Annotation of src/usr.bin/mandoc/term_ps.c, Revision 1.24
1.24 ! schwarze 1: /* $Id: term_ps.c,v 1.23 2014/03/30 21:27:59 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;
1.24 ! schwarze 624: p->ps->pdfobjs = realloc(p->ps->pdfobjs,
! 625: p->ps->pdfobjsz * sizeof(size_t));
1.17 schwarze 626: if (NULL == p->ps->pdfobjs) {
1.8 schwarze 627: perror(NULL);
1.13 schwarze 628: exit((int)MANDOCLEVEL_SYSERR);
1.8 schwarze 629: }
630: }
631:
1.17 schwarze 632: p->ps->pdfobjs[(int)obj - 1] = p->ps->pdfbytes;
1.8 schwarze 633: ps_printf(p, "%zu 0 obj\n", obj);
634: }
635:
636: static void
1.7 schwarze 637: ps_closepage(struct termp *p)
638: {
639: int i;
1.8 schwarze 640: size_t len, base;
641:
642: /*
643: * Close out a page that we've already flushed to output. In
644: * PostScript, we simply note that the page must be showed. In
645: * PDF, we must now create the Length, Resource, and Page node
646: * for the page contents.
647: */
1.7 schwarze 648:
1.17 schwarze 649: assert(p->ps->psmarg && p->ps->psmarg[0]);
650: ps_printf(p, "%s", p->ps->psmarg);
1.7 schwarze 651:
1.8 schwarze 652: if (TERMTYPE_PS != p->type) {
1.7 schwarze 653: ps_printf(p, "ET\n");
1.8 schwarze 654:
1.17 schwarze 655: len = p->ps->pdfbytes - p->ps->pdflastpg;
656: base = p->ps->pages * 4 + p->ps->pdfbody;
1.8 schwarze 657:
658: ps_printf(p, "endstream\nendobj\n");
659:
660: /* Length of content. */
661: pdf_obj(p, base + 1);
662: ps_printf(p, "%zu\nendobj\n", len);
663:
664: /* Resource for content. */
665: pdf_obj(p, base + 2);
666: ps_printf(p, "<<\n/ProcSet [/PDF /Text]\n");
1.7 schwarze 667: ps_printf(p, "/Font <<\n");
1.24 ! schwarze 668: for (i = 0; i < (int)TERMFONT__MAX; i++)
1.7 schwarze 669: ps_printf(p, "/F%d %d 0 R\n", i, 3 + i);
1.8 schwarze 670: ps_printf(p, ">>\n>>\n");
671:
672: /* Page node. */
673: pdf_obj(p, base + 3);
1.7 schwarze 674: ps_printf(p, "<<\n");
675: ps_printf(p, "/Type /Page\n");
676: ps_printf(p, "/Parent 2 0 R\n");
1.8 schwarze 677: ps_printf(p, "/Resources %zu 0 R\n", base + 2);
678: ps_printf(p, "/Contents %zu 0 R\n", base);
679: ps_printf(p, ">>\nendobj\n");
680: } else
681: ps_printf(p, "showpage\n");
1.7 schwarze 682:
1.17 schwarze 683: p->ps->pages++;
684: p->ps->psrow = p->ps->top;
685: assert( ! (PS_NEWPAGE & p->ps->flags));
686: p->ps->flags |= PS_NEWPAGE;
1.7 schwarze 687: }
688:
1.1 schwarze 689: static void
690: ps_end(struct termp *p)
691: {
1.8 schwarze 692: size_t i, xref, base;
1.1 schwarze 693:
694: /*
695: * At the end of the file, do one last showpage. This is the
696: * same behaviour as groff(1) and works for multiple pages as
697: * well as just one.
698: */
699:
1.17 schwarze 700: if ( ! (PS_NEWPAGE & p->ps->flags)) {
701: assert(0 == p->ps->flags);
702: assert('\0' == p->ps->last);
1.7 schwarze 703: ps_closepage(p);
1.6 schwarze 704: }
1.4 schwarze 705:
1.7 schwarze 706: if (TERMTYPE_PS == p->type) {
707: ps_printf(p, "%%%%Trailer\n");
1.17 schwarze 708: ps_printf(p, "%%%%Pages: %zu\n", p->ps->pages);
1.7 schwarze 709: ps_printf(p, "%%%%EOF\n");
710: return;
1.24 ! schwarze 711: }
1.7 schwarze 712:
1.8 schwarze 713: pdf_obj(p, 2);
714: ps_printf(p, "<<\n/Type /Pages\n");
1.7 schwarze 715: ps_printf(p, "/MediaBox [0 0 %zu %zu]\n",
1.17 schwarze 716: (size_t)AFM2PNT(p, p->ps->width),
717: (size_t)AFM2PNT(p, p->ps->height));
1.7 schwarze 718:
1.17 schwarze 719: ps_printf(p, "/Count %zu\n", p->ps->pages);
1.7 schwarze 720: ps_printf(p, "/Kids [");
721:
1.17 schwarze 722: for (i = 0; i < p->ps->pages; i++)
1.24 ! schwarze 723: ps_printf(p, " %zu 0 R", i * 4 + p->ps->pdfbody + 3);
1.8 schwarze 724:
1.24 ! schwarze 725: base = (p->ps->pages - 1) * 4 + p->ps->pdfbody + 4;
1.8 schwarze 726:
727: ps_printf(p, "]\n>>\nendobj\n");
728: pdf_obj(p, base);
1.7 schwarze 729: ps_printf(p, "<<\n");
730: ps_printf(p, "/Type /Catalog\n");
731: ps_printf(p, "/Pages 2 0 R\n");
732: ps_printf(p, ">>\n");
1.17 schwarze 733: xref = p->ps->pdfbytes;
1.7 schwarze 734: ps_printf(p, "xref\n");
1.8 schwarze 735: ps_printf(p, "0 %zu\n", base + 1);
736: ps_printf(p, "0000000000 65535 f \n");
737:
738: for (i = 0; i < base; i++)
1.24 ! schwarze 739: ps_printf(p, "%.10zu 00000 n \n",
! 740: p->ps->pdfobjs[(int)i]);
1.8 schwarze 741:
1.7 schwarze 742: ps_printf(p, "trailer\n");
743: ps_printf(p, "<<\n");
1.8 schwarze 744: ps_printf(p, "/Size %zu\n", base + 1);
745: ps_printf(p, "/Root %zu 0 R\n", base);
1.7 schwarze 746: ps_printf(p, "/Info 1 0 R\n");
747: ps_printf(p, ">>\n");
748: ps_printf(p, "startxref\n");
749: ps_printf(p, "%zu\n", xref);
750: ps_printf(p, "%%%%EOF\n");
1.1 schwarze 751: }
752:
753: static void
754: ps_begin(struct termp *p)
755: {
1.4 schwarze 756: time_t t;
757: int i;
1.1 schwarze 758:
1.24 ! schwarze 759: /*
1.2 schwarze 760: * Print margins into margin buffer. Nothing gets output to the
761: * screen yet, so we don't need to initialise the primary state.
1.1 schwarze 762: */
763:
1.17 schwarze 764: if (p->ps->psmarg) {
765: assert(p->ps->psmargsz);
766: p->ps->psmarg[0] = '\0';
1.1 schwarze 767: }
768:
1.17 schwarze 769: /*p->ps->pdfbytes = 0;*/
770: p->ps->psmargcur = 0;
771: p->ps->flags = PS_MARGINS;
772: p->ps->pscol = p->ps->left;
773: p->ps->psrow = p->ps->header;
1.1 schwarze 774:
1.2 schwarze 775: ps_setfont(p, TERMFONT_NONE);
1.1 schwarze 776:
777: (*p->headf)(p, p->argf);
778: (*p->endline)(p);
779:
1.17 schwarze 780: p->ps->pscol = p->ps->left;
781: p->ps->psrow = p->ps->footer;
1.1 schwarze 782:
783: (*p->footf)(p, p->argf);
784: (*p->endline)(p);
785:
1.17 schwarze 786: p->ps->flags &= ~PS_MARGINS;
1.2 schwarze 787:
1.17 schwarze 788: assert(0 == p->ps->flags);
789: assert(p->ps->psmarg);
790: assert('\0' != p->ps->psmarg[0]);
1.1 schwarze 791:
1.24 ! schwarze 792: /*
1.2 schwarze 793: * Print header and initialise page state. Following this,
794: * stuff gets printed to the screen, so make sure we're sane.
795: */
796:
1.4 schwarze 797: t = time(NULL);
798:
1.7 schwarze 799: if (TERMTYPE_PS == p->type) {
800: ps_printf(p, "%%!PS-Adobe-3.0\n");
801: ps_printf(p, "%%%%CreationDate: %s", ctime(&t));
802: ps_printf(p, "%%%%DocumentData: Clean7Bit\n");
803: ps_printf(p, "%%%%Orientation: Portrait\n");
804: ps_printf(p, "%%%%Pages: (atend)\n");
805: ps_printf(p, "%%%%PageOrder: Ascend\n");
806: ps_printf(p, "%%%%DocumentMedia: "
1.24 ! schwarze 807: "Default %zu %zu 0 () ()\n",
! 808: (size_t)AFM2PNT(p, p->ps->width),
! 809: (size_t)AFM2PNT(p, p->ps->height));
1.7 schwarze 810: ps_printf(p, "%%%%DocumentNeededResources: font");
1.4 schwarze 811:
1.7 schwarze 812: for (i = 0; i < (int)TERMFONT__MAX; i++)
813: ps_printf(p, " %s", fonts[i].name);
814:
815: ps_printf(p, "\n%%%%EndComments\n");
816: } else {
817: ps_printf(p, "%%PDF-1.1\n");
1.8 schwarze 818: pdf_obj(p, 1);
1.7 schwarze 819: ps_printf(p, "<<\n");
820: ps_printf(p, ">>\n");
821: ps_printf(p, "endobj\n");
822:
823: for (i = 0; i < (int)TERMFONT__MAX; i++) {
1.8 schwarze 824: pdf_obj(p, (size_t)i + 3);
1.7 schwarze 825: ps_printf(p, "<<\n");
826: ps_printf(p, "/Type /Font\n");
827: ps_printf(p, "/Subtype /Type1\n");
1.20 schwarze 828: ps_printf(p, "/Name /F%d\n", i);
1.7 schwarze 829: ps_printf(p, "/BaseFont /%s\n", fonts[i].name);
830: ps_printf(p, ">>\n");
831: }
832: }
833:
1.17 schwarze 834: p->ps->pdfbody = (size_t)TERMFONT__MAX + 3;
835: p->ps->pscol = p->ps->left;
836: p->ps->psrow = p->ps->top;
837: p->ps->flags |= PS_NEWPAGE;
1.6 schwarze 838: ps_setfont(p, TERMFONT_NONE);
1.1 schwarze 839: }
840:
841: static void
1.4 schwarze 842: ps_pletter(struct termp *p, int c)
1.1 schwarze 843: {
1.4 schwarze 844: int f;
1.6 schwarze 845:
846: /*
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.
849: */
850:
1.17 schwarze 851: if (PS_NEWPAGE & p->ps->flags) {
1.7 schwarze 852: if (TERMTYPE_PS == p->type) {
1.24 ! schwarze 853: ps_printf(p, "%%%%Page: %zu %zu\n",
! 854: p->ps->pages + 1, p->ps->pages + 1);
! 855: ps_printf(p, "/%s %zu selectfont\n",
! 856: fonts[(int)p->ps->lastf].name,
! 857: p->ps->scale);
1.7 schwarze 858: } else {
1.24 ! schwarze 859: pdf_obj(p, p->ps->pdfbody +
! 860: p->ps->pages * 4);
1.7 schwarze 861: ps_printf(p, "<<\n");
1.24 ! schwarze 862: ps_printf(p, "/Length %zu 0 R\n",
! 863: p->ps->pdfbody + 1 + p->ps->pages * 4);
1.7 schwarze 864: ps_printf(p, ">>\nstream\n");
865: }
1.17 schwarze 866: p->ps->pdflastpg = p->ps->pdfbytes;
867: p->ps->flags &= ~PS_NEWPAGE;
1.6 schwarze 868: }
1.24 ! schwarze 869:
1.2 schwarze 870: /*
871: * If we're not in a PostScript "word" context, then open one
872: * now at the current cursor.
873: */
874:
1.17 schwarze 875: if ( ! (PS_INLINE & p->ps->flags)) {
1.7 schwarze 876: if (TERMTYPE_PS != p->type) {
1.24 ! schwarze 877: ps_printf(p, "BT\n/F%d %zu Tf\n",
! 878: (int)p->ps->lastf, p->ps->scale);
1.7 schwarze 879: ps_printf(p, "%.3f %.3f Td\n(",
1.24 ! schwarze 880: AFM2PNT(p, p->ps->pscol),
! 881: AFM2PNT(p, p->ps->psrow));
1.7 schwarze 882: } else
1.24 ! schwarze 883: ps_printf(p, "%.3f %.3f moveto\n(",
! 884: AFM2PNT(p, p->ps->pscol),
! 885: AFM2PNT(p, p->ps->psrow));
1.17 schwarze 886: p->ps->flags |= PS_INLINE;
1.1 schwarze 887: }
888:
1.17 schwarze 889: assert( ! (PS_NEWPAGE & p->ps->flags));
1.6 schwarze 890:
1.1 schwarze 891: /*
892: * We need to escape these characters as per the PostScript
893: * specification. We would also escape non-graphable characters
894: * (like tabs), but none of them would get to this point and
895: * it's superfluous to abort() on them.
896: */
897:
898: switch (c) {
1.24 ! schwarze 899: case '(':
1.1 schwarze 900: /* FALLTHROUGH */
1.24 ! schwarze 901: case ')':
1.1 schwarze 902: /* FALLTHROUGH */
1.24 ! schwarze 903: case '\\':
1.1 schwarze 904: ps_putchar(p, '\\');
905: break;
906: default:
907: break;
908: }
909:
910: /* Write the character and adjust where we are on the page. */
1.2 schwarze 911:
1.17 schwarze 912: f = (int)p->ps->lastf;
1.4 schwarze 913:
1.12 jsg 914: if (c <= 32 || (c - 32 >= MAXCHAR)) {
1.4 schwarze 915: ps_putchar(p, ' ');
1.17 schwarze 916: p->ps->pscol += (size_t)fonts[f].gly[0].wx;
1.4 schwarze 917: return;
1.24 ! schwarze 918: }
1.4 schwarze 919:
1.6 schwarze 920: ps_putchar(p, (char)c);
1.4 schwarze 921: c -= 32;
1.17 schwarze 922: p->ps->pscol += (size_t)fonts[f].gly[c].wx;
1.1 schwarze 923: }
924:
925: static void
1.2 schwarze 926: ps_pclose(struct termp *p)
927: {
928:
1.24 ! schwarze 929: /*
1.2 schwarze 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:
1.17 schwarze 935: if ( ! (PS_INLINE & p->ps->flags))
1.2 schwarze 936: return;
1.24 ! schwarze 937:
1.7 schwarze 938: if (TERMTYPE_PS != p->type) {
939: ps_printf(p, ") Tj\nET\n");
940: } else
941: ps_printf(p, ") show\n");
942:
1.17 schwarze 943: p->ps->flags &= ~PS_INLINE;
1.2 schwarze 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:
1.17 schwarze 958: if ('\0' != p->ps->last) {
959: if (p->ps->lastf != TERMFONT_NONE) {
1.2 schwarze 960: ps_pclose(p);
961: ps_setfont(p, TERMFONT_NONE);
962: }
1.17 schwarze 963: ps_pletter(p, p->ps->last);
964: p->ps->last = '\0';
1.2 schwarze 965: }
966:
1.17 schwarze 967: if ( ! (PS_INLINE & p->ps->flags))
1.2 schwarze 968: return;
969:
970: ps_pclose(p);
971: }
972:
973: static void
1.17 schwarze 974: ps_letter(struct termp *p, int arg)
1.2 schwarze 975: {
1.17 schwarze 976: char cc, c;
977:
978: c = arg >= 128 || arg <= 0 ? '?' : arg;
1.2 schwarze 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:
1.17 schwarze 989: if ('\0' == p->ps->last) {
1.2 schwarze 990: assert(8 != c);
1.17 schwarze 991: p->ps->last = c;
1.2 schwarze 992: return;
1.17 schwarze 993: } else if (8 == p->ps->last) {
1.2 schwarze 994: assert(8 != c);
1.17 schwarze 995: p->ps->last = '\0';
1.2 schwarze 996: } else if (8 == c) {
1.17 schwarze 997: assert(8 != p->ps->last);
998: if ('_' == p->ps->last) {
999: if (p->ps->lastf != TERMFONT_UNDER) {
1.2 schwarze 1000: ps_pclose(p);
1001: ps_setfont(p, TERMFONT_UNDER);
1002: }
1.17 schwarze 1003: } else if (p->ps->lastf != TERMFONT_BOLD) {
1.2 schwarze 1004: ps_pclose(p);
1005: ps_setfont(p, TERMFONT_BOLD);
1006: }
1.17 schwarze 1007: p->ps->last = c;
1.2 schwarze 1008: return;
1009: } else {
1.17 schwarze 1010: if (p->ps->lastf != TERMFONT_NONE) {
1.2 schwarze 1011: ps_pclose(p);
1012: ps_setfont(p, TERMFONT_NONE);
1013: }
1.17 schwarze 1014: cc = p->ps->last;
1015: p->ps->last = c;
1.2 schwarze 1016: c = cc;
1017: }
1018:
1019: ps_pletter(p, c);
1020: }
1021:
1022: static void
1.1 schwarze 1023: ps_advance(struct termp *p, size_t len)
1024: {
1025:
1.2 schwarze 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: */
1.1 schwarze 1032:
1.2 schwarze 1033: ps_fclose(p);
1.17 schwarze 1034: p->ps->pscol += len;
1.1 schwarze 1035: }
1036:
1037: static void
1038: ps_endline(struct termp *p)
1039: {
1040:
1.2 schwarze 1041: /* Close out any scopes we have open: we're at eoln. */
1042:
1043: ps_fclose(p);
1044:
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
1.24 ! schwarze 1048: * lines, we'll do nasty stuff.
1.2 schwarze 1049: */
1.1 schwarze 1050:
1.17 schwarze 1051: if (PS_MARGINS & p->ps->flags)
1.6 schwarze 1052: return;
1053:
1054: /* Left-justify. */
1055:
1.17 schwarze 1056: p->ps->pscol = p->ps->left;
1.6 schwarze 1057:
1058: /* If we haven't printed anything, return. */
1059:
1.17 schwarze 1060: if (PS_NEWPAGE & p->ps->flags)
1.1 schwarze 1061: return;
1062:
1.2 schwarze 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:
1.24 ! schwarze 1068: if (p->ps->psrow >= p->ps->lineheight + p->ps->bottom) {
1.17 schwarze 1069: p->ps->psrow -= p->ps->lineheight;
1.1 schwarze 1070: return;
1071: }
1072:
1.7 schwarze 1073: ps_closepage(p);
1.1 schwarze 1074: }
1.2 schwarze 1075:
1076: static void
1077: ps_setfont(struct termp *p, enum termfont f)
1078: {
1079:
1.4 schwarze 1080: assert(f < TERMFONT__MAX);
1.17 schwarze 1081: p->ps->lastf = f;
1.24 ! schwarze 1082:
1.6 schwarze 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:
1.17 schwarze 1088: if (PS_NEWPAGE & p->ps->flags)
1.6 schwarze 1089: return;
1090:
1.7 schwarze 1091: if (TERMTYPE_PS == p->type)
1.24 ! schwarze 1092: ps_printf(p, "/%s %zu selectfont\n",
! 1093: fonts[(int)f].name, p->ps->scale);
1.7 schwarze 1094: else
1.24 ! schwarze 1095: ps_printf(p, "/F%d %zu Tf\n",
! 1096: (int)f, p->ps->scale);
1.2 schwarze 1097: }
1098:
1.3 schwarze 1099: static size_t
1.17 schwarze 1100: ps_width(const struct termp *p, int c)
1.3 schwarze 1101: {
1102:
1.4 schwarze 1103: if (c <= 32 || c - 32 >= MAXCHAR)
1.7 schwarze 1104: return((size_t)fonts[(int)TERMFONT_NONE].gly[0].wx);
1.4 schwarze 1105:
1106: c -= 32;
1.17 schwarze 1107: return((size_t)fonts[(int)TERMFONT_NONE].gly[c].wx);
1.6 schwarze 1108: }
1109:
1110: static double
1111: ps_hspan(const struct termp *p, const struct roffsu *su)
1112: {
1113: double r;
1.24 ! schwarze 1114:
1.6 schwarze 1115: /*
1116: * All of these measurements are derived by converting from the
1117: * native measurement to AFM units.
1118: */
1119:
1120: switch (su->unit) {
1.24 ! schwarze 1121: case SCALE_CM:
1.6 schwarze 1122: r = PNT2AFM(p, su->scale * 28.34);
1123: break;
1.24 ! schwarze 1124: case SCALE_IN:
1.6 schwarze 1125: r = PNT2AFM(p, su->scale * 72);
1126: break;
1.24 ! schwarze 1127: case SCALE_PC:
1.6 schwarze 1128: r = PNT2AFM(p, su->scale * 12);
1129: break;
1.24 ! schwarze 1130: case SCALE_PT:
1.6 schwarze 1131: r = PNT2AFM(p, su->scale * 100);
1132: break;
1.24 ! schwarze 1133: case SCALE_EM:
1.7 schwarze 1134: r = su->scale *
1.24 ! schwarze 1135: fonts[(int)TERMFONT_NONE].gly[109 - 32].wx;
1.6 schwarze 1136: break;
1.24 ! schwarze 1137: case SCALE_MM:
1.6 schwarze 1138: r = PNT2AFM(p, su->scale * 2.834);
1139: break;
1.24 ! schwarze 1140: case SCALE_EN:
1.7 schwarze 1141: r = su->scale *
1.24 ! schwarze 1142: fonts[(int)TERMFONT_NONE].gly[110 - 32].wx;
1.6 schwarze 1143: break;
1.24 ! schwarze 1144: case SCALE_VS:
1.17 schwarze 1145: r = su->scale * p->ps->lineheight;
1.6 schwarze 1146: break;
1147: default:
1148: r = su->scale;
1149: break;
1150: }
1151:
1152: return(r);
1.17 schwarze 1153: }
1154:
1155: static void
1156: ps_growbuf(struct termp *p, size_t sz)
1157: {
1158: if (p->ps->psmargcur + sz <= p->ps->psmargsz)
1159: return;
1160:
1161: if (sz < PS_BUFSLOP)
1162: sz = PS_BUFSLOP;
1163:
1164: p->ps->psmargsz += sz;
1165:
1166: p->ps->psmarg = mandoc_realloc
1167: (p->ps->psmarg, p->ps->psmargsz);
1.3 schwarze 1168: }
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