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Annotation of mandoc/man_validate.c, Revision 1.82

1.82    ! schwarze    1: /*     $Id: man_validate.c,v 1.81 2012/06/02 20:16:23 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);
1.70      kristaps   58: static int       post_vs(CHKARGS);
1.51      kristaps   59: static int       post_fi(CHKARGS);
1.73      kristaps   60: static int       post_ft(CHKARGS);
1.51      kristaps   61: static int       post_nf(CHKARGS);
1.73      kristaps   62: static int       post_sec(CHKARGS);
1.51      kristaps   63: static int       post_TH(CHKARGS);
                     64: static int       post_UC(CHKARGS);
1.73      kristaps   65: static int       pre_sec(CHKARGS);
1.51      kristaps   66:
                     67: static v_check   posts_at[] = { post_AT, NULL };
1.70      kristaps   68: static v_check   posts_br[] = { post_vs, check_eq0, NULL };
1.17      kristaps   69: static v_check   posts_eq0[] = { check_eq0, NULL };
1.80      kristaps   70: static v_check   posts_eq2[] = { check_eq2, NULL };
1.51      kristaps   71: static v_check   posts_fi[] = { check_eq0, post_fi, NULL };
1.73      kristaps   72: static v_check   posts_ft[] = { post_ft, NULL };
1.51      kristaps   73: static v_check   posts_nf[] = { check_eq0, post_nf, NULL };
1.17      kristaps   74: static v_check   posts_par[] = { check_par, NULL };
1.23      kristaps   75: static v_check   posts_part[] = { check_part, NULL };
1.73      kristaps   76: static v_check   posts_sec[] = { post_sec, NULL };
1.70      kristaps   77: static v_check   posts_sp[] = { post_vs, check_le1, NULL };
1.60      schwarze   78: static v_check   posts_th[] = { check_ge2, check_le5, post_TH, NULL };
1.51      kristaps   79: static v_check   posts_uc[] = { post_UC, NULL };
1.78      schwarze   80: static v_check   pres_sec[] = { pre_sec, NULL };
1.1       kristaps   81:
                     82: static const struct man_valid man_valids[MAN_MAX] = {
1.70      kristaps   83:        { NULL, posts_br }, /* br */
1.78      schwarze   84:        { NULL, posts_th }, /* TH */
1.73      kristaps   85:        { pres_sec, posts_sec }, /* SH */
                     86:        { pres_sec, posts_sec }, /* SS */
1.78      schwarze   87:        { NULL, NULL }, /* TP */
                     88:        { NULL, posts_par }, /* LP */
                     89:        { NULL, posts_par }, /* PP */
                     90:        { NULL, posts_par }, /* P */
                     91:        { NULL, NULL }, /* IP */
                     92:        { NULL, NULL }, /* HP */
1.22      kristaps   93:        { NULL, NULL }, /* SM */
                     94:        { NULL, NULL }, /* SB */
1.17      kristaps   95:        { NULL, NULL }, /* BI */
                     96:        { NULL, NULL }, /* IB */
                     97:        { NULL, NULL }, /* BR */
                     98:        { NULL, NULL }, /* RB */
1.22      kristaps   99:        { NULL, NULL }, /* R */
                    100:        { NULL, NULL }, /* B */
                    101:        { NULL, NULL }, /* I */
1.17      kristaps  102:        { NULL, NULL }, /* IR */
                    103:        { NULL, NULL }, /* RI */
1.80      kristaps  104:        { NULL, posts_eq0 }, /* na */
                    105:        { NULL, posts_sp }, /* sp */
1.78      schwarze  106:        { NULL, posts_nf }, /* nf */
                    107:        { NULL, posts_fi }, /* fi */
1.19      kristaps  108:        { NULL, NULL }, /* RE */
1.23      kristaps  109:        { NULL, posts_part }, /* RS */
1.21      kristaps  110:        { NULL, NULL }, /* DT */
1.51      kristaps  111:        { NULL, posts_uc }, /* UC */
1.26      kristaps  112:        { NULL, NULL }, /* PD */
1.51      kristaps  113:        { NULL, posts_at }, /* AT */
1.47      kristaps  114:        { NULL, NULL }, /* in */
1.55      kristaps  115:        { NULL, posts_ft }, /* ft */
1.80      kristaps  116:        { NULL, posts_eq2 }, /* OP */
1.81      schwarze  117:        { NULL, posts_nf }, /* EX */
                    118:        { NULL, posts_fi }, /* EE */
1.1       kristaps  119: };
                    120:
                    121:
                    122: int
1.43      kristaps  123: man_valid_pre(struct man *m, struct man_node *n)
1.17      kristaps  124: {
                    125:        v_check         *cp;
                    126:
1.57      kristaps  127:        switch (n->type) {
                    128:        case (MAN_TEXT):
                    129:                /* FALLTHROUGH */
                    130:        case (MAN_ROOT):
1.61      kristaps  131:                /* FALLTHROUGH */
                    132:        case (MAN_EQN):
1.57      kristaps  133:                /* FALLTHROUGH */
                    134:        case (MAN_TBL):
1.17      kristaps  135:                return(1);
1.57      kristaps  136:        default:
                    137:                break;
                    138:        }
1.17      kristaps  139:
                    140:        if (NULL == (cp = man_valids[n->tok].pres))
                    141:                return(1);
                    142:        for ( ; *cp; cp++)
                    143:                if ( ! (*cp)(m, n))
                    144:                        return(0);
                    145:        return(1);
                    146: }
                    147:
                    148:
                    149: int
1.1       kristaps  150: man_valid_post(struct man *m)
                    151: {
1.17      kristaps  152:        v_check         *cp;
1.1       kristaps  153:
                    154:        if (MAN_VALID & m->last->flags)
                    155:                return(1);
                    156:        m->last->flags |= MAN_VALID;
                    157:
                    158:        switch (m->last->type) {
1.75      kristaps  159:        case (MAN_TEXT):
                    160:                check_text(m, m->last);
                    161:                return(1);
1.1       kristaps  162:        case (MAN_ROOT):
1.14      kristaps  163:                return(check_root(m, m->last));
1.62      kristaps  164:        case (MAN_EQN):
                    165:                /* FALLTHROUGH */
1.57      kristaps  166:        case (MAN_TBL):
                    167:                return(1);
1.1       kristaps  168:        default:
                    169:                break;
                    170:        }
                    171:
                    172:        if (NULL == (cp = man_valids[m->last->tok].posts))
                    173:                return(1);
                    174:        for ( ; *cp; cp++)
                    175:                if ( ! (*cp)(m, m->last))
                    176:                        return(0);
                    177:
                    178:        return(1);
                    179: }
                    180:
                    181:
1.11      kristaps  182: static int
1.17      kristaps  183: check_root(CHKARGS)
1.14      kristaps  184: {
1.17      kristaps  185:
                    186:        if (MAN_BLINE & m->flags)
1.54      kristaps  187:                man_nmsg(m, n, MANDOCERR_SCOPEEXIT);
                    188:        else if (MAN_ELINE & m->flags)
                    189:                man_nmsg(m, n, MANDOCERR_SCOPEEXIT);
1.22      kristaps  190:
                    191:        m->flags &= ~MAN_BLINE;
                    192:        m->flags &= ~MAN_ELINE;
1.17      kristaps  193:
1.41      kristaps  194:        if (NULL == m->first->child) {
                    195:                man_nmsg(m, n, MANDOCERR_NODOCBODY);
                    196:                return(0);
                    197:        } else if (NULL == m->meta.title) {
1.54      kristaps  198:                man_nmsg(m, n, MANDOCERR_NOTITLE);
                    199:
1.34      kristaps  200:                /*
                    201:                 * If a title hasn't been set, do so now (by
                    202:                 * implication, date and section also aren't set).
                    203:                 */
1.54      kristaps  204:
1.34      kristaps  205:                m->meta.title = mandoc_strdup("unknown");
1.37      kristaps  206:                m->meta.msec = mandoc_strdup("1");
1.65      kristaps  207:                m->meta.date = mandoc_normdate
                    208:                        (m->parse, NULL, n->line, n->pos);
1.34      kristaps  209:        }
1.32      kristaps  210:
                    211:        return(1);
1.75      kristaps  212: }
                    213:
                    214: static void
                    215: check_text(CHKARGS)
                    216: {
                    217:        char            *cp, *p;
                    218:
1.76      schwarze  219:        if (MAN_LITERAL & m->flags)
                    220:                return;
                    221:
                    222:        cp = n->string;
                    223:        for (p = cp; NULL != (p = strchr(p, '\t')); p++)
1.75      kristaps  224:                man_pmsg(m, n->line, (int)(p - cp), MANDOCERR_BADTAB);
1.1       kristaps  225: }
                    226:
                    227: #define        INEQ_DEFINE(x, ineq, name) \
                    228: static int \
1.17      kristaps  229: check_##name(CHKARGS) \
1.1       kristaps  230: { \
1.11      kristaps  231:        if (n->nchild ineq (x)) \
1.1       kristaps  232:                return(1); \
1.65      kristaps  233:        mandoc_vmsg(MANDOCERR_ARGCOUNT, m->parse, n->line, n->pos, \
1.41      kristaps  234:                        "line arguments %s %d (have %d)", \
                    235:                        #ineq, (x), n->nchild); \
1.60      schwarze  236:        return(1); \
1.1       kristaps  237: }
                    238:
                    239: INEQ_DEFINE(0, ==, eq0)
1.80      kristaps  240: INEQ_DEFINE(2, ==, eq2)
1.25      kristaps  241: INEQ_DEFINE(1, <=, le1)
1.1       kristaps  242: INEQ_DEFINE(2, >=, ge2)
                    243: INEQ_DEFINE(5, <=, le5)
                    244:
1.55      kristaps  245: static int
1.73      kristaps  246: post_ft(CHKARGS)
1.55      kristaps  247: {
                    248:        char    *cp;
                    249:        int      ok;
                    250:
                    251:        if (0 == n->nchild)
                    252:                return(1);
                    253:
                    254:        ok = 0;
                    255:        cp = n->child->string;
                    256:        switch (*cp) {
                    257:        case ('1'):
                    258:                /* FALLTHROUGH */
                    259:        case ('2'):
                    260:                /* FALLTHROUGH */
                    261:        case ('3'):
                    262:                /* FALLTHROUGH */
                    263:        case ('4'):
                    264:                /* FALLTHROUGH */
                    265:        case ('I'):
                    266:                /* FALLTHROUGH */
                    267:        case ('P'):
                    268:                /* FALLTHROUGH */
                    269:        case ('R'):
                    270:                if ('\0' == cp[1])
                    271:                        ok = 1;
                    272:                break;
                    273:        case ('B'):
                    274:                if ('\0' == cp[1] || ('I' == cp[1] && '\0' == cp[2]))
                    275:                        ok = 1;
                    276:                break;
                    277:        case ('C'):
                    278:                if ('W' == cp[1] && '\0' == cp[2])
                    279:                        ok = 1;
                    280:                break;
                    281:        default:
                    282:                break;
                    283:        }
                    284:
                    285:        if (0 == ok) {
1.65      kristaps  286:                mandoc_vmsg
                    287:                        (MANDOCERR_BADFONT, m->parse,
                    288:                         n->line, n->pos, "%s", cp);
1.55      kristaps  289:                *cp = '\0';
                    290:        }
                    291:
                    292:        if (1 < n->nchild)
1.65      kristaps  293:                mandoc_vmsg
                    294:                        (MANDOCERR_ARGCOUNT, m->parse, n->line,
                    295:                         n->pos, "want one child (have %d)",
                    296:                         n->nchild);
1.55      kristaps  297:
                    298:        return(1);
                    299: }
1.16      kristaps  300:
                    301: static int
1.73      kristaps  302: pre_sec(CHKARGS)
                    303: {
                    304:
                    305:        if (MAN_BLOCK == n->type)
                    306:                m->flags &= ~MAN_LITERAL;
                    307:        return(1);
                    308: }
                    309:
                    310: static int
                    311: post_sec(CHKARGS)
1.17      kristaps  312: {
1.16      kristaps  313:
1.69      kristaps  314:        if ( ! (MAN_HEAD == n->type && 0 == n->nchild))
                    315:                return(1);
1.41      kristaps  316:
1.69      kristaps  317:        man_nmsg(m, n, MANDOCERR_SYNTARGCOUNT);
                    318:        return(0);
1.16      kristaps  319: }
1.17      kristaps  320:
                    321: static int
1.23      kristaps  322: check_part(CHKARGS)
                    323: {
                    324:
                    325:        if (MAN_BODY == n->type && 0 == n->nchild)
1.67      kristaps  326:                mandoc_msg(MANDOCERR_ARGCWARN, m->parse, n->line,
                    327:                                n->pos, "want children (have none)");
1.54      kristaps  328:
1.23      kristaps  329:        return(1);
                    330: }
                    331:
                    332:
                    333: static int
1.17      kristaps  334: check_par(CHKARGS)
                    335: {
                    336:
1.59      kristaps  337:        switch (n->type) {
                    338:        case (MAN_BLOCK):
                    339:                if (0 == n->body->nchild)
                    340:                        man_node_delete(m, n);
                    341:                break;
                    342:        case (MAN_BODY):
                    343:                if (0 == n->nchild)
                    344:                        man_nmsg(m, n, MANDOCERR_IGNPAR);
                    345:                break;
                    346:        case (MAN_HEAD):
                    347:                if (n->nchild)
                    348:                        man_nmsg(m, n, MANDOCERR_ARGSLOST);
                    349:                break;
                    350:        default:
                    351:                break;
                    352:        }
1.17      kristaps  353:
                    354:        return(1);
                    355: }
                    356:
                    357:
1.51      kristaps  358: static int
                    359: post_TH(CHKARGS)
                    360: {
1.60      schwarze  361:        const char      *p;
1.63      schwarze  362:        int              line, pos;
1.51      kristaps  363:
                    364:        if (m->meta.title)
                    365:                free(m->meta.title);
                    366:        if (m->meta.vol)
                    367:                free(m->meta.vol);
                    368:        if (m->meta.source)
                    369:                free(m->meta.source);
                    370:        if (m->meta.msec)
                    371:                free(m->meta.msec);
1.63      schwarze  372:        if (m->meta.date)
                    373:                free(m->meta.date);
1.51      kristaps  374:
1.63      schwarze  375:        line = n->line;
                    376:        pos = n->pos;
                    377:        m->meta.title = m->meta.vol = m->meta.date =
1.51      kristaps  378:                m->meta.msec = m->meta.source = NULL;
                    379:
                    380:        /* ->TITLE<- MSEC DATE SOURCE VOL */
                    381:
                    382:        n = n->child;
1.60      schwarze  383:        if (n && n->string) {
                    384:                for (p = n->string; '\0' != *p; p++) {
                    385:                        /* Only warn about this once... */
1.71      kristaps  386:                        if (isalpha((unsigned char)*p) &&
                    387:                                        ! isupper((unsigned char)*p)) {
1.60      schwarze  388:                                man_nmsg(m, n, MANDOCERR_UPPERCASE);
                    389:                                break;
                    390:                        }
                    391:                }
                    392:                m->meta.title = mandoc_strdup(n->string);
                    393:        } else
                    394:                m->meta.title = mandoc_strdup("");
1.51      kristaps  395:
                    396:        /* TITLE ->MSEC<- DATE SOURCE VOL */
                    397:
1.60      schwarze  398:        if (n)
                    399:                n = n->next;
                    400:        if (n && n->string)
                    401:                m->meta.msec = mandoc_strdup(n->string);
                    402:        else
                    403:                m->meta.msec = mandoc_strdup("");
1.51      kristaps  404:
                    405:        /* TITLE MSEC ->DATE<- SOURCE VOL */
                    406:
1.60      schwarze  407:        if (n)
                    408:                n = n->next;
1.77      schwarze  409:        if (n && n->string && '\0' != n->string[0]) {
1.63      schwarze  410:                pos = n->pos;
1.77      schwarze  411:                m->meta.date = mandoc_normdate
                    412:                    (m->parse, n->string, line, pos);
                    413:        } else
                    414:                m->meta.date = mandoc_strdup("");
1.51      kristaps  415:
                    416:        /* TITLE MSEC DATE ->SOURCE<- VOL */
                    417:
                    418:        if (n && (n = n->next))
                    419:                m->meta.source = mandoc_strdup(n->string);
                    420:
                    421:        /* TITLE MSEC DATE SOURCE ->VOL<- */
1.79      schwarze  422:        /* If missing, use the default VOL name for MSEC. */
1.51      kristaps  423:
                    424:        if (n && (n = n->next))
                    425:                m->meta.vol = mandoc_strdup(n->string);
1.79      schwarze  426:        else if ('\0' != m->meta.msec[0] &&
                    427:            (NULL != (p = mandoc_a2msec(m->meta.msec))))
                    428:                m->meta.vol = mandoc_strdup(p);
1.51      kristaps  429:
                    430:        /*
                    431:         * Remove the `TH' node after we've processed it for our
                    432:         * meta-data.
                    433:         */
                    434:        man_node_delete(m, m->last);
                    435:        return(1);
                    436: }
                    437:
                    438: static int
                    439: post_nf(CHKARGS)
                    440: {
                    441:
                    442:        if (MAN_LITERAL & m->flags)
                    443:                man_nmsg(m, n, MANDOCERR_SCOPEREP);
                    444:
                    445:        m->flags |= MAN_LITERAL;
                    446:        return(1);
                    447: }
                    448:
                    449: static int
                    450: post_fi(CHKARGS)
                    451: {
                    452:
                    453:        if ( ! (MAN_LITERAL & m->flags))
1.58      kristaps  454:                man_nmsg(m, n, MANDOCERR_WNOSCOPE);
1.51      kristaps  455:
                    456:        m->flags &= ~MAN_LITERAL;
                    457:        return(1);
                    458: }
                    459:
                    460: static int
                    461: post_UC(CHKARGS)
                    462: {
                    463:        static const char * const bsd_versions[] = {
                    464:            "3rd Berkeley Distribution",
                    465:            "4th Berkeley Distribution",
                    466:            "4.2 Berkeley Distribution",
                    467:            "4.3 Berkeley Distribution",
                    468:            "4.4 Berkeley Distribution",
                    469:        };
                    470:
                    471:        const char      *p, *s;
                    472:
                    473:        n = n->child;
                    474:
                    475:        if (NULL == n || MAN_TEXT != n->type)
                    476:                p = bsd_versions[0];
                    477:        else {
                    478:                s = n->string;
                    479:                if (0 == strcmp(s, "3"))
                    480:                        p = bsd_versions[0];
                    481:                else if (0 == strcmp(s, "4"))
                    482:                        p = bsd_versions[1];
                    483:                else if (0 == strcmp(s, "5"))
                    484:                        p = bsd_versions[2];
                    485:                else if (0 == strcmp(s, "6"))
                    486:                        p = bsd_versions[3];
                    487:                else if (0 == strcmp(s, "7"))
                    488:                        p = bsd_versions[4];
                    489:                else
                    490:                        p = bsd_versions[0];
                    491:        }
                    492:
                    493:        if (m->meta.source)
                    494:                free(m->meta.source);
                    495:
                    496:        m->meta.source = mandoc_strdup(p);
                    497:        return(1);
                    498: }
                    499:
                    500: static int
                    501: post_AT(CHKARGS)
                    502: {
                    503:        static const char * const unix_versions[] = {
                    504:            "7th Edition",
                    505:            "System III",
                    506:            "System V",
                    507:            "System V Release 2",
                    508:        };
                    509:
                    510:        const char      *p, *s;
                    511:        struct man_node *nn;
                    512:
                    513:        n = n->child;
                    514:
                    515:        if (NULL == n || MAN_TEXT != n->type)
                    516:                p = unix_versions[0];
                    517:        else {
                    518:                s = n->string;
                    519:                if (0 == strcmp(s, "3"))
                    520:                        p = unix_versions[0];
                    521:                else if (0 == strcmp(s, "4"))
                    522:                        p = unix_versions[1];
                    523:                else if (0 == strcmp(s, "5")) {
                    524:                        nn = n->next;
                    525:                        if (nn && MAN_TEXT == nn->type && nn->string[0])
                    526:                                p = unix_versions[3];
                    527:                        else
                    528:                                p = unix_versions[2];
                    529:                } else
                    530:                        p = unix_versions[0];
                    531:        }
                    532:
                    533:        if (m->meta.source)
                    534:                free(m->meta.source);
                    535:
                    536:        m->meta.source = mandoc_strdup(p);
1.70      kristaps  537:        return(1);
                    538: }
                    539:
                    540: static int
                    541: post_vs(CHKARGS)
                    542: {
                    543:
1.82    ! schwarze  544:        if (NULL != n->prev)
        !           545:                return(1);
        !           546:
        !           547:        switch (n->parent->tok) {
        !           548:        case (MAN_SH):
        !           549:                /* FALLTHROUGH */
        !           550:        case (MAN_SS):
        !           551:                man_nmsg(m, n, MANDOCERR_IGNPAR);
        !           552:                /* FALLTHROUGH */
        !           553:        case (MAN_MAX):
        !           554:                /*
        !           555:                 * Don't warn about this because it occurs in pod2man
        !           556:                 * and would cause considerable (unfixable) warnage.
        !           557:                 */
1.70      kristaps  558:                man_node_delete(m, n);
1.82    ! schwarze  559:                break;
        !           560:        default:
        !           561:                break;
        !           562:        }
1.70      kristaps  563:
1.51      kristaps  564:        return(1);
                    565: }

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