Annotation of src/usr.bin/mandoc/term_ps.c, Revision 1.36
1.36 ! schwarze 1: /* $OpenBSD: term_ps.c,v 1.35 2014/12/01 08:05:02 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:
1.21 schwarze 28: #include "mandoc_aux.h"
1.1 schwarze 29: #include "out.h"
1.35 schwarze 30: #include "term.h"
1.1 schwarze 31: #include "main.h"
32:
1.17 schwarze 33: /* These work the buffer used by the header and footer. */
34: #define PS_BUFSLOP 128
35:
1.6 schwarze 36: /* Convert PostScript point "x" to an AFM unit. */
1.24 schwarze 37: #define PNT2AFM(p, x) \
1.17 schwarze 38: (size_t)((double)(x) * (1000.0 / (double)(p)->ps->scale))
1.6 schwarze 39:
40: /* Convert an AFM unit "x" to a PostScript points */
1.24 schwarze 41: #define AFM2PNT(p, x) \
1.17 schwarze 42: ((double)(x) / (1000.0 / (double)(p)->ps->scale))
1.6 schwarze 43:
1.4 schwarze 44: struct glyph {
1.7 schwarze 45: unsigned short wx; /* WX in AFM */
1.4 schwarze 46: };
47:
48: struct font {
49: const char *name; /* FontName in AFM */
50: #define MAXCHAR 95 /* total characters we can handle */
51: struct glyph gly[MAXCHAR]; /* glyph metrics */
52: };
1.1 schwarze 53:
1.17 schwarze 54: struct termp_ps {
55: int flags;
56: #define PS_INLINE (1 << 0) /* we're in a word */
57: #define PS_MARGINS (1 << 1) /* we're in the margins */
58: #define PS_NEWPAGE (1 << 2) /* new page, no words yet */
1.32 schwarze 59: #define PS_BACKSP (1 << 3) /* last character was backspace */
1.17 schwarze 60: size_t pscol; /* visible column (AFM units) */
61: size_t psrow; /* visible row (AFM units) */
62: char *psmarg; /* margin buf */
63: size_t psmargsz; /* margin buf size */
64: size_t psmargcur; /* cur index in margin buf */
1.32 schwarze 65: char last; /* last non-backspace seen */
1.17 schwarze 66: enum termfont lastf; /* last set font */
1.29 schwarze 67: enum termfont nextf; /* building next font here */
1.17 schwarze 68: size_t scale; /* font scaling factor */
69: size_t pages; /* number of pages shown */
70: size_t lineheight; /* line height (AFM units) */
71: size_t top; /* body top (AFM units) */
72: size_t bottom; /* body bottom (AFM units) */
73: size_t height; /* page height (AFM units */
74: size_t width; /* page width (AFM units) */
1.22 schwarze 75: size_t lastwidth; /* page width before last ll */
1.17 schwarze 76: size_t left; /* body left (AFM units) */
77: size_t header; /* header pos (AFM units) */
78: size_t footer; /* footer pos (AFM units) */
1.24 schwarze 79: size_t pdfbytes; /* current output byte */
1.17 schwarze 80: size_t pdflastpg; /* byte of last page mark */
81: size_t pdfbody; /* start of body object */
82: size_t *pdfobjs; /* table of object offsets */
83: size_t pdfobjsz; /* size of pdfobjs */
84: };
85:
86: static double ps_hspan(const struct termp *,
87: const struct roffsu *);
88: static size_t ps_width(const struct termp *, int);
89: static void ps_advance(struct termp *, size_t);
90: static void ps_begin(struct termp *);
91: static void ps_closepage(struct termp *);
92: static void ps_end(struct termp *);
93: static void ps_endline(struct termp *);
94: static void ps_fclose(struct termp *);
95: static void ps_growbuf(struct termp *, size_t);
96: static void ps_letter(struct termp *, int);
97: static void ps_pclose(struct termp *);
98: static void ps_pletter(struct termp *, int);
99: static void ps_printf(struct termp *, const char *, ...);
100: static void ps_putchar(struct termp *, char);
101: static void ps_setfont(struct termp *, enum termfont);
1.23 schwarze 102: static void ps_setwidth(struct termp *, int, size_t);
1.33 schwarze 103: static struct termp *pspdf_alloc(const struct mchars *, char *);
1.17 schwarze 104: static void pdf_obj(struct termp *, size_t);
105:
1.4 schwarze 106: /*
107: * We define, for the time being, three fonts: bold, oblique/italic, and
108: * normal (roman). The following table hard-codes the font metrics for
109: * ASCII, i.e., 32--127.
110: */
111:
112: static const struct font fonts[TERMFONT__MAX] = {
1.6 schwarze 113: { "Times-Roman", {
114: { 250 },
115: { 333 },
116: { 408 },
117: { 500 },
118: { 500 },
119: { 833 },
120: { 778 },
121: { 333 },
122: { 333 },
123: { 333 },
124: { 500 },
125: { 564 },
126: { 250 },
127: { 333 },
128: { 250 },
129: { 278 },
130: { 500 },
131: { 500 },
132: { 500 },
133: { 500 },
134: { 500 },
135: { 500 },
136: { 500 },
137: { 500 },
138: { 500 },
139: { 500 },
140: { 278 },
141: { 278 },
142: { 564 },
143: { 564 },
144: { 564 },
145: { 444 },
146: { 921 },
147: { 722 },
148: { 667 },
149: { 667 },
150: { 722 },
151: { 611 },
152: { 556 },
153: { 722 },
154: { 722 },
155: { 333 },
156: { 389 },
157: { 722 },
158: { 611 },
159: { 889 },
160: { 722 },
161: { 722 },
162: { 556 },
163: { 722 },
164: { 667 },
165: { 556 },
166: { 611 },
167: { 722 },
168: { 722 },
169: { 944 },
170: { 722 },
171: { 722 },
172: { 611 },
173: { 333 },
174: { 278 },
175: { 333 },
176: { 469 },
177: { 500 },
178: { 333 },
179: { 444 },
180: { 500 },
181: { 444 },
182: { 500},
183: { 444},
184: { 333},
185: { 500},
186: { 500},
187: { 278},
188: { 278},
189: { 500},
190: { 278},
191: { 778},
192: { 500},
193: { 500},
194: { 500},
195: { 500},
196: { 333},
197: { 389},
198: { 278},
199: { 500},
200: { 500},
201: { 722},
202: { 500},
203: { 500},
204: { 444},
205: { 480},
206: { 200},
207: { 480},
208: { 541},
1.4 schwarze 209: } },
1.6 schwarze 210: { "Times-Bold", {
211: { 250 },
212: { 333 },
213: { 555 },
214: { 500 },
215: { 500 },
216: { 1000 },
217: { 833 },
218: { 333 },
219: { 333 },
220: { 333 },
221: { 500 },
222: { 570 },
223: { 250 },
224: { 333 },
225: { 250 },
226: { 278 },
227: { 500 },
228: { 500 },
229: { 500 },
230: { 500 },
231: { 500 },
232: { 500 },
233: { 500 },
234: { 500 },
235: { 500 },
236: { 500 },
237: { 333 },
238: { 333 },
239: { 570 },
240: { 570 },
241: { 570 },
242: { 500 },
243: { 930 },
244: { 722 },
245: { 667 },
246: { 722 },
247: { 722 },
248: { 667 },
249: { 611 },
250: { 778 },
251: { 778 },
252: { 389 },
253: { 500 },
254: { 778 },
255: { 667 },
256: { 944 },
257: { 722 },
258: { 778 },
259: { 611 },
260: { 778 },
261: { 722 },
262: { 556 },
263: { 667 },
264: { 722 },
265: { 722 },
266: { 1000 },
267: { 722 },
268: { 722 },
269: { 667 },
270: { 333 },
271: { 278 },
272: { 333 },
273: { 581 },
274: { 500 },
275: { 333 },
276: { 500 },
277: { 556 },
278: { 444 },
279: { 556 },
280: { 444 },
281: { 333 },
282: { 500 },
283: { 556 },
284: { 278 },
285: { 333 },
286: { 556 },
287: { 278 },
288: { 833 },
289: { 556 },
290: { 500 },
291: { 556 },
292: { 556 },
293: { 444 },
294: { 389 },
295: { 333 },
296: { 556 },
297: { 500 },
298: { 722 },
299: { 500 },
300: { 500 },
301: { 444 },
302: { 394 },
303: { 220 },
304: { 394 },
305: { 520 },
1.4 schwarze 306: } },
1.6 schwarze 307: { "Times-Italic", {
308: { 250 },
309: { 333 },
310: { 420 },
311: { 500 },
312: { 500 },
313: { 833 },
314: { 778 },
315: { 333 },
316: { 333 },
317: { 333 },
318: { 500 },
319: { 675 },
320: { 250 },
321: { 333 },
322: { 250 },
323: { 278 },
324: { 500 },
325: { 500 },
326: { 500 },
327: { 500 },
328: { 500 },
329: { 500 },
330: { 500 },
331: { 500 },
332: { 500 },
333: { 500 },
334: { 333 },
335: { 333 },
336: { 675 },
337: { 675 },
338: { 675 },
339: { 500 },
340: { 920 },
341: { 611 },
342: { 611 },
343: { 667 },
344: { 722 },
345: { 611 },
346: { 611 },
347: { 722 },
348: { 722 },
349: { 333 },
350: { 444 },
351: { 667 },
352: { 556 },
353: { 833 },
354: { 667 },
355: { 722 },
356: { 611 },
357: { 722 },
358: { 611 },
359: { 500 },
360: { 556 },
361: { 722 },
362: { 611 },
363: { 833 },
364: { 611 },
365: { 556 },
366: { 556 },
367: { 389 },
368: { 278 },
369: { 389 },
370: { 422 },
371: { 500 },
372: { 333 },
373: { 500 },
374: { 500 },
375: { 444 },
376: { 500 },
377: { 444 },
378: { 278 },
379: { 500 },
380: { 500 },
381: { 278 },
382: { 278 },
383: { 444 },
384: { 278 },
385: { 722 },
386: { 500 },
387: { 500 },
388: { 500 },
389: { 500 },
390: { 389 },
391: { 389 },
392: { 278 },
393: { 500 },
394: { 444 },
395: { 667 },
396: { 444 },
397: { 444 },
398: { 389 },
399: { 400 },
400: { 275 },
401: { 400 },
402: { 541 },
1.4 schwarze 403: } },
1.29 schwarze 404: { "Times-BoldItalic", {
405: { 250 },
406: { 389 },
407: { 555 },
408: { 500 },
409: { 500 },
410: { 833 },
411: { 778 },
412: { 333 },
413: { 333 },
414: { 333 },
415: { 500 },
416: { 570 },
417: { 250 },
418: { 333 },
419: { 250 },
420: { 278 },
421: { 500 },
422: { 500 },
423: { 500 },
424: { 500 },
425: { 500 },
426: { 500 },
427: { 500 },
428: { 500 },
429: { 500 },
430: { 500 },
431: { 333 },
432: { 333 },
433: { 570 },
434: { 570 },
435: { 570 },
436: { 500 },
437: { 832 },
438: { 667 },
439: { 667 },
440: { 667 },
441: { 722 },
442: { 667 },
443: { 667 },
444: { 722 },
445: { 778 },
446: { 389 },
447: { 500 },
448: { 667 },
449: { 611 },
450: { 889 },
451: { 722 },
452: { 722 },
453: { 611 },
454: { 722 },
455: { 667 },
456: { 556 },
457: { 611 },
458: { 722 },
459: { 667 },
460: { 889 },
461: { 667 },
462: { 611 },
463: { 611 },
464: { 333 },
465: { 278 },
466: { 333 },
467: { 570 },
468: { 500 },
469: { 333 },
470: { 500 },
471: { 500 },
472: { 444 },
473: { 500 },
474: { 444 },
475: { 333 },
476: { 500 },
477: { 556 },
478: { 278 },
479: { 278 },
480: { 500 },
481: { 278 },
482: { 778 },
483: { 556 },
484: { 500 },
485: { 500 },
486: { 500 },
487: { 389 },
488: { 389 },
489: { 278 },
490: { 556 },
491: { 444 },
492: { 667 },
493: { 500 },
494: { 444 },
495: { 389 },
496: { 348 },
497: { 220 },
498: { 348 },
499: { 570 },
500: } },
1.4 schwarze 501: };
502:
1.7 schwarze 503: void *
1.33 schwarze 504: pdf_alloc(const struct mchars *mchars, char *outopts)
1.7 schwarze 505: {
506: struct termp *p;
507:
1.33 schwarze 508: if (NULL != (p = pspdf_alloc(mchars, outopts)))
1.8 schwarze 509: p->type = TERMTYPE_PDF;
1.7 schwarze 510:
511: return(p);
512: }
1.1 schwarze 513:
514: void *
1.33 schwarze 515: ps_alloc(const struct mchars *mchars, char *outopts)
1.1 schwarze 516: {
517: struct termp *p;
1.7 schwarze 518:
1.33 schwarze 519: if (NULL != (p = pspdf_alloc(mchars, outopts)))
1.8 schwarze 520: p->type = TERMTYPE_PS;
1.7 schwarze 521:
522: return(p);
523: }
524:
525: static struct termp *
1.33 schwarze 526: pspdf_alloc(const struct mchars *mchars, char *outopts)
1.7 schwarze 527: {
528: struct termp *p;
1.18 schwarze 529: unsigned int pagex, pagey;
530: size_t marginx, marginy, lineheight;
1.5 schwarze 531: const char *toks[2];
1.6 schwarze 532: const char *pp;
1.5 schwarze 533: char *v;
1.1 schwarze 534:
1.17 schwarze 535: p = mandoc_calloc(1, sizeof(struct termp));
1.33 schwarze 536: p->symtab = mchars;
1.17 schwarze 537: p->enc = TERMENC_ASCII;
1.36 ! schwarze 538: p->fontq = mandoc_reallocarray(NULL,
! 539: (p->fontsz = 8), sizeof(enum termfont));
! 540: p->fontq[0] = p->fontl = TERMFONT_NONE;
1.17 schwarze 541: p->ps = mandoc_calloc(1, sizeof(struct termp_ps));
1.1 schwarze 542:
1.6 schwarze 543: p->advance = ps_advance;
1.1 schwarze 544: p->begin = ps_begin;
545: p->end = ps_end;
546: p->endline = ps_endline;
1.6 schwarze 547: p->hspan = ps_hspan;
548: p->letter = ps_letter;
1.22 schwarze 549: p->setwidth = ps_setwidth;
1.3 schwarze 550: p->width = ps_width;
1.24 schwarze 551:
1.5 schwarze 552: toks[0] = "paper";
553: toks[1] = NULL;
554:
1.6 schwarze 555: pp = NULL;
556:
1.5 schwarze 557: while (outopts && *outopts)
558: switch (getsubopt(&outopts, UNCONST(toks), &v)) {
1.24 schwarze 559: case 0:
1.6 schwarze 560: pp = v;
1.5 schwarze 561: break;
562: default:
563: break;
564: }
1.4 schwarze 565:
1.6 schwarze 566: /* Default to US letter (millimetres). */
567:
568: pagex = 216;
569: pagey = 279;
570:
571: /*
572: * The ISO-269 paper sizes can be calculated automatically, but
573: * it would require bringing in -lm for pow() and I'd rather not
574: * do that. So just do it the easy way for now. Since this
575: * only happens once, I'm not terribly concerned.
576: */
577:
578: if (pp && strcasecmp(pp, "letter")) {
579: if (0 == strcasecmp(pp, "a3")) {
580: pagex = 297;
581: pagey = 420;
582: } else if (0 == strcasecmp(pp, "a4")) {
583: pagex = 210;
584: pagey = 297;
585: } else if (0 == strcasecmp(pp, "a5")) {
586: pagex = 148;
587: pagey = 210;
588: } else if (0 == strcasecmp(pp, "legal")) {
589: pagex = 216;
590: pagey = 356;
1.18 schwarze 591: } else if (2 != sscanf(pp, "%ux%u", &pagex, &pagey))
1.6 schwarze 592: fprintf(stderr, "%s: Unknown paper\n", pp);
1.19 schwarze 593: }
1.6 schwarze 594:
1.24 schwarze 595: /*
1.6 schwarze 596: * This MUST be defined before any PNT2AFM or AFM2PNT
597: * calculations occur.
598: */
599:
1.17 schwarze 600: p->ps->scale = 11;
1.6 schwarze 601:
602: /* Remember millimetres -> AFM units. */
603:
604: pagex = PNT2AFM(p, ((double)pagex * 2.834));
605: pagey = PNT2AFM(p, ((double)pagey * 2.834));
606:
607: /* Margins are 1/9 the page x and y. */
608:
1.24 schwarze 609: marginx = (size_t)((double)pagex / 9.0);
610: marginy = (size_t)((double)pagey / 9.0);
1.6 schwarze 611:
612: /* Line-height is 1.4em. */
613:
1.17 schwarze 614: lineheight = PNT2AFM(p, ((double)p->ps->scale * 1.4));
1.4 schwarze 615:
1.22 schwarze 616: p->ps->width = p->ps->lastwidth = (size_t)pagex;
1.18 schwarze 617: p->ps->height = (size_t)pagey;
1.17 schwarze 618: p->ps->header = pagey - (marginy / 2) - (lineheight / 2);
619: p->ps->top = pagey - marginy;
620: p->ps->footer = (marginy / 2) - (lineheight / 2);
621: p->ps->bottom = marginy;
622: p->ps->left = marginx;
623: p->ps->lineheight = lineheight;
1.4 schwarze 624:
1.6 schwarze 625: p->defrmargin = pagex - (marginx * 2);
1.1 schwarze 626: return(p);
1.22 schwarze 627: }
628:
629: static void
1.23 schwarze 630: ps_setwidth(struct termp *p, int iop, size_t width)
1.22 schwarze 631: {
632: size_t lastwidth;
633:
634: lastwidth = p->ps->width;
1.34 schwarze 635: if (iop > 0)
1.23 schwarze 636: p->ps->width += width;
1.34 schwarze 637: else if (iop == 0)
638: p->ps->width = width ? width : p->ps->lastwidth;
639: else if (p->ps->width > width)
1.23 schwarze 640: p->ps->width -= width;
641: else
1.34 schwarze 642: p->ps->width = 0;
1.22 schwarze 643: p->ps->lastwidth = lastwidth;
1.1 schwarze 644: }
645:
646: void
1.7 schwarze 647: pspdf_free(void *arg)
1.1 schwarze 648: {
649: struct termp *p;
650:
651: p = (struct termp *)arg;
652:
1.17 schwarze 653: if (p->ps->psmarg)
654: free(p->ps->psmarg);
655: if (p->ps->pdfobjs)
656: free(p->ps->pdfobjs);
1.1 schwarze 657:
1.17 schwarze 658: free(p->ps);
1.1 schwarze 659: term_free(p);
660: }
661:
662: static void
663: ps_printf(struct termp *p, const char *fmt, ...)
664: {
665: va_list ap;
1.7 schwarze 666: int pos, len;
1.1 schwarze 667:
668: va_start(ap, fmt);
669:
670: /*
671: * If we're running in regular mode, then pipe directly into
672: * vprintf(). If we're processing margins, then push the data
673: * into our growable margin buffer.
674: */
675:
1.17 schwarze 676: if ( ! (PS_MARGINS & p->ps->flags)) {
1.7 schwarze 677: len = vprintf(fmt, ap);
1.1 schwarze 678: va_end(ap);
1.24 schwarze 679: p->ps->pdfbytes += len < 0 ? 0 : (size_t)len;
1.1 schwarze 680: return;
681: }
682:
1.24 schwarze 683: /*
1.1 schwarze 684: * XXX: I assume that the in-margin print won't exceed
685: * PS_BUFSLOP (128 bytes), which is reasonable but still an
686: * assumption that will cause pukeage if it's not the case.
687: */
688:
1.9 schwarze 689: ps_growbuf(p, PS_BUFSLOP);
1.1 schwarze 690:
1.17 schwarze 691: pos = (int)p->ps->psmargcur;
1.19 schwarze 692: vsnprintf(&p->ps->psmarg[pos], PS_BUFSLOP, fmt, ap);
1.1 schwarze 693:
694: va_end(ap);
1.7 schwarze 695:
1.17 schwarze 696: p->ps->psmargcur = strlen(p->ps->psmarg);
1.1 schwarze 697: }
698:
699: static void
700: ps_putchar(struct termp *p, char c)
701: {
702: int pos;
703:
704: /* See ps_printf(). */
705:
1.17 schwarze 706: if ( ! (PS_MARGINS & p->ps->flags)) {
1.1 schwarze 707: putchar(c);
1.17 schwarze 708: p->ps->pdfbytes++;
1.1 schwarze 709: return;
710: }
711:
1.9 schwarze 712: ps_growbuf(p, 2);
1.1 schwarze 713:
1.17 schwarze 714: pos = (int)p->ps->psmargcur++;
715: p->ps->psmarg[pos++] = c;
716: p->ps->psmarg[pos] = '\0';
1.1 schwarze 717: }
718:
1.7 schwarze 719: static void
1.8 schwarze 720: pdf_obj(struct termp *p, size_t obj)
721: {
722:
723: assert(obj > 0);
724:
1.17 schwarze 725: if ((obj - 1) >= p->ps->pdfobjsz) {
726: p->ps->pdfobjsz = obj + 128;
1.25 schwarze 727: p->ps->pdfobjs = mandoc_reallocarray(p->ps->pdfobjs,
728: p->ps->pdfobjsz, sizeof(size_t));
1.8 schwarze 729: }
730:
1.17 schwarze 731: p->ps->pdfobjs[(int)obj - 1] = p->ps->pdfbytes;
1.8 schwarze 732: ps_printf(p, "%zu 0 obj\n", obj);
733: }
734:
735: static void
1.7 schwarze 736: ps_closepage(struct termp *p)
737: {
738: int i;
1.8 schwarze 739: size_t len, base;
740:
741: /*
742: * Close out a page that we've already flushed to output. In
743: * PostScript, we simply note that the page must be showed. In
744: * PDF, we must now create the Length, Resource, and Page node
745: * for the page contents.
746: */
1.7 schwarze 747:
1.17 schwarze 748: assert(p->ps->psmarg && p->ps->psmarg[0]);
749: ps_printf(p, "%s", p->ps->psmarg);
1.7 schwarze 750:
1.8 schwarze 751: if (TERMTYPE_PS != p->type) {
1.7 schwarze 752: ps_printf(p, "ET\n");
1.8 schwarze 753:
1.17 schwarze 754: len = p->ps->pdfbytes - p->ps->pdflastpg;
755: base = p->ps->pages * 4 + p->ps->pdfbody;
1.8 schwarze 756:
757: ps_printf(p, "endstream\nendobj\n");
758:
759: /* Length of content. */
760: pdf_obj(p, base + 1);
761: ps_printf(p, "%zu\nendobj\n", len);
762:
763: /* Resource for content. */
764: pdf_obj(p, base + 2);
765: ps_printf(p, "<<\n/ProcSet [/PDF /Text]\n");
1.7 schwarze 766: ps_printf(p, "/Font <<\n");
1.24 schwarze 767: for (i = 0; i < (int)TERMFONT__MAX; i++)
1.7 schwarze 768: ps_printf(p, "/F%d %d 0 R\n", i, 3 + i);
1.8 schwarze 769: ps_printf(p, ">>\n>>\n");
770:
771: /* Page node. */
772: pdf_obj(p, base + 3);
1.7 schwarze 773: ps_printf(p, "<<\n");
774: ps_printf(p, "/Type /Page\n");
775: ps_printf(p, "/Parent 2 0 R\n");
1.8 schwarze 776: ps_printf(p, "/Resources %zu 0 R\n", base + 2);
777: ps_printf(p, "/Contents %zu 0 R\n", base);
778: ps_printf(p, ">>\nendobj\n");
779: } else
780: ps_printf(p, "showpage\n");
1.7 schwarze 781:
1.17 schwarze 782: p->ps->pages++;
783: p->ps->psrow = p->ps->top;
784: assert( ! (PS_NEWPAGE & p->ps->flags));
785: p->ps->flags |= PS_NEWPAGE;
1.7 schwarze 786: }
787:
1.1 schwarze 788: static void
789: ps_end(struct termp *p)
790: {
1.8 schwarze 791: size_t i, xref, base;
1.1 schwarze 792:
793: /*
794: * At the end of the file, do one last showpage. This is the
795: * same behaviour as groff(1) and works for multiple pages as
796: * well as just one.
797: */
798:
1.17 schwarze 799: if ( ! (PS_NEWPAGE & p->ps->flags)) {
800: assert(0 == p->ps->flags);
801: assert('\0' == p->ps->last);
1.7 schwarze 802: ps_closepage(p);
1.6 schwarze 803: }
1.4 schwarze 804:
1.7 schwarze 805: if (TERMTYPE_PS == p->type) {
806: ps_printf(p, "%%%%Trailer\n");
1.17 schwarze 807: ps_printf(p, "%%%%Pages: %zu\n", p->ps->pages);
1.7 schwarze 808: ps_printf(p, "%%%%EOF\n");
809: return;
1.24 schwarze 810: }
1.7 schwarze 811:
1.8 schwarze 812: pdf_obj(p, 2);
813: ps_printf(p, "<<\n/Type /Pages\n");
1.7 schwarze 814: ps_printf(p, "/MediaBox [0 0 %zu %zu]\n",
1.17 schwarze 815: (size_t)AFM2PNT(p, p->ps->width),
816: (size_t)AFM2PNT(p, p->ps->height));
1.7 schwarze 817:
1.17 schwarze 818: ps_printf(p, "/Count %zu\n", p->ps->pages);
1.7 schwarze 819: ps_printf(p, "/Kids [");
820:
1.17 schwarze 821: for (i = 0; i < p->ps->pages; i++)
1.24 schwarze 822: ps_printf(p, " %zu 0 R", i * 4 + p->ps->pdfbody + 3);
1.8 schwarze 823:
1.24 schwarze 824: base = (p->ps->pages - 1) * 4 + p->ps->pdfbody + 4;
1.8 schwarze 825:
826: ps_printf(p, "]\n>>\nendobj\n");
827: pdf_obj(p, base);
1.7 schwarze 828: ps_printf(p, "<<\n");
829: ps_printf(p, "/Type /Catalog\n");
830: ps_printf(p, "/Pages 2 0 R\n");
831: ps_printf(p, ">>\n");
1.17 schwarze 832: xref = p->ps->pdfbytes;
1.7 schwarze 833: ps_printf(p, "xref\n");
1.8 schwarze 834: ps_printf(p, "0 %zu\n", base + 1);
835: ps_printf(p, "0000000000 65535 f \n");
836:
837: for (i = 0; i < base; i++)
1.24 schwarze 838: ps_printf(p, "%.10zu 00000 n \n",
839: p->ps->pdfobjs[(int)i]);
1.8 schwarze 840:
1.7 schwarze 841: ps_printf(p, "trailer\n");
842: ps_printf(p, "<<\n");
1.8 schwarze 843: ps_printf(p, "/Size %zu\n", base + 1);
844: ps_printf(p, "/Root %zu 0 R\n", base);
1.7 schwarze 845: ps_printf(p, "/Info 1 0 R\n");
846: ps_printf(p, ">>\n");
847: ps_printf(p, "startxref\n");
848: ps_printf(p, "%zu\n", xref);
849: ps_printf(p, "%%%%EOF\n");
1.1 schwarze 850: }
851:
852: static void
853: ps_begin(struct termp *p)
854: {
1.4 schwarze 855: int i;
1.1 schwarze 856:
1.24 schwarze 857: /*
1.2 schwarze 858: * Print margins into margin buffer. Nothing gets output to the
859: * screen yet, so we don't need to initialise the primary state.
1.1 schwarze 860: */
861:
1.17 schwarze 862: if (p->ps->psmarg) {
863: assert(p->ps->psmargsz);
864: p->ps->psmarg[0] = '\0';
1.1 schwarze 865: }
866:
1.17 schwarze 867: /*p->ps->pdfbytes = 0;*/
868: p->ps->psmargcur = 0;
869: p->ps->flags = PS_MARGINS;
870: p->ps->pscol = p->ps->left;
871: p->ps->psrow = p->ps->header;
1.1 schwarze 872:
1.2 schwarze 873: ps_setfont(p, TERMFONT_NONE);
1.1 schwarze 874:
875: (*p->headf)(p, p->argf);
876: (*p->endline)(p);
877:
1.17 schwarze 878: p->ps->pscol = p->ps->left;
879: p->ps->psrow = p->ps->footer;
1.1 schwarze 880:
881: (*p->footf)(p, p->argf);
882: (*p->endline)(p);
883:
1.17 schwarze 884: p->ps->flags &= ~PS_MARGINS;
1.2 schwarze 885:
1.17 schwarze 886: assert(0 == p->ps->flags);
887: assert(p->ps->psmarg);
888: assert('\0' != p->ps->psmarg[0]);
1.1 schwarze 889:
1.24 schwarze 890: /*
1.2 schwarze 891: * Print header and initialise page state. Following this,
892: * stuff gets printed to the screen, so make sure we're sane.
893: */
894:
1.7 schwarze 895: if (TERMTYPE_PS == p->type) {
896: ps_printf(p, "%%!PS-Adobe-3.0\n");
897: ps_printf(p, "%%%%DocumentData: Clean7Bit\n");
898: ps_printf(p, "%%%%Orientation: Portrait\n");
899: ps_printf(p, "%%%%Pages: (atend)\n");
900: ps_printf(p, "%%%%PageOrder: Ascend\n");
901: ps_printf(p, "%%%%DocumentMedia: "
1.24 schwarze 902: "Default %zu %zu 0 () ()\n",
903: (size_t)AFM2PNT(p, p->ps->width),
904: (size_t)AFM2PNT(p, p->ps->height));
1.7 schwarze 905: ps_printf(p, "%%%%DocumentNeededResources: font");
1.4 schwarze 906:
1.7 schwarze 907: for (i = 0; i < (int)TERMFONT__MAX; i++)
908: ps_printf(p, " %s", fonts[i].name);
909:
910: ps_printf(p, "\n%%%%EndComments\n");
911: } else {
912: ps_printf(p, "%%PDF-1.1\n");
1.8 schwarze 913: pdf_obj(p, 1);
1.7 schwarze 914: ps_printf(p, "<<\n");
915: ps_printf(p, ">>\n");
916: ps_printf(p, "endobj\n");
917:
918: for (i = 0; i < (int)TERMFONT__MAX; i++) {
1.8 schwarze 919: pdf_obj(p, (size_t)i + 3);
1.7 schwarze 920: ps_printf(p, "<<\n");
921: ps_printf(p, "/Type /Font\n");
922: ps_printf(p, "/Subtype /Type1\n");
1.20 schwarze 923: ps_printf(p, "/Name /F%d\n", i);
1.7 schwarze 924: ps_printf(p, "/BaseFont /%s\n", fonts[i].name);
925: ps_printf(p, ">>\n");
926: }
927: }
928:
1.17 schwarze 929: p->ps->pdfbody = (size_t)TERMFONT__MAX + 3;
930: p->ps->pscol = p->ps->left;
931: p->ps->psrow = p->ps->top;
932: p->ps->flags |= PS_NEWPAGE;
1.6 schwarze 933: ps_setfont(p, TERMFONT_NONE);
1.1 schwarze 934: }
935:
936: static void
1.4 schwarze 937: ps_pletter(struct termp *p, int c)
1.1 schwarze 938: {
1.4 schwarze 939: int f;
1.6 schwarze 940:
941: /*
942: * If we haven't opened a page context, then output that we're
943: * in a new page and make sure the font is correctly set.
944: */
945:
1.17 schwarze 946: if (PS_NEWPAGE & p->ps->flags) {
1.7 schwarze 947: if (TERMTYPE_PS == p->type) {
1.24 schwarze 948: ps_printf(p, "%%%%Page: %zu %zu\n",
949: p->ps->pages + 1, p->ps->pages + 1);
950: ps_printf(p, "/%s %zu selectfont\n",
951: fonts[(int)p->ps->lastf].name,
952: p->ps->scale);
1.7 schwarze 953: } else {
1.24 schwarze 954: pdf_obj(p, p->ps->pdfbody +
955: p->ps->pages * 4);
1.7 schwarze 956: ps_printf(p, "<<\n");
1.24 schwarze 957: ps_printf(p, "/Length %zu 0 R\n",
958: p->ps->pdfbody + 1 + p->ps->pages * 4);
1.7 schwarze 959: ps_printf(p, ">>\nstream\n");
960: }
1.17 schwarze 961: p->ps->pdflastpg = p->ps->pdfbytes;
962: p->ps->flags &= ~PS_NEWPAGE;
1.6 schwarze 963: }
1.24 schwarze 964:
1.2 schwarze 965: /*
966: * If we're not in a PostScript "word" context, then open one
967: * now at the current cursor.
968: */
969:
1.17 schwarze 970: if ( ! (PS_INLINE & p->ps->flags)) {
1.7 schwarze 971: if (TERMTYPE_PS != p->type) {
1.24 schwarze 972: ps_printf(p, "BT\n/F%d %zu Tf\n",
973: (int)p->ps->lastf, p->ps->scale);
1.7 schwarze 974: ps_printf(p, "%.3f %.3f Td\n(",
1.24 schwarze 975: AFM2PNT(p, p->ps->pscol),
976: AFM2PNT(p, p->ps->psrow));
1.7 schwarze 977: } else
1.24 schwarze 978: ps_printf(p, "%.3f %.3f moveto\n(",
979: AFM2PNT(p, p->ps->pscol),
980: AFM2PNT(p, p->ps->psrow));
1.17 schwarze 981: p->ps->flags |= PS_INLINE;
1.1 schwarze 982: }
983:
1.17 schwarze 984: assert( ! (PS_NEWPAGE & p->ps->flags));
1.6 schwarze 985:
1.1 schwarze 986: /*
987: * We need to escape these characters as per the PostScript
988: * specification. We would also escape non-graphable characters
989: * (like tabs), but none of them would get to this point and
990: * it's superfluous to abort() on them.
991: */
992:
993: switch (c) {
1.24 schwarze 994: case '(':
1.1 schwarze 995: /* FALLTHROUGH */
1.24 schwarze 996: case ')':
1.1 schwarze 997: /* FALLTHROUGH */
1.24 schwarze 998: case '\\':
1.1 schwarze 999: ps_putchar(p, '\\');
1000: break;
1001: default:
1002: break;
1003: }
1004:
1005: /* Write the character and adjust where we are on the page. */
1.2 schwarze 1006:
1.17 schwarze 1007: f = (int)p->ps->lastf;
1.4 schwarze 1008:
1.26 schwarze 1009: if (c <= 32 || c - 32 >= MAXCHAR)
1010: c = 32;
1.4 schwarze 1011:
1.6 schwarze 1012: ps_putchar(p, (char)c);
1.4 schwarze 1013: c -= 32;
1.17 schwarze 1014: p->ps->pscol += (size_t)fonts[f].gly[c].wx;
1.1 schwarze 1015: }
1016:
1017: static void
1.2 schwarze 1018: ps_pclose(struct termp *p)
1019: {
1020:
1.24 schwarze 1021: /*
1.2 schwarze 1022: * Spit out that we're exiting a word context (this is a
1023: * "partial close" because we don't check the last-char buffer
1024: * or anything).
1025: */
1026:
1.17 schwarze 1027: if ( ! (PS_INLINE & p->ps->flags))
1.2 schwarze 1028: return;
1.24 schwarze 1029:
1.7 schwarze 1030: if (TERMTYPE_PS != p->type) {
1031: ps_printf(p, ") Tj\nET\n");
1032: } else
1033: ps_printf(p, ") show\n");
1034:
1.17 schwarze 1035: p->ps->flags &= ~PS_INLINE;
1.2 schwarze 1036: }
1037:
1038: static void
1039: ps_fclose(struct termp *p)
1040: {
1041:
1042: /*
1043: * Strong closure: if we have a last-char, spit it out after
1044: * checking that we're in the right font mode. This will of
1045: * course open a new scope, if applicable.
1046: *
1047: * Following this, close out any scope that's open.
1048: */
1049:
1.29 schwarze 1050: if (p->ps->last != '\0') {
1.32 schwarze 1051: assert( ! (p->ps->flags & PS_BACKSP));
1.29 schwarze 1052: if (p->ps->nextf != p->ps->lastf) {
1.2 schwarze 1053: ps_pclose(p);
1.29 schwarze 1054: ps_setfont(p, p->ps->nextf);
1.2 schwarze 1055: }
1.29 schwarze 1056: p->ps->nextf = TERMFONT_NONE;
1.17 schwarze 1057: ps_pletter(p, p->ps->last);
1058: p->ps->last = '\0';
1.2 schwarze 1059: }
1060:
1.17 schwarze 1061: if ( ! (PS_INLINE & p->ps->flags))
1.2 schwarze 1062: return;
1063:
1064: ps_pclose(p);
1065: }
1066:
1067: static void
1.17 schwarze 1068: ps_letter(struct termp *p, int arg)
1.2 schwarze 1069: {
1.32 schwarze 1070: size_t savecol;
1.30 schwarze 1071: char c;
1.17 schwarze 1072:
1073: c = arg >= 128 || arg <= 0 ? '?' : arg;
1.2 schwarze 1074:
1075: /*
1.32 schwarze 1076: * When receiving a backspace, merely flag it.
1077: * We don't know yet whether it is
1078: * a font instruction or an overstrike.
1.2 schwarze 1079: */
1080:
1.32 schwarze 1081: if (c == '\b') {
1.29 schwarze 1082: assert(p->ps->last != '\0');
1.32 schwarze 1083: assert( ! (p->ps->flags & PS_BACKSP));
1084: p->ps->flags |= PS_BACKSP;
1085: return;
1086: }
1087:
1088: /*
1089: * Decode font instructions.
1090: */
1091:
1092: if (p->ps->flags & PS_BACKSP) {
1093: if (p->ps->last == '_') {
1.29 schwarze 1094: switch (p->ps->nextf) {
1095: case TERMFONT_BI:
1096: break;
1097: case TERMFONT_BOLD:
1098: p->ps->nextf = TERMFONT_BI;
1099: break;
1100: default:
1101: p->ps->nextf = TERMFONT_UNDER;
1102: }
1.32 schwarze 1103: p->ps->last = c;
1104: p->ps->flags &= ~PS_BACKSP;
1105: return;
1106: }
1107: if (p->ps->last == c) {
1.29 schwarze 1108: switch (p->ps->nextf) {
1109: case TERMFONT_BI:
1110: break;
1111: case TERMFONT_UNDER:
1112: p->ps->nextf = TERMFONT_BI;
1113: break;
1114: default:
1115: p->ps->nextf = TERMFONT_BOLD;
1.2 schwarze 1116: }
1.32 schwarze 1117: p->ps->flags &= ~PS_BACKSP;
1118: return;
1.2 schwarze 1119: }
1.32 schwarze 1120:
1121: /*
1122: * This is not a font instruction, but rather
1123: * the next character. Prepare for overstrike.
1124: */
1125:
1126: savecol = p->ps->pscol;
1127: } else
1128: savecol = SIZE_MAX;
1129:
1130: /*
1131: * We found the next character, so the font instructions
1132: * for the previous one are complete.
1133: * Use them and print it.
1134: */
1135:
1136: if (p->ps->last != '\0') {
1.29 schwarze 1137: if (p->ps->nextf != p->ps->lastf) {
1.2 schwarze 1138: ps_pclose(p);
1.29 schwarze 1139: ps_setfont(p, p->ps->nextf);
1.2 schwarze 1140: }
1.29 schwarze 1141: p->ps->nextf = TERMFONT_NONE;
1142: ps_pletter(p, p->ps->last);
1.2 schwarze 1143: }
1.32 schwarze 1144:
1145: /*
1146: * Do not print the current character yet because font
1147: * instructions might follow; only remember it.
1148: * For the first character, nothing else is done.
1149: * The final character will get printed from ps_fclose().
1150: */
1151:
1.29 schwarze 1152: p->ps->last = c;
1.32 schwarze 1153:
1154: /*
1155: * For an overstrike, back up to the previous position.
1156: */
1157:
1158: if (savecol != SIZE_MAX) {
1159: ps_pclose(p);
1160: p->ps->pscol = savecol;
1161: p->ps->flags &= ~PS_BACKSP;
1162: }
1.2 schwarze 1163: }
1164:
1165: static void
1.1 schwarze 1166: ps_advance(struct termp *p, size_t len)
1167: {
1168:
1.2 schwarze 1169: /*
1170: * Advance some spaces. This can probably be made smarter,
1171: * i.e., to have multiple space-separated words in the same
1172: * scope, but this is easier: just close out the current scope
1173: * and readjust our column settings.
1174: */
1.1 schwarze 1175:
1.2 schwarze 1176: ps_fclose(p);
1.17 schwarze 1177: p->ps->pscol += len;
1.1 schwarze 1178: }
1179:
1180: static void
1181: ps_endline(struct termp *p)
1182: {
1183:
1.2 schwarze 1184: /* Close out any scopes we have open: we're at eoln. */
1185:
1186: ps_fclose(p);
1187:
1188: /*
1189: * If we're in the margin, don't try to recalculate our current
1190: * row. XXX: if the column tries to be fancy with multiple
1.24 schwarze 1191: * lines, we'll do nasty stuff.
1.2 schwarze 1192: */
1.1 schwarze 1193:
1.17 schwarze 1194: if (PS_MARGINS & p->ps->flags)
1.6 schwarze 1195: return;
1196:
1197: /* Left-justify. */
1198:
1.17 schwarze 1199: p->ps->pscol = p->ps->left;
1.6 schwarze 1200:
1201: /* If we haven't printed anything, return. */
1202:
1.17 schwarze 1203: if (PS_NEWPAGE & p->ps->flags)
1.1 schwarze 1204: return;
1205:
1.2 schwarze 1206: /*
1207: * Put us down a line. If we're at the page bottom, spit out a
1208: * showpage and restart our row.
1209: */
1210:
1.24 schwarze 1211: if (p->ps->psrow >= p->ps->lineheight + p->ps->bottom) {
1.17 schwarze 1212: p->ps->psrow -= p->ps->lineheight;
1.1 schwarze 1213: return;
1214: }
1215:
1.7 schwarze 1216: ps_closepage(p);
1.1 schwarze 1217: }
1.2 schwarze 1218:
1219: static void
1220: ps_setfont(struct termp *p, enum termfont f)
1221: {
1222:
1.4 schwarze 1223: assert(f < TERMFONT__MAX);
1.17 schwarze 1224: p->ps->lastf = f;
1.24 schwarze 1225:
1.6 schwarze 1226: /*
1227: * If we're still at the top of the page, let the font-setting
1228: * be delayed until we actually have stuff to print.
1229: */
1230:
1.17 schwarze 1231: if (PS_NEWPAGE & p->ps->flags)
1.6 schwarze 1232: return;
1233:
1.7 schwarze 1234: if (TERMTYPE_PS == p->type)
1.24 schwarze 1235: ps_printf(p, "/%s %zu selectfont\n",
1236: fonts[(int)f].name, p->ps->scale);
1.7 schwarze 1237: else
1.24 schwarze 1238: ps_printf(p, "/F%d %zu Tf\n",
1239: (int)f, p->ps->scale);
1.2 schwarze 1240: }
1241:
1.3 schwarze 1242: static size_t
1.17 schwarze 1243: ps_width(const struct termp *p, int c)
1.3 schwarze 1244: {
1245:
1.4 schwarze 1246: if (c <= 32 || c - 32 >= MAXCHAR)
1.26 schwarze 1247: c = 0;
1248: else
1249: c -= 32;
1.4 schwarze 1250:
1.17 schwarze 1251: return((size_t)fonts[(int)TERMFONT_NONE].gly[c].wx);
1.6 schwarze 1252: }
1253:
1254: static double
1255: ps_hspan(const struct termp *p, const struct roffsu *su)
1256: {
1257: double r;
1.24 schwarze 1258:
1.6 schwarze 1259: /*
1260: * All of these measurements are derived by converting from the
1261: * native measurement to AFM units.
1262: */
1263: switch (su->unit) {
1.28 schwarze 1264: case SCALE_BU:
1265: /*
1266: * Traditionally, the default unit is fixed to the
1267: * output media. So this would refer to the point. In
1268: * mandoc(1), however, we stick to the default terminal
1269: * scaling unit so that output is the same regardless
1270: * the media.
1271: */
1272: r = PNT2AFM(p, su->scale * 72.0 / 240.0);
1273: break;
1.24 schwarze 1274: case SCALE_CM:
1.28 schwarze 1275: r = PNT2AFM(p, su->scale * 72.0 / 2.54);
1276: break;
1277: case SCALE_EM:
1278: r = su->scale *
1279: fonts[(int)TERMFONT_NONE].gly[109 - 32].wx;
1280: break;
1281: case SCALE_EN:
1282: r = su->scale *
1283: fonts[(int)TERMFONT_NONE].gly[110 - 32].wx;
1.6 schwarze 1284: break;
1.24 schwarze 1285: case SCALE_IN:
1.27 schwarze 1286: r = PNT2AFM(p, su->scale * 72.0);
1.6 schwarze 1287: break;
1.28 schwarze 1288: case SCALE_MM:
1289: r = su->scale *
1290: fonts[(int)TERMFONT_NONE].gly[109 - 32].wx / 100.0;
1291: break;
1.24 schwarze 1292: case SCALE_PC:
1.27 schwarze 1293: r = PNT2AFM(p, su->scale * 12.0);
1.6 schwarze 1294: break;
1.24 schwarze 1295: case SCALE_PT:
1.28 schwarze 1296: r = PNT2AFM(p, su->scale * 1.0);
1.6 schwarze 1297: break;
1.24 schwarze 1298: case SCALE_VS:
1.17 schwarze 1299: r = su->scale * p->ps->lineheight;
1.6 schwarze 1300: break;
1301: default:
1302: r = su->scale;
1303: break;
1304: }
1305:
1306: return(r);
1.17 schwarze 1307: }
1308:
1309: static void
1310: ps_growbuf(struct termp *p, size_t sz)
1311: {
1312: if (p->ps->psmargcur + sz <= p->ps->psmargsz)
1313: return;
1314:
1315: if (sz < PS_BUFSLOP)
1316: sz = PS_BUFSLOP;
1317:
1318: p->ps->psmargsz += sz;
1.25 schwarze 1319: p->ps->psmarg = mandoc_realloc(p->ps->psmarg, p->ps->psmargsz);
1.3 schwarze 1320: }