Annotation of src/usr.bin/mandoc/term_ps.c, Revision 1.42
1.42 ! schwarze 1: /* $OpenBSD: term_ps.c,v 1.41 2015/10/11 21:07:00 schwarze Exp $ */
1.1 schwarze 2: /*
1.17 schwarze 3: * Copyright (c) 2010, 2011 Kristaps Dzonsons <kristaps@bsd.lv>
1.37 schwarze 4: * Copyright (c) 2014, 2015 Ingo Schwarze <schwarze@openbsd.org>
1.1 schwarze 5: *
6: * Permission to use, copy, modify, and distribute this software for any
7: * purpose with or without fee is hereby granted, provided that the above
8: * copyright notice and this permission notice appear in all copies.
9: *
1.38 schwarze 10: * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHORS DISCLAIM ALL WARRANTIES
1.1 schwarze 11: * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
1.38 schwarze 12: * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR
1.1 schwarze 13: * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
14: * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
15: * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
16: * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
17: */
1.11 deraadt 18: #include <sys/types.h>
1.1 schwarze 19:
20: #include <assert.h>
1.41 schwarze 21: #include <err.h>
1.1 schwarze 22: #include <stdarg.h>
1.5 schwarze 23: #include <stdint.h>
1.1 schwarze 24: #include <stdio.h>
25: #include <stdlib.h>
26: #include <string.h>
1.6 schwarze 27: #include <unistd.h>
1.1 schwarze 28:
1.21 schwarze 29: #include "mandoc_aux.h"
1.1 schwarze 30: #include "out.h"
1.35 schwarze 31: #include "term.h"
1.38 schwarze 32: #include "manconf.h"
1.1 schwarze 33: #include "main.h"
34:
1.17 schwarze 35: /* These work the buffer used by the header and footer. */
36: #define PS_BUFSLOP 128
37:
1.6 schwarze 38: /* Convert PostScript point "x" to an AFM unit. */
1.24 schwarze 39: #define PNT2AFM(p, x) \
1.17 schwarze 40: (size_t)((double)(x) * (1000.0 / (double)(p)->ps->scale))
1.6 schwarze 41:
42: /* Convert an AFM unit "x" to a PostScript points */
1.24 schwarze 43: #define AFM2PNT(p, x) \
1.17 schwarze 44: ((double)(x) / (1000.0 / (double)(p)->ps->scale))
1.6 schwarze 45:
1.4 schwarze 46: struct glyph {
1.7 schwarze 47: unsigned short wx; /* WX in AFM */
1.4 schwarze 48: };
49:
50: struct font {
51: const char *name; /* FontName in AFM */
52: #define MAXCHAR 95 /* total characters we can handle */
53: struct glyph gly[MAXCHAR]; /* glyph metrics */
54: };
1.1 schwarze 55:
1.17 schwarze 56: struct termp_ps {
57: int flags;
58: #define PS_INLINE (1 << 0) /* we're in a word */
59: #define PS_MARGINS (1 << 1) /* we're in the margins */
60: #define PS_NEWPAGE (1 << 2) /* new page, no words yet */
1.32 schwarze 61: #define PS_BACKSP (1 << 3) /* last character was backspace */
1.17 schwarze 62: size_t pscol; /* visible column (AFM units) */
1.37 schwarze 63: size_t pscolnext; /* used for overstrike */
1.17 schwarze 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 */
1.32 schwarze 68: char last; /* last non-backspace seen */
1.17 schwarze 69: enum termfont lastf; /* last set font */
1.29 schwarze 70: enum termfont nextf; /* building next font here */
1.17 schwarze 71: size_t scale; /* font scaling factor */
72: size_t pages; /* number of pages shown */
73: size_t lineheight; /* line height (AFM units) */
74: size_t top; /* body top (AFM units) */
75: size_t bottom; /* body bottom (AFM units) */
76: size_t height; /* page height (AFM units */
77: size_t width; /* page width (AFM units) */
1.22 schwarze 78: size_t lastwidth; /* page width before last ll */
1.17 schwarze 79: size_t left; /* body left (AFM units) */
80: size_t header; /* header pos (AFM units) */
81: size_t footer; /* footer pos (AFM units) */
1.24 schwarze 82: size_t pdfbytes; /* current output byte */
1.17 schwarze 83: size_t pdflastpg; /* byte of last page mark */
84: size_t pdfbody; /* start of body object */
85: size_t *pdfobjs; /* table of object offsets */
86: size_t pdfobjsz; /* size of pdfobjs */
87: };
88:
1.39 schwarze 89: static int ps_hspan(const struct termp *,
1.17 schwarze 90: const struct roffsu *);
91: static size_t ps_width(const struct termp *, int);
92: static void ps_advance(struct termp *, size_t);
93: static void ps_begin(struct termp *);
94: static void ps_closepage(struct termp *);
95: static void ps_end(struct termp *);
96: static void ps_endline(struct termp *);
97: static void ps_fclose(struct termp *);
98: static void ps_growbuf(struct termp *, size_t);
99: static void ps_letter(struct termp *, int);
100: static void ps_pclose(struct termp *);
101: static void ps_pletter(struct termp *, int);
102: static void ps_printf(struct termp *, const char *, ...);
103: static void ps_putchar(struct termp *, char);
104: static void ps_setfont(struct termp *, enum termfont);
1.39 schwarze 105: static void ps_setwidth(struct termp *, int, int);
1.38 schwarze 106: static struct termp *pspdf_alloc(const struct mchars *,
107: const struct manoutput *);
1.17 schwarze 108: static void pdf_obj(struct termp *, size_t);
109:
1.4 schwarze 110: /*
111: * We define, for the time being, three fonts: bold, oblique/italic, and
112: * normal (roman). The following table hard-codes the font metrics for
113: * ASCII, i.e., 32--127.
114: */
115:
116: static const struct font fonts[TERMFONT__MAX] = {
1.6 schwarze 117: { "Times-Roman", {
118: { 250 },
119: { 333 },
120: { 408 },
121: { 500 },
122: { 500 },
123: { 833 },
124: { 778 },
125: { 333 },
126: { 333 },
127: { 333 },
128: { 500 },
129: { 564 },
130: { 250 },
131: { 333 },
132: { 250 },
133: { 278 },
134: { 500 },
135: { 500 },
136: { 500 },
137: { 500 },
138: { 500 },
139: { 500 },
140: { 500 },
141: { 500 },
142: { 500 },
143: { 500 },
144: { 278 },
145: { 278 },
146: { 564 },
147: { 564 },
148: { 564 },
149: { 444 },
150: { 921 },
151: { 722 },
152: { 667 },
153: { 667 },
154: { 722 },
155: { 611 },
156: { 556 },
157: { 722 },
158: { 722 },
159: { 333 },
160: { 389 },
161: { 722 },
162: { 611 },
163: { 889 },
164: { 722 },
165: { 722 },
166: { 556 },
167: { 722 },
168: { 667 },
169: { 556 },
170: { 611 },
171: { 722 },
172: { 722 },
173: { 944 },
174: { 722 },
175: { 722 },
176: { 611 },
177: { 333 },
178: { 278 },
179: { 333 },
180: { 469 },
181: { 500 },
182: { 333 },
183: { 444 },
184: { 500 },
185: { 444 },
186: { 500},
187: { 444},
188: { 333},
189: { 500},
190: { 500},
191: { 278},
192: { 278},
193: { 500},
194: { 278},
195: { 778},
196: { 500},
197: { 500},
198: { 500},
199: { 500},
200: { 333},
201: { 389},
202: { 278},
203: { 500},
204: { 500},
205: { 722},
206: { 500},
207: { 500},
208: { 444},
209: { 480},
210: { 200},
211: { 480},
212: { 541},
1.4 schwarze 213: } },
1.6 schwarze 214: { "Times-Bold", {
215: { 250 },
216: { 333 },
217: { 555 },
218: { 500 },
219: { 500 },
220: { 1000 },
221: { 833 },
222: { 333 },
223: { 333 },
224: { 333 },
225: { 500 },
226: { 570 },
227: { 250 },
228: { 333 },
229: { 250 },
230: { 278 },
231: { 500 },
232: { 500 },
233: { 500 },
234: { 500 },
235: { 500 },
236: { 500 },
237: { 500 },
238: { 500 },
239: { 500 },
240: { 500 },
241: { 333 },
242: { 333 },
243: { 570 },
244: { 570 },
245: { 570 },
246: { 500 },
247: { 930 },
248: { 722 },
249: { 667 },
250: { 722 },
251: { 722 },
252: { 667 },
253: { 611 },
254: { 778 },
255: { 778 },
256: { 389 },
257: { 500 },
258: { 778 },
259: { 667 },
260: { 944 },
261: { 722 },
262: { 778 },
263: { 611 },
264: { 778 },
265: { 722 },
266: { 556 },
267: { 667 },
268: { 722 },
269: { 722 },
270: { 1000 },
271: { 722 },
272: { 722 },
273: { 667 },
274: { 333 },
275: { 278 },
276: { 333 },
277: { 581 },
278: { 500 },
279: { 333 },
280: { 500 },
281: { 556 },
282: { 444 },
283: { 556 },
284: { 444 },
285: { 333 },
286: { 500 },
287: { 556 },
288: { 278 },
289: { 333 },
290: { 556 },
291: { 278 },
292: { 833 },
293: { 556 },
294: { 500 },
295: { 556 },
296: { 556 },
297: { 444 },
298: { 389 },
299: { 333 },
300: { 556 },
301: { 500 },
302: { 722 },
303: { 500 },
304: { 500 },
305: { 444 },
306: { 394 },
307: { 220 },
308: { 394 },
309: { 520 },
1.4 schwarze 310: } },
1.6 schwarze 311: { "Times-Italic", {
312: { 250 },
313: { 333 },
314: { 420 },
315: { 500 },
316: { 500 },
317: { 833 },
318: { 778 },
319: { 333 },
320: { 333 },
321: { 333 },
322: { 500 },
323: { 675 },
324: { 250 },
325: { 333 },
326: { 250 },
327: { 278 },
328: { 500 },
329: { 500 },
330: { 500 },
331: { 500 },
332: { 500 },
333: { 500 },
334: { 500 },
335: { 500 },
336: { 500 },
337: { 500 },
338: { 333 },
339: { 333 },
340: { 675 },
341: { 675 },
342: { 675 },
343: { 500 },
344: { 920 },
345: { 611 },
346: { 611 },
347: { 667 },
348: { 722 },
349: { 611 },
350: { 611 },
351: { 722 },
352: { 722 },
353: { 333 },
354: { 444 },
355: { 667 },
356: { 556 },
357: { 833 },
358: { 667 },
359: { 722 },
360: { 611 },
361: { 722 },
362: { 611 },
363: { 500 },
364: { 556 },
365: { 722 },
366: { 611 },
367: { 833 },
368: { 611 },
369: { 556 },
370: { 556 },
371: { 389 },
372: { 278 },
373: { 389 },
374: { 422 },
375: { 500 },
376: { 333 },
377: { 500 },
378: { 500 },
379: { 444 },
380: { 500 },
381: { 444 },
382: { 278 },
383: { 500 },
384: { 500 },
385: { 278 },
386: { 278 },
387: { 444 },
388: { 278 },
389: { 722 },
390: { 500 },
391: { 500 },
392: { 500 },
393: { 500 },
394: { 389 },
395: { 389 },
396: { 278 },
397: { 500 },
398: { 444 },
399: { 667 },
400: { 444 },
401: { 444 },
402: { 389 },
403: { 400 },
404: { 275 },
405: { 400 },
406: { 541 },
1.4 schwarze 407: } },
1.29 schwarze 408: { "Times-BoldItalic", {
409: { 250 },
410: { 389 },
411: { 555 },
412: { 500 },
413: { 500 },
414: { 833 },
415: { 778 },
416: { 333 },
417: { 333 },
418: { 333 },
419: { 500 },
420: { 570 },
421: { 250 },
422: { 333 },
423: { 250 },
424: { 278 },
425: { 500 },
426: { 500 },
427: { 500 },
428: { 500 },
429: { 500 },
430: { 500 },
431: { 500 },
432: { 500 },
433: { 500 },
434: { 500 },
435: { 333 },
436: { 333 },
437: { 570 },
438: { 570 },
439: { 570 },
440: { 500 },
441: { 832 },
442: { 667 },
443: { 667 },
444: { 667 },
445: { 722 },
446: { 667 },
447: { 667 },
448: { 722 },
449: { 778 },
450: { 389 },
451: { 500 },
452: { 667 },
453: { 611 },
454: { 889 },
455: { 722 },
456: { 722 },
457: { 611 },
458: { 722 },
459: { 667 },
460: { 556 },
461: { 611 },
462: { 722 },
463: { 667 },
464: { 889 },
465: { 667 },
466: { 611 },
467: { 611 },
468: { 333 },
469: { 278 },
470: { 333 },
471: { 570 },
472: { 500 },
473: { 333 },
474: { 500 },
475: { 500 },
476: { 444 },
477: { 500 },
478: { 444 },
479: { 333 },
480: { 500 },
481: { 556 },
482: { 278 },
483: { 278 },
484: { 500 },
485: { 278 },
486: { 778 },
487: { 556 },
488: { 500 },
489: { 500 },
490: { 500 },
491: { 389 },
492: { 389 },
493: { 278 },
494: { 556 },
495: { 444 },
496: { 667 },
497: { 500 },
498: { 444 },
499: { 389 },
500: { 348 },
501: { 220 },
502: { 348 },
503: { 570 },
504: } },
1.4 schwarze 505: };
506:
1.7 schwarze 507: void *
1.38 schwarze 508: pdf_alloc(const struct mchars *mchars, const struct manoutput *outopts)
1.7 schwarze 509: {
510: struct termp *p;
511:
1.33 schwarze 512: if (NULL != (p = pspdf_alloc(mchars, outopts)))
1.8 schwarze 513: p->type = TERMTYPE_PDF;
1.7 schwarze 514:
1.40 schwarze 515: return p;
1.7 schwarze 516: }
1.1 schwarze 517:
518: void *
1.38 schwarze 519: ps_alloc(const struct mchars *mchars, const struct manoutput *outopts)
1.1 schwarze 520: {
521: struct termp *p;
1.7 schwarze 522:
1.33 schwarze 523: if (NULL != (p = pspdf_alloc(mchars, outopts)))
1.8 schwarze 524: p->type = TERMTYPE_PS;
1.7 schwarze 525:
1.40 schwarze 526: return p;
1.7 schwarze 527: }
528:
529: static struct termp *
1.38 schwarze 530: pspdf_alloc(const struct mchars *mchars, const struct manoutput *outopts)
1.7 schwarze 531: {
532: struct termp *p;
1.18 schwarze 533: unsigned int pagex, pagey;
534: size_t marginx, marginy, lineheight;
1.6 schwarze 535: const char *pp;
1.1 schwarze 536:
1.17 schwarze 537: p = mandoc_calloc(1, sizeof(struct termp));
1.33 schwarze 538: p->symtab = mchars;
1.17 schwarze 539: p->enc = TERMENC_ASCII;
1.36 schwarze 540: p->fontq = mandoc_reallocarray(NULL,
541: (p->fontsz = 8), sizeof(enum termfont));
542: p->fontq[0] = p->fontl = TERMFONT_NONE;
1.17 schwarze 543: p->ps = mandoc_calloc(1, sizeof(struct termp_ps));
1.1 schwarze 544:
1.6 schwarze 545: p->advance = ps_advance;
1.1 schwarze 546: p->begin = ps_begin;
547: p->end = ps_end;
548: p->endline = ps_endline;
1.6 schwarze 549: p->hspan = ps_hspan;
550: p->letter = ps_letter;
1.22 schwarze 551: p->setwidth = ps_setwidth;
1.3 schwarze 552: p->width = ps_width;
1.24 schwarze 553:
1.6 schwarze 554: /* Default to US letter (millimetres). */
555:
556: pagex = 216;
557: pagey = 279;
558:
559: /*
560: * The ISO-269 paper sizes can be calculated automatically, but
561: * it would require bringing in -lm for pow() and I'd rather not
562: * do that. So just do it the easy way for now. Since this
563: * only happens once, I'm not terribly concerned.
564: */
565:
1.38 schwarze 566: pp = outopts->paper;
1.6 schwarze 567: if (pp && strcasecmp(pp, "letter")) {
568: if (0 == strcasecmp(pp, "a3")) {
569: pagex = 297;
570: pagey = 420;
571: } else if (0 == strcasecmp(pp, "a4")) {
572: pagex = 210;
573: pagey = 297;
574: } else if (0 == strcasecmp(pp, "a5")) {
575: pagex = 148;
576: pagey = 210;
577: } else if (0 == strcasecmp(pp, "legal")) {
578: pagex = 216;
579: pagey = 356;
1.18 schwarze 580: } else if (2 != sscanf(pp, "%ux%u", &pagex, &pagey))
1.41 schwarze 581: warnx("%s: Unknown paper", pp);
1.19 schwarze 582: }
1.6 schwarze 583:
1.24 schwarze 584: /*
1.6 schwarze 585: * This MUST be defined before any PNT2AFM or AFM2PNT
586: * calculations occur.
587: */
588:
1.17 schwarze 589: p->ps->scale = 11;
1.6 schwarze 590:
591: /* Remember millimetres -> AFM units. */
592:
593: pagex = PNT2AFM(p, ((double)pagex * 2.834));
594: pagey = PNT2AFM(p, ((double)pagey * 2.834));
595:
596: /* Margins are 1/9 the page x and y. */
597:
1.24 schwarze 598: marginx = (size_t)((double)pagex / 9.0);
599: marginy = (size_t)((double)pagey / 9.0);
1.6 schwarze 600:
601: /* Line-height is 1.4em. */
602:
1.17 schwarze 603: lineheight = PNT2AFM(p, ((double)p->ps->scale * 1.4));
1.4 schwarze 604:
1.22 schwarze 605: p->ps->width = p->ps->lastwidth = (size_t)pagex;
1.18 schwarze 606: p->ps->height = (size_t)pagey;
1.17 schwarze 607: p->ps->header = pagey - (marginy / 2) - (lineheight / 2);
608: p->ps->top = pagey - marginy;
609: p->ps->footer = (marginy / 2) - (lineheight / 2);
610: p->ps->bottom = marginy;
611: p->ps->left = marginx;
612: p->ps->lineheight = lineheight;
1.4 schwarze 613:
1.6 schwarze 614: p->defrmargin = pagex - (marginx * 2);
1.40 schwarze 615: return p;
1.22 schwarze 616: }
617:
618: static void
1.39 schwarze 619: ps_setwidth(struct termp *p, int iop, int width)
1.22 schwarze 620: {
621: size_t lastwidth;
622:
623: lastwidth = p->ps->width;
1.34 schwarze 624: if (iop > 0)
1.23 schwarze 625: p->ps->width += width;
1.34 schwarze 626: else if (iop == 0)
1.39 schwarze 627: p->ps->width = width ? (size_t)width : p->ps->lastwidth;
628: else if (p->ps->width > (size_t)width)
1.23 schwarze 629: p->ps->width -= width;
630: else
1.34 schwarze 631: p->ps->width = 0;
1.22 schwarze 632: p->ps->lastwidth = lastwidth;
1.1 schwarze 633: }
634:
635: void
1.7 schwarze 636: pspdf_free(void *arg)
1.1 schwarze 637: {
638: struct termp *p;
639:
640: p = (struct termp *)arg;
641:
1.17 schwarze 642: if (p->ps->psmarg)
643: free(p->ps->psmarg);
644: if (p->ps->pdfobjs)
645: free(p->ps->pdfobjs);
1.1 schwarze 646:
1.17 schwarze 647: free(p->ps);
1.1 schwarze 648: term_free(p);
649: }
650:
651: static void
652: ps_printf(struct termp *p, const char *fmt, ...)
653: {
654: va_list ap;
1.7 schwarze 655: int pos, len;
1.1 schwarze 656:
657: va_start(ap, fmt);
658:
659: /*
660: * If we're running in regular mode, then pipe directly into
661: * vprintf(). If we're processing margins, then push the data
662: * into our growable margin buffer.
663: */
664:
1.17 schwarze 665: if ( ! (PS_MARGINS & p->ps->flags)) {
1.7 schwarze 666: len = vprintf(fmt, ap);
1.1 schwarze 667: va_end(ap);
1.24 schwarze 668: p->ps->pdfbytes += len < 0 ? 0 : (size_t)len;
1.1 schwarze 669: return;
670: }
671:
1.24 schwarze 672: /*
1.1 schwarze 673: * XXX: I assume that the in-margin print won't exceed
674: * PS_BUFSLOP (128 bytes), which is reasonable but still an
675: * assumption that will cause pukeage if it's not the case.
676: */
677:
1.9 schwarze 678: ps_growbuf(p, PS_BUFSLOP);
1.1 schwarze 679:
1.17 schwarze 680: pos = (int)p->ps->psmargcur;
1.19 schwarze 681: vsnprintf(&p->ps->psmarg[pos], PS_BUFSLOP, fmt, ap);
1.1 schwarze 682:
683: va_end(ap);
1.7 schwarze 684:
1.17 schwarze 685: p->ps->psmargcur = strlen(p->ps->psmarg);
1.1 schwarze 686: }
687:
688: static void
689: ps_putchar(struct termp *p, char c)
690: {
691: int pos;
692:
693: /* See ps_printf(). */
694:
1.17 schwarze 695: if ( ! (PS_MARGINS & p->ps->flags)) {
1.1 schwarze 696: putchar(c);
1.17 schwarze 697: p->ps->pdfbytes++;
1.1 schwarze 698: return;
699: }
700:
1.9 schwarze 701: ps_growbuf(p, 2);
1.1 schwarze 702:
1.17 schwarze 703: pos = (int)p->ps->psmargcur++;
704: p->ps->psmarg[pos++] = c;
705: p->ps->psmarg[pos] = '\0';
1.1 schwarze 706: }
707:
1.7 schwarze 708: static void
1.8 schwarze 709: pdf_obj(struct termp *p, size_t obj)
710: {
711:
712: assert(obj > 0);
713:
1.17 schwarze 714: if ((obj - 1) >= p->ps->pdfobjsz) {
715: p->ps->pdfobjsz = obj + 128;
1.25 schwarze 716: p->ps->pdfobjs = mandoc_reallocarray(p->ps->pdfobjs,
717: p->ps->pdfobjsz, sizeof(size_t));
1.8 schwarze 718: }
719:
1.17 schwarze 720: p->ps->pdfobjs[(int)obj - 1] = p->ps->pdfbytes;
1.8 schwarze 721: ps_printf(p, "%zu 0 obj\n", obj);
722: }
723:
724: static void
1.7 schwarze 725: ps_closepage(struct termp *p)
726: {
727: int i;
1.8 schwarze 728: size_t len, base;
729:
730: /*
731: * Close out a page that we've already flushed to output. In
732: * PostScript, we simply note that the page must be showed. In
733: * PDF, we must now create the Length, Resource, and Page node
734: * for the page contents.
735: */
1.7 schwarze 736:
1.17 schwarze 737: assert(p->ps->psmarg && p->ps->psmarg[0]);
738: ps_printf(p, "%s", p->ps->psmarg);
1.7 schwarze 739:
1.8 schwarze 740: if (TERMTYPE_PS != p->type) {
1.7 schwarze 741: ps_printf(p, "ET\n");
1.8 schwarze 742:
1.17 schwarze 743: len = p->ps->pdfbytes - p->ps->pdflastpg;
744: base = p->ps->pages * 4 + p->ps->pdfbody;
1.8 schwarze 745:
746: ps_printf(p, "endstream\nendobj\n");
747:
748: /* Length of content. */
749: pdf_obj(p, base + 1);
750: ps_printf(p, "%zu\nendobj\n", len);
751:
752: /* Resource for content. */
753: pdf_obj(p, base + 2);
754: ps_printf(p, "<<\n/ProcSet [/PDF /Text]\n");
1.7 schwarze 755: ps_printf(p, "/Font <<\n");
1.24 schwarze 756: for (i = 0; i < (int)TERMFONT__MAX; i++)
1.7 schwarze 757: ps_printf(p, "/F%d %d 0 R\n", i, 3 + i);
1.8 schwarze 758: ps_printf(p, ">>\n>>\n");
759:
760: /* Page node. */
761: pdf_obj(p, base + 3);
1.7 schwarze 762: ps_printf(p, "<<\n");
763: ps_printf(p, "/Type /Page\n");
764: ps_printf(p, "/Parent 2 0 R\n");
1.8 schwarze 765: ps_printf(p, "/Resources %zu 0 R\n", base + 2);
766: ps_printf(p, "/Contents %zu 0 R\n", base);
767: ps_printf(p, ">>\nendobj\n");
768: } else
769: ps_printf(p, "showpage\n");
1.7 schwarze 770:
1.17 schwarze 771: p->ps->pages++;
772: p->ps->psrow = p->ps->top;
773: assert( ! (PS_NEWPAGE & p->ps->flags));
774: p->ps->flags |= PS_NEWPAGE;
1.7 schwarze 775: }
776:
1.1 schwarze 777: static void
778: ps_end(struct termp *p)
779: {
1.8 schwarze 780: size_t i, xref, base;
1.1 schwarze 781:
782: /*
783: * At the end of the file, do one last showpage. This is the
784: * same behaviour as groff(1) and works for multiple pages as
785: * well as just one.
786: */
787:
1.17 schwarze 788: if ( ! (PS_NEWPAGE & p->ps->flags)) {
789: assert(0 == p->ps->flags);
790: assert('\0' == p->ps->last);
1.7 schwarze 791: ps_closepage(p);
1.6 schwarze 792: }
1.4 schwarze 793:
1.7 schwarze 794: if (TERMTYPE_PS == p->type) {
795: ps_printf(p, "%%%%Trailer\n");
1.17 schwarze 796: ps_printf(p, "%%%%Pages: %zu\n", p->ps->pages);
1.7 schwarze 797: ps_printf(p, "%%%%EOF\n");
798: return;
1.24 schwarze 799: }
1.7 schwarze 800:
1.8 schwarze 801: pdf_obj(p, 2);
802: ps_printf(p, "<<\n/Type /Pages\n");
1.7 schwarze 803: ps_printf(p, "/MediaBox [0 0 %zu %zu]\n",
1.17 schwarze 804: (size_t)AFM2PNT(p, p->ps->width),
805: (size_t)AFM2PNT(p, p->ps->height));
1.7 schwarze 806:
1.17 schwarze 807: ps_printf(p, "/Count %zu\n", p->ps->pages);
1.7 schwarze 808: ps_printf(p, "/Kids [");
809:
1.17 schwarze 810: for (i = 0; i < p->ps->pages; i++)
1.24 schwarze 811: ps_printf(p, " %zu 0 R", i * 4 + p->ps->pdfbody + 3);
1.8 schwarze 812:
1.24 schwarze 813: base = (p->ps->pages - 1) * 4 + p->ps->pdfbody + 4;
1.8 schwarze 814:
815: ps_printf(p, "]\n>>\nendobj\n");
816: pdf_obj(p, base);
1.7 schwarze 817: ps_printf(p, "<<\n");
818: ps_printf(p, "/Type /Catalog\n");
819: ps_printf(p, "/Pages 2 0 R\n");
820: ps_printf(p, ">>\n");
1.17 schwarze 821: xref = p->ps->pdfbytes;
1.7 schwarze 822: ps_printf(p, "xref\n");
1.8 schwarze 823: ps_printf(p, "0 %zu\n", base + 1);
824: ps_printf(p, "0000000000 65535 f \n");
825:
826: for (i = 0; i < base; i++)
1.24 schwarze 827: ps_printf(p, "%.10zu 00000 n \n",
828: p->ps->pdfobjs[(int)i]);
1.8 schwarze 829:
1.7 schwarze 830: ps_printf(p, "trailer\n");
831: ps_printf(p, "<<\n");
1.8 schwarze 832: ps_printf(p, "/Size %zu\n", base + 1);
833: ps_printf(p, "/Root %zu 0 R\n", base);
1.7 schwarze 834: ps_printf(p, "/Info 1 0 R\n");
835: ps_printf(p, ">>\n");
836: ps_printf(p, "startxref\n");
837: ps_printf(p, "%zu\n", xref);
838: ps_printf(p, "%%%%EOF\n");
1.1 schwarze 839: }
840:
841: static void
842: ps_begin(struct termp *p)
843: {
1.4 schwarze 844: int i;
1.1 schwarze 845:
1.24 schwarze 846: /*
1.2 schwarze 847: * Print margins into margin buffer. Nothing gets output to the
848: * screen yet, so we don't need to initialise the primary state.
1.1 schwarze 849: */
850:
1.17 schwarze 851: if (p->ps->psmarg) {
852: assert(p->ps->psmargsz);
853: p->ps->psmarg[0] = '\0';
1.1 schwarze 854: }
855:
1.17 schwarze 856: /*p->ps->pdfbytes = 0;*/
857: p->ps->psmargcur = 0;
858: p->ps->flags = PS_MARGINS;
859: p->ps->pscol = p->ps->left;
860: p->ps->psrow = p->ps->header;
1.1 schwarze 861:
1.2 schwarze 862: ps_setfont(p, TERMFONT_NONE);
1.1 schwarze 863:
864: (*p->headf)(p, p->argf);
865: (*p->endline)(p);
866:
1.17 schwarze 867: p->ps->pscol = p->ps->left;
868: p->ps->psrow = p->ps->footer;
1.1 schwarze 869:
870: (*p->footf)(p, p->argf);
871: (*p->endline)(p);
872:
1.17 schwarze 873: p->ps->flags &= ~PS_MARGINS;
1.2 schwarze 874:
1.17 schwarze 875: assert(0 == p->ps->flags);
876: assert(p->ps->psmarg);
877: assert('\0' != p->ps->psmarg[0]);
1.1 schwarze 878:
1.24 schwarze 879: /*
1.2 schwarze 880: * Print header and initialise page state. Following this,
881: * stuff gets printed to the screen, so make sure we're sane.
882: */
883:
1.7 schwarze 884: if (TERMTYPE_PS == p->type) {
885: ps_printf(p, "%%!PS-Adobe-3.0\n");
886: ps_printf(p, "%%%%DocumentData: Clean7Bit\n");
887: ps_printf(p, "%%%%Orientation: Portrait\n");
888: ps_printf(p, "%%%%Pages: (atend)\n");
889: ps_printf(p, "%%%%PageOrder: Ascend\n");
890: ps_printf(p, "%%%%DocumentMedia: "
1.24 schwarze 891: "Default %zu %zu 0 () ()\n",
892: (size_t)AFM2PNT(p, p->ps->width),
893: (size_t)AFM2PNT(p, p->ps->height));
1.7 schwarze 894: ps_printf(p, "%%%%DocumentNeededResources: font");
1.4 schwarze 895:
1.7 schwarze 896: for (i = 0; i < (int)TERMFONT__MAX; i++)
897: ps_printf(p, " %s", fonts[i].name);
898:
899: ps_printf(p, "\n%%%%EndComments\n");
900: } else {
901: ps_printf(p, "%%PDF-1.1\n");
1.8 schwarze 902: pdf_obj(p, 1);
1.7 schwarze 903: ps_printf(p, "<<\n");
904: ps_printf(p, ">>\n");
905: ps_printf(p, "endobj\n");
906:
907: for (i = 0; i < (int)TERMFONT__MAX; i++) {
1.8 schwarze 908: pdf_obj(p, (size_t)i + 3);
1.7 schwarze 909: ps_printf(p, "<<\n");
910: ps_printf(p, "/Type /Font\n");
911: ps_printf(p, "/Subtype /Type1\n");
1.20 schwarze 912: ps_printf(p, "/Name /F%d\n", i);
1.7 schwarze 913: ps_printf(p, "/BaseFont /%s\n", fonts[i].name);
914: ps_printf(p, ">>\n");
915: }
916: }
917:
1.17 schwarze 918: p->ps->pdfbody = (size_t)TERMFONT__MAX + 3;
919: p->ps->pscol = p->ps->left;
920: p->ps->psrow = p->ps->top;
921: p->ps->flags |= PS_NEWPAGE;
1.6 schwarze 922: ps_setfont(p, TERMFONT_NONE);
1.1 schwarze 923: }
924:
925: static void
1.4 schwarze 926: ps_pletter(struct termp *p, int c)
1.1 schwarze 927: {
1.4 schwarze 928: int f;
1.6 schwarze 929:
930: /*
931: * If we haven't opened a page context, then output that we're
932: * in a new page and make sure the font is correctly set.
933: */
934:
1.17 schwarze 935: if (PS_NEWPAGE & p->ps->flags) {
1.7 schwarze 936: if (TERMTYPE_PS == p->type) {
1.24 schwarze 937: ps_printf(p, "%%%%Page: %zu %zu\n",
938: p->ps->pages + 1, p->ps->pages + 1);
939: ps_printf(p, "/%s %zu selectfont\n",
940: fonts[(int)p->ps->lastf].name,
941: p->ps->scale);
1.7 schwarze 942: } else {
1.24 schwarze 943: pdf_obj(p, p->ps->pdfbody +
944: p->ps->pages * 4);
1.7 schwarze 945: ps_printf(p, "<<\n");
1.24 schwarze 946: ps_printf(p, "/Length %zu 0 R\n",
947: p->ps->pdfbody + 1 + p->ps->pages * 4);
1.7 schwarze 948: ps_printf(p, ">>\nstream\n");
949: }
1.17 schwarze 950: p->ps->pdflastpg = p->ps->pdfbytes;
951: p->ps->flags &= ~PS_NEWPAGE;
1.6 schwarze 952: }
1.24 schwarze 953:
1.2 schwarze 954: /*
955: * If we're not in a PostScript "word" context, then open one
956: * now at the current cursor.
957: */
958:
1.17 schwarze 959: if ( ! (PS_INLINE & p->ps->flags)) {
1.7 schwarze 960: if (TERMTYPE_PS != p->type) {
1.24 schwarze 961: ps_printf(p, "BT\n/F%d %zu Tf\n",
962: (int)p->ps->lastf, p->ps->scale);
1.7 schwarze 963: ps_printf(p, "%.3f %.3f Td\n(",
1.24 schwarze 964: AFM2PNT(p, p->ps->pscol),
965: AFM2PNT(p, p->ps->psrow));
1.7 schwarze 966: } else
1.24 schwarze 967: ps_printf(p, "%.3f %.3f moveto\n(",
968: AFM2PNT(p, p->ps->pscol),
969: AFM2PNT(p, p->ps->psrow));
1.17 schwarze 970: p->ps->flags |= PS_INLINE;
1.1 schwarze 971: }
972:
1.17 schwarze 973: assert( ! (PS_NEWPAGE & p->ps->flags));
1.6 schwarze 974:
1.1 schwarze 975: /*
976: * We need to escape these characters as per the PostScript
977: * specification. We would also escape non-graphable characters
978: * (like tabs), but none of them would get to this point and
979: * it's superfluous to abort() on them.
980: */
981:
982: switch (c) {
1.24 schwarze 983: case '(':
984: case ')':
985: case '\\':
1.1 schwarze 986: ps_putchar(p, '\\');
987: break;
988: default:
989: break;
990: }
991:
992: /* Write the character and adjust where we are on the page. */
1.2 schwarze 993:
1.17 schwarze 994: f = (int)p->ps->lastf;
1.4 schwarze 995:
1.26 schwarze 996: if (c <= 32 || c - 32 >= MAXCHAR)
997: c = 32;
1.4 schwarze 998:
1.6 schwarze 999: ps_putchar(p, (char)c);
1.4 schwarze 1000: c -= 32;
1.17 schwarze 1001: p->ps->pscol += (size_t)fonts[f].gly[c].wx;
1.1 schwarze 1002: }
1003:
1004: static void
1.2 schwarze 1005: ps_pclose(struct termp *p)
1006: {
1007:
1.24 schwarze 1008: /*
1.2 schwarze 1009: * Spit out that we're exiting a word context (this is a
1010: * "partial close" because we don't check the last-char buffer
1011: * or anything).
1012: */
1013:
1.17 schwarze 1014: if ( ! (PS_INLINE & p->ps->flags))
1.2 schwarze 1015: return;
1.24 schwarze 1016:
1.7 schwarze 1017: if (TERMTYPE_PS != p->type) {
1018: ps_printf(p, ") Tj\nET\n");
1019: } else
1020: ps_printf(p, ") show\n");
1021:
1.17 schwarze 1022: p->ps->flags &= ~PS_INLINE;
1.2 schwarze 1023: }
1024:
1025: static void
1026: ps_fclose(struct termp *p)
1027: {
1028:
1029: /*
1030: * Strong closure: if we have a last-char, spit it out after
1031: * checking that we're in the right font mode. This will of
1032: * course open a new scope, if applicable.
1033: *
1034: * Following this, close out any scope that's open.
1035: */
1036:
1.29 schwarze 1037: if (p->ps->last != '\0') {
1.32 schwarze 1038: assert( ! (p->ps->flags & PS_BACKSP));
1.29 schwarze 1039: if (p->ps->nextf != p->ps->lastf) {
1.2 schwarze 1040: ps_pclose(p);
1.29 schwarze 1041: ps_setfont(p, p->ps->nextf);
1.2 schwarze 1042: }
1.29 schwarze 1043: p->ps->nextf = TERMFONT_NONE;
1.17 schwarze 1044: ps_pletter(p, p->ps->last);
1045: p->ps->last = '\0';
1.2 schwarze 1046: }
1047:
1.17 schwarze 1048: if ( ! (PS_INLINE & p->ps->flags))
1.2 schwarze 1049: return;
1050:
1051: ps_pclose(p);
1052: }
1053:
1054: static void
1.17 schwarze 1055: ps_letter(struct termp *p, int arg)
1.2 schwarze 1056: {
1.37 schwarze 1057: size_t savecol, wx;
1.30 schwarze 1058: char c;
1.17 schwarze 1059:
1060: c = arg >= 128 || arg <= 0 ? '?' : arg;
1.2 schwarze 1061:
1062: /*
1.32 schwarze 1063: * When receiving a backspace, merely flag it.
1064: * We don't know yet whether it is
1065: * a font instruction or an overstrike.
1.2 schwarze 1066: */
1067:
1.32 schwarze 1068: if (c == '\b') {
1.29 schwarze 1069: assert(p->ps->last != '\0');
1.32 schwarze 1070: assert( ! (p->ps->flags & PS_BACKSP));
1071: p->ps->flags |= PS_BACKSP;
1072: return;
1073: }
1074:
1075: /*
1076: * Decode font instructions.
1077: */
1078:
1079: if (p->ps->flags & PS_BACKSP) {
1080: if (p->ps->last == '_') {
1.29 schwarze 1081: switch (p->ps->nextf) {
1082: case TERMFONT_BI:
1083: break;
1084: case TERMFONT_BOLD:
1085: p->ps->nextf = TERMFONT_BI;
1086: break;
1087: default:
1088: p->ps->nextf = TERMFONT_UNDER;
1089: }
1.32 schwarze 1090: p->ps->last = c;
1091: p->ps->flags &= ~PS_BACKSP;
1092: return;
1093: }
1094: if (p->ps->last == c) {
1.29 schwarze 1095: switch (p->ps->nextf) {
1096: case TERMFONT_BI:
1097: break;
1098: case TERMFONT_UNDER:
1099: p->ps->nextf = TERMFONT_BI;
1100: break;
1101: default:
1102: p->ps->nextf = TERMFONT_BOLD;
1.2 schwarze 1103: }
1.32 schwarze 1104: p->ps->flags &= ~PS_BACKSP;
1105: return;
1.2 schwarze 1106: }
1.32 schwarze 1107:
1108: /*
1109: * This is not a font instruction, but rather
1110: * the next character. Prepare for overstrike.
1111: */
1112:
1113: savecol = p->ps->pscol;
1114: } else
1115: savecol = SIZE_MAX;
1116:
1117: /*
1118: * We found the next character, so the font instructions
1119: * for the previous one are complete.
1120: * Use them and print it.
1121: */
1122:
1123: if (p->ps->last != '\0') {
1.29 schwarze 1124: if (p->ps->nextf != p->ps->lastf) {
1.2 schwarze 1125: ps_pclose(p);
1.29 schwarze 1126: ps_setfont(p, p->ps->nextf);
1.2 schwarze 1127: }
1.29 schwarze 1128: p->ps->nextf = TERMFONT_NONE;
1.37 schwarze 1129:
1130: /*
1131: * For an overstrike, if a previous character
1132: * was wider, advance to center the new one.
1133: */
1134:
1135: if (p->ps->pscolnext) {
1136: wx = fonts[p->ps->lastf].gly[(int)p->ps->last-32].wx;
1137: if (p->ps->pscol + wx < p->ps->pscolnext)
1138: p->ps->pscol = (p->ps->pscol +
1139: p->ps->pscolnext - wx) / 2;
1140: }
1141:
1.29 schwarze 1142: ps_pletter(p, p->ps->last);
1.37 schwarze 1143:
1144: /*
1145: * For an overstrike, if a previous character
1146: * was wider, advance to the end of the old one.
1147: */
1148:
1149: if (p->ps->pscol < p->ps->pscolnext) {
1150: ps_pclose(p);
1151: p->ps->pscol = p->ps->pscolnext;
1152: }
1.2 schwarze 1153: }
1.32 schwarze 1154:
1155: /*
1156: * Do not print the current character yet because font
1157: * instructions might follow; only remember it.
1158: * For the first character, nothing else is done.
1159: * The final character will get printed from ps_fclose().
1160: */
1161:
1.29 schwarze 1162: p->ps->last = c;
1.32 schwarze 1163:
1164: /*
1165: * For an overstrike, back up to the previous position.
1.37 schwarze 1166: * If the previous character is wider than any it overstrikes,
1167: * remember the current position, because it might also be
1168: * wider than all that will overstrike it.
1.32 schwarze 1169: */
1170:
1171: if (savecol != SIZE_MAX) {
1.37 schwarze 1172: if (p->ps->pscolnext < p->ps->pscol)
1173: p->ps->pscolnext = p->ps->pscol;
1.32 schwarze 1174: ps_pclose(p);
1175: p->ps->pscol = savecol;
1176: p->ps->flags &= ~PS_BACKSP;
1.37 schwarze 1177: } else
1178: p->ps->pscolnext = 0;
1.2 schwarze 1179: }
1180:
1181: static void
1.1 schwarze 1182: ps_advance(struct termp *p, size_t len)
1183: {
1184:
1.2 schwarze 1185: /*
1186: * Advance some spaces. This can probably be made smarter,
1187: * i.e., to have multiple space-separated words in the same
1188: * scope, but this is easier: just close out the current scope
1189: * and readjust our column settings.
1190: */
1.1 schwarze 1191:
1.2 schwarze 1192: ps_fclose(p);
1.17 schwarze 1193: p->ps->pscol += len;
1.1 schwarze 1194: }
1195:
1196: static void
1197: ps_endline(struct termp *p)
1198: {
1199:
1.2 schwarze 1200: /* Close out any scopes we have open: we're at eoln. */
1201:
1202: ps_fclose(p);
1203:
1204: /*
1205: * If we're in the margin, don't try to recalculate our current
1206: * row. XXX: if the column tries to be fancy with multiple
1.24 schwarze 1207: * lines, we'll do nasty stuff.
1.2 schwarze 1208: */
1.1 schwarze 1209:
1.17 schwarze 1210: if (PS_MARGINS & p->ps->flags)
1.6 schwarze 1211: return;
1212:
1213: /* Left-justify. */
1214:
1.17 schwarze 1215: p->ps->pscol = p->ps->left;
1.6 schwarze 1216:
1217: /* If we haven't printed anything, return. */
1218:
1.17 schwarze 1219: if (PS_NEWPAGE & p->ps->flags)
1.1 schwarze 1220: return;
1221:
1.2 schwarze 1222: /*
1223: * Put us down a line. If we're at the page bottom, spit out a
1224: * showpage and restart our row.
1225: */
1226:
1.24 schwarze 1227: if (p->ps->psrow >= p->ps->lineheight + p->ps->bottom) {
1.17 schwarze 1228: p->ps->psrow -= p->ps->lineheight;
1.1 schwarze 1229: return;
1230: }
1231:
1.7 schwarze 1232: ps_closepage(p);
1.1 schwarze 1233: }
1.2 schwarze 1234:
1235: static void
1236: ps_setfont(struct termp *p, enum termfont f)
1237: {
1238:
1.4 schwarze 1239: assert(f < TERMFONT__MAX);
1.17 schwarze 1240: p->ps->lastf = f;
1.24 schwarze 1241:
1.6 schwarze 1242: /*
1243: * If we're still at the top of the page, let the font-setting
1244: * be delayed until we actually have stuff to print.
1245: */
1246:
1.17 schwarze 1247: if (PS_NEWPAGE & p->ps->flags)
1.6 schwarze 1248: return;
1249:
1.7 schwarze 1250: if (TERMTYPE_PS == p->type)
1.24 schwarze 1251: ps_printf(p, "/%s %zu selectfont\n",
1252: fonts[(int)f].name, p->ps->scale);
1.7 schwarze 1253: else
1.24 schwarze 1254: ps_printf(p, "/F%d %zu Tf\n",
1255: (int)f, p->ps->scale);
1.2 schwarze 1256: }
1257:
1.3 schwarze 1258: static size_t
1.17 schwarze 1259: ps_width(const struct termp *p, int c)
1.3 schwarze 1260: {
1261:
1.4 schwarze 1262: if (c <= 32 || c - 32 >= MAXCHAR)
1.26 schwarze 1263: c = 0;
1264: else
1265: c -= 32;
1.4 schwarze 1266:
1.40 schwarze 1267: return (size_t)fonts[(int)TERMFONT_NONE].gly[c].wx;
1.6 schwarze 1268: }
1269:
1.39 schwarze 1270: static int
1.6 schwarze 1271: ps_hspan(const struct termp *p, const struct roffsu *su)
1272: {
1273: double r;
1.24 schwarze 1274:
1.6 schwarze 1275: /*
1276: * All of these measurements are derived by converting from the
1277: * native measurement to AFM units.
1278: */
1279: switch (su->unit) {
1.28 schwarze 1280: case SCALE_BU:
1281: /*
1282: * Traditionally, the default unit is fixed to the
1283: * output media. So this would refer to the point. In
1284: * mandoc(1), however, we stick to the default terminal
1285: * scaling unit so that output is the same regardless
1286: * the media.
1287: */
1288: r = PNT2AFM(p, su->scale * 72.0 / 240.0);
1289: break;
1.24 schwarze 1290: case SCALE_CM:
1.28 schwarze 1291: r = PNT2AFM(p, su->scale * 72.0 / 2.54);
1292: break;
1293: case SCALE_EM:
1294: r = su->scale *
1295: fonts[(int)TERMFONT_NONE].gly[109 - 32].wx;
1296: break;
1297: case SCALE_EN:
1298: r = su->scale *
1299: fonts[(int)TERMFONT_NONE].gly[110 - 32].wx;
1.6 schwarze 1300: break;
1.24 schwarze 1301: case SCALE_IN:
1.27 schwarze 1302: r = PNT2AFM(p, su->scale * 72.0);
1.6 schwarze 1303: break;
1.28 schwarze 1304: case SCALE_MM:
1305: r = su->scale *
1306: fonts[(int)TERMFONT_NONE].gly[109 - 32].wx / 100.0;
1307: break;
1.24 schwarze 1308: case SCALE_PC:
1.27 schwarze 1309: r = PNT2AFM(p, su->scale * 12.0);
1.6 schwarze 1310: break;
1.24 schwarze 1311: case SCALE_PT:
1.28 schwarze 1312: r = PNT2AFM(p, su->scale * 1.0);
1.6 schwarze 1313: break;
1.24 schwarze 1314: case SCALE_VS:
1.17 schwarze 1315: r = su->scale * p->ps->lineheight;
1.6 schwarze 1316: break;
1317: default:
1318: r = su->scale;
1319: break;
1320: }
1321:
1.40 schwarze 1322: return r * 24.0;
1.17 schwarze 1323: }
1324:
1325: static void
1326: ps_growbuf(struct termp *p, size_t sz)
1327: {
1328: if (p->ps->psmargcur + sz <= p->ps->psmargsz)
1329: return;
1330:
1331: if (sz < PS_BUFSLOP)
1332: sz = PS_BUFSLOP;
1333:
1334: p->ps->psmargsz += sz;
1.25 schwarze 1335: p->ps->psmarg = mandoc_realloc(p->ps->psmarg, p->ps->psmargsz);
1.3 schwarze 1336: }
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