Annotation of mandoc/mdocterm.c, Revision 1.18
1.18 ! kristaps 1: /* $Id: mdocterm.c,v 1.17 2009/02/27 09:14:02 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:
115: termp.maxrmargin = 80; /* XXX */
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
176: * (starting with the CSI) aren't counted.
177: */
1.7 kristaps 178: assert( ! xisspace(p->buf[i]));
1.3 kristaps 179:
180: /* LINTED */
181: for (j = i, vsz = 0; j < p->col; j++) {
1.7 kristaps 182: if (xisspace(p->buf[j]))
1.3 kristaps 183: break;
184: else if (27 == p->buf[j]) {
185: assert(j + 4 <= p->col);
186: j += 3;
187: } else
188: vsz++;
189: }
190: assert(vsz > 0);
191:
192: /*
193: * If a word is too long and we're within a line, put it
194: * on the next line. Puke if we're being asked to write
195: * something that will exceed the right margin (i.e.,
196: * from a fresh line or when we're not allowed to break
197: * the line with TERMP_NOBREAK).
198: */
199:
1.16 kristaps 200: /* FIXME: allow selective right-margin breaking. */
201:
1.14 kristaps 202: if (vis && vis + vsz > maxvis) {
1.3 kristaps 203: if (p->flags & TERMP_NOBREAK)
204: errx(1, "word breaks right margin");
205: putchar('\n');
206: for (j = 0; j < p->offset; j++)
207: putchar(' ');
208: vis = 0;
1.14 kristaps 209: } else if (vis + vsz > maxvis)
1.3 kristaps 210: errx(1, "word breaks right margin");
211:
212: /*
213: * Write out the word and a trailing space. Omit the
214: * space if we're the last word in the line.
215: */
216:
217: for ( ; i < p->col; i++) {
1.7 kristaps 218: if (xisspace(p->buf[i]))
1.3 kristaps 219: break;
220: putchar(p->buf[i]);
221: }
222: vis += vsz;
223: if (i < p->col) {
224: putchar(' ');
225: vis++;
226: }
227: }
228:
229: /*
230: * If we're not to right-marginalise it (newline), then instead
231: * pad to the right margin and stay off.
232: */
233:
234: if (p->flags & TERMP_NOBREAK) {
1.14 kristaps 235: if ( ! (p->flags & TERMP_NORPAD))
236: for ( ; vis < maxvis; vis++)
237: putchar(' ');
1.3 kristaps 238: } else
239: putchar('\n');
240:
241: p->col = 0;
242: }
243:
244:
245: void
246: newln(struct termp *p)
247: {
1.1 kristaps 248:
1.3 kristaps 249: /*
250: * A newline only breaks an existing line; it won't assert
251: * vertical space.
252: */
253: p->flags |= TERMP_NOSPACE;
1.12 kristaps 254: if (0 == p->col) {
255: p->flags &= ~TERMP_NOLPAD;
1.3 kristaps 256: return;
1.12 kristaps 257: }
1.3 kristaps 258: flushln(p);
1.11 kristaps 259: p->flags &= ~TERMP_NOLPAD;
1.3 kristaps 260: }
261:
262:
263: void
264: vspace(struct termp *p)
265: {
266:
267: /*
268: * Asserts a vertical space (a full, empty line-break between
269: * lines).
270: */
271: newln(p);
272: putchar('\n');
273: }
274:
275:
276: static void
1.4 kristaps 277: stringa(struct termp *p, const char *s)
278: {
279:
280: /* XXX - speed up if not passing to chara. */
281: for ( ; *s; s++)
282: chara(p, *s);
283: }
284:
285:
286: static void
1.3 kristaps 287: chara(struct termp *p, char c)
288: {
289:
1.16 kristaps 290: /*
291: * Insert a single character into the line-buffer. If the
292: * buffer's space is exceeded, then allocate more space.
293: */
294: if (p->col + 1 >= p->maxcols) {
295: p->buf = realloc(p->buf, p->maxcols * 2);
296: if (NULL == p->buf)
297: err(1, "malloc");
298: p->maxcols *= 2;
299: }
1.3 kristaps 300: p->buf[(p->col)++] = c;
301: }
302:
303:
304: static void
305: style(struct termp *p, enum termstyle esc)
306: {
307:
308: if (p->col + 4 >= p->maxcols)
309: errx(1, "line overrun");
310:
311: p->buf[(p->col)++] = 27;
312: p->buf[(p->col)++] = '[';
313: switch (esc) {
314: case (STYLE_CLEAR):
315: p->buf[(p->col)++] = '0';
316: break;
317: case (STYLE_BOLD):
318: p->buf[(p->col)++] = '1';
319: break;
320: case (STYLE_UNDERLINE):
321: p->buf[(p->col)++] = '4';
322: break;
323: default:
324: abort();
325: /* NOTREACHED */
326: }
327: p->buf[(p->col)++] = 'm';
328: }
329:
330:
331: static void
1.12 kristaps 332: nescape(struct termp *p, const char *word, size_t len)
333: {
334:
335: switch (len) {
1.16 kristaps 336: case (1):
337: if ('q' == word[0])
338: stringa(p, TERMSYM_DQUOTE);
339: break;
1.12 kristaps 340: case (2):
341: if ('r' == word[0] && 'B' == word[1])
1.16 kristaps 342: stringa(p, TERMSYM_RBRACK);
1.12 kristaps 343: else if ('l' == word[0] && 'B' == word[1])
1.16 kristaps 344: stringa(p, TERMSYM_LBRACK);
1.17 kristaps 345: else if ('l' == word[0] && 'q' == word[1])
346: stringa(p, TERMSYM_LDQUOTE);
347: else if ('r' == word[0] && 'q' == word[1])
348: stringa(p, TERMSYM_RDQUOTE);
349: else if ('o' == word[0] && 'q' == word[1])
350: stringa(p, TERMSYM_LSQUOTE);
351: else if ('a' == word[0] && 'q' == word[1])
352: stringa(p, TERMSYM_RSQUOTE);
1.12 kristaps 353: else if ('<' == word[0] && '-' == word[1])
1.16 kristaps 354: stringa(p, TERMSYM_LARROW);
1.12 kristaps 355: else if ('-' == word[0] && '>' == word[1])
1.16 kristaps 356: stringa(p, TERMSYM_RARROW);
1.12 kristaps 357: else if ('b' == word[0] && 'u' == word[1])
1.16 kristaps 358: stringa(p, TERMSYM_BULLET);
359: else if ('<' == word[0] && '=' == word[1])
360: stringa(p, TERMSYM_LE);
361: else if ('>' == word[0] && '=' == word[1])
362: stringa(p, TERMSYM_GE);
1.17 kristaps 363: else if ('=' == word[0] && '=' == word[1])
364: stringa(p, TERMSYM_EQ);
365: else if ('+' == word[0] && '-' == word[1])
366: stringa(p, TERMSYM_PLUSMINUS);
1.16 kristaps 367: else if ('u' == word[0] && 'a' == word[1])
368: stringa(p, TERMSYM_UARROW);
1.17 kristaps 369: else if ('d' == word[0] && 'a' == word[1])
370: stringa(p, TERMSYM_DARROW);
1.16 kristaps 371: else if ('a' == word[0] && 'a' == word[1])
372: stringa(p, TERMSYM_ACUTE);
373: else if ('g' == word[0] && 'a' == word[1])
374: stringa(p, TERMSYM_GRAVE);
1.17 kristaps 375: else if ('!' == word[0] && '=' == word[1])
1.16 kristaps 376: stringa(p, TERMSYM_NEQ);
1.17 kristaps 377: else if ('i' == word[0] && 'f' == word[1])
378: stringa(p, TERMSYM_INF);
379: else if ('n' == word[0] && 'a' == word[1])
380: stringa(p, TERMSYM_NAN);
381: else if ('b' == word[0] && 'a' == word[1])
382: stringa(p, TERMSYM_BAR);
383:
384: /* Deprecated forms. */
385: else if ('B' == word[0] && 'a' == word[1])
386: stringa(p, TERMSYM_BAR);
387: else if ('I' == word[0] && 'f' == word[1])
388: stringa(p, TERMSYM_INF2);
389: else if ('G' == word[0] && 'e' == word[1])
390: stringa(p, TERMSYM_GE);
391: else if ('G' == word[0] && 't' == word[1])
392: stringa(p, TERMSYM_GT);
393: else if ('L' == word[0] && 'e' == word[1])
394: stringa(p, TERMSYM_LE);
395: else if ('L' == word[0] && 'q' == word[1])
396: stringa(p, TERMSYM_LDQUOTE);
1.16 kristaps 397: else if ('L' == word[0] && 't' == word[1])
398: stringa(p, TERMSYM_LT);
1.17 kristaps 399: else if ('N' == word[0] && 'a' == word[1])
400: stringa(p, TERMSYM_NAN);
401: else if ('N' == word[0] && 'e' == word[1])
402: stringa(p, TERMSYM_NEQ);
403: else if ('P' == word[0] && 'i' == word[1])
404: stringa(p, TERMSYM_PI);
1.16 kristaps 405: else if ('P' == word[0] && 'm' == word[1])
406: stringa(p, TERMSYM_PLUSMINUS);
1.17 kristaps 407: else if ('R' == word[0] && 'q' == word[1])
408: stringa(p, TERMSYM_RDQUOTE);
1.12 kristaps 409: break;
410: default:
411: break;
412: }
413: }
414:
415:
416: static void
1.3 kristaps 417: pescape(struct termp *p, const char *word, size_t *i, size_t len)
418: {
1.12 kristaps 419: size_t j;
1.3 kristaps 420:
421: (*i)++;
422: assert(*i < len);
423:
1.16 kristaps 424: /*
425: * Handle an escape sequence. This must manage both groff-style
426: * escapes and mdoc-style escapes.
427: */
428:
1.3 kristaps 429: if ('(' == word[*i]) {
430: /* Two-character escapes. */
431: (*i)++;
432: assert(*i + 1 < len);
1.12 kristaps 433: nescape(p, &word[*i], 2);
1.3 kristaps 434: (*i)++;
435: return;
436:
1.16 kristaps 437: } else if ('*' == word[*i]) {
438: (*i)++;
439: assert(*i < len);
440: switch (word[*i]) {
441: case ('('):
442: (*i)++;
443: assert(*i + 1 < len);
444: nescape(p, &word[*i], 2);
445: (*i)++;
446: return;
447: default:
448: break;
449: }
450: nescape(p, &word[*i], 1);
451: return;
452:
1.3 kristaps 453: } else if ('[' != word[*i]) {
454: /* One-character escapes. */
455: switch (word[*i]) {
456: case ('\\'):
457: /* FALLTHROUGH */
458: case ('\''):
459: /* FALLTHROUGH */
460: case ('`'):
461: /* FALLTHROUGH */
462: case ('-'):
463: /* FALLTHROUGH */
1.13 kristaps 464: case (' '):
465: /* FALLTHROUGH */
1.3 kristaps 466: case ('.'):
467: chara(p, word[*i]);
1.1 kristaps 468: default:
1.3 kristaps 469: break;
470: }
471: return;
472: }
1.12 kristaps 473:
474: (*i)++;
475: for (j = 0; word[*i] && ']' != word[*i]; (*i)++, j++)
476: /* Loop... */ ;
477:
478: nescape(p, &word[*i - j], j);
1.3 kristaps 479: }
480:
481:
482: static void
483: pword(struct termp *p, const char *word, size_t len)
484: {
485: size_t i;
486:
487: /*assert(len > 0);*/ /* Can be, if literal. */
488:
1.16 kristaps 489: /*
490: * Handle pwords, partial words, which may be either a single
491: * word or a phrase that cannot be broken down (such as a
492: * literal string). This handles word styling.
493: */
494:
1.3 kristaps 495: if ( ! (p->flags & TERMP_NOSPACE) &&
496: ! (p->flags & TERMP_LITERAL))
497: chara(p, ' ');
498:
1.13 kristaps 499: if ( ! (p->flags & TERMP_NONOSPACE))
500: p->flags &= ~TERMP_NOSPACE;
1.3 kristaps 501:
1.16 kristaps 502: /*
503: * XXX - if literal and underlining, this will underline the
504: * spaces between literal words.
505: */
506:
1.3 kristaps 507: if (p->flags & TERMP_BOLD)
508: style(p, STYLE_BOLD);
509: if (p->flags & TERMP_UNDERLINE)
510: style(p, STYLE_UNDERLINE);
511:
512: for (i = 0; i < len; i++) {
513: if ('\\' == word[i]) {
514: pescape(p, word, &i, len);
515: continue;
516: }
517: chara(p, word[i]);
518: }
519:
520: if (p->flags & TERMP_BOLD ||
521: p->flags & TERMP_UNDERLINE)
522: style(p, STYLE_CLEAR);
523: }
524:
525:
526: void
527: word(struct termp *p, const char *word)
528: {
529: size_t i, j, len;
530:
1.16 kristaps 531: /*
532: * Break apart a word into tokens. If we're a literal word,
533: * then don't. This doesn't handle zero-length words (there
534: * should be none) and makes sure that pword doesn't get spaces
535: * or nil words unless literal.
536: */
537:
1.3 kristaps 538: if (p->flags & TERMP_LITERAL) {
539: pword(p, word, strlen(word));
540: return;
541: }
542:
543: len = strlen(word);
544: assert(len > 0);
545:
546: if (mdoc_isdelim(word)) {
547: if ( ! (p->flags & TERMP_IGNDELIM))
548: p->flags |= TERMP_NOSPACE;
549: p->flags &= ~TERMP_IGNDELIM;
550: }
551:
552: /* LINTED */
553: for (j = i = 0; i < len; i++) {
1.7 kristaps 554: if ( ! xisspace(word[i])) {
1.3 kristaps 555: j++;
556: continue;
1.1 kristaps 557: }
1.3 kristaps 558: if (0 == j)
559: continue;
560: assert(i >= j);
561: pword(p, &word[i - j], j);
562: j = 0;
563: }
564: if (j > 0) {
565: assert(i >= j);
566: pword(p, &word[i - j], j);
567: }
568: }
569:
570:
571: static void
1.12 kristaps 572: body(struct termp *p, struct termpair *ppair,
573: const struct mdoc_meta *meta,
1.3 kristaps 574: const struct mdoc_node *node)
575: {
576: int dochild;
1.9 kristaps 577: struct termpair pair;
1.3 kristaps 578:
1.16 kristaps 579: /*
580: * This is the main function for printing out nodes. It's
581: * constituted of PRE and POST functions, which correspond to
582: * prefix and infix processing.
583: */
584:
1.3 kristaps 585: /* Pre-processing. */
586:
587: dochild = 1;
1.12 kristaps 588: pair.ppair = ppair;
1.9 kristaps 589: pair.type = 0;
1.11 kristaps 590: pair.offset = pair.rmargin = 0;
1.10 kristaps 591: pair.flag = 0;
1.12 kristaps 592: pair.count = 0;
1.3 kristaps 593:
594: if (MDOC_TEXT != node->type) {
595: if (termacts[node->tok].pre)
1.9 kristaps 596: if ( ! (*termacts[node->tok].pre)(p, &pair, meta, node))
1.3 kristaps 597: dochild = 0;
598: } else /* MDOC_TEXT == node->type */
599: word(p, node->data.text.string);
600:
601: /* Children. */
602:
1.10 kristaps 603: if (TERMPAIR_FLAG & pair.type)
604: p->flags |= pair.flag;
1.9 kristaps 605:
1.3 kristaps 606: if (dochild && node->child)
1.12 kristaps 607: body(p, &pair, meta, node->child);
1.3 kristaps 608:
1.10 kristaps 609: if (TERMPAIR_FLAG & pair.type)
610: p->flags &= ~pair.flag;
1.9 kristaps 611:
1.3 kristaps 612: /* Post-processing. */
613:
614: if (MDOC_TEXT != node->type)
615: if (termacts[node->tok].post)
1.9 kristaps 616: (*termacts[node->tok].post)(p, &pair, meta, node);
1.3 kristaps 617:
618: /* Siblings. */
1.1 kristaps 619:
1.3 kristaps 620: if (node->next)
1.12 kristaps 621: body(p, ppair, meta, node->next);
1.3 kristaps 622: }
623:
624:
625: static void
626: footer(struct termp *p, const struct mdoc_meta *meta)
627: {
628: struct tm *tm;
629: char *buf, *os;
630:
631: if (NULL == (buf = malloc(p->rmargin)))
632: err(1, "malloc");
633: if (NULL == (os = malloc(p->rmargin)))
634: err(1, "malloc");
635:
636: tm = localtime(&meta->date);
637:
1.7 kristaps 638: #ifdef __OpenBSD__
639: if (NULL == strftime(buf, p->rmargin, "%B %d, %Y", tm))
640: #else
1.3 kristaps 641: if (0 == strftime(buf, p->rmargin, "%B %d, %Y", tm))
642: #endif
643: err(1, "strftime");
644:
1.15 kristaps 645: (void)strlcpy(os, meta->os, p->rmargin);
1.3 kristaps 646:
1.16 kristaps 647: /*
648: * This is /slightly/ different from regular groff output
649: * because we don't have page numbers. Print the following:
650: *
651: * OS MDOCDATE
652: */
653:
1.15 kristaps 654: vspace(p);
1.3 kristaps 655:
1.15 kristaps 656: p->flags |= TERMP_NOSPACE | TERMP_NOBREAK;
657: p->rmargin = p->maxrmargin - strlen(buf);
658: p->offset = 0;
1.3 kristaps 659:
1.15 kristaps 660: word(p, os);
661: flushln(p);
1.3 kristaps 662:
1.15 kristaps 663: p->flags |= TERMP_NOLPAD | TERMP_NOSPACE;
664: p->offset = p->rmargin;
665: p->rmargin = p->maxrmargin;
666: p->flags &= ~TERMP_NOBREAK;
667:
668: word(p, buf);
669: flushln(p);
1.1 kristaps 670:
1.3 kristaps 671: free(buf);
672: free(os);
1.1 kristaps 673: }
674:
675:
1.3 kristaps 676: static void
677: header(struct termp *p, const struct mdoc_meta *meta)
678: {
1.18 ! kristaps 679: char *buf, *title, *bufp, *vbuf;
1.13 kristaps 680: const char *pp;
1.18 ! kristaps 681: struct utsname uts;
! 682:
! 683: p->rmargin = p->maxrmargin;
! 684: p->offset = 0;
1.3 kristaps 685:
686: if (NULL == (buf = malloc(p->rmargin)))
687: err(1, "malloc");
688: if (NULL == (title = malloc(p->rmargin)))
689: err(1, "malloc");
1.18 ! kristaps 690: if (NULL == (vbuf = malloc(p->rmargin)))
! 691: err(1, "malloc");
1.3 kristaps 692:
1.18 ! kristaps 693: if (NULL == (pp = mdoc_vol2a(meta->vol))) {
1.3 kristaps 694: switch (meta->msec) {
695: case (MSEC_1):
696: /* FALLTHROUGH */
697: case (MSEC_6):
698: /* FALLTHROUGH */
699: case (MSEC_7):
700: pp = mdoc_vol2a(VOL_URM);
701: break;
702: case (MSEC_8):
703: pp = mdoc_vol2a(VOL_SMM);
704: break;
705: case (MSEC_2):
706: /* FALLTHROUGH */
707: case (MSEC_3):
708: /* FALLTHROUGH */
709: case (MSEC_4):
710: /* FALLTHROUGH */
711: case (MSEC_5):
712: pp = mdoc_vol2a(VOL_PRM);
713: break;
714: case (MSEC_9):
715: pp = mdoc_vol2a(VOL_KM);
716: break;
717: default:
718: break;
719: }
1.18 ! kristaps 720: }
! 721: vbuf[0] = 0;
! 722:
! 723: if (pp) {
! 724: if (-1 == uname(&uts))
! 725: err(1, "uname");
! 726: (void)strlcat(vbuf, uts.sysname, p->rmargin);
! 727: (void)strlcat(vbuf, " ", p->rmargin);
! 728: } else if (NULL == (pp = mdoc_msec2a(meta->msec)))
! 729: pp = mdoc_msec2a(MSEC_local);
! 730:
! 731: (void)strlcat(vbuf, pp, p->rmargin);
1.3 kristaps 732:
1.16 kristaps 733: /*
734: * The header is strange. It has three components, which are
735: * really two with the first duplicated. It goes like this:
736: *
737: * IDENTIFIER TITLE IDENTIFIER
738: *
739: * The IDENTIFIER is NAME(SECTION), which is the command-name
740: * (if given, or "unknown" if not) followed by the manual page
741: * section. These are given in `Dt'. The TITLE is a free-form
742: * string depending on the manual volume. If not specified, it
743: * switches on the manual section.
744: */
745:
1.13 kristaps 746: if (mdoc_arch2a(meta->arch))
1.16 kristaps 747: (void)snprintf(buf, p->rmargin, "%s (%s)",
1.18 ! kristaps 748: vbuf, mdoc_arch2a(meta->arch));
1.13 kristaps 749: else
1.18 ! kristaps 750: (void)strlcpy(buf, vbuf, p->rmargin);
1.13 kristaps 751:
752: pp = mdoc_msec2a(meta->msec);
753:
754: (void)snprintf(title, p->rmargin, "%s(%s)",
755: meta->title, pp ? pp : "");
756:
1.16 kristaps 757: for (bufp = title; *bufp; bufp++)
758: *bufp = toupper(*bufp);
759:
1.13 kristaps 760: p->offset = 0;
761: p->rmargin = (p->maxrmargin - strlen(buf)) / 2;
1.15 kristaps 762: p->flags |= TERMP_NOBREAK | TERMP_NOSPACE;
1.3 kristaps 763:
1.13 kristaps 764: word(p, title);
765: flushln(p);
1.3 kristaps 766:
1.15 kristaps 767: p->flags |= TERMP_NOLPAD | TERMP_NOSPACE;
1.13 kristaps 768: p->offset = p->rmargin;
1.15 kristaps 769: p->rmargin = p->maxrmargin - strlen(title);
1.3 kristaps 770:
1.13 kristaps 771: word(p, buf);
772: flushln(p);
1.3 kristaps 773:
1.13 kristaps 774: p->offset = p->rmargin;
775: p->rmargin = p->maxrmargin;
776: p->flags &= ~TERMP_NOBREAK;
1.15 kristaps 777: p->flags |= TERMP_NOLPAD | TERMP_NOSPACE;
1.3 kristaps 778:
1.13 kristaps 779: word(p, title);
780: flushln(p);
1.3 kristaps 781:
1.13 kristaps 782: p->rmargin = p->maxrmargin;
783: p->offset = 0;
784: p->flags &= ~TERMP_NOSPACE;
1.3 kristaps 785:
786: free(title);
1.18 ! kristaps 787: free(vbuf);
1.3 kristaps 788: free(buf);
789: }
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