Annotation of mandoc/man_validate.c, Revision 1.156
1.156 ! schwarze 1: /* $Id: man_validate.c,v 1.155 2020/10/30 13:24:33 schwarze Exp $ */
1.1 kristaps 2: /*
1.151 schwarze 3: * Copyright (c) 2010, 2012-2020 Ingo Schwarze <schwarze@openbsd.org>
1.63 schwarze 4: * Copyright (c) 2008, 2009, 2010, 2011 Kristaps Dzonsons <kristaps@bsd.lv>
1.1 kristaps 5: *
6: * Permission to use, copy, modify, and distribute this software for any
1.8 kristaps 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: *
1.114 schwarze 10: * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHORS DISCLAIM ALL WARRANTIES
1.8 kristaps 11: * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
1.114 schwarze 12: * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR
1.8 kristaps 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.
1.151 schwarze 17: *
18: * Validation module for man(7) syntax trees used by mandoc(1).
1.1 kristaps 19: */
1.28 kristaps 20: #include "config.h"
21:
1.1 kristaps 22: #include <sys/types.h>
23:
24: #include <assert.h>
25: #include <ctype.h>
1.16 kristaps 26: #include <errno.h>
27: #include <limits.h>
1.1 kristaps 28: #include <stdarg.h>
1.140 schwarze 29: #include <stdio.h>
1.1 kristaps 30: #include <stdlib.h>
1.46 kristaps 31: #include <string.h>
1.50 kristaps 32: #include <time.h>
1.1 kristaps 33:
1.114 schwarze 34: #include "mandoc_aux.h"
35: #include "mandoc.h"
36: #include "roff.h"
1.66 kristaps 37: #include "man.h"
1.114 schwarze 38: #include "libmandoc.h"
1.118 schwarze 39: #include "roff_int.h"
1.1 kristaps 40: #include "libman.h"
1.153 schwarze 41: #include "tag.h"
1.1 kristaps 42:
1.117 schwarze 43: #define CHKARGS struct roff_man *man, struct roff_node *n
1.1 kristaps 44:
1.107 schwarze 45: typedef void (*v_check)(CHKARGS);
1.1 kristaps 46:
1.148 schwarze 47: static void check_abort(CHKARGS) __attribute__((__noreturn__));
1.107 schwarze 48: static void check_par(CHKARGS);
49: static void check_part(CHKARGS);
50: static void check_root(CHKARGS);
1.151 schwarze 51: static void check_tag(struct roff_node *, struct roff_node *);
1.107 schwarze 52: static void check_text(CHKARGS);
53:
54: static void post_AT(CHKARGS);
1.145 schwarze 55: static void post_EE(CHKARGS);
56: static void post_EX(CHKARGS);
1.107 schwarze 57: static void post_IP(CHKARGS);
1.113 schwarze 58: static void post_OP(CHKARGS);
1.139 schwarze 59: static void post_SH(CHKARGS);
1.107 schwarze 60: static void post_TH(CHKARGS);
1.151 schwarze 61: static void post_TP(CHKARGS);
1.107 schwarze 62: static void post_UC(CHKARGS);
63: static void post_UR(CHKARGS);
1.129 schwarze 64: static void post_in(CHKARGS);
1.51 kristaps 65:
1.135 schwarze 66: static const v_check man_valids[MAN_MAX - MAN_TH] = {
1.104 schwarze 67: post_TH, /* TH */
1.139 schwarze 68: post_SH, /* SH */
69: post_SH, /* SS */
1.151 schwarze 70: post_TP, /* TP */
71: post_TP, /* TQ */
1.138 schwarze 72: check_abort,/* LP */
1.104 schwarze 73: check_par, /* PP */
1.138 schwarze 74: check_abort,/* P */
1.104 schwarze 75: post_IP, /* IP */
76: NULL, /* HP */
77: NULL, /* SM */
78: NULL, /* SB */
79: NULL, /* BI */
80: NULL, /* IB */
81: NULL, /* BR */
82: NULL, /* RB */
83: NULL, /* R */
84: NULL, /* B */
85: NULL, /* I */
86: NULL, /* IR */
87: NULL, /* RI */
88: NULL, /* RE */
89: check_part, /* RS */
90: NULL, /* DT */
91: post_UC, /* UC */
1.112 schwarze 92: NULL, /* PD */
1.104 schwarze 93: post_AT, /* AT */
1.129 schwarze 94: post_in, /* in */
1.137 schwarze 95: NULL, /* SY */
96: NULL, /* YS */
1.113 schwarze 97: post_OP, /* OP */
1.145 schwarze 98: post_EX, /* EX */
99: post_EE, /* EE */
1.104 schwarze 100: post_UR, /* UR */
101: NULL, /* UE */
1.132 schwarze 102: post_UR, /* MT */
103: NULL, /* ME */
1.1 kristaps 104: };
105:
106:
1.138 schwarze 107: /* Validate the subtree rooted at man->last. */
1.107 schwarze 108: void
1.143 schwarze 109: man_validate(struct roff_man *man)
1.1 kristaps 110: {
1.115 schwarze 111: struct roff_node *n;
1.123 schwarze 112: const v_check *cp;
1.1 kristaps 113:
1.138 schwarze 114: /*
115: * Translate obsolete macros such that later code
116: * does not need to look for them.
117: */
118:
1.104 schwarze 119: n = man->last;
1.138 schwarze 120: switch (n->tok) {
121: case MAN_LP:
122: case MAN_P:
123: n->tok = MAN_PP;
124: break;
125: default:
126: break;
127: }
128:
129: /*
130: * Iterate over all children, recursing into each one
131: * in turn, depth-first.
132: */
133:
1.121 schwarze 134: man->last = man->last->child;
135: while (man->last != NULL) {
1.143 schwarze 136: man_validate(man);
1.121 schwarze 137: if (man->last == n)
138: man->last = man->last->child;
139: else
140: man->last = man->last->next;
141: }
1.1 kristaps 142:
1.138 schwarze 143: /* Finally validate the macro itself. */
144:
1.121 schwarze 145: man->last = n;
146: man->next = ROFF_NEXT_SIBLING;
1.104 schwarze 147: switch (n->type) {
1.114 schwarze 148: case ROFFT_TEXT:
1.107 schwarze 149: check_text(man, n);
150: break;
1.114 schwarze 151: case ROFFT_ROOT:
1.107 schwarze 152: check_root(man, n);
153: break;
1.134 schwarze 154: case ROFFT_COMMENT:
1.114 schwarze 155: case ROFFT_EQN:
156: case ROFFT_TBL:
1.107 schwarze 157: break;
1.1 kristaps 158: default:
1.124 schwarze 159: if (n->tok < ROFF_MAX) {
1.139 schwarze 160: roff_validate(man);
1.124 schwarze 161: break;
162: }
163: assert(n->tok >= MAN_TH && n->tok < MAN_MAX);
1.135 schwarze 164: cp = man_valids + (n->tok - MAN_TH);
1.107 schwarze 165: if (*cp)
166: (*cp)(man, n);
1.121 schwarze 167: if (man->last == n)
1.146 schwarze 168: n->flags |= NODE_VALID;
1.107 schwarze 169: break;
1.1 kristaps 170: }
171: }
172:
1.107 schwarze 173: static void
1.91 schwarze 174: check_root(CHKARGS)
1.14 kristaps 175: {
1.101 schwarze 176: assert((man->flags & (MAN_BLINE | MAN_ELINE)) == 0);
1.17 kristaps 177:
1.134 schwarze 178: if (n->last == NULL || n->last->type == ROFFT_COMMENT)
1.141 schwarze 179: mandoc_msg(MANDOCERR_DOC_EMPTY, n->line, n->pos, NULL);
1.93 schwarze 180: else
181: man->meta.hasbody = 1;
182:
183: if (NULL == man->meta.title) {
1.141 schwarze 184: mandoc_msg(MANDOCERR_TH_NOTITLE, n->line, n->pos, NULL);
1.54 kristaps 185:
1.34 kristaps 186: /*
187: * If a title hasn't been set, do so now (by
188: * implication, date and section also aren't set).
189: */
1.54 kristaps 190:
1.105 schwarze 191: man->meta.title = mandoc_strdup("");
192: man->meta.msec = mandoc_strdup("");
1.150 schwarze 193: man->meta.date = mandoc_normdate(NULL, NULL);
1.34 kristaps 194: }
1.130 schwarze 195:
196: if (man->meta.os_e &&
197: (man->meta.rcsids & (1 << man->meta.os_e)) == 0)
1.141 schwarze 198: mandoc_msg(MANDOCERR_RCS_MISSING, 0, 0,
1.131 schwarze 199: man->meta.os_e == MANDOC_OS_OPENBSD ?
200: "(OpenBSD)" : "(NetBSD)");
1.75 kristaps 201: }
202:
1.148 schwarze 203: static void
1.138 schwarze 204: check_abort(CHKARGS)
205: {
206: abort();
207: }
208:
1.151 schwarze 209: /*
210: * Skip leading whitespace, dashes, backslashes, and font escapes,
211: * then create a tag if the first following byte is a letter.
212: * Priority is high unless whitespace is present.
213: */
214: static void
215: check_tag(struct roff_node *n, struct roff_node *nt)
216: {
217: const char *cp, *arg;
218: int prio, sz;
219:
220: if (nt == NULL || nt->type != ROFFT_TEXT)
221: return;
222:
223: cp = nt->string;
224: prio = TAG_STRONG;
225: for (;;) {
226: switch (*cp) {
227: case ' ':
228: case '\t':
229: prio = TAG_WEAK;
230: /* FALLTHROUGH */
231: case '-':
232: cp++;
233: break;
234: case '\\':
235: cp++;
236: switch (mandoc_escape(&cp, &arg, &sz)) {
237: case ESCAPE_FONT:
238: case ESCAPE_FONTBOLD:
239: case ESCAPE_FONTITALIC:
240: case ESCAPE_FONTBI:
241: case ESCAPE_FONTROMAN:
1.156 ! schwarze 242: case ESCAPE_FONTCR:
! 243: case ESCAPE_FONTCB:
! 244: case ESCAPE_FONTCI:
1.151 schwarze 245: case ESCAPE_FONTPREV:
246: case ESCAPE_IGNORE:
247: break;
248: case ESCAPE_SPECIAL:
249: if (sz != 1)
250: return;
251: switch (*arg) {
252: case '-':
253: case 'e':
254: break;
255: default:
256: return;
257: }
258: break;
259: default:
260: return;
261: }
262: break;
263: default:
264: if (isalpha((unsigned char)*cp))
265: tag_put(cp, prio, n);
266: return;
267: }
268: }
269: }
270:
1.138 schwarze 271: static void
1.75 kristaps 272: check_text(CHKARGS)
273: {
274: char *cp, *p;
275:
1.145 schwarze 276: if (n->flags & NODE_NOFILL)
1.107 schwarze 277: return;
1.76 schwarze 278:
279: cp = n->string;
280: for (p = cp; NULL != (p = strchr(p, '\t')); p++)
1.141 schwarze 281: mandoc_msg(MANDOCERR_FI_TAB,
282: n->line, n->pos + (int)(p - cp), NULL);
1.145 schwarze 283: }
284:
285: static void
286: post_EE(CHKARGS)
287: {
288: if ((n->flags & NODE_NOFILL) == 0)
289: mandoc_msg(MANDOCERR_FI_SKIP, n->line, n->pos, "EE");
290: }
291:
292: static void
293: post_EX(CHKARGS)
294: {
295: if (n->flags & NODE_NOFILL)
296: mandoc_msg(MANDOCERR_NF_SKIP, n->line, n->pos, "EX");
1.1 kristaps 297: }
298:
1.113 schwarze 299: static void
300: post_OP(CHKARGS)
301: {
302:
1.122 schwarze 303: if (n->child == NULL)
1.141 schwarze 304: mandoc_msg(MANDOCERR_OP_EMPTY, n->line, n->pos, "OP");
1.122 schwarze 305: else if (n->child->next != NULL && n->child->next->next != NULL) {
1.113 schwarze 306: n = n->child->next->next;
1.141 schwarze 307: mandoc_msg(MANDOCERR_ARG_EXCESS,
1.113 schwarze 308: n->line, n->pos, "OP ... %s", n->string);
309: }
1.1 kristaps 310: }
311:
1.107 schwarze 312: static void
1.139 schwarze 313: post_SH(CHKARGS)
314: {
315: struct roff_node *nc;
1.152 schwarze 316: char *cp, *tag;
1.139 schwarze 317:
1.152 schwarze 318: nc = n->child;
319: switch (n->type) {
320: case ROFFT_HEAD:
321: tag = NULL;
322: deroff(&tag, n);
323: if (tag != NULL) {
324: for (cp = tag; *cp != '\0'; cp++)
325: if (*cp == ' ')
326: *cp = '_';
327: if (nc != NULL && nc->type == ROFFT_TEXT &&
328: strcmp(nc->string, tag) == 0)
1.155 schwarze 329: tag_put(NULL, TAG_STRONG, n);
1.152 schwarze 330: else
331: tag_put(tag, TAG_FALLBACK, n);
332: free(tag);
333: }
334: return;
335: case ROFFT_BODY:
336: if (nc != NULL)
337: break;
1.139 schwarze 338: return;
1.152 schwarze 339: default:
340: return;
341: }
1.139 schwarze 342:
343: if (nc->tok == MAN_PP && nc->body->child != NULL) {
344: while (nc->body->last != NULL) {
345: man->next = ROFF_NEXT_CHILD;
346: roff_node_relink(man, nc->body->last);
347: man->last = n;
348: }
349: }
350:
351: if (nc->tok == MAN_PP || nc->tok == ROFF_sp || nc->tok == ROFF_br) {
1.141 schwarze 352: mandoc_msg(MANDOCERR_PAR_SKIP, nc->line, nc->pos,
353: "%s after %s", roff_name[nc->tok], roff_name[n->tok]);
1.139 schwarze 354: roff_node_delete(man, nc);
355: }
356:
357: /*
358: * Trailing PP is empty, so it is deleted by check_par().
359: * Trailing sp is significant.
360: */
361:
362: if ((nc = n->last) != NULL && nc->tok == ROFF_br) {
1.141 schwarze 363: mandoc_msg(MANDOCERR_PAR_SKIP,
1.139 schwarze 364: nc->line, nc->pos, "%s at the end of %s",
365: roff_name[nc->tok], roff_name[n->tok]);
366: roff_node_delete(man, nc);
367: }
368: }
369:
370: static void
1.104 schwarze 371: post_UR(CHKARGS)
1.86 schwarze 372: {
1.114 schwarze 373: if (n->type == ROFFT_HEAD && n->child == NULL)
1.141 schwarze 374: mandoc_msg(MANDOCERR_UR_NOHEAD, n->line, n->pos,
375: "%s", roff_name[n->tok]);
1.107 schwarze 376: check_part(man, n);
1.55 kristaps 377: }
1.16 kristaps 378:
1.107 schwarze 379: static void
1.23 kristaps 380: check_part(CHKARGS)
381: {
382:
1.114 schwarze 383: if (n->type == ROFFT_BODY && n->child == NULL)
1.141 schwarze 384: mandoc_msg(MANDOCERR_BLK_EMPTY, n->line, n->pos,
385: "%s", roff_name[n->tok]);
1.23 kristaps 386: }
387:
1.107 schwarze 388: static void
1.17 kristaps 389: check_par(CHKARGS)
390: {
391:
1.59 kristaps 392: switch (n->type) {
1.114 schwarze 393: case ROFFT_BLOCK:
1.122 schwarze 394: if (n->body->child == NULL)
1.118 schwarze 395: roff_node_delete(man, n);
1.59 kristaps 396: break;
1.114 schwarze 397: case ROFFT_BODY:
1.139 schwarze 398: if (n->child != NULL &&
399: (n->child->tok == ROFF_sp || n->child->tok == ROFF_br)) {
1.141 schwarze 400: mandoc_msg(MANDOCERR_PAR_SKIP,
401: n->child->line, n->child->pos,
1.139 schwarze 402: "%s after %s", roff_name[n->child->tok],
403: roff_name[n->tok]);
404: roff_node_delete(man, n->child);
405: }
1.122 schwarze 406: if (n->child == NULL)
1.141 schwarze 407: mandoc_msg(MANDOCERR_PAR_SKIP, n->line, n->pos,
1.123 schwarze 408: "%s empty", roff_name[n->tok]);
1.59 kristaps 409: break;
1.114 schwarze 410: case ROFFT_HEAD:
1.122 schwarze 411: if (n->child != NULL)
1.141 schwarze 412: mandoc_msg(MANDOCERR_ARG_SKIP,
413: n->line, n->pos, "%s %s%s",
1.123 schwarze 414: roff_name[n->tok], n->child->string,
1.122 schwarze 415: n->child->next != NULL ? " ..." : "");
1.59 kristaps 416: break;
417: default:
418: break;
419: }
1.17 kristaps 420: }
421:
1.107 schwarze 422: static void
1.83 schwarze 423: post_IP(CHKARGS)
424: {
425: switch (n->type) {
1.114 schwarze 426: case ROFFT_BLOCK:
1.122 schwarze 427: if (n->head->child == NULL && n->body->child == NULL)
1.118 schwarze 428: roff_node_delete(man, n);
1.83 schwarze 429: break;
1.151 schwarze 430: case ROFFT_HEAD:
431: check_tag(n, n->child);
432: break;
1.114 schwarze 433: case ROFFT_BODY:
1.122 schwarze 434: if (n->parent->head->child == NULL && n->child == NULL)
1.141 schwarze 435: mandoc_msg(MANDOCERR_PAR_SKIP, n->line, n->pos,
1.123 schwarze 436: "%s empty", roff_name[n->tok]);
1.83 schwarze 437: break;
438: default:
439: break;
440: }
1.151 schwarze 441: }
442:
443: /*
444: * The first next-line element in the head is the tag.
445: * If that's a font macro, use its first child instead.
446: */
447: static void
448: post_TP(CHKARGS)
449: {
450: struct roff_node *nt;
451:
452: if (n->type != ROFFT_HEAD || (nt = n->child) == NULL)
453: return;
454:
455: while ((nt->flags & NODE_LINE) == 0)
456: if ((nt = nt->next) == NULL)
457: return;
458:
459: switch (nt->tok) {
460: case MAN_B:
461: case MAN_BI:
462: case MAN_BR:
463: case MAN_I:
464: case MAN_IB:
465: case MAN_IR:
466: nt = nt->child;
467: break;
468: default:
469: break;
470: }
471: check_tag(n, nt);
1.83 schwarze 472: }
1.17 kristaps 473:
1.107 schwarze 474: static void
1.51 kristaps 475: post_TH(CHKARGS)
476: {
1.115 schwarze 477: struct roff_node *nb;
1.60 schwarze 478: const char *p;
1.51 kristaps 479:
1.85 schwarze 480: free(man->meta.title);
481: free(man->meta.vol);
1.116 schwarze 482: free(man->meta.os);
1.85 schwarze 483: free(man->meta.msec);
484: free(man->meta.date);
1.51 kristaps 485:
1.85 schwarze 486: man->meta.title = man->meta.vol = man->meta.date =
1.116 schwarze 487: man->meta.msec = man->meta.os = NULL;
1.51 kristaps 488:
1.92 schwarze 489: nb = n;
490:
1.116 schwarze 491: /* ->TITLE<- MSEC DATE OS VOL */
1.51 kristaps 492:
493: n = n->child;
1.149 schwarze 494: if (n != NULL && n->string != NULL) {
495: for (p = n->string; *p != '\0'; p++) {
1.60 schwarze 496: /* Only warn about this once... */
1.91 schwarze 497: if (isalpha((unsigned char)*p) &&
498: ! isupper((unsigned char)*p)) {
1.141 schwarze 499: mandoc_msg(MANDOCERR_TITLE_CASE, n->line,
500: n->pos + (int)(p - n->string),
1.102 schwarze 501: "TH %s", n->string);
1.60 schwarze 502: break;
503: }
504: }
1.85 schwarze 505: man->meta.title = mandoc_strdup(n->string);
1.105 schwarze 506: } else {
1.85 schwarze 507: man->meta.title = mandoc_strdup("");
1.141 schwarze 508: mandoc_msg(MANDOCERR_TH_NOTITLE, nb->line, nb->pos, "TH");
1.105 schwarze 509: }
1.51 kristaps 510:
1.116 schwarze 511: /* TITLE ->MSEC<- DATE OS VOL */
1.51 kristaps 512:
1.149 schwarze 513: if (n != NULL)
1.60 schwarze 514: n = n->next;
1.154 schwarze 515: if (n != NULL && n->string != NULL) {
1.85 schwarze 516: man->meta.msec = mandoc_strdup(n->string);
1.154 schwarze 517: if (man->filesec != '\0' &&
518: man->filesec != *n->string &&
519: *n->string >= '1' && *n->string <= '9')
520: mandoc_msg(MANDOCERR_MSEC_FILE, n->line, n->pos,
521: "*.%c vs TH ... %c", man->filesec, *n->string);
522: } else {
1.85 schwarze 523: man->meta.msec = mandoc_strdup("");
1.141 schwarze 524: mandoc_msg(MANDOCERR_MSEC_MISSING,
1.105 schwarze 525: nb->line, nb->pos, "TH %s", man->meta.title);
526: }
1.51 kristaps 527:
1.116 schwarze 528: /* TITLE MSEC ->DATE<- OS VOL */
1.51 kristaps 529:
1.149 schwarze 530: if (n != NULL)
1.60 schwarze 531: n = n->next;
1.150 schwarze 532: if (man->quick && n != NULL)
1.85 schwarze 533: man->meta.date = mandoc_strdup("");
1.150 schwarze 534: else
535: man->meta.date = mandoc_normdate(n, nb);
1.51 kristaps 536:
1.116 schwarze 537: /* TITLE MSEC DATE ->OS<- VOL */
1.51 kristaps 538:
539: if (n && (n = n->next))
1.116 schwarze 540: man->meta.os = mandoc_strdup(n->string);
1.131 schwarze 541: else if (man->os_s != NULL)
542: man->meta.os = mandoc_strdup(man->os_s);
543: if (man->meta.os_e == MANDOC_OS_OTHER && man->meta.os != NULL) {
544: if (strstr(man->meta.os, "OpenBSD") != NULL)
545: man->meta.os_e = MANDOC_OS_OPENBSD;
546: else if (strstr(man->meta.os, "NetBSD") != NULL)
547: man->meta.os_e = MANDOC_OS_NETBSD;
548: }
1.51 kristaps 549:
1.116 schwarze 550: /* TITLE MSEC DATE OS ->VOL<- */
1.79 schwarze 551: /* If missing, use the default VOL name for MSEC. */
1.51 kristaps 552:
553: if (n && (n = n->next))
1.85 schwarze 554: man->meta.vol = mandoc_strdup(n->string);
555: else if ('\0' != man->meta.msec[0] &&
556: (NULL != (p = mandoc_a2msec(man->meta.msec))))
557: man->meta.vol = mandoc_strdup(p);
1.113 schwarze 558:
559: if (n != NULL && (n = n->next) != NULL)
1.141 schwarze 560: mandoc_msg(MANDOCERR_ARG_EXCESS,
1.113 schwarze 561: n->line, n->pos, "TH ... %s", n->string);
1.51 kristaps 562:
563: /*
564: * Remove the `TH' node after we've processed it for our
565: * meta-data.
566: */
1.118 schwarze 567: roff_node_delete(man, man->last);
1.51 kristaps 568: }
569:
1.107 schwarze 570: static void
1.51 kristaps 571: post_UC(CHKARGS)
572: {
573: static const char * const bsd_versions[] = {
574: "3rd Berkeley Distribution",
575: "4th Berkeley Distribution",
576: "4.2 Berkeley Distribution",
577: "4.3 Berkeley Distribution",
578: "4.4 Berkeley Distribution",
579: };
580:
581: const char *p, *s;
582:
583: n = n->child;
584:
1.114 schwarze 585: if (n == NULL || n->type != ROFFT_TEXT)
1.51 kristaps 586: p = bsd_versions[0];
587: else {
588: s = n->string;
589: if (0 == strcmp(s, "3"))
590: p = bsd_versions[0];
591: else if (0 == strcmp(s, "4"))
592: p = bsd_versions[1];
593: else if (0 == strcmp(s, "5"))
594: p = bsd_versions[2];
595: else if (0 == strcmp(s, "6"))
596: p = bsd_versions[3];
597: else if (0 == strcmp(s, "7"))
598: p = bsd_versions[4];
599: else
600: p = bsd_versions[0];
601: }
602:
1.116 schwarze 603: free(man->meta.os);
604: man->meta.os = mandoc_strdup(p);
1.51 kristaps 605: }
606:
1.107 schwarze 607: static void
1.51 kristaps 608: post_AT(CHKARGS)
609: {
610: static const char * const unix_versions[] = {
611: "7th Edition",
612: "System III",
613: "System V",
614: "System V Release 2",
615: };
616:
1.115 schwarze 617: struct roff_node *nn;
1.51 kristaps 618: const char *p, *s;
619:
620: n = n->child;
621:
1.114 schwarze 622: if (n == NULL || n->type != ROFFT_TEXT)
1.51 kristaps 623: p = unix_versions[0];
624: else {
625: s = n->string;
626: if (0 == strcmp(s, "3"))
627: p = unix_versions[0];
628: else if (0 == strcmp(s, "4"))
629: p = unix_versions[1];
630: else if (0 == strcmp(s, "5")) {
631: nn = n->next;
1.114 schwarze 632: if (nn != NULL &&
633: nn->type == ROFFT_TEXT &&
634: nn->string[0] != '\0')
1.51 kristaps 635: p = unix_versions[3];
636: else
637: p = unix_versions[2];
638: } else
639: p = unix_versions[0];
640: }
641:
1.116 schwarze 642: free(man->meta.os);
643: man->meta.os = mandoc_strdup(p);
1.129 schwarze 644: }
645:
646: static void
647: post_in(CHKARGS)
648: {
649: char *s;
650:
651: if (n->parent->tok != MAN_TP ||
652: n->parent->type != ROFFT_HEAD ||
653: n->child == NULL ||
654: *n->child->string == '+' ||
655: *n->child->string == '-')
656: return;
657: mandoc_asprintf(&s, "+%s", n->child->string);
658: free(n->child->string);
659: n->child->string = s;
1.51 kristaps 660: }
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