");
902:
1.29 kristaps 903: p->engine.ps.flags &= ~PS_INLINE;
1.9 kristaps 904: }
905:
906:
907: static void
908: ps_fclose(struct termp *p)
909: {
910:
911: /*
912: * Strong closure: if we have a last-char, spit it out after
913: * checking that we're in the right font mode. This will of
914: * course open a new scope, if applicable.
915: *
916: * Following this, close out any scope that's open.
917: */
918:
919: if ('\0' != p->engine.ps.last) {
920: if (p->engine.ps.lastf != TERMFONT_NONE) {
921: ps_pclose(p);
922: ps_setfont(p, TERMFONT_NONE);
923: }
924: ps_pletter(p, p->engine.ps.last);
925: p->engine.ps.last = '\0';
926: }
927:
1.29 kristaps 928: if ( ! (PS_INLINE & p->engine.ps.flags))
1.9 kristaps 929: return;
930:
931: ps_pclose(p);
932: }
933:
934:
935: static void
1.8 kristaps 936: ps_letter(struct termp *p, char c)
937: {
938: char cc;
1.9 kristaps 939:
940: /*
941: * State machine dictates whether to buffer the last character
942: * or not. Basically, encoded words are detected by checking if
943: * we're an "8" and switching on the buffer. Then we put "8" in
944: * our buffer, and on the next charater, flush both character
945: * and buffer. Thus, "regular" words are detected by having a
946: * regular character and a regular buffer character.
947: */
948:
1.8 kristaps 949: if ('\0' == p->engine.ps.last) {
950: assert(8 != c);
951: p->engine.ps.last = c;
952: return;
953: } else if (8 == p->engine.ps.last) {
954: assert(8 != c);
1.9 kristaps 955: p->engine.ps.last = '\0';
1.8 kristaps 956: } else if (8 == c) {
957: assert(8 != p->engine.ps.last);
1.9 kristaps 958: if ('_' == p->engine.ps.last) {
959: if (p->engine.ps.lastf != TERMFONT_UNDER) {
960: ps_pclose(p);
961: ps_setfont(p, TERMFONT_UNDER);
962: }
963: } else if (p->engine.ps.lastf != TERMFONT_BOLD) {
964: ps_pclose(p);
965: ps_setfont(p, TERMFONT_BOLD);
966: }
1.8 kristaps 967: p->engine.ps.last = c;
968: return;
969: } else {
1.9 kristaps 970: if (p->engine.ps.lastf != TERMFONT_NONE) {
971: ps_pclose(p);
972: ps_setfont(p, TERMFONT_NONE);
973: }
1.8 kristaps 974: cc = p->engine.ps.last;
975: p->engine.ps.last = c;
976: c = cc;
977: }
978:
1.9 kristaps 979: ps_pletter(p, c);
1.8 kristaps 980: }
981:
982:
983: static void
1.2 kristaps 984: ps_advance(struct termp *p, size_t len)
985: {
986:
1.9 kristaps 987: /*
988: * Advance some spaces. This can probably be made smarter,
989: * i.e., to have multiple space-separated words in the same
990: * scope, but this is easier: just close out the current scope
991: * and readjust our column settings.
992: */
1.8 kristaps 993:
1.9 kristaps 994: ps_fclose(p);
1.14 kristaps 995: p->engine.ps.pscol += len;
1.2 kristaps 996: }
997:
998:
999: static void
1000: ps_endline(struct termp *p)
1001: {
1.8 kristaps 1002:
1.9 kristaps 1003: /* Close out any scopes we have open: we're at eoln. */
1004:
1005: ps_fclose(p);
1.2 kristaps 1006:
1.9 kristaps 1007: /*
1008: * If we're in the margin, don't try to recalculate our current
1009: * row. XXX: if the column tries to be fancy with multiple
1010: * lines, we'll do nasty stuff.
1011: */
1.2 kristaps 1012:
1.29 kristaps 1013: if (PS_MARGINS & p->engine.ps.flags)
1014: return;
1015:
1016: /* Left-justify. */
1017:
1018: p->engine.ps.pscol = p->engine.ps.left;
1019:
1020: /* If we haven't printed anything, return. */
1021:
1022: if (PS_NEWPAGE & p->engine.ps.flags)
1.2 kristaps 1023: return;
1024:
1.9 kristaps 1025: /*
1026: * Put us down a line. If we're at the page bottom, spit out a
1027: * showpage and restart our row.
1028: */
1029:
1.16 kristaps 1030: if (p->engine.ps.psrow >= p->engine.ps.lineheight +
1031: p->engine.ps.bottom) {
1032: p->engine.ps.psrow -= p->engine.ps.lineheight;
1.2 kristaps 1033: return;
1034: }
1035:
1.37 kristaps 1036: ps_closepage(p);
1.1 kristaps 1037: }
1.9 kristaps 1038:
1039:
1040: static void
1041: ps_setfont(struct termp *p, enum termfont f)
1042: {
1043:
1.16 kristaps 1044: assert(f < TERMFONT__MAX);
1.32 kristaps 1045: p->engine.ps.lastf = f;
1046:
1047: /*
1048: * If we're still at the top of the page, let the font-setting
1049: * be delayed until we actually have stuff to print.
1050: */
1051:
1052: if (PS_NEWPAGE & p->engine.ps.flags)
1053: return;
1054:
1.37 kristaps 1055: if (TERMTYPE_PS == p->type)
1056: ps_printf(p, "/%s %zu selectfont\n",
1057: fonts[(int)f].name,
1058: p->engine.ps.scale);
1059: else
1060: ps_printf(p, "/F%d %zu Tf\n",
1061: (int)f,
1062: p->engine.ps.scale);
1.9 kristaps 1063: }
1064:
1.11 kristaps 1065:
1.12 kristaps 1066: /* ARGSUSED */
1.11 kristaps 1067: static size_t
1068: ps_width(const struct termp *p, char c)
1069: {
1070:
1.14 kristaps 1071: if (c <= 32 || c - 32 >= MAXCHAR)
1.36 kristaps 1072: return((size_t)fonts[(int)TERMFONT_NONE].gly[0].wx);
1.14 kristaps 1073:
1074: c -= 32;
1.36 kristaps 1075: return((size_t)fonts[(int)TERMFONT_NONE].gly[(int)c].wx);
1.11 kristaps 1076: }
1.19 kristaps 1077:
1078:
1.20 kristaps 1079: static double
1.19 kristaps 1080: ps_hspan(const struct termp *p, const struct roffsu *su)
1081: {
1082: double r;
1083:
1084: /*
1085: * All of these measurements are derived by converting from the
1.21 kristaps 1086: * native measurement to AFM units.
1.19 kristaps 1087: */
1088:
1089: switch (su->unit) {
1090: case (SCALE_CM):
1.21 kristaps 1091: r = PNT2AFM(p, su->scale * 28.34);
1.19 kristaps 1092: break;
1093: case (SCALE_IN):
1.21 kristaps 1094: r = PNT2AFM(p, su->scale * 72);
1.19 kristaps 1095: break;
1096: case (SCALE_PC):
1.21 kristaps 1097: r = PNT2AFM(p, su->scale * 12);
1.19 kristaps 1098: break;
1099: case (SCALE_PT):
1.21 kristaps 1100: r = PNT2AFM(p, su->scale * 100);
1.19 kristaps 1101: break;
1102: case (SCALE_EM):
1.36 kristaps 1103: r = su->scale *
1.19 kristaps 1104: fonts[(int)TERMFONT_NONE].gly[109 - 32].wx;
1105: break;
1106: case (SCALE_MM):
1.21 kristaps 1107: r = PNT2AFM(p, su->scale * 2.834);
1.19 kristaps 1108: break;
1109: case (SCALE_EN):
1.36 kristaps 1110: r = su->scale *
1.19 kristaps 1111: fonts[(int)TERMFONT_NONE].gly[110 - 32].wx;
1112: break;
1113: case (SCALE_VS):
1114: r = su->scale * p->engine.ps.lineheight;
1115: break;
1116: default:
1117: r = su->scale;
1118: break;
1119: }
1120:
1.20 kristaps 1121: return(r);
1.19 kristaps 1122: }
1123:
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