Annotation of src/usr.bin/mandoc/term_ps.c, Revision 1.25
1.25 ! schwarze 1: /* $Id: term_ps.c,v 1.24 2014/04/20 16:44:44 schwarze Exp $ */
1.1 schwarze 2: /*
1.17 schwarze 3: * Copyright (c) 2010, 2011 Kristaps Dzonsons <kristaps@bsd.lv>
1.22 schwarze 4: * Copyright (c) 2014 Ingo Schwarze <schwarze@openbsd.org>
1.1 schwarze 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: */
1.11 deraadt 18: #include <sys/types.h>
1.1 schwarze 19:
20: #include <assert.h>
21: #include <stdarg.h>
1.5 schwarze 22: #include <stdint.h>
1.1 schwarze 23: #include <stdio.h>
24: #include <stdlib.h>
25: #include <string.h>
1.4 schwarze 26: #include <time.h>
1.6 schwarze 27: #include <unistd.h>
1.1 schwarze 28:
1.10 schwarze 29: #include "mandoc.h"
1.21 schwarze 30: #include "mandoc_aux.h"
1.1 schwarze 31: #include "out.h"
32: #include "main.h"
33: #include "term.h"
34:
1.17 schwarze 35: /* These work the buffer used by the header and footer. */
36: #define PS_BUFSLOP 128
37:
1.6 schwarze 38: /* Convert PostScript point "x" to an AFM unit. */
1.24 schwarze 39: #define PNT2AFM(p, x) \
1.17 schwarze 40: (size_t)((double)(x) * (1000.0 / (double)(p)->ps->scale))
1.6 schwarze 41:
42: /* Convert an AFM unit "x" to a PostScript points */
1.24 schwarze 43: #define AFM2PNT(p, x) \
1.17 schwarze 44: ((double)(x) / (1000.0 / (double)(p)->ps->scale))
1.6 schwarze 45:
1.4 schwarze 46: struct glyph {
1.7 schwarze 47: unsigned short wx; /* WX in AFM */
1.4 schwarze 48: };
49:
50: struct font {
51: const char *name; /* FontName in AFM */
52: #define MAXCHAR 95 /* total characters we can handle */
53: struct glyph gly[MAXCHAR]; /* glyph metrics */
54: };
1.1 schwarze 55:
1.17 schwarze 56: struct termp_ps {
57: int flags;
58: #define PS_INLINE (1 << 0) /* we're in a word */
59: #define PS_MARGINS (1 << 1) /* we're in the margins */
60: #define PS_NEWPAGE (1 << 2) /* new page, no words yet */
61: size_t pscol; /* visible column (AFM units) */
62: size_t psrow; /* visible row (AFM units) */
63: char *psmarg; /* margin buf */
64: size_t psmargsz; /* margin buf size */
65: size_t psmargcur; /* cur index in margin buf */
66: char last; /* character buffer */
67: enum termfont lastf; /* last set font */
68: size_t scale; /* font scaling factor */
69: size_t pages; /* number of pages shown */
70: size_t lineheight; /* line height (AFM units) */
71: size_t top; /* body top (AFM units) */
72: size_t bottom; /* body bottom (AFM units) */
73: size_t height; /* page height (AFM units */
74: size_t width; /* page width (AFM units) */
1.22 schwarze 75: size_t lastwidth; /* page width before last ll */
1.17 schwarze 76: size_t left; /* body left (AFM units) */
77: size_t header; /* header pos (AFM units) */
78: size_t footer; /* footer pos (AFM units) */
1.24 schwarze 79: size_t pdfbytes; /* current output byte */
1.17 schwarze 80: size_t pdflastpg; /* byte of last page mark */
81: size_t pdfbody; /* start of body object */
82: size_t *pdfobjs; /* table of object offsets */
83: size_t pdfobjsz; /* size of pdfobjs */
84: };
85:
86: static double ps_hspan(const struct termp *,
87: const struct roffsu *);
88: static size_t ps_width(const struct termp *, int);
89: static void ps_advance(struct termp *, size_t);
90: static void ps_begin(struct termp *);
91: static void ps_closepage(struct termp *);
92: static void ps_end(struct termp *);
93: static void ps_endline(struct termp *);
94: static void ps_fclose(struct termp *);
95: static void ps_growbuf(struct termp *, size_t);
96: static void ps_letter(struct termp *, int);
97: static void ps_pclose(struct termp *);
98: static void ps_pletter(struct termp *, int);
99: static void ps_printf(struct termp *, const char *, ...);
100: static void ps_putchar(struct termp *, char);
101: static void ps_setfont(struct termp *, enum termfont);
1.23 schwarze 102: static void ps_setwidth(struct termp *, int, size_t);
1.17 schwarze 103: static struct termp *pspdf_alloc(char *);
104: static void pdf_obj(struct termp *, size_t);
105:
1.4 schwarze 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:
112: static const struct font fonts[TERMFONT__MAX] = {
1.6 schwarze 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},
1.4 schwarze 209: } },
1.6 schwarze 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 },
279: { 556 },
280: { 444 },
281: { 333 },
282: { 500 },
283: { 556 },
284: { 278 },
285: { 333 },
286: { 556 },
287: { 278 },
288: { 833 },
289: { 556 },
290: { 500 },
291: { 556 },
292: { 556 },
293: { 444 },
294: { 389 },
295: { 333 },
296: { 556 },
297: { 500 },
298: { 722 },
299: { 500 },
300: { 500 },
301: { 444 },
302: { 394 },
303: { 220 },
304: { 394 },
305: { 520 },
1.4 schwarze 306: } },
1.6 schwarze 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 },
376: { 500 },
377: { 444 },
378: { 278 },
379: { 500 },
380: { 500 },
381: { 278 },
382: { 278 },
383: { 444 },
384: { 278 },
385: { 722 },
386: { 500 },
387: { 500 },
388: { 500 },
389: { 500 },
390: { 389 },
391: { 389 },
392: { 278 },
393: { 500 },
394: { 444 },
395: { 667 },
396: { 444 },
397: { 444 },
398: { 389 },
399: { 400 },
400: { 275 },
401: { 400 },
402: { 541 },
1.4 schwarze 403: } },
404: };
405:
1.7 schwarze 406: void *
407: pdf_alloc(char *outopts)
408: {
409: struct termp *p;
410:
1.8 schwarze 411: if (NULL != (p = pspdf_alloc(outopts)))
412: p->type = TERMTYPE_PDF;
1.7 schwarze 413:
414: return(p);
415: }
1.1 schwarze 416:
417: void *
1.5 schwarze 418: ps_alloc(char *outopts)
1.1 schwarze 419: {
420: struct termp *p;
1.7 schwarze 421:
1.8 schwarze 422: if (NULL != (p = pspdf_alloc(outopts)))
423: p->type = TERMTYPE_PS;
1.7 schwarze 424:
425: return(p);
426: }
427:
428: static struct termp *
429: pspdf_alloc(char *outopts)
430: {
431: struct termp *p;
1.18 schwarze 432: unsigned int pagex, pagey;
433: size_t marginx, marginy, lineheight;
1.5 schwarze 434: const char *toks[2];
1.6 schwarze 435: const char *pp;
1.5 schwarze 436: char *v;
1.1 schwarze 437:
1.17 schwarze 438: p = mandoc_calloc(1, sizeof(struct termp));
439: p->enc = TERMENC_ASCII;
440: p->ps = mandoc_calloc(1, sizeof(struct termp_ps));
1.1 schwarze 441:
1.6 schwarze 442: p->advance = ps_advance;
1.1 schwarze 443: p->begin = ps_begin;
444: p->end = ps_end;
445: p->endline = ps_endline;
1.6 schwarze 446: p->hspan = ps_hspan;
447: p->letter = ps_letter;
1.22 schwarze 448: p->setwidth = ps_setwidth;
1.3 schwarze 449: p->width = ps_width;
1.24 schwarze 450:
1.5 schwarze 451: toks[0] = "paper";
452: toks[1] = NULL;
453:
1.6 schwarze 454: pp = NULL;
455:
1.5 schwarze 456: while (outopts && *outopts)
457: switch (getsubopt(&outopts, UNCONST(toks), &v)) {
1.24 schwarze 458: case 0:
1.6 schwarze 459: pp = v;
1.5 schwarze 460: break;
461: default:
462: break;
463: }
1.4 schwarze 464:
1.6 schwarze 465: /* Default to US letter (millimetres). */
466:
467: pagex = 216;
468: pagey = 279;
469:
470: /*
471: * The ISO-269 paper sizes can be calculated automatically, but
472: * it would require bringing in -lm for pow() and I'd rather not
473: * do that. So just do it the easy way for now. Since this
474: * only happens once, I'm not terribly concerned.
475: */
476:
477: if (pp && strcasecmp(pp, "letter")) {
478: if (0 == strcasecmp(pp, "a3")) {
479: pagex = 297;
480: pagey = 420;
481: } else if (0 == strcasecmp(pp, "a4")) {
482: pagex = 210;
483: pagey = 297;
484: } else if (0 == strcasecmp(pp, "a5")) {
485: pagex = 148;
486: pagey = 210;
487: } else if (0 == strcasecmp(pp, "legal")) {
488: pagex = 216;
489: pagey = 356;
1.18 schwarze 490: } else if (2 != sscanf(pp, "%ux%u", &pagex, &pagey))
1.6 schwarze 491: fprintf(stderr, "%s: Unknown paper\n", pp);
1.19 schwarze 492: }
1.6 schwarze 493:
1.24 schwarze 494: /*
1.6 schwarze 495: * This MUST be defined before any PNT2AFM or AFM2PNT
496: * calculations occur.
497: */
498:
1.17 schwarze 499: p->ps->scale = 11;
1.6 schwarze 500:
501: /* Remember millimetres -> AFM units. */
502:
503: pagex = PNT2AFM(p, ((double)pagex * 2.834));
504: pagey = PNT2AFM(p, ((double)pagey * 2.834));
505:
506: /* Margins are 1/9 the page x and y. */
507:
1.24 schwarze 508: marginx = (size_t)((double)pagex / 9.0);
509: marginy = (size_t)((double)pagey / 9.0);
1.6 schwarze 510:
511: /* Line-height is 1.4em. */
512:
1.17 schwarze 513: lineheight = PNT2AFM(p, ((double)p->ps->scale * 1.4));
1.4 schwarze 514:
1.22 schwarze 515: p->ps->width = p->ps->lastwidth = (size_t)pagex;
1.18 schwarze 516: p->ps->height = (size_t)pagey;
1.17 schwarze 517: p->ps->header = pagey - (marginy / 2) - (lineheight / 2);
518: p->ps->top = pagey - marginy;
519: p->ps->footer = (marginy / 2) - (lineheight / 2);
520: p->ps->bottom = marginy;
521: p->ps->left = marginx;
522: p->ps->lineheight = lineheight;
1.4 schwarze 523:
1.6 schwarze 524: p->defrmargin = pagex - (marginx * 2);
1.1 schwarze 525: return(p);
1.22 schwarze 526: }
527:
528: static void
1.23 schwarze 529: ps_setwidth(struct termp *p, int iop, size_t width)
1.22 schwarze 530: {
531: size_t lastwidth;
532:
533: lastwidth = p->ps->width;
1.23 schwarze 534: if (0 < iop)
535: p->ps->width += width;
536: else if (0 > iop)
537: p->ps->width -= width;
538: else
539: p->ps->width = width ? width : p->ps->lastwidth;
1.22 schwarze 540: p->ps->lastwidth = lastwidth;
1.1 schwarze 541: }
542:
543: void
1.7 schwarze 544: pspdf_free(void *arg)
1.1 schwarze 545: {
546: struct termp *p;
547:
548: p = (struct termp *)arg;
549:
1.17 schwarze 550: if (p->ps->psmarg)
551: free(p->ps->psmarg);
552: if (p->ps->pdfobjs)
553: free(p->ps->pdfobjs);
1.1 schwarze 554:
1.17 schwarze 555: free(p->ps);
1.1 schwarze 556: term_free(p);
557: }
558:
559: static void
560: ps_printf(struct termp *p, const char *fmt, ...)
561: {
562: va_list ap;
1.7 schwarze 563: int pos, len;
1.1 schwarze 564:
565: va_start(ap, fmt);
566:
567: /*
568: * If we're running in regular mode, then pipe directly into
569: * vprintf(). If we're processing margins, then push the data
570: * into our growable margin buffer.
571: */
572:
1.17 schwarze 573: if ( ! (PS_MARGINS & p->ps->flags)) {
1.7 schwarze 574: len = vprintf(fmt, ap);
1.1 schwarze 575: va_end(ap);
1.24 schwarze 576: p->ps->pdfbytes += len < 0 ? 0 : (size_t)len;
1.1 schwarze 577: return;
578: }
579:
1.24 schwarze 580: /*
1.1 schwarze 581: * XXX: I assume that the in-margin print won't exceed
582: * PS_BUFSLOP (128 bytes), which is reasonable but still an
583: * assumption that will cause pukeage if it's not the case.
584: */
585:
1.9 schwarze 586: ps_growbuf(p, PS_BUFSLOP);
1.1 schwarze 587:
1.17 schwarze 588: pos = (int)p->ps->psmargcur;
1.19 schwarze 589: vsnprintf(&p->ps->psmarg[pos], PS_BUFSLOP, fmt, ap);
1.1 schwarze 590:
591: va_end(ap);
1.7 schwarze 592:
1.17 schwarze 593: p->ps->psmargcur = strlen(p->ps->psmarg);
1.1 schwarze 594: }
595:
596: static void
597: ps_putchar(struct termp *p, char c)
598: {
599: int pos;
600:
601: /* See ps_printf(). */
602:
1.17 schwarze 603: if ( ! (PS_MARGINS & p->ps->flags)) {
1.1 schwarze 604: putchar(c);
1.17 schwarze 605: p->ps->pdfbytes++;
1.1 schwarze 606: return;
607: }
608:
1.9 schwarze 609: ps_growbuf(p, 2);
1.1 schwarze 610:
1.17 schwarze 611: pos = (int)p->ps->psmargcur++;
612: p->ps->psmarg[pos++] = c;
613: p->ps->psmarg[pos] = '\0';
1.1 schwarze 614: }
615:
1.7 schwarze 616: static void
1.8 schwarze 617: pdf_obj(struct termp *p, size_t obj)
618: {
619:
620: assert(obj > 0);
621:
1.17 schwarze 622: if ((obj - 1) >= p->ps->pdfobjsz) {
623: p->ps->pdfobjsz = obj + 128;
1.25 ! schwarze 624: p->ps->pdfobjs = mandoc_reallocarray(p->ps->pdfobjs,
! 625: p->ps->pdfobjsz, sizeof(size_t));
1.8 schwarze 626: }
627:
1.17 schwarze 628: p->ps->pdfobjs[(int)obj - 1] = p->ps->pdfbytes;
1.8 schwarze 629: ps_printf(p, "%zu 0 obj\n", obj);
630: }
631:
632: static void
1.7 schwarze 633: ps_closepage(struct termp *p)
634: {
635: int i;
1.8 schwarze 636: size_t len, base;
637:
638: /*
639: * Close out a page that we've already flushed to output. In
640: * PostScript, we simply note that the page must be showed. In
641: * PDF, we must now create the Length, Resource, and Page node
642: * for the page contents.
643: */
1.7 schwarze 644:
1.17 schwarze 645: assert(p->ps->psmarg && p->ps->psmarg[0]);
646: ps_printf(p, "%s", p->ps->psmarg);
1.7 schwarze 647:
1.8 schwarze 648: if (TERMTYPE_PS != p->type) {
1.7 schwarze 649: ps_printf(p, "ET\n");
1.8 schwarze 650:
1.17 schwarze 651: len = p->ps->pdfbytes - p->ps->pdflastpg;
652: base = p->ps->pages * 4 + p->ps->pdfbody;
1.8 schwarze 653:
654: ps_printf(p, "endstream\nendobj\n");
655:
656: /* Length of content. */
657: pdf_obj(p, base + 1);
658: ps_printf(p, "%zu\nendobj\n", len);
659:
660: /* Resource for content. */
661: pdf_obj(p, base + 2);
662: ps_printf(p, "<<\n/ProcSet [/PDF /Text]\n");
1.7 schwarze 663: ps_printf(p, "/Font <<\n");
1.24 schwarze 664: for (i = 0; i < (int)TERMFONT__MAX; i++)
1.7 schwarze 665: ps_printf(p, "/F%d %d 0 R\n", i, 3 + i);
1.8 schwarze 666: ps_printf(p, ">>\n>>\n");
667:
668: /* Page node. */
669: pdf_obj(p, base + 3);
1.7 schwarze 670: ps_printf(p, "<<\n");
671: ps_printf(p, "/Type /Page\n");
672: ps_printf(p, "/Parent 2 0 R\n");
1.8 schwarze 673: ps_printf(p, "/Resources %zu 0 R\n", base + 2);
674: ps_printf(p, "/Contents %zu 0 R\n", base);
675: ps_printf(p, ">>\nendobj\n");
676: } else
677: ps_printf(p, "showpage\n");
1.7 schwarze 678:
1.17 schwarze 679: p->ps->pages++;
680: p->ps->psrow = p->ps->top;
681: assert( ! (PS_NEWPAGE & p->ps->flags));
682: p->ps->flags |= PS_NEWPAGE;
1.7 schwarze 683: }
684:
1.1 schwarze 685: static void
686: ps_end(struct termp *p)
687: {
1.8 schwarze 688: size_t i, xref, base;
1.1 schwarze 689:
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:
1.17 schwarze 696: if ( ! (PS_NEWPAGE & p->ps->flags)) {
697: assert(0 == p->ps->flags);
698: assert('\0' == p->ps->last);
1.7 schwarze 699: ps_closepage(p);
1.6 schwarze 700: }
1.4 schwarze 701:
1.7 schwarze 702: if (TERMTYPE_PS == p->type) {
703: ps_printf(p, "%%%%Trailer\n");
1.17 schwarze 704: ps_printf(p, "%%%%Pages: %zu\n", p->ps->pages);
1.7 schwarze 705: ps_printf(p, "%%%%EOF\n");
706: return;
1.24 schwarze 707: }
1.7 schwarze 708:
1.8 schwarze 709: pdf_obj(p, 2);
710: ps_printf(p, "<<\n/Type /Pages\n");
1.7 schwarze 711: ps_printf(p, "/MediaBox [0 0 %zu %zu]\n",
1.17 schwarze 712: (size_t)AFM2PNT(p, p->ps->width),
713: (size_t)AFM2PNT(p, p->ps->height));
1.7 schwarze 714:
1.17 schwarze 715: ps_printf(p, "/Count %zu\n", p->ps->pages);
1.7 schwarze 716: ps_printf(p, "/Kids [");
717:
1.17 schwarze 718: for (i = 0; i < p->ps->pages; i++)
1.24 schwarze 719: ps_printf(p, " %zu 0 R", i * 4 + p->ps->pdfbody + 3);
1.8 schwarze 720:
1.24 schwarze 721: base = (p->ps->pages - 1) * 4 + p->ps->pdfbody + 4;
1.8 schwarze 722:
723: ps_printf(p, "]\n>>\nendobj\n");
724: pdf_obj(p, base);
1.7 schwarze 725: ps_printf(p, "<<\n");
726: ps_printf(p, "/Type /Catalog\n");
727: ps_printf(p, "/Pages 2 0 R\n");
728: ps_printf(p, ">>\n");
1.17 schwarze 729: xref = p->ps->pdfbytes;
1.7 schwarze 730: ps_printf(p, "xref\n");
1.8 schwarze 731: ps_printf(p, "0 %zu\n", base + 1);
732: ps_printf(p, "0000000000 65535 f \n");
733:
734: for (i = 0; i < base; i++)
1.24 schwarze 735: ps_printf(p, "%.10zu 00000 n \n",
736: p->ps->pdfobjs[(int)i]);
1.8 schwarze 737:
1.7 schwarze 738: ps_printf(p, "trailer\n");
739: ps_printf(p, "<<\n");
1.8 schwarze 740: ps_printf(p, "/Size %zu\n", base + 1);
741: ps_printf(p, "/Root %zu 0 R\n", base);
1.7 schwarze 742: ps_printf(p, "/Info 1 0 R\n");
743: ps_printf(p, ">>\n");
744: ps_printf(p, "startxref\n");
745: ps_printf(p, "%zu\n", xref);
746: ps_printf(p, "%%%%EOF\n");
1.1 schwarze 747: }
748:
749: static void
750: ps_begin(struct termp *p)
751: {
1.4 schwarze 752: time_t t;
753: int i;
1.1 schwarze 754:
1.24 schwarze 755: /*
1.2 schwarze 756: * Print margins into margin buffer. Nothing gets output to the
757: * screen yet, so we don't need to initialise the primary state.
1.1 schwarze 758: */
759:
1.17 schwarze 760: if (p->ps->psmarg) {
761: assert(p->ps->psmargsz);
762: p->ps->psmarg[0] = '\0';
1.1 schwarze 763: }
764:
1.17 schwarze 765: /*p->ps->pdfbytes = 0;*/
766: p->ps->psmargcur = 0;
767: p->ps->flags = PS_MARGINS;
768: p->ps->pscol = p->ps->left;
769: p->ps->psrow = p->ps->header;
1.1 schwarze 770:
1.2 schwarze 771: ps_setfont(p, TERMFONT_NONE);
1.1 schwarze 772:
773: (*p->headf)(p, p->argf);
774: (*p->endline)(p);
775:
1.17 schwarze 776: p->ps->pscol = p->ps->left;
777: p->ps->psrow = p->ps->footer;
1.1 schwarze 778:
779: (*p->footf)(p, p->argf);
780: (*p->endline)(p);
781:
1.17 schwarze 782: p->ps->flags &= ~PS_MARGINS;
1.2 schwarze 783:
1.17 schwarze 784: assert(0 == p->ps->flags);
785: assert(p->ps->psmarg);
786: assert('\0' != p->ps->psmarg[0]);
1.1 schwarze 787:
1.24 schwarze 788: /*
1.2 schwarze 789: * Print header and initialise page state. Following this,
790: * stuff gets printed to the screen, so make sure we're sane.
791: */
792:
1.4 schwarze 793: t = time(NULL);
794:
1.7 schwarze 795: if (TERMTYPE_PS == p->type) {
796: ps_printf(p, "%%!PS-Adobe-3.0\n");
797: ps_printf(p, "%%%%CreationDate: %s", ctime(&t));
798: ps_printf(p, "%%%%DocumentData: Clean7Bit\n");
799: ps_printf(p, "%%%%Orientation: Portrait\n");
800: ps_printf(p, "%%%%Pages: (atend)\n");
801: ps_printf(p, "%%%%PageOrder: Ascend\n");
802: ps_printf(p, "%%%%DocumentMedia: "
1.24 schwarze 803: "Default %zu %zu 0 () ()\n",
804: (size_t)AFM2PNT(p, p->ps->width),
805: (size_t)AFM2PNT(p, p->ps->height));
1.7 schwarze 806: ps_printf(p, "%%%%DocumentNeededResources: font");
1.4 schwarze 807:
1.7 schwarze 808: for (i = 0; i < (int)TERMFONT__MAX; i++)
809: ps_printf(p, " %s", fonts[i].name);
810:
811: ps_printf(p, "\n%%%%EndComments\n");
812: } else {
813: ps_printf(p, "%%PDF-1.1\n");
1.8 schwarze 814: pdf_obj(p, 1);
1.7 schwarze 815: ps_printf(p, "<<\n");
816: ps_printf(p, ">>\n");
817: ps_printf(p, "endobj\n");
818:
819: for (i = 0; i < (int)TERMFONT__MAX; i++) {
1.8 schwarze 820: pdf_obj(p, (size_t)i + 3);
1.7 schwarze 821: ps_printf(p, "<<\n");
822: ps_printf(p, "/Type /Font\n");
823: ps_printf(p, "/Subtype /Type1\n");
1.20 schwarze 824: ps_printf(p, "/Name /F%d\n", i);
1.7 schwarze 825: ps_printf(p, "/BaseFont /%s\n", fonts[i].name);
826: ps_printf(p, ">>\n");
827: }
828: }
829:
1.17 schwarze 830: p->ps->pdfbody = (size_t)TERMFONT__MAX + 3;
831: p->ps->pscol = p->ps->left;
832: p->ps->psrow = p->ps->top;
833: p->ps->flags |= PS_NEWPAGE;
1.6 schwarze 834: ps_setfont(p, TERMFONT_NONE);
1.1 schwarze 835: }
836:
837: static void
1.4 schwarze 838: ps_pletter(struct termp *p, int c)
1.1 schwarze 839: {
1.4 schwarze 840: int f;
1.6 schwarze 841:
842: /*
843: * If we haven't opened a page context, then output that we're
844: * in a new page and make sure the font is correctly set.
845: */
846:
1.17 schwarze 847: if (PS_NEWPAGE & p->ps->flags) {
1.7 schwarze 848: if (TERMTYPE_PS == p->type) {
1.24 schwarze 849: ps_printf(p, "%%%%Page: %zu %zu\n",
850: p->ps->pages + 1, p->ps->pages + 1);
851: ps_printf(p, "/%s %zu selectfont\n",
852: fonts[(int)p->ps->lastf].name,
853: p->ps->scale);
1.7 schwarze 854: } else {
1.24 schwarze 855: pdf_obj(p, p->ps->pdfbody +
856: p->ps->pages * 4);
1.7 schwarze 857: ps_printf(p, "<<\n");
1.24 schwarze 858: ps_printf(p, "/Length %zu 0 R\n",
859: p->ps->pdfbody + 1 + p->ps->pages * 4);
1.7 schwarze 860: ps_printf(p, ">>\nstream\n");
861: }
1.17 schwarze 862: p->ps->pdflastpg = p->ps->pdfbytes;
863: p->ps->flags &= ~PS_NEWPAGE;
1.6 schwarze 864: }
1.24 schwarze 865:
1.2 schwarze 866: /*
867: * If we're not in a PostScript "word" context, then open one
868: * now at the current cursor.
869: */
870:
1.17 schwarze 871: if ( ! (PS_INLINE & p->ps->flags)) {
1.7 schwarze 872: if (TERMTYPE_PS != p->type) {
1.24 schwarze 873: ps_printf(p, "BT\n/F%d %zu Tf\n",
874: (int)p->ps->lastf, p->ps->scale);
1.7 schwarze 875: ps_printf(p, "%.3f %.3f Td\n(",
1.24 schwarze 876: AFM2PNT(p, p->ps->pscol),
877: AFM2PNT(p, p->ps->psrow));
1.7 schwarze 878: } else
1.24 schwarze 879: ps_printf(p, "%.3f %.3f moveto\n(",
880: AFM2PNT(p, p->ps->pscol),
881: AFM2PNT(p, p->ps->psrow));
1.17 schwarze 882: p->ps->flags |= PS_INLINE;
1.1 schwarze 883: }
884:
1.17 schwarze 885: assert( ! (PS_NEWPAGE & p->ps->flags));
1.6 schwarze 886:
1.1 schwarze 887: /*
888: * We need to escape these characters as per the PostScript
889: * specification. We would also escape non-graphable characters
890: * (like tabs), but none of them would get to this point and
891: * it's superfluous to abort() on them.
892: */
893:
894: switch (c) {
1.24 schwarze 895: case '(':
1.1 schwarze 896: /* FALLTHROUGH */
1.24 schwarze 897: case ')':
1.1 schwarze 898: /* FALLTHROUGH */
1.24 schwarze 899: case '\\':
1.1 schwarze 900: ps_putchar(p, '\\');
901: break;
902: default:
903: break;
904: }
905:
906: /* Write the character and adjust where we are on the page. */
1.2 schwarze 907:
1.17 schwarze 908: f = (int)p->ps->lastf;
1.4 schwarze 909:
1.12 jsg 910: if (c <= 32 || (c - 32 >= MAXCHAR)) {
1.4 schwarze 911: ps_putchar(p, ' ');
1.17 schwarze 912: p->ps->pscol += (size_t)fonts[f].gly[0].wx;
1.4 schwarze 913: return;
1.24 schwarze 914: }
1.4 schwarze 915:
1.6 schwarze 916: ps_putchar(p, (char)c);
1.4 schwarze 917: c -= 32;
1.17 schwarze 918: p->ps->pscol += (size_t)fonts[f].gly[c].wx;
1.1 schwarze 919: }
920:
921: static void
1.2 schwarze 922: ps_pclose(struct termp *p)
923: {
924:
1.24 schwarze 925: /*
1.2 schwarze 926: * Spit out that we're exiting a word context (this is a
927: * "partial close" because we don't check the last-char buffer
928: * or anything).
929: */
930:
1.17 schwarze 931: if ( ! (PS_INLINE & p->ps->flags))
1.2 schwarze 932: return;
1.24 schwarze 933:
1.7 schwarze 934: if (TERMTYPE_PS != p->type) {
935: ps_printf(p, ") Tj\nET\n");
936: } else
937: ps_printf(p, ") show\n");
938:
1.17 schwarze 939: p->ps->flags &= ~PS_INLINE;
1.2 schwarze 940: }
941:
942: static void
943: ps_fclose(struct termp *p)
944: {
945:
946: /*
947: * Strong closure: if we have a last-char, spit it out after
948: * checking that we're in the right font mode. This will of
949: * course open a new scope, if applicable.
950: *
951: * Following this, close out any scope that's open.
952: */
953:
1.17 schwarze 954: if ('\0' != p->ps->last) {
955: if (p->ps->lastf != TERMFONT_NONE) {
1.2 schwarze 956: ps_pclose(p);
957: ps_setfont(p, TERMFONT_NONE);
958: }
1.17 schwarze 959: ps_pletter(p, p->ps->last);
960: p->ps->last = '\0';
1.2 schwarze 961: }
962:
1.17 schwarze 963: if ( ! (PS_INLINE & p->ps->flags))
1.2 schwarze 964: return;
965:
966: ps_pclose(p);
967: }
968:
969: static void
1.17 schwarze 970: ps_letter(struct termp *p, int arg)
1.2 schwarze 971: {
1.17 schwarze 972: char cc, c;
973:
974: c = arg >= 128 || arg <= 0 ? '?' : arg;
1.2 schwarze 975:
976: /*
977: * State machine dictates whether to buffer the last character
978: * or not. Basically, encoded words are detected by checking if
979: * we're an "8" and switching on the buffer. Then we put "8" in
980: * our buffer, and on the next charater, flush both character
981: * and buffer. Thus, "regular" words are detected by having a
982: * regular character and a regular buffer character.
983: */
984:
1.17 schwarze 985: if ('\0' == p->ps->last) {
1.2 schwarze 986: assert(8 != c);
1.17 schwarze 987: p->ps->last = c;
1.2 schwarze 988: return;
1.17 schwarze 989: } else if (8 == p->ps->last) {
1.2 schwarze 990: assert(8 != c);
1.17 schwarze 991: p->ps->last = '\0';
1.2 schwarze 992: } else if (8 == c) {
1.17 schwarze 993: assert(8 != p->ps->last);
994: if ('_' == p->ps->last) {
995: if (p->ps->lastf != TERMFONT_UNDER) {
1.2 schwarze 996: ps_pclose(p);
997: ps_setfont(p, TERMFONT_UNDER);
998: }
1.17 schwarze 999: } else if (p->ps->lastf != TERMFONT_BOLD) {
1.2 schwarze 1000: ps_pclose(p);
1001: ps_setfont(p, TERMFONT_BOLD);
1002: }
1.17 schwarze 1003: p->ps->last = c;
1.2 schwarze 1004: return;
1005: } else {
1.17 schwarze 1006: if (p->ps->lastf != TERMFONT_NONE) {
1.2 schwarze 1007: ps_pclose(p);
1008: ps_setfont(p, TERMFONT_NONE);
1009: }
1.17 schwarze 1010: cc = p->ps->last;
1011: p->ps->last = c;
1.2 schwarze 1012: c = cc;
1013: }
1014:
1015: ps_pletter(p, c);
1016: }
1017:
1018: static void
1.1 schwarze 1019: ps_advance(struct termp *p, size_t len)
1020: {
1021:
1.2 schwarze 1022: /*
1023: * Advance some spaces. This can probably be made smarter,
1024: * i.e., to have multiple space-separated words in the same
1025: * scope, but this is easier: just close out the current scope
1026: * and readjust our column settings.
1027: */
1.1 schwarze 1028:
1.2 schwarze 1029: ps_fclose(p);
1.17 schwarze 1030: p->ps->pscol += len;
1.1 schwarze 1031: }
1032:
1033: static void
1034: ps_endline(struct termp *p)
1035: {
1036:
1.2 schwarze 1037: /* Close out any scopes we have open: we're at eoln. */
1038:
1039: ps_fclose(p);
1040:
1041: /*
1042: * If we're in the margin, don't try to recalculate our current
1043: * row. XXX: if the column tries to be fancy with multiple
1.24 schwarze 1044: * lines, we'll do nasty stuff.
1.2 schwarze 1045: */
1.1 schwarze 1046:
1.17 schwarze 1047: if (PS_MARGINS & p->ps->flags)
1.6 schwarze 1048: return;
1049:
1050: /* Left-justify. */
1051:
1.17 schwarze 1052: p->ps->pscol = p->ps->left;
1.6 schwarze 1053:
1054: /* If we haven't printed anything, return. */
1055:
1.17 schwarze 1056: if (PS_NEWPAGE & p->ps->flags)
1.1 schwarze 1057: return;
1058:
1.2 schwarze 1059: /*
1060: * Put us down a line. If we're at the page bottom, spit out a
1061: * showpage and restart our row.
1062: */
1063:
1.24 schwarze 1064: if (p->ps->psrow >= p->ps->lineheight + p->ps->bottom) {
1.17 schwarze 1065: p->ps->psrow -= p->ps->lineheight;
1.1 schwarze 1066: return;
1067: }
1068:
1.7 schwarze 1069: ps_closepage(p);
1.1 schwarze 1070: }
1.2 schwarze 1071:
1072: static void
1073: ps_setfont(struct termp *p, enum termfont f)
1074: {
1075:
1.4 schwarze 1076: assert(f < TERMFONT__MAX);
1.17 schwarze 1077: p->ps->lastf = f;
1.24 schwarze 1078:
1.6 schwarze 1079: /*
1080: * If we're still at the top of the page, let the font-setting
1081: * be delayed until we actually have stuff to print.
1082: */
1083:
1.17 schwarze 1084: if (PS_NEWPAGE & p->ps->flags)
1.6 schwarze 1085: return;
1086:
1.7 schwarze 1087: if (TERMTYPE_PS == p->type)
1.24 schwarze 1088: ps_printf(p, "/%s %zu selectfont\n",
1089: fonts[(int)f].name, p->ps->scale);
1.7 schwarze 1090: else
1.24 schwarze 1091: ps_printf(p, "/F%d %zu Tf\n",
1092: (int)f, p->ps->scale);
1.2 schwarze 1093: }
1094:
1.3 schwarze 1095: static size_t
1.17 schwarze 1096: ps_width(const struct termp *p, int c)
1.3 schwarze 1097: {
1098:
1.4 schwarze 1099: if (c <= 32 || c - 32 >= MAXCHAR)
1.7 schwarze 1100: return((size_t)fonts[(int)TERMFONT_NONE].gly[0].wx);
1.4 schwarze 1101:
1102: c -= 32;
1.17 schwarze 1103: return((size_t)fonts[(int)TERMFONT_NONE].gly[c].wx);
1.6 schwarze 1104: }
1105:
1106: static double
1107: ps_hspan(const struct termp *p, const struct roffsu *su)
1108: {
1109: double r;
1.24 schwarze 1110:
1.6 schwarze 1111: /*
1112: * All of these measurements are derived by converting from the
1113: * native measurement to AFM units.
1114: */
1115:
1116: switch (su->unit) {
1.24 schwarze 1117: case SCALE_CM:
1.6 schwarze 1118: r = PNT2AFM(p, su->scale * 28.34);
1119: break;
1.24 schwarze 1120: case SCALE_IN:
1.6 schwarze 1121: r = PNT2AFM(p, su->scale * 72);
1122: break;
1.24 schwarze 1123: case SCALE_PC:
1.6 schwarze 1124: r = PNT2AFM(p, su->scale * 12);
1125: break;
1.24 schwarze 1126: case SCALE_PT:
1.6 schwarze 1127: r = PNT2AFM(p, su->scale * 100);
1128: break;
1.24 schwarze 1129: case SCALE_EM:
1.7 schwarze 1130: r = su->scale *
1.24 schwarze 1131: fonts[(int)TERMFONT_NONE].gly[109 - 32].wx;
1.6 schwarze 1132: break;
1.24 schwarze 1133: case SCALE_MM:
1.6 schwarze 1134: r = PNT2AFM(p, su->scale * 2.834);
1135: break;
1.24 schwarze 1136: case SCALE_EN:
1.7 schwarze 1137: r = su->scale *
1.24 schwarze 1138: fonts[(int)TERMFONT_NONE].gly[110 - 32].wx;
1.6 schwarze 1139: break;
1.24 schwarze 1140: case SCALE_VS:
1.17 schwarze 1141: r = su->scale * p->ps->lineheight;
1.6 schwarze 1142: break;
1143: default:
1144: r = su->scale;
1145: break;
1146: }
1147:
1148: return(r);
1.17 schwarze 1149: }
1150:
1151: static void
1152: ps_growbuf(struct termp *p, size_t sz)
1153: {
1154: if (p->ps->psmargcur + sz <= p->ps->psmargsz)
1155: return;
1156:
1157: if (sz < PS_BUFSLOP)
1158: sz = PS_BUFSLOP;
1159:
1160: p->ps->psmargsz += sz;
1.25 ! schwarze 1161: p->ps->psmarg = mandoc_realloc(p->ps->psmarg, p->ps->psmargsz);
1.3 schwarze 1162: }
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