Annotation of mandoc/term_ps.c, Revision 1.62
1.62 ! schwarze 1: /* $Id: term_ps.c,v 1.61 2014/07/27 21:53:17 schwarze Exp $ */
1.1 kristaps 2: /*
1.53 schwarze 3: * Copyright (c) 2010, 2011 Kristaps Dzonsons <kristaps@bsd.lv>
1.57 schwarze 4: * Copyright (c) 2014 Ingo Schwarze <schwarze@openbsd.org>
1.1 kristaps 5: *
6: * Permission to use, copy, modify, and distribute this software for any
7: * purpose with or without fee is hereby granted, provided that the above
8: * copyright notice and this permission notice appear in all copies.
9: *
10: * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
11: * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
12: * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
13: * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
14: * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
15: * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
16: * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
17: */
18: #ifdef HAVE_CONFIG_H
19: #include "config.h"
20: #endif
21:
1.43 kristaps 22: #include <sys/types.h>
1.4 kristaps 23:
1.2 kristaps 24: #include <assert.h>
1.4 kristaps 25: #include <stdarg.h>
1.17 kristaps 26: #include <stdint.h>
1.2 kristaps 27: #include <stdio.h>
1.1 kristaps 28: #include <stdlib.h>
1.4 kristaps 29: #include <string.h>
1.13 kristaps 30: #include <time.h>
1.26 kristaps 31: #include <unistd.h>
1.1 kristaps 32:
1.42 schwarze 33: #include "mandoc.h"
1.56 schwarze 34: #include "mandoc_aux.h"
1.1 kristaps 35: #include "out.h"
36: #include "main.h"
37: #include "term.h"
38:
1.50 kristaps 39: /* These work the buffer used by the header and footer. */
40: #define PS_BUFSLOP 128
41:
1.21 kristaps 42: /* Convert PostScript point "x" to an AFM unit. */
1.59 schwarze 43: #define PNT2AFM(p, x) \
1.50 kristaps 44: (size_t)((double)(x) * (1000.0 / (double)(p)->ps->scale))
1.21 kristaps 45:
46: /* Convert an AFM unit "x" to a PostScript points */
1.59 schwarze 47: #define AFM2PNT(p, x) \
1.50 kristaps 48: ((double)(x) / (1000.0 / (double)(p)->ps->scale))
1.21 kristaps 49:
1.13 kristaps 50: struct glyph {
1.36 kristaps 51: unsigned short wx; /* WX in AFM */
1.13 kristaps 52: };
53:
54: struct font {
55: const char *name; /* FontName in AFM */
1.15 kristaps 56: #define MAXCHAR 95 /* total characters we can handle */
1.13 kristaps 57: struct glyph gly[MAXCHAR]; /* glyph metrics */
58: };
59:
1.50 kristaps 60: struct termp_ps {
61: int flags;
62: #define PS_INLINE (1 << 0) /* we're in a word */
63: #define PS_MARGINS (1 << 1) /* we're in the margins */
64: #define PS_NEWPAGE (1 << 2) /* new page, no words yet */
65: size_t pscol; /* visible column (AFM units) */
66: size_t psrow; /* visible row (AFM units) */
67: char *psmarg; /* margin buf */
68: size_t psmargsz; /* margin buf size */
69: size_t psmargcur; /* cur index in margin buf */
70: char last; /* character buffer */
71: enum termfont lastf; /* last set font */
72: size_t scale; /* font scaling factor */
73: size_t pages; /* number of pages shown */
74: size_t lineheight; /* line height (AFM units) */
75: size_t top; /* body top (AFM units) */
76: size_t bottom; /* body bottom (AFM units) */
77: size_t height; /* page height (AFM units */
78: size_t width; /* page width (AFM units) */
1.57 schwarze 79: size_t lastwidth; /* page width before last ll */
1.50 kristaps 80: size_t left; /* body left (AFM units) */
81: size_t header; /* header pos (AFM units) */
82: size_t footer; /* footer pos (AFM units) */
1.59 schwarze 83: size_t pdfbytes; /* current output byte */
1.50 kristaps 84: size_t pdflastpg; /* byte of last page mark */
85: size_t pdfbody; /* start of body object */
86: size_t *pdfobjs; /* table of object offsets */
87: size_t pdfobjsz; /* size of pdfobjs */
88: };
89:
90: static double ps_hspan(const struct termp *,
91: const struct roffsu *);
92: static size_t ps_width(const struct termp *, int);
93: static void ps_advance(struct termp *, size_t);
94: static void ps_begin(struct termp *);
95: static void ps_closepage(struct termp *);
96: static void ps_end(struct termp *);
97: static void ps_endline(struct termp *);
98: static void ps_fclose(struct termp *);
99: static void ps_growbuf(struct termp *, size_t);
100: static void ps_letter(struct termp *, int);
101: static void ps_pclose(struct termp *);
102: static void ps_pletter(struct termp *, int);
1.55 joerg 103: #if __GNUC__ - 0 >= 4
104: __attribute__((__format__ (__printf__, 2, 3)))
105: #endif
1.50 kristaps 106: static void ps_printf(struct termp *, const char *, ...);
107: static void ps_putchar(struct termp *, char);
108: static void ps_setfont(struct termp *, enum termfont);
1.58 schwarze 109: static void ps_setwidth(struct termp *, int, size_t);
1.50 kristaps 110: static struct termp *pspdf_alloc(char *);
111: static void pdf_obj(struct termp *, size_t);
112:
1.13 kristaps 113: /*
114: * We define, for the time being, three fonts: bold, oblique/italic, and
115: * normal (roman). The following table hard-codes the font metrics for
116: * ASCII, i.e., 32--127.
117: */
118:
1.16 kristaps 119: static const struct font fonts[TERMFONT__MAX] = {
1.24 kristaps 120: { "Times-Roman", {
121: { 250 },
122: { 333 },
123: { 408 },
124: { 500 },
125: { 500 },
126: { 833 },
127: { 778 },
128: { 333 },
129: { 333 },
130: { 333 },
131: { 500 },
132: { 564 },
133: { 250 },
134: { 333 },
135: { 250 },
136: { 278 },
137: { 500 },
138: { 500 },
139: { 500 },
140: { 500 },
141: { 500 },
142: { 500 },
143: { 500 },
144: { 500 },
145: { 500 },
146: { 500 },
147: { 278 },
148: { 278 },
149: { 564 },
150: { 564 },
151: { 564 },
152: { 444 },
153: { 921 },
154: { 722 },
155: { 667 },
156: { 667 },
157: { 722 },
158: { 611 },
159: { 556 },
160: { 722 },
161: { 722 },
162: { 333 },
163: { 389 },
164: { 722 },
165: { 611 },
166: { 889 },
167: { 722 },
168: { 722 },
169: { 556 },
170: { 722 },
171: { 667 },
172: { 556 },
173: { 611 },
174: { 722 },
175: { 722 },
176: { 944 },
177: { 722 },
178: { 722 },
179: { 611 },
180: { 333 },
181: { 278 },
182: { 333 },
183: { 469 },
184: { 500 },
185: { 333 },
186: { 444 },
187: { 500 },
188: { 444 },
189: { 500},
190: { 444},
191: { 333},
192: { 500},
193: { 500},
194: { 278},
195: { 278},
196: { 500},
197: { 278},
198: { 778},
199: { 500},
200: { 500},
201: { 500},
202: { 500},
203: { 333},
204: { 389},
205: { 278},
206: { 500},
207: { 500},
208: { 722},
209: { 500},
210: { 500},
211: { 444},
212: { 480},
213: { 200},
214: { 480},
215: { 541},
216: } },
217: { "Times-Bold", {
218: { 250 },
219: { 333 },
220: { 555 },
221: { 500 },
222: { 500 },
223: { 1000 },
224: { 833 },
225: { 333 },
226: { 333 },
227: { 333 },
228: { 500 },
229: { 570 },
230: { 250 },
231: { 333 },
232: { 250 },
233: { 278 },
234: { 500 },
235: { 500 },
236: { 500 },
237: { 500 },
238: { 500 },
239: { 500 },
240: { 500 },
241: { 500 },
242: { 500 },
243: { 500 },
244: { 333 },
245: { 333 },
246: { 570 },
247: { 570 },
248: { 570 },
249: { 500 },
250: { 930 },
251: { 722 },
252: { 667 },
253: { 722 },
254: { 722 },
255: { 667 },
256: { 611 },
257: { 778 },
258: { 778 },
259: { 389 },
260: { 500 },
261: { 778 },
262: { 667 },
263: { 944 },
264: { 722 },
265: { 778 },
266: { 611 },
267: { 778 },
268: { 722 },
269: { 556 },
270: { 667 },
271: { 722 },
272: { 722 },
273: { 1000 },
274: { 722 },
275: { 722 },
276: { 667 },
277: { 333 },
278: { 278 },
279: { 333 },
280: { 581 },
281: { 500 },
282: { 333 },
283: { 500 },
284: { 556 },
285: { 444 },
1.22 kristaps 286: { 556 },
1.24 kristaps 287: { 444 },
288: { 333 },
1.22 kristaps 289: { 500 },
1.24 kristaps 290: { 556 },
1.22 kristaps 291: { 278 },
1.24 kristaps 292: { 333 },
293: { 556 },
1.22 kristaps 294: { 278 },
1.24 kristaps 295: { 833 },
1.22 kristaps 296: { 556 },
1.24 kristaps 297: { 500 },
1.22 kristaps 298: { 556 },
299: { 556 },
300: { 444 },
1.24 kristaps 301: { 389 },
302: { 333 },
1.22 kristaps 303: { 556 },
304: { 500 },
1.24 kristaps 305: { 722 },
306: { 500 },
1.22 kristaps 307: { 500 },
1.24 kristaps 308: { 444 },
309: { 394 },
310: { 220 },
311: { 394 },
312: { 520 },
1.13 kristaps 313: } },
1.24 kristaps 314: { "Times-Italic", {
315: { 250 },
316: { 333 },
317: { 420 },
318: { 500 },
319: { 500 },
320: { 833 },
321: { 778 },
322: { 333 },
323: { 333 },
324: { 333 },
325: { 500 },
326: { 675 },
327: { 250 },
328: { 333 },
329: { 250 },
330: { 278 },
331: { 500 },
332: { 500 },
333: { 500 },
334: { 500 },
335: { 500 },
336: { 500 },
337: { 500 },
338: { 500 },
339: { 500 },
340: { 500 },
341: { 333 },
342: { 333 },
343: { 675 },
344: { 675 },
345: { 675 },
346: { 500 },
347: { 920 },
348: { 611 },
349: { 611 },
350: { 667 },
351: { 722 },
352: { 611 },
353: { 611 },
354: { 722 },
355: { 722 },
356: { 333 },
357: { 444 },
358: { 667 },
359: { 556 },
360: { 833 },
361: { 667 },
362: { 722 },
363: { 611 },
364: { 722 },
365: { 611 },
366: { 500 },
367: { 556 },
368: { 722 },
369: { 611 },
370: { 833 },
371: { 611 },
372: { 556 },
373: { 556 },
374: { 389 },
375: { 278 },
376: { 389 },
377: { 422 },
378: { 500 },
379: { 333 },
380: { 500 },
381: { 500 },
382: { 444 },
1.22 kristaps 383: { 500 },
1.24 kristaps 384: { 444 },
385: { 278 },
1.22 kristaps 386: { 500 },
387: { 500 },
388: { 278 },
1.24 kristaps 389: { 278 },
390: { 444 },
391: { 278 },
392: { 722 },
393: { 500 },
394: { 500 },
395: { 500 },
1.22 kristaps 396: { 500 },
1.24 kristaps 397: { 389 },
398: { 389 },
1.22 kristaps 399: { 278 },
400: { 500 },
1.24 kristaps 401: { 444 },
402: { 667 },
403: { 444 },
404: { 444 },
405: { 389 },
406: { 400 },
1.22 kristaps 407: { 275 },
1.24 kristaps 408: { 400 },
409: { 541 },
1.13 kristaps 410: } },
411: };
412:
1.37 kristaps 413: void *
414: pdf_alloc(char *outopts)
415: {
416: struct termp *p;
417:
1.38 kristaps 418: if (NULL != (p = pspdf_alloc(outopts)))
419: p->type = TERMTYPE_PDF;
1.37 kristaps 420:
421: return(p);
422: }
1.2 kristaps 423:
1.1 kristaps 424: void *
1.17 kristaps 425: ps_alloc(char *outopts)
1.1 kristaps 426: {
427: struct termp *p;
1.37 kristaps 428:
1.38 kristaps 429: if (NULL != (p = pspdf_alloc(outopts)))
430: p->type = TERMTYPE_PS;
1.37 kristaps 431:
432: return(p);
433: }
434:
435: static struct termp *
436: pspdf_alloc(char *outopts)
437: {
438: struct termp *p;
1.52 kristaps 439: unsigned int pagex, pagey;
440: size_t marginx, marginy, lineheight;
1.17 kristaps 441: const char *toks[2];
1.25 kristaps 442: const char *pp;
1.17 kristaps 443: char *v;
1.1 kristaps 444:
1.51 kristaps 445: p = mandoc_calloc(1, sizeof(struct termp));
446: p->enc = TERMENC_ASCII;
1.50 kristaps 447: p->ps = mandoc_calloc(1, sizeof(struct termp_ps));
1.1 kristaps 448:
1.19 kristaps 449: p->advance = ps_advance;
1.2 kristaps 450: p->begin = ps_begin;
451: p->end = ps_end;
452: p->endline = ps_endline;
1.19 kristaps 453: p->hspan = ps_hspan;
454: p->letter = ps_letter;
1.57 schwarze 455: p->setwidth = ps_setwidth;
1.11 kristaps 456: p->width = ps_width;
1.59 schwarze 457:
1.17 kristaps 458: toks[0] = "paper";
459: toks[1] = NULL;
460:
1.25 kristaps 461: pp = NULL;
1.19 kristaps 462:
1.17 kristaps 463: while (outopts && *outopts)
464: switch (getsubopt(&outopts, UNCONST(toks), &v)) {
1.59 schwarze 465: case 0:
1.25 kristaps 466: pp = v;
1.17 kristaps 467: break;
468: default:
469: break;
470: }
1.16 kristaps 471:
1.25 kristaps 472: /* Default to US letter (millimetres). */
473:
1.31 kristaps 474: pagex = 216;
475: pagey = 279;
1.25 kristaps 476:
477: /*
478: * The ISO-269 paper sizes can be calculated automatically, but
479: * it would require bringing in -lm for pow() and I'd rather not
480: * do that. So just do it the easy way for now. Since this
481: * only happens once, I'm not terribly concerned.
482: */
483:
484: if (pp && strcasecmp(pp, "letter")) {
485: if (0 == strcasecmp(pp, "a3")) {
486: pagex = 297;
487: pagey = 420;
488: } else if (0 == strcasecmp(pp, "a4")) {
489: pagex = 210;
490: pagey = 297;
491: } else if (0 == strcasecmp(pp, "a5")) {
492: pagex = 148;
493: pagey = 210;
494: } else if (0 == strcasecmp(pp, "legal")) {
495: pagex = 216;
496: pagey = 356;
1.52 kristaps 497: } else if (2 != sscanf(pp, "%ux%u", &pagex, &pagey))
1.25 kristaps 498: fprintf(stderr, "%s: Unknown paper\n", pp);
1.54 schwarze 499: }
1.27 kristaps 500:
1.59 schwarze 501: /*
1.27 kristaps 502: * This MUST be defined before any PNT2AFM or AFM2PNT
503: * calculations occur.
504: */
505:
1.50 kristaps 506: p->ps->scale = 11;
1.27 kristaps 507:
1.25 kristaps 508: /* Remember millimetres -> AFM units. */
509:
510: pagex = PNT2AFM(p, ((double)pagex * 2.834));
511: pagey = PNT2AFM(p, ((double)pagey * 2.834));
512:
1.28 kristaps 513: /* Margins are 1/9 the page x and y. */
1.27 kristaps 514:
1.59 schwarze 515: marginx = (size_t)((double)pagex / 9.0);
516: marginy = (size_t)((double)pagey / 9.0);
1.27 kristaps 517:
1.31 kristaps 518: /* Line-height is 1.4em. */
519:
1.50 kristaps 520: lineheight = PNT2AFM(p, ((double)p->ps->scale * 1.4));
1.16 kristaps 521:
1.57 schwarze 522: p->ps->width = p->ps->lastwidth = (size_t)pagex;
1.52 kristaps 523: p->ps->height = (size_t)pagey;
1.50 kristaps 524: p->ps->header = pagey - (marginy / 2) - (lineheight / 2);
525: p->ps->top = pagey - marginy;
526: p->ps->footer = (marginy / 2) - (lineheight / 2);
527: p->ps->bottom = marginy;
528: p->ps->left = marginx;
529: p->ps->lineheight = lineheight;
1.16 kristaps 530:
1.28 kristaps 531: p->defrmargin = pagex - (marginx * 2);
1.1 kristaps 532: return(p);
1.57 schwarze 533: }
534:
535: static void
1.58 schwarze 536: ps_setwidth(struct termp *p, int iop, size_t width)
1.57 schwarze 537: {
538: size_t lastwidth;
539:
540: lastwidth = p->ps->width;
1.58 schwarze 541: if (0 < iop)
542: p->ps->width += width;
543: else if (0 > iop)
544: p->ps->width -= width;
545: else
546: p->ps->width = width ? width : p->ps->lastwidth;
1.57 schwarze 547: p->ps->lastwidth = lastwidth;
1.1 kristaps 548: }
549:
550: void
1.37 kristaps 551: pspdf_free(void *arg)
1.1 kristaps 552: {
1.4 kristaps 553: struct termp *p;
554:
555: p = (struct termp *)arg;
556:
1.50 kristaps 557: if (p->ps->psmarg)
558: free(p->ps->psmarg);
559: if (p->ps->pdfobjs)
560: free(p->ps->pdfobjs);
1.4 kristaps 561:
1.50 kristaps 562: free(p->ps);
1.4 kristaps 563: term_free(p);
564: }
565:
566: static void
567: ps_printf(struct termp *p, const char *fmt, ...)
568: {
569: va_list ap;
1.37 kristaps 570: int pos, len;
1.4 kristaps 571:
572: va_start(ap, fmt);
573:
574: /*
575: * If we're running in regular mode, then pipe directly into
576: * vprintf(). If we're processing margins, then push the data
577: * into our growable margin buffer.
578: */
1.1 kristaps 579:
1.50 kristaps 580: if ( ! (PS_MARGINS & p->ps->flags)) {
1.37 kristaps 581: len = vprintf(fmt, ap);
1.4 kristaps 582: va_end(ap);
1.59 schwarze 583: p->ps->pdfbytes += len < 0 ? 0 : (size_t)len;
1.4 kristaps 584: return;
585: }
586:
1.59 schwarze 587: /*
1.4 kristaps 588: * XXX: I assume that the in-margin print won't exceed
589: * PS_BUFSLOP (128 bytes), which is reasonable but still an
590: * assumption that will cause pukeage if it's not the case.
591: */
592:
1.40 joerg 593: ps_growbuf(p, PS_BUFSLOP);
1.4 kristaps 594:
1.50 kristaps 595: pos = (int)p->ps->psmargcur;
1.54 schwarze 596: vsnprintf(&p->ps->psmarg[pos], PS_BUFSLOP, fmt, ap);
1.5 kristaps 597:
598: va_end(ap);
1.37 kristaps 599:
1.50 kristaps 600: p->ps->psmargcur = strlen(p->ps->psmarg);
1.4 kristaps 601: }
602:
603: static void
604: ps_putchar(struct termp *p, char c)
605: {
606: int pos;
607:
608: /* See ps_printf(). */
609:
1.50 kristaps 610: if ( ! (PS_MARGINS & p->ps->flags)) {
1.4 kristaps 611: putchar(c);
1.50 kristaps 612: p->ps->pdfbytes++;
1.4 kristaps 613: return;
614: }
615:
1.40 joerg 616: ps_growbuf(p, 2);
1.4 kristaps 617:
1.50 kristaps 618: pos = (int)p->ps->psmargcur++;
619: p->ps->psmarg[pos++] = c;
620: p->ps->psmarg[pos] = '\0';
1.2 kristaps 621: }
622:
1.37 kristaps 623: static void
1.39 kristaps 624: pdf_obj(struct termp *p, size_t obj)
625: {
626:
627: assert(obj > 0);
628:
1.50 kristaps 629: if ((obj - 1) >= p->ps->pdfobjsz) {
630: p->ps->pdfobjsz = obj + 128;
1.60 schwarze 631: p->ps->pdfobjs = mandoc_reallocarray(p->ps->pdfobjs,
632: p->ps->pdfobjsz, sizeof(size_t));
1.39 kristaps 633: }
634:
1.50 kristaps 635: p->ps->pdfobjs[(int)obj - 1] = p->ps->pdfbytes;
1.39 kristaps 636: ps_printf(p, "%zu 0 obj\n", obj);
637: }
638:
639: static void
1.37 kristaps 640: ps_closepage(struct termp *p)
641: {
642: int i;
1.38 kristaps 643: size_t len, base;
644:
645: /*
646: * Close out a page that we've already flushed to output. In
647: * PostScript, we simply note that the page must be showed. In
648: * PDF, we must now create the Length, Resource, and Page node
649: * for the page contents.
650: */
1.37 kristaps 651:
1.50 kristaps 652: assert(p->ps->psmarg && p->ps->psmarg[0]);
653: ps_printf(p, "%s", p->ps->psmarg);
1.37 kristaps 654:
1.38 kristaps 655: if (TERMTYPE_PS != p->type) {
1.37 kristaps 656: ps_printf(p, "ET\n");
1.38 kristaps 657:
1.50 kristaps 658: len = p->ps->pdfbytes - p->ps->pdflastpg;
659: base = p->ps->pages * 4 + p->ps->pdfbody;
1.38 kristaps 660:
661: ps_printf(p, "endstream\nendobj\n");
662:
663: /* Length of content. */
1.39 kristaps 664: pdf_obj(p, base + 1);
1.38 kristaps 665: ps_printf(p, "%zu\nendobj\n", len);
666:
667: /* Resource for content. */
1.39 kristaps 668: pdf_obj(p, base + 2);
1.38 kristaps 669: ps_printf(p, "<<\n/ProcSet [/PDF /Text]\n");
1.37 kristaps 670: ps_printf(p, "/Font <<\n");
1.59 schwarze 671: for (i = 0; i < (int)TERMFONT__MAX; i++)
1.37 kristaps 672: ps_printf(p, "/F%d %d 0 R\n", i, 3 + i);
1.38 kristaps 673: ps_printf(p, ">>\n>>\n");
674:
675: /* Page node. */
1.39 kristaps 676: pdf_obj(p, base + 3);
677: ps_printf(p, "<<\n");
1.37 kristaps 678: ps_printf(p, "/Type /Page\n");
679: ps_printf(p, "/Parent 2 0 R\n");
1.38 kristaps 680: ps_printf(p, "/Resources %zu 0 R\n", base + 2);
681: ps_printf(p, "/Contents %zu 0 R\n", base);
682: ps_printf(p, ">>\nendobj\n");
683: } else
684: ps_printf(p, "showpage\n");
1.37 kristaps 685:
1.50 kristaps 686: p->ps->pages++;
687: p->ps->psrow = p->ps->top;
688: assert( ! (PS_NEWPAGE & p->ps->flags));
689: p->ps->flags |= PS_NEWPAGE;
1.37 kristaps 690: }
691:
1.2 kristaps 692: static void
693: ps_end(struct termp *p)
694: {
1.38 kristaps 695: size_t i, xref, base;
1.2 kristaps 696:
1.4 kristaps 697: /*
698: * At the end of the file, do one last showpage. This is the
699: * same behaviour as groff(1) and works for multiple pages as
700: * well as just one.
701: */
702:
1.50 kristaps 703: if ( ! (PS_NEWPAGE & p->ps->flags)) {
704: assert(0 == p->ps->flags);
705: assert('\0' == p->ps->last);
1.37 kristaps 706: ps_closepage(p);
1.30 kristaps 707: }
1.16 kristaps 708:
1.37 kristaps 709: if (TERMTYPE_PS == p->type) {
710: ps_printf(p, "%%%%Trailer\n");
1.50 kristaps 711: ps_printf(p, "%%%%Pages: %zu\n", p->ps->pages);
1.37 kristaps 712: ps_printf(p, "%%%%EOF\n");
713: return;
1.59 schwarze 714: }
1.37 kristaps 715:
1.39 kristaps 716: pdf_obj(p, 2);
717: ps_printf(p, "<<\n/Type /Pages\n");
1.37 kristaps 718: ps_printf(p, "/MediaBox [0 0 %zu %zu]\n",
1.50 kristaps 719: (size_t)AFM2PNT(p, p->ps->width),
720: (size_t)AFM2PNT(p, p->ps->height));
1.37 kristaps 721:
1.50 kristaps 722: ps_printf(p, "/Count %zu\n", p->ps->pages);
1.37 kristaps 723: ps_printf(p, "/Kids [");
724:
1.50 kristaps 725: for (i = 0; i < p->ps->pages; i++)
1.59 schwarze 726: ps_printf(p, " %zu 0 R", i * 4 + p->ps->pdfbody + 3);
1.38 kristaps 727:
1.59 schwarze 728: base = (p->ps->pages - 1) * 4 + p->ps->pdfbody + 4;
1.38 kristaps 729:
730: ps_printf(p, "]\n>>\nendobj\n");
1.39 kristaps 731: pdf_obj(p, base);
1.37 kristaps 732: ps_printf(p, "<<\n");
733: ps_printf(p, "/Type /Catalog\n");
734: ps_printf(p, "/Pages 2 0 R\n");
735: ps_printf(p, ">>\n");
1.50 kristaps 736: xref = p->ps->pdfbytes;
1.37 kristaps 737: ps_printf(p, "xref\n");
1.38 kristaps 738: ps_printf(p, "0 %zu\n", base + 1);
1.39 kristaps 739: ps_printf(p, "0000000000 65535 f \n");
740:
741: for (i = 0; i < base; i++)
1.59 schwarze 742: ps_printf(p, "%.10zu 00000 n \n",
743: p->ps->pdfobjs[(int)i]);
1.39 kristaps 744:
1.37 kristaps 745: ps_printf(p, "trailer\n");
746: ps_printf(p, "<<\n");
1.38 kristaps 747: ps_printf(p, "/Size %zu\n", base + 1);
748: ps_printf(p, "/Root %zu 0 R\n", base);
1.37 kristaps 749: ps_printf(p, "/Info 1 0 R\n");
750: ps_printf(p, ">>\n");
751: ps_printf(p, "startxref\n");
752: ps_printf(p, "%zu\n", xref);
753: ps_printf(p, "%%%%EOF\n");
1.2 kristaps 754: }
755:
756: static void
757: ps_begin(struct termp *p)
758: {
1.13 kristaps 759: time_t t;
1.16 kristaps 760: int i;
1.2 kristaps 761:
1.59 schwarze 762: /*
1.9 kristaps 763: * Print margins into margin buffer. Nothing gets output to the
764: * screen yet, so we don't need to initialise the primary state.
1.2 kristaps 765: */
766:
1.50 kristaps 767: if (p->ps->psmarg) {
768: assert(p->ps->psmargsz);
769: p->ps->psmarg[0] = '\0';
1.4 kristaps 770: }
771:
1.50 kristaps 772: /*p->ps->pdfbytes = 0;*/
773: p->ps->psmargcur = 0;
774: p->ps->flags = PS_MARGINS;
775: p->ps->pscol = p->ps->left;
776: p->ps->psrow = p->ps->header;
1.4 kristaps 777:
1.9 kristaps 778: ps_setfont(p, TERMFONT_NONE);
1.4 kristaps 779:
780: (*p->headf)(p, p->argf);
781: (*p->endline)(p);
782:
1.50 kristaps 783: p->ps->pscol = p->ps->left;
784: p->ps->psrow = p->ps->footer;
1.4 kristaps 785:
786: (*p->footf)(p, p->argf);
787: (*p->endline)(p);
788:
1.50 kristaps 789: p->ps->flags &= ~PS_MARGINS;
1.9 kristaps 790:
1.50 kristaps 791: assert(0 == p->ps->flags);
792: assert(p->ps->psmarg);
793: assert('\0' != p->ps->psmarg[0]);
1.9 kristaps 794:
1.59 schwarze 795: /*
1.9 kristaps 796: * Print header and initialise page state. Following this,
797: * stuff gets printed to the screen, so make sure we're sane.
798: */
1.4 kristaps 799:
1.13 kristaps 800: t = time(NULL);
801:
1.37 kristaps 802: if (TERMTYPE_PS == p->type) {
803: ps_printf(p, "%%!PS-Adobe-3.0\n");
804: ps_printf(p, "%%%%CreationDate: %s", ctime(&t));
805: ps_printf(p, "%%%%DocumentData: Clean7Bit\n");
806: ps_printf(p, "%%%%Orientation: Portrait\n");
807: ps_printf(p, "%%%%Pages: (atend)\n");
808: ps_printf(p, "%%%%PageOrder: Ascend\n");
809: ps_printf(p, "%%%%DocumentMedia: "
1.59 schwarze 810: "Default %zu %zu 0 () ()\n",
811: (size_t)AFM2PNT(p, p->ps->width),
812: (size_t)AFM2PNT(p, p->ps->height));
1.37 kristaps 813: ps_printf(p, "%%%%DocumentNeededResources: font");
814:
815: for (i = 0; i < (int)TERMFONT__MAX; i++)
816: ps_printf(p, " %s", fonts[i].name);
817:
818: ps_printf(p, "\n%%%%EndComments\n");
819: } else {
820: ps_printf(p, "%%PDF-1.1\n");
1.39 kristaps 821: pdf_obj(p, 1);
1.37 kristaps 822: ps_printf(p, "<<\n");
823: ps_printf(p, ">>\n");
824: ps_printf(p, "endobj\n");
825:
826: for (i = 0; i < (int)TERMFONT__MAX; i++) {
1.39 kristaps 827: pdf_obj(p, (size_t)i + 3);
1.37 kristaps 828: ps_printf(p, "<<\n");
829: ps_printf(p, "/Type /Font\n");
830: ps_printf(p, "/Subtype /Type1\n");
1.55 joerg 831: ps_printf(p, "/Name /F%d\n", i);
1.37 kristaps 832: ps_printf(p, "/BaseFont /%s\n", fonts[i].name);
833: ps_printf(p, ">>\n");
834: }
835: }
1.16 kristaps 836:
1.50 kristaps 837: p->ps->pdfbody = (size_t)TERMFONT__MAX + 3;
838: p->ps->pscol = p->ps->left;
839: p->ps->psrow = p->ps->top;
840: p->ps->flags |= PS_NEWPAGE;
1.33 kristaps 841: ps_setfont(p, TERMFONT_NONE);
1.2 kristaps 842: }
843:
844: static void
1.13 kristaps 845: ps_pletter(struct termp *p, int c)
1.2 kristaps 846: {
1.14 kristaps 847: int f;
1.32 kristaps 848:
1.9 kristaps 849: /*
1.32 kristaps 850: * If we haven't opened a page context, then output that we're
851: * in a new page and make sure the font is correctly set.
1.9 kristaps 852: */
853:
1.50 kristaps 854: if (PS_NEWPAGE & p->ps->flags) {
1.37 kristaps 855: if (TERMTYPE_PS == p->type) {
1.59 schwarze 856: ps_printf(p, "%%%%Page: %zu %zu\n",
857: p->ps->pages + 1, p->ps->pages + 1);
858: ps_printf(p, "/%s %zu selectfont\n",
859: fonts[(int)p->ps->lastf].name,
860: p->ps->scale);
1.37 kristaps 861: } else {
1.59 schwarze 862: pdf_obj(p, p->ps->pdfbody +
863: p->ps->pages * 4);
1.37 kristaps 864: ps_printf(p, "<<\n");
1.59 schwarze 865: ps_printf(p, "/Length %zu 0 R\n",
866: p->ps->pdfbody + 1 + p->ps->pages * 4);
1.37 kristaps 867: ps_printf(p, ">>\nstream\n");
868: }
1.50 kristaps 869: p->ps->pdflastpg = p->ps->pdfbytes;
870: p->ps->flags &= ~PS_NEWPAGE;
1.32 kristaps 871: }
1.59 schwarze 872:
1.32 kristaps 873: /*
874: * If we're not in a PostScript "word" context, then open one
875: * now at the current cursor.
876: */
1.30 kristaps 877:
1.50 kristaps 878: if ( ! (PS_INLINE & p->ps->flags)) {
1.37 kristaps 879: if (TERMTYPE_PS != p->type) {
1.59 schwarze 880: ps_printf(p, "BT\n/F%d %zu Tf\n",
881: (int)p->ps->lastf, p->ps->scale);
1.37 kristaps 882: ps_printf(p, "%.3f %.3f Td\n(",
1.59 schwarze 883: AFM2PNT(p, p->ps->pscol),
884: AFM2PNT(p, p->ps->psrow));
1.37 kristaps 885: } else
1.59 schwarze 886: ps_printf(p, "%.3f %.3f moveto\n(",
887: AFM2PNT(p, p->ps->pscol),
888: AFM2PNT(p, p->ps->psrow));
1.50 kristaps 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) {
1.59 schwarze 902: case '(':
1.2 kristaps 903: /* FALLTHROUGH */
1.59 schwarze 904: case ')':
1.2 kristaps 905: /* FALLTHROUGH */
1.59 schwarze 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:
1.61 schwarze 917: if (c <= 32 || c - 32 >= MAXCHAR)
918: c = 32;
1.13 kristaps 919:
1.25 kristaps 920: ps_putchar(p, (char)c);
1.14 kristaps 921: c -= 32;
1.50 kristaps 922: p->ps->pscol += (size_t)fonts[f].gly[c].wx;
1.2 kristaps 923: }
924:
925: static void
1.9 kristaps 926: ps_pclose(struct termp *p)
927: {
928:
1.59 schwarze 929: /*
1.9 kristaps 930: * Spit out that we're exiting a word context (this is a
931: * "partial close" because we don't check the last-char buffer
932: * or anything).
933: */
934:
1.50 kristaps 935: if ( ! (PS_INLINE & p->ps->flags))
1.9 kristaps 936: return;
1.59 schwarze 937:
1.37 kristaps 938: if (TERMTYPE_PS != p->type) {
939: ps_printf(p, ") Tj\nET\n");
940: } else
941: ps_printf(p, ") show\n");
942:
1.50 kristaps 943: p->ps->flags &= ~PS_INLINE;
1.9 kristaps 944: }
945:
946: static void
947: ps_fclose(struct termp *p)
948: {
949:
950: /*
951: * Strong closure: if we have a last-char, spit it out after
952: * checking that we're in the right font mode. This will of
953: * course open a new scope, if applicable.
954: *
955: * Following this, close out any scope that's open.
956: */
957:
1.50 kristaps 958: if ('\0' != p->ps->last) {
959: if (p->ps->lastf != TERMFONT_NONE) {
1.9 kristaps 960: ps_pclose(p);
961: ps_setfont(p, TERMFONT_NONE);
962: }
1.50 kristaps 963: ps_pletter(p, p->ps->last);
964: p->ps->last = '\0';
1.9 kristaps 965: }
966:
1.50 kristaps 967: if ( ! (PS_INLINE & p->ps->flags))
1.9 kristaps 968: return;
969:
970: ps_pclose(p);
971: }
972:
973: static void
1.49 kristaps 974: ps_letter(struct termp *p, int arg)
1.8 kristaps 975: {
1.49 kristaps 976: char cc, c;
977:
978: c = arg >= 128 || arg <= 0 ? '?' : arg;
1.9 kristaps 979:
980: /*
981: * State machine dictates whether to buffer the last character
982: * or not. Basically, encoded words are detected by checking if
983: * we're an "8" and switching on the buffer. Then we put "8" in
984: * our buffer, and on the next charater, flush both character
985: * and buffer. Thus, "regular" words are detected by having a
986: * regular character and a regular buffer character.
987: */
988:
1.50 kristaps 989: if ('\0' == p->ps->last) {
1.8 kristaps 990: assert(8 != c);
1.50 kristaps 991: p->ps->last = c;
1.8 kristaps 992: return;
1.50 kristaps 993: } else if (8 == p->ps->last) {
1.8 kristaps 994: assert(8 != c);
1.50 kristaps 995: p->ps->last = '\0';
1.8 kristaps 996: } else if (8 == c) {
1.50 kristaps 997: assert(8 != p->ps->last);
998: if ('_' == p->ps->last) {
999: if (p->ps->lastf != TERMFONT_UNDER) {
1.9 kristaps 1000: ps_pclose(p);
1001: ps_setfont(p, TERMFONT_UNDER);
1002: }
1.50 kristaps 1003: } else if (p->ps->lastf != TERMFONT_BOLD) {
1.9 kristaps 1004: ps_pclose(p);
1005: ps_setfont(p, TERMFONT_BOLD);
1006: }
1.50 kristaps 1007: p->ps->last = c;
1.8 kristaps 1008: return;
1009: } else {
1.50 kristaps 1010: if (p->ps->lastf != TERMFONT_NONE) {
1.9 kristaps 1011: ps_pclose(p);
1012: ps_setfont(p, TERMFONT_NONE);
1013: }
1.50 kristaps 1014: cc = p->ps->last;
1015: p->ps->last = c;
1.8 kristaps 1016: c = cc;
1017: }
1018:
1.9 kristaps 1019: ps_pletter(p, c);
1.8 kristaps 1020: }
1021:
1022: static void
1.2 kristaps 1023: ps_advance(struct termp *p, size_t len)
1024: {
1025:
1.9 kristaps 1026: /*
1027: * Advance some spaces. This can probably be made smarter,
1028: * i.e., to have multiple space-separated words in the same
1029: * scope, but this is easier: just close out the current scope
1030: * and readjust our column settings.
1031: */
1.8 kristaps 1032:
1.9 kristaps 1033: ps_fclose(p);
1.50 kristaps 1034: p->ps->pscol += len;
1.2 kristaps 1035: }
1036:
1037: static void
1038: ps_endline(struct termp *p)
1039: {
1.8 kristaps 1040:
1.9 kristaps 1041: /* Close out any scopes we have open: we're at eoln. */
1042:
1043: ps_fclose(p);
1.2 kristaps 1044:
1.9 kristaps 1045: /*
1046: * If we're in the margin, don't try to recalculate our current
1047: * row. XXX: if the column tries to be fancy with multiple
1.59 schwarze 1048: * lines, we'll do nasty stuff.
1.9 kristaps 1049: */
1.2 kristaps 1050:
1.50 kristaps 1051: if (PS_MARGINS & p->ps->flags)
1.29 kristaps 1052: return;
1053:
1054: /* Left-justify. */
1055:
1.50 kristaps 1056: p->ps->pscol = p->ps->left;
1.29 kristaps 1057:
1058: /* If we haven't printed anything, return. */
1059:
1.50 kristaps 1060: if (PS_NEWPAGE & p->ps->flags)
1.2 kristaps 1061: return;
1062:
1.9 kristaps 1063: /*
1064: * Put us down a line. If we're at the page bottom, spit out a
1065: * showpage and restart our row.
1066: */
1067:
1.59 schwarze 1068: if (p->ps->psrow >= p->ps->lineheight + p->ps->bottom) {
1.50 kristaps 1069: p->ps->psrow -= p->ps->lineheight;
1.2 kristaps 1070: return;
1071: }
1072:
1.37 kristaps 1073: ps_closepage(p);
1.1 kristaps 1074: }
1.9 kristaps 1075:
1076: static void
1077: ps_setfont(struct termp *p, enum termfont f)
1078: {
1079:
1.16 kristaps 1080: assert(f < TERMFONT__MAX);
1.50 kristaps 1081: p->ps->lastf = f;
1.59 schwarze 1082:
1.32 kristaps 1083: /*
1084: * If we're still at the top of the page, let the font-setting
1085: * be delayed until we actually have stuff to print.
1086: */
1087:
1.50 kristaps 1088: if (PS_NEWPAGE & p->ps->flags)
1.32 kristaps 1089: return;
1090:
1.37 kristaps 1091: if (TERMTYPE_PS == p->type)
1.59 schwarze 1092: ps_printf(p, "/%s %zu selectfont\n",
1093: fonts[(int)f].name, p->ps->scale);
1.37 kristaps 1094: else
1.59 schwarze 1095: ps_printf(p, "/F%d %zu Tf\n",
1096: (int)f, p->ps->scale);
1.9 kristaps 1097: }
1098:
1.11 kristaps 1099: static size_t
1.49 kristaps 1100: ps_width(const struct termp *p, int c)
1.11 kristaps 1101: {
1102:
1.14 kristaps 1103: if (c <= 32 || c - 32 >= MAXCHAR)
1.61 schwarze 1104: c = 0;
1105: else
1106: c -= 32;
1.14 kristaps 1107:
1.49 kristaps 1108: return((size_t)fonts[(int)TERMFONT_NONE].gly[c].wx);
1.11 kristaps 1109: }
1.19 kristaps 1110:
1.20 kristaps 1111: static double
1.19 kristaps 1112: ps_hspan(const struct termp *p, const struct roffsu *su)
1113: {
1114: double r;
1.59 schwarze 1115:
1.19 kristaps 1116: /*
1117: * All of these measurements are derived by converting from the
1.21 kristaps 1118: * native measurement to AFM units.
1.19 kristaps 1119: */
1120:
1121: switch (su->unit) {
1.59 schwarze 1122: case SCALE_CM:
1.21 kristaps 1123: r = PNT2AFM(p, su->scale * 28.34);
1.19 kristaps 1124: break;
1.59 schwarze 1125: case SCALE_IN:
1.62 ! schwarze 1126: r = PNT2AFM(p, su->scale * 72.0);
1.19 kristaps 1127: break;
1.59 schwarze 1128: case SCALE_PC:
1.62 ! schwarze 1129: r = PNT2AFM(p, su->scale * 12.0);
1.19 kristaps 1130: break;
1.59 schwarze 1131: case SCALE_PT:
1.62 ! schwarze 1132: r = PNT2AFM(p, su->scale * 100.0);
1.19 kristaps 1133: break;
1.59 schwarze 1134: case SCALE_EM:
1.36 kristaps 1135: r = su->scale *
1.59 schwarze 1136: fonts[(int)TERMFONT_NONE].gly[109 - 32].wx;
1.19 kristaps 1137: break;
1.59 schwarze 1138: case SCALE_MM:
1.21 kristaps 1139: r = PNT2AFM(p, su->scale * 2.834);
1.19 kristaps 1140: break;
1.59 schwarze 1141: case SCALE_EN:
1.36 kristaps 1142: r = su->scale *
1.59 schwarze 1143: fonts[(int)TERMFONT_NONE].gly[110 - 32].wx;
1.19 kristaps 1144: break;
1.59 schwarze 1145: case SCALE_VS:
1.50 kristaps 1146: r = su->scale * p->ps->lineheight;
1.19 kristaps 1147: break;
1148: default:
1149: r = su->scale;
1150: break;
1151: }
1152:
1.20 kristaps 1153: return(r);
1.50 kristaps 1154: }
1155:
1156: static void
1157: ps_growbuf(struct termp *p, size_t sz)
1158: {
1159: if (p->ps->psmargcur + sz <= p->ps->psmargsz)
1160: return;
1161:
1162: if (sz < PS_BUFSLOP)
1163: sz = PS_BUFSLOP;
1164:
1165: p->ps->psmargsz += sz;
1.60 schwarze 1166: p->ps->psmarg = mandoc_realloc(p->ps->psmarg, p->ps->psmargsz);
1.19 kristaps 1167: }
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