Annotation of mandoc/term_ps.c, Revision 1.63
1.63 ! schwarze 1: /* $Id: term_ps.c,v 1.62 2014/08/01 19:25:52 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: #include "config.h"
19:
1.43 kristaps 20: #include <sys/types.h>
1.4 kristaps 21:
1.2 kristaps 22: #include <assert.h>
1.4 kristaps 23: #include <stdarg.h>
1.17 kristaps 24: #include <stdint.h>
1.2 kristaps 25: #include <stdio.h>
1.1 kristaps 26: #include <stdlib.h>
1.4 kristaps 27: #include <string.h>
1.13 kristaps 28: #include <time.h>
1.26 kristaps 29: #include <unistd.h>
1.1 kristaps 30:
1.42 schwarze 31: #include "mandoc.h"
1.56 schwarze 32: #include "mandoc_aux.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. */
1.59 schwarze 41: #define PNT2AFM(p, x) \
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 */
1.59 schwarze 45: #define AFM2PNT(p, x) \
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) */
1.57 schwarze 77: size_t lastwidth; /* page width before last ll */
1.50 kristaps 78: size_t left; /* body left (AFM units) */
79: size_t header; /* header pos (AFM units) */
80: size_t footer; /* footer pos (AFM units) */
1.59 schwarze 81: size_t pdfbytes; /* current output byte */
1.50 kristaps 82: size_t pdflastpg; /* byte of last page mark */
83: size_t pdfbody; /* start of body object */
84: size_t *pdfobjs; /* table of object offsets */
85: size_t pdfobjsz; /* size of pdfobjs */
86: };
87:
88: static double ps_hspan(const struct termp *,
89: const struct roffsu *);
90: static size_t ps_width(const struct termp *, int);
91: static void ps_advance(struct termp *, size_t);
92: static void ps_begin(struct termp *);
93: static void ps_closepage(struct termp *);
94: static void ps_end(struct termp *);
95: static void ps_endline(struct termp *);
96: static void ps_fclose(struct termp *);
97: static void ps_growbuf(struct termp *, size_t);
98: static void ps_letter(struct termp *, int);
99: static void ps_pclose(struct termp *);
100: static void ps_pletter(struct termp *, int);
1.55 joerg 101: #if __GNUC__ - 0 >= 4
102: __attribute__((__format__ (__printf__, 2, 3)))
103: #endif
1.50 kristaps 104: static void ps_printf(struct termp *, const char *, ...);
105: static void ps_putchar(struct termp *, char);
106: static void ps_setfont(struct termp *, enum termfont);
1.58 schwarze 107: static void ps_setwidth(struct termp *, int, size_t);
1.50 kristaps 108: static struct termp *pspdf_alloc(char *);
109: static void pdf_obj(struct termp *, size_t);
110:
1.13 kristaps 111: /*
112: * We define, for the time being, three fonts: bold, oblique/italic, and
113: * normal (roman). The following table hard-codes the font metrics for
114: * ASCII, i.e., 32--127.
115: */
116:
1.16 kristaps 117: static const struct font fonts[TERMFONT__MAX] = {
1.24 kristaps 118: { "Times-Roman", {
119: { 250 },
120: { 333 },
121: { 408 },
122: { 500 },
123: { 500 },
124: { 833 },
125: { 778 },
126: { 333 },
127: { 333 },
128: { 333 },
129: { 500 },
130: { 564 },
131: { 250 },
132: { 333 },
133: { 250 },
134: { 278 },
135: { 500 },
136: { 500 },
137: { 500 },
138: { 500 },
139: { 500 },
140: { 500 },
141: { 500 },
142: { 500 },
143: { 500 },
144: { 500 },
145: { 278 },
146: { 278 },
147: { 564 },
148: { 564 },
149: { 564 },
150: { 444 },
151: { 921 },
152: { 722 },
153: { 667 },
154: { 667 },
155: { 722 },
156: { 611 },
157: { 556 },
158: { 722 },
159: { 722 },
160: { 333 },
161: { 389 },
162: { 722 },
163: { 611 },
164: { 889 },
165: { 722 },
166: { 722 },
167: { 556 },
168: { 722 },
169: { 667 },
170: { 556 },
171: { 611 },
172: { 722 },
173: { 722 },
174: { 944 },
175: { 722 },
176: { 722 },
177: { 611 },
178: { 333 },
179: { 278 },
180: { 333 },
181: { 469 },
182: { 500 },
183: { 333 },
184: { 444 },
185: { 500 },
186: { 444 },
187: { 500},
188: { 444},
189: { 333},
190: { 500},
191: { 500},
192: { 278},
193: { 278},
194: { 500},
195: { 278},
196: { 778},
197: { 500},
198: { 500},
199: { 500},
200: { 500},
201: { 333},
202: { 389},
203: { 278},
204: { 500},
205: { 500},
206: { 722},
207: { 500},
208: { 500},
209: { 444},
210: { 480},
211: { 200},
212: { 480},
213: { 541},
214: } },
215: { "Times-Bold", {
216: { 250 },
217: { 333 },
218: { 555 },
219: { 500 },
220: { 500 },
221: { 1000 },
222: { 833 },
223: { 333 },
224: { 333 },
225: { 333 },
226: { 500 },
227: { 570 },
228: { 250 },
229: { 333 },
230: { 250 },
231: { 278 },
232: { 500 },
233: { 500 },
234: { 500 },
235: { 500 },
236: { 500 },
237: { 500 },
238: { 500 },
239: { 500 },
240: { 500 },
241: { 500 },
242: { 333 },
243: { 333 },
244: { 570 },
245: { 570 },
246: { 570 },
247: { 500 },
248: { 930 },
249: { 722 },
250: { 667 },
251: { 722 },
252: { 722 },
253: { 667 },
254: { 611 },
255: { 778 },
256: { 778 },
257: { 389 },
258: { 500 },
259: { 778 },
260: { 667 },
261: { 944 },
262: { 722 },
263: { 778 },
264: { 611 },
265: { 778 },
266: { 722 },
267: { 556 },
268: { 667 },
269: { 722 },
270: { 722 },
271: { 1000 },
272: { 722 },
273: { 722 },
274: { 667 },
275: { 333 },
276: { 278 },
277: { 333 },
278: { 581 },
279: { 500 },
280: { 333 },
281: { 500 },
282: { 556 },
283: { 444 },
1.22 kristaps 284: { 556 },
1.24 kristaps 285: { 444 },
286: { 333 },
1.22 kristaps 287: { 500 },
1.24 kristaps 288: { 556 },
1.22 kristaps 289: { 278 },
1.24 kristaps 290: { 333 },
291: { 556 },
1.22 kristaps 292: { 278 },
1.24 kristaps 293: { 833 },
1.22 kristaps 294: { 556 },
1.24 kristaps 295: { 500 },
1.22 kristaps 296: { 556 },
297: { 556 },
298: { 444 },
1.24 kristaps 299: { 389 },
300: { 333 },
1.22 kristaps 301: { 556 },
302: { 500 },
1.24 kristaps 303: { 722 },
304: { 500 },
1.22 kristaps 305: { 500 },
1.24 kristaps 306: { 444 },
307: { 394 },
308: { 220 },
309: { 394 },
310: { 520 },
1.13 kristaps 311: } },
1.24 kristaps 312: { "Times-Italic", {
313: { 250 },
314: { 333 },
315: { 420 },
316: { 500 },
317: { 500 },
318: { 833 },
319: { 778 },
320: { 333 },
321: { 333 },
322: { 333 },
323: { 500 },
324: { 675 },
325: { 250 },
326: { 333 },
327: { 250 },
328: { 278 },
329: { 500 },
330: { 500 },
331: { 500 },
332: { 500 },
333: { 500 },
334: { 500 },
335: { 500 },
336: { 500 },
337: { 500 },
338: { 500 },
339: { 333 },
340: { 333 },
341: { 675 },
342: { 675 },
343: { 675 },
344: { 500 },
345: { 920 },
346: { 611 },
347: { 611 },
348: { 667 },
349: { 722 },
350: { 611 },
351: { 611 },
352: { 722 },
353: { 722 },
354: { 333 },
355: { 444 },
356: { 667 },
357: { 556 },
358: { 833 },
359: { 667 },
360: { 722 },
361: { 611 },
362: { 722 },
363: { 611 },
364: { 500 },
365: { 556 },
366: { 722 },
367: { 611 },
368: { 833 },
369: { 611 },
370: { 556 },
371: { 556 },
372: { 389 },
373: { 278 },
374: { 389 },
375: { 422 },
376: { 500 },
377: { 333 },
378: { 500 },
379: { 500 },
380: { 444 },
1.22 kristaps 381: { 500 },
1.24 kristaps 382: { 444 },
383: { 278 },
1.22 kristaps 384: { 500 },
385: { 500 },
386: { 278 },
1.24 kristaps 387: { 278 },
388: { 444 },
389: { 278 },
390: { 722 },
391: { 500 },
392: { 500 },
393: { 500 },
1.22 kristaps 394: { 500 },
1.24 kristaps 395: { 389 },
396: { 389 },
1.22 kristaps 397: { 278 },
398: { 500 },
1.24 kristaps 399: { 444 },
400: { 667 },
401: { 444 },
402: { 444 },
403: { 389 },
404: { 400 },
1.22 kristaps 405: { 275 },
1.24 kristaps 406: { 400 },
407: { 541 },
1.13 kristaps 408: } },
409: };
410:
1.37 kristaps 411: void *
412: pdf_alloc(char *outopts)
413: {
414: struct termp *p;
415:
1.38 kristaps 416: if (NULL != (p = pspdf_alloc(outopts)))
417: p->type = TERMTYPE_PDF;
1.37 kristaps 418:
419: return(p);
420: }
1.2 kristaps 421:
1.1 kristaps 422: void *
1.17 kristaps 423: ps_alloc(char *outopts)
1.1 kristaps 424: {
425: struct termp *p;
1.37 kristaps 426:
1.38 kristaps 427: if (NULL != (p = pspdf_alloc(outopts)))
428: p->type = TERMTYPE_PS;
1.37 kristaps 429:
430: return(p);
431: }
432:
433: static struct termp *
434: pspdf_alloc(char *outopts)
435: {
436: struct termp *p;
1.52 kristaps 437: unsigned int pagex, pagey;
438: size_t marginx, marginy, lineheight;
1.17 kristaps 439: const char *toks[2];
1.25 kristaps 440: const char *pp;
1.17 kristaps 441: char *v;
1.1 kristaps 442:
1.51 kristaps 443: p = mandoc_calloc(1, sizeof(struct termp));
444: p->enc = TERMENC_ASCII;
1.50 kristaps 445: p->ps = mandoc_calloc(1, sizeof(struct termp_ps));
1.1 kristaps 446:
1.19 kristaps 447: p->advance = ps_advance;
1.2 kristaps 448: p->begin = ps_begin;
449: p->end = ps_end;
450: p->endline = ps_endline;
1.19 kristaps 451: p->hspan = ps_hspan;
452: p->letter = ps_letter;
1.57 schwarze 453: p->setwidth = ps_setwidth;
1.11 kristaps 454: p->width = ps_width;
1.59 schwarze 455:
1.17 kristaps 456: toks[0] = "paper";
457: toks[1] = NULL;
458:
1.25 kristaps 459: pp = NULL;
1.19 kristaps 460:
1.17 kristaps 461: while (outopts && *outopts)
462: switch (getsubopt(&outopts, UNCONST(toks), &v)) {
1.59 schwarze 463: case 0:
1.25 kristaps 464: pp = v;
1.17 kristaps 465: break;
466: default:
467: break;
468: }
1.16 kristaps 469:
1.25 kristaps 470: /* Default to US letter (millimetres). */
471:
1.31 kristaps 472: pagex = 216;
473: pagey = 279;
1.25 kristaps 474:
475: /*
476: * The ISO-269 paper sizes can be calculated automatically, but
477: * it would require bringing in -lm for pow() and I'd rather not
478: * do that. So just do it the easy way for now. Since this
479: * only happens once, I'm not terribly concerned.
480: */
481:
482: if (pp && strcasecmp(pp, "letter")) {
483: if (0 == strcasecmp(pp, "a3")) {
484: pagex = 297;
485: pagey = 420;
486: } else if (0 == strcasecmp(pp, "a4")) {
487: pagex = 210;
488: pagey = 297;
489: } else if (0 == strcasecmp(pp, "a5")) {
490: pagex = 148;
491: pagey = 210;
492: } else if (0 == strcasecmp(pp, "legal")) {
493: pagex = 216;
494: pagey = 356;
1.52 kristaps 495: } else if (2 != sscanf(pp, "%ux%u", &pagex, &pagey))
1.25 kristaps 496: fprintf(stderr, "%s: Unknown paper\n", pp);
1.54 schwarze 497: }
1.27 kristaps 498:
1.59 schwarze 499: /*
1.27 kristaps 500: * This MUST be defined before any PNT2AFM or AFM2PNT
501: * calculations occur.
502: */
503:
1.50 kristaps 504: p->ps->scale = 11;
1.27 kristaps 505:
1.25 kristaps 506: /* Remember millimetres -> AFM units. */
507:
508: pagex = PNT2AFM(p, ((double)pagex * 2.834));
509: pagey = PNT2AFM(p, ((double)pagey * 2.834));
510:
1.28 kristaps 511: /* Margins are 1/9 the page x and y. */
1.27 kristaps 512:
1.59 schwarze 513: marginx = (size_t)((double)pagex / 9.0);
514: marginy = (size_t)((double)pagey / 9.0);
1.27 kristaps 515:
1.31 kristaps 516: /* Line-height is 1.4em. */
517:
1.50 kristaps 518: lineheight = PNT2AFM(p, ((double)p->ps->scale * 1.4));
1.16 kristaps 519:
1.57 schwarze 520: p->ps->width = p->ps->lastwidth = (size_t)pagex;
1.52 kristaps 521: p->ps->height = (size_t)pagey;
1.50 kristaps 522: p->ps->header = pagey - (marginy / 2) - (lineheight / 2);
523: p->ps->top = pagey - marginy;
524: p->ps->footer = (marginy / 2) - (lineheight / 2);
525: p->ps->bottom = marginy;
526: p->ps->left = marginx;
527: p->ps->lineheight = lineheight;
1.16 kristaps 528:
1.28 kristaps 529: p->defrmargin = pagex - (marginx * 2);
1.1 kristaps 530: return(p);
1.57 schwarze 531: }
532:
533: static void
1.58 schwarze 534: ps_setwidth(struct termp *p, int iop, size_t width)
1.57 schwarze 535: {
536: size_t lastwidth;
537:
538: lastwidth = p->ps->width;
1.58 schwarze 539: if (0 < iop)
540: p->ps->width += width;
541: else if (0 > iop)
542: p->ps->width -= width;
543: else
544: p->ps->width = width ? width : p->ps->lastwidth;
1.57 schwarze 545: p->ps->lastwidth = lastwidth;
1.1 kristaps 546: }
547:
548: void
1.37 kristaps 549: pspdf_free(void *arg)
1.1 kristaps 550: {
1.4 kristaps 551: struct termp *p;
552:
553: p = (struct termp *)arg;
554:
1.50 kristaps 555: if (p->ps->psmarg)
556: free(p->ps->psmarg);
557: if (p->ps->pdfobjs)
558: free(p->ps->pdfobjs);
1.4 kristaps 559:
1.50 kristaps 560: free(p->ps);
1.4 kristaps 561: term_free(p);
562: }
563:
564: static void
565: ps_printf(struct termp *p, const char *fmt, ...)
566: {
567: va_list ap;
1.37 kristaps 568: int pos, len;
1.4 kristaps 569:
570: va_start(ap, fmt);
571:
572: /*
573: * If we're running in regular mode, then pipe directly into
574: * vprintf(). If we're processing margins, then push the data
575: * into our growable margin buffer.
576: */
1.1 kristaps 577:
1.50 kristaps 578: if ( ! (PS_MARGINS & p->ps->flags)) {
1.37 kristaps 579: len = vprintf(fmt, ap);
1.4 kristaps 580: va_end(ap);
1.59 schwarze 581: p->ps->pdfbytes += len < 0 ? 0 : (size_t)len;
1.4 kristaps 582: return;
583: }
584:
1.59 schwarze 585: /*
1.4 kristaps 586: * XXX: I assume that the in-margin print won't exceed
587: * PS_BUFSLOP (128 bytes), which is reasonable but still an
588: * assumption that will cause pukeage if it's not the case.
589: */
590:
1.40 joerg 591: ps_growbuf(p, PS_BUFSLOP);
1.4 kristaps 592:
1.50 kristaps 593: pos = (int)p->ps->psmargcur;
1.54 schwarze 594: vsnprintf(&p->ps->psmarg[pos], PS_BUFSLOP, fmt, ap);
1.5 kristaps 595:
596: va_end(ap);
1.37 kristaps 597:
1.50 kristaps 598: p->ps->psmargcur = strlen(p->ps->psmarg);
1.4 kristaps 599: }
600:
601: static void
602: ps_putchar(struct termp *p, char c)
603: {
604: int pos;
605:
606: /* See ps_printf(). */
607:
1.50 kristaps 608: if ( ! (PS_MARGINS & p->ps->flags)) {
1.4 kristaps 609: putchar(c);
1.50 kristaps 610: p->ps->pdfbytes++;
1.4 kristaps 611: return;
612: }
613:
1.40 joerg 614: ps_growbuf(p, 2);
1.4 kristaps 615:
1.50 kristaps 616: pos = (int)p->ps->psmargcur++;
617: p->ps->psmarg[pos++] = c;
618: p->ps->psmarg[pos] = '\0';
1.2 kristaps 619: }
620:
1.37 kristaps 621: static void
1.39 kristaps 622: pdf_obj(struct termp *p, size_t obj)
623: {
624:
625: assert(obj > 0);
626:
1.50 kristaps 627: if ((obj - 1) >= p->ps->pdfobjsz) {
628: p->ps->pdfobjsz = obj + 128;
1.60 schwarze 629: p->ps->pdfobjs = mandoc_reallocarray(p->ps->pdfobjs,
630: p->ps->pdfobjsz, sizeof(size_t));
1.39 kristaps 631: }
632:
1.50 kristaps 633: p->ps->pdfobjs[(int)obj - 1] = p->ps->pdfbytes;
1.39 kristaps 634: ps_printf(p, "%zu 0 obj\n", obj);
635: }
636:
637: static void
1.37 kristaps 638: ps_closepage(struct termp *p)
639: {
640: int i;
1.38 kristaps 641: size_t len, base;
642:
643: /*
644: * Close out a page that we've already flushed to output. In
645: * PostScript, we simply note that the page must be showed. In
646: * PDF, we must now create the Length, Resource, and Page node
647: * for the page contents.
648: */
1.37 kristaps 649:
1.50 kristaps 650: assert(p->ps->psmarg && p->ps->psmarg[0]);
651: ps_printf(p, "%s", p->ps->psmarg);
1.37 kristaps 652:
1.38 kristaps 653: if (TERMTYPE_PS != p->type) {
1.37 kristaps 654: ps_printf(p, "ET\n");
1.38 kristaps 655:
1.50 kristaps 656: len = p->ps->pdfbytes - p->ps->pdflastpg;
657: base = p->ps->pages * 4 + p->ps->pdfbody;
1.38 kristaps 658:
659: ps_printf(p, "endstream\nendobj\n");
660:
661: /* Length of content. */
1.39 kristaps 662: pdf_obj(p, base + 1);
1.38 kristaps 663: ps_printf(p, "%zu\nendobj\n", len);
664:
665: /* Resource for content. */
1.39 kristaps 666: pdf_obj(p, base + 2);
1.38 kristaps 667: ps_printf(p, "<<\n/ProcSet [/PDF /Text]\n");
1.37 kristaps 668: ps_printf(p, "/Font <<\n");
1.59 schwarze 669: for (i = 0; i < (int)TERMFONT__MAX; i++)
1.37 kristaps 670: ps_printf(p, "/F%d %d 0 R\n", i, 3 + i);
1.38 kristaps 671: ps_printf(p, ">>\n>>\n");
672:
673: /* Page node. */
1.39 kristaps 674: pdf_obj(p, base + 3);
675: ps_printf(p, "<<\n");
1.37 kristaps 676: ps_printf(p, "/Type /Page\n");
677: ps_printf(p, "/Parent 2 0 R\n");
1.38 kristaps 678: ps_printf(p, "/Resources %zu 0 R\n", base + 2);
679: ps_printf(p, "/Contents %zu 0 R\n", base);
680: ps_printf(p, ">>\nendobj\n");
681: } else
682: ps_printf(p, "showpage\n");
1.37 kristaps 683:
1.50 kristaps 684: p->ps->pages++;
685: p->ps->psrow = p->ps->top;
686: assert( ! (PS_NEWPAGE & p->ps->flags));
687: p->ps->flags |= PS_NEWPAGE;
1.37 kristaps 688: }
689:
1.2 kristaps 690: static void
691: ps_end(struct termp *p)
692: {
1.38 kristaps 693: size_t i, xref, base;
1.2 kristaps 694:
1.4 kristaps 695: /*
696: * At the end of the file, do one last showpage. This is the
697: * same behaviour as groff(1) and works for multiple pages as
698: * well as just one.
699: */
700:
1.50 kristaps 701: if ( ! (PS_NEWPAGE & p->ps->flags)) {
702: assert(0 == p->ps->flags);
703: assert('\0' == p->ps->last);
1.37 kristaps 704: ps_closepage(p);
1.30 kristaps 705: }
1.16 kristaps 706:
1.37 kristaps 707: if (TERMTYPE_PS == p->type) {
708: ps_printf(p, "%%%%Trailer\n");
1.50 kristaps 709: ps_printf(p, "%%%%Pages: %zu\n", p->ps->pages);
1.37 kristaps 710: ps_printf(p, "%%%%EOF\n");
711: return;
1.59 schwarze 712: }
1.37 kristaps 713:
1.39 kristaps 714: pdf_obj(p, 2);
715: ps_printf(p, "<<\n/Type /Pages\n");
1.37 kristaps 716: ps_printf(p, "/MediaBox [0 0 %zu %zu]\n",
1.50 kristaps 717: (size_t)AFM2PNT(p, p->ps->width),
718: (size_t)AFM2PNT(p, p->ps->height));
1.37 kristaps 719:
1.50 kristaps 720: ps_printf(p, "/Count %zu\n", p->ps->pages);
1.37 kristaps 721: ps_printf(p, "/Kids [");
722:
1.50 kristaps 723: for (i = 0; i < p->ps->pages; i++)
1.59 schwarze 724: ps_printf(p, " %zu 0 R", i * 4 + p->ps->pdfbody + 3);
1.38 kristaps 725:
1.59 schwarze 726: base = (p->ps->pages - 1) * 4 + 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++)
1.59 schwarze 740: ps_printf(p, "%.10zu 00000 n \n",
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: static void
755: ps_begin(struct termp *p)
756: {
1.13 kristaps 757: time_t t;
1.16 kristaps 758: int i;
1.2 kristaps 759:
1.59 schwarze 760: /*
1.9 kristaps 761: * Print margins into margin buffer. Nothing gets output to the
762: * screen yet, so we don't need to initialise the primary state.
1.2 kristaps 763: */
764:
1.50 kristaps 765: if (p->ps->psmarg) {
766: assert(p->ps->psmargsz);
767: p->ps->psmarg[0] = '\0';
1.4 kristaps 768: }
769:
1.50 kristaps 770: /*p->ps->pdfbytes = 0;*/
771: p->ps->psmargcur = 0;
772: p->ps->flags = PS_MARGINS;
773: p->ps->pscol = p->ps->left;
774: p->ps->psrow = p->ps->header;
1.4 kristaps 775:
1.9 kristaps 776: ps_setfont(p, TERMFONT_NONE);
1.4 kristaps 777:
778: (*p->headf)(p, p->argf);
779: (*p->endline)(p);
780:
1.50 kristaps 781: p->ps->pscol = p->ps->left;
782: p->ps->psrow = p->ps->footer;
1.4 kristaps 783:
784: (*p->footf)(p, p->argf);
785: (*p->endline)(p);
786:
1.50 kristaps 787: p->ps->flags &= ~PS_MARGINS;
1.9 kristaps 788:
1.50 kristaps 789: assert(0 == p->ps->flags);
790: assert(p->ps->psmarg);
791: assert('\0' != p->ps->psmarg[0]);
1.9 kristaps 792:
1.59 schwarze 793: /*
1.9 kristaps 794: * Print header and initialise page state. Following this,
795: * stuff gets printed to the screen, so make sure we're sane.
796: */
1.4 kristaps 797:
1.13 kristaps 798: t = time(NULL);
799:
1.37 kristaps 800: if (TERMTYPE_PS == p->type) {
801: ps_printf(p, "%%!PS-Adobe-3.0\n");
802: ps_printf(p, "%%%%CreationDate: %s", ctime(&t));
803: ps_printf(p, "%%%%DocumentData: Clean7Bit\n");
804: ps_printf(p, "%%%%Orientation: Portrait\n");
805: ps_printf(p, "%%%%Pages: (atend)\n");
806: ps_printf(p, "%%%%PageOrder: Ascend\n");
807: ps_printf(p, "%%%%DocumentMedia: "
1.59 schwarze 808: "Default %zu %zu 0 () ()\n",
809: (size_t)AFM2PNT(p, p->ps->width),
810: (size_t)AFM2PNT(p, p->ps->height));
1.37 kristaps 811: ps_printf(p, "%%%%DocumentNeededResources: font");
812:
813: for (i = 0; i < (int)TERMFONT__MAX; i++)
814: ps_printf(p, " %s", fonts[i].name);
815:
816: ps_printf(p, "\n%%%%EndComments\n");
817: } else {
818: ps_printf(p, "%%PDF-1.1\n");
1.39 kristaps 819: pdf_obj(p, 1);
1.37 kristaps 820: ps_printf(p, "<<\n");
821: ps_printf(p, ">>\n");
822: ps_printf(p, "endobj\n");
823:
824: for (i = 0; i < (int)TERMFONT__MAX; i++) {
1.39 kristaps 825: pdf_obj(p, (size_t)i + 3);
1.37 kristaps 826: ps_printf(p, "<<\n");
827: ps_printf(p, "/Type /Font\n");
828: ps_printf(p, "/Subtype /Type1\n");
1.55 joerg 829: ps_printf(p, "/Name /F%d\n", i);
1.37 kristaps 830: ps_printf(p, "/BaseFont /%s\n", fonts[i].name);
831: ps_printf(p, ">>\n");
832: }
833: }
1.16 kristaps 834:
1.50 kristaps 835: p->ps->pdfbody = (size_t)TERMFONT__MAX + 3;
836: p->ps->pscol = p->ps->left;
837: p->ps->psrow = p->ps->top;
838: p->ps->flags |= PS_NEWPAGE;
1.33 kristaps 839: ps_setfont(p, TERMFONT_NONE);
1.2 kristaps 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) {
1.59 schwarze 854: ps_printf(p, "%%%%Page: %zu %zu\n",
855: p->ps->pages + 1, p->ps->pages + 1);
856: ps_printf(p, "/%s %zu selectfont\n",
857: fonts[(int)p->ps->lastf].name,
858: p->ps->scale);
1.37 kristaps 859: } else {
1.59 schwarze 860: pdf_obj(p, p->ps->pdfbody +
861: p->ps->pages * 4);
1.37 kristaps 862: ps_printf(p, "<<\n");
1.59 schwarze 863: ps_printf(p, "/Length %zu 0 R\n",
864: p->ps->pdfbody + 1 + p->ps->pages * 4);
1.37 kristaps 865: ps_printf(p, ">>\nstream\n");
866: }
1.50 kristaps 867: p->ps->pdflastpg = p->ps->pdfbytes;
868: p->ps->flags &= ~PS_NEWPAGE;
1.32 kristaps 869: }
1.59 schwarze 870:
1.32 kristaps 871: /*
872: * If we're not in a PostScript "word" context, then open one
873: * now at the current cursor.
874: */
1.30 kristaps 875:
1.50 kristaps 876: if ( ! (PS_INLINE & p->ps->flags)) {
1.37 kristaps 877: if (TERMTYPE_PS != p->type) {
1.59 schwarze 878: ps_printf(p, "BT\n/F%d %zu Tf\n",
879: (int)p->ps->lastf, p->ps->scale);
1.37 kristaps 880: ps_printf(p, "%.3f %.3f Td\n(",
1.59 schwarze 881: AFM2PNT(p, p->ps->pscol),
882: AFM2PNT(p, p->ps->psrow));
1.37 kristaps 883: } else
1.59 schwarze 884: ps_printf(p, "%.3f %.3f moveto\n(",
885: AFM2PNT(p, p->ps->pscol),
886: AFM2PNT(p, p->ps->psrow));
1.50 kristaps 887: p->ps->flags |= PS_INLINE;
1.2 kristaps 888: }
889:
1.50 kristaps 890: assert( ! (PS_NEWPAGE & p->ps->flags));
1.29 kristaps 891:
1.2 kristaps 892: /*
893: * We need to escape these characters as per the PostScript
894: * specification. We would also escape non-graphable characters
895: * (like tabs), but none of them would get to this point and
896: * it's superfluous to abort() on them.
897: */
898:
899: switch (c) {
1.59 schwarze 900: case '(':
1.2 kristaps 901: /* FALLTHROUGH */
1.59 schwarze 902: case ')':
1.2 kristaps 903: /* FALLTHROUGH */
1.59 schwarze 904: case '\\':
1.4 kristaps 905: ps_putchar(p, '\\');
1.2 kristaps 906: break;
907: default:
908: break;
909: }
910:
911: /* Write the character and adjust where we are on the page. */
1.9 kristaps 912:
1.50 kristaps 913: f = (int)p->ps->lastf;
1.13 kristaps 914:
1.61 schwarze 915: if (c <= 32 || c - 32 >= MAXCHAR)
916: c = 32;
1.13 kristaps 917:
1.25 kristaps 918: ps_putchar(p, (char)c);
1.14 kristaps 919: c -= 32;
1.50 kristaps 920: p->ps->pscol += (size_t)fonts[f].gly[c].wx;
1.2 kristaps 921: }
922:
923: static void
1.9 kristaps 924: ps_pclose(struct termp *p)
925: {
926:
1.59 schwarze 927: /*
1.9 kristaps 928: * Spit out that we're exiting a word context (this is a
929: * "partial close" because we don't check the last-char buffer
930: * or anything).
931: */
932:
1.50 kristaps 933: if ( ! (PS_INLINE & p->ps->flags))
1.9 kristaps 934: return;
1.59 schwarze 935:
1.37 kristaps 936: if (TERMTYPE_PS != p->type) {
937: ps_printf(p, ") Tj\nET\n");
938: } else
939: ps_printf(p, ") show\n");
940:
1.50 kristaps 941: p->ps->flags &= ~PS_INLINE;
1.9 kristaps 942: }
943:
944: static void
945: ps_fclose(struct termp *p)
946: {
947:
948: /*
949: * Strong closure: if we have a last-char, spit it out after
950: * checking that we're in the right font mode. This will of
951: * course open a new scope, if applicable.
952: *
953: * Following this, close out any scope that's open.
954: */
955:
1.50 kristaps 956: if ('\0' != p->ps->last) {
957: if (p->ps->lastf != TERMFONT_NONE) {
1.9 kristaps 958: ps_pclose(p);
959: ps_setfont(p, TERMFONT_NONE);
960: }
1.50 kristaps 961: ps_pletter(p, p->ps->last);
962: p->ps->last = '\0';
1.9 kristaps 963: }
964:
1.50 kristaps 965: if ( ! (PS_INLINE & p->ps->flags))
1.9 kristaps 966: return;
967:
968: ps_pclose(p);
969: }
970:
971: static void
1.49 kristaps 972: ps_letter(struct termp *p, int arg)
1.8 kristaps 973: {
1.49 kristaps 974: char cc, c;
975:
976: c = arg >= 128 || arg <= 0 ? '?' : arg;
1.9 kristaps 977:
978: /*
979: * State machine dictates whether to buffer the last character
980: * or not. Basically, encoded words are detected by checking if
981: * we're an "8" and switching on the buffer. Then we put "8" in
982: * our buffer, and on the next charater, flush both character
983: * and buffer. Thus, "regular" words are detected by having a
984: * regular character and a regular buffer character.
985: */
986:
1.50 kristaps 987: if ('\0' == p->ps->last) {
1.8 kristaps 988: assert(8 != c);
1.50 kristaps 989: p->ps->last = c;
1.8 kristaps 990: return;
1.50 kristaps 991: } else if (8 == p->ps->last) {
1.8 kristaps 992: assert(8 != c);
1.50 kristaps 993: p->ps->last = '\0';
1.8 kristaps 994: } else if (8 == c) {
1.50 kristaps 995: assert(8 != p->ps->last);
996: if ('_' == p->ps->last) {
997: if (p->ps->lastf != TERMFONT_UNDER) {
1.9 kristaps 998: ps_pclose(p);
999: ps_setfont(p, TERMFONT_UNDER);
1000: }
1.50 kristaps 1001: } else if (p->ps->lastf != TERMFONT_BOLD) {
1.9 kristaps 1002: ps_pclose(p);
1003: ps_setfont(p, TERMFONT_BOLD);
1004: }
1.50 kristaps 1005: p->ps->last = c;
1.8 kristaps 1006: return;
1007: } else {
1.50 kristaps 1008: if (p->ps->lastf != TERMFONT_NONE) {
1.9 kristaps 1009: ps_pclose(p);
1010: ps_setfont(p, TERMFONT_NONE);
1011: }
1.50 kristaps 1012: cc = p->ps->last;
1013: p->ps->last = c;
1.8 kristaps 1014: c = cc;
1015: }
1016:
1.9 kristaps 1017: ps_pletter(p, c);
1.8 kristaps 1018: }
1019:
1020: static void
1.2 kristaps 1021: ps_advance(struct termp *p, size_t len)
1022: {
1023:
1.9 kristaps 1024: /*
1025: * Advance some spaces. This can probably be made smarter,
1026: * i.e., to have multiple space-separated words in the same
1027: * scope, but this is easier: just close out the current scope
1028: * and readjust our column settings.
1029: */
1.8 kristaps 1030:
1.9 kristaps 1031: ps_fclose(p);
1.50 kristaps 1032: p->ps->pscol += len;
1.2 kristaps 1033: }
1034:
1035: static void
1036: ps_endline(struct termp *p)
1037: {
1.8 kristaps 1038:
1.9 kristaps 1039: /* Close out any scopes we have open: we're at eoln. */
1040:
1041: ps_fclose(p);
1.2 kristaps 1042:
1.9 kristaps 1043: /*
1044: * If we're in the margin, don't try to recalculate our current
1045: * row. XXX: if the column tries to be fancy with multiple
1.59 schwarze 1046: * lines, we'll do nasty stuff.
1.9 kristaps 1047: */
1.2 kristaps 1048:
1.50 kristaps 1049: if (PS_MARGINS & p->ps->flags)
1.29 kristaps 1050: return;
1051:
1052: /* Left-justify. */
1053:
1.50 kristaps 1054: p->ps->pscol = p->ps->left;
1.29 kristaps 1055:
1056: /* If we haven't printed anything, return. */
1057:
1.50 kristaps 1058: if (PS_NEWPAGE & p->ps->flags)
1.2 kristaps 1059: return;
1060:
1.9 kristaps 1061: /*
1062: * Put us down a line. If we're at the page bottom, spit out a
1063: * showpage and restart our row.
1064: */
1065:
1.59 schwarze 1066: if (p->ps->psrow >= p->ps->lineheight + p->ps->bottom) {
1.50 kristaps 1067: p->ps->psrow -= p->ps->lineheight;
1.2 kristaps 1068: return;
1069: }
1070:
1.37 kristaps 1071: ps_closepage(p);
1.1 kristaps 1072: }
1.9 kristaps 1073:
1074: static void
1075: ps_setfont(struct termp *p, enum termfont f)
1076: {
1077:
1.16 kristaps 1078: assert(f < TERMFONT__MAX);
1.50 kristaps 1079: p->ps->lastf = f;
1.59 schwarze 1080:
1.32 kristaps 1081: /*
1082: * If we're still at the top of the page, let the font-setting
1083: * be delayed until we actually have stuff to print.
1084: */
1085:
1.50 kristaps 1086: if (PS_NEWPAGE & p->ps->flags)
1.32 kristaps 1087: return;
1088:
1.37 kristaps 1089: if (TERMTYPE_PS == p->type)
1.59 schwarze 1090: ps_printf(p, "/%s %zu selectfont\n",
1091: fonts[(int)f].name, p->ps->scale);
1.37 kristaps 1092: else
1.59 schwarze 1093: ps_printf(p, "/F%d %zu Tf\n",
1094: (int)f, p->ps->scale);
1.9 kristaps 1095: }
1096:
1.11 kristaps 1097: static size_t
1.49 kristaps 1098: ps_width(const struct termp *p, int c)
1.11 kristaps 1099: {
1100:
1.14 kristaps 1101: if (c <= 32 || c - 32 >= MAXCHAR)
1.61 schwarze 1102: c = 0;
1103: else
1104: c -= 32;
1.14 kristaps 1105:
1.49 kristaps 1106: return((size_t)fonts[(int)TERMFONT_NONE].gly[c].wx);
1.11 kristaps 1107: }
1.19 kristaps 1108:
1.20 kristaps 1109: static double
1.19 kristaps 1110: ps_hspan(const struct termp *p, const struct roffsu *su)
1111: {
1112: double r;
1.59 schwarze 1113:
1.19 kristaps 1114: /*
1115: * All of these measurements are derived by converting from the
1.21 kristaps 1116: * native measurement to AFM units.
1.19 kristaps 1117: */
1118:
1119: switch (su->unit) {
1.59 schwarze 1120: case SCALE_CM:
1.21 kristaps 1121: r = PNT2AFM(p, su->scale * 28.34);
1.19 kristaps 1122: break;
1.59 schwarze 1123: case SCALE_IN:
1.62 schwarze 1124: r = PNT2AFM(p, su->scale * 72.0);
1.19 kristaps 1125: break;
1.59 schwarze 1126: case SCALE_PC:
1.62 schwarze 1127: r = PNT2AFM(p, su->scale * 12.0);
1.19 kristaps 1128: break;
1.59 schwarze 1129: case SCALE_PT:
1.62 schwarze 1130: r = PNT2AFM(p, su->scale * 100.0);
1.19 kristaps 1131: break;
1.59 schwarze 1132: case SCALE_EM:
1.36 kristaps 1133: r = su->scale *
1.59 schwarze 1134: fonts[(int)TERMFONT_NONE].gly[109 - 32].wx;
1.19 kristaps 1135: break;
1.59 schwarze 1136: case SCALE_MM:
1.21 kristaps 1137: r = PNT2AFM(p, su->scale * 2.834);
1.19 kristaps 1138: break;
1.59 schwarze 1139: case SCALE_EN:
1.36 kristaps 1140: r = su->scale *
1.59 schwarze 1141: fonts[(int)TERMFONT_NONE].gly[110 - 32].wx;
1.19 kristaps 1142: break;
1.59 schwarze 1143: case SCALE_VS:
1.50 kristaps 1144: r = su->scale * p->ps->lineheight;
1.19 kristaps 1145: break;
1146: default:
1147: r = su->scale;
1148: break;
1149: }
1150:
1.20 kristaps 1151: return(r);
1.50 kristaps 1152: }
1153:
1154: static void
1155: ps_growbuf(struct termp *p, size_t sz)
1156: {
1157: if (p->ps->psmargcur + sz <= p->ps->psmargsz)
1158: return;
1159:
1160: if (sz < PS_BUFSLOP)
1161: sz = PS_BUFSLOP;
1162:
1163: p->ps->psmargsz += sz;
1.60 schwarze 1164: p->ps->psmarg = mandoc_realloc(p->ps->psmarg, p->ps->psmargsz);
1.19 kristaps 1165: }
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