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Annotation of mandoc/man_validate.c, Revision 1.83

1.83    ! schwarze    1: /*     $Id: man_validate.c,v 1.82 2012/07/18 16:41:09 schwarze Exp $ */
1.1       kristaps    2: /*
1.63      schwarze    3:  * Copyright (c) 2008, 2009, 2010, 2011 Kristaps Dzonsons <kristaps@bsd.lv>
1.82      schwarze    4:  * Copyright (c) 2010, 2012 Ingo Schwarze <schwarze@openbsd.org>
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:  *
1.8       kristaps   10:  * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
                     11:  * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
                     12:  * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
                     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.
1.1       kristaps   17:  */
1.28      kristaps   18: #ifdef HAVE_CONFIG_H
                     19: #include "config.h"
                     20: #endif
                     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>
                     29: #include <stdlib.h>
1.46      kristaps   30: #include <string.h>
1.50      kristaps   31: #include <time.h>
1.1       kristaps   32:
1.66      kristaps   33: #include "man.h"
1.41      kristaps   34: #include "mandoc.h"
1.1       kristaps   35: #include "libman.h"
1.15      kristaps   36: #include "libmandoc.h"
1.1       kristaps   37:
1.43      kristaps   38: #define        CHKARGS   struct man *m, struct man_node *n
1.1       kristaps   39:
1.17      kristaps   40: typedef        int     (*v_check)(CHKARGS);
1.1       kristaps   41:
                     42: struct man_valid {
1.17      kristaps   43:        v_check  *pres;
                     44:        v_check  *posts;
1.1       kristaps   45: };
                     46:
1.17      kristaps   47: static int       check_eq0(CHKARGS);
1.80      kristaps   48: static int       check_eq2(CHKARGS);
1.25      kristaps   49: static int       check_le1(CHKARGS);
1.17      kristaps   50: static int       check_ge2(CHKARGS);
                     51: static int       check_le5(CHKARGS);
                     52: static int       check_par(CHKARGS);
1.23      kristaps   53: static int       check_part(CHKARGS);
1.17      kristaps   54: static int       check_root(CHKARGS);
1.75      kristaps   55: static void      check_text(CHKARGS);
1.17      kristaps   56:
1.51      kristaps   57: static int       post_AT(CHKARGS);
1.83    ! schwarze   58: static int       post_IP(CHKARGS);
1.70      kristaps   59: static int       post_vs(CHKARGS);
1.51      kristaps   60: static int       post_fi(CHKARGS);
1.73      kristaps   61: static int       post_ft(CHKARGS);
1.51      kristaps   62: static int       post_nf(CHKARGS);
1.73      kristaps   63: static int       post_sec(CHKARGS);
1.51      kristaps   64: static int       post_TH(CHKARGS);
                     65: static int       post_UC(CHKARGS);
1.73      kristaps   66: static int       pre_sec(CHKARGS);
1.51      kristaps   67:
                     68: static v_check   posts_at[] = { post_AT, NULL };
1.70      kristaps   69: static v_check   posts_br[] = { post_vs, check_eq0, NULL };
1.17      kristaps   70: static v_check   posts_eq0[] = { check_eq0, NULL };
1.80      kristaps   71: static v_check   posts_eq2[] = { check_eq2, NULL };
1.51      kristaps   72: static v_check   posts_fi[] = { check_eq0, post_fi, NULL };
1.73      kristaps   73: static v_check   posts_ft[] = { post_ft, NULL };
1.83    ! schwarze   74: static v_check   posts_ip[] = { post_IP, NULL };
1.51      kristaps   75: static v_check   posts_nf[] = { check_eq0, post_nf, NULL };
1.17      kristaps   76: static v_check   posts_par[] = { check_par, NULL };
1.23      kristaps   77: static v_check   posts_part[] = { check_part, NULL };
1.73      kristaps   78: static v_check   posts_sec[] = { post_sec, NULL };
1.70      kristaps   79: static v_check   posts_sp[] = { post_vs, check_le1, NULL };
1.60      schwarze   80: static v_check   posts_th[] = { check_ge2, check_le5, post_TH, NULL };
1.51      kristaps   81: static v_check   posts_uc[] = { post_UC, NULL };
1.78      schwarze   82: static v_check   pres_sec[] = { pre_sec, NULL };
1.1       kristaps   83:
                     84: static const struct man_valid man_valids[MAN_MAX] = {
1.70      kristaps   85:        { NULL, posts_br }, /* br */
1.78      schwarze   86:        { NULL, posts_th }, /* TH */
1.73      kristaps   87:        { pres_sec, posts_sec }, /* SH */
                     88:        { pres_sec, posts_sec }, /* SS */
1.78      schwarze   89:        { NULL, NULL }, /* TP */
                     90:        { NULL, posts_par }, /* LP */
                     91:        { NULL, posts_par }, /* PP */
                     92:        { NULL, posts_par }, /* P */
1.83    ! schwarze   93:        { NULL, posts_ip }, /* IP */
1.78      schwarze   94:        { NULL, NULL }, /* HP */
1.22      kristaps   95:        { NULL, NULL }, /* SM */
                     96:        { NULL, NULL }, /* SB */
1.17      kristaps   97:        { NULL, NULL }, /* BI */
                     98:        { NULL, NULL }, /* IB */
                     99:        { NULL, NULL }, /* BR */
                    100:        { NULL, NULL }, /* RB */
1.22      kristaps  101:        { NULL, NULL }, /* R */
                    102:        { NULL, NULL }, /* B */
                    103:        { NULL, NULL }, /* I */
1.17      kristaps  104:        { NULL, NULL }, /* IR */
                    105:        { NULL, NULL }, /* RI */
1.80      kristaps  106:        { NULL, posts_eq0 }, /* na */
                    107:        { NULL, posts_sp }, /* sp */
1.78      schwarze  108:        { NULL, posts_nf }, /* nf */
                    109:        { NULL, posts_fi }, /* fi */
1.19      kristaps  110:        { NULL, NULL }, /* RE */
1.23      kristaps  111:        { NULL, posts_part }, /* RS */
1.21      kristaps  112:        { NULL, NULL }, /* DT */
1.51      kristaps  113:        { NULL, posts_uc }, /* UC */
1.26      kristaps  114:        { NULL, NULL }, /* PD */
1.51      kristaps  115:        { NULL, posts_at }, /* AT */
1.47      kristaps  116:        { NULL, NULL }, /* in */
1.55      kristaps  117:        { NULL, posts_ft }, /* ft */
1.80      kristaps  118:        { NULL, posts_eq2 }, /* OP */
1.81      schwarze  119:        { NULL, posts_nf }, /* EX */
                    120:        { NULL, posts_fi }, /* EE */
1.1       kristaps  121: };
                    122:
                    123:
                    124: int
1.43      kristaps  125: man_valid_pre(struct man *m, struct man_node *n)
1.17      kristaps  126: {
                    127:        v_check         *cp;
                    128:
1.57      kristaps  129:        switch (n->type) {
                    130:        case (MAN_TEXT):
                    131:                /* FALLTHROUGH */
                    132:        case (MAN_ROOT):
1.61      kristaps  133:                /* FALLTHROUGH */
                    134:        case (MAN_EQN):
1.57      kristaps  135:                /* FALLTHROUGH */
                    136:        case (MAN_TBL):
1.17      kristaps  137:                return(1);
1.57      kristaps  138:        default:
                    139:                break;
                    140:        }
1.17      kristaps  141:
                    142:        if (NULL == (cp = man_valids[n->tok].pres))
                    143:                return(1);
                    144:        for ( ; *cp; cp++)
                    145:                if ( ! (*cp)(m, n))
                    146:                        return(0);
                    147:        return(1);
                    148: }
                    149:
                    150:
                    151: int
1.1       kristaps  152: man_valid_post(struct man *m)
                    153: {
1.17      kristaps  154:        v_check         *cp;
1.1       kristaps  155:
                    156:        if (MAN_VALID & m->last->flags)
                    157:                return(1);
                    158:        m->last->flags |= MAN_VALID;
                    159:
                    160:        switch (m->last->type) {
1.75      kristaps  161:        case (MAN_TEXT):
                    162:                check_text(m, m->last);
                    163:                return(1);
1.1       kristaps  164:        case (MAN_ROOT):
1.14      kristaps  165:                return(check_root(m, m->last));
1.62      kristaps  166:        case (MAN_EQN):
                    167:                /* FALLTHROUGH */
1.57      kristaps  168:        case (MAN_TBL):
                    169:                return(1);
1.1       kristaps  170:        default:
                    171:                break;
                    172:        }
                    173:
                    174:        if (NULL == (cp = man_valids[m->last->tok].posts))
                    175:                return(1);
                    176:        for ( ; *cp; cp++)
                    177:                if ( ! (*cp)(m, m->last))
                    178:                        return(0);
                    179:
                    180:        return(1);
                    181: }
                    182:
                    183:
1.11      kristaps  184: static int
1.17      kristaps  185: check_root(CHKARGS)
1.14      kristaps  186: {
1.17      kristaps  187:
                    188:        if (MAN_BLINE & m->flags)
1.54      kristaps  189:                man_nmsg(m, n, MANDOCERR_SCOPEEXIT);
                    190:        else if (MAN_ELINE & m->flags)
                    191:                man_nmsg(m, n, MANDOCERR_SCOPEEXIT);
1.22      kristaps  192:
                    193:        m->flags &= ~MAN_BLINE;
                    194:        m->flags &= ~MAN_ELINE;
1.17      kristaps  195:
1.41      kristaps  196:        if (NULL == m->first->child) {
                    197:                man_nmsg(m, n, MANDOCERR_NODOCBODY);
                    198:                return(0);
                    199:        } else if (NULL == m->meta.title) {
1.54      kristaps  200:                man_nmsg(m, n, MANDOCERR_NOTITLE);
                    201:
1.34      kristaps  202:                /*
                    203:                 * If a title hasn't been set, do so now (by
                    204:                 * implication, date and section also aren't set).
                    205:                 */
1.54      kristaps  206:
1.34      kristaps  207:                m->meta.title = mandoc_strdup("unknown");
1.37      kristaps  208:                m->meta.msec = mandoc_strdup("1");
1.65      kristaps  209:                m->meta.date = mandoc_normdate
                    210:                        (m->parse, NULL, n->line, n->pos);
1.34      kristaps  211:        }
1.32      kristaps  212:
                    213:        return(1);
1.75      kristaps  214: }
                    215:
                    216: static void
                    217: check_text(CHKARGS)
                    218: {
                    219:        char            *cp, *p;
                    220:
1.76      schwarze  221:        if (MAN_LITERAL & m->flags)
                    222:                return;
                    223:
                    224:        cp = n->string;
                    225:        for (p = cp; NULL != (p = strchr(p, '\t')); p++)
1.75      kristaps  226:                man_pmsg(m, n->line, (int)(p - cp), MANDOCERR_BADTAB);
1.1       kristaps  227: }
                    228:
                    229: #define        INEQ_DEFINE(x, ineq, name) \
                    230: static int \
1.17      kristaps  231: check_##name(CHKARGS) \
1.1       kristaps  232: { \
1.11      kristaps  233:        if (n->nchild ineq (x)) \
1.1       kristaps  234:                return(1); \
1.65      kristaps  235:        mandoc_vmsg(MANDOCERR_ARGCOUNT, m->parse, n->line, n->pos, \
1.41      kristaps  236:                        "line arguments %s %d (have %d)", \
                    237:                        #ineq, (x), n->nchild); \
1.60      schwarze  238:        return(1); \
1.1       kristaps  239: }
                    240:
                    241: INEQ_DEFINE(0, ==, eq0)
1.80      kristaps  242: INEQ_DEFINE(2, ==, eq2)
1.25      kristaps  243: INEQ_DEFINE(1, <=, le1)
1.1       kristaps  244: INEQ_DEFINE(2, >=, ge2)
                    245: INEQ_DEFINE(5, <=, le5)
                    246:
1.55      kristaps  247: static int
1.73      kristaps  248: post_ft(CHKARGS)
1.55      kristaps  249: {
                    250:        char    *cp;
                    251:        int      ok;
                    252:
                    253:        if (0 == n->nchild)
                    254:                return(1);
                    255:
                    256:        ok = 0;
                    257:        cp = n->child->string;
                    258:        switch (*cp) {
                    259:        case ('1'):
                    260:                /* FALLTHROUGH */
                    261:        case ('2'):
                    262:                /* FALLTHROUGH */
                    263:        case ('3'):
                    264:                /* FALLTHROUGH */
                    265:        case ('4'):
                    266:                /* FALLTHROUGH */
                    267:        case ('I'):
                    268:                /* FALLTHROUGH */
                    269:        case ('P'):
                    270:                /* FALLTHROUGH */
                    271:        case ('R'):
                    272:                if ('\0' == cp[1])
                    273:                        ok = 1;
                    274:                break;
                    275:        case ('B'):
                    276:                if ('\0' == cp[1] || ('I' == cp[1] && '\0' == cp[2]))
                    277:                        ok = 1;
                    278:                break;
                    279:        case ('C'):
                    280:                if ('W' == cp[1] && '\0' == cp[2])
                    281:                        ok = 1;
                    282:                break;
                    283:        default:
                    284:                break;
                    285:        }
                    286:
                    287:        if (0 == ok) {
1.65      kristaps  288:                mandoc_vmsg
                    289:                        (MANDOCERR_BADFONT, m->parse,
                    290:                         n->line, n->pos, "%s", cp);
1.55      kristaps  291:                *cp = '\0';
                    292:        }
                    293:
                    294:        if (1 < n->nchild)
1.65      kristaps  295:                mandoc_vmsg
                    296:                        (MANDOCERR_ARGCOUNT, m->parse, n->line,
                    297:                         n->pos, "want one child (have %d)",
                    298:                         n->nchild);
1.55      kristaps  299:
                    300:        return(1);
                    301: }
1.16      kristaps  302:
                    303: static int
1.73      kristaps  304: pre_sec(CHKARGS)
                    305: {
                    306:
                    307:        if (MAN_BLOCK == n->type)
                    308:                m->flags &= ~MAN_LITERAL;
                    309:        return(1);
                    310: }
                    311:
                    312: static int
                    313: post_sec(CHKARGS)
1.17      kristaps  314: {
1.16      kristaps  315:
1.69      kristaps  316:        if ( ! (MAN_HEAD == n->type && 0 == n->nchild))
                    317:                return(1);
1.41      kristaps  318:
1.69      kristaps  319:        man_nmsg(m, n, MANDOCERR_SYNTARGCOUNT);
                    320:        return(0);
1.16      kristaps  321: }
1.17      kristaps  322:
                    323: static int
1.23      kristaps  324: check_part(CHKARGS)
                    325: {
                    326:
                    327:        if (MAN_BODY == n->type && 0 == n->nchild)
1.67      kristaps  328:                mandoc_msg(MANDOCERR_ARGCWARN, m->parse, n->line,
                    329:                                n->pos, "want children (have none)");
1.54      kristaps  330:
1.23      kristaps  331:        return(1);
                    332: }
                    333:
                    334:
                    335: static int
1.17      kristaps  336: check_par(CHKARGS)
                    337: {
                    338:
1.59      kristaps  339:        switch (n->type) {
                    340:        case (MAN_BLOCK):
                    341:                if (0 == n->body->nchild)
                    342:                        man_node_delete(m, n);
                    343:                break;
                    344:        case (MAN_BODY):
                    345:                if (0 == n->nchild)
                    346:                        man_nmsg(m, n, MANDOCERR_IGNPAR);
                    347:                break;
                    348:        case (MAN_HEAD):
                    349:                if (n->nchild)
                    350:                        man_nmsg(m, n, MANDOCERR_ARGSLOST);
                    351:                break;
                    352:        default:
                    353:                break;
                    354:        }
1.17      kristaps  355:
                    356:        return(1);
                    357: }
                    358:
1.83    ! schwarze  359: static int
        !           360: post_IP(CHKARGS)
        !           361: {
        !           362:
        !           363:        switch (n->type) {
        !           364:        case (MAN_BLOCK):
        !           365:                if (0 == n->head->nchild && 0 == n->body->nchild)
        !           366:                        man_node_delete(m, n);
        !           367:                break;
        !           368:        case (MAN_BODY):
        !           369:                if (0 == n->parent->head->nchild && 0 == n->nchild)
        !           370:                        man_nmsg(m, n, MANDOCERR_IGNPAR);
        !           371:                break;
        !           372:        default:
        !           373:                break;
        !           374:        }
        !           375:        return(1);
        !           376: }
1.17      kristaps  377:
1.51      kristaps  378: static int
                    379: post_TH(CHKARGS)
                    380: {
1.60      schwarze  381:        const char      *p;
1.63      schwarze  382:        int              line, pos;
1.51      kristaps  383:
                    384:        if (m->meta.title)
                    385:                free(m->meta.title);
                    386:        if (m->meta.vol)
                    387:                free(m->meta.vol);
                    388:        if (m->meta.source)
                    389:                free(m->meta.source);
                    390:        if (m->meta.msec)
                    391:                free(m->meta.msec);
1.63      schwarze  392:        if (m->meta.date)
                    393:                free(m->meta.date);
1.51      kristaps  394:
1.63      schwarze  395:        line = n->line;
                    396:        pos = n->pos;
                    397:        m->meta.title = m->meta.vol = m->meta.date =
1.51      kristaps  398:                m->meta.msec = m->meta.source = NULL;
                    399:
                    400:        /* ->TITLE<- MSEC DATE SOURCE VOL */
                    401:
                    402:        n = n->child;
1.60      schwarze  403:        if (n && n->string) {
                    404:                for (p = n->string; '\0' != *p; p++) {
                    405:                        /* Only warn about this once... */
1.71      kristaps  406:                        if (isalpha((unsigned char)*p) &&
                    407:                                        ! isupper((unsigned char)*p)) {
1.60      schwarze  408:                                man_nmsg(m, n, MANDOCERR_UPPERCASE);
                    409:                                break;
                    410:                        }
                    411:                }
                    412:                m->meta.title = mandoc_strdup(n->string);
                    413:        } else
                    414:                m->meta.title = mandoc_strdup("");
1.51      kristaps  415:
                    416:        /* TITLE ->MSEC<- DATE SOURCE VOL */
                    417:
1.60      schwarze  418:        if (n)
                    419:                n = n->next;
                    420:        if (n && n->string)
                    421:                m->meta.msec = mandoc_strdup(n->string);
                    422:        else
                    423:                m->meta.msec = mandoc_strdup("");
1.51      kristaps  424:
                    425:        /* TITLE MSEC ->DATE<- SOURCE VOL */
                    426:
1.60      schwarze  427:        if (n)
                    428:                n = n->next;
1.77      schwarze  429:        if (n && n->string && '\0' != n->string[0]) {
1.63      schwarze  430:                pos = n->pos;
1.77      schwarze  431:                m->meta.date = mandoc_normdate
                    432:                    (m->parse, n->string, line, pos);
                    433:        } else
                    434:                m->meta.date = mandoc_strdup("");
1.51      kristaps  435:
                    436:        /* TITLE MSEC DATE ->SOURCE<- VOL */
                    437:
                    438:        if (n && (n = n->next))
                    439:                m->meta.source = mandoc_strdup(n->string);
                    440:
                    441:        /* TITLE MSEC DATE SOURCE ->VOL<- */
1.79      schwarze  442:        /* If missing, use the default VOL name for MSEC. */
1.51      kristaps  443:
                    444:        if (n && (n = n->next))
                    445:                m->meta.vol = mandoc_strdup(n->string);
1.79      schwarze  446:        else if ('\0' != m->meta.msec[0] &&
                    447:            (NULL != (p = mandoc_a2msec(m->meta.msec))))
                    448:                m->meta.vol = mandoc_strdup(p);
1.51      kristaps  449:
                    450:        /*
                    451:         * Remove the `TH' node after we've processed it for our
                    452:         * meta-data.
                    453:         */
                    454:        man_node_delete(m, m->last);
                    455:        return(1);
                    456: }
                    457:
                    458: static int
                    459: post_nf(CHKARGS)
                    460: {
                    461:
                    462:        if (MAN_LITERAL & m->flags)
                    463:                man_nmsg(m, n, MANDOCERR_SCOPEREP);
                    464:
                    465:        m->flags |= MAN_LITERAL;
                    466:        return(1);
                    467: }
                    468:
                    469: static int
                    470: post_fi(CHKARGS)
                    471: {
                    472:
                    473:        if ( ! (MAN_LITERAL & m->flags))
1.58      kristaps  474:                man_nmsg(m, n, MANDOCERR_WNOSCOPE);
1.51      kristaps  475:
                    476:        m->flags &= ~MAN_LITERAL;
                    477:        return(1);
                    478: }
                    479:
                    480: static int
                    481: post_UC(CHKARGS)
                    482: {
                    483:        static const char * const bsd_versions[] = {
                    484:            "3rd Berkeley Distribution",
                    485:            "4th Berkeley Distribution",
                    486:            "4.2 Berkeley Distribution",
                    487:            "4.3 Berkeley Distribution",
                    488:            "4.4 Berkeley Distribution",
                    489:        };
                    490:
                    491:        const char      *p, *s;
                    492:
                    493:        n = n->child;
                    494:
                    495:        if (NULL == n || MAN_TEXT != n->type)
                    496:                p = bsd_versions[0];
                    497:        else {
                    498:                s = n->string;
                    499:                if (0 == strcmp(s, "3"))
                    500:                        p = bsd_versions[0];
                    501:                else if (0 == strcmp(s, "4"))
                    502:                        p = bsd_versions[1];
                    503:                else if (0 == strcmp(s, "5"))
                    504:                        p = bsd_versions[2];
                    505:                else if (0 == strcmp(s, "6"))
                    506:                        p = bsd_versions[3];
                    507:                else if (0 == strcmp(s, "7"))
                    508:                        p = bsd_versions[4];
                    509:                else
                    510:                        p = bsd_versions[0];
                    511:        }
                    512:
                    513:        if (m->meta.source)
                    514:                free(m->meta.source);
                    515:
                    516:        m->meta.source = mandoc_strdup(p);
                    517:        return(1);
                    518: }
                    519:
                    520: static int
                    521: post_AT(CHKARGS)
                    522: {
                    523:        static const char * const unix_versions[] = {
                    524:            "7th Edition",
                    525:            "System III",
                    526:            "System V",
                    527:            "System V Release 2",
                    528:        };
                    529:
                    530:        const char      *p, *s;
                    531:        struct man_node *nn;
                    532:
                    533:        n = n->child;
                    534:
                    535:        if (NULL == n || MAN_TEXT != n->type)
                    536:                p = unix_versions[0];
                    537:        else {
                    538:                s = n->string;
                    539:                if (0 == strcmp(s, "3"))
                    540:                        p = unix_versions[0];
                    541:                else if (0 == strcmp(s, "4"))
                    542:                        p = unix_versions[1];
                    543:                else if (0 == strcmp(s, "5")) {
                    544:                        nn = n->next;
                    545:                        if (nn && MAN_TEXT == nn->type && nn->string[0])
                    546:                                p = unix_versions[3];
                    547:                        else
                    548:                                p = unix_versions[2];
                    549:                } else
                    550:                        p = unix_versions[0];
                    551:        }
                    552:
                    553:        if (m->meta.source)
                    554:                free(m->meta.source);
                    555:
                    556:        m->meta.source = mandoc_strdup(p);
1.70      kristaps  557:        return(1);
                    558: }
                    559:
                    560: static int
                    561: post_vs(CHKARGS)
                    562: {
                    563:
1.82      schwarze  564:        if (NULL != n->prev)
                    565:                return(1);
                    566:
                    567:        switch (n->parent->tok) {
                    568:        case (MAN_SH):
                    569:                /* FALLTHROUGH */
                    570:        case (MAN_SS):
                    571:                man_nmsg(m, n, MANDOCERR_IGNPAR);
                    572:                /* FALLTHROUGH */
                    573:        case (MAN_MAX):
                    574:                /*
                    575:                 * Don't warn about this because it occurs in pod2man
                    576:                 * and would cause considerable (unfixable) warnage.
                    577:                 */
1.70      kristaps  578:                man_node_delete(m, n);
1.82      schwarze  579:                break;
                    580:        default:
                    581:                break;
                    582:        }
1.70      kristaps  583:
1.51      kristaps  584:        return(1);
                    585: }

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