Annotation of mandoc/term_ps.c, Revision 1.50
1.50 ! kristaps 1: /* $Id: term_ps.c,v 1.49 2011/05/14 17:54:42 kristaps Exp $ */
1.1 kristaps 2: /*
1.34 schwarze 3: * Copyright (c) 2010 Kristaps Dzonsons <kristaps@bsd.lv>
1.1 kristaps 4: *
5: * Permission to use, copy, modify, and distribute this software for any
6: * purpose with or without fee is hereby granted, provided that the above
7: * copyright notice and this permission notice appear in all copies.
8: *
9: * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
10: * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
11: * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
12: * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
13: * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
14: * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
15: * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
16: */
17: #ifdef HAVE_CONFIG_H
18: #include "config.h"
19: #endif
20:
1.43 kristaps 21: #include <sys/types.h>
1.4 kristaps 22:
1.2 kristaps 23: #include <assert.h>
1.4 kristaps 24: #include <stdarg.h>
1.17 kristaps 25: #include <stdint.h>
1.2 kristaps 26: #include <stdio.h>
1.1 kristaps 27: #include <stdlib.h>
1.4 kristaps 28: #include <string.h>
1.13 kristaps 29: #include <time.h>
1.26 kristaps 30: #include <unistd.h>
1.1 kristaps 31:
1.42 schwarze 32: #include "mandoc.h"
1.1 kristaps 33: #include "out.h"
34: #include "main.h"
35: #include "term.h"
36:
1.50 ! kristaps 37: /* These work the buffer used by the header and footer. */
! 38: #define PS_BUFSLOP 128
! 39:
1.21 kristaps 40: /* Convert PostScript point "x" to an AFM unit. */
1.25 kristaps 41: #define PNT2AFM(p, x) /* LINTED */ \
1.50 ! kristaps 42: (size_t)((double)(x) * (1000.0 / (double)(p)->ps->scale))
1.21 kristaps 43:
44: /* Convert an AFM unit "x" to a PostScript points */
1.25 kristaps 45: #define AFM2PNT(p, x) /* LINTED */ \
1.50 ! kristaps 46: ((double)(x) / (1000.0 / (double)(p)->ps->scale))
1.21 kristaps 47:
1.13 kristaps 48: struct glyph {
1.36 kristaps 49: unsigned short wx; /* WX in AFM */
1.13 kristaps 50: };
51:
52: struct font {
53: const char *name; /* FontName in AFM */
1.15 kristaps 54: #define MAXCHAR 95 /* total characters we can handle */
1.13 kristaps 55: struct glyph gly[MAXCHAR]; /* glyph metrics */
56: };
57:
1.50 ! kristaps 58: struct termp_ps {
! 59: int flags;
! 60: #define PS_INLINE (1 << 0) /* we're in a word */
! 61: #define PS_MARGINS (1 << 1) /* we're in the margins */
! 62: #define PS_NEWPAGE (1 << 2) /* new page, no words yet */
! 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 */
! 68: char last; /* character buffer */
! 69: enum termfont lastf; /* last set font */
! 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) */
! 77: size_t left; /* body left (AFM units) */
! 78: size_t header; /* header pos (AFM units) */
! 79: size_t footer; /* footer pos (AFM units) */
! 80: size_t pdfbytes; /* current output byte */
! 81: size_t pdflastpg; /* byte of last page mark */
! 82: size_t pdfbody; /* start of body object */
! 83: size_t *pdfobjs; /* table of object offsets */
! 84: size_t pdfobjsz; /* size of pdfobjs */
! 85: };
! 86:
! 87: static double ps_hspan(const struct termp *,
! 88: const struct roffsu *);
! 89: static size_t ps_width(const struct termp *, int);
! 90: static void ps_advance(struct termp *, size_t);
! 91: static void ps_begin(struct termp *);
! 92: static void ps_closepage(struct termp *);
! 93: static void ps_end(struct termp *);
! 94: static void ps_endline(struct termp *);
! 95: static void ps_fclose(struct termp *);
! 96: static void ps_growbuf(struct termp *, size_t);
! 97: static void ps_letter(struct termp *, int);
! 98: static void ps_pclose(struct termp *);
! 99: static void ps_pletter(struct termp *, int);
! 100: static void ps_printf(struct termp *, const char *, ...);
! 101: static void ps_putchar(struct termp *, char);
! 102: static void ps_setfont(struct termp *, enum termfont);
! 103: static struct termp *pspdf_alloc(char *);
! 104: static void pdf_obj(struct termp *, size_t);
! 105:
1.13 kristaps 106: /*
107: * We define, for the time being, three fonts: bold, oblique/italic, and
108: * normal (roman). The following table hard-codes the font metrics for
109: * ASCII, i.e., 32--127.
110: */
111:
1.16 kristaps 112: static const struct font fonts[TERMFONT__MAX] = {
1.24 kristaps 113: { "Times-Roman", {
114: { 250 },
115: { 333 },
116: { 408 },
117: { 500 },
118: { 500 },
119: { 833 },
120: { 778 },
121: { 333 },
122: { 333 },
123: { 333 },
124: { 500 },
125: { 564 },
126: { 250 },
127: { 333 },
128: { 250 },
129: { 278 },
130: { 500 },
131: { 500 },
132: { 500 },
133: { 500 },
134: { 500 },
135: { 500 },
136: { 500 },
137: { 500 },
138: { 500 },
139: { 500 },
140: { 278 },
141: { 278 },
142: { 564 },
143: { 564 },
144: { 564 },
145: { 444 },
146: { 921 },
147: { 722 },
148: { 667 },
149: { 667 },
150: { 722 },
151: { 611 },
152: { 556 },
153: { 722 },
154: { 722 },
155: { 333 },
156: { 389 },
157: { 722 },
158: { 611 },
159: { 889 },
160: { 722 },
161: { 722 },
162: { 556 },
163: { 722 },
164: { 667 },
165: { 556 },
166: { 611 },
167: { 722 },
168: { 722 },
169: { 944 },
170: { 722 },
171: { 722 },
172: { 611 },
173: { 333 },
174: { 278 },
175: { 333 },
176: { 469 },
177: { 500 },
178: { 333 },
179: { 444 },
180: { 500 },
181: { 444 },
182: { 500},
183: { 444},
184: { 333},
185: { 500},
186: { 500},
187: { 278},
188: { 278},
189: { 500},
190: { 278},
191: { 778},
192: { 500},
193: { 500},
194: { 500},
195: { 500},
196: { 333},
197: { 389},
198: { 278},
199: { 500},
200: { 500},
201: { 722},
202: { 500},
203: { 500},
204: { 444},
205: { 480},
206: { 200},
207: { 480},
208: { 541},
209: } },
210: { "Times-Bold", {
211: { 250 },
212: { 333 },
213: { 555 },
214: { 500 },
215: { 500 },
216: { 1000 },
217: { 833 },
218: { 333 },
219: { 333 },
220: { 333 },
221: { 500 },
222: { 570 },
223: { 250 },
224: { 333 },
225: { 250 },
226: { 278 },
227: { 500 },
228: { 500 },
229: { 500 },
230: { 500 },
231: { 500 },
232: { 500 },
233: { 500 },
234: { 500 },
235: { 500 },
236: { 500 },
237: { 333 },
238: { 333 },
239: { 570 },
240: { 570 },
241: { 570 },
242: { 500 },
243: { 930 },
244: { 722 },
245: { 667 },
246: { 722 },
247: { 722 },
248: { 667 },
249: { 611 },
250: { 778 },
251: { 778 },
252: { 389 },
253: { 500 },
254: { 778 },
255: { 667 },
256: { 944 },
257: { 722 },
258: { 778 },
259: { 611 },
260: { 778 },
261: { 722 },
262: { 556 },
263: { 667 },
264: { 722 },
265: { 722 },
266: { 1000 },
267: { 722 },
268: { 722 },
269: { 667 },
270: { 333 },
271: { 278 },
272: { 333 },
273: { 581 },
274: { 500 },
275: { 333 },
276: { 500 },
277: { 556 },
278: { 444 },
1.22 kristaps 279: { 556 },
1.24 kristaps 280: { 444 },
281: { 333 },
1.22 kristaps 282: { 500 },
1.24 kristaps 283: { 556 },
1.22 kristaps 284: { 278 },
1.24 kristaps 285: { 333 },
286: { 556 },
1.22 kristaps 287: { 278 },
1.24 kristaps 288: { 833 },
1.22 kristaps 289: { 556 },
1.24 kristaps 290: { 500 },
1.22 kristaps 291: { 556 },
292: { 556 },
293: { 444 },
1.24 kristaps 294: { 389 },
295: { 333 },
1.22 kristaps 296: { 556 },
297: { 500 },
1.24 kristaps 298: { 722 },
299: { 500 },
1.22 kristaps 300: { 500 },
1.24 kristaps 301: { 444 },
302: { 394 },
303: { 220 },
304: { 394 },
305: { 520 },
1.13 kristaps 306: } },
1.24 kristaps 307: { "Times-Italic", {
308: { 250 },
309: { 333 },
310: { 420 },
311: { 500 },
312: { 500 },
313: { 833 },
314: { 778 },
315: { 333 },
316: { 333 },
317: { 333 },
318: { 500 },
319: { 675 },
320: { 250 },
321: { 333 },
322: { 250 },
323: { 278 },
324: { 500 },
325: { 500 },
326: { 500 },
327: { 500 },
328: { 500 },
329: { 500 },
330: { 500 },
331: { 500 },
332: { 500 },
333: { 500 },
334: { 333 },
335: { 333 },
336: { 675 },
337: { 675 },
338: { 675 },
339: { 500 },
340: { 920 },
341: { 611 },
342: { 611 },
343: { 667 },
344: { 722 },
345: { 611 },
346: { 611 },
347: { 722 },
348: { 722 },
349: { 333 },
350: { 444 },
351: { 667 },
352: { 556 },
353: { 833 },
354: { 667 },
355: { 722 },
356: { 611 },
357: { 722 },
358: { 611 },
359: { 500 },
360: { 556 },
361: { 722 },
362: { 611 },
363: { 833 },
364: { 611 },
365: { 556 },
366: { 556 },
367: { 389 },
368: { 278 },
369: { 389 },
370: { 422 },
371: { 500 },
372: { 333 },
373: { 500 },
374: { 500 },
375: { 444 },
1.22 kristaps 376: { 500 },
1.24 kristaps 377: { 444 },
378: { 278 },
1.22 kristaps 379: { 500 },
380: { 500 },
381: { 278 },
1.24 kristaps 382: { 278 },
383: { 444 },
384: { 278 },
385: { 722 },
386: { 500 },
387: { 500 },
388: { 500 },
1.22 kristaps 389: { 500 },
1.24 kristaps 390: { 389 },
391: { 389 },
1.22 kristaps 392: { 278 },
393: { 500 },
1.24 kristaps 394: { 444 },
395: { 667 },
396: { 444 },
397: { 444 },
398: { 389 },
399: { 400 },
1.22 kristaps 400: { 275 },
1.24 kristaps 401: { 400 },
402: { 541 },
1.13 kristaps 403: } },
404: };
405:
1.37 kristaps 406: void *
407: pdf_alloc(char *outopts)
408: {
409: struct termp *p;
410:
1.38 kristaps 411: if (NULL != (p = pspdf_alloc(outopts)))
412: p->type = TERMTYPE_PDF;
1.37 kristaps 413:
414: return(p);
415: }
1.2 kristaps 416:
1.1 kristaps 417: void *
1.17 kristaps 418: ps_alloc(char *outopts)
1.1 kristaps 419: {
420: struct termp *p;
1.37 kristaps 421:
1.38 kristaps 422: if (NULL != (p = pspdf_alloc(outopts)))
423: p->type = TERMTYPE_PS;
1.37 kristaps 424:
425: return(p);
426: }
427:
428: static struct termp *
429: pspdf_alloc(char *outopts)
430: {
431: struct termp *p;
1.28 kristaps 432: size_t pagex, pagey, marginx, marginy, lineheight;
1.17 kristaps 433: const char *toks[2];
1.25 kristaps 434: const char *pp;
1.17 kristaps 435: char *v;
1.1 kristaps 436:
1.46 kristaps 437: p = term_alloc(TERMENC_ASCII);
1.50 ! kristaps 438: p->ps = mandoc_calloc(1, sizeof(struct termp_ps));
1.1 kristaps 439:
1.19 kristaps 440: p->advance = ps_advance;
1.2 kristaps 441: p->begin = ps_begin;
442: p->end = ps_end;
443: p->endline = ps_endline;
1.19 kristaps 444: p->hspan = ps_hspan;
445: p->letter = ps_letter;
1.11 kristaps 446: p->width = ps_width;
1.21 kristaps 447:
1.17 kristaps 448: toks[0] = "paper";
449: toks[1] = NULL;
450:
1.25 kristaps 451: pp = NULL;
1.19 kristaps 452:
1.17 kristaps 453: while (outopts && *outopts)
454: switch (getsubopt(&outopts, UNCONST(toks), &v)) {
455: case (0):
1.25 kristaps 456: pp = v;
1.17 kristaps 457: break;
458: default:
459: break;
460: }
1.16 kristaps 461:
1.25 kristaps 462: /* Default to US letter (millimetres). */
463:
1.31 kristaps 464: pagex = 216;
465: pagey = 279;
1.25 kristaps 466:
467: /*
468: * The ISO-269 paper sizes can be calculated automatically, but
469: * it would require bringing in -lm for pow() and I'd rather not
470: * do that. So just do it the easy way for now. Since this
471: * only happens once, I'm not terribly concerned.
472: */
473:
474: if (pp && strcasecmp(pp, "letter")) {
475: if (0 == strcasecmp(pp, "a3")) {
476: pagex = 297;
477: pagey = 420;
478: } else if (0 == strcasecmp(pp, "a4")) {
479: pagex = 210;
480: pagey = 297;
481: } else if (0 == strcasecmp(pp, "a5")) {
482: pagex = 148;
483: pagey = 210;
484: } else if (0 == strcasecmp(pp, "legal")) {
485: pagex = 216;
486: pagey = 356;
487: } else if (2 != sscanf(pp, "%zux%zu", &pagex, &pagey))
488: fprintf(stderr, "%s: Unknown paper\n", pp);
1.27 kristaps 489: } else if (NULL == pp)
490: pp = "letter";
491:
492: /*
493: * This MUST be defined before any PNT2AFM or AFM2PNT
494: * calculations occur.
495: */
496:
1.50 ! kristaps 497: p->ps->scale = 11;
1.27 kristaps 498:
1.25 kristaps 499: /* Remember millimetres -> AFM units. */
500:
501: pagex = PNT2AFM(p, ((double)pagex * 2.834));
502: pagey = PNT2AFM(p, ((double)pagey * 2.834));
503:
1.28 kristaps 504: /* Margins are 1/9 the page x and y. */
1.27 kristaps 505:
1.29 kristaps 506: marginx = /* LINTED */
507: (size_t)((double)pagex / 9.0);
508: marginy = /* LINTED */
509: (size_t)((double)pagey / 9.0);
1.27 kristaps 510:
1.31 kristaps 511: /* Line-height is 1.4em. */
512:
1.50 ! kristaps 513: lineheight = PNT2AFM(p, ((double)p->ps->scale * 1.4));
1.16 kristaps 514:
1.50 ! kristaps 515: p->ps->width = pagex;
! 516: p->ps->height = pagey;
! 517: p->ps->header = pagey - (marginy / 2) - (lineheight / 2);
! 518: p->ps->top = pagey - marginy;
! 519: p->ps->footer = (marginy / 2) - (lineheight / 2);
! 520: p->ps->bottom = marginy;
! 521: p->ps->left = marginx;
! 522: p->ps->lineheight = lineheight;
1.16 kristaps 523:
1.28 kristaps 524: p->defrmargin = pagex - (marginx * 2);
1.1 kristaps 525: return(p);
526: }
527:
528:
529: void
1.37 kristaps 530: pspdf_free(void *arg)
1.1 kristaps 531: {
1.4 kristaps 532: struct termp *p;
533:
534: p = (struct termp *)arg;
535:
1.50 ! kristaps 536: if (p->ps->psmarg)
! 537: free(p->ps->psmarg);
! 538: if (p->ps->pdfobjs)
! 539: free(p->ps->pdfobjs);
1.4 kristaps 540:
1.50 ! kristaps 541: free(p->ps);
1.4 kristaps 542: term_free(p);
543: }
544:
545:
546: static void
547: ps_printf(struct termp *p, const char *fmt, ...)
548: {
549: va_list ap;
1.37 kristaps 550: int pos, len;
1.4 kristaps 551:
552: va_start(ap, fmt);
553:
554: /*
555: * If we're running in regular mode, then pipe directly into
556: * vprintf(). If we're processing margins, then push the data
557: * into our growable margin buffer.
558: */
1.1 kristaps 559:
1.50 ! kristaps 560: if ( ! (PS_MARGINS & p->ps->flags)) {
1.37 kristaps 561: len = vprintf(fmt, ap);
1.4 kristaps 562: va_end(ap);
1.50 ! kristaps 563: p->ps->pdfbytes += /* LINTED */
1.37 kristaps 564: len < 0 ? 0 : (size_t)len;
1.4 kristaps 565: return;
566: }
567:
568: /*
569: * XXX: I assume that the in-margin print won't exceed
570: * PS_BUFSLOP (128 bytes), which is reasonable but still an
571: * assumption that will cause pukeage if it's not the case.
572: */
573:
1.40 joerg 574: ps_growbuf(p, PS_BUFSLOP);
1.4 kristaps 575:
1.50 ! kristaps 576: pos = (int)p->ps->psmargcur;
! 577: len = vsnprintf(&p->ps->psmarg[pos], PS_BUFSLOP, fmt, ap);
1.5 kristaps 578:
579: va_end(ap);
1.37 kristaps 580:
1.50 ! kristaps 581: p->ps->psmargcur = strlen(p->ps->psmarg);
1.4 kristaps 582: }
583:
584:
585: static void
586: ps_putchar(struct termp *p, char c)
587: {
588: int pos;
589:
590: /* See ps_printf(). */
591:
1.50 ! kristaps 592: if ( ! (PS_MARGINS & p->ps->flags)) {
1.44 kristaps 593: /* LINTED */
1.4 kristaps 594: putchar(c);
1.50 ! kristaps 595: p->ps->pdfbytes++;
1.4 kristaps 596: return;
597: }
598:
1.40 joerg 599: ps_growbuf(p, 2);
1.4 kristaps 600:
1.50 ! kristaps 601: pos = (int)p->ps->psmargcur++;
! 602: p->ps->psmarg[pos++] = c;
! 603: p->ps->psmarg[pos] = '\0';
1.2 kristaps 604: }
605:
606:
1.37 kristaps 607: static void
1.39 kristaps 608: pdf_obj(struct termp *p, size_t obj)
609: {
610:
611: assert(obj > 0);
612:
1.50 ! kristaps 613: if ((obj - 1) >= p->ps->pdfobjsz) {
! 614: p->ps->pdfobjsz = obj + 128;
! 615: p->ps->pdfobjs = realloc
! 616: (p->ps->pdfobjs,
! 617: p->ps->pdfobjsz * sizeof(size_t));
! 618: if (NULL == p->ps->pdfobjs) {
1.39 kristaps 619: perror(NULL);
1.44 kristaps 620: exit((int)MANDOCLEVEL_SYSERR);
1.39 kristaps 621: }
622: }
623:
1.50 ! kristaps 624: p->ps->pdfobjs[(int)obj - 1] = p->ps->pdfbytes;
1.39 kristaps 625: ps_printf(p, "%zu 0 obj\n", obj);
626: }
627:
628:
629: static void
1.37 kristaps 630: ps_closepage(struct termp *p)
631: {
632: int i;
1.38 kristaps 633: size_t len, base;
634:
635: /*
636: * Close out a page that we've already flushed to output. In
637: * PostScript, we simply note that the page must be showed. In
638: * PDF, we must now create the Length, Resource, and Page node
639: * for the page contents.
640: */
1.37 kristaps 641:
1.50 ! kristaps 642: assert(p->ps->psmarg && p->ps->psmarg[0]);
! 643: ps_printf(p, "%s", p->ps->psmarg);
1.37 kristaps 644:
1.38 kristaps 645: if (TERMTYPE_PS != p->type) {
1.37 kristaps 646: ps_printf(p, "ET\n");
1.38 kristaps 647:
1.50 ! kristaps 648: len = p->ps->pdfbytes - p->ps->pdflastpg;
! 649: base = p->ps->pages * 4 + p->ps->pdfbody;
1.38 kristaps 650:
651: ps_printf(p, "endstream\nendobj\n");
652:
653: /* Length of content. */
1.39 kristaps 654: pdf_obj(p, base + 1);
1.38 kristaps 655: ps_printf(p, "%zu\nendobj\n", len);
656:
657: /* Resource for content. */
1.39 kristaps 658: pdf_obj(p, base + 2);
1.38 kristaps 659: ps_printf(p, "<<\n/ProcSet [/PDF /Text]\n");
1.37 kristaps 660: ps_printf(p, "/Font <<\n");
1.39 kristaps 661: for (i = 0; i < (int)TERMFONT__MAX; i++)
1.37 kristaps 662: ps_printf(p, "/F%d %d 0 R\n", i, 3 + i);
1.38 kristaps 663: ps_printf(p, ">>\n>>\n");
664:
665: /* Page node. */
1.39 kristaps 666: pdf_obj(p, base + 3);
667: ps_printf(p, "<<\n");
1.37 kristaps 668: ps_printf(p, "/Type /Page\n");
669: ps_printf(p, "/Parent 2 0 R\n");
1.38 kristaps 670: ps_printf(p, "/Resources %zu 0 R\n", base + 2);
671: ps_printf(p, "/Contents %zu 0 R\n", base);
672: ps_printf(p, ">>\nendobj\n");
673: } else
674: ps_printf(p, "showpage\n");
1.37 kristaps 675:
1.50 ! kristaps 676: p->ps->pages++;
! 677: p->ps->psrow = p->ps->top;
! 678: assert( ! (PS_NEWPAGE & p->ps->flags));
! 679: p->ps->flags |= PS_NEWPAGE;
1.37 kristaps 680: }
681:
682:
1.3 kristaps 683: /* ARGSUSED */
1.2 kristaps 684: static void
685: ps_end(struct termp *p)
686: {
1.38 kristaps 687: size_t i, xref, base;
1.2 kristaps 688:
1.4 kristaps 689: /*
690: * At the end of the file, do one last showpage. This is the
691: * same behaviour as groff(1) and works for multiple pages as
692: * well as just one.
693: */
694:
1.50 ! kristaps 695: if ( ! (PS_NEWPAGE & p->ps->flags)) {
! 696: assert(0 == p->ps->flags);
! 697: assert('\0' == p->ps->last);
1.37 kristaps 698: ps_closepage(p);
1.30 kristaps 699: }
1.16 kristaps 700:
1.37 kristaps 701: if (TERMTYPE_PS == p->type) {
702: ps_printf(p, "%%%%Trailer\n");
1.50 ! kristaps 703: ps_printf(p, "%%%%Pages: %zu\n", p->ps->pages);
1.37 kristaps 704: ps_printf(p, "%%%%EOF\n");
705: return;
706: }
707:
1.39 kristaps 708: pdf_obj(p, 2);
709: ps_printf(p, "<<\n/Type /Pages\n");
1.37 kristaps 710: ps_printf(p, "/MediaBox [0 0 %zu %zu]\n",
1.50 ! kristaps 711: (size_t)AFM2PNT(p, p->ps->width),
! 712: (size_t)AFM2PNT(p, p->ps->height));
1.37 kristaps 713:
1.50 ! kristaps 714: ps_printf(p, "/Count %zu\n", p->ps->pages);
1.37 kristaps 715: ps_printf(p, "/Kids [");
716:
1.50 ! kristaps 717: for (i = 0; i < p->ps->pages; i++)
1.38 kristaps 718: ps_printf(p, " %zu 0 R", i * 4 +
1.50 ! kristaps 719: p->ps->pdfbody + 3);
1.38 kristaps 720:
1.50 ! kristaps 721: base = (p->ps->pages - 1) * 4 +
! 722: p->ps->pdfbody + 4;
1.38 kristaps 723:
724: ps_printf(p, "]\n>>\nendobj\n");
1.39 kristaps 725: pdf_obj(p, base);
1.37 kristaps 726: ps_printf(p, "<<\n");
727: ps_printf(p, "/Type /Catalog\n");
728: ps_printf(p, "/Pages 2 0 R\n");
729: ps_printf(p, ">>\n");
1.50 ! kristaps 730: xref = p->ps->pdfbytes;
1.37 kristaps 731: ps_printf(p, "xref\n");
1.38 kristaps 732: ps_printf(p, "0 %zu\n", base + 1);
1.39 kristaps 733: ps_printf(p, "0000000000 65535 f \n");
734:
735: for (i = 0; i < base; i++)
736: ps_printf(p, "%.10zu 00000 n \n",
1.50 ! kristaps 737: p->ps->pdfobjs[(int)i]);
1.39 kristaps 738:
1.37 kristaps 739: ps_printf(p, "trailer\n");
740: ps_printf(p, "<<\n");
1.38 kristaps 741: ps_printf(p, "/Size %zu\n", base + 1);
742: ps_printf(p, "/Root %zu 0 R\n", base);
1.37 kristaps 743: ps_printf(p, "/Info 1 0 R\n");
744: ps_printf(p, ">>\n");
745: ps_printf(p, "startxref\n");
746: ps_printf(p, "%zu\n", xref);
747: ps_printf(p, "%%%%EOF\n");
1.2 kristaps 748: }
749:
750:
751: static void
752: ps_begin(struct termp *p)
753: {
1.13 kristaps 754: time_t t;
1.16 kristaps 755: int i;
1.2 kristaps 756:
1.9 kristaps 757: /*
758: * Print margins into margin buffer. Nothing gets output to the
759: * screen yet, so we don't need to initialise the primary state.
1.2 kristaps 760: */
761:
1.50 ! kristaps 762: if (p->ps->psmarg) {
! 763: assert(p->ps->psmargsz);
! 764: p->ps->psmarg[0] = '\0';
1.4 kristaps 765: }
766:
1.50 ! kristaps 767: /*p->ps->pdfbytes = 0;*/
! 768: p->ps->psmargcur = 0;
! 769: p->ps->flags = PS_MARGINS;
! 770: p->ps->pscol = p->ps->left;
! 771: p->ps->psrow = p->ps->header;
1.4 kristaps 772:
1.9 kristaps 773: ps_setfont(p, TERMFONT_NONE);
1.4 kristaps 774:
775: (*p->headf)(p, p->argf);
776: (*p->endline)(p);
777:
1.50 ! kristaps 778: p->ps->pscol = p->ps->left;
! 779: p->ps->psrow = p->ps->footer;
1.4 kristaps 780:
781: (*p->footf)(p, p->argf);
782: (*p->endline)(p);
783:
1.50 ! kristaps 784: p->ps->flags &= ~PS_MARGINS;
1.9 kristaps 785:
1.50 ! kristaps 786: assert(0 == p->ps->flags);
! 787: assert(p->ps->psmarg);
! 788: assert('\0' != p->ps->psmarg[0]);
1.9 kristaps 789:
790: /*
791: * Print header and initialise page state. Following this,
792: * stuff gets printed to the screen, so make sure we're sane.
793: */
1.4 kristaps 794:
1.13 kristaps 795: t = time(NULL);
796:
1.37 kristaps 797: if (TERMTYPE_PS == p->type) {
798: ps_printf(p, "%%!PS-Adobe-3.0\n");
799: ps_printf(p, "%%%%CreationDate: %s", ctime(&t));
800: ps_printf(p, "%%%%DocumentData: Clean7Bit\n");
801: ps_printf(p, "%%%%Orientation: Portrait\n");
802: ps_printf(p, "%%%%Pages: (atend)\n");
803: ps_printf(p, "%%%%PageOrder: Ascend\n");
804: ps_printf(p, "%%%%DocumentMedia: "
805: "Default %zu %zu 0 () ()\n",
1.50 ! kristaps 806: (size_t)AFM2PNT(p, p->ps->width),
! 807: (size_t)AFM2PNT(p, p->ps->height));
1.37 kristaps 808: ps_printf(p, "%%%%DocumentNeededResources: font");
809:
810: for (i = 0; i < (int)TERMFONT__MAX; i++)
811: ps_printf(p, " %s", fonts[i].name);
812:
813: ps_printf(p, "\n%%%%EndComments\n");
814: } else {
815: ps_printf(p, "%%PDF-1.1\n");
1.39 kristaps 816: pdf_obj(p, 1);
1.37 kristaps 817: ps_printf(p, "<<\n");
818: ps_printf(p, ">>\n");
819: ps_printf(p, "endobj\n");
820:
821: for (i = 0; i < (int)TERMFONT__MAX; i++) {
1.39 kristaps 822: pdf_obj(p, (size_t)i + 3);
1.37 kristaps 823: ps_printf(p, "<<\n");
824: ps_printf(p, "/Type /Font\n");
825: ps_printf(p, "/Subtype /Type1\n");
826: ps_printf(p, "/Name /F%zu\n", i);
827: ps_printf(p, "/BaseFont /%s\n", fonts[i].name);
828: ps_printf(p, ">>\n");
829: }
830: }
1.16 kristaps 831:
1.50 ! kristaps 832: p->ps->pdfbody = (size_t)TERMFONT__MAX + 3;
! 833: p->ps->pscol = p->ps->left;
! 834: p->ps->psrow = p->ps->top;
! 835: p->ps->flags |= PS_NEWPAGE;
1.33 kristaps 836: ps_setfont(p, TERMFONT_NONE);
1.2 kristaps 837: }
838:
839:
840: static void
1.13 kristaps 841: ps_pletter(struct termp *p, int c)
1.2 kristaps 842: {
1.14 kristaps 843: int f;
1.32 kristaps 844:
1.9 kristaps 845: /*
1.32 kristaps 846: * If we haven't opened a page context, then output that we're
847: * in a new page and make sure the font is correctly set.
1.9 kristaps 848: */
849:
1.50 ! kristaps 850: if (PS_NEWPAGE & p->ps->flags) {
1.37 kristaps 851: if (TERMTYPE_PS == p->type) {
852: ps_printf(p, "%%%%Page: %zu %zu\n",
1.50 ! kristaps 853: p->ps->pages + 1,
! 854: p->ps->pages + 1);
1.37 kristaps 855: ps_printf(p, "/%s %zu selectfont\n",
1.50 ! kristaps 856: fonts[(int)p->ps->lastf].name,
! 857: p->ps->scale);
1.37 kristaps 858: } else {
1.50 ! kristaps 859: pdf_obj(p, p->ps->pdfbody +
! 860: p->ps->pages * 4);
1.37 kristaps 861: ps_printf(p, "<<\n");
862: ps_printf(p, "/Length %zu 0 R\n",
1.50 ! kristaps 863: p->ps->pdfbody + 1 +
! 864: p->ps->pages * 4);
1.37 kristaps 865: ps_printf(p, ">>\nstream\n");
866: }
1.50 ! kristaps 867: p->ps->pdflastpg = p->ps->pdfbytes;
! 868: p->ps->flags &= ~PS_NEWPAGE;
1.32 kristaps 869: }
870:
871: /*
872: * If we're not in a PostScript "word" context, then open one
873: * now at the current cursor.
874: */
1.30 kristaps 875:
1.50 ! kristaps 876: if ( ! (PS_INLINE & p->ps->flags)) {
1.37 kristaps 877: if (TERMTYPE_PS != p->type) {
878: ps_printf(p, "BT\n/F%d %zu Tf\n",
1.50 ! kristaps 879: (int)p->ps->lastf,
! 880: p->ps->scale);
1.37 kristaps 881: ps_printf(p, "%.3f %.3f Td\n(",
1.50 ! kristaps 882: AFM2PNT(p, p->ps->pscol),
! 883: AFM2PNT(p, p->ps->psrow));
1.37 kristaps 884: } else
885: ps_printf(p, "%.3f %.3f moveto\n(",
1.50 ! kristaps 886: AFM2PNT(p, p->ps->pscol),
! 887: AFM2PNT(p, p->ps->psrow));
! 888: p->ps->flags |= PS_INLINE;
1.2 kristaps 889: }
890:
1.50 ! kristaps 891: assert( ! (PS_NEWPAGE & p->ps->flags));
1.29 kristaps 892:
1.2 kristaps 893: /*
894: * We need to escape these characters as per the PostScript
895: * specification. We would also escape non-graphable characters
896: * (like tabs), but none of them would get to this point and
897: * it's superfluous to abort() on them.
898: */
899:
900: switch (c) {
901: case ('('):
902: /* FALLTHROUGH */
903: case (')'):
904: /* FALLTHROUGH */
905: case ('\\'):
1.4 kristaps 906: ps_putchar(p, '\\');
1.2 kristaps 907: break;
908: default:
909: break;
910: }
911:
912: /* Write the character and adjust where we are on the page. */
1.9 kristaps 913:
1.50 ! kristaps 914: f = (int)p->ps->lastf;
1.13 kristaps 915:
1.45 schwarze 916: if (c <= 32 || (c - 32 >= MAXCHAR)) {
1.13 kristaps 917: ps_putchar(p, ' ');
1.50 ! kristaps 918: p->ps->pscol += (size_t)fonts[f].gly[0].wx;
1.13 kristaps 919: return;
920: }
921:
1.25 kristaps 922: ps_putchar(p, (char)c);
1.14 kristaps 923: c -= 32;
1.50 ! kristaps 924: p->ps->pscol += (size_t)fonts[f].gly[c].wx;
1.2 kristaps 925: }
926:
927:
928: static void
1.9 kristaps 929: ps_pclose(struct termp *p)
930: {
931:
932: /*
933: * Spit out that we're exiting a word context (this is a
934: * "partial close" because we don't check the last-char buffer
935: * or anything).
936: */
937:
1.50 ! kristaps 938: if ( ! (PS_INLINE & p->ps->flags))
1.9 kristaps 939: return;
940:
1.37 kristaps 941: if (TERMTYPE_PS != p->type) {
942: ps_printf(p, ") Tj\nET\n");
943: } else
944: ps_printf(p, ") show\n");
945:
1.50 ! kristaps 946: p->ps->flags &= ~PS_INLINE;
1.9 kristaps 947: }
948:
949:
950: static void
951: ps_fclose(struct termp *p)
952: {
953:
954: /*
955: * Strong closure: if we have a last-char, spit it out after
956: * checking that we're in the right font mode. This will of
957: * course open a new scope, if applicable.
958: *
959: * Following this, close out any scope that's open.
960: */
961:
1.50 ! kristaps 962: if ('\0' != p->ps->last) {
! 963: if (p->ps->lastf != TERMFONT_NONE) {
1.9 kristaps 964: ps_pclose(p);
965: ps_setfont(p, TERMFONT_NONE);
966: }
1.50 ! kristaps 967: ps_pletter(p, p->ps->last);
! 968: p->ps->last = '\0';
1.9 kristaps 969: }
970:
1.50 ! kristaps 971: if ( ! (PS_INLINE & p->ps->flags))
1.9 kristaps 972: return;
973:
974: ps_pclose(p);
975: }
976:
977:
978: static void
1.49 kristaps 979: ps_letter(struct termp *p, int arg)
1.8 kristaps 980: {
1.49 kristaps 981: char cc, c;
982:
983: /* LINTED */
984: c = arg >= 128 || arg <= 0 ? '?' : arg;
1.9 kristaps 985:
986: /*
987: * State machine dictates whether to buffer the last character
988: * or not. Basically, encoded words are detected by checking if
989: * we're an "8" and switching on the buffer. Then we put "8" in
990: * our buffer, and on the next charater, flush both character
991: * and buffer. Thus, "regular" words are detected by having a
992: * regular character and a regular buffer character.
993: */
994:
1.50 ! kristaps 995: if ('\0' == p->ps->last) {
1.8 kristaps 996: assert(8 != c);
1.50 ! kristaps 997: p->ps->last = c;
1.8 kristaps 998: return;
1.50 ! kristaps 999: } else if (8 == p->ps->last) {
1.8 kristaps 1000: assert(8 != c);
1.50 ! kristaps 1001: p->ps->last = '\0';
1.8 kristaps 1002: } else if (8 == c) {
1.50 ! kristaps 1003: assert(8 != p->ps->last);
! 1004: if ('_' == p->ps->last) {
! 1005: if (p->ps->lastf != TERMFONT_UNDER) {
1.9 kristaps 1006: ps_pclose(p);
1007: ps_setfont(p, TERMFONT_UNDER);
1008: }
1.50 ! kristaps 1009: } else if (p->ps->lastf != TERMFONT_BOLD) {
1.9 kristaps 1010: ps_pclose(p);
1011: ps_setfont(p, TERMFONT_BOLD);
1012: }
1.50 ! kristaps 1013: p->ps->last = c;
1.8 kristaps 1014: return;
1015: } else {
1.50 ! kristaps 1016: if (p->ps->lastf != TERMFONT_NONE) {
1.9 kristaps 1017: ps_pclose(p);
1018: ps_setfont(p, TERMFONT_NONE);
1019: }
1.50 ! kristaps 1020: cc = p->ps->last;
! 1021: p->ps->last = c;
1.8 kristaps 1022: c = cc;
1023: }
1024:
1.9 kristaps 1025: ps_pletter(p, c);
1.8 kristaps 1026: }
1027:
1028:
1029: static void
1.2 kristaps 1030: ps_advance(struct termp *p, size_t len)
1031: {
1032:
1.9 kristaps 1033: /*
1034: * Advance some spaces. This can probably be made smarter,
1035: * i.e., to have multiple space-separated words in the same
1036: * scope, but this is easier: just close out the current scope
1037: * and readjust our column settings.
1038: */
1.8 kristaps 1039:
1.9 kristaps 1040: ps_fclose(p);
1.50 ! kristaps 1041: p->ps->pscol += len;
1.2 kristaps 1042: }
1043:
1044:
1045: static void
1046: ps_endline(struct termp *p)
1047: {
1.8 kristaps 1048:
1.9 kristaps 1049: /* Close out any scopes we have open: we're at eoln. */
1050:
1051: ps_fclose(p);
1.2 kristaps 1052:
1.9 kristaps 1053: /*
1054: * If we're in the margin, don't try to recalculate our current
1055: * row. XXX: if the column tries to be fancy with multiple
1056: * lines, we'll do nasty stuff.
1057: */
1.2 kristaps 1058:
1.50 ! kristaps 1059: if (PS_MARGINS & p->ps->flags)
1.29 kristaps 1060: return;
1061:
1062: /* Left-justify. */
1063:
1.50 ! kristaps 1064: p->ps->pscol = p->ps->left;
1.29 kristaps 1065:
1066: /* If we haven't printed anything, return. */
1067:
1.50 ! kristaps 1068: if (PS_NEWPAGE & p->ps->flags)
1.2 kristaps 1069: return;
1070:
1.9 kristaps 1071: /*
1072: * Put us down a line. If we're at the page bottom, spit out a
1073: * showpage and restart our row.
1074: */
1075:
1.50 ! kristaps 1076: if (p->ps->psrow >= p->ps->lineheight +
! 1077: p->ps->bottom) {
! 1078: p->ps->psrow -= p->ps->lineheight;
1.2 kristaps 1079: return;
1080: }
1081:
1.37 kristaps 1082: ps_closepage(p);
1.1 kristaps 1083: }
1.9 kristaps 1084:
1085:
1086: static void
1087: ps_setfont(struct termp *p, enum termfont f)
1088: {
1089:
1.16 kristaps 1090: assert(f < TERMFONT__MAX);
1.50 ! kristaps 1091: p->ps->lastf = f;
1.32 kristaps 1092:
1093: /*
1094: * If we're still at the top of the page, let the font-setting
1095: * be delayed until we actually have stuff to print.
1096: */
1097:
1.50 ! kristaps 1098: if (PS_NEWPAGE & p->ps->flags)
1.32 kristaps 1099: return;
1100:
1.37 kristaps 1101: if (TERMTYPE_PS == p->type)
1102: ps_printf(p, "/%s %zu selectfont\n",
1103: fonts[(int)f].name,
1.50 ! kristaps 1104: p->ps->scale);
1.37 kristaps 1105: else
1106: ps_printf(p, "/F%d %zu Tf\n",
1107: (int)f,
1.50 ! kristaps 1108: p->ps->scale);
1.9 kristaps 1109: }
1110:
1.11 kristaps 1111:
1.12 kristaps 1112: /* ARGSUSED */
1.11 kristaps 1113: static size_t
1.49 kristaps 1114: ps_width(const struct termp *p, int c)
1.11 kristaps 1115: {
1116:
1.14 kristaps 1117: if (c <= 32 || c - 32 >= MAXCHAR)
1.36 kristaps 1118: return((size_t)fonts[(int)TERMFONT_NONE].gly[0].wx);
1.14 kristaps 1119:
1120: c -= 32;
1.49 kristaps 1121: return((size_t)fonts[(int)TERMFONT_NONE].gly[c].wx);
1.11 kristaps 1122: }
1.19 kristaps 1123:
1124:
1.20 kristaps 1125: static double
1.19 kristaps 1126: ps_hspan(const struct termp *p, const struct roffsu *su)
1127: {
1128: double r;
1129:
1130: /*
1131: * All of these measurements are derived by converting from the
1.21 kristaps 1132: * native measurement to AFM units.
1.19 kristaps 1133: */
1134:
1135: switch (su->unit) {
1136: case (SCALE_CM):
1.21 kristaps 1137: r = PNT2AFM(p, su->scale * 28.34);
1.19 kristaps 1138: break;
1139: case (SCALE_IN):
1.21 kristaps 1140: r = PNT2AFM(p, su->scale * 72);
1.19 kristaps 1141: break;
1142: case (SCALE_PC):
1.21 kristaps 1143: r = PNT2AFM(p, su->scale * 12);
1.19 kristaps 1144: break;
1145: case (SCALE_PT):
1.21 kristaps 1146: r = PNT2AFM(p, su->scale * 100);
1.19 kristaps 1147: break;
1148: case (SCALE_EM):
1.36 kristaps 1149: r = su->scale *
1.19 kristaps 1150: fonts[(int)TERMFONT_NONE].gly[109 - 32].wx;
1151: break;
1152: case (SCALE_MM):
1.21 kristaps 1153: r = PNT2AFM(p, su->scale * 2.834);
1.19 kristaps 1154: break;
1155: case (SCALE_EN):
1.36 kristaps 1156: r = su->scale *
1.19 kristaps 1157: fonts[(int)TERMFONT_NONE].gly[110 - 32].wx;
1158: break;
1159: case (SCALE_VS):
1.50 ! kristaps 1160: r = su->scale * p->ps->lineheight;
1.19 kristaps 1161: break;
1162: default:
1163: r = su->scale;
1164: break;
1165: }
1166:
1.20 kristaps 1167: return(r);
1.50 ! kristaps 1168: }
! 1169:
! 1170: static void
! 1171: ps_growbuf(struct termp *p, size_t sz)
! 1172: {
! 1173: if (p->ps->psmargcur + sz <= p->ps->psmargsz)
! 1174: return;
! 1175:
! 1176: if (sz < PS_BUFSLOP)
! 1177: sz = PS_BUFSLOP;
! 1178:
! 1179: p->ps->psmargsz += sz;
! 1180:
! 1181: p->ps->psmarg = mandoc_realloc
! 1182: (p->ps->psmarg, p->ps->psmargsz);
1.19 kristaps 1183: }
1184:
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