Annotation of src/usr.bin/mandoc/term.c, Revision 1.45
1.45 ! schwarze 1: /* $Id: term.c,v 1.44 2010/07/13 01:09:13 schwarze Exp $ */
1.1 kristaps 2: /*
1.44 schwarze 3: * Copyright (c) 2008, 2009, 2010 Kristaps Dzonsons <kristaps@bsd.lv>
4: * Copyright (c) 2010 Ingo Schwarze <schwarze@openbsd.org>
1.1 kristaps 5: *
6: * Permission to use, copy, modify, and distribute this software for any
1.2 schwarze 7: * purpose with or without fee is hereby granted, provided that the above
8: * copyright notice and this permission notice appear in all copies.
1.1 kristaps 9: *
1.2 schwarze 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.
1.1 kristaps 17: */
1.20 schwarze 18: #include <sys/types.h>
19:
1.1 kristaps 20: #include <assert.h>
1.20 schwarze 21: #include <ctype.h>
1.36 schwarze 22: #include <stdint.h>
1.1 kristaps 23: #include <stdio.h>
24: #include <stdlib.h>
25: #include <string.h>
26:
1.34 schwarze 27: #include "mandoc.h"
1.15 schwarze 28: #include "chars.h"
1.16 schwarze 29: #include "out.h"
1.1 kristaps 30: #include "term.h"
1.16 schwarze 31: #include "main.h"
1.1 kristaps 32:
1.45 ! schwarze 33: static void spec(struct termp *, enum roffdeco,
! 34: const char *, size_t);
1.20 schwarze 35: static void res(struct termp *, const char *, size_t);
36: static void buffera(struct termp *, const char *, size_t);
37: static void bufferc(struct termp *, char);
38: static void adjbuf(struct termp *p, size_t);
39: static void encode(struct termp *, const char *, size_t);
1.1 kristaps 40:
41:
1.37 schwarze 42: void
43: term_free(struct termp *p)
1.1 kristaps 44: {
45:
1.37 schwarze 46: if (p->buf)
47: free(p->buf);
48: if (p->symtab)
49: chars_free(p->symtab);
50:
51: free(p);
1.1 kristaps 52: }
53:
54:
1.13 schwarze 55: void
1.37 schwarze 56: term_begin(struct termp *p, term_margin head,
57: term_margin foot, const void *arg)
1.1 kristaps 58: {
59:
1.37 schwarze 60: p->headf = head;
61: p->footf = foot;
62: p->argf = arg;
63: (*p->begin)(p);
1.1 kristaps 64: }
65:
66:
1.37 schwarze 67: void
68: term_end(struct termp *p)
1.1 kristaps 69: {
70:
1.37 schwarze 71: (*p->end)(p);
1.1 kristaps 72: }
73:
74:
1.37 schwarze 75: struct termp *
76: term_alloc(enum termenc enc)
1.1 kristaps 77: {
1.36 schwarze 78: struct termp *p;
1.1 kristaps 79:
1.19 schwarze 80: p = calloc(1, sizeof(struct termp));
81: if (NULL == p) {
82: perror(NULL);
83: exit(EXIT_FAILURE);
84: }
1.36 schwarze 85:
1.1 kristaps 86: p->enc = enc;
87: return(p);
88: }
89:
90:
91: /*
92: * Flush a line of text. A "line" is loosely defined as being something
93: * that should be followed by a newline, regardless of whether it's
94: * broken apart by newlines getting there. A line can also be a
1.27 schwarze 95: * fragment of a columnar list (`Bl -tag' or `Bl -column'), which does
96: * not have a trailing newline.
1.1 kristaps 97: *
1.27 schwarze 98: * The following flags may be specified:
1.1 kristaps 99: *
100: * - TERMP_NOLPAD: when beginning to write the line, don't left-pad the
101: * offset value. This is useful when doing columnar lists where the
102: * prior column has right-padded.
103: *
104: * - TERMP_NOBREAK: this is the most important and is used when making
105: * columns. In short: don't print a newline and instead pad to the
106: * right margin. Used in conjunction with TERMP_NOLPAD.
107: *
1.9 schwarze 108: * - TERMP_TWOSPACE: when padding, make sure there are at least two
109: * space characters of padding. Otherwise, rather break the line.
110: *
1.6 schwarze 111: * - TERMP_DANGLE: don't newline when TERMP_NOBREAK is specified and
112: * the line is overrun, and don't pad-right if it's underrun.
113: *
114: * - TERMP_HANG: like TERMP_DANGLE, but doesn't newline when
115: * overruning, instead save the position and continue at that point
116: * when the next invocation.
1.1 kristaps 117: *
118: * In-line line breaking:
119: *
120: * If TERMP_NOBREAK is specified and the line overruns the right
121: * margin, it will break and pad-right to the right margin after
122: * writing. If maxrmargin is violated, it will break and continue
1.19 schwarze 123: * writing from the right-margin, which will lead to the above scenario
124: * upon exit. Otherwise, the line will break at the right margin.
1.1 kristaps 125: */
126: void
127: term_flushln(struct termp *p)
128: {
1.19 schwarze 129: int i; /* current input position in p->buf */
130: size_t vis; /* current visual position on output */
131: size_t vbl; /* number of blanks to prepend to output */
1.33 schwarze 132: size_t vend; /* end of word visual position on output */
1.19 schwarze 133: size_t bp; /* visual right border position */
1.42 schwarze 134: int j; /* temporary loop index for p->buf */
135: int jhy; /* last hyph before overflow w/r/t j */
136: size_t maxvis; /* output position of visible boundary */
137: size_t mmax; /* used in calculating bp */
1.1 kristaps 138:
139: /*
140: * First, establish the maximum columns of "visible" content.
141: * This is usually the difference between the right-margin and
142: * an indentation, but can be, for tagged lists or columns, a
1.19 schwarze 143: * small set of values.
1.1 kristaps 144: */
145:
146: assert(p->offset < p->rmargin);
1.9 schwarze 147:
1.26 schwarze 148: maxvis = (int)(p->rmargin - p->offset) - p->overstep < 0 ?
1.19 schwarze 149: /* LINTED */
1.26 schwarze 150: 0 : p->rmargin - p->offset - p->overstep;
151: mmax = (int)(p->maxrmargin - p->offset) - p->overstep < 0 ?
1.19 schwarze 152: /* LINTED */
1.26 schwarze 153: 0 : p->maxrmargin - p->offset - p->overstep;
1.9 schwarze 154:
1.1 kristaps 155: bp = TERMP_NOBREAK & p->flags ? mmax : maxvis;
1.19 schwarze 156:
1.33 schwarze 157: /*
158: * Indent the first line of a paragraph.
159: */
160: vbl = p->flags & TERMP_NOLPAD ? 0 : p->offset;
161:
1.42 schwarze 162: vis = vend = i = 0;
1.19 schwarze 163:
1.22 schwarze 164: while (i < (int)p->col) {
165: /*
1.42 schwarze 166: * Handle literal tab characters: collapse all
167: * subsequent tabs into a single huge set of spaces.
1.30 schwarze 168: */
169: for (j = i; j < (int)p->col; j++) {
170: if ('\t' != p->buf[j])
171: break;
1.42 schwarze 172: vend = (vis / p->tabwidth + 1) * p->tabwidth;
1.30 schwarze 173: vbl += vend - vis;
174: vis = vend;
175: }
1.22 schwarze 176:
1.1 kristaps 177: /*
178: * Count up visible word characters. Control sequences
179: * (starting with the CSI) aren't counted. A space
180: * generates a non-printing word, which is valid (the
181: * space is printed according to regular spacing rules).
182: */
183:
184: /* LINTED */
1.30 schwarze 185: for (jhy = 0; j < (int)p->col; j++) {
186: if ((j && ' ' == p->buf[j]) || '\t' == p->buf[j])
1.1 kristaps 187: break;
1.42 schwarze 188:
189: /* Back over the the last printed character. */
190: if (8 == p->buf[j]) {
191: assert(j);
192: vend -= (*p->width)(p, p->buf[j - 1]);
193: continue;
194: }
195:
196: /* Regular word. */
197: /* Break at the hyphen point if we overrun. */
198: if (vend > vis && vend < bp &&
199: ASCII_HYPH == p->buf[j])
200: jhy = j;
201:
202: vend += (*p->width)(p, p->buf[j]);
1.1 kristaps 203: }
204:
205: /*
1.5 schwarze 206: * Find out whether we would exceed the right margin.
1.33 schwarze 207: * If so, break to the next line.
1.5 schwarze 208: */
1.33 schwarze 209: if (vend > bp && 0 == jhy && vis > 0) {
1.22 schwarze 210: vend -= vis;
1.37 schwarze 211: (*p->endline)(p);
1.5 schwarze 212: if (TERMP_NOBREAK & p->flags) {
1.29 schwarze 213: p->viscol = p->rmargin;
1.37 schwarze 214: (*p->advance)(p, p->rmargin);
1.22 schwarze 215: vend += p->rmargin - p->offset;
1.5 schwarze 216: } else {
1.33 schwarze 217: p->viscol = 0;
218: vbl = p->offset;
1.5 schwarze 219: }
1.33 schwarze 220:
1.26 schwarze 221: /* Remove the p->overstep width. */
1.33 schwarze 222:
1.18 schwarze 223: bp += (int)/* LINTED */
1.26 schwarze 224: p->overstep;
225: p->overstep = 0;
1.1 kristaps 226: }
227:
1.3 schwarze 228: /*
1.30 schwarze 229: * Skip leading tabs, they were handled above.
230: */
231: while (i < (int)p->col && '\t' == p->buf[i])
232: i++;
233:
1.33 schwarze 234: /* Write out the [remaining] word. */
1.1 kristaps 235: for ( ; i < (int)p->col; i++) {
1.25 schwarze 236: if (vend > bp && jhy > 0 && i > jhy)
1.30 schwarze 237: break;
238: if ('\t' == p->buf[i])
1.1 kristaps 239: break;
1.22 schwarze 240: if (' ' == p->buf[i]) {
1.33 schwarze 241: while (' ' == p->buf[i]) {
1.42 schwarze 242: vbl += (*p->width)(p, p->buf[i]);
1.33 schwarze 243: i++;
244: }
1.22 schwarze 245: break;
246: }
1.33 schwarze 247: if (ASCII_NBRSP == p->buf[i]) {
1.42 schwarze 248: vbl += (*p->width)(p, ' ');
1.33 schwarze 249: continue;
250: }
251:
252: /*
253: * Now we definitely know there will be
254: * printable characters to output,
255: * so write preceding white space now.
256: */
257: if (vbl) {
1.37 schwarze 258: (*p->advance)(p, vbl);
1.33 schwarze 259: p->viscol += vbl;
260: vbl = 0;
261: }
1.35 schwarze 262:
1.42 schwarze 263: if (ASCII_HYPH == p->buf[i]) {
1.37 schwarze 264: (*p->letter)(p, '-');
1.42 schwarze 265: p->viscol += (*p->width)(p, '-');
266: } else {
1.37 schwarze 267: (*p->letter)(p, p->buf[i]);
1.42 schwarze 268: p->viscol += (*p->width)(p, p->buf[i]);
269: }
1.1 kristaps 270: }
1.33 schwarze 271: vend += vbl;
1.22 schwarze 272: vis = vend;
1.1 kristaps 273: }
1.18 schwarze 274:
1.9 schwarze 275: p->col = 0;
1.26 schwarze 276: p->overstep = 0;
1.1 kristaps 277:
1.9 schwarze 278: if ( ! (TERMP_NOBREAK & p->flags)) {
1.29 schwarze 279: p->viscol = 0;
1.37 schwarze 280: (*p->endline)(p);
1.1 kristaps 281: return;
282: }
283:
1.9 schwarze 284: if (TERMP_HANG & p->flags) {
285: /* We need one blank after the tag. */
1.26 schwarze 286: p->overstep = /* LINTED */
1.42 schwarze 287: vis - maxvis + (*p->width)(p, ' ');
1.9 schwarze 288:
289: /*
290: * Behave exactly the same way as groff:
291: * If we have overstepped the margin, temporarily move
292: * it to the right and flag the rest of the line to be
293: * shorter.
294: * If we landed right at the margin, be happy.
295: * If we are one step before the margin, temporarily
296: * move it one step LEFT and flag the rest of the line
297: * to be longer.
298: */
1.26 schwarze 299: if (p->overstep >= -1) {
300: assert((int)maxvis + p->overstep >= 0);
1.9 schwarze 301: /* LINTED */
1.26 schwarze 302: maxvis += p->overstep;
1.9 schwarze 303: } else
1.26 schwarze 304: p->overstep = 0;
1.9 schwarze 305:
306: } else if (TERMP_DANGLE & p->flags)
307: return;
1.1 kristaps 308:
1.9 schwarze 309: /* Right-pad. */
310: if (maxvis > vis + /* LINTED */
1.42 schwarze 311: ((TERMP_TWOSPACE & p->flags) ?
312: (*p->width)(p, ' ') : 0)) {
1.29 schwarze 313: p->viscol += maxvis - vis;
1.37 schwarze 314: (*p->advance)(p, maxvis - vis);
315: vis += (maxvis - vis);
1.29 schwarze 316: } else { /* ...or newline break. */
1.37 schwarze 317: (*p->endline)(p);
1.29 schwarze 318: p->viscol = p->rmargin;
1.37 schwarze 319: (*p->advance)(p, p->rmargin);
1.9 schwarze 320: }
1.1 kristaps 321: }
322:
323:
324: /*
325: * A newline only breaks an existing line; it won't assert vertical
326: * space. All data in the output buffer is flushed prior to the newline
327: * assertion.
328: */
329: void
330: term_newln(struct termp *p)
331: {
332:
333: p->flags |= TERMP_NOSPACE;
1.29 schwarze 334: if (0 == p->col && 0 == p->viscol) {
1.1 kristaps 335: p->flags &= ~TERMP_NOLPAD;
336: return;
337: }
338: term_flushln(p);
339: p->flags &= ~TERMP_NOLPAD;
340: }
341:
342:
343: /*
344: * Asserts a vertical space (a full, empty line-break between lines).
345: * Note that if used twice, this will cause two blank spaces and so on.
346: * All data in the output buffer is flushed prior to the newline
347: * assertion.
348: */
349: void
350: term_vspace(struct termp *p)
351: {
352:
353: term_newln(p);
1.29 schwarze 354: p->viscol = 0;
1.37 schwarze 355: (*p->endline)(p);
1.1 kristaps 356: }
357:
358:
359: static void
1.45 ! schwarze 360: spec(struct termp *p, enum roffdeco d, const char *word, size_t len)
1.1 kristaps 361: {
362: const char *rhs;
363: size_t sz;
364:
1.45 ! schwarze 365: rhs = chars_spec2str(p->symtab, word, len, &sz);
1.20 schwarze 366: if (rhs)
367: encode(p, rhs, sz);
1.45 ! schwarze 368: else if (DECO_SSPECIAL == d)
! 369: encode(p, word, len);
1.11 schwarze 370: }
371:
372:
373: static void
1.20 schwarze 374: res(struct termp *p, const char *word, size_t len)
1.11 schwarze 375: {
376: const char *rhs;
377: size_t sz;
378:
1.45 ! schwarze 379: rhs = chars_res2str(p->symtab, word, len, &sz);
1.20 schwarze 380: if (rhs)
381: encode(p, rhs, sz);
382: }
383:
384:
385: void
386: term_fontlast(struct termp *p)
387: {
388: enum termfont f;
1.11 schwarze 389:
1.20 schwarze 390: f = p->fontl;
391: p->fontl = p->fontq[p->fonti];
392: p->fontq[p->fonti] = f;
393: }
394:
395:
396: void
397: term_fontrepl(struct termp *p, enum termfont f)
398: {
399:
400: p->fontl = p->fontq[p->fonti];
401: p->fontq[p->fonti] = f;
1.1 kristaps 402: }
403:
404:
1.20 schwarze 405: void
406: term_fontpush(struct termp *p, enum termfont f)
1.1 kristaps 407: {
1.7 schwarze 408:
1.20 schwarze 409: assert(p->fonti + 1 < 10);
410: p->fontl = p->fontq[p->fonti];
411: p->fontq[++p->fonti] = f;
412: }
1.1 kristaps 413:
414:
1.20 schwarze 415: const void *
416: term_fontq(struct termp *p)
417: {
1.1 kristaps 418:
1.20 schwarze 419: return(&p->fontq[p->fonti]);
420: }
1.1 kristaps 421:
422:
1.20 schwarze 423: enum termfont
424: term_fonttop(struct termp *p)
425: {
1.1 kristaps 426:
1.20 schwarze 427: return(p->fontq[p->fonti]);
428: }
1.7 schwarze 429:
430:
1.20 schwarze 431: void
432: term_fontpopq(struct termp *p, const void *key)
433: {
1.1 kristaps 434:
1.20 schwarze 435: while (p->fonti >= 0 && key != &p->fontq[p->fonti])
436: p->fonti--;
437: assert(p->fonti >= 0);
438: }
1.1 kristaps 439:
440:
1.20 schwarze 441: void
442: term_fontpop(struct termp *p)
443: {
1.1 kristaps 444:
1.20 schwarze 445: assert(p->fonti);
446: p->fonti--;
1.1 kristaps 447: }
448:
449:
450: /*
451: * Handle pwords, partial words, which may be either a single word or a
452: * phrase that cannot be broken down (such as a literal string). This
453: * handles word styling.
454: */
1.7 schwarze 455: void
456: term_word(struct termp *p, const char *word)
1.1 kristaps 457: {
1.20 schwarze 458: const char *sv, *seq;
459: int sz;
460: size_t ssz;
461: enum roffdeco deco;
1.1 kristaps 462:
1.14 schwarze 463: sv = word;
464:
1.20 schwarze 465: if (word[0] && '\0' == word[1])
1.14 schwarze 466: switch (word[0]) {
467: case('.'):
468: /* FALLTHROUGH */
469: case(','):
470: /* FALLTHROUGH */
471: case(';'):
472: /* FALLTHROUGH */
473: case(':'):
474: /* FALLTHROUGH */
475: case('?'):
476: /* FALLTHROUGH */
477: case('!'):
478: /* FALLTHROUGH */
479: case(')'):
480: /* FALLTHROUGH */
481: case(']'):
482: if ( ! (TERMP_IGNDELIM & p->flags))
483: p->flags |= TERMP_NOSPACE;
484: break;
485: default:
486: break;
487: }
1.1 kristaps 488:
1.31 schwarze 489: if ( ! (TERMP_NOSPACE & p->flags)) {
1.40 schwarze 490: if ( ! (TERMP_KEEP & p->flags)) {
491: if (TERMP_PREKEEP & p->flags)
492: p->flags |= TERMP_KEEP;
1.31 schwarze 493: bufferc(p, ' ');
1.40 schwarze 494: if (TERMP_SENTENCE & p->flags)
495: bufferc(p, ' ');
496: } else
497: bufferc(p, ASCII_NBRSP);
1.31 schwarze 498: }
1.1 kristaps 499:
500: if ( ! (p->flags & TERMP_NONOSPACE))
501: p->flags &= ~TERMP_NOSPACE;
502:
1.31 schwarze 503: p->flags &= ~TERMP_SENTENCE;
504:
1.45 ! schwarze 505: while (*word) {
! 506: if ((ssz = strcspn(word, "\\")) > 0)
! 507: encode(p, word, ssz);
1.20 schwarze 508:
1.45 ! schwarze 509: word += ssz;
! 510: if ('\\' != *word)
1.20 schwarze 511: continue;
512:
513: seq = ++word;
514: sz = a2roffdeco(&deco, &seq, &ssz);
515:
516: switch (deco) {
517: case (DECO_RESERVED):
518: res(p, seq, ssz);
519: break;
520: case (DECO_SPECIAL):
1.45 ! schwarze 521: /* FALLTHROUGH */
! 522: case (DECO_SSPECIAL):
! 523: spec(p, deco, seq, ssz);
1.20 schwarze 524: break;
525: case (DECO_BOLD):
526: term_fontrepl(p, TERMFONT_BOLD);
527: break;
528: case (DECO_ITALIC):
529: term_fontrepl(p, TERMFONT_UNDER);
530: break;
531: case (DECO_ROMAN):
532: term_fontrepl(p, TERMFONT_NONE);
533: break;
534: case (DECO_PREVIOUS):
535: term_fontlast(p);
536: break;
537: default:
538: break;
539: }
540:
541: word += sz;
542: if (DECO_NOSPACE == deco && '\0' == *word)
543: p->flags |= TERMP_NOSPACE;
544: }
1.1 kristaps 545:
1.31 schwarze 546: /*
547: * Note that we don't process the pipe: the parser sees it as
548: * punctuation, but we don't in terms of typography.
549: */
1.45 ! schwarze 550: if (sv[0] && '\0' == sv[1])
1.14 schwarze 551: switch (sv[0]) {
552: case('('):
553: /* FALLTHROUGH */
554: case('['):
555: p->flags |= TERMP_NOSPACE;
556: break;
557: default:
558: break;
559: }
1.1 kristaps 560: }
561:
562:
563: static void
1.20 schwarze 564: adjbuf(struct termp *p, size_t sz)
1.1 kristaps 565: {
566:
1.20 schwarze 567: if (0 == p->maxcols)
568: p->maxcols = 1024;
569: while (sz >= p->maxcols)
570: p->maxcols <<= 2;
571:
572: p->buf = realloc(p->buf, p->maxcols);
573: if (NULL == p->buf) {
574: perror(NULL);
575: exit(EXIT_FAILURE);
1.1 kristaps 576: }
577: }
578:
1.4 schwarze 579:
580: static void
1.20 schwarze 581: buffera(struct termp *p, const char *word, size_t sz)
582: {
583:
584: if (p->col + sz >= p->maxcols)
585: adjbuf(p, p->col + sz);
586:
587: memcpy(&p->buf[(int)p->col], word, sz);
588: p->col += sz;
589: }
590:
591:
592: static void
593: bufferc(struct termp *p, char c)
594: {
595:
596: if (p->col + 1 >= p->maxcols)
597: adjbuf(p, p->col + 1);
598:
599: p->buf[(int)p->col++] = c;
600: }
601:
602:
603: static void
604: encode(struct termp *p, const char *word, size_t sz)
1.4 schwarze 605: {
1.20 schwarze 606: enum termfont f;
607: int i;
608:
609: /*
610: * Encode and buffer a string of characters. If the current
611: * font mode is unset, buffer directly, else encode then buffer
612: * character by character.
613: */
614:
1.38 schwarze 615: if (TERMFONT_NONE == (f = term_fonttop(p))) {
1.20 schwarze 616: buffera(p, word, sz);
617: return;
618: }
619:
620: for (i = 0; i < (int)sz; i++) {
621: if ( ! isgraph((u_char)word[i])) {
622: bufferc(p, word[i]);
623: continue;
1.4 schwarze 624: }
1.20 schwarze 625:
626: if (TERMFONT_UNDER == f)
627: bufferc(p, '_');
628: else
629: bufferc(p, word[i]);
630:
631: bufferc(p, 8);
632: bufferc(p, word[i]);
1.4 schwarze 633: }
634: }
1.16 schwarze 635:
636:
637: size_t
1.39 schwarze 638: term_len(const struct termp *p, size_t sz)
639: {
640:
641: return((*p->width)(p, ' ') * sz);
642: }
643:
644:
645: size_t
646: term_strlen(const struct termp *p, const char *cp)
647: {
648: size_t sz;
649:
650: for (sz = 0; *cp; cp++)
651: sz += (*p->width)(p, *cp);
652:
653: return(sz);
654: }
655:
656:
1.44 schwarze 657: /* ARGSUSED */
1.39 schwarze 658: size_t
659: term_vspan(const struct termp *p, const struct roffsu *su)
1.16 schwarze 660: {
661: double r;
662:
663: switch (su->unit) {
664: case (SCALE_CM):
665: r = su->scale * 2;
666: break;
667: case (SCALE_IN):
668: r = su->scale * 6;
669: break;
670: case (SCALE_PC):
671: r = su->scale;
672: break;
673: case (SCALE_PT):
674: r = su->scale / 8;
675: break;
676: case (SCALE_MM):
677: r = su->scale / 1000;
678: break;
679: case (SCALE_VS):
680: r = su->scale;
681: break;
682: default:
683: r = su->scale - 1;
684: break;
685: }
686:
687: if (r < 0.0)
688: r = 0.0;
689: return(/* LINTED */(size_t)
690: r);
691: }
692:
693:
694: size_t
1.39 schwarze 695: term_hspan(const struct termp *p, const struct roffsu *su)
1.16 schwarze 696: {
1.44 schwarze 697: double v;
1.16 schwarze 698:
1.44 schwarze 699: v = ((*p->hspan)(p, su));
700: if (v < 0.0)
701: v = 0.0;
702: return((size_t) /* LINTED */
703: v);
1.16 schwarze 704: }
![[BACK]](/icons/back.gif){kind=icon}
Return to term.c CVS log ![[TXT]](/icons/text.gif){kind=icon}
![[DIR]](/icons/dir.gif){kind=icon}
Up to [local] / src / usr.bin / mandoc