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Annotation of mandoc/mdoc_term.c, Revision 1.234

1.234   ! schwarze    1: /*     $Id: mdoc_term.c,v 1.233 2011/07/22 10:50:46 kristaps Exp $ */
1.1       kristaps    2: /*
1.217     schwarze    3:  * Copyright (c) 2008, 2009, 2010, 2011 Kristaps Dzonsons <kristaps@bsd.lv>
1.171     schwarze    4:  * Copyright (c) 2010 Ingo Schwarze <schwarze@openbsd.org>
1.1       kristaps    5:  *
                      6:  * Permission to use, copy, modify, and distribute this software for any
1.6       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:  *
1.6       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:  */
1.107     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>
1.118     kristaps   26: #include <stdint.h>
1.1       kristaps   27: #include <stdio.h>
                     28: #include <stdlib.h>
                     29: #include <string.h>
                     30:
1.125     kristaps   31: #include "mandoc.h"
1.92      kristaps   32: #include "out.h"
1.1       kristaps   33: #include "term.h"
                     34: #include "mdoc.h"
1.89      kristaps   35: #include "main.h"
1.1       kristaps   36:
1.66      kristaps   37: #define        INDENT            5
                     38: #define        HALFINDENT        3
                     39:
1.1       kristaps   40: struct termpair {
                     41:        struct termpair  *ppair;
1.31      kristaps   42:        int               count;
1.1       kristaps   43: };
                     44:
1.31      kristaps   45: #define        DECL_ARGS struct termp *p, \
                     46:                  struct termpair *pair, \
1.86      kristaps   47:                  const struct mdoc_meta *m, \
                     48:                  const struct mdoc_node *n
1.1       kristaps   49:
                     50: struct termact {
                     51:        int     (*pre)(DECL_ARGS);
                     52:        void    (*post)(DECL_ARGS);
                     53: };
                     54:
1.157     kristaps   55: static size_t    a2width(const struct termp *, const char *);
                     56: static size_t    a2height(const struct termp *, const char *);
                     57: static size_t    a2offs(const struct termp *, const char *);
1.96      kristaps   58:
                     59: static void      print_bvspace(struct termp *,
1.151     kristaps   60:                        const struct mdoc_node *,
1.96      kristaps   61:                        const struct mdoc_node *);
1.102     kristaps   62: static void      print_mdoc_node(DECL_ARGS);
1.145     kristaps   63: static void      print_mdoc_nodelist(DECL_ARGS);
1.144     kristaps   64: static void      print_mdoc_head(struct termp *, const void *);
1.145     kristaps   65: static void      print_mdoc_foot(struct termp *, const void *);
1.143     kristaps   66: static void      synopsis_pre(struct termp *,
                     67:                        const struct mdoc_node *);
1.96      kristaps   68:
1.31      kristaps   69: static void      termp____post(DECL_ARGS);
1.203     kristaps   70: static void      termp__t_post(DECL_ARGS);
1.61      kristaps   71: static void      termp_an_post(DECL_ARGS);
1.31      kristaps   72: static void      termp_bd_post(DECL_ARGS);
1.159     schwarze   73: static void      termp_bk_post(DECL_ARGS);
1.31      kristaps   74: static void      termp_bl_post(DECL_ARGS);
                     75: static void      termp_d1_post(DECL_ARGS);
                     76: static void      termp_fo_post(DECL_ARGS);
                     77: static void      termp_in_post(DECL_ARGS);
                     78: static void      termp_it_post(DECL_ARGS);
                     79: static void      termp_lb_post(DECL_ARGS);
1.164     schwarze   80: static void      termp_nm_post(DECL_ARGS);
1.31      kristaps   81: static void      termp_pf_post(DECL_ARGS);
1.188     kristaps   82: static void      termp_quote_post(DECL_ARGS);
1.31      kristaps   83: static void      termp_sh_post(DECL_ARGS);
                     84: static void      termp_ss_post(DECL_ARGS);
                     85:
1.184     kristaps   86: static int       termp__a_pre(DECL_ARGS);
1.203     kristaps   87: static int       termp__t_pre(DECL_ARGS);
1.61      kristaps   88: static int       termp_an_pre(DECL_ARGS);
1.31      kristaps   89: static int       termp_ap_pre(DECL_ARGS);
                     90: static int       termp_bd_pre(DECL_ARGS);
                     91: static int       termp_bf_pre(DECL_ARGS);
1.159     schwarze   92: static int       termp_bk_pre(DECL_ARGS);
1.115     kristaps   93: static int       termp_bl_pre(DECL_ARGS);
1.69      kristaps   94: static int       termp_bold_pre(DECL_ARGS);
1.31      kristaps   95: static int       termp_bt_pre(DECL_ARGS);
1.211     kristaps   96: static int       termp_bx_pre(DECL_ARGS);
1.31      kristaps   97: static int       termp_cd_pre(DECL_ARGS);
                     98: static int       termp_d1_pre(DECL_ARGS);
                     99: static int       termp_ex_pre(DECL_ARGS);
                    100: static int       termp_fa_pre(DECL_ARGS);
1.188     kristaps  101: static int       termp_fd_pre(DECL_ARGS);
1.31      kristaps  102: static int       termp_fl_pre(DECL_ARGS);
                    103: static int       termp_fn_pre(DECL_ARGS);
                    104: static int       termp_fo_pre(DECL_ARGS);
                    105: static int       termp_ft_pre(DECL_ARGS);
1.192     schwarze  106: static int       termp_igndelim_pre(DECL_ARGS);
1.31      kristaps  107: static int       termp_in_pre(DECL_ARGS);
                    108: static int       termp_it_pre(DECL_ARGS);
1.102     kristaps  109: static int       termp_li_pre(DECL_ARGS);
1.31      kristaps  110: static int       termp_lk_pre(DECL_ARGS);
                    111: static int       termp_nd_pre(DECL_ARGS);
                    112: static int       termp_nm_pre(DECL_ARGS);
                    113: static int       termp_ns_pre(DECL_ARGS);
1.188     kristaps  114: static int       termp_quote_pre(DECL_ARGS);
1.31      kristaps  115: static int       termp_rs_pre(DECL_ARGS);
                    116: static int       termp_rv_pre(DECL_ARGS);
                    117: static int       termp_sh_pre(DECL_ARGS);
                    118: static int       termp_sm_pre(DECL_ARGS);
1.45      kristaps  119: static int       termp_sp_pre(DECL_ARGS);
1.31      kristaps  120: static int       termp_ss_pre(DECL_ARGS);
1.69      kristaps  121: static int       termp_under_pre(DECL_ARGS);
1.31      kristaps  122: static int       termp_ud_pre(DECL_ARGS);
1.110     kristaps  123: static int       termp_vt_pre(DECL_ARGS);
1.31      kristaps  124: static int       termp_xr_pre(DECL_ARGS);
                    125: static int       termp_xx_pre(DECL_ARGS);
                    126:
1.70      kristaps  127: static const struct termact termacts[MDOC_MAX] = {
1.14      kristaps  128:        { termp_ap_pre, NULL }, /* Ap */
1.1       kristaps  129:        { NULL, NULL }, /* Dd */
                    130:        { NULL, NULL }, /* Dt */
                    131:        { NULL, NULL }, /* Os */
                    132:        { termp_sh_pre, termp_sh_post }, /* Sh */
                    133:        { termp_ss_pre, termp_ss_post }, /* Ss */
1.76      kristaps  134:        { termp_sp_pre, NULL }, /* Pp */
1.1       kristaps  135:        { termp_d1_pre, termp_d1_post }, /* D1 */
                    136:        { termp_d1_pre, termp_d1_post }, /* Dl */
                    137:        { termp_bd_pre, termp_bd_post }, /* Bd */
                    138:        { NULL, NULL }, /* Ed */
1.115     kristaps  139:        { termp_bl_pre, termp_bl_post }, /* Bl */
1.1       kristaps  140:        { NULL, NULL }, /* El */
                    141:        { termp_it_pre, termp_it_post }, /* It */
1.178     kristaps  142:        { termp_under_pre, NULL }, /* Ad */
1.61      kristaps  143:        { termp_an_pre, termp_an_post }, /* An */
1.69      kristaps  144:        { termp_under_pre, NULL }, /* Ar */
1.1       kristaps  145:        { termp_cd_pre, NULL }, /* Cd */
1.69      kristaps  146:        { termp_bold_pre, NULL }, /* Cm */
1.1       kristaps  147:        { NULL, NULL }, /* Dv */
                    148:        { NULL, NULL }, /* Er */
                    149:        { NULL, NULL }, /* Ev */
                    150:        { termp_ex_pre, NULL }, /* Ex */
                    151:        { termp_fa_pre, NULL }, /* Fa */
1.143     kristaps  152:        { termp_fd_pre, NULL }, /* Fd */
1.1       kristaps  153:        { termp_fl_pre, NULL }, /* Fl */
1.143     kristaps  154:        { termp_fn_pre, NULL }, /* Fn */
1.141     kristaps  155:        { termp_ft_pre, NULL }, /* Ft */
1.69      kristaps  156:        { termp_bold_pre, NULL }, /* Ic */
1.1       kristaps  157:        { termp_in_pre, termp_in_post }, /* In */
1.102     kristaps  158:        { termp_li_pre, NULL }, /* Li */
1.1       kristaps  159:        { termp_nd_pre, NULL }, /* Nd */
1.164     schwarze  160:        { termp_nm_pre, termp_nm_post }, /* Nm */
1.188     kristaps  161:        { termp_quote_pre, termp_quote_post }, /* Op */
1.1       kristaps  162:        { NULL, NULL }, /* Ot */
1.69      kristaps  163:        { termp_under_pre, NULL }, /* Pa */
1.1       kristaps  164:        { termp_rv_pre, NULL }, /* Rv */
1.36      kristaps  165:        { NULL, NULL }, /* St */
1.69      kristaps  166:        { termp_under_pre, NULL }, /* Va */
1.143     kristaps  167:        { termp_vt_pre, NULL }, /* Vt */
1.1       kristaps  168:        { termp_xr_pre, NULL }, /* Xr */
1.184     kristaps  169:        { termp__a_pre, termp____post }, /* %A */
1.84      kristaps  170:        { termp_under_pre, termp____post }, /* %B */
1.1       kristaps  171:        { NULL, termp____post }, /* %D */
1.84      kristaps  172:        { termp_under_pre, termp____post }, /* %I */
1.69      kristaps  173:        { termp_under_pre, termp____post }, /* %J */
1.1       kristaps  174:        { NULL, termp____post }, /* %N */
                    175:        { NULL, termp____post }, /* %O */
                    176:        { NULL, termp____post }, /* %P */
                    177:        { NULL, termp____post }, /* %R */
1.203     kristaps  178:        { termp__t_pre, termp__t_post }, /* %T */
1.1       kristaps  179:        { NULL, termp____post }, /* %V */
                    180:        { NULL, NULL }, /* Ac */
1.188     kristaps  181:        { termp_quote_pre, termp_quote_post }, /* Ao */
                    182:        { termp_quote_pre, termp_quote_post }, /* Aq */
1.35      kristaps  183:        { NULL, NULL }, /* At */
1.1       kristaps  184:        { NULL, NULL }, /* Bc */
                    185:        { termp_bf_pre, NULL }, /* Bf */
1.188     kristaps  186:        { termp_quote_pre, termp_quote_post }, /* Bo */
                    187:        { termp_quote_pre, termp_quote_post }, /* Bq */
1.26      kristaps  188:        { termp_xx_pre, NULL }, /* Bsx */
1.211     kristaps  189:        { termp_bx_pre, NULL }, /* Bx */
1.1       kristaps  190:        { NULL, NULL }, /* Db */
                    191:        { NULL, NULL }, /* Dc */
1.188     kristaps  192:        { termp_quote_pre, termp_quote_post }, /* Do */
                    193:        { termp_quote_pre, termp_quote_post }, /* Dq */
1.112     kristaps  194:        { NULL, NULL }, /* Ec */ /* FIXME: no space */
1.1       kristaps  195:        { NULL, NULL }, /* Ef */
1.69      kristaps  196:        { termp_under_pre, NULL }, /* Em */
1.1       kristaps  197:        { NULL, NULL }, /* Eo */
1.26      kristaps  198:        { termp_xx_pre, NULL }, /* Fx */
1.176     kristaps  199:        { termp_bold_pre, NULL }, /* Ms */
1.192     schwarze  200:        { termp_igndelim_pre, NULL }, /* No */
1.1       kristaps  201:        { termp_ns_pre, NULL }, /* Ns */
1.26      kristaps  202:        { termp_xx_pre, NULL }, /* Nx */
                    203:        { termp_xx_pre, NULL }, /* Ox */
1.1       kristaps  204:        { NULL, NULL }, /* Pc */
1.192     schwarze  205:        { termp_igndelim_pre, termp_pf_post }, /* Pf */
1.188     kristaps  206:        { termp_quote_pre, termp_quote_post }, /* Po */
                    207:        { termp_quote_pre, termp_quote_post }, /* Pq */
1.1       kristaps  208:        { NULL, NULL }, /* Qc */
1.188     kristaps  209:        { termp_quote_pre, termp_quote_post }, /* Ql */
                    210:        { termp_quote_pre, termp_quote_post }, /* Qo */
                    211:        { termp_quote_pre, termp_quote_post }, /* Qq */
1.1       kristaps  212:        { NULL, NULL }, /* Re */
                    213:        { termp_rs_pre, NULL }, /* Rs */
                    214:        { NULL, NULL }, /* Sc */
1.188     kristaps  215:        { termp_quote_pre, termp_quote_post }, /* So */
                    216:        { termp_quote_pre, termp_quote_post }, /* Sq */
1.1       kristaps  217:        { termp_sm_pre, NULL }, /* Sm */
1.69      kristaps  218:        { termp_under_pre, NULL }, /* Sx */
                    219:        { termp_bold_pre, NULL }, /* Sy */
1.1       kristaps  220:        { NULL, NULL }, /* Tn */
1.26      kristaps  221:        { termp_xx_pre, NULL }, /* Ux */
1.1       kristaps  222:        { NULL, NULL }, /* Xc */
                    223:        { NULL, NULL }, /* Xo */
                    224:        { termp_fo_pre, termp_fo_post }, /* Fo */
                    225:        { NULL, NULL }, /* Fc */
1.188     kristaps  226:        { termp_quote_pre, termp_quote_post }, /* Oo */
1.1       kristaps  227:        { NULL, NULL }, /* Oc */
1.159     schwarze  228:        { termp_bk_pre, termp_bk_post }, /* Bk */
1.1       kristaps  229:        { NULL, NULL }, /* Ek */
                    230:        { termp_bt_pre, NULL }, /* Bt */
                    231:        { NULL, NULL }, /* Hf */
                    232:        { NULL, NULL }, /* Fr */
                    233:        { termp_ud_pre, NULL }, /* Ud */
1.37      kristaps  234:        { NULL, termp_lb_post }, /* Lb */
1.76      kristaps  235:        { termp_sp_pre, NULL }, /* Lp */
1.1       kristaps  236:        { termp_lk_pre, NULL }, /* Lk */
1.69      kristaps  237:        { termp_under_pre, NULL }, /* Mt */
1.188     kristaps  238:        { termp_quote_pre, termp_quote_post }, /* Brq */
                    239:        { termp_quote_pre, termp_quote_post }, /* Bro */
1.1       kristaps  240:        { NULL, NULL }, /* Brc */
1.83      kristaps  241:        { NULL, termp____post }, /* %C */
1.81      kristaps  242:        { NULL, NULL }, /* Es */ /* TODO */
                    243:        { NULL, NULL }, /* En */ /* TODO */
1.26      kristaps  244:        { termp_xx_pre, NULL }, /* Dx */
1.83      kristaps  245:        { NULL, termp____post }, /* %Q */
1.76      kristaps  246:        { termp_sp_pre, NULL }, /* br */
1.45      kristaps  247:        { termp_sp_pre, NULL }, /* sp */
1.96      kristaps  248:        { termp_under_pre, termp____post }, /* %U */
1.135     kristaps  249:        { NULL, NULL }, /* Ta */
1.1       kristaps  250: };
                    251:
                    252:
1.70      kristaps  253: void
1.89      kristaps  254: terminal_mdoc(void *arg, const struct mdoc *mdoc)
1.1       kristaps  255: {
1.70      kristaps  256:        const struct mdoc_node  *n;
                    257:        const struct mdoc_meta  *m;
1.89      kristaps  258:        struct termp            *p;
                    259:
                    260:        p = (struct termp *)arg;
1.111     kristaps  261:
                    262:        p->overstep = 0;
1.123     joerg     263:        p->maxrmargin = p->defrmargin;
1.157     kristaps  264:        p->tabwidth = term_len(p, 5);
1.89      kristaps  265:
                    266:        if (NULL == p->symtab)
1.230     kristaps  267:                p->symtab = mchars_alloc();
1.70      kristaps  268:
                    269:        n = mdoc_node(mdoc);
                    270:        m = mdoc_meta(mdoc);
1.146     schwarze  271:
                    272:        term_begin(p, print_mdoc_head, print_mdoc_foot, m);
1.70      kristaps  273:
                    274:        if (n->child)
1.102     kristaps  275:                print_mdoc_nodelist(p, NULL, m, n->child);
1.144     kristaps  276:
                    277:        term_end(p);
1.1       kristaps  278: }
                    279:
                    280:
1.3       kristaps  281: static void
1.102     kristaps  282: print_mdoc_nodelist(DECL_ARGS)
1.1       kristaps  283: {
                    284:
1.102     kristaps  285:        print_mdoc_node(p, pair, m, n);
1.86      kristaps  286:        if (n->next)
1.102     kristaps  287:                print_mdoc_nodelist(p, pair, m, n->next);
1.1       kristaps  288: }
                    289:
                    290:
1.70      kristaps  291: /* ARGSUSED */
1.3       kristaps  292: static void
1.102     kristaps  293: print_mdoc_node(DECL_ARGS)
1.1       kristaps  294: {
1.102     kristaps  295:        int              chld;
                    296:        const void      *font;
1.1       kristaps  297:        struct termpair  npair;
1.30      kristaps  298:        size_t           offset, rmargin;
1.1       kristaps  299:
1.70      kristaps  300:        chld = 1;
1.29      kristaps  301:        offset = p->offset;
1.30      kristaps  302:        rmargin = p->rmargin;
1.102     kristaps  303:        font = term_fontq(p);
1.29      kristaps  304:
1.97      kristaps  305:        memset(&npair, 0, sizeof(struct termpair));
1.1       kristaps  306:        npair.ppair = pair;
1.172     kristaps  307:
                    308:        /*
                    309:         * Keeps only work until the end of a line.  If a keep was
                    310:         * invoked in a prior line, revert it to PREKEEP.
1.197     schwarze  311:         *
                    312:         * Also let SYNPRETTY sections behave as if they were wrapped
                    313:         * in a `Bk' block.
1.172     kristaps  314:         */
                    315:
1.197     schwarze  316:        if (TERMP_KEEP & p->flags || MDOC_SYNPRETTY & n->flags) {
1.172     kristaps  317:                if (n->prev && n->prev->line != n->line) {
                    318:                        p->flags &= ~TERMP_KEEP;
                    319:                        p->flags |= TERMP_PREKEEP;
                    320:                } else if (NULL == n->prev) {
                    321:                        if (n->parent && n->parent->line != n->line) {
                    322:                                p->flags &= ~TERMP_KEEP;
                    323:                                p->flags |= TERMP_PREKEEP;
                    324:                        }
                    325:                }
                    326:        }
1.197     schwarze  327:
                    328:        /*
                    329:         * Since SYNPRETTY sections aren't "turned off" with `Ek',
                    330:         * we have to intuit whether we should disable formatting.
                    331:         */
                    332:
                    333:        if ( ! (MDOC_SYNPRETTY & n->flags) &&
                    334:            ((n->prev   && MDOC_SYNPRETTY & n->prev->flags) ||
                    335:             (n->parent && MDOC_SYNPRETTY & n->parent->flags)))
                    336:                p->flags &= ~(TERMP_KEEP | TERMP_PREKEEP);
1.102     kristaps  337:
1.217     schwarze  338:        /*
                    339:         * After the keep flags have been set up, we may now
                    340:         * produce output.  Note that some pre-handlers do so.
                    341:         */
                    342:
                    343:        switch (n->type) {
                    344:        case (MDOC_TEXT):
                    345:                if (' ' == *n->string && MDOC_LINE & n->flags)
                    346:                        term_newln(p);
1.222     kristaps  347:                if (MDOC_DELIMC & n->flags)
                    348:                        p->flags |= TERMP_NOSPACE;
1.217     schwarze  349:                term_word(p, n->string);
1.222     kristaps  350:                if (MDOC_DELIMO & n->flags)
                    351:                        p->flags |= TERMP_NOSPACE;
1.217     schwarze  352:                break;
                    353:        case (MDOC_EQN):
1.233     kristaps  354:                term_eqn(p, n->eqn);
1.217     schwarze  355:                break;
                    356:        case (MDOC_TBL):
                    357:                term_tbl(p, n->span);
                    358:                break;
                    359:        default:
                    360:                if (termacts[n->tok].pre && ENDBODY_NOT == n->end)
                    361:                        chld = (*termacts[n->tok].pre)
                    362:                                (p, &npair, m, n);
                    363:                break;
                    364:        }
                    365:
1.86      kristaps  366:        if (chld && n->child)
1.102     kristaps  367:                print_mdoc_nodelist(p, &npair, m, n->child);
1.1       kristaps  368:
1.102     kristaps  369:        term_fontpopq(p, font);
1.46      kristaps  370:
1.206     kristaps  371:        switch (n->type) {
                    372:        case (MDOC_TEXT):
                    373:                break;
                    374:        case (MDOC_TBL):
1.216     kristaps  375:                break;
                    376:        case (MDOC_EQN):
1.206     kristaps  377:                break;
                    378:        default:
                    379:                if ( ! termacts[n->tok].post || MDOC_ENDED & n->flags)
                    380:                        break;
1.165     kristaps  381:                (void)(*termacts[n->tok].post)(p, &npair, m, n);
1.162     schwarze  382:
                    383:                /*
                    384:                 * Explicit end tokens not only call the post
                    385:                 * handler, but also tell the respective block
                    386:                 * that it must not call the post handler again.
                    387:                 */
1.165     kristaps  388:                if (ENDBODY_NOT != n->end)
1.162     schwarze  389:                        n->pending->flags |= MDOC_ENDED;
                    390:
                    391:                /*
                    392:                 * End of line terminating an implicit block
                    393:                 * while an explicit block is still open.
                    394:                 * Continue the explicit block without spacing.
                    395:                 */
                    396:                if (ENDBODY_NOSPACE == n->end)
                    397:                        p->flags |= TERMP_NOSPACE;
1.206     kristaps  398:                break;
1.162     schwarze  399:        }
1.121     kristaps  400:
                    401:        if (MDOC_EOS & n->flags)
                    402:                p->flags |= TERMP_SENTENCE;
1.29      kristaps  403:
                    404:        p->offset = offset;
1.30      kristaps  405:        p->rmargin = rmargin;
1.1       kristaps  406: }
                    407:
                    408:
1.3       kristaps  409: static void
1.145     kristaps  410: print_mdoc_foot(struct termp *p, const void *arg)
1.1       kristaps  411: {
1.144     kristaps  412:        const struct mdoc_meta *m;
                    413:
                    414:        m = (const struct mdoc_meta *)arg;
1.1       kristaps  415:
1.102     kristaps  416:        term_fontrepl(p, TERMFONT_NONE);
1.101     kristaps  417:
1.9       kristaps  418:        /*
                    419:         * Output the footer in new-groff style, that is, three columns
                    420:         * with the middle being the manual date and flanking columns
                    421:         * being the operating system:
                    422:         *
                    423:         * SYSTEM                  DATE                    SYSTEM
                    424:         */
                    425:
1.1       kristaps  426:        term_vspace(p);
                    427:
1.9       kristaps  428:        p->offset = 0;
1.157     kristaps  429:        p->rmargin = (p->maxrmargin -
1.220     schwarze  430:                        term_strlen(p, m->date) + term_len(p, 1)) / 2;
1.1       kristaps  431:        p->flags |= TERMP_NOSPACE | TERMP_NOBREAK;
                    432:
1.220     schwarze  433:        term_word(p, m->os);
1.1       kristaps  434:        term_flushln(p);
                    435:
1.9       kristaps  436:        p->offset = p->rmargin;
1.220     schwarze  437:        p->rmargin = p->maxrmargin - term_strlen(p, m->os);
1.234   ! schwarze  438:        p->flags |= TERMP_NOSPACE;
1.9       kristaps  439:
1.220     schwarze  440:        term_word(p, m->date);
1.9       kristaps  441:        term_flushln(p);
                    442:
1.1       kristaps  443:        p->offset = p->rmargin;
                    444:        p->rmargin = p->maxrmargin;
                    445:        p->flags &= ~TERMP_NOBREAK;
1.234   ! schwarze  446:        p->flags |= TERMP_NOSPACE;
1.1       kristaps  447:
1.220     schwarze  448:        term_word(p, m->os);
1.1       kristaps  449:        term_flushln(p);
                    450:
1.9       kristaps  451:        p->offset = 0;
                    452:        p->rmargin = p->maxrmargin;
                    453:        p->flags = 0;
1.1       kristaps  454: }
                    455:
                    456:
1.3       kristaps  457: static void
1.144     kristaps  458: print_mdoc_head(struct termp *p, const void *arg)
1.1       kristaps  459: {
1.98      kristaps  460:        char            buf[BUFSIZ], title[BUFSIZ];
1.144     kristaps  461:        const struct mdoc_meta *m;
                    462:
                    463:        m = (const struct mdoc_meta *)arg;
1.1       kristaps  464:
                    465:        p->rmargin = p->maxrmargin;
                    466:        p->offset = 0;
                    467:
                    468:        /*
                    469:         * The header is strange.  It has three components, which are
                    470:         * really two with the first duplicated.  It goes like this:
                    471:         *
                    472:         * IDENTIFIER              TITLE                   IDENTIFIER
                    473:         *
                    474:         * The IDENTIFIER is NAME(SECTION), which is the command-name
                    475:         * (if given, or "unknown" if not) followed by the manual page
                    476:         * section.  These are given in `Dt'.  The TITLE is a free-form
                    477:         * string depending on the manual volume.  If not specified, it
                    478:         * switches on the manual section.
                    479:         */
                    480:
1.86      kristaps  481:        assert(m->vol);
1.98      kristaps  482:        strlcpy(buf, m->vol, BUFSIZ);
1.1       kristaps  483:
1.86      kristaps  484:        if (m->arch) {
1.98      kristaps  485:                strlcat(buf, " (", BUFSIZ);
                    486:                strlcat(buf, m->arch, BUFSIZ);
                    487:                strlcat(buf, ")", BUFSIZ);
1.1       kristaps  488:        }
                    489:
1.124     kristaps  490:        snprintf(title, BUFSIZ, "%s(%s)", m->title, m->msec);
1.1       kristaps  491:
                    492:        p->offset = 0;
1.157     kristaps  493:        p->rmargin = (p->maxrmargin -
                    494:                        term_strlen(p, buf) + term_len(p, 1)) / 2;
1.1       kristaps  495:        p->flags |= TERMP_NOBREAK | TERMP_NOSPACE;
                    496:
                    497:        term_word(p, title);
                    498:        term_flushln(p);
                    499:
                    500:        p->offset = p->rmargin;
1.157     kristaps  501:        p->rmargin = p->maxrmargin - term_strlen(p, title);
1.234   ! schwarze  502:        p->flags |= TERMP_NOSPACE;
1.1       kristaps  503:
                    504:        term_word(p, buf);
                    505:        term_flushln(p);
                    506:
                    507:        p->offset = p->rmargin;
                    508:        p->rmargin = p->maxrmargin;
                    509:        p->flags &= ~TERMP_NOBREAK;
1.234   ! schwarze  510:        p->flags |= TERMP_NOSPACE;
1.1       kristaps  511:
                    512:        term_word(p, title);
                    513:        term_flushln(p);
                    514:
1.9       kristaps  515:        p->offset = 0;
1.1       kristaps  516:        p->rmargin = p->maxrmargin;
                    517:        p->flags &= ~TERMP_NOSPACE;
                    518: }
                    519:
                    520:
                    521: static size_t
1.157     kristaps  522: a2height(const struct termp *p, const char *v)
1.1       kristaps  523: {
1.92      kristaps  524:        struct roffsu    su;
1.91      kristaps  525:
1.231     kristaps  526:
1.157     kristaps  527:        assert(v);
                    528:        if ( ! a2roffsu(v, &su, SCALE_VS))
1.231     kristaps  529:                SCALE_VS_INIT(&su, atoi(v));
1.91      kristaps  530:
1.157     kristaps  531:        return(term_vspan(p, &su));
1.91      kristaps  532: }
1.1       kristaps  533:
1.40      kristaps  534:
1.91      kristaps  535: static size_t
1.157     kristaps  536: a2width(const struct termp *p, const char *v)
1.91      kristaps  537: {
1.92      kristaps  538:        struct roffsu    su;
1.1       kristaps  539:
1.154     kristaps  540:        assert(v);
                    541:        if ( ! a2roffsu(v, &su, SCALE_MAX))
1.157     kristaps  542:                SCALE_HS_INIT(&su, term_strlen(p, v));
1.1       kristaps  543:
1.157     kristaps  544:        return(term_hspan(p, &su));
1.1       kristaps  545: }
                    546:
                    547:
                    548: static size_t
1.157     kristaps  549: a2offs(const struct termp *p, const char *v)
1.1       kristaps  550: {
1.92      kristaps  551:        struct roffsu    su;
1.1       kristaps  552:
1.148     kristaps  553:        if ('\0' == *v)
1.91      kristaps  554:                return(0);
1.148     kristaps  555:        else if (0 == strcmp(v, "left"))
1.19      kristaps  556:                return(0);
1.148     kristaps  557:        else if (0 == strcmp(v, "indent"))
1.157     kristaps  558:                return(term_len(p, INDENT + 1));
1.148     kristaps  559:        else if (0 == strcmp(v, "indent-two"))
1.157     kristaps  560:                return(term_len(p, (INDENT + 1) * 2));
1.148     kristaps  561:        else if ( ! a2roffsu(v, &su, SCALE_MAX))
1.157     kristaps  562:                SCALE_HS_INIT(&su, term_strlen(p, v));
1.10      kristaps  563:
1.157     kristaps  564:        return(term_hspan(p, &su));
1.1       kristaps  565: }
                    566:
                    567:
1.108     kristaps  568: /*
                    569:  * Determine how much space to print out before block elements of `It'
                    570:  * (and thus `Bl') and `Bd'.  And then go ahead and print that space,
                    571:  * too.
                    572:  */
1.54      kristaps  573: static void
1.151     kristaps  574: print_bvspace(struct termp *p,
                    575:                const struct mdoc_node *bl,
                    576:                const struct mdoc_node *n)
1.1       kristaps  577: {
1.86      kristaps  578:        const struct mdoc_node  *nn;
1.1       kristaps  579:
                    580:        term_newln(p);
1.150     kristaps  581:
1.202     kristaps  582:        if (MDOC_Bd == bl->tok && bl->norm->Bd.comp)
1.150     kristaps  583:                return;
1.202     kristaps  584:        if (MDOC_Bl == bl->tok && bl->norm->Bl.comp)
1.54      kristaps  585:                return;
                    586:
1.85      kristaps  587:        /* Do not vspace directly after Ss/Sh. */
1.1       kristaps  588:
1.86      kristaps  589:        for (nn = n; nn; nn = nn->parent) {
                    590:                if (MDOC_BLOCK != nn->type)
1.1       kristaps  591:                        continue;
1.86      kristaps  592:                if (MDOC_Ss == nn->tok)
1.54      kristaps  593:                        return;
1.86      kristaps  594:                if (MDOC_Sh == nn->tok)
1.54      kristaps  595:                        return;
1.86      kristaps  596:                if (NULL == nn->prev)
1.1       kristaps  597:                        continue;
                    598:                break;
                    599:        }
                    600:
1.85      kristaps  601:        /* A `-column' does not assert vspace within the list. */
1.54      kristaps  602:
1.202     kristaps  603:        if (MDOC_Bl == bl->tok && LIST_column == bl->norm->Bl.type)
1.86      kristaps  604:                if (n->prev && MDOC_It == n->prev->tok)
1.54      kristaps  605:                        return;
                    606:
1.85      kristaps  607:        /* A `-diag' without body does not vspace. */
                    608:
1.202     kristaps  609:        if (MDOC_Bl == bl->tok && LIST_diag == bl->norm->Bl.type)
1.86      kristaps  610:                if (n->prev && MDOC_It == n->prev->tok) {
                    611:                        assert(n->prev->body);
                    612:                        if (NULL == n->prev->body->child)
1.55      kristaps  613:                                return;
                    614:                }
                    615:
1.54      kristaps  616:        term_vspace(p);
1.1       kristaps  617: }
                    618:
                    619:
                    620: /* ARGSUSED */
                    621: static int
                    622: termp_it_pre(DECL_ARGS)
                    623: {
1.86      kristaps  624:        const struct mdoc_node *bl, *nn;
1.1       kristaps  625:        char                    buf[7];
1.170     kristaps  626:        int                     i;
1.108     kristaps  627:        size_t                  width, offset, ncols, dcol;
1.126     kristaps  628:        enum mdoc_list          type;
1.1       kristaps  629:
1.86      kristaps  630:        if (MDOC_BLOCK == n->type) {
1.151     kristaps  631:                print_bvspace(p, n->parent->parent, n);
1.54      kristaps  632:                return(1);
                    633:        }
1.1       kristaps  634:
1.86      kristaps  635:        bl = n->parent->parent->parent;
1.202     kristaps  636:        type = bl->norm->Bl.type;
1.1       kristaps  637:
1.108     kristaps  638:        /*
                    639:         * First calculate width and offset.  This is pretty easy unless
                    640:         * we're a -column list, in which case all prior columns must
                    641:         * be accounted for.
                    642:         */
                    643:
                    644:        width = offset = 0;
                    645:
1.202     kristaps  646:        if (bl->norm->Bl.offs)
                    647:                offset = a2offs(p, bl->norm->Bl.offs);
1.152     kristaps  648:
1.1       kristaps  649:        switch (type) {
1.126     kristaps  650:        case (LIST_column):
1.134     kristaps  651:                if (MDOC_HEAD == n->type)
1.1       kristaps  652:                        break;
1.155     kristaps  653:
1.105     kristaps  654:                /*
1.108     kristaps  655:                 * Imitate groff's column handling:
                    656:                 * - For each earlier column, add its width.
                    657:                 * - For less than 5 columns, add four more blanks per
                    658:                 *   column.
                    659:                 * - For exactly 5 columns, add three more blank per
                    660:                 *   column.
                    661:                 * - For more than 5 columns, add only one column.
1.105     kristaps  662:                 */
1.202     kristaps  663:                ncols = bl->norm->Bl.ncols;
1.170     kristaps  664:
1.108     kristaps  665:                /* LINTED */
1.157     kristaps  666:                dcol = ncols < 5 ? term_len(p, 4) :
                    667:                        ncols == 5 ? term_len(p, 3) : term_len(p, 1);
1.108     kristaps  668:
1.134     kristaps  669:                /*
                    670:                 * Calculate the offset by applying all prior MDOC_BODY,
                    671:                 * so we stop at the MDOC_HEAD (NULL == nn->prev).
                    672:                 */
                    673:
1.108     kristaps  674:                for (i = 0, nn = n->prev;
1.134     kristaps  675:                                nn->prev && i < (int)ncols;
1.108     kristaps  676:                                nn = nn->prev, i++)
                    677:                        offset += dcol + a2width
1.202     kristaps  678:                                (p, bl->norm->Bl.cols[i]);
1.105     kristaps  679:
                    680:                /*
1.108     kristaps  681:                 * When exceeding the declared number of columns, leave
                    682:                 * the remaining widths at 0.  This will later be
                    683:                 * adjusted to the default width of 10, or, for the last
                    684:                 * column, stretched to the right margin.
1.58      kristaps  685:                 */
1.108     kristaps  686:                if (i >= (int)ncols)
                    687:                        break;
1.58      kristaps  688:
1.105     kristaps  689:                /*
1.108     kristaps  690:                 * Use the declared column widths, extended as explained
                    691:                 * in the preceding paragraph.
1.105     kristaps  692:                 */
1.202     kristaps  693:                width = a2width(p, bl->norm->Bl.cols[i]) + dcol;
1.1       kristaps  694:                break;
                    695:        default:
1.202     kristaps  696:                if (NULL == bl->norm->Bl.width)
1.108     kristaps  697:                        break;
                    698:
                    699:                /*
                    700:                 * Note: buffer the width by 2, which is groff's magic
                    701:                 * number for buffering single arguments.  See the above
                    702:                 * handling for column for how this changes.
                    703:                 */
1.202     kristaps  704:                assert(bl->norm->Bl.width);
                    705:                width = a2width(p, bl->norm->Bl.width) + term_len(p, 2);
1.1       kristaps  706:                break;
                    707:        }
                    708:
                    709:        /*
                    710:         * List-type can override the width in the case of fixed-head
                    711:         * values (bullet, dash/hyphen, enum).  Tags need a non-zero
1.67      kristaps  712:         * offset.
1.1       kristaps  713:         */
                    714:
                    715:        switch (type) {
1.126     kristaps  716:        case (LIST_bullet):
1.1       kristaps  717:                /* FALLTHROUGH */
1.126     kristaps  718:        case (LIST_dash):
1.1       kristaps  719:                /* FALLTHROUGH */
1.126     kristaps  720:        case (LIST_hyphen):
1.157     kristaps  721:                if (width < term_len(p, 4))
                    722:                        width = term_len(p, 4);
1.1       kristaps  723:                break;
1.126     kristaps  724:        case (LIST_enum):
1.157     kristaps  725:                if (width < term_len(p, 5))
                    726:                        width = term_len(p, 5);
1.17      kristaps  727:                break;
1.126     kristaps  728:        case (LIST_hang):
1.39      kristaps  729:                if (0 == width)
1.157     kristaps  730:                        width = term_len(p, 8);
1.39      kristaps  731:                break;
1.126     kristaps  732:        case (LIST_column):
1.49      kristaps  733:                /* FALLTHROUGH */
1.126     kristaps  734:        case (LIST_tag):
1.1       kristaps  735:                if (0 == width)
1.157     kristaps  736:                        width = term_len(p, 10);
1.1       kristaps  737:                break;
                    738:        default:
                    739:                break;
                    740:        }
                    741:
                    742:        /*
1.17      kristaps  743:         * Whitespace control.  Inset bodies need an initial space,
                    744:         * while diagonal bodies need two.
1.1       kristaps  745:         */
                    746:
1.51      kristaps  747:        p->flags |= TERMP_NOSPACE;
                    748:
1.1       kristaps  749:        switch (type) {
1.126     kristaps  750:        case (LIST_diag):
1.86      kristaps  751:                if (MDOC_BODY == n->type)
1.62      kristaps  752:                        term_word(p, "\\ \\ ");
1.51      kristaps  753:                break;
1.126     kristaps  754:        case (LIST_inset):
1.86      kristaps  755:                if (MDOC_BODY == n->type)
1.51      kristaps  756:                        term_word(p, "\\ ");
1.1       kristaps  757:                break;
                    758:        default:
                    759:                break;
                    760:        }
                    761:
1.51      kristaps  762:        p->flags |= TERMP_NOSPACE;
                    763:
1.1       kristaps  764:        switch (type) {
1.126     kristaps  765:        case (LIST_diag):
1.86      kristaps  766:                if (MDOC_HEAD == n->type)
1.102     kristaps  767:                        term_fontpush(p, TERMFONT_BOLD);
1.1       kristaps  768:                break;
                    769:        default:
                    770:                break;
                    771:        }
                    772:
                    773:        /*
1.109     kristaps  774:         * Pad and break control.  This is the tricky part.  These flags
                    775:         * are documented in term_flushln() in term.c.  Note that we're
                    776:         * going to unset all of these flags in termp_it_post() when we
                    777:         * exit.
1.1       kristaps  778:         */
                    779:
                    780:        switch (type) {
1.126     kristaps  781:        case (LIST_bullet):
1.1       kristaps  782:                /* FALLTHROUGH */
1.126     kristaps  783:        case (LIST_dash):
1.1       kristaps  784:                /* FALLTHROUGH */
1.126     kristaps  785:        case (LIST_enum):
1.1       kristaps  786:                /* FALLTHROUGH */
1.126     kristaps  787:        case (LIST_hyphen):
1.86      kristaps  788:                if (MDOC_HEAD == n->type)
1.39      kristaps  789:                        p->flags |= TERMP_NOBREAK;
                    790:                break;
1.126     kristaps  791:        case (LIST_hang):
1.86      kristaps  792:                if (MDOC_HEAD == n->type)
1.39      kristaps  793:                        p->flags |= TERMP_NOBREAK;
                    794:                else
1.59      kristaps  795:                        break;
                    796:
                    797:                /*
                    798:                 * This is ugly.  If `-hang' is specified and the body
                    799:                 * is a `Bl' or `Bd', then we want basically to nullify
                    800:                 * the "overstep" effect in term_flushln() and treat
                    801:                 * this as a `-ohang' list instead.
                    802:                 */
1.86      kristaps  803:                if (n->next->child &&
                    804:                                (MDOC_Bl == n->next->child->tok ||
1.234   ! schwarze  805:                                 MDOC_Bd == n->next->child->tok))
1.59      kristaps  806:                        p->flags &= ~TERMP_NOBREAK;
1.234   ! schwarze  807:                else
1.39      kristaps  808:                        p->flags |= TERMP_HANG;
                    809:                break;
1.126     kristaps  810:        case (LIST_tag):
1.86      kristaps  811:                if (MDOC_HEAD == n->type)
1.51      kristaps  812:                        p->flags |= TERMP_NOBREAK | TERMP_TWOSPACE;
1.38      kristaps  813:
1.86      kristaps  814:                if (MDOC_HEAD != n->type)
1.39      kristaps  815:                        break;
1.86      kristaps  816:                if (NULL == n->next || NULL == n->next->child)
1.39      kristaps  817:                        p->flags |= TERMP_DANGLE;
1.1       kristaps  818:                break;
1.126     kristaps  819:        case (LIST_column):
1.134     kristaps  820:                if (MDOC_HEAD == n->type)
                    821:                        break;
                    822:
                    823:                if (NULL == n->next)
                    824:                        p->flags &= ~TERMP_NOBREAK;
                    825:                else
                    826:                        p->flags |= TERMP_NOBREAK;
                    827:
1.1       kristaps  828:                break;
1.126     kristaps  829:        case (LIST_diag):
1.86      kristaps  830:                if (MDOC_HEAD == n->type)
1.1       kristaps  831:                        p->flags |= TERMP_NOBREAK;
                    832:                break;
                    833:        default:
                    834:                break;
                    835:        }
                    836:
                    837:        /*
                    838:         * Margin control.  Set-head-width lists have their right
                    839:         * margins shortened.  The body for these lists has the offset
                    840:         * necessarily lengthened.  Everybody gets the offset.
                    841:         */
                    842:
                    843:        p->offset += offset;
                    844:
                    845:        switch (type) {
1.126     kristaps  846:        case (LIST_hang):
1.59      kristaps  847:                /*
                    848:                 * Same stipulation as above, regarding `-hang'.  We
                    849:                 * don't want to recalculate rmargin and offsets when
                    850:                 * using `Bd' or `Bl' within `-hang' overstep lists.
                    851:                 */
1.86      kristaps  852:                if (MDOC_HEAD == n->type && n->next->child &&
                    853:                                (MDOC_Bl == n->next->child->tok ||
                    854:                                 MDOC_Bd == n->next->child->tok))
1.59      kristaps  855:                        break;
                    856:                /* FALLTHROUGH */
1.126     kristaps  857:        case (LIST_bullet):
1.1       kristaps  858:                /* FALLTHROUGH */
1.126     kristaps  859:        case (LIST_dash):
1.1       kristaps  860:                /* FALLTHROUGH */
1.126     kristaps  861:        case (LIST_enum):
1.1       kristaps  862:                /* FALLTHROUGH */
1.126     kristaps  863:        case (LIST_hyphen):
1.1       kristaps  864:                /* FALLTHROUGH */
1.126     kristaps  865:        case (LIST_tag):
1.49      kristaps  866:                assert(width);
1.86      kristaps  867:                if (MDOC_HEAD == n->type)
1.1       kristaps  868:                        p->rmargin = p->offset + width;
                    869:                else
                    870:                        p->offset += width;
                    871:                break;
1.126     kristaps  872:        case (LIST_column):
1.49      kristaps  873:                assert(width);
1.1       kristaps  874:                p->rmargin = p->offset + width;
1.50      kristaps  875:                /*
                    876:                 * XXX - this behaviour is not documented: the
                    877:                 * right-most column is filled to the right margin.
                    878:                 */
1.134     kristaps  879:                if (MDOC_HEAD == n->type)
                    880:                        break;
                    881:                if (NULL == n->next && p->rmargin < p->maxrmargin)
1.50      kristaps  882:                        p->rmargin = p->maxrmargin;
1.1       kristaps  883:                break;
                    884:        default:
                    885:                break;
                    886:        }
                    887:
                    888:        /*
                    889:         * The dash, hyphen, bullet and enum lists all have a special
1.15      kristaps  890:         * HEAD character (temporarily bold, in some cases).
1.1       kristaps  891:         */
                    892:
1.86      kristaps  893:        if (MDOC_HEAD == n->type)
1.1       kristaps  894:                switch (type) {
1.126     kristaps  895:                case (LIST_bullet):
1.102     kristaps  896:                        term_fontpush(p, TERMFONT_BOLD);
1.1       kristaps  897:                        term_word(p, "\\[bu]");
1.102     kristaps  898:                        term_fontpop(p);
1.1       kristaps  899:                        break;
1.126     kristaps  900:                case (LIST_dash):
1.1       kristaps  901:                        /* FALLTHROUGH */
1.126     kristaps  902:                case (LIST_hyphen):
1.102     kristaps  903:                        term_fontpush(p, TERMFONT_BOLD);
1.27      kristaps  904:                        term_word(p, "\\(hy");
1.102     kristaps  905:                        term_fontpop(p);
1.1       kristaps  906:                        break;
1.126     kristaps  907:                case (LIST_enum):
1.1       kristaps  908:                        (pair->ppair->ppair->count)++;
1.109     kristaps  909:                        snprintf(buf, sizeof(buf), "%d.",
1.1       kristaps  910:                                        pair->ppair->ppair->count);
                    911:                        term_word(p, buf);
                    912:                        break;
                    913:                default:
                    914:                        break;
                    915:                }
                    916:
                    917:        /*
                    918:         * If we're not going to process our children, indicate so here.
                    919:         */
                    920:
                    921:        switch (type) {
1.126     kristaps  922:        case (LIST_bullet):
1.1       kristaps  923:                /* FALLTHROUGH */
1.126     kristaps  924:        case (LIST_item):
1.1       kristaps  925:                /* FALLTHROUGH */
1.126     kristaps  926:        case (LIST_dash):
1.1       kristaps  927:                /* FALLTHROUGH */
1.126     kristaps  928:        case (LIST_hyphen):
1.1       kristaps  929:                /* FALLTHROUGH */
1.126     kristaps  930:        case (LIST_enum):
1.86      kristaps  931:                if (MDOC_HEAD == n->type)
1.1       kristaps  932:                        return(0);
                    933:                break;
1.126     kristaps  934:        case (LIST_column):
1.134     kristaps  935:                if (MDOC_HEAD == n->type)
1.1       kristaps  936:                        return(0);
                    937:                break;
                    938:        default:
                    939:                break;
                    940:        }
                    941:
                    942:        return(1);
                    943: }
                    944:
                    945:
                    946: /* ARGSUSED */
                    947: static void
                    948: termp_it_post(DECL_ARGS)
                    949: {
1.126     kristaps  950:        enum mdoc_list     type;
1.1       kristaps  951:
1.109     kristaps  952:        if (MDOC_BLOCK == n->type)
1.1       kristaps  953:                return;
                    954:
1.202     kristaps  955:        type = n->parent->parent->parent->norm->Bl.type;
1.1       kristaps  956:
                    957:        switch (type) {
1.126     kristaps  958:        case (LIST_item):
1.1       kristaps  959:                /* FALLTHROUGH */
1.126     kristaps  960:        case (LIST_diag):
1.53      kristaps  961:                /* FALLTHROUGH */
1.126     kristaps  962:        case (LIST_inset):
1.86      kristaps  963:                if (MDOC_BODY == n->type)
1.130     schwarze  964:                        term_newln(p);
1.1       kristaps  965:                break;
1.126     kristaps  966:        case (LIST_column):
1.134     kristaps  967:                if (MDOC_BODY == n->type)
1.1       kristaps  968:                        term_flushln(p);
                    969:                break;
                    970:        default:
1.130     schwarze  971:                term_newln(p);
1.1       kristaps  972:                break;
                    973:        }
                    974:
1.109     kristaps  975:        /*
                    976:         * Now that our output is flushed, we can reset our tags.  Since
                    977:         * only `It' sets these flags, we're free to assume that nobody
                    978:         * has munged them in the meanwhile.
                    979:         */
                    980:
                    981:        p->flags &= ~TERMP_DANGLE;
                    982:        p->flags &= ~TERMP_NOBREAK;
                    983:        p->flags &= ~TERMP_TWOSPACE;
                    984:        p->flags &= ~TERMP_HANG;
1.1       kristaps  985: }
                    986:
                    987:
                    988: /* ARGSUSED */
                    989: static int
                    990: termp_nm_pre(DECL_ARGS)
                    991: {
                    992:
1.164     schwarze  993:        if (MDOC_BLOCK == n->type)
                    994:                return(1);
                    995:
                    996:        if (MDOC_BODY == n->type) {
                    997:                if (NULL == n->child)
                    998:                        return(0);
1.234   ! schwarze  999:                p->flags |= TERMP_NOSPACE;
1.164     schwarze 1000:                p->offset += term_len(p, 1) +
                   1001:                    (NULL == n->prev->child ? term_strlen(p, m->name) :
                   1002:                     MDOC_TEXT == n->prev->child->type ?
                   1003:                        term_strlen(p, n->prev->child->string) :
                   1004:                     term_len(p, 5));
                   1005:                return(1);
                   1006:        }
                   1007:
1.125     kristaps 1008:        if (NULL == n->child && NULL == m->name)
1.164     schwarze 1009:                return(0);
1.125     kristaps 1010:
1.177     schwarze 1011:        if (MDOC_HEAD == n->type)
                   1012:                synopsis_pre(p, n->parent);
1.102     kristaps 1013:
1.164     schwarze 1014:        if (MDOC_HEAD == n->type && n->next->child) {
1.185     schwarze 1015:                p->flags |= TERMP_NOSPACE | TERMP_NOBREAK;
                   1016:                p->rmargin = p->offset + term_len(p, 1);
                   1017:                if (NULL == n->child) {
                   1018:                        p->rmargin += term_strlen(p, m->name);
                   1019:                } else if (MDOC_TEXT == n->child->type) {
                   1020:                        p->rmargin += term_strlen(p, n->child->string);
                   1021:                        if (n->child->next)
                   1022:                                p->flags |= TERMP_HANG;
                   1023:                } else {
                   1024:                        p->rmargin += term_len(p, 5);
                   1025:                        p->flags |= TERMP_HANG;
                   1026:                }
1.164     schwarze 1027:        }
                   1028:
1.102     kristaps 1029:        term_fontpush(p, TERMFONT_BOLD);
1.86      kristaps 1030:        if (NULL == n->child)
                   1031:                term_word(p, m->name);
1.1       kristaps 1032:        return(1);
                   1033: }
                   1034:
                   1035:
1.164     schwarze 1036: /* ARGSUSED */
                   1037: static void
                   1038: termp_nm_post(DECL_ARGS)
                   1039: {
                   1040:
                   1041:        if (MDOC_HEAD == n->type && n->next->child) {
                   1042:                term_flushln(p);
                   1043:                p->flags &= ~(TERMP_NOBREAK | TERMP_HANG);
1.234   ! schwarze 1044:        } else if (MDOC_BODY == n->type && n->child)
1.164     schwarze 1045:                term_flushln(p);
                   1046: }
                   1047:
                   1048:
1.1       kristaps 1049: /* ARGSUSED */
                   1050: static int
                   1051: termp_fl_pre(DECL_ARGS)
                   1052: {
                   1053:
1.102     kristaps 1054:        term_fontpush(p, TERMFONT_BOLD);
1.1       kristaps 1055:        term_word(p, "\\-");
1.103     kristaps 1056:
                   1057:        if (n->child)
1.114     kristaps 1058:                p->flags |= TERMP_NOSPACE;
                   1059:        else if (n->next && n->next->line == n->line)
1.103     kristaps 1060:                p->flags |= TERMP_NOSPACE;
                   1061:
1.1       kristaps 1062:        return(1);
                   1063: }
                   1064:
                   1065:
                   1066: /* ARGSUSED */
                   1067: static int
1.184     kristaps 1068: termp__a_pre(DECL_ARGS)
                   1069: {
                   1070:
                   1071:        if (n->prev && MDOC__A == n->prev->tok)
                   1072:                if (NULL == n->next || MDOC__A != n->next->tok)
                   1073:                        term_word(p, "and");
                   1074:
                   1075:        return(1);
                   1076: }
                   1077:
                   1078:
                   1079: /* ARGSUSED */
                   1080: static int
1.61      kristaps 1081: termp_an_pre(DECL_ARGS)
                   1082: {
                   1083:
1.86      kristaps 1084:        if (NULL == n->child)
1.61      kristaps 1085:                return(1);
                   1086:
                   1087:        /*
1.85      kristaps 1088:         * If not in the AUTHORS section, `An -split' will cause
                   1089:         * newlines to occur before the author name.  If in the AUTHORS
                   1090:         * section, by default, the first `An' invocation is nosplit,
                   1091:         * then all subsequent ones, regardless of whether interspersed
                   1092:         * with other macros/text, are split.  -split, in this case,
                   1093:         * will override the condition of the implied first -nosplit.
1.61      kristaps 1094:         */
                   1095:
1.86      kristaps 1096:        if (n->sec == SEC_AUTHORS) {
1.61      kristaps 1097:                if ( ! (TERMP_ANPREC & p->flags)) {
                   1098:                        if (TERMP_SPLIT & p->flags)
                   1099:                                term_newln(p);
                   1100:                        return(1);
                   1101:                }
                   1102:                if (TERMP_NOSPLIT & p->flags)
                   1103:                        return(1);
                   1104:                term_newln(p);
                   1105:                return(1);
                   1106:        }
                   1107:
                   1108:        if (TERMP_SPLIT & p->flags)
                   1109:                term_newln(p);
                   1110:
                   1111:        return(1);
                   1112: }
                   1113:
                   1114:
                   1115: /* ARGSUSED */
                   1116: static void
                   1117: termp_an_post(DECL_ARGS)
                   1118: {
                   1119:
1.86      kristaps 1120:        if (n->child) {
                   1121:                if (SEC_AUTHORS == n->sec)
1.61      kristaps 1122:                        p->flags |= TERMP_ANPREC;
                   1123:                return;
                   1124:        }
                   1125:
1.202     kristaps 1126:        if (AUTH_split == n->norm->An.auth) {
1.61      kristaps 1127:                p->flags &= ~TERMP_NOSPLIT;
                   1128:                p->flags |= TERMP_SPLIT;
1.202     kristaps 1129:        } else if (AUTH_nosplit == n->norm->An.auth) {
1.61      kristaps 1130:                p->flags &= ~TERMP_SPLIT;
                   1131:                p->flags |= TERMP_NOSPLIT;
                   1132:        }
                   1133:
                   1134: }
                   1135:
                   1136:
                   1137: /* ARGSUSED */
                   1138: static int
1.1       kristaps 1139: termp_ns_pre(DECL_ARGS)
                   1140: {
                   1141:
1.215     kristaps 1142:        if ( ! (MDOC_LINE & n->flags))
                   1143:                p->flags |= TERMP_NOSPACE;
1.1       kristaps 1144:        return(1);
                   1145: }
                   1146:
                   1147:
                   1148: /* ARGSUSED */
                   1149: static int
                   1150: termp_rs_pre(DECL_ARGS)
                   1151: {
                   1152:
1.86      kristaps 1153:        if (SEC_SEE_ALSO != n->sec)
1.80      kristaps 1154:                return(1);
1.86      kristaps 1155:        if (MDOC_BLOCK == n->type && n->prev)
1.1       kristaps 1156:                term_vspace(p);
                   1157:        return(1);
                   1158: }
                   1159:
                   1160:
                   1161: /* ARGSUSED */
                   1162: static int
                   1163: termp_rv_pre(DECL_ARGS)
                   1164: {
1.223     kristaps 1165:        int              nchild;
1.1       kristaps 1166:
                   1167:        term_newln(p);
                   1168:        term_word(p, "The");
                   1169:
1.223     kristaps 1170:        nchild = n->nchild;
                   1171:        for (n = n->child; n; n = n->next) {
1.102     kristaps 1172:                term_fontpush(p, TERMFONT_BOLD);
1.223     kristaps 1173:                term_word(p, n->string);
1.102     kristaps 1174:                term_fontpop(p);
1.224     kristaps 1175:
1.68      kristaps 1176:                p->flags |= TERMP_NOSPACE;
1.223     kristaps 1177:                term_word(p, "()");
                   1178:
                   1179:                if (nchild > 2 && n->next) {
                   1180:                        p->flags |= TERMP_NOSPACE;
                   1181:                        term_word(p, ",");
                   1182:                }
                   1183:
                   1184:                if (n->next && NULL == n->next->next)
                   1185:                        term_word(p, "and");
1.68      kristaps 1186:        }
                   1187:
1.223     kristaps 1188:        if (nchild > 1)
1.68      kristaps 1189:                term_word(p, "functions return");
                   1190:        else
                   1191:                term_word(p, "function returns");
1.1       kristaps 1192:
1.68      kristaps 1193:                term_word(p, "the value 0 if successful; otherwise the value "
                   1194:                        "-1 is returned and the global variable");
1.1       kristaps 1195:
1.102     kristaps 1196:        term_fontpush(p, TERMFONT_UNDER);
1.1       kristaps 1197:        term_word(p, "errno");
1.102     kristaps 1198:        term_fontpop(p);
1.1       kristaps 1199:
                   1200:                term_word(p, "is set to indicate the error.");
1.131     kristaps 1201:        p->flags |= TERMP_SENTENCE;
1.1       kristaps 1202:
1.68      kristaps 1203:        return(0);
1.1       kristaps 1204: }
                   1205:
                   1206:
                   1207: /* ARGSUSED */
                   1208: static int
                   1209: termp_ex_pre(DECL_ARGS)
                   1210: {
1.224     kristaps 1211:        int              nchild;
1.1       kristaps 1212:
1.224     kristaps 1213:        term_newln(p);
1.68      kristaps 1214:        term_word(p, "The");
1.1       kristaps 1215:
1.224     kristaps 1216:        nchild = n->nchild;
                   1217:        for (n = n->child; n; n = n->next) {
1.102     kristaps 1218:                term_fontpush(p, TERMFONT_BOLD);
1.224     kristaps 1219:                term_word(p, n->string);
1.102     kristaps 1220:                term_fontpop(p);
1.224     kristaps 1221:
                   1222:                if (nchild > 2 && n->next) {
                   1223:                        p->flags |= TERMP_NOSPACE;
1.68      kristaps 1224:                        term_word(p, ",");
1.224     kristaps 1225:                }
                   1226:
                   1227:                if (n->next && NULL == n->next->next)
                   1228:                        term_word(p, "and");
1.68      kristaps 1229:        }
                   1230:
1.224     kristaps 1231:        if (nchild > 1)
1.68      kristaps 1232:                term_word(p, "utilities exit");
                   1233:        else
                   1234:                term_word(p, "utility exits");
                   1235:
                   1236:                term_word(p, "0 on success, and >0 if an error occurs.");
1.224     kristaps 1237:
1.131     kristaps 1238:        p->flags |= TERMP_SENTENCE;
1.68      kristaps 1239:        return(0);
1.1       kristaps 1240: }
                   1241:
                   1242:
                   1243: /* ARGSUSED */
                   1244: static int
                   1245: termp_nd_pre(DECL_ARGS)
                   1246: {
1.25      kristaps 1247:
1.86      kristaps 1248:        if (MDOC_BODY != n->type)
1.25      kristaps 1249:                return(1);
1.30      kristaps 1250:
1.27      kristaps 1251: #if defined(__OpenBSD__) || defined(__linux__)
1.41      kristaps 1252:        term_word(p, "\\(en");
1.23      kristaps 1253: #else
                   1254:        term_word(p, "\\(em");
                   1255: #endif
1.1       kristaps 1256:        return(1);
1.115     kristaps 1257: }
                   1258:
                   1259:
                   1260: /* ARGSUSED */
                   1261: static int
                   1262: termp_bl_pre(DECL_ARGS)
                   1263: {
                   1264:
                   1265:        return(MDOC_HEAD != n->type);
1.1       kristaps 1266: }
                   1267:
                   1268:
                   1269: /* ARGSUSED */
                   1270: static void
                   1271: termp_bl_post(DECL_ARGS)
                   1272: {
                   1273:
1.86      kristaps 1274:        if (MDOC_BLOCK == n->type)
1.1       kristaps 1275:                term_newln(p);
                   1276: }
                   1277:
                   1278: /* ARGSUSED */
                   1279: static int
                   1280: termp_xr_pre(DECL_ARGS)
                   1281: {
                   1282:
1.225     kristaps 1283:        if (NULL == (n = n->child))
1.113     kristaps 1284:                return(0);
                   1285:
1.225     kristaps 1286:        assert(MDOC_TEXT == n->type);
                   1287:        term_word(p, n->string);
1.11      kristaps 1288:
1.225     kristaps 1289:        if (NULL == (n = n->next))
1.1       kristaps 1290:                return(0);
1.225     kristaps 1291:
1.1       kristaps 1292:        p->flags |= TERMP_NOSPACE;
                   1293:        term_word(p, "(");
1.222     kristaps 1294:        p->flags |= TERMP_NOSPACE;
1.225     kristaps 1295:
                   1296:        assert(MDOC_TEXT == n->type);
                   1297:        term_word(p, n->string);
                   1298:
1.222     kristaps 1299:        p->flags |= TERMP_NOSPACE;
1.1       kristaps 1300:        term_word(p, ")");
1.86      kristaps 1301:
1.1       kristaps 1302:        return(0);
                   1303: }
                   1304:
1.143     kristaps 1305: /*
                   1306:  * This decides how to assert whitespace before any of the SYNOPSIS set
                   1307:  * of macros (which, as in the case of Ft/Fo and Ft/Fn, may contain
                   1308:  * macro combos).
                   1309:  */
                   1310: static void
                   1311: synopsis_pre(struct termp *p, const struct mdoc_node *n)
                   1312: {
                   1313:        /*
                   1314:         * Obviously, if we're not in a SYNOPSIS or no prior macros
                   1315:         * exist, do nothing.
                   1316:         */
1.160     kristaps 1317:        if (NULL == n->prev || ! (MDOC_SYNPRETTY & n->flags))
1.143     kristaps 1318:                return;
                   1319:
                   1320:        /*
                   1321:         * If we're the second in a pair of like elements, emit our
                   1322:         * newline and return.  UNLESS we're `Fo', `Fn', `Fn', in which
                   1323:         * case we soldier on.
                   1324:         */
                   1325:        if (n->prev->tok == n->tok &&
                   1326:                        MDOC_Ft != n->tok &&
                   1327:                        MDOC_Fo != n->tok &&
                   1328:                        MDOC_Fn != n->tok) {
                   1329:                term_newln(p);
                   1330:                return;
                   1331:        }
                   1332:
                   1333:        /*
                   1334:         * If we're one of the SYNOPSIS set and non-like pair-wise after
                   1335:         * another (or Fn/Fo, which we've let slip through) then assert
                   1336:         * vertical space, else only newline and move on.
                   1337:         */
                   1338:        switch (n->prev->tok) {
                   1339:        case (MDOC_Fd):
                   1340:                /* FALLTHROUGH */
                   1341:        case (MDOC_Fn):
                   1342:                /* FALLTHROUGH */
                   1343:        case (MDOC_Fo):
                   1344:                /* FALLTHROUGH */
                   1345:        case (MDOC_In):
                   1346:                /* FALLTHROUGH */
                   1347:        case (MDOC_Vt):
                   1348:                term_vspace(p);
                   1349:                break;
                   1350:        case (MDOC_Ft):
                   1351:                if (MDOC_Fn != n->tok && MDOC_Fo != n->tok) {
                   1352:                        term_vspace(p);
                   1353:                        break;
                   1354:                }
                   1355:                /* FALLTHROUGH */
                   1356:        default:
                   1357:                term_newln(p);
                   1358:                break;
                   1359:        }
                   1360: }
                   1361:
                   1362:
1.110     kristaps 1363: static int
                   1364: termp_vt_pre(DECL_ARGS)
                   1365: {
                   1366:
1.143     kristaps 1367:        if (MDOC_ELEM == n->type) {
                   1368:                synopsis_pre(p, n);
1.110     kristaps 1369:                return(termp_under_pre(p, pair, m, n));
1.143     kristaps 1370:        } else if (MDOC_BLOCK == n->type) {
                   1371:                synopsis_pre(p, n);
                   1372:                return(1);
                   1373:        } else if (MDOC_HEAD == n->type)
1.110     kristaps 1374:                return(0);
                   1375:
                   1376:        return(termp_under_pre(p, pair, m, n));
                   1377: }
                   1378:
                   1379:
1.1       kristaps 1380: /* ARGSUSED */
                   1381: static int
1.69      kristaps 1382: termp_bold_pre(DECL_ARGS)
1.1       kristaps 1383: {
                   1384:
1.102     kristaps 1385:        term_fontpush(p, TERMFONT_BOLD);
1.1       kristaps 1386:        return(1);
                   1387: }
                   1388:
                   1389:
                   1390: /* ARGSUSED */
1.143     kristaps 1391: static int
                   1392: termp_fd_pre(DECL_ARGS)
1.1       kristaps 1393: {
                   1394:
1.143     kristaps 1395:        synopsis_pre(p, n);
                   1396:        return(termp_bold_pre(p, pair, m, n));
1.1       kristaps 1397: }
                   1398:
                   1399:
                   1400: /* ARGSUSED */
                   1401: static int
                   1402: termp_sh_pre(DECL_ARGS)
                   1403: {
1.85      kristaps 1404:
                   1405:        /* No vspace between consecutive `Sh' calls. */
                   1406:
1.86      kristaps 1407:        switch (n->type) {
1.65      kristaps 1408:        case (MDOC_BLOCK):
1.86      kristaps 1409:                if (n->prev && MDOC_Sh == n->prev->tok)
                   1410:                        if (NULL == n->prev->body->child)
1.65      kristaps 1411:                                break;
                   1412:                term_vspace(p);
                   1413:                break;
1.1       kristaps 1414:        case (MDOC_HEAD):
1.102     kristaps 1415:                term_fontpush(p, TERMFONT_BOLD);
1.1       kristaps 1416:                break;
                   1417:        case (MDOC_BODY):
1.157     kristaps 1418:                p->offset = term_len(p, INDENT);
1.1       kristaps 1419:                break;
                   1420:        default:
                   1421:                break;
                   1422:        }
                   1423:        return(1);
                   1424: }
                   1425:
                   1426:
                   1427: /* ARGSUSED */
                   1428: static void
                   1429: termp_sh_post(DECL_ARGS)
                   1430: {
                   1431:
1.86      kristaps 1432:        switch (n->type) {
1.1       kristaps 1433:        case (MDOC_HEAD):
                   1434:                term_newln(p);
                   1435:                break;
                   1436:        case (MDOC_BODY):
                   1437:                term_newln(p);
                   1438:                p->offset = 0;
                   1439:                break;
                   1440:        default:
                   1441:                break;
                   1442:        }
                   1443: }
                   1444:
                   1445:
                   1446: /* ARGSUSED */
                   1447: static int
                   1448: termp_bt_pre(DECL_ARGS)
                   1449: {
                   1450:
                   1451:        term_word(p, "is currently in beta test.");
1.131     kristaps 1452:        p->flags |= TERMP_SENTENCE;
1.81      kristaps 1453:        return(0);
1.1       kristaps 1454: }
                   1455:
                   1456:
                   1457: /* ARGSUSED */
                   1458: static void
                   1459: termp_lb_post(DECL_ARGS)
                   1460: {
                   1461:
1.122     kristaps 1462:        if (SEC_LIBRARY == n->sec && MDOC_LINE & n->flags)
1.81      kristaps 1463:                term_newln(p);
1.1       kristaps 1464: }
                   1465:
                   1466:
                   1467: /* ARGSUSED */
                   1468: static int
                   1469: termp_ud_pre(DECL_ARGS)
                   1470: {
                   1471:
                   1472:        term_word(p, "currently under development.");
1.131     kristaps 1473:        p->flags |= TERMP_SENTENCE;
1.86      kristaps 1474:        return(0);
1.1       kristaps 1475: }
                   1476:
                   1477:
                   1478: /* ARGSUSED */
                   1479: static int
                   1480: termp_d1_pre(DECL_ARGS)
                   1481: {
                   1482:
1.86      kristaps 1483:        if (MDOC_BLOCK != n->type)
1.1       kristaps 1484:                return(1);
                   1485:        term_newln(p);
1.157     kristaps 1486:        p->offset += term_len(p, (INDENT + 1));
1.1       kristaps 1487:        return(1);
                   1488: }
                   1489:
                   1490:
                   1491: /* ARGSUSED */
                   1492: static void
                   1493: termp_d1_post(DECL_ARGS)
                   1494: {
                   1495:
1.86      kristaps 1496:        if (MDOC_BLOCK != n->type)
1.1       kristaps 1497:                return;
                   1498:        term_newln(p);
                   1499: }
                   1500:
                   1501:
                   1502: /* ARGSUSED */
                   1503: static int
                   1504: termp_ft_pre(DECL_ARGS)
                   1505: {
                   1506:
1.141     kristaps 1507:        /* NB: MDOC_LINE does not effect this! */
1.143     kristaps 1508:        synopsis_pre(p, n);
1.102     kristaps 1509:        term_fontpush(p, TERMFONT_UNDER);
1.1       kristaps 1510:        return(1);
                   1511: }
                   1512:
                   1513:
                   1514: /* ARGSUSED */
                   1515: static int
                   1516: termp_fn_pre(DECL_ARGS)
                   1517: {
1.226     kristaps 1518:        int              pretty;
                   1519:
                   1520:        pretty = MDOC_SYNPRETTY & n->flags;
1.1       kristaps 1521:
1.143     kristaps 1522:        synopsis_pre(p, n);
1.139     kristaps 1523:
1.226     kristaps 1524:        if (NULL == (n = n->child))
                   1525:                return(0);
                   1526:
                   1527:        assert(MDOC_TEXT == n->type);
1.102     kristaps 1528:        term_fontpush(p, TERMFONT_BOLD);
1.226     kristaps 1529:        term_word(p, n->string);
1.102     kristaps 1530:        term_fontpop(p);
1.1       kristaps 1531:
                   1532:        p->flags |= TERMP_NOSPACE;
                   1533:        term_word(p, "(");
1.222     kristaps 1534:        p->flags |= TERMP_NOSPACE;
1.1       kristaps 1535:
1.226     kristaps 1536:        for (n = n->next; n; n = n->next) {
                   1537:                assert(MDOC_TEXT == n->type);
1.102     kristaps 1538:                term_fontpush(p, TERMFONT_UNDER);
1.226     kristaps 1539:                term_word(p, n->string);
1.102     kristaps 1540:                term_fontpop(p);
                   1541:
1.226     kristaps 1542:                if (n->next) {
1.222     kristaps 1543:                        p->flags |= TERMP_NOSPACE;
1.1       kristaps 1544:                        term_word(p, ",");
1.222     kristaps 1545:                }
1.1       kristaps 1546:        }
                   1547:
1.222     kristaps 1548:        p->flags |= TERMP_NOSPACE;
1.1       kristaps 1549:        term_word(p, ")");
                   1550:
1.226     kristaps 1551:        if (pretty) {
1.222     kristaps 1552:                p->flags |= TERMP_NOSPACE;
1.1       kristaps 1553:                term_word(p, ";");
1.222     kristaps 1554:        }
1.1       kristaps 1555:
                   1556:        return(0);
                   1557: }
                   1558:
                   1559:
                   1560: /* ARGSUSED */
                   1561: static int
                   1562: termp_fa_pre(DECL_ARGS)
                   1563: {
1.86      kristaps 1564:        const struct mdoc_node  *nn;
1.1       kristaps 1565:
1.86      kristaps 1566:        if (n->parent->tok != MDOC_Fo) {
1.102     kristaps 1567:                term_fontpush(p, TERMFONT_UNDER);
1.1       kristaps 1568:                return(1);
                   1569:        }
                   1570:
1.86      kristaps 1571:        for (nn = n->child; nn; nn = nn->next) {
1.102     kristaps 1572:                term_fontpush(p, TERMFONT_UNDER);
1.86      kristaps 1573:                term_word(p, nn->string);
1.102     kristaps 1574:                term_fontpop(p);
                   1575:
1.222     kristaps 1576:                if (nn->next) {
                   1577:                        p->flags |= TERMP_NOSPACE;
1.1       kristaps 1578:                        term_word(p, ",");
1.222     kristaps 1579:                }
1.1       kristaps 1580:        }
                   1581:
1.222     kristaps 1582:        if (n->child && n->next && n->next->tok == MDOC_Fa) {
                   1583:                p->flags |= TERMP_NOSPACE;
1.1       kristaps 1584:                term_word(p, ",");
1.222     kristaps 1585:        }
1.1       kristaps 1586:
                   1587:        return(0);
                   1588: }
                   1589:
                   1590:
                   1591: /* ARGSUSED */
                   1592: static int
                   1593: termp_bd_pre(DECL_ARGS)
                   1594: {
1.179     kristaps 1595:        size_t                   tabwidth, rm, rmax;
1.85      kristaps 1596:        const struct mdoc_node  *nn;
1.1       kristaps 1597:
1.86      kristaps 1598:        if (MDOC_BLOCK == n->type) {
1.151     kristaps 1599:                print_bvspace(p, n, n);
1.54      kristaps 1600:                return(1);
1.116     kristaps 1601:        } else if (MDOC_HEAD == n->type)
                   1602:                return(0);
1.1       kristaps 1603:
1.202     kristaps 1604:        if (n->norm->Bd.offs)
                   1605:                p->offset += a2offs(p, n->norm->Bd.offs);
1.85      kristaps 1606:
                   1607:        /*
                   1608:         * If -ragged or -filled are specified, the block does nothing
                   1609:         * but change the indentation.  If -unfilled or -literal are
                   1610:         * specified, text is printed exactly as entered in the display:
                   1611:         * for macro lines, a newline is appended to the line.  Blank
                   1612:         * lines are allowed.
                   1613:         */
1.60      kristaps 1614:
1.202     kristaps 1615:        if (DISP_literal != n->norm->Bd.type &&
                   1616:                        DISP_unfilled != n->norm->Bd.type)
1.1       kristaps 1617:                return(1);
                   1618:
1.129     schwarze 1619:        tabwidth = p->tabwidth;
1.208     kristaps 1620:        if (DISP_literal == n->norm->Bd.type)
                   1621:                p->tabwidth = term_len(p, 8);
                   1622:
1.119     kristaps 1623:        rm = p->rmargin;
                   1624:        rmax = p->maxrmargin;
1.120     kristaps 1625:        p->rmargin = p->maxrmargin = TERM_MAXMARGIN;
1.118     kristaps 1626:
1.86      kristaps 1627:        for (nn = n->child; nn; nn = nn->next) {
1.102     kristaps 1628:                print_mdoc_node(p, pair, m, nn);
1.190     kristaps 1629:                /*
                   1630:                 * If the printed node flushes its own line, then we
                   1631:                 * needn't do it here as well.  This is hacky, but the
                   1632:                 * notion of selective eoln whitespace is pretty dumb
                   1633:                 * anyway, so don't sweat it.
                   1634:                 */
                   1635:                switch (nn->tok) {
1.193     kristaps 1636:                case (MDOC_Sm):
                   1637:                        /* FALLTHROUGH */
1.190     kristaps 1638:                case (MDOC_br):
                   1639:                        /* FALLTHROUGH */
                   1640:                case (MDOC_sp):
                   1641:                        /* FALLTHROUGH */
                   1642:                case (MDOC_Bl):
1.196     kristaps 1643:                        /* FALLTHROUGH */
                   1644:                case (MDOC_D1):
                   1645:                        /* FALLTHROUGH */
                   1646:                case (MDOC_Dl):
1.190     kristaps 1647:                        /* FALLTHROUGH */
                   1648:                case (MDOC_Lp):
                   1649:                        /* FALLTHROUGH */
                   1650:                case (MDOC_Pp):
                   1651:                        continue;
                   1652:                default:
                   1653:                        break;
                   1654:                }
1.180     schwarze 1655:                if (nn->next && nn->next->line == nn->line)
                   1656:                        continue;
                   1657:                term_flushln(p);
                   1658:                p->flags |= TERMP_NOSPACE;
1.1       kristaps 1659:        }
1.147     kristaps 1660:
1.129     schwarze 1661:        p->tabwidth = tabwidth;
1.119     kristaps 1662:        p->rmargin = rm;
                   1663:        p->maxrmargin = rmax;
1.1       kristaps 1664:        return(0);
                   1665: }
                   1666:
                   1667:
                   1668: /* ARGSUSED */
                   1669: static void
                   1670: termp_bd_post(DECL_ARGS)
                   1671: {
1.119     kristaps 1672:        size_t           rm, rmax;
1.1       kristaps 1673:
1.86      kristaps 1674:        if (MDOC_BODY != n->type)
1.1       kristaps 1675:                return;
1.118     kristaps 1676:
1.119     kristaps 1677:        rm = p->rmargin;
                   1678:        rmax = p->maxrmargin;
1.118     kristaps 1679:
1.202     kristaps 1680:        if (DISP_literal == n->norm->Bd.type ||
                   1681:                        DISP_unfilled == n->norm->Bd.type)
1.120     kristaps 1682:                p->rmargin = p->maxrmargin = TERM_MAXMARGIN;
1.118     kristaps 1683:
1.60      kristaps 1684:        p->flags |= TERMP_NOSPACE;
1.130     schwarze 1685:        term_newln(p);
1.118     kristaps 1686:
1.119     kristaps 1687:        p->rmargin = rm;
                   1688:        p->maxrmargin = rmax;
1.1       kristaps 1689: }
                   1690:
                   1691:
                   1692: /* ARGSUSED */
1.211     kristaps 1693: static int
                   1694: termp_bx_pre(DECL_ARGS)
1.1       kristaps 1695: {
                   1696:
1.211     kristaps 1697:        if (NULL != (n = n->child)) {
                   1698:                term_word(p, n->string);
                   1699:                p->flags |= TERMP_NOSPACE;
                   1700:                term_word(p, "BSD");
                   1701:        } else {
                   1702:                term_word(p, "BSD");
                   1703:                return(0);
                   1704:        }
                   1705:
                   1706:        if (NULL != (n = n->next)) {
                   1707:                p->flags |= TERMP_NOSPACE;
1.213     kristaps 1708:                term_word(p, "-");
1.1       kristaps 1709:                p->flags |= TERMP_NOSPACE;
1.213     kristaps 1710:                term_word(p, n->string);
1.211     kristaps 1711:        }
                   1712:
                   1713:        return(0);
1.1       kristaps 1714: }
                   1715:
                   1716:
                   1717: /* ARGSUSED */
                   1718: static int
1.26      kristaps 1719: termp_xx_pre(DECL_ARGS)
1.1       kristaps 1720: {
1.26      kristaps 1721:        const char      *pp;
1.218     schwarze 1722:        int              flags;
1.1       kristaps 1723:
1.26      kristaps 1724:        pp = NULL;
1.86      kristaps 1725:        switch (n->tok) {
1.26      kristaps 1726:        case (MDOC_Bsx):
1.194     schwarze 1727:                pp = "BSD/OS";
1.26      kristaps 1728:                break;
                   1729:        case (MDOC_Dx):
1.100     kristaps 1730:                pp = "DragonFly";
1.26      kristaps 1731:                break;
                   1732:        case (MDOC_Fx):
                   1733:                pp = "FreeBSD";
                   1734:                break;
                   1735:        case (MDOC_Nx):
                   1736:                pp = "NetBSD";
                   1737:                break;
                   1738:        case (MDOC_Ox):
                   1739:                pp = "OpenBSD";
                   1740:                break;
                   1741:        case (MDOC_Ux):
                   1742:                pp = "UNIX";
                   1743:                break;
                   1744:        default:
                   1745:                break;
                   1746:        }
1.1       kristaps 1747:
1.26      kristaps 1748:        term_word(p, pp);
1.214     kristaps 1749:        if (n->child) {
1.218     schwarze 1750:                flags = p->flags;
1.214     kristaps 1751:                p->flags |= TERMP_KEEP;
                   1752:                term_word(p, n->child->string);
1.218     schwarze 1753:                p->flags = flags;
1.214     kristaps 1754:        }
                   1755:        return(0);
1.1       kristaps 1756: }
                   1757:
                   1758:
                   1759: /* ARGSUSED */
                   1760: static int
1.192     schwarze 1761: termp_igndelim_pre(DECL_ARGS)
1.1       kristaps 1762: {
                   1763:
                   1764:        p->flags |= TERMP_IGNDELIM;
                   1765:        return(1);
                   1766: }
                   1767:
                   1768:
                   1769: /* ARGSUSED */
                   1770: static void
                   1771: termp_pf_post(DECL_ARGS)
                   1772: {
                   1773:
                   1774:        p->flags |= TERMP_NOSPACE;
                   1775: }
                   1776:
                   1777:
                   1778: /* ARGSUSED */
                   1779: static int
                   1780: termp_ss_pre(DECL_ARGS)
                   1781: {
                   1782:
1.86      kristaps 1783:        switch (n->type) {
1.1       kristaps 1784:        case (MDOC_BLOCK):
                   1785:                term_newln(p);
1.86      kristaps 1786:                if (n->prev)
1.1       kristaps 1787:                        term_vspace(p);
                   1788:                break;
                   1789:        case (MDOC_HEAD):
1.102     kristaps 1790:                term_fontpush(p, TERMFONT_BOLD);
1.157     kristaps 1791:                p->offset = term_len(p, HALFINDENT);
1.1       kristaps 1792:                break;
                   1793:        default:
                   1794:                break;
                   1795:        }
                   1796:
                   1797:        return(1);
                   1798: }
                   1799:
                   1800:
                   1801: /* ARGSUSED */
                   1802: static void
                   1803: termp_ss_post(DECL_ARGS)
                   1804: {
                   1805:
1.86      kristaps 1806:        if (MDOC_HEAD == n->type)
1.1       kristaps 1807:                term_newln(p);
                   1808: }
                   1809:
                   1810:
                   1811: /* ARGSUSED */
                   1812: static int
                   1813: termp_cd_pre(DECL_ARGS)
                   1814: {
                   1815:
1.143     kristaps 1816:        synopsis_pre(p, n);
1.102     kristaps 1817:        term_fontpush(p, TERMFONT_BOLD);
1.1       kristaps 1818:        return(1);
                   1819: }
                   1820:
                   1821:
                   1822: /* ARGSUSED */
                   1823: static int
                   1824: termp_in_pre(DECL_ARGS)
                   1825: {
1.142     schwarze 1826:
1.143     kristaps 1827:        synopsis_pre(p, n);
1.1       kristaps 1828:
1.160     kristaps 1829:        if (MDOC_SYNPRETTY & n->flags && MDOC_LINE & n->flags) {
1.138     kristaps 1830:                term_fontpush(p, TERMFONT_BOLD);
1.22      kristaps 1831:                term_word(p, "#include");
1.138     kristaps 1832:                term_word(p, "<");
                   1833:        } else {
                   1834:                term_word(p, "<");
                   1835:                term_fontpush(p, TERMFONT_UNDER);
                   1836:        }
1.22      kristaps 1837:
1.1       kristaps 1838:        p->flags |= TERMP_NOSPACE;
                   1839:        return(1);
                   1840: }
                   1841:
                   1842:
                   1843: /* ARGSUSED */
                   1844: static void
                   1845: termp_in_post(DECL_ARGS)
                   1846: {
                   1847:
1.160     kristaps 1848:        if (MDOC_SYNPRETTY & n->flags)
1.138     kristaps 1849:                term_fontpush(p, TERMFONT_BOLD);
                   1850:
1.79      kristaps 1851:        p->flags |= TERMP_NOSPACE;
1.1       kristaps 1852:        term_word(p, ">");
                   1853:
1.160     kristaps 1854:        if (MDOC_SYNPRETTY & n->flags)
1.138     kristaps 1855:                term_fontpop(p);
1.1       kristaps 1856: }
                   1857:
                   1858:
                   1859: /* ARGSUSED */
                   1860: static int
1.45      kristaps 1861: termp_sp_pre(DECL_ARGS)
                   1862: {
1.91      kristaps 1863:        size_t           i, len;
1.45      kristaps 1864:
1.86      kristaps 1865:        switch (n->tok) {
1.76      kristaps 1866:        case (MDOC_sp):
1.157     kristaps 1867:                len = n->child ? a2height(p, n->child->string) : 1;
1.76      kristaps 1868:                break;
                   1869:        case (MDOC_br):
                   1870:                len = 0;
                   1871:                break;
                   1872:        default:
                   1873:                len = 1;
                   1874:                break;
1.45      kristaps 1875:        }
                   1876:
                   1877:        if (0 == len)
                   1878:                term_newln(p);
                   1879:        for (i = 0; i < len; i++)
                   1880:                term_vspace(p);
                   1881:
                   1882:        return(0);
                   1883: }
                   1884:
                   1885:
1.189     kristaps 1886: /* ARGSUSED */
1.45      kristaps 1887: static int
1.188     kristaps 1888: termp_quote_pre(DECL_ARGS)
1.1       kristaps 1889: {
                   1890:
1.203     kristaps 1891:        if (MDOC_BODY != n->type && MDOC_ELEM != n->type)
1.1       kristaps 1892:                return(1);
                   1893:
1.188     kristaps 1894:        switch (n->tok) {
                   1895:        case (MDOC_Ao):
                   1896:                /* FALLTHROUGH */
                   1897:        case (MDOC_Aq):
                   1898:                term_word(p, "<");
                   1899:                break;
                   1900:        case (MDOC_Bro):
                   1901:                /* FALLTHROUGH */
                   1902:        case (MDOC_Brq):
                   1903:                term_word(p, "{");
                   1904:                break;
                   1905:        case (MDOC_Oo):
                   1906:                /* FALLTHROUGH */
                   1907:        case (MDOC_Op):
                   1908:                /* FALLTHROUGH */
                   1909:        case (MDOC_Bo):
                   1910:                /* FALLTHROUGH */
                   1911:        case (MDOC_Bq):
                   1912:                term_word(p, "[");
                   1913:                break;
                   1914:        case (MDOC_Do):
                   1915:                /* FALLTHROUGH */
                   1916:        case (MDOC_Dq):
                   1917:                term_word(p, "``");
                   1918:                break;
                   1919:        case (MDOC_Po):
                   1920:                /* FALLTHROUGH */
                   1921:        case (MDOC_Pq):
                   1922:                term_word(p, "(");
                   1923:                break;
1.205     kristaps 1924:        case (MDOC__T):
                   1925:                /* FALLTHROUGH */
1.188     kristaps 1926:        case (MDOC_Qo):
                   1927:                /* FALLTHROUGH */
                   1928:        case (MDOC_Qq):
                   1929:                term_word(p, "\"");
                   1930:                break;
                   1931:        case (MDOC_Ql):
                   1932:                /* FALLTHROUGH */
                   1933:        case (MDOC_So):
                   1934:                /* FALLTHROUGH */
                   1935:        case (MDOC_Sq):
                   1936:                term_word(p, "`");
                   1937:                break;
                   1938:        default:
                   1939:                abort();
                   1940:                /* NOTREACHED */
                   1941:        }
1.1       kristaps 1942:
                   1943:        p->flags |= TERMP_NOSPACE;
                   1944:        return(1);
                   1945: }
                   1946:
                   1947:
1.189     kristaps 1948: /* ARGSUSED */
1.1       kristaps 1949: static void
1.188     kristaps 1950: termp_quote_post(DECL_ARGS)
1.1       kristaps 1951: {
                   1952:
1.203     kristaps 1953:        if (MDOC_BODY != n->type && MDOC_ELEM != n->type)
1.1       kristaps 1954:                return;
                   1955:
                   1956:        p->flags |= TERMP_NOSPACE;
                   1957:
1.188     kristaps 1958:        switch (n->tok) {
                   1959:        case (MDOC_Ao):
                   1960:                /* FALLTHROUGH */
                   1961:        case (MDOC_Aq):
                   1962:                term_word(p, ">");
                   1963:                break;
                   1964:        case (MDOC_Bro):
                   1965:                /* FALLTHROUGH */
                   1966:        case (MDOC_Brq):
                   1967:                term_word(p, "}");
                   1968:                break;
                   1969:        case (MDOC_Oo):
                   1970:                /* FALLTHROUGH */
                   1971:        case (MDOC_Op):
                   1972:                /* FALLTHROUGH */
                   1973:        case (MDOC_Bo):
                   1974:                /* FALLTHROUGH */
                   1975:        case (MDOC_Bq):
                   1976:                term_word(p, "]");
                   1977:                break;
                   1978:        case (MDOC_Do):
                   1979:                /* FALLTHROUGH */
                   1980:        case (MDOC_Dq):
                   1981:                term_word(p, "''");
                   1982:                break;
                   1983:        case (MDOC_Po):
                   1984:                /* FALLTHROUGH */
                   1985:        case (MDOC_Pq):
                   1986:                term_word(p, ")");
                   1987:                break;
1.205     kristaps 1988:        case (MDOC__T):
                   1989:                /* FALLTHROUGH */
1.188     kristaps 1990:        case (MDOC_Qo):
                   1991:                /* FALLTHROUGH */
                   1992:        case (MDOC_Qq):
                   1993:                term_word(p, "\"");
                   1994:                break;
                   1995:        case (MDOC_Ql):
                   1996:                /* FALLTHROUGH */
                   1997:        case (MDOC_So):
                   1998:                /* FALLTHROUGH */
                   1999:        case (MDOC_Sq):
                   2000:                term_word(p, "'");
                   2001:                break;
                   2002:        default:
                   2003:                abort();
                   2004:                /* NOTREACHED */
                   2005:        }
1.1       kristaps 2006: }
                   2007:
                   2008:
                   2009: /* ARGSUSED */
                   2010: static int
                   2011: termp_fo_pre(DECL_ARGS)
                   2012: {
                   2013:
1.141     kristaps 2014:        if (MDOC_BLOCK == n->type) {
1.143     kristaps 2015:                synopsis_pre(p, n);
1.141     kristaps 2016:                return(1);
                   2017:        } else if (MDOC_BODY == n->type) {
1.33      kristaps 2018:                p->flags |= TERMP_NOSPACE;
1.1       kristaps 2019:                term_word(p, "(");
1.222     kristaps 2020:                p->flags |= TERMP_NOSPACE;
1.1       kristaps 2021:                return(1);
1.141     kristaps 2022:        }
                   2023:
1.169     kristaps 2024:        if (NULL == n->child)
                   2025:                return(0);
                   2026:
1.141     kristaps 2027:        /* XXX: we drop non-initial arguments as per groff. */
1.1       kristaps 2028:
1.141     kristaps 2029:        assert(n->child->string);
1.102     kristaps 2030:        term_fontpush(p, TERMFONT_BOLD);
1.141     kristaps 2031:        term_word(p, n->child->string);
1.1       kristaps 2032:        return(0);
                   2033: }
                   2034:
                   2035:
                   2036: /* ARGSUSED */
                   2037: static void
                   2038: termp_fo_post(DECL_ARGS)
                   2039: {
                   2040:
1.143     kristaps 2041:        if (MDOC_BODY != n->type)
                   2042:                return;
                   2043:
1.222     kristaps 2044:        p->flags |= TERMP_NOSPACE;
1.143     kristaps 2045:        term_word(p, ")");
                   2046:
1.222     kristaps 2047:        if (MDOC_SYNPRETTY & n->flags) {
                   2048:                p->flags |= TERMP_NOSPACE;
1.143     kristaps 2049:                term_word(p, ";");
1.222     kristaps 2050:        }
1.1       kristaps 2051: }
                   2052:
                   2053:
                   2054: /* ARGSUSED */
                   2055: static int
                   2056: termp_bf_pre(DECL_ARGS)
                   2057: {
                   2058:
1.86      kristaps 2059:        if (MDOC_HEAD == n->type)
1.1       kristaps 2060:                return(0);
1.86      kristaps 2061:        else if (MDOC_BLOCK != n->type)
1.1       kristaps 2062:                return(1);
                   2063:
1.202     kristaps 2064:        if (FONT_Em == n->norm->Bf.font)
1.102     kristaps 2065:                term_fontpush(p, TERMFONT_UNDER);
1.202     kristaps 2066:        else if (FONT_Sy == n->norm->Bf.font)
1.102     kristaps 2067:                term_fontpush(p, TERMFONT_BOLD);
1.167     kristaps 2068:        else
1.102     kristaps 2069:                term_fontpush(p, TERMFONT_NONE);
1.1       kristaps 2070:
                   2071:        return(1);
                   2072: }
                   2073:
                   2074:
                   2075: /* ARGSUSED */
                   2076: static int
                   2077: termp_sm_pre(DECL_ARGS)
                   2078: {
                   2079:
1.86      kristaps 2080:        assert(n->child && MDOC_TEXT == n->child->type);
1.174     schwarze 2081:        if (0 == strcmp("on", n->child->string)) {
                   2082:                if (p->col)
                   2083:                        p->flags &= ~TERMP_NOSPACE;
1.1       kristaps 2084:                p->flags &= ~TERMP_NONOSPACE;
1.174     schwarze 2085:        } else
1.1       kristaps 2086:                p->flags |= TERMP_NONOSPACE;
                   2087:
                   2088:        return(0);
                   2089: }
                   2090:
                   2091:
                   2092: /* ARGSUSED */
                   2093: static int
                   2094: termp_ap_pre(DECL_ARGS)
                   2095: {
                   2096:
                   2097:        p->flags |= TERMP_NOSPACE;
1.188     kristaps 2098:        term_word(p, "'");
1.1       kristaps 2099:        p->flags |= TERMP_NOSPACE;
                   2100:        return(1);
                   2101: }
                   2102:
                   2103:
                   2104: /* ARGSUSED */
                   2105: static void
                   2106: termp____post(DECL_ARGS)
                   2107: {
1.184     kristaps 2108:
                   2109:        /*
                   2110:         * Handle lists of authors.  In general, print each followed by
                   2111:         * a comma.  Don't print the comma if there are only two
                   2112:         * authors.
                   2113:         */
                   2114:        if (MDOC__A == n->tok && n->next && MDOC__A == n->next->tok)
                   2115:                if (NULL == n->next->next || MDOC__A != n->next->next->tok)
                   2116:                        if (NULL == n->prev || MDOC__A != n->prev->tok)
                   2117:                                return;
1.1       kristaps 2118:
1.95      kristaps 2119:        /* TODO: %U. */
                   2120:
1.187     kristaps 2121:        if (NULL == n->parent || MDOC_Rs != n->parent->tok)
                   2122:                return;
                   2123:
1.222     kristaps 2124:        p->flags |= TERMP_NOSPACE;
1.186     kristaps 2125:        if (NULL == n->next) {
                   2126:                term_word(p, ".");
                   2127:                p->flags |= TERMP_SENTENCE;
                   2128:        } else
                   2129:                term_word(p, ",");
1.1       kristaps 2130: }
                   2131:
                   2132:
                   2133: /* ARGSUSED */
                   2134: static int
1.102     kristaps 2135: termp_li_pre(DECL_ARGS)
                   2136: {
                   2137:
                   2138:        term_fontpush(p, TERMFONT_NONE);
                   2139:        return(1);
                   2140: }
                   2141:
                   2142:
                   2143: /* ARGSUSED */
                   2144: static int
1.1       kristaps 2145: termp_lk_pre(DECL_ARGS)
                   2146: {
1.181     kristaps 2147:        const struct mdoc_node *nn, *sv;
1.1       kristaps 2148:
1.102     kristaps 2149:        term_fontpush(p, TERMFONT_UNDER);
1.181     kristaps 2150:
                   2151:        nn = sv = n->child;
1.96      kristaps 2152:
1.195     kristaps 2153:        if (NULL == nn || NULL == nn->next)
1.12      kristaps 2154:                return(1);
                   2155:
1.181     kristaps 2156:        for (nn = nn->next; nn; nn = nn->next)
                   2157:                term_word(p, nn->string);
                   2158:
1.102     kristaps 2159:        term_fontpop(p);
1.96      kristaps 2160:
1.222     kristaps 2161:        p->flags |= TERMP_NOSPACE;
1.1       kristaps 2162:        term_word(p, ":");
                   2163:
1.102     kristaps 2164:        term_fontpush(p, TERMFONT_BOLD);
1.181     kristaps 2165:        term_word(p, sv->string);
1.102     kristaps 2166:        term_fontpop(p);
1.12      kristaps 2167:
1.1       kristaps 2168:        return(0);
                   2169: }
                   2170:
1.159     schwarze 2171:
                   2172: /* ARGSUSED */
                   2173: static int
                   2174: termp_bk_pre(DECL_ARGS)
                   2175: {
                   2176:
1.161     schwarze 2177:        switch (n->type) {
                   2178:        case (MDOC_BLOCK):
1.166     kristaps 2179:                break;
1.161     schwarze 2180:        case (MDOC_HEAD):
                   2181:                return(0);
                   2182:        case (MDOC_BODY):
1.200     schwarze 2183:                if (n->parent->args || 0 == n->prev->nchild)
                   2184:                        p->flags |= TERMP_PREKEEP;
1.166     kristaps 2185:                break;
1.161     schwarze 2186:        default:
                   2187:                abort();
1.166     kristaps 2188:                /* NOTREACHED */
1.161     schwarze 2189:        }
1.166     kristaps 2190:
                   2191:        return(1);
1.159     schwarze 2192: }
                   2193:
                   2194:
                   2195: /* ARGSUSED */
                   2196: static void
                   2197: termp_bk_post(DECL_ARGS)
                   2198: {
                   2199:
1.161     schwarze 2200:        if (MDOC_BODY == n->type)
                   2201:                p->flags &= ~(TERMP_KEEP | TERMP_PREKEEP);
1.203     kristaps 2202: }
                   2203:
                   2204: /* ARGSUSED */
                   2205: static void
                   2206: termp__t_post(DECL_ARGS)
                   2207: {
                   2208:
                   2209:        /*
                   2210:         * If we're in an `Rs' and there's a journal present, then quote
                   2211:         * us instead of underlining us (for disambiguation).
                   2212:         */
1.217     schwarze 2213:        if (n->parent && MDOC_Rs == n->parent->tok &&
1.210     kristaps 2214:                        n->parent->norm->Rs.quote_T)
1.203     kristaps 2215:                termp_quote_post(p, pair, m, n);
                   2216:
                   2217:        termp____post(p, pair, m, n);
                   2218: }
                   2219:
                   2220: /* ARGSUSED */
                   2221: static int
                   2222: termp__t_pre(DECL_ARGS)
                   2223: {
                   2224:
                   2225:        /*
                   2226:         * If we're in an `Rs' and there's a journal present, then quote
                   2227:         * us instead of underlining us (for disambiguation).
                   2228:         */
                   2229:        if (n->parent && MDOC_Rs == n->parent->tok &&
1.210     kristaps 2230:                        n->parent->norm->Rs.quote_T)
1.203     kristaps 2231:                return(termp_quote_pre(p, pair, m, n));
                   2232:
                   2233:        term_fontpush(p, TERMFONT_UNDER);
                   2234:        return(1);
1.159     schwarze 2235: }
1.1       kristaps 2236:
                   2237: /* ARGSUSED */
                   2238: static int
1.69      kristaps 2239: termp_under_pre(DECL_ARGS)
1.1       kristaps 2240: {
                   2241:
1.102     kristaps 2242:        term_fontpush(p, TERMFONT_UNDER);
1.84      kristaps 2243:        return(1);
                   2244: }

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