Annotation of src/usr.bin/mandoc/term_ps.c, Revision 1.33
1.33 ! schwarze 1: /* $OpenBSD: term_ps.c,v 1.32 2014/10/27 20:41:16 schwarze Exp $ */
1.1 schwarze 2: /*
1.17 schwarze 3: * Copyright (c) 2010, 2011 Kristaps Dzonsons <kristaps@bsd.lv>
1.22 schwarze 4: * Copyright (c) 2014 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: *
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: */
1.11 deraadt 18: #include <sys/types.h>
1.1 schwarze 19:
20: #include <assert.h>
21: #include <stdarg.h>
1.5 schwarze 22: #include <stdint.h>
1.1 schwarze 23: #include <stdio.h>
24: #include <stdlib.h>
25: #include <string.h>
1.6 schwarze 26: #include <unistd.h>
1.1 schwarze 27:
1.10 schwarze 28: #include "mandoc.h"
1.21 schwarze 29: #include "mandoc_aux.h"
1.1 schwarze 30: #include "out.h"
31: #include "main.h"
32: #include "term.h"
33:
1.17 schwarze 34: /* These work the buffer used by the header and footer. */
35: #define PS_BUFSLOP 128
36:
1.6 schwarze 37: /* Convert PostScript point "x" to an AFM unit. */
1.24 schwarze 38: #define PNT2AFM(p, x) \
1.17 schwarze 39: (size_t)((double)(x) * (1000.0 / (double)(p)->ps->scale))
1.6 schwarze 40:
41: /* Convert an AFM unit "x" to a PostScript points */
1.24 schwarze 42: #define AFM2PNT(p, x) \
1.17 schwarze 43: ((double)(x) / (1000.0 / (double)(p)->ps->scale))
1.6 schwarze 44:
1.4 schwarze 45: struct glyph {
1.7 schwarze 46: unsigned short wx; /* WX in AFM */
1.4 schwarze 47: };
48:
49: struct font {
50: const char *name; /* FontName in AFM */
51: #define MAXCHAR 95 /* total characters we can handle */
52: struct glyph gly[MAXCHAR]; /* glyph metrics */
53: };
1.1 schwarze 54:
1.17 schwarze 55: struct termp_ps {
56: int flags;
57: #define PS_INLINE (1 << 0) /* we're in a word */
58: #define PS_MARGINS (1 << 1) /* we're in the margins */
59: #define PS_NEWPAGE (1 << 2) /* new page, no words yet */
1.32 schwarze 60: #define PS_BACKSP (1 << 3) /* last character was backspace */
1.17 schwarze 61: size_t pscol; /* visible column (AFM units) */
62: size_t psrow; /* visible row (AFM units) */
63: char *psmarg; /* margin buf */
64: size_t psmargsz; /* margin buf size */
65: size_t psmargcur; /* cur index in margin buf */
1.32 schwarze 66: char last; /* last non-backspace seen */
1.17 schwarze 67: enum termfont lastf; /* last set font */
1.29 schwarze 68: enum termfont nextf; /* building next font here */
1.17 schwarze 69: size_t scale; /* font scaling factor */
70: size_t pages; /* number of pages shown */
71: size_t lineheight; /* line height (AFM units) */
72: size_t top; /* body top (AFM units) */
73: size_t bottom; /* body bottom (AFM units) */
74: size_t height; /* page height (AFM units */
75: size_t width; /* page width (AFM units) */
1.22 schwarze 76: size_t lastwidth; /* page width before last ll */
1.17 schwarze 77: size_t left; /* body left (AFM units) */
78: size_t header; /* header pos (AFM units) */
79: size_t footer; /* footer pos (AFM units) */
1.24 schwarze 80: size_t pdfbytes; /* current output byte */
1.17 schwarze 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);
1.23 schwarze 103: static void ps_setwidth(struct termp *, int, size_t);
1.33 ! schwarze 104: static struct termp *pspdf_alloc(const struct mchars *, char *);
1.17 schwarze 105: static void pdf_obj(struct termp *, size_t);
106:
1.4 schwarze 107: /*
108: * We define, for the time being, three fonts: bold, oblique/italic, and
109: * normal (roman). The following table hard-codes the font metrics for
110: * ASCII, i.e., 32--127.
111: */
112:
113: static const struct font fonts[TERMFONT__MAX] = {
1.6 schwarze 114: { "Times-Roman", {
115: { 250 },
116: { 333 },
117: { 408 },
118: { 500 },
119: { 500 },
120: { 833 },
121: { 778 },
122: { 333 },
123: { 333 },
124: { 333 },
125: { 500 },
126: { 564 },
127: { 250 },
128: { 333 },
129: { 250 },
130: { 278 },
131: { 500 },
132: { 500 },
133: { 500 },
134: { 500 },
135: { 500 },
136: { 500 },
137: { 500 },
138: { 500 },
139: { 500 },
140: { 500 },
141: { 278 },
142: { 278 },
143: { 564 },
144: { 564 },
145: { 564 },
146: { 444 },
147: { 921 },
148: { 722 },
149: { 667 },
150: { 667 },
151: { 722 },
152: { 611 },
153: { 556 },
154: { 722 },
155: { 722 },
156: { 333 },
157: { 389 },
158: { 722 },
159: { 611 },
160: { 889 },
161: { 722 },
162: { 722 },
163: { 556 },
164: { 722 },
165: { 667 },
166: { 556 },
167: { 611 },
168: { 722 },
169: { 722 },
170: { 944 },
171: { 722 },
172: { 722 },
173: { 611 },
174: { 333 },
175: { 278 },
176: { 333 },
177: { 469 },
178: { 500 },
179: { 333 },
180: { 444 },
181: { 500 },
182: { 444 },
183: { 500},
184: { 444},
185: { 333},
186: { 500},
187: { 500},
188: { 278},
189: { 278},
190: { 500},
191: { 278},
192: { 778},
193: { 500},
194: { 500},
195: { 500},
196: { 500},
197: { 333},
198: { 389},
199: { 278},
200: { 500},
201: { 500},
202: { 722},
203: { 500},
204: { 500},
205: { 444},
206: { 480},
207: { 200},
208: { 480},
209: { 541},
1.4 schwarze 210: } },
1.6 schwarze 211: { "Times-Bold", {
212: { 250 },
213: { 333 },
214: { 555 },
215: { 500 },
216: { 500 },
217: { 1000 },
218: { 833 },
219: { 333 },
220: { 333 },
221: { 333 },
222: { 500 },
223: { 570 },
224: { 250 },
225: { 333 },
226: { 250 },
227: { 278 },
228: { 500 },
229: { 500 },
230: { 500 },
231: { 500 },
232: { 500 },
233: { 500 },
234: { 500 },
235: { 500 },
236: { 500 },
237: { 500 },
238: { 333 },
239: { 333 },
240: { 570 },
241: { 570 },
242: { 570 },
243: { 500 },
244: { 930 },
245: { 722 },
246: { 667 },
247: { 722 },
248: { 722 },
249: { 667 },
250: { 611 },
251: { 778 },
252: { 778 },
253: { 389 },
254: { 500 },
255: { 778 },
256: { 667 },
257: { 944 },
258: { 722 },
259: { 778 },
260: { 611 },
261: { 778 },
262: { 722 },
263: { 556 },
264: { 667 },
265: { 722 },
266: { 722 },
267: { 1000 },
268: { 722 },
269: { 722 },
270: { 667 },
271: { 333 },
272: { 278 },
273: { 333 },
274: { 581 },
275: { 500 },
276: { 333 },
277: { 500 },
278: { 556 },
279: { 444 },
280: { 556 },
281: { 444 },
282: { 333 },
283: { 500 },
284: { 556 },
285: { 278 },
286: { 333 },
287: { 556 },
288: { 278 },
289: { 833 },
290: { 556 },
291: { 500 },
292: { 556 },
293: { 556 },
294: { 444 },
295: { 389 },
296: { 333 },
297: { 556 },
298: { 500 },
299: { 722 },
300: { 500 },
301: { 500 },
302: { 444 },
303: { 394 },
304: { 220 },
305: { 394 },
306: { 520 },
1.4 schwarze 307: } },
1.6 schwarze 308: { "Times-Italic", {
309: { 250 },
310: { 333 },
311: { 420 },
312: { 500 },
313: { 500 },
314: { 833 },
315: { 778 },
316: { 333 },
317: { 333 },
318: { 333 },
319: { 500 },
320: { 675 },
321: { 250 },
322: { 333 },
323: { 250 },
324: { 278 },
325: { 500 },
326: { 500 },
327: { 500 },
328: { 500 },
329: { 500 },
330: { 500 },
331: { 500 },
332: { 500 },
333: { 500 },
334: { 500 },
335: { 333 },
336: { 333 },
337: { 675 },
338: { 675 },
339: { 675 },
340: { 500 },
341: { 920 },
342: { 611 },
343: { 611 },
344: { 667 },
345: { 722 },
346: { 611 },
347: { 611 },
348: { 722 },
349: { 722 },
350: { 333 },
351: { 444 },
352: { 667 },
353: { 556 },
354: { 833 },
355: { 667 },
356: { 722 },
357: { 611 },
358: { 722 },
359: { 611 },
360: { 500 },
361: { 556 },
362: { 722 },
363: { 611 },
364: { 833 },
365: { 611 },
366: { 556 },
367: { 556 },
368: { 389 },
369: { 278 },
370: { 389 },
371: { 422 },
372: { 500 },
373: { 333 },
374: { 500 },
375: { 500 },
376: { 444 },
377: { 500 },
378: { 444 },
379: { 278 },
380: { 500 },
381: { 500 },
382: { 278 },
383: { 278 },
384: { 444 },
385: { 278 },
386: { 722 },
387: { 500 },
388: { 500 },
389: { 500 },
390: { 500 },
391: { 389 },
392: { 389 },
393: { 278 },
394: { 500 },
395: { 444 },
396: { 667 },
397: { 444 },
398: { 444 },
399: { 389 },
400: { 400 },
401: { 275 },
402: { 400 },
403: { 541 },
1.4 schwarze 404: } },
1.29 schwarze 405: { "Times-BoldItalic", {
406: { 250 },
407: { 389 },
408: { 555 },
409: { 500 },
410: { 500 },
411: { 833 },
412: { 778 },
413: { 333 },
414: { 333 },
415: { 333 },
416: { 500 },
417: { 570 },
418: { 250 },
419: { 333 },
420: { 250 },
421: { 278 },
422: { 500 },
423: { 500 },
424: { 500 },
425: { 500 },
426: { 500 },
427: { 500 },
428: { 500 },
429: { 500 },
430: { 500 },
431: { 500 },
432: { 333 },
433: { 333 },
434: { 570 },
435: { 570 },
436: { 570 },
437: { 500 },
438: { 832 },
439: { 667 },
440: { 667 },
441: { 667 },
442: { 722 },
443: { 667 },
444: { 667 },
445: { 722 },
446: { 778 },
447: { 389 },
448: { 500 },
449: { 667 },
450: { 611 },
451: { 889 },
452: { 722 },
453: { 722 },
454: { 611 },
455: { 722 },
456: { 667 },
457: { 556 },
458: { 611 },
459: { 722 },
460: { 667 },
461: { 889 },
462: { 667 },
463: { 611 },
464: { 611 },
465: { 333 },
466: { 278 },
467: { 333 },
468: { 570 },
469: { 500 },
470: { 333 },
471: { 500 },
472: { 500 },
473: { 444 },
474: { 500 },
475: { 444 },
476: { 333 },
477: { 500 },
478: { 556 },
479: { 278 },
480: { 278 },
481: { 500 },
482: { 278 },
483: { 778 },
484: { 556 },
485: { 500 },
486: { 500 },
487: { 500 },
488: { 389 },
489: { 389 },
490: { 278 },
491: { 556 },
492: { 444 },
493: { 667 },
494: { 500 },
495: { 444 },
496: { 389 },
497: { 348 },
498: { 220 },
499: { 348 },
500: { 570 },
501: } },
1.4 schwarze 502: };
503:
1.7 schwarze 504: void *
1.33 ! schwarze 505: pdf_alloc(const struct mchars *mchars, char *outopts)
1.7 schwarze 506: {
507: struct termp *p;
508:
1.33 ! schwarze 509: if (NULL != (p = pspdf_alloc(mchars, outopts)))
1.8 schwarze 510: p->type = TERMTYPE_PDF;
1.7 schwarze 511:
512: return(p);
513: }
1.1 schwarze 514:
515: void *
1.33 ! schwarze 516: ps_alloc(const struct mchars *mchars, char *outopts)
1.1 schwarze 517: {
518: struct termp *p;
1.7 schwarze 519:
1.33 ! schwarze 520: if (NULL != (p = pspdf_alloc(mchars, outopts)))
1.8 schwarze 521: p->type = TERMTYPE_PS;
1.7 schwarze 522:
523: return(p);
524: }
525:
526: static struct termp *
1.33 ! schwarze 527: pspdf_alloc(const struct mchars *mchars, char *outopts)
1.7 schwarze 528: {
529: struct termp *p;
1.18 schwarze 530: unsigned int pagex, pagey;
531: size_t marginx, marginy, lineheight;
1.5 schwarze 532: const char *toks[2];
1.6 schwarze 533: const char *pp;
1.5 schwarze 534: char *v;
1.1 schwarze 535:
1.17 schwarze 536: p = mandoc_calloc(1, sizeof(struct termp));
1.33 ! schwarze 537: p->symtab = mchars;
1.17 schwarze 538: p->enc = TERMENC_ASCII;
539: p->ps = mandoc_calloc(1, sizeof(struct termp_ps));
1.1 schwarze 540:
1.6 schwarze 541: p->advance = ps_advance;
1.1 schwarze 542: p->begin = ps_begin;
543: p->end = ps_end;
544: p->endline = ps_endline;
1.6 schwarze 545: p->hspan = ps_hspan;
546: p->letter = ps_letter;
1.22 schwarze 547: p->setwidth = ps_setwidth;
1.3 schwarze 548: p->width = ps_width;
1.24 schwarze 549:
1.5 schwarze 550: toks[0] = "paper";
551: toks[1] = NULL;
552:
1.6 schwarze 553: pp = NULL;
554:
1.5 schwarze 555: while (outopts && *outopts)
556: switch (getsubopt(&outopts, UNCONST(toks), &v)) {
1.24 schwarze 557: case 0:
1.6 schwarze 558: pp = v;
1.5 schwarze 559: break;
560: default:
561: break;
562: }
1.4 schwarze 563:
1.6 schwarze 564: /* Default to US letter (millimetres). */
565:
566: pagex = 216;
567: pagey = 279;
568:
569: /*
570: * The ISO-269 paper sizes can be calculated automatically, but
571: * it would require bringing in -lm for pow() and I'd rather not
572: * do that. So just do it the easy way for now. Since this
573: * only happens once, I'm not terribly concerned.
574: */
575:
576: if (pp && strcasecmp(pp, "letter")) {
577: if (0 == strcasecmp(pp, "a3")) {
578: pagex = 297;
579: pagey = 420;
580: } else if (0 == strcasecmp(pp, "a4")) {
581: pagex = 210;
582: pagey = 297;
583: } else if (0 == strcasecmp(pp, "a5")) {
584: pagex = 148;
585: pagey = 210;
586: } else if (0 == strcasecmp(pp, "legal")) {
587: pagex = 216;
588: pagey = 356;
1.18 schwarze 589: } else if (2 != sscanf(pp, "%ux%u", &pagex, &pagey))
1.6 schwarze 590: fprintf(stderr, "%s: Unknown paper\n", pp);
1.19 schwarze 591: }
1.6 schwarze 592:
1.24 schwarze 593: /*
1.6 schwarze 594: * This MUST be defined before any PNT2AFM or AFM2PNT
595: * calculations occur.
596: */
597:
1.17 schwarze 598: p->ps->scale = 11;
1.6 schwarze 599:
600: /* Remember millimetres -> AFM units. */
601:
602: pagex = PNT2AFM(p, ((double)pagex * 2.834));
603: pagey = PNT2AFM(p, ((double)pagey * 2.834));
604:
605: /* Margins are 1/9 the page x and y. */
606:
1.24 schwarze 607: marginx = (size_t)((double)pagex / 9.0);
608: marginy = (size_t)((double)pagey / 9.0);
1.6 schwarze 609:
610: /* Line-height is 1.4em. */
611:
1.17 schwarze 612: lineheight = PNT2AFM(p, ((double)p->ps->scale * 1.4));
1.4 schwarze 613:
1.22 schwarze 614: p->ps->width = p->ps->lastwidth = (size_t)pagex;
1.18 schwarze 615: p->ps->height = (size_t)pagey;
1.17 schwarze 616: p->ps->header = pagey - (marginy / 2) - (lineheight / 2);
617: p->ps->top = pagey - marginy;
618: p->ps->footer = (marginy / 2) - (lineheight / 2);
619: p->ps->bottom = marginy;
620: p->ps->left = marginx;
621: p->ps->lineheight = lineheight;
1.4 schwarze 622:
1.6 schwarze 623: p->defrmargin = pagex - (marginx * 2);
1.1 schwarze 624: return(p);
1.22 schwarze 625: }
626:
627: static void
1.23 schwarze 628: ps_setwidth(struct termp *p, int iop, size_t width)
1.22 schwarze 629: {
630: size_t lastwidth;
631:
632: lastwidth = p->ps->width;
1.23 schwarze 633: if (0 < iop)
634: p->ps->width += width;
635: else if (0 > iop)
636: p->ps->width -= width;
637: else
638: p->ps->width = width ? width : p->ps->lastwidth;
1.22 schwarze 639: p->ps->lastwidth = lastwidth;
1.1 schwarze 640: }
641:
642: void
1.7 schwarze 643: pspdf_free(void *arg)
1.1 schwarze 644: {
645: struct termp *p;
646:
647: p = (struct termp *)arg;
648:
1.17 schwarze 649: if (p->ps->psmarg)
650: free(p->ps->psmarg);
651: if (p->ps->pdfobjs)
652: free(p->ps->pdfobjs);
1.1 schwarze 653:
1.17 schwarze 654: free(p->ps);
1.1 schwarze 655: term_free(p);
656: }
657:
658: static void
659: ps_printf(struct termp *p, const char *fmt, ...)
660: {
661: va_list ap;
1.7 schwarze 662: int pos, len;
1.1 schwarze 663:
664: va_start(ap, fmt);
665:
666: /*
667: * If we're running in regular mode, then pipe directly into
668: * vprintf(). If we're processing margins, then push the data
669: * into our growable margin buffer.
670: */
671:
1.17 schwarze 672: if ( ! (PS_MARGINS & p->ps->flags)) {
1.7 schwarze 673: len = vprintf(fmt, ap);
1.1 schwarze 674: va_end(ap);
1.24 schwarze 675: p->ps->pdfbytes += len < 0 ? 0 : (size_t)len;
1.1 schwarze 676: return;
677: }
678:
1.24 schwarze 679: /*
1.1 schwarze 680: * XXX: I assume that the in-margin print won't exceed
681: * PS_BUFSLOP (128 bytes), which is reasonable but still an
682: * assumption that will cause pukeage if it's not the case.
683: */
684:
1.9 schwarze 685: ps_growbuf(p, PS_BUFSLOP);
1.1 schwarze 686:
1.17 schwarze 687: pos = (int)p->ps->psmargcur;
1.19 schwarze 688: vsnprintf(&p->ps->psmarg[pos], PS_BUFSLOP, fmt, ap);
1.1 schwarze 689:
690: va_end(ap);
1.7 schwarze 691:
1.17 schwarze 692: p->ps->psmargcur = strlen(p->ps->psmarg);
1.1 schwarze 693: }
694:
695: static void
696: ps_putchar(struct termp *p, char c)
697: {
698: int pos;
699:
700: /* See ps_printf(). */
701:
1.17 schwarze 702: if ( ! (PS_MARGINS & p->ps->flags)) {
1.1 schwarze 703: putchar(c);
1.17 schwarze 704: p->ps->pdfbytes++;
1.1 schwarze 705: return;
706: }
707:
1.9 schwarze 708: ps_growbuf(p, 2);
1.1 schwarze 709:
1.17 schwarze 710: pos = (int)p->ps->psmargcur++;
711: p->ps->psmarg[pos++] = c;
712: p->ps->psmarg[pos] = '\0';
1.1 schwarze 713: }
714:
1.7 schwarze 715: static void
1.8 schwarze 716: pdf_obj(struct termp *p, size_t obj)
717: {
718:
719: assert(obj > 0);
720:
1.17 schwarze 721: if ((obj - 1) >= p->ps->pdfobjsz) {
722: p->ps->pdfobjsz = obj + 128;
1.25 schwarze 723: p->ps->pdfobjs = mandoc_reallocarray(p->ps->pdfobjs,
724: p->ps->pdfobjsz, sizeof(size_t));
1.8 schwarze 725: }
726:
1.17 schwarze 727: p->ps->pdfobjs[(int)obj - 1] = p->ps->pdfbytes;
1.8 schwarze 728: ps_printf(p, "%zu 0 obj\n", obj);
729: }
730:
731: static void
1.7 schwarze 732: ps_closepage(struct termp *p)
733: {
734: int i;
1.8 schwarze 735: size_t len, base;
736:
737: /*
738: * Close out a page that we've already flushed to output. In
739: * PostScript, we simply note that the page must be showed. In
740: * PDF, we must now create the Length, Resource, and Page node
741: * for the page contents.
742: */
1.7 schwarze 743:
1.17 schwarze 744: assert(p->ps->psmarg && p->ps->psmarg[0]);
745: ps_printf(p, "%s", p->ps->psmarg);
1.7 schwarze 746:
1.8 schwarze 747: if (TERMTYPE_PS != p->type) {
1.7 schwarze 748: ps_printf(p, "ET\n");
1.8 schwarze 749:
1.17 schwarze 750: len = p->ps->pdfbytes - p->ps->pdflastpg;
751: base = p->ps->pages * 4 + p->ps->pdfbody;
1.8 schwarze 752:
753: ps_printf(p, "endstream\nendobj\n");
754:
755: /* Length of content. */
756: pdf_obj(p, base + 1);
757: ps_printf(p, "%zu\nendobj\n", len);
758:
759: /* Resource for content. */
760: pdf_obj(p, base + 2);
761: ps_printf(p, "<<\n/ProcSet [/PDF /Text]\n");
1.7 schwarze 762: ps_printf(p, "/Font <<\n");
1.24 schwarze 763: for (i = 0; i < (int)TERMFONT__MAX; i++)
1.7 schwarze 764: ps_printf(p, "/F%d %d 0 R\n", i, 3 + i);
1.8 schwarze 765: ps_printf(p, ">>\n>>\n");
766:
767: /* Page node. */
768: pdf_obj(p, base + 3);
1.7 schwarze 769: ps_printf(p, "<<\n");
770: ps_printf(p, "/Type /Page\n");
771: ps_printf(p, "/Parent 2 0 R\n");
1.8 schwarze 772: ps_printf(p, "/Resources %zu 0 R\n", base + 2);
773: ps_printf(p, "/Contents %zu 0 R\n", base);
774: ps_printf(p, ">>\nendobj\n");
775: } else
776: ps_printf(p, "showpage\n");
1.7 schwarze 777:
1.17 schwarze 778: p->ps->pages++;
779: p->ps->psrow = p->ps->top;
780: assert( ! (PS_NEWPAGE & p->ps->flags));
781: p->ps->flags |= PS_NEWPAGE;
1.7 schwarze 782: }
783:
1.1 schwarze 784: static void
785: ps_end(struct termp *p)
786: {
1.8 schwarze 787: size_t i, xref, base;
1.1 schwarze 788:
789: /*
790: * At the end of the file, do one last showpage. This is the
791: * same behaviour as groff(1) and works for multiple pages as
792: * well as just one.
793: */
794:
1.17 schwarze 795: if ( ! (PS_NEWPAGE & p->ps->flags)) {
796: assert(0 == p->ps->flags);
797: assert('\0' == p->ps->last);
1.7 schwarze 798: ps_closepage(p);
1.6 schwarze 799: }
1.4 schwarze 800:
1.7 schwarze 801: if (TERMTYPE_PS == p->type) {
802: ps_printf(p, "%%%%Trailer\n");
1.17 schwarze 803: ps_printf(p, "%%%%Pages: %zu\n", p->ps->pages);
1.7 schwarze 804: ps_printf(p, "%%%%EOF\n");
805: return;
1.24 schwarze 806: }
1.7 schwarze 807:
1.8 schwarze 808: pdf_obj(p, 2);
809: ps_printf(p, "<<\n/Type /Pages\n");
1.7 schwarze 810: ps_printf(p, "/MediaBox [0 0 %zu %zu]\n",
1.17 schwarze 811: (size_t)AFM2PNT(p, p->ps->width),
812: (size_t)AFM2PNT(p, p->ps->height));
1.7 schwarze 813:
1.17 schwarze 814: ps_printf(p, "/Count %zu\n", p->ps->pages);
1.7 schwarze 815: ps_printf(p, "/Kids [");
816:
1.17 schwarze 817: for (i = 0; i < p->ps->pages; i++)
1.24 schwarze 818: ps_printf(p, " %zu 0 R", i * 4 + p->ps->pdfbody + 3);
1.8 schwarze 819:
1.24 schwarze 820: base = (p->ps->pages - 1) * 4 + p->ps->pdfbody + 4;
1.8 schwarze 821:
822: ps_printf(p, "]\n>>\nendobj\n");
823: pdf_obj(p, base);
1.7 schwarze 824: ps_printf(p, "<<\n");
825: ps_printf(p, "/Type /Catalog\n");
826: ps_printf(p, "/Pages 2 0 R\n");
827: ps_printf(p, ">>\n");
1.17 schwarze 828: xref = p->ps->pdfbytes;
1.7 schwarze 829: ps_printf(p, "xref\n");
1.8 schwarze 830: ps_printf(p, "0 %zu\n", base + 1);
831: ps_printf(p, "0000000000 65535 f \n");
832:
833: for (i = 0; i < base; i++)
1.24 schwarze 834: ps_printf(p, "%.10zu 00000 n \n",
835: p->ps->pdfobjs[(int)i]);
1.8 schwarze 836:
1.7 schwarze 837: ps_printf(p, "trailer\n");
838: ps_printf(p, "<<\n");
1.8 schwarze 839: ps_printf(p, "/Size %zu\n", base + 1);
840: ps_printf(p, "/Root %zu 0 R\n", base);
1.7 schwarze 841: ps_printf(p, "/Info 1 0 R\n");
842: ps_printf(p, ">>\n");
843: ps_printf(p, "startxref\n");
844: ps_printf(p, "%zu\n", xref);
845: ps_printf(p, "%%%%EOF\n");
1.1 schwarze 846: }
847:
848: static void
849: ps_begin(struct termp *p)
850: {
1.4 schwarze 851: int i;
1.1 schwarze 852:
1.24 schwarze 853: /*
1.2 schwarze 854: * Print margins into margin buffer. Nothing gets output to the
855: * screen yet, so we don't need to initialise the primary state.
1.1 schwarze 856: */
857:
1.17 schwarze 858: if (p->ps->psmarg) {
859: assert(p->ps->psmargsz);
860: p->ps->psmarg[0] = '\0';
1.1 schwarze 861: }
862:
1.17 schwarze 863: /*p->ps->pdfbytes = 0;*/
864: p->ps->psmargcur = 0;
865: p->ps->flags = PS_MARGINS;
866: p->ps->pscol = p->ps->left;
867: p->ps->psrow = p->ps->header;
1.1 schwarze 868:
1.2 schwarze 869: ps_setfont(p, TERMFONT_NONE);
1.1 schwarze 870:
871: (*p->headf)(p, p->argf);
872: (*p->endline)(p);
873:
1.17 schwarze 874: p->ps->pscol = p->ps->left;
875: p->ps->psrow = p->ps->footer;
1.1 schwarze 876:
877: (*p->footf)(p, p->argf);
878: (*p->endline)(p);
879:
1.17 schwarze 880: p->ps->flags &= ~PS_MARGINS;
1.2 schwarze 881:
1.17 schwarze 882: assert(0 == p->ps->flags);
883: assert(p->ps->psmarg);
884: assert('\0' != p->ps->psmarg[0]);
1.1 schwarze 885:
1.24 schwarze 886: /*
1.2 schwarze 887: * Print header and initialise page state. Following this,
888: * stuff gets printed to the screen, so make sure we're sane.
889: */
890:
1.7 schwarze 891: if (TERMTYPE_PS == p->type) {
892: ps_printf(p, "%%!PS-Adobe-3.0\n");
893: ps_printf(p, "%%%%DocumentData: Clean7Bit\n");
894: ps_printf(p, "%%%%Orientation: Portrait\n");
895: ps_printf(p, "%%%%Pages: (atend)\n");
896: ps_printf(p, "%%%%PageOrder: Ascend\n");
897: ps_printf(p, "%%%%DocumentMedia: "
1.24 schwarze 898: "Default %zu %zu 0 () ()\n",
899: (size_t)AFM2PNT(p, p->ps->width),
900: (size_t)AFM2PNT(p, p->ps->height));
1.7 schwarze 901: ps_printf(p, "%%%%DocumentNeededResources: font");
1.4 schwarze 902:
1.7 schwarze 903: for (i = 0; i < (int)TERMFONT__MAX; i++)
904: ps_printf(p, " %s", fonts[i].name);
905:
906: ps_printf(p, "\n%%%%EndComments\n");
907: } else {
908: ps_printf(p, "%%PDF-1.1\n");
1.8 schwarze 909: pdf_obj(p, 1);
1.7 schwarze 910: ps_printf(p, "<<\n");
911: ps_printf(p, ">>\n");
912: ps_printf(p, "endobj\n");
913:
914: for (i = 0; i < (int)TERMFONT__MAX; i++) {
1.8 schwarze 915: pdf_obj(p, (size_t)i + 3);
1.7 schwarze 916: ps_printf(p, "<<\n");
917: ps_printf(p, "/Type /Font\n");
918: ps_printf(p, "/Subtype /Type1\n");
1.20 schwarze 919: ps_printf(p, "/Name /F%d\n", i);
1.7 schwarze 920: ps_printf(p, "/BaseFont /%s\n", fonts[i].name);
921: ps_printf(p, ">>\n");
922: }
923: }
924:
1.17 schwarze 925: p->ps->pdfbody = (size_t)TERMFONT__MAX + 3;
926: p->ps->pscol = p->ps->left;
927: p->ps->psrow = p->ps->top;
928: p->ps->flags |= PS_NEWPAGE;
1.6 schwarze 929: ps_setfont(p, TERMFONT_NONE);
1.1 schwarze 930: }
931:
932: static void
1.4 schwarze 933: ps_pletter(struct termp *p, int c)
1.1 schwarze 934: {
1.4 schwarze 935: int f;
1.6 schwarze 936:
937: /*
938: * If we haven't opened a page context, then output that we're
939: * in a new page and make sure the font is correctly set.
940: */
941:
1.17 schwarze 942: if (PS_NEWPAGE & p->ps->flags) {
1.7 schwarze 943: if (TERMTYPE_PS == p->type) {
1.24 schwarze 944: ps_printf(p, "%%%%Page: %zu %zu\n",
945: p->ps->pages + 1, p->ps->pages + 1);
946: ps_printf(p, "/%s %zu selectfont\n",
947: fonts[(int)p->ps->lastf].name,
948: p->ps->scale);
1.7 schwarze 949: } else {
1.24 schwarze 950: pdf_obj(p, p->ps->pdfbody +
951: p->ps->pages * 4);
1.7 schwarze 952: ps_printf(p, "<<\n");
1.24 schwarze 953: ps_printf(p, "/Length %zu 0 R\n",
954: p->ps->pdfbody + 1 + p->ps->pages * 4);
1.7 schwarze 955: ps_printf(p, ">>\nstream\n");
956: }
1.17 schwarze 957: p->ps->pdflastpg = p->ps->pdfbytes;
958: p->ps->flags &= ~PS_NEWPAGE;
1.6 schwarze 959: }
1.24 schwarze 960:
1.2 schwarze 961: /*
962: * If we're not in a PostScript "word" context, then open one
963: * now at the current cursor.
964: */
965:
1.17 schwarze 966: if ( ! (PS_INLINE & p->ps->flags)) {
1.7 schwarze 967: if (TERMTYPE_PS != p->type) {
1.24 schwarze 968: ps_printf(p, "BT\n/F%d %zu Tf\n",
969: (int)p->ps->lastf, p->ps->scale);
1.7 schwarze 970: ps_printf(p, "%.3f %.3f Td\n(",
1.24 schwarze 971: AFM2PNT(p, p->ps->pscol),
972: AFM2PNT(p, p->ps->psrow));
1.7 schwarze 973: } else
1.24 schwarze 974: ps_printf(p, "%.3f %.3f moveto\n(",
975: AFM2PNT(p, p->ps->pscol),
976: AFM2PNT(p, p->ps->psrow));
1.17 schwarze 977: p->ps->flags |= PS_INLINE;
1.1 schwarze 978: }
979:
1.17 schwarze 980: assert( ! (PS_NEWPAGE & p->ps->flags));
1.6 schwarze 981:
1.1 schwarze 982: /*
983: * We need to escape these characters as per the PostScript
984: * specification. We would also escape non-graphable characters
985: * (like tabs), but none of them would get to this point and
986: * it's superfluous to abort() on them.
987: */
988:
989: switch (c) {
1.24 schwarze 990: case '(':
1.1 schwarze 991: /* FALLTHROUGH */
1.24 schwarze 992: case ')':
1.1 schwarze 993: /* FALLTHROUGH */
1.24 schwarze 994: case '\\':
1.1 schwarze 995: ps_putchar(p, '\\');
996: break;
997: default:
998: break;
999: }
1000:
1001: /* Write the character and adjust where we are on the page. */
1.2 schwarze 1002:
1.17 schwarze 1003: f = (int)p->ps->lastf;
1.4 schwarze 1004:
1.26 schwarze 1005: if (c <= 32 || c - 32 >= MAXCHAR)
1006: c = 32;
1.4 schwarze 1007:
1.6 schwarze 1008: ps_putchar(p, (char)c);
1.4 schwarze 1009: c -= 32;
1.17 schwarze 1010: p->ps->pscol += (size_t)fonts[f].gly[c].wx;
1.1 schwarze 1011: }
1012:
1013: static void
1.2 schwarze 1014: ps_pclose(struct termp *p)
1015: {
1016:
1.24 schwarze 1017: /*
1.2 schwarze 1018: * Spit out that we're exiting a word context (this is a
1019: * "partial close" because we don't check the last-char buffer
1020: * or anything).
1021: */
1022:
1.17 schwarze 1023: if ( ! (PS_INLINE & p->ps->flags))
1.2 schwarze 1024: return;
1.24 schwarze 1025:
1.7 schwarze 1026: if (TERMTYPE_PS != p->type) {
1027: ps_printf(p, ") Tj\nET\n");
1028: } else
1029: ps_printf(p, ") show\n");
1030:
1.17 schwarze 1031: p->ps->flags &= ~PS_INLINE;
1.2 schwarze 1032: }
1033:
1034: static void
1035: ps_fclose(struct termp *p)
1036: {
1037:
1038: /*
1039: * Strong closure: if we have a last-char, spit it out after
1040: * checking that we're in the right font mode. This will of
1041: * course open a new scope, if applicable.
1042: *
1043: * Following this, close out any scope that's open.
1044: */
1045:
1.29 schwarze 1046: if (p->ps->last != '\0') {
1.32 schwarze 1047: assert( ! (p->ps->flags & PS_BACKSP));
1.29 schwarze 1048: if (p->ps->nextf != p->ps->lastf) {
1.2 schwarze 1049: ps_pclose(p);
1.29 schwarze 1050: ps_setfont(p, p->ps->nextf);
1.2 schwarze 1051: }
1.29 schwarze 1052: p->ps->nextf = TERMFONT_NONE;
1.17 schwarze 1053: ps_pletter(p, p->ps->last);
1054: p->ps->last = '\0';
1.2 schwarze 1055: }
1056:
1.17 schwarze 1057: if ( ! (PS_INLINE & p->ps->flags))
1.2 schwarze 1058: return;
1059:
1060: ps_pclose(p);
1061: }
1062:
1063: static void
1.17 schwarze 1064: ps_letter(struct termp *p, int arg)
1.2 schwarze 1065: {
1.32 schwarze 1066: size_t savecol;
1.30 schwarze 1067: char c;
1.17 schwarze 1068:
1069: c = arg >= 128 || arg <= 0 ? '?' : arg;
1.2 schwarze 1070:
1071: /*
1.32 schwarze 1072: * When receiving a backspace, merely flag it.
1073: * We don't know yet whether it is
1074: * a font instruction or an overstrike.
1.2 schwarze 1075: */
1076:
1.32 schwarze 1077: if (c == '\b') {
1.29 schwarze 1078: assert(p->ps->last != '\0');
1.32 schwarze 1079: assert( ! (p->ps->flags & PS_BACKSP));
1080: p->ps->flags |= PS_BACKSP;
1081: return;
1082: }
1083:
1084: /*
1085: * Decode font instructions.
1086: */
1087:
1088: if (p->ps->flags & PS_BACKSP) {
1089: if (p->ps->last == '_') {
1.29 schwarze 1090: switch (p->ps->nextf) {
1091: case TERMFONT_BI:
1092: break;
1093: case TERMFONT_BOLD:
1094: p->ps->nextf = TERMFONT_BI;
1095: break;
1096: default:
1097: p->ps->nextf = TERMFONT_UNDER;
1098: }
1.32 schwarze 1099: p->ps->last = c;
1100: p->ps->flags &= ~PS_BACKSP;
1101: return;
1102: }
1103: if (p->ps->last == c) {
1.29 schwarze 1104: switch (p->ps->nextf) {
1105: case TERMFONT_BI:
1106: break;
1107: case TERMFONT_UNDER:
1108: p->ps->nextf = TERMFONT_BI;
1109: break;
1110: default:
1111: p->ps->nextf = TERMFONT_BOLD;
1.2 schwarze 1112: }
1.32 schwarze 1113: p->ps->flags &= ~PS_BACKSP;
1114: return;
1.2 schwarze 1115: }
1.32 schwarze 1116:
1117: /*
1118: * This is not a font instruction, but rather
1119: * the next character. Prepare for overstrike.
1120: */
1121:
1122: savecol = p->ps->pscol;
1123: } else
1124: savecol = SIZE_MAX;
1125:
1126: /*
1127: * We found the next character, so the font instructions
1128: * for the previous one are complete.
1129: * Use them and print it.
1130: */
1131:
1132: if (p->ps->last != '\0') {
1.29 schwarze 1133: if (p->ps->nextf != p->ps->lastf) {
1.2 schwarze 1134: ps_pclose(p);
1.29 schwarze 1135: ps_setfont(p, p->ps->nextf);
1.2 schwarze 1136: }
1.29 schwarze 1137: p->ps->nextf = TERMFONT_NONE;
1138: ps_pletter(p, p->ps->last);
1.2 schwarze 1139: }
1.32 schwarze 1140:
1141: /*
1142: * Do not print the current character yet because font
1143: * instructions might follow; only remember it.
1144: * For the first character, nothing else is done.
1145: * The final character will get printed from ps_fclose().
1146: */
1147:
1.29 schwarze 1148: p->ps->last = c;
1.32 schwarze 1149:
1150: /*
1151: * For an overstrike, back up to the previous position.
1152: */
1153:
1154: if (savecol != SIZE_MAX) {
1155: ps_pclose(p);
1156: p->ps->pscol = savecol;
1157: p->ps->flags &= ~PS_BACKSP;
1158: }
1.2 schwarze 1159: }
1160:
1161: static void
1.1 schwarze 1162: ps_advance(struct termp *p, size_t len)
1163: {
1164:
1.2 schwarze 1165: /*
1166: * Advance some spaces. This can probably be made smarter,
1167: * i.e., to have multiple space-separated words in the same
1168: * scope, but this is easier: just close out the current scope
1169: * and readjust our column settings.
1170: */
1.1 schwarze 1171:
1.2 schwarze 1172: ps_fclose(p);
1.17 schwarze 1173: p->ps->pscol += len;
1.1 schwarze 1174: }
1175:
1176: static void
1177: ps_endline(struct termp *p)
1178: {
1179:
1.2 schwarze 1180: /* Close out any scopes we have open: we're at eoln. */
1181:
1182: ps_fclose(p);
1183:
1184: /*
1185: * If we're in the margin, don't try to recalculate our current
1186: * row. XXX: if the column tries to be fancy with multiple
1.24 schwarze 1187: * lines, we'll do nasty stuff.
1.2 schwarze 1188: */
1.1 schwarze 1189:
1.17 schwarze 1190: if (PS_MARGINS & p->ps->flags)
1.6 schwarze 1191: return;
1192:
1193: /* Left-justify. */
1194:
1.17 schwarze 1195: p->ps->pscol = p->ps->left;
1.6 schwarze 1196:
1197: /* If we haven't printed anything, return. */
1198:
1.17 schwarze 1199: if (PS_NEWPAGE & p->ps->flags)
1.1 schwarze 1200: return;
1201:
1.2 schwarze 1202: /*
1203: * Put us down a line. If we're at the page bottom, spit out a
1204: * showpage and restart our row.
1205: */
1206:
1.24 schwarze 1207: if (p->ps->psrow >= p->ps->lineheight + p->ps->bottom) {
1.17 schwarze 1208: p->ps->psrow -= p->ps->lineheight;
1.1 schwarze 1209: return;
1210: }
1211:
1.7 schwarze 1212: ps_closepage(p);
1.1 schwarze 1213: }
1.2 schwarze 1214:
1215: static void
1216: ps_setfont(struct termp *p, enum termfont f)
1217: {
1218:
1.4 schwarze 1219: assert(f < TERMFONT__MAX);
1.17 schwarze 1220: p->ps->lastf = f;
1.24 schwarze 1221:
1.6 schwarze 1222: /*
1223: * If we're still at the top of the page, let the font-setting
1224: * be delayed until we actually have stuff to print.
1225: */
1226:
1.17 schwarze 1227: if (PS_NEWPAGE & p->ps->flags)
1.6 schwarze 1228: return;
1229:
1.7 schwarze 1230: if (TERMTYPE_PS == p->type)
1.24 schwarze 1231: ps_printf(p, "/%s %zu selectfont\n",
1232: fonts[(int)f].name, p->ps->scale);
1.7 schwarze 1233: else
1.24 schwarze 1234: ps_printf(p, "/F%d %zu Tf\n",
1235: (int)f, p->ps->scale);
1.2 schwarze 1236: }
1237:
1.3 schwarze 1238: static size_t
1.17 schwarze 1239: ps_width(const struct termp *p, int c)
1.3 schwarze 1240: {
1241:
1.4 schwarze 1242: if (c <= 32 || c - 32 >= MAXCHAR)
1.26 schwarze 1243: c = 0;
1244: else
1245: c -= 32;
1.4 schwarze 1246:
1.17 schwarze 1247: return((size_t)fonts[(int)TERMFONT_NONE].gly[c].wx);
1.6 schwarze 1248: }
1249:
1250: static double
1251: ps_hspan(const struct termp *p, const struct roffsu *su)
1252: {
1253: double r;
1.24 schwarze 1254:
1.6 schwarze 1255: /*
1256: * All of these measurements are derived by converting from the
1257: * native measurement to AFM units.
1258: */
1259: switch (su->unit) {
1.28 schwarze 1260: case SCALE_BU:
1261: /*
1262: * Traditionally, the default unit is fixed to the
1263: * output media. So this would refer to the point. In
1264: * mandoc(1), however, we stick to the default terminal
1265: * scaling unit so that output is the same regardless
1266: * the media.
1267: */
1268: r = PNT2AFM(p, su->scale * 72.0 / 240.0);
1269: break;
1.24 schwarze 1270: case SCALE_CM:
1.28 schwarze 1271: r = PNT2AFM(p, su->scale * 72.0 / 2.54);
1272: break;
1273: case SCALE_EM:
1274: r = su->scale *
1275: fonts[(int)TERMFONT_NONE].gly[109 - 32].wx;
1276: break;
1277: case SCALE_EN:
1278: r = su->scale *
1279: fonts[(int)TERMFONT_NONE].gly[110 - 32].wx;
1.6 schwarze 1280: break;
1.24 schwarze 1281: case SCALE_IN:
1.27 schwarze 1282: r = PNT2AFM(p, su->scale * 72.0);
1.6 schwarze 1283: break;
1.28 schwarze 1284: case SCALE_MM:
1285: r = su->scale *
1286: fonts[(int)TERMFONT_NONE].gly[109 - 32].wx / 100.0;
1287: break;
1.24 schwarze 1288: case SCALE_PC:
1.27 schwarze 1289: r = PNT2AFM(p, su->scale * 12.0);
1.6 schwarze 1290: break;
1.24 schwarze 1291: case SCALE_PT:
1.28 schwarze 1292: r = PNT2AFM(p, su->scale * 1.0);
1.6 schwarze 1293: break;
1.24 schwarze 1294: case SCALE_VS:
1.17 schwarze 1295: r = su->scale * p->ps->lineheight;
1.6 schwarze 1296: break;
1297: default:
1298: r = su->scale;
1299: break;
1300: }
1301:
1302: return(r);
1.17 schwarze 1303: }
1304:
1305: static void
1306: ps_growbuf(struct termp *p, size_t sz)
1307: {
1308: if (p->ps->psmargcur + sz <= p->ps->psmargsz)
1309: return;
1310:
1311: if (sz < PS_BUFSLOP)
1312: sz = PS_BUFSLOP;
1313:
1314: p->ps->psmargsz += sz;
1.25 schwarze 1315: p->ps->psmarg = mandoc_realloc(p->ps->psmarg, p->ps->psmargsz);
1.3 schwarze 1316: }
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