Annotation of mandoc/man_validate.c, Revision 1.159
1.159 ! schwarze 1: /* $Id: man_validate.c,v 1.158 2023/04/28 20:23:19 schwarze Exp $ */
1.1 kristaps 2: /*
1.159 ! schwarze 3: * Copyright (c) 2010, 2012-2020, 2023 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"
1.159 ! schwarze 36: #include "mandoc_xr.h"
1.114 schwarze 37: #include "roff.h"
1.66 kristaps 38: #include "man.h"
1.114 schwarze 39: #include "libmandoc.h"
1.118 schwarze 40: #include "roff_int.h"
1.1 kristaps 41: #include "libman.h"
1.153 schwarze 42: #include "tag.h"
1.1 kristaps 43:
1.117 schwarze 44: #define CHKARGS struct roff_man *man, struct roff_node *n
1.1 kristaps 45:
1.107 schwarze 46: typedef void (*v_check)(CHKARGS);
1.1 kristaps 47:
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);
1.159 ! schwarze 58: static void post_MR(CHKARGS);
1.113 schwarze 59: static void post_OP(CHKARGS);
1.139 schwarze 60: static void post_SH(CHKARGS);
1.107 schwarze 61: static void post_TH(CHKARGS);
1.151 schwarze 62: static void post_TP(CHKARGS);
1.107 schwarze 63: static void post_UC(CHKARGS);
64: static void post_UR(CHKARGS);
1.129 schwarze 65: static void post_in(CHKARGS);
1.51 kristaps 66:
1.135 schwarze 67: static const v_check man_valids[MAN_MAX - MAN_TH] = {
1.104 schwarze 68: post_TH, /* TH */
1.139 schwarze 69: post_SH, /* SH */
70: post_SH, /* SS */
1.151 schwarze 71: post_TP, /* TP */
72: post_TP, /* TQ */
1.158 schwarze 73: check_par, /* LP */
1.104 schwarze 74: check_par, /* PP */
1.158 schwarze 75: check_par, /* P */
1.104 schwarze 76: post_IP, /* IP */
77: NULL, /* HP */
78: NULL, /* SM */
79: NULL, /* SB */
80: NULL, /* BI */
81: NULL, /* IB */
82: NULL, /* BR */
83: NULL, /* RB */
84: NULL, /* R */
85: NULL, /* B */
86: NULL, /* I */
87: NULL, /* IR */
88: NULL, /* RI */
89: NULL, /* RE */
90: check_part, /* RS */
91: NULL, /* DT */
92: post_UC, /* UC */
1.112 schwarze 93: NULL, /* PD */
1.104 schwarze 94: post_AT, /* AT */
1.129 schwarze 95: post_in, /* in */
1.137 schwarze 96: NULL, /* SY */
97: NULL, /* YS */
1.113 schwarze 98: post_OP, /* OP */
1.145 schwarze 99: post_EX, /* EX */
100: post_EE, /* EE */
1.104 schwarze 101: post_UR, /* UR */
102: NULL, /* UE */
1.132 schwarze 103: post_UR, /* MT */
104: NULL, /* ME */
1.159 ! schwarze 105: post_MR, /* MR */
1.1 kristaps 106: };
107:
108:
1.138 schwarze 109: /* Validate the subtree rooted at man->last. */
1.107 schwarze 110: void
1.143 schwarze 111: man_validate(struct roff_man *man)
1.1 kristaps 112: {
1.115 schwarze 113: struct roff_node *n;
1.123 schwarze 114: const v_check *cp;
1.1 kristaps 115:
1.138 schwarze 116: /*
117: * Iterate over all children, recursing into each one
118: * in turn, depth-first.
119: */
120:
1.158 schwarze 121: n = man->last;
1.121 schwarze 122: man->last = man->last->child;
123: while (man->last != NULL) {
1.143 schwarze 124: man_validate(man);
1.121 schwarze 125: if (man->last == n)
126: man->last = man->last->child;
127: else
128: man->last = man->last->next;
129: }
1.1 kristaps 130:
1.138 schwarze 131: /* Finally validate the macro itself. */
132:
1.121 schwarze 133: man->last = n;
134: man->next = ROFF_NEXT_SIBLING;
1.104 schwarze 135: switch (n->type) {
1.114 schwarze 136: case ROFFT_TEXT:
1.107 schwarze 137: check_text(man, n);
138: break;
1.114 schwarze 139: case ROFFT_ROOT:
1.107 schwarze 140: check_root(man, n);
141: break;
1.134 schwarze 142: case ROFFT_COMMENT:
1.114 schwarze 143: case ROFFT_EQN:
144: case ROFFT_TBL:
1.107 schwarze 145: break;
1.1 kristaps 146: default:
1.124 schwarze 147: if (n->tok < ROFF_MAX) {
1.139 schwarze 148: roff_validate(man);
1.124 schwarze 149: break;
150: }
151: assert(n->tok >= MAN_TH && n->tok < MAN_MAX);
1.135 schwarze 152: cp = man_valids + (n->tok - MAN_TH);
1.107 schwarze 153: if (*cp)
154: (*cp)(man, n);
1.121 schwarze 155: if (man->last == n)
1.146 schwarze 156: n->flags |= NODE_VALID;
1.107 schwarze 157: break;
1.1 kristaps 158: }
159: }
160:
1.107 schwarze 161: static void
1.91 schwarze 162: check_root(CHKARGS)
1.14 kristaps 163: {
1.101 schwarze 164: assert((man->flags & (MAN_BLINE | MAN_ELINE)) == 0);
1.17 kristaps 165:
1.134 schwarze 166: if (n->last == NULL || n->last->type == ROFFT_COMMENT)
1.141 schwarze 167: mandoc_msg(MANDOCERR_DOC_EMPTY, n->line, n->pos, NULL);
1.93 schwarze 168: else
169: man->meta.hasbody = 1;
170:
171: if (NULL == man->meta.title) {
1.141 schwarze 172: mandoc_msg(MANDOCERR_TH_NOTITLE, n->line, n->pos, NULL);
1.54 kristaps 173:
1.34 kristaps 174: /*
175: * If a title hasn't been set, do so now (by
176: * implication, date and section also aren't set).
177: */
1.54 kristaps 178:
1.105 schwarze 179: man->meta.title = mandoc_strdup("");
180: man->meta.msec = mandoc_strdup("");
1.150 schwarze 181: man->meta.date = mandoc_normdate(NULL, NULL);
1.34 kristaps 182: }
1.130 schwarze 183:
184: if (man->meta.os_e &&
185: (man->meta.rcsids & (1 << man->meta.os_e)) == 0)
1.141 schwarze 186: mandoc_msg(MANDOCERR_RCS_MISSING, 0, 0,
1.131 schwarze 187: man->meta.os_e == MANDOC_OS_OPENBSD ?
188: "(OpenBSD)" : "(NetBSD)");
1.75 kristaps 189: }
190:
1.151 schwarze 191: /*
192: * Skip leading whitespace, dashes, backslashes, and font escapes,
193: * then create a tag if the first following byte is a letter.
194: * Priority is high unless whitespace is present.
195: */
196: static void
197: check_tag(struct roff_node *n, struct roff_node *nt)
198: {
199: const char *cp, *arg;
200: int prio, sz;
201:
202: if (nt == NULL || nt->type != ROFFT_TEXT)
203: return;
204:
205: cp = nt->string;
206: prio = TAG_STRONG;
207: for (;;) {
208: switch (*cp) {
209: case ' ':
210: case '\t':
211: prio = TAG_WEAK;
212: /* FALLTHROUGH */
213: case '-':
214: cp++;
215: break;
216: case '\\':
217: cp++;
218: switch (mandoc_escape(&cp, &arg, &sz)) {
219: case ESCAPE_FONT:
220: case ESCAPE_FONTBOLD:
221: case ESCAPE_FONTITALIC:
222: case ESCAPE_FONTBI:
223: case ESCAPE_FONTROMAN:
1.156 schwarze 224: case ESCAPE_FONTCR:
225: case ESCAPE_FONTCB:
226: case ESCAPE_FONTCI:
1.151 schwarze 227: case ESCAPE_FONTPREV:
228: case ESCAPE_IGNORE:
229: break;
230: case ESCAPE_SPECIAL:
231: if (sz != 1)
232: return;
233: switch (*arg) {
234: case '-':
235: case 'e':
236: break;
237: default:
238: return;
239: }
240: break;
241: default:
242: return;
243: }
244: break;
245: default:
246: if (isalpha((unsigned char)*cp))
247: tag_put(cp, prio, n);
248: return;
249: }
250: }
251: }
252:
1.138 schwarze 253: static void
1.75 kristaps 254: check_text(CHKARGS)
255: {
256: char *cp, *p;
257:
1.145 schwarze 258: if (n->flags & NODE_NOFILL)
1.107 schwarze 259: return;
1.76 schwarze 260:
261: cp = n->string;
262: for (p = cp; NULL != (p = strchr(p, '\t')); p++)
1.141 schwarze 263: mandoc_msg(MANDOCERR_FI_TAB,
264: n->line, n->pos + (int)(p - cp), NULL);
1.145 schwarze 265: }
266:
267: static void
268: post_EE(CHKARGS)
269: {
270: if ((n->flags & NODE_NOFILL) == 0)
271: mandoc_msg(MANDOCERR_FI_SKIP, n->line, n->pos, "EE");
272: }
273:
274: static void
275: post_EX(CHKARGS)
276: {
277: if (n->flags & NODE_NOFILL)
278: mandoc_msg(MANDOCERR_NF_SKIP, n->line, n->pos, "EX");
1.1 kristaps 279: }
280:
1.113 schwarze 281: static void
282: post_OP(CHKARGS)
283: {
284:
1.122 schwarze 285: if (n->child == NULL)
1.141 schwarze 286: mandoc_msg(MANDOCERR_OP_EMPTY, n->line, n->pos, "OP");
1.122 schwarze 287: else if (n->child->next != NULL && n->child->next->next != NULL) {
1.113 schwarze 288: n = n->child->next->next;
1.141 schwarze 289: mandoc_msg(MANDOCERR_ARG_EXCESS,
1.113 schwarze 290: n->line, n->pos, "OP ... %s", n->string);
291: }
1.1 kristaps 292: }
293:
1.107 schwarze 294: static void
1.139 schwarze 295: post_SH(CHKARGS)
296: {
297: struct roff_node *nc;
1.152 schwarze 298: char *cp, *tag;
1.139 schwarze 299:
1.152 schwarze 300: nc = n->child;
301: switch (n->type) {
302: case ROFFT_HEAD:
303: tag = NULL;
304: deroff(&tag, n);
305: if (tag != NULL) {
306: for (cp = tag; *cp != '\0'; cp++)
307: if (*cp == ' ')
308: *cp = '_';
309: if (nc != NULL && nc->type == ROFFT_TEXT &&
310: strcmp(nc->string, tag) == 0)
1.155 schwarze 311: tag_put(NULL, TAG_STRONG, n);
1.152 schwarze 312: else
313: tag_put(tag, TAG_FALLBACK, n);
314: free(tag);
315: }
316: return;
317: case ROFFT_BODY:
318: if (nc != NULL)
319: break;
1.139 schwarze 320: return;
1.152 schwarze 321: default:
322: return;
323: }
1.139 schwarze 324:
1.158 schwarze 325: if ((nc->tok == MAN_LP || nc->tok == MAN_PP || nc->tok == MAN_P) &&
326: nc->body->child != NULL) {
1.139 schwarze 327: while (nc->body->last != NULL) {
328: man->next = ROFF_NEXT_CHILD;
329: roff_node_relink(man, nc->body->last);
330: man->last = n;
331: }
332: }
333:
1.158 schwarze 334: if (nc->tok == MAN_LP || nc->tok == MAN_PP || nc->tok == MAN_P ||
335: nc->tok == ROFF_sp || nc->tok == ROFF_br) {
1.141 schwarze 336: mandoc_msg(MANDOCERR_PAR_SKIP, nc->line, nc->pos,
337: "%s after %s", roff_name[nc->tok], roff_name[n->tok]);
1.139 schwarze 338: roff_node_delete(man, nc);
339: }
340:
341: /*
342: * Trailing PP is empty, so it is deleted by check_par().
343: * Trailing sp is significant.
344: */
345:
346: if ((nc = n->last) != NULL && nc->tok == ROFF_br) {
1.141 schwarze 347: mandoc_msg(MANDOCERR_PAR_SKIP,
1.139 schwarze 348: nc->line, nc->pos, "%s at the end of %s",
349: roff_name[nc->tok], roff_name[n->tok]);
350: roff_node_delete(man, nc);
351: }
352: }
353:
354: static void
1.104 schwarze 355: post_UR(CHKARGS)
1.86 schwarze 356: {
1.114 schwarze 357: if (n->type == ROFFT_HEAD && n->child == NULL)
1.141 schwarze 358: mandoc_msg(MANDOCERR_UR_NOHEAD, n->line, n->pos,
359: "%s", roff_name[n->tok]);
1.55 kristaps 360: }
1.16 kristaps 361:
1.107 schwarze 362: static void
1.23 kristaps 363: check_part(CHKARGS)
364: {
1.114 schwarze 365: if (n->type == ROFFT_BODY && n->child == NULL)
1.141 schwarze 366: mandoc_msg(MANDOCERR_BLK_EMPTY, n->line, n->pos,
367: "%s", roff_name[n->tok]);
1.23 kristaps 368: }
369:
1.107 schwarze 370: static void
1.17 kristaps 371: check_par(CHKARGS)
372: {
373:
1.59 kristaps 374: switch (n->type) {
1.114 schwarze 375: case ROFFT_BLOCK:
1.122 schwarze 376: if (n->body->child == NULL)
1.118 schwarze 377: roff_node_delete(man, n);
1.59 kristaps 378: break;
1.114 schwarze 379: case ROFFT_BODY:
1.139 schwarze 380: if (n->child != NULL &&
381: (n->child->tok == ROFF_sp || n->child->tok == ROFF_br)) {
1.141 schwarze 382: mandoc_msg(MANDOCERR_PAR_SKIP,
383: n->child->line, n->child->pos,
1.139 schwarze 384: "%s after %s", roff_name[n->child->tok],
385: roff_name[n->tok]);
386: roff_node_delete(man, n->child);
387: }
1.122 schwarze 388: if (n->child == NULL)
1.141 schwarze 389: mandoc_msg(MANDOCERR_PAR_SKIP, n->line, n->pos,
1.123 schwarze 390: "%s empty", roff_name[n->tok]);
1.59 kristaps 391: break;
1.114 schwarze 392: case ROFFT_HEAD:
1.122 schwarze 393: if (n->child != NULL)
1.141 schwarze 394: mandoc_msg(MANDOCERR_ARG_SKIP,
395: n->line, n->pos, "%s %s%s",
1.123 schwarze 396: roff_name[n->tok], n->child->string,
1.122 schwarze 397: n->child->next != NULL ? " ..." : "");
1.59 kristaps 398: break;
399: default:
400: break;
401: }
1.17 kristaps 402: }
403:
1.107 schwarze 404: static void
1.83 schwarze 405: post_IP(CHKARGS)
406: {
407: switch (n->type) {
1.114 schwarze 408: case ROFFT_BLOCK:
1.122 schwarze 409: if (n->head->child == NULL && n->body->child == NULL)
1.118 schwarze 410: roff_node_delete(man, n);
1.83 schwarze 411: break;
1.151 schwarze 412: case ROFFT_HEAD:
413: check_tag(n, n->child);
414: break;
1.114 schwarze 415: case ROFFT_BODY:
1.122 schwarze 416: if (n->parent->head->child == NULL && n->child == NULL)
1.141 schwarze 417: mandoc_msg(MANDOCERR_PAR_SKIP, n->line, n->pos,
1.123 schwarze 418: "%s empty", roff_name[n->tok]);
1.83 schwarze 419: break;
420: default:
421: break;
422: }
1.151 schwarze 423: }
424:
425: /*
426: * The first next-line element in the head is the tag.
427: * If that's a font macro, use its first child instead.
428: */
429: static void
430: post_TP(CHKARGS)
431: {
432: struct roff_node *nt;
433:
434: if (n->type != ROFFT_HEAD || (nt = n->child) == NULL)
435: return;
436:
437: while ((nt->flags & NODE_LINE) == 0)
438: if ((nt = nt->next) == NULL)
439: return;
440:
441: switch (nt->tok) {
442: case MAN_B:
443: case MAN_BI:
444: case MAN_BR:
445: case MAN_I:
446: case MAN_IB:
447: case MAN_IR:
448: nt = nt->child;
449: break;
450: default:
451: break;
452: }
453: check_tag(n, nt);
1.83 schwarze 454: }
1.17 kristaps 455:
1.107 schwarze 456: static void
1.51 kristaps 457: post_TH(CHKARGS)
458: {
1.115 schwarze 459: struct roff_node *nb;
1.60 schwarze 460: const char *p;
1.51 kristaps 461:
1.85 schwarze 462: free(man->meta.title);
463: free(man->meta.vol);
1.116 schwarze 464: free(man->meta.os);
1.85 schwarze 465: free(man->meta.msec);
466: free(man->meta.date);
1.51 kristaps 467:
1.85 schwarze 468: man->meta.title = man->meta.vol = man->meta.date =
1.116 schwarze 469: man->meta.msec = man->meta.os = NULL;
1.51 kristaps 470:
1.92 schwarze 471: nb = n;
472:
1.116 schwarze 473: /* ->TITLE<- MSEC DATE OS VOL */
1.51 kristaps 474:
475: n = n->child;
1.149 schwarze 476: if (n != NULL && n->string != NULL) {
477: for (p = n->string; *p != '\0'; p++) {
1.60 schwarze 478: /* Only warn about this once... */
1.91 schwarze 479: if (isalpha((unsigned char)*p) &&
480: ! isupper((unsigned char)*p)) {
1.141 schwarze 481: mandoc_msg(MANDOCERR_TITLE_CASE, n->line,
482: n->pos + (int)(p - n->string),
1.102 schwarze 483: "TH %s", n->string);
1.60 schwarze 484: break;
485: }
486: }
1.85 schwarze 487: man->meta.title = mandoc_strdup(n->string);
1.105 schwarze 488: } else {
1.85 schwarze 489: man->meta.title = mandoc_strdup("");
1.141 schwarze 490: mandoc_msg(MANDOCERR_TH_NOTITLE, nb->line, nb->pos, "TH");
1.105 schwarze 491: }
1.51 kristaps 492:
1.116 schwarze 493: /* TITLE ->MSEC<- DATE OS VOL */
1.51 kristaps 494:
1.149 schwarze 495: if (n != NULL)
1.60 schwarze 496: n = n->next;
1.154 schwarze 497: if (n != NULL && n->string != NULL) {
1.85 schwarze 498: man->meta.msec = mandoc_strdup(n->string);
1.154 schwarze 499: if (man->filesec != '\0' &&
500: man->filesec != *n->string &&
501: *n->string >= '1' && *n->string <= '9')
502: mandoc_msg(MANDOCERR_MSEC_FILE, n->line, n->pos,
503: "*.%c vs TH ... %c", man->filesec, *n->string);
504: } else {
1.85 schwarze 505: man->meta.msec = mandoc_strdup("");
1.141 schwarze 506: mandoc_msg(MANDOCERR_MSEC_MISSING,
1.105 schwarze 507: nb->line, nb->pos, "TH %s", man->meta.title);
508: }
1.51 kristaps 509:
1.116 schwarze 510: /* TITLE MSEC ->DATE<- OS VOL */
1.51 kristaps 511:
1.149 schwarze 512: if (n != NULL)
1.60 schwarze 513: n = n->next;
1.150 schwarze 514: if (man->quick && n != NULL)
1.85 schwarze 515: man->meta.date = mandoc_strdup("");
1.150 schwarze 516: else
517: man->meta.date = mandoc_normdate(n, nb);
1.51 kristaps 518:
1.116 schwarze 519: /* TITLE MSEC DATE ->OS<- VOL */
1.51 kristaps 520:
521: if (n && (n = n->next))
1.116 schwarze 522: man->meta.os = mandoc_strdup(n->string);
1.131 schwarze 523: else if (man->os_s != NULL)
524: man->meta.os = mandoc_strdup(man->os_s);
525: if (man->meta.os_e == MANDOC_OS_OTHER && man->meta.os != NULL) {
526: if (strstr(man->meta.os, "OpenBSD") != NULL)
527: man->meta.os_e = MANDOC_OS_OPENBSD;
528: else if (strstr(man->meta.os, "NetBSD") != NULL)
529: man->meta.os_e = MANDOC_OS_NETBSD;
530: }
1.51 kristaps 531:
1.116 schwarze 532: /* TITLE MSEC DATE OS ->VOL<- */
1.79 schwarze 533: /* If missing, use the default VOL name for MSEC. */
1.51 kristaps 534:
535: if (n && (n = n->next))
1.85 schwarze 536: man->meta.vol = mandoc_strdup(n->string);
537: else if ('\0' != man->meta.msec[0] &&
538: (NULL != (p = mandoc_a2msec(man->meta.msec))))
539: man->meta.vol = mandoc_strdup(p);
1.113 schwarze 540:
541: if (n != NULL && (n = n->next) != NULL)
1.141 schwarze 542: mandoc_msg(MANDOCERR_ARG_EXCESS,
1.113 schwarze 543: n->line, n->pos, "TH ... %s", n->string);
1.51 kristaps 544:
545: /*
546: * Remove the `TH' node after we've processed it for our
547: * meta-data.
548: */
1.118 schwarze 549: roff_node_delete(man, man->last);
1.159 ! schwarze 550: }
! 551:
! 552: static void
! 553: post_MR(CHKARGS)
! 554: {
! 555: struct roff_node *nch;
! 556:
! 557: if ((nch = n->child) == NULL) {
! 558: mandoc_msg(MANDOCERR_NM_NONAME, n->line, n->pos, "MR");
! 559: return;
! 560: }
! 561: if (nch->next == NULL) {
! 562: mandoc_msg(MANDOCERR_XR_NOSEC,
! 563: n->line, n->pos, "MR %s", nch->string);
! 564: return;
! 565: }
! 566: if (mandoc_xr_add(nch->next->string, nch->string, nch->line, nch->pos))
! 567: mandoc_msg(MANDOCERR_XR_SELF, nch->line, nch->pos,
! 568: "MR %s %s", nch->string, nch->next->string);
! 569: if ((nch = nch->next->next) == NULL || nch->next == NULL)
! 570: return;
! 571:
! 572: mandoc_msg(MANDOCERR_ARG_EXCESS, nch->next->line, nch->next->pos,
! 573: "MR ... %s", nch->next->string);
! 574: while (nch->next != NULL)
! 575: roff_node_delete(man, nch->next);
1.51 kristaps 576: }
577:
1.107 schwarze 578: static void
1.51 kristaps 579: post_UC(CHKARGS)
580: {
581: static const char * const bsd_versions[] = {
582: "3rd Berkeley Distribution",
583: "4th Berkeley Distribution",
584: "4.2 Berkeley Distribution",
585: "4.3 Berkeley Distribution",
586: "4.4 Berkeley Distribution",
587: };
588:
589: const char *p, *s;
590:
591: n = n->child;
592:
1.114 schwarze 593: if (n == NULL || n->type != ROFFT_TEXT)
1.51 kristaps 594: p = bsd_versions[0];
595: else {
596: s = n->string;
597: if (0 == strcmp(s, "3"))
598: p = bsd_versions[0];
599: else if (0 == strcmp(s, "4"))
600: p = bsd_versions[1];
601: else if (0 == strcmp(s, "5"))
602: p = bsd_versions[2];
603: else if (0 == strcmp(s, "6"))
604: p = bsd_versions[3];
605: else if (0 == strcmp(s, "7"))
606: p = bsd_versions[4];
607: else
608: p = bsd_versions[0];
609: }
610:
1.116 schwarze 611: free(man->meta.os);
612: man->meta.os = mandoc_strdup(p);
1.51 kristaps 613: }
614:
1.107 schwarze 615: static void
1.51 kristaps 616: post_AT(CHKARGS)
617: {
618: static const char * const unix_versions[] = {
619: "7th Edition",
620: "System III",
621: "System V",
622: "System V Release 2",
623: };
624:
1.115 schwarze 625: struct roff_node *nn;
1.51 kristaps 626: const char *p, *s;
627:
628: n = n->child;
629:
1.114 schwarze 630: if (n == NULL || n->type != ROFFT_TEXT)
1.51 kristaps 631: p = unix_versions[0];
632: else {
633: s = n->string;
634: if (0 == strcmp(s, "3"))
635: p = unix_versions[0];
636: else if (0 == strcmp(s, "4"))
637: p = unix_versions[1];
638: else if (0 == strcmp(s, "5")) {
639: nn = n->next;
1.114 schwarze 640: if (nn != NULL &&
641: nn->type == ROFFT_TEXT &&
642: nn->string[0] != '\0')
1.51 kristaps 643: p = unix_versions[3];
644: else
645: p = unix_versions[2];
646: } else
647: p = unix_versions[0];
648: }
649:
1.116 schwarze 650: free(man->meta.os);
651: man->meta.os = mandoc_strdup(p);
1.129 schwarze 652: }
653:
654: static void
655: post_in(CHKARGS)
656: {
657: char *s;
658:
659: if (n->parent->tok != MAN_TP ||
660: n->parent->type != ROFFT_HEAD ||
661: n->child == NULL ||
662: *n->child->string == '+' ||
663: *n->child->string == '-')
664: return;
665: mandoc_asprintf(&s, "+%s", n->child->string);
666: free(n->child->string);
667: n->child->string = s;
1.51 kristaps 668: }
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