Annotation of mandoc/man_validate.c, Revision 1.158
1.158 ! schwarze 1: /* $Id: man_validate.c,v 1.157 2022/08/02 12:02:28 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:
1.107 schwarze 47: static void check_par(CHKARGS);
48: static void check_part(CHKARGS);
49: static void check_root(CHKARGS);
1.151 schwarze 50: static void check_tag(struct roff_node *, struct roff_node *);
1.107 schwarze 51: static void check_text(CHKARGS);
52:
53: static void post_AT(CHKARGS);
1.145 schwarze 54: static void post_EE(CHKARGS);
55: static void post_EX(CHKARGS);
1.107 schwarze 56: static void post_IP(CHKARGS);
1.113 schwarze 57: static void post_OP(CHKARGS);
1.139 schwarze 58: static void post_SH(CHKARGS);
1.107 schwarze 59: static void post_TH(CHKARGS);
1.151 schwarze 60: static void post_TP(CHKARGS);
1.107 schwarze 61: static void post_UC(CHKARGS);
62: static void post_UR(CHKARGS);
1.129 schwarze 63: static void post_in(CHKARGS);
1.51 kristaps 64:
1.135 schwarze 65: static const v_check man_valids[MAN_MAX - MAN_TH] = {
1.104 schwarze 66: post_TH, /* TH */
1.139 schwarze 67: post_SH, /* SH */
68: post_SH, /* SS */
1.151 schwarze 69: post_TP, /* TP */
70: post_TP, /* TQ */
1.158 ! schwarze 71: check_par, /* LP */
1.104 schwarze 72: check_par, /* PP */
1.158 ! schwarze 73: check_par, /* P */
1.104 schwarze 74: post_IP, /* IP */
75: NULL, /* HP */
76: NULL, /* SM */
77: NULL, /* SB */
78: NULL, /* BI */
79: NULL, /* IB */
80: NULL, /* BR */
81: NULL, /* RB */
82: NULL, /* R */
83: NULL, /* B */
84: NULL, /* I */
85: NULL, /* IR */
86: NULL, /* RI */
87: NULL, /* RE */
88: check_part, /* RS */
89: NULL, /* DT */
90: post_UC, /* UC */
1.112 schwarze 91: NULL, /* PD */
1.104 schwarze 92: post_AT, /* AT */
1.129 schwarze 93: post_in, /* in */
1.137 schwarze 94: NULL, /* SY */
95: NULL, /* YS */
1.113 schwarze 96: post_OP, /* OP */
1.145 schwarze 97: post_EX, /* EX */
98: post_EE, /* EE */
1.104 schwarze 99: post_UR, /* UR */
100: NULL, /* UE */
1.132 schwarze 101: post_UR, /* MT */
102: NULL, /* ME */
1.1 kristaps 103: };
104:
105:
1.138 schwarze 106: /* Validate the subtree rooted at man->last. */
1.107 schwarze 107: void
1.143 schwarze 108: man_validate(struct roff_man *man)
1.1 kristaps 109: {
1.115 schwarze 110: struct roff_node *n;
1.123 schwarze 111: const v_check *cp;
1.1 kristaps 112:
1.138 schwarze 113: /*
114: * Iterate over all children, recursing into each one
115: * in turn, depth-first.
116: */
117:
1.158 ! schwarze 118: n = man->last;
1.121 schwarze 119: man->last = man->last->child;
120: while (man->last != NULL) {
1.143 schwarze 121: man_validate(man);
1.121 schwarze 122: if (man->last == n)
123: man->last = man->last->child;
124: else
125: man->last = man->last->next;
126: }
1.1 kristaps 127:
1.138 schwarze 128: /* Finally validate the macro itself. */
129:
1.121 schwarze 130: man->last = n;
131: man->next = ROFF_NEXT_SIBLING;
1.104 schwarze 132: switch (n->type) {
1.114 schwarze 133: case ROFFT_TEXT:
1.107 schwarze 134: check_text(man, n);
135: break;
1.114 schwarze 136: case ROFFT_ROOT:
1.107 schwarze 137: check_root(man, n);
138: break;
1.134 schwarze 139: case ROFFT_COMMENT:
1.114 schwarze 140: case ROFFT_EQN:
141: case ROFFT_TBL:
1.107 schwarze 142: break;
1.1 kristaps 143: default:
1.124 schwarze 144: if (n->tok < ROFF_MAX) {
1.139 schwarze 145: roff_validate(man);
1.124 schwarze 146: break;
147: }
148: assert(n->tok >= MAN_TH && n->tok < MAN_MAX);
1.135 schwarze 149: cp = man_valids + (n->tok - MAN_TH);
1.107 schwarze 150: if (*cp)
151: (*cp)(man, n);
1.121 schwarze 152: if (man->last == n)
1.146 schwarze 153: n->flags |= NODE_VALID;
1.107 schwarze 154: break;
1.1 kristaps 155: }
156: }
157:
1.107 schwarze 158: static void
1.91 schwarze 159: check_root(CHKARGS)
1.14 kristaps 160: {
1.101 schwarze 161: assert((man->flags & (MAN_BLINE | MAN_ELINE)) == 0);
1.17 kristaps 162:
1.134 schwarze 163: if (n->last == NULL || n->last->type == ROFFT_COMMENT)
1.141 schwarze 164: mandoc_msg(MANDOCERR_DOC_EMPTY, n->line, n->pos, NULL);
1.93 schwarze 165: else
166: man->meta.hasbody = 1;
167:
168: if (NULL == man->meta.title) {
1.141 schwarze 169: mandoc_msg(MANDOCERR_TH_NOTITLE, n->line, n->pos, NULL);
1.54 kristaps 170:
1.34 kristaps 171: /*
172: * If a title hasn't been set, do so now (by
173: * implication, date and section also aren't set).
174: */
1.54 kristaps 175:
1.105 schwarze 176: man->meta.title = mandoc_strdup("");
177: man->meta.msec = mandoc_strdup("");
1.150 schwarze 178: man->meta.date = mandoc_normdate(NULL, NULL);
1.34 kristaps 179: }
1.130 schwarze 180:
181: if (man->meta.os_e &&
182: (man->meta.rcsids & (1 << man->meta.os_e)) == 0)
1.141 schwarze 183: mandoc_msg(MANDOCERR_RCS_MISSING, 0, 0,
1.131 schwarze 184: man->meta.os_e == MANDOC_OS_OPENBSD ?
185: "(OpenBSD)" : "(NetBSD)");
1.75 kristaps 186: }
187:
1.151 schwarze 188: /*
189: * Skip leading whitespace, dashes, backslashes, and font escapes,
190: * then create a tag if the first following byte is a letter.
191: * Priority is high unless whitespace is present.
192: */
193: static void
194: check_tag(struct roff_node *n, struct roff_node *nt)
195: {
196: const char *cp, *arg;
197: int prio, sz;
198:
199: if (nt == NULL || nt->type != ROFFT_TEXT)
200: return;
201:
202: cp = nt->string;
203: prio = TAG_STRONG;
204: for (;;) {
205: switch (*cp) {
206: case ' ':
207: case '\t':
208: prio = TAG_WEAK;
209: /* FALLTHROUGH */
210: case '-':
211: cp++;
212: break;
213: case '\\':
214: cp++;
215: switch (mandoc_escape(&cp, &arg, &sz)) {
216: case ESCAPE_FONT:
217: case ESCAPE_FONTBOLD:
218: case ESCAPE_FONTITALIC:
219: case ESCAPE_FONTBI:
220: case ESCAPE_FONTROMAN:
1.156 schwarze 221: case ESCAPE_FONTCR:
222: case ESCAPE_FONTCB:
223: case ESCAPE_FONTCI:
1.151 schwarze 224: case ESCAPE_FONTPREV:
225: case ESCAPE_IGNORE:
226: break;
227: case ESCAPE_SPECIAL:
228: if (sz != 1)
229: return;
230: switch (*arg) {
231: case '-':
232: case 'e':
233: break;
234: default:
235: return;
236: }
237: break;
238: default:
239: return;
240: }
241: break;
242: default:
243: if (isalpha((unsigned char)*cp))
244: tag_put(cp, prio, n);
245: return;
246: }
247: }
248: }
249:
1.138 schwarze 250: static void
1.75 kristaps 251: check_text(CHKARGS)
252: {
253: char *cp, *p;
254:
1.145 schwarze 255: if (n->flags & NODE_NOFILL)
1.107 schwarze 256: return;
1.76 schwarze 257:
258: cp = n->string;
259: for (p = cp; NULL != (p = strchr(p, '\t')); p++)
1.141 schwarze 260: mandoc_msg(MANDOCERR_FI_TAB,
261: n->line, n->pos + (int)(p - cp), NULL);
1.145 schwarze 262: }
263:
264: static void
265: post_EE(CHKARGS)
266: {
267: if ((n->flags & NODE_NOFILL) == 0)
268: mandoc_msg(MANDOCERR_FI_SKIP, n->line, n->pos, "EE");
269: }
270:
271: static void
272: post_EX(CHKARGS)
273: {
274: if (n->flags & NODE_NOFILL)
275: mandoc_msg(MANDOCERR_NF_SKIP, n->line, n->pos, "EX");
1.1 kristaps 276: }
277:
1.113 schwarze 278: static void
279: post_OP(CHKARGS)
280: {
281:
1.122 schwarze 282: if (n->child == NULL)
1.141 schwarze 283: mandoc_msg(MANDOCERR_OP_EMPTY, n->line, n->pos, "OP");
1.122 schwarze 284: else if (n->child->next != NULL && n->child->next->next != NULL) {
1.113 schwarze 285: n = n->child->next->next;
1.141 schwarze 286: mandoc_msg(MANDOCERR_ARG_EXCESS,
1.113 schwarze 287: n->line, n->pos, "OP ... %s", n->string);
288: }
1.1 kristaps 289: }
290:
1.107 schwarze 291: static void
1.139 schwarze 292: post_SH(CHKARGS)
293: {
294: struct roff_node *nc;
1.152 schwarze 295: char *cp, *tag;
1.139 schwarze 296:
1.152 schwarze 297: nc = n->child;
298: switch (n->type) {
299: case ROFFT_HEAD:
300: tag = NULL;
301: deroff(&tag, n);
302: if (tag != NULL) {
303: for (cp = tag; *cp != '\0'; cp++)
304: if (*cp == ' ')
305: *cp = '_';
306: if (nc != NULL && nc->type == ROFFT_TEXT &&
307: strcmp(nc->string, tag) == 0)
1.155 schwarze 308: tag_put(NULL, TAG_STRONG, n);
1.152 schwarze 309: else
310: tag_put(tag, TAG_FALLBACK, n);
311: free(tag);
312: }
313: return;
314: case ROFFT_BODY:
315: if (nc != NULL)
316: break;
1.139 schwarze 317: return;
1.152 schwarze 318: default:
319: return;
320: }
1.139 schwarze 321:
1.158 ! schwarze 322: if ((nc->tok == MAN_LP || nc->tok == MAN_PP || nc->tok == MAN_P) &&
! 323: nc->body->child != NULL) {
1.139 schwarze 324: while (nc->body->last != NULL) {
325: man->next = ROFF_NEXT_CHILD;
326: roff_node_relink(man, nc->body->last);
327: man->last = n;
328: }
329: }
330:
1.158 ! schwarze 331: if (nc->tok == MAN_LP || nc->tok == MAN_PP || nc->tok == MAN_P ||
! 332: nc->tok == ROFF_sp || nc->tok == ROFF_br) {
1.141 schwarze 333: mandoc_msg(MANDOCERR_PAR_SKIP, nc->line, nc->pos,
334: "%s after %s", roff_name[nc->tok], roff_name[n->tok]);
1.139 schwarze 335: roff_node_delete(man, nc);
336: }
337:
338: /*
339: * Trailing PP is empty, so it is deleted by check_par().
340: * Trailing sp is significant.
341: */
342:
343: if ((nc = n->last) != NULL && nc->tok == ROFF_br) {
1.141 schwarze 344: mandoc_msg(MANDOCERR_PAR_SKIP,
1.139 schwarze 345: nc->line, nc->pos, "%s at the end of %s",
346: roff_name[nc->tok], roff_name[n->tok]);
347: roff_node_delete(man, nc);
348: }
349: }
350:
351: static void
1.104 schwarze 352: post_UR(CHKARGS)
1.86 schwarze 353: {
1.114 schwarze 354: if (n->type == ROFFT_HEAD && n->child == NULL)
1.141 schwarze 355: mandoc_msg(MANDOCERR_UR_NOHEAD, n->line, n->pos,
356: "%s", roff_name[n->tok]);
1.55 kristaps 357: }
1.16 kristaps 358:
1.107 schwarze 359: static void
1.23 kristaps 360: check_part(CHKARGS)
361: {
1.114 schwarze 362: if (n->type == ROFFT_BODY && n->child == NULL)
1.141 schwarze 363: mandoc_msg(MANDOCERR_BLK_EMPTY, n->line, n->pos,
364: "%s", roff_name[n->tok]);
1.23 kristaps 365: }
366:
1.107 schwarze 367: static void
1.17 kristaps 368: check_par(CHKARGS)
369: {
370:
1.59 kristaps 371: switch (n->type) {
1.114 schwarze 372: case ROFFT_BLOCK:
1.122 schwarze 373: if (n->body->child == NULL)
1.118 schwarze 374: roff_node_delete(man, n);
1.59 kristaps 375: break;
1.114 schwarze 376: case ROFFT_BODY:
1.139 schwarze 377: if (n->child != NULL &&
378: (n->child->tok == ROFF_sp || n->child->tok == ROFF_br)) {
1.141 schwarze 379: mandoc_msg(MANDOCERR_PAR_SKIP,
380: n->child->line, n->child->pos,
1.139 schwarze 381: "%s after %s", roff_name[n->child->tok],
382: roff_name[n->tok]);
383: roff_node_delete(man, n->child);
384: }
1.122 schwarze 385: if (n->child == NULL)
1.141 schwarze 386: mandoc_msg(MANDOCERR_PAR_SKIP, n->line, n->pos,
1.123 schwarze 387: "%s empty", roff_name[n->tok]);
1.59 kristaps 388: break;
1.114 schwarze 389: case ROFFT_HEAD:
1.122 schwarze 390: if (n->child != NULL)
1.141 schwarze 391: mandoc_msg(MANDOCERR_ARG_SKIP,
392: n->line, n->pos, "%s %s%s",
1.123 schwarze 393: roff_name[n->tok], n->child->string,
1.122 schwarze 394: n->child->next != NULL ? " ..." : "");
1.59 kristaps 395: break;
396: default:
397: break;
398: }
1.17 kristaps 399: }
400:
1.107 schwarze 401: static void
1.83 schwarze 402: post_IP(CHKARGS)
403: {
404: switch (n->type) {
1.114 schwarze 405: case ROFFT_BLOCK:
1.122 schwarze 406: if (n->head->child == NULL && n->body->child == NULL)
1.118 schwarze 407: roff_node_delete(man, n);
1.83 schwarze 408: break;
1.151 schwarze 409: case ROFFT_HEAD:
410: check_tag(n, n->child);
411: break;
1.114 schwarze 412: case ROFFT_BODY:
1.122 schwarze 413: if (n->parent->head->child == NULL && n->child == NULL)
1.141 schwarze 414: mandoc_msg(MANDOCERR_PAR_SKIP, n->line, n->pos,
1.123 schwarze 415: "%s empty", roff_name[n->tok]);
1.83 schwarze 416: break;
417: default:
418: break;
419: }
1.151 schwarze 420: }
421:
422: /*
423: * The first next-line element in the head is the tag.
424: * If that's a font macro, use its first child instead.
425: */
426: static void
427: post_TP(CHKARGS)
428: {
429: struct roff_node *nt;
430:
431: if (n->type != ROFFT_HEAD || (nt = n->child) == NULL)
432: return;
433:
434: while ((nt->flags & NODE_LINE) == 0)
435: if ((nt = nt->next) == NULL)
436: return;
437:
438: switch (nt->tok) {
439: case MAN_B:
440: case MAN_BI:
441: case MAN_BR:
442: case MAN_I:
443: case MAN_IB:
444: case MAN_IR:
445: nt = nt->child;
446: break;
447: default:
448: break;
449: }
450: check_tag(n, nt);
1.83 schwarze 451: }
1.17 kristaps 452:
1.107 schwarze 453: static void
1.51 kristaps 454: post_TH(CHKARGS)
455: {
1.115 schwarze 456: struct roff_node *nb;
1.60 schwarze 457: const char *p;
1.51 kristaps 458:
1.85 schwarze 459: free(man->meta.title);
460: free(man->meta.vol);
1.116 schwarze 461: free(man->meta.os);
1.85 schwarze 462: free(man->meta.msec);
463: free(man->meta.date);
1.51 kristaps 464:
1.85 schwarze 465: man->meta.title = man->meta.vol = man->meta.date =
1.116 schwarze 466: man->meta.msec = man->meta.os = NULL;
1.51 kristaps 467:
1.92 schwarze 468: nb = n;
469:
1.116 schwarze 470: /* ->TITLE<- MSEC DATE OS VOL */
1.51 kristaps 471:
472: n = n->child;
1.149 schwarze 473: if (n != NULL && n->string != NULL) {
474: for (p = n->string; *p != '\0'; p++) {
1.60 schwarze 475: /* Only warn about this once... */
1.91 schwarze 476: if (isalpha((unsigned char)*p) &&
477: ! isupper((unsigned char)*p)) {
1.141 schwarze 478: mandoc_msg(MANDOCERR_TITLE_CASE, n->line,
479: n->pos + (int)(p - n->string),
1.102 schwarze 480: "TH %s", n->string);
1.60 schwarze 481: break;
482: }
483: }
1.85 schwarze 484: man->meta.title = mandoc_strdup(n->string);
1.105 schwarze 485: } else {
1.85 schwarze 486: man->meta.title = mandoc_strdup("");
1.141 schwarze 487: mandoc_msg(MANDOCERR_TH_NOTITLE, nb->line, nb->pos, "TH");
1.105 schwarze 488: }
1.51 kristaps 489:
1.116 schwarze 490: /* TITLE ->MSEC<- DATE OS VOL */
1.51 kristaps 491:
1.149 schwarze 492: if (n != NULL)
1.60 schwarze 493: n = n->next;
1.154 schwarze 494: if (n != NULL && n->string != NULL) {
1.85 schwarze 495: man->meta.msec = mandoc_strdup(n->string);
1.154 schwarze 496: if (man->filesec != '\0' &&
497: man->filesec != *n->string &&
498: *n->string >= '1' && *n->string <= '9')
499: mandoc_msg(MANDOCERR_MSEC_FILE, n->line, n->pos,
500: "*.%c vs TH ... %c", man->filesec, *n->string);
501: } else {
1.85 schwarze 502: man->meta.msec = mandoc_strdup("");
1.141 schwarze 503: mandoc_msg(MANDOCERR_MSEC_MISSING,
1.105 schwarze 504: nb->line, nb->pos, "TH %s", man->meta.title);
505: }
1.51 kristaps 506:
1.116 schwarze 507: /* TITLE MSEC ->DATE<- OS VOL */
1.51 kristaps 508:
1.149 schwarze 509: if (n != NULL)
1.60 schwarze 510: n = n->next;
1.150 schwarze 511: if (man->quick && n != NULL)
1.85 schwarze 512: man->meta.date = mandoc_strdup("");
1.150 schwarze 513: else
514: man->meta.date = mandoc_normdate(n, nb);
1.51 kristaps 515:
1.116 schwarze 516: /* TITLE MSEC DATE ->OS<- VOL */
1.51 kristaps 517:
518: if (n && (n = n->next))
1.116 schwarze 519: man->meta.os = mandoc_strdup(n->string);
1.131 schwarze 520: else if (man->os_s != NULL)
521: man->meta.os = mandoc_strdup(man->os_s);
522: if (man->meta.os_e == MANDOC_OS_OTHER && man->meta.os != NULL) {
523: if (strstr(man->meta.os, "OpenBSD") != NULL)
524: man->meta.os_e = MANDOC_OS_OPENBSD;
525: else if (strstr(man->meta.os, "NetBSD") != NULL)
526: man->meta.os_e = MANDOC_OS_NETBSD;
527: }
1.51 kristaps 528:
1.116 schwarze 529: /* TITLE MSEC DATE OS ->VOL<- */
1.79 schwarze 530: /* If missing, use the default VOL name for MSEC. */
1.51 kristaps 531:
532: if (n && (n = n->next))
1.85 schwarze 533: man->meta.vol = mandoc_strdup(n->string);
534: else if ('\0' != man->meta.msec[0] &&
535: (NULL != (p = mandoc_a2msec(man->meta.msec))))
536: man->meta.vol = mandoc_strdup(p);
1.113 schwarze 537:
538: if (n != NULL && (n = n->next) != NULL)
1.141 schwarze 539: mandoc_msg(MANDOCERR_ARG_EXCESS,
1.113 schwarze 540: n->line, n->pos, "TH ... %s", n->string);
1.51 kristaps 541:
542: /*
543: * Remove the `TH' node after we've processed it for our
544: * meta-data.
545: */
1.118 schwarze 546: roff_node_delete(man, man->last);
1.51 kristaps 547: }
548:
1.107 schwarze 549: static void
1.51 kristaps 550: post_UC(CHKARGS)
551: {
552: static const char * const bsd_versions[] = {
553: "3rd Berkeley Distribution",
554: "4th Berkeley Distribution",
555: "4.2 Berkeley Distribution",
556: "4.3 Berkeley Distribution",
557: "4.4 Berkeley Distribution",
558: };
559:
560: const char *p, *s;
561:
562: n = n->child;
563:
1.114 schwarze 564: if (n == NULL || n->type != ROFFT_TEXT)
1.51 kristaps 565: p = bsd_versions[0];
566: else {
567: s = n->string;
568: if (0 == strcmp(s, "3"))
569: p = bsd_versions[0];
570: else if (0 == strcmp(s, "4"))
571: p = bsd_versions[1];
572: else if (0 == strcmp(s, "5"))
573: p = bsd_versions[2];
574: else if (0 == strcmp(s, "6"))
575: p = bsd_versions[3];
576: else if (0 == strcmp(s, "7"))
577: p = bsd_versions[4];
578: else
579: p = bsd_versions[0];
580: }
581:
1.116 schwarze 582: free(man->meta.os);
583: man->meta.os = mandoc_strdup(p);
1.51 kristaps 584: }
585:
1.107 schwarze 586: static void
1.51 kristaps 587: post_AT(CHKARGS)
588: {
589: static const char * const unix_versions[] = {
590: "7th Edition",
591: "System III",
592: "System V",
593: "System V Release 2",
594: };
595:
1.115 schwarze 596: struct roff_node *nn;
1.51 kristaps 597: const char *p, *s;
598:
599: n = n->child;
600:
1.114 schwarze 601: if (n == NULL || n->type != ROFFT_TEXT)
1.51 kristaps 602: p = unix_versions[0];
603: else {
604: s = n->string;
605: if (0 == strcmp(s, "3"))
606: p = unix_versions[0];
607: else if (0 == strcmp(s, "4"))
608: p = unix_versions[1];
609: else if (0 == strcmp(s, "5")) {
610: nn = n->next;
1.114 schwarze 611: if (nn != NULL &&
612: nn->type == ROFFT_TEXT &&
613: nn->string[0] != '\0')
1.51 kristaps 614: p = unix_versions[3];
615: else
616: p = unix_versions[2];
617: } else
618: p = unix_versions[0];
619: }
620:
1.116 schwarze 621: free(man->meta.os);
622: man->meta.os = mandoc_strdup(p);
1.129 schwarze 623: }
624:
625: static void
626: post_in(CHKARGS)
627: {
628: char *s;
629:
630: if (n->parent->tok != MAN_TP ||
631: n->parent->type != ROFFT_HEAD ||
632: n->child == NULL ||
633: *n->child->string == '+' ||
634: *n->child->string == '-')
635: return;
636: mandoc_asprintf(&s, "+%s", n->child->string);
637: free(n->child->string);
638: n->child->string = s;
1.51 kristaps 639: }
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