Annotation of mandoc/term_ps.c, Revision 1.70
1.70 ! schwarze 1: /* $Id: term_ps.c,v 1.69 2014/11/20 13:56:20 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:
1.56 schwarze 30: #include "mandoc_aux.h"
1.1 kristaps 31: #include "out.h"
1.70 ! schwarze 32: #include "term.h"
1.1 kristaps 33: #include "main.h"
34:
1.50 kristaps 35: /* These work the buffer used by the header and footer. */
36: #define PS_BUFSLOP 128
37:
1.21 kristaps 38: /* Convert PostScript point "x" to an AFM unit. */
1.59 schwarze 39: #define PNT2AFM(p, x) \
1.50 kristaps 40: (size_t)((double)(x) * (1000.0 / (double)(p)->ps->scale))
1.21 kristaps 41:
42: /* Convert an AFM unit "x" to a PostScript points */
1.59 schwarze 43: #define AFM2PNT(p, x) \
1.50 kristaps 44: ((double)(x) / (1000.0 / (double)(p)->ps->scale))
1.21 kristaps 45:
1.13 kristaps 46: struct glyph {
1.36 kristaps 47: unsigned short wx; /* WX in AFM */
1.13 kristaps 48: };
49:
50: struct font {
51: const char *name; /* FontName in AFM */
1.15 kristaps 52: #define MAXCHAR 95 /* total characters we can handle */
1.13 kristaps 53: struct glyph gly[MAXCHAR]; /* glyph metrics */
54: };
55:
1.50 kristaps 56: struct termp_ps {
57: int flags;
58: #define PS_INLINE (1 << 0) /* we're in a word */
59: #define PS_MARGINS (1 << 1) /* we're in the margins */
60: #define PS_NEWPAGE (1 << 2) /* new page, no words yet */
1.67 schwarze 61: #define PS_BACKSP (1 << 3) /* last character was backspace */
1.50 kristaps 62: size_t pscol; /* visible column (AFM units) */
63: size_t psrow; /* visible row (AFM units) */
64: char *psmarg; /* margin buf */
65: size_t psmargsz; /* margin buf size */
66: size_t psmargcur; /* cur index in margin buf */
1.67 schwarze 67: char last; /* last non-backspace seen */
1.50 kristaps 68: enum termfont lastf; /* last set font */
1.65 schwarze 69: enum termfont nextf; /* building next font here */
1.50 kristaps 70: size_t scale; /* font scaling factor */
71: size_t pages; /* number of pages shown */
72: size_t lineheight; /* line height (AFM units) */
73: size_t top; /* body top (AFM units) */
74: size_t bottom; /* body bottom (AFM units) */
75: size_t height; /* page height (AFM units */
76: size_t width; /* page width (AFM units) */
1.57 schwarze 77: size_t lastwidth; /* page width before last ll */
1.50 kristaps 78: size_t left; /* body left (AFM units) */
79: size_t header; /* header pos (AFM units) */
80: size_t footer; /* footer pos (AFM units) */
1.59 schwarze 81: size_t pdfbytes; /* current output byte */
1.50 kristaps 82: size_t pdflastpg; /* byte of last page mark */
83: size_t pdfbody; /* start of body object */
84: size_t *pdfobjs; /* table of object offsets */
85: size_t pdfobjsz; /* size of pdfobjs */
86: };
87:
88: static double ps_hspan(const struct termp *,
89: const struct roffsu *);
90: static size_t ps_width(const struct termp *, int);
91: static void ps_advance(struct termp *, size_t);
92: static void ps_begin(struct termp *);
93: static void ps_closepage(struct termp *);
94: static void ps_end(struct termp *);
95: static void ps_endline(struct termp *);
96: static void ps_fclose(struct termp *);
97: static void ps_growbuf(struct termp *, size_t);
98: static void ps_letter(struct termp *, int);
99: static void ps_pclose(struct termp *);
100: static void ps_pletter(struct termp *, int);
1.55 joerg 101: #if __GNUC__ - 0 >= 4
102: __attribute__((__format__ (__printf__, 2, 3)))
103: #endif
1.50 kristaps 104: static void ps_printf(struct termp *, const char *, ...);
105: static void ps_putchar(struct termp *, char);
106: static void ps_setfont(struct termp *, enum termfont);
1.58 schwarze 107: static void ps_setwidth(struct termp *, int, size_t);
1.68 schwarze 108: static struct termp *pspdf_alloc(const struct mchars *, char *);
1.50 kristaps 109: static void pdf_obj(struct termp *, size_t);
110:
1.13 kristaps 111: /*
112: * We define, for the time being, three fonts: bold, oblique/italic, and
113: * normal (roman). The following table hard-codes the font metrics for
114: * ASCII, i.e., 32--127.
115: */
116:
1.16 kristaps 117: static const struct font fonts[TERMFONT__MAX] = {
1.24 kristaps 118: { "Times-Roman", {
119: { 250 },
120: { 333 },
121: { 408 },
122: { 500 },
123: { 500 },
124: { 833 },
125: { 778 },
126: { 333 },
127: { 333 },
128: { 333 },
129: { 500 },
130: { 564 },
131: { 250 },
132: { 333 },
133: { 250 },
134: { 278 },
135: { 500 },
136: { 500 },
137: { 500 },
138: { 500 },
139: { 500 },
140: { 500 },
141: { 500 },
142: { 500 },
143: { 500 },
144: { 500 },
145: { 278 },
146: { 278 },
147: { 564 },
148: { 564 },
149: { 564 },
150: { 444 },
151: { 921 },
152: { 722 },
153: { 667 },
154: { 667 },
155: { 722 },
156: { 611 },
157: { 556 },
158: { 722 },
159: { 722 },
160: { 333 },
161: { 389 },
162: { 722 },
163: { 611 },
164: { 889 },
165: { 722 },
166: { 722 },
167: { 556 },
168: { 722 },
169: { 667 },
170: { 556 },
171: { 611 },
172: { 722 },
173: { 722 },
174: { 944 },
175: { 722 },
176: { 722 },
177: { 611 },
178: { 333 },
179: { 278 },
180: { 333 },
181: { 469 },
182: { 500 },
183: { 333 },
184: { 444 },
185: { 500 },
186: { 444 },
187: { 500},
188: { 444},
189: { 333},
190: { 500},
191: { 500},
192: { 278},
193: { 278},
194: { 500},
195: { 278},
196: { 778},
197: { 500},
198: { 500},
199: { 500},
200: { 500},
201: { 333},
202: { 389},
203: { 278},
204: { 500},
205: { 500},
206: { 722},
207: { 500},
208: { 500},
209: { 444},
210: { 480},
211: { 200},
212: { 480},
213: { 541},
214: } },
215: { "Times-Bold", {
216: { 250 },
217: { 333 },
218: { 555 },
219: { 500 },
220: { 500 },
221: { 1000 },
222: { 833 },
223: { 333 },
224: { 333 },
225: { 333 },
226: { 500 },
227: { 570 },
228: { 250 },
229: { 333 },
230: { 250 },
231: { 278 },
232: { 500 },
233: { 500 },
234: { 500 },
235: { 500 },
236: { 500 },
237: { 500 },
238: { 500 },
239: { 500 },
240: { 500 },
241: { 500 },
242: { 333 },
243: { 333 },
244: { 570 },
245: { 570 },
246: { 570 },
247: { 500 },
248: { 930 },
249: { 722 },
250: { 667 },
251: { 722 },
252: { 722 },
253: { 667 },
254: { 611 },
255: { 778 },
256: { 778 },
257: { 389 },
258: { 500 },
259: { 778 },
260: { 667 },
261: { 944 },
262: { 722 },
263: { 778 },
264: { 611 },
265: { 778 },
266: { 722 },
267: { 556 },
268: { 667 },
269: { 722 },
270: { 722 },
271: { 1000 },
272: { 722 },
273: { 722 },
274: { 667 },
275: { 333 },
276: { 278 },
277: { 333 },
278: { 581 },
279: { 500 },
280: { 333 },
281: { 500 },
282: { 556 },
283: { 444 },
1.22 kristaps 284: { 556 },
1.24 kristaps 285: { 444 },
286: { 333 },
1.22 kristaps 287: { 500 },
1.24 kristaps 288: { 556 },
1.22 kristaps 289: { 278 },
1.24 kristaps 290: { 333 },
291: { 556 },
1.22 kristaps 292: { 278 },
1.24 kristaps 293: { 833 },
1.22 kristaps 294: { 556 },
1.24 kristaps 295: { 500 },
1.22 kristaps 296: { 556 },
297: { 556 },
298: { 444 },
1.24 kristaps 299: { 389 },
300: { 333 },
1.22 kristaps 301: { 556 },
302: { 500 },
1.24 kristaps 303: { 722 },
304: { 500 },
1.22 kristaps 305: { 500 },
1.24 kristaps 306: { 444 },
307: { 394 },
308: { 220 },
309: { 394 },
310: { 520 },
1.13 kristaps 311: } },
1.24 kristaps 312: { "Times-Italic", {
313: { 250 },
314: { 333 },
315: { 420 },
316: { 500 },
317: { 500 },
318: { 833 },
319: { 778 },
320: { 333 },
321: { 333 },
322: { 333 },
323: { 500 },
324: { 675 },
325: { 250 },
326: { 333 },
327: { 250 },
328: { 278 },
329: { 500 },
330: { 500 },
331: { 500 },
332: { 500 },
333: { 500 },
334: { 500 },
335: { 500 },
336: { 500 },
337: { 500 },
338: { 500 },
339: { 333 },
340: { 333 },
341: { 675 },
342: { 675 },
343: { 675 },
344: { 500 },
345: { 920 },
346: { 611 },
347: { 611 },
348: { 667 },
349: { 722 },
350: { 611 },
351: { 611 },
352: { 722 },
353: { 722 },
354: { 333 },
355: { 444 },
356: { 667 },
357: { 556 },
358: { 833 },
359: { 667 },
360: { 722 },
361: { 611 },
362: { 722 },
363: { 611 },
364: { 500 },
365: { 556 },
366: { 722 },
367: { 611 },
368: { 833 },
369: { 611 },
370: { 556 },
371: { 556 },
372: { 389 },
373: { 278 },
374: { 389 },
375: { 422 },
376: { 500 },
377: { 333 },
378: { 500 },
379: { 500 },
380: { 444 },
1.22 kristaps 381: { 500 },
1.24 kristaps 382: { 444 },
383: { 278 },
1.22 kristaps 384: { 500 },
385: { 500 },
386: { 278 },
1.24 kristaps 387: { 278 },
388: { 444 },
389: { 278 },
390: { 722 },
391: { 500 },
392: { 500 },
393: { 500 },
1.22 kristaps 394: { 500 },
1.24 kristaps 395: { 389 },
396: { 389 },
1.22 kristaps 397: { 278 },
398: { 500 },
1.24 kristaps 399: { 444 },
400: { 667 },
401: { 444 },
402: { 444 },
403: { 389 },
404: { 400 },
1.22 kristaps 405: { 275 },
1.24 kristaps 406: { 400 },
407: { 541 },
1.13 kristaps 408: } },
1.65 schwarze 409: { "Times-BoldItalic", {
410: { 250 },
411: { 389 },
412: { 555 },
413: { 500 },
414: { 500 },
415: { 833 },
416: { 778 },
417: { 333 },
418: { 333 },
419: { 333 },
420: { 500 },
421: { 570 },
422: { 250 },
423: { 333 },
424: { 250 },
425: { 278 },
426: { 500 },
427: { 500 },
428: { 500 },
429: { 500 },
430: { 500 },
431: { 500 },
432: { 500 },
433: { 500 },
434: { 500 },
435: { 500 },
436: { 333 },
437: { 333 },
438: { 570 },
439: { 570 },
440: { 570 },
441: { 500 },
442: { 832 },
443: { 667 },
444: { 667 },
445: { 667 },
446: { 722 },
447: { 667 },
448: { 667 },
449: { 722 },
450: { 778 },
451: { 389 },
452: { 500 },
453: { 667 },
454: { 611 },
455: { 889 },
456: { 722 },
457: { 722 },
458: { 611 },
459: { 722 },
460: { 667 },
461: { 556 },
462: { 611 },
463: { 722 },
464: { 667 },
465: { 889 },
466: { 667 },
467: { 611 },
468: { 611 },
469: { 333 },
470: { 278 },
471: { 333 },
472: { 570 },
473: { 500 },
474: { 333 },
475: { 500 },
476: { 500 },
477: { 444 },
478: { 500 },
479: { 444 },
480: { 333 },
481: { 500 },
482: { 556 },
483: { 278 },
484: { 278 },
485: { 500 },
486: { 278 },
487: { 778 },
488: { 556 },
489: { 500 },
490: { 500 },
491: { 500 },
492: { 389 },
493: { 389 },
494: { 278 },
495: { 556 },
496: { 444 },
497: { 667 },
498: { 500 },
499: { 444 },
500: { 389 },
501: { 348 },
502: { 220 },
503: { 348 },
504: { 570 },
505: } },
1.13 kristaps 506: };
507:
1.37 kristaps 508: void *
1.68 schwarze 509: pdf_alloc(const struct mchars *mchars, char *outopts)
1.37 kristaps 510: {
511: struct termp *p;
512:
1.68 schwarze 513: if (NULL != (p = pspdf_alloc(mchars, outopts)))
1.38 kristaps 514: p->type = TERMTYPE_PDF;
1.37 kristaps 515:
516: return(p);
517: }
1.2 kristaps 518:
1.1 kristaps 519: void *
1.68 schwarze 520: ps_alloc(const struct mchars *mchars, char *outopts)
1.1 kristaps 521: {
522: struct termp *p;
1.37 kristaps 523:
1.68 schwarze 524: if (NULL != (p = pspdf_alloc(mchars, outopts)))
1.38 kristaps 525: p->type = TERMTYPE_PS;
1.37 kristaps 526:
527: return(p);
528: }
529:
530: static struct termp *
1.68 schwarze 531: pspdf_alloc(const struct mchars *mchars, char *outopts)
1.37 kristaps 532: {
533: struct termp *p;
1.52 kristaps 534: unsigned int pagex, pagey;
535: size_t marginx, marginy, lineheight;
1.17 kristaps 536: const char *toks[2];
1.25 kristaps 537: const char *pp;
1.17 kristaps 538: char *v;
1.1 kristaps 539:
1.51 kristaps 540: p = mandoc_calloc(1, sizeof(struct termp));
1.68 schwarze 541: p->symtab = mchars;
1.51 kristaps 542: p->enc = TERMENC_ASCII;
1.50 kristaps 543: p->ps = mandoc_calloc(1, sizeof(struct termp_ps));
1.1 kristaps 544:
1.19 kristaps 545: p->advance = ps_advance;
1.2 kristaps 546: p->begin = ps_begin;
547: p->end = ps_end;
548: p->endline = ps_endline;
1.19 kristaps 549: p->hspan = ps_hspan;
550: p->letter = ps_letter;
1.57 schwarze 551: p->setwidth = ps_setwidth;
1.11 kristaps 552: p->width = ps_width;
1.59 schwarze 553:
1.17 kristaps 554: toks[0] = "paper";
555: toks[1] = NULL;
556:
1.25 kristaps 557: pp = NULL;
1.19 kristaps 558:
1.17 kristaps 559: while (outopts && *outopts)
560: switch (getsubopt(&outopts, UNCONST(toks), &v)) {
1.59 schwarze 561: case 0:
1.25 kristaps 562: pp = v;
1.17 kristaps 563: break;
564: default:
565: break;
566: }
1.16 kristaps 567:
1.25 kristaps 568: /* Default to US letter (millimetres). */
569:
1.31 kristaps 570: pagex = 216;
571: pagey = 279;
1.25 kristaps 572:
573: /*
574: * The ISO-269 paper sizes can be calculated automatically, but
575: * it would require bringing in -lm for pow() and I'd rather not
576: * do that. So just do it the easy way for now. Since this
577: * only happens once, I'm not terribly concerned.
578: */
579:
580: if (pp && strcasecmp(pp, "letter")) {
581: if (0 == strcasecmp(pp, "a3")) {
582: pagex = 297;
583: pagey = 420;
584: } else if (0 == strcasecmp(pp, "a4")) {
585: pagex = 210;
586: pagey = 297;
587: } else if (0 == strcasecmp(pp, "a5")) {
588: pagex = 148;
589: pagey = 210;
590: } else if (0 == strcasecmp(pp, "legal")) {
591: pagex = 216;
592: pagey = 356;
1.52 kristaps 593: } else if (2 != sscanf(pp, "%ux%u", &pagex, &pagey))
1.25 kristaps 594: fprintf(stderr, "%s: Unknown paper\n", pp);
1.54 schwarze 595: }
1.27 kristaps 596:
1.59 schwarze 597: /*
1.27 kristaps 598: * This MUST be defined before any PNT2AFM or AFM2PNT
599: * calculations occur.
600: */
601:
1.50 kristaps 602: p->ps->scale = 11;
1.27 kristaps 603:
1.25 kristaps 604: /* Remember millimetres -> AFM units. */
605:
606: pagex = PNT2AFM(p, ((double)pagex * 2.834));
607: pagey = PNT2AFM(p, ((double)pagey * 2.834));
608:
1.28 kristaps 609: /* Margins are 1/9 the page x and y. */
1.27 kristaps 610:
1.59 schwarze 611: marginx = (size_t)((double)pagex / 9.0);
612: marginy = (size_t)((double)pagey / 9.0);
1.27 kristaps 613:
1.31 kristaps 614: /* Line-height is 1.4em. */
615:
1.50 kristaps 616: lineheight = PNT2AFM(p, ((double)p->ps->scale * 1.4));
1.16 kristaps 617:
1.57 schwarze 618: p->ps->width = p->ps->lastwidth = (size_t)pagex;
1.52 kristaps 619: p->ps->height = (size_t)pagey;
1.50 kristaps 620: p->ps->header = pagey - (marginy / 2) - (lineheight / 2);
621: p->ps->top = pagey - marginy;
622: p->ps->footer = (marginy / 2) - (lineheight / 2);
623: p->ps->bottom = marginy;
624: p->ps->left = marginx;
625: p->ps->lineheight = lineheight;
1.16 kristaps 626:
1.28 kristaps 627: p->defrmargin = pagex - (marginx * 2);
1.1 kristaps 628: return(p);
1.57 schwarze 629: }
630:
631: static void
1.58 schwarze 632: ps_setwidth(struct termp *p, int iop, size_t width)
1.57 schwarze 633: {
634: size_t lastwidth;
635:
636: lastwidth = p->ps->width;
1.69 schwarze 637: if (iop > 0)
1.58 schwarze 638: p->ps->width += width;
1.69 schwarze 639: else if (iop == 0)
640: p->ps->width = width ? width : p->ps->lastwidth;
641: else if (p->ps->width > width)
1.58 schwarze 642: p->ps->width -= width;
643: else
1.69 schwarze 644: p->ps->width = 0;
1.57 schwarze 645: p->ps->lastwidth = lastwidth;
1.1 kristaps 646: }
647:
648: void
1.37 kristaps 649: pspdf_free(void *arg)
1.1 kristaps 650: {
1.4 kristaps 651: struct termp *p;
652:
653: p = (struct termp *)arg;
654:
1.50 kristaps 655: if (p->ps->psmarg)
656: free(p->ps->psmarg);
657: if (p->ps->pdfobjs)
658: free(p->ps->pdfobjs);
1.4 kristaps 659:
1.50 kristaps 660: free(p->ps);
1.4 kristaps 661: term_free(p);
662: }
663:
664: static void
665: ps_printf(struct termp *p, const char *fmt, ...)
666: {
667: va_list ap;
1.37 kristaps 668: int pos, len;
1.4 kristaps 669:
670: va_start(ap, fmt);
671:
672: /*
673: * If we're running in regular mode, then pipe directly into
674: * vprintf(). If we're processing margins, then push the data
675: * into our growable margin buffer.
676: */
1.1 kristaps 677:
1.50 kristaps 678: if ( ! (PS_MARGINS & p->ps->flags)) {
1.37 kristaps 679: len = vprintf(fmt, ap);
1.4 kristaps 680: va_end(ap);
1.59 schwarze 681: p->ps->pdfbytes += len < 0 ? 0 : (size_t)len;
1.4 kristaps 682: return;
683: }
684:
1.59 schwarze 685: /*
1.4 kristaps 686: * XXX: I assume that the in-margin print won't exceed
687: * PS_BUFSLOP (128 bytes), which is reasonable but still an
688: * assumption that will cause pukeage if it's not the case.
689: */
690:
1.40 joerg 691: ps_growbuf(p, PS_BUFSLOP);
1.4 kristaps 692:
1.50 kristaps 693: pos = (int)p->ps->psmargcur;
1.54 schwarze 694: vsnprintf(&p->ps->psmarg[pos], PS_BUFSLOP, fmt, ap);
1.5 kristaps 695:
696: va_end(ap);
1.37 kristaps 697:
1.50 kristaps 698: p->ps->psmargcur = strlen(p->ps->psmarg);
1.4 kristaps 699: }
700:
701: static void
702: ps_putchar(struct termp *p, char c)
703: {
704: int pos;
705:
706: /* See ps_printf(). */
707:
1.50 kristaps 708: if ( ! (PS_MARGINS & p->ps->flags)) {
1.4 kristaps 709: putchar(c);
1.50 kristaps 710: p->ps->pdfbytes++;
1.4 kristaps 711: return;
712: }
713:
1.40 joerg 714: ps_growbuf(p, 2);
1.4 kristaps 715:
1.50 kristaps 716: pos = (int)p->ps->psmargcur++;
717: p->ps->psmarg[pos++] = c;
718: p->ps->psmarg[pos] = '\0';
1.2 kristaps 719: }
720:
1.37 kristaps 721: static void
1.39 kristaps 722: pdf_obj(struct termp *p, size_t obj)
723: {
724:
725: assert(obj > 0);
726:
1.50 kristaps 727: if ((obj - 1) >= p->ps->pdfobjsz) {
728: p->ps->pdfobjsz = obj + 128;
1.60 schwarze 729: p->ps->pdfobjs = mandoc_reallocarray(p->ps->pdfobjs,
730: p->ps->pdfobjsz, sizeof(size_t));
1.39 kristaps 731: }
732:
1.50 kristaps 733: p->ps->pdfobjs[(int)obj - 1] = p->ps->pdfbytes;
1.39 kristaps 734: ps_printf(p, "%zu 0 obj\n", obj);
735: }
736:
737: static void
1.37 kristaps 738: ps_closepage(struct termp *p)
739: {
740: int i;
1.38 kristaps 741: size_t len, base;
742:
743: /*
744: * Close out a page that we've already flushed to output. In
745: * PostScript, we simply note that the page must be showed. In
746: * PDF, we must now create the Length, Resource, and Page node
747: * for the page contents.
748: */
1.37 kristaps 749:
1.50 kristaps 750: assert(p->ps->psmarg && p->ps->psmarg[0]);
751: ps_printf(p, "%s", p->ps->psmarg);
1.37 kristaps 752:
1.38 kristaps 753: if (TERMTYPE_PS != p->type) {
1.37 kristaps 754: ps_printf(p, "ET\n");
1.38 kristaps 755:
1.50 kristaps 756: len = p->ps->pdfbytes - p->ps->pdflastpg;
757: base = p->ps->pages * 4 + p->ps->pdfbody;
1.38 kristaps 758:
759: ps_printf(p, "endstream\nendobj\n");
760:
761: /* Length of content. */
1.39 kristaps 762: pdf_obj(p, base + 1);
1.38 kristaps 763: ps_printf(p, "%zu\nendobj\n", len);
764:
765: /* Resource for content. */
1.39 kristaps 766: pdf_obj(p, base + 2);
1.38 kristaps 767: ps_printf(p, "<<\n/ProcSet [/PDF /Text]\n");
1.37 kristaps 768: ps_printf(p, "/Font <<\n");
1.59 schwarze 769: for (i = 0; i < (int)TERMFONT__MAX; i++)
1.37 kristaps 770: ps_printf(p, "/F%d %d 0 R\n", i, 3 + i);
1.38 kristaps 771: ps_printf(p, ">>\n>>\n");
772:
773: /* Page node. */
1.39 kristaps 774: pdf_obj(p, base + 3);
775: ps_printf(p, "<<\n");
1.37 kristaps 776: ps_printf(p, "/Type /Page\n");
777: ps_printf(p, "/Parent 2 0 R\n");
1.38 kristaps 778: ps_printf(p, "/Resources %zu 0 R\n", base + 2);
779: ps_printf(p, "/Contents %zu 0 R\n", base);
780: ps_printf(p, ">>\nendobj\n");
781: } else
782: ps_printf(p, "showpage\n");
1.37 kristaps 783:
1.50 kristaps 784: p->ps->pages++;
785: p->ps->psrow = p->ps->top;
786: assert( ! (PS_NEWPAGE & p->ps->flags));
787: p->ps->flags |= PS_NEWPAGE;
1.37 kristaps 788: }
789:
1.2 kristaps 790: static void
791: ps_end(struct termp *p)
792: {
1.38 kristaps 793: size_t i, xref, base;
1.2 kristaps 794:
1.4 kristaps 795: /*
796: * At the end of the file, do one last showpage. This is the
797: * same behaviour as groff(1) and works for multiple pages as
798: * well as just one.
799: */
800:
1.50 kristaps 801: if ( ! (PS_NEWPAGE & p->ps->flags)) {
802: assert(0 == p->ps->flags);
803: assert('\0' == p->ps->last);
1.37 kristaps 804: ps_closepage(p);
1.30 kristaps 805: }
1.16 kristaps 806:
1.37 kristaps 807: if (TERMTYPE_PS == p->type) {
808: ps_printf(p, "%%%%Trailer\n");
1.50 kristaps 809: ps_printf(p, "%%%%Pages: %zu\n", p->ps->pages);
1.37 kristaps 810: ps_printf(p, "%%%%EOF\n");
811: return;
1.59 schwarze 812: }
1.37 kristaps 813:
1.39 kristaps 814: pdf_obj(p, 2);
815: ps_printf(p, "<<\n/Type /Pages\n");
1.37 kristaps 816: ps_printf(p, "/MediaBox [0 0 %zu %zu]\n",
1.50 kristaps 817: (size_t)AFM2PNT(p, p->ps->width),
818: (size_t)AFM2PNT(p, p->ps->height));
1.37 kristaps 819:
1.50 kristaps 820: ps_printf(p, "/Count %zu\n", p->ps->pages);
1.37 kristaps 821: ps_printf(p, "/Kids [");
822:
1.50 kristaps 823: for (i = 0; i < p->ps->pages; i++)
1.59 schwarze 824: ps_printf(p, " %zu 0 R", i * 4 + p->ps->pdfbody + 3);
1.38 kristaps 825:
1.59 schwarze 826: base = (p->ps->pages - 1) * 4 + p->ps->pdfbody + 4;
1.38 kristaps 827:
828: ps_printf(p, "]\n>>\nendobj\n");
1.39 kristaps 829: pdf_obj(p, base);
1.37 kristaps 830: ps_printf(p, "<<\n");
831: ps_printf(p, "/Type /Catalog\n");
832: ps_printf(p, "/Pages 2 0 R\n");
833: ps_printf(p, ">>\n");
1.50 kristaps 834: xref = p->ps->pdfbytes;
1.37 kristaps 835: ps_printf(p, "xref\n");
1.38 kristaps 836: ps_printf(p, "0 %zu\n", base + 1);
1.39 kristaps 837: ps_printf(p, "0000000000 65535 f \n");
838:
839: for (i = 0; i < base; i++)
1.59 schwarze 840: ps_printf(p, "%.10zu 00000 n \n",
841: p->ps->pdfobjs[(int)i]);
1.39 kristaps 842:
1.37 kristaps 843: ps_printf(p, "trailer\n");
844: ps_printf(p, "<<\n");
1.38 kristaps 845: ps_printf(p, "/Size %zu\n", base + 1);
846: ps_printf(p, "/Root %zu 0 R\n", base);
1.37 kristaps 847: ps_printf(p, "/Info 1 0 R\n");
848: ps_printf(p, ">>\n");
849: ps_printf(p, "startxref\n");
850: ps_printf(p, "%zu\n", xref);
851: ps_printf(p, "%%%%EOF\n");
1.2 kristaps 852: }
853:
854: static void
855: ps_begin(struct termp *p)
856: {
1.16 kristaps 857: int i;
1.2 kristaps 858:
1.59 schwarze 859: /*
1.9 kristaps 860: * Print margins into margin buffer. Nothing gets output to the
861: * screen yet, so we don't need to initialise the primary state.
1.2 kristaps 862: */
863:
1.50 kristaps 864: if (p->ps->psmarg) {
865: assert(p->ps->psmargsz);
866: p->ps->psmarg[0] = '\0';
1.4 kristaps 867: }
868:
1.50 kristaps 869: /*p->ps->pdfbytes = 0;*/
870: p->ps->psmargcur = 0;
871: p->ps->flags = PS_MARGINS;
872: p->ps->pscol = p->ps->left;
873: p->ps->psrow = p->ps->header;
1.4 kristaps 874:
1.9 kristaps 875: ps_setfont(p, TERMFONT_NONE);
1.4 kristaps 876:
877: (*p->headf)(p, p->argf);
878: (*p->endline)(p);
879:
1.50 kristaps 880: p->ps->pscol = p->ps->left;
881: p->ps->psrow = p->ps->footer;
1.4 kristaps 882:
883: (*p->footf)(p, p->argf);
884: (*p->endline)(p);
885:
1.50 kristaps 886: p->ps->flags &= ~PS_MARGINS;
1.9 kristaps 887:
1.50 kristaps 888: assert(0 == p->ps->flags);
889: assert(p->ps->psmarg);
890: assert('\0' != p->ps->psmarg[0]);
1.9 kristaps 891:
1.59 schwarze 892: /*
1.9 kristaps 893: * Print header and initialise page state. Following this,
894: * stuff gets printed to the screen, so make sure we're sane.
895: */
1.4 kristaps 896:
1.37 kristaps 897: if (TERMTYPE_PS == p->type) {
898: ps_printf(p, "%%!PS-Adobe-3.0\n");
899: ps_printf(p, "%%%%DocumentData: Clean7Bit\n");
900: ps_printf(p, "%%%%Orientation: Portrait\n");
901: ps_printf(p, "%%%%Pages: (atend)\n");
902: ps_printf(p, "%%%%PageOrder: Ascend\n");
903: ps_printf(p, "%%%%DocumentMedia: "
1.59 schwarze 904: "Default %zu %zu 0 () ()\n",
905: (size_t)AFM2PNT(p, p->ps->width),
906: (size_t)AFM2PNT(p, p->ps->height));
1.37 kristaps 907: ps_printf(p, "%%%%DocumentNeededResources: font");
908:
909: for (i = 0; i < (int)TERMFONT__MAX; i++)
910: ps_printf(p, " %s", fonts[i].name);
911:
912: ps_printf(p, "\n%%%%EndComments\n");
913: } else {
914: ps_printf(p, "%%PDF-1.1\n");
1.39 kristaps 915: pdf_obj(p, 1);
1.37 kristaps 916: ps_printf(p, "<<\n");
917: ps_printf(p, ">>\n");
918: ps_printf(p, "endobj\n");
919:
920: for (i = 0; i < (int)TERMFONT__MAX; i++) {
1.39 kristaps 921: pdf_obj(p, (size_t)i + 3);
1.37 kristaps 922: ps_printf(p, "<<\n");
923: ps_printf(p, "/Type /Font\n");
924: ps_printf(p, "/Subtype /Type1\n");
1.55 joerg 925: ps_printf(p, "/Name /F%d\n", i);
1.37 kristaps 926: ps_printf(p, "/BaseFont /%s\n", fonts[i].name);
927: ps_printf(p, ">>\n");
928: }
929: }
1.16 kristaps 930:
1.50 kristaps 931: p->ps->pdfbody = (size_t)TERMFONT__MAX + 3;
932: p->ps->pscol = p->ps->left;
933: p->ps->psrow = p->ps->top;
934: p->ps->flags |= PS_NEWPAGE;
1.33 kristaps 935: ps_setfont(p, TERMFONT_NONE);
1.2 kristaps 936: }
937:
938: static void
1.13 kristaps 939: ps_pletter(struct termp *p, int c)
1.2 kristaps 940: {
1.14 kristaps 941: int f;
1.32 kristaps 942:
1.9 kristaps 943: /*
1.32 kristaps 944: * If we haven't opened a page context, then output that we're
945: * in a new page and make sure the font is correctly set.
1.9 kristaps 946: */
947:
1.50 kristaps 948: if (PS_NEWPAGE & p->ps->flags) {
1.37 kristaps 949: if (TERMTYPE_PS == p->type) {
1.59 schwarze 950: ps_printf(p, "%%%%Page: %zu %zu\n",
951: p->ps->pages + 1, p->ps->pages + 1);
952: ps_printf(p, "/%s %zu selectfont\n",
953: fonts[(int)p->ps->lastf].name,
954: p->ps->scale);
1.37 kristaps 955: } else {
1.59 schwarze 956: pdf_obj(p, p->ps->pdfbody +
957: p->ps->pages * 4);
1.37 kristaps 958: ps_printf(p, "<<\n");
1.59 schwarze 959: ps_printf(p, "/Length %zu 0 R\n",
960: p->ps->pdfbody + 1 + p->ps->pages * 4);
1.37 kristaps 961: ps_printf(p, ">>\nstream\n");
962: }
1.50 kristaps 963: p->ps->pdflastpg = p->ps->pdfbytes;
964: p->ps->flags &= ~PS_NEWPAGE;
1.32 kristaps 965: }
1.59 schwarze 966:
1.32 kristaps 967: /*
968: * If we're not in a PostScript "word" context, then open one
969: * now at the current cursor.
970: */
1.30 kristaps 971:
1.50 kristaps 972: if ( ! (PS_INLINE & p->ps->flags)) {
1.37 kristaps 973: if (TERMTYPE_PS != p->type) {
1.59 schwarze 974: ps_printf(p, "BT\n/F%d %zu Tf\n",
975: (int)p->ps->lastf, p->ps->scale);
1.37 kristaps 976: ps_printf(p, "%.3f %.3f Td\n(",
1.59 schwarze 977: AFM2PNT(p, p->ps->pscol),
978: AFM2PNT(p, p->ps->psrow));
1.37 kristaps 979: } else
1.59 schwarze 980: ps_printf(p, "%.3f %.3f moveto\n(",
981: AFM2PNT(p, p->ps->pscol),
982: AFM2PNT(p, p->ps->psrow));
1.50 kristaps 983: p->ps->flags |= PS_INLINE;
1.2 kristaps 984: }
985:
1.50 kristaps 986: assert( ! (PS_NEWPAGE & p->ps->flags));
1.29 kristaps 987:
1.2 kristaps 988: /*
989: * We need to escape these characters as per the PostScript
990: * specification. We would also escape non-graphable characters
991: * (like tabs), but none of them would get to this point and
992: * it's superfluous to abort() on them.
993: */
994:
995: switch (c) {
1.59 schwarze 996: case '(':
1.2 kristaps 997: /* FALLTHROUGH */
1.59 schwarze 998: case ')':
1.2 kristaps 999: /* FALLTHROUGH */
1.59 schwarze 1000: case '\\':
1.4 kristaps 1001: ps_putchar(p, '\\');
1.2 kristaps 1002: break;
1003: default:
1004: break;
1005: }
1006:
1007: /* Write the character and adjust where we are on the page. */
1.9 kristaps 1008:
1.50 kristaps 1009: f = (int)p->ps->lastf;
1.13 kristaps 1010:
1.61 schwarze 1011: if (c <= 32 || c - 32 >= MAXCHAR)
1012: c = 32;
1.13 kristaps 1013:
1.25 kristaps 1014: ps_putchar(p, (char)c);
1.14 kristaps 1015: c -= 32;
1.50 kristaps 1016: p->ps->pscol += (size_t)fonts[f].gly[c].wx;
1.2 kristaps 1017: }
1018:
1019: static void
1.9 kristaps 1020: ps_pclose(struct termp *p)
1021: {
1022:
1.59 schwarze 1023: /*
1.9 kristaps 1024: * Spit out that we're exiting a word context (this is a
1025: * "partial close" because we don't check the last-char buffer
1026: * or anything).
1027: */
1028:
1.50 kristaps 1029: if ( ! (PS_INLINE & p->ps->flags))
1.9 kristaps 1030: return;
1.59 schwarze 1031:
1.37 kristaps 1032: if (TERMTYPE_PS != p->type) {
1033: ps_printf(p, ") Tj\nET\n");
1034: } else
1035: ps_printf(p, ") show\n");
1036:
1.50 kristaps 1037: p->ps->flags &= ~PS_INLINE;
1.9 kristaps 1038: }
1039:
1040: static void
1041: ps_fclose(struct termp *p)
1042: {
1043:
1044: /*
1045: * Strong closure: if we have a last-char, spit it out after
1046: * checking that we're in the right font mode. This will of
1047: * course open a new scope, if applicable.
1048: *
1049: * Following this, close out any scope that's open.
1050: */
1051:
1.65 schwarze 1052: if (p->ps->last != '\0') {
1.67 schwarze 1053: assert( ! (p->ps->flags & PS_BACKSP));
1.65 schwarze 1054: if (p->ps->nextf != p->ps->lastf) {
1.9 kristaps 1055: ps_pclose(p);
1.65 schwarze 1056: ps_setfont(p, p->ps->nextf);
1.9 kristaps 1057: }
1.65 schwarze 1058: p->ps->nextf = TERMFONT_NONE;
1.50 kristaps 1059: ps_pletter(p, p->ps->last);
1060: p->ps->last = '\0';
1.9 kristaps 1061: }
1062:
1.50 kristaps 1063: if ( ! (PS_INLINE & p->ps->flags))
1.9 kristaps 1064: return;
1065:
1066: ps_pclose(p);
1067: }
1068:
1069: static void
1.49 kristaps 1070: ps_letter(struct termp *p, int arg)
1.8 kristaps 1071: {
1.67 schwarze 1072: size_t savecol;
1.65 schwarze 1073: char c;
1.49 kristaps 1074:
1075: c = arg >= 128 || arg <= 0 ? '?' : arg;
1.9 kristaps 1076:
1077: /*
1.67 schwarze 1078: * When receiving a backspace, merely flag it.
1079: * We don't know yet whether it is
1080: * a font instruction or an overstrike.
1.9 kristaps 1081: */
1082:
1.67 schwarze 1083: if (c == '\b') {
1.65 schwarze 1084: assert(p->ps->last != '\0');
1.67 schwarze 1085: assert( ! (p->ps->flags & PS_BACKSP));
1086: p->ps->flags |= PS_BACKSP;
1087: return;
1088: }
1089:
1090: /*
1091: * Decode font instructions.
1092: */
1093:
1094: if (p->ps->flags & PS_BACKSP) {
1095: if (p->ps->last == '_') {
1.65 schwarze 1096: switch (p->ps->nextf) {
1097: case TERMFONT_BI:
1098: break;
1099: case TERMFONT_BOLD:
1100: p->ps->nextf = TERMFONT_BI;
1101: break;
1102: default:
1103: p->ps->nextf = TERMFONT_UNDER;
1104: }
1.67 schwarze 1105: p->ps->last = c;
1106: p->ps->flags &= ~PS_BACKSP;
1107: return;
1108: }
1109: if (p->ps->last == c) {
1.65 schwarze 1110: switch (p->ps->nextf) {
1111: case TERMFONT_BI:
1112: break;
1113: case TERMFONT_UNDER:
1114: p->ps->nextf = TERMFONT_BI;
1115: break;
1116: default:
1117: p->ps->nextf = TERMFONT_BOLD;
1.9 kristaps 1118: }
1.67 schwarze 1119: p->ps->flags &= ~PS_BACKSP;
1120: return;
1.9 kristaps 1121: }
1.67 schwarze 1122:
1123: /*
1124: * This is not a font instruction, but rather
1125: * the next character. Prepare for overstrike.
1126: */
1127:
1128: savecol = p->ps->pscol;
1129: } else
1130: savecol = SIZE_MAX;
1131:
1132: /*
1133: * We found the next character, so the font instructions
1134: * for the previous one are complete.
1135: * Use them and print it.
1136: */
1137:
1138: if (p->ps->last != '\0') {
1.65 schwarze 1139: if (p->ps->nextf != p->ps->lastf) {
1.9 kristaps 1140: ps_pclose(p);
1.65 schwarze 1141: ps_setfont(p, p->ps->nextf);
1.9 kristaps 1142: }
1.65 schwarze 1143: p->ps->nextf = TERMFONT_NONE;
1144: ps_pletter(p, p->ps->last);
1.8 kristaps 1145: }
1.67 schwarze 1146:
1147: /*
1148: * Do not print the current character yet because font
1149: * instructions might follow; only remember it.
1150: * For the first character, nothing else is done.
1151: * The final character will get printed from ps_fclose().
1152: */
1153:
1.65 schwarze 1154: p->ps->last = c;
1.67 schwarze 1155:
1156: /*
1157: * For an overstrike, back up to the previous position.
1158: */
1159:
1160: if (savecol != SIZE_MAX) {
1161: ps_pclose(p);
1162: p->ps->pscol = savecol;
1163: p->ps->flags &= ~PS_BACKSP;
1164: }
1.8 kristaps 1165: }
1166:
1167: static void
1.2 kristaps 1168: ps_advance(struct termp *p, size_t len)
1169: {
1170:
1.9 kristaps 1171: /*
1172: * Advance some spaces. This can probably be made smarter,
1173: * i.e., to have multiple space-separated words in the same
1174: * scope, but this is easier: just close out the current scope
1175: * and readjust our column settings.
1176: */
1.8 kristaps 1177:
1.9 kristaps 1178: ps_fclose(p);
1.50 kristaps 1179: p->ps->pscol += len;
1.2 kristaps 1180: }
1181:
1182: static void
1183: ps_endline(struct termp *p)
1184: {
1.8 kristaps 1185:
1.9 kristaps 1186: /* Close out any scopes we have open: we're at eoln. */
1187:
1188: ps_fclose(p);
1.2 kristaps 1189:
1.9 kristaps 1190: /*
1191: * If we're in the margin, don't try to recalculate our current
1192: * row. XXX: if the column tries to be fancy with multiple
1.59 schwarze 1193: * lines, we'll do nasty stuff.
1.9 kristaps 1194: */
1.2 kristaps 1195:
1.50 kristaps 1196: if (PS_MARGINS & p->ps->flags)
1.29 kristaps 1197: return;
1198:
1199: /* Left-justify. */
1200:
1.50 kristaps 1201: p->ps->pscol = p->ps->left;
1.29 kristaps 1202:
1203: /* If we haven't printed anything, return. */
1204:
1.50 kristaps 1205: if (PS_NEWPAGE & p->ps->flags)
1.2 kristaps 1206: return;
1207:
1.9 kristaps 1208: /*
1209: * Put us down a line. If we're at the page bottom, spit out a
1210: * showpage and restart our row.
1211: */
1212:
1.59 schwarze 1213: if (p->ps->psrow >= p->ps->lineheight + p->ps->bottom) {
1.50 kristaps 1214: p->ps->psrow -= p->ps->lineheight;
1.2 kristaps 1215: return;
1216: }
1217:
1.37 kristaps 1218: ps_closepage(p);
1.1 kristaps 1219: }
1.9 kristaps 1220:
1221: static void
1222: ps_setfont(struct termp *p, enum termfont f)
1223: {
1224:
1.16 kristaps 1225: assert(f < TERMFONT__MAX);
1.50 kristaps 1226: p->ps->lastf = f;
1.59 schwarze 1227:
1.32 kristaps 1228: /*
1229: * If we're still at the top of the page, let the font-setting
1230: * be delayed until we actually have stuff to print.
1231: */
1232:
1.50 kristaps 1233: if (PS_NEWPAGE & p->ps->flags)
1.32 kristaps 1234: return;
1235:
1.37 kristaps 1236: if (TERMTYPE_PS == p->type)
1.59 schwarze 1237: ps_printf(p, "/%s %zu selectfont\n",
1238: fonts[(int)f].name, p->ps->scale);
1.37 kristaps 1239: else
1.59 schwarze 1240: ps_printf(p, "/F%d %zu Tf\n",
1241: (int)f, p->ps->scale);
1.9 kristaps 1242: }
1243:
1.11 kristaps 1244: static size_t
1.49 kristaps 1245: ps_width(const struct termp *p, int c)
1.11 kristaps 1246: {
1247:
1.14 kristaps 1248: if (c <= 32 || c - 32 >= MAXCHAR)
1.61 schwarze 1249: c = 0;
1250: else
1251: c -= 32;
1.14 kristaps 1252:
1.49 kristaps 1253: return((size_t)fonts[(int)TERMFONT_NONE].gly[c].wx);
1.11 kristaps 1254: }
1.19 kristaps 1255:
1.20 kristaps 1256: static double
1.19 kristaps 1257: ps_hspan(const struct termp *p, const struct roffsu *su)
1258: {
1259: double r;
1.59 schwarze 1260:
1.19 kristaps 1261: /*
1262: * All of these measurements are derived by converting from the
1.21 kristaps 1263: * native measurement to AFM units.
1.19 kristaps 1264: */
1265: switch (su->unit) {
1.64 kristaps 1266: case SCALE_BU:
1267: /*
1268: * Traditionally, the default unit is fixed to the
1269: * output media. So this would refer to the point. In
1270: * mandoc(1), however, we stick to the default terminal
1271: * scaling unit so that output is the same regardless
1272: * the media.
1273: */
1274: r = PNT2AFM(p, su->scale * 72.0 / 240.0);
1275: break;
1.59 schwarze 1276: case SCALE_CM:
1.64 kristaps 1277: r = PNT2AFM(p, su->scale * 72.0 / 2.54);
1278: break;
1279: case SCALE_EM:
1280: r = su->scale *
1281: fonts[(int)TERMFONT_NONE].gly[109 - 32].wx;
1282: break;
1283: case SCALE_EN:
1284: r = su->scale *
1285: fonts[(int)TERMFONT_NONE].gly[110 - 32].wx;
1.19 kristaps 1286: break;
1.59 schwarze 1287: case SCALE_IN:
1.62 schwarze 1288: r = PNT2AFM(p, su->scale * 72.0);
1.19 kristaps 1289: break;
1.64 kristaps 1290: case SCALE_MM:
1291: r = su->scale *
1292: fonts[(int)TERMFONT_NONE].gly[109 - 32].wx / 100.0;
1293: break;
1.59 schwarze 1294: case SCALE_PC:
1.62 schwarze 1295: r = PNT2AFM(p, su->scale * 12.0);
1.19 kristaps 1296: break;
1.59 schwarze 1297: case SCALE_PT:
1.64 kristaps 1298: r = PNT2AFM(p, su->scale * 1.0);
1.19 kristaps 1299: break;
1.59 schwarze 1300: case SCALE_VS:
1.50 kristaps 1301: r = su->scale * p->ps->lineheight;
1.19 kristaps 1302: break;
1303: default:
1304: r = su->scale;
1305: break;
1306: }
1307:
1.20 kristaps 1308: return(r);
1.50 kristaps 1309: }
1310:
1311: static void
1312: ps_growbuf(struct termp *p, size_t sz)
1313: {
1314: if (p->ps->psmargcur + sz <= p->ps->psmargsz)
1315: return;
1316:
1317: if (sz < PS_BUFSLOP)
1318: sz = PS_BUFSLOP;
1319:
1320: p->ps->psmargsz += sz;
1.60 schwarze 1321: p->ps->psmarg = mandoc_realloc(p->ps->psmarg, p->ps->psmargsz);
1.19 kristaps 1322: }
CVSweb