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Annotation of mandoc/mdoc_man.c, Revision 1.6

1.6     ! kristaps    1: /*     $Id: mdoc_man.c,v 1.5 2011/10/08 09:58:29 kristaps Exp $ */
1.1       schwarze    2: /*
                      3:  * Copyright (c) 2011 Ingo Schwarze <schwarze@openbsd.org>
                      4:  *
                      5:  * Permission to use, copy, modify, and distribute this software for any
                      6:  * purpose with or without fee is hereby granted, provided that the above
                      7:  * copyright notice and this permission notice appear in all copies.
                      8:  *
                      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.
                     16:  */
                     17: #include <stdio.h>
                     18: #include <string.h>
                     19:
                     20: #include "mandoc.h"
1.4       kristaps   21: #include "man.h"
1.1       schwarze   22: #include "mdoc.h"
                     23: #include "main.h"
                     24:
1.5       kristaps   25: #define        DECL_ARGS const struct mdoc_meta *m, \
                     26:                  const struct mdoc_node *n, \
                     27:                  struct mman *mm
1.1       schwarze   28:
1.5       kristaps   29: struct mman {
                     30:        int               need_space; /* next word needs prior ws */
                     31:        int               need_nl; /* next word needs prior nl */
                     32: };
1.1       schwarze   33:
                     34: struct manact {
1.5       kristaps   35:        int             (*cond)(DECL_ARGS); /* DON'T run actions */
                     36:        int             (*pre)(DECL_ARGS); /* pre-node action */
                     37:        void            (*post)(DECL_ARGS); /* post-node action */
                     38:        const char       *prefix; /* pre-node string constant */
                     39:        const char       *suffix; /* post-node string constant */
1.1       schwarze   40: };
                     41:
1.5       kristaps   42: static int       cond_body(DECL_ARGS);
1.1       schwarze   43: static int       cond_head(DECL_ARGS);
1.5       kristaps   44: static void      post_bd(DECL_ARGS);
                     45: static void      post_dl(DECL_ARGS);
1.1       schwarze   46: static void      post_enc(DECL_ARGS);
1.5       kristaps   47: static void      post_nm(DECL_ARGS);
1.1       schwarze   48: static void      post_percent(DECL_ARGS);
1.5       kristaps   49: static void      post_pf(DECL_ARGS);
1.3       schwarze   50: static void      post_sect(DECL_ARGS);
1.5       kristaps   51: static void      post_sp(DECL_ARGS);
1.3       schwarze   52: static int       pre_ap(DECL_ARGS);
                     53: static int       pre_bd(DECL_ARGS);
                     54: static int       pre_br(DECL_ARGS);
1.1       schwarze   55: static int       pre_dl(DECL_ARGS);
1.5       kristaps   56: static int       pre_enc(DECL_ARGS);
1.1       schwarze   57: static int       pre_it(DECL_ARGS);
                     58: static int       pre_nm(DECL_ARGS);
                     59: static int       pre_ns(DECL_ARGS);
                     60: static int       pre_pp(DECL_ARGS);
1.3       schwarze   61: static int       pre_sp(DECL_ARGS);
1.5       kristaps   62: static int       pre_sect(DECL_ARGS);
1.1       schwarze   63: static int       pre_xr(DECL_ARGS);
1.5       kristaps   64: static void      print_word(struct mman *, const char *);
                     65: static void      print_node(DECL_ARGS);
1.1       schwarze   66:
1.3       schwarze   67: static const struct manact manacts[MDOC_MAX + 1] = {
                     68:        { NULL, pre_ap, NULL, NULL, NULL }, /* Ap */
                     69:        { NULL, NULL, NULL, NULL, NULL }, /* Dd */
                     70:        { NULL, NULL, NULL, NULL, NULL }, /* Dt */
1.1       schwarze   71:        { NULL, NULL, NULL, NULL, NULL }, /* _Os */
1.3       schwarze   72:        { NULL, pre_sect, post_sect, ".SH", NULL }, /* Sh */
                     73:        { NULL, pre_sect, post_sect, ".SS", NULL }, /* Ss */
1.1       schwarze   74:        { NULL, pre_pp, NULL, NULL, NULL }, /* Pp */
1.3       schwarze   75:        { cond_body, pre_dl, post_dl, NULL, NULL }, /* D1 */
1.1       schwarze   76:        { cond_body, pre_dl, post_dl, NULL, NULL }, /* Dl */
1.3       schwarze   77:        { cond_body, pre_bd, post_bd, NULL, NULL }, /* Bd */
                     78:        { NULL, NULL, NULL, NULL, NULL }, /* Ed */
                     79:        { NULL, NULL, NULL, NULL, NULL }, /* Bl */
                     80:        { NULL, NULL, NULL, NULL, NULL }, /* El */
1.1       schwarze   81:        { NULL, pre_it, NULL, NULL, NULL }, /* _It */
                     82:        { NULL, NULL, NULL, NULL, NULL }, /* _Ad */
                     83:        { NULL, NULL, NULL, NULL, NULL }, /* _An */
                     84:        { NULL, pre_enc, post_enc, "\\fI", "\\fP" }, /* Ar */
                     85:        { NULL, NULL, NULL, NULL, NULL }, /* _Cd */
                     86:        { NULL, pre_enc, post_enc, "\\fB", "\\fP" }, /* Cm */
                     87:        { NULL, NULL, NULL, NULL, NULL }, /* _Dv */
                     88:        { NULL, NULL, NULL, NULL, NULL }, /* _Er */
                     89:        { NULL, NULL, NULL, NULL, NULL }, /* _Ev */
                     90:        { NULL, pre_enc, post_enc, "The \\fB",
                     91:            "\\fP\nutility exits 0 on success, and >0 if an error occurs."
                     92:            }, /* Ex */
                     93:        { NULL, NULL, NULL, NULL, NULL }, /* _Fa */
                     94:        { NULL, NULL, NULL, NULL, NULL }, /* _Fd */
                     95:        { NULL, pre_enc, post_enc, "\\fB-", "\\fP" }, /* Fl */
                     96:        { NULL, NULL, NULL, NULL, NULL }, /* _Fn */
                     97:        { NULL, NULL, NULL, NULL, NULL }, /* _Ft */
1.3       schwarze   98:        { NULL, pre_enc, post_enc, "\\fB", "\\fP" }, /* Ic */
1.1       schwarze   99:        { NULL, NULL, NULL, NULL, NULL }, /* _In */
                    100:        { NULL, NULL, NULL, NULL, NULL }, /* _Li */
                    101:        { cond_head, pre_enc, NULL, "\\- ", NULL }, /* Nd */
                    102:        { NULL, pre_nm, post_nm, NULL, NULL }, /* Nm */
                    103:        { cond_body, pre_enc, post_enc, "[", "]" }, /* Op */
                    104:        { NULL, NULL, NULL, NULL, NULL }, /* _Ot */
                    105:        { NULL, pre_enc, post_enc, "\\fI", "\\fP" }, /* _Pa */
1.6     ! kristaps  106:        { NULL, pre_enc, post_enc, "The \\fB",
        !           107:                "\\fP\nfunction returns the value 0 if successful;\n"
        !           108:                "otherwise the value -1 is returned and the global\n"
        !           109:                "variable \\fIerrno\\fP is set to indicate the error."
        !           110:                }, /* Rv */
1.1       schwarze  111:        { NULL, NULL, NULL, NULL, NULL }, /* _St */
                    112:        { NULL, NULL, NULL, NULL, NULL }, /* _Va */
                    113:        { NULL, NULL, NULL, NULL, NULL }, /* _Vt */
                    114:        { NULL, pre_xr, NULL, NULL, NULL }, /* _Xr */
                    115:        { NULL, NULL, post_percent, NULL, NULL }, /* _%A */
                    116:        { NULL, NULL, NULL, NULL, NULL }, /* _%B */
                    117:        { NULL, NULL, post_percent, NULL, NULL }, /* _%D */
                    118:        { NULL, NULL, NULL, NULL, NULL }, /* _%I */
                    119:        { NULL, pre_enc, post_percent, "\\fI", "\\fP" }, /* %J */
                    120:        { NULL, NULL, NULL, NULL, NULL }, /* _%N */
                    121:        { NULL, NULL, NULL, NULL, NULL }, /* _%O */
                    122:        { NULL, NULL, NULL, NULL, NULL }, /* _%P */
                    123:        { NULL, NULL, NULL, NULL, NULL }, /* _%R */
                    124:        { NULL, pre_enc, post_percent, "\"", "\"" }, /* %T */
                    125:        { NULL, NULL, NULL, NULL, NULL }, /* _%V */
                    126:        { NULL, NULL, NULL, NULL, NULL }, /* _Ac */
                    127:        { NULL, NULL, NULL, NULL, NULL }, /* _Ao */
                    128:        { cond_body, pre_enc, post_enc, "<", ">" }, /* Aq */
                    129:        { NULL, NULL, NULL, NULL, NULL }, /* _At */
1.3       schwarze  130:        { NULL, NULL, NULL, NULL, NULL }, /* Bc */
1.1       schwarze  131:        { NULL, NULL, NULL, NULL, NULL }, /* _Bf */
1.3       schwarze  132:        { cond_body, pre_enc, post_enc, "[", "]" }, /* Bo */
                    133:        { cond_body, pre_enc, post_enc, "[", "]" }, /* Bq */
1.1       schwarze  134:        { NULL, NULL, NULL, NULL, NULL }, /* _Bsx */
                    135:        { NULL, NULL, NULL, NULL, NULL }, /* _Bx */
                    136:        { NULL, NULL, NULL, NULL, NULL }, /* _Db */
                    137:        { NULL, NULL, NULL, NULL, NULL }, /* _Dc */
                    138:        { NULL, NULL, NULL, NULL, NULL }, /* _Do */
                    139:        { cond_body, pre_enc, post_enc, "``", "''" }, /* Dq */
                    140:        { NULL, NULL, NULL, NULL, NULL }, /* _Ec */
                    141:        { NULL, NULL, NULL, NULL, NULL }, /* _Ef */
1.3       schwarze  142:        { NULL, pre_enc, post_enc, "\\fI", "\\fP" }, /* Em */
1.1       schwarze  143:        { NULL, NULL, NULL, NULL, NULL }, /* _Eo */
                    144:        { NULL, NULL, NULL, NULL, NULL }, /* _Fx */
                    145:        { NULL, NULL, NULL, NULL, NULL }, /* _Ms */
                    146:        { NULL, NULL, NULL, NULL, NULL }, /* _No */
                    147:        { NULL, pre_ns, NULL, NULL, NULL }, /* Ns */
                    148:        { NULL, NULL, NULL, NULL, NULL }, /* _Nx */
                    149:        { NULL, NULL, NULL, NULL, NULL }, /* _Ox */
1.3       schwarze  150:        { NULL, NULL, NULL, NULL, NULL }, /* Pc */
                    151:        { NULL, NULL, post_pf, NULL, NULL }, /* Pf */
                    152:        { cond_body, pre_enc, post_enc, "(", ")" }, /* Po */
                    153:        { cond_body, pre_enc, post_enc, "(", ")" }, /* Pq */
1.1       schwarze  154:        { NULL, NULL, NULL, NULL, NULL }, /* _Qc */
                    155:        { cond_body, pre_enc, post_enc, "`", "'" }, /* Ql */
                    156:        { NULL, NULL, NULL, NULL, NULL }, /* _Qo */
                    157:        { NULL, NULL, NULL, NULL, NULL }, /* _Qq */
                    158:        { NULL, NULL, NULL, NULL, NULL }, /* _Re */
                    159:        { cond_body, pre_pp, NULL, NULL, NULL }, /* Rs */
                    160:        { NULL, NULL, NULL, NULL, NULL }, /* _Sc */
                    161:        { NULL, NULL, NULL, NULL, NULL }, /* _So */
                    162:        { cond_body, pre_enc, post_enc, "`", "'" }, /* Sq */
                    163:        { NULL, NULL, NULL, NULL, NULL }, /* _Sm */
1.3       schwarze  164:        { NULL, pre_enc, post_enc, "\\fI", "\\fP" }, /* Sx */
                    165:        { NULL, pre_enc, post_enc, "\\fB", "\\fP" }, /* Sy */
1.1       schwarze  166:        { NULL, NULL, NULL, NULL, NULL }, /* _Tn */
                    167:        { NULL, NULL, NULL, NULL, NULL }, /* _Ux */
                    168:        { NULL, NULL, NULL, NULL, NULL }, /* _Xc */
                    169:        { NULL, NULL, NULL, NULL, NULL }, /* _Xo */
                    170:        { NULL, NULL, NULL, NULL, NULL }, /* _Fo */
                    171:        { NULL, NULL, NULL, NULL, NULL }, /* _Fc */
1.3       schwarze  172:        { cond_body, pre_enc, post_enc, "[", "]" }, /* Oo */
1.1       schwarze  173:        { NULL, NULL, NULL, NULL, NULL }, /* _Oc */
                    174:        { NULL, NULL, NULL, NULL, NULL }, /* _Bk */
                    175:        { NULL, NULL, NULL, NULL, NULL }, /* _Ek */
                    176:        { NULL, NULL, NULL, NULL, NULL }, /* _Bt */
                    177:        { NULL, NULL, NULL, NULL, NULL }, /* _Hf */
                    178:        { NULL, NULL, NULL, NULL, NULL }, /* _Fr */
                    179:        { NULL, NULL, NULL, NULL, NULL }, /* _Ud */
                    180:        { NULL, NULL, NULL, NULL, NULL }, /* _Lb */
1.3       schwarze  181:        { NULL, pre_pp, NULL, NULL, NULL }, /* Lp */
1.1       schwarze  182:        { NULL, NULL, NULL, NULL, NULL }, /* _Lk */
                    183:        { NULL, NULL, NULL, NULL, NULL }, /* _Mt */
                    184:        { NULL, NULL, NULL, NULL, NULL }, /* _Brq */
                    185:        { NULL, NULL, NULL, NULL, NULL }, /* _Bro */
                    186:        { NULL, NULL, NULL, NULL, NULL }, /* _Brc */
                    187:        { NULL, NULL, NULL, NULL, NULL }, /* _%C */
                    188:        { NULL, NULL, NULL, NULL, NULL }, /* _Es */
                    189:        { NULL, NULL, NULL, NULL, NULL }, /* _En */
                    190:        { NULL, NULL, NULL, NULL, NULL }, /* _Dx */
                    191:        { NULL, NULL, NULL, NULL, NULL }, /* _%Q */
1.3       schwarze  192:        { NULL, pre_br, NULL, NULL, NULL }, /* br */
                    193:        { NULL, pre_sp, post_sp, NULL, NULL }, /* sp */
1.1       schwarze  194:        { NULL, NULL, NULL, NULL, NULL }, /* _%U */
                    195:        { NULL, NULL, NULL, NULL, NULL }, /* _Ta */
1.3       schwarze  196:        { NULL, NULL, NULL, NULL, NULL }, /* ROOT */
1.1       schwarze  197: };
                    198:
                    199: static void
1.5       kristaps  200: print_word(struct mman *mm, const char *s)
1.1       schwarze  201: {
1.5       kristaps  202:
                    203:        if (mm->need_nl) {
                    204:                /*
                    205:                 * If we need a newline, print it now and start afresh.
                    206:                 */
1.1       schwarze  207:                putchar('\n');
1.5       kristaps  208:                mm->need_space = 0;
                    209:                mm->need_nl = 0;
                    210:        } else if (mm->need_space && '\0' != s[0])
                    211:                /*
                    212:                 * If we need a space, only print it before
                    213:                 * (1) a nonzero length word;
                    214:                 * (2) a word that is non-punctuation; and
                    215:                 * (3) if punctuation, non-terminating puncutation.
                    216:                 */
                    217:                if (NULL == strchr(".,:;)]?!", s[0]) || '\0' != s[1])
                    218:                        putchar(' ');
                    219:
                    220:        /*
                    221:         * Reassign needing space if we're not following opening
                    222:         * punctuation.
                    223:         */
                    224:        mm->need_space =
                    225:                ('(' != s[0] && '[' != s[0]) || '\0' != s[1];
                    226:
1.1       schwarze  227:        for ( ; *s; s++) {
                    228:                switch (*s) {
                    229:                case (ASCII_NBRSP):
                    230:                        printf("\\~");
                    231:                        break;
                    232:                case (ASCII_HYPH):
                    233:                        putchar('-');
                    234:                        break;
                    235:                default:
1.5       kristaps  236:                        putchar((unsigned char)*s);
1.1       schwarze  237:                        break;
                    238:                }
                    239:        }
1.4       kristaps  240: }
                    241:
                    242: void
                    243: man_man(void *arg, const struct man *man)
                    244: {
                    245:
1.5       kristaps  246:        /*
                    247:         * Dump the keep buffer.
                    248:         * We're guaranteed by now that this exists (is non-NULL).
                    249:         * Flush stdout afterward, just in case.
                    250:         */
1.4       kristaps  251:        fputs(mparse_getkeep(man_mparse(man)), stdout);
1.5       kristaps  252:        fflush(stdout);
1.1       schwarze  253: }
                    254:
                    255: void
                    256: man_mdoc(void *arg, const struct mdoc *mdoc)
                    257: {
                    258:        const struct mdoc_meta *m;
                    259:        const struct mdoc_node *n;
1.5       kristaps  260:        struct mman             mm;
1.1       schwarze  261:
                    262:        m = mdoc_meta(mdoc);
                    263:        n = mdoc_node(mdoc);
                    264:
1.3       schwarze  265:        printf(".TH \"%s\" \"%s\" \"%s\" \"%s\" \"%s\"",
1.5       kristaps  266:                        m->title, m->msec, m->date, m->os, m->vol);
1.1       schwarze  267:
1.5       kristaps  268:        memset(&mm, 0, sizeof(struct mman));
                    269:
                    270:        mm.need_nl = 1;
                    271:        print_node(m, n, &mm);
1.3       schwarze  272:        putchar('\n');
1.1       schwarze  273: }
                    274:
                    275: static void
                    276: print_node(DECL_ARGS)
                    277: {
                    278:        const struct mdoc_node  *prev, *sub;
1.5       kristaps  279:        const struct manact     *act;
1.1       schwarze  280:        int                      cond, do_sub;
1.5       kristaps  281:
                    282:        /*
                    283:         * Break the line if we were parsed subsequent the current node.
                    284:         * This makes the page structure be more consistent.
                    285:         */
1.1       schwarze  286:        prev = n->prev ? n->prev : n->parent;
                    287:        if (prev && prev->line < n->line)
1.5       kristaps  288:                mm->need_nl = 1;
1.1       schwarze  289:
1.5       kristaps  290:        act = NULL;
1.1       schwarze  291:        cond = 0;
                    292:        do_sub = 1;
1.5       kristaps  293:
1.1       schwarze  294:        if (MDOC_TEXT == n->type) {
1.5       kristaps  295:                /*
                    296:                 * Make sure that we don't happen to start with a
                    297:                 * control character at the start of a line.
                    298:                 */
                    299:                if (mm->need_nl && ('.' == *n->string ||
                    300:                                        '\'' == *n->string)) {
                    301:                        print_word(mm, "\\&");
                    302:                        mm->need_space = 0;
1.3       schwarze  303:                }
1.5       kristaps  304:                print_word(mm, n->string);
1.1       schwarze  305:        } else {
1.5       kristaps  306:                /*
                    307:                 * Conditionally run the pre-node action handler for a
                    308:                 * node.
                    309:                 */
1.1       schwarze  310:                act = manacts + n->tok;
1.5       kristaps  311:                cond = NULL == act->cond || (*act->cond)(m, n, mm);
1.1       schwarze  312:                if (cond && act->pre)
1.5       kristaps  313:                        do_sub = (*act->pre)(m, n, mm);
1.1       schwarze  314:        }
                    315:
1.5       kristaps  316:        /*
                    317:         * Conditionally run all child nodes.
                    318:         * Note that this iterates over children instead of using
                    319:         * recursion.  This prevents unnecessary depth in the stack.
                    320:         */
1.1       schwarze  321:        if (do_sub)
                    322:                for (sub = n->child; sub; sub = sub->next)
1.5       kristaps  323:                        print_node(m, sub, mm);
1.1       schwarze  324:
1.5       kristaps  325:        /*
                    326:         * Lastly, conditionally run the post-node handler.
                    327:         */
1.1       schwarze  328:        if (cond && act->post)
1.5       kristaps  329:                (*act->post)(m, n, mm);
1.1       schwarze  330: }
                    331:
                    332: static int
                    333: cond_head(DECL_ARGS)
                    334: {
1.5       kristaps  335:
1.1       schwarze  336:        return(MDOC_HEAD == n->type);
                    337: }
                    338:
                    339: static int
                    340: cond_body(DECL_ARGS)
                    341: {
1.5       kristaps  342:
1.1       schwarze  343:        return(MDOC_BODY == n->type);
                    344: }
                    345:
1.5       kristaps  346: /*
                    347:  * Output a font encoding before a node, e.g., \fR.
                    348:  * This obviously has no trailing space.
                    349:  */
1.1       schwarze  350: static int
                    351: pre_enc(DECL_ARGS)
                    352: {
1.5       kristaps  353:        const char      *prefix;
1.1       schwarze  354:
                    355:        prefix = manacts[n->tok].prefix;
                    356:        if (NULL == prefix)
                    357:                return(1);
1.5       kristaps  358:        print_word(mm, prefix);
                    359:        mm->need_space = 0;
1.1       schwarze  360:        return(1);
                    361: }
                    362:
1.5       kristaps  363: /*
                    364:  * Output a font encoding subsequent a node, e.g., \fP.
                    365:  */
1.1       schwarze  366: static void
                    367: post_enc(DECL_ARGS)
                    368: {
                    369:        const char *suffix;
                    370:
                    371:        suffix = manacts[n->tok].suffix;
                    372:        if (NULL == suffix)
                    373:                return;
1.5       kristaps  374:        mm->need_space = 0;
                    375:        print_word(mm, suffix);
1.1       schwarze  376: }
                    377:
1.5       kristaps  378: /*
                    379:  * Used in listings (percent = %A, e.g.).
                    380:  * FIXME: this is incomplete.
                    381:  * It doesn't print a nice ", and" for lists.
                    382:  */
1.1       schwarze  383: static void
                    384: post_percent(DECL_ARGS)
                    385: {
                    386:
1.5       kristaps  387:        post_enc(m, n, mm);
1.1       schwarze  388:        if (n->next)
1.5       kristaps  389:                print_word(mm, ",");
1.1       schwarze  390:        else {
1.5       kristaps  391:                print_word(mm, ".");
                    392:                mm->need_nl = 1;
1.1       schwarze  393:        }
                    394: }
                    395:
1.5       kristaps  396: /*
                    397:  * Print before a section header.
                    398:  */
1.1       schwarze  399: static int
1.3       schwarze  400: pre_sect(DECL_ARGS)
                    401: {
                    402:
                    403:        if (MDOC_HEAD != n->type)
                    404:                return(1);
1.5       kristaps  405:        mm->need_nl = 1;
                    406:        print_word(mm, manacts[n->tok].prefix);
                    407:        print_word(mm, "\"");
                    408:        mm->need_space = 0;
1.3       schwarze  409:        return(1);
                    410: }
                    411:
1.5       kristaps  412: /*
                    413:  * Print subsequent a section header.
                    414:  */
1.3       schwarze  415: static void
                    416: post_sect(DECL_ARGS)
                    417: {
                    418:
                    419:        if (MDOC_HEAD != n->type)
                    420:                return;
1.5       kristaps  421:        mm->need_space = 0;
                    422:        print_word(mm, "\"");
                    423:        mm->need_nl = 1;
1.3       schwarze  424: }
                    425:
                    426: static int
                    427: pre_ap(DECL_ARGS)
                    428: {
                    429:
1.5       kristaps  430:        mm->need_space = 0;
                    431:        print_word(mm, "'");
                    432:        mm->need_space = 0;
1.3       schwarze  433:        return(0);
                    434: }
                    435:
                    436: static int
                    437: pre_bd(DECL_ARGS)
                    438: {
                    439:
                    440:        if (DISP_unfilled == n->norm->Bd.type ||
                    441:            DISP_literal  == n->norm->Bd.type) {
1.5       kristaps  442:                mm->need_nl = 1;
                    443:                print_word(mm, ".nf");
1.3       schwarze  444:        }
1.5       kristaps  445:        mm->need_nl = 1;
1.3       schwarze  446:        return(1);
                    447: }
                    448:
                    449: static void
                    450: post_bd(DECL_ARGS)
                    451: {
                    452:
                    453:        if (DISP_unfilled == n->norm->Bd.type ||
                    454:            DISP_literal  == n->norm->Bd.type) {
1.5       kristaps  455:                mm->need_nl = 1;
                    456:                print_word(mm, ".fi");
1.3       schwarze  457:        }
1.5       kristaps  458:        mm->need_nl = 1;
1.3       schwarze  459: }
                    460:
                    461: static int
                    462: pre_br(DECL_ARGS)
                    463: {
                    464:
1.5       kristaps  465:        mm->need_nl = 1;
                    466:        print_word(mm, ".br");
                    467:        mm->need_nl = 1;
1.3       schwarze  468:        return(0);
                    469: }
                    470:
                    471: static int
1.1       schwarze  472: pre_dl(DECL_ARGS)
                    473: {
                    474:
1.5       kristaps  475:        mm->need_nl = 1;
                    476:        print_word(mm, ".RS 6n");
                    477:        mm->need_nl = 1;
1.1       schwarze  478:        return(1);
                    479: }
                    480:
                    481: static void
                    482: post_dl(DECL_ARGS)
                    483: {
                    484:
1.5       kristaps  485:        mm->need_nl = 1;
                    486:        print_word(mm, ".RE");
                    487:        mm->need_nl = 1;
1.1       schwarze  488: }
                    489:
                    490: static int
                    491: pre_it(DECL_ARGS)
                    492: {
                    493:        const struct mdoc_node *bln;
                    494:
                    495:        if (MDOC_HEAD == n->type) {
1.5       kristaps  496:                mm->need_nl = 1;
                    497:                print_word(mm, ".TP");
1.1       schwarze  498:                bln = n->parent->parent->prev;
1.3       schwarze  499:                switch (bln->norm->Bl.type) {
                    500:                case (LIST_bullet):
1.5       kristaps  501:                        print_word(mm, "4n");
                    502:                        mm->need_nl = 1;
                    503:                        print_word(mm, "\\fBo\\fP");
1.3       schwarze  504:                        break;
                    505:                default:
                    506:                        if (bln->norm->Bl.width)
1.5       kristaps  507:                                print_word(mm, bln->norm->Bl.width);
1.3       schwarze  508:                        break;
                    509:                }
1.5       kristaps  510:                mm->need_nl = 1;
1.1       schwarze  511:        }
                    512:        return(1);
                    513: }
                    514:
                    515: static int
                    516: pre_nm(DECL_ARGS)
                    517: {
                    518:
                    519:        if (MDOC_ELEM != n->type && MDOC_HEAD != n->type)
                    520:                return(1);
1.5       kristaps  521:        print_word(mm, "\\fB");
                    522:        mm->need_space = 0;
1.1       schwarze  523:        if (NULL == n->child)
1.5       kristaps  524:                print_word(mm, m->name);
1.1       schwarze  525:        return(1);
                    526: }
                    527:
                    528: static void
                    529: post_nm(DECL_ARGS)
                    530: {
                    531:
                    532:        if (MDOC_ELEM != n->type && MDOC_HEAD != n->type)
                    533:                return;
1.5       kristaps  534:        mm->need_space = 0;
                    535:        print_word(mm, "\\fP");
1.1       schwarze  536: }
                    537:
                    538: static int
                    539: pre_ns(DECL_ARGS)
                    540: {
                    541:
1.5       kristaps  542:        mm->need_space = 0;
1.1       schwarze  543:        return(0);
                    544: }
                    545:
1.3       schwarze  546: static void
                    547: post_pf(DECL_ARGS)
                    548: {
                    549:
1.5       kristaps  550:        mm->need_space = 0;
1.3       schwarze  551: }
                    552:
1.1       schwarze  553: static int
                    554: pre_pp(DECL_ARGS)
                    555: {
                    556:
1.5       kristaps  557:        mm->need_nl = 1;
1.1       schwarze  558:        if (MDOC_It == n->parent->tok)
1.5       kristaps  559:                print_word(mm, ".sp");
1.1       schwarze  560:        else
1.5       kristaps  561:                print_word(mm, ".PP");
                    562:        mm->need_nl = 1;
1.1       schwarze  563:        return(1);
                    564: }
                    565:
                    566: static int
1.3       schwarze  567: pre_sp(DECL_ARGS)
1.1       schwarze  568: {
                    569:
1.5       kristaps  570:        mm->need_nl = 1;
                    571:        print_word(mm, ".sp");
1.1       schwarze  572:        return(1);
                    573: }
                    574:
                    575: static void
1.3       schwarze  576: post_sp(DECL_ARGS)
1.1       schwarze  577: {
                    578:
1.5       kristaps  579:        mm->need_nl = 1;
1.1       schwarze  580: }
                    581:
                    582: static int
                    583: pre_xr(DECL_ARGS)
                    584: {
                    585:
                    586:        n = n->child;
                    587:        if (NULL == n)
                    588:                return(0);
1.5       kristaps  589:        print_node(m, n, mm);
1.1       schwarze  590:        n = n->next;
                    591:        if (NULL == n)
                    592:                return(0);
1.5       kristaps  593:        mm->need_space = 0;
                    594:        print_word(mm, "(");
                    595:        print_node(m, n, mm);
                    596:        print_word(mm, ")");
1.1       schwarze  597:        return(0);
                    598: }

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