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Annotation of mandoc/mdoc_term.c, Revision 1.204

1.204   ! kristaps    1: /*     $Id: mdoc_term.c,v 1.203 2010/12/25 13:50:37 kristaps Exp $ */
1.1       kristaps    2: /*
1.171     schwarze    3:  * Copyright (c) 2008, 2009, 2010 Kristaps Dzonsons <kristaps@bsd.lv>
                      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 "chars.h"
                     36: #include "main.h"
1.1       kristaps   37:
1.66      kristaps   38: #define        INDENT            5
                     39: #define        HALFINDENT        3
                     40:
1.1       kristaps   41: struct termpair {
                     42:        struct termpair  *ppair;
1.31      kristaps   43:        int               count;
1.1       kristaps   44: };
                     45:
1.31      kristaps   46: #define        DECL_ARGS struct termp *p, \
                     47:                  struct termpair *pair, \
1.86      kristaps   48:                  const struct mdoc_meta *m, \
                     49:                  const struct mdoc_node *n
1.1       kristaps   50:
                     51: struct termact {
                     52:        int     (*pre)(DECL_ARGS);
                     53:        void    (*post)(DECL_ARGS);
                     54: };
                     55:
1.157     kristaps   56: static size_t    a2width(const struct termp *, const char *);
                     57: static size_t    a2height(const struct termp *, const char *);
                     58: static size_t    a2offs(const struct termp *, const char *);
1.96      kristaps   59:
                     60: static void      print_bvspace(struct termp *,
1.151     kristaps   61:                        const struct mdoc_node *,
1.96      kristaps   62:                        const struct mdoc_node *);
1.102     kristaps   63: static void      print_mdoc_node(DECL_ARGS);
1.145     kristaps   64: static void      print_mdoc_nodelist(DECL_ARGS);
1.144     kristaps   65: static void      print_mdoc_head(struct termp *, const void *);
1.145     kristaps   66: static void      print_mdoc_foot(struct termp *, const void *);
1.143     kristaps   67: static void      synopsis_pre(struct termp *,
                     68:                        const struct mdoc_node *);
1.96      kristaps   69:
1.31      kristaps   70: static void      termp____post(DECL_ARGS);
1.203     kristaps   71: static void      termp__t_post(DECL_ARGS);
1.61      kristaps   72: static void      termp_an_post(DECL_ARGS);
1.31      kristaps   73: static void      termp_bd_post(DECL_ARGS);
1.159     schwarze   74: static void      termp_bk_post(DECL_ARGS);
1.31      kristaps   75: static void      termp_bl_post(DECL_ARGS);
                     76: static void      termp_bx_post(DECL_ARGS);
                     77: static void      termp_d1_post(DECL_ARGS);
                     78: static void      termp_fo_post(DECL_ARGS);
                     79: static void      termp_in_post(DECL_ARGS);
                     80: static void      termp_it_post(DECL_ARGS);
                     81: static void      termp_lb_post(DECL_ARGS);
1.164     schwarze   82: static void      termp_nm_post(DECL_ARGS);
1.31      kristaps   83: static void      termp_pf_post(DECL_ARGS);
1.188     kristaps   84: static void      termp_quote_post(DECL_ARGS);
1.31      kristaps   85: static void      termp_sh_post(DECL_ARGS);
                     86: static void      termp_ss_post(DECL_ARGS);
                     87:
1.184     kristaps   88: static int       termp__a_pre(DECL_ARGS);
1.203     kristaps   89: static int       termp__t_pre(DECL_ARGS);
1.61      kristaps   90: static int       termp_an_pre(DECL_ARGS);
1.31      kristaps   91: static int       termp_ap_pre(DECL_ARGS);
                     92: static int       termp_bd_pre(DECL_ARGS);
                     93: static int       termp_bf_pre(DECL_ARGS);
1.159     schwarze   94: static int       termp_bk_pre(DECL_ARGS);
1.115     kristaps   95: static int       termp_bl_pre(DECL_ARGS);
1.69      kristaps   96: static int       termp_bold_pre(DECL_ARGS);
1.31      kristaps   97: static int       termp_bt_pre(DECL_ARGS);
                     98: static int       termp_cd_pre(DECL_ARGS);
                     99: static int       termp_d1_pre(DECL_ARGS);
                    100: static int       termp_ex_pre(DECL_ARGS);
                    101: static int       termp_fa_pre(DECL_ARGS);
1.188     kristaps  102: static int       termp_fd_pre(DECL_ARGS);
1.31      kristaps  103: static int       termp_fl_pre(DECL_ARGS);
                    104: static int       termp_fn_pre(DECL_ARGS);
                    105: static int       termp_fo_pre(DECL_ARGS);
                    106: static int       termp_ft_pre(DECL_ARGS);
1.192     schwarze  107: static int       termp_igndelim_pre(DECL_ARGS);
1.31      kristaps  108: static int       termp_in_pre(DECL_ARGS);
                    109: static int       termp_it_pre(DECL_ARGS);
1.102     kristaps  110: static int       termp_li_pre(DECL_ARGS);
1.31      kristaps  111: static int       termp_lk_pre(DECL_ARGS);
                    112: static int       termp_nd_pre(DECL_ARGS);
                    113: static int       termp_nm_pre(DECL_ARGS);
                    114: static int       termp_ns_pre(DECL_ARGS);
1.188     kristaps  115: static int       termp_quote_pre(DECL_ARGS);
1.31      kristaps  116: static int       termp_rs_pre(DECL_ARGS);
                    117: static int       termp_rv_pre(DECL_ARGS);
                    118: static int       termp_sh_pre(DECL_ARGS);
                    119: static int       termp_sm_pre(DECL_ARGS);
1.45      kristaps  120: static int       termp_sp_pre(DECL_ARGS);
1.31      kristaps  121: static int       termp_ss_pre(DECL_ARGS);
1.69      kristaps  122: static int       termp_under_pre(DECL_ARGS);
1.31      kristaps  123: static int       termp_ud_pre(DECL_ARGS);
1.110     kristaps  124: static int       termp_vt_pre(DECL_ARGS);
1.31      kristaps  125: static int       termp_xr_pre(DECL_ARGS);
                    126: static int       termp_xx_pre(DECL_ARGS);
                    127:
1.70      kristaps  128: static const struct termact termacts[MDOC_MAX] = {
1.14      kristaps  129:        { termp_ap_pre, NULL }, /* Ap */
1.1       kristaps  130:        { NULL, NULL }, /* Dd */
                    131:        { NULL, NULL }, /* Dt */
                    132:        { NULL, NULL }, /* Os */
                    133:        { termp_sh_pre, termp_sh_post }, /* Sh */
                    134:        { termp_ss_pre, termp_ss_post }, /* Ss */
1.76      kristaps  135:        { termp_sp_pre, NULL }, /* Pp */
1.1       kristaps  136:        { termp_d1_pre, termp_d1_post }, /* D1 */
                    137:        { termp_d1_pre, termp_d1_post }, /* Dl */
                    138:        { termp_bd_pre, termp_bd_post }, /* Bd */
                    139:        { NULL, NULL }, /* Ed */
1.115     kristaps  140:        { termp_bl_pre, termp_bl_post }, /* Bl */
1.1       kristaps  141:        { NULL, NULL }, /* El */
                    142:        { termp_it_pre, termp_it_post }, /* It */
1.178     kristaps  143:        { termp_under_pre, NULL }, /* Ad */
1.61      kristaps  144:        { termp_an_pre, termp_an_post }, /* An */
1.69      kristaps  145:        { termp_under_pre, NULL }, /* Ar */
1.1       kristaps  146:        { termp_cd_pre, NULL }, /* Cd */
1.69      kristaps  147:        { termp_bold_pre, NULL }, /* Cm */
1.1       kristaps  148:        { NULL, NULL }, /* Dv */
                    149:        { NULL, NULL }, /* Er */
                    150:        { NULL, NULL }, /* Ev */
                    151:        { termp_ex_pre, NULL }, /* Ex */
                    152:        { termp_fa_pre, NULL }, /* Fa */
1.143     kristaps  153:        { termp_fd_pre, NULL }, /* Fd */
1.1       kristaps  154:        { termp_fl_pre, NULL }, /* Fl */
1.143     kristaps  155:        { termp_fn_pre, NULL }, /* Fn */
1.141     kristaps  156:        { termp_ft_pre, NULL }, /* Ft */
1.69      kristaps  157:        { termp_bold_pre, NULL }, /* Ic */
1.1       kristaps  158:        { termp_in_pre, termp_in_post }, /* In */
1.102     kristaps  159:        { termp_li_pre, NULL }, /* Li */
1.1       kristaps  160:        { termp_nd_pre, NULL }, /* Nd */
1.164     schwarze  161:        { termp_nm_pre, termp_nm_post }, /* Nm */
1.188     kristaps  162:        { termp_quote_pre, termp_quote_post }, /* Op */
1.1       kristaps  163:        { NULL, NULL }, /* Ot */
1.69      kristaps  164:        { termp_under_pre, NULL }, /* Pa */
1.1       kristaps  165:        { termp_rv_pre, NULL }, /* Rv */
1.36      kristaps  166:        { NULL, NULL }, /* St */
1.69      kristaps  167:        { termp_under_pre, NULL }, /* Va */
1.143     kristaps  168:        { termp_vt_pre, NULL }, /* Vt */
1.1       kristaps  169:        { termp_xr_pre, NULL }, /* Xr */
1.184     kristaps  170:        { termp__a_pre, termp____post }, /* %A */
1.84      kristaps  171:        { termp_under_pre, termp____post }, /* %B */
1.1       kristaps  172:        { NULL, termp____post }, /* %D */
1.84      kristaps  173:        { termp_under_pre, termp____post }, /* %I */
1.69      kristaps  174:        { termp_under_pre, termp____post }, /* %J */
1.1       kristaps  175:        { NULL, termp____post }, /* %N */
                    176:        { NULL, termp____post }, /* %O */
                    177:        { NULL, termp____post }, /* %P */
                    178:        { NULL, termp____post }, /* %R */
1.203     kristaps  179:        { termp__t_pre, termp__t_post }, /* %T */
1.1       kristaps  180:        { NULL, termp____post }, /* %V */
                    181:        { NULL, NULL }, /* Ac */
1.188     kristaps  182:        { termp_quote_pre, termp_quote_post }, /* Ao */
                    183:        { termp_quote_pre, termp_quote_post }, /* Aq */
1.35      kristaps  184:        { NULL, NULL }, /* At */
1.1       kristaps  185:        { NULL, NULL }, /* Bc */
                    186:        { termp_bf_pre, NULL }, /* Bf */
1.188     kristaps  187:        { termp_quote_pre, termp_quote_post }, /* Bo */
                    188:        { termp_quote_pre, termp_quote_post }, /* Bq */
1.26      kristaps  189:        { termp_xx_pre, NULL }, /* Bsx */
1.1       kristaps  190:        { NULL, termp_bx_post }, /* Bx */
                    191:        { NULL, NULL }, /* Db */
                    192:        { NULL, NULL }, /* Dc */
1.188     kristaps  193:        { termp_quote_pre, termp_quote_post }, /* Do */
                    194:        { termp_quote_pre, termp_quote_post }, /* Dq */
1.112     kristaps  195:        { NULL, NULL }, /* Ec */ /* FIXME: no space */
1.1       kristaps  196:        { NULL, NULL }, /* Ef */
1.69      kristaps  197:        { termp_under_pre, NULL }, /* Em */
1.1       kristaps  198:        { NULL, NULL }, /* Eo */
1.26      kristaps  199:        { termp_xx_pre, NULL }, /* Fx */
1.176     kristaps  200:        { termp_bold_pre, NULL }, /* Ms */
1.192     schwarze  201:        { termp_igndelim_pre, NULL }, /* No */
1.1       kristaps  202:        { termp_ns_pre, NULL }, /* Ns */
1.26      kristaps  203:        { termp_xx_pre, NULL }, /* Nx */
                    204:        { termp_xx_pre, NULL }, /* Ox */
1.1       kristaps  205:        { NULL, NULL }, /* Pc */
1.192     schwarze  206:        { termp_igndelim_pre, termp_pf_post }, /* Pf */
1.188     kristaps  207:        { termp_quote_pre, termp_quote_post }, /* Po */
                    208:        { termp_quote_pre, termp_quote_post }, /* Pq */
1.1       kristaps  209:        { NULL, NULL }, /* Qc */
1.188     kristaps  210:        { termp_quote_pre, termp_quote_post }, /* Ql */
                    211:        { termp_quote_pre, termp_quote_post }, /* Qo */
                    212:        { termp_quote_pre, termp_quote_post }, /* Qq */
1.1       kristaps  213:        { NULL, NULL }, /* Re */
                    214:        { termp_rs_pre, NULL }, /* Rs */
                    215:        { NULL, NULL }, /* Sc */
1.188     kristaps  216:        { termp_quote_pre, termp_quote_post }, /* So */
                    217:        { termp_quote_pre, termp_quote_post }, /* Sq */
1.1       kristaps  218:        { termp_sm_pre, NULL }, /* Sm */
1.69      kristaps  219:        { termp_under_pre, NULL }, /* Sx */
                    220:        { termp_bold_pre, NULL }, /* Sy */
1.1       kristaps  221:        { NULL, NULL }, /* Tn */
1.26      kristaps  222:        { termp_xx_pre, NULL }, /* Ux */
1.1       kristaps  223:        { NULL, NULL }, /* Xc */
                    224:        { NULL, NULL }, /* Xo */
                    225:        { termp_fo_pre, termp_fo_post }, /* Fo */
                    226:        { NULL, NULL }, /* Fc */
1.188     kristaps  227:        { termp_quote_pre, termp_quote_post }, /* Oo */
1.1       kristaps  228:        { NULL, NULL }, /* Oc */
1.159     schwarze  229:        { termp_bk_pre, termp_bk_post }, /* Bk */
1.1       kristaps  230:        { NULL, NULL }, /* Ek */
                    231:        { termp_bt_pre, NULL }, /* Bt */
                    232:        { NULL, NULL }, /* Hf */
                    233:        { NULL, NULL }, /* Fr */
                    234:        { termp_ud_pre, NULL }, /* Ud */
1.37      kristaps  235:        { NULL, termp_lb_post }, /* Lb */
1.76      kristaps  236:        { termp_sp_pre, NULL }, /* Lp */
1.1       kristaps  237:        { termp_lk_pre, NULL }, /* Lk */
1.69      kristaps  238:        { termp_under_pre, NULL }, /* Mt */
1.188     kristaps  239:        { termp_quote_pre, termp_quote_post }, /* Brq */
                    240:        { termp_quote_pre, termp_quote_post }, /* Bro */
1.1       kristaps  241:        { NULL, NULL }, /* Brc */
1.83      kristaps  242:        { NULL, termp____post }, /* %C */
1.81      kristaps  243:        { NULL, NULL }, /* Es */ /* TODO */
                    244:        { NULL, NULL }, /* En */ /* TODO */
1.26      kristaps  245:        { termp_xx_pre, NULL }, /* Dx */
1.83      kristaps  246:        { NULL, termp____post }, /* %Q */
1.76      kristaps  247:        { termp_sp_pre, NULL }, /* br */
1.45      kristaps  248:        { termp_sp_pre, NULL }, /* sp */
1.96      kristaps  249:        { termp_under_pre, termp____post }, /* %U */
1.135     kristaps  250:        { NULL, NULL }, /* Ta */
1.1       kristaps  251: };
                    252:
                    253:
1.70      kristaps  254: void
1.89      kristaps  255: terminal_mdoc(void *arg, const struct mdoc *mdoc)
1.1       kristaps  256: {
1.70      kristaps  257:        const struct mdoc_node  *n;
                    258:        const struct mdoc_meta  *m;
1.89      kristaps  259:        struct termp            *p;
                    260:
                    261:        p = (struct termp *)arg;
1.111     kristaps  262:
                    263:        p->overstep = 0;
1.123     joerg     264:        p->maxrmargin = p->defrmargin;
1.157     kristaps  265:        p->tabwidth = term_len(p, 5);
1.89      kristaps  266:
                    267:        if (NULL == p->symtab)
                    268:                switch (p->enc) {
                    269:                case (TERMENC_ASCII):
                    270:                        p->symtab = chars_init(CHARS_ASCII);
                    271:                        break;
                    272:                default:
                    273:                        abort();
                    274:                        /* NOTREACHED */
                    275:                }
1.70      kristaps  276:
                    277:        n = mdoc_node(mdoc);
                    278:        m = mdoc_meta(mdoc);
1.146     schwarze  279:
                    280:        term_begin(p, print_mdoc_head, print_mdoc_foot, m);
1.70      kristaps  281:
                    282:        if (n->child)
1.102     kristaps  283:                print_mdoc_nodelist(p, NULL, m, n->child);
1.144     kristaps  284:
                    285:        term_end(p);
1.1       kristaps  286: }
                    287:
                    288:
1.3       kristaps  289: static void
1.102     kristaps  290: print_mdoc_nodelist(DECL_ARGS)
1.1       kristaps  291: {
                    292:
1.102     kristaps  293:        print_mdoc_node(p, pair, m, n);
1.86      kristaps  294:        if (n->next)
1.102     kristaps  295:                print_mdoc_nodelist(p, pair, m, n->next);
1.1       kristaps  296: }
                    297:
                    298:
1.70      kristaps  299: /* ARGSUSED */
1.3       kristaps  300: static void
1.102     kristaps  301: print_mdoc_node(DECL_ARGS)
1.1       kristaps  302: {
1.102     kristaps  303:        int              chld;
                    304:        const void      *font;
1.1       kristaps  305:        struct termpair  npair;
1.30      kristaps  306:        size_t           offset, rmargin;
1.1       kristaps  307:
1.70      kristaps  308:        chld = 1;
1.29      kristaps  309:        offset = p->offset;
1.30      kristaps  310:        rmargin = p->rmargin;
1.102     kristaps  311:        font = term_fontq(p);
1.29      kristaps  312:
1.97      kristaps  313:        memset(&npair, 0, sizeof(struct termpair));
1.1       kristaps  314:        npair.ppair = pair;
1.46      kristaps  315:
1.162     schwarze  316:        if (MDOC_TEXT == n->type)
1.86      kristaps  317:                term_word(p, n->string);
1.163     kristaps  318:        else if (termacts[n->tok].pre && ENDBODY_NOT == n->end)
1.162     schwarze  319:                chld = (*termacts[n->tok].pre)(p, &npair, m, n);
1.172     kristaps  320:
                    321:        /*
                    322:         * Keeps only work until the end of a line.  If a keep was
                    323:         * invoked in a prior line, revert it to PREKEEP.
1.197     schwarze  324:         *
                    325:         * Also let SYNPRETTY sections behave as if they were wrapped
                    326:         * in a `Bk' block.
1.172     kristaps  327:         */
                    328:
1.197     schwarze  329:        if (TERMP_KEEP & p->flags || MDOC_SYNPRETTY & n->flags) {
1.172     kristaps  330:                if (n->prev && n->prev->line != n->line) {
                    331:                        p->flags &= ~TERMP_KEEP;
                    332:                        p->flags |= TERMP_PREKEEP;
                    333:                } else if (NULL == n->prev) {
                    334:                        if (n->parent && n->parent->line != n->line) {
                    335:                                p->flags &= ~TERMP_KEEP;
                    336:                                p->flags |= TERMP_PREKEEP;
                    337:                        }
                    338:                }
                    339:        }
1.197     schwarze  340:
                    341:        /*
                    342:         * Since SYNPRETTY sections aren't "turned off" with `Ek',
                    343:         * we have to intuit whether we should disable formatting.
                    344:         */
                    345:
                    346:        if ( ! (MDOC_SYNPRETTY & n->flags) &&
                    347:            ((n->prev   && MDOC_SYNPRETTY & n->prev->flags) ||
                    348:             (n->parent && MDOC_SYNPRETTY & n->parent->flags)))
                    349:                p->flags &= ~(TERMP_KEEP | TERMP_PREKEEP);
1.102     kristaps  350:
1.86      kristaps  351:        if (chld && n->child)
1.102     kristaps  352:                print_mdoc_nodelist(p, &npair, m, n->child);
1.1       kristaps  353:
1.102     kristaps  354:        term_fontpopq(p, font);
1.46      kristaps  355:
1.165     kristaps  356:        if (MDOC_TEXT != n->type && termacts[n->tok].post &&
                    357:                        ! (MDOC_ENDED & n->flags)) {
                    358:                (void)(*termacts[n->tok].post)(p, &npair, m, n);
1.162     schwarze  359:
                    360:                /*
                    361:                 * Explicit end tokens not only call the post
                    362:                 * handler, but also tell the respective block
                    363:                 * that it must not call the post handler again.
                    364:                 */
1.165     kristaps  365:                if (ENDBODY_NOT != n->end)
1.162     schwarze  366:                        n->pending->flags |= MDOC_ENDED;
                    367:
                    368:                /*
                    369:                 * End of line terminating an implicit block
                    370:                 * while an explicit block is still open.
                    371:                 * Continue the explicit block without spacing.
                    372:                 */
                    373:                if (ENDBODY_NOSPACE == n->end)
                    374:                        p->flags |= TERMP_NOSPACE;
                    375:        }
1.121     kristaps  376:
                    377:        if (MDOC_EOS & n->flags)
                    378:                p->flags |= TERMP_SENTENCE;
1.29      kristaps  379:
                    380:        p->offset = offset;
1.30      kristaps  381:        p->rmargin = rmargin;
1.1       kristaps  382: }
                    383:
                    384:
1.3       kristaps  385: static void
1.145     kristaps  386: print_mdoc_foot(struct termp *p, const void *arg)
1.1       kristaps  387: {
1.98      kristaps  388:        char            buf[DATESIZ], os[BUFSIZ];
1.144     kristaps  389:        const struct mdoc_meta *m;
                    390:
                    391:        m = (const struct mdoc_meta *)arg;
1.1       kristaps  392:
1.102     kristaps  393:        term_fontrepl(p, TERMFONT_NONE);
1.101     kristaps  394:
1.9       kristaps  395:        /*
                    396:         * Output the footer in new-groff style, that is, three columns
                    397:         * with the middle being the manual date and flanking columns
                    398:         * being the operating system:
                    399:         *
                    400:         * SYSTEM                  DATE                    SYSTEM
                    401:         */
                    402:
1.94      kristaps  403:        time2a(m->date, buf, DATESIZ);
1.98      kristaps  404:        strlcpy(os, m->os, BUFSIZ);
1.1       kristaps  405:
                    406:        term_vspace(p);
                    407:
1.9       kristaps  408:        p->offset = 0;
1.157     kristaps  409:        p->rmargin = (p->maxrmargin -
                    410:                        term_strlen(p, buf) + term_len(p, 1)) / 2;
1.1       kristaps  411:        p->flags |= TERMP_NOSPACE | TERMP_NOBREAK;
                    412:
                    413:        term_word(p, os);
                    414:        term_flushln(p);
                    415:
1.9       kristaps  416:        p->offset = p->rmargin;
1.157     kristaps  417:        p->rmargin = p->maxrmargin - term_strlen(p, os);
1.1       kristaps  418:        p->flags |= TERMP_NOLPAD | TERMP_NOSPACE;
1.9       kristaps  419:
                    420:        term_word(p, buf);
                    421:        term_flushln(p);
                    422:
1.1       kristaps  423:        p->offset = p->rmargin;
                    424:        p->rmargin = p->maxrmargin;
                    425:        p->flags &= ~TERMP_NOBREAK;
1.9       kristaps  426:        p->flags |= TERMP_NOLPAD | TERMP_NOSPACE;
1.1       kristaps  427:
1.9       kristaps  428:        term_word(p, os);
1.1       kristaps  429:        term_flushln(p);
                    430:
1.9       kristaps  431:        p->offset = 0;
                    432:        p->rmargin = p->maxrmargin;
                    433:        p->flags = 0;
1.1       kristaps  434: }
                    435:
                    436:
1.3       kristaps  437: static void
1.144     kristaps  438: print_mdoc_head(struct termp *p, const void *arg)
1.1       kristaps  439: {
1.98      kristaps  440:        char            buf[BUFSIZ], title[BUFSIZ];
1.144     kristaps  441:        const struct mdoc_meta *m;
                    442:
                    443:        m = (const struct mdoc_meta *)arg;
1.1       kristaps  444:
                    445:        p->rmargin = p->maxrmargin;
                    446:        p->offset = 0;
                    447:
                    448:        /*
                    449:         * The header is strange.  It has three components, which are
                    450:         * really two with the first duplicated.  It goes like this:
                    451:         *
                    452:         * IDENTIFIER              TITLE                   IDENTIFIER
                    453:         *
                    454:         * The IDENTIFIER is NAME(SECTION), which is the command-name
                    455:         * (if given, or "unknown" if not) followed by the manual page
                    456:         * section.  These are given in `Dt'.  The TITLE is a free-form
                    457:         * string depending on the manual volume.  If not specified, it
                    458:         * switches on the manual section.
                    459:         */
                    460:
1.86      kristaps  461:        assert(m->vol);
1.98      kristaps  462:        strlcpy(buf, m->vol, BUFSIZ);
1.1       kristaps  463:
1.86      kristaps  464:        if (m->arch) {
1.98      kristaps  465:                strlcat(buf, " (", BUFSIZ);
                    466:                strlcat(buf, m->arch, BUFSIZ);
                    467:                strlcat(buf, ")", BUFSIZ);
1.1       kristaps  468:        }
                    469:
1.124     kristaps  470:        snprintf(title, BUFSIZ, "%s(%s)", m->title, m->msec);
1.1       kristaps  471:
                    472:        p->offset = 0;
1.157     kristaps  473:        p->rmargin = (p->maxrmargin -
                    474:                        term_strlen(p, buf) + term_len(p, 1)) / 2;
1.1       kristaps  475:        p->flags |= TERMP_NOBREAK | TERMP_NOSPACE;
                    476:
                    477:        term_word(p, title);
                    478:        term_flushln(p);
                    479:
                    480:        p->offset = p->rmargin;
1.157     kristaps  481:        p->rmargin = p->maxrmargin - term_strlen(p, title);
1.9       kristaps  482:        p->flags |= TERMP_NOLPAD | TERMP_NOSPACE;
1.1       kristaps  483:
                    484:        term_word(p, buf);
                    485:        term_flushln(p);
                    486:
                    487:        p->offset = p->rmargin;
                    488:        p->rmargin = p->maxrmargin;
                    489:        p->flags &= ~TERMP_NOBREAK;
                    490:        p->flags |= TERMP_NOLPAD | TERMP_NOSPACE;
                    491:
                    492:        term_word(p, title);
                    493:        term_flushln(p);
                    494:
1.9       kristaps  495:        p->offset = 0;
1.1       kristaps  496:        p->rmargin = p->maxrmargin;
                    497:        p->flags &= ~TERMP_NOSPACE;
                    498: }
                    499:
                    500:
                    501: static size_t
1.157     kristaps  502: a2height(const struct termp *p, const char *v)
1.1       kristaps  503: {
1.92      kristaps  504:        struct roffsu    su;
1.91      kristaps  505:
1.157     kristaps  506:        assert(v);
                    507:        if ( ! a2roffsu(v, &su, SCALE_VS))
                    508:                SCALE_VS_INIT(&su, term_len(p, 1));
1.91      kristaps  509:
1.157     kristaps  510:        return(term_vspan(p, &su));
1.91      kristaps  511: }
1.1       kristaps  512:
1.40      kristaps  513:
1.91      kristaps  514: static size_t
1.157     kristaps  515: a2width(const struct termp *p, const char *v)
1.91      kristaps  516: {
1.92      kristaps  517:        struct roffsu    su;
1.1       kristaps  518:
1.154     kristaps  519:        assert(v);
                    520:        if ( ! a2roffsu(v, &su, SCALE_MAX))
1.157     kristaps  521:                SCALE_HS_INIT(&su, term_strlen(p, v));
1.1       kristaps  522:
1.157     kristaps  523:        return(term_hspan(p, &su));
1.1       kristaps  524: }
                    525:
                    526:
                    527: static size_t
1.157     kristaps  528: a2offs(const struct termp *p, const char *v)
1.1       kristaps  529: {
1.92      kristaps  530:        struct roffsu    su;
1.1       kristaps  531:
1.148     kristaps  532:        if ('\0' == *v)
1.91      kristaps  533:                return(0);
1.148     kristaps  534:        else if (0 == strcmp(v, "left"))
1.19      kristaps  535:                return(0);
1.148     kristaps  536:        else if (0 == strcmp(v, "indent"))
1.157     kristaps  537:                return(term_len(p, INDENT + 1));
1.148     kristaps  538:        else if (0 == strcmp(v, "indent-two"))
1.157     kristaps  539:                return(term_len(p, (INDENT + 1) * 2));
1.148     kristaps  540:        else if ( ! a2roffsu(v, &su, SCALE_MAX))
1.157     kristaps  541:                SCALE_HS_INIT(&su, term_strlen(p, v));
1.10      kristaps  542:
1.157     kristaps  543:        return(term_hspan(p, &su));
1.1       kristaps  544: }
                    545:
                    546:
1.108     kristaps  547: /*
                    548:  * Determine how much space to print out before block elements of `It'
                    549:  * (and thus `Bl') and `Bd'.  And then go ahead and print that space,
                    550:  * too.
                    551:  */
1.54      kristaps  552: static void
1.151     kristaps  553: print_bvspace(struct termp *p,
                    554:                const struct mdoc_node *bl,
                    555:                const struct mdoc_node *n)
1.1       kristaps  556: {
1.86      kristaps  557:        const struct mdoc_node  *nn;
1.1       kristaps  558:
                    559:        term_newln(p);
1.150     kristaps  560:
1.202     kristaps  561:        if (MDOC_Bd == bl->tok && bl->norm->Bd.comp)
1.150     kristaps  562:                return;
1.202     kristaps  563:        if (MDOC_Bl == bl->tok && bl->norm->Bl.comp)
1.54      kristaps  564:                return;
                    565:
1.85      kristaps  566:        /* Do not vspace directly after Ss/Sh. */
1.1       kristaps  567:
1.86      kristaps  568:        for (nn = n; nn; nn = nn->parent) {
                    569:                if (MDOC_BLOCK != nn->type)
1.1       kristaps  570:                        continue;
1.86      kristaps  571:                if (MDOC_Ss == nn->tok)
1.54      kristaps  572:                        return;
1.86      kristaps  573:                if (MDOC_Sh == nn->tok)
1.54      kristaps  574:                        return;
1.86      kristaps  575:                if (NULL == nn->prev)
1.1       kristaps  576:                        continue;
                    577:                break;
                    578:        }
                    579:
1.85      kristaps  580:        /* A `-column' does not assert vspace within the list. */
1.54      kristaps  581:
1.202     kristaps  582:        if (MDOC_Bl == bl->tok && LIST_column == bl->norm->Bl.type)
1.86      kristaps  583:                if (n->prev && MDOC_It == n->prev->tok)
1.54      kristaps  584:                        return;
                    585:
1.85      kristaps  586:        /* A `-diag' without body does not vspace. */
                    587:
1.202     kristaps  588:        if (MDOC_Bl == bl->tok && LIST_diag == bl->norm->Bl.type)
1.86      kristaps  589:                if (n->prev && MDOC_It == n->prev->tok) {
                    590:                        assert(n->prev->body);
                    591:                        if (NULL == n->prev->body->child)
1.55      kristaps  592:                                return;
                    593:                }
                    594:
1.54      kristaps  595:        term_vspace(p);
1.1       kristaps  596: }
                    597:
                    598:
                    599: /* ARGSUSED */
                    600: static int
                    601: termp_it_pre(DECL_ARGS)
                    602: {
1.86      kristaps  603:        const struct mdoc_node *bl, *nn;
1.1       kristaps  604:        char                    buf[7];
1.170     kristaps  605:        int                     i;
1.108     kristaps  606:        size_t                  width, offset, ncols, dcol;
1.126     kristaps  607:        enum mdoc_list          type;
1.1       kristaps  608:
1.86      kristaps  609:        if (MDOC_BLOCK == n->type) {
1.151     kristaps  610:                print_bvspace(p, n->parent->parent, n);
1.54      kristaps  611:                return(1);
                    612:        }
1.1       kristaps  613:
1.86      kristaps  614:        bl = n->parent->parent->parent;
1.202     kristaps  615:        type = bl->norm->Bl.type;
1.1       kristaps  616:
1.108     kristaps  617:        /*
                    618:         * First calculate width and offset.  This is pretty easy unless
                    619:         * we're a -column list, in which case all prior columns must
                    620:         * be accounted for.
                    621:         */
                    622:
                    623:        width = offset = 0;
                    624:
1.202     kristaps  625:        if (bl->norm->Bl.offs)
                    626:                offset = a2offs(p, bl->norm->Bl.offs);
1.152     kristaps  627:
1.1       kristaps  628:        switch (type) {
1.126     kristaps  629:        case (LIST_column):
1.134     kristaps  630:                if (MDOC_HEAD == n->type)
1.1       kristaps  631:                        break;
1.155     kristaps  632:
1.105     kristaps  633:                /*
1.108     kristaps  634:                 * Imitate groff's column handling:
                    635:                 * - For each earlier column, add its width.
                    636:                 * - For less than 5 columns, add four more blanks per
                    637:                 *   column.
                    638:                 * - For exactly 5 columns, add three more blank per
                    639:                 *   column.
                    640:                 * - For more than 5 columns, add only one column.
1.105     kristaps  641:                 */
1.202     kristaps  642:                ncols = bl->norm->Bl.ncols;
1.170     kristaps  643:
1.108     kristaps  644:                /* LINTED */
1.157     kristaps  645:                dcol = ncols < 5 ? term_len(p, 4) :
                    646:                        ncols == 5 ? term_len(p, 3) : term_len(p, 1);
1.108     kristaps  647:
1.134     kristaps  648:                /*
                    649:                 * Calculate the offset by applying all prior MDOC_BODY,
                    650:                 * so we stop at the MDOC_HEAD (NULL == nn->prev).
                    651:                 */
                    652:
1.108     kristaps  653:                for (i = 0, nn = n->prev;
1.134     kristaps  654:                                nn->prev && i < (int)ncols;
1.108     kristaps  655:                                nn = nn->prev, i++)
                    656:                        offset += dcol + a2width
1.202     kristaps  657:                                (p, bl->norm->Bl.cols[i]);
1.105     kristaps  658:
                    659:                /*
1.108     kristaps  660:                 * When exceeding the declared number of columns, leave
                    661:                 * the remaining widths at 0.  This will later be
                    662:                 * adjusted to the default width of 10, or, for the last
                    663:                 * column, stretched to the right margin.
1.58      kristaps  664:                 */
1.108     kristaps  665:                if (i >= (int)ncols)
                    666:                        break;
1.58      kristaps  667:
1.105     kristaps  668:                /*
1.108     kristaps  669:                 * Use the declared column widths, extended as explained
                    670:                 * in the preceding paragraph.
1.105     kristaps  671:                 */
1.202     kristaps  672:                width = a2width(p, bl->norm->Bl.cols[i]) + dcol;
1.1       kristaps  673:                break;
                    674:        default:
1.202     kristaps  675:                if (NULL == bl->norm->Bl.width)
1.108     kristaps  676:                        break;
                    677:
                    678:                /*
                    679:                 * Note: buffer the width by 2, which is groff's magic
                    680:                 * number for buffering single arguments.  See the above
                    681:                 * handling for column for how this changes.
                    682:                 */
1.202     kristaps  683:                assert(bl->norm->Bl.width);
                    684:                width = a2width(p, bl->norm->Bl.width) + term_len(p, 2);
1.1       kristaps  685:                break;
                    686:        }
                    687:
                    688:        /*
                    689:         * List-type can override the width in the case of fixed-head
                    690:         * values (bullet, dash/hyphen, enum).  Tags need a non-zero
1.67      kristaps  691:         * offset.
1.1       kristaps  692:         */
                    693:
                    694:        switch (type) {
1.126     kristaps  695:        case (LIST_bullet):
1.1       kristaps  696:                /* FALLTHROUGH */
1.126     kristaps  697:        case (LIST_dash):
1.1       kristaps  698:                /* FALLTHROUGH */
1.126     kristaps  699:        case (LIST_hyphen):
1.157     kristaps  700:                if (width < term_len(p, 4))
                    701:                        width = term_len(p, 4);
1.1       kristaps  702:                break;
1.126     kristaps  703:        case (LIST_enum):
1.157     kristaps  704:                if (width < term_len(p, 5))
                    705:                        width = term_len(p, 5);
1.17      kristaps  706:                break;
1.126     kristaps  707:        case (LIST_hang):
1.39      kristaps  708:                if (0 == width)
1.157     kristaps  709:                        width = term_len(p, 8);
1.39      kristaps  710:                break;
1.126     kristaps  711:        case (LIST_column):
1.49      kristaps  712:                /* FALLTHROUGH */
1.126     kristaps  713:        case (LIST_tag):
1.1       kristaps  714:                if (0 == width)
1.157     kristaps  715:                        width = term_len(p, 10);
1.1       kristaps  716:                break;
                    717:        default:
                    718:                break;
                    719:        }
                    720:
                    721:        /*
1.17      kristaps  722:         * Whitespace control.  Inset bodies need an initial space,
                    723:         * while diagonal bodies need two.
1.1       kristaps  724:         */
                    725:
1.51      kristaps  726:        p->flags |= TERMP_NOSPACE;
                    727:
1.1       kristaps  728:        switch (type) {
1.126     kristaps  729:        case (LIST_diag):
1.86      kristaps  730:                if (MDOC_BODY == n->type)
1.62      kristaps  731:                        term_word(p, "\\ \\ ");
1.51      kristaps  732:                break;
1.126     kristaps  733:        case (LIST_inset):
1.86      kristaps  734:                if (MDOC_BODY == n->type)
1.51      kristaps  735:                        term_word(p, "\\ ");
1.1       kristaps  736:                break;
                    737:        default:
                    738:                break;
                    739:        }
                    740:
1.51      kristaps  741:        p->flags |= TERMP_NOSPACE;
                    742:
1.1       kristaps  743:        switch (type) {
1.126     kristaps  744:        case (LIST_diag):
1.86      kristaps  745:                if (MDOC_HEAD == n->type)
1.102     kristaps  746:                        term_fontpush(p, TERMFONT_BOLD);
1.1       kristaps  747:                break;
                    748:        default:
                    749:                break;
                    750:        }
                    751:
                    752:        /*
1.109     kristaps  753:         * Pad and break control.  This is the tricky part.  These flags
                    754:         * are documented in term_flushln() in term.c.  Note that we're
                    755:         * going to unset all of these flags in termp_it_post() when we
                    756:         * exit.
1.1       kristaps  757:         */
                    758:
                    759:        switch (type) {
1.126     kristaps  760:        case (LIST_bullet):
1.1       kristaps  761:                /* FALLTHROUGH */
1.126     kristaps  762:        case (LIST_dash):
1.1       kristaps  763:                /* FALLTHROUGH */
1.126     kristaps  764:        case (LIST_enum):
1.1       kristaps  765:                /* FALLTHROUGH */
1.126     kristaps  766:        case (LIST_hyphen):
1.86      kristaps  767:                if (MDOC_HEAD == n->type)
1.39      kristaps  768:                        p->flags |= TERMP_NOBREAK;
                    769:                else
                    770:                        p->flags |= TERMP_NOLPAD;
                    771:                break;
1.126     kristaps  772:        case (LIST_hang):
1.86      kristaps  773:                if (MDOC_HEAD == n->type)
1.39      kristaps  774:                        p->flags |= TERMP_NOBREAK;
                    775:                else
                    776:                        p->flags |= TERMP_NOLPAD;
                    777:
1.86      kristaps  778:                if (MDOC_HEAD != n->type)
1.59      kristaps  779:                        break;
                    780:
                    781:                /*
                    782:                 * This is ugly.  If `-hang' is specified and the body
                    783:                 * is a `Bl' or `Bd', then we want basically to nullify
                    784:                 * the "overstep" effect in term_flushln() and treat
                    785:                 * this as a `-ohang' list instead.
                    786:                 */
1.86      kristaps  787:                if (n->next->child &&
                    788:                                (MDOC_Bl == n->next->child->tok ||
                    789:                                 MDOC_Bd == n->next->child->tok)) {
1.59      kristaps  790:                        p->flags &= ~TERMP_NOBREAK;
                    791:                        p->flags &= ~TERMP_NOLPAD;
                    792:                } else
1.39      kristaps  793:                        p->flags |= TERMP_HANG;
                    794:                break;
1.126     kristaps  795:        case (LIST_tag):
1.86      kristaps  796:                if (MDOC_HEAD == n->type)
1.51      kristaps  797:                        p->flags |= TERMP_NOBREAK | TERMP_TWOSPACE;
1.1       kristaps  798:                else
                    799:                        p->flags |= TERMP_NOLPAD;
1.38      kristaps  800:
1.86      kristaps  801:                if (MDOC_HEAD != n->type)
1.39      kristaps  802:                        break;
1.86      kristaps  803:                if (NULL == n->next || NULL == n->next->child)
1.39      kristaps  804:                        p->flags |= TERMP_DANGLE;
1.1       kristaps  805:                break;
1.126     kristaps  806:        case (LIST_column):
1.134     kristaps  807:                if (MDOC_HEAD == n->type)
                    808:                        break;
                    809:
                    810:                if (NULL == n->next)
                    811:                        p->flags &= ~TERMP_NOBREAK;
                    812:                else
                    813:                        p->flags |= TERMP_NOBREAK;
                    814:
                    815:                assert(n->prev);
                    816:                if (MDOC_BODY == n->prev->type)
                    817:                        p->flags |= TERMP_NOLPAD;
                    818:
1.1       kristaps  819:                break;
1.126     kristaps  820:        case (LIST_diag):
1.86      kristaps  821:                if (MDOC_HEAD == n->type)
1.1       kristaps  822:                        p->flags |= TERMP_NOBREAK;
                    823:                break;
                    824:        default:
                    825:                break;
                    826:        }
                    827:
                    828:        /*
                    829:         * Margin control.  Set-head-width lists have their right
                    830:         * margins shortened.  The body for these lists has the offset
                    831:         * necessarily lengthened.  Everybody gets the offset.
                    832:         */
                    833:
                    834:        p->offset += offset;
                    835:
                    836:        switch (type) {
1.126     kristaps  837:        case (LIST_hang):
1.59      kristaps  838:                /*
                    839:                 * Same stipulation as above, regarding `-hang'.  We
                    840:                 * don't want to recalculate rmargin and offsets when
                    841:                 * using `Bd' or `Bl' within `-hang' overstep lists.
                    842:                 */
1.86      kristaps  843:                if (MDOC_HEAD == n->type && n->next->child &&
                    844:                                (MDOC_Bl == n->next->child->tok ||
                    845:                                 MDOC_Bd == n->next->child->tok))
1.59      kristaps  846:                        break;
                    847:                /* FALLTHROUGH */
1.126     kristaps  848:        case (LIST_bullet):
1.1       kristaps  849:                /* FALLTHROUGH */
1.126     kristaps  850:        case (LIST_dash):
1.1       kristaps  851:                /* FALLTHROUGH */
1.126     kristaps  852:        case (LIST_enum):
1.1       kristaps  853:                /* FALLTHROUGH */
1.126     kristaps  854:        case (LIST_hyphen):
1.1       kristaps  855:                /* FALLTHROUGH */
1.126     kristaps  856:        case (LIST_tag):
1.49      kristaps  857:                assert(width);
1.86      kristaps  858:                if (MDOC_HEAD == n->type)
1.1       kristaps  859:                        p->rmargin = p->offset + width;
                    860:                else
                    861:                        p->offset += width;
                    862:                break;
1.126     kristaps  863:        case (LIST_column):
1.49      kristaps  864:                assert(width);
1.1       kristaps  865:                p->rmargin = p->offset + width;
1.50      kristaps  866:                /*
                    867:                 * XXX - this behaviour is not documented: the
                    868:                 * right-most column is filled to the right margin.
                    869:                 */
1.134     kristaps  870:                if (MDOC_HEAD == n->type)
                    871:                        break;
                    872:                if (NULL == n->next && p->rmargin < p->maxrmargin)
1.50      kristaps  873:                        p->rmargin = p->maxrmargin;
1.1       kristaps  874:                break;
                    875:        default:
                    876:                break;
                    877:        }
                    878:
                    879:        /*
                    880:         * The dash, hyphen, bullet and enum lists all have a special
1.15      kristaps  881:         * HEAD character (temporarily bold, in some cases).
1.1       kristaps  882:         */
                    883:
1.86      kristaps  884:        if (MDOC_HEAD == n->type)
1.1       kristaps  885:                switch (type) {
1.126     kristaps  886:                case (LIST_bullet):
1.102     kristaps  887:                        term_fontpush(p, TERMFONT_BOLD);
1.1       kristaps  888:                        term_word(p, "\\[bu]");
1.102     kristaps  889:                        term_fontpop(p);
1.1       kristaps  890:                        break;
1.126     kristaps  891:                case (LIST_dash):
1.1       kristaps  892:                        /* FALLTHROUGH */
1.126     kristaps  893:                case (LIST_hyphen):
1.102     kristaps  894:                        term_fontpush(p, TERMFONT_BOLD);
1.27      kristaps  895:                        term_word(p, "\\(hy");
1.102     kristaps  896:                        term_fontpop(p);
1.1       kristaps  897:                        break;
1.126     kristaps  898:                case (LIST_enum):
1.1       kristaps  899:                        (pair->ppair->ppair->count)++;
1.109     kristaps  900:                        snprintf(buf, sizeof(buf), "%d.",
1.1       kristaps  901:                                        pair->ppair->ppair->count);
                    902:                        term_word(p, buf);
                    903:                        break;
                    904:                default:
                    905:                        break;
                    906:                }
                    907:
                    908:        /*
                    909:         * If we're not going to process our children, indicate so here.
                    910:         */
                    911:
                    912:        switch (type) {
1.126     kristaps  913:        case (LIST_bullet):
1.1       kristaps  914:                /* FALLTHROUGH */
1.126     kristaps  915:        case (LIST_item):
1.1       kristaps  916:                /* FALLTHROUGH */
1.126     kristaps  917:        case (LIST_dash):
1.1       kristaps  918:                /* FALLTHROUGH */
1.126     kristaps  919:        case (LIST_hyphen):
1.1       kristaps  920:                /* FALLTHROUGH */
1.126     kristaps  921:        case (LIST_enum):
1.86      kristaps  922:                if (MDOC_HEAD == n->type)
1.1       kristaps  923:                        return(0);
                    924:                break;
1.126     kristaps  925:        case (LIST_column):
1.134     kristaps  926:                if (MDOC_HEAD == n->type)
1.1       kristaps  927:                        return(0);
                    928:                break;
                    929:        default:
                    930:                break;
                    931:        }
                    932:
                    933:        return(1);
                    934: }
                    935:
                    936:
                    937: /* ARGSUSED */
                    938: static void
                    939: termp_it_post(DECL_ARGS)
                    940: {
1.126     kristaps  941:        enum mdoc_list     type;
1.1       kristaps  942:
1.109     kristaps  943:        if (MDOC_BLOCK == n->type)
1.1       kristaps  944:                return;
                    945:
1.202     kristaps  946:        type = n->parent->parent->parent->norm->Bl.type;
1.1       kristaps  947:
                    948:        switch (type) {
1.126     kristaps  949:        case (LIST_item):
1.1       kristaps  950:                /* FALLTHROUGH */
1.126     kristaps  951:        case (LIST_diag):
1.53      kristaps  952:                /* FALLTHROUGH */
1.126     kristaps  953:        case (LIST_inset):
1.86      kristaps  954:                if (MDOC_BODY == n->type)
1.130     schwarze  955:                        term_newln(p);
1.1       kristaps  956:                break;
1.126     kristaps  957:        case (LIST_column):
1.134     kristaps  958:                if (MDOC_BODY == n->type)
1.1       kristaps  959:                        term_flushln(p);
                    960:                break;
                    961:        default:
1.130     schwarze  962:                term_newln(p);
1.1       kristaps  963:                break;
                    964:        }
                    965:
1.109     kristaps  966:        /*
                    967:         * Now that our output is flushed, we can reset our tags.  Since
                    968:         * only `It' sets these flags, we're free to assume that nobody
                    969:         * has munged them in the meanwhile.
                    970:         */
                    971:
                    972:        p->flags &= ~TERMP_DANGLE;
                    973:        p->flags &= ~TERMP_NOBREAK;
                    974:        p->flags &= ~TERMP_TWOSPACE;
                    975:        p->flags &= ~TERMP_NOLPAD;
                    976:        p->flags &= ~TERMP_HANG;
1.1       kristaps  977: }
                    978:
                    979:
                    980: /* ARGSUSED */
                    981: static int
                    982: termp_nm_pre(DECL_ARGS)
                    983: {
                    984:
1.164     schwarze  985:        if (MDOC_BLOCK == n->type)
                    986:                return(1);
                    987:
                    988:        if (MDOC_BODY == n->type) {
                    989:                if (NULL == n->child)
                    990:                        return(0);
                    991:                p->flags |= TERMP_NOLPAD | TERMP_NOSPACE;
                    992:                p->offset += term_len(p, 1) +
                    993:                    (NULL == n->prev->child ? term_strlen(p, m->name) :
                    994:                     MDOC_TEXT == n->prev->child->type ?
                    995:                        term_strlen(p, n->prev->child->string) :
                    996:                     term_len(p, 5));
                    997:                return(1);
                    998:        }
                    999:
1.125     kristaps 1000:        if (NULL == n->child && NULL == m->name)
1.164     schwarze 1001:                return(0);
1.125     kristaps 1002:
1.177     schwarze 1003:        if (MDOC_HEAD == n->type)
                   1004:                synopsis_pre(p, n->parent);
1.102     kristaps 1005:
1.164     schwarze 1006:        if (MDOC_HEAD == n->type && n->next->child) {
1.185     schwarze 1007:                p->flags |= TERMP_NOSPACE | TERMP_NOBREAK;
                   1008:                p->rmargin = p->offset + term_len(p, 1);
                   1009:                if (NULL == n->child) {
                   1010:                        p->rmargin += term_strlen(p, m->name);
                   1011:                } else if (MDOC_TEXT == n->child->type) {
                   1012:                        p->rmargin += term_strlen(p, n->child->string);
                   1013:                        if (n->child->next)
                   1014:                                p->flags |= TERMP_HANG;
                   1015:                } else {
                   1016:                        p->rmargin += term_len(p, 5);
                   1017:                        p->flags |= TERMP_HANG;
                   1018:                }
1.164     schwarze 1019:        }
                   1020:
1.102     kristaps 1021:        term_fontpush(p, TERMFONT_BOLD);
1.86      kristaps 1022:        if (NULL == n->child)
                   1023:                term_word(p, m->name);
1.1       kristaps 1024:        return(1);
                   1025: }
                   1026:
                   1027:
1.164     schwarze 1028: /* ARGSUSED */
                   1029: static void
                   1030: termp_nm_post(DECL_ARGS)
                   1031: {
                   1032:
                   1033:        if (MDOC_HEAD == n->type && n->next->child) {
                   1034:                term_flushln(p);
                   1035:                p->flags &= ~(TERMP_NOBREAK | TERMP_HANG);
                   1036:        } else if (MDOC_BODY == n->type && n->child) {
                   1037:                term_flushln(p);
                   1038:                p->flags &= ~TERMP_NOLPAD;
                   1039:        }
                   1040: }
                   1041:
                   1042:
1.1       kristaps 1043: /* ARGSUSED */
                   1044: static int
                   1045: termp_fl_pre(DECL_ARGS)
                   1046: {
                   1047:
1.102     kristaps 1048:        term_fontpush(p, TERMFONT_BOLD);
1.1       kristaps 1049:        term_word(p, "\\-");
1.103     kristaps 1050:
                   1051:        if (n->child)
1.114     kristaps 1052:                p->flags |= TERMP_NOSPACE;
                   1053:        else if (n->next && n->next->line == n->line)
1.103     kristaps 1054:                p->flags |= TERMP_NOSPACE;
                   1055:
1.1       kristaps 1056:        return(1);
                   1057: }
                   1058:
                   1059:
                   1060: /* ARGSUSED */
                   1061: static int
1.184     kristaps 1062: termp__a_pre(DECL_ARGS)
                   1063: {
                   1064:
                   1065:        if (n->prev && MDOC__A == n->prev->tok)
                   1066:                if (NULL == n->next || MDOC__A != n->next->tok)
                   1067:                        term_word(p, "and");
                   1068:
                   1069:        return(1);
                   1070: }
                   1071:
                   1072:
                   1073: /* ARGSUSED */
                   1074: static int
1.61      kristaps 1075: termp_an_pre(DECL_ARGS)
                   1076: {
                   1077:
1.86      kristaps 1078:        if (NULL == n->child)
1.61      kristaps 1079:                return(1);
                   1080:
                   1081:        /*
1.85      kristaps 1082:         * If not in the AUTHORS section, `An -split' will cause
                   1083:         * newlines to occur before the author name.  If in the AUTHORS
                   1084:         * section, by default, the first `An' invocation is nosplit,
                   1085:         * then all subsequent ones, regardless of whether interspersed
                   1086:         * with other macros/text, are split.  -split, in this case,
                   1087:         * will override the condition of the implied first -nosplit.
1.61      kristaps 1088:         */
                   1089:
1.86      kristaps 1090:        if (n->sec == SEC_AUTHORS) {
1.61      kristaps 1091:                if ( ! (TERMP_ANPREC & p->flags)) {
                   1092:                        if (TERMP_SPLIT & p->flags)
                   1093:                                term_newln(p);
                   1094:                        return(1);
                   1095:                }
                   1096:                if (TERMP_NOSPLIT & p->flags)
                   1097:                        return(1);
                   1098:                term_newln(p);
                   1099:                return(1);
                   1100:        }
                   1101:
                   1102:        if (TERMP_SPLIT & p->flags)
                   1103:                term_newln(p);
                   1104:
                   1105:        return(1);
                   1106: }
                   1107:
                   1108:
                   1109: /* ARGSUSED */
                   1110: static void
                   1111: termp_an_post(DECL_ARGS)
                   1112: {
                   1113:
1.86      kristaps 1114:        if (n->child) {
                   1115:                if (SEC_AUTHORS == n->sec)
1.61      kristaps 1116:                        p->flags |= TERMP_ANPREC;
                   1117:                return;
                   1118:        }
                   1119:
1.202     kristaps 1120:        if (AUTH_split == n->norm->An.auth) {
1.61      kristaps 1121:                p->flags &= ~TERMP_NOSPLIT;
                   1122:                p->flags |= TERMP_SPLIT;
1.202     kristaps 1123:        } else if (AUTH_nosplit == n->norm->An.auth) {
1.61      kristaps 1124:                p->flags &= ~TERMP_SPLIT;
                   1125:                p->flags |= TERMP_NOSPLIT;
                   1126:        }
                   1127:
                   1128: }
                   1129:
                   1130:
                   1131: /* ARGSUSED */
                   1132: static int
1.1       kristaps 1133: termp_ns_pre(DECL_ARGS)
                   1134: {
                   1135:
                   1136:        p->flags |= TERMP_NOSPACE;
                   1137:        return(1);
                   1138: }
                   1139:
                   1140:
                   1141: /* ARGSUSED */
                   1142: static int
                   1143: termp_rs_pre(DECL_ARGS)
                   1144: {
                   1145:
1.86      kristaps 1146:        if (SEC_SEE_ALSO != n->sec)
1.80      kristaps 1147:                return(1);
1.86      kristaps 1148:        if (MDOC_BLOCK == n->type && n->prev)
1.1       kristaps 1149:                term_vspace(p);
                   1150:        return(1);
                   1151: }
                   1152:
                   1153:
                   1154: /* ARGSUSED */
                   1155: static int
                   1156: termp_rv_pre(DECL_ARGS)
                   1157: {
1.68      kristaps 1158:        const struct mdoc_node  *nn;
1.1       kristaps 1159:
                   1160:        term_newln(p);
                   1161:        term_word(p, "The");
                   1162:
1.86      kristaps 1163:        for (nn = n->child; nn; nn = nn->next) {
1.102     kristaps 1164:                term_fontpush(p, TERMFONT_BOLD);
1.68      kristaps 1165:                term_word(p, nn->string);
1.102     kristaps 1166:                term_fontpop(p);
1.68      kristaps 1167:                p->flags |= TERMP_NOSPACE;
                   1168:                if (nn->next && NULL == nn->next->next)
                   1169:                        term_word(p, "(), and");
                   1170:                else if (nn->next)
                   1171:                        term_word(p, "(),");
                   1172:                else
                   1173:                        term_word(p, "()");
                   1174:        }
                   1175:
1.125     kristaps 1176:        if (n->child && n->child->next)
1.68      kristaps 1177:                term_word(p, "functions return");
                   1178:        else
                   1179:                term_word(p, "function returns");
1.1       kristaps 1180:
1.68      kristaps 1181:                term_word(p, "the value 0 if successful; otherwise the value "
                   1182:                        "-1 is returned and the global variable");
1.1       kristaps 1183:
1.102     kristaps 1184:        term_fontpush(p, TERMFONT_UNDER);
1.1       kristaps 1185:        term_word(p, "errno");
1.102     kristaps 1186:        term_fontpop(p);
1.1       kristaps 1187:
                   1188:                term_word(p, "is set to indicate the error.");
1.131     kristaps 1189:        p->flags |= TERMP_SENTENCE;
1.1       kristaps 1190:
1.68      kristaps 1191:        return(0);
1.1       kristaps 1192: }
                   1193:
                   1194:
                   1195: /* ARGSUSED */
                   1196: static int
                   1197: termp_ex_pre(DECL_ARGS)
                   1198: {
1.68      kristaps 1199:        const struct mdoc_node  *nn;
1.1       kristaps 1200:
1.68      kristaps 1201:        term_word(p, "The");
1.1       kristaps 1202:
1.86      kristaps 1203:        for (nn = n->child; nn; nn = nn->next) {
1.102     kristaps 1204:                term_fontpush(p, TERMFONT_BOLD);
1.68      kristaps 1205:                term_word(p, nn->string);
1.102     kristaps 1206:                term_fontpop(p);
1.68      kristaps 1207:                p->flags |= TERMP_NOSPACE;
                   1208:                if (nn->next && NULL == nn->next->next)
                   1209:                        term_word(p, ", and");
                   1210:                else if (nn->next)
                   1211:                        term_word(p, ",");
                   1212:                else
                   1213:                        p->flags &= ~TERMP_NOSPACE;
                   1214:        }
                   1215:
1.125     kristaps 1216:        if (n->child && n->child->next)
1.68      kristaps 1217:                term_word(p, "utilities exit");
                   1218:        else
                   1219:                term_word(p, "utility exits");
                   1220:
                   1221:                term_word(p, "0 on success, and >0 if an error occurs.");
1.131     kristaps 1222:        p->flags |= TERMP_SENTENCE;
1.1       kristaps 1223:
1.68      kristaps 1224:        return(0);
1.1       kristaps 1225: }
                   1226:
                   1227:
                   1228: /* ARGSUSED */
                   1229: static int
                   1230: termp_nd_pre(DECL_ARGS)
                   1231: {
1.25      kristaps 1232:
1.86      kristaps 1233:        if (MDOC_BODY != n->type)
1.25      kristaps 1234:                return(1);
1.30      kristaps 1235:
1.27      kristaps 1236: #if defined(__OpenBSD__) || defined(__linux__)
1.41      kristaps 1237:        term_word(p, "\\(en");
1.23      kristaps 1238: #else
                   1239:        term_word(p, "\\(em");
                   1240: #endif
1.1       kristaps 1241:        return(1);
1.115     kristaps 1242: }
                   1243:
                   1244:
                   1245: /* ARGSUSED */
                   1246: static int
                   1247: termp_bl_pre(DECL_ARGS)
                   1248: {
                   1249:
                   1250:        return(MDOC_HEAD != n->type);
1.1       kristaps 1251: }
                   1252:
                   1253:
                   1254: /* ARGSUSED */
                   1255: static void
                   1256: termp_bl_post(DECL_ARGS)
                   1257: {
                   1258:
1.86      kristaps 1259:        if (MDOC_BLOCK == n->type)
1.1       kristaps 1260:                term_newln(p);
                   1261: }
                   1262:
                   1263:
                   1264: /* ARGSUSED */
                   1265: static int
                   1266: termp_xr_pre(DECL_ARGS)
                   1267: {
1.86      kristaps 1268:        const struct mdoc_node *nn;
1.1       kristaps 1269:
1.113     kristaps 1270:        if (NULL == n->child)
                   1271:                return(0);
                   1272:
                   1273:        assert(MDOC_TEXT == n->child->type);
1.86      kristaps 1274:        nn = n->child;
1.11      kristaps 1275:
1.86      kristaps 1276:        term_word(p, nn->string);
                   1277:        if (NULL == (nn = nn->next))
1.1       kristaps 1278:                return(0);
                   1279:        p->flags |= TERMP_NOSPACE;
                   1280:        term_word(p, "(");
1.86      kristaps 1281:        term_word(p, nn->string);
1.1       kristaps 1282:        term_word(p, ")");
1.86      kristaps 1283:
1.1       kristaps 1284:        return(0);
                   1285: }
                   1286:
                   1287:
1.143     kristaps 1288: /*
                   1289:  * This decides how to assert whitespace before any of the SYNOPSIS set
                   1290:  * of macros (which, as in the case of Ft/Fo and Ft/Fn, may contain
                   1291:  * macro combos).
                   1292:  */
                   1293: static void
                   1294: synopsis_pre(struct termp *p, const struct mdoc_node *n)
                   1295: {
                   1296:        /*
                   1297:         * Obviously, if we're not in a SYNOPSIS or no prior macros
                   1298:         * exist, do nothing.
                   1299:         */
1.160     kristaps 1300:        if (NULL == n->prev || ! (MDOC_SYNPRETTY & n->flags))
1.143     kristaps 1301:                return;
                   1302:
                   1303:        /*
                   1304:         * If we're the second in a pair of like elements, emit our
                   1305:         * newline and return.  UNLESS we're `Fo', `Fn', `Fn', in which
                   1306:         * case we soldier on.
                   1307:         */
                   1308:        if (n->prev->tok == n->tok &&
                   1309:                        MDOC_Ft != n->tok &&
                   1310:                        MDOC_Fo != n->tok &&
                   1311:                        MDOC_Fn != n->tok) {
                   1312:                term_newln(p);
                   1313:                return;
                   1314:        }
                   1315:
                   1316:        /*
                   1317:         * If we're one of the SYNOPSIS set and non-like pair-wise after
                   1318:         * another (or Fn/Fo, which we've let slip through) then assert
                   1319:         * vertical space, else only newline and move on.
                   1320:         */
                   1321:        switch (n->prev->tok) {
                   1322:        case (MDOC_Fd):
                   1323:                /* FALLTHROUGH */
                   1324:        case (MDOC_Fn):
                   1325:                /* FALLTHROUGH */
                   1326:        case (MDOC_Fo):
                   1327:                /* FALLTHROUGH */
                   1328:        case (MDOC_In):
                   1329:                /* FALLTHROUGH */
                   1330:        case (MDOC_Vt):
                   1331:                term_vspace(p);
                   1332:                break;
                   1333:        case (MDOC_Ft):
                   1334:                if (MDOC_Fn != n->tok && MDOC_Fo != n->tok) {
                   1335:                        term_vspace(p);
                   1336:                        break;
                   1337:                }
                   1338:                /* FALLTHROUGH */
                   1339:        default:
                   1340:                term_newln(p);
                   1341:                break;
                   1342:        }
                   1343: }
                   1344:
                   1345:
1.110     kristaps 1346: static int
                   1347: termp_vt_pre(DECL_ARGS)
                   1348: {
                   1349:
1.143     kristaps 1350:        if (MDOC_ELEM == n->type) {
                   1351:                synopsis_pre(p, n);
1.110     kristaps 1352:                return(termp_under_pre(p, pair, m, n));
1.143     kristaps 1353:        } else if (MDOC_BLOCK == n->type) {
                   1354:                synopsis_pre(p, n);
                   1355:                return(1);
                   1356:        } else if (MDOC_HEAD == n->type)
1.110     kristaps 1357:                return(0);
                   1358:
                   1359:        return(termp_under_pre(p, pair, m, n));
                   1360: }
                   1361:
                   1362:
1.1       kristaps 1363: /* ARGSUSED */
                   1364: static int
1.69      kristaps 1365: termp_bold_pre(DECL_ARGS)
1.1       kristaps 1366: {
                   1367:
1.102     kristaps 1368:        term_fontpush(p, TERMFONT_BOLD);
1.1       kristaps 1369:        return(1);
                   1370: }
                   1371:
                   1372:
                   1373: /* ARGSUSED */
1.143     kristaps 1374: static int
                   1375: termp_fd_pre(DECL_ARGS)
1.1       kristaps 1376: {
                   1377:
1.143     kristaps 1378:        synopsis_pre(p, n);
                   1379:        return(termp_bold_pre(p, pair, m, n));
1.1       kristaps 1380: }
                   1381:
                   1382:
                   1383: /* ARGSUSED */
                   1384: static int
                   1385: termp_sh_pre(DECL_ARGS)
                   1386: {
1.85      kristaps 1387:
                   1388:        /* No vspace between consecutive `Sh' calls. */
                   1389:
1.86      kristaps 1390:        switch (n->type) {
1.65      kristaps 1391:        case (MDOC_BLOCK):
1.86      kristaps 1392:                if (n->prev && MDOC_Sh == n->prev->tok)
                   1393:                        if (NULL == n->prev->body->child)
1.65      kristaps 1394:                                break;
                   1395:                term_vspace(p);
                   1396:                break;
1.1       kristaps 1397:        case (MDOC_HEAD):
1.102     kristaps 1398:                term_fontpush(p, TERMFONT_BOLD);
1.1       kristaps 1399:                break;
                   1400:        case (MDOC_BODY):
1.157     kristaps 1401:                p->offset = term_len(p, INDENT);
1.1       kristaps 1402:                break;
                   1403:        default:
                   1404:                break;
                   1405:        }
                   1406:        return(1);
                   1407: }
                   1408:
                   1409:
                   1410: /* ARGSUSED */
                   1411: static void
                   1412: termp_sh_post(DECL_ARGS)
                   1413: {
                   1414:
1.86      kristaps 1415:        switch (n->type) {
1.1       kristaps 1416:        case (MDOC_HEAD):
                   1417:                term_newln(p);
                   1418:                break;
                   1419:        case (MDOC_BODY):
                   1420:                term_newln(p);
                   1421:                p->offset = 0;
                   1422:                break;
                   1423:        default:
                   1424:                break;
                   1425:        }
                   1426: }
                   1427:
                   1428:
                   1429: /* ARGSUSED */
                   1430: static int
                   1431: termp_bt_pre(DECL_ARGS)
                   1432: {
                   1433:
                   1434:        term_word(p, "is currently in beta test.");
1.131     kristaps 1435:        p->flags |= TERMP_SENTENCE;
1.81      kristaps 1436:        return(0);
1.1       kristaps 1437: }
                   1438:
                   1439:
                   1440: /* ARGSUSED */
                   1441: static void
                   1442: termp_lb_post(DECL_ARGS)
                   1443: {
                   1444:
1.122     kristaps 1445:        if (SEC_LIBRARY == n->sec && MDOC_LINE & n->flags)
1.81      kristaps 1446:                term_newln(p);
1.1       kristaps 1447: }
                   1448:
                   1449:
                   1450: /* ARGSUSED */
                   1451: static int
                   1452: termp_ud_pre(DECL_ARGS)
                   1453: {
                   1454:
                   1455:        term_word(p, "currently under development.");
1.131     kristaps 1456:        p->flags |= TERMP_SENTENCE;
1.86      kristaps 1457:        return(0);
1.1       kristaps 1458: }
                   1459:
                   1460:
                   1461: /* ARGSUSED */
                   1462: static int
                   1463: termp_d1_pre(DECL_ARGS)
                   1464: {
                   1465:
1.86      kristaps 1466:        if (MDOC_BLOCK != n->type)
1.1       kristaps 1467:                return(1);
                   1468:        term_newln(p);
1.157     kristaps 1469:        p->offset += term_len(p, (INDENT + 1));
1.1       kristaps 1470:        return(1);
                   1471: }
                   1472:
                   1473:
                   1474: /* ARGSUSED */
                   1475: static void
                   1476: termp_d1_post(DECL_ARGS)
                   1477: {
                   1478:
1.86      kristaps 1479:        if (MDOC_BLOCK != n->type)
1.1       kristaps 1480:                return;
                   1481:        term_newln(p);
                   1482: }
                   1483:
                   1484:
                   1485: /* ARGSUSED */
                   1486: static int
                   1487: termp_ft_pre(DECL_ARGS)
                   1488: {
                   1489:
1.141     kristaps 1490:        /* NB: MDOC_LINE does not effect this! */
1.143     kristaps 1491:        synopsis_pre(p, n);
1.102     kristaps 1492:        term_fontpush(p, TERMFONT_UNDER);
1.1       kristaps 1493:        return(1);
                   1494: }
                   1495:
                   1496:
                   1497: /* ARGSUSED */
                   1498: static int
                   1499: termp_fn_pre(DECL_ARGS)
                   1500: {
1.86      kristaps 1501:        const struct mdoc_node  *nn;
1.1       kristaps 1502:
1.143     kristaps 1503:        synopsis_pre(p, n);
1.139     kristaps 1504:
1.102     kristaps 1505:        term_fontpush(p, TERMFONT_BOLD);
1.86      kristaps 1506:        term_word(p, n->child->string);
1.102     kristaps 1507:        term_fontpop(p);
1.1       kristaps 1508:
                   1509:        p->flags |= TERMP_NOSPACE;
                   1510:        term_word(p, "(");
                   1511:
1.86      kristaps 1512:        for (nn = n->child->next; nn; nn = nn->next) {
1.102     kristaps 1513:                term_fontpush(p, TERMFONT_UNDER);
1.86      kristaps 1514:                term_word(p, nn->string);
1.102     kristaps 1515:                term_fontpop(p);
                   1516:
1.86      kristaps 1517:                if (nn->next)
1.1       kristaps 1518:                        term_word(p, ",");
                   1519:        }
                   1520:
                   1521:        term_word(p, ")");
                   1522:
1.160     kristaps 1523:        if (MDOC_SYNPRETTY & n->flags)
1.1       kristaps 1524:                term_word(p, ";");
                   1525:
                   1526:        return(0);
                   1527: }
                   1528:
                   1529:
                   1530: /* ARGSUSED */
                   1531: static int
                   1532: termp_fa_pre(DECL_ARGS)
                   1533: {
1.86      kristaps 1534:        const struct mdoc_node  *nn;
1.1       kristaps 1535:
1.86      kristaps 1536:        if (n->parent->tok != MDOC_Fo) {
1.102     kristaps 1537:                term_fontpush(p, TERMFONT_UNDER);
1.1       kristaps 1538:                return(1);
                   1539:        }
                   1540:
1.86      kristaps 1541:        for (nn = n->child; nn; nn = nn->next) {
1.102     kristaps 1542:                term_fontpush(p, TERMFONT_UNDER);
1.86      kristaps 1543:                term_word(p, nn->string);
1.102     kristaps 1544:                term_fontpop(p);
                   1545:
1.86      kristaps 1546:                if (nn->next)
1.1       kristaps 1547:                        term_word(p, ",");
                   1548:        }
                   1549:
1.86      kristaps 1550:        if (n->child && n->next && n->next->tok == MDOC_Fa)
1.1       kristaps 1551:                term_word(p, ",");
                   1552:
                   1553:        return(0);
                   1554: }
                   1555:
                   1556:
                   1557: /* ARGSUSED */
                   1558: static int
                   1559: termp_bd_pre(DECL_ARGS)
                   1560: {
1.179     kristaps 1561:        size_t                   tabwidth, rm, rmax;
1.85      kristaps 1562:        const struct mdoc_node  *nn;
1.1       kristaps 1563:
1.86      kristaps 1564:        if (MDOC_BLOCK == n->type) {
1.151     kristaps 1565:                print_bvspace(p, n, n);
1.54      kristaps 1566:                return(1);
1.116     kristaps 1567:        } else if (MDOC_HEAD == n->type)
                   1568:                return(0);
1.1       kristaps 1569:
1.202     kristaps 1570:        if (n->norm->Bd.offs)
                   1571:                p->offset += a2offs(p, n->norm->Bd.offs);
1.85      kristaps 1572:
                   1573:        /*
                   1574:         * If -ragged or -filled are specified, the block does nothing
                   1575:         * but change the indentation.  If -unfilled or -literal are
                   1576:         * specified, text is printed exactly as entered in the display:
                   1577:         * for macro lines, a newline is appended to the line.  Blank
                   1578:         * lines are allowed.
                   1579:         */
1.60      kristaps 1580:
1.202     kristaps 1581:        if (DISP_literal != n->norm->Bd.type &&
                   1582:                        DISP_unfilled != n->norm->Bd.type)
1.1       kristaps 1583:                return(1);
                   1584:
1.129     schwarze 1585:        tabwidth = p->tabwidth;
1.157     kristaps 1586:        p->tabwidth = term_len(p, 8);
1.119     kristaps 1587:        rm = p->rmargin;
                   1588:        rmax = p->maxrmargin;
1.120     kristaps 1589:        p->rmargin = p->maxrmargin = TERM_MAXMARGIN;
1.118     kristaps 1590:
1.86      kristaps 1591:        for (nn = n->child; nn; nn = nn->next) {
1.102     kristaps 1592:                print_mdoc_node(p, pair, m, nn);
1.190     kristaps 1593:                /*
                   1594:                 * If the printed node flushes its own line, then we
                   1595:                 * needn't do it here as well.  This is hacky, but the
                   1596:                 * notion of selective eoln whitespace is pretty dumb
                   1597:                 * anyway, so don't sweat it.
                   1598:                 */
                   1599:                switch (nn->tok) {
1.193     kristaps 1600:                case (MDOC_Sm):
                   1601:                        /* FALLTHROUGH */
1.190     kristaps 1602:                case (MDOC_br):
                   1603:                        /* FALLTHROUGH */
                   1604:                case (MDOC_sp):
                   1605:                        /* FALLTHROUGH */
                   1606:                case (MDOC_Bl):
1.196     kristaps 1607:                        /* FALLTHROUGH */
                   1608:                case (MDOC_D1):
                   1609:                        /* FALLTHROUGH */
                   1610:                case (MDOC_Dl):
1.190     kristaps 1611:                        /* FALLTHROUGH */
                   1612:                case (MDOC_Lp):
                   1613:                        /* FALLTHROUGH */
                   1614:                case (MDOC_Pp):
                   1615:                        continue;
                   1616:                default:
                   1617:                        break;
                   1618:                }
1.180     schwarze 1619:                if (nn->next && nn->next->line == nn->line)
                   1620:                        continue;
                   1621:                term_flushln(p);
                   1622:                p->flags |= TERMP_NOSPACE;
1.1       kristaps 1623:        }
1.147     kristaps 1624:
1.129     schwarze 1625:        p->tabwidth = tabwidth;
1.119     kristaps 1626:        p->rmargin = rm;
                   1627:        p->maxrmargin = rmax;
1.1       kristaps 1628:        return(0);
                   1629: }
                   1630:
                   1631:
                   1632: /* ARGSUSED */
                   1633: static void
                   1634: termp_bd_post(DECL_ARGS)
                   1635: {
1.119     kristaps 1636:        size_t           rm, rmax;
1.1       kristaps 1637:
1.86      kristaps 1638:        if (MDOC_BODY != n->type)
1.1       kristaps 1639:                return;
1.118     kristaps 1640:
1.119     kristaps 1641:        rm = p->rmargin;
                   1642:        rmax = p->maxrmargin;
1.118     kristaps 1643:
1.202     kristaps 1644:        if (DISP_literal == n->norm->Bd.type ||
                   1645:                        DISP_unfilled == n->norm->Bd.type)
1.120     kristaps 1646:                p->rmargin = p->maxrmargin = TERM_MAXMARGIN;
1.118     kristaps 1647:
1.60      kristaps 1648:        p->flags |= TERMP_NOSPACE;
1.130     schwarze 1649:        term_newln(p);
1.118     kristaps 1650:
1.119     kristaps 1651:        p->rmargin = rm;
                   1652:        p->maxrmargin = rmax;
1.1       kristaps 1653: }
                   1654:
                   1655:
                   1656: /* ARGSUSED */
                   1657: static void
                   1658: termp_bx_post(DECL_ARGS)
                   1659: {
                   1660:
1.86      kristaps 1661:        if (n->child)
1.1       kristaps 1662:                p->flags |= TERMP_NOSPACE;
                   1663:        term_word(p, "BSD");
                   1664: }
                   1665:
                   1666:
                   1667: /* ARGSUSED */
                   1668: static int
1.26      kristaps 1669: termp_xx_pre(DECL_ARGS)
1.1       kristaps 1670: {
1.26      kristaps 1671:        const char      *pp;
1.1       kristaps 1672:
1.26      kristaps 1673:        pp = NULL;
1.86      kristaps 1674:        switch (n->tok) {
1.26      kristaps 1675:        case (MDOC_Bsx):
1.194     schwarze 1676:                pp = "BSD/OS";
1.26      kristaps 1677:                break;
                   1678:        case (MDOC_Dx):
1.100     kristaps 1679:                pp = "DragonFly";
1.26      kristaps 1680:                break;
                   1681:        case (MDOC_Fx):
                   1682:                pp = "FreeBSD";
                   1683:                break;
                   1684:        case (MDOC_Nx):
                   1685:                pp = "NetBSD";
                   1686:                break;
                   1687:        case (MDOC_Ox):
                   1688:                pp = "OpenBSD";
                   1689:                break;
                   1690:        case (MDOC_Ux):
                   1691:                pp = "UNIX";
                   1692:                break;
                   1693:        default:
                   1694:                break;
                   1695:        }
1.1       kristaps 1696:
1.26      kristaps 1697:        assert(pp);
                   1698:        term_word(p, pp);
1.1       kristaps 1699:        return(1);
                   1700: }
                   1701:
                   1702:
                   1703: /* ARGSUSED */
                   1704: static int
1.192     schwarze 1705: termp_igndelim_pre(DECL_ARGS)
1.1       kristaps 1706: {
                   1707:
                   1708:        p->flags |= TERMP_IGNDELIM;
                   1709:        return(1);
                   1710: }
                   1711:
                   1712:
                   1713: /* ARGSUSED */
                   1714: static void
                   1715: termp_pf_post(DECL_ARGS)
                   1716: {
                   1717:
                   1718:        p->flags |= TERMP_NOSPACE;
                   1719: }
                   1720:
                   1721:
                   1722: /* ARGSUSED */
                   1723: static int
                   1724: termp_ss_pre(DECL_ARGS)
                   1725: {
                   1726:
1.86      kristaps 1727:        switch (n->type) {
1.1       kristaps 1728:        case (MDOC_BLOCK):
                   1729:                term_newln(p);
1.86      kristaps 1730:                if (n->prev)
1.1       kristaps 1731:                        term_vspace(p);
                   1732:                break;
                   1733:        case (MDOC_HEAD):
1.102     kristaps 1734:                term_fontpush(p, TERMFONT_BOLD);
1.157     kristaps 1735:                p->offset = term_len(p, HALFINDENT);
1.1       kristaps 1736:                break;
                   1737:        default:
                   1738:                break;
                   1739:        }
                   1740:
                   1741:        return(1);
                   1742: }
                   1743:
                   1744:
                   1745: /* ARGSUSED */
                   1746: static void
                   1747: termp_ss_post(DECL_ARGS)
                   1748: {
                   1749:
1.86      kristaps 1750:        if (MDOC_HEAD == n->type)
1.1       kristaps 1751:                term_newln(p);
                   1752: }
                   1753:
                   1754:
                   1755: /* ARGSUSED */
                   1756: static int
                   1757: termp_cd_pre(DECL_ARGS)
                   1758: {
                   1759:
1.143     kristaps 1760:        synopsis_pre(p, n);
1.102     kristaps 1761:        term_fontpush(p, TERMFONT_BOLD);
1.1       kristaps 1762:        return(1);
                   1763: }
                   1764:
                   1765:
                   1766: /* ARGSUSED */
                   1767: static int
                   1768: termp_in_pre(DECL_ARGS)
                   1769: {
1.142     schwarze 1770:
1.143     kristaps 1771:        synopsis_pre(p, n);
1.1       kristaps 1772:
1.160     kristaps 1773:        if (MDOC_SYNPRETTY & n->flags && MDOC_LINE & n->flags) {
1.138     kristaps 1774:                term_fontpush(p, TERMFONT_BOLD);
1.22      kristaps 1775:                term_word(p, "#include");
1.138     kristaps 1776:                term_word(p, "<");
                   1777:        } else {
                   1778:                term_word(p, "<");
                   1779:                term_fontpush(p, TERMFONT_UNDER);
                   1780:        }
1.22      kristaps 1781:
1.1       kristaps 1782:        p->flags |= TERMP_NOSPACE;
                   1783:        return(1);
                   1784: }
                   1785:
                   1786:
                   1787: /* ARGSUSED */
                   1788: static void
                   1789: termp_in_post(DECL_ARGS)
                   1790: {
                   1791:
1.160     kristaps 1792:        if (MDOC_SYNPRETTY & n->flags)
1.138     kristaps 1793:                term_fontpush(p, TERMFONT_BOLD);
                   1794:
1.79      kristaps 1795:        p->flags |= TERMP_NOSPACE;
1.1       kristaps 1796:        term_word(p, ">");
                   1797:
1.160     kristaps 1798:        if (MDOC_SYNPRETTY & n->flags)
1.138     kristaps 1799:                term_fontpop(p);
1.1       kristaps 1800: }
                   1801:
                   1802:
                   1803: /* ARGSUSED */
                   1804: static int
1.45      kristaps 1805: termp_sp_pre(DECL_ARGS)
                   1806: {
1.91      kristaps 1807:        size_t           i, len;
1.45      kristaps 1808:
1.86      kristaps 1809:        switch (n->tok) {
1.76      kristaps 1810:        case (MDOC_sp):
1.157     kristaps 1811:                len = n->child ? a2height(p, n->child->string) : 1;
1.76      kristaps 1812:                break;
                   1813:        case (MDOC_br):
                   1814:                len = 0;
                   1815:                break;
                   1816:        default:
                   1817:                len = 1;
                   1818:                break;
1.45      kristaps 1819:        }
                   1820:
                   1821:        if (0 == len)
                   1822:                term_newln(p);
                   1823:        for (i = 0; i < len; i++)
                   1824:                term_vspace(p);
                   1825:
                   1826:        return(0);
                   1827: }
                   1828:
                   1829:
1.189     kristaps 1830: /* ARGSUSED */
1.45      kristaps 1831: static int
1.188     kristaps 1832: termp_quote_pre(DECL_ARGS)
1.1       kristaps 1833: {
                   1834:
1.203     kristaps 1835:        if (MDOC_BODY != n->type && MDOC_ELEM != n->type)
1.1       kristaps 1836:                return(1);
                   1837:
1.188     kristaps 1838:        switch (n->tok) {
                   1839:        case (MDOC_Ao):
                   1840:                /* FALLTHROUGH */
                   1841:        case (MDOC_Aq):
                   1842:                term_word(p, "<");
                   1843:                break;
                   1844:        case (MDOC_Bro):
                   1845:                /* FALLTHROUGH */
                   1846:        case (MDOC_Brq):
                   1847:                term_word(p, "{");
                   1848:                break;
                   1849:        case (MDOC_Oo):
                   1850:                /* FALLTHROUGH */
                   1851:        case (MDOC_Op):
                   1852:                /* FALLTHROUGH */
                   1853:        case (MDOC_Bo):
                   1854:                /* FALLTHROUGH */
                   1855:        case (MDOC_Bq):
                   1856:                term_word(p, "[");
                   1857:                break;
1.203     kristaps 1858:        case (MDOC__T):
                   1859:                /* FALLTHROUGH */
1.188     kristaps 1860:        case (MDOC_Do):
                   1861:                /* FALLTHROUGH */
                   1862:        case (MDOC_Dq):
                   1863:                term_word(p, "``");
                   1864:                break;
                   1865:        case (MDOC_Po):
                   1866:                /* FALLTHROUGH */
                   1867:        case (MDOC_Pq):
                   1868:                term_word(p, "(");
                   1869:                break;
                   1870:        case (MDOC_Qo):
                   1871:                /* FALLTHROUGH */
                   1872:        case (MDOC_Qq):
                   1873:                term_word(p, "\"");
                   1874:                break;
                   1875:        case (MDOC_Ql):
                   1876:                /* FALLTHROUGH */
                   1877:        case (MDOC_So):
                   1878:                /* FALLTHROUGH */
                   1879:        case (MDOC_Sq):
                   1880:                term_word(p, "`");
                   1881:                break;
                   1882:        default:
                   1883:                abort();
                   1884:                /* NOTREACHED */
                   1885:        }
1.1       kristaps 1886:
                   1887:        p->flags |= TERMP_NOSPACE;
                   1888:        return(1);
                   1889: }
                   1890:
                   1891:
1.189     kristaps 1892: /* ARGSUSED */
1.1       kristaps 1893: static void
1.188     kristaps 1894: termp_quote_post(DECL_ARGS)
1.1       kristaps 1895: {
                   1896:
1.203     kristaps 1897:        if (MDOC_BODY != n->type && MDOC_ELEM != n->type)
1.1       kristaps 1898:                return;
                   1899:
                   1900:        p->flags |= TERMP_NOSPACE;
                   1901:
1.188     kristaps 1902:        switch (n->tok) {
                   1903:        case (MDOC_Ao):
                   1904:                /* FALLTHROUGH */
                   1905:        case (MDOC_Aq):
                   1906:                term_word(p, ">");
                   1907:                break;
                   1908:        case (MDOC_Bro):
                   1909:                /* FALLTHROUGH */
                   1910:        case (MDOC_Brq):
                   1911:                term_word(p, "}");
                   1912:                break;
                   1913:        case (MDOC_Oo):
                   1914:                /* FALLTHROUGH */
                   1915:        case (MDOC_Op):
                   1916:                /* FALLTHROUGH */
                   1917:        case (MDOC_Bo):
                   1918:                /* FALLTHROUGH */
                   1919:        case (MDOC_Bq):
                   1920:                term_word(p, "]");
                   1921:                break;
1.203     kristaps 1922:        case (MDOC__T):
                   1923:                /* FALLTHROUGH */
1.188     kristaps 1924:        case (MDOC_Do):
                   1925:                /* FALLTHROUGH */
                   1926:        case (MDOC_Dq):
                   1927:                term_word(p, "''");
                   1928:                break;
                   1929:        case (MDOC_Po):
                   1930:                /* FALLTHROUGH */
                   1931:        case (MDOC_Pq):
                   1932:                term_word(p, ")");
                   1933:                break;
                   1934:        case (MDOC_Qo):
                   1935:                /* FALLTHROUGH */
                   1936:        case (MDOC_Qq):
                   1937:                term_word(p, "\"");
                   1938:                break;
                   1939:        case (MDOC_Ql):
                   1940:                /* FALLTHROUGH */
                   1941:        case (MDOC_So):
                   1942:                /* FALLTHROUGH */
                   1943:        case (MDOC_Sq):
                   1944:                term_word(p, "'");
                   1945:                break;
                   1946:        default:
                   1947:                abort();
                   1948:                /* NOTREACHED */
                   1949:        }
1.1       kristaps 1950: }
                   1951:
                   1952:
                   1953: /* ARGSUSED */
                   1954: static int
                   1955: termp_fo_pre(DECL_ARGS)
                   1956: {
                   1957:
1.141     kristaps 1958:        if (MDOC_BLOCK == n->type) {
1.143     kristaps 1959:                synopsis_pre(p, n);
1.141     kristaps 1960:                return(1);
                   1961:        } else if (MDOC_BODY == n->type) {
1.33      kristaps 1962:                p->flags |= TERMP_NOSPACE;
1.1       kristaps 1963:                term_word(p, "(");
                   1964:                return(1);
1.141     kristaps 1965:        }
                   1966:
1.169     kristaps 1967:        if (NULL == n->child)
                   1968:                return(0);
                   1969:
1.141     kristaps 1970:        /* XXX: we drop non-initial arguments as per groff. */
1.1       kristaps 1971:
1.141     kristaps 1972:        assert(n->child->string);
1.102     kristaps 1973:        term_fontpush(p, TERMFONT_BOLD);
1.141     kristaps 1974:        term_word(p, n->child->string);
1.1       kristaps 1975:        return(0);
                   1976: }
                   1977:
                   1978:
                   1979: /* ARGSUSED */
                   1980: static void
                   1981: termp_fo_post(DECL_ARGS)
                   1982: {
                   1983:
1.143     kristaps 1984:        if (MDOC_BODY != n->type)
                   1985:                return;
                   1986:
                   1987:        term_word(p, ")");
                   1988:
1.188     kristaps 1989:        if (MDOC_SYNPRETTY & n->flags)
1.143     kristaps 1990:                term_word(p, ";");
1.1       kristaps 1991: }
                   1992:
                   1993:
                   1994: /* ARGSUSED */
                   1995: static int
                   1996: termp_bf_pre(DECL_ARGS)
                   1997: {
                   1998:
1.86      kristaps 1999:        if (MDOC_HEAD == n->type)
1.1       kristaps 2000:                return(0);
1.86      kristaps 2001:        else if (MDOC_BLOCK != n->type)
1.1       kristaps 2002:                return(1);
                   2003:
1.202     kristaps 2004:        if (FONT_Em == n->norm->Bf.font)
1.102     kristaps 2005:                term_fontpush(p, TERMFONT_UNDER);
1.202     kristaps 2006:        else if (FONT_Sy == n->norm->Bf.font)
1.102     kristaps 2007:                term_fontpush(p, TERMFONT_BOLD);
1.167     kristaps 2008:        else
1.102     kristaps 2009:                term_fontpush(p, TERMFONT_NONE);
1.1       kristaps 2010:
                   2011:        return(1);
                   2012: }
                   2013:
                   2014:
                   2015: /* ARGSUSED */
                   2016: static int
                   2017: termp_sm_pre(DECL_ARGS)
                   2018: {
                   2019:
1.86      kristaps 2020:        assert(n->child && MDOC_TEXT == n->child->type);
1.174     schwarze 2021:        if (0 == strcmp("on", n->child->string)) {
                   2022:                if (p->col)
                   2023:                        p->flags &= ~TERMP_NOSPACE;
1.1       kristaps 2024:                p->flags &= ~TERMP_NONOSPACE;
1.174     schwarze 2025:        } else
1.1       kristaps 2026:                p->flags |= TERMP_NONOSPACE;
                   2027:
                   2028:        return(0);
                   2029: }
                   2030:
                   2031:
                   2032: /* ARGSUSED */
                   2033: static int
                   2034: termp_ap_pre(DECL_ARGS)
                   2035: {
                   2036:
                   2037:        p->flags |= TERMP_NOSPACE;
1.188     kristaps 2038:        term_word(p, "'");
1.1       kristaps 2039:        p->flags |= TERMP_NOSPACE;
                   2040:        return(1);
                   2041: }
                   2042:
                   2043:
                   2044: /* ARGSUSED */
                   2045: static void
                   2046: termp____post(DECL_ARGS)
                   2047: {
1.184     kristaps 2048:
                   2049:        /*
                   2050:         * Handle lists of authors.  In general, print each followed by
                   2051:         * a comma.  Don't print the comma if there are only two
                   2052:         * authors.
                   2053:         */
                   2054:        if (MDOC__A == n->tok && n->next && MDOC__A == n->next->tok)
                   2055:                if (NULL == n->next->next || MDOC__A != n->next->next->tok)
                   2056:                        if (NULL == n->prev || MDOC__A != n->prev->tok)
                   2057:                                return;
1.1       kristaps 2058:
1.95      kristaps 2059:        /* TODO: %U. */
                   2060:
1.187     kristaps 2061:        if (NULL == n->parent || MDOC_Rs != n->parent->tok)
                   2062:                return;
                   2063:
1.186     kristaps 2064:        if (NULL == n->next) {
                   2065:                term_word(p, ".");
                   2066:                p->flags |= TERMP_SENTENCE;
                   2067:        } else
                   2068:                term_word(p, ",");
1.1       kristaps 2069: }
                   2070:
                   2071:
                   2072: /* ARGSUSED */
                   2073: static int
1.102     kristaps 2074: termp_li_pre(DECL_ARGS)
                   2075: {
                   2076:
                   2077:        term_fontpush(p, TERMFONT_NONE);
                   2078:        return(1);
                   2079: }
                   2080:
                   2081:
                   2082: /* ARGSUSED */
                   2083: static int
1.1       kristaps 2084: termp_lk_pre(DECL_ARGS)
                   2085: {
1.181     kristaps 2086:        const struct mdoc_node *nn, *sv;
1.1       kristaps 2087:
1.102     kristaps 2088:        term_fontpush(p, TERMFONT_UNDER);
1.181     kristaps 2089:
                   2090:        nn = sv = n->child;
1.96      kristaps 2091:
1.195     kristaps 2092:        if (NULL == nn || NULL == nn->next)
1.12      kristaps 2093:                return(1);
                   2094:
1.181     kristaps 2095:        for (nn = nn->next; nn; nn = nn->next)
                   2096:                term_word(p, nn->string);
                   2097:
1.102     kristaps 2098:        term_fontpop(p);
1.96      kristaps 2099:
1.1       kristaps 2100:        term_word(p, ":");
                   2101:
1.102     kristaps 2102:        term_fontpush(p, TERMFONT_BOLD);
1.181     kristaps 2103:        term_word(p, sv->string);
1.102     kristaps 2104:        term_fontpop(p);
1.12      kristaps 2105:
1.1       kristaps 2106:        return(0);
                   2107: }
                   2108:
1.159     schwarze 2109:
                   2110: /* ARGSUSED */
                   2111: static int
                   2112: termp_bk_pre(DECL_ARGS)
                   2113: {
                   2114:
1.161     schwarze 2115:        switch (n->type) {
                   2116:        case (MDOC_BLOCK):
1.166     kristaps 2117:                break;
1.161     schwarze 2118:        case (MDOC_HEAD):
                   2119:                return(0);
                   2120:        case (MDOC_BODY):
1.200     schwarze 2121:                if (n->parent->args || 0 == n->prev->nchild)
                   2122:                        p->flags |= TERMP_PREKEEP;
1.166     kristaps 2123:                break;
1.161     schwarze 2124:        default:
                   2125:                abort();
1.166     kristaps 2126:                /* NOTREACHED */
1.161     schwarze 2127:        }
1.166     kristaps 2128:
                   2129:        return(1);
1.159     schwarze 2130: }
                   2131:
                   2132:
                   2133: /* ARGSUSED */
                   2134: static void
                   2135: termp_bk_post(DECL_ARGS)
                   2136: {
                   2137:
1.161     schwarze 2138:        if (MDOC_BODY == n->type)
                   2139:                p->flags &= ~(TERMP_KEEP | TERMP_PREKEEP);
1.203     kristaps 2140: }
                   2141:
                   2142: /* ARGSUSED */
                   2143: static void
                   2144: termp__t_post(DECL_ARGS)
                   2145: {
                   2146:
                   2147:        /*
                   2148:         * If we're in an `Rs' and there's a journal present, then quote
                   2149:         * us instead of underlining us (for disambiguation).
                   2150:         */
1.204   ! kristaps 2151:        if (n->parent && MDOC_Rs == n->parent->tok &&
        !          2152:                        n->parent->norm->Rs.child_J)
1.203     kristaps 2153:                termp_quote_post(p, pair, m, n);
                   2154:
                   2155:        termp____post(p, pair, m, n);
                   2156: }
                   2157:
                   2158: /* ARGSUSED */
                   2159: static int
                   2160: termp__t_pre(DECL_ARGS)
                   2161: {
                   2162:
                   2163:        /*
                   2164:         * If we're in an `Rs' and there's a journal present, then quote
                   2165:         * us instead of underlining us (for disambiguation).
                   2166:         */
                   2167:        if (n->parent && MDOC_Rs == n->parent->tok &&
1.204   ! kristaps 2168:                        n->parent->norm->Rs.child_J)
1.203     kristaps 2169:                return(termp_quote_pre(p, pair, m, n));
                   2170:
                   2171:        term_fontpush(p, TERMFONT_UNDER);
                   2172:        return(1);
1.159     schwarze 2173: }
1.1       kristaps 2174:
                   2175: /* ARGSUSED */
                   2176: static int
1.69      kristaps 2177: termp_under_pre(DECL_ARGS)
1.1       kristaps 2178: {
                   2179:
1.102     kristaps 2180:        term_fontpush(p, TERMFONT_UNDER);
1.84      kristaps 2181:        return(1);
                   2182: }

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