Annotation of mandoc/term_ps.c, Revision 1.52
1.52 ! kristaps 1: /* $Id: term_ps.c,v 1.51 2011/05/17 14:38:34 kristaps Exp $ */
1.1 kristaps 2: /*
1.34 schwarze 3: * Copyright (c) 2010 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);
100: static void ps_printf(struct termp *, const char *, ...);
101: static void ps_putchar(struct termp *, char);
102: static void ps_setfont(struct termp *, enum termfont);
103: static struct termp *pspdf_alloc(char *);
104: static void pdf_obj(struct termp *, size_t);
105:
1.13 kristaps 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:
1.16 kristaps 112: static const struct font fonts[TERMFONT__MAX] = {
1.24 kristaps 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},
209: } },
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 },
1.22 kristaps 279: { 556 },
1.24 kristaps 280: { 444 },
281: { 333 },
1.22 kristaps 282: { 500 },
1.24 kristaps 283: { 556 },
1.22 kristaps 284: { 278 },
1.24 kristaps 285: { 333 },
286: { 556 },
1.22 kristaps 287: { 278 },
1.24 kristaps 288: { 833 },
1.22 kristaps 289: { 556 },
1.24 kristaps 290: { 500 },
1.22 kristaps 291: { 556 },
292: { 556 },
293: { 444 },
1.24 kristaps 294: { 389 },
295: { 333 },
1.22 kristaps 296: { 556 },
297: { 500 },
1.24 kristaps 298: { 722 },
299: { 500 },
1.22 kristaps 300: { 500 },
1.24 kristaps 301: { 444 },
302: { 394 },
303: { 220 },
304: { 394 },
305: { 520 },
1.13 kristaps 306: } },
1.24 kristaps 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 },
1.22 kristaps 376: { 500 },
1.24 kristaps 377: { 444 },
378: { 278 },
1.22 kristaps 379: { 500 },
380: { 500 },
381: { 278 },
1.24 kristaps 382: { 278 },
383: { 444 },
384: { 278 },
385: { 722 },
386: { 500 },
387: { 500 },
388: { 500 },
1.22 kristaps 389: { 500 },
1.24 kristaps 390: { 389 },
391: { 389 },
1.22 kristaps 392: { 278 },
393: { 500 },
1.24 kristaps 394: { 444 },
395: { 667 },
396: { 444 },
397: { 444 },
398: { 389 },
399: { 400 },
1.22 kristaps 400: { 275 },
1.24 kristaps 401: { 400 },
402: { 541 },
1.13 kristaps 403: } },
404: };
405:
1.37 kristaps 406: void *
407: pdf_alloc(char *outopts)
408: {
409: struct termp *p;
410:
1.38 kristaps 411: if (NULL != (p = pspdf_alloc(outopts)))
412: p->type = TERMTYPE_PDF;
1.37 kristaps 413:
414: return(p);
415: }
1.2 kristaps 416:
1.1 kristaps 417: void *
1.17 kristaps 418: ps_alloc(char *outopts)
1.1 kristaps 419: {
420: struct termp *p;
1.37 kristaps 421:
1.38 kristaps 422: if (NULL != (p = pspdf_alloc(outopts)))
423: p->type = TERMTYPE_PS;
1.37 kristaps 424:
425: return(p);
426: }
427:
428: static struct termp *
429: pspdf_alloc(char *outopts)
430: {
431: struct termp *p;
1.52 ! kristaps 432: unsigned int pagex, pagey;
! 433: size_t marginx, marginy, lineheight;
1.17 kristaps 434: const char *toks[2];
1.25 kristaps 435: const char *pp;
1.17 kristaps 436: char *v;
1.1 kristaps 437:
1.51 kristaps 438: p = mandoc_calloc(1, sizeof(struct termp));
439: p->enc = TERMENC_ASCII;
1.50 kristaps 440: p->ps = mandoc_calloc(1, sizeof(struct termp_ps));
1.1 kristaps 441:
1.19 kristaps 442: p->advance = ps_advance;
1.2 kristaps 443: p->begin = ps_begin;
444: p->end = ps_end;
445: p->endline = ps_endline;
1.19 kristaps 446: p->hspan = ps_hspan;
447: p->letter = ps_letter;
1.11 kristaps 448: p->width = ps_width;
1.21 kristaps 449:
1.17 kristaps 450: toks[0] = "paper";
451: toks[1] = NULL;
452:
1.25 kristaps 453: pp = NULL;
1.19 kristaps 454:
1.17 kristaps 455: while (outopts && *outopts)
456: switch (getsubopt(&outopts, UNCONST(toks), &v)) {
457: case (0):
1.25 kristaps 458: pp = v;
1.17 kristaps 459: break;
460: default:
461: break;
462: }
1.16 kristaps 463:
1.25 kristaps 464: /* Default to US letter (millimetres). */
465:
1.31 kristaps 466: pagex = 216;
467: pagey = 279;
1.25 kristaps 468:
469: /*
470: * The ISO-269 paper sizes can be calculated automatically, but
471: * it would require bringing in -lm for pow() and I'd rather not
472: * do that. So just do it the easy way for now. Since this
473: * only happens once, I'm not terribly concerned.
474: */
475:
476: if (pp && strcasecmp(pp, "letter")) {
477: if (0 == strcasecmp(pp, "a3")) {
478: pagex = 297;
479: pagey = 420;
480: } else if (0 == strcasecmp(pp, "a4")) {
481: pagex = 210;
482: pagey = 297;
483: } else if (0 == strcasecmp(pp, "a5")) {
484: pagex = 148;
485: pagey = 210;
486: } else if (0 == strcasecmp(pp, "legal")) {
487: pagex = 216;
488: pagey = 356;
1.52 ! kristaps 489: } else if (2 != sscanf(pp, "%ux%u", &pagex, &pagey))
1.25 kristaps 490: fprintf(stderr, "%s: Unknown paper\n", pp);
1.27 kristaps 491: } else if (NULL == pp)
492: pp = "letter";
493:
494: /*
495: * This MUST be defined before any PNT2AFM or AFM2PNT
496: * calculations occur.
497: */
498:
1.50 kristaps 499: p->ps->scale = 11;
1.27 kristaps 500:
1.25 kristaps 501: /* Remember millimetres -> AFM units. */
502:
503: pagex = PNT2AFM(p, ((double)pagex * 2.834));
504: pagey = PNT2AFM(p, ((double)pagey * 2.834));
505:
1.28 kristaps 506: /* Margins are 1/9 the page x and y. */
1.27 kristaps 507:
1.29 kristaps 508: marginx = /* LINTED */
509: (size_t)((double)pagex / 9.0);
510: marginy = /* LINTED */
511: (size_t)((double)pagey / 9.0);
1.27 kristaps 512:
1.31 kristaps 513: /* Line-height is 1.4em. */
514:
1.50 kristaps 515: lineheight = PNT2AFM(p, ((double)p->ps->scale * 1.4));
1.16 kristaps 516:
1.52 ! kristaps 517: p->ps->width = (size_t)pagex;
! 518: p->ps->height = (size_t)pagey;
1.50 kristaps 519: p->ps->header = pagey - (marginy / 2) - (lineheight / 2);
520: p->ps->top = pagey - marginy;
521: p->ps->footer = (marginy / 2) - (lineheight / 2);
522: p->ps->bottom = marginy;
523: p->ps->left = marginx;
524: p->ps->lineheight = lineheight;
1.16 kristaps 525:
1.28 kristaps 526: p->defrmargin = pagex - (marginx * 2);
1.1 kristaps 527: return(p);
528: }
529:
530:
531: void
1.37 kristaps 532: pspdf_free(void *arg)
1.1 kristaps 533: {
1.4 kristaps 534: struct termp *p;
535:
536: p = (struct termp *)arg;
537:
1.50 kristaps 538: if (p->ps->psmarg)
539: free(p->ps->psmarg);
540: if (p->ps->pdfobjs)
541: free(p->ps->pdfobjs);
1.4 kristaps 542:
1.50 kristaps 543: free(p->ps);
1.4 kristaps 544: term_free(p);
545: }
546:
547:
548: static void
549: ps_printf(struct termp *p, const char *fmt, ...)
550: {
551: va_list ap;
1.37 kristaps 552: int pos, len;
1.4 kristaps 553:
554: va_start(ap, fmt);
555:
556: /*
557: * If we're running in regular mode, then pipe directly into
558: * vprintf(). If we're processing margins, then push the data
559: * into our growable margin buffer.
560: */
1.1 kristaps 561:
1.50 kristaps 562: if ( ! (PS_MARGINS & p->ps->flags)) {
1.37 kristaps 563: len = vprintf(fmt, ap);
1.4 kristaps 564: va_end(ap);
1.50 kristaps 565: p->ps->pdfbytes += /* LINTED */
1.37 kristaps 566: len < 0 ? 0 : (size_t)len;
1.4 kristaps 567: return;
568: }
569:
570: /*
571: * XXX: I assume that the in-margin print won't exceed
572: * PS_BUFSLOP (128 bytes), which is reasonable but still an
573: * assumption that will cause pukeage if it's not the case.
574: */
575:
1.40 joerg 576: ps_growbuf(p, PS_BUFSLOP);
1.4 kristaps 577:
1.50 kristaps 578: pos = (int)p->ps->psmargcur;
579: len = vsnprintf(&p->ps->psmarg[pos], PS_BUFSLOP, fmt, ap);
1.5 kristaps 580:
581: va_end(ap);
1.37 kristaps 582:
1.50 kristaps 583: p->ps->psmargcur = strlen(p->ps->psmarg);
1.4 kristaps 584: }
585:
586:
587: static void
588: ps_putchar(struct termp *p, char c)
589: {
590: int pos;
591:
592: /* See ps_printf(). */
593:
1.50 kristaps 594: if ( ! (PS_MARGINS & p->ps->flags)) {
1.44 kristaps 595: /* LINTED */
1.4 kristaps 596: putchar(c);
1.50 kristaps 597: p->ps->pdfbytes++;
1.4 kristaps 598: return;
599: }
600:
1.40 joerg 601: ps_growbuf(p, 2);
1.4 kristaps 602:
1.50 kristaps 603: pos = (int)p->ps->psmargcur++;
604: p->ps->psmarg[pos++] = c;
605: p->ps->psmarg[pos] = '\0';
1.2 kristaps 606: }
607:
608:
1.37 kristaps 609: static void
1.39 kristaps 610: pdf_obj(struct termp *p, size_t obj)
611: {
612:
613: assert(obj > 0);
614:
1.50 kristaps 615: if ((obj - 1) >= p->ps->pdfobjsz) {
616: p->ps->pdfobjsz = obj + 128;
617: p->ps->pdfobjs = realloc
618: (p->ps->pdfobjs,
619: p->ps->pdfobjsz * sizeof(size_t));
620: if (NULL == p->ps->pdfobjs) {
1.39 kristaps 621: perror(NULL);
1.44 kristaps 622: exit((int)MANDOCLEVEL_SYSERR);
1.39 kristaps 623: }
624: }
625:
1.50 kristaps 626: p->ps->pdfobjs[(int)obj - 1] = p->ps->pdfbytes;
1.39 kristaps 627: ps_printf(p, "%zu 0 obj\n", obj);
628: }
629:
630:
631: static void
1.37 kristaps 632: ps_closepage(struct termp *p)
633: {
634: int i;
1.38 kristaps 635: size_t len, base;
636:
637: /*
638: * Close out a page that we've already flushed to output. In
639: * PostScript, we simply note that the page must be showed. In
640: * PDF, we must now create the Length, Resource, and Page node
641: * for the page contents.
642: */
1.37 kristaps 643:
1.50 kristaps 644: assert(p->ps->psmarg && p->ps->psmarg[0]);
645: ps_printf(p, "%s", p->ps->psmarg);
1.37 kristaps 646:
1.38 kristaps 647: if (TERMTYPE_PS != p->type) {
1.37 kristaps 648: ps_printf(p, "ET\n");
1.38 kristaps 649:
1.50 kristaps 650: len = p->ps->pdfbytes - p->ps->pdflastpg;
651: base = p->ps->pages * 4 + p->ps->pdfbody;
1.38 kristaps 652:
653: ps_printf(p, "endstream\nendobj\n");
654:
655: /* Length of content. */
1.39 kristaps 656: pdf_obj(p, base + 1);
1.38 kristaps 657: ps_printf(p, "%zu\nendobj\n", len);
658:
659: /* Resource for content. */
1.39 kristaps 660: pdf_obj(p, base + 2);
1.38 kristaps 661: ps_printf(p, "<<\n/ProcSet [/PDF /Text]\n");
1.37 kristaps 662: ps_printf(p, "/Font <<\n");
1.39 kristaps 663: for (i = 0; i < (int)TERMFONT__MAX; i++)
1.37 kristaps 664: ps_printf(p, "/F%d %d 0 R\n", i, 3 + i);
1.38 kristaps 665: ps_printf(p, ">>\n>>\n");
666:
667: /* Page node. */
1.39 kristaps 668: pdf_obj(p, base + 3);
669: ps_printf(p, "<<\n");
1.37 kristaps 670: ps_printf(p, "/Type /Page\n");
671: ps_printf(p, "/Parent 2 0 R\n");
1.38 kristaps 672: ps_printf(p, "/Resources %zu 0 R\n", base + 2);
673: ps_printf(p, "/Contents %zu 0 R\n", base);
674: ps_printf(p, ">>\nendobj\n");
675: } else
676: ps_printf(p, "showpage\n");
1.37 kristaps 677:
1.50 kristaps 678: p->ps->pages++;
679: p->ps->psrow = p->ps->top;
680: assert( ! (PS_NEWPAGE & p->ps->flags));
681: p->ps->flags |= PS_NEWPAGE;
1.37 kristaps 682: }
683:
684:
1.3 kristaps 685: /* ARGSUSED */
1.2 kristaps 686: static void
687: ps_end(struct termp *p)
688: {
1.38 kristaps 689: size_t i, xref, base;
1.2 kristaps 690:
1.4 kristaps 691: /*
692: * At the end of the file, do one last showpage. This is the
693: * same behaviour as groff(1) and works for multiple pages as
694: * well as just one.
695: */
696:
1.50 kristaps 697: if ( ! (PS_NEWPAGE & p->ps->flags)) {
698: assert(0 == p->ps->flags);
699: assert('\0' == p->ps->last);
1.37 kristaps 700: ps_closepage(p);
1.30 kristaps 701: }
1.16 kristaps 702:
1.37 kristaps 703: if (TERMTYPE_PS == p->type) {
704: ps_printf(p, "%%%%Trailer\n");
1.50 kristaps 705: ps_printf(p, "%%%%Pages: %zu\n", p->ps->pages);
1.37 kristaps 706: ps_printf(p, "%%%%EOF\n");
707: return;
708: }
709:
1.39 kristaps 710: pdf_obj(p, 2);
711: ps_printf(p, "<<\n/Type /Pages\n");
1.37 kristaps 712: ps_printf(p, "/MediaBox [0 0 %zu %zu]\n",
1.50 kristaps 713: (size_t)AFM2PNT(p, p->ps->width),
714: (size_t)AFM2PNT(p, p->ps->height));
1.37 kristaps 715:
1.50 kristaps 716: ps_printf(p, "/Count %zu\n", p->ps->pages);
1.37 kristaps 717: ps_printf(p, "/Kids [");
718:
1.50 kristaps 719: for (i = 0; i < p->ps->pages; i++)
1.38 kristaps 720: ps_printf(p, " %zu 0 R", i * 4 +
1.50 kristaps 721: p->ps->pdfbody + 3);
1.38 kristaps 722:
1.50 kristaps 723: base = (p->ps->pages - 1) * 4 +
724: p->ps->pdfbody + 4;
1.38 kristaps 725:
726: ps_printf(p, "]\n>>\nendobj\n");
1.39 kristaps 727: pdf_obj(p, base);
1.37 kristaps 728: ps_printf(p, "<<\n");
729: ps_printf(p, "/Type /Catalog\n");
730: ps_printf(p, "/Pages 2 0 R\n");
731: ps_printf(p, ">>\n");
1.50 kristaps 732: xref = p->ps->pdfbytes;
1.37 kristaps 733: ps_printf(p, "xref\n");
1.38 kristaps 734: ps_printf(p, "0 %zu\n", base + 1);
1.39 kristaps 735: ps_printf(p, "0000000000 65535 f \n");
736:
737: for (i = 0; i < base; i++)
738: ps_printf(p, "%.10zu 00000 n \n",
1.50 kristaps 739: p->ps->pdfobjs[(int)i]);
1.39 kristaps 740:
1.37 kristaps 741: ps_printf(p, "trailer\n");
742: ps_printf(p, "<<\n");
1.38 kristaps 743: ps_printf(p, "/Size %zu\n", base + 1);
744: ps_printf(p, "/Root %zu 0 R\n", base);
1.37 kristaps 745: ps_printf(p, "/Info 1 0 R\n");
746: ps_printf(p, ">>\n");
747: ps_printf(p, "startxref\n");
748: ps_printf(p, "%zu\n", xref);
749: ps_printf(p, "%%%%EOF\n");
1.2 kristaps 750: }
751:
752:
753: static void
754: ps_begin(struct termp *p)
755: {
1.13 kristaps 756: time_t t;
1.16 kristaps 757: int i;
1.2 kristaps 758:
1.9 kristaps 759: /*
760: * Print margins into margin buffer. Nothing gets output to the
761: * screen yet, so we don't need to initialise the primary state.
1.2 kristaps 762: */
763:
1.50 kristaps 764: if (p->ps->psmarg) {
765: assert(p->ps->psmargsz);
766: p->ps->psmarg[0] = '\0';
1.4 kristaps 767: }
768:
1.50 kristaps 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;
1.4 kristaps 774:
1.9 kristaps 775: ps_setfont(p, TERMFONT_NONE);
1.4 kristaps 776:
777: (*p->headf)(p, p->argf);
778: (*p->endline)(p);
779:
1.50 kristaps 780: p->ps->pscol = p->ps->left;
781: p->ps->psrow = p->ps->footer;
1.4 kristaps 782:
783: (*p->footf)(p, p->argf);
784: (*p->endline)(p);
785:
1.50 kristaps 786: p->ps->flags &= ~PS_MARGINS;
1.9 kristaps 787:
1.50 kristaps 788: assert(0 == p->ps->flags);
789: assert(p->ps->psmarg);
790: assert('\0' != p->ps->psmarg[0]);
1.9 kristaps 791:
792: /*
793: * Print header and initialise page state. Following this,
794: * stuff gets printed to the screen, so make sure we're sane.
795: */
1.4 kristaps 796:
1.13 kristaps 797: t = time(NULL);
798:
1.37 kristaps 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: "
807: "Default %zu %zu 0 () ()\n",
1.50 kristaps 808: (size_t)AFM2PNT(p, p->ps->width),
809: (size_t)AFM2PNT(p, p->ps->height));
1.37 kristaps 810: ps_printf(p, "%%%%DocumentNeededResources: font");
811:
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");
1.39 kristaps 818: pdf_obj(p, 1);
1.37 kristaps 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++) {
1.39 kristaps 824: pdf_obj(p, (size_t)i + 3);
1.37 kristaps 825: ps_printf(p, "<<\n");
826: ps_printf(p, "/Type /Font\n");
827: ps_printf(p, "/Subtype /Type1\n");
828: ps_printf(p, "/Name /F%zu\n", i);
829: ps_printf(p, "/BaseFont /%s\n", fonts[i].name);
830: ps_printf(p, ">>\n");
831: }
832: }
1.16 kristaps 833:
1.50 kristaps 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;
1.33 kristaps 838: ps_setfont(p, TERMFONT_NONE);
1.2 kristaps 839: }
840:
841:
842: static void
1.13 kristaps 843: ps_pletter(struct termp *p, int c)
1.2 kristaps 844: {
1.14 kristaps 845: int f;
1.32 kristaps 846:
1.9 kristaps 847: /*
1.32 kristaps 848: * If we haven't opened a page context, then output that we're
849: * in a new page and make sure the font is correctly set.
1.9 kristaps 850: */
851:
1.50 kristaps 852: if (PS_NEWPAGE & p->ps->flags) {
1.37 kristaps 853: if (TERMTYPE_PS == p->type) {
854: ps_printf(p, "%%%%Page: %zu %zu\n",
1.50 kristaps 855: p->ps->pages + 1,
856: p->ps->pages + 1);
1.37 kristaps 857: ps_printf(p, "/%s %zu selectfont\n",
1.50 kristaps 858: fonts[(int)p->ps->lastf].name,
859: p->ps->scale);
1.37 kristaps 860: } else {
1.50 kristaps 861: pdf_obj(p, p->ps->pdfbody +
862: p->ps->pages * 4);
1.37 kristaps 863: ps_printf(p, "<<\n");
864: ps_printf(p, "/Length %zu 0 R\n",
1.50 kristaps 865: p->ps->pdfbody + 1 +
866: p->ps->pages * 4);
1.37 kristaps 867: ps_printf(p, ">>\nstream\n");
868: }
1.50 kristaps 869: p->ps->pdflastpg = p->ps->pdfbytes;
870: p->ps->flags &= ~PS_NEWPAGE;
1.32 kristaps 871: }
872:
873: /*
874: * If we're not in a PostScript "word" context, then open one
875: * now at the current cursor.
876: */
1.30 kristaps 877:
1.50 kristaps 878: if ( ! (PS_INLINE & p->ps->flags)) {
1.37 kristaps 879: if (TERMTYPE_PS != p->type) {
880: ps_printf(p, "BT\n/F%d %zu Tf\n",
1.50 kristaps 881: (int)p->ps->lastf,
882: p->ps->scale);
1.37 kristaps 883: ps_printf(p, "%.3f %.3f Td\n(",
1.50 kristaps 884: AFM2PNT(p, p->ps->pscol),
885: AFM2PNT(p, p->ps->psrow));
1.37 kristaps 886: } else
887: ps_printf(p, "%.3f %.3f moveto\n(",
1.50 kristaps 888: AFM2PNT(p, p->ps->pscol),
889: AFM2PNT(p, p->ps->psrow));
890: p->ps->flags |= PS_INLINE;
1.2 kristaps 891: }
892:
1.50 kristaps 893: assert( ! (PS_NEWPAGE & p->ps->flags));
1.29 kristaps 894:
1.2 kristaps 895: /*
896: * We need to escape these characters as per the PostScript
897: * specification. We would also escape non-graphable characters
898: * (like tabs), but none of them would get to this point and
899: * it's superfluous to abort() on them.
900: */
901:
902: switch (c) {
903: case ('('):
904: /* FALLTHROUGH */
905: case (')'):
906: /* FALLTHROUGH */
907: case ('\\'):
1.4 kristaps 908: ps_putchar(p, '\\');
1.2 kristaps 909: break;
910: default:
911: break;
912: }
913:
914: /* Write the character and adjust where we are on the page. */
1.9 kristaps 915:
1.50 kristaps 916: f = (int)p->ps->lastf;
1.13 kristaps 917:
1.45 schwarze 918: if (c <= 32 || (c - 32 >= MAXCHAR)) {
1.13 kristaps 919: ps_putchar(p, ' ');
1.50 kristaps 920: p->ps->pscol += (size_t)fonts[f].gly[0].wx;
1.13 kristaps 921: return;
922: }
923:
1.25 kristaps 924: ps_putchar(p, (char)c);
1.14 kristaps 925: c -= 32;
1.50 kristaps 926: p->ps->pscol += (size_t)fonts[f].gly[c].wx;
1.2 kristaps 927: }
928:
929:
930: static void
1.9 kristaps 931: ps_pclose(struct termp *p)
932: {
933:
934: /*
935: * Spit out that we're exiting a word context (this is a
936: * "partial close" because we don't check the last-char buffer
937: * or anything).
938: */
939:
1.50 kristaps 940: if ( ! (PS_INLINE & p->ps->flags))
1.9 kristaps 941: return;
942:
1.37 kristaps 943: if (TERMTYPE_PS != p->type) {
944: ps_printf(p, ") Tj\nET\n");
945: } else
946: ps_printf(p, ") show\n");
947:
1.50 kristaps 948: p->ps->flags &= ~PS_INLINE;
1.9 kristaps 949: }
950:
951:
952: static void
953: ps_fclose(struct termp *p)
954: {
955:
956: /*
957: * Strong closure: if we have a last-char, spit it out after
958: * checking that we're in the right font mode. This will of
959: * course open a new scope, if applicable.
960: *
961: * Following this, close out any scope that's open.
962: */
963:
1.50 kristaps 964: if ('\0' != p->ps->last) {
965: if (p->ps->lastf != TERMFONT_NONE) {
1.9 kristaps 966: ps_pclose(p);
967: ps_setfont(p, TERMFONT_NONE);
968: }
1.50 kristaps 969: ps_pletter(p, p->ps->last);
970: p->ps->last = '\0';
1.9 kristaps 971: }
972:
1.50 kristaps 973: if ( ! (PS_INLINE & p->ps->flags))
1.9 kristaps 974: return;
975:
976: ps_pclose(p);
977: }
978:
979:
980: static void
1.49 kristaps 981: ps_letter(struct termp *p, int arg)
1.8 kristaps 982: {
1.49 kristaps 983: char cc, c;
984:
985: /* LINTED */
986: c = arg >= 128 || arg <= 0 ? '?' : arg;
1.9 kristaps 987:
988: /*
989: * State machine dictates whether to buffer the last character
990: * or not. Basically, encoded words are detected by checking if
991: * we're an "8" and switching on the buffer. Then we put "8" in
992: * our buffer, and on the next charater, flush both character
993: * and buffer. Thus, "regular" words are detected by having a
994: * regular character and a regular buffer character.
995: */
996:
1.50 kristaps 997: if ('\0' == p->ps->last) {
1.8 kristaps 998: assert(8 != c);
1.50 kristaps 999: p->ps->last = c;
1.8 kristaps 1000: return;
1.50 kristaps 1001: } else if (8 == p->ps->last) {
1.8 kristaps 1002: assert(8 != c);
1.50 kristaps 1003: p->ps->last = '\0';
1.8 kristaps 1004: } else if (8 == c) {
1.50 kristaps 1005: assert(8 != p->ps->last);
1006: if ('_' == p->ps->last) {
1007: if (p->ps->lastf != TERMFONT_UNDER) {
1.9 kristaps 1008: ps_pclose(p);
1009: ps_setfont(p, TERMFONT_UNDER);
1010: }
1.50 kristaps 1011: } else if (p->ps->lastf != TERMFONT_BOLD) {
1.9 kristaps 1012: ps_pclose(p);
1013: ps_setfont(p, TERMFONT_BOLD);
1014: }
1.50 kristaps 1015: p->ps->last = c;
1.8 kristaps 1016: return;
1017: } else {
1.50 kristaps 1018: if (p->ps->lastf != TERMFONT_NONE) {
1.9 kristaps 1019: ps_pclose(p);
1020: ps_setfont(p, TERMFONT_NONE);
1021: }
1.50 kristaps 1022: cc = p->ps->last;
1023: p->ps->last = c;
1.8 kristaps 1024: c = cc;
1025: }
1026:
1.9 kristaps 1027: ps_pletter(p, c);
1.8 kristaps 1028: }
1029:
1030:
1031: static void
1.2 kristaps 1032: ps_advance(struct termp *p, size_t len)
1033: {
1034:
1.9 kristaps 1035: /*
1036: * Advance some spaces. This can probably be made smarter,
1037: * i.e., to have multiple space-separated words in the same
1038: * scope, but this is easier: just close out the current scope
1039: * and readjust our column settings.
1040: */
1.8 kristaps 1041:
1.9 kristaps 1042: ps_fclose(p);
1.50 kristaps 1043: p->ps->pscol += len;
1.2 kristaps 1044: }
1045:
1046:
1047: static void
1048: ps_endline(struct termp *p)
1049: {
1.8 kristaps 1050:
1.9 kristaps 1051: /* Close out any scopes we have open: we're at eoln. */
1052:
1053: ps_fclose(p);
1.2 kristaps 1054:
1.9 kristaps 1055: /*
1056: * If we're in the margin, don't try to recalculate our current
1057: * row. XXX: if the column tries to be fancy with multiple
1058: * lines, we'll do nasty stuff.
1059: */
1.2 kristaps 1060:
1.50 kristaps 1061: if (PS_MARGINS & p->ps->flags)
1.29 kristaps 1062: return;
1063:
1064: /* Left-justify. */
1065:
1.50 kristaps 1066: p->ps->pscol = p->ps->left;
1.29 kristaps 1067:
1068: /* If we haven't printed anything, return. */
1069:
1.50 kristaps 1070: if (PS_NEWPAGE & p->ps->flags)
1.2 kristaps 1071: return;
1072:
1.9 kristaps 1073: /*
1074: * Put us down a line. If we're at the page bottom, spit out a
1075: * showpage and restart our row.
1076: */
1077:
1.50 kristaps 1078: if (p->ps->psrow >= p->ps->lineheight +
1079: p->ps->bottom) {
1080: p->ps->psrow -= p->ps->lineheight;
1.2 kristaps 1081: return;
1082: }
1083:
1.37 kristaps 1084: ps_closepage(p);
1.1 kristaps 1085: }
1.9 kristaps 1086:
1087:
1088: static void
1089: ps_setfont(struct termp *p, enum termfont f)
1090: {
1091:
1.16 kristaps 1092: assert(f < TERMFONT__MAX);
1.50 kristaps 1093: p->ps->lastf = f;
1.32 kristaps 1094:
1095: /*
1096: * If we're still at the top of the page, let the font-setting
1097: * be delayed until we actually have stuff to print.
1098: */
1099:
1.50 kristaps 1100: if (PS_NEWPAGE & p->ps->flags)
1.32 kristaps 1101: return;
1102:
1.37 kristaps 1103: if (TERMTYPE_PS == p->type)
1104: ps_printf(p, "/%s %zu selectfont\n",
1105: fonts[(int)f].name,
1.50 kristaps 1106: p->ps->scale);
1.37 kristaps 1107: else
1108: ps_printf(p, "/F%d %zu Tf\n",
1109: (int)f,
1.50 kristaps 1110: p->ps->scale);
1.9 kristaps 1111: }
1112:
1.11 kristaps 1113:
1.12 kristaps 1114: /* ARGSUSED */
1.11 kristaps 1115: static size_t
1.49 kristaps 1116: ps_width(const struct termp *p, int c)
1.11 kristaps 1117: {
1118:
1.14 kristaps 1119: if (c <= 32 || c - 32 >= MAXCHAR)
1.36 kristaps 1120: return((size_t)fonts[(int)TERMFONT_NONE].gly[0].wx);
1.14 kristaps 1121:
1122: c -= 32;
1.49 kristaps 1123: return((size_t)fonts[(int)TERMFONT_NONE].gly[c].wx);
1.11 kristaps 1124: }
1.19 kristaps 1125:
1126:
1.20 kristaps 1127: static double
1.19 kristaps 1128: ps_hspan(const struct termp *p, const struct roffsu *su)
1129: {
1130: double r;
1131:
1132: /*
1133: * All of these measurements are derived by converting from the
1.21 kristaps 1134: * native measurement to AFM units.
1.19 kristaps 1135: */
1136:
1137: switch (su->unit) {
1138: case (SCALE_CM):
1.21 kristaps 1139: r = PNT2AFM(p, su->scale * 28.34);
1.19 kristaps 1140: break;
1141: case (SCALE_IN):
1.21 kristaps 1142: r = PNT2AFM(p, su->scale * 72);
1.19 kristaps 1143: break;
1144: case (SCALE_PC):
1.21 kristaps 1145: r = PNT2AFM(p, su->scale * 12);
1.19 kristaps 1146: break;
1147: case (SCALE_PT):
1.21 kristaps 1148: r = PNT2AFM(p, su->scale * 100);
1.19 kristaps 1149: break;
1150: case (SCALE_EM):
1.36 kristaps 1151: r = su->scale *
1.19 kristaps 1152: fonts[(int)TERMFONT_NONE].gly[109 - 32].wx;
1153: break;
1154: case (SCALE_MM):
1.21 kristaps 1155: r = PNT2AFM(p, su->scale * 2.834);
1.19 kristaps 1156: break;
1157: case (SCALE_EN):
1.36 kristaps 1158: r = su->scale *
1.19 kristaps 1159: fonts[(int)TERMFONT_NONE].gly[110 - 32].wx;
1160: break;
1161: case (SCALE_VS):
1.50 kristaps 1162: r = su->scale * p->ps->lineheight;
1.19 kristaps 1163: break;
1164: default:
1165: r = su->scale;
1166: break;
1167: }
1168:
1.20 kristaps 1169: return(r);
1.50 kristaps 1170: }
1171:
1172: static void
1173: ps_growbuf(struct termp *p, size_t sz)
1174: {
1175: if (p->ps->psmargcur + sz <= p->ps->psmargsz)
1176: return;
1177:
1178: if (sz < PS_BUFSLOP)
1179: sz = PS_BUFSLOP;
1180:
1181: p->ps->psmargsz += sz;
1182:
1183: p->ps->psmarg = mandoc_realloc
1184: (p->ps->psmarg, p->ps->psmargsz);
1.19 kristaps 1185: }
1186:
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