Annotation of mandoc/term_ps.c, Revision 1.37
1.37 ! kristaps 1: /* $Id: term_ps.c,v 1.36 2010/07/21 08:24:39 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:
! 394: if (NULL == (p = pspdf_alloc(outopts)))
! 395: return(p);
! 396:
! 397: p->type = TERMTYPE_PDF;
! 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:
! 407: if (NULL == (p = pspdf_alloc(outopts)))
! 408: return(p);
! 409:
! 410: p->type = TERMTYPE_PS;
! 411: return(p);
! 412: }
! 413:
! 414:
! 415: static struct termp *
! 416: pspdf_alloc(char *outopts)
! 417: {
! 418: struct termp *p;
1.28 kristaps 419: size_t pagex, pagey, marginx, marginy, lineheight;
1.17 kristaps 420: const char *toks[2];
1.25 kristaps 421: const char *pp;
1.17 kristaps 422: char *v;
1.1 kristaps 423:
424: if (NULL == (p = term_alloc(TERMENC_ASCII)))
425: return(NULL);
426:
1.19 kristaps 427: p->advance = ps_advance;
1.2 kristaps 428: p->begin = ps_begin;
429: p->end = ps_end;
430: p->endline = ps_endline;
1.19 kristaps 431: p->hspan = ps_hspan;
432: p->letter = ps_letter;
1.11 kristaps 433: p->width = ps_width;
1.21 kristaps 434:
1.17 kristaps 435: toks[0] = "paper";
436: toks[1] = NULL;
437:
1.25 kristaps 438: pp = NULL;
1.19 kristaps 439:
1.17 kristaps 440: while (outopts && *outopts)
441: switch (getsubopt(&outopts, UNCONST(toks), &v)) {
442: case (0):
1.25 kristaps 443: pp = v;
1.17 kristaps 444: break;
445: default:
446: break;
447: }
1.16 kristaps 448:
1.25 kristaps 449: /* Default to US letter (millimetres). */
450:
1.31 kristaps 451: pagex = 216;
452: pagey = 279;
1.25 kristaps 453:
454: /*
455: * The ISO-269 paper sizes can be calculated automatically, but
456: * it would require bringing in -lm for pow() and I'd rather not
457: * do that. So just do it the easy way for now. Since this
458: * only happens once, I'm not terribly concerned.
459: */
460:
461: if (pp && strcasecmp(pp, "letter")) {
462: if (0 == strcasecmp(pp, "a3")) {
463: pagex = 297;
464: pagey = 420;
465: } else if (0 == strcasecmp(pp, "a4")) {
466: pagex = 210;
467: pagey = 297;
468: } else if (0 == strcasecmp(pp, "a5")) {
469: pagex = 148;
470: pagey = 210;
471: } else if (0 == strcasecmp(pp, "legal")) {
472: pagex = 216;
473: pagey = 356;
474: } else if (2 != sscanf(pp, "%zux%zu", &pagex, &pagey))
475: fprintf(stderr, "%s: Unknown paper\n", pp);
1.27 kristaps 476: } else if (NULL == pp)
477: pp = "letter";
478:
479: /*
480: * This MUST be defined before any PNT2AFM or AFM2PNT
481: * calculations occur.
482: */
483:
484: p->engine.ps.scale = 11;
485:
1.25 kristaps 486: /* Remember millimetres -> AFM units. */
487:
488: pagex = PNT2AFM(p, ((double)pagex * 2.834));
489: pagey = PNT2AFM(p, ((double)pagey * 2.834));
490:
1.28 kristaps 491: /* Margins are 1/9 the page x and y. */
1.27 kristaps 492:
1.29 kristaps 493: marginx = /* LINTED */
494: (size_t)((double)pagex / 9.0);
495: marginy = /* LINTED */
496: (size_t)((double)pagey / 9.0);
1.27 kristaps 497:
1.31 kristaps 498: /* Line-height is 1.4em. */
499:
500: lineheight = PNT2AFM(p, ((double)p->engine.ps.scale * 1.4));
1.16 kristaps 501:
502: p->engine.ps.width = pagex;
503: p->engine.ps.height = pagey;
1.28 kristaps 504: p->engine.ps.header = pagey - (marginy / 2) - (lineheight / 2);
505: p->engine.ps.top = pagey - marginy;
506: p->engine.ps.footer = (marginy / 2) - (lineheight / 2);
507: p->engine.ps.bottom = marginy;
508: p->engine.ps.left = marginx;
1.18 kristaps 509: p->engine.ps.lineheight = lineheight;
1.16 kristaps 510:
1.28 kristaps 511: p->defrmargin = pagex - (marginx * 2);
1.1 kristaps 512: return(p);
513: }
514:
515:
516: void
1.37 ! kristaps 517: pspdf_free(void *arg)
1.1 kristaps 518: {
1.4 kristaps 519: struct termp *p;
520:
521: p = (struct termp *)arg;
522:
523: if (p->engine.ps.psmarg)
524: free(p->engine.ps.psmarg);
525:
526: term_free(p);
527: }
528:
529:
530: static void
531: ps_printf(struct termp *p, const char *fmt, ...)
532: {
533: va_list ap;
1.37 ! kristaps 534: int pos, len;
1.4 kristaps 535:
536: va_start(ap, fmt);
537:
538: /*
539: * If we're running in regular mode, then pipe directly into
540: * vprintf(). If we're processing margins, then push the data
541: * into our growable margin buffer.
542: */
1.1 kristaps 543:
1.29 kristaps 544: if ( ! (PS_MARGINS & p->engine.ps.flags)) {
1.37 ! kristaps 545: len = vprintf(fmt, ap);
1.4 kristaps 546: va_end(ap);
1.37 ! kristaps 547: p->engine.ps.pdfbytes += /* LINTED */
! 548: len < 0 ? 0 : (size_t)len;
1.4 kristaps 549: return;
550: }
551:
552: /*
553: * XXX: I assume that the in-margin print won't exceed
554: * PS_BUFSLOP (128 bytes), which is reasonable but still an
555: * assumption that will cause pukeage if it's not the case.
556: */
557:
558: PS_GROWBUF(p, PS_BUFSLOP);
559:
560: pos = (int)p->engine.ps.psmargcur;
1.37 ! kristaps 561: len = vsnprintf(&p->engine.ps.psmarg[pos], PS_BUFSLOP, fmt, ap);
1.5 kristaps 562:
563: va_end(ap);
1.37 ! kristaps 564:
! 565: p->engine.ps.psmargcur = strlen(p->engine.ps.psmarg);
! 566: p->engine.ps.pdfbytes += /* LINTED */
! 567: len < 0 ? 0 : (size_t)len;
1.4 kristaps 568: }
569:
570:
571: static void
572: ps_putchar(struct termp *p, char c)
573: {
574: int pos;
575:
576: /* See ps_printf(). */
577:
1.29 kristaps 578: if ( ! (PS_MARGINS & p->engine.ps.flags)) {
1.4 kristaps 579: putchar(c);
1.37 ! kristaps 580: p->engine.ps.pdfbytes++;
1.4 kristaps 581: return;
582: }
583:
584: PS_GROWBUF(p, 2);
585:
586: pos = (int)p->engine.ps.psmargcur++;
1.5 kristaps 587: p->engine.ps.psmarg[pos++] = c;
1.4 kristaps 588: p->engine.ps.psmarg[pos] = '\0';
1.2 kristaps 589: }
590:
591:
1.37 ! kristaps 592: static void
! 593: ps_closepage(struct termp *p)
! 594: {
! 595: int i;
! 596: size_t len;
! 597:
! 598: assert(p->engine.ps.psmarg && p->engine.ps.psmarg[0]);
! 599: ps_printf(p, "%s", p->engine.ps.psmarg);
! 600:
! 601: if (TERMTYPE_PS == p->type) {
! 602: ps_printf(p, "showpage\n");
! 603: } else {
! 604: ps_printf(p, "ET\n");
! 605: len = p->engine.ps.pdfbytes - p->engine.ps.pdflastpg;
! 606: ps_printf(p, "endstream\n");
! 607: ps_printf(p, "endobj\n");
! 608: ps_printf(p, "%zu 0 obj\n",
! 609: p->engine.ps.pdfbody +
! 610: (p->engine.ps.pages + 1) * 4 + 1);
! 611: ps_printf(p, "%zu\n", len);
! 612: ps_printf(p, "endobj\n");
! 613: ps_printf(p, "%zu 0 obj\n",
! 614: p->engine.ps.pdfbody +
! 615: (p->engine.ps.pages + 1) * 4 + 2);
! 616: ps_printf(p, "<<\n");
! 617: ps_printf(p, "/ProcSet [/PDF /Text]\n");
! 618: ps_printf(p, "/Font <<\n");
! 619: for (i = 0; i < (int)TERMFONT__MAX; i++)
! 620: ps_printf(p, "/F%d %d 0 R\n", i, 3 + i);
! 621: ps_printf(p, ">>\n");
! 622: ps_printf(p, ">>\n");
! 623: ps_printf(p, "%zu 0 obj\n",
! 624: p->engine.ps.pdfbody +
! 625: (p->engine.ps.pages + 1) * 4 + 3);
! 626: ps_printf(p, "<<\n");
! 627: ps_printf(p, "/Type /Page\n");
! 628: ps_printf(p, "/Parent 2 0 R\n");
! 629: ps_printf(p, "/Resources %zu 0 R\n",
! 630: p->engine.ps.pdfbody +
! 631: (p->engine.ps.pages + 1) * 4 + 2);
! 632: ps_printf(p, "/Contents %zu 0 R\n",
! 633: p->engine.ps.pdfbody +
! 634: (p->engine.ps.pages + 1) * 4);
! 635: ps_printf(p, ">>\n");
! 636: ps_printf(p, "endobj\n");
! 637: }
! 638:
! 639: p->engine.ps.pages++;
! 640: p->engine.ps.psrow = p->engine.ps.top;
! 641: assert( ! (PS_NEWPAGE & p->engine.ps.flags));
! 642: p->engine.ps.flags |= PS_NEWPAGE;
! 643: }
! 644:
! 645:
1.3 kristaps 646: /* ARGSUSED */
1.2 kristaps 647: static void
648: ps_end(struct termp *p)
649: {
1.37 ! kristaps 650: size_t i, xref;
1.2 kristaps 651:
1.4 kristaps 652: /*
653: * At the end of the file, do one last showpage. This is the
654: * same behaviour as groff(1) and works for multiple pages as
655: * well as just one.
656: */
657:
1.30 kristaps 658: if ( ! (PS_NEWPAGE & p->engine.ps.flags)) {
659: assert(0 == p->engine.ps.flags);
660: assert('\0' == p->engine.ps.last);
1.37 ! kristaps 661: ps_closepage(p);
1.30 kristaps 662: }
1.16 kristaps 663:
1.37 ! kristaps 664: if (TERMTYPE_PS == p->type) {
! 665: ps_printf(p, "%%%%Trailer\n");
! 666: ps_printf(p, "%%%%Pages: %zu\n", p->engine.ps.pages);
! 667: ps_printf(p, "%%%%EOF\n");
! 668: return;
! 669: }
! 670:
! 671: ps_printf(p, "2 0 obj\n");
! 672: ps_printf(p, "<<\n");
! 673: ps_printf(p, "/Type /Pages\n");
! 674: ps_printf(p, "/MediaBox [0 0 %zu %zu]\n",
! 675: (size_t)AFM2PNT(p, p->engine.ps.width),
! 676: (size_t)AFM2PNT(p, p->engine.ps.height));
! 677:
! 678: ps_printf(p, "/Count %zu\n", p->engine.ps.pages);
! 679: ps_printf(p, "/Kids [");
! 680:
! 681: for (i = 0; i < p->engine.ps.pages; i++)
! 682: ps_printf(p, " %zu 0 R",
! 683: p->engine.ps.pdfbody +
! 684: (i + 1) * 4 + 3);
! 685: ps_printf(p, "]\n");
! 686: ps_printf(p, ">>\n");
! 687: ps_printf(p, "endobj\n");
! 688: ps_printf(p, "%zu 0 obj\n",
! 689: p->engine.ps.pdfbody +
! 690: (p->engine.ps.pages * 4) + 4);
! 691: ps_printf(p, "<<\n");
! 692: ps_printf(p, "/Type /Catalog\n");
! 693: ps_printf(p, "/Pages 2 0 R\n");
! 694: ps_printf(p, ">>\n");
! 695: xref = p->engine.ps.pdfbytes;
! 696: ps_printf(p, "xref\n");
! 697: ps_printf(p, "0 %zu\n",
! 698: p->engine.ps.pdfbody +
! 699: (p->engine.ps.pages * 4) + 5);
! 700: ps_printf(p, "0000000000 65535 f\n");
! 701: ps_printf(p, "trailer\n");
! 702: ps_printf(p, "<<\n");
! 703: ps_printf(p, "/Size %zu\n",
! 704: p->engine.ps.pdfbody +
! 705: (p->engine.ps.pages * 4) + 5);
! 706: ps_printf(p, "/Root %zu 0 R\n",
! 707: p->engine.ps.pdfbody +
! 708: (p->engine.ps.pages * 4) + 4);
! 709: ps_printf(p, "/Info 1 0 R\n");
! 710: ps_printf(p, ">>\n");
! 711: ps_printf(p, "startxref\n");
! 712: ps_printf(p, "%zu\n", xref);
! 713: ps_printf(p, "%%%%EOF\n");
1.2 kristaps 714: }
715:
716:
717: static void
718: ps_begin(struct termp *p)
719: {
1.13 kristaps 720: time_t t;
1.16 kristaps 721: int i;
1.2 kristaps 722:
1.9 kristaps 723: /*
724: * Print margins into margin buffer. Nothing gets output to the
725: * screen yet, so we don't need to initialise the primary state.
1.2 kristaps 726: */
727:
1.4 kristaps 728: if (p->engine.ps.psmarg) {
729: assert(p->engine.ps.psmargsz);
730: p->engine.ps.psmarg[0] = '\0';
731: }
732:
1.37 ! kristaps 733: p->engine.ps.pdfbytes = 0;
1.4 kristaps 734: p->engine.ps.psmargcur = 0;
1.29 kristaps 735: p->engine.ps.flags = PS_MARGINS;
1.16 kristaps 736: p->engine.ps.pscol = p->engine.ps.left;
737: p->engine.ps.psrow = p->engine.ps.header;
1.4 kristaps 738:
1.9 kristaps 739: ps_setfont(p, TERMFONT_NONE);
1.4 kristaps 740:
741: (*p->headf)(p, p->argf);
742: (*p->endline)(p);
743:
1.16 kristaps 744: p->engine.ps.pscol = p->engine.ps.left;
745: p->engine.ps.psrow = p->engine.ps.footer;
1.4 kristaps 746:
747: (*p->footf)(p, p->argf);
748: (*p->endline)(p);
749:
1.29 kristaps 750: p->engine.ps.flags &= ~PS_MARGINS;
1.9 kristaps 751:
1.29 kristaps 752: assert(0 == p->engine.ps.flags);
1.9 kristaps 753: assert(p->engine.ps.psmarg);
754: assert('\0' != p->engine.ps.psmarg[0]);
755:
756: /*
757: * Print header and initialise page state. Following this,
758: * stuff gets printed to the screen, so make sure we're sane.
759: */
1.4 kristaps 760:
1.13 kristaps 761: t = time(NULL);
762:
1.37 ! kristaps 763: if (TERMTYPE_PS == p->type) {
! 764: ps_printf(p, "%%!PS-Adobe-3.0\n");
! 765: ps_printf(p, "%%%%Creator: mandoc-%s\n", VERSION);
! 766: ps_printf(p, "%%%%CreationDate: %s", ctime(&t));
! 767: ps_printf(p, "%%%%DocumentData: Clean7Bit\n");
! 768: ps_printf(p, "%%%%Orientation: Portrait\n");
! 769: ps_printf(p, "%%%%Pages: (atend)\n");
! 770: ps_printf(p, "%%%%PageOrder: Ascend\n");
! 771: ps_printf(p, "%%%%DocumentMedia: "
! 772: "Default %zu %zu 0 () ()\n",
! 773: (size_t)AFM2PNT(p, p->engine.ps.width),
! 774: (size_t)AFM2PNT(p, p->engine.ps.height));
! 775: ps_printf(p, "%%%%DocumentNeededResources: font");
! 776:
! 777: for (i = 0; i < (int)TERMFONT__MAX; i++)
! 778: ps_printf(p, " %s", fonts[i].name);
! 779:
! 780: ps_printf(p, "\n%%%%EndComments\n");
! 781: } else {
! 782: ps_printf(p, "%%PDF-1.1\n");
! 783: ps_printf(p, "1 0 obj\n");
! 784: ps_printf(p, "<<\n");
! 785: ps_printf(p, "/Creator mandoc-%s\n", VERSION);
! 786: ps_printf(p, ">>\n");
! 787: ps_printf(p, "endobj\n");
! 788:
! 789: for (i = 0; i < (int)TERMFONT__MAX; i++) {
! 790: ps_printf(p, "%d 0 obj\n", i + 3);
! 791: ps_printf(p, "<<\n");
! 792: ps_printf(p, "/Type /Font\n");
! 793: ps_printf(p, "/Subtype /Type1\n");
! 794: ps_printf(p, "/Name /F%zu\n", i);
! 795: ps_printf(p, "/BaseFont /%s\n", fonts[i].name);
! 796: ps_printf(p, ">>\n");
! 797: }
! 798: }
1.16 kristaps 799:
1.37 ! kristaps 800: p->engine.ps.pdfbody = (size_t)TERMFONT__MAX + 3;
1.16 kristaps 801: p->engine.ps.pscol = p->engine.ps.left;
802: p->engine.ps.psrow = p->engine.ps.top;
1.29 kristaps 803: p->engine.ps.flags |= PS_NEWPAGE;
1.33 kristaps 804: ps_setfont(p, TERMFONT_NONE);
1.2 kristaps 805: }
806:
807:
808: static void
1.13 kristaps 809: ps_pletter(struct termp *p, int c)
1.2 kristaps 810: {
1.14 kristaps 811: int f;
1.32 kristaps 812:
1.9 kristaps 813: /*
1.32 kristaps 814: * If we haven't opened a page context, then output that we're
815: * in a new page and make sure the font is correctly set.
1.9 kristaps 816: */
817:
1.32 kristaps 818: if (PS_NEWPAGE & p->engine.ps.flags) {
1.37 ! kristaps 819: if (TERMTYPE_PS == p->type) {
! 820: ps_printf(p, "%%%%Page: %zu %zu\n",
! 821: p->engine.ps.pages + 1,
! 822: p->engine.ps.pages + 1);
! 823: ps_printf(p, "/%s %zu selectfont\n",
! 824: fonts[(int)p->engine.ps.lastf].name,
! 825: p->engine.ps.scale);
! 826: } else {
! 827: ps_printf(p, "%zu 0 obj\n",
! 828: p->engine.ps.pdfbody +
! 829: (p->engine.ps.pages + 1) * 4);
! 830: ps_printf(p, "<<\n");
! 831: ps_printf(p, "/Length %zu 0 R\n",
! 832: p->engine.ps.pdfbody +
! 833: (p->engine.ps.pages + 1) * 4 + 1);
! 834: ps_printf(p, ">>\nstream\n");
! 835: }
! 836: p->engine.ps.pdflastpg = p->engine.ps.pdfbytes;
1.32 kristaps 837: p->engine.ps.flags &= ~PS_NEWPAGE;
838: }
839:
840: /*
841: * If we're not in a PostScript "word" context, then open one
842: * now at the current cursor.
843: */
1.30 kristaps 844:
1.29 kristaps 845: if ( ! (PS_INLINE & p->engine.ps.flags)) {
1.37 ! kristaps 846: if (TERMTYPE_PS != p->type) {
! 847: ps_printf(p, "BT\n/F%d %zu Tf\n",
! 848: (int)p->engine.ps.lastf,
! 849: p->engine.ps.scale);
! 850: ps_printf(p, "%.3f %.3f Td\n(",
! 851: AFM2PNT(p, p->engine.ps.pscol),
! 852: AFM2PNT(p, p->engine.ps.psrow));
! 853: } else
! 854: ps_printf(p, "%.3f %.3f moveto\n(",
! 855: AFM2PNT(p, p->engine.ps.pscol),
! 856: AFM2PNT(p, p->engine.ps.psrow));
1.29 kristaps 857: p->engine.ps.flags |= PS_INLINE;
1.2 kristaps 858: }
859:
1.29 kristaps 860: assert( ! (PS_NEWPAGE & p->engine.ps.flags));
861:
1.2 kristaps 862: /*
863: * We need to escape these characters as per the PostScript
864: * specification. We would also escape non-graphable characters
865: * (like tabs), but none of them would get to this point and
866: * it's superfluous to abort() on them.
867: */
868:
869: switch (c) {
870: case ('('):
871: /* FALLTHROUGH */
872: case (')'):
873: /* FALLTHROUGH */
874: case ('\\'):
1.4 kristaps 875: ps_putchar(p, '\\');
1.2 kristaps 876: break;
877: default:
878: break;
879: }
880:
881: /* Write the character and adjust where we are on the page. */
1.9 kristaps 882:
1.14 kristaps 883: f = (int)p->engine.ps.lastf;
1.13 kristaps 884:
1.14 kristaps 885: if (c <= 32 || (c - 32 > MAXCHAR)) {
1.13 kristaps 886: ps_putchar(p, ' ');
1.36 kristaps 887: p->engine.ps.pscol += (size_t)fonts[f].gly[0].wx;
1.13 kristaps 888: return;
889: }
890:
1.25 kristaps 891: ps_putchar(p, (char)c);
1.14 kristaps 892: c -= 32;
1.36 kristaps 893: p->engine.ps.pscol += (size_t)fonts[f].gly[c].wx;
1.2 kristaps 894: }
895:
896:
897: static void
1.9 kristaps 898: ps_pclose(struct termp *p)
899: {
900:
901: /*
902: * Spit out that we're exiting a word context (this is a
903: * "partial close" because we don't check the last-char buffer
904: * or anything).
905: */
906:
1.29 kristaps 907: if ( ! (PS_INLINE & p->engine.ps.flags))
1.9 kristaps 908: return;
909:
1.37 ! kristaps 910: if (TERMTYPE_PS != p->type) {
! 911: ps_printf(p, ") Tj\nET\n");
! 912: } else
! 913: ps_printf(p, ") show\n");
! 914:
1.29 kristaps 915: p->engine.ps.flags &= ~PS_INLINE;
1.9 kristaps 916: }
917:
918:
919: static void
920: ps_fclose(struct termp *p)
921: {
922:
923: /*
924: * Strong closure: if we have a last-char, spit it out after
925: * checking that we're in the right font mode. This will of
926: * course open a new scope, if applicable.
927: *
928: * Following this, close out any scope that's open.
929: */
930:
931: if ('\0' != p->engine.ps.last) {
932: if (p->engine.ps.lastf != TERMFONT_NONE) {
933: ps_pclose(p);
934: ps_setfont(p, TERMFONT_NONE);
935: }
936: ps_pletter(p, p->engine.ps.last);
937: p->engine.ps.last = '\0';
938: }
939:
1.29 kristaps 940: if ( ! (PS_INLINE & p->engine.ps.flags))
1.9 kristaps 941: return;
942:
943: ps_pclose(p);
944: }
945:
946:
947: static void
1.8 kristaps 948: ps_letter(struct termp *p, char c)
949: {
950: char cc;
1.9 kristaps 951:
952: /*
953: * State machine dictates whether to buffer the last character
954: * or not. Basically, encoded words are detected by checking if
955: * we're an "8" and switching on the buffer. Then we put "8" in
956: * our buffer, and on the next charater, flush both character
957: * and buffer. Thus, "regular" words are detected by having a
958: * regular character and a regular buffer character.
959: */
960:
1.8 kristaps 961: if ('\0' == p->engine.ps.last) {
962: assert(8 != c);
963: p->engine.ps.last = c;
964: return;
965: } else if (8 == p->engine.ps.last) {
966: assert(8 != c);
1.9 kristaps 967: p->engine.ps.last = '\0';
1.8 kristaps 968: } else if (8 == c) {
969: assert(8 != p->engine.ps.last);
1.9 kristaps 970: if ('_' == p->engine.ps.last) {
971: if (p->engine.ps.lastf != TERMFONT_UNDER) {
972: ps_pclose(p);
973: ps_setfont(p, TERMFONT_UNDER);
974: }
975: } else if (p->engine.ps.lastf != TERMFONT_BOLD) {
976: ps_pclose(p);
977: ps_setfont(p, TERMFONT_BOLD);
978: }
1.8 kristaps 979: p->engine.ps.last = c;
980: return;
981: } else {
1.9 kristaps 982: if (p->engine.ps.lastf != TERMFONT_NONE) {
983: ps_pclose(p);
984: ps_setfont(p, TERMFONT_NONE);
985: }
1.8 kristaps 986: cc = p->engine.ps.last;
987: p->engine.ps.last = c;
988: c = cc;
989: }
990:
1.9 kristaps 991: ps_pletter(p, c);
1.8 kristaps 992: }
993:
994:
995: static void
1.2 kristaps 996: ps_advance(struct termp *p, size_t len)
997: {
998:
1.9 kristaps 999: /*
1000: * Advance some spaces. This can probably be made smarter,
1001: * i.e., to have multiple space-separated words in the same
1002: * scope, but this is easier: just close out the current scope
1003: * and readjust our column settings.
1004: */
1.8 kristaps 1005:
1.9 kristaps 1006: ps_fclose(p);
1.14 kristaps 1007: p->engine.ps.pscol += len;
1.2 kristaps 1008: }
1009:
1010:
1011: static void
1012: ps_endline(struct termp *p)
1013: {
1.8 kristaps 1014:
1.9 kristaps 1015: /* Close out any scopes we have open: we're at eoln. */
1016:
1017: ps_fclose(p);
1.2 kristaps 1018:
1.9 kristaps 1019: /*
1020: * If we're in the margin, don't try to recalculate our current
1021: * row. XXX: if the column tries to be fancy with multiple
1022: * lines, we'll do nasty stuff.
1023: */
1.2 kristaps 1024:
1.29 kristaps 1025: if (PS_MARGINS & p->engine.ps.flags)
1026: return;
1027:
1028: /* Left-justify. */
1029:
1030: p->engine.ps.pscol = p->engine.ps.left;
1031:
1032: /* If we haven't printed anything, return. */
1033:
1034: if (PS_NEWPAGE & p->engine.ps.flags)
1.2 kristaps 1035: return;
1036:
1.9 kristaps 1037: /*
1038: * Put us down a line. If we're at the page bottom, spit out a
1039: * showpage and restart our row.
1040: */
1041:
1.16 kristaps 1042: if (p->engine.ps.psrow >= p->engine.ps.lineheight +
1043: p->engine.ps.bottom) {
1044: p->engine.ps.psrow -= p->engine.ps.lineheight;
1.2 kristaps 1045: return;
1046: }
1047:
1.37 ! kristaps 1048: ps_closepage(p);
1.1 kristaps 1049: }
1.9 kristaps 1050:
1051:
1052: static void
1053: ps_setfont(struct termp *p, enum termfont f)
1054: {
1055:
1.16 kristaps 1056: assert(f < TERMFONT__MAX);
1.32 kristaps 1057: p->engine.ps.lastf = f;
1058:
1059: /*
1060: * If we're still at the top of the page, let the font-setting
1061: * be delayed until we actually have stuff to print.
1062: */
1063:
1064: if (PS_NEWPAGE & p->engine.ps.flags)
1065: return;
1066:
1.37 ! kristaps 1067: if (TERMTYPE_PS == p->type)
! 1068: ps_printf(p, "/%s %zu selectfont\n",
! 1069: fonts[(int)f].name,
! 1070: p->engine.ps.scale);
! 1071: else
! 1072: ps_printf(p, "/F%d %zu Tf\n",
! 1073: (int)f,
! 1074: p->engine.ps.scale);
1.9 kristaps 1075: }
1076:
1.11 kristaps 1077:
1.12 kristaps 1078: /* ARGSUSED */
1.11 kristaps 1079: static size_t
1080: ps_width(const struct termp *p, char c)
1081: {
1082:
1.14 kristaps 1083: if (c <= 32 || c - 32 >= MAXCHAR)
1.36 kristaps 1084: return((size_t)fonts[(int)TERMFONT_NONE].gly[0].wx);
1.14 kristaps 1085:
1086: c -= 32;
1.36 kristaps 1087: return((size_t)fonts[(int)TERMFONT_NONE].gly[(int)c].wx);
1.11 kristaps 1088: }
1.19 kristaps 1089:
1090:
1.20 kristaps 1091: static double
1.19 kristaps 1092: ps_hspan(const struct termp *p, const struct roffsu *su)
1093: {
1094: double r;
1095:
1096: /*
1097: * All of these measurements are derived by converting from the
1.21 kristaps 1098: * native measurement to AFM units.
1.19 kristaps 1099: */
1100:
1101: switch (su->unit) {
1102: case (SCALE_CM):
1.21 kristaps 1103: r = PNT2AFM(p, su->scale * 28.34);
1.19 kristaps 1104: break;
1105: case (SCALE_IN):
1.21 kristaps 1106: r = PNT2AFM(p, su->scale * 72);
1.19 kristaps 1107: break;
1108: case (SCALE_PC):
1.21 kristaps 1109: r = PNT2AFM(p, su->scale * 12);
1.19 kristaps 1110: break;
1111: case (SCALE_PT):
1.21 kristaps 1112: r = PNT2AFM(p, su->scale * 100);
1.19 kristaps 1113: break;
1114: case (SCALE_EM):
1.36 kristaps 1115: r = su->scale *
1.19 kristaps 1116: fonts[(int)TERMFONT_NONE].gly[109 - 32].wx;
1117: break;
1118: case (SCALE_MM):
1.21 kristaps 1119: r = PNT2AFM(p, su->scale * 2.834);
1.19 kristaps 1120: break;
1121: case (SCALE_EN):
1.36 kristaps 1122: r = su->scale *
1.19 kristaps 1123: fonts[(int)TERMFONT_NONE].gly[110 - 32].wx;
1124: break;
1125: case (SCALE_VS):
1126: r = su->scale * p->engine.ps.lineheight;
1127: break;
1128: default:
1129: r = su->scale;
1130: break;
1131: }
1132:
1.20 kristaps 1133: return(r);
1.19 kristaps 1134: }
1135:
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