Annotation of mandoc/term_ps.c, Revision 1.68
1.68 ! schwarze 1: /* $Id: term_ps.c,v 1.67 2014/10/27 20:41:58 schwarze Exp $ */
1.1 kristaps 2: /*
1.53 schwarze 3: * Copyright (c) 2010, 2011 Kristaps Dzonsons <kristaps@bsd.lv>
1.57 schwarze 4: * Copyright (c) 2014 Ingo Schwarze <schwarze@openbsd.org>
1.1 kristaps 5: *
6: * Permission to use, copy, modify, and distribute this software for any
7: * purpose with or without fee is hereby granted, provided that the above
8: * copyright notice and this permission notice appear in all copies.
9: *
10: * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
11: * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
12: * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
13: * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
14: * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
15: * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
16: * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
17: */
18: #include "config.h"
19:
1.43 kristaps 20: #include <sys/types.h>
1.4 kristaps 21:
1.2 kristaps 22: #include <assert.h>
1.4 kristaps 23: #include <stdarg.h>
1.17 kristaps 24: #include <stdint.h>
1.2 kristaps 25: #include <stdio.h>
1.1 kristaps 26: #include <stdlib.h>
1.4 kristaps 27: #include <string.h>
1.26 kristaps 28: #include <unistd.h>
1.1 kristaps 29:
1.42 schwarze 30: #include "mandoc.h"
1.56 schwarze 31: #include "mandoc_aux.h"
1.1 kristaps 32: #include "out.h"
33: #include "main.h"
34: #include "term.h"
35:
1.50 kristaps 36: /* These work the buffer used by the header and footer. */
37: #define PS_BUFSLOP 128
38:
1.21 kristaps 39: /* Convert PostScript point "x" to an AFM unit. */
1.59 schwarze 40: #define PNT2AFM(p, x) \
1.50 kristaps 41: (size_t)((double)(x) * (1000.0 / (double)(p)->ps->scale))
1.21 kristaps 42:
43: /* Convert an AFM unit "x" to a PostScript points */
1.59 schwarze 44: #define AFM2PNT(p, x) \
1.50 kristaps 45: ((double)(x) / (1000.0 / (double)(p)->ps->scale))
1.21 kristaps 46:
1.13 kristaps 47: struct glyph {
1.36 kristaps 48: unsigned short wx; /* WX in AFM */
1.13 kristaps 49: };
50:
51: struct font {
52: const char *name; /* FontName in AFM */
1.15 kristaps 53: #define MAXCHAR 95 /* total characters we can handle */
1.13 kristaps 54: struct glyph gly[MAXCHAR]; /* glyph metrics */
55: };
56:
1.50 kristaps 57: struct termp_ps {
58: int flags;
59: #define PS_INLINE (1 << 0) /* we're in a word */
60: #define PS_MARGINS (1 << 1) /* we're in the margins */
61: #define PS_NEWPAGE (1 << 2) /* new page, no words yet */
1.67 schwarze 62: #define PS_BACKSP (1 << 3) /* last character was backspace */
1.50 kristaps 63: size_t pscol; /* visible column (AFM units) */
64: size_t psrow; /* visible row (AFM units) */
65: char *psmarg; /* margin buf */
66: size_t psmargsz; /* margin buf size */
67: size_t psmargcur; /* cur index in margin buf */
1.67 schwarze 68: char last; /* last non-backspace seen */
1.50 kristaps 69: enum termfont lastf; /* last set font */
1.65 schwarze 70: enum termfont nextf; /* building next font here */
1.50 kristaps 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) */
1.57 schwarze 78: size_t lastwidth; /* page width before last ll */
1.50 kristaps 79: size_t left; /* body left (AFM units) */
80: size_t header; /* header pos (AFM units) */
81: size_t footer; /* footer pos (AFM units) */
1.59 schwarze 82: size_t pdfbytes; /* current output byte */
1.50 kristaps 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:
89: static double ps_hspan(const struct termp *,
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);
1.55 joerg 102: #if __GNUC__ - 0 >= 4
103: __attribute__((__format__ (__printf__, 2, 3)))
104: #endif
1.50 kristaps 105: static void ps_printf(struct termp *, const char *, ...);
106: static void ps_putchar(struct termp *, char);
107: static void ps_setfont(struct termp *, enum termfont);
1.58 schwarze 108: static void ps_setwidth(struct termp *, int, size_t);
1.68 ! schwarze 109: static struct termp *pspdf_alloc(const struct mchars *, char *);
1.50 kristaps 110: static void pdf_obj(struct termp *, size_t);
111:
1.13 kristaps 112: /*
113: * We define, for the time being, three fonts: bold, oblique/italic, and
114: * normal (roman). The following table hard-codes the font metrics for
115: * ASCII, i.e., 32--127.
116: */
117:
1.16 kristaps 118: static const struct font fonts[TERMFONT__MAX] = {
1.24 kristaps 119: { "Times-Roman", {
120: { 250 },
121: { 333 },
122: { 408 },
123: { 500 },
124: { 500 },
125: { 833 },
126: { 778 },
127: { 333 },
128: { 333 },
129: { 333 },
130: { 500 },
131: { 564 },
132: { 250 },
133: { 333 },
134: { 250 },
135: { 278 },
136: { 500 },
137: { 500 },
138: { 500 },
139: { 500 },
140: { 500 },
141: { 500 },
142: { 500 },
143: { 500 },
144: { 500 },
145: { 500 },
146: { 278 },
147: { 278 },
148: { 564 },
149: { 564 },
150: { 564 },
151: { 444 },
152: { 921 },
153: { 722 },
154: { 667 },
155: { 667 },
156: { 722 },
157: { 611 },
158: { 556 },
159: { 722 },
160: { 722 },
161: { 333 },
162: { 389 },
163: { 722 },
164: { 611 },
165: { 889 },
166: { 722 },
167: { 722 },
168: { 556 },
169: { 722 },
170: { 667 },
171: { 556 },
172: { 611 },
173: { 722 },
174: { 722 },
175: { 944 },
176: { 722 },
177: { 722 },
178: { 611 },
179: { 333 },
180: { 278 },
181: { 333 },
182: { 469 },
183: { 500 },
184: { 333 },
185: { 444 },
186: { 500 },
187: { 444 },
188: { 500},
189: { 444},
190: { 333},
191: { 500},
192: { 500},
193: { 278},
194: { 278},
195: { 500},
196: { 278},
197: { 778},
198: { 500},
199: { 500},
200: { 500},
201: { 500},
202: { 333},
203: { 389},
204: { 278},
205: { 500},
206: { 500},
207: { 722},
208: { 500},
209: { 500},
210: { 444},
211: { 480},
212: { 200},
213: { 480},
214: { 541},
215: } },
216: { "Times-Bold", {
217: { 250 },
218: { 333 },
219: { 555 },
220: { 500 },
221: { 500 },
222: { 1000 },
223: { 833 },
224: { 333 },
225: { 333 },
226: { 333 },
227: { 500 },
228: { 570 },
229: { 250 },
230: { 333 },
231: { 250 },
232: { 278 },
233: { 500 },
234: { 500 },
235: { 500 },
236: { 500 },
237: { 500 },
238: { 500 },
239: { 500 },
240: { 500 },
241: { 500 },
242: { 500 },
243: { 333 },
244: { 333 },
245: { 570 },
246: { 570 },
247: { 570 },
248: { 500 },
249: { 930 },
250: { 722 },
251: { 667 },
252: { 722 },
253: { 722 },
254: { 667 },
255: { 611 },
256: { 778 },
257: { 778 },
258: { 389 },
259: { 500 },
260: { 778 },
261: { 667 },
262: { 944 },
263: { 722 },
264: { 778 },
265: { 611 },
266: { 778 },
267: { 722 },
268: { 556 },
269: { 667 },
270: { 722 },
271: { 722 },
272: { 1000 },
273: { 722 },
274: { 722 },
275: { 667 },
276: { 333 },
277: { 278 },
278: { 333 },
279: { 581 },
280: { 500 },
281: { 333 },
282: { 500 },
283: { 556 },
284: { 444 },
1.22 kristaps 285: { 556 },
1.24 kristaps 286: { 444 },
287: { 333 },
1.22 kristaps 288: { 500 },
1.24 kristaps 289: { 556 },
1.22 kristaps 290: { 278 },
1.24 kristaps 291: { 333 },
292: { 556 },
1.22 kristaps 293: { 278 },
1.24 kristaps 294: { 833 },
1.22 kristaps 295: { 556 },
1.24 kristaps 296: { 500 },
1.22 kristaps 297: { 556 },
298: { 556 },
299: { 444 },
1.24 kristaps 300: { 389 },
301: { 333 },
1.22 kristaps 302: { 556 },
303: { 500 },
1.24 kristaps 304: { 722 },
305: { 500 },
1.22 kristaps 306: { 500 },
1.24 kristaps 307: { 444 },
308: { 394 },
309: { 220 },
310: { 394 },
311: { 520 },
1.13 kristaps 312: } },
1.24 kristaps 313: { "Times-Italic", {
314: { 250 },
315: { 333 },
316: { 420 },
317: { 500 },
318: { 500 },
319: { 833 },
320: { 778 },
321: { 333 },
322: { 333 },
323: { 333 },
324: { 500 },
325: { 675 },
326: { 250 },
327: { 333 },
328: { 250 },
329: { 278 },
330: { 500 },
331: { 500 },
332: { 500 },
333: { 500 },
334: { 500 },
335: { 500 },
336: { 500 },
337: { 500 },
338: { 500 },
339: { 500 },
340: { 333 },
341: { 333 },
342: { 675 },
343: { 675 },
344: { 675 },
345: { 500 },
346: { 920 },
347: { 611 },
348: { 611 },
349: { 667 },
350: { 722 },
351: { 611 },
352: { 611 },
353: { 722 },
354: { 722 },
355: { 333 },
356: { 444 },
357: { 667 },
358: { 556 },
359: { 833 },
360: { 667 },
361: { 722 },
362: { 611 },
363: { 722 },
364: { 611 },
365: { 500 },
366: { 556 },
367: { 722 },
368: { 611 },
369: { 833 },
370: { 611 },
371: { 556 },
372: { 556 },
373: { 389 },
374: { 278 },
375: { 389 },
376: { 422 },
377: { 500 },
378: { 333 },
379: { 500 },
380: { 500 },
381: { 444 },
1.22 kristaps 382: { 500 },
1.24 kristaps 383: { 444 },
384: { 278 },
1.22 kristaps 385: { 500 },
386: { 500 },
387: { 278 },
1.24 kristaps 388: { 278 },
389: { 444 },
390: { 278 },
391: { 722 },
392: { 500 },
393: { 500 },
394: { 500 },
1.22 kristaps 395: { 500 },
1.24 kristaps 396: { 389 },
397: { 389 },
1.22 kristaps 398: { 278 },
399: { 500 },
1.24 kristaps 400: { 444 },
401: { 667 },
402: { 444 },
403: { 444 },
404: { 389 },
405: { 400 },
1.22 kristaps 406: { 275 },
1.24 kristaps 407: { 400 },
408: { 541 },
1.13 kristaps 409: } },
1.65 schwarze 410: { "Times-BoldItalic", {
411: { 250 },
412: { 389 },
413: { 555 },
414: { 500 },
415: { 500 },
416: { 833 },
417: { 778 },
418: { 333 },
419: { 333 },
420: { 333 },
421: { 500 },
422: { 570 },
423: { 250 },
424: { 333 },
425: { 250 },
426: { 278 },
427: { 500 },
428: { 500 },
429: { 500 },
430: { 500 },
431: { 500 },
432: { 500 },
433: { 500 },
434: { 500 },
435: { 500 },
436: { 500 },
437: { 333 },
438: { 333 },
439: { 570 },
440: { 570 },
441: { 570 },
442: { 500 },
443: { 832 },
444: { 667 },
445: { 667 },
446: { 667 },
447: { 722 },
448: { 667 },
449: { 667 },
450: { 722 },
451: { 778 },
452: { 389 },
453: { 500 },
454: { 667 },
455: { 611 },
456: { 889 },
457: { 722 },
458: { 722 },
459: { 611 },
460: { 722 },
461: { 667 },
462: { 556 },
463: { 611 },
464: { 722 },
465: { 667 },
466: { 889 },
467: { 667 },
468: { 611 },
469: { 611 },
470: { 333 },
471: { 278 },
472: { 333 },
473: { 570 },
474: { 500 },
475: { 333 },
476: { 500 },
477: { 500 },
478: { 444 },
479: { 500 },
480: { 444 },
481: { 333 },
482: { 500 },
483: { 556 },
484: { 278 },
485: { 278 },
486: { 500 },
487: { 278 },
488: { 778 },
489: { 556 },
490: { 500 },
491: { 500 },
492: { 500 },
493: { 389 },
494: { 389 },
495: { 278 },
496: { 556 },
497: { 444 },
498: { 667 },
499: { 500 },
500: { 444 },
501: { 389 },
502: { 348 },
503: { 220 },
504: { 348 },
505: { 570 },
506: } },
1.13 kristaps 507: };
508:
1.37 kristaps 509: void *
1.68 ! schwarze 510: pdf_alloc(const struct mchars *mchars, char *outopts)
1.37 kristaps 511: {
512: struct termp *p;
513:
1.68 ! schwarze 514: if (NULL != (p = pspdf_alloc(mchars, outopts)))
1.38 kristaps 515: p->type = TERMTYPE_PDF;
1.37 kristaps 516:
517: return(p);
518: }
1.2 kristaps 519:
1.1 kristaps 520: void *
1.68 ! schwarze 521: ps_alloc(const struct mchars *mchars, char *outopts)
1.1 kristaps 522: {
523: struct termp *p;
1.37 kristaps 524:
1.68 ! schwarze 525: if (NULL != (p = pspdf_alloc(mchars, outopts)))
1.38 kristaps 526: p->type = TERMTYPE_PS;
1.37 kristaps 527:
528: return(p);
529: }
530:
531: static struct termp *
1.68 ! schwarze 532: pspdf_alloc(const struct mchars *mchars, char *outopts)
1.37 kristaps 533: {
534: struct termp *p;
1.52 kristaps 535: unsigned int pagex, pagey;
536: size_t marginx, marginy, lineheight;
1.17 kristaps 537: const char *toks[2];
1.25 kristaps 538: const char *pp;
1.17 kristaps 539: char *v;
1.1 kristaps 540:
1.51 kristaps 541: p = mandoc_calloc(1, sizeof(struct termp));
1.68 ! schwarze 542: p->symtab = mchars;
1.51 kristaps 543: p->enc = TERMENC_ASCII;
1.50 kristaps 544: p->ps = mandoc_calloc(1, sizeof(struct termp_ps));
1.1 kristaps 545:
1.19 kristaps 546: p->advance = ps_advance;
1.2 kristaps 547: p->begin = ps_begin;
548: p->end = ps_end;
549: p->endline = ps_endline;
1.19 kristaps 550: p->hspan = ps_hspan;
551: p->letter = ps_letter;
1.57 schwarze 552: p->setwidth = ps_setwidth;
1.11 kristaps 553: p->width = ps_width;
1.59 schwarze 554:
1.17 kristaps 555: toks[0] = "paper";
556: toks[1] = NULL;
557:
1.25 kristaps 558: pp = NULL;
1.19 kristaps 559:
1.17 kristaps 560: while (outopts && *outopts)
561: switch (getsubopt(&outopts, UNCONST(toks), &v)) {
1.59 schwarze 562: case 0:
1.25 kristaps 563: pp = v;
1.17 kristaps 564: break;
565: default:
566: break;
567: }
1.16 kristaps 568:
1.25 kristaps 569: /* Default to US letter (millimetres). */
570:
1.31 kristaps 571: pagex = 216;
572: pagey = 279;
1.25 kristaps 573:
574: /*
575: * The ISO-269 paper sizes can be calculated automatically, but
576: * it would require bringing in -lm for pow() and I'd rather not
577: * do that. So just do it the easy way for now. Since this
578: * only happens once, I'm not terribly concerned.
579: */
580:
581: if (pp && strcasecmp(pp, "letter")) {
582: if (0 == strcasecmp(pp, "a3")) {
583: pagex = 297;
584: pagey = 420;
585: } else if (0 == strcasecmp(pp, "a4")) {
586: pagex = 210;
587: pagey = 297;
588: } else if (0 == strcasecmp(pp, "a5")) {
589: pagex = 148;
590: pagey = 210;
591: } else if (0 == strcasecmp(pp, "legal")) {
592: pagex = 216;
593: pagey = 356;
1.52 kristaps 594: } else if (2 != sscanf(pp, "%ux%u", &pagex, &pagey))
1.25 kristaps 595: fprintf(stderr, "%s: Unknown paper\n", pp);
1.54 schwarze 596: }
1.27 kristaps 597:
1.59 schwarze 598: /*
1.27 kristaps 599: * This MUST be defined before any PNT2AFM or AFM2PNT
600: * calculations occur.
601: */
602:
1.50 kristaps 603: p->ps->scale = 11;
1.27 kristaps 604:
1.25 kristaps 605: /* Remember millimetres -> AFM units. */
606:
607: pagex = PNT2AFM(p, ((double)pagex * 2.834));
608: pagey = PNT2AFM(p, ((double)pagey * 2.834));
609:
1.28 kristaps 610: /* Margins are 1/9 the page x and y. */
1.27 kristaps 611:
1.59 schwarze 612: marginx = (size_t)((double)pagex / 9.0);
613: marginy = (size_t)((double)pagey / 9.0);
1.27 kristaps 614:
1.31 kristaps 615: /* Line-height is 1.4em. */
616:
1.50 kristaps 617: lineheight = PNT2AFM(p, ((double)p->ps->scale * 1.4));
1.16 kristaps 618:
1.57 schwarze 619: p->ps->width = p->ps->lastwidth = (size_t)pagex;
1.52 kristaps 620: p->ps->height = (size_t)pagey;
1.50 kristaps 621: p->ps->header = pagey - (marginy / 2) - (lineheight / 2);
622: p->ps->top = pagey - marginy;
623: p->ps->footer = (marginy / 2) - (lineheight / 2);
624: p->ps->bottom = marginy;
625: p->ps->left = marginx;
626: p->ps->lineheight = lineheight;
1.16 kristaps 627:
1.28 kristaps 628: p->defrmargin = pagex - (marginx * 2);
1.1 kristaps 629: return(p);
1.57 schwarze 630: }
631:
632: static void
1.58 schwarze 633: ps_setwidth(struct termp *p, int iop, size_t width)
1.57 schwarze 634: {
635: size_t lastwidth;
636:
637: lastwidth = p->ps->width;
1.58 schwarze 638: if (0 < iop)
639: p->ps->width += width;
640: else if (0 > iop)
641: p->ps->width -= width;
642: else
643: p->ps->width = width ? width : p->ps->lastwidth;
1.57 schwarze 644: p->ps->lastwidth = lastwidth;
1.1 kristaps 645: }
646:
647: void
1.37 kristaps 648: pspdf_free(void *arg)
1.1 kristaps 649: {
1.4 kristaps 650: struct termp *p;
651:
652: p = (struct termp *)arg;
653:
1.50 kristaps 654: if (p->ps->psmarg)
655: free(p->ps->psmarg);
656: if (p->ps->pdfobjs)
657: free(p->ps->pdfobjs);
1.4 kristaps 658:
1.50 kristaps 659: free(p->ps);
1.4 kristaps 660: term_free(p);
661: }
662:
663: static void
664: ps_printf(struct termp *p, const char *fmt, ...)
665: {
666: va_list ap;
1.37 kristaps 667: int pos, len;
1.4 kristaps 668:
669: va_start(ap, fmt);
670:
671: /*
672: * If we're running in regular mode, then pipe directly into
673: * vprintf(). If we're processing margins, then push the data
674: * into our growable margin buffer.
675: */
1.1 kristaps 676:
1.50 kristaps 677: if ( ! (PS_MARGINS & p->ps->flags)) {
1.37 kristaps 678: len = vprintf(fmt, ap);
1.4 kristaps 679: va_end(ap);
1.59 schwarze 680: p->ps->pdfbytes += len < 0 ? 0 : (size_t)len;
1.4 kristaps 681: return;
682: }
683:
1.59 schwarze 684: /*
1.4 kristaps 685: * XXX: I assume that the in-margin print won't exceed
686: * PS_BUFSLOP (128 bytes), which is reasonable but still an
687: * assumption that will cause pukeage if it's not the case.
688: */
689:
1.40 joerg 690: ps_growbuf(p, PS_BUFSLOP);
1.4 kristaps 691:
1.50 kristaps 692: pos = (int)p->ps->psmargcur;
1.54 schwarze 693: vsnprintf(&p->ps->psmarg[pos], PS_BUFSLOP, fmt, ap);
1.5 kristaps 694:
695: va_end(ap);
1.37 kristaps 696:
1.50 kristaps 697: p->ps->psmargcur = strlen(p->ps->psmarg);
1.4 kristaps 698: }
699:
700: static void
701: ps_putchar(struct termp *p, char c)
702: {
703: int pos;
704:
705: /* See ps_printf(). */
706:
1.50 kristaps 707: if ( ! (PS_MARGINS & p->ps->flags)) {
1.4 kristaps 708: putchar(c);
1.50 kristaps 709: p->ps->pdfbytes++;
1.4 kristaps 710: return;
711: }
712:
1.40 joerg 713: ps_growbuf(p, 2);
1.4 kristaps 714:
1.50 kristaps 715: pos = (int)p->ps->psmargcur++;
716: p->ps->psmarg[pos++] = c;
717: p->ps->psmarg[pos] = '\0';
1.2 kristaps 718: }
719:
1.37 kristaps 720: static void
1.39 kristaps 721: pdf_obj(struct termp *p, size_t obj)
722: {
723:
724: assert(obj > 0);
725:
1.50 kristaps 726: if ((obj - 1) >= p->ps->pdfobjsz) {
727: p->ps->pdfobjsz = obj + 128;
1.60 schwarze 728: p->ps->pdfobjs = mandoc_reallocarray(p->ps->pdfobjs,
729: p->ps->pdfobjsz, sizeof(size_t));
1.39 kristaps 730: }
731:
1.50 kristaps 732: p->ps->pdfobjs[(int)obj - 1] = p->ps->pdfbytes;
1.39 kristaps 733: ps_printf(p, "%zu 0 obj\n", obj);
734: }
735:
736: static void
1.37 kristaps 737: ps_closepage(struct termp *p)
738: {
739: int i;
1.38 kristaps 740: size_t len, base;
741:
742: /*
743: * Close out a page that we've already flushed to output. In
744: * PostScript, we simply note that the page must be showed. In
745: * PDF, we must now create the Length, Resource, and Page node
746: * for the page contents.
747: */
1.37 kristaps 748:
1.50 kristaps 749: assert(p->ps->psmarg && p->ps->psmarg[0]);
750: ps_printf(p, "%s", p->ps->psmarg);
1.37 kristaps 751:
1.38 kristaps 752: if (TERMTYPE_PS != p->type) {
1.37 kristaps 753: ps_printf(p, "ET\n");
1.38 kristaps 754:
1.50 kristaps 755: len = p->ps->pdfbytes - p->ps->pdflastpg;
756: base = p->ps->pages * 4 + p->ps->pdfbody;
1.38 kristaps 757:
758: ps_printf(p, "endstream\nendobj\n");
759:
760: /* Length of content. */
1.39 kristaps 761: pdf_obj(p, base + 1);
1.38 kristaps 762: ps_printf(p, "%zu\nendobj\n", len);
763:
764: /* Resource for content. */
1.39 kristaps 765: pdf_obj(p, base + 2);
1.38 kristaps 766: ps_printf(p, "<<\n/ProcSet [/PDF /Text]\n");
1.37 kristaps 767: ps_printf(p, "/Font <<\n");
1.59 schwarze 768: for (i = 0; i < (int)TERMFONT__MAX; i++)
1.37 kristaps 769: ps_printf(p, "/F%d %d 0 R\n", i, 3 + i);
1.38 kristaps 770: ps_printf(p, ">>\n>>\n");
771:
772: /* Page node. */
1.39 kristaps 773: pdf_obj(p, base + 3);
774: ps_printf(p, "<<\n");
1.37 kristaps 775: ps_printf(p, "/Type /Page\n");
776: ps_printf(p, "/Parent 2 0 R\n");
1.38 kristaps 777: ps_printf(p, "/Resources %zu 0 R\n", base + 2);
778: ps_printf(p, "/Contents %zu 0 R\n", base);
779: ps_printf(p, ">>\nendobj\n");
780: } else
781: ps_printf(p, "showpage\n");
1.37 kristaps 782:
1.50 kristaps 783: p->ps->pages++;
784: p->ps->psrow = p->ps->top;
785: assert( ! (PS_NEWPAGE & p->ps->flags));
786: p->ps->flags |= PS_NEWPAGE;
1.37 kristaps 787: }
788:
1.2 kristaps 789: static void
790: ps_end(struct termp *p)
791: {
1.38 kristaps 792: size_t i, xref, base;
1.2 kristaps 793:
1.4 kristaps 794: /*
795: * At the end of the file, do one last showpage. This is the
796: * same behaviour as groff(1) and works for multiple pages as
797: * well as just one.
798: */
799:
1.50 kristaps 800: if ( ! (PS_NEWPAGE & p->ps->flags)) {
801: assert(0 == p->ps->flags);
802: assert('\0' == p->ps->last);
1.37 kristaps 803: ps_closepage(p);
1.30 kristaps 804: }
1.16 kristaps 805:
1.37 kristaps 806: if (TERMTYPE_PS == p->type) {
807: ps_printf(p, "%%%%Trailer\n");
1.50 kristaps 808: ps_printf(p, "%%%%Pages: %zu\n", p->ps->pages);
1.37 kristaps 809: ps_printf(p, "%%%%EOF\n");
810: return;
1.59 schwarze 811: }
1.37 kristaps 812:
1.39 kristaps 813: pdf_obj(p, 2);
814: ps_printf(p, "<<\n/Type /Pages\n");
1.37 kristaps 815: ps_printf(p, "/MediaBox [0 0 %zu %zu]\n",
1.50 kristaps 816: (size_t)AFM2PNT(p, p->ps->width),
817: (size_t)AFM2PNT(p, p->ps->height));
1.37 kristaps 818:
1.50 kristaps 819: ps_printf(p, "/Count %zu\n", p->ps->pages);
1.37 kristaps 820: ps_printf(p, "/Kids [");
821:
1.50 kristaps 822: for (i = 0; i < p->ps->pages; i++)
1.59 schwarze 823: ps_printf(p, " %zu 0 R", i * 4 + p->ps->pdfbody + 3);
1.38 kristaps 824:
1.59 schwarze 825: base = (p->ps->pages - 1) * 4 + p->ps->pdfbody + 4;
1.38 kristaps 826:
827: ps_printf(p, "]\n>>\nendobj\n");
1.39 kristaps 828: pdf_obj(p, base);
1.37 kristaps 829: ps_printf(p, "<<\n");
830: ps_printf(p, "/Type /Catalog\n");
831: ps_printf(p, "/Pages 2 0 R\n");
832: ps_printf(p, ">>\n");
1.50 kristaps 833: xref = p->ps->pdfbytes;
1.37 kristaps 834: ps_printf(p, "xref\n");
1.38 kristaps 835: ps_printf(p, "0 %zu\n", base + 1);
1.39 kristaps 836: ps_printf(p, "0000000000 65535 f \n");
837:
838: for (i = 0; i < base; i++)
1.59 schwarze 839: ps_printf(p, "%.10zu 00000 n \n",
840: p->ps->pdfobjs[(int)i]);
1.39 kristaps 841:
1.37 kristaps 842: ps_printf(p, "trailer\n");
843: ps_printf(p, "<<\n");
1.38 kristaps 844: ps_printf(p, "/Size %zu\n", base + 1);
845: ps_printf(p, "/Root %zu 0 R\n", base);
1.37 kristaps 846: ps_printf(p, "/Info 1 0 R\n");
847: ps_printf(p, ">>\n");
848: ps_printf(p, "startxref\n");
849: ps_printf(p, "%zu\n", xref);
850: ps_printf(p, "%%%%EOF\n");
1.2 kristaps 851: }
852:
853: static void
854: ps_begin(struct termp *p)
855: {
1.16 kristaps 856: int i;
1.2 kristaps 857:
1.59 schwarze 858: /*
1.9 kristaps 859: * Print margins into margin buffer. Nothing gets output to the
860: * screen yet, so we don't need to initialise the primary state.
1.2 kristaps 861: */
862:
1.50 kristaps 863: if (p->ps->psmarg) {
864: assert(p->ps->psmargsz);
865: p->ps->psmarg[0] = '\0';
1.4 kristaps 866: }
867:
1.50 kristaps 868: /*p->ps->pdfbytes = 0;*/
869: p->ps->psmargcur = 0;
870: p->ps->flags = PS_MARGINS;
871: p->ps->pscol = p->ps->left;
872: p->ps->psrow = p->ps->header;
1.4 kristaps 873:
1.9 kristaps 874: ps_setfont(p, TERMFONT_NONE);
1.4 kristaps 875:
876: (*p->headf)(p, p->argf);
877: (*p->endline)(p);
878:
1.50 kristaps 879: p->ps->pscol = p->ps->left;
880: p->ps->psrow = p->ps->footer;
1.4 kristaps 881:
882: (*p->footf)(p, p->argf);
883: (*p->endline)(p);
884:
1.50 kristaps 885: p->ps->flags &= ~PS_MARGINS;
1.9 kristaps 886:
1.50 kristaps 887: assert(0 == p->ps->flags);
888: assert(p->ps->psmarg);
889: assert('\0' != p->ps->psmarg[0]);
1.9 kristaps 890:
1.59 schwarze 891: /*
1.9 kristaps 892: * Print header and initialise page state. Following this,
893: * stuff gets printed to the screen, so make sure we're sane.
894: */
1.4 kristaps 895:
1.37 kristaps 896: if (TERMTYPE_PS == p->type) {
897: ps_printf(p, "%%!PS-Adobe-3.0\n");
898: ps_printf(p, "%%%%DocumentData: Clean7Bit\n");
899: ps_printf(p, "%%%%Orientation: Portrait\n");
900: ps_printf(p, "%%%%Pages: (atend)\n");
901: ps_printf(p, "%%%%PageOrder: Ascend\n");
902: ps_printf(p, "%%%%DocumentMedia: "
1.59 schwarze 903: "Default %zu %zu 0 () ()\n",
904: (size_t)AFM2PNT(p, p->ps->width),
905: (size_t)AFM2PNT(p, p->ps->height));
1.37 kristaps 906: ps_printf(p, "%%%%DocumentNeededResources: font");
907:
908: for (i = 0; i < (int)TERMFONT__MAX; i++)
909: ps_printf(p, " %s", fonts[i].name);
910:
911: ps_printf(p, "\n%%%%EndComments\n");
912: } else {
913: ps_printf(p, "%%PDF-1.1\n");
1.39 kristaps 914: pdf_obj(p, 1);
1.37 kristaps 915: ps_printf(p, "<<\n");
916: ps_printf(p, ">>\n");
917: ps_printf(p, "endobj\n");
918:
919: for (i = 0; i < (int)TERMFONT__MAX; i++) {
1.39 kristaps 920: pdf_obj(p, (size_t)i + 3);
1.37 kristaps 921: ps_printf(p, "<<\n");
922: ps_printf(p, "/Type /Font\n");
923: ps_printf(p, "/Subtype /Type1\n");
1.55 joerg 924: ps_printf(p, "/Name /F%d\n", i);
1.37 kristaps 925: ps_printf(p, "/BaseFont /%s\n", fonts[i].name);
926: ps_printf(p, ">>\n");
927: }
928: }
1.16 kristaps 929:
1.50 kristaps 930: p->ps->pdfbody = (size_t)TERMFONT__MAX + 3;
931: p->ps->pscol = p->ps->left;
932: p->ps->psrow = p->ps->top;
933: p->ps->flags |= PS_NEWPAGE;
1.33 kristaps 934: ps_setfont(p, TERMFONT_NONE);
1.2 kristaps 935: }
936:
937: static void
1.13 kristaps 938: ps_pletter(struct termp *p, int c)
1.2 kristaps 939: {
1.14 kristaps 940: int f;
1.32 kristaps 941:
1.9 kristaps 942: /*
1.32 kristaps 943: * If we haven't opened a page context, then output that we're
944: * in a new page and make sure the font is correctly set.
1.9 kristaps 945: */
946:
1.50 kristaps 947: if (PS_NEWPAGE & p->ps->flags) {
1.37 kristaps 948: if (TERMTYPE_PS == p->type) {
1.59 schwarze 949: ps_printf(p, "%%%%Page: %zu %zu\n",
950: p->ps->pages + 1, p->ps->pages + 1);
951: ps_printf(p, "/%s %zu selectfont\n",
952: fonts[(int)p->ps->lastf].name,
953: p->ps->scale);
1.37 kristaps 954: } else {
1.59 schwarze 955: pdf_obj(p, p->ps->pdfbody +
956: p->ps->pages * 4);
1.37 kristaps 957: ps_printf(p, "<<\n");
1.59 schwarze 958: ps_printf(p, "/Length %zu 0 R\n",
959: p->ps->pdfbody + 1 + p->ps->pages * 4);
1.37 kristaps 960: ps_printf(p, ">>\nstream\n");
961: }
1.50 kristaps 962: p->ps->pdflastpg = p->ps->pdfbytes;
963: p->ps->flags &= ~PS_NEWPAGE;
1.32 kristaps 964: }
1.59 schwarze 965:
1.32 kristaps 966: /*
967: * If we're not in a PostScript "word" context, then open one
968: * now at the current cursor.
969: */
1.30 kristaps 970:
1.50 kristaps 971: if ( ! (PS_INLINE & p->ps->flags)) {
1.37 kristaps 972: if (TERMTYPE_PS != p->type) {
1.59 schwarze 973: ps_printf(p, "BT\n/F%d %zu Tf\n",
974: (int)p->ps->lastf, p->ps->scale);
1.37 kristaps 975: ps_printf(p, "%.3f %.3f Td\n(",
1.59 schwarze 976: AFM2PNT(p, p->ps->pscol),
977: AFM2PNT(p, p->ps->psrow));
1.37 kristaps 978: } else
1.59 schwarze 979: ps_printf(p, "%.3f %.3f moveto\n(",
980: AFM2PNT(p, p->ps->pscol),
981: AFM2PNT(p, p->ps->psrow));
1.50 kristaps 982: p->ps->flags |= PS_INLINE;
1.2 kristaps 983: }
984:
1.50 kristaps 985: assert( ! (PS_NEWPAGE & p->ps->flags));
1.29 kristaps 986:
1.2 kristaps 987: /*
988: * We need to escape these characters as per the PostScript
989: * specification. We would also escape non-graphable characters
990: * (like tabs), but none of them would get to this point and
991: * it's superfluous to abort() on them.
992: */
993:
994: switch (c) {
1.59 schwarze 995: case '(':
1.2 kristaps 996: /* FALLTHROUGH */
1.59 schwarze 997: case ')':
1.2 kristaps 998: /* FALLTHROUGH */
1.59 schwarze 999: case '\\':
1.4 kristaps 1000: ps_putchar(p, '\\');
1.2 kristaps 1001: break;
1002: default:
1003: break;
1004: }
1005:
1006: /* Write the character and adjust where we are on the page. */
1.9 kristaps 1007:
1.50 kristaps 1008: f = (int)p->ps->lastf;
1.13 kristaps 1009:
1.61 schwarze 1010: if (c <= 32 || c - 32 >= MAXCHAR)
1011: c = 32;
1.13 kristaps 1012:
1.25 kristaps 1013: ps_putchar(p, (char)c);
1.14 kristaps 1014: c -= 32;
1.50 kristaps 1015: p->ps->pscol += (size_t)fonts[f].gly[c].wx;
1.2 kristaps 1016: }
1017:
1018: static void
1.9 kristaps 1019: ps_pclose(struct termp *p)
1020: {
1021:
1.59 schwarze 1022: /*
1.9 kristaps 1023: * Spit out that we're exiting a word context (this is a
1024: * "partial close" because we don't check the last-char buffer
1025: * or anything).
1026: */
1027:
1.50 kristaps 1028: if ( ! (PS_INLINE & p->ps->flags))
1.9 kristaps 1029: return;
1.59 schwarze 1030:
1.37 kristaps 1031: if (TERMTYPE_PS != p->type) {
1032: ps_printf(p, ") Tj\nET\n");
1033: } else
1034: ps_printf(p, ") show\n");
1035:
1.50 kristaps 1036: p->ps->flags &= ~PS_INLINE;
1.9 kristaps 1037: }
1038:
1039: static void
1040: ps_fclose(struct termp *p)
1041: {
1042:
1043: /*
1044: * Strong closure: if we have a last-char, spit it out after
1045: * checking that we're in the right font mode. This will of
1046: * course open a new scope, if applicable.
1047: *
1048: * Following this, close out any scope that's open.
1049: */
1050:
1.65 schwarze 1051: if (p->ps->last != '\0') {
1.67 schwarze 1052: assert( ! (p->ps->flags & PS_BACKSP));
1.65 schwarze 1053: if (p->ps->nextf != p->ps->lastf) {
1.9 kristaps 1054: ps_pclose(p);
1.65 schwarze 1055: ps_setfont(p, p->ps->nextf);
1.9 kristaps 1056: }
1.65 schwarze 1057: p->ps->nextf = TERMFONT_NONE;
1.50 kristaps 1058: ps_pletter(p, p->ps->last);
1059: p->ps->last = '\0';
1.9 kristaps 1060: }
1061:
1.50 kristaps 1062: if ( ! (PS_INLINE & p->ps->flags))
1.9 kristaps 1063: return;
1064:
1065: ps_pclose(p);
1066: }
1067:
1068: static void
1.49 kristaps 1069: ps_letter(struct termp *p, int arg)
1.8 kristaps 1070: {
1.67 schwarze 1071: size_t savecol;
1.65 schwarze 1072: char c;
1.49 kristaps 1073:
1074: c = arg >= 128 || arg <= 0 ? '?' : arg;
1.9 kristaps 1075:
1076: /*
1.67 schwarze 1077: * When receiving a backspace, merely flag it.
1078: * We don't know yet whether it is
1079: * a font instruction or an overstrike.
1.9 kristaps 1080: */
1081:
1.67 schwarze 1082: if (c == '\b') {
1.65 schwarze 1083: assert(p->ps->last != '\0');
1.67 schwarze 1084: assert( ! (p->ps->flags & PS_BACKSP));
1085: p->ps->flags |= PS_BACKSP;
1086: return;
1087: }
1088:
1089: /*
1090: * Decode font instructions.
1091: */
1092:
1093: if (p->ps->flags & PS_BACKSP) {
1094: if (p->ps->last == '_') {
1.65 schwarze 1095: switch (p->ps->nextf) {
1096: case TERMFONT_BI:
1097: break;
1098: case TERMFONT_BOLD:
1099: p->ps->nextf = TERMFONT_BI;
1100: break;
1101: default:
1102: p->ps->nextf = TERMFONT_UNDER;
1103: }
1.67 schwarze 1104: p->ps->last = c;
1105: p->ps->flags &= ~PS_BACKSP;
1106: return;
1107: }
1108: if (p->ps->last == c) {
1.65 schwarze 1109: switch (p->ps->nextf) {
1110: case TERMFONT_BI:
1111: break;
1112: case TERMFONT_UNDER:
1113: p->ps->nextf = TERMFONT_BI;
1114: break;
1115: default:
1116: p->ps->nextf = TERMFONT_BOLD;
1.9 kristaps 1117: }
1.67 schwarze 1118: p->ps->flags &= ~PS_BACKSP;
1119: return;
1.9 kristaps 1120: }
1.67 schwarze 1121:
1122: /*
1123: * This is not a font instruction, but rather
1124: * the next character. Prepare for overstrike.
1125: */
1126:
1127: savecol = p->ps->pscol;
1128: } else
1129: savecol = SIZE_MAX;
1130:
1131: /*
1132: * We found the next character, so the font instructions
1133: * for the previous one are complete.
1134: * Use them and print it.
1135: */
1136:
1137: if (p->ps->last != '\0') {
1.65 schwarze 1138: if (p->ps->nextf != p->ps->lastf) {
1.9 kristaps 1139: ps_pclose(p);
1.65 schwarze 1140: ps_setfont(p, p->ps->nextf);
1.9 kristaps 1141: }
1.65 schwarze 1142: p->ps->nextf = TERMFONT_NONE;
1143: ps_pletter(p, p->ps->last);
1.8 kristaps 1144: }
1.67 schwarze 1145:
1146: /*
1147: * Do not print the current character yet because font
1148: * instructions might follow; only remember it.
1149: * For the first character, nothing else is done.
1150: * The final character will get printed from ps_fclose().
1151: */
1152:
1.65 schwarze 1153: p->ps->last = c;
1.67 schwarze 1154:
1155: /*
1156: * For an overstrike, back up to the previous position.
1157: */
1158:
1159: if (savecol != SIZE_MAX) {
1160: ps_pclose(p);
1161: p->ps->pscol = savecol;
1162: p->ps->flags &= ~PS_BACKSP;
1163: }
1.8 kristaps 1164: }
1165:
1166: static void
1.2 kristaps 1167: ps_advance(struct termp *p, size_t len)
1168: {
1169:
1.9 kristaps 1170: /*
1171: * Advance some spaces. This can probably be made smarter,
1172: * i.e., to have multiple space-separated words in the same
1173: * scope, but this is easier: just close out the current scope
1174: * and readjust our column settings.
1175: */
1.8 kristaps 1176:
1.9 kristaps 1177: ps_fclose(p);
1.50 kristaps 1178: p->ps->pscol += len;
1.2 kristaps 1179: }
1180:
1181: static void
1182: ps_endline(struct termp *p)
1183: {
1.8 kristaps 1184:
1.9 kristaps 1185: /* Close out any scopes we have open: we're at eoln. */
1186:
1187: ps_fclose(p);
1.2 kristaps 1188:
1.9 kristaps 1189: /*
1190: * If we're in the margin, don't try to recalculate our current
1191: * row. XXX: if the column tries to be fancy with multiple
1.59 schwarze 1192: * lines, we'll do nasty stuff.
1.9 kristaps 1193: */
1.2 kristaps 1194:
1.50 kristaps 1195: if (PS_MARGINS & p->ps->flags)
1.29 kristaps 1196: return;
1197:
1198: /* Left-justify. */
1199:
1.50 kristaps 1200: p->ps->pscol = p->ps->left;
1.29 kristaps 1201:
1202: /* If we haven't printed anything, return. */
1203:
1.50 kristaps 1204: if (PS_NEWPAGE & p->ps->flags)
1.2 kristaps 1205: return;
1206:
1.9 kristaps 1207: /*
1208: * Put us down a line. If we're at the page bottom, spit out a
1209: * showpage and restart our row.
1210: */
1211:
1.59 schwarze 1212: if (p->ps->psrow >= p->ps->lineheight + p->ps->bottom) {
1.50 kristaps 1213: p->ps->psrow -= p->ps->lineheight;
1.2 kristaps 1214: return;
1215: }
1216:
1.37 kristaps 1217: ps_closepage(p);
1.1 kristaps 1218: }
1.9 kristaps 1219:
1220: static void
1221: ps_setfont(struct termp *p, enum termfont f)
1222: {
1223:
1.16 kristaps 1224: assert(f < TERMFONT__MAX);
1.50 kristaps 1225: p->ps->lastf = f;
1.59 schwarze 1226:
1.32 kristaps 1227: /*
1228: * If we're still at the top of the page, let the font-setting
1229: * be delayed until we actually have stuff to print.
1230: */
1231:
1.50 kristaps 1232: if (PS_NEWPAGE & p->ps->flags)
1.32 kristaps 1233: return;
1234:
1.37 kristaps 1235: if (TERMTYPE_PS == p->type)
1.59 schwarze 1236: ps_printf(p, "/%s %zu selectfont\n",
1237: fonts[(int)f].name, p->ps->scale);
1.37 kristaps 1238: else
1.59 schwarze 1239: ps_printf(p, "/F%d %zu Tf\n",
1240: (int)f, p->ps->scale);
1.9 kristaps 1241: }
1242:
1.11 kristaps 1243: static size_t
1.49 kristaps 1244: ps_width(const struct termp *p, int c)
1.11 kristaps 1245: {
1246:
1.14 kristaps 1247: if (c <= 32 || c - 32 >= MAXCHAR)
1.61 schwarze 1248: c = 0;
1249: else
1250: c -= 32;
1.14 kristaps 1251:
1.49 kristaps 1252: return((size_t)fonts[(int)TERMFONT_NONE].gly[c].wx);
1.11 kristaps 1253: }
1.19 kristaps 1254:
1.20 kristaps 1255: static double
1.19 kristaps 1256: ps_hspan(const struct termp *p, const struct roffsu *su)
1257: {
1258: double r;
1.59 schwarze 1259:
1.19 kristaps 1260: /*
1261: * All of these measurements are derived by converting from the
1.21 kristaps 1262: * native measurement to AFM units.
1.19 kristaps 1263: */
1264: switch (su->unit) {
1.64 kristaps 1265: case SCALE_BU:
1266: /*
1267: * Traditionally, the default unit is fixed to the
1268: * output media. So this would refer to the point. In
1269: * mandoc(1), however, we stick to the default terminal
1270: * scaling unit so that output is the same regardless
1271: * the media.
1272: */
1273: r = PNT2AFM(p, su->scale * 72.0 / 240.0);
1274: break;
1.59 schwarze 1275: case SCALE_CM:
1.64 kristaps 1276: r = PNT2AFM(p, su->scale * 72.0 / 2.54);
1277: break;
1278: case SCALE_EM:
1279: r = su->scale *
1280: fonts[(int)TERMFONT_NONE].gly[109 - 32].wx;
1281: break;
1282: case SCALE_EN:
1283: r = su->scale *
1284: fonts[(int)TERMFONT_NONE].gly[110 - 32].wx;
1.19 kristaps 1285: break;
1.59 schwarze 1286: case SCALE_IN:
1.62 schwarze 1287: r = PNT2AFM(p, su->scale * 72.0);
1.19 kristaps 1288: break;
1.64 kristaps 1289: case SCALE_MM:
1290: r = su->scale *
1291: fonts[(int)TERMFONT_NONE].gly[109 - 32].wx / 100.0;
1292: break;
1.59 schwarze 1293: case SCALE_PC:
1.62 schwarze 1294: r = PNT2AFM(p, su->scale * 12.0);
1.19 kristaps 1295: break;
1.59 schwarze 1296: case SCALE_PT:
1.64 kristaps 1297: r = PNT2AFM(p, su->scale * 1.0);
1.19 kristaps 1298: break;
1.59 schwarze 1299: case SCALE_VS:
1.50 kristaps 1300: r = su->scale * p->ps->lineheight;
1.19 kristaps 1301: break;
1302: default:
1303: r = su->scale;
1304: break;
1305: }
1306:
1.20 kristaps 1307: return(r);
1.50 kristaps 1308: }
1309:
1310: static void
1311: ps_growbuf(struct termp *p, size_t sz)
1312: {
1313: if (p->ps->psmargcur + sz <= p->ps->psmargsz)
1314: return;
1315:
1316: if (sz < PS_BUFSLOP)
1317: sz = PS_BUFSLOP;
1318:
1319: p->ps->psmargsz += sz;
1.60 schwarze 1320: p->ps->psmarg = mandoc_realloc(p->ps->psmarg, p->ps->psmargsz);
1.19 kristaps 1321: }
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