Annotation of src/usr.bin/mandoc/term_ps.c, Revision 1.38
1.38 ! schwarze 1: /* $OpenBSD: term_ps.c,v 1.37 2015/01/21 19:40:22 schwarze Exp $ */
1.1 schwarze 2: /*
1.17 schwarze 3: * Copyright (c) 2010, 2011 Kristaps Dzonsons <kristaps@bsd.lv>
1.37 schwarze 4: * Copyright (c) 2014, 2015 Ingo Schwarze <schwarze@openbsd.org>
1.1 schwarze 5: *
6: * Permission to use, copy, modify, and distribute this software for any
7: * purpose with or without fee is hereby granted, provided that the above
8: * copyright notice and this permission notice appear in all copies.
9: *
1.38 ! schwarze 10: * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHORS DISCLAIM ALL WARRANTIES
1.1 schwarze 11: * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
1.38 ! schwarze 12: * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR
1.1 schwarze 13: * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
14: * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
15: * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
16: * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
17: */
1.11 deraadt 18: #include <sys/types.h>
1.1 schwarze 19:
20: #include <assert.h>
21: #include <stdarg.h>
1.5 schwarze 22: #include <stdint.h>
1.1 schwarze 23: #include <stdio.h>
24: #include <stdlib.h>
25: #include <string.h>
1.6 schwarze 26: #include <unistd.h>
1.1 schwarze 27:
1.21 schwarze 28: #include "mandoc_aux.h"
1.1 schwarze 29: #include "out.h"
1.35 schwarze 30: #include "term.h"
1.38 ! schwarze 31: #include "manconf.h"
1.1 schwarze 32: #include "main.h"
33:
1.17 schwarze 34: /* These work the buffer used by the header and footer. */
35: #define PS_BUFSLOP 128
36:
1.6 schwarze 37: /* Convert PostScript point "x" to an AFM unit. */
1.24 schwarze 38: #define PNT2AFM(p, x) \
1.17 schwarze 39: (size_t)((double)(x) * (1000.0 / (double)(p)->ps->scale))
1.6 schwarze 40:
41: /* Convert an AFM unit "x" to a PostScript points */
1.24 schwarze 42: #define AFM2PNT(p, x) \
1.17 schwarze 43: ((double)(x) / (1000.0 / (double)(p)->ps->scale))
1.6 schwarze 44:
1.4 schwarze 45: struct glyph {
1.7 schwarze 46: unsigned short wx; /* WX in AFM */
1.4 schwarze 47: };
48:
49: struct font {
50: const char *name; /* FontName in AFM */
51: #define MAXCHAR 95 /* total characters we can handle */
52: struct glyph gly[MAXCHAR]; /* glyph metrics */
53: };
1.1 schwarze 54:
1.17 schwarze 55: struct termp_ps {
56: int flags;
57: #define PS_INLINE (1 << 0) /* we're in a word */
58: #define PS_MARGINS (1 << 1) /* we're in the margins */
59: #define PS_NEWPAGE (1 << 2) /* new page, no words yet */
1.32 schwarze 60: #define PS_BACKSP (1 << 3) /* last character was backspace */
1.17 schwarze 61: size_t pscol; /* visible column (AFM units) */
1.37 schwarze 62: size_t pscolnext; /* used for overstrike */
1.17 schwarze 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 */
1.32 schwarze 67: char last; /* last non-backspace seen */
1.17 schwarze 68: enum termfont lastf; /* last set font */
1.29 schwarze 69: enum termfont nextf; /* building next font here */
1.17 schwarze 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) */
1.22 schwarze 77: size_t lastwidth; /* page width before last ll */
1.17 schwarze 78: size_t left; /* body left (AFM units) */
79: size_t header; /* header pos (AFM units) */
80: size_t footer; /* footer pos (AFM units) */
1.24 schwarze 81: size_t pdfbytes; /* current output byte */
1.17 schwarze 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);
101: static void ps_printf(struct termp *, const char *, ...);
102: static void ps_putchar(struct termp *, char);
103: static void ps_setfont(struct termp *, enum termfont);
1.23 schwarze 104: static void ps_setwidth(struct termp *, int, size_t);
1.38 ! schwarze 105: static struct termp *pspdf_alloc(const struct mchars *,
! 106: const struct manoutput *);
1.17 schwarze 107: static void pdf_obj(struct termp *, size_t);
108:
1.4 schwarze 109: /*
110: * We define, for the time being, three fonts: bold, oblique/italic, and
111: * normal (roman). The following table hard-codes the font metrics for
112: * ASCII, i.e., 32--127.
113: */
114:
115: static const struct font fonts[TERMFONT__MAX] = {
1.6 schwarze 116: { "Times-Roman", {
117: { 250 },
118: { 333 },
119: { 408 },
120: { 500 },
121: { 500 },
122: { 833 },
123: { 778 },
124: { 333 },
125: { 333 },
126: { 333 },
127: { 500 },
128: { 564 },
129: { 250 },
130: { 333 },
131: { 250 },
132: { 278 },
133: { 500 },
134: { 500 },
135: { 500 },
136: { 500 },
137: { 500 },
138: { 500 },
139: { 500 },
140: { 500 },
141: { 500 },
142: { 500 },
143: { 278 },
144: { 278 },
145: { 564 },
146: { 564 },
147: { 564 },
148: { 444 },
149: { 921 },
150: { 722 },
151: { 667 },
152: { 667 },
153: { 722 },
154: { 611 },
155: { 556 },
156: { 722 },
157: { 722 },
158: { 333 },
159: { 389 },
160: { 722 },
161: { 611 },
162: { 889 },
163: { 722 },
164: { 722 },
165: { 556 },
166: { 722 },
167: { 667 },
168: { 556 },
169: { 611 },
170: { 722 },
171: { 722 },
172: { 944 },
173: { 722 },
174: { 722 },
175: { 611 },
176: { 333 },
177: { 278 },
178: { 333 },
179: { 469 },
180: { 500 },
181: { 333 },
182: { 444 },
183: { 500 },
184: { 444 },
185: { 500},
186: { 444},
187: { 333},
188: { 500},
189: { 500},
190: { 278},
191: { 278},
192: { 500},
193: { 278},
194: { 778},
195: { 500},
196: { 500},
197: { 500},
198: { 500},
199: { 333},
200: { 389},
201: { 278},
202: { 500},
203: { 500},
204: { 722},
205: { 500},
206: { 500},
207: { 444},
208: { 480},
209: { 200},
210: { 480},
211: { 541},
1.4 schwarze 212: } },
1.6 schwarze 213: { "Times-Bold", {
214: { 250 },
215: { 333 },
216: { 555 },
217: { 500 },
218: { 500 },
219: { 1000 },
220: { 833 },
221: { 333 },
222: { 333 },
223: { 333 },
224: { 500 },
225: { 570 },
226: { 250 },
227: { 333 },
228: { 250 },
229: { 278 },
230: { 500 },
231: { 500 },
232: { 500 },
233: { 500 },
234: { 500 },
235: { 500 },
236: { 500 },
237: { 500 },
238: { 500 },
239: { 500 },
240: { 333 },
241: { 333 },
242: { 570 },
243: { 570 },
244: { 570 },
245: { 500 },
246: { 930 },
247: { 722 },
248: { 667 },
249: { 722 },
250: { 722 },
251: { 667 },
252: { 611 },
253: { 778 },
254: { 778 },
255: { 389 },
256: { 500 },
257: { 778 },
258: { 667 },
259: { 944 },
260: { 722 },
261: { 778 },
262: { 611 },
263: { 778 },
264: { 722 },
265: { 556 },
266: { 667 },
267: { 722 },
268: { 722 },
269: { 1000 },
270: { 722 },
271: { 722 },
272: { 667 },
273: { 333 },
274: { 278 },
275: { 333 },
276: { 581 },
277: { 500 },
278: { 333 },
279: { 500 },
280: { 556 },
281: { 444 },
282: { 556 },
283: { 444 },
284: { 333 },
285: { 500 },
286: { 556 },
287: { 278 },
288: { 333 },
289: { 556 },
290: { 278 },
291: { 833 },
292: { 556 },
293: { 500 },
294: { 556 },
295: { 556 },
296: { 444 },
297: { 389 },
298: { 333 },
299: { 556 },
300: { 500 },
301: { 722 },
302: { 500 },
303: { 500 },
304: { 444 },
305: { 394 },
306: { 220 },
307: { 394 },
308: { 520 },
1.4 schwarze 309: } },
1.6 schwarze 310: { "Times-Italic", {
311: { 250 },
312: { 333 },
313: { 420 },
314: { 500 },
315: { 500 },
316: { 833 },
317: { 778 },
318: { 333 },
319: { 333 },
320: { 333 },
321: { 500 },
322: { 675 },
323: { 250 },
324: { 333 },
325: { 250 },
326: { 278 },
327: { 500 },
328: { 500 },
329: { 500 },
330: { 500 },
331: { 500 },
332: { 500 },
333: { 500 },
334: { 500 },
335: { 500 },
336: { 500 },
337: { 333 },
338: { 333 },
339: { 675 },
340: { 675 },
341: { 675 },
342: { 500 },
343: { 920 },
344: { 611 },
345: { 611 },
346: { 667 },
347: { 722 },
348: { 611 },
349: { 611 },
350: { 722 },
351: { 722 },
352: { 333 },
353: { 444 },
354: { 667 },
355: { 556 },
356: { 833 },
357: { 667 },
358: { 722 },
359: { 611 },
360: { 722 },
361: { 611 },
362: { 500 },
363: { 556 },
364: { 722 },
365: { 611 },
366: { 833 },
367: { 611 },
368: { 556 },
369: { 556 },
370: { 389 },
371: { 278 },
372: { 389 },
373: { 422 },
374: { 500 },
375: { 333 },
376: { 500 },
377: { 500 },
378: { 444 },
379: { 500 },
380: { 444 },
381: { 278 },
382: { 500 },
383: { 500 },
384: { 278 },
385: { 278 },
386: { 444 },
387: { 278 },
388: { 722 },
389: { 500 },
390: { 500 },
391: { 500 },
392: { 500 },
393: { 389 },
394: { 389 },
395: { 278 },
396: { 500 },
397: { 444 },
398: { 667 },
399: { 444 },
400: { 444 },
401: { 389 },
402: { 400 },
403: { 275 },
404: { 400 },
405: { 541 },
1.4 schwarze 406: } },
1.29 schwarze 407: { "Times-BoldItalic", {
408: { 250 },
409: { 389 },
410: { 555 },
411: { 500 },
412: { 500 },
413: { 833 },
414: { 778 },
415: { 333 },
416: { 333 },
417: { 333 },
418: { 500 },
419: { 570 },
420: { 250 },
421: { 333 },
422: { 250 },
423: { 278 },
424: { 500 },
425: { 500 },
426: { 500 },
427: { 500 },
428: { 500 },
429: { 500 },
430: { 500 },
431: { 500 },
432: { 500 },
433: { 500 },
434: { 333 },
435: { 333 },
436: { 570 },
437: { 570 },
438: { 570 },
439: { 500 },
440: { 832 },
441: { 667 },
442: { 667 },
443: { 667 },
444: { 722 },
445: { 667 },
446: { 667 },
447: { 722 },
448: { 778 },
449: { 389 },
450: { 500 },
451: { 667 },
452: { 611 },
453: { 889 },
454: { 722 },
455: { 722 },
456: { 611 },
457: { 722 },
458: { 667 },
459: { 556 },
460: { 611 },
461: { 722 },
462: { 667 },
463: { 889 },
464: { 667 },
465: { 611 },
466: { 611 },
467: { 333 },
468: { 278 },
469: { 333 },
470: { 570 },
471: { 500 },
472: { 333 },
473: { 500 },
474: { 500 },
475: { 444 },
476: { 500 },
477: { 444 },
478: { 333 },
479: { 500 },
480: { 556 },
481: { 278 },
482: { 278 },
483: { 500 },
484: { 278 },
485: { 778 },
486: { 556 },
487: { 500 },
488: { 500 },
489: { 500 },
490: { 389 },
491: { 389 },
492: { 278 },
493: { 556 },
494: { 444 },
495: { 667 },
496: { 500 },
497: { 444 },
498: { 389 },
499: { 348 },
500: { 220 },
501: { 348 },
502: { 570 },
503: } },
1.4 schwarze 504: };
505:
1.7 schwarze 506: void *
1.38 ! schwarze 507: pdf_alloc(const struct mchars *mchars, const struct manoutput *outopts)
1.7 schwarze 508: {
509: struct termp *p;
510:
1.33 schwarze 511: if (NULL != (p = pspdf_alloc(mchars, outopts)))
1.8 schwarze 512: p->type = TERMTYPE_PDF;
1.7 schwarze 513:
514: return(p);
515: }
1.1 schwarze 516:
517: void *
1.38 ! schwarze 518: ps_alloc(const struct mchars *mchars, const struct manoutput *outopts)
1.1 schwarze 519: {
520: struct termp *p;
1.7 schwarze 521:
1.33 schwarze 522: if (NULL != (p = pspdf_alloc(mchars, outopts)))
1.8 schwarze 523: p->type = TERMTYPE_PS;
1.7 schwarze 524:
525: return(p);
526: }
527:
528: static struct termp *
1.38 ! schwarze 529: pspdf_alloc(const struct mchars *mchars, const struct manoutput *outopts)
1.7 schwarze 530: {
531: struct termp *p;
1.18 schwarze 532: unsigned int pagex, pagey;
533: size_t marginx, marginy, lineheight;
1.6 schwarze 534: const char *pp;
1.1 schwarze 535:
1.17 schwarze 536: p = mandoc_calloc(1, sizeof(struct termp));
1.33 schwarze 537: p->symtab = mchars;
1.17 schwarze 538: p->enc = TERMENC_ASCII;
1.36 schwarze 539: p->fontq = mandoc_reallocarray(NULL,
540: (p->fontsz = 8), sizeof(enum termfont));
541: p->fontq[0] = p->fontl = TERMFONT_NONE;
1.17 schwarze 542: p->ps = mandoc_calloc(1, sizeof(struct termp_ps));
1.1 schwarze 543:
1.6 schwarze 544: p->advance = ps_advance;
1.1 schwarze 545: p->begin = ps_begin;
546: p->end = ps_end;
547: p->endline = ps_endline;
1.6 schwarze 548: p->hspan = ps_hspan;
549: p->letter = ps_letter;
1.22 schwarze 550: p->setwidth = ps_setwidth;
1.3 schwarze 551: p->width = ps_width;
1.24 schwarze 552:
1.6 schwarze 553: /* Default to US letter (millimetres). */
554:
555: pagex = 216;
556: pagey = 279;
557:
558: /*
559: * The ISO-269 paper sizes can be calculated automatically, but
560: * it would require bringing in -lm for pow() and I'd rather not
561: * do that. So just do it the easy way for now. Since this
562: * only happens once, I'm not terribly concerned.
563: */
564:
1.38 ! schwarze 565: pp = outopts->paper;
1.6 schwarze 566: if (pp && strcasecmp(pp, "letter")) {
567: if (0 == strcasecmp(pp, "a3")) {
568: pagex = 297;
569: pagey = 420;
570: } else if (0 == strcasecmp(pp, "a4")) {
571: pagex = 210;
572: pagey = 297;
573: } else if (0 == strcasecmp(pp, "a5")) {
574: pagex = 148;
575: pagey = 210;
576: } else if (0 == strcasecmp(pp, "legal")) {
577: pagex = 216;
578: pagey = 356;
1.18 schwarze 579: } else if (2 != sscanf(pp, "%ux%u", &pagex, &pagey))
1.6 schwarze 580: fprintf(stderr, "%s: Unknown paper\n", pp);
1.19 schwarze 581: }
1.6 schwarze 582:
1.24 schwarze 583: /*
1.6 schwarze 584: * This MUST be defined before any PNT2AFM or AFM2PNT
585: * calculations occur.
586: */
587:
1.17 schwarze 588: p->ps->scale = 11;
1.6 schwarze 589:
590: /* Remember millimetres -> AFM units. */
591:
592: pagex = PNT2AFM(p, ((double)pagex * 2.834));
593: pagey = PNT2AFM(p, ((double)pagey * 2.834));
594:
595: /* Margins are 1/9 the page x and y. */
596:
1.24 schwarze 597: marginx = (size_t)((double)pagex / 9.0);
598: marginy = (size_t)((double)pagey / 9.0);
1.6 schwarze 599:
600: /* Line-height is 1.4em. */
601:
1.17 schwarze 602: lineheight = PNT2AFM(p, ((double)p->ps->scale * 1.4));
1.4 schwarze 603:
1.22 schwarze 604: p->ps->width = p->ps->lastwidth = (size_t)pagex;
1.18 schwarze 605: p->ps->height = (size_t)pagey;
1.17 schwarze 606: p->ps->header = pagey - (marginy / 2) - (lineheight / 2);
607: p->ps->top = pagey - marginy;
608: p->ps->footer = (marginy / 2) - (lineheight / 2);
609: p->ps->bottom = marginy;
610: p->ps->left = marginx;
611: p->ps->lineheight = lineheight;
1.4 schwarze 612:
1.6 schwarze 613: p->defrmargin = pagex - (marginx * 2);
1.1 schwarze 614: return(p);
1.22 schwarze 615: }
616:
617: static void
1.23 schwarze 618: ps_setwidth(struct termp *p, int iop, size_t width)
1.22 schwarze 619: {
620: size_t lastwidth;
621:
622: lastwidth = p->ps->width;
1.34 schwarze 623: if (iop > 0)
1.23 schwarze 624: p->ps->width += width;
1.34 schwarze 625: else if (iop == 0)
626: p->ps->width = width ? width : p->ps->lastwidth;
627: else if (p->ps->width > width)
1.23 schwarze 628: p->ps->width -= width;
629: else
1.34 schwarze 630: p->ps->width = 0;
1.22 schwarze 631: p->ps->lastwidth = lastwidth;
1.1 schwarze 632: }
633:
634: void
1.7 schwarze 635: pspdf_free(void *arg)
1.1 schwarze 636: {
637: struct termp *p;
638:
639: p = (struct termp *)arg;
640:
1.17 schwarze 641: if (p->ps->psmarg)
642: free(p->ps->psmarg);
643: if (p->ps->pdfobjs)
644: free(p->ps->pdfobjs);
1.1 schwarze 645:
1.17 schwarze 646: free(p->ps);
1.1 schwarze 647: term_free(p);
648: }
649:
650: static void
651: ps_printf(struct termp *p, const char *fmt, ...)
652: {
653: va_list ap;
1.7 schwarze 654: int pos, len;
1.1 schwarze 655:
656: va_start(ap, fmt);
657:
658: /*
659: * If we're running in regular mode, then pipe directly into
660: * vprintf(). If we're processing margins, then push the data
661: * into our growable margin buffer.
662: */
663:
1.17 schwarze 664: if ( ! (PS_MARGINS & p->ps->flags)) {
1.7 schwarze 665: len = vprintf(fmt, ap);
1.1 schwarze 666: va_end(ap);
1.24 schwarze 667: p->ps->pdfbytes += len < 0 ? 0 : (size_t)len;
1.1 schwarze 668: return;
669: }
670:
1.24 schwarze 671: /*
1.1 schwarze 672: * XXX: I assume that the in-margin print won't exceed
673: * PS_BUFSLOP (128 bytes), which is reasonable but still an
674: * assumption that will cause pukeage if it's not the case.
675: */
676:
1.9 schwarze 677: ps_growbuf(p, PS_BUFSLOP);
1.1 schwarze 678:
1.17 schwarze 679: pos = (int)p->ps->psmargcur;
1.19 schwarze 680: vsnprintf(&p->ps->psmarg[pos], PS_BUFSLOP, fmt, ap);
1.1 schwarze 681:
682: va_end(ap);
1.7 schwarze 683:
1.17 schwarze 684: p->ps->psmargcur = strlen(p->ps->psmarg);
1.1 schwarze 685: }
686:
687: static void
688: ps_putchar(struct termp *p, char c)
689: {
690: int pos;
691:
692: /* See ps_printf(). */
693:
1.17 schwarze 694: if ( ! (PS_MARGINS & p->ps->flags)) {
1.1 schwarze 695: putchar(c);
1.17 schwarze 696: p->ps->pdfbytes++;
1.1 schwarze 697: return;
698: }
699:
1.9 schwarze 700: ps_growbuf(p, 2);
1.1 schwarze 701:
1.17 schwarze 702: pos = (int)p->ps->psmargcur++;
703: p->ps->psmarg[pos++] = c;
704: p->ps->psmarg[pos] = '\0';
1.1 schwarze 705: }
706:
1.7 schwarze 707: static void
1.8 schwarze 708: pdf_obj(struct termp *p, size_t obj)
709: {
710:
711: assert(obj > 0);
712:
1.17 schwarze 713: if ((obj - 1) >= p->ps->pdfobjsz) {
714: p->ps->pdfobjsz = obj + 128;
1.25 schwarze 715: p->ps->pdfobjs = mandoc_reallocarray(p->ps->pdfobjs,
716: p->ps->pdfobjsz, sizeof(size_t));
1.8 schwarze 717: }
718:
1.17 schwarze 719: p->ps->pdfobjs[(int)obj - 1] = p->ps->pdfbytes;
1.8 schwarze 720: ps_printf(p, "%zu 0 obj\n", obj);
721: }
722:
723: static void
1.7 schwarze 724: ps_closepage(struct termp *p)
725: {
726: int i;
1.8 schwarze 727: size_t len, base;
728:
729: /*
730: * Close out a page that we've already flushed to output. In
731: * PostScript, we simply note that the page must be showed. In
732: * PDF, we must now create the Length, Resource, and Page node
733: * for the page contents.
734: */
1.7 schwarze 735:
1.17 schwarze 736: assert(p->ps->psmarg && p->ps->psmarg[0]);
737: ps_printf(p, "%s", p->ps->psmarg);
1.7 schwarze 738:
1.8 schwarze 739: if (TERMTYPE_PS != p->type) {
1.7 schwarze 740: ps_printf(p, "ET\n");
1.8 schwarze 741:
1.17 schwarze 742: len = p->ps->pdfbytes - p->ps->pdflastpg;
743: base = p->ps->pages * 4 + p->ps->pdfbody;
1.8 schwarze 744:
745: ps_printf(p, "endstream\nendobj\n");
746:
747: /* Length of content. */
748: pdf_obj(p, base + 1);
749: ps_printf(p, "%zu\nendobj\n", len);
750:
751: /* Resource for content. */
752: pdf_obj(p, base + 2);
753: ps_printf(p, "<<\n/ProcSet [/PDF /Text]\n");
1.7 schwarze 754: ps_printf(p, "/Font <<\n");
1.24 schwarze 755: for (i = 0; i < (int)TERMFONT__MAX; i++)
1.7 schwarze 756: ps_printf(p, "/F%d %d 0 R\n", i, 3 + i);
1.8 schwarze 757: ps_printf(p, ">>\n>>\n");
758:
759: /* Page node. */
760: pdf_obj(p, base + 3);
1.7 schwarze 761: ps_printf(p, "<<\n");
762: ps_printf(p, "/Type /Page\n");
763: ps_printf(p, "/Parent 2 0 R\n");
1.8 schwarze 764: ps_printf(p, "/Resources %zu 0 R\n", base + 2);
765: ps_printf(p, "/Contents %zu 0 R\n", base);
766: ps_printf(p, ">>\nendobj\n");
767: } else
768: ps_printf(p, "showpage\n");
1.7 schwarze 769:
1.17 schwarze 770: p->ps->pages++;
771: p->ps->psrow = p->ps->top;
772: assert( ! (PS_NEWPAGE & p->ps->flags));
773: p->ps->flags |= PS_NEWPAGE;
1.7 schwarze 774: }
775:
1.1 schwarze 776: static void
777: ps_end(struct termp *p)
778: {
1.8 schwarze 779: size_t i, xref, base;
1.1 schwarze 780:
781: /*
782: * At the end of the file, do one last showpage. This is the
783: * same behaviour as groff(1) and works for multiple pages as
784: * well as just one.
785: */
786:
1.17 schwarze 787: if ( ! (PS_NEWPAGE & p->ps->flags)) {
788: assert(0 == p->ps->flags);
789: assert('\0' == p->ps->last);
1.7 schwarze 790: ps_closepage(p);
1.6 schwarze 791: }
1.4 schwarze 792:
1.7 schwarze 793: if (TERMTYPE_PS == p->type) {
794: ps_printf(p, "%%%%Trailer\n");
1.17 schwarze 795: ps_printf(p, "%%%%Pages: %zu\n", p->ps->pages);
1.7 schwarze 796: ps_printf(p, "%%%%EOF\n");
797: return;
1.24 schwarze 798: }
1.7 schwarze 799:
1.8 schwarze 800: pdf_obj(p, 2);
801: ps_printf(p, "<<\n/Type /Pages\n");
1.7 schwarze 802: ps_printf(p, "/MediaBox [0 0 %zu %zu]\n",
1.17 schwarze 803: (size_t)AFM2PNT(p, p->ps->width),
804: (size_t)AFM2PNT(p, p->ps->height));
1.7 schwarze 805:
1.17 schwarze 806: ps_printf(p, "/Count %zu\n", p->ps->pages);
1.7 schwarze 807: ps_printf(p, "/Kids [");
808:
1.17 schwarze 809: for (i = 0; i < p->ps->pages; i++)
1.24 schwarze 810: ps_printf(p, " %zu 0 R", i * 4 + p->ps->pdfbody + 3);
1.8 schwarze 811:
1.24 schwarze 812: base = (p->ps->pages - 1) * 4 + p->ps->pdfbody + 4;
1.8 schwarze 813:
814: ps_printf(p, "]\n>>\nendobj\n");
815: pdf_obj(p, base);
1.7 schwarze 816: ps_printf(p, "<<\n");
817: ps_printf(p, "/Type /Catalog\n");
818: ps_printf(p, "/Pages 2 0 R\n");
819: ps_printf(p, ">>\n");
1.17 schwarze 820: xref = p->ps->pdfbytes;
1.7 schwarze 821: ps_printf(p, "xref\n");
1.8 schwarze 822: ps_printf(p, "0 %zu\n", base + 1);
823: ps_printf(p, "0000000000 65535 f \n");
824:
825: for (i = 0; i < base; i++)
1.24 schwarze 826: ps_printf(p, "%.10zu 00000 n \n",
827: p->ps->pdfobjs[(int)i]);
1.8 schwarze 828:
1.7 schwarze 829: ps_printf(p, "trailer\n");
830: ps_printf(p, "<<\n");
1.8 schwarze 831: ps_printf(p, "/Size %zu\n", base + 1);
832: ps_printf(p, "/Root %zu 0 R\n", base);
1.7 schwarze 833: ps_printf(p, "/Info 1 0 R\n");
834: ps_printf(p, ">>\n");
835: ps_printf(p, "startxref\n");
836: ps_printf(p, "%zu\n", xref);
837: ps_printf(p, "%%%%EOF\n");
1.1 schwarze 838: }
839:
840: static void
841: ps_begin(struct termp *p)
842: {
1.4 schwarze 843: int i;
1.1 schwarze 844:
1.24 schwarze 845: /*
1.2 schwarze 846: * Print margins into margin buffer. Nothing gets output to the
847: * screen yet, so we don't need to initialise the primary state.
1.1 schwarze 848: */
849:
1.17 schwarze 850: if (p->ps->psmarg) {
851: assert(p->ps->psmargsz);
852: p->ps->psmarg[0] = '\0';
1.1 schwarze 853: }
854:
1.17 schwarze 855: /*p->ps->pdfbytes = 0;*/
856: p->ps->psmargcur = 0;
857: p->ps->flags = PS_MARGINS;
858: p->ps->pscol = p->ps->left;
859: p->ps->psrow = p->ps->header;
1.1 schwarze 860:
1.2 schwarze 861: ps_setfont(p, TERMFONT_NONE);
1.1 schwarze 862:
863: (*p->headf)(p, p->argf);
864: (*p->endline)(p);
865:
1.17 schwarze 866: p->ps->pscol = p->ps->left;
867: p->ps->psrow = p->ps->footer;
1.1 schwarze 868:
869: (*p->footf)(p, p->argf);
870: (*p->endline)(p);
871:
1.17 schwarze 872: p->ps->flags &= ~PS_MARGINS;
1.2 schwarze 873:
1.17 schwarze 874: assert(0 == p->ps->flags);
875: assert(p->ps->psmarg);
876: assert('\0' != p->ps->psmarg[0]);
1.1 schwarze 877:
1.24 schwarze 878: /*
1.2 schwarze 879: * Print header and initialise page state. Following this,
880: * stuff gets printed to the screen, so make sure we're sane.
881: */
882:
1.7 schwarze 883: if (TERMTYPE_PS == p->type) {
884: ps_printf(p, "%%!PS-Adobe-3.0\n");
885: ps_printf(p, "%%%%DocumentData: Clean7Bit\n");
886: ps_printf(p, "%%%%Orientation: Portrait\n");
887: ps_printf(p, "%%%%Pages: (atend)\n");
888: ps_printf(p, "%%%%PageOrder: Ascend\n");
889: ps_printf(p, "%%%%DocumentMedia: "
1.24 schwarze 890: "Default %zu %zu 0 () ()\n",
891: (size_t)AFM2PNT(p, p->ps->width),
892: (size_t)AFM2PNT(p, p->ps->height));
1.7 schwarze 893: ps_printf(p, "%%%%DocumentNeededResources: font");
1.4 schwarze 894:
1.7 schwarze 895: for (i = 0; i < (int)TERMFONT__MAX; i++)
896: ps_printf(p, " %s", fonts[i].name);
897:
898: ps_printf(p, "\n%%%%EndComments\n");
899: } else {
900: ps_printf(p, "%%PDF-1.1\n");
1.8 schwarze 901: pdf_obj(p, 1);
1.7 schwarze 902: ps_printf(p, "<<\n");
903: ps_printf(p, ">>\n");
904: ps_printf(p, "endobj\n");
905:
906: for (i = 0; i < (int)TERMFONT__MAX; i++) {
1.8 schwarze 907: pdf_obj(p, (size_t)i + 3);
1.7 schwarze 908: ps_printf(p, "<<\n");
909: ps_printf(p, "/Type /Font\n");
910: ps_printf(p, "/Subtype /Type1\n");
1.20 schwarze 911: ps_printf(p, "/Name /F%d\n", i);
1.7 schwarze 912: ps_printf(p, "/BaseFont /%s\n", fonts[i].name);
913: ps_printf(p, ">>\n");
914: }
915: }
916:
1.17 schwarze 917: p->ps->pdfbody = (size_t)TERMFONT__MAX + 3;
918: p->ps->pscol = p->ps->left;
919: p->ps->psrow = p->ps->top;
920: p->ps->flags |= PS_NEWPAGE;
1.6 schwarze 921: ps_setfont(p, TERMFONT_NONE);
1.1 schwarze 922: }
923:
924: static void
1.4 schwarze 925: ps_pletter(struct termp *p, int c)
1.1 schwarze 926: {
1.4 schwarze 927: int f;
1.6 schwarze 928:
929: /*
930: * If we haven't opened a page context, then output that we're
931: * in a new page and make sure the font is correctly set.
932: */
933:
1.17 schwarze 934: if (PS_NEWPAGE & p->ps->flags) {
1.7 schwarze 935: if (TERMTYPE_PS == p->type) {
1.24 schwarze 936: ps_printf(p, "%%%%Page: %zu %zu\n",
937: p->ps->pages + 1, p->ps->pages + 1);
938: ps_printf(p, "/%s %zu selectfont\n",
939: fonts[(int)p->ps->lastf].name,
940: p->ps->scale);
1.7 schwarze 941: } else {
1.24 schwarze 942: pdf_obj(p, p->ps->pdfbody +
943: p->ps->pages * 4);
1.7 schwarze 944: ps_printf(p, "<<\n");
1.24 schwarze 945: ps_printf(p, "/Length %zu 0 R\n",
946: p->ps->pdfbody + 1 + p->ps->pages * 4);
1.7 schwarze 947: ps_printf(p, ">>\nstream\n");
948: }
1.17 schwarze 949: p->ps->pdflastpg = p->ps->pdfbytes;
950: p->ps->flags &= ~PS_NEWPAGE;
1.6 schwarze 951: }
1.24 schwarze 952:
1.2 schwarze 953: /*
954: * If we're not in a PostScript "word" context, then open one
955: * now at the current cursor.
956: */
957:
1.17 schwarze 958: if ( ! (PS_INLINE & p->ps->flags)) {
1.7 schwarze 959: if (TERMTYPE_PS != p->type) {
1.24 schwarze 960: ps_printf(p, "BT\n/F%d %zu Tf\n",
961: (int)p->ps->lastf, p->ps->scale);
1.7 schwarze 962: ps_printf(p, "%.3f %.3f Td\n(",
1.24 schwarze 963: AFM2PNT(p, p->ps->pscol),
964: AFM2PNT(p, p->ps->psrow));
1.7 schwarze 965: } else
1.24 schwarze 966: ps_printf(p, "%.3f %.3f moveto\n(",
967: AFM2PNT(p, p->ps->pscol),
968: AFM2PNT(p, p->ps->psrow));
1.17 schwarze 969: p->ps->flags |= PS_INLINE;
1.1 schwarze 970: }
971:
1.17 schwarze 972: assert( ! (PS_NEWPAGE & p->ps->flags));
1.6 schwarze 973:
1.1 schwarze 974: /*
975: * We need to escape these characters as per the PostScript
976: * specification. We would also escape non-graphable characters
977: * (like tabs), but none of them would get to this point and
978: * it's superfluous to abort() on them.
979: */
980:
981: switch (c) {
1.24 schwarze 982: case '(':
1.1 schwarze 983: /* FALLTHROUGH */
1.24 schwarze 984: case ')':
1.1 schwarze 985: /* FALLTHROUGH */
1.24 schwarze 986: case '\\':
1.1 schwarze 987: ps_putchar(p, '\\');
988: break;
989: default:
990: break;
991: }
992:
993: /* Write the character and adjust where we are on the page. */
1.2 schwarze 994:
1.17 schwarze 995: f = (int)p->ps->lastf;
1.4 schwarze 996:
1.26 schwarze 997: if (c <= 32 || c - 32 >= MAXCHAR)
998: c = 32;
1.4 schwarze 999:
1.6 schwarze 1000: ps_putchar(p, (char)c);
1.4 schwarze 1001: c -= 32;
1.17 schwarze 1002: p->ps->pscol += (size_t)fonts[f].gly[c].wx;
1.1 schwarze 1003: }
1004:
1005: static void
1.2 schwarze 1006: ps_pclose(struct termp *p)
1007: {
1008:
1.24 schwarze 1009: /*
1.2 schwarze 1010: * Spit out that we're exiting a word context (this is a
1011: * "partial close" because we don't check the last-char buffer
1012: * or anything).
1013: */
1014:
1.17 schwarze 1015: if ( ! (PS_INLINE & p->ps->flags))
1.2 schwarze 1016: return;
1.24 schwarze 1017:
1.7 schwarze 1018: if (TERMTYPE_PS != p->type) {
1019: ps_printf(p, ") Tj\nET\n");
1020: } else
1021: ps_printf(p, ") show\n");
1022:
1.17 schwarze 1023: p->ps->flags &= ~PS_INLINE;
1.2 schwarze 1024: }
1025:
1026: static void
1027: ps_fclose(struct termp *p)
1028: {
1029:
1030: /*
1031: * Strong closure: if we have a last-char, spit it out after
1032: * checking that we're in the right font mode. This will of
1033: * course open a new scope, if applicable.
1034: *
1035: * Following this, close out any scope that's open.
1036: */
1037:
1.29 schwarze 1038: if (p->ps->last != '\0') {
1.32 schwarze 1039: assert( ! (p->ps->flags & PS_BACKSP));
1.29 schwarze 1040: if (p->ps->nextf != p->ps->lastf) {
1.2 schwarze 1041: ps_pclose(p);
1.29 schwarze 1042: ps_setfont(p, p->ps->nextf);
1.2 schwarze 1043: }
1.29 schwarze 1044: p->ps->nextf = TERMFONT_NONE;
1.17 schwarze 1045: ps_pletter(p, p->ps->last);
1046: p->ps->last = '\0';
1.2 schwarze 1047: }
1048:
1.17 schwarze 1049: if ( ! (PS_INLINE & p->ps->flags))
1.2 schwarze 1050: return;
1051:
1052: ps_pclose(p);
1053: }
1054:
1055: static void
1.17 schwarze 1056: ps_letter(struct termp *p, int arg)
1.2 schwarze 1057: {
1.37 schwarze 1058: size_t savecol, wx;
1.30 schwarze 1059: char c;
1.17 schwarze 1060:
1061: c = arg >= 128 || arg <= 0 ? '?' : arg;
1.2 schwarze 1062:
1063: /*
1.32 schwarze 1064: * When receiving a backspace, merely flag it.
1065: * We don't know yet whether it is
1066: * a font instruction or an overstrike.
1.2 schwarze 1067: */
1068:
1.32 schwarze 1069: if (c == '\b') {
1.29 schwarze 1070: assert(p->ps->last != '\0');
1.32 schwarze 1071: assert( ! (p->ps->flags & PS_BACKSP));
1072: p->ps->flags |= PS_BACKSP;
1073: return;
1074: }
1075:
1076: /*
1077: * Decode font instructions.
1078: */
1079:
1080: if (p->ps->flags & PS_BACKSP) {
1081: if (p->ps->last == '_') {
1.29 schwarze 1082: switch (p->ps->nextf) {
1083: case TERMFONT_BI:
1084: break;
1085: case TERMFONT_BOLD:
1086: p->ps->nextf = TERMFONT_BI;
1087: break;
1088: default:
1089: p->ps->nextf = TERMFONT_UNDER;
1090: }
1.32 schwarze 1091: p->ps->last = c;
1092: p->ps->flags &= ~PS_BACKSP;
1093: return;
1094: }
1095: if (p->ps->last == c) {
1.29 schwarze 1096: switch (p->ps->nextf) {
1097: case TERMFONT_BI:
1098: break;
1099: case TERMFONT_UNDER:
1100: p->ps->nextf = TERMFONT_BI;
1101: break;
1102: default:
1103: p->ps->nextf = TERMFONT_BOLD;
1.2 schwarze 1104: }
1.32 schwarze 1105: p->ps->flags &= ~PS_BACKSP;
1106: return;
1.2 schwarze 1107: }
1.32 schwarze 1108:
1109: /*
1110: * This is not a font instruction, but rather
1111: * the next character. Prepare for overstrike.
1112: */
1113:
1114: savecol = p->ps->pscol;
1115: } else
1116: savecol = SIZE_MAX;
1117:
1118: /*
1119: * We found the next character, so the font instructions
1120: * for the previous one are complete.
1121: * Use them and print it.
1122: */
1123:
1124: if (p->ps->last != '\0') {
1.29 schwarze 1125: if (p->ps->nextf != p->ps->lastf) {
1.2 schwarze 1126: ps_pclose(p);
1.29 schwarze 1127: ps_setfont(p, p->ps->nextf);
1.2 schwarze 1128: }
1.29 schwarze 1129: p->ps->nextf = TERMFONT_NONE;
1.37 schwarze 1130:
1131: /*
1132: * For an overstrike, if a previous character
1133: * was wider, advance to center the new one.
1134: */
1135:
1136: if (p->ps->pscolnext) {
1137: wx = fonts[p->ps->lastf].gly[(int)p->ps->last-32].wx;
1138: if (p->ps->pscol + wx < p->ps->pscolnext)
1139: p->ps->pscol = (p->ps->pscol +
1140: p->ps->pscolnext - wx) / 2;
1141: }
1142:
1.29 schwarze 1143: ps_pletter(p, p->ps->last);
1.37 schwarze 1144:
1145: /*
1146: * For an overstrike, if a previous character
1147: * was wider, advance to the end of the old one.
1148: */
1149:
1150: if (p->ps->pscol < p->ps->pscolnext) {
1151: ps_pclose(p);
1152: p->ps->pscol = p->ps->pscolnext;
1153: }
1.2 schwarze 1154: }
1.32 schwarze 1155:
1156: /*
1157: * Do not print the current character yet because font
1158: * instructions might follow; only remember it.
1159: * For the first character, nothing else is done.
1160: * The final character will get printed from ps_fclose().
1161: */
1162:
1.29 schwarze 1163: p->ps->last = c;
1.32 schwarze 1164:
1165: /*
1166: * For an overstrike, back up to the previous position.
1.37 schwarze 1167: * If the previous character is wider than any it overstrikes,
1168: * remember the current position, because it might also be
1169: * wider than all that will overstrike it.
1.32 schwarze 1170: */
1171:
1172: if (savecol != SIZE_MAX) {
1.37 schwarze 1173: if (p->ps->pscolnext < p->ps->pscol)
1174: p->ps->pscolnext = p->ps->pscol;
1.32 schwarze 1175: ps_pclose(p);
1176: p->ps->pscol = savecol;
1177: p->ps->flags &= ~PS_BACKSP;
1.37 schwarze 1178: } else
1179: p->ps->pscolnext = 0;
1.2 schwarze 1180: }
1181:
1182: static void
1.1 schwarze 1183: ps_advance(struct termp *p, size_t len)
1184: {
1185:
1.2 schwarze 1186: /*
1187: * Advance some spaces. This can probably be made smarter,
1188: * i.e., to have multiple space-separated words in the same
1189: * scope, but this is easier: just close out the current scope
1190: * and readjust our column settings.
1191: */
1.1 schwarze 1192:
1.2 schwarze 1193: ps_fclose(p);
1.17 schwarze 1194: p->ps->pscol += len;
1.1 schwarze 1195: }
1196:
1197: static void
1198: ps_endline(struct termp *p)
1199: {
1200:
1.2 schwarze 1201: /* Close out any scopes we have open: we're at eoln. */
1202:
1203: ps_fclose(p);
1204:
1205: /*
1206: * If we're in the margin, don't try to recalculate our current
1207: * row. XXX: if the column tries to be fancy with multiple
1.24 schwarze 1208: * lines, we'll do nasty stuff.
1.2 schwarze 1209: */
1.1 schwarze 1210:
1.17 schwarze 1211: if (PS_MARGINS & p->ps->flags)
1.6 schwarze 1212: return;
1213:
1214: /* Left-justify. */
1215:
1.17 schwarze 1216: p->ps->pscol = p->ps->left;
1.6 schwarze 1217:
1218: /* If we haven't printed anything, return. */
1219:
1.17 schwarze 1220: if (PS_NEWPAGE & p->ps->flags)
1.1 schwarze 1221: return;
1222:
1.2 schwarze 1223: /*
1224: * Put us down a line. If we're at the page bottom, spit out a
1225: * showpage and restart our row.
1226: */
1227:
1.24 schwarze 1228: if (p->ps->psrow >= p->ps->lineheight + p->ps->bottom) {
1.17 schwarze 1229: p->ps->psrow -= p->ps->lineheight;
1.1 schwarze 1230: return;
1231: }
1232:
1.7 schwarze 1233: ps_closepage(p);
1.1 schwarze 1234: }
1.2 schwarze 1235:
1236: static void
1237: ps_setfont(struct termp *p, enum termfont f)
1238: {
1239:
1.4 schwarze 1240: assert(f < TERMFONT__MAX);
1.17 schwarze 1241: p->ps->lastf = f;
1.24 schwarze 1242:
1.6 schwarze 1243: /*
1244: * If we're still at the top of the page, let the font-setting
1245: * be delayed until we actually have stuff to print.
1246: */
1247:
1.17 schwarze 1248: if (PS_NEWPAGE & p->ps->flags)
1.6 schwarze 1249: return;
1250:
1.7 schwarze 1251: if (TERMTYPE_PS == p->type)
1.24 schwarze 1252: ps_printf(p, "/%s %zu selectfont\n",
1253: fonts[(int)f].name, p->ps->scale);
1.7 schwarze 1254: else
1.24 schwarze 1255: ps_printf(p, "/F%d %zu Tf\n",
1256: (int)f, p->ps->scale);
1.2 schwarze 1257: }
1258:
1.3 schwarze 1259: static size_t
1.17 schwarze 1260: ps_width(const struct termp *p, int c)
1.3 schwarze 1261: {
1262:
1.4 schwarze 1263: if (c <= 32 || c - 32 >= MAXCHAR)
1.26 schwarze 1264: c = 0;
1265: else
1266: c -= 32;
1.4 schwarze 1267:
1.17 schwarze 1268: return((size_t)fonts[(int)TERMFONT_NONE].gly[c].wx);
1.6 schwarze 1269: }
1270:
1271: static double
1272: ps_hspan(const struct termp *p, const struct roffsu *su)
1273: {
1274: double r;
1.24 schwarze 1275:
1.6 schwarze 1276: /*
1277: * All of these measurements are derived by converting from the
1278: * native measurement to AFM units.
1279: */
1280: switch (su->unit) {
1.28 schwarze 1281: case SCALE_BU:
1282: /*
1283: * Traditionally, the default unit is fixed to the
1284: * output media. So this would refer to the point. In
1285: * mandoc(1), however, we stick to the default terminal
1286: * scaling unit so that output is the same regardless
1287: * the media.
1288: */
1289: r = PNT2AFM(p, su->scale * 72.0 / 240.0);
1290: break;
1.24 schwarze 1291: case SCALE_CM:
1.28 schwarze 1292: r = PNT2AFM(p, su->scale * 72.0 / 2.54);
1293: break;
1294: case SCALE_EM:
1295: r = su->scale *
1296: fonts[(int)TERMFONT_NONE].gly[109 - 32].wx;
1297: break;
1298: case SCALE_EN:
1299: r = su->scale *
1300: fonts[(int)TERMFONT_NONE].gly[110 - 32].wx;
1.6 schwarze 1301: break;
1.24 schwarze 1302: case SCALE_IN:
1.27 schwarze 1303: r = PNT2AFM(p, su->scale * 72.0);
1.6 schwarze 1304: break;
1.28 schwarze 1305: case SCALE_MM:
1306: r = su->scale *
1307: fonts[(int)TERMFONT_NONE].gly[109 - 32].wx / 100.0;
1308: break;
1.24 schwarze 1309: case SCALE_PC:
1.27 schwarze 1310: r = PNT2AFM(p, su->scale * 12.0);
1.6 schwarze 1311: break;
1.24 schwarze 1312: case SCALE_PT:
1.28 schwarze 1313: r = PNT2AFM(p, su->scale * 1.0);
1.6 schwarze 1314: break;
1.24 schwarze 1315: case SCALE_VS:
1.17 schwarze 1316: r = su->scale * p->ps->lineheight;
1.6 schwarze 1317: break;
1318: default:
1319: r = su->scale;
1320: break;
1321: }
1322:
1323: return(r);
1.17 schwarze 1324: }
1325:
1326: static void
1327: ps_growbuf(struct termp *p, size_t sz)
1328: {
1329: if (p->ps->psmargcur + sz <= p->ps->psmargsz)
1330: return;
1331:
1332: if (sz < PS_BUFSLOP)
1333: sz = PS_BUFSLOP;
1334:
1335: p->ps->psmargsz += sz;
1.25 schwarze 1336: p->ps->psmarg = mandoc_realloc(p->ps->psmarg, p->ps->psmargsz);
1.3 schwarze 1337: }
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