Annotation of mandoc/term_ps.c, Revision 1.65
1.65 ! schwarze 1: /* $Id: term_ps.c,v 1.64 2014/08/13 20:34:29 kristaps 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>
1.13 kristaps 28: #include <time.h>
1.26 kristaps 29: #include <unistd.h>
1.1 kristaps 30:
1.42 schwarze 31: #include "mandoc.h"
1.56 schwarze 32: #include "mandoc_aux.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. */
1.59 schwarze 41: #define PNT2AFM(p, x) \
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 */
1.59 schwarze 45: #define AFM2PNT(p, x) \
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 */
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: {
1.13 kristaps 855: time_t t;
1.16 kristaps 856: int i;
1.2 kristaps 857:
1.59 schwarze 858: /*
1.9 kristaps 859: * Print margins into margin buffer. Nothing gets output to the
860: * screen yet, so we don't need to initialise the primary state.
1.2 kristaps 861: */
862:
1.50 kristaps 863: if (p->ps->psmarg) {
864: assert(p->ps->psmargsz);
865: p->ps->psmarg[0] = '\0';
1.4 kristaps 866: }
867:
1.50 kristaps 868: /*p->ps->pdfbytes = 0;*/
869: p->ps->psmargcur = 0;
870: p->ps->flags = PS_MARGINS;
871: p->ps->pscol = p->ps->left;
872: p->ps->psrow = p->ps->header;
1.4 kristaps 873:
1.9 kristaps 874: ps_setfont(p, TERMFONT_NONE);
1.4 kristaps 875:
876: (*p->headf)(p, p->argf);
877: (*p->endline)(p);
878:
1.50 kristaps 879: p->ps->pscol = p->ps->left;
880: p->ps->psrow = p->ps->footer;
1.4 kristaps 881:
882: (*p->footf)(p, p->argf);
883: (*p->endline)(p);
884:
1.50 kristaps 885: p->ps->flags &= ~PS_MARGINS;
1.9 kristaps 886:
1.50 kristaps 887: assert(0 == p->ps->flags);
888: assert(p->ps->psmarg);
889: assert('\0' != p->ps->psmarg[0]);
1.9 kristaps 890:
1.59 schwarze 891: /*
1.9 kristaps 892: * Print header and initialise page state. Following this,
893: * stuff gets printed to the screen, so make sure we're sane.
894: */
1.4 kristaps 895:
1.13 kristaps 896: t = time(NULL);
897:
1.37 kristaps 898: if (TERMTYPE_PS == p->type) {
899: ps_printf(p, "%%!PS-Adobe-3.0\n");
900: ps_printf(p, "%%%%CreationDate: %s", ctime(&t));
901: ps_printf(p, "%%%%DocumentData: Clean7Bit\n");
902: ps_printf(p, "%%%%Orientation: Portrait\n");
903: ps_printf(p, "%%%%Pages: (atend)\n");
904: ps_printf(p, "%%%%PageOrder: Ascend\n");
905: ps_printf(p, "%%%%DocumentMedia: "
1.59 schwarze 906: "Default %zu %zu 0 () ()\n",
907: (size_t)AFM2PNT(p, p->ps->width),
908: (size_t)AFM2PNT(p, p->ps->height));
1.37 kristaps 909: ps_printf(p, "%%%%DocumentNeededResources: font");
910:
911: for (i = 0; i < (int)TERMFONT__MAX; i++)
912: ps_printf(p, " %s", fonts[i].name);
913:
914: ps_printf(p, "\n%%%%EndComments\n");
915: } else {
916: ps_printf(p, "%%PDF-1.1\n");
1.39 kristaps 917: pdf_obj(p, 1);
1.37 kristaps 918: ps_printf(p, "<<\n");
919: ps_printf(p, ">>\n");
920: ps_printf(p, "endobj\n");
921:
922: for (i = 0; i < (int)TERMFONT__MAX; i++) {
1.39 kristaps 923: pdf_obj(p, (size_t)i + 3);
1.37 kristaps 924: ps_printf(p, "<<\n");
925: ps_printf(p, "/Type /Font\n");
926: ps_printf(p, "/Subtype /Type1\n");
1.55 joerg 927: ps_printf(p, "/Name /F%d\n", i);
1.37 kristaps 928: ps_printf(p, "/BaseFont /%s\n", fonts[i].name);
929: ps_printf(p, ">>\n");
930: }
931: }
1.16 kristaps 932:
1.50 kristaps 933: p->ps->pdfbody = (size_t)TERMFONT__MAX + 3;
934: p->ps->pscol = p->ps->left;
935: p->ps->psrow = p->ps->top;
936: p->ps->flags |= PS_NEWPAGE;
1.33 kristaps 937: ps_setfont(p, TERMFONT_NONE);
1.2 kristaps 938: }
939:
940: static void
1.13 kristaps 941: ps_pletter(struct termp *p, int c)
1.2 kristaps 942: {
1.14 kristaps 943: int f;
1.32 kristaps 944:
1.9 kristaps 945: /*
1.32 kristaps 946: * If we haven't opened a page context, then output that we're
947: * in a new page and make sure the font is correctly set.
1.9 kristaps 948: */
949:
1.50 kristaps 950: if (PS_NEWPAGE & p->ps->flags) {
1.37 kristaps 951: if (TERMTYPE_PS == p->type) {
1.59 schwarze 952: ps_printf(p, "%%%%Page: %zu %zu\n",
953: p->ps->pages + 1, p->ps->pages + 1);
954: ps_printf(p, "/%s %zu selectfont\n",
955: fonts[(int)p->ps->lastf].name,
956: p->ps->scale);
1.37 kristaps 957: } else {
1.59 schwarze 958: pdf_obj(p, p->ps->pdfbody +
959: p->ps->pages * 4);
1.37 kristaps 960: ps_printf(p, "<<\n");
1.59 schwarze 961: ps_printf(p, "/Length %zu 0 R\n",
962: p->ps->pdfbody + 1 + p->ps->pages * 4);
1.37 kristaps 963: ps_printf(p, ">>\nstream\n");
964: }
1.50 kristaps 965: p->ps->pdflastpg = p->ps->pdfbytes;
966: p->ps->flags &= ~PS_NEWPAGE;
1.32 kristaps 967: }
1.59 schwarze 968:
1.32 kristaps 969: /*
970: * If we're not in a PostScript "word" context, then open one
971: * now at the current cursor.
972: */
1.30 kristaps 973:
1.50 kristaps 974: if ( ! (PS_INLINE & p->ps->flags)) {
1.37 kristaps 975: if (TERMTYPE_PS != p->type) {
1.59 schwarze 976: ps_printf(p, "BT\n/F%d %zu Tf\n",
977: (int)p->ps->lastf, p->ps->scale);
1.37 kristaps 978: ps_printf(p, "%.3f %.3f Td\n(",
1.59 schwarze 979: AFM2PNT(p, p->ps->pscol),
980: AFM2PNT(p, p->ps->psrow));
1.37 kristaps 981: } else
1.59 schwarze 982: ps_printf(p, "%.3f %.3f moveto\n(",
983: AFM2PNT(p, p->ps->pscol),
984: AFM2PNT(p, p->ps->psrow));
1.50 kristaps 985: p->ps->flags |= PS_INLINE;
1.2 kristaps 986: }
987:
1.50 kristaps 988: assert( ! (PS_NEWPAGE & p->ps->flags));
1.29 kristaps 989:
1.2 kristaps 990: /*
991: * We need to escape these characters as per the PostScript
992: * specification. We would also escape non-graphable characters
993: * (like tabs), but none of them would get to this point and
994: * it's superfluous to abort() on them.
995: */
996:
997: switch (c) {
1.59 schwarze 998: case '(':
1.2 kristaps 999: /* FALLTHROUGH */
1.59 schwarze 1000: case ')':
1.2 kristaps 1001: /* FALLTHROUGH */
1.59 schwarze 1002: case '\\':
1.4 kristaps 1003: ps_putchar(p, '\\');
1.2 kristaps 1004: break;
1005: default:
1006: break;
1007: }
1008:
1009: /* Write the character and adjust where we are on the page. */
1.9 kristaps 1010:
1.50 kristaps 1011: f = (int)p->ps->lastf;
1.13 kristaps 1012:
1.61 schwarze 1013: if (c <= 32 || c - 32 >= MAXCHAR)
1014: c = 32;
1.13 kristaps 1015:
1.25 kristaps 1016: ps_putchar(p, (char)c);
1.14 kristaps 1017: c -= 32;
1.50 kristaps 1018: p->ps->pscol += (size_t)fonts[f].gly[c].wx;
1.2 kristaps 1019: }
1020:
1021: static void
1.9 kristaps 1022: ps_pclose(struct termp *p)
1023: {
1024:
1.59 schwarze 1025: /*
1.9 kristaps 1026: * Spit out that we're exiting a word context (this is a
1027: * "partial close" because we don't check the last-char buffer
1028: * or anything).
1029: */
1030:
1.50 kristaps 1031: if ( ! (PS_INLINE & p->ps->flags))
1.9 kristaps 1032: return;
1.59 schwarze 1033:
1.37 kristaps 1034: if (TERMTYPE_PS != p->type) {
1035: ps_printf(p, ") Tj\nET\n");
1036: } else
1037: ps_printf(p, ") show\n");
1038:
1.50 kristaps 1039: p->ps->flags &= ~PS_INLINE;
1.9 kristaps 1040: }
1041:
1042: static void
1043: ps_fclose(struct termp *p)
1044: {
1045:
1046: /*
1047: * Strong closure: if we have a last-char, spit it out after
1048: * checking that we're in the right font mode. This will of
1049: * course open a new scope, if applicable.
1050: *
1051: * Following this, close out any scope that's open.
1052: */
1053:
1.65 ! schwarze 1054: if (p->ps->last != '\0') {
! 1055: assert(p->ps->last != 8);
! 1056: if (p->ps->nextf != p->ps->lastf) {
1.9 kristaps 1057: ps_pclose(p);
1.65 ! schwarze 1058: ps_setfont(p, p->ps->nextf);
1.9 kristaps 1059: }
1.65 ! schwarze 1060: p->ps->nextf = TERMFONT_NONE;
1.50 kristaps 1061: ps_pletter(p, p->ps->last);
1062: p->ps->last = '\0';
1.9 kristaps 1063: }
1064:
1.50 kristaps 1065: if ( ! (PS_INLINE & p->ps->flags))
1.9 kristaps 1066: return;
1067:
1068: ps_pclose(p);
1069: }
1070:
1071: static void
1.49 kristaps 1072: ps_letter(struct termp *p, int arg)
1.8 kristaps 1073: {
1.65 ! schwarze 1074: char c;
1.49 kristaps 1075:
1076: c = arg >= 128 || arg <= 0 ? '?' : arg;
1.9 kristaps 1077:
1078: /*
1.65 ! schwarze 1079: * When receiving an initial character, merely buffer it,
! 1080: * because a backspace might follow to specify formatting.
! 1081: * When receiving a backspace, use the buffered character
! 1082: * to build the font instruction and clear the buffer.
! 1083: * Only when there are two non-backspace characters in a row,
! 1084: * activate the font built so far and print the first of them;
! 1085: * the second, again, merely gets buffered.
! 1086: * The final character will get printed from ps_fclose().
1.9 kristaps 1087: */
1088:
1.65 ! schwarze 1089: if (c == 8) {
! 1090: assert(p->ps->last != '\0');
! 1091: assert(p->ps->last != 8);
1.50 kristaps 1092: if ('_' == p->ps->last) {
1.65 ! schwarze 1093: switch (p->ps->nextf) {
! 1094: case TERMFONT_BI:
! 1095: break;
! 1096: case TERMFONT_BOLD:
! 1097: p->ps->nextf = TERMFONT_BI;
! 1098: break;
! 1099: default:
! 1100: p->ps->nextf = TERMFONT_UNDER;
! 1101: }
! 1102: } else {
! 1103: switch (p->ps->nextf) {
! 1104: case TERMFONT_BI:
! 1105: break;
! 1106: case TERMFONT_UNDER:
! 1107: p->ps->nextf = TERMFONT_BI;
! 1108: break;
! 1109: default:
! 1110: p->ps->nextf = TERMFONT_BOLD;
1.9 kristaps 1111: }
1112: }
1.65 ! schwarze 1113: } else if (p->ps->last != '\0' && p->ps->last != 8) {
! 1114: if (p->ps->nextf != p->ps->lastf) {
1.9 kristaps 1115: ps_pclose(p);
1.65 ! schwarze 1116: ps_setfont(p, p->ps->nextf);
1.9 kristaps 1117: }
1.65 ! schwarze 1118: p->ps->nextf = TERMFONT_NONE;
! 1119: ps_pletter(p, p->ps->last);
1.8 kristaps 1120: }
1.65 ! schwarze 1121: p->ps->last = c;
1.8 kristaps 1122: }
1123:
1124: static void
1.2 kristaps 1125: ps_advance(struct termp *p, size_t len)
1126: {
1127:
1.9 kristaps 1128: /*
1129: * Advance some spaces. This can probably be made smarter,
1130: * i.e., to have multiple space-separated words in the same
1131: * scope, but this is easier: just close out the current scope
1132: * and readjust our column settings.
1133: */
1.8 kristaps 1134:
1.9 kristaps 1135: ps_fclose(p);
1.50 kristaps 1136: p->ps->pscol += len;
1.2 kristaps 1137: }
1138:
1139: static void
1140: ps_endline(struct termp *p)
1141: {
1.8 kristaps 1142:
1.9 kristaps 1143: /* Close out any scopes we have open: we're at eoln. */
1144:
1145: ps_fclose(p);
1.2 kristaps 1146:
1.9 kristaps 1147: /*
1148: * If we're in the margin, don't try to recalculate our current
1149: * row. XXX: if the column tries to be fancy with multiple
1.59 schwarze 1150: * lines, we'll do nasty stuff.
1.9 kristaps 1151: */
1.2 kristaps 1152:
1.50 kristaps 1153: if (PS_MARGINS & p->ps->flags)
1.29 kristaps 1154: return;
1155:
1156: /* Left-justify. */
1157:
1.50 kristaps 1158: p->ps->pscol = p->ps->left;
1.29 kristaps 1159:
1160: /* If we haven't printed anything, return. */
1161:
1.50 kristaps 1162: if (PS_NEWPAGE & p->ps->flags)
1.2 kristaps 1163: return;
1164:
1.9 kristaps 1165: /*
1166: * Put us down a line. If we're at the page bottom, spit out a
1167: * showpage and restart our row.
1168: */
1169:
1.59 schwarze 1170: if (p->ps->psrow >= p->ps->lineheight + p->ps->bottom) {
1.50 kristaps 1171: p->ps->psrow -= p->ps->lineheight;
1.2 kristaps 1172: return;
1173: }
1174:
1.37 kristaps 1175: ps_closepage(p);
1.1 kristaps 1176: }
1.9 kristaps 1177:
1178: static void
1179: ps_setfont(struct termp *p, enum termfont f)
1180: {
1181:
1.16 kristaps 1182: assert(f < TERMFONT__MAX);
1.50 kristaps 1183: p->ps->lastf = f;
1.59 schwarze 1184:
1.32 kristaps 1185: /*
1186: * If we're still at the top of the page, let the font-setting
1187: * be delayed until we actually have stuff to print.
1188: */
1189:
1.50 kristaps 1190: if (PS_NEWPAGE & p->ps->flags)
1.32 kristaps 1191: return;
1192:
1.37 kristaps 1193: if (TERMTYPE_PS == p->type)
1.59 schwarze 1194: ps_printf(p, "/%s %zu selectfont\n",
1195: fonts[(int)f].name, p->ps->scale);
1.37 kristaps 1196: else
1.59 schwarze 1197: ps_printf(p, "/F%d %zu Tf\n",
1198: (int)f, p->ps->scale);
1.9 kristaps 1199: }
1200:
1.11 kristaps 1201: static size_t
1.49 kristaps 1202: ps_width(const struct termp *p, int c)
1.11 kristaps 1203: {
1204:
1.14 kristaps 1205: if (c <= 32 || c - 32 >= MAXCHAR)
1.61 schwarze 1206: c = 0;
1207: else
1208: c -= 32;
1.14 kristaps 1209:
1.49 kristaps 1210: return((size_t)fonts[(int)TERMFONT_NONE].gly[c].wx);
1.11 kristaps 1211: }
1.19 kristaps 1212:
1.20 kristaps 1213: static double
1.19 kristaps 1214: ps_hspan(const struct termp *p, const struct roffsu *su)
1215: {
1216: double r;
1.59 schwarze 1217:
1.19 kristaps 1218: /*
1219: * All of these measurements are derived by converting from the
1.21 kristaps 1220: * native measurement to AFM units.
1.19 kristaps 1221: */
1222: switch (su->unit) {
1.64 kristaps 1223: case SCALE_BU:
1224: /*
1225: * Traditionally, the default unit is fixed to the
1226: * output media. So this would refer to the point. In
1227: * mandoc(1), however, we stick to the default terminal
1228: * scaling unit so that output is the same regardless
1229: * the media.
1230: */
1231: r = PNT2AFM(p, su->scale * 72.0 / 240.0);
1232: break;
1.59 schwarze 1233: case SCALE_CM:
1.64 kristaps 1234: r = PNT2AFM(p, su->scale * 72.0 / 2.54);
1235: break;
1236: case SCALE_EM:
1237: r = su->scale *
1238: fonts[(int)TERMFONT_NONE].gly[109 - 32].wx;
1239: break;
1240: case SCALE_EN:
1241: r = su->scale *
1242: fonts[(int)TERMFONT_NONE].gly[110 - 32].wx;
1.19 kristaps 1243: break;
1.59 schwarze 1244: case SCALE_IN:
1.62 schwarze 1245: r = PNT2AFM(p, su->scale * 72.0);
1.19 kristaps 1246: break;
1.64 kristaps 1247: case SCALE_MM:
1248: r = su->scale *
1249: fonts[(int)TERMFONT_NONE].gly[109 - 32].wx / 100.0;
1250: break;
1.59 schwarze 1251: case SCALE_PC:
1.62 schwarze 1252: r = PNT2AFM(p, su->scale * 12.0);
1.19 kristaps 1253: break;
1.59 schwarze 1254: case SCALE_PT:
1.64 kristaps 1255: r = PNT2AFM(p, su->scale * 1.0);
1.19 kristaps 1256: break;
1.59 schwarze 1257: case SCALE_VS:
1.50 kristaps 1258: r = su->scale * p->ps->lineheight;
1.19 kristaps 1259: break;
1260: default:
1261: r = su->scale;
1262: break;
1263: }
1264:
1.20 kristaps 1265: return(r);
1.50 kristaps 1266: }
1267:
1268: static void
1269: ps_growbuf(struct termp *p, size_t sz)
1270: {
1271: if (p->ps->psmargcur + sz <= p->ps->psmargsz)
1272: return;
1273:
1274: if (sz < PS_BUFSLOP)
1275: sz = PS_BUFSLOP;
1276:
1277: p->ps->psmargsz += sz;
1.60 schwarze 1278: p->ps->psmarg = mandoc_realloc(p->ps->psmarg, p->ps->psmargsz);
1.19 kristaps 1279: }
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