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Annotation of mandoc/mdoc_man.c, Revision 1.12

1.12    ! schwarze    1: /*     $Id: mdoc_man.c,v 1.11 2012/07/07 13:46:59 schwarze Exp $ */
1.1       schwarze    2: /*
1.11      schwarze    3:  * Copyright (c) 2011, 2012 Ingo Schwarze <schwarze@openbsd.org>
1.1       schwarze    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:  */
1.7       kristaps   17: #ifdef HAVE_CONFIG_H
                     18: #include "config.h"
                     19: #endif
                     20:
1.12    ! schwarze   21: #include <assert.h>
1.1       schwarze   22: #include <stdio.h>
                     23: #include <string.h>
                     24:
                     25: #include "mandoc.h"
1.11      schwarze   26: #include "out.h"
1.4       kristaps   27: #include "man.h"
1.1       schwarze   28: #include "mdoc.h"
                     29: #include "main.h"
                     30:
1.5       kristaps   31: #define        DECL_ARGS const struct mdoc_meta *m, \
                     32:                  const struct mdoc_node *n, \
                     33:                  struct mman *mm
1.1       schwarze   34:
1.5       kristaps   35: struct mman {
1.12    ! schwarze   36:        int               mode_space; /* spacing mode: 1 = on */
1.5       kristaps   37:        int               need_space; /* next word needs prior ws */
                     38:        int               need_nl; /* next word needs prior nl */
                     39: };
1.1       schwarze   40:
                     41: struct manact {
1.5       kristaps   42:        int             (*cond)(DECL_ARGS); /* DON'T run actions */
                     43:        int             (*pre)(DECL_ARGS); /* pre-node action */
                     44:        void            (*post)(DECL_ARGS); /* post-node action */
                     45:        const char       *prefix; /* pre-node string constant */
                     46:        const char       *suffix; /* post-node string constant */
1.1       schwarze   47: };
                     48:
1.5       kristaps   49: static int       cond_body(DECL_ARGS);
1.1       schwarze   50: static int       cond_head(DECL_ARGS);
1.5       kristaps   51: static void      post_bd(DECL_ARGS);
                     52: static void      post_dl(DECL_ARGS);
1.1       schwarze   53: static void      post_enc(DECL_ARGS);
1.5       kristaps   54: static void      post_nm(DECL_ARGS);
1.1       schwarze   55: static void      post_percent(DECL_ARGS);
1.5       kristaps   56: static void      post_pf(DECL_ARGS);
1.3       schwarze   57: static void      post_sect(DECL_ARGS);
1.5       kristaps   58: static void      post_sp(DECL_ARGS);
1.3       schwarze   59: static int       pre_ap(DECL_ARGS);
                     60: static int       pre_bd(DECL_ARGS);
                     61: static int       pre_br(DECL_ARGS);
1.8       schwarze   62: static int       pre_bx(DECL_ARGS);
1.1       schwarze   63: static int       pre_dl(DECL_ARGS);
1.5       kristaps   64: static int       pre_enc(DECL_ARGS);
1.1       schwarze   65: static int       pre_it(DECL_ARGS);
                     66: static int       pre_nm(DECL_ARGS);
                     67: static int       pre_ns(DECL_ARGS);
                     68: static int       pre_pp(DECL_ARGS);
1.12    ! schwarze   69: static int       pre_sm(DECL_ARGS);
1.3       schwarze   70: static int       pre_sp(DECL_ARGS);
1.5       kristaps   71: static int       pre_sect(DECL_ARGS);
1.8       schwarze   72: static int       pre_ux(DECL_ARGS);
1.1       schwarze   73: static int       pre_xr(DECL_ARGS);
1.5       kristaps   74: static void      print_word(struct mman *, const char *);
1.11      schwarze   75: static void      print_offs(struct mman *, const char *);
1.5       kristaps   76: static void      print_node(DECL_ARGS);
1.1       schwarze   77:
1.3       schwarze   78: static const struct manact manacts[MDOC_MAX + 1] = {
                     79:        { NULL, pre_ap, NULL, NULL, NULL }, /* Ap */
                     80:        { NULL, NULL, NULL, NULL, NULL }, /* Dd */
                     81:        { NULL, NULL, NULL, NULL, NULL }, /* Dt */
1.8       schwarze   82:        { NULL, NULL, NULL, NULL, NULL }, /* Os */
1.3       schwarze   83:        { NULL, pre_sect, post_sect, ".SH", NULL }, /* Sh */
                     84:        { NULL, pre_sect, post_sect, ".SS", NULL }, /* Ss */
1.1       schwarze   85:        { NULL, pre_pp, NULL, NULL, NULL }, /* Pp */
1.3       schwarze   86:        { cond_body, pre_dl, post_dl, NULL, NULL }, /* D1 */
1.1       schwarze   87:        { cond_body, pre_dl, post_dl, NULL, NULL }, /* Dl */
1.3       schwarze   88:        { cond_body, pre_bd, post_bd, NULL, NULL }, /* Bd */
                     89:        { NULL, NULL, NULL, NULL, NULL }, /* Ed */
                     90:        { NULL, NULL, NULL, NULL, NULL }, /* Bl */
                     91:        { NULL, NULL, NULL, NULL, NULL }, /* El */
1.1       schwarze   92:        { NULL, pre_it, NULL, NULL, NULL }, /* _It */
1.9       schwarze   93:        { NULL, pre_enc, post_enc, "\\fI", "\\fP" }, /* Ad */
1.1       schwarze   94:        { NULL, NULL, NULL, NULL, NULL }, /* _An */
                     95:        { NULL, pre_enc, post_enc, "\\fI", "\\fP" }, /* Ar */
1.9       schwarze   96:        { NULL, pre_enc, post_enc, "\\fB", "\\fP" }, /* Cd */
1.1       schwarze   97:        { NULL, pre_enc, post_enc, "\\fB", "\\fP" }, /* Cm */
1.9       schwarze   98:        { NULL, pre_enc, post_enc, "\\fR", "\\fP" }, /* Dv */
                     99:        { NULL, pre_enc, post_enc, "\\fR", "\\fP" }, /* Er */
                    100:        { NULL, pre_enc, post_enc, "\\fR", "\\fP" }, /* Ev */
1.1       schwarze  101:        { NULL, pre_enc, post_enc, "The \\fB",
                    102:            "\\fP\nutility exits 0 on success, and >0 if an error occurs."
                    103:            }, /* Ex */
                    104:        { NULL, NULL, NULL, NULL, NULL }, /* _Fa */
                    105:        { NULL, NULL, NULL, NULL, NULL }, /* _Fd */
                    106:        { NULL, pre_enc, post_enc, "\\fB-", "\\fP" }, /* Fl */
                    107:        { NULL, NULL, NULL, NULL, NULL }, /* _Fn */
                    108:        { NULL, NULL, NULL, NULL, NULL }, /* _Ft */
1.3       schwarze  109:        { NULL, pre_enc, post_enc, "\\fB", "\\fP" }, /* Ic */
1.1       schwarze  110:        { NULL, NULL, NULL, NULL, NULL }, /* _In */
1.9       schwarze  111:        { NULL, pre_enc, post_enc, "\\fR", "\\fP" }, /* Li */
1.1       schwarze  112:        { cond_head, pre_enc, NULL, "\\- ", NULL }, /* Nd */
                    113:        { NULL, pre_nm, post_nm, NULL, NULL }, /* Nm */
                    114:        { cond_body, pre_enc, post_enc, "[", "]" }, /* Op */
1.8       schwarze  115:        { NULL, NULL, NULL, NULL, NULL }, /* Ot */
                    116:        { NULL, pre_enc, post_enc, "\\fI", "\\fP" }, /* Pa */
1.6       kristaps  117:        { NULL, pre_enc, post_enc, "The \\fB",
                    118:                "\\fP\nfunction returns the value 0 if successful;\n"
                    119:                "otherwise the value -1 is returned and the global\n"
                    120:                "variable \\fIerrno\\fP is set to indicate the error."
                    121:                }, /* Rv */
1.8       schwarze  122:        { NULL, NULL, NULL, NULL, NULL }, /* St */
1.1       schwarze  123:        { NULL, NULL, NULL, NULL, NULL }, /* _Va */
                    124:        { NULL, NULL, NULL, NULL, NULL }, /* _Vt */
1.8       schwarze  125:        { NULL, pre_xr, NULL, NULL, NULL }, /* Xr */
1.1       schwarze  126:        { NULL, NULL, post_percent, NULL, NULL }, /* _%A */
                    127:        { NULL, NULL, NULL, NULL, NULL }, /* _%B */
                    128:        { NULL, NULL, post_percent, NULL, NULL }, /* _%D */
                    129:        { NULL, NULL, NULL, NULL, NULL }, /* _%I */
                    130:        { NULL, pre_enc, post_percent, "\\fI", "\\fP" }, /* %J */
                    131:        { NULL, NULL, NULL, NULL, NULL }, /* _%N */
                    132:        { NULL, NULL, NULL, NULL, NULL }, /* _%O */
                    133:        { NULL, NULL, NULL, NULL, NULL }, /* _%P */
                    134:        { NULL, NULL, NULL, NULL, NULL }, /* _%R */
                    135:        { NULL, pre_enc, post_percent, "\"", "\"" }, /* %T */
                    136:        { NULL, NULL, NULL, NULL, NULL }, /* _%V */
1.9       schwarze  137:        { NULL, NULL, NULL, NULL, NULL }, /* Ac */
                    138:        { cond_body, pre_enc, post_enc, "<", ">" }, /* Ao */
1.1       schwarze  139:        { cond_body, pre_enc, post_enc, "<", ">" }, /* Aq */
1.8       schwarze  140:        { NULL, NULL, NULL, NULL, NULL }, /* At */
1.3       schwarze  141:        { NULL, NULL, NULL, NULL, NULL }, /* Bc */
1.1       schwarze  142:        { NULL, NULL, NULL, NULL, NULL }, /* _Bf */
1.3       schwarze  143:        { cond_body, pre_enc, post_enc, "[", "]" }, /* Bo */
                    144:        { cond_body, pre_enc, post_enc, "[", "]" }, /* Bq */
1.8       schwarze  145:        { NULL, pre_ux, NULL, "BSD/OS", NULL }, /* Bsx */
                    146:        { NULL, pre_bx, NULL, NULL, NULL }, /* Bx */
                    147:        { NULL, NULL, NULL, NULL, NULL }, /* Db */
1.9       schwarze  148:        { NULL, NULL, NULL, NULL, NULL }, /* Dc */
                    149:        { cond_body, pre_enc, post_enc, "``", "''" }, /* Do */
1.1       schwarze  150:        { cond_body, pre_enc, post_enc, "``", "''" }, /* Dq */
                    151:        { NULL, NULL, NULL, NULL, NULL }, /* _Ec */
                    152:        { NULL, NULL, NULL, NULL, NULL }, /* _Ef */
1.3       schwarze  153:        { NULL, pre_enc, post_enc, "\\fI", "\\fP" }, /* Em */
1.1       schwarze  154:        { NULL, NULL, NULL, NULL, NULL }, /* _Eo */
1.8       schwarze  155:        { NULL, pre_ux, NULL, "FreeBSD", NULL }, /* Fx */
1.9       schwarze  156:        { NULL, pre_enc, post_enc, "\\fB", "\\fP" }, /* Ms */
                    157:        { NULL, NULL, NULL, NULL, NULL }, /* No */
1.1       schwarze  158:        { NULL, pre_ns, NULL, NULL, NULL }, /* Ns */
1.8       schwarze  159:        { NULL, pre_ux, NULL, "NetBSD", NULL }, /* Nx */
                    160:        { NULL, pre_ux, NULL, "OpenBSD", NULL }, /* Ox */
1.3       schwarze  161:        { NULL, NULL, NULL, NULL, NULL }, /* Pc */
                    162:        { NULL, NULL, post_pf, NULL, NULL }, /* Pf */
                    163:        { cond_body, pre_enc, post_enc, "(", ")" }, /* Po */
                    164:        { cond_body, pre_enc, post_enc, "(", ")" }, /* Pq */
1.9       schwarze  165:        { NULL, NULL, NULL, NULL, NULL }, /* Qc */
1.1       schwarze  166:        { cond_body, pre_enc, post_enc, "`", "'" }, /* Ql */
1.9       schwarze  167:        { cond_body, pre_enc, post_enc, "\"", "\"" }, /* Qo */
                    168:        { cond_body, pre_enc, post_enc, "\"", "\"" }, /* Qq */
                    169:        { NULL, NULL, NULL, NULL, NULL }, /* Re */
1.1       schwarze  170:        { cond_body, pre_pp, NULL, NULL, NULL }, /* Rs */
1.9       schwarze  171:        { NULL, NULL, NULL, NULL, NULL }, /* Sc */
                    172:        { cond_body, pre_enc, post_enc, "`", "'" }, /* So */
1.1       schwarze  173:        { cond_body, pre_enc, post_enc, "`", "'" }, /* Sq */
1.12    ! schwarze  174:        { NULL, pre_sm, NULL, NULL, NULL }, /* Sm */
1.3       schwarze  175:        { NULL, pre_enc, post_enc, "\\fI", "\\fP" }, /* Sx */
                    176:        { NULL, pre_enc, post_enc, "\\fB", "\\fP" }, /* Sy */
1.9       schwarze  177:        { NULL, pre_enc, post_enc, "\\fR", "\\fP" }, /* Tn */
1.8       schwarze  178:        { NULL, pre_ux, NULL, "UNIX", NULL }, /* Ux */
1.1       schwarze  179:        { NULL, NULL, NULL, NULL, NULL }, /* _Xc */
                    180:        { NULL, NULL, NULL, NULL, NULL }, /* _Xo */
                    181:        { NULL, NULL, NULL, NULL, NULL }, /* _Fo */
                    182:        { NULL, NULL, NULL, NULL, NULL }, /* _Fc */
1.3       schwarze  183:        { cond_body, pre_enc, post_enc, "[", "]" }, /* Oo */
1.9       schwarze  184:        { NULL, NULL, NULL, NULL, NULL }, /* Oc */
1.1       schwarze  185:        { NULL, NULL, NULL, NULL, NULL }, /* _Bk */
                    186:        { NULL, NULL, NULL, NULL, NULL }, /* _Ek */
1.8       schwarze  187:        { NULL, pre_ux, NULL, "is currently in beta test.", NULL }, /* Bt */
                    188:        { NULL, NULL, NULL, NULL, NULL }, /* Hf */
                    189:        { NULL, NULL, NULL, NULL, NULL }, /* Fr */
                    190:        { NULL, pre_ux, NULL, "currently under development.", NULL }, /* Ud */
1.1       schwarze  191:        { NULL, NULL, NULL, NULL, NULL }, /* _Lb */
1.3       schwarze  192:        { NULL, pre_pp, NULL, NULL, NULL }, /* Lp */
1.1       schwarze  193:        { NULL, NULL, NULL, NULL, NULL }, /* _Lk */
                    194:        { NULL, NULL, NULL, NULL, NULL }, /* _Mt */
1.9       schwarze  195:        { cond_body, pre_enc, post_enc, "{", "}" }, /* Brq */
                    196:        { cond_body, pre_enc, post_enc, "{", "}" }, /* Bro */
                    197:        { NULL, NULL, NULL, NULL, NULL }, /* Brc */
1.1       schwarze  198:        { NULL, NULL, NULL, NULL, NULL }, /* _%C */
                    199:        { NULL, NULL, NULL, NULL, NULL }, /* _Es */
                    200:        { NULL, NULL, NULL, NULL, NULL }, /* _En */
1.8       schwarze  201:        { NULL, pre_ux, NULL, "DragonFly", NULL }, /* Dx */
1.1       schwarze  202:        { NULL, NULL, NULL, NULL, NULL }, /* _%Q */
1.3       schwarze  203:        { NULL, pre_br, NULL, NULL, NULL }, /* br */
                    204:        { NULL, pre_sp, post_sp, NULL, NULL }, /* sp */
1.1       schwarze  205:        { NULL, NULL, NULL, NULL, NULL }, /* _%U */
                    206:        { NULL, NULL, NULL, NULL, NULL }, /* _Ta */
1.3       schwarze  207:        { NULL, NULL, NULL, NULL, NULL }, /* ROOT */
1.1       schwarze  208: };
                    209:
                    210: static void
1.5       kristaps  211: print_word(struct mman *mm, const char *s)
1.1       schwarze  212: {
1.5       kristaps  213:
                    214:        if (mm->need_nl) {
                    215:                /*
                    216:                 * If we need a newline, print it now and start afresh.
                    217:                 */
1.1       schwarze  218:                putchar('\n');
1.5       kristaps  219:                mm->need_space = 0;
                    220:                mm->need_nl = 0;
                    221:        } else if (mm->need_space && '\0' != s[0])
                    222:                /*
                    223:                 * If we need a space, only print it before
                    224:                 * (1) a nonzero length word;
                    225:                 * (2) a word that is non-punctuation; and
                    226:                 * (3) if punctuation, non-terminating puncutation.
                    227:                 */
                    228:                if (NULL == strchr(".,:;)]?!", s[0]) || '\0' != s[1])
                    229:                        putchar(' ');
                    230:
                    231:        /*
                    232:         * Reassign needing space if we're not following opening
                    233:         * punctuation.
                    234:         */
1.12    ! schwarze  235:        mm->need_space = mm->mode_space &&
        !           236:                (('(' != s[0] && '[' != s[0]) || '\0' != s[1]);
1.5       kristaps  237:
1.1       schwarze  238:        for ( ; *s; s++) {
                    239:                switch (*s) {
                    240:                case (ASCII_NBRSP):
                    241:                        printf("\\~");
                    242:                        break;
                    243:                case (ASCII_HYPH):
                    244:                        putchar('-');
                    245:                        break;
                    246:                default:
1.5       kristaps  247:                        putchar((unsigned char)*s);
1.1       schwarze  248:                        break;
                    249:                }
                    250:        }
1.4       kristaps  251: }
                    252:
1.11      schwarze  253: static void
                    254: print_offs(struct mman *mm, const char *v)
                    255: {
                    256:        char              buf[24];
                    257:        struct roffsu     su;
                    258:        size_t            sz;
                    259:
                    260:        if (NULL == v || '\0' == *v || 0 == strcmp(v, "left"))
                    261:                sz = 0;
                    262:        else if (0 == strcmp(v, "indent"))
                    263:                sz = 6;
                    264:        else if (0 == strcmp(v, "indent-two"))
                    265:                sz = 12;
                    266:        else if (a2roffsu(v, &su, SCALE_MAX)) {
                    267:                print_word(mm, v);
                    268:                return;
                    269:        } else
                    270:                sz = strlen(v);
                    271:
                    272:        snprintf(buf, sizeof(buf), "%ldn", sz);
                    273:        print_word(mm, buf);
                    274: }
                    275:
1.4       kristaps  276: void
                    277: man_man(void *arg, const struct man *man)
                    278: {
                    279:
1.5       kristaps  280:        /*
                    281:         * Dump the keep buffer.
                    282:         * We're guaranteed by now that this exists (is non-NULL).
                    283:         * Flush stdout afterward, just in case.
                    284:         */
1.4       kristaps  285:        fputs(mparse_getkeep(man_mparse(man)), stdout);
1.5       kristaps  286:        fflush(stdout);
1.1       schwarze  287: }
                    288:
                    289: void
                    290: man_mdoc(void *arg, const struct mdoc *mdoc)
                    291: {
                    292:        const struct mdoc_meta *m;
                    293:        const struct mdoc_node *n;
1.5       kristaps  294:        struct mman             mm;
1.1       schwarze  295:
                    296:        m = mdoc_meta(mdoc);
                    297:        n = mdoc_node(mdoc);
                    298:
1.3       schwarze  299:        printf(".TH \"%s\" \"%s\" \"%s\" \"%s\" \"%s\"",
1.5       kristaps  300:                        m->title, m->msec, m->date, m->os, m->vol);
1.1       schwarze  301:
1.5       kristaps  302:        memset(&mm, 0, sizeof(struct mman));
                    303:
1.12    ! schwarze  304:        mm.mode_space = 1;
1.5       kristaps  305:        mm.need_nl = 1;
                    306:        print_node(m, n, &mm);
1.3       schwarze  307:        putchar('\n');
1.1       schwarze  308: }
                    309:
                    310: static void
                    311: print_node(DECL_ARGS)
                    312: {
                    313:        const struct mdoc_node  *prev, *sub;
1.5       kristaps  314:        const struct manact     *act;
1.1       schwarze  315:        int                      cond, do_sub;
1.5       kristaps  316:
                    317:        /*
                    318:         * Break the line if we were parsed subsequent the current node.
                    319:         * This makes the page structure be more consistent.
                    320:         */
1.1       schwarze  321:        prev = n->prev ? n->prev : n->parent;
1.10      schwarze  322:        if (prev && prev->line < n->line && MDOC_Ns != prev->tok)
1.5       kristaps  323:                mm->need_nl = 1;
1.1       schwarze  324:
1.5       kristaps  325:        act = NULL;
1.1       schwarze  326:        cond = 0;
                    327:        do_sub = 1;
1.5       kristaps  328:
1.1       schwarze  329:        if (MDOC_TEXT == n->type) {
1.5       kristaps  330:                /*
                    331:                 * Make sure that we don't happen to start with a
                    332:                 * control character at the start of a line.
                    333:                 */
                    334:                if (mm->need_nl && ('.' == *n->string ||
                    335:                                        '\'' == *n->string)) {
                    336:                        print_word(mm, "\\&");
                    337:                        mm->need_space = 0;
1.3       schwarze  338:                }
1.5       kristaps  339:                print_word(mm, n->string);
1.1       schwarze  340:        } else {
1.5       kristaps  341:                /*
                    342:                 * Conditionally run the pre-node action handler for a
                    343:                 * node.
                    344:                 */
1.1       schwarze  345:                act = manacts + n->tok;
1.5       kristaps  346:                cond = NULL == act->cond || (*act->cond)(m, n, mm);
1.1       schwarze  347:                if (cond && act->pre)
1.5       kristaps  348:                        do_sub = (*act->pre)(m, n, mm);
1.1       schwarze  349:        }
                    350:
1.5       kristaps  351:        /*
                    352:         * Conditionally run all child nodes.
                    353:         * Note that this iterates over children instead of using
                    354:         * recursion.  This prevents unnecessary depth in the stack.
                    355:         */
1.1       schwarze  356:        if (do_sub)
                    357:                for (sub = n->child; sub; sub = sub->next)
1.5       kristaps  358:                        print_node(m, sub, mm);
1.1       schwarze  359:
1.5       kristaps  360:        /*
                    361:         * Lastly, conditionally run the post-node handler.
                    362:         */
1.1       schwarze  363:        if (cond && act->post)
1.5       kristaps  364:                (*act->post)(m, n, mm);
1.1       schwarze  365: }
                    366:
                    367: static int
                    368: cond_head(DECL_ARGS)
                    369: {
1.5       kristaps  370:
1.1       schwarze  371:        return(MDOC_HEAD == n->type);
                    372: }
                    373:
                    374: static int
                    375: cond_body(DECL_ARGS)
                    376: {
1.5       kristaps  377:
1.1       schwarze  378:        return(MDOC_BODY == n->type);
                    379: }
                    380:
1.5       kristaps  381: /*
                    382:  * Output a font encoding before a node, e.g., \fR.
                    383:  * This obviously has no trailing space.
                    384:  */
1.1       schwarze  385: static int
                    386: pre_enc(DECL_ARGS)
                    387: {
1.5       kristaps  388:        const char      *prefix;
1.1       schwarze  389:
                    390:        prefix = manacts[n->tok].prefix;
                    391:        if (NULL == prefix)
                    392:                return(1);
1.5       kristaps  393:        print_word(mm, prefix);
                    394:        mm->need_space = 0;
1.1       schwarze  395:        return(1);
                    396: }
                    397:
1.5       kristaps  398: /*
                    399:  * Output a font encoding subsequent a node, e.g., \fP.
                    400:  */
1.1       schwarze  401: static void
                    402: post_enc(DECL_ARGS)
                    403: {
                    404:        const char *suffix;
                    405:
                    406:        suffix = manacts[n->tok].suffix;
                    407:        if (NULL == suffix)
                    408:                return;
1.5       kristaps  409:        mm->need_space = 0;
                    410:        print_word(mm, suffix);
1.10      schwarze  411:        if (MDOC_Fl == n->tok && 0 == n->nchild)
                    412:                mm->need_space = 0;
1.1       schwarze  413: }
                    414:
1.5       kristaps  415: /*
                    416:  * Used in listings (percent = %A, e.g.).
                    417:  * FIXME: this is incomplete.
                    418:  * It doesn't print a nice ", and" for lists.
                    419:  */
1.1       schwarze  420: static void
                    421: post_percent(DECL_ARGS)
                    422: {
                    423:
1.5       kristaps  424:        post_enc(m, n, mm);
1.1       schwarze  425:        if (n->next)
1.5       kristaps  426:                print_word(mm, ",");
1.1       schwarze  427:        else {
1.5       kristaps  428:                print_word(mm, ".");
                    429:                mm->need_nl = 1;
1.1       schwarze  430:        }
                    431: }
                    432:
1.5       kristaps  433: /*
                    434:  * Print before a section header.
                    435:  */
1.1       schwarze  436: static int
1.3       schwarze  437: pre_sect(DECL_ARGS)
                    438: {
                    439:
                    440:        if (MDOC_HEAD != n->type)
                    441:                return(1);
1.5       kristaps  442:        mm->need_nl = 1;
                    443:        print_word(mm, manacts[n->tok].prefix);
                    444:        print_word(mm, "\"");
                    445:        mm->need_space = 0;
1.3       schwarze  446:        return(1);
                    447: }
                    448:
1.5       kristaps  449: /*
                    450:  * Print subsequent a section header.
                    451:  */
1.3       schwarze  452: static void
                    453: post_sect(DECL_ARGS)
                    454: {
                    455:
                    456:        if (MDOC_HEAD != n->type)
                    457:                return;
1.5       kristaps  458:        mm->need_space = 0;
                    459:        print_word(mm, "\"");
                    460:        mm->need_nl = 1;
1.3       schwarze  461: }
                    462:
                    463: static int
                    464: pre_ap(DECL_ARGS)
                    465: {
                    466:
1.5       kristaps  467:        mm->need_space = 0;
                    468:        print_word(mm, "'");
                    469:        mm->need_space = 0;
1.3       schwarze  470:        return(0);
                    471: }
                    472:
                    473: static int
                    474: pre_bd(DECL_ARGS)
                    475: {
                    476:
1.11      schwarze  477:        if (0 == n->norm->Bd.comp) {
                    478:                mm->need_nl = 1;
                    479:                print_word(mm, ".sp");
                    480:        }
1.3       schwarze  481:        if (DISP_unfilled == n->norm->Bd.type ||
                    482:            DISP_literal  == n->norm->Bd.type) {
1.5       kristaps  483:                mm->need_nl = 1;
                    484:                print_word(mm, ".nf");
1.3       schwarze  485:        }
1.5       kristaps  486:        mm->need_nl = 1;
1.11      schwarze  487:        print_word(mm, ".RS");
                    488:        print_offs(mm, n->norm->Bd.offs);
                    489:        mm->need_nl = 1;
1.3       schwarze  490:        return(1);
                    491: }
                    492:
                    493: static void
                    494: post_bd(DECL_ARGS)
                    495: {
                    496:
1.11      schwarze  497:        mm->need_nl = 1;
                    498:        print_word(mm, ".RE");
1.3       schwarze  499:        if (DISP_unfilled == n->norm->Bd.type ||
                    500:            DISP_literal  == n->norm->Bd.type) {
1.5       kristaps  501:                mm->need_nl = 1;
                    502:                print_word(mm, ".fi");
1.3       schwarze  503:        }
1.5       kristaps  504:        mm->need_nl = 1;
1.3       schwarze  505: }
                    506:
                    507: static int
                    508: pre_br(DECL_ARGS)
                    509: {
                    510:
1.5       kristaps  511:        mm->need_nl = 1;
                    512:        print_word(mm, ".br");
                    513:        mm->need_nl = 1;
1.3       schwarze  514:        return(0);
                    515: }
                    516:
                    517: static int
1.8       schwarze  518: pre_bx(DECL_ARGS)
                    519: {
                    520:
                    521:        n = n->child;
                    522:        if (n) {
                    523:                print_word(mm, n->string);
                    524:                mm->need_space = 0;
                    525:                n = n->next;
                    526:        }
                    527:        print_word(mm, "BSD");
                    528:        if (NULL == n)
                    529:                return(0);
                    530:        mm->need_space = 0;
                    531:        print_word(mm, "-");
                    532:        mm->need_space = 0;
                    533:        print_word(mm, n->string);
                    534:        return(0);
                    535: }
                    536:
                    537: static int
1.1       schwarze  538: pre_dl(DECL_ARGS)
                    539: {
                    540:
1.5       kristaps  541:        mm->need_nl = 1;
                    542:        print_word(mm, ".RS 6n");
                    543:        mm->need_nl = 1;
1.1       schwarze  544:        return(1);
                    545: }
                    546:
                    547: static void
                    548: post_dl(DECL_ARGS)
                    549: {
                    550:
1.5       kristaps  551:        mm->need_nl = 1;
                    552:        print_word(mm, ".RE");
                    553:        mm->need_nl = 1;
1.1       schwarze  554: }
                    555:
                    556: static int
                    557: pre_it(DECL_ARGS)
                    558: {
                    559:        const struct mdoc_node *bln;
                    560:
                    561:        if (MDOC_HEAD == n->type) {
1.5       kristaps  562:                mm->need_nl = 1;
                    563:                print_word(mm, ".TP");
1.1       schwarze  564:                bln = n->parent->parent->prev;
1.3       schwarze  565:                switch (bln->norm->Bl.type) {
                    566:                case (LIST_bullet):
1.5       kristaps  567:                        print_word(mm, "4n");
                    568:                        mm->need_nl = 1;
                    569:                        print_word(mm, "\\fBo\\fP");
1.3       schwarze  570:                        break;
                    571:                default:
                    572:                        if (bln->norm->Bl.width)
1.5       kristaps  573:                                print_word(mm, bln->norm->Bl.width);
1.3       schwarze  574:                        break;
                    575:                }
1.5       kristaps  576:                mm->need_nl = 1;
1.1       schwarze  577:        }
                    578:        return(1);
                    579: }
                    580:
                    581: static int
                    582: pre_nm(DECL_ARGS)
                    583: {
                    584:
                    585:        if (MDOC_ELEM != n->type && MDOC_HEAD != n->type)
                    586:                return(1);
1.10      schwarze  587:        if (MDOC_SYNPRETTY & n->flags) {
                    588:                mm->need_nl = 1;
                    589:                print_word(mm, ".br");
                    590:                mm->need_nl = 1;
                    591:        }
1.5       kristaps  592:        print_word(mm, "\\fB");
                    593:        mm->need_space = 0;
1.1       schwarze  594:        if (NULL == n->child)
1.5       kristaps  595:                print_word(mm, m->name);
1.1       schwarze  596:        return(1);
                    597: }
                    598:
                    599: static void
                    600: post_nm(DECL_ARGS)
                    601: {
                    602:
                    603:        if (MDOC_ELEM != n->type && MDOC_HEAD != n->type)
                    604:                return;
1.5       kristaps  605:        mm->need_space = 0;
                    606:        print_word(mm, "\\fP");
1.1       schwarze  607: }
                    608:
                    609: static int
                    610: pre_ns(DECL_ARGS)
                    611: {
                    612:
1.5       kristaps  613:        mm->need_space = 0;
1.1       schwarze  614:        return(0);
                    615: }
                    616:
1.3       schwarze  617: static void
                    618: post_pf(DECL_ARGS)
                    619: {
                    620:
1.5       kristaps  621:        mm->need_space = 0;
1.3       schwarze  622: }
                    623:
1.1       schwarze  624: static int
                    625: pre_pp(DECL_ARGS)
                    626: {
                    627:
1.5       kristaps  628:        mm->need_nl = 1;
1.1       schwarze  629:        if (MDOC_It == n->parent->tok)
1.5       kristaps  630:                print_word(mm, ".sp");
1.1       schwarze  631:        else
1.5       kristaps  632:                print_word(mm, ".PP");
                    633:        mm->need_nl = 1;
1.10      schwarze  634:        return(MDOC_Rs == n->tok);
1.12    ! schwarze  635: }
        !           636:
        !           637: static int
        !           638: pre_sm(DECL_ARGS)
        !           639: {
        !           640:
        !           641:        assert(n->child && MDOC_TEXT == n->child->type);
        !           642:        if (0 == strcmp("on", n->child->string))
        !           643:                mm->mode_space = 1;
        !           644:        else
        !           645:                mm->mode_space = 0;
        !           646:        return(0);
1.1       schwarze  647: }
                    648:
                    649: static int
1.3       schwarze  650: pre_sp(DECL_ARGS)
1.1       schwarze  651: {
                    652:
1.5       kristaps  653:        mm->need_nl = 1;
                    654:        print_word(mm, ".sp");
1.1       schwarze  655:        return(1);
                    656: }
                    657:
                    658: static void
1.3       schwarze  659: post_sp(DECL_ARGS)
1.1       schwarze  660: {
                    661:
1.5       kristaps  662:        mm->need_nl = 1;
1.1       schwarze  663: }
                    664:
                    665: static int
                    666: pre_xr(DECL_ARGS)
                    667: {
                    668:
                    669:        n = n->child;
                    670:        if (NULL == n)
                    671:                return(0);
1.5       kristaps  672:        print_node(m, n, mm);
1.1       schwarze  673:        n = n->next;
                    674:        if (NULL == n)
                    675:                return(0);
1.5       kristaps  676:        mm->need_space = 0;
                    677:        print_word(mm, "(");
                    678:        print_node(m, n, mm);
                    679:        print_word(mm, ")");
1.1       schwarze  680:        return(0);
1.8       schwarze  681: }
                    682:
                    683: static int
                    684: pre_ux(DECL_ARGS)
                    685: {
                    686:
                    687:        print_word(mm, manacts[n->tok].prefix);
                    688:        if (NULL == n->child)
                    689:                return(0);
                    690:        mm->need_space = 0;
                    691:        print_word(mm, "\\~");
                    692:        mm->need_space = 0;
                    693:        return(1);
1.1       schwarze  694: }

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