Annotation of mandoc/term_ps.c, Revision 1.55
1.55 ! joerg 1: /* $Id: term_ps.c,v 1.54 2011/10/16 12:20:34 schwarze Exp $ */
1.1 kristaps 2: /*
1.53 schwarze 3: * Copyright (c) 2010, 2011 Kristaps Dzonsons <kristaps@bsd.lv>
1.1 kristaps 4: *
5: * Permission to use, copy, modify, and distribute this software for any
6: * purpose with or without fee is hereby granted, provided that the above
7: * copyright notice and this permission notice appear in all copies.
8: *
9: * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
10: * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
11: * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
12: * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
13: * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
14: * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
15: * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
16: */
17: #ifdef HAVE_CONFIG_H
18: #include "config.h"
19: #endif
20:
1.43 kristaps 21: #include <sys/types.h>
1.4 kristaps 22:
1.2 kristaps 23: #include <assert.h>
1.4 kristaps 24: #include <stdarg.h>
1.17 kristaps 25: #include <stdint.h>
1.2 kristaps 26: #include <stdio.h>
1.1 kristaps 27: #include <stdlib.h>
1.4 kristaps 28: #include <string.h>
1.13 kristaps 29: #include <time.h>
1.26 kristaps 30: #include <unistd.h>
1.1 kristaps 31:
1.42 schwarze 32: #include "mandoc.h"
1.1 kristaps 33: #include "out.h"
34: #include "main.h"
35: #include "term.h"
36:
1.50 kristaps 37: /* These work the buffer used by the header and footer. */
38: #define PS_BUFSLOP 128
39:
1.21 kristaps 40: /* Convert PostScript point "x" to an AFM unit. */
1.25 kristaps 41: #define PNT2AFM(p, x) /* LINTED */ \
1.50 kristaps 42: (size_t)((double)(x) * (1000.0 / (double)(p)->ps->scale))
1.21 kristaps 43:
44: /* Convert an AFM unit "x" to a PostScript points */
1.25 kristaps 45: #define AFM2PNT(p, x) /* LINTED */ \
1.50 kristaps 46: ((double)(x) / (1000.0 / (double)(p)->ps->scale))
1.21 kristaps 47:
1.13 kristaps 48: struct glyph {
1.36 kristaps 49: unsigned short wx; /* WX in AFM */
1.13 kristaps 50: };
51:
52: struct font {
53: const char *name; /* FontName in AFM */
1.15 kristaps 54: #define MAXCHAR 95 /* total characters we can handle */
1.13 kristaps 55: struct glyph gly[MAXCHAR]; /* glyph metrics */
56: };
57:
1.50 kristaps 58: struct termp_ps {
59: int flags;
60: #define PS_INLINE (1 << 0) /* we're in a word */
61: #define PS_MARGINS (1 << 1) /* we're in the margins */
62: #define PS_NEWPAGE (1 << 2) /* new page, no words yet */
63: size_t pscol; /* visible column (AFM units) */
64: size_t psrow; /* visible row (AFM units) */
65: char *psmarg; /* margin buf */
66: size_t psmargsz; /* margin buf size */
67: size_t psmargcur; /* cur index in margin buf */
68: char last; /* character buffer */
69: enum termfont lastf; /* last set font */
70: size_t scale; /* font scaling factor */
71: size_t pages; /* number of pages shown */
72: size_t lineheight; /* line height (AFM units) */
73: size_t top; /* body top (AFM units) */
74: size_t bottom; /* body bottom (AFM units) */
75: size_t height; /* page height (AFM units */
76: size_t width; /* page width (AFM units) */
77: size_t left; /* body left (AFM units) */
78: size_t header; /* header pos (AFM units) */
79: size_t footer; /* footer pos (AFM units) */
80: size_t pdfbytes; /* current output byte */
81: size_t pdflastpg; /* byte of last page mark */
82: size_t pdfbody; /* start of body object */
83: size_t *pdfobjs; /* table of object offsets */
84: size_t pdfobjsz; /* size of pdfobjs */
85: };
86:
87: static double ps_hspan(const struct termp *,
88: const struct roffsu *);
89: static size_t ps_width(const struct termp *, int);
90: static void ps_advance(struct termp *, size_t);
91: static void ps_begin(struct termp *);
92: static void ps_closepage(struct termp *);
93: static void ps_end(struct termp *);
94: static void ps_endline(struct termp *);
95: static void ps_fclose(struct termp *);
96: static void ps_growbuf(struct termp *, size_t);
97: static void ps_letter(struct termp *, int);
98: static void ps_pclose(struct termp *);
99: static void ps_pletter(struct termp *, int);
1.55 ! joerg 100: #if __GNUC__ - 0 >= 4
! 101: __attribute__((__format__ (__printf__, 2, 3)))
! 102: #endif
1.50 kristaps 103: static void ps_printf(struct termp *, const char *, ...);
104: static void ps_putchar(struct termp *, char);
105: static void ps_setfont(struct termp *, enum termfont);
106: static struct termp *pspdf_alloc(char *);
107: static void pdf_obj(struct termp *, size_t);
108:
1.13 kristaps 109: /*
110: * We define, for the time being, three fonts: bold, oblique/italic, and
111: * normal (roman). The following table hard-codes the font metrics for
112: * ASCII, i.e., 32--127.
113: */
114:
1.16 kristaps 115: static const struct font fonts[TERMFONT__MAX] = {
1.24 kristaps 116: { "Times-Roman", {
117: { 250 },
118: { 333 },
119: { 408 },
120: { 500 },
121: { 500 },
122: { 833 },
123: { 778 },
124: { 333 },
125: { 333 },
126: { 333 },
127: { 500 },
128: { 564 },
129: { 250 },
130: { 333 },
131: { 250 },
132: { 278 },
133: { 500 },
134: { 500 },
135: { 500 },
136: { 500 },
137: { 500 },
138: { 500 },
139: { 500 },
140: { 500 },
141: { 500 },
142: { 500 },
143: { 278 },
144: { 278 },
145: { 564 },
146: { 564 },
147: { 564 },
148: { 444 },
149: { 921 },
150: { 722 },
151: { 667 },
152: { 667 },
153: { 722 },
154: { 611 },
155: { 556 },
156: { 722 },
157: { 722 },
158: { 333 },
159: { 389 },
160: { 722 },
161: { 611 },
162: { 889 },
163: { 722 },
164: { 722 },
165: { 556 },
166: { 722 },
167: { 667 },
168: { 556 },
169: { 611 },
170: { 722 },
171: { 722 },
172: { 944 },
173: { 722 },
174: { 722 },
175: { 611 },
176: { 333 },
177: { 278 },
178: { 333 },
179: { 469 },
180: { 500 },
181: { 333 },
182: { 444 },
183: { 500 },
184: { 444 },
185: { 500},
186: { 444},
187: { 333},
188: { 500},
189: { 500},
190: { 278},
191: { 278},
192: { 500},
193: { 278},
194: { 778},
195: { 500},
196: { 500},
197: { 500},
198: { 500},
199: { 333},
200: { 389},
201: { 278},
202: { 500},
203: { 500},
204: { 722},
205: { 500},
206: { 500},
207: { 444},
208: { 480},
209: { 200},
210: { 480},
211: { 541},
212: } },
213: { "Times-Bold", {
214: { 250 },
215: { 333 },
216: { 555 },
217: { 500 },
218: { 500 },
219: { 1000 },
220: { 833 },
221: { 333 },
222: { 333 },
223: { 333 },
224: { 500 },
225: { 570 },
226: { 250 },
227: { 333 },
228: { 250 },
229: { 278 },
230: { 500 },
231: { 500 },
232: { 500 },
233: { 500 },
234: { 500 },
235: { 500 },
236: { 500 },
237: { 500 },
238: { 500 },
239: { 500 },
240: { 333 },
241: { 333 },
242: { 570 },
243: { 570 },
244: { 570 },
245: { 500 },
246: { 930 },
247: { 722 },
248: { 667 },
249: { 722 },
250: { 722 },
251: { 667 },
252: { 611 },
253: { 778 },
254: { 778 },
255: { 389 },
256: { 500 },
257: { 778 },
258: { 667 },
259: { 944 },
260: { 722 },
261: { 778 },
262: { 611 },
263: { 778 },
264: { 722 },
265: { 556 },
266: { 667 },
267: { 722 },
268: { 722 },
269: { 1000 },
270: { 722 },
271: { 722 },
272: { 667 },
273: { 333 },
274: { 278 },
275: { 333 },
276: { 581 },
277: { 500 },
278: { 333 },
279: { 500 },
280: { 556 },
281: { 444 },
1.22 kristaps 282: { 556 },
1.24 kristaps 283: { 444 },
284: { 333 },
1.22 kristaps 285: { 500 },
1.24 kristaps 286: { 556 },
1.22 kristaps 287: { 278 },
1.24 kristaps 288: { 333 },
289: { 556 },
1.22 kristaps 290: { 278 },
1.24 kristaps 291: { 833 },
1.22 kristaps 292: { 556 },
1.24 kristaps 293: { 500 },
1.22 kristaps 294: { 556 },
295: { 556 },
296: { 444 },
1.24 kristaps 297: { 389 },
298: { 333 },
1.22 kristaps 299: { 556 },
300: { 500 },
1.24 kristaps 301: { 722 },
302: { 500 },
1.22 kristaps 303: { 500 },
1.24 kristaps 304: { 444 },
305: { 394 },
306: { 220 },
307: { 394 },
308: { 520 },
1.13 kristaps 309: } },
1.24 kristaps 310: { "Times-Italic", {
311: { 250 },
312: { 333 },
313: { 420 },
314: { 500 },
315: { 500 },
316: { 833 },
317: { 778 },
318: { 333 },
319: { 333 },
320: { 333 },
321: { 500 },
322: { 675 },
323: { 250 },
324: { 333 },
325: { 250 },
326: { 278 },
327: { 500 },
328: { 500 },
329: { 500 },
330: { 500 },
331: { 500 },
332: { 500 },
333: { 500 },
334: { 500 },
335: { 500 },
336: { 500 },
337: { 333 },
338: { 333 },
339: { 675 },
340: { 675 },
341: { 675 },
342: { 500 },
343: { 920 },
344: { 611 },
345: { 611 },
346: { 667 },
347: { 722 },
348: { 611 },
349: { 611 },
350: { 722 },
351: { 722 },
352: { 333 },
353: { 444 },
354: { 667 },
355: { 556 },
356: { 833 },
357: { 667 },
358: { 722 },
359: { 611 },
360: { 722 },
361: { 611 },
362: { 500 },
363: { 556 },
364: { 722 },
365: { 611 },
366: { 833 },
367: { 611 },
368: { 556 },
369: { 556 },
370: { 389 },
371: { 278 },
372: { 389 },
373: { 422 },
374: { 500 },
375: { 333 },
376: { 500 },
377: { 500 },
378: { 444 },
1.22 kristaps 379: { 500 },
1.24 kristaps 380: { 444 },
381: { 278 },
1.22 kristaps 382: { 500 },
383: { 500 },
384: { 278 },
1.24 kristaps 385: { 278 },
386: { 444 },
387: { 278 },
388: { 722 },
389: { 500 },
390: { 500 },
391: { 500 },
1.22 kristaps 392: { 500 },
1.24 kristaps 393: { 389 },
394: { 389 },
1.22 kristaps 395: { 278 },
396: { 500 },
1.24 kristaps 397: { 444 },
398: { 667 },
399: { 444 },
400: { 444 },
401: { 389 },
402: { 400 },
1.22 kristaps 403: { 275 },
1.24 kristaps 404: { 400 },
405: { 541 },
1.13 kristaps 406: } },
407: };
408:
1.37 kristaps 409: void *
410: pdf_alloc(char *outopts)
411: {
412: struct termp *p;
413:
1.38 kristaps 414: if (NULL != (p = pspdf_alloc(outopts)))
415: p->type = TERMTYPE_PDF;
1.37 kristaps 416:
417: return(p);
418: }
1.2 kristaps 419:
1.1 kristaps 420: void *
1.17 kristaps 421: ps_alloc(char *outopts)
1.1 kristaps 422: {
423: struct termp *p;
1.37 kristaps 424:
1.38 kristaps 425: if (NULL != (p = pspdf_alloc(outopts)))
426: p->type = TERMTYPE_PS;
1.37 kristaps 427:
428: return(p);
429: }
430:
431: static struct termp *
432: pspdf_alloc(char *outopts)
433: {
434: struct termp *p;
1.52 kristaps 435: unsigned int pagex, pagey;
436: size_t marginx, marginy, lineheight;
1.17 kristaps 437: const char *toks[2];
1.25 kristaps 438: const char *pp;
1.17 kristaps 439: char *v;
1.1 kristaps 440:
1.51 kristaps 441: p = mandoc_calloc(1, sizeof(struct termp));
442: p->enc = TERMENC_ASCII;
1.50 kristaps 443: p->ps = mandoc_calloc(1, sizeof(struct termp_ps));
1.1 kristaps 444:
1.19 kristaps 445: p->advance = ps_advance;
1.2 kristaps 446: p->begin = ps_begin;
447: p->end = ps_end;
448: p->endline = ps_endline;
1.19 kristaps 449: p->hspan = ps_hspan;
450: p->letter = ps_letter;
1.11 kristaps 451: p->width = ps_width;
1.21 kristaps 452:
1.17 kristaps 453: toks[0] = "paper";
454: toks[1] = NULL;
455:
1.25 kristaps 456: pp = NULL;
1.19 kristaps 457:
1.17 kristaps 458: while (outopts && *outopts)
459: switch (getsubopt(&outopts, UNCONST(toks), &v)) {
460: case (0):
1.25 kristaps 461: pp = v;
1.17 kristaps 462: break;
463: default:
464: break;
465: }
1.16 kristaps 466:
1.25 kristaps 467: /* Default to US letter (millimetres). */
468:
1.31 kristaps 469: pagex = 216;
470: pagey = 279;
1.25 kristaps 471:
472: /*
473: * The ISO-269 paper sizes can be calculated automatically, but
474: * it would require bringing in -lm for pow() and I'd rather not
475: * do that. So just do it the easy way for now. Since this
476: * only happens once, I'm not terribly concerned.
477: */
478:
479: if (pp && strcasecmp(pp, "letter")) {
480: if (0 == strcasecmp(pp, "a3")) {
481: pagex = 297;
482: pagey = 420;
483: } else if (0 == strcasecmp(pp, "a4")) {
484: pagex = 210;
485: pagey = 297;
486: } else if (0 == strcasecmp(pp, "a5")) {
487: pagex = 148;
488: pagey = 210;
489: } else if (0 == strcasecmp(pp, "legal")) {
490: pagex = 216;
491: pagey = 356;
1.52 kristaps 492: } else if (2 != sscanf(pp, "%ux%u", &pagex, &pagey))
1.25 kristaps 493: fprintf(stderr, "%s: Unknown paper\n", pp);
1.54 schwarze 494: }
1.27 kristaps 495:
496: /*
497: * This MUST be defined before any PNT2AFM or AFM2PNT
498: * calculations occur.
499: */
500:
1.50 kristaps 501: p->ps->scale = 11;
1.27 kristaps 502:
1.25 kristaps 503: /* Remember millimetres -> AFM units. */
504:
505: pagex = PNT2AFM(p, ((double)pagex * 2.834));
506: pagey = PNT2AFM(p, ((double)pagey * 2.834));
507:
1.28 kristaps 508: /* Margins are 1/9 the page x and y. */
1.27 kristaps 509:
1.29 kristaps 510: marginx = /* LINTED */
511: (size_t)((double)pagex / 9.0);
512: marginy = /* LINTED */
513: (size_t)((double)pagey / 9.0);
1.27 kristaps 514:
1.31 kristaps 515: /* Line-height is 1.4em. */
516:
1.50 kristaps 517: lineheight = PNT2AFM(p, ((double)p->ps->scale * 1.4));
1.16 kristaps 518:
1.52 kristaps 519: p->ps->width = (size_t)pagex;
520: p->ps->height = (size_t)pagey;
1.50 kristaps 521: p->ps->header = pagey - (marginy / 2) - (lineheight / 2);
522: p->ps->top = pagey - marginy;
523: p->ps->footer = (marginy / 2) - (lineheight / 2);
524: p->ps->bottom = marginy;
525: p->ps->left = marginx;
526: p->ps->lineheight = lineheight;
1.16 kristaps 527:
1.28 kristaps 528: p->defrmargin = pagex - (marginx * 2);
1.1 kristaps 529: return(p);
530: }
531:
532:
533: void
1.37 kristaps 534: pspdf_free(void *arg)
1.1 kristaps 535: {
1.4 kristaps 536: struct termp *p;
537:
538: p = (struct termp *)arg;
539:
1.50 kristaps 540: if (p->ps->psmarg)
541: free(p->ps->psmarg);
542: if (p->ps->pdfobjs)
543: free(p->ps->pdfobjs);
1.4 kristaps 544:
1.50 kristaps 545: free(p->ps);
1.4 kristaps 546: term_free(p);
547: }
548:
549:
550: static void
551: ps_printf(struct termp *p, const char *fmt, ...)
552: {
553: va_list ap;
1.37 kristaps 554: int pos, len;
1.4 kristaps 555:
556: va_start(ap, fmt);
557:
558: /*
559: * If we're running in regular mode, then pipe directly into
560: * vprintf(). If we're processing margins, then push the data
561: * into our growable margin buffer.
562: */
1.1 kristaps 563:
1.50 kristaps 564: if ( ! (PS_MARGINS & p->ps->flags)) {
1.37 kristaps 565: len = vprintf(fmt, ap);
1.4 kristaps 566: va_end(ap);
1.50 kristaps 567: p->ps->pdfbytes += /* LINTED */
1.37 kristaps 568: len < 0 ? 0 : (size_t)len;
1.4 kristaps 569: return;
570: }
571:
572: /*
573: * XXX: I assume that the in-margin print won't exceed
574: * PS_BUFSLOP (128 bytes), which is reasonable but still an
575: * assumption that will cause pukeage if it's not the case.
576: */
577:
1.40 joerg 578: ps_growbuf(p, PS_BUFSLOP);
1.4 kristaps 579:
1.50 kristaps 580: pos = (int)p->ps->psmargcur;
1.54 schwarze 581: vsnprintf(&p->ps->psmarg[pos], PS_BUFSLOP, fmt, ap);
1.5 kristaps 582:
583: va_end(ap);
1.37 kristaps 584:
1.50 kristaps 585: p->ps->psmargcur = strlen(p->ps->psmarg);
1.4 kristaps 586: }
587:
588:
589: static void
590: ps_putchar(struct termp *p, char c)
591: {
592: int pos;
593:
594: /* See ps_printf(). */
595:
1.50 kristaps 596: if ( ! (PS_MARGINS & p->ps->flags)) {
1.44 kristaps 597: /* LINTED */
1.4 kristaps 598: putchar(c);
1.50 kristaps 599: p->ps->pdfbytes++;
1.4 kristaps 600: return;
601: }
602:
1.40 joerg 603: ps_growbuf(p, 2);
1.4 kristaps 604:
1.50 kristaps 605: pos = (int)p->ps->psmargcur++;
606: p->ps->psmarg[pos++] = c;
607: p->ps->psmarg[pos] = '\0';
1.2 kristaps 608: }
609:
610:
1.37 kristaps 611: static void
1.39 kristaps 612: pdf_obj(struct termp *p, size_t obj)
613: {
614:
615: assert(obj > 0);
616:
1.50 kristaps 617: if ((obj - 1) >= p->ps->pdfobjsz) {
618: p->ps->pdfobjsz = obj + 128;
619: p->ps->pdfobjs = realloc
620: (p->ps->pdfobjs,
621: p->ps->pdfobjsz * sizeof(size_t));
622: if (NULL == p->ps->pdfobjs) {
1.39 kristaps 623: perror(NULL);
1.44 kristaps 624: exit((int)MANDOCLEVEL_SYSERR);
1.39 kristaps 625: }
626: }
627:
1.50 kristaps 628: p->ps->pdfobjs[(int)obj - 1] = p->ps->pdfbytes;
1.39 kristaps 629: ps_printf(p, "%zu 0 obj\n", obj);
630: }
631:
632:
633: static void
1.37 kristaps 634: ps_closepage(struct termp *p)
635: {
636: int i;
1.38 kristaps 637: size_t len, base;
638:
639: /*
640: * Close out a page that we've already flushed to output. In
641: * PostScript, we simply note that the page must be showed. In
642: * PDF, we must now create the Length, Resource, and Page node
643: * for the page contents.
644: */
1.37 kristaps 645:
1.50 kristaps 646: assert(p->ps->psmarg && p->ps->psmarg[0]);
647: ps_printf(p, "%s", p->ps->psmarg);
1.37 kristaps 648:
1.38 kristaps 649: if (TERMTYPE_PS != p->type) {
1.37 kristaps 650: ps_printf(p, "ET\n");
1.38 kristaps 651:
1.50 kristaps 652: len = p->ps->pdfbytes - p->ps->pdflastpg;
653: base = p->ps->pages * 4 + p->ps->pdfbody;
1.38 kristaps 654:
655: ps_printf(p, "endstream\nendobj\n");
656:
657: /* Length of content. */
1.39 kristaps 658: pdf_obj(p, base + 1);
1.38 kristaps 659: ps_printf(p, "%zu\nendobj\n", len);
660:
661: /* Resource for content. */
1.39 kristaps 662: pdf_obj(p, base + 2);
1.38 kristaps 663: ps_printf(p, "<<\n/ProcSet [/PDF /Text]\n");
1.37 kristaps 664: ps_printf(p, "/Font <<\n");
1.39 kristaps 665: for (i = 0; i < (int)TERMFONT__MAX; i++)
1.37 kristaps 666: ps_printf(p, "/F%d %d 0 R\n", i, 3 + i);
1.38 kristaps 667: ps_printf(p, ">>\n>>\n");
668:
669: /* Page node. */
1.39 kristaps 670: pdf_obj(p, base + 3);
671: ps_printf(p, "<<\n");
1.37 kristaps 672: ps_printf(p, "/Type /Page\n");
673: ps_printf(p, "/Parent 2 0 R\n");
1.38 kristaps 674: ps_printf(p, "/Resources %zu 0 R\n", base + 2);
675: ps_printf(p, "/Contents %zu 0 R\n", base);
676: ps_printf(p, ">>\nendobj\n");
677: } else
678: ps_printf(p, "showpage\n");
1.37 kristaps 679:
1.50 kristaps 680: p->ps->pages++;
681: p->ps->psrow = p->ps->top;
682: assert( ! (PS_NEWPAGE & p->ps->flags));
683: p->ps->flags |= PS_NEWPAGE;
1.37 kristaps 684: }
685:
686:
1.3 kristaps 687: /* ARGSUSED */
1.2 kristaps 688: static void
689: ps_end(struct termp *p)
690: {
1.38 kristaps 691: size_t i, xref, base;
1.2 kristaps 692:
1.4 kristaps 693: /*
694: * At the end of the file, do one last showpage. This is the
695: * same behaviour as groff(1) and works for multiple pages as
696: * well as just one.
697: */
698:
1.50 kristaps 699: if ( ! (PS_NEWPAGE & p->ps->flags)) {
700: assert(0 == p->ps->flags);
701: assert('\0' == p->ps->last);
1.37 kristaps 702: ps_closepage(p);
1.30 kristaps 703: }
1.16 kristaps 704:
1.37 kristaps 705: if (TERMTYPE_PS == p->type) {
706: ps_printf(p, "%%%%Trailer\n");
1.50 kristaps 707: ps_printf(p, "%%%%Pages: %zu\n", p->ps->pages);
1.37 kristaps 708: ps_printf(p, "%%%%EOF\n");
709: return;
710: }
711:
1.39 kristaps 712: pdf_obj(p, 2);
713: ps_printf(p, "<<\n/Type /Pages\n");
1.37 kristaps 714: ps_printf(p, "/MediaBox [0 0 %zu %zu]\n",
1.50 kristaps 715: (size_t)AFM2PNT(p, p->ps->width),
716: (size_t)AFM2PNT(p, p->ps->height));
1.37 kristaps 717:
1.50 kristaps 718: ps_printf(p, "/Count %zu\n", p->ps->pages);
1.37 kristaps 719: ps_printf(p, "/Kids [");
720:
1.50 kristaps 721: for (i = 0; i < p->ps->pages; i++)
1.38 kristaps 722: ps_printf(p, " %zu 0 R", i * 4 +
1.50 kristaps 723: p->ps->pdfbody + 3);
1.38 kristaps 724:
1.50 kristaps 725: base = (p->ps->pages - 1) * 4 +
726: p->ps->pdfbody + 4;
1.38 kristaps 727:
728: ps_printf(p, "]\n>>\nendobj\n");
1.39 kristaps 729: pdf_obj(p, base);
1.37 kristaps 730: ps_printf(p, "<<\n");
731: ps_printf(p, "/Type /Catalog\n");
732: ps_printf(p, "/Pages 2 0 R\n");
733: ps_printf(p, ">>\n");
1.50 kristaps 734: xref = p->ps->pdfbytes;
1.37 kristaps 735: ps_printf(p, "xref\n");
1.38 kristaps 736: ps_printf(p, "0 %zu\n", base + 1);
1.39 kristaps 737: ps_printf(p, "0000000000 65535 f \n");
738:
739: for (i = 0; i < base; i++)
740: ps_printf(p, "%.10zu 00000 n \n",
1.50 kristaps 741: p->ps->pdfobjs[(int)i]);
1.39 kristaps 742:
1.37 kristaps 743: ps_printf(p, "trailer\n");
744: ps_printf(p, "<<\n");
1.38 kristaps 745: ps_printf(p, "/Size %zu\n", base + 1);
746: ps_printf(p, "/Root %zu 0 R\n", base);
1.37 kristaps 747: ps_printf(p, "/Info 1 0 R\n");
748: ps_printf(p, ">>\n");
749: ps_printf(p, "startxref\n");
750: ps_printf(p, "%zu\n", xref);
751: ps_printf(p, "%%%%EOF\n");
1.2 kristaps 752: }
753:
754:
755: static void
756: ps_begin(struct termp *p)
757: {
1.13 kristaps 758: time_t t;
1.16 kristaps 759: int i;
1.2 kristaps 760:
1.9 kristaps 761: /*
762: * Print margins into margin buffer. Nothing gets output to the
763: * screen yet, so we don't need to initialise the primary state.
1.2 kristaps 764: */
765:
1.50 kristaps 766: if (p->ps->psmarg) {
767: assert(p->ps->psmargsz);
768: p->ps->psmarg[0] = '\0';
1.4 kristaps 769: }
770:
1.50 kristaps 771: /*p->ps->pdfbytes = 0;*/
772: p->ps->psmargcur = 0;
773: p->ps->flags = PS_MARGINS;
774: p->ps->pscol = p->ps->left;
775: p->ps->psrow = p->ps->header;
1.4 kristaps 776:
1.9 kristaps 777: ps_setfont(p, TERMFONT_NONE);
1.4 kristaps 778:
779: (*p->headf)(p, p->argf);
780: (*p->endline)(p);
781:
1.50 kristaps 782: p->ps->pscol = p->ps->left;
783: p->ps->psrow = p->ps->footer;
1.4 kristaps 784:
785: (*p->footf)(p, p->argf);
786: (*p->endline)(p);
787:
1.50 kristaps 788: p->ps->flags &= ~PS_MARGINS;
1.9 kristaps 789:
1.50 kristaps 790: assert(0 == p->ps->flags);
791: assert(p->ps->psmarg);
792: assert('\0' != p->ps->psmarg[0]);
1.9 kristaps 793:
794: /*
795: * Print header and initialise page state. Following this,
796: * stuff gets printed to the screen, so make sure we're sane.
797: */
1.4 kristaps 798:
1.13 kristaps 799: t = time(NULL);
800:
1.37 kristaps 801: if (TERMTYPE_PS == p->type) {
802: ps_printf(p, "%%!PS-Adobe-3.0\n");
803: ps_printf(p, "%%%%CreationDate: %s", ctime(&t));
804: ps_printf(p, "%%%%DocumentData: Clean7Bit\n");
805: ps_printf(p, "%%%%Orientation: Portrait\n");
806: ps_printf(p, "%%%%Pages: (atend)\n");
807: ps_printf(p, "%%%%PageOrder: Ascend\n");
808: ps_printf(p, "%%%%DocumentMedia: "
809: "Default %zu %zu 0 () ()\n",
1.50 kristaps 810: (size_t)AFM2PNT(p, p->ps->width),
811: (size_t)AFM2PNT(p, p->ps->height));
1.37 kristaps 812: ps_printf(p, "%%%%DocumentNeededResources: font");
813:
814: for (i = 0; i < (int)TERMFONT__MAX; i++)
815: ps_printf(p, " %s", fonts[i].name);
816:
817: ps_printf(p, "\n%%%%EndComments\n");
818: } else {
819: ps_printf(p, "%%PDF-1.1\n");
1.39 kristaps 820: pdf_obj(p, 1);
1.37 kristaps 821: ps_printf(p, "<<\n");
822: ps_printf(p, ">>\n");
823: ps_printf(p, "endobj\n");
824:
825: for (i = 0; i < (int)TERMFONT__MAX; i++) {
1.39 kristaps 826: pdf_obj(p, (size_t)i + 3);
1.37 kristaps 827: ps_printf(p, "<<\n");
828: ps_printf(p, "/Type /Font\n");
829: ps_printf(p, "/Subtype /Type1\n");
1.55 ! joerg 830: ps_printf(p, "/Name /F%d\n", i);
1.37 kristaps 831: ps_printf(p, "/BaseFont /%s\n", fonts[i].name);
832: ps_printf(p, ">>\n");
833: }
834: }
1.16 kristaps 835:
1.50 kristaps 836: p->ps->pdfbody = (size_t)TERMFONT__MAX + 3;
837: p->ps->pscol = p->ps->left;
838: p->ps->psrow = p->ps->top;
839: p->ps->flags |= PS_NEWPAGE;
1.33 kristaps 840: ps_setfont(p, TERMFONT_NONE);
1.2 kristaps 841: }
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) {
856: ps_printf(p, "%%%%Page: %zu %zu\n",
1.50 kristaps 857: p->ps->pages + 1,
858: p->ps->pages + 1);
1.37 kristaps 859: ps_printf(p, "/%s %zu selectfont\n",
1.50 kristaps 860: fonts[(int)p->ps->lastf].name,
861: p->ps->scale);
1.37 kristaps 862: } else {
1.50 kristaps 863: pdf_obj(p, p->ps->pdfbody +
864: p->ps->pages * 4);
1.37 kristaps 865: ps_printf(p, "<<\n");
866: ps_printf(p, "/Length %zu 0 R\n",
1.50 kristaps 867: p->ps->pdfbody + 1 +
868: p->ps->pages * 4);
1.37 kristaps 869: ps_printf(p, ">>\nstream\n");
870: }
1.50 kristaps 871: p->ps->pdflastpg = p->ps->pdfbytes;
872: p->ps->flags &= ~PS_NEWPAGE;
1.32 kristaps 873: }
874:
875: /*
876: * If we're not in a PostScript "word" context, then open one
877: * now at the current cursor.
878: */
1.30 kristaps 879:
1.50 kristaps 880: if ( ! (PS_INLINE & p->ps->flags)) {
1.37 kristaps 881: if (TERMTYPE_PS != p->type) {
882: ps_printf(p, "BT\n/F%d %zu Tf\n",
1.50 kristaps 883: (int)p->ps->lastf,
884: p->ps->scale);
1.37 kristaps 885: ps_printf(p, "%.3f %.3f Td\n(",
1.50 kristaps 886: AFM2PNT(p, p->ps->pscol),
887: AFM2PNT(p, p->ps->psrow));
1.37 kristaps 888: } else
889: ps_printf(p, "%.3f %.3f moveto\n(",
1.50 kristaps 890: AFM2PNT(p, p->ps->pscol),
891: AFM2PNT(p, p->ps->psrow));
892: p->ps->flags |= PS_INLINE;
1.2 kristaps 893: }
894:
1.50 kristaps 895: assert( ! (PS_NEWPAGE & p->ps->flags));
1.29 kristaps 896:
1.2 kristaps 897: /*
898: * We need to escape these characters as per the PostScript
899: * specification. We would also escape non-graphable characters
900: * (like tabs), but none of them would get to this point and
901: * it's superfluous to abort() on them.
902: */
903:
904: switch (c) {
905: case ('('):
906: /* FALLTHROUGH */
907: case (')'):
908: /* FALLTHROUGH */
909: case ('\\'):
1.4 kristaps 910: ps_putchar(p, '\\');
1.2 kristaps 911: break;
912: default:
913: break;
914: }
915:
916: /* Write the character and adjust where we are on the page. */
1.9 kristaps 917:
1.50 kristaps 918: f = (int)p->ps->lastf;
1.13 kristaps 919:
1.45 schwarze 920: if (c <= 32 || (c - 32 >= MAXCHAR)) {
1.13 kristaps 921: ps_putchar(p, ' ');
1.50 kristaps 922: p->ps->pscol += (size_t)fonts[f].gly[0].wx;
1.13 kristaps 923: return;
924: }
925:
1.25 kristaps 926: ps_putchar(p, (char)c);
1.14 kristaps 927: c -= 32;
1.50 kristaps 928: p->ps->pscol += (size_t)fonts[f].gly[c].wx;
1.2 kristaps 929: }
930:
931:
932: static void
1.9 kristaps 933: ps_pclose(struct termp *p)
934: {
935:
936: /*
937: * Spit out that we're exiting a word context (this is a
938: * "partial close" because we don't check the last-char buffer
939: * or anything).
940: */
941:
1.50 kristaps 942: if ( ! (PS_INLINE & p->ps->flags))
1.9 kristaps 943: return;
944:
1.37 kristaps 945: if (TERMTYPE_PS != p->type) {
946: ps_printf(p, ") Tj\nET\n");
947: } else
948: ps_printf(p, ") show\n");
949:
1.50 kristaps 950: p->ps->flags &= ~PS_INLINE;
1.9 kristaps 951: }
952:
953:
954: static void
955: ps_fclose(struct termp *p)
956: {
957:
958: /*
959: * Strong closure: if we have a last-char, spit it out after
960: * checking that we're in the right font mode. This will of
961: * course open a new scope, if applicable.
962: *
963: * Following this, close out any scope that's open.
964: */
965:
1.50 kristaps 966: if ('\0' != p->ps->last) {
967: if (p->ps->lastf != TERMFONT_NONE) {
1.9 kristaps 968: ps_pclose(p);
969: ps_setfont(p, TERMFONT_NONE);
970: }
1.50 kristaps 971: ps_pletter(p, p->ps->last);
972: p->ps->last = '\0';
1.9 kristaps 973: }
974:
1.50 kristaps 975: if ( ! (PS_INLINE & p->ps->flags))
1.9 kristaps 976: return;
977:
978: ps_pclose(p);
979: }
980:
981:
982: static void
1.49 kristaps 983: ps_letter(struct termp *p, int arg)
1.8 kristaps 984: {
1.49 kristaps 985: char cc, c;
986:
987: /* LINTED */
988: c = arg >= 128 || arg <= 0 ? '?' : arg;
1.9 kristaps 989:
990: /*
991: * State machine dictates whether to buffer the last character
992: * or not. Basically, encoded words are detected by checking if
993: * we're an "8" and switching on the buffer. Then we put "8" in
994: * our buffer, and on the next charater, flush both character
995: * and buffer. Thus, "regular" words are detected by having a
996: * regular character and a regular buffer character.
997: */
998:
1.50 kristaps 999: if ('\0' == p->ps->last) {
1.8 kristaps 1000: assert(8 != c);
1.50 kristaps 1001: p->ps->last = c;
1.8 kristaps 1002: return;
1.50 kristaps 1003: } else if (8 == p->ps->last) {
1.8 kristaps 1004: assert(8 != c);
1.50 kristaps 1005: p->ps->last = '\0';
1.8 kristaps 1006: } else if (8 == c) {
1.50 kristaps 1007: assert(8 != p->ps->last);
1008: if ('_' == p->ps->last) {
1009: if (p->ps->lastf != TERMFONT_UNDER) {
1.9 kristaps 1010: ps_pclose(p);
1011: ps_setfont(p, TERMFONT_UNDER);
1012: }
1.50 kristaps 1013: } else if (p->ps->lastf != TERMFONT_BOLD) {
1.9 kristaps 1014: ps_pclose(p);
1015: ps_setfont(p, TERMFONT_BOLD);
1016: }
1.50 kristaps 1017: p->ps->last = c;
1.8 kristaps 1018: return;
1019: } else {
1.50 kristaps 1020: if (p->ps->lastf != TERMFONT_NONE) {
1.9 kristaps 1021: ps_pclose(p);
1022: ps_setfont(p, TERMFONT_NONE);
1023: }
1.50 kristaps 1024: cc = p->ps->last;
1025: p->ps->last = c;
1.8 kristaps 1026: c = cc;
1027: }
1028:
1.9 kristaps 1029: ps_pletter(p, c);
1.8 kristaps 1030: }
1031:
1032:
1033: static void
1.2 kristaps 1034: ps_advance(struct termp *p, size_t len)
1035: {
1036:
1.9 kristaps 1037: /*
1038: * Advance some spaces. This can probably be made smarter,
1039: * i.e., to have multiple space-separated words in the same
1040: * scope, but this is easier: just close out the current scope
1041: * and readjust our column settings.
1042: */
1.8 kristaps 1043:
1.9 kristaps 1044: ps_fclose(p);
1.50 kristaps 1045: p->ps->pscol += len;
1.2 kristaps 1046: }
1047:
1048:
1049: static void
1050: ps_endline(struct termp *p)
1051: {
1.8 kristaps 1052:
1.9 kristaps 1053: /* Close out any scopes we have open: we're at eoln. */
1054:
1055: ps_fclose(p);
1.2 kristaps 1056:
1.9 kristaps 1057: /*
1058: * If we're in the margin, don't try to recalculate our current
1059: * row. XXX: if the column tries to be fancy with multiple
1060: * lines, we'll do nasty stuff.
1061: */
1.2 kristaps 1062:
1.50 kristaps 1063: if (PS_MARGINS & p->ps->flags)
1.29 kristaps 1064: return;
1065:
1066: /* Left-justify. */
1067:
1.50 kristaps 1068: p->ps->pscol = p->ps->left;
1.29 kristaps 1069:
1070: /* If we haven't printed anything, return. */
1071:
1.50 kristaps 1072: if (PS_NEWPAGE & p->ps->flags)
1.2 kristaps 1073: return;
1074:
1.9 kristaps 1075: /*
1076: * Put us down a line. If we're at the page bottom, spit out a
1077: * showpage and restart our row.
1078: */
1079:
1.50 kristaps 1080: if (p->ps->psrow >= p->ps->lineheight +
1081: p->ps->bottom) {
1082: p->ps->psrow -= p->ps->lineheight;
1.2 kristaps 1083: return;
1084: }
1085:
1.37 kristaps 1086: ps_closepage(p);
1.1 kristaps 1087: }
1.9 kristaps 1088:
1089:
1090: static void
1091: ps_setfont(struct termp *p, enum termfont f)
1092: {
1093:
1.16 kristaps 1094: assert(f < TERMFONT__MAX);
1.50 kristaps 1095: p->ps->lastf = f;
1.32 kristaps 1096:
1097: /*
1098: * If we're still at the top of the page, let the font-setting
1099: * be delayed until we actually have stuff to print.
1100: */
1101:
1.50 kristaps 1102: if (PS_NEWPAGE & p->ps->flags)
1.32 kristaps 1103: return;
1104:
1.37 kristaps 1105: if (TERMTYPE_PS == p->type)
1106: ps_printf(p, "/%s %zu selectfont\n",
1107: fonts[(int)f].name,
1.50 kristaps 1108: p->ps->scale);
1.37 kristaps 1109: else
1110: ps_printf(p, "/F%d %zu Tf\n",
1111: (int)f,
1.50 kristaps 1112: p->ps->scale);
1.9 kristaps 1113: }
1114:
1.11 kristaps 1115:
1.12 kristaps 1116: /* ARGSUSED */
1.11 kristaps 1117: static size_t
1.49 kristaps 1118: ps_width(const struct termp *p, int c)
1.11 kristaps 1119: {
1120:
1.14 kristaps 1121: if (c <= 32 || c - 32 >= MAXCHAR)
1.36 kristaps 1122: return((size_t)fonts[(int)TERMFONT_NONE].gly[0].wx);
1.14 kristaps 1123:
1124: c -= 32;
1.49 kristaps 1125: return((size_t)fonts[(int)TERMFONT_NONE].gly[c].wx);
1.11 kristaps 1126: }
1.19 kristaps 1127:
1128:
1.20 kristaps 1129: static double
1.19 kristaps 1130: ps_hspan(const struct termp *p, const struct roffsu *su)
1131: {
1132: double r;
1133:
1134: /*
1135: * All of these measurements are derived by converting from the
1.21 kristaps 1136: * native measurement to AFM units.
1.19 kristaps 1137: */
1138:
1139: switch (su->unit) {
1140: case (SCALE_CM):
1.21 kristaps 1141: r = PNT2AFM(p, su->scale * 28.34);
1.19 kristaps 1142: break;
1143: case (SCALE_IN):
1.21 kristaps 1144: r = PNT2AFM(p, su->scale * 72);
1.19 kristaps 1145: break;
1146: case (SCALE_PC):
1.21 kristaps 1147: r = PNT2AFM(p, su->scale * 12);
1.19 kristaps 1148: break;
1149: case (SCALE_PT):
1.21 kristaps 1150: r = PNT2AFM(p, su->scale * 100);
1.19 kristaps 1151: break;
1152: case (SCALE_EM):
1.36 kristaps 1153: r = su->scale *
1.19 kristaps 1154: fonts[(int)TERMFONT_NONE].gly[109 - 32].wx;
1155: break;
1156: case (SCALE_MM):
1.21 kristaps 1157: r = PNT2AFM(p, su->scale * 2.834);
1.19 kristaps 1158: break;
1159: case (SCALE_EN):
1.36 kristaps 1160: r = su->scale *
1.19 kristaps 1161: fonts[(int)TERMFONT_NONE].gly[110 - 32].wx;
1162: break;
1163: case (SCALE_VS):
1.50 kristaps 1164: r = su->scale * p->ps->lineheight;
1.19 kristaps 1165: break;
1166: default:
1167: r = su->scale;
1168: break;
1169: }
1170:
1.20 kristaps 1171: return(r);
1.50 kristaps 1172: }
1173:
1174: static void
1175: ps_growbuf(struct termp *p, size_t sz)
1176: {
1177: if (p->ps->psmargcur + sz <= p->ps->psmargsz)
1178: return;
1179:
1180: if (sz < PS_BUFSLOP)
1181: sz = PS_BUFSLOP;
1182:
1183: p->ps->psmargsz += sz;
1184:
1185: p->ps->psmarg = mandoc_realloc
1186: (p->ps->psmarg, p->ps->psmargsz);
1.19 kristaps 1187: }
1188:
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