Annotation of mandoc/mdocterm.c, Revision 1.23
1.23 ! kristaps 1: /* $Id: mdocterm.c,v 1.22 2009/03/01 13:06:49 kristaps Exp $ */
1.1 kristaps 2: /*
3: * Copyright (c) 2008 Kristaps Dzonsons <kristaps@kth.se>
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
7: * above copyright notice and this permission notice appear in all
8: * copies.
9: *
10: * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL
11: * WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED
12: * WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE
13: * AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL
14: * DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR
15: * PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
16: * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
17: * PERFORMANCE OF THIS SOFTWARE.
18: */
1.18 kristaps 19: #include <sys/utsname.h>
20:
1.1 kristaps 21: #include <assert.h>
1.3 kristaps 22: #include <ctype.h>
1.1 kristaps 23: #include <err.h>
24: #include <getopt.h>
1.3 kristaps 25: #include <stdio.h>
1.1 kristaps 26: #include <stdlib.h>
1.3 kristaps 27: #include <string.h>
1.1 kristaps 28:
1.7 kristaps 29: #ifndef __OpenBSD__
1.5 kristaps 30: #include <time.h>
31: #endif
32:
1.2 kristaps 33: #include "mmain.h"
1.1 kristaps 34: #include "term.h"
35:
1.16 kristaps 36: #define TERMSYM_RBRACK "]"
37: #define TERMSYM_LBRACK "["
38: #define TERMSYM_LARROW "<-"
39: #define TERMSYM_RARROW "->"
40: #define TERMSYM_UARROW "^"
1.17 kristaps 41: #define TERMSYM_DARROW "v"
1.16 kristaps 42: #define TERMSYM_LSQUOTE "`"
43: #define TERMSYM_RSQUOTE "\'"
44: #define TERMSYM_SQUOTE "\'"
45: #define TERMSYM_LDQUOTE "``"
46: #define TERMSYM_RDQUOTE "\'\'"
47: #define TERMSYM_DQUOTE "\""
48: #define TERMSYM_LT "<"
49: #define TERMSYM_GT ">"
50: #define TERMSYM_LE "<="
51: #define TERMSYM_GE ">="
52: #define TERMSYM_EQ "=="
53: #define TERMSYM_NEQ "!="
54: #define TERMSYM_ACUTE "\'"
55: #define TERMSYM_GRAVE "`"
56: #define TERMSYM_PI "pi"
57: #define TERMSYM_PLUSMINUS "+="
1.17 kristaps 58: #define TERMSYM_INF "oo"
59: #define TERMSYM_INF2 "infinity"
1.16 kristaps 60: #define TERMSYM_NAN "NaN"
61: #define TERMSYM_BAR "|"
62: #define TERMSYM_BULLET "o"
63:
1.7 kristaps 64: #ifdef __NetBSD__
65: #define xisspace(x) isspace((int)(x))
66: #else
67: #define xisspace(x) isspace((x))
68: #endif
69:
1.3 kristaps 70: enum termstyle {
71: STYLE_CLEAR,
72: STYLE_BOLD,
73: STYLE_UNDERLINE
74: };
75:
76: static void body(struct termp *,
1.12 kristaps 77: struct termpair *,
1.3 kristaps 78: const struct mdoc_meta *,
79: const struct mdoc_node *);
80: static void header(struct termp *,
81: const struct mdoc_meta *);
82: static void footer(struct termp *,
83: const struct mdoc_meta *);
84:
85: static void pword(struct termp *, const char *, size_t);
86: static void pescape(struct termp *,
87: const char *, size_t *, size_t);
1.12 kristaps 88: static void nescape(struct termp *,
89: const char *, size_t);
1.3 kristaps 90: static void chara(struct termp *, char);
1.4 kristaps 91: static void stringa(struct termp *, const char *);
1.3 kristaps 92: static void style(struct termp *, enum termstyle);
93:
94: #ifdef __linux__
95: extern size_t strlcat(char *, const char *, size_t);
96: extern size_t strlcpy(char *, const char *, size_t);
97: #endif
98:
99:
1.1 kristaps 100: int
101: main(int argc, char *argv[])
102: {
1.2 kristaps 103: struct mmain *p;
104: const struct mdoc *mdoc;
1.3 kristaps 105: struct termp termp;
1.2 kristaps 106:
107: p = mmain_alloc();
1.1 kristaps 108:
1.3 kristaps 109: if ( ! mmain_getopt(p, argc, argv, NULL, NULL, NULL, NULL))
1.2 kristaps 110: mmain_exit(p, 1);
1.1 kristaps 111:
1.3 kristaps 112: if (NULL == (mdoc = mmain_mdoc(p)))
113: mmain_exit(p, 1);
114:
1.19 kristaps 115: termp.maxrmargin = 78; /* XXX */
1.3 kristaps 116: termp.rmargin = termp.maxrmargin;
117: termp.maxcols = 1024;
118: termp.offset = termp.col = 0;
119: termp.flags = TERMP_NOSPACE;
120:
121: if (NULL == (termp.buf = malloc(termp.maxcols)))
122: err(1, "malloc");
123:
1.15 kristaps 124: header(&termp, mdoc_meta(mdoc));
1.12 kristaps 125: body(&termp, NULL, mdoc_meta(mdoc), mdoc_node(mdoc));
1.3 kristaps 126: footer(&termp, mdoc_meta(mdoc));
127:
128: free(termp.buf);
129:
130: mmain_exit(p, 0);
131: /* NOTREACHED */
132: }
133:
134:
135: void
136: flushln(struct termp *p)
137: {
138: size_t i, j, vsz, vis, maxvis;
139:
140: /*
141: * First, establish the maximum columns of "visible" content.
142: * This is usually the difference between the right-margin and
143: * an indentation, but can be, for tagged lists or columns, a
144: * small set of values.
145: */
146:
147: assert(p->offset < p->rmargin);
148: maxvis = p->rmargin - p->offset;
149: vis = 0;
150:
151: /*
152: * If in the standard case (left-justified), then begin with our
153: * indentation, otherwise (columns, etc.) just start spitting
154: * out text.
155: */
156:
157: if ( ! (p->flags & TERMP_NOLPAD))
158: /* LINTED */
159: for (j = 0; j < p->offset; j++)
160: putchar(' ');
161:
162: /*
163: * If we're literal, print out verbatim.
164: */
165: if (p->flags & TERMP_LITERAL) {
166: for (i = 0; i < p->col; i++)
167: putchar(p->buf[i]);
168: putchar('\n');
169: p->col = 0;
170: return;
171: }
172:
173: for (i = 0; i < p->col; i++) {
174: /*
175: * Count up visible word characters. Control sequences
1.23 ! kristaps 176: * (starting with the CSI) aren't counted. A space
! 177: * generates a non-printing word, which is valid (the
! 178: * space is printed according to regular spacing rules).
1.3 kristaps 179: */
180:
181: /* LINTED */
182: for (j = i, vsz = 0; j < p->col; j++) {
1.7 kristaps 183: if (xisspace(p->buf[j]))
1.3 kristaps 184: break;
185: else if (27 == p->buf[j]) {
186: assert(j + 4 <= p->col);
187: j += 3;
188: } else
189: vsz++;
190: }
191:
192: /*
1.22 kristaps 193: * If we're breaking normally...
194: *
1.3 kristaps 195: * If a word is too long and we're within a line, put it
196: * on the next line. Puke if we're being asked to write
197: * something that will exceed the right margin (i.e.,
1.22 kristaps 198: * from a fresh line).
199: *
200: * If we're not breaking...
201: *
202: * Don't let the visible size exceed the full margin.
1.3 kristaps 203: */
204:
1.22 kristaps 205: if ( ! (TERMP_NOBREAK & p->flags)) {
206: if (vis && vis + vsz > maxvis) {
207: putchar('\n');
208: for (j = 0; j < p->offset; j++)
209: putchar(' ');
210: vis = 0;
211: } else if (vis + vsz > maxvis)
1.3 kristaps 212: errx(1, "word breaks right margin");
1.22 kristaps 213: } else if (vis + vsz > p->maxrmargin)
1.3 kristaps 214: errx(1, "word breaks right margin");
215:
216: /*
217: * Write out the word and a trailing space. Omit the
218: * space if we're the last word in the line.
219: */
220:
221: for ( ; i < p->col; i++) {
1.7 kristaps 222: if (xisspace(p->buf[i]))
1.3 kristaps 223: break;
224: putchar(p->buf[i]);
225: }
226: vis += vsz;
227: if (i < p->col) {
228: putchar(' ');
229: vis++;
230: }
231: }
232:
1.22 kristaps 233: if ((TERMP_NOBREAK & p->flags) && vis >= maxvis) {
234: putchar('\n');
235: for (i = 0; i < p->rmargin; i++)
236: putchar(' ');
237: p->col = 0;
238: return;
239: }
240:
1.3 kristaps 241: /*
242: * If we're not to right-marginalise it (newline), then instead
243: * pad to the right margin and stay off.
244: */
245:
246: if (p->flags & TERMP_NOBREAK) {
1.22 kristaps 247: for ( ; vis < maxvis; vis++)
248: putchar(' ');
1.3 kristaps 249: } else
250: putchar('\n');
251:
252: p->col = 0;
253: }
254:
255:
256: void
257: newln(struct termp *p)
258: {
1.1 kristaps 259:
1.3 kristaps 260: /*
261: * A newline only breaks an existing line; it won't assert
262: * vertical space.
263: */
264: p->flags |= TERMP_NOSPACE;
1.12 kristaps 265: if (0 == p->col) {
266: p->flags &= ~TERMP_NOLPAD;
1.3 kristaps 267: return;
1.12 kristaps 268: }
1.3 kristaps 269: flushln(p);
1.11 kristaps 270: p->flags &= ~TERMP_NOLPAD;
1.3 kristaps 271: }
272:
273:
274: void
275: vspace(struct termp *p)
276: {
277:
278: /*
279: * Asserts a vertical space (a full, empty line-break between
280: * lines).
281: */
282: newln(p);
283: putchar('\n');
284: }
285:
286:
287: static void
1.4 kristaps 288: stringa(struct termp *p, const char *s)
289: {
290:
291: /* XXX - speed up if not passing to chara. */
292: for ( ; *s; s++)
293: chara(p, *s);
294: }
295:
296:
297: static void
1.3 kristaps 298: chara(struct termp *p, char c)
299: {
300:
1.16 kristaps 301: /*
302: * Insert a single character into the line-buffer. If the
303: * buffer's space is exceeded, then allocate more space.
304: */
305: if (p->col + 1 >= p->maxcols) {
306: p->buf = realloc(p->buf, p->maxcols * 2);
307: if (NULL == p->buf)
308: err(1, "malloc");
309: p->maxcols *= 2;
310: }
1.3 kristaps 311: p->buf[(p->col)++] = c;
312: }
313:
314:
315: static void
316: style(struct termp *p, enum termstyle esc)
317: {
318:
319: if (p->col + 4 >= p->maxcols)
320: errx(1, "line overrun");
321:
322: p->buf[(p->col)++] = 27;
323: p->buf[(p->col)++] = '[';
324: switch (esc) {
325: case (STYLE_CLEAR):
326: p->buf[(p->col)++] = '0';
327: break;
328: case (STYLE_BOLD):
329: p->buf[(p->col)++] = '1';
330: break;
331: case (STYLE_UNDERLINE):
332: p->buf[(p->col)++] = '4';
333: break;
334: default:
335: abort();
336: /* NOTREACHED */
337: }
338: p->buf[(p->col)++] = 'm';
339: }
340:
341:
342: static void
1.12 kristaps 343: nescape(struct termp *p, const char *word, size_t len)
344: {
345:
346: switch (len) {
1.16 kristaps 347: case (1):
348: if ('q' == word[0])
349: stringa(p, TERMSYM_DQUOTE);
350: break;
1.12 kristaps 351: case (2):
352: if ('r' == word[0] && 'B' == word[1])
1.16 kristaps 353: stringa(p, TERMSYM_RBRACK);
1.12 kristaps 354: else if ('l' == word[0] && 'B' == word[1])
1.16 kristaps 355: stringa(p, TERMSYM_LBRACK);
1.17 kristaps 356: else if ('l' == word[0] && 'q' == word[1])
357: stringa(p, TERMSYM_LDQUOTE);
358: else if ('r' == word[0] && 'q' == word[1])
359: stringa(p, TERMSYM_RDQUOTE);
360: else if ('o' == word[0] && 'q' == word[1])
361: stringa(p, TERMSYM_LSQUOTE);
362: else if ('a' == word[0] && 'q' == word[1])
363: stringa(p, TERMSYM_RSQUOTE);
1.12 kristaps 364: else if ('<' == word[0] && '-' == word[1])
1.16 kristaps 365: stringa(p, TERMSYM_LARROW);
1.12 kristaps 366: else if ('-' == word[0] && '>' == word[1])
1.16 kristaps 367: stringa(p, TERMSYM_RARROW);
1.12 kristaps 368: else if ('b' == word[0] && 'u' == word[1])
1.16 kristaps 369: stringa(p, TERMSYM_BULLET);
370: else if ('<' == word[0] && '=' == word[1])
371: stringa(p, TERMSYM_LE);
372: else if ('>' == word[0] && '=' == word[1])
373: stringa(p, TERMSYM_GE);
1.17 kristaps 374: else if ('=' == word[0] && '=' == word[1])
375: stringa(p, TERMSYM_EQ);
376: else if ('+' == word[0] && '-' == word[1])
377: stringa(p, TERMSYM_PLUSMINUS);
1.16 kristaps 378: else if ('u' == word[0] && 'a' == word[1])
379: stringa(p, TERMSYM_UARROW);
1.17 kristaps 380: else if ('d' == word[0] && 'a' == word[1])
381: stringa(p, TERMSYM_DARROW);
1.16 kristaps 382: else if ('a' == word[0] && 'a' == word[1])
383: stringa(p, TERMSYM_ACUTE);
384: else if ('g' == word[0] && 'a' == word[1])
385: stringa(p, TERMSYM_GRAVE);
1.17 kristaps 386: else if ('!' == word[0] && '=' == word[1])
1.16 kristaps 387: stringa(p, TERMSYM_NEQ);
1.17 kristaps 388: else if ('i' == word[0] && 'f' == word[1])
389: stringa(p, TERMSYM_INF);
390: else if ('n' == word[0] && 'a' == word[1])
391: stringa(p, TERMSYM_NAN);
392: else if ('b' == word[0] && 'a' == word[1])
393: stringa(p, TERMSYM_BAR);
394:
395: /* Deprecated forms. */
396: else if ('B' == word[0] && 'a' == word[1])
397: stringa(p, TERMSYM_BAR);
398: else if ('I' == word[0] && 'f' == word[1])
399: stringa(p, TERMSYM_INF2);
400: else if ('G' == word[0] && 'e' == word[1])
401: stringa(p, TERMSYM_GE);
402: else if ('G' == word[0] && 't' == word[1])
403: stringa(p, TERMSYM_GT);
404: else if ('L' == word[0] && 'e' == word[1])
405: stringa(p, TERMSYM_LE);
406: else if ('L' == word[0] && 'q' == word[1])
407: stringa(p, TERMSYM_LDQUOTE);
1.16 kristaps 408: else if ('L' == word[0] && 't' == word[1])
409: stringa(p, TERMSYM_LT);
1.17 kristaps 410: else if ('N' == word[0] && 'a' == word[1])
411: stringa(p, TERMSYM_NAN);
412: else if ('N' == word[0] && 'e' == word[1])
413: stringa(p, TERMSYM_NEQ);
414: else if ('P' == word[0] && 'i' == word[1])
415: stringa(p, TERMSYM_PI);
1.16 kristaps 416: else if ('P' == word[0] && 'm' == word[1])
417: stringa(p, TERMSYM_PLUSMINUS);
1.17 kristaps 418: else if ('R' == word[0] && 'q' == word[1])
419: stringa(p, TERMSYM_RDQUOTE);
1.12 kristaps 420: break;
421: default:
422: break;
423: }
424: }
425:
426:
427: static void
1.3 kristaps 428: pescape(struct termp *p, const char *word, size_t *i, size_t len)
429: {
1.12 kristaps 430: size_t j;
1.3 kristaps 431:
432: (*i)++;
433: assert(*i < len);
434:
1.16 kristaps 435: /*
436: * Handle an escape sequence. This must manage both groff-style
437: * escapes and mdoc-style escapes.
438: */
439:
1.3 kristaps 440: if ('(' == word[*i]) {
441: /* Two-character escapes. */
442: (*i)++;
443: assert(*i + 1 < len);
1.12 kristaps 444: nescape(p, &word[*i], 2);
1.3 kristaps 445: (*i)++;
446: return;
447:
1.16 kristaps 448: } else if ('*' == word[*i]) {
449: (*i)++;
450: assert(*i < len);
451: switch (word[*i]) {
452: case ('('):
453: (*i)++;
454: assert(*i + 1 < len);
455: nescape(p, &word[*i], 2);
456: (*i)++;
457: return;
458: default:
459: break;
460: }
461: nescape(p, &word[*i], 1);
462: return;
463:
1.3 kristaps 464: } else if ('[' != word[*i]) {
465: /* One-character escapes. */
466: switch (word[*i]) {
467: case ('\\'):
468: /* FALLTHROUGH */
469: case ('\''):
470: /* FALLTHROUGH */
471: case ('`'):
472: /* FALLTHROUGH */
473: case ('-'):
474: /* FALLTHROUGH */
1.13 kristaps 475: case (' '):
476: /* FALLTHROUGH */
1.3 kristaps 477: case ('.'):
478: chara(p, word[*i]);
1.21 kristaps 479: break;
480: case ('e'):
481: chara(p, '\\');
482: break;
1.1 kristaps 483: default:
1.3 kristaps 484: break;
485: }
486: return;
487: }
1.12 kristaps 488:
489: (*i)++;
490: for (j = 0; word[*i] && ']' != word[*i]; (*i)++, j++)
491: /* Loop... */ ;
492:
493: nescape(p, &word[*i - j], j);
1.3 kristaps 494: }
495:
496:
497: static void
498: pword(struct termp *p, const char *word, size_t len)
499: {
500: size_t i;
501:
1.16 kristaps 502: /*
503: * Handle pwords, partial words, which may be either a single
504: * word or a phrase that cannot be broken down (such as a
505: * literal string). This handles word styling.
506: */
507:
1.3 kristaps 508: if ( ! (p->flags & TERMP_NOSPACE) &&
509: ! (p->flags & TERMP_LITERAL))
510: chara(p, ' ');
511:
1.13 kristaps 512: if ( ! (p->flags & TERMP_NONOSPACE))
513: p->flags &= ~TERMP_NOSPACE;
1.3 kristaps 514:
1.16 kristaps 515: /*
516: * XXX - if literal and underlining, this will underline the
517: * spaces between literal words.
518: */
519:
1.3 kristaps 520: if (p->flags & TERMP_BOLD)
521: style(p, STYLE_BOLD);
522: if (p->flags & TERMP_UNDERLINE)
523: style(p, STYLE_UNDERLINE);
524:
525: for (i = 0; i < len; i++) {
526: if ('\\' == word[i]) {
527: pescape(p, word, &i, len);
528: continue;
529: }
530: chara(p, word[i]);
531: }
532:
533: if (p->flags & TERMP_BOLD ||
534: p->flags & TERMP_UNDERLINE)
535: style(p, STYLE_CLEAR);
536: }
537:
538:
539: void
540: word(struct termp *p, const char *word)
541: {
542: size_t i, j, len;
543:
1.16 kristaps 544: /*
545: * Break apart a word into tokens. If we're a literal word,
546: * then don't. This doesn't handle zero-length words (there
547: * should be none) and makes sure that pword doesn't get spaces
548: * or nil words unless literal.
549: */
550:
1.3 kristaps 551: if (p->flags & TERMP_LITERAL) {
552: pword(p, word, strlen(word));
553: return;
554: }
555:
556: len = strlen(word);
557: assert(len > 0);
558:
559: if (mdoc_isdelim(word)) {
560: if ( ! (p->flags & TERMP_IGNDELIM))
561: p->flags |= TERMP_NOSPACE;
562: p->flags &= ~TERMP_IGNDELIM;
563: }
564:
565: /* LINTED */
566: for (j = i = 0; i < len; i++) {
1.7 kristaps 567: if ( ! xisspace(word[i])) {
1.3 kristaps 568: j++;
569: continue;
1.20 kristaps 570: }
571:
572: /* Escaped spaces don't delimit... */
573: if (i > 0 && xisspace(word[i]) && '\\' == word[i - 1]) {
574: j++;
575: continue;
1.1 kristaps 576: }
1.20 kristaps 577:
1.3 kristaps 578: if (0 == j)
579: continue;
580: assert(i >= j);
581: pword(p, &word[i - j], j);
582: j = 0;
583: }
584: if (j > 0) {
585: assert(i >= j);
586: pword(p, &word[i - j], j);
587: }
588: }
589:
590:
591: static void
1.12 kristaps 592: body(struct termp *p, struct termpair *ppair,
593: const struct mdoc_meta *meta,
1.3 kristaps 594: const struct mdoc_node *node)
595: {
596: int dochild;
1.9 kristaps 597: struct termpair pair;
1.3 kristaps 598:
1.16 kristaps 599: /*
600: * This is the main function for printing out nodes. It's
601: * constituted of PRE and POST functions, which correspond to
602: * prefix and infix processing.
603: */
604:
1.3 kristaps 605: /* Pre-processing. */
606:
607: dochild = 1;
1.12 kristaps 608: pair.ppair = ppair;
1.9 kristaps 609: pair.type = 0;
1.11 kristaps 610: pair.offset = pair.rmargin = 0;
1.10 kristaps 611: pair.flag = 0;
1.12 kristaps 612: pair.count = 0;
1.3 kristaps 613:
614: if (MDOC_TEXT != node->type) {
615: if (termacts[node->tok].pre)
1.9 kristaps 616: if ( ! (*termacts[node->tok].pre)(p, &pair, meta, node))
1.3 kristaps 617: dochild = 0;
618: } else /* MDOC_TEXT == node->type */
619: word(p, node->data.text.string);
620:
621: /* Children. */
622:
1.10 kristaps 623: if (TERMPAIR_FLAG & pair.type)
624: p->flags |= pair.flag;
1.9 kristaps 625:
1.3 kristaps 626: if (dochild && node->child)
1.12 kristaps 627: body(p, &pair, meta, node->child);
1.3 kristaps 628:
1.10 kristaps 629: if (TERMPAIR_FLAG & pair.type)
630: p->flags &= ~pair.flag;
1.9 kristaps 631:
1.3 kristaps 632: /* Post-processing. */
633:
634: if (MDOC_TEXT != node->type)
635: if (termacts[node->tok].post)
1.9 kristaps 636: (*termacts[node->tok].post)(p, &pair, meta, node);
1.3 kristaps 637:
638: /* Siblings. */
1.1 kristaps 639:
1.3 kristaps 640: if (node->next)
1.12 kristaps 641: body(p, ppair, meta, node->next);
1.3 kristaps 642: }
643:
644:
645: static void
646: footer(struct termp *p, const struct mdoc_meta *meta)
647: {
648: struct tm *tm;
649: char *buf, *os;
650:
651: if (NULL == (buf = malloc(p->rmargin)))
652: err(1, "malloc");
653: if (NULL == (os = malloc(p->rmargin)))
654: err(1, "malloc");
655:
656: tm = localtime(&meta->date);
657:
1.7 kristaps 658: #ifdef __OpenBSD__
659: if (NULL == strftime(buf, p->rmargin, "%B %d, %Y", tm))
660: #else
1.3 kristaps 661: if (0 == strftime(buf, p->rmargin, "%B %d, %Y", tm))
662: #endif
663: err(1, "strftime");
664:
1.15 kristaps 665: (void)strlcpy(os, meta->os, p->rmargin);
1.3 kristaps 666:
1.16 kristaps 667: /*
668: * This is /slightly/ different from regular groff output
669: * because we don't have page numbers. Print the following:
670: *
671: * OS MDOCDATE
672: */
673:
1.15 kristaps 674: vspace(p);
1.3 kristaps 675:
1.15 kristaps 676: p->flags |= TERMP_NOSPACE | TERMP_NOBREAK;
677: p->rmargin = p->maxrmargin - strlen(buf);
678: p->offset = 0;
1.3 kristaps 679:
1.15 kristaps 680: word(p, os);
681: flushln(p);
1.3 kristaps 682:
1.15 kristaps 683: p->flags |= TERMP_NOLPAD | TERMP_NOSPACE;
684: p->offset = p->rmargin;
685: p->rmargin = p->maxrmargin;
686: p->flags &= ~TERMP_NOBREAK;
687:
688: word(p, buf);
689: flushln(p);
1.1 kristaps 690:
1.3 kristaps 691: free(buf);
692: free(os);
1.1 kristaps 693: }
694:
695:
1.3 kristaps 696: static void
697: header(struct termp *p, const struct mdoc_meta *meta)
698: {
1.18 kristaps 699: char *buf, *title, *bufp, *vbuf;
1.13 kristaps 700: const char *pp;
1.18 kristaps 701: struct utsname uts;
702:
703: p->rmargin = p->maxrmargin;
704: p->offset = 0;
1.3 kristaps 705:
706: if (NULL == (buf = malloc(p->rmargin)))
707: err(1, "malloc");
708: if (NULL == (title = malloc(p->rmargin)))
709: err(1, "malloc");
1.18 kristaps 710: if (NULL == (vbuf = malloc(p->rmargin)))
711: err(1, "malloc");
1.3 kristaps 712:
1.18 kristaps 713: if (NULL == (pp = mdoc_vol2a(meta->vol))) {
1.3 kristaps 714: switch (meta->msec) {
715: case (MSEC_1):
716: /* FALLTHROUGH */
717: case (MSEC_6):
718: /* FALLTHROUGH */
719: case (MSEC_7):
720: pp = mdoc_vol2a(VOL_URM);
721: break;
722: case (MSEC_8):
723: pp = mdoc_vol2a(VOL_SMM);
724: break;
725: case (MSEC_2):
726: /* FALLTHROUGH */
727: case (MSEC_3):
728: /* FALLTHROUGH */
729: case (MSEC_4):
730: /* FALLTHROUGH */
731: case (MSEC_5):
732: pp = mdoc_vol2a(VOL_PRM);
733: break;
734: case (MSEC_9):
735: pp = mdoc_vol2a(VOL_KM);
736: break;
737: default:
738: break;
739: }
1.18 kristaps 740: }
741: vbuf[0] = 0;
742:
743: if (pp) {
744: if (-1 == uname(&uts))
745: err(1, "uname");
746: (void)strlcat(vbuf, uts.sysname, p->rmargin);
747: (void)strlcat(vbuf, " ", p->rmargin);
748: } else if (NULL == (pp = mdoc_msec2a(meta->msec)))
749: pp = mdoc_msec2a(MSEC_local);
750:
751: (void)strlcat(vbuf, pp, p->rmargin);
1.3 kristaps 752:
1.16 kristaps 753: /*
754: * The header is strange. It has three components, which are
755: * really two with the first duplicated. It goes like this:
756: *
757: * IDENTIFIER TITLE IDENTIFIER
758: *
759: * The IDENTIFIER is NAME(SECTION), which is the command-name
760: * (if given, or "unknown" if not) followed by the manual page
761: * section. These are given in `Dt'. The TITLE is a free-form
762: * string depending on the manual volume. If not specified, it
763: * switches on the manual section.
764: */
765:
1.13 kristaps 766: if (mdoc_arch2a(meta->arch))
1.16 kristaps 767: (void)snprintf(buf, p->rmargin, "%s (%s)",
1.18 kristaps 768: vbuf, mdoc_arch2a(meta->arch));
1.13 kristaps 769: else
1.18 kristaps 770: (void)strlcpy(buf, vbuf, p->rmargin);
1.13 kristaps 771:
772: pp = mdoc_msec2a(meta->msec);
773:
774: (void)snprintf(title, p->rmargin, "%s(%s)",
775: meta->title, pp ? pp : "");
776:
1.16 kristaps 777: for (bufp = title; *bufp; bufp++)
778: *bufp = toupper(*bufp);
779:
1.13 kristaps 780: p->offset = 0;
781: p->rmargin = (p->maxrmargin - strlen(buf)) / 2;
1.15 kristaps 782: p->flags |= TERMP_NOBREAK | TERMP_NOSPACE;
1.3 kristaps 783:
1.13 kristaps 784: word(p, title);
785: flushln(p);
1.3 kristaps 786:
1.15 kristaps 787: p->flags |= TERMP_NOLPAD | TERMP_NOSPACE;
1.13 kristaps 788: p->offset = p->rmargin;
1.15 kristaps 789: p->rmargin = p->maxrmargin - strlen(title);
1.3 kristaps 790:
1.13 kristaps 791: word(p, buf);
792: flushln(p);
1.3 kristaps 793:
1.13 kristaps 794: p->offset = p->rmargin;
795: p->rmargin = p->maxrmargin;
796: p->flags &= ~TERMP_NOBREAK;
1.15 kristaps 797: p->flags |= TERMP_NOLPAD | TERMP_NOSPACE;
1.3 kristaps 798:
1.13 kristaps 799: word(p, title);
800: flushln(p);
1.3 kristaps 801:
1.13 kristaps 802: p->rmargin = p->maxrmargin;
803: p->offset = 0;
804: p->flags &= ~TERMP_NOSPACE;
1.3 kristaps 805:
806: free(title);
1.18 kristaps 807: free(vbuf);
1.3 kristaps 808: free(buf);
809: }
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