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Annotation of mandoc/mdoc.c, Revision 1.261

1.261   ! schwarze    1: /*     $Id: mdoc.c,v 1.260 2017/02/16 03:00:23 schwarze Exp $ */
1.1       kristaps    2: /*
1.182     schwarze    3:  * Copyright (c) 2008, 2009, 2010, 2011 Kristaps Dzonsons <kristaps@bsd.lv>
1.259     schwarze    4:  * Copyright (c) 2010, 2012-2017 Ingo Schwarze <schwarze@openbsd.org>
1.1       kristaps    5:  *
                      6:  * Permission to use, copy, modify, and distribute this software for any
1.75      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:  *
1.241     schwarze   10:  * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHORS DISCLAIM ALL WARRANTIES
1.75      kristaps   11:  * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
1.241     schwarze   12:  * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR
1.75      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.
1.1       kristaps   17:  */
1.114     kristaps   18: #include "config.h"
                     19:
1.106     kristaps   20: #include <sys/types.h>
                     21:
1.1       kristaps   22: #include <assert.h>
1.211     schwarze   23: #include <ctype.h>
1.1       kristaps   24: #include <stdarg.h>
1.73      kristaps   25: #include <stdio.h>
1.1       kristaps   26: #include <stdlib.h>
                     27: #include <string.h>
1.120     kristaps   28: #include <time.h>
1.1       kristaps   29:
1.239     schwarze   30: #include "mandoc_aux.h"
                     31: #include "mandoc.h"
                     32: #include "roff.h"
1.187     kristaps   33: #include "mdoc.h"
1.239     schwarze   34: #include "libmandoc.h"
1.247     schwarze   35: #include "roff_int.h"
1.70      kristaps   36: #include "libmdoc.h"
1.1       kristaps   37:
1.216     schwarze   38: const  char *const __mdoc_macronames[MDOC_MAX + 1] = {
1.248     schwarze   39:        "text",
1.82      kristaps   40:        "Ap",           "Dd",           "Dt",           "Os",
1.1       kristaps   41:        "Sh",           "Ss",           "Pp",           "D1",
                     42:        "Dl",           "Bd",           "Ed",           "Bl",
                     43:        "El",           "It",           "Ad",           "An",
                     44:        "Ar",           "Cd",           "Cm",           "Dv",
                     45:        "Er",           "Ev",           "Ex",           "Fa",
                     46:        "Fd",           "Fl",           "Fn",           "Ft",
                     47:        "Ic",           "In",           "Li",           "Nd",
                     48:        "Nm",           "Op",           "Ot",           "Pa",
                     49:        "Rv",           "St",           "Va",           "Vt",
1.114     kristaps   50:        "Xr",           "%A",           "%B",           "%D",
                     51:        "%I",           "%J",           "%N",           "%O",
                     52:        "%P",           "%R",           "%T",           "%V",
1.1       kristaps   53:        "Ac",           "Ao",           "Aq",           "At",
                     54:        "Bc",           "Bf",           "Bo",           "Bq",
                     55:        "Bsx",          "Bx",           "Db",           "Dc",
                     56:        "Do",           "Dq",           "Ec",           "Ef",
                     57:        "Em",           "Eo",           "Fx",           "Ms",
                     58:        "No",           "Ns",           "Nx",           "Ox",
                     59:        "Pc",           "Pf",           "Po",           "Pq",
                     60:        "Qc",           "Ql",           "Qo",           "Qq",
                     61:        "Re",           "Rs",           "Sc",           "So",
                     62:        "Sq",           "Sm",           "Sx",           "Sy",
                     63:        "Tn",           "Ux",           "Xc",           "Xo",
                     64:        "Fo",           "Fc",           "Oo",           "Oc",
                     65:        "Bk",           "Ek",           "Bt",           "Hf",
1.82      kristaps   66:        "Fr",           "Ud",           "Lb",           "Lp",
                     67:        "Lk",           "Mt",           "Brq",          "Bro",
1.114     kristaps   68:        "Brc",          "%C",           "Es",           "En",
                     69:        "Dx",           "%Q",           "br",           "sp",
1.248     schwarze   70:        "%U",           "Ta",           "ll",
                     71: };
1.1       kristaps   72:
1.213     schwarze   73: const  char *const __mdoc_argnames[MDOC_ARG_MAX] = {
1.1       kristaps   74:        "split",                "nosplit",              "ragged",
1.213     schwarze   75:        "unfilled",             "literal",              "file",
                     76:        "offset",               "bullet",               "dash",
                     77:        "hyphen",               "item",                 "enum",
                     78:        "tag",                  "diag",                 "hang",
                     79:        "ohang",                "inset",                "column",
                     80:        "width",                "compact",              "std",
1.52      kristaps   81:        "filled",               "words",                "emphasis",
1.108     kristaps   82:        "symbolic",             "nested",               "centered"
1.1       kristaps   83:        };
                     84:
1.248     schwarze   85: const  char * const *mdoc_macronames = __mdoc_macronames + 1;
1.1       kristaps   86: const  char * const *mdoc_argnames = __mdoc_argnames;
                     87:
1.242     schwarze   88: static int               mdoc_ptext(struct roff_man *, int, char *, int);
                     89: static int               mdoc_pmacro(struct roff_man *, int, char *, int);
1.88      kristaps   90:
1.181     kristaps   91:
1.50      kristaps   92: /*
1.53      kristaps   93:  * Main parse routine.  Parses a single line -- really just hands off to
1.123     kristaps   94:  * the macro (mdoc_pmacro()) or text parser (mdoc_ptext()).
1.50      kristaps   95:  */
1.20      kristaps   96: int
1.242     schwarze   97: mdoc_parseln(struct roff_man *mdoc, int ln, char *buf, int offs)
1.1       kristaps   98: {
                     99:
1.239     schwarze  100:        if (mdoc->last->type != ROFFT_EQN || ln > mdoc->last->line)
1.228     schwarze  101:                mdoc->flags |= MDOC_NEWLINE;
1.153     schwarze  102:
                    103:        /*
                    104:         * Let the roff nS register switch SYNOPSIS mode early,
                    105:         * such that the parser knows at all times
                    106:         * whether this mode is on or off.
                    107:         * Note that this mode is also switched by the Sh macro.
                    108:         */
1.204     schwarze  109:        if (roff_getreg(mdoc->roff, "nS"))
                    110:                mdoc->flags |= MDOC_SYNOPSIS;
                    111:        else
                    112:                mdoc->flags &= ~MDOC_SYNOPSIS;
1.153     schwarze  113:
1.253     schwarze  114:        return roff_getcontrol(mdoc->roff, buf, &offs) ?
1.213     schwarze  115:            mdoc_pmacro(mdoc, ln, buf, offs) :
1.253     schwarze  116:            mdoc_ptext(mdoc, ln, buf, offs);
1.1       kristaps  117: }
                    118:
1.232     schwarze  119: void
1.148     kristaps  120: mdoc_macro(MACRO_PROT_ARGS)
1.88      kristaps  121: {
1.248     schwarze  122:        assert(tok > TOKEN_NONE && tok < MDOC_MAX);
1.122     kristaps  123:
1.232     schwarze  124:        (*mdoc_macros[tok].fp)(mdoc, tok, line, ppos, pos, buf);
1.73      kristaps  125: }
                    126:
1.231     schwarze  127: void
1.242     schwarze  128: mdoc_tail_alloc(struct roff_man *mdoc, int line, int pos, int tok)
1.17      kristaps  129: {
1.240     schwarze  130:        struct roff_node *p;
1.17      kristaps  131:
1.247     schwarze  132:        p = roff_node_alloc(mdoc, line, pos, ROFFT_TAIL, tok);
                    133:        roff_node_append(mdoc, p);
1.242     schwarze  134:        mdoc->next = ROFF_NEXT_CHILD;
1.152     schwarze  135: }
                    136:
1.240     schwarze  137: struct roff_node *
1.242     schwarze  138: mdoc_endbody_alloc(struct roff_man *mdoc, int line, int pos, int tok,
1.260     schwarze  139:                struct roff_node *body)
1.152     schwarze  140: {
1.240     schwarze  141:        struct roff_node *p;
1.152     schwarze  142:
1.258     schwarze  143:        body->flags |= NODE_ENDED;
                    144:        body->parent->flags |= NODE_ENDED;
1.247     schwarze  145:        p = roff_node_alloc(mdoc, line, pos, ROFFT_BODY, tok);
1.237     schwarze  146:        p->body = body;
1.202     schwarze  147:        p->norm = body->norm;
1.260     schwarze  148:        p->end = ENDBODY_SPACE;
1.247     schwarze  149:        roff_node_append(mdoc, p);
1.242     schwarze  150:        mdoc->next = ROFF_NEXT_SIBLING;
1.253     schwarze  151:        return p;
1.1       kristaps  152: }
                    153:
1.240     schwarze  154: struct roff_node *
1.242     schwarze  155: mdoc_block_alloc(struct roff_man *mdoc, int line, int pos,
1.240     schwarze  156:        int tok, struct mdoc_arg *args)
1.1       kristaps  157: {
1.240     schwarze  158:        struct roff_node *p;
1.1       kristaps  159:
1.247     schwarze  160:        p = roff_node_alloc(mdoc, line, pos, ROFFT_BLOCK, tok);
1.77      kristaps  161:        p->args = args;
                    162:        if (p->args)
1.53      kristaps  163:                (args->refcnt)++;
1.172     kristaps  164:
                    165:        switch (tok) {
1.213     schwarze  166:        case MDOC_Bd:
                    167:        case MDOC_Bf:
                    168:        case MDOC_Bl:
1.217     schwarze  169:        case MDOC_En:
1.213     schwarze  170:        case MDOC_Rs:
1.172     kristaps  171:                p->norm = mandoc_calloc(1, sizeof(union mdoc_data));
                    172:                break;
                    173:        default:
                    174:                break;
                    175:        }
1.247     schwarze  176:        roff_node_append(mdoc, p);
1.242     schwarze  177:        mdoc->next = ROFF_NEXT_CHILD;
1.253     schwarze  178:        return p;
1.1       kristaps  179: }
                    180:
1.231     schwarze  181: void
1.242     schwarze  182: mdoc_elem_alloc(struct roff_man *mdoc, int line, int pos,
1.240     schwarze  183:        int tok, struct mdoc_arg *args)
1.1       kristaps  184: {
1.240     schwarze  185:        struct roff_node *p;
1.1       kristaps  186:
1.247     schwarze  187:        p = roff_node_alloc(mdoc, line, pos, ROFFT_ELEM, tok);
1.77      kristaps  188:        p->args = args;
                    189:        if (p->args)
1.53      kristaps  190:                (args->refcnt)++;
1.172     kristaps  191:
                    192:        switch (tok) {
1.213     schwarze  193:        case MDOC_An:
1.172     kristaps  194:                p->norm = mandoc_calloc(1, sizeof(union mdoc_data));
                    195:                break;
                    196:        default:
                    197:                break;
                    198:        }
1.247     schwarze  199:        roff_node_append(mdoc, p);
1.242     schwarze  200:        mdoc->next = ROFF_NEXT_CHILD;
1.175     kristaps  201: }
1.1       kristaps  202:
1.231     schwarze  203: void
1.242     schwarze  204: mdoc_node_relink(struct roff_man *mdoc, struct roff_node *p)
1.201     schwarze  205: {
                    206:
1.247     schwarze  207:        roff_node_unlink(mdoc, p);
1.256     schwarze  208:        p->prev = p->next = NULL;
1.247     schwarze  209:        roff_node_append(mdoc, p);
1.1       kristaps  210: }
                    211:
1.53      kristaps  212: /*
                    213:  * Parse free-form text, that is, a line that does not begin with the
                    214:  * control character.
                    215:  */
                    216: static int
1.242     schwarze  217: mdoc_ptext(struct roff_man *mdoc, int line, char *buf, int offs)
1.1       kristaps  218: {
1.240     schwarze  219:        struct roff_node *n;
1.142     kristaps  220:        char             *c, *ws, *end;
                    221:
1.203     schwarze  222:        n = mdoc->last;
1.142     kristaps  223:
                    224:        /*
1.257     schwarze  225:         * If a column list contains plain text, assume an implicit item
                    226:         * macro.  This can happen one or more times at the beginning
                    227:         * of such a list, intermixed with non-It mdoc macros and with
                    228:         * nodes generated on the roff level, for example by tbl.
1.142     kristaps  229:         */
                    230:
1.257     schwarze  231:        if ((n->tok == MDOC_Bl && n->type == ROFFT_BODY &&
                    232:             n->end == ENDBODY_NOT && n->norm->Bl.type == LIST_column) ||
                    233:            (n->parent != NULL && n->parent->tok == MDOC_Bl &&
                    234:             n->parent->norm->Bl.type == LIST_column)) {
1.203     schwarze  235:                mdoc->flags |= MDOC_FREECOL;
1.232     schwarze  236:                mdoc_macro(mdoc, MDOC_It, line, offs, &offs, buf);
1.253     schwarze  237:                return 1;
1.142     kristaps  238:        }
1.124     kristaps  239:
1.137     schwarze  240:        /*
                    241:         * Search for the beginning of unescaped trailing whitespace (ws)
                    242:         * and for the first character not to be output (end).
                    243:         */
1.139     kristaps  244:
                    245:        /* FIXME: replace with strcspn(). */
1.137     schwarze  246:        ws = NULL;
                    247:        for (c = end = buf + offs; *c; c++) {
                    248:                switch (*c) {
                    249:                case ' ':
                    250:                        if (NULL == ws)
                    251:                                ws = c;
                    252:                        continue;
                    253:                case '\t':
                    254:                        /*
                    255:                         * Always warn about trailing tabs,
                    256:                         * even outside literal context,
                    257:                         * where they should be put on the next line.
                    258:                         */
                    259:                        if (NULL == ws)
                    260:                                ws = c;
                    261:                        /*
                    262:                         * Strip trailing tabs in literal context only;
                    263:                         * outside, they affect the next line.
                    264:                         */
1.203     schwarze  265:                        if (MDOC_LITERAL & mdoc->flags)
1.137     schwarze  266:                                continue;
                    267:                        break;
                    268:                case '\\':
                    269:                        /* Skip the escaped character, too, if any. */
                    270:                        if (c[1])
                    271:                                c++;
                    272:                        /* FALLTHROUGH */
                    273:                default:
                    274:                        ws = NULL;
                    275:                        break;
                    276:                }
                    277:                end = c + 1;
                    278:        }
                    279:        *end = '\0';
1.91      kristaps  280:
1.137     schwarze  281:        if (ws)
1.218     schwarze  282:                mandoc_msg(MANDOCERR_SPACE_EOL, mdoc->parse,
                    283:                    line, (int)(ws-buf), NULL);
1.115     kristaps  284:
1.231     schwarze  285:        if (buf[offs] == '\0' && ! (mdoc->flags & MDOC_LITERAL)) {
1.218     schwarze  286:                mandoc_msg(MANDOCERR_FI_BLANK, mdoc->parse,
                    287:                    line, (int)(c - buf), NULL);
1.124     kristaps  288:
1.119     kristaps  289:                /*
1.165     schwarze  290:                 * Insert a `sp' in the case of a blank line.  Technically,
1.124     kristaps  291:                 * blank lines aren't allowed, but enough manuals assume this
                    292:                 * behaviour that we want to work around it.
1.119     kristaps  293:                 */
1.250     schwarze  294:                roff_elem_alloc(mdoc, line, offs, MDOC_sp);
1.258     schwarze  295:                mdoc->last->flags |= NODE_VALID | NODE_ENDED;
1.242     schwarze  296:                mdoc->next = ROFF_NEXT_SIBLING;
1.253     schwarze  297:                return 1;
1.119     kristaps  298:        }
1.68      kristaps  299:
1.249     schwarze  300:        roff_word_alloc(mdoc, line, offs, buf+offs);
1.91      kristaps  301:
1.231     schwarze  302:        if (mdoc->flags & MDOC_LITERAL)
1.253     schwarze  303:                return 1;
1.128     kristaps  304:
                    305:        /*
                    306:         * End-of-sentence check.  If the last character is an unescaped
                    307:         * EOS character, then flag the node as being the end of a
                    308:         * sentence.  The front-end will know how to interpret this.
                    309:         */
1.132     kristaps  310:
1.137     schwarze  311:        assert(buf < end);
                    312:
1.207     schwarze  313:        if (mandoc_eos(buf+offs, (size_t)(end-buf-offs)))
1.258     schwarze  314:                mdoc->last->flags |= NODE_EOS;
1.259     schwarze  315:
                    316:        for (c = buf + offs; c != NULL; c = strchr(c + 1, '.')) {
                    317:                if (c - buf < offs + 2)
                    318:                        continue;
                    319:                if (end - c < 4)
                    320:                        break;
                    321:                if (isalpha((unsigned char)c[-2]) &&
                    322:                    isalpha((unsigned char)c[-1]) &&
                    323:                    c[1] == ' ' &&
                    324:                    isupper((unsigned char)(c[2] == ' ' ? c[3] : c[2])) &&
                    325:                    (c[-2] != 'n' || c[-1] != 'c') &&
                    326:                    (c[-2] != 'v' || c[-1] != 's'))
                    327:                        mandoc_msg(MANDOCERR_EOS, mdoc->parse,
                    328:                            line, (int)(c - buf), NULL);
                    329:        }
                    330:
1.253     schwarze  331:        return 1;
1.1       kristaps  332: }
                    333:
1.53      kristaps  334: /*
                    335:  * Parse a macro line, that is, a line beginning with the control
                    336:  * character.
                    337:  */
1.155     kristaps  338: static int
1.242     schwarze  339: mdoc_pmacro(struct roff_man *mdoc, int ln, char *buf, int offs)
1.1       kristaps  340: {
1.240     schwarze  341:        struct roff_node *n;
1.229     schwarze  342:        const char       *cp;
1.240     schwarze  343:        int               tok;
1.188     kristaps  344:        int               i, sv;
1.144     kristaps  345:        char              mac[5];
1.63      kristaps  346:
1.188     kristaps  347:        sv = offs;
1.130     kristaps  348:
1.213     schwarze  349:        /*
1.162     schwarze  350:         * Copy the first word into a nil-terminated buffer.
1.229     schwarze  351:         * Stop when a space, tab, escape, or eoln is encountered.
1.160     kristaps  352:         */
1.1       kristaps  353:
1.188     kristaps  354:        i = 0;
1.229     schwarze  355:        while (i < 4 && strchr(" \t\\", buf[offs]) == NULL)
1.188     kristaps  356:                mac[i++] = buf[offs++];
                    357:
                    358:        mac[i] = '\0';
                    359:
1.248     schwarze  360:        tok = (i > 1 && i < 4) ? mdoc_hash_find(mac) : TOKEN_NONE;
1.1       kristaps  361:
1.248     schwarze  362:        if (tok == TOKEN_NONE) {
1.222     schwarze  363:                mandoc_msg(MANDOCERR_MACRO, mdoc->parse,
                    364:                    ln, sv, buf + sv - 1);
1.253     schwarze  365:                return 1;
1.53      kristaps  366:        }
1.1       kristaps  367:
1.229     schwarze  368:        /* Skip a leading escape sequence or tab. */
1.160     kristaps  369:
1.229     schwarze  370:        switch (buf[offs]) {
                    371:        case '\\':
                    372:                cp = buf + offs + 1;
                    373:                mandoc_escape(&cp, NULL, NULL);
                    374:                offs = cp - buf;
                    375:                break;
                    376:        case '\t':
1.188     kristaps  377:                offs++;
1.229     schwarze  378:                break;
                    379:        default:
                    380:                break;
                    381:        }
1.160     kristaps  382:
                    383:        /* Jump to the next non-whitespace word. */
1.1       kristaps  384:
1.261   ! schwarze  385:        while (buf[offs] == ' ')
1.188     kristaps  386:                offs++;
1.1       kristaps  387:
1.213     schwarze  388:        /*
1.125     kristaps  389:         * Trailing whitespace.  Note that tabs are allowed to be passed
                    390:         * into the parser as "text", so we only warn about spaces here.
                    391:         */
1.115     kristaps  392:
1.188     kristaps  393:        if ('\0' == buf[offs] && ' ' == buf[offs - 1])
1.218     schwarze  394:                mandoc_msg(MANDOCERR_SPACE_EOL, mdoc->parse,
                    395:                    ln, offs - 1, NULL);
1.115     kristaps  396:
1.144     kristaps  397:        /*
                    398:         * If an initial macro or a list invocation, divert directly
                    399:         * into macro processing.
                    400:         */
                    401:
1.257     schwarze  402:        n = mdoc->last;
                    403:        if (n == NULL || tok == MDOC_It || tok == MDOC_El) {
1.232     schwarze  404:                mdoc_macro(mdoc, tok, ln, sv, &offs, buf);
1.253     schwarze  405:                return 1;
1.232     schwarze  406:        }
1.144     kristaps  407:
                    408:        /*
1.257     schwarze  409:         * If a column list contains a non-It macro, assume an implicit
                    410:         * item macro.  This can happen one or more times at the
                    411:         * beginning of such a list, intermixed with text lines and
                    412:         * with nodes generated on the roff level, for example by tbl.
1.98      kristaps  413:         */
1.144     kristaps  414:
1.257     schwarze  415:        if ((n->tok == MDOC_Bl && n->type == ROFFT_BODY &&
                    416:             n->end == ENDBODY_NOT && n->norm->Bl.type == LIST_column) ||
                    417:            (n->parent != NULL && n->parent->tok == MDOC_Bl &&
                    418:             n->parent->norm->Bl.type == LIST_column)) {
1.203     schwarze  419:                mdoc->flags |= MDOC_FREECOL;
1.232     schwarze  420:                mdoc_macro(mdoc, MDOC_It, ln, sv, &sv, buf);
1.253     schwarze  421:                return 1;
1.144     kristaps  422:        }
                    423:
                    424:        /* Normal processing of a macro. */
                    425:
1.232     schwarze  426:        mdoc_macro(mdoc, tok, ln, sv, &offs, buf);
1.208     schwarze  427:
                    428:        /* In quick mode (for mandocdb), abort after the NAME section. */
                    429:
                    430:        if (mdoc->quick && MDOC_Sh == tok &&
                    431:            SEC_NAME != mdoc->last->sec)
1.253     schwarze  432:                return 2;
1.1       kristaps  433:
1.253     schwarze  434:        return 1;
1.1       kristaps  435: }
1.100     kristaps  436:
1.186     kristaps  437: enum mdelim
                    438: mdoc_isdelim(const char *p)
                    439: {
                    440:
                    441:        if ('\0' == p[0])
1.253     schwarze  442:                return DELIM_NONE;
1.186     kristaps  443:
                    444:        if ('\0' == p[1])
                    445:                switch (p[0]) {
1.213     schwarze  446:                case '(':
                    447:                case '[':
1.253     schwarze  448:                        return DELIM_OPEN;
1.213     schwarze  449:                case '|':
1.253     schwarze  450:                        return DELIM_MIDDLE;
1.213     schwarze  451:                case '.':
                    452:                case ',':
                    453:                case ';':
                    454:                case ':':
                    455:                case '?':
                    456:                case '!':
                    457:                case ')':
                    458:                case ']':
1.253     schwarze  459:                        return DELIM_CLOSE;
1.186     kristaps  460:                default:
1.253     schwarze  461:                        return DELIM_NONE;
1.186     kristaps  462:                }
                    463:
                    464:        if ('\\' != p[0])
1.253     schwarze  465:                return DELIM_NONE;
1.100     kristaps  466:
1.186     kristaps  467:        if (0 == strcmp(p + 1, "."))
1.253     schwarze  468:                return DELIM_CLOSE;
1.200     schwarze  469:        if (0 == strcmp(p + 1, "fR|\\fP"))
1.253     schwarze  470:                return DELIM_MIDDLE;
1.186     kristaps  471:
1.253     schwarze  472:        return DELIM_NONE;
1.255     schwarze  473: }
                    474:
                    475: void
                    476: mdoc_validate(struct roff_man *mdoc)
                    477: {
                    478:
                    479:        mdoc->last = mdoc->first;
                    480:        mdoc_node_validate(mdoc);
                    481:        mdoc_state_reset(mdoc);
1.186     kristaps  482: }

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