Annotation of mandoc/term_ps.c, Revision 1.58
1.58 ! schwarze 1: /* $Id: term_ps.c,v 1.57 2014/03/30 19:47:48 schwarze Exp $ */
1.1 kristaps 2: /*
1.53 schwarze 3: * Copyright (c) 2010, 2011 Kristaps Dzonsons <kristaps@bsd.lv>
1.57 schwarze 4: * Copyright (c) 2014 Ingo Schwarze <schwarze@openbsd.org>
1.1 kristaps 5: *
6: * Permission to use, copy, modify, and distribute this software for any
7: * purpose with or without fee is hereby granted, provided that the above
8: * copyright notice and this permission notice appear in all copies.
9: *
10: * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
11: * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
12: * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
13: * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
14: * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
15: * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
16: * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
17: */
18: #ifdef HAVE_CONFIG_H
19: #include "config.h"
20: #endif
21:
1.43 kristaps 22: #include <sys/types.h>
1.4 kristaps 23:
1.2 kristaps 24: #include <assert.h>
1.4 kristaps 25: #include <stdarg.h>
1.17 kristaps 26: #include <stdint.h>
1.2 kristaps 27: #include <stdio.h>
1.1 kristaps 28: #include <stdlib.h>
1.4 kristaps 29: #include <string.h>
1.13 kristaps 30: #include <time.h>
1.26 kristaps 31: #include <unistd.h>
1.1 kristaps 32:
1.42 schwarze 33: #include "mandoc.h"
1.56 schwarze 34: #include "mandoc_aux.h"
1.1 kristaps 35: #include "out.h"
36: #include "main.h"
37: #include "term.h"
38:
1.50 kristaps 39: /* These work the buffer used by the header and footer. */
40: #define PS_BUFSLOP 128
41:
1.21 kristaps 42: /* Convert PostScript point "x" to an AFM unit. */
1.25 kristaps 43: #define PNT2AFM(p, x) /* LINTED */ \
1.50 kristaps 44: (size_t)((double)(x) * (1000.0 / (double)(p)->ps->scale))
1.21 kristaps 45:
46: /* Convert an AFM unit "x" to a PostScript points */
1.25 kristaps 47: #define AFM2PNT(p, x) /* LINTED */ \
1.50 kristaps 48: ((double)(x) / (1000.0 / (double)(p)->ps->scale))
1.21 kristaps 49:
1.13 kristaps 50: struct glyph {
1.36 kristaps 51: unsigned short wx; /* WX in AFM */
1.13 kristaps 52: };
53:
54: struct font {
55: const char *name; /* FontName in AFM */
1.15 kristaps 56: #define MAXCHAR 95 /* total characters we can handle */
1.13 kristaps 57: struct glyph gly[MAXCHAR]; /* glyph metrics */
58: };
59:
1.50 kristaps 60: struct termp_ps {
61: int flags;
62: #define PS_INLINE (1 << 0) /* we're in a word */
63: #define PS_MARGINS (1 << 1) /* we're in the margins */
64: #define PS_NEWPAGE (1 << 2) /* new page, no words yet */
65: size_t pscol; /* visible column (AFM units) */
66: size_t psrow; /* visible row (AFM units) */
67: char *psmarg; /* margin buf */
68: size_t psmargsz; /* margin buf size */
69: size_t psmargcur; /* cur index in margin buf */
70: char last; /* character buffer */
71: enum termfont lastf; /* last set font */
72: size_t scale; /* font scaling factor */
73: size_t pages; /* number of pages shown */
74: size_t lineheight; /* line height (AFM units) */
75: size_t top; /* body top (AFM units) */
76: size_t bottom; /* body bottom (AFM units) */
77: size_t height; /* page height (AFM units */
78: size_t width; /* page width (AFM units) */
1.57 schwarze 79: size_t lastwidth; /* page width before last ll */
1.50 kristaps 80: size_t left; /* body left (AFM units) */
81: size_t header; /* header pos (AFM units) */
82: size_t footer; /* footer pos (AFM units) */
83: size_t pdfbytes; /* current output byte */
84: size_t pdflastpg; /* byte of last page mark */
85: size_t pdfbody; /* start of body object */
86: size_t *pdfobjs; /* table of object offsets */
87: size_t pdfobjsz; /* size of pdfobjs */
88: };
89:
90: static double ps_hspan(const struct termp *,
91: const struct roffsu *);
92: static size_t ps_width(const struct termp *, int);
93: static void ps_advance(struct termp *, size_t);
94: static void ps_begin(struct termp *);
95: static void ps_closepage(struct termp *);
96: static void ps_end(struct termp *);
97: static void ps_endline(struct termp *);
98: static void ps_fclose(struct termp *);
99: static void ps_growbuf(struct termp *, size_t);
100: static void ps_letter(struct termp *, int);
101: static void ps_pclose(struct termp *);
102: static void ps_pletter(struct termp *, int);
1.55 joerg 103: #if __GNUC__ - 0 >= 4
104: __attribute__((__format__ (__printf__, 2, 3)))
105: #endif
1.50 kristaps 106: static void ps_printf(struct termp *, const char *, ...);
107: static void ps_putchar(struct termp *, char);
108: static void ps_setfont(struct termp *, enum termfont);
1.58 ! schwarze 109: static void ps_setwidth(struct termp *, int, size_t);
1.50 kristaps 110: static struct termp *pspdf_alloc(char *);
111: static void pdf_obj(struct termp *, size_t);
112:
1.13 kristaps 113: /*
114: * We define, for the time being, three fonts: bold, oblique/italic, and
115: * normal (roman). The following table hard-codes the font metrics for
116: * ASCII, i.e., 32--127.
117: */
118:
1.16 kristaps 119: static const struct font fonts[TERMFONT__MAX] = {
1.24 kristaps 120: { "Times-Roman", {
121: { 250 },
122: { 333 },
123: { 408 },
124: { 500 },
125: { 500 },
126: { 833 },
127: { 778 },
128: { 333 },
129: { 333 },
130: { 333 },
131: { 500 },
132: { 564 },
133: { 250 },
134: { 333 },
135: { 250 },
136: { 278 },
137: { 500 },
138: { 500 },
139: { 500 },
140: { 500 },
141: { 500 },
142: { 500 },
143: { 500 },
144: { 500 },
145: { 500 },
146: { 500 },
147: { 278 },
148: { 278 },
149: { 564 },
150: { 564 },
151: { 564 },
152: { 444 },
153: { 921 },
154: { 722 },
155: { 667 },
156: { 667 },
157: { 722 },
158: { 611 },
159: { 556 },
160: { 722 },
161: { 722 },
162: { 333 },
163: { 389 },
164: { 722 },
165: { 611 },
166: { 889 },
167: { 722 },
168: { 722 },
169: { 556 },
170: { 722 },
171: { 667 },
172: { 556 },
173: { 611 },
174: { 722 },
175: { 722 },
176: { 944 },
177: { 722 },
178: { 722 },
179: { 611 },
180: { 333 },
181: { 278 },
182: { 333 },
183: { 469 },
184: { 500 },
185: { 333 },
186: { 444 },
187: { 500 },
188: { 444 },
189: { 500},
190: { 444},
191: { 333},
192: { 500},
193: { 500},
194: { 278},
195: { 278},
196: { 500},
197: { 278},
198: { 778},
199: { 500},
200: { 500},
201: { 500},
202: { 500},
203: { 333},
204: { 389},
205: { 278},
206: { 500},
207: { 500},
208: { 722},
209: { 500},
210: { 500},
211: { 444},
212: { 480},
213: { 200},
214: { 480},
215: { 541},
216: } },
217: { "Times-Bold", {
218: { 250 },
219: { 333 },
220: { 555 },
221: { 500 },
222: { 500 },
223: { 1000 },
224: { 833 },
225: { 333 },
226: { 333 },
227: { 333 },
228: { 500 },
229: { 570 },
230: { 250 },
231: { 333 },
232: { 250 },
233: { 278 },
234: { 500 },
235: { 500 },
236: { 500 },
237: { 500 },
238: { 500 },
239: { 500 },
240: { 500 },
241: { 500 },
242: { 500 },
243: { 500 },
244: { 333 },
245: { 333 },
246: { 570 },
247: { 570 },
248: { 570 },
249: { 500 },
250: { 930 },
251: { 722 },
252: { 667 },
253: { 722 },
254: { 722 },
255: { 667 },
256: { 611 },
257: { 778 },
258: { 778 },
259: { 389 },
260: { 500 },
261: { 778 },
262: { 667 },
263: { 944 },
264: { 722 },
265: { 778 },
266: { 611 },
267: { 778 },
268: { 722 },
269: { 556 },
270: { 667 },
271: { 722 },
272: { 722 },
273: { 1000 },
274: { 722 },
275: { 722 },
276: { 667 },
277: { 333 },
278: { 278 },
279: { 333 },
280: { 581 },
281: { 500 },
282: { 333 },
283: { 500 },
284: { 556 },
285: { 444 },
1.22 kristaps 286: { 556 },
1.24 kristaps 287: { 444 },
288: { 333 },
1.22 kristaps 289: { 500 },
1.24 kristaps 290: { 556 },
1.22 kristaps 291: { 278 },
1.24 kristaps 292: { 333 },
293: { 556 },
1.22 kristaps 294: { 278 },
1.24 kristaps 295: { 833 },
1.22 kristaps 296: { 556 },
1.24 kristaps 297: { 500 },
1.22 kristaps 298: { 556 },
299: { 556 },
300: { 444 },
1.24 kristaps 301: { 389 },
302: { 333 },
1.22 kristaps 303: { 556 },
304: { 500 },
1.24 kristaps 305: { 722 },
306: { 500 },
1.22 kristaps 307: { 500 },
1.24 kristaps 308: { 444 },
309: { 394 },
310: { 220 },
311: { 394 },
312: { 520 },
1.13 kristaps 313: } },
1.24 kristaps 314: { "Times-Italic", {
315: { 250 },
316: { 333 },
317: { 420 },
318: { 500 },
319: { 500 },
320: { 833 },
321: { 778 },
322: { 333 },
323: { 333 },
324: { 333 },
325: { 500 },
326: { 675 },
327: { 250 },
328: { 333 },
329: { 250 },
330: { 278 },
331: { 500 },
332: { 500 },
333: { 500 },
334: { 500 },
335: { 500 },
336: { 500 },
337: { 500 },
338: { 500 },
339: { 500 },
340: { 500 },
341: { 333 },
342: { 333 },
343: { 675 },
344: { 675 },
345: { 675 },
346: { 500 },
347: { 920 },
348: { 611 },
349: { 611 },
350: { 667 },
351: { 722 },
352: { 611 },
353: { 611 },
354: { 722 },
355: { 722 },
356: { 333 },
357: { 444 },
358: { 667 },
359: { 556 },
360: { 833 },
361: { 667 },
362: { 722 },
363: { 611 },
364: { 722 },
365: { 611 },
366: { 500 },
367: { 556 },
368: { 722 },
369: { 611 },
370: { 833 },
371: { 611 },
372: { 556 },
373: { 556 },
374: { 389 },
375: { 278 },
376: { 389 },
377: { 422 },
378: { 500 },
379: { 333 },
380: { 500 },
381: { 500 },
382: { 444 },
1.22 kristaps 383: { 500 },
1.24 kristaps 384: { 444 },
385: { 278 },
1.22 kristaps 386: { 500 },
387: { 500 },
388: { 278 },
1.24 kristaps 389: { 278 },
390: { 444 },
391: { 278 },
392: { 722 },
393: { 500 },
394: { 500 },
395: { 500 },
1.22 kristaps 396: { 500 },
1.24 kristaps 397: { 389 },
398: { 389 },
1.22 kristaps 399: { 278 },
400: { 500 },
1.24 kristaps 401: { 444 },
402: { 667 },
403: { 444 },
404: { 444 },
405: { 389 },
406: { 400 },
1.22 kristaps 407: { 275 },
1.24 kristaps 408: { 400 },
409: { 541 },
1.13 kristaps 410: } },
411: };
412:
1.37 kristaps 413: void *
414: pdf_alloc(char *outopts)
415: {
416: struct termp *p;
417:
1.38 kristaps 418: if (NULL != (p = pspdf_alloc(outopts)))
419: p->type = TERMTYPE_PDF;
1.37 kristaps 420:
421: return(p);
422: }
1.2 kristaps 423:
1.1 kristaps 424: void *
1.17 kristaps 425: ps_alloc(char *outopts)
1.1 kristaps 426: {
427: struct termp *p;
1.37 kristaps 428:
1.38 kristaps 429: if (NULL != (p = pspdf_alloc(outopts)))
430: p->type = TERMTYPE_PS;
1.37 kristaps 431:
432: return(p);
433: }
434:
435: static struct termp *
436: pspdf_alloc(char *outopts)
437: {
438: struct termp *p;
1.52 kristaps 439: unsigned int pagex, pagey;
440: size_t marginx, marginy, lineheight;
1.17 kristaps 441: const char *toks[2];
1.25 kristaps 442: const char *pp;
1.17 kristaps 443: char *v;
1.1 kristaps 444:
1.51 kristaps 445: p = mandoc_calloc(1, sizeof(struct termp));
446: p->enc = TERMENC_ASCII;
1.50 kristaps 447: p->ps = mandoc_calloc(1, sizeof(struct termp_ps));
1.1 kristaps 448:
1.19 kristaps 449: p->advance = ps_advance;
1.2 kristaps 450: p->begin = ps_begin;
451: p->end = ps_end;
452: p->endline = ps_endline;
1.19 kristaps 453: p->hspan = ps_hspan;
454: p->letter = ps_letter;
1.57 schwarze 455: p->setwidth = ps_setwidth;
1.11 kristaps 456: p->width = ps_width;
1.21 kristaps 457:
1.17 kristaps 458: toks[0] = "paper";
459: toks[1] = NULL;
460:
1.25 kristaps 461: pp = NULL;
1.19 kristaps 462:
1.17 kristaps 463: while (outopts && *outopts)
464: switch (getsubopt(&outopts, UNCONST(toks), &v)) {
465: case (0):
1.25 kristaps 466: pp = v;
1.17 kristaps 467: break;
468: default:
469: break;
470: }
1.16 kristaps 471:
1.25 kristaps 472: /* Default to US letter (millimetres). */
473:
1.31 kristaps 474: pagex = 216;
475: pagey = 279;
1.25 kristaps 476:
477: /*
478: * The ISO-269 paper sizes can be calculated automatically, but
479: * it would require bringing in -lm for pow() and I'd rather not
480: * do that. So just do it the easy way for now. Since this
481: * only happens once, I'm not terribly concerned.
482: */
483:
484: if (pp && strcasecmp(pp, "letter")) {
485: if (0 == strcasecmp(pp, "a3")) {
486: pagex = 297;
487: pagey = 420;
488: } else if (0 == strcasecmp(pp, "a4")) {
489: pagex = 210;
490: pagey = 297;
491: } else if (0 == strcasecmp(pp, "a5")) {
492: pagex = 148;
493: pagey = 210;
494: } else if (0 == strcasecmp(pp, "legal")) {
495: pagex = 216;
496: pagey = 356;
1.52 kristaps 497: } else if (2 != sscanf(pp, "%ux%u", &pagex, &pagey))
1.25 kristaps 498: fprintf(stderr, "%s: Unknown paper\n", pp);
1.54 schwarze 499: }
1.27 kristaps 500:
501: /*
502: * This MUST be defined before any PNT2AFM or AFM2PNT
503: * calculations occur.
504: */
505:
1.50 kristaps 506: p->ps->scale = 11;
1.27 kristaps 507:
1.25 kristaps 508: /* Remember millimetres -> AFM units. */
509:
510: pagex = PNT2AFM(p, ((double)pagex * 2.834));
511: pagey = PNT2AFM(p, ((double)pagey * 2.834));
512:
1.28 kristaps 513: /* Margins are 1/9 the page x and y. */
1.27 kristaps 514:
1.29 kristaps 515: marginx = /* LINTED */
516: (size_t)((double)pagex / 9.0);
517: marginy = /* LINTED */
518: (size_t)((double)pagey / 9.0);
1.27 kristaps 519:
1.31 kristaps 520: /* Line-height is 1.4em. */
521:
1.50 kristaps 522: lineheight = PNT2AFM(p, ((double)p->ps->scale * 1.4));
1.16 kristaps 523:
1.57 schwarze 524: p->ps->width = p->ps->lastwidth = (size_t)pagex;
1.52 kristaps 525: p->ps->height = (size_t)pagey;
1.50 kristaps 526: p->ps->header = pagey - (marginy / 2) - (lineheight / 2);
527: p->ps->top = pagey - marginy;
528: p->ps->footer = (marginy / 2) - (lineheight / 2);
529: p->ps->bottom = marginy;
530: p->ps->left = marginx;
531: p->ps->lineheight = lineheight;
1.16 kristaps 532:
1.28 kristaps 533: p->defrmargin = pagex - (marginx * 2);
1.1 kristaps 534: return(p);
1.57 schwarze 535: }
536:
537:
538: static void
1.58 ! schwarze 539: ps_setwidth(struct termp *p, int iop, size_t width)
1.57 schwarze 540: {
541: size_t lastwidth;
542:
543: lastwidth = p->ps->width;
1.58 ! schwarze 544: if (0 < iop)
! 545: p->ps->width += width;
! 546: else if (0 > iop)
! 547: p->ps->width -= width;
! 548: else
! 549: p->ps->width = width ? width : p->ps->lastwidth;
1.57 schwarze 550: p->ps->lastwidth = lastwidth;
1.1 kristaps 551: }
552:
553:
554: void
1.37 kristaps 555: pspdf_free(void *arg)
1.1 kristaps 556: {
1.4 kristaps 557: struct termp *p;
558:
559: p = (struct termp *)arg;
560:
1.50 kristaps 561: if (p->ps->psmarg)
562: free(p->ps->psmarg);
563: if (p->ps->pdfobjs)
564: free(p->ps->pdfobjs);
1.4 kristaps 565:
1.50 kristaps 566: free(p->ps);
1.4 kristaps 567: term_free(p);
568: }
569:
570:
571: static void
572: ps_printf(struct termp *p, const char *fmt, ...)
573: {
574: va_list ap;
1.37 kristaps 575: int pos, len;
1.4 kristaps 576:
577: va_start(ap, fmt);
578:
579: /*
580: * If we're running in regular mode, then pipe directly into
581: * vprintf(). If we're processing margins, then push the data
582: * into our growable margin buffer.
583: */
1.1 kristaps 584:
1.50 kristaps 585: if ( ! (PS_MARGINS & p->ps->flags)) {
1.37 kristaps 586: len = vprintf(fmt, ap);
1.4 kristaps 587: va_end(ap);
1.50 kristaps 588: p->ps->pdfbytes += /* LINTED */
1.37 kristaps 589: len < 0 ? 0 : (size_t)len;
1.4 kristaps 590: return;
591: }
592:
593: /*
594: * XXX: I assume that the in-margin print won't exceed
595: * PS_BUFSLOP (128 bytes), which is reasonable but still an
596: * assumption that will cause pukeage if it's not the case.
597: */
598:
1.40 joerg 599: ps_growbuf(p, PS_BUFSLOP);
1.4 kristaps 600:
1.50 kristaps 601: pos = (int)p->ps->psmargcur;
1.54 schwarze 602: vsnprintf(&p->ps->psmarg[pos], PS_BUFSLOP, fmt, ap);
1.5 kristaps 603:
604: va_end(ap);
1.37 kristaps 605:
1.50 kristaps 606: p->ps->psmargcur = strlen(p->ps->psmarg);
1.4 kristaps 607: }
608:
609:
610: static void
611: ps_putchar(struct termp *p, char c)
612: {
613: int pos;
614:
615: /* See ps_printf(). */
616:
1.50 kristaps 617: if ( ! (PS_MARGINS & p->ps->flags)) {
1.44 kristaps 618: /* LINTED */
1.4 kristaps 619: putchar(c);
1.50 kristaps 620: p->ps->pdfbytes++;
1.4 kristaps 621: return;
622: }
623:
1.40 joerg 624: ps_growbuf(p, 2);
1.4 kristaps 625:
1.50 kristaps 626: pos = (int)p->ps->psmargcur++;
627: p->ps->psmarg[pos++] = c;
628: p->ps->psmarg[pos] = '\0';
1.2 kristaps 629: }
630:
631:
1.37 kristaps 632: static void
1.39 kristaps 633: pdf_obj(struct termp *p, size_t obj)
634: {
635:
636: assert(obj > 0);
637:
1.50 kristaps 638: if ((obj - 1) >= p->ps->pdfobjsz) {
639: p->ps->pdfobjsz = obj + 128;
640: p->ps->pdfobjs = realloc
641: (p->ps->pdfobjs,
642: p->ps->pdfobjsz * sizeof(size_t));
643: if (NULL == p->ps->pdfobjs) {
1.39 kristaps 644: perror(NULL);
1.44 kristaps 645: exit((int)MANDOCLEVEL_SYSERR);
1.39 kristaps 646: }
647: }
648:
1.50 kristaps 649: p->ps->pdfobjs[(int)obj - 1] = p->ps->pdfbytes;
1.39 kristaps 650: ps_printf(p, "%zu 0 obj\n", obj);
651: }
652:
653:
654: static void
1.37 kristaps 655: ps_closepage(struct termp *p)
656: {
657: int i;
1.38 kristaps 658: size_t len, base;
659:
660: /*
661: * Close out a page that we've already flushed to output. In
662: * PostScript, we simply note that the page must be showed. In
663: * PDF, we must now create the Length, Resource, and Page node
664: * for the page contents.
665: */
1.37 kristaps 666:
1.50 kristaps 667: assert(p->ps->psmarg && p->ps->psmarg[0]);
668: ps_printf(p, "%s", p->ps->psmarg);
1.37 kristaps 669:
1.38 kristaps 670: if (TERMTYPE_PS != p->type) {
1.37 kristaps 671: ps_printf(p, "ET\n");
1.38 kristaps 672:
1.50 kristaps 673: len = p->ps->pdfbytes - p->ps->pdflastpg;
674: base = p->ps->pages * 4 + p->ps->pdfbody;
1.38 kristaps 675:
676: ps_printf(p, "endstream\nendobj\n");
677:
678: /* Length of content. */
1.39 kristaps 679: pdf_obj(p, base + 1);
1.38 kristaps 680: ps_printf(p, "%zu\nendobj\n", len);
681:
682: /* Resource for content. */
1.39 kristaps 683: pdf_obj(p, base + 2);
1.38 kristaps 684: ps_printf(p, "<<\n/ProcSet [/PDF /Text]\n");
1.37 kristaps 685: ps_printf(p, "/Font <<\n");
1.39 kristaps 686: for (i = 0; i < (int)TERMFONT__MAX; i++)
1.37 kristaps 687: ps_printf(p, "/F%d %d 0 R\n", i, 3 + i);
1.38 kristaps 688: ps_printf(p, ">>\n>>\n");
689:
690: /* Page node. */
1.39 kristaps 691: pdf_obj(p, base + 3);
692: ps_printf(p, "<<\n");
1.37 kristaps 693: ps_printf(p, "/Type /Page\n");
694: ps_printf(p, "/Parent 2 0 R\n");
1.38 kristaps 695: ps_printf(p, "/Resources %zu 0 R\n", base + 2);
696: ps_printf(p, "/Contents %zu 0 R\n", base);
697: ps_printf(p, ">>\nendobj\n");
698: } else
699: ps_printf(p, "showpage\n");
1.37 kristaps 700:
1.50 kristaps 701: p->ps->pages++;
702: p->ps->psrow = p->ps->top;
703: assert( ! (PS_NEWPAGE & p->ps->flags));
704: p->ps->flags |= PS_NEWPAGE;
1.37 kristaps 705: }
706:
707:
1.3 kristaps 708: /* ARGSUSED */
1.2 kristaps 709: static void
710: ps_end(struct termp *p)
711: {
1.38 kristaps 712: size_t i, xref, base;
1.2 kristaps 713:
1.4 kristaps 714: /*
715: * At the end of the file, do one last showpage. This is the
716: * same behaviour as groff(1) and works for multiple pages as
717: * well as just one.
718: */
719:
1.50 kristaps 720: if ( ! (PS_NEWPAGE & p->ps->flags)) {
721: assert(0 == p->ps->flags);
722: assert('\0' == p->ps->last);
1.37 kristaps 723: ps_closepage(p);
1.30 kristaps 724: }
1.16 kristaps 725:
1.37 kristaps 726: if (TERMTYPE_PS == p->type) {
727: ps_printf(p, "%%%%Trailer\n");
1.50 kristaps 728: ps_printf(p, "%%%%Pages: %zu\n", p->ps->pages);
1.37 kristaps 729: ps_printf(p, "%%%%EOF\n");
730: return;
731: }
732:
1.39 kristaps 733: pdf_obj(p, 2);
734: ps_printf(p, "<<\n/Type /Pages\n");
1.37 kristaps 735: ps_printf(p, "/MediaBox [0 0 %zu %zu]\n",
1.50 kristaps 736: (size_t)AFM2PNT(p, p->ps->width),
737: (size_t)AFM2PNT(p, p->ps->height));
1.37 kristaps 738:
1.50 kristaps 739: ps_printf(p, "/Count %zu\n", p->ps->pages);
1.37 kristaps 740: ps_printf(p, "/Kids [");
741:
1.50 kristaps 742: for (i = 0; i < p->ps->pages; i++)
1.38 kristaps 743: ps_printf(p, " %zu 0 R", i * 4 +
1.50 kristaps 744: p->ps->pdfbody + 3);
1.38 kristaps 745:
1.50 kristaps 746: base = (p->ps->pages - 1) * 4 +
747: p->ps->pdfbody + 4;
1.38 kristaps 748:
749: ps_printf(p, "]\n>>\nendobj\n");
1.39 kristaps 750: pdf_obj(p, base);
1.37 kristaps 751: ps_printf(p, "<<\n");
752: ps_printf(p, "/Type /Catalog\n");
753: ps_printf(p, "/Pages 2 0 R\n");
754: ps_printf(p, ">>\n");
1.50 kristaps 755: xref = p->ps->pdfbytes;
1.37 kristaps 756: ps_printf(p, "xref\n");
1.38 kristaps 757: ps_printf(p, "0 %zu\n", base + 1);
1.39 kristaps 758: ps_printf(p, "0000000000 65535 f \n");
759:
760: for (i = 0; i < base; i++)
761: ps_printf(p, "%.10zu 00000 n \n",
1.50 kristaps 762: p->ps->pdfobjs[(int)i]);
1.39 kristaps 763:
1.37 kristaps 764: ps_printf(p, "trailer\n");
765: ps_printf(p, "<<\n");
1.38 kristaps 766: ps_printf(p, "/Size %zu\n", base + 1);
767: ps_printf(p, "/Root %zu 0 R\n", base);
1.37 kristaps 768: ps_printf(p, "/Info 1 0 R\n");
769: ps_printf(p, ">>\n");
770: ps_printf(p, "startxref\n");
771: ps_printf(p, "%zu\n", xref);
772: ps_printf(p, "%%%%EOF\n");
1.2 kristaps 773: }
774:
775:
776: static void
777: ps_begin(struct termp *p)
778: {
1.13 kristaps 779: time_t t;
1.16 kristaps 780: int i;
1.2 kristaps 781:
1.9 kristaps 782: /*
783: * Print margins into margin buffer. Nothing gets output to the
784: * screen yet, so we don't need to initialise the primary state.
1.2 kristaps 785: */
786:
1.50 kristaps 787: if (p->ps->psmarg) {
788: assert(p->ps->psmargsz);
789: p->ps->psmarg[0] = '\0';
1.4 kristaps 790: }
791:
1.50 kristaps 792: /*p->ps->pdfbytes = 0;*/
793: p->ps->psmargcur = 0;
794: p->ps->flags = PS_MARGINS;
795: p->ps->pscol = p->ps->left;
796: p->ps->psrow = p->ps->header;
1.4 kristaps 797:
1.9 kristaps 798: ps_setfont(p, TERMFONT_NONE);
1.4 kristaps 799:
800: (*p->headf)(p, p->argf);
801: (*p->endline)(p);
802:
1.50 kristaps 803: p->ps->pscol = p->ps->left;
804: p->ps->psrow = p->ps->footer;
1.4 kristaps 805:
806: (*p->footf)(p, p->argf);
807: (*p->endline)(p);
808:
1.50 kristaps 809: p->ps->flags &= ~PS_MARGINS;
1.9 kristaps 810:
1.50 kristaps 811: assert(0 == p->ps->flags);
812: assert(p->ps->psmarg);
813: assert('\0' != p->ps->psmarg[0]);
1.9 kristaps 814:
815: /*
816: * Print header and initialise page state. Following this,
817: * stuff gets printed to the screen, so make sure we're sane.
818: */
1.4 kristaps 819:
1.13 kristaps 820: t = time(NULL);
821:
1.37 kristaps 822: if (TERMTYPE_PS == p->type) {
823: ps_printf(p, "%%!PS-Adobe-3.0\n");
824: ps_printf(p, "%%%%CreationDate: %s", ctime(&t));
825: ps_printf(p, "%%%%DocumentData: Clean7Bit\n");
826: ps_printf(p, "%%%%Orientation: Portrait\n");
827: ps_printf(p, "%%%%Pages: (atend)\n");
828: ps_printf(p, "%%%%PageOrder: Ascend\n");
829: ps_printf(p, "%%%%DocumentMedia: "
830: "Default %zu %zu 0 () ()\n",
1.50 kristaps 831: (size_t)AFM2PNT(p, p->ps->width),
832: (size_t)AFM2PNT(p, p->ps->height));
1.37 kristaps 833: ps_printf(p, "%%%%DocumentNeededResources: font");
834:
835: for (i = 0; i < (int)TERMFONT__MAX; i++)
836: ps_printf(p, " %s", fonts[i].name);
837:
838: ps_printf(p, "\n%%%%EndComments\n");
839: } else {
840: ps_printf(p, "%%PDF-1.1\n");
1.39 kristaps 841: pdf_obj(p, 1);
1.37 kristaps 842: ps_printf(p, "<<\n");
843: ps_printf(p, ">>\n");
844: ps_printf(p, "endobj\n");
845:
846: for (i = 0; i < (int)TERMFONT__MAX; i++) {
1.39 kristaps 847: pdf_obj(p, (size_t)i + 3);
1.37 kristaps 848: ps_printf(p, "<<\n");
849: ps_printf(p, "/Type /Font\n");
850: ps_printf(p, "/Subtype /Type1\n");
1.55 joerg 851: ps_printf(p, "/Name /F%d\n", i);
1.37 kristaps 852: ps_printf(p, "/BaseFont /%s\n", fonts[i].name);
853: ps_printf(p, ">>\n");
854: }
855: }
1.16 kristaps 856:
1.50 kristaps 857: p->ps->pdfbody = (size_t)TERMFONT__MAX + 3;
858: p->ps->pscol = p->ps->left;
859: p->ps->psrow = p->ps->top;
860: p->ps->flags |= PS_NEWPAGE;
1.33 kristaps 861: ps_setfont(p, TERMFONT_NONE);
1.2 kristaps 862: }
863:
864:
865: static void
1.13 kristaps 866: ps_pletter(struct termp *p, int c)
1.2 kristaps 867: {
1.14 kristaps 868: int f;
1.32 kristaps 869:
1.9 kristaps 870: /*
1.32 kristaps 871: * If we haven't opened a page context, then output that we're
872: * in a new page and make sure the font is correctly set.
1.9 kristaps 873: */
874:
1.50 kristaps 875: if (PS_NEWPAGE & p->ps->flags) {
1.37 kristaps 876: if (TERMTYPE_PS == p->type) {
877: ps_printf(p, "%%%%Page: %zu %zu\n",
1.50 kristaps 878: p->ps->pages + 1,
879: p->ps->pages + 1);
1.37 kristaps 880: ps_printf(p, "/%s %zu selectfont\n",
1.50 kristaps 881: fonts[(int)p->ps->lastf].name,
882: p->ps->scale);
1.37 kristaps 883: } else {
1.50 kristaps 884: pdf_obj(p, p->ps->pdfbody +
885: p->ps->pages * 4);
1.37 kristaps 886: ps_printf(p, "<<\n");
887: ps_printf(p, "/Length %zu 0 R\n",
1.50 kristaps 888: p->ps->pdfbody + 1 +
889: p->ps->pages * 4);
1.37 kristaps 890: ps_printf(p, ">>\nstream\n");
891: }
1.50 kristaps 892: p->ps->pdflastpg = p->ps->pdfbytes;
893: p->ps->flags &= ~PS_NEWPAGE;
1.32 kristaps 894: }
895:
896: /*
897: * If we're not in a PostScript "word" context, then open one
898: * now at the current cursor.
899: */
1.30 kristaps 900:
1.50 kristaps 901: if ( ! (PS_INLINE & p->ps->flags)) {
1.37 kristaps 902: if (TERMTYPE_PS != p->type) {
903: ps_printf(p, "BT\n/F%d %zu Tf\n",
1.50 kristaps 904: (int)p->ps->lastf,
905: p->ps->scale);
1.37 kristaps 906: ps_printf(p, "%.3f %.3f Td\n(",
1.50 kristaps 907: AFM2PNT(p, p->ps->pscol),
908: AFM2PNT(p, p->ps->psrow));
1.37 kristaps 909: } else
910: ps_printf(p, "%.3f %.3f moveto\n(",
1.50 kristaps 911: AFM2PNT(p, p->ps->pscol),
912: AFM2PNT(p, p->ps->psrow));
913: p->ps->flags |= PS_INLINE;
1.2 kristaps 914: }
915:
1.50 kristaps 916: assert( ! (PS_NEWPAGE & p->ps->flags));
1.29 kristaps 917:
1.2 kristaps 918: /*
919: * We need to escape these characters as per the PostScript
920: * specification. We would also escape non-graphable characters
921: * (like tabs), but none of them would get to this point and
922: * it's superfluous to abort() on them.
923: */
924:
925: switch (c) {
926: case ('('):
927: /* FALLTHROUGH */
928: case (')'):
929: /* FALLTHROUGH */
930: case ('\\'):
1.4 kristaps 931: ps_putchar(p, '\\');
1.2 kristaps 932: break;
933: default:
934: break;
935: }
936:
937: /* Write the character and adjust where we are on the page. */
1.9 kristaps 938:
1.50 kristaps 939: f = (int)p->ps->lastf;
1.13 kristaps 940:
1.45 schwarze 941: if (c <= 32 || (c - 32 >= MAXCHAR)) {
1.13 kristaps 942: ps_putchar(p, ' ');
1.50 kristaps 943: p->ps->pscol += (size_t)fonts[f].gly[0].wx;
1.13 kristaps 944: return;
945: }
946:
1.25 kristaps 947: ps_putchar(p, (char)c);
1.14 kristaps 948: c -= 32;
1.50 kristaps 949: p->ps->pscol += (size_t)fonts[f].gly[c].wx;
1.2 kristaps 950: }
951:
952:
953: static void
1.9 kristaps 954: ps_pclose(struct termp *p)
955: {
956:
957: /*
958: * Spit out that we're exiting a word context (this is a
959: * "partial close" because we don't check the last-char buffer
960: * or anything).
961: */
962:
1.50 kristaps 963: if ( ! (PS_INLINE & p->ps->flags))
1.9 kristaps 964: return;
965:
1.37 kristaps 966: if (TERMTYPE_PS != p->type) {
967: ps_printf(p, ") Tj\nET\n");
968: } else
969: ps_printf(p, ") show\n");
970:
1.50 kristaps 971: p->ps->flags &= ~PS_INLINE;
1.9 kristaps 972: }
973:
974:
975: static void
976: ps_fclose(struct termp *p)
977: {
978:
979: /*
980: * Strong closure: if we have a last-char, spit it out after
981: * checking that we're in the right font mode. This will of
982: * course open a new scope, if applicable.
983: *
984: * Following this, close out any scope that's open.
985: */
986:
1.50 kristaps 987: if ('\0' != p->ps->last) {
988: if (p->ps->lastf != TERMFONT_NONE) {
1.9 kristaps 989: ps_pclose(p);
990: ps_setfont(p, TERMFONT_NONE);
991: }
1.50 kristaps 992: ps_pletter(p, p->ps->last);
993: p->ps->last = '\0';
1.9 kristaps 994: }
995:
1.50 kristaps 996: if ( ! (PS_INLINE & p->ps->flags))
1.9 kristaps 997: return;
998:
999: ps_pclose(p);
1000: }
1001:
1002:
1003: static void
1.49 kristaps 1004: ps_letter(struct termp *p, int arg)
1.8 kristaps 1005: {
1.49 kristaps 1006: char cc, c;
1007:
1008: /* LINTED */
1009: c = arg >= 128 || arg <= 0 ? '?' : arg;
1.9 kristaps 1010:
1011: /*
1012: * State machine dictates whether to buffer the last character
1013: * or not. Basically, encoded words are detected by checking if
1014: * we're an "8" and switching on the buffer. Then we put "8" in
1015: * our buffer, and on the next charater, flush both character
1016: * and buffer. Thus, "regular" words are detected by having a
1017: * regular character and a regular buffer character.
1018: */
1019:
1.50 kristaps 1020: if ('\0' == p->ps->last) {
1.8 kristaps 1021: assert(8 != c);
1.50 kristaps 1022: p->ps->last = c;
1.8 kristaps 1023: return;
1.50 kristaps 1024: } else if (8 == p->ps->last) {
1.8 kristaps 1025: assert(8 != c);
1.50 kristaps 1026: p->ps->last = '\0';
1.8 kristaps 1027: } else if (8 == c) {
1.50 kristaps 1028: assert(8 != p->ps->last);
1029: if ('_' == p->ps->last) {
1030: if (p->ps->lastf != TERMFONT_UNDER) {
1.9 kristaps 1031: ps_pclose(p);
1032: ps_setfont(p, TERMFONT_UNDER);
1033: }
1.50 kristaps 1034: } else if (p->ps->lastf != TERMFONT_BOLD) {
1.9 kristaps 1035: ps_pclose(p);
1036: ps_setfont(p, TERMFONT_BOLD);
1037: }
1.50 kristaps 1038: p->ps->last = c;
1.8 kristaps 1039: return;
1040: } else {
1.50 kristaps 1041: if (p->ps->lastf != TERMFONT_NONE) {
1.9 kristaps 1042: ps_pclose(p);
1043: ps_setfont(p, TERMFONT_NONE);
1044: }
1.50 kristaps 1045: cc = p->ps->last;
1046: p->ps->last = c;
1.8 kristaps 1047: c = cc;
1048: }
1049:
1.9 kristaps 1050: ps_pletter(p, c);
1.8 kristaps 1051: }
1052:
1053:
1054: static void
1.2 kristaps 1055: ps_advance(struct termp *p, size_t len)
1056: {
1057:
1.9 kristaps 1058: /*
1059: * Advance some spaces. This can probably be made smarter,
1060: * i.e., to have multiple space-separated words in the same
1061: * scope, but this is easier: just close out the current scope
1062: * and readjust our column settings.
1063: */
1.8 kristaps 1064:
1.9 kristaps 1065: ps_fclose(p);
1.50 kristaps 1066: p->ps->pscol += len;
1.2 kristaps 1067: }
1068:
1069:
1070: static void
1071: ps_endline(struct termp *p)
1072: {
1.8 kristaps 1073:
1.9 kristaps 1074: /* Close out any scopes we have open: we're at eoln. */
1075:
1076: ps_fclose(p);
1.2 kristaps 1077:
1.9 kristaps 1078: /*
1079: * If we're in the margin, don't try to recalculate our current
1080: * row. XXX: if the column tries to be fancy with multiple
1081: * lines, we'll do nasty stuff.
1082: */
1.2 kristaps 1083:
1.50 kristaps 1084: if (PS_MARGINS & p->ps->flags)
1.29 kristaps 1085: return;
1086:
1087: /* Left-justify. */
1088:
1.50 kristaps 1089: p->ps->pscol = p->ps->left;
1.29 kristaps 1090:
1091: /* If we haven't printed anything, return. */
1092:
1.50 kristaps 1093: if (PS_NEWPAGE & p->ps->flags)
1.2 kristaps 1094: return;
1095:
1.9 kristaps 1096: /*
1097: * Put us down a line. If we're at the page bottom, spit out a
1098: * showpage and restart our row.
1099: */
1100:
1.50 kristaps 1101: if (p->ps->psrow >= p->ps->lineheight +
1102: p->ps->bottom) {
1103: p->ps->psrow -= p->ps->lineheight;
1.2 kristaps 1104: return;
1105: }
1106:
1.37 kristaps 1107: ps_closepage(p);
1.1 kristaps 1108: }
1.9 kristaps 1109:
1110:
1111: static void
1112: ps_setfont(struct termp *p, enum termfont f)
1113: {
1114:
1.16 kristaps 1115: assert(f < TERMFONT__MAX);
1.50 kristaps 1116: p->ps->lastf = f;
1.32 kristaps 1117:
1118: /*
1119: * If we're still at the top of the page, let the font-setting
1120: * be delayed until we actually have stuff to print.
1121: */
1122:
1.50 kristaps 1123: if (PS_NEWPAGE & p->ps->flags)
1.32 kristaps 1124: return;
1125:
1.37 kristaps 1126: if (TERMTYPE_PS == p->type)
1127: ps_printf(p, "/%s %zu selectfont\n",
1128: fonts[(int)f].name,
1.50 kristaps 1129: p->ps->scale);
1.37 kristaps 1130: else
1131: ps_printf(p, "/F%d %zu Tf\n",
1132: (int)f,
1.50 kristaps 1133: p->ps->scale);
1.9 kristaps 1134: }
1135:
1.11 kristaps 1136:
1.12 kristaps 1137: /* ARGSUSED */
1.11 kristaps 1138: static size_t
1.49 kristaps 1139: ps_width(const struct termp *p, int c)
1.11 kristaps 1140: {
1141:
1.14 kristaps 1142: if (c <= 32 || c - 32 >= MAXCHAR)
1.36 kristaps 1143: return((size_t)fonts[(int)TERMFONT_NONE].gly[0].wx);
1.14 kristaps 1144:
1145: c -= 32;
1.49 kristaps 1146: return((size_t)fonts[(int)TERMFONT_NONE].gly[c].wx);
1.11 kristaps 1147: }
1.19 kristaps 1148:
1149:
1.20 kristaps 1150: static double
1.19 kristaps 1151: ps_hspan(const struct termp *p, const struct roffsu *su)
1152: {
1153: double r;
1154:
1155: /*
1156: * All of these measurements are derived by converting from the
1.21 kristaps 1157: * native measurement to AFM units.
1.19 kristaps 1158: */
1159:
1160: switch (su->unit) {
1161: case (SCALE_CM):
1.21 kristaps 1162: r = PNT2AFM(p, su->scale * 28.34);
1.19 kristaps 1163: break;
1164: case (SCALE_IN):
1.21 kristaps 1165: r = PNT2AFM(p, su->scale * 72);
1.19 kristaps 1166: break;
1167: case (SCALE_PC):
1.21 kristaps 1168: r = PNT2AFM(p, su->scale * 12);
1.19 kristaps 1169: break;
1170: case (SCALE_PT):
1.21 kristaps 1171: r = PNT2AFM(p, su->scale * 100);
1.19 kristaps 1172: break;
1173: case (SCALE_EM):
1.36 kristaps 1174: r = su->scale *
1.19 kristaps 1175: fonts[(int)TERMFONT_NONE].gly[109 - 32].wx;
1176: break;
1177: case (SCALE_MM):
1.21 kristaps 1178: r = PNT2AFM(p, su->scale * 2.834);
1.19 kristaps 1179: break;
1180: case (SCALE_EN):
1.36 kristaps 1181: r = su->scale *
1.19 kristaps 1182: fonts[(int)TERMFONT_NONE].gly[110 - 32].wx;
1183: break;
1184: case (SCALE_VS):
1.50 kristaps 1185: r = su->scale * p->ps->lineheight;
1.19 kristaps 1186: break;
1187: default:
1188: r = su->scale;
1189: break;
1190: }
1191:
1.20 kristaps 1192: return(r);
1.50 kristaps 1193: }
1194:
1195: static void
1196: ps_growbuf(struct termp *p, size_t sz)
1197: {
1198: if (p->ps->psmargcur + sz <= p->ps->psmargsz)
1199: return;
1200:
1201: if (sz < PS_BUFSLOP)
1202: sz = PS_BUFSLOP;
1203:
1204: p->ps->psmargsz += sz;
1205:
1206: p->ps->psmarg = mandoc_realloc
1207: (p->ps->psmarg, p->ps->psmargsz);
1.19 kristaps 1208: }
1209:
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