Annotation of mandoc/term_ps.c, Revision 1.54
1.54 ! schwarze 1: /* $Id: term_ps.c,v 1.53 2011/09/18 14:14:15 schwarze Exp $ */
1.1 kristaps 2: /*
1.53 schwarze 3: * Copyright (c) 2010, 2011 Kristaps Dzonsons <kristaps@bsd.lv>
1.1 kristaps 4: *
5: * Permission to use, copy, modify, and distribute this software for any
6: * purpose with or without fee is hereby granted, provided that the above
7: * copyright notice and this permission notice appear in all copies.
8: *
9: * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
10: * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
11: * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
12: * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
13: * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
14: * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
15: * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
16: */
17: #ifdef HAVE_CONFIG_H
18: #include "config.h"
19: #endif
20:
1.43 kristaps 21: #include <sys/types.h>
1.4 kristaps 22:
1.2 kristaps 23: #include <assert.h>
1.4 kristaps 24: #include <stdarg.h>
1.17 kristaps 25: #include <stdint.h>
1.2 kristaps 26: #include <stdio.h>
1.1 kristaps 27: #include <stdlib.h>
1.4 kristaps 28: #include <string.h>
1.13 kristaps 29: #include <time.h>
1.26 kristaps 30: #include <unistd.h>
1.1 kristaps 31:
1.42 schwarze 32: #include "mandoc.h"
1.1 kristaps 33: #include "out.h"
34: #include "main.h"
35: #include "term.h"
36:
1.50 kristaps 37: /* These work the buffer used by the header and footer. */
38: #define PS_BUFSLOP 128
39:
1.21 kristaps 40: /* Convert PostScript point "x" to an AFM unit. */
1.25 kristaps 41: #define PNT2AFM(p, x) /* LINTED */ \
1.50 kristaps 42: (size_t)((double)(x) * (1000.0 / (double)(p)->ps->scale))
1.21 kristaps 43:
44: /* Convert an AFM unit "x" to a PostScript points */
1.25 kristaps 45: #define AFM2PNT(p, x) /* LINTED */ \
1.50 kristaps 46: ((double)(x) / (1000.0 / (double)(p)->ps->scale))
1.21 kristaps 47:
1.13 kristaps 48: struct glyph {
1.36 kristaps 49: unsigned short wx; /* WX in AFM */
1.13 kristaps 50: };
51:
52: struct font {
53: const char *name; /* FontName in AFM */
1.15 kristaps 54: #define MAXCHAR 95 /* total characters we can handle */
1.13 kristaps 55: struct glyph gly[MAXCHAR]; /* glyph metrics */
56: };
57:
1.50 kristaps 58: struct termp_ps {
59: int flags;
60: #define PS_INLINE (1 << 0) /* we're in a word */
61: #define PS_MARGINS (1 << 1) /* we're in the margins */
62: #define PS_NEWPAGE (1 << 2) /* new page, no words yet */
63: size_t pscol; /* visible column (AFM units) */
64: size_t psrow; /* visible row (AFM units) */
65: char *psmarg; /* margin buf */
66: size_t psmargsz; /* margin buf size */
67: size_t psmargcur; /* cur index in margin buf */
68: char last; /* character buffer */
69: enum termfont lastf; /* last set font */
70: size_t scale; /* font scaling factor */
71: size_t pages; /* number of pages shown */
72: size_t lineheight; /* line height (AFM units) */
73: size_t top; /* body top (AFM units) */
74: size_t bottom; /* body bottom (AFM units) */
75: size_t height; /* page height (AFM units */
76: size_t width; /* page width (AFM units) */
77: size_t left; /* body left (AFM units) */
78: size_t header; /* header pos (AFM units) */
79: size_t footer; /* footer pos (AFM units) */
80: size_t pdfbytes; /* current output byte */
81: size_t pdflastpg; /* byte of last page mark */
82: size_t pdfbody; /* start of body object */
83: size_t *pdfobjs; /* table of object offsets */
84: size_t pdfobjsz; /* size of pdfobjs */
85: };
86:
87: static double ps_hspan(const struct termp *,
88: const struct roffsu *);
89: static size_t ps_width(const struct termp *, int);
90: static void ps_advance(struct termp *, size_t);
91: static void ps_begin(struct termp *);
92: static void ps_closepage(struct termp *);
93: static void ps_end(struct termp *);
94: static void ps_endline(struct termp *);
95: static void ps_fclose(struct termp *);
96: static void ps_growbuf(struct termp *, size_t);
97: static void ps_letter(struct termp *, int);
98: static void ps_pclose(struct termp *);
99: static void ps_pletter(struct termp *, int);
100: static void ps_printf(struct termp *, const char *, ...);
101: static void ps_putchar(struct termp *, char);
102: static void ps_setfont(struct termp *, enum termfont);
103: static struct termp *pspdf_alloc(char *);
104: static void pdf_obj(struct termp *, size_t);
105:
1.13 kristaps 106: /*
107: * We define, for the time being, three fonts: bold, oblique/italic, and
108: * normal (roman). The following table hard-codes the font metrics for
109: * ASCII, i.e., 32--127.
110: */
111:
1.16 kristaps 112: static const struct font fonts[TERMFONT__MAX] = {
1.24 kristaps 113: { "Times-Roman", {
114: { 250 },
115: { 333 },
116: { 408 },
117: { 500 },
118: { 500 },
119: { 833 },
120: { 778 },
121: { 333 },
122: { 333 },
123: { 333 },
124: { 500 },
125: { 564 },
126: { 250 },
127: { 333 },
128: { 250 },
129: { 278 },
130: { 500 },
131: { 500 },
132: { 500 },
133: { 500 },
134: { 500 },
135: { 500 },
136: { 500 },
137: { 500 },
138: { 500 },
139: { 500 },
140: { 278 },
141: { 278 },
142: { 564 },
143: { 564 },
144: { 564 },
145: { 444 },
146: { 921 },
147: { 722 },
148: { 667 },
149: { 667 },
150: { 722 },
151: { 611 },
152: { 556 },
153: { 722 },
154: { 722 },
155: { 333 },
156: { 389 },
157: { 722 },
158: { 611 },
159: { 889 },
160: { 722 },
161: { 722 },
162: { 556 },
163: { 722 },
164: { 667 },
165: { 556 },
166: { 611 },
167: { 722 },
168: { 722 },
169: { 944 },
170: { 722 },
171: { 722 },
172: { 611 },
173: { 333 },
174: { 278 },
175: { 333 },
176: { 469 },
177: { 500 },
178: { 333 },
179: { 444 },
180: { 500 },
181: { 444 },
182: { 500},
183: { 444},
184: { 333},
185: { 500},
186: { 500},
187: { 278},
188: { 278},
189: { 500},
190: { 278},
191: { 778},
192: { 500},
193: { 500},
194: { 500},
195: { 500},
196: { 333},
197: { 389},
198: { 278},
199: { 500},
200: { 500},
201: { 722},
202: { 500},
203: { 500},
204: { 444},
205: { 480},
206: { 200},
207: { 480},
208: { 541},
209: } },
210: { "Times-Bold", {
211: { 250 },
212: { 333 },
213: { 555 },
214: { 500 },
215: { 500 },
216: { 1000 },
217: { 833 },
218: { 333 },
219: { 333 },
220: { 333 },
221: { 500 },
222: { 570 },
223: { 250 },
224: { 333 },
225: { 250 },
226: { 278 },
227: { 500 },
228: { 500 },
229: { 500 },
230: { 500 },
231: { 500 },
232: { 500 },
233: { 500 },
234: { 500 },
235: { 500 },
236: { 500 },
237: { 333 },
238: { 333 },
239: { 570 },
240: { 570 },
241: { 570 },
242: { 500 },
243: { 930 },
244: { 722 },
245: { 667 },
246: { 722 },
247: { 722 },
248: { 667 },
249: { 611 },
250: { 778 },
251: { 778 },
252: { 389 },
253: { 500 },
254: { 778 },
255: { 667 },
256: { 944 },
257: { 722 },
258: { 778 },
259: { 611 },
260: { 778 },
261: { 722 },
262: { 556 },
263: { 667 },
264: { 722 },
265: { 722 },
266: { 1000 },
267: { 722 },
268: { 722 },
269: { 667 },
270: { 333 },
271: { 278 },
272: { 333 },
273: { 581 },
274: { 500 },
275: { 333 },
276: { 500 },
277: { 556 },
278: { 444 },
1.22 kristaps 279: { 556 },
1.24 kristaps 280: { 444 },
281: { 333 },
1.22 kristaps 282: { 500 },
1.24 kristaps 283: { 556 },
1.22 kristaps 284: { 278 },
1.24 kristaps 285: { 333 },
286: { 556 },
1.22 kristaps 287: { 278 },
1.24 kristaps 288: { 833 },
1.22 kristaps 289: { 556 },
1.24 kristaps 290: { 500 },
1.22 kristaps 291: { 556 },
292: { 556 },
293: { 444 },
1.24 kristaps 294: { 389 },
295: { 333 },
1.22 kristaps 296: { 556 },
297: { 500 },
1.24 kristaps 298: { 722 },
299: { 500 },
1.22 kristaps 300: { 500 },
1.24 kristaps 301: { 444 },
302: { 394 },
303: { 220 },
304: { 394 },
305: { 520 },
1.13 kristaps 306: } },
1.24 kristaps 307: { "Times-Italic", {
308: { 250 },
309: { 333 },
310: { 420 },
311: { 500 },
312: { 500 },
313: { 833 },
314: { 778 },
315: { 333 },
316: { 333 },
317: { 333 },
318: { 500 },
319: { 675 },
320: { 250 },
321: { 333 },
322: { 250 },
323: { 278 },
324: { 500 },
325: { 500 },
326: { 500 },
327: { 500 },
328: { 500 },
329: { 500 },
330: { 500 },
331: { 500 },
332: { 500 },
333: { 500 },
334: { 333 },
335: { 333 },
336: { 675 },
337: { 675 },
338: { 675 },
339: { 500 },
340: { 920 },
341: { 611 },
342: { 611 },
343: { 667 },
344: { 722 },
345: { 611 },
346: { 611 },
347: { 722 },
348: { 722 },
349: { 333 },
350: { 444 },
351: { 667 },
352: { 556 },
353: { 833 },
354: { 667 },
355: { 722 },
356: { 611 },
357: { 722 },
358: { 611 },
359: { 500 },
360: { 556 },
361: { 722 },
362: { 611 },
363: { 833 },
364: { 611 },
365: { 556 },
366: { 556 },
367: { 389 },
368: { 278 },
369: { 389 },
370: { 422 },
371: { 500 },
372: { 333 },
373: { 500 },
374: { 500 },
375: { 444 },
1.22 kristaps 376: { 500 },
1.24 kristaps 377: { 444 },
378: { 278 },
1.22 kristaps 379: { 500 },
380: { 500 },
381: { 278 },
1.24 kristaps 382: { 278 },
383: { 444 },
384: { 278 },
385: { 722 },
386: { 500 },
387: { 500 },
388: { 500 },
1.22 kristaps 389: { 500 },
1.24 kristaps 390: { 389 },
391: { 389 },
1.22 kristaps 392: { 278 },
393: { 500 },
1.24 kristaps 394: { 444 },
395: { 667 },
396: { 444 },
397: { 444 },
398: { 389 },
399: { 400 },
1.22 kristaps 400: { 275 },
1.24 kristaps 401: { 400 },
402: { 541 },
1.13 kristaps 403: } },
404: };
405:
1.37 kristaps 406: void *
407: pdf_alloc(char *outopts)
408: {
409: struct termp *p;
410:
1.38 kristaps 411: if (NULL != (p = pspdf_alloc(outopts)))
412: p->type = TERMTYPE_PDF;
1.37 kristaps 413:
414: return(p);
415: }
1.2 kristaps 416:
1.1 kristaps 417: void *
1.17 kristaps 418: ps_alloc(char *outopts)
1.1 kristaps 419: {
420: struct termp *p;
1.37 kristaps 421:
1.38 kristaps 422: if (NULL != (p = pspdf_alloc(outopts)))
423: p->type = TERMTYPE_PS;
1.37 kristaps 424:
425: return(p);
426: }
427:
428: static struct termp *
429: pspdf_alloc(char *outopts)
430: {
431: struct termp *p;
1.52 kristaps 432: unsigned int pagex, pagey;
433: size_t marginx, marginy, lineheight;
1.17 kristaps 434: const char *toks[2];
1.25 kristaps 435: const char *pp;
1.17 kristaps 436: char *v;
1.1 kristaps 437:
1.51 kristaps 438: p = mandoc_calloc(1, sizeof(struct termp));
439: p->enc = TERMENC_ASCII;
1.50 kristaps 440: p->ps = mandoc_calloc(1, sizeof(struct termp_ps));
1.1 kristaps 441:
1.19 kristaps 442: p->advance = ps_advance;
1.2 kristaps 443: p->begin = ps_begin;
444: p->end = ps_end;
445: p->endline = ps_endline;
1.19 kristaps 446: p->hspan = ps_hspan;
447: p->letter = ps_letter;
1.11 kristaps 448: p->width = ps_width;
1.21 kristaps 449:
1.17 kristaps 450: toks[0] = "paper";
451: toks[1] = NULL;
452:
1.25 kristaps 453: pp = NULL;
1.19 kristaps 454:
1.17 kristaps 455: while (outopts && *outopts)
456: switch (getsubopt(&outopts, UNCONST(toks), &v)) {
457: case (0):
1.25 kristaps 458: pp = v;
1.17 kristaps 459: break;
460: default:
461: break;
462: }
1.16 kristaps 463:
1.25 kristaps 464: /* Default to US letter (millimetres). */
465:
1.31 kristaps 466: pagex = 216;
467: pagey = 279;
1.25 kristaps 468:
469: /*
470: * The ISO-269 paper sizes can be calculated automatically, but
471: * it would require bringing in -lm for pow() and I'd rather not
472: * do that. So just do it the easy way for now. Since this
473: * only happens once, I'm not terribly concerned.
474: */
475:
476: if (pp && strcasecmp(pp, "letter")) {
477: if (0 == strcasecmp(pp, "a3")) {
478: pagex = 297;
479: pagey = 420;
480: } else if (0 == strcasecmp(pp, "a4")) {
481: pagex = 210;
482: pagey = 297;
483: } else if (0 == strcasecmp(pp, "a5")) {
484: pagex = 148;
485: pagey = 210;
486: } else if (0 == strcasecmp(pp, "legal")) {
487: pagex = 216;
488: pagey = 356;
1.52 kristaps 489: } else if (2 != sscanf(pp, "%ux%u", &pagex, &pagey))
1.25 kristaps 490: fprintf(stderr, "%s: Unknown paper\n", pp);
1.54 ! schwarze 491: }
1.27 kristaps 492:
493: /*
494: * This MUST be defined before any PNT2AFM or AFM2PNT
495: * calculations occur.
496: */
497:
1.50 kristaps 498: p->ps->scale = 11;
1.27 kristaps 499:
1.25 kristaps 500: /* Remember millimetres -> AFM units. */
501:
502: pagex = PNT2AFM(p, ((double)pagex * 2.834));
503: pagey = PNT2AFM(p, ((double)pagey * 2.834));
504:
1.28 kristaps 505: /* Margins are 1/9 the page x and y. */
1.27 kristaps 506:
1.29 kristaps 507: marginx = /* LINTED */
508: (size_t)((double)pagex / 9.0);
509: marginy = /* LINTED */
510: (size_t)((double)pagey / 9.0);
1.27 kristaps 511:
1.31 kristaps 512: /* Line-height is 1.4em. */
513:
1.50 kristaps 514: lineheight = PNT2AFM(p, ((double)p->ps->scale * 1.4));
1.16 kristaps 515:
1.52 kristaps 516: p->ps->width = (size_t)pagex;
517: p->ps->height = (size_t)pagey;
1.50 kristaps 518: p->ps->header = pagey - (marginy / 2) - (lineheight / 2);
519: p->ps->top = pagey - marginy;
520: p->ps->footer = (marginy / 2) - (lineheight / 2);
521: p->ps->bottom = marginy;
522: p->ps->left = marginx;
523: p->ps->lineheight = lineheight;
1.16 kristaps 524:
1.28 kristaps 525: p->defrmargin = pagex - (marginx * 2);
1.1 kristaps 526: return(p);
527: }
528:
529:
530: void
1.37 kristaps 531: pspdf_free(void *arg)
1.1 kristaps 532: {
1.4 kristaps 533: struct termp *p;
534:
535: p = (struct termp *)arg;
536:
1.50 kristaps 537: if (p->ps->psmarg)
538: free(p->ps->psmarg);
539: if (p->ps->pdfobjs)
540: free(p->ps->pdfobjs);
1.4 kristaps 541:
1.50 kristaps 542: free(p->ps);
1.4 kristaps 543: term_free(p);
544: }
545:
546:
547: static void
548: ps_printf(struct termp *p, const char *fmt, ...)
549: {
550: va_list ap;
1.37 kristaps 551: int pos, len;
1.4 kristaps 552:
553: va_start(ap, fmt);
554:
555: /*
556: * If we're running in regular mode, then pipe directly into
557: * vprintf(). If we're processing margins, then push the data
558: * into our growable margin buffer.
559: */
1.1 kristaps 560:
1.50 kristaps 561: if ( ! (PS_MARGINS & p->ps->flags)) {
1.37 kristaps 562: len = vprintf(fmt, ap);
1.4 kristaps 563: va_end(ap);
1.50 kristaps 564: p->ps->pdfbytes += /* LINTED */
1.37 kristaps 565: len < 0 ? 0 : (size_t)len;
1.4 kristaps 566: return;
567: }
568:
569: /*
570: * XXX: I assume that the in-margin print won't exceed
571: * PS_BUFSLOP (128 bytes), which is reasonable but still an
572: * assumption that will cause pukeage if it's not the case.
573: */
574:
1.40 joerg 575: ps_growbuf(p, PS_BUFSLOP);
1.4 kristaps 576:
1.50 kristaps 577: pos = (int)p->ps->psmargcur;
1.54 ! schwarze 578: vsnprintf(&p->ps->psmarg[pos], PS_BUFSLOP, fmt, ap);
1.5 kristaps 579:
580: va_end(ap);
1.37 kristaps 581:
1.50 kristaps 582: p->ps->psmargcur = strlen(p->ps->psmarg);
1.4 kristaps 583: }
584:
585:
586: static void
587: ps_putchar(struct termp *p, char c)
588: {
589: int pos;
590:
591: /* See ps_printf(). */
592:
1.50 kristaps 593: if ( ! (PS_MARGINS & p->ps->flags)) {
1.44 kristaps 594: /* LINTED */
1.4 kristaps 595: putchar(c);
1.50 kristaps 596: p->ps->pdfbytes++;
1.4 kristaps 597: return;
598: }
599:
1.40 joerg 600: ps_growbuf(p, 2);
1.4 kristaps 601:
1.50 kristaps 602: pos = (int)p->ps->psmargcur++;
603: p->ps->psmarg[pos++] = c;
604: p->ps->psmarg[pos] = '\0';
1.2 kristaps 605: }
606:
607:
1.37 kristaps 608: static void
1.39 kristaps 609: pdf_obj(struct termp *p, size_t obj)
610: {
611:
612: assert(obj > 0);
613:
1.50 kristaps 614: if ((obj - 1) >= p->ps->pdfobjsz) {
615: p->ps->pdfobjsz = obj + 128;
616: p->ps->pdfobjs = realloc
617: (p->ps->pdfobjs,
618: p->ps->pdfobjsz * sizeof(size_t));
619: if (NULL == p->ps->pdfobjs) {
1.39 kristaps 620: perror(NULL);
1.44 kristaps 621: exit((int)MANDOCLEVEL_SYSERR);
1.39 kristaps 622: }
623: }
624:
1.50 kristaps 625: p->ps->pdfobjs[(int)obj - 1] = p->ps->pdfbytes;
1.39 kristaps 626: ps_printf(p, "%zu 0 obj\n", obj);
627: }
628:
629:
630: static void
1.37 kristaps 631: ps_closepage(struct termp *p)
632: {
633: int i;
1.38 kristaps 634: size_t len, base;
635:
636: /*
637: * Close out a page that we've already flushed to output. In
638: * PostScript, we simply note that the page must be showed. In
639: * PDF, we must now create the Length, Resource, and Page node
640: * for the page contents.
641: */
1.37 kristaps 642:
1.50 kristaps 643: assert(p->ps->psmarg && p->ps->psmarg[0]);
644: ps_printf(p, "%s", p->ps->psmarg);
1.37 kristaps 645:
1.38 kristaps 646: if (TERMTYPE_PS != p->type) {
1.37 kristaps 647: ps_printf(p, "ET\n");
1.38 kristaps 648:
1.50 kristaps 649: len = p->ps->pdfbytes - p->ps->pdflastpg;
650: base = p->ps->pages * 4 + p->ps->pdfbody;
1.38 kristaps 651:
652: ps_printf(p, "endstream\nendobj\n");
653:
654: /* Length of content. */
1.39 kristaps 655: pdf_obj(p, base + 1);
1.38 kristaps 656: ps_printf(p, "%zu\nendobj\n", len);
657:
658: /* Resource for content. */
1.39 kristaps 659: pdf_obj(p, base + 2);
1.38 kristaps 660: ps_printf(p, "<<\n/ProcSet [/PDF /Text]\n");
1.37 kristaps 661: ps_printf(p, "/Font <<\n");
1.39 kristaps 662: for (i = 0; i < (int)TERMFONT__MAX; i++)
1.37 kristaps 663: ps_printf(p, "/F%d %d 0 R\n", i, 3 + i);
1.38 kristaps 664: ps_printf(p, ">>\n>>\n");
665:
666: /* Page node. */
1.39 kristaps 667: pdf_obj(p, base + 3);
668: ps_printf(p, "<<\n");
1.37 kristaps 669: ps_printf(p, "/Type /Page\n");
670: ps_printf(p, "/Parent 2 0 R\n");
1.38 kristaps 671: ps_printf(p, "/Resources %zu 0 R\n", base + 2);
672: ps_printf(p, "/Contents %zu 0 R\n", base);
673: ps_printf(p, ">>\nendobj\n");
674: } else
675: ps_printf(p, "showpage\n");
1.37 kristaps 676:
1.50 kristaps 677: p->ps->pages++;
678: p->ps->psrow = p->ps->top;
679: assert( ! (PS_NEWPAGE & p->ps->flags));
680: p->ps->flags |= PS_NEWPAGE;
1.37 kristaps 681: }
682:
683:
1.3 kristaps 684: /* ARGSUSED */
1.2 kristaps 685: static void
686: ps_end(struct termp *p)
687: {
1.38 kristaps 688: size_t i, xref, base;
1.2 kristaps 689:
1.4 kristaps 690: /*
691: * At the end of the file, do one last showpage. This is the
692: * same behaviour as groff(1) and works for multiple pages as
693: * well as just one.
694: */
695:
1.50 kristaps 696: if ( ! (PS_NEWPAGE & p->ps->flags)) {
697: assert(0 == p->ps->flags);
698: assert('\0' == p->ps->last);
1.37 kristaps 699: ps_closepage(p);
1.30 kristaps 700: }
1.16 kristaps 701:
1.37 kristaps 702: if (TERMTYPE_PS == p->type) {
703: ps_printf(p, "%%%%Trailer\n");
1.50 kristaps 704: ps_printf(p, "%%%%Pages: %zu\n", p->ps->pages);
1.37 kristaps 705: ps_printf(p, "%%%%EOF\n");
706: return;
707: }
708:
1.39 kristaps 709: pdf_obj(p, 2);
710: ps_printf(p, "<<\n/Type /Pages\n");
1.37 kristaps 711: ps_printf(p, "/MediaBox [0 0 %zu %zu]\n",
1.50 kristaps 712: (size_t)AFM2PNT(p, p->ps->width),
713: (size_t)AFM2PNT(p, p->ps->height));
1.37 kristaps 714:
1.50 kristaps 715: ps_printf(p, "/Count %zu\n", p->ps->pages);
1.37 kristaps 716: ps_printf(p, "/Kids [");
717:
1.50 kristaps 718: for (i = 0; i < p->ps->pages; i++)
1.38 kristaps 719: ps_printf(p, " %zu 0 R", i * 4 +
1.50 kristaps 720: p->ps->pdfbody + 3);
1.38 kristaps 721:
1.50 kristaps 722: base = (p->ps->pages - 1) * 4 +
723: p->ps->pdfbody + 4;
1.38 kristaps 724:
725: ps_printf(p, "]\n>>\nendobj\n");
1.39 kristaps 726: pdf_obj(p, base);
1.37 kristaps 727: ps_printf(p, "<<\n");
728: ps_printf(p, "/Type /Catalog\n");
729: ps_printf(p, "/Pages 2 0 R\n");
730: ps_printf(p, ">>\n");
1.50 kristaps 731: xref = p->ps->pdfbytes;
1.37 kristaps 732: ps_printf(p, "xref\n");
1.38 kristaps 733: ps_printf(p, "0 %zu\n", base + 1);
1.39 kristaps 734: ps_printf(p, "0000000000 65535 f \n");
735:
736: for (i = 0; i < base; i++)
737: ps_printf(p, "%.10zu 00000 n \n",
1.50 kristaps 738: p->ps->pdfobjs[(int)i]);
1.39 kristaps 739:
1.37 kristaps 740: ps_printf(p, "trailer\n");
741: ps_printf(p, "<<\n");
1.38 kristaps 742: ps_printf(p, "/Size %zu\n", base + 1);
743: ps_printf(p, "/Root %zu 0 R\n", base);
1.37 kristaps 744: ps_printf(p, "/Info 1 0 R\n");
745: ps_printf(p, ">>\n");
746: ps_printf(p, "startxref\n");
747: ps_printf(p, "%zu\n", xref);
748: ps_printf(p, "%%%%EOF\n");
1.2 kristaps 749: }
750:
751:
752: static void
753: ps_begin(struct termp *p)
754: {
1.13 kristaps 755: time_t t;
1.16 kristaps 756: int i;
1.2 kristaps 757:
1.9 kristaps 758: /*
759: * Print margins into margin buffer. Nothing gets output to the
760: * screen yet, so we don't need to initialise the primary state.
1.2 kristaps 761: */
762:
1.50 kristaps 763: if (p->ps->psmarg) {
764: assert(p->ps->psmargsz);
765: p->ps->psmarg[0] = '\0';
1.4 kristaps 766: }
767:
1.50 kristaps 768: /*p->ps->pdfbytes = 0;*/
769: p->ps->psmargcur = 0;
770: p->ps->flags = PS_MARGINS;
771: p->ps->pscol = p->ps->left;
772: p->ps->psrow = p->ps->header;
1.4 kristaps 773:
1.9 kristaps 774: ps_setfont(p, TERMFONT_NONE);
1.4 kristaps 775:
776: (*p->headf)(p, p->argf);
777: (*p->endline)(p);
778:
1.50 kristaps 779: p->ps->pscol = p->ps->left;
780: p->ps->psrow = p->ps->footer;
1.4 kristaps 781:
782: (*p->footf)(p, p->argf);
783: (*p->endline)(p);
784:
1.50 kristaps 785: p->ps->flags &= ~PS_MARGINS;
1.9 kristaps 786:
1.50 kristaps 787: assert(0 == p->ps->flags);
788: assert(p->ps->psmarg);
789: assert('\0' != p->ps->psmarg[0]);
1.9 kristaps 790:
791: /*
792: * Print header and initialise page state. Following this,
793: * stuff gets printed to the screen, so make sure we're sane.
794: */
1.4 kristaps 795:
1.13 kristaps 796: t = time(NULL);
797:
1.37 kristaps 798: if (TERMTYPE_PS == p->type) {
799: ps_printf(p, "%%!PS-Adobe-3.0\n");
800: ps_printf(p, "%%%%CreationDate: %s", ctime(&t));
801: ps_printf(p, "%%%%DocumentData: Clean7Bit\n");
802: ps_printf(p, "%%%%Orientation: Portrait\n");
803: ps_printf(p, "%%%%Pages: (atend)\n");
804: ps_printf(p, "%%%%PageOrder: Ascend\n");
805: ps_printf(p, "%%%%DocumentMedia: "
806: "Default %zu %zu 0 () ()\n",
1.50 kristaps 807: (size_t)AFM2PNT(p, p->ps->width),
808: (size_t)AFM2PNT(p, p->ps->height));
1.37 kristaps 809: ps_printf(p, "%%%%DocumentNeededResources: font");
810:
811: for (i = 0; i < (int)TERMFONT__MAX; i++)
812: ps_printf(p, " %s", fonts[i].name);
813:
814: ps_printf(p, "\n%%%%EndComments\n");
815: } else {
816: ps_printf(p, "%%PDF-1.1\n");
1.39 kristaps 817: pdf_obj(p, 1);
1.37 kristaps 818: ps_printf(p, "<<\n");
819: ps_printf(p, ">>\n");
820: ps_printf(p, "endobj\n");
821:
822: for (i = 0; i < (int)TERMFONT__MAX; i++) {
1.39 kristaps 823: pdf_obj(p, (size_t)i + 3);
1.37 kristaps 824: ps_printf(p, "<<\n");
825: ps_printf(p, "/Type /Font\n");
826: ps_printf(p, "/Subtype /Type1\n");
827: ps_printf(p, "/Name /F%zu\n", i);
828: ps_printf(p, "/BaseFont /%s\n", fonts[i].name);
829: ps_printf(p, ">>\n");
830: }
831: }
1.16 kristaps 832:
1.50 kristaps 833: p->ps->pdfbody = (size_t)TERMFONT__MAX + 3;
834: p->ps->pscol = p->ps->left;
835: p->ps->psrow = p->ps->top;
836: p->ps->flags |= PS_NEWPAGE;
1.33 kristaps 837: ps_setfont(p, TERMFONT_NONE);
1.2 kristaps 838: }
839:
840:
841: static void
1.13 kristaps 842: ps_pletter(struct termp *p, int c)
1.2 kristaps 843: {
1.14 kristaps 844: int f;
1.32 kristaps 845:
1.9 kristaps 846: /*
1.32 kristaps 847: * If we haven't opened a page context, then output that we're
848: * in a new page and make sure the font is correctly set.
1.9 kristaps 849: */
850:
1.50 kristaps 851: if (PS_NEWPAGE & p->ps->flags) {
1.37 kristaps 852: if (TERMTYPE_PS == p->type) {
853: ps_printf(p, "%%%%Page: %zu %zu\n",
1.50 kristaps 854: p->ps->pages + 1,
855: p->ps->pages + 1);
1.37 kristaps 856: ps_printf(p, "/%s %zu selectfont\n",
1.50 kristaps 857: fonts[(int)p->ps->lastf].name,
858: p->ps->scale);
1.37 kristaps 859: } else {
1.50 kristaps 860: pdf_obj(p, p->ps->pdfbody +
861: p->ps->pages * 4);
1.37 kristaps 862: ps_printf(p, "<<\n");
863: ps_printf(p, "/Length %zu 0 R\n",
1.50 kristaps 864: p->ps->pdfbody + 1 +
865: p->ps->pages * 4);
1.37 kristaps 866: ps_printf(p, ">>\nstream\n");
867: }
1.50 kristaps 868: p->ps->pdflastpg = p->ps->pdfbytes;
869: p->ps->flags &= ~PS_NEWPAGE;
1.32 kristaps 870: }
871:
872: /*
873: * If we're not in a PostScript "word" context, then open one
874: * now at the current cursor.
875: */
1.30 kristaps 876:
1.50 kristaps 877: if ( ! (PS_INLINE & p->ps->flags)) {
1.37 kristaps 878: if (TERMTYPE_PS != p->type) {
879: ps_printf(p, "BT\n/F%d %zu Tf\n",
1.50 kristaps 880: (int)p->ps->lastf,
881: p->ps->scale);
1.37 kristaps 882: ps_printf(p, "%.3f %.3f Td\n(",
1.50 kristaps 883: AFM2PNT(p, p->ps->pscol),
884: AFM2PNT(p, p->ps->psrow));
1.37 kristaps 885: } else
886: ps_printf(p, "%.3f %.3f moveto\n(",
1.50 kristaps 887: AFM2PNT(p, p->ps->pscol),
888: AFM2PNT(p, p->ps->psrow));
889: p->ps->flags |= PS_INLINE;
1.2 kristaps 890: }
891:
1.50 kristaps 892: assert( ! (PS_NEWPAGE & p->ps->flags));
1.29 kristaps 893:
1.2 kristaps 894: /*
895: * We need to escape these characters as per the PostScript
896: * specification. We would also escape non-graphable characters
897: * (like tabs), but none of them would get to this point and
898: * it's superfluous to abort() on them.
899: */
900:
901: switch (c) {
902: case ('('):
903: /* FALLTHROUGH */
904: case (')'):
905: /* FALLTHROUGH */
906: case ('\\'):
1.4 kristaps 907: ps_putchar(p, '\\');
1.2 kristaps 908: break;
909: default:
910: break;
911: }
912:
913: /* Write the character and adjust where we are on the page. */
1.9 kristaps 914:
1.50 kristaps 915: f = (int)p->ps->lastf;
1.13 kristaps 916:
1.45 schwarze 917: if (c <= 32 || (c - 32 >= MAXCHAR)) {
1.13 kristaps 918: ps_putchar(p, ' ');
1.50 kristaps 919: p->ps->pscol += (size_t)fonts[f].gly[0].wx;
1.13 kristaps 920: return;
921: }
922:
1.25 kristaps 923: ps_putchar(p, (char)c);
1.14 kristaps 924: c -= 32;
1.50 kristaps 925: p->ps->pscol += (size_t)fonts[f].gly[c].wx;
1.2 kristaps 926: }
927:
928:
929: static void
1.9 kristaps 930: ps_pclose(struct termp *p)
931: {
932:
933: /*
934: * Spit out that we're exiting a word context (this is a
935: * "partial close" because we don't check the last-char buffer
936: * or anything).
937: */
938:
1.50 kristaps 939: if ( ! (PS_INLINE & p->ps->flags))
1.9 kristaps 940: return;
941:
1.37 kristaps 942: if (TERMTYPE_PS != p->type) {
943: ps_printf(p, ") Tj\nET\n");
944: } else
945: ps_printf(p, ") show\n");
946:
1.50 kristaps 947: p->ps->flags &= ~PS_INLINE;
1.9 kristaps 948: }
949:
950:
951: static void
952: ps_fclose(struct termp *p)
953: {
954:
955: /*
956: * Strong closure: if we have a last-char, spit it out after
957: * checking that we're in the right font mode. This will of
958: * course open a new scope, if applicable.
959: *
960: * Following this, close out any scope that's open.
961: */
962:
1.50 kristaps 963: if ('\0' != p->ps->last) {
964: if (p->ps->lastf != TERMFONT_NONE) {
1.9 kristaps 965: ps_pclose(p);
966: ps_setfont(p, TERMFONT_NONE);
967: }
1.50 kristaps 968: ps_pletter(p, p->ps->last);
969: p->ps->last = '\0';
1.9 kristaps 970: }
971:
1.50 kristaps 972: if ( ! (PS_INLINE & p->ps->flags))
1.9 kristaps 973: return;
974:
975: ps_pclose(p);
976: }
977:
978:
979: static void
1.49 kristaps 980: ps_letter(struct termp *p, int arg)
1.8 kristaps 981: {
1.49 kristaps 982: char cc, c;
983:
984: /* LINTED */
985: c = arg >= 128 || arg <= 0 ? '?' : arg;
1.9 kristaps 986:
987: /*
988: * State machine dictates whether to buffer the last character
989: * or not. Basically, encoded words are detected by checking if
990: * we're an "8" and switching on the buffer. Then we put "8" in
991: * our buffer, and on the next charater, flush both character
992: * and buffer. Thus, "regular" words are detected by having a
993: * regular character and a regular buffer character.
994: */
995:
1.50 kristaps 996: if ('\0' == p->ps->last) {
1.8 kristaps 997: assert(8 != c);
1.50 kristaps 998: p->ps->last = c;
1.8 kristaps 999: return;
1.50 kristaps 1000: } else if (8 == p->ps->last) {
1.8 kristaps 1001: assert(8 != c);
1.50 kristaps 1002: p->ps->last = '\0';
1.8 kristaps 1003: } else if (8 == c) {
1.50 kristaps 1004: assert(8 != p->ps->last);
1005: if ('_' == p->ps->last) {
1006: if (p->ps->lastf != TERMFONT_UNDER) {
1.9 kristaps 1007: ps_pclose(p);
1008: ps_setfont(p, TERMFONT_UNDER);
1009: }
1.50 kristaps 1010: } else if (p->ps->lastf != TERMFONT_BOLD) {
1.9 kristaps 1011: ps_pclose(p);
1012: ps_setfont(p, TERMFONT_BOLD);
1013: }
1.50 kristaps 1014: p->ps->last = c;
1.8 kristaps 1015: return;
1016: } else {
1.50 kristaps 1017: if (p->ps->lastf != TERMFONT_NONE) {
1.9 kristaps 1018: ps_pclose(p);
1019: ps_setfont(p, TERMFONT_NONE);
1020: }
1.50 kristaps 1021: cc = p->ps->last;
1022: p->ps->last = c;
1.8 kristaps 1023: c = cc;
1024: }
1025:
1.9 kristaps 1026: ps_pletter(p, c);
1.8 kristaps 1027: }
1028:
1029:
1030: static void
1.2 kristaps 1031: ps_advance(struct termp *p, size_t len)
1032: {
1033:
1.9 kristaps 1034: /*
1035: * Advance some spaces. This can probably be made smarter,
1036: * i.e., to have multiple space-separated words in the same
1037: * scope, but this is easier: just close out the current scope
1038: * and readjust our column settings.
1039: */
1.8 kristaps 1040:
1.9 kristaps 1041: ps_fclose(p);
1.50 kristaps 1042: p->ps->pscol += len;
1.2 kristaps 1043: }
1044:
1045:
1046: static void
1047: ps_endline(struct termp *p)
1048: {
1.8 kristaps 1049:
1.9 kristaps 1050: /* Close out any scopes we have open: we're at eoln. */
1051:
1052: ps_fclose(p);
1.2 kristaps 1053:
1.9 kristaps 1054: /*
1055: * If we're in the margin, don't try to recalculate our current
1056: * row. XXX: if the column tries to be fancy with multiple
1057: * lines, we'll do nasty stuff.
1058: */
1.2 kristaps 1059:
1.50 kristaps 1060: if (PS_MARGINS & p->ps->flags)
1.29 kristaps 1061: return;
1062:
1063: /* Left-justify. */
1064:
1.50 kristaps 1065: p->ps->pscol = p->ps->left;
1.29 kristaps 1066:
1067: /* If we haven't printed anything, return. */
1068:
1.50 kristaps 1069: if (PS_NEWPAGE & p->ps->flags)
1.2 kristaps 1070: return;
1071:
1.9 kristaps 1072: /*
1073: * Put us down a line. If we're at the page bottom, spit out a
1074: * showpage and restart our row.
1075: */
1076:
1.50 kristaps 1077: if (p->ps->psrow >= p->ps->lineheight +
1078: p->ps->bottom) {
1079: p->ps->psrow -= p->ps->lineheight;
1.2 kristaps 1080: return;
1081: }
1082:
1.37 kristaps 1083: ps_closepage(p);
1.1 kristaps 1084: }
1.9 kristaps 1085:
1086:
1087: static void
1088: ps_setfont(struct termp *p, enum termfont f)
1089: {
1090:
1.16 kristaps 1091: assert(f < TERMFONT__MAX);
1.50 kristaps 1092: p->ps->lastf = f;
1.32 kristaps 1093:
1094: /*
1095: * If we're still at the top of the page, let the font-setting
1096: * be delayed until we actually have stuff to print.
1097: */
1098:
1.50 kristaps 1099: if (PS_NEWPAGE & p->ps->flags)
1.32 kristaps 1100: return;
1101:
1.37 kristaps 1102: if (TERMTYPE_PS == p->type)
1103: ps_printf(p, "/%s %zu selectfont\n",
1104: fonts[(int)f].name,
1.50 kristaps 1105: p->ps->scale);
1.37 kristaps 1106: else
1107: ps_printf(p, "/F%d %zu Tf\n",
1108: (int)f,
1.50 kristaps 1109: p->ps->scale);
1.9 kristaps 1110: }
1111:
1.11 kristaps 1112:
1.12 kristaps 1113: /* ARGSUSED */
1.11 kristaps 1114: static size_t
1.49 kristaps 1115: ps_width(const struct termp *p, int c)
1.11 kristaps 1116: {
1117:
1.14 kristaps 1118: if (c <= 32 || c - 32 >= MAXCHAR)
1.36 kristaps 1119: return((size_t)fonts[(int)TERMFONT_NONE].gly[0].wx);
1.14 kristaps 1120:
1121: c -= 32;
1.49 kristaps 1122: return((size_t)fonts[(int)TERMFONT_NONE].gly[c].wx);
1.11 kristaps 1123: }
1.19 kristaps 1124:
1125:
1.20 kristaps 1126: static double
1.19 kristaps 1127: ps_hspan(const struct termp *p, const struct roffsu *su)
1128: {
1129: double r;
1130:
1131: /*
1132: * All of these measurements are derived by converting from the
1.21 kristaps 1133: * native measurement to AFM units.
1.19 kristaps 1134: */
1135:
1136: switch (su->unit) {
1137: case (SCALE_CM):
1.21 kristaps 1138: r = PNT2AFM(p, su->scale * 28.34);
1.19 kristaps 1139: break;
1140: case (SCALE_IN):
1.21 kristaps 1141: r = PNT2AFM(p, su->scale * 72);
1.19 kristaps 1142: break;
1143: case (SCALE_PC):
1.21 kristaps 1144: r = PNT2AFM(p, su->scale * 12);
1.19 kristaps 1145: break;
1146: case (SCALE_PT):
1.21 kristaps 1147: r = PNT2AFM(p, su->scale * 100);
1.19 kristaps 1148: break;
1149: case (SCALE_EM):
1.36 kristaps 1150: r = su->scale *
1.19 kristaps 1151: fonts[(int)TERMFONT_NONE].gly[109 - 32].wx;
1152: break;
1153: case (SCALE_MM):
1.21 kristaps 1154: r = PNT2AFM(p, su->scale * 2.834);
1.19 kristaps 1155: break;
1156: case (SCALE_EN):
1.36 kristaps 1157: r = su->scale *
1.19 kristaps 1158: fonts[(int)TERMFONT_NONE].gly[110 - 32].wx;
1159: break;
1160: case (SCALE_VS):
1.50 kristaps 1161: r = su->scale * p->ps->lineheight;
1.19 kristaps 1162: break;
1163: default:
1164: r = su->scale;
1165: break;
1166: }
1167:
1.20 kristaps 1168: return(r);
1.50 kristaps 1169: }
1170:
1171: static void
1172: ps_growbuf(struct termp *p, size_t sz)
1173: {
1174: if (p->ps->psmargcur + sz <= p->ps->psmargsz)
1175: return;
1176:
1177: if (sz < PS_BUFSLOP)
1178: sz = PS_BUFSLOP;
1179:
1180: p->ps->psmargsz += sz;
1181:
1182: p->ps->psmarg = mandoc_realloc
1183: (p->ps->psmarg, p->ps->psmargsz);
1.19 kristaps 1184: }
1185:
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