Annotation of mandoc/term_ps.c, Revision 1.67
1.67 ! schwarze 1: /* $Id: term_ps.c,v 1.66 2014/08/28 01:37:12 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);
1.50 kristaps 109: static struct termp *pspdf_alloc(char *);
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 *
510: pdf_alloc(char *outopts)
511: {
512: struct termp *p;
513:
1.38 kristaps 514: if (NULL != (p = pspdf_alloc(outopts)))
515: p->type = TERMTYPE_PDF;
1.37 kristaps 516:
517: return(p);
518: }
1.2 kristaps 519:
1.1 kristaps 520: void *
1.17 kristaps 521: ps_alloc(char *outopts)
1.1 kristaps 522: {
523: struct termp *p;
1.37 kristaps 524:
1.38 kristaps 525: if (NULL != (p = pspdf_alloc(outopts)))
526: p->type = TERMTYPE_PS;
1.37 kristaps 527:
528: return(p);
529: }
530:
531: static struct termp *
532: pspdf_alloc(char *outopts)
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));
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;
1.58 schwarze 637: if (0 < iop)
638: p->ps->width += width;
639: else if (0 > iop)
640: p->ps->width -= width;
641: else
642: p->ps->width = width ? width : p->ps->lastwidth;
1.57 schwarze 643: p->ps->lastwidth = lastwidth;
1.1 kristaps 644: }
645:
646: void
1.37 kristaps 647: pspdf_free(void *arg)
1.1 kristaps 648: {
1.4 kristaps 649: struct termp *p;
650:
651: p = (struct termp *)arg;
652:
1.50 kristaps 653: if (p->ps->psmarg)
654: free(p->ps->psmarg);
655: if (p->ps->pdfobjs)
656: free(p->ps->pdfobjs);
1.4 kristaps 657:
1.50 kristaps 658: free(p->ps);
1.4 kristaps 659: term_free(p);
660: }
661:
662: static void
663: ps_printf(struct termp *p, const char *fmt, ...)
664: {
665: va_list ap;
1.37 kristaps 666: int pos, len;
1.4 kristaps 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: */
1.1 kristaps 675:
1.50 kristaps 676: if ( ! (PS_MARGINS & p->ps->flags)) {
1.37 kristaps 677: len = vprintf(fmt, ap);
1.4 kristaps 678: va_end(ap);
1.59 schwarze 679: p->ps->pdfbytes += len < 0 ? 0 : (size_t)len;
1.4 kristaps 680: return;
681: }
682:
1.59 schwarze 683: /*
1.4 kristaps 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:
1.40 joerg 689: ps_growbuf(p, PS_BUFSLOP);
1.4 kristaps 690:
1.50 kristaps 691: pos = (int)p->ps->psmargcur;
1.54 schwarze 692: vsnprintf(&p->ps->psmarg[pos], PS_BUFSLOP, fmt, ap);
1.5 kristaps 693:
694: va_end(ap);
1.37 kristaps 695:
1.50 kristaps 696: p->ps->psmargcur = strlen(p->ps->psmarg);
1.4 kristaps 697: }
698:
699: static void
700: ps_putchar(struct termp *p, char c)
701: {
702: int pos;
703:
704: /* See ps_printf(). */
705:
1.50 kristaps 706: if ( ! (PS_MARGINS & p->ps->flags)) {
1.4 kristaps 707: putchar(c);
1.50 kristaps 708: p->ps->pdfbytes++;
1.4 kristaps 709: return;
710: }
711:
1.40 joerg 712: ps_growbuf(p, 2);
1.4 kristaps 713:
1.50 kristaps 714: pos = (int)p->ps->psmargcur++;
715: p->ps->psmarg[pos++] = c;
716: p->ps->psmarg[pos] = '\0';
1.2 kristaps 717: }
718:
1.37 kristaps 719: static void
1.39 kristaps 720: pdf_obj(struct termp *p, size_t obj)
721: {
722:
723: assert(obj > 0);
724:
1.50 kristaps 725: if ((obj - 1) >= p->ps->pdfobjsz) {
726: p->ps->pdfobjsz = obj + 128;
1.60 schwarze 727: p->ps->pdfobjs = mandoc_reallocarray(p->ps->pdfobjs,
728: p->ps->pdfobjsz, sizeof(size_t));
1.39 kristaps 729: }
730:
1.50 kristaps 731: p->ps->pdfobjs[(int)obj - 1] = p->ps->pdfbytes;
1.39 kristaps 732: ps_printf(p, "%zu 0 obj\n", obj);
733: }
734:
735: static void
1.37 kristaps 736: ps_closepage(struct termp *p)
737: {
738: int i;
1.38 kristaps 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: */
1.37 kristaps 747:
1.50 kristaps 748: assert(p->ps->psmarg && p->ps->psmarg[0]);
749: ps_printf(p, "%s", p->ps->psmarg);
1.37 kristaps 750:
1.38 kristaps 751: if (TERMTYPE_PS != p->type) {
1.37 kristaps 752: ps_printf(p, "ET\n");
1.38 kristaps 753:
1.50 kristaps 754: len = p->ps->pdfbytes - p->ps->pdflastpg;
755: base = p->ps->pages * 4 + p->ps->pdfbody;
1.38 kristaps 756:
757: ps_printf(p, "endstream\nendobj\n");
758:
759: /* Length of content. */
1.39 kristaps 760: pdf_obj(p, base + 1);
1.38 kristaps 761: ps_printf(p, "%zu\nendobj\n", len);
762:
763: /* Resource for content. */
1.39 kristaps 764: pdf_obj(p, base + 2);
1.38 kristaps 765: ps_printf(p, "<<\n/ProcSet [/PDF /Text]\n");
1.37 kristaps 766: ps_printf(p, "/Font <<\n");
1.59 schwarze 767: for (i = 0; i < (int)TERMFONT__MAX; i++)
1.37 kristaps 768: ps_printf(p, "/F%d %d 0 R\n", i, 3 + i);
1.38 kristaps 769: ps_printf(p, ">>\n>>\n");
770:
771: /* Page node. */
1.39 kristaps 772: pdf_obj(p, base + 3);
773: ps_printf(p, "<<\n");
1.37 kristaps 774: ps_printf(p, "/Type /Page\n");
775: ps_printf(p, "/Parent 2 0 R\n");
1.38 kristaps 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");
1.37 kristaps 781:
1.50 kristaps 782: p->ps->pages++;
783: p->ps->psrow = p->ps->top;
784: assert( ! (PS_NEWPAGE & p->ps->flags));
785: p->ps->flags |= PS_NEWPAGE;
1.37 kristaps 786: }
787:
1.2 kristaps 788: static void
789: ps_end(struct termp *p)
790: {
1.38 kristaps 791: size_t i, xref, base;
1.2 kristaps 792:
1.4 kristaps 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:
1.50 kristaps 799: if ( ! (PS_NEWPAGE & p->ps->flags)) {
800: assert(0 == p->ps->flags);
801: assert('\0' == p->ps->last);
1.37 kristaps 802: ps_closepage(p);
1.30 kristaps 803: }
1.16 kristaps 804:
1.37 kristaps 805: if (TERMTYPE_PS == p->type) {
806: ps_printf(p, "%%%%Trailer\n");
1.50 kristaps 807: ps_printf(p, "%%%%Pages: %zu\n", p->ps->pages);
1.37 kristaps 808: ps_printf(p, "%%%%EOF\n");
809: return;
1.59 schwarze 810: }
1.37 kristaps 811:
1.39 kristaps 812: pdf_obj(p, 2);
813: ps_printf(p, "<<\n/Type /Pages\n");
1.37 kristaps 814: ps_printf(p, "/MediaBox [0 0 %zu %zu]\n",
1.50 kristaps 815: (size_t)AFM2PNT(p, p->ps->width),
816: (size_t)AFM2PNT(p, p->ps->height));
1.37 kristaps 817:
1.50 kristaps 818: ps_printf(p, "/Count %zu\n", p->ps->pages);
1.37 kristaps 819: ps_printf(p, "/Kids [");
820:
1.50 kristaps 821: for (i = 0; i < p->ps->pages; i++)
1.59 schwarze 822: ps_printf(p, " %zu 0 R", i * 4 + p->ps->pdfbody + 3);
1.38 kristaps 823:
1.59 schwarze 824: base = (p->ps->pages - 1) * 4 + p->ps->pdfbody + 4;
1.38 kristaps 825:
826: ps_printf(p, "]\n>>\nendobj\n");
1.39 kristaps 827: pdf_obj(p, base);
1.37 kristaps 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");
1.50 kristaps 832: xref = p->ps->pdfbytes;
1.37 kristaps 833: ps_printf(p, "xref\n");
1.38 kristaps 834: ps_printf(p, "0 %zu\n", base + 1);
1.39 kristaps 835: ps_printf(p, "0000000000 65535 f \n");
836:
837: for (i = 0; i < base; i++)
1.59 schwarze 838: ps_printf(p, "%.10zu 00000 n \n",
839: p->ps->pdfobjs[(int)i]);
1.39 kristaps 840:
1.37 kristaps 841: ps_printf(p, "trailer\n");
842: ps_printf(p, "<<\n");
1.38 kristaps 843: ps_printf(p, "/Size %zu\n", base + 1);
844: ps_printf(p, "/Root %zu 0 R\n", base);
1.37 kristaps 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");
1.2 kristaps 850: }
851:
852: static void
853: ps_begin(struct termp *p)
854: {
1.16 kristaps 855: int i;
1.2 kristaps 856:
1.59 schwarze 857: /*
1.9 kristaps 858: * Print margins into margin buffer. Nothing gets output to the
859: * screen yet, so we don't need to initialise the primary state.
1.2 kristaps 860: */
861:
1.50 kristaps 862: if (p->ps->psmarg) {
863: assert(p->ps->psmargsz);
864: p->ps->psmarg[0] = '\0';
1.4 kristaps 865: }
866:
1.50 kristaps 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;
1.4 kristaps 872:
1.9 kristaps 873: ps_setfont(p, TERMFONT_NONE);
1.4 kristaps 874:
875: (*p->headf)(p, p->argf);
876: (*p->endline)(p);
877:
1.50 kristaps 878: p->ps->pscol = p->ps->left;
879: p->ps->psrow = p->ps->footer;
1.4 kristaps 880:
881: (*p->footf)(p, p->argf);
882: (*p->endline)(p);
883:
1.50 kristaps 884: p->ps->flags &= ~PS_MARGINS;
1.9 kristaps 885:
1.50 kristaps 886: assert(0 == p->ps->flags);
887: assert(p->ps->psmarg);
888: assert('\0' != p->ps->psmarg[0]);
1.9 kristaps 889:
1.59 schwarze 890: /*
1.9 kristaps 891: * Print header and initialise page state. Following this,
892: * stuff gets printed to the screen, so make sure we're sane.
893: */
1.4 kristaps 894:
1.37 kristaps 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: "
1.59 schwarze 902: "Default %zu %zu 0 () ()\n",
903: (size_t)AFM2PNT(p, p->ps->width),
904: (size_t)AFM2PNT(p, p->ps->height));
1.37 kristaps 905: ps_printf(p, "%%%%DocumentNeededResources: font");
906:
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");
1.39 kristaps 913: pdf_obj(p, 1);
1.37 kristaps 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++) {
1.39 kristaps 919: pdf_obj(p, (size_t)i + 3);
1.37 kristaps 920: ps_printf(p, "<<\n");
921: ps_printf(p, "/Type /Font\n");
922: ps_printf(p, "/Subtype /Type1\n");
1.55 joerg 923: ps_printf(p, "/Name /F%d\n", i);
1.37 kristaps 924: ps_printf(p, "/BaseFont /%s\n", fonts[i].name);
925: ps_printf(p, ">>\n");
926: }
927: }
1.16 kristaps 928:
1.50 kristaps 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;
1.33 kristaps 933: ps_setfont(p, TERMFONT_NONE);
1.2 kristaps 934: }
935:
936: static void
1.13 kristaps 937: ps_pletter(struct termp *p, int c)
1.2 kristaps 938: {
1.14 kristaps 939: int f;
1.32 kristaps 940:
1.9 kristaps 941: /*
1.32 kristaps 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.
1.9 kristaps 944: */
945:
1.50 kristaps 946: if (PS_NEWPAGE & p->ps->flags) {
1.37 kristaps 947: if (TERMTYPE_PS == p->type) {
1.59 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);
1.37 kristaps 953: } else {
1.59 schwarze 954: pdf_obj(p, p->ps->pdfbody +
955: p->ps->pages * 4);
1.37 kristaps 956: ps_printf(p, "<<\n");
1.59 schwarze 957: ps_printf(p, "/Length %zu 0 R\n",
958: p->ps->pdfbody + 1 + p->ps->pages * 4);
1.37 kristaps 959: ps_printf(p, ">>\nstream\n");
960: }
1.50 kristaps 961: p->ps->pdflastpg = p->ps->pdfbytes;
962: p->ps->flags &= ~PS_NEWPAGE;
1.32 kristaps 963: }
1.59 schwarze 964:
1.32 kristaps 965: /*
966: * If we're not in a PostScript "word" context, then open one
967: * now at the current cursor.
968: */
1.30 kristaps 969:
1.50 kristaps 970: if ( ! (PS_INLINE & p->ps->flags)) {
1.37 kristaps 971: if (TERMTYPE_PS != p->type) {
1.59 schwarze 972: ps_printf(p, "BT\n/F%d %zu Tf\n",
973: (int)p->ps->lastf, p->ps->scale);
1.37 kristaps 974: ps_printf(p, "%.3f %.3f Td\n(",
1.59 schwarze 975: AFM2PNT(p, p->ps->pscol),
976: AFM2PNT(p, p->ps->psrow));
1.37 kristaps 977: } else
1.59 schwarze 978: ps_printf(p, "%.3f %.3f moveto\n(",
979: AFM2PNT(p, p->ps->pscol),
980: AFM2PNT(p, p->ps->psrow));
1.50 kristaps 981: p->ps->flags |= PS_INLINE;
1.2 kristaps 982: }
983:
1.50 kristaps 984: assert( ! (PS_NEWPAGE & p->ps->flags));
1.29 kristaps 985:
1.2 kristaps 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) {
1.59 schwarze 994: case '(':
1.2 kristaps 995: /* FALLTHROUGH */
1.59 schwarze 996: case ')':
1.2 kristaps 997: /* FALLTHROUGH */
1.59 schwarze 998: case '\\':
1.4 kristaps 999: ps_putchar(p, '\\');
1.2 kristaps 1000: break;
1001: default:
1002: break;
1003: }
1004:
1005: /* Write the character and adjust where we are on the page. */
1.9 kristaps 1006:
1.50 kristaps 1007: f = (int)p->ps->lastf;
1.13 kristaps 1008:
1.61 schwarze 1009: if (c <= 32 || c - 32 >= MAXCHAR)
1010: c = 32;
1.13 kristaps 1011:
1.25 kristaps 1012: ps_putchar(p, (char)c);
1.14 kristaps 1013: c -= 32;
1.50 kristaps 1014: p->ps->pscol += (size_t)fonts[f].gly[c].wx;
1.2 kristaps 1015: }
1016:
1017: static void
1.9 kristaps 1018: ps_pclose(struct termp *p)
1019: {
1020:
1.59 schwarze 1021: /*
1.9 kristaps 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:
1.50 kristaps 1027: if ( ! (PS_INLINE & p->ps->flags))
1.9 kristaps 1028: return;
1.59 schwarze 1029:
1.37 kristaps 1030: if (TERMTYPE_PS != p->type) {
1031: ps_printf(p, ") Tj\nET\n");
1032: } else
1033: ps_printf(p, ") show\n");
1034:
1.50 kristaps 1035: p->ps->flags &= ~PS_INLINE;
1.9 kristaps 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:
1.65 schwarze 1050: if (p->ps->last != '\0') {
1.67 ! schwarze 1051: assert( ! (p->ps->flags & PS_BACKSP));
1.65 schwarze 1052: if (p->ps->nextf != p->ps->lastf) {
1.9 kristaps 1053: ps_pclose(p);
1.65 schwarze 1054: ps_setfont(p, p->ps->nextf);
1.9 kristaps 1055: }
1.65 schwarze 1056: p->ps->nextf = TERMFONT_NONE;
1.50 kristaps 1057: ps_pletter(p, p->ps->last);
1058: p->ps->last = '\0';
1.9 kristaps 1059: }
1060:
1.50 kristaps 1061: if ( ! (PS_INLINE & p->ps->flags))
1.9 kristaps 1062: return;
1063:
1064: ps_pclose(p);
1065: }
1066:
1067: static void
1.49 kristaps 1068: ps_letter(struct termp *p, int arg)
1.8 kristaps 1069: {
1.67 ! schwarze 1070: size_t savecol;
1.65 schwarze 1071: char c;
1.49 kristaps 1072:
1073: c = arg >= 128 || arg <= 0 ? '?' : arg;
1.9 kristaps 1074:
1075: /*
1.67 ! 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.
1.9 kristaps 1079: */
1080:
1.67 ! schwarze 1081: if (c == '\b') {
1.65 schwarze 1082: assert(p->ps->last != '\0');
1.67 ! 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 == '_') {
1.65 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: }
1.67 ! schwarze 1103: p->ps->last = c;
! 1104: p->ps->flags &= ~PS_BACKSP;
! 1105: return;
! 1106: }
! 1107: if (p->ps->last == c) {
1.65 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;
1.9 kristaps 1116: }
1.67 ! schwarze 1117: p->ps->flags &= ~PS_BACKSP;
! 1118: return;
1.9 kristaps 1119: }
1.67 ! 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') {
1.65 schwarze 1137: if (p->ps->nextf != p->ps->lastf) {
1.9 kristaps 1138: ps_pclose(p);
1.65 schwarze 1139: ps_setfont(p, p->ps->nextf);
1.9 kristaps 1140: }
1.65 schwarze 1141: p->ps->nextf = TERMFONT_NONE;
1142: ps_pletter(p, p->ps->last);
1.8 kristaps 1143: }
1.67 ! 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:
1.65 schwarze 1152: p->ps->last = c;
1.67 ! 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: }
1.8 kristaps 1163: }
1164:
1165: static void
1.2 kristaps 1166: ps_advance(struct termp *p, size_t len)
1167: {
1168:
1.9 kristaps 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: */
1.8 kristaps 1175:
1.9 kristaps 1176: ps_fclose(p);
1.50 kristaps 1177: p->ps->pscol += len;
1.2 kristaps 1178: }
1179:
1180: static void
1181: ps_endline(struct termp *p)
1182: {
1.8 kristaps 1183:
1.9 kristaps 1184: /* Close out any scopes we have open: we're at eoln. */
1185:
1186: ps_fclose(p);
1.2 kristaps 1187:
1.9 kristaps 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
1.59 schwarze 1191: * lines, we'll do nasty stuff.
1.9 kristaps 1192: */
1.2 kristaps 1193:
1.50 kristaps 1194: if (PS_MARGINS & p->ps->flags)
1.29 kristaps 1195: return;
1196:
1197: /* Left-justify. */
1198:
1.50 kristaps 1199: p->ps->pscol = p->ps->left;
1.29 kristaps 1200:
1201: /* If we haven't printed anything, return. */
1202:
1.50 kristaps 1203: if (PS_NEWPAGE & p->ps->flags)
1.2 kristaps 1204: return;
1205:
1.9 kristaps 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:
1.59 schwarze 1211: if (p->ps->psrow >= p->ps->lineheight + p->ps->bottom) {
1.50 kristaps 1212: p->ps->psrow -= p->ps->lineheight;
1.2 kristaps 1213: return;
1214: }
1215:
1.37 kristaps 1216: ps_closepage(p);
1.1 kristaps 1217: }
1.9 kristaps 1218:
1219: static void
1220: ps_setfont(struct termp *p, enum termfont f)
1221: {
1222:
1.16 kristaps 1223: assert(f < TERMFONT__MAX);
1.50 kristaps 1224: p->ps->lastf = f;
1.59 schwarze 1225:
1.32 kristaps 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:
1.50 kristaps 1231: if (PS_NEWPAGE & p->ps->flags)
1.32 kristaps 1232: return;
1233:
1.37 kristaps 1234: if (TERMTYPE_PS == p->type)
1.59 schwarze 1235: ps_printf(p, "/%s %zu selectfont\n",
1236: fonts[(int)f].name, p->ps->scale);
1.37 kristaps 1237: else
1.59 schwarze 1238: ps_printf(p, "/F%d %zu Tf\n",
1239: (int)f, p->ps->scale);
1.9 kristaps 1240: }
1241:
1.11 kristaps 1242: static size_t
1.49 kristaps 1243: ps_width(const struct termp *p, int c)
1.11 kristaps 1244: {
1245:
1.14 kristaps 1246: if (c <= 32 || c - 32 >= MAXCHAR)
1.61 schwarze 1247: c = 0;
1248: else
1249: c -= 32;
1.14 kristaps 1250:
1.49 kristaps 1251: return((size_t)fonts[(int)TERMFONT_NONE].gly[c].wx);
1.11 kristaps 1252: }
1.19 kristaps 1253:
1.20 kristaps 1254: static double
1.19 kristaps 1255: ps_hspan(const struct termp *p, const struct roffsu *su)
1256: {
1257: double r;
1.59 schwarze 1258:
1.19 kristaps 1259: /*
1260: * All of these measurements are derived by converting from the
1.21 kristaps 1261: * native measurement to AFM units.
1.19 kristaps 1262: */
1263: switch (su->unit) {
1.64 kristaps 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;
1.59 schwarze 1274: case SCALE_CM:
1.64 kristaps 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;
1.19 kristaps 1284: break;
1.59 schwarze 1285: case SCALE_IN:
1.62 schwarze 1286: r = PNT2AFM(p, su->scale * 72.0);
1.19 kristaps 1287: break;
1.64 kristaps 1288: case SCALE_MM:
1289: r = su->scale *
1290: fonts[(int)TERMFONT_NONE].gly[109 - 32].wx / 100.0;
1291: break;
1.59 schwarze 1292: case SCALE_PC:
1.62 schwarze 1293: r = PNT2AFM(p, su->scale * 12.0);
1.19 kristaps 1294: break;
1.59 schwarze 1295: case SCALE_PT:
1.64 kristaps 1296: r = PNT2AFM(p, su->scale * 1.0);
1.19 kristaps 1297: break;
1.59 schwarze 1298: case SCALE_VS:
1.50 kristaps 1299: r = su->scale * p->ps->lineheight;
1.19 kristaps 1300: break;
1301: default:
1302: r = su->scale;
1303: break;
1304: }
1305:
1.20 kristaps 1306: return(r);
1.50 kristaps 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;
1.60 schwarze 1319: p->ps->psmarg = mandoc_realloc(p->ps->psmarg, p->ps->psmargsz);
1.19 kristaps 1320: }
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