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Annotation of mandoc/man_macro.c, Revision 1.41

1.41    ! kristaps    1: /*     $Id: man_macro.c,v 1.40 2010/03/27 10:14:32 kristaps Exp $ */
1.1       kristaps    2: /*
1.15      kristaps    3:  * Copyright (c) 2008, 2009 Kristaps Dzonsons <kristaps@kth.se>
1.1       kristaps    4:  *
                      5:  * Permission to use, copy, modify, and distribute this software for any
1.14      kristaps    6:  * purpose with or without fee is hereby granted, provided that the above
                      7:  * copyright notice and this permission notice appear in all copies.
1.1       kristaps    8:  *
1.14      kristaps    9:  * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
                     10:  * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
                     11:  * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
                     12:  * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
                     13:  * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
                     14:  * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
                     15:  * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
1.1       kristaps   16:  */
1.30      kristaps   17: #ifdef HAVE_CONFIG_H
                     18: #include "config.h"
                     19: #endif
                     20:
1.1       kristaps   21: #include <assert.h>
                     22: #include <ctype.h>
                     23: #include <stdlib.h>
                     24: #include <string.h>
                     25:
                     26: #include "libman.h"
                     27:
1.34      kristaps   28: enum   rew {
                     29:        REW_REWIND,
                     30:        REW_NOHALT,
1.40      kristaps   31:        REW_HALT
1.34      kristaps   32: };
1.19      kristaps   33:
1.35      kristaps   34: static int              blk_close(MACRO_PROT_ARGS);
                     35: static int              blk_dotted(MACRO_PROT_ARGS);
                     36: static int              blk_exp(MACRO_PROT_ARGS);
                     37: static int              blk_imp(MACRO_PROT_ARGS);
1.19      kristaps   38: static int              in_line_eoln(MACRO_PROT_ARGS);
                     39:
1.33      kristaps   40: static int              rew_scope(enum man_type,
                     41:                                struct man *, enum mant);
1.34      kristaps   42: static enum rew         rew_dohalt(enum mant, enum man_type,
1.19      kristaps   43:                                const struct man_node *);
1.34      kristaps   44: static enum rew         rew_block(enum mant, enum man_type,
1.21      kristaps   45:                                const struct man_node *);
1.38      kristaps   46: static int              rew_warn(struct man *,
                     47:                                struct man_node *, enum merr);
1.19      kristaps   48:
                     49: const  struct man_macro __man_macros[MAN_MAX] = {
1.31      kristaps   50:        { in_line_eoln, MAN_NSCOPED }, /* br */
1.19      kristaps   51:        { in_line_eoln, 0 }, /* TH */
1.24      kristaps   52:        { blk_imp, MAN_SCOPED }, /* SH */
                     53:        { blk_imp, MAN_SCOPED }, /* SS */
1.27      kristaps   54:        { blk_imp, MAN_SCOPED | MAN_FSCOPED }, /* TP */
1.19      kristaps   55:        { blk_imp, 0 }, /* LP */
                     56:        { blk_imp, 0 }, /* PP */
                     57:        { blk_imp, 0 }, /* P */
                     58:        { blk_imp, 0 }, /* IP */
                     59:        { blk_imp, 0 }, /* HP */
                     60:        { in_line_eoln, MAN_SCOPED }, /* SM */
                     61:        { in_line_eoln, MAN_SCOPED }, /* SB */
                     62:        { in_line_eoln, 0 }, /* BI */
                     63:        { in_line_eoln, 0 }, /* IB */
                     64:        { in_line_eoln, 0 }, /* BR */
                     65:        { in_line_eoln, 0 }, /* RB */
                     66:        { in_line_eoln, MAN_SCOPED }, /* R */
                     67:        { in_line_eoln, MAN_SCOPED }, /* B */
                     68:        { in_line_eoln, MAN_SCOPED }, /* I */
                     69:        { in_line_eoln, 0 }, /* IR */
                     70:        { in_line_eoln, 0 }, /* RI */
1.31      kristaps   71:        { in_line_eoln, MAN_NSCOPED }, /* na */
1.19      kristaps   72:        { in_line_eoln, 0 }, /* i */
1.31      kristaps   73:        { in_line_eoln, MAN_NSCOPED }, /* sp */
1.19      kristaps   74:        { in_line_eoln, 0 }, /* nf */
                     75:        { in_line_eoln, 0 }, /* fi */
                     76:        { in_line_eoln, 0 }, /* r */
1.21      kristaps   77:        { blk_close, 0 }, /* RE */
1.35      kristaps   78:        { blk_exp, MAN_EXPLICIT }, /* RS */
1.23      kristaps   79:        { in_line_eoln, 0 }, /* DT */
1.28      kristaps   80:        { in_line_eoln, 0 }, /* UC */
1.29      kristaps   81:        { in_line_eoln, 0 }, /* PD */
1.32      kristaps   82:        { in_line_eoln, MAN_NSCOPED }, /* Sp */
                     83:        { in_line_eoln, 0 }, /* Vb */
                     84:        { in_line_eoln, 0 }, /* Ve */
1.35      kristaps   85:        { blk_exp, MAN_EXPLICIT | MAN_NOCLOSE}, /* de */
                     86:        { blk_exp, MAN_EXPLICIT | MAN_NOCLOSE}, /* dei */
                     87:        { blk_exp, MAN_EXPLICIT | MAN_NOCLOSE}, /* am */
                     88:        { blk_exp, MAN_EXPLICIT | MAN_NOCLOSE}, /* ami */
                     89:        { blk_exp, MAN_EXPLICIT | MAN_NOCLOSE}, /* ig */
                     90:        { blk_dotted, 0 }, /* . */
1.19      kristaps   91: };
1.9       kristaps   92:
1.19      kristaps   93: const  struct man_macro * const man_macros = __man_macros;
1.1       kristaps   94:
                     95:
1.38      kristaps   96: /*
                     97:  * Warn when "n" is an explicit non-roff macro.
                     98:  */
                     99: static int
                    100: rew_warn(struct man *m, struct man_node *n, enum merr er)
                    101: {
                    102:
                    103:        if (er == WERRMAX || MAN_BLOCK != n->type)
                    104:                return(1);
                    105:        if (MAN_VALID & n->flags)
                    106:                return(1);
                    107:        if ( ! (MAN_EXPLICIT & man_macros[n->tok].flags))
                    108:                return(1);
                    109:        if (MAN_NOCLOSE & man_macros[n->tok].flags)
                    110:                return(1);
                    111:        return(man_nwarn(m, n, er));
                    112: }
                    113:
                    114:
                    115: /*
                    116:  * Rewind scope.  If a code "er" != WERRMAX has been provided, it will
                    117:  * be used if an explicit block scope is being closed out.
                    118:  */
1.3       kristaps  119: int
1.38      kristaps  120: man_unscope(struct man *m, const struct man_node *n, enum merr er)
1.1       kristaps  121: {
                    122:
1.19      kristaps  123:        assert(n);
                    124:
                    125:        /* LINTED */
                    126:        while (m->last != n) {
1.38      kristaps  127:                if ( ! rew_warn(m, m->last, er))
                    128:                        return(0);
1.19      kristaps  129:                if ( ! man_valid_post(m))
                    130:                        return(0);
                    131:                if ( ! man_action_post(m))
                    132:                        return(0);
                    133:                m->last = m->last->parent;
                    134:                assert(m->last);
                    135:        }
                    136:
1.38      kristaps  137:        if ( ! rew_warn(m, m->last, er))
                    138:                return(0);
1.19      kristaps  139:        if ( ! man_valid_post(m))
1.1       kristaps  140:                return(0);
1.35      kristaps  141:        if ( ! man_action_post(m))
                    142:                return(0);
                    143:
                    144:        m->next = MAN_ROOT == m->last->type ?
                    145:                MAN_NEXT_CHILD : MAN_NEXT_SIBLING;
                    146:
                    147:        return(1);
1.19      kristaps  148: }
1.1       kristaps  149:
                    150:
1.34      kristaps  151: static enum rew
1.33      kristaps  152: rew_block(enum mant ntok, enum man_type type, const struct man_node *n)
1.21      kristaps  153: {
                    154:
                    155:        if (MAN_BLOCK == type && ntok == n->parent->tok &&
                    156:                        MAN_BODY == n->parent->type)
                    157:                return(REW_REWIND);
                    158:        return(ntok == n->tok ? REW_HALT : REW_NOHALT);
                    159: }
                    160:
                    161:
1.19      kristaps  162: /*
                    163:  * There are three scope levels: scoped to the root (all), scoped to the
                    164:  * section (all less sections), and scoped to subsections (all less
                    165:  * sections and subsections).
                    166:  */
1.34      kristaps  167: static enum rew
1.33      kristaps  168: rew_dohalt(enum mant tok, enum man_type type, const struct man_node *n)
1.19      kristaps  169: {
1.34      kristaps  170:        enum rew         c;
1.1       kristaps  171:
1.38      kristaps  172:        /* We cannot progress beyond the root ever. */
1.19      kristaps  173:        if (MAN_ROOT == n->type)
                    174:                return(REW_HALT);
1.38      kristaps  175:
1.19      kristaps  176:        assert(n->parent);
1.38      kristaps  177:
                    178:        /* Normal nodes shouldn't go to the level of the root. */
1.19      kristaps  179:        if (MAN_ROOT == n->parent->type)
                    180:                return(REW_REWIND);
1.38      kristaps  181:
                    182:        /* Already-validated nodes should be closed out. */
1.19      kristaps  183:        if (MAN_VALID & n->flags)
                    184:                return(REW_NOHALT);
                    185:
1.38      kristaps  186:        /* First: rewind to ourselves. */
1.21      kristaps  187:        if (type == n->type && tok == n->tok)
                    188:                return(REW_REWIND);
                    189:
1.38      kristaps  190:        /*
                    191:         * If we're a roff macro, then we can close out anything that
                    192:         * stands between us and our parent context.
                    193:         */
                    194:        if (MAN_NOCLOSE & man_macros[tok].flags)
                    195:                return(REW_NOHALT);
                    196:
                    197:        /*
                    198:         * Don't clobber roff macros: this is a bit complicated.  If the
                    199:         * current macro is a roff macro, halt immediately and don't
                    200:         * rewind.  If it's not, and the parent is, then close out the
                    201:         * current scope and halt at the parent.
                    202:         */
                    203:        if (MAN_NOCLOSE & man_macros[n->tok].flags)
                    204:                return(REW_HALT);
                    205:        if (MAN_NOCLOSE & man_macros[n->parent->tok].flags)
                    206:                return(REW_REWIND);
                    207:
                    208:        /*
                    209:         * Next follow the implicit scope-smashings as defined by man.7:
                    210:         * section, sub-section, etc.
                    211:         */
                    212:
1.19      kristaps  213:        switch (tok) {
                    214:        case (MAN_SH):
                    215:                break;
                    216:        case (MAN_SS):
1.20      kristaps  217:                /* Rewind to a section, if a block. */
1.21      kristaps  218:                if (REW_NOHALT != (c = rew_block(MAN_SH, type, n)))
                    219:                        return(c);
                    220:                break;
                    221:        case (MAN_RS):
                    222:                /* Rewind to a subsection, if a block. */
                    223:                if (REW_NOHALT != (c = rew_block(MAN_SS, type, n)))
                    224:                        return(c);
                    225:                /* Rewind to a section, if a block. */
                    226:                if (REW_NOHALT != (c = rew_block(MAN_SH, type, n)))
                    227:                        return(c);
1.19      kristaps  228:                break;
                    229:        default:
1.21      kristaps  230:                /* Rewind to an offsetter, if a block. */
                    231:                if (REW_NOHALT != (c = rew_block(MAN_RS, type, n)))
                    232:                        return(c);
1.20      kristaps  233:                /* Rewind to a subsection, if a block. */
1.21      kristaps  234:                if (REW_NOHALT != (c = rew_block(MAN_SS, type, n)))
                    235:                        return(c);
1.20      kristaps  236:                /* Rewind to a section, if a block. */
1.21      kristaps  237:                if (REW_NOHALT != (c = rew_block(MAN_SH, type, n)))
                    238:                        return(c);
1.19      kristaps  239:                break;
1.3       kristaps  240:        }
1.1       kristaps  241:
1.19      kristaps  242:        return(REW_NOHALT);
                    243: }
1.9       kristaps  244:
                    245:
1.19      kristaps  246: /*
                    247:  * Rewinding entails ascending the parse tree until a coherent point,
                    248:  * for example, the `SH' macro will close out any intervening `SS'
                    249:  * scopes.  When a scope is closed, it must be validated and actioned.
                    250:  */
                    251: static int
1.33      kristaps  252: rew_scope(enum man_type type, struct man *m, enum mant tok)
1.19      kristaps  253: {
                    254:        struct man_node *n;
1.34      kristaps  255:        enum rew         c;
1.7       kristaps  256:
1.19      kristaps  257:        /* LINTED */
                    258:        for (n = m->last; n; n = n->parent) {
                    259:                /*
                    260:                 * Whether we should stop immediately (REW_HALT), stop
                    261:                 * and rewind until this point (REW_REWIND), or keep
                    262:                 * rewinding (REW_NOHALT).
                    263:                 */
                    264:                c = rew_dohalt(tok, type, n);
                    265:                if (REW_HALT == c)
                    266:                        return(1);
                    267:                if (REW_REWIND == c)
1.7       kristaps  268:                        break;
1.6       kristaps  269:        }
1.1       kristaps  270:
1.38      kristaps  271:        /*
                    272:         * Rewind until the current point.  Warn if we're a roff
                    273:         * instruction that's mowing over explicit scopes.
                    274:         */
                    275:        assert(n);
                    276:        if (MAN_NOCLOSE & man_macros[tok].flags)
                    277:                return(man_unscope(m, n, WROFFSCOPE));
1.19      kristaps  278:
1.38      kristaps  279:        return(man_unscope(m, n, WERRMAX));
1.19      kristaps  280: }
                    281:
1.6       kristaps  282:
1.36      kristaps  283: /*
                    284:  * Closure for dotted macros (de, dei, am, ami, ign).  This must handle
                    285:  * any of these as the parent node, so it needs special handling.
                    286:  * Beyond this, it's the same as blk_close().
                    287:  */
1.37      kristaps  288: /* ARGSUSED */
1.21      kristaps  289: int
1.35      kristaps  290: blk_dotted(MACRO_PROT_ARGS)
                    291: {
                    292:        enum mant        ntok;
                    293:        struct man_node *nn;
                    294:
1.38      kristaps  295:        /* Check for any of the following parents... */
                    296:
1.35      kristaps  297:        for (nn = m->last->parent; nn; nn = nn->parent)
                    298:                if (nn->tok == MAN_de || nn->tok == MAN_dei ||
                    299:                                nn->tok == MAN_am ||
                    300:                                nn->tok == MAN_ami ||
                    301:                                nn->tok == MAN_ig) {
                    302:                        ntok = nn->tok;
                    303:                        break;
                    304:                }
                    305:
                    306:        if (NULL == nn) {
                    307:                if ( ! man_pwarn(m, line, ppos, WNOSCOPE))
                    308:                        return(0);
                    309:                return(1);
                    310:        }
                    311:
                    312:        if ( ! rew_scope(MAN_BODY, m, ntok))
                    313:                return(0);
                    314:        if ( ! rew_scope(MAN_BLOCK, m, ntok))
                    315:                return(0);
                    316:
1.38      kristaps  317:        /*
                    318:         * XXX: manually adjust our next-line status.  roff macros are,
                    319:         * for the moment, ignored, so we don't want to close out bodies
                    320:         * and so on.
                    321:         */
                    322:
                    323:        switch (m->last->type) {
                    324:        case (MAN_BODY):
                    325:                m->next = MAN_NEXT_CHILD;
                    326:                break;
                    327:        default:
                    328:                break;
                    329:        }
                    330:
1.41    ! kristaps  331:        /*
        !           332:         * Restore flags set when we got here and also stipulate that we
        !           333:         * don't post-process the line when exiting the macro op
        !           334:         * function in man_pmacro().
        !           335:         */
        !           336:        m->flags = m->svflags;
        !           337:        m->flags |= MAN_ILINE;
        !           338:
1.35      kristaps  339:        return(1);
                    340: }
                    341:
                    342:
1.36      kristaps  343: /*
                    344:  * Close out a generic explicit macro.
                    345:  */
1.37      kristaps  346: /* ARGSUSED */
1.35      kristaps  347: int
1.21      kristaps  348: blk_close(MACRO_PROT_ARGS)
                    349: {
1.33      kristaps  350:        enum mant                ntok;
1.21      kristaps  351:        const struct man_node   *nn;
                    352:
                    353:        switch (tok) {
                    354:        case (MAN_RE):
                    355:                ntok = MAN_RS;
                    356:                break;
                    357:        default:
                    358:                abort();
                    359:                /* NOTREACHED */
                    360:        }
                    361:
                    362:        for (nn = m->last->parent; nn; nn = nn->parent)
                    363:                if (ntok == nn->tok)
                    364:                        break;
                    365:
                    366:        if (NULL == nn)
                    367:                if ( ! man_pwarn(m, line, ppos, WNOSCOPE))
                    368:                        return(0);
                    369:
                    370:        if ( ! rew_scope(MAN_BODY, m, ntok))
                    371:                return(0);
                    372:        if ( ! rew_scope(MAN_BLOCK, m, ntok))
                    373:                return(0);
1.35      kristaps  374:
1.21      kristaps  375:        return(1);
                    376: }
                    377:
                    378:
1.35      kristaps  379: int
                    380: blk_exp(MACRO_PROT_ARGS)
                    381: {
                    382:        int              w, la;
                    383:        char            *p;
                    384:
                    385:        /*
                    386:         * Close out prior scopes.  "Regular" explicit macros cannot be
                    387:         * nested, but we allow roff macros to be placed just about
                    388:         * anywhere.
                    389:         */
                    390:
                    391:        if ( ! (MAN_NOCLOSE & man_macros[tok].flags)) {
                    392:                if ( ! rew_scope(MAN_BODY, m, tok))
                    393:                        return(0);
                    394:                if ( ! rew_scope(MAN_BLOCK, m, tok))
                    395:                        return(0);
1.41    ! kristaps  396:        } else {
        !           397:                /*
        !           398:                 * Save our state; we restore it when exiting from the
        !           399:                 * roff instruction block.
        !           400:                 */
        !           401:                m->svflags = m->flags;
        !           402:                m->flags = 0;
1.35      kristaps  403:        }
                    404:
                    405:        if ( ! man_block_alloc(m, line, ppos, tok))
                    406:                return(0);
                    407:        if ( ! man_head_alloc(m, line, ppos, tok))
                    408:                return(0);
                    409:
                    410:        for (;;) {
                    411:                la = *pos;
                    412:                w = man_args(m, line, pos, buf, &p);
                    413:
                    414:                if (-1 == w)
                    415:                        return(0);
                    416:                if (0 == w)
                    417:                        break;
                    418:
                    419:                if ( ! man_word_alloc(m, line, la, p))
                    420:                        return(0);
                    421:        }
                    422:
                    423:        assert(m);
                    424:        assert(tok != MAN_MAX);
                    425:
                    426:        if ( ! rew_scope(MAN_HEAD, m, tok))
                    427:                return(0);
                    428:        return(man_body_alloc(m, line, ppos, tok));
                    429: }
                    430:
                    431:
                    432:
1.19      kristaps  433: /*
                    434:  * Parse an implicit-block macro.  These contain a MAN_HEAD and a
                    435:  * MAN_BODY contained within a MAN_BLOCK.  Rules for closing out other
                    436:  * scopes, such as `SH' closing out an `SS', are defined in the rew
                    437:  * routines.
                    438:  */
                    439: int
                    440: blk_imp(MACRO_PROT_ARGS)
                    441: {
                    442:        int              w, la;
                    443:        char            *p;
1.25      kristaps  444:        struct man_node *n;
1.19      kristaps  445:
                    446:        /* Close out prior scopes. */
1.7       kristaps  447:
1.19      kristaps  448:        if ( ! rew_scope(MAN_BODY, m, tok))
1.5       kristaps  449:                return(0);
1.19      kristaps  450:        if ( ! rew_scope(MAN_BLOCK, m, tok))
1.6       kristaps  451:                return(0);
1.1       kristaps  452:
1.19      kristaps  453:        /* Allocate new block & head scope. */
                    454:
                    455:        if ( ! man_block_alloc(m, line, ppos, tok))
                    456:                return(0);
                    457:        if ( ! man_head_alloc(m, line, ppos, tok))
                    458:                return(0);
1.1       kristaps  459:
1.25      kristaps  460:        n = m->last;
                    461:
1.19      kristaps  462:        /* Add line arguments. */
1.3       kristaps  463:
1.19      kristaps  464:        for (;;) {
                    465:                la = *pos;
                    466:                w = man_args(m, line, pos, buf, &p);
1.4       kristaps  467:
1.19      kristaps  468:                if (-1 == w)
1.6       kristaps  469:                        return(0);
1.19      kristaps  470:                if (0 == w)
                    471:                        break;
                    472:
                    473:                if ( ! man_word_alloc(m, line, la, p))
1.6       kristaps  474:                        return(0);
                    475:        }
                    476:
1.19      kristaps  477:        /* Close out head and open body (unless MAN_SCOPE). */
                    478:
1.27      kristaps  479:        if (MAN_SCOPED & man_macros[tok].flags) {
                    480:                /* If we're forcing scope (`TP'), keep it open. */
                    481:                if (MAN_FSCOPED & man_macros[tok].flags) {
                    482:                        m->flags |= MAN_BLINE;
                    483:                        return(1);
                    484:                } else if (n == m->last) {
                    485:                        m->flags |= MAN_BLINE;
                    486:                        return(1);
                    487:                }
                    488:        }
                    489:
                    490:        if ( ! rew_scope(MAN_HEAD, m, tok))
1.6       kristaps  491:                return(0);
1.19      kristaps  492:        return(man_body_alloc(m, line, ppos, tok));
1.4       kristaps  493: }
                    494:
                    495:
1.19      kristaps  496: int
                    497: in_line_eoln(MACRO_PROT_ARGS)
1.3       kristaps  498: {
1.19      kristaps  499:        int              w, la;
                    500:        char            *p;
                    501:        struct man_node *n;
1.3       kristaps  502:
1.19      kristaps  503:        if ( ! man_elem_alloc(m, line, ppos, tok))
1.3       kristaps  504:                return(0);
                    505:
1.19      kristaps  506:        n = m->last;
1.3       kristaps  507:
1.19      kristaps  508:        for (;;) {
                    509:                la = *pos;
                    510:                w = man_args(m, line, pos, buf, &p);
1.3       kristaps  511:
1.19      kristaps  512:                if (-1 == w)
                    513:                        return(0);
                    514:                if (0 == w)
                    515:                        break;
                    516:                if ( ! man_word_alloc(m, line, la, p))
                    517:                        return(0);
                    518:        }
1.3       kristaps  519:
1.31      kristaps  520:        /*
                    521:         * If no arguments are specified and this is MAN_SCOPED (i.e.,
                    522:         * next-line scoped), then set our mode to indicate that we're
                    523:         * waiting for terms to load into our context.
                    524:         */
                    525:
1.25      kristaps  526:        if (n == m->last && MAN_SCOPED & man_macros[tok].flags) {
1.31      kristaps  527:                assert( ! (MAN_NSCOPED & man_macros[tok].flags));
1.19      kristaps  528:                m->flags |= MAN_ELINE;
                    529:                return(1);
                    530:        }
1.3       kristaps  531:
1.31      kristaps  532:        /* Set ignorable context, if applicable. */
                    533:
                    534:        if (MAN_NSCOPED & man_macros[tok].flags) {
                    535:                assert( ! (MAN_SCOPED & man_macros[tok].flags));
                    536:                m->flags |= MAN_ILINE;
                    537:        }
                    538:
1.19      kristaps  539:        /*
1.31      kristaps  540:         * Rewind our element scope.  Note that when TH is pruned, we'll
                    541:         * be back at the root, so make sure that we don't clobber as
                    542:         * its sibling.
1.19      kristaps  543:         */
1.3       kristaps  544:
1.19      kristaps  545:        for ( ; m->last; m->last = m->last->parent) {
                    546:                if (m->last == n)
                    547:                        break;
                    548:                if (m->last->type == MAN_ROOT)
                    549:                        break;
                    550:                if ( ! man_valid_post(m))
                    551:                        return(0);
                    552:                if ( ! man_action_post(m))
                    553:                        return(0);
                    554:        }
1.3       kristaps  555:
1.19      kristaps  556:        assert(m->last);
1.3       kristaps  557:
                    558:        /*
1.19      kristaps  559:         * Same here regarding whether we're back at the root.
1.3       kristaps  560:         */
                    561:
1.19      kristaps  562:        if (m->last->type != MAN_ROOT && ! man_valid_post(m))
                    563:                return(0);
                    564:        if (m->last->type != MAN_ROOT && ! man_action_post(m))
                    565:                return(0);
1.35      kristaps  566:
                    567:        m->next = MAN_ROOT == m->last->type ?
                    568:                MAN_NEXT_CHILD : MAN_NEXT_SIBLING;
1.3       kristaps  569:
1.19      kristaps  570:        return(1);
                    571: }
1.3       kristaps  572:
                    573:
1.19      kristaps  574: int
                    575: man_macroend(struct man *m)
                    576: {
1.22      kristaps  577:
1.38      kristaps  578:        return(man_unscope(m, m->first, WEXITSCOPE));
1.19      kristaps  579: }
1.3       kristaps  580:

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