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Annotation of src/usr.bin/mandoc/mdoc_term.c, Revision 1.93

1.93    ! schwarze    1: /*     $Id: mdoc_term.c,v 1.92 2010/06/27 21:54:42 schwarze Exp $ */
1.1       kristaps    2: /*
1.88      schwarze    3:  * Copyright (c) 2008, 2009 Kristaps Dzonsons <kristaps@bsd.lv>
1.1       kristaps    4:  *
                      5:  * Permission to use, copy, modify, and distribute this software for any
1.2       schwarze    6:  * purpose with or without fee is hereby granted, provided that the above
                      7:  * copyright notice and this permission notice appear in all copies.
1.1       kristaps    8:  *
1.2       schwarze    9:  * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
                     10:  * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
                     11:  * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
                     12:  * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
                     13:  * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
                     14:  * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
                     15:  * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
1.1       kristaps   16:  */
                     17: #include <sys/types.h>
                     18:
                     19: #include <assert.h>
                     20: #include <ctype.h>
1.77      schwarze   21: #include <stdint.h>
1.1       kristaps   22: #include <stdio.h>
                     23: #include <stdlib.h>
                     24: #include <string.h>
                     25:
1.81      schwarze   26: #include "mandoc.h"
1.61      schwarze   27: #include "out.h"
1.1       kristaps   28: #include "term.h"
1.92      schwarze   29: #include "regs.h"
1.1       kristaps   30: #include "mdoc.h"
1.61      schwarze   31: #include "chars.h"
                     32: #include "main.h"
1.54      schwarze   33:
1.51      schwarze   34: #define        INDENT            5
                     35: #define        HALFINDENT        3
1.1       kristaps   36:
                     37: struct termpair {
                     38:        struct termpair  *ppair;
1.27      schwarze   39:        int               count;
1.1       kristaps   40: };
                     41:
1.29      schwarze   42: #define        DECL_ARGS struct termp *p, \
                     43:                  struct termpair *pair, \
1.60      schwarze   44:                  const struct mdoc_meta *m, \
                     45:                  const struct mdoc_node *n
1.1       kristaps   46:
                     47: struct termact {
                     48:        int     (*pre)(DECL_ARGS);
                     49:        void    (*post)(DECL_ARGS);
                     50: };
1.29      schwarze   51:
1.89      schwarze   52: static size_t    a2width(const struct termp *, const char *);
                     53: static size_t    a2height(const struct termp *, const char *);
                     54: static size_t    a2offs(const struct termp *, const char *);
1.62      schwarze   55:
                     56: static int       arg_hasattr(int, const struct mdoc_node *);
                     57: static int       arg_getattr(int, const struct mdoc_node *);
                     58: static void      print_bvspace(struct termp *,
                     59:                        const struct mdoc_node *,
                     60:                        const struct mdoc_node *);
1.65      schwarze   61: static void      print_mdoc_node(DECL_ARGS);
                     62: static void      print_mdoc_nodelist(DECL_ARGS);
1.87      schwarze   63: static void      print_mdoc_head(struct termp *, const void *);
                     64: static void      print_mdoc_foot(struct termp *, const void *);
1.86      schwarze   65: static void      synopsis_pre(struct termp *,
                     66:                        const struct mdoc_node *);
1.62      schwarze   67:
1.29      schwarze   68: static void      termp____post(DECL_ARGS);
1.49      schwarze   69: static void      termp_an_post(DECL_ARGS);
1.29      schwarze   70: static void      termp_aq_post(DECL_ARGS);
                     71: static void      termp_bd_post(DECL_ARGS);
1.90      schwarze   72: static void      termp_bk_post(DECL_ARGS);
1.29      schwarze   73: static void      termp_bl_post(DECL_ARGS);
                     74: static void      termp_bq_post(DECL_ARGS);
                     75: static void      termp_brq_post(DECL_ARGS);
                     76: static void      termp_bx_post(DECL_ARGS);
                     77: static void      termp_d1_post(DECL_ARGS);
                     78: static void      termp_dq_post(DECL_ARGS);
1.86      schwarze   79: static int       termp_fd_pre(DECL_ARGS);
1.29      schwarze   80: static void      termp_fo_post(DECL_ARGS);
                     81: static void      termp_in_post(DECL_ARGS);
                     82: static void      termp_it_post(DECL_ARGS);
                     83: static void      termp_lb_post(DECL_ARGS);
                     84: static void      termp_op_post(DECL_ARGS);
                     85: static void      termp_pf_post(DECL_ARGS);
                     86: static void      termp_pq_post(DECL_ARGS);
                     87: static void      termp_qq_post(DECL_ARGS);
                     88: static void      termp_sh_post(DECL_ARGS);
                     89: static void      termp_sq_post(DECL_ARGS);
                     90: static void      termp_ss_post(DECL_ARGS);
                     91:
1.49      schwarze   92: static int       termp_an_pre(DECL_ARGS);
1.29      schwarze   93: static int       termp_ap_pre(DECL_ARGS);
                     94: static int       termp_aq_pre(DECL_ARGS);
                     95: static int       termp_bd_pre(DECL_ARGS);
                     96: static int       termp_bf_pre(DECL_ARGS);
1.90      schwarze   97: static int       termp_bk_pre(DECL_ARGS);
1.73      schwarze   98: static int       termp_bl_pre(DECL_ARGS);
1.54      schwarze   99: static int       termp_bold_pre(DECL_ARGS);
1.29      schwarze  100: static int       termp_bq_pre(DECL_ARGS);
                    101: static int       termp_brq_pre(DECL_ARGS);
                    102: static int       termp_bt_pre(DECL_ARGS);
                    103: static int       termp_cd_pre(DECL_ARGS);
                    104: static int       termp_d1_pre(DECL_ARGS);
                    105: static int       termp_dq_pre(DECL_ARGS);
                    106: static int       termp_ex_pre(DECL_ARGS);
                    107: static int       termp_fa_pre(DECL_ARGS);
                    108: static int       termp_fl_pre(DECL_ARGS);
                    109: static int       termp_fn_pre(DECL_ARGS);
                    110: static int       termp_fo_pre(DECL_ARGS);
                    111: static int       termp_ft_pre(DECL_ARGS);
                    112: static int       termp_in_pre(DECL_ARGS);
                    113: static int       termp_it_pre(DECL_ARGS);
1.65      schwarze  114: static int       termp_li_pre(DECL_ARGS);
1.29      schwarze  115: static int       termp_lk_pre(DECL_ARGS);
                    116: static int       termp_nd_pre(DECL_ARGS);
                    117: static int       termp_nm_pre(DECL_ARGS);
                    118: static int       termp_ns_pre(DECL_ARGS);
                    119: static int       termp_op_pre(DECL_ARGS);
                    120: static int       termp_pf_pre(DECL_ARGS);
                    121: static int       termp_pq_pre(DECL_ARGS);
                    122: static int       termp_qq_pre(DECL_ARGS);
                    123: static int       termp_rs_pre(DECL_ARGS);
                    124: static int       termp_rv_pre(DECL_ARGS);
                    125: static int       termp_sh_pre(DECL_ARGS);
                    126: static int       termp_sm_pre(DECL_ARGS);
1.38      schwarze  127: static int       termp_sp_pre(DECL_ARGS);
1.29      schwarze  128: static int       termp_sq_pre(DECL_ARGS);
                    129: static int       termp_ss_pre(DECL_ARGS);
1.54      schwarze  130: static int       termp_under_pre(DECL_ARGS);
1.29      schwarze  131: static int       termp_ud_pre(DECL_ARGS);
1.69      schwarze  132: static int       termp_vt_pre(DECL_ARGS);
1.29      schwarze  133: static int       termp_xr_pre(DECL_ARGS);
                    134: static int       termp_xx_pre(DECL_ARGS);
1.1       kristaps  135:
1.54      schwarze  136: static const struct termact termacts[MDOC_MAX] = {
1.11      schwarze  137:        { termp_ap_pre, NULL }, /* Ap */
1.1       kristaps  138:        { NULL, NULL }, /* Dd */
                    139:        { NULL, NULL }, /* Dt */
                    140:        { NULL, NULL }, /* Os */
                    141:        { termp_sh_pre, termp_sh_post }, /* Sh */
                    142:        { termp_ss_pre, termp_ss_post }, /* Ss */
1.54      schwarze  143:        { termp_sp_pre, NULL }, /* Pp */
1.1       kristaps  144:        { termp_d1_pre, termp_d1_post }, /* D1 */
                    145:        { termp_d1_pre, termp_d1_post }, /* Dl */
                    146:        { termp_bd_pre, termp_bd_post }, /* Bd */
                    147:        { NULL, NULL }, /* Ed */
1.73      schwarze  148:        { termp_bl_pre, termp_bl_post }, /* Bl */
1.1       kristaps  149:        { NULL, NULL }, /* El */
                    150:        { termp_it_pre, termp_it_post }, /* It */
                    151:        { NULL, NULL }, /* Ad */
1.49      schwarze  152:        { termp_an_pre, termp_an_post }, /* An */
1.54      schwarze  153:        { termp_under_pre, NULL }, /* Ar */
1.1       kristaps  154:        { termp_cd_pre, NULL }, /* Cd */
1.54      schwarze  155:        { termp_bold_pre, NULL }, /* Cm */
1.1       kristaps  156:        { NULL, NULL }, /* Dv */
                    157:        { NULL, NULL }, /* Er */
                    158:        { NULL, NULL }, /* Ev */
                    159:        { termp_ex_pre, NULL }, /* Ex */
                    160:        { termp_fa_pre, NULL }, /* Fa */
1.86      schwarze  161:        { termp_fd_pre, NULL }, /* Fd */
1.1       kristaps  162:        { termp_fl_pre, NULL }, /* Fl */
1.86      schwarze  163:        { termp_fn_pre, NULL }, /* Fn */
1.85      schwarze  164:        { termp_ft_pre, NULL }, /* Ft */
1.54      schwarze  165:        { termp_bold_pre, NULL }, /* Ic */
1.1       kristaps  166:        { termp_in_pre, termp_in_post }, /* In */
1.65      schwarze  167:        { termp_li_pre, NULL }, /* Li */
1.1       kristaps  168:        { termp_nd_pre, NULL }, /* Nd */
                    169:        { termp_nm_pre, NULL }, /* Nm */
                    170:        { termp_op_pre, termp_op_post }, /* Op */
                    171:        { NULL, NULL }, /* Ot */
1.54      schwarze  172:        { termp_under_pre, NULL }, /* Pa */
1.1       kristaps  173:        { termp_rv_pre, NULL }, /* Rv */
1.32      schwarze  174:        { NULL, NULL }, /* St */
1.54      schwarze  175:        { termp_under_pre, NULL }, /* Va */
1.86      schwarze  176:        { termp_vt_pre, NULL }, /* Vt */
1.1       kristaps  177:        { termp_xr_pre, NULL }, /* Xr */
                    178:        { NULL, termp____post }, /* %A */
1.58      schwarze  179:        { termp_under_pre, termp____post }, /* %B */
1.1       kristaps  180:        { NULL, termp____post }, /* %D */
1.58      schwarze  181:        { termp_under_pre, termp____post }, /* %I */
1.54      schwarze  182:        { termp_under_pre, termp____post }, /* %J */
1.1       kristaps  183:        { NULL, termp____post }, /* %N */
                    184:        { NULL, termp____post }, /* %O */
                    185:        { NULL, termp____post }, /* %P */
                    186:        { NULL, termp____post }, /* %R */
1.76      schwarze  187:        { termp_under_pre, termp____post }, /* %T */
1.1       kristaps  188:        { NULL, termp____post }, /* %V */
                    189:        { NULL, NULL }, /* Ac */
                    190:        { termp_aq_pre, termp_aq_post }, /* Ao */
                    191:        { termp_aq_pre, termp_aq_post }, /* Aq */
1.32      schwarze  192:        { NULL, NULL }, /* At */
1.1       kristaps  193:        { NULL, NULL }, /* Bc */
                    194:        { termp_bf_pre, NULL }, /* Bf */
                    195:        { termp_bq_pre, termp_bq_post }, /* Bo */
                    196:        { termp_bq_pre, termp_bq_post }, /* Bq */
1.26      schwarze  197:        { termp_xx_pre, NULL }, /* Bsx */
1.1       kristaps  198:        { NULL, termp_bx_post }, /* Bx */
                    199:        { NULL, NULL }, /* Db */
                    200:        { NULL, NULL }, /* Dc */
                    201:        { termp_dq_pre, termp_dq_post }, /* Do */
                    202:        { termp_dq_pre, termp_dq_post }, /* Dq */
1.73      schwarze  203:        { NULL, NULL }, /* Ec */ /* FIXME: no space */
1.1       kristaps  204:        { NULL, NULL }, /* Ef */
1.54      schwarze  205:        { termp_under_pre, NULL }, /* Em */
1.1       kristaps  206:        { NULL, NULL }, /* Eo */
1.26      schwarze  207:        { termp_xx_pre, NULL }, /* Fx */
1.58      schwarze  208:        { termp_bold_pre, NULL }, /* Ms */ /* FIXME: convert to symbol? */
1.1       kristaps  209:        { NULL, NULL }, /* No */
                    210:        { termp_ns_pre, NULL }, /* Ns */
1.26      schwarze  211:        { termp_xx_pre, NULL }, /* Nx */
                    212:        { termp_xx_pre, NULL }, /* Ox */
1.1       kristaps  213:        { NULL, NULL }, /* Pc */
                    214:        { termp_pf_pre, termp_pf_post }, /* Pf */
                    215:        { termp_pq_pre, termp_pq_post }, /* Po */
                    216:        { termp_pq_pre, termp_pq_post }, /* Pq */
                    217:        { NULL, NULL }, /* Qc */
                    218:        { termp_sq_pre, termp_sq_post }, /* Ql */
                    219:        { termp_qq_pre, termp_qq_post }, /* Qo */
                    220:        { termp_qq_pre, termp_qq_post }, /* Qq */
                    221:        { NULL, NULL }, /* Re */
                    222:        { termp_rs_pre, NULL }, /* Rs */
                    223:        { NULL, NULL }, /* Sc */
                    224:        { termp_sq_pre, termp_sq_post }, /* So */
                    225:        { termp_sq_pre, termp_sq_post }, /* Sq */
                    226:        { termp_sm_pre, NULL }, /* Sm */
1.54      schwarze  227:        { termp_under_pre, NULL }, /* Sx */
                    228:        { termp_bold_pre, NULL }, /* Sy */
1.1       kristaps  229:        { NULL, NULL }, /* Tn */
1.26      schwarze  230:        { termp_xx_pre, NULL }, /* Ux */
1.1       kristaps  231:        { NULL, NULL }, /* Xc */
                    232:        { NULL, NULL }, /* Xo */
                    233:        { termp_fo_pre, termp_fo_post }, /* Fo */
                    234:        { NULL, NULL }, /* Fc */
                    235:        { termp_op_pre, termp_op_post }, /* Oo */
                    236:        { NULL, NULL }, /* Oc */
1.90      schwarze  237:        { termp_bk_pre, termp_bk_post }, /* Bk */
1.1       kristaps  238:        { NULL, NULL }, /* Ek */
                    239:        { termp_bt_pre, NULL }, /* Bt */
                    240:        { NULL, NULL }, /* Hf */
                    241:        { NULL, NULL }, /* Fr */
                    242:        { termp_ud_pre, NULL }, /* Ud */
1.32      schwarze  243:        { NULL, termp_lb_post }, /* Lb */
1.54      schwarze  244:        { termp_sp_pre, NULL }, /* Lp */
1.1       kristaps  245:        { termp_lk_pre, NULL }, /* Lk */
1.54      schwarze  246:        { termp_under_pre, NULL }, /* Mt */
1.1       kristaps  247:        { termp_brq_pre, termp_brq_post }, /* Brq */
                    248:        { termp_brq_pre, termp_brq_post }, /* Bro */
                    249:        { NULL, NULL }, /* Brc */
1.58      schwarze  250:        { NULL, termp____post }, /* %C */
                    251:        { NULL, NULL }, /* Es */ /* TODO */
                    252:        { NULL, NULL }, /* En */ /* TODO */
1.26      schwarze  253:        { termp_xx_pre, NULL }, /* Dx */
1.58      schwarze  254:        { NULL, termp____post }, /* %Q */
1.54      schwarze  255:        { termp_sp_pre, NULL }, /* br */
1.38      schwarze  256:        { termp_sp_pre, NULL }, /* sp */
1.62      schwarze  257:        { termp_under_pre, termp____post }, /* %U */
1.85      schwarze  258:        { NULL, NULL }, /* Ta */
1.1       kristaps  259: };
                    260:
                    261:
1.55      schwarze  262: void
1.61      schwarze  263: terminal_mdoc(void *arg, const struct mdoc *mdoc)
1.1       kristaps  264: {
1.55      schwarze  265:        const struct mdoc_node  *n;
                    266:        const struct mdoc_meta  *m;
1.61      schwarze  267:        struct termp            *p;
                    268:
                    269:        p = (struct termp *)arg;
1.71      schwarze  270:
                    271:        p->overstep = 0;
1.80      schwarze  272:        p->maxrmargin = p->defrmargin;
1.89      schwarze  273:        p->tabwidth = term_len(p, 5);
1.61      schwarze  274:
                    275:        if (NULL == p->symtab)
                    276:                switch (p->enc) {
                    277:                case (TERMENC_ASCII):
                    278:                        p->symtab = chars_init(CHARS_ASCII);
                    279:                        break;
                    280:                default:
                    281:                        abort();
                    282:                        /* NOTREACHED */
                    283:                }
1.55      schwarze  284:
                    285:        n = mdoc_node(mdoc);
                    286:        m = mdoc_meta(mdoc);
                    287:
1.87      schwarze  288:        term_begin(p, print_mdoc_head, print_mdoc_foot, m);
                    289:
1.55      schwarze  290:        if (n->child)
1.65      schwarze  291:                print_mdoc_nodelist(p, NULL, m, n->child);
1.87      schwarze  292:
                    293:        term_end(p);
1.1       kristaps  294: }
                    295:
                    296:
                    297: static void
1.65      schwarze  298: print_mdoc_nodelist(DECL_ARGS)
1.1       kristaps  299: {
                    300:
1.65      schwarze  301:        print_mdoc_node(p, pair, m, n);
1.60      schwarze  302:        if (n->next)
1.65      schwarze  303:                print_mdoc_nodelist(p, pair, m, n->next);
1.1       kristaps  304: }
                    305:
                    306:
1.54      schwarze  307: /* ARGSUSED */
1.1       kristaps  308: static void
1.65      schwarze  309: print_mdoc_node(DECL_ARGS)
1.1       kristaps  310: {
1.65      schwarze  311:        int              chld;
                    312:        const void      *font;
1.1       kristaps  313:        struct termpair  npair;
1.28      schwarze  314:        size_t           offset, rmargin;
1.1       kristaps  315:
1.54      schwarze  316:        chld = 1;
1.28      schwarze  317:        offset = p->offset;
                    318:        rmargin = p->rmargin;
1.65      schwarze  319:        font = term_fontq(p);
1.1       kristaps  320:
1.63      schwarze  321:        memset(&npair, 0, sizeof(struct termpair));
1.1       kristaps  322:        npair.ppair = pair;
                    323:
1.93    ! schwarze  324:        if (MDOC_TEXT == n->type)
1.60      schwarze  325:                term_word(p, n->string);
1.93    ! schwarze  326:        else if (termacts[n->tok].pre && !n->end)
        !           327:                chld = (*termacts[n->tok].pre)(p, &npair, m, n);
1.65      schwarze  328:
1.60      schwarze  329:        if (chld && n->child)
1.65      schwarze  330:                print_mdoc_nodelist(p, &npair, m, n->child);
1.1       kristaps  331:
1.65      schwarze  332:        term_fontpopq(p, font);
1.1       kristaps  333:
1.93    ! schwarze  334:        if (MDOC_TEXT != n->type &&
        !           335:            termacts[n->tok].post &&
        !           336:            ! (MDOC_ENDED & n->flags)) {
        !           337:                (*termacts[n->tok].post)(p, &npair, m, n);
        !           338:
        !           339:                /*
        !           340:                 * Explicit end tokens not only call the post
        !           341:                 * handler, but also tell the respective block
        !           342:                 * that it must not call the post handler again.
        !           343:                 */
        !           344:                if (n->end)
        !           345:                        n->pending->flags |= MDOC_ENDED;
        !           346:
        !           347:                /*
        !           348:                 * End of line terminating an implicit block
        !           349:                 * while an explicit block is still open.
        !           350:                 * Continue the explicit block without spacing.
        !           351:                 */
        !           352:                if (ENDBODY_NOSPACE == n->end)
        !           353:                        p->flags |= TERMP_NOSPACE;
        !           354:        }
1.28      schwarze  355:
1.78      schwarze  356:        if (MDOC_EOS & n->flags)
                    357:                p->flags |= TERMP_SENTENCE;
                    358:
1.28      schwarze  359:        p->offset = offset;
                    360:        p->rmargin = rmargin;
1.1       kristaps  361: }
                    362:
                    363:
                    364: static void
1.87      schwarze  365: print_mdoc_foot(struct termp *p, const void *arg)
1.1       kristaps  366: {
1.63      schwarze  367:        char            buf[DATESIZ], os[BUFSIZ];
1.87      schwarze  368:        const struct mdoc_meta *m;
                    369:
                    370:        m = (const struct mdoc_meta *)arg;
1.1       kristaps  371:
1.65      schwarze  372:        term_fontrepl(p, TERMFONT_NONE);
                    373:
1.7       schwarze  374:        /*
                    375:         * Output the footer in new-groff style, that is, three columns
                    376:         * with the middle being the manual date and flanking columns
                    377:         * being the operating system:
                    378:         *
                    379:         * SYSTEM                  DATE                    SYSTEM
                    380:         */
                    381:
1.62      schwarze  382:        time2a(m->date, buf, DATESIZ);
1.63      schwarze  383:        strlcpy(os, m->os, BUFSIZ);
1.1       kristaps  384:
                    385:        term_vspace(p);
                    386:
1.7       schwarze  387:        p->offset = 0;
1.89      schwarze  388:        p->rmargin = (p->maxrmargin -
                    389:                        term_strlen(p, buf) + term_len(p, 1)) / 2;
1.1       kristaps  390:        p->flags |= TERMP_NOSPACE | TERMP_NOBREAK;
                    391:
                    392:        term_word(p, os);
                    393:        term_flushln(p);
                    394:
1.7       schwarze  395:        p->offset = p->rmargin;
1.89      schwarze  396:        p->rmargin = p->maxrmargin - term_strlen(p, os);
1.1       kristaps  397:        p->flags |= TERMP_NOLPAD | TERMP_NOSPACE;
1.7       schwarze  398:
                    399:        term_word(p, buf);
                    400:        term_flushln(p);
                    401:
1.1       kristaps  402:        p->offset = p->rmargin;
                    403:        p->rmargin = p->maxrmargin;
                    404:        p->flags &= ~TERMP_NOBREAK;
1.7       schwarze  405:        p->flags |= TERMP_NOLPAD | TERMP_NOSPACE;
1.1       kristaps  406:
1.7       schwarze  407:        term_word(p, os);
1.1       kristaps  408:        term_flushln(p);
1.7       schwarze  409:
                    410:        p->offset = 0;
                    411:        p->rmargin = p->maxrmargin;
                    412:        p->flags = 0;
1.1       kristaps  413: }
                    414:
                    415:
                    416: static void
1.87      schwarze  417: print_mdoc_head(struct termp *p, const void *arg)
1.1       kristaps  418: {
1.63      schwarze  419:        char            buf[BUFSIZ], title[BUFSIZ];
1.87      schwarze  420:        const struct mdoc_meta *m;
                    421:
                    422:        m = (const struct mdoc_meta *)arg;
1.1       kristaps  423:
                    424:        p->rmargin = p->maxrmargin;
                    425:        p->offset = 0;
                    426:
                    427:        /*
                    428:         * The header is strange.  It has three components, which are
                    429:         * really two with the first duplicated.  It goes like this:
                    430:         *
                    431:         * IDENTIFIER              TITLE                   IDENTIFIER
                    432:         *
                    433:         * The IDENTIFIER is NAME(SECTION), which is the command-name
                    434:         * (if given, or "unknown" if not) followed by the manual page
                    435:         * section.  These are given in `Dt'.  The TITLE is a free-form
                    436:         * string depending on the manual volume.  If not specified, it
                    437:         * switches on the manual section.
                    438:         */
                    439:
1.60      schwarze  440:        assert(m->vol);
1.63      schwarze  441:        strlcpy(buf, m->vol, BUFSIZ);
1.1       kristaps  442:
1.60      schwarze  443:        if (m->arch) {
1.63      schwarze  444:                strlcat(buf, " (", BUFSIZ);
                    445:                strlcat(buf, m->arch, BUFSIZ);
                    446:                strlcat(buf, ")", BUFSIZ);
1.1       kristaps  447:        }
                    448:
1.79      schwarze  449:        snprintf(title, BUFSIZ, "%s(%s)", m->title, m->msec);
1.1       kristaps  450:
                    451:        p->offset = 0;
1.89      schwarze  452:        p->rmargin = (p->maxrmargin -
                    453:                        term_strlen(p, buf) + term_len(p, 1)) / 2;
1.1       kristaps  454:        p->flags |= TERMP_NOBREAK | TERMP_NOSPACE;
                    455:
                    456:        term_word(p, title);
                    457:        term_flushln(p);
                    458:
                    459:        p->offset = p->rmargin;
1.89      schwarze  460:        p->rmargin = p->maxrmargin - term_strlen(p, title);
1.8       schwarze  461:        p->flags |= TERMP_NOLPAD | TERMP_NOSPACE;
1.1       kristaps  462:
                    463:        term_word(p, buf);
                    464:        term_flushln(p);
                    465:
                    466:        p->offset = p->rmargin;
                    467:        p->rmargin = p->maxrmargin;
                    468:        p->flags &= ~TERMP_NOBREAK;
                    469:        p->flags |= TERMP_NOLPAD | TERMP_NOSPACE;
                    470:
                    471:        term_word(p, title);
                    472:        term_flushln(p);
                    473:
1.8       schwarze  474:        p->offset = 0;
1.1       kristaps  475:        p->rmargin = p->maxrmargin;
                    476:        p->flags &= ~TERMP_NOSPACE;
                    477: }
                    478:
                    479:
                    480: static size_t
1.89      schwarze  481: a2height(const struct termp *p, const char *v)
1.1       kristaps  482: {
1.61      schwarze  483:        struct roffsu    su;
1.1       kristaps  484:
1.89      schwarze  485:        assert(v);
                    486:        if ( ! a2roffsu(v, &su, SCALE_VS))
                    487:                SCALE_VS_INIT(&su, term_len(p, 1));
1.1       kristaps  488:
1.89      schwarze  489:        return(term_vspan(p, &su));
1.61      schwarze  490: }
1.34      schwarze  491:
1.1       kristaps  492:
1.61      schwarze  493: static size_t
1.89      schwarze  494: a2width(const struct termp *p, const char *v)
1.61      schwarze  495: {
                    496:        struct roffsu    su;
1.1       kristaps  497:
1.88      schwarze  498:        assert(v);
                    499:        if ( ! a2roffsu(v, &su, SCALE_MAX))
1.89      schwarze  500:                SCALE_HS_INIT(&su, term_strlen(p, v));
1.1       kristaps  501:
1.89      schwarze  502:        return(term_hspan(p, &su));
1.1       kristaps  503: }
                    504:
                    505:
                    506: static size_t
1.89      schwarze  507: a2offs(const struct termp *p, const char *v)
1.1       kristaps  508: {
1.61      schwarze  509:        struct roffsu    su;
1.1       kristaps  510:
1.88      schwarze  511:        if ('\0' == *v)
1.61      schwarze  512:                return(0);
1.88      schwarze  513:        else if (0 == strcmp(v, "left"))
1.9       schwarze  514:                return(0);
1.88      schwarze  515:        else if (0 == strcmp(v, "indent"))
1.89      schwarze  516:                return(term_len(p, INDENT + 1));
1.88      schwarze  517:        else if (0 == strcmp(v, "indent-two"))
1.89      schwarze  518:                return(term_len(p, (INDENT + 1) * 2));
1.88      schwarze  519:        else if ( ! a2roffsu(v, &su, SCALE_MAX))
1.89      schwarze  520:                SCALE_HS_INIT(&su, term_strlen(p, v));
1.10      schwarze  521:
1.89      schwarze  522:        return(term_hspan(p, &su));
1.1       kristaps  523: }
                    524:
                    525:
1.68      schwarze  526: /*
                    527:  * Return 1 if an argument has a particular argument value or 0 if it
                    528:  * does not.  See arg_getattr().
                    529:  */
1.1       kristaps  530: static int
                    531: arg_hasattr(int arg, const struct mdoc_node *n)
                    532: {
                    533:
                    534:        return(-1 != arg_getattr(arg, n));
                    535: }
                    536:
                    537:
1.68      schwarze  538: /*
                    539:  * Get the index of an argument in a node's argument list or -1 if it
1.88      schwarze  540:  * does not exist.
1.68      schwarze  541:  */
1.1       kristaps  542: static int
                    543: arg_getattr(int v, const struct mdoc_node *n)
                    544: {
1.88      schwarze  545:        int              i;
1.1       kristaps  546:
                    547:        if (NULL == n->args)
                    548:                return(0);
                    549:
1.88      schwarze  550:        for (i = 0; i < (int)n->args->argc; i++)
                    551:                if (n->args->argv[i].arg == v)
                    552:                        return(i);
                    553:
                    554:        return(-1);
1.1       kristaps  555: }
                    556:
                    557:
1.68      schwarze  558: /*
                    559:  * Determine how much space to print out before block elements of `It'
                    560:  * (and thus `Bl') and `Bd'.  And then go ahead and print that space,
                    561:  * too.
                    562:  */
1.45      schwarze  563: static void
1.61      schwarze  564: print_bvspace(struct termp *p,
1.1       kristaps  565:                const struct mdoc_node *bl,
1.60      schwarze  566:                const struct mdoc_node *n)
1.1       kristaps  567: {
1.60      schwarze  568:        const struct mdoc_node  *nn;
1.1       kristaps  569:
                    570:        term_newln(p);
1.88      schwarze  571:
                    572:        if (MDOC_Bd == bl->tok && bl->data.Bd.comp)
                    573:                return;
                    574:        if (MDOC_Bl == bl->tok && bl->data.Bl.comp)
1.45      schwarze  575:                return;
                    576:
1.60      schwarze  577:        /* Do not vspace directly after Ss/Sh. */
1.1       kristaps  578:
1.60      schwarze  579:        for (nn = n; nn; nn = nn->parent) {
                    580:                if (MDOC_BLOCK != nn->type)
1.1       kristaps  581:                        continue;
1.60      schwarze  582:                if (MDOC_Ss == nn->tok)
1.45      schwarze  583:                        return;
1.60      schwarze  584:                if (MDOC_Sh == nn->tok)
1.45      schwarze  585:                        return;
1.60      schwarze  586:                if (NULL == nn->prev)
1.1       kristaps  587:                        continue;
                    588:                break;
                    589:        }
                    590:
1.60      schwarze  591:        /* A `-column' does not assert vspace within the list. */
1.45      schwarze  592:
1.88      schwarze  593:        if (MDOC_Bl == bl->tok && LIST_column == bl->data.Bl.type)
1.60      schwarze  594:                if (n->prev && MDOC_It == n->prev->tok)
1.45      schwarze  595:                        return;
                    596:
1.60      schwarze  597:        /* A `-diag' without body does not vspace. */
                    598:
1.88      schwarze  599:        if (MDOC_Bl == bl->tok && LIST_diag == bl->data.Bl.type)
1.60      schwarze  600:                if (n->prev && MDOC_It == n->prev->tok) {
                    601:                        assert(n->prev->body);
                    602:                        if (NULL == n->prev->body->child)
1.45      schwarze  603:                                return;
                    604:                }
                    605:
                    606:        term_vspace(p);
1.1       kristaps  607: }
                    608:
                    609:
                    610: /* ARGSUSED */
                    611: static int
                    612: termp_dq_pre(DECL_ARGS)
                    613: {
                    614:
1.60      schwarze  615:        if (MDOC_BODY != n->type)
1.1       kristaps  616:                return(1);
                    617:
                    618:        term_word(p, "\\(lq");
                    619:        p->flags |= TERMP_NOSPACE;
                    620:        return(1);
                    621: }
                    622:
                    623:
                    624: /* ARGSUSED */
                    625: static void
                    626: termp_dq_post(DECL_ARGS)
                    627: {
                    628:
1.60      schwarze  629:        if (MDOC_BODY != n->type)
1.1       kristaps  630:                return;
                    631:
                    632:        p->flags |= TERMP_NOSPACE;
                    633:        term_word(p, "\\(rq");
                    634: }
                    635:
                    636:
                    637: /* ARGSUSED */
                    638: static int
                    639: termp_it_pre(DECL_ARGS)
                    640: {
1.60      schwarze  641:        const struct mdoc_node *bl, *nn;
1.1       kristaps  642:        char                    buf[7];
1.88      schwarze  643:        int                     i, col;
1.68      schwarze  644:        size_t                  width, offset, ncols, dcol;
1.82      schwarze  645:        enum mdoc_list          type;
1.1       kristaps  646:
1.60      schwarze  647:        if (MDOC_BLOCK == n->type) {
1.61      schwarze  648:                print_bvspace(p, n->parent->parent, n);
1.45      schwarze  649:                return(1);
                    650:        }
1.1       kristaps  651:
1.60      schwarze  652:        bl = n->parent->parent->parent;
1.88      schwarze  653:        type = bl->data.Bl.type;
1.1       kristaps  654:
1.68      schwarze  655:        /*
                    656:         * First calculate width and offset.  This is pretty easy unless
                    657:         * we're a -column list, in which case all prior columns must
                    658:         * be accounted for.
                    659:         */
                    660:
                    661:        width = offset = 0;
                    662:
1.88      schwarze  663:        if (bl->data.Bl.offs)
1.89      schwarze  664:                offset = a2offs(p, bl->data.Bl.offs);
1.66      schwarze  665:
1.1       kristaps  666:        switch (type) {
1.82      schwarze  667:        case (LIST_column):
1.85      schwarze  668:                if (MDOC_HEAD == n->type)
1.1       kristaps  669:                        break;
1.88      schwarze  670:
                    671:                col = arg_getattr(MDOC_Column, bl);
                    672:
1.66      schwarze  673:                /*
1.68      schwarze  674:                 * Imitate groff's column handling:
                    675:                 * - For each earlier column, add its width.
                    676:                 * - For less than 5 columns, add four more blanks per
                    677:                 *   column.
                    678:                 * - For exactly 5 columns, add three more blank per
                    679:                 *   column.
                    680:                 * - For more than 5 columns, add only one column.
1.66      schwarze  681:                 */
1.88      schwarze  682:                ncols = bl->args->argv[col].sz;
1.68      schwarze  683:                /* LINTED */
1.89      schwarze  684:                dcol = ncols < 5 ? term_len(p, 4) :
                    685:                        ncols == 5 ? term_len(p, 3) : term_len(p, 1);
1.68      schwarze  686:
1.85      schwarze  687:                /*
                    688:                 * Calculate the offset by applying all prior MDOC_BODY,
                    689:                 * so we stop at the MDOC_HEAD (NULL == nn->prev).
                    690:                 */
                    691:
1.68      schwarze  692:                for (i = 0, nn = n->prev;
1.85      schwarze  693:                                nn->prev && i < (int)ncols;
1.68      schwarze  694:                                nn = nn->prev, i++)
                    695:                        offset += dcol + a2width
1.89      schwarze  696:                                (p, bl->args->argv[col].value[i]);
1.66      schwarze  697:
                    698:                /*
1.68      schwarze  699:                 * When exceeding the declared number of columns, leave
                    700:                 * the remaining widths at 0.  This will later be
                    701:                 * adjusted to the default width of 10, or, for the last
                    702:                 * column, stretched to the right margin.
1.46      schwarze  703:                 */
1.68      schwarze  704:                if (i >= (int)ncols)
                    705:                        break;
1.46      schwarze  706:
1.66      schwarze  707:                /*
1.68      schwarze  708:                 * Use the declared column widths, extended as explained
                    709:                 * in the preceding paragraph.
1.66      schwarze  710:                 */
1.89      schwarze  711:                width = a2width(p, bl->args->argv[col].value[i]) + dcol;
1.1       kristaps  712:                break;
                    713:        default:
1.88      schwarze  714:                if (NULL == bl->data.Bl.width)
1.68      schwarze  715:                        break;
                    716:
                    717:                /*
                    718:                 * Note: buffer the width by 2, which is groff's magic
                    719:                 * number for buffering single arguments.  See the above
                    720:                 * handling for column for how this changes.
                    721:                 */
1.88      schwarze  722:                assert(bl->data.Bl.width);
1.89      schwarze  723:                width = a2width(p, bl->data.Bl.width) + term_len(p, 2);
1.1       kristaps  724:                break;
                    725:        }
                    726:
                    727:        /*
                    728:         * List-type can override the width in the case of fixed-head
                    729:         * values (bullet, dash/hyphen, enum).  Tags need a non-zero
1.53      schwarze  730:         * offset.
1.1       kristaps  731:         */
                    732:
                    733:        switch (type) {
1.82      schwarze  734:        case (LIST_bullet):
1.1       kristaps  735:                /* FALLTHROUGH */
1.82      schwarze  736:        case (LIST_dash):
1.1       kristaps  737:                /* FALLTHROUGH */
1.82      schwarze  738:        case (LIST_hyphen):
1.89      schwarze  739:                if (width < term_len(p, 4))
                    740:                        width = term_len(p, 4);
1.19      schwarze  741:                break;
1.82      schwarze  742:        case (LIST_enum):
1.89      schwarze  743:                if (width < term_len(p, 5))
                    744:                        width = term_len(p, 5);
1.1       kristaps  745:                break;
1.82      schwarze  746:        case (LIST_hang):
1.33      schwarze  747:                if (0 == width)
1.89      schwarze  748:                        width = term_len(p, 8);
1.33      schwarze  749:                break;
1.82      schwarze  750:        case (LIST_column):
1.41      schwarze  751:                /* FALLTHROUGH */
1.82      schwarze  752:        case (LIST_tag):
1.1       kristaps  753:                if (0 == width)
1.89      schwarze  754:                        width = term_len(p, 10);
1.1       kristaps  755:                break;
                    756:        default:
                    757:                break;
                    758:        }
                    759:
                    760:        /*
1.16      schwarze  761:         * Whitespace control.  Inset bodies need an initial space,
                    762:         * while diagonal bodies need two.
1.1       kristaps  763:         */
                    764:
1.42      schwarze  765:        p->flags |= TERMP_NOSPACE;
                    766:
1.1       kristaps  767:        switch (type) {
1.82      schwarze  768:        case (LIST_diag):
1.60      schwarze  769:                if (MDOC_BODY == n->type)
1.48      schwarze  770:                        term_word(p, "\\ \\ ");
1.42      schwarze  771:                break;
1.82      schwarze  772:        case (LIST_inset):
1.60      schwarze  773:                if (MDOC_BODY == n->type)
1.42      schwarze  774:                        term_word(p, "\\ ");
1.1       kristaps  775:                break;
                    776:        default:
                    777:                break;
                    778:        }
                    779:
1.42      schwarze  780:        p->flags |= TERMP_NOSPACE;
                    781:
1.1       kristaps  782:        switch (type) {
1.82      schwarze  783:        case (LIST_diag):
1.60      schwarze  784:                if (MDOC_HEAD == n->type)
1.65      schwarze  785:                        term_fontpush(p, TERMFONT_BOLD);
1.1       kristaps  786:                break;
                    787:        default:
                    788:                break;
                    789:        }
                    790:
                    791:        /*
1.68      schwarze  792:         * Pad and break control.  This is the tricky part.  These flags
                    793:         * are documented in term_flushln() in term.c.  Note that we're
                    794:         * going to unset all of these flags in termp_it_post() when we
                    795:         * exit.
1.1       kristaps  796:         */
                    797:
                    798:        switch (type) {
1.82      schwarze  799:        case (LIST_bullet):
1.1       kristaps  800:                /* FALLTHROUGH */
1.82      schwarze  801:        case (LIST_dash):
1.1       kristaps  802:                /* FALLTHROUGH */
1.82      schwarze  803:        case (LIST_enum):
1.1       kristaps  804:                /* FALLTHROUGH */
1.82      schwarze  805:        case (LIST_hyphen):
1.60      schwarze  806:                if (MDOC_HEAD == n->type)
1.33      schwarze  807:                        p->flags |= TERMP_NOBREAK;
                    808:                else
                    809:                        p->flags |= TERMP_NOLPAD;
                    810:                break;
1.82      schwarze  811:        case (LIST_hang):
1.60      schwarze  812:                if (MDOC_HEAD == n->type)
1.33      schwarze  813:                        p->flags |= TERMP_NOBREAK;
                    814:                else
                    815:                        p->flags |= TERMP_NOLPAD;
                    816:
1.60      schwarze  817:                if (MDOC_HEAD != n->type)
1.47      schwarze  818:                        break;
                    819:
                    820:                /*
                    821:                 * This is ugly.  If `-hang' is specified and the body
                    822:                 * is a `Bl' or `Bd', then we want basically to nullify
                    823:                 * the "overstep" effect in term_flushln() and treat
                    824:                 * this as a `-ohang' list instead.
                    825:                 */
1.60      schwarze  826:                if (n->next->child &&
                    827:                                (MDOC_Bl == n->next->child->tok ||
                    828:                                 MDOC_Bd == n->next->child->tok)) {
1.47      schwarze  829:                        p->flags &= ~TERMP_NOBREAK;
                    830:                        p->flags &= ~TERMP_NOLPAD;
                    831:                } else
1.33      schwarze  832:                        p->flags |= TERMP_HANG;
                    833:                break;
1.82      schwarze  834:        case (LIST_tag):
1.60      schwarze  835:                if (MDOC_HEAD == n->type)
1.42      schwarze  836:                        p->flags |= TERMP_NOBREAK | TERMP_TWOSPACE;
1.1       kristaps  837:                else
                    838:                        p->flags |= TERMP_NOLPAD;
1.33      schwarze  839:
1.60      schwarze  840:                if (MDOC_HEAD != n->type)
1.33      schwarze  841:                        break;
1.60      schwarze  842:                if (NULL == n->next || NULL == n->next->child)
1.33      schwarze  843:                        p->flags |= TERMP_DANGLE;
1.1       kristaps  844:                break;
1.82      schwarze  845:        case (LIST_column):
1.85      schwarze  846:                if (MDOC_HEAD == n->type)
                    847:                        break;
                    848:
                    849:                if (NULL == n->next)
                    850:                        p->flags &= ~TERMP_NOBREAK;
                    851:                else
                    852:                        p->flags |= TERMP_NOBREAK;
                    853:
                    854:                assert(n->prev);
                    855:                if (MDOC_BODY == n->prev->type)
                    856:                        p->flags |= TERMP_NOLPAD;
                    857:
1.1       kristaps  858:                break;
1.82      schwarze  859:        case (LIST_diag):
1.60      schwarze  860:                if (MDOC_HEAD == n->type)
1.1       kristaps  861:                        p->flags |= TERMP_NOBREAK;
                    862:                break;
                    863:        default:
                    864:                break;
                    865:        }
                    866:
                    867:        /*
                    868:         * Margin control.  Set-head-width lists have their right
                    869:         * margins shortened.  The body for these lists has the offset
                    870:         * necessarily lengthened.  Everybody gets the offset.
                    871:         */
                    872:
                    873:        p->offset += offset;
                    874:
                    875:        switch (type) {
1.82      schwarze  876:        case (LIST_hang):
1.47      schwarze  877:                /*
                    878:                 * Same stipulation as above, regarding `-hang'.  We
                    879:                 * don't want to recalculate rmargin and offsets when
                    880:                 * using `Bd' or `Bl' within `-hang' overstep lists.
                    881:                 */
1.60      schwarze  882:                if (MDOC_HEAD == n->type && n->next->child &&
                    883:                                (MDOC_Bl == n->next->child->tok ||
                    884:                                 MDOC_Bd == n->next->child->tok))
1.47      schwarze  885:                        break;
                    886:                /* FALLTHROUGH */
1.82      schwarze  887:        case (LIST_bullet):
1.1       kristaps  888:                /* FALLTHROUGH */
1.82      schwarze  889:        case (LIST_dash):
1.1       kristaps  890:                /* FALLTHROUGH */
1.82      schwarze  891:        case (LIST_enum):
1.1       kristaps  892:                /* FALLTHROUGH */
1.82      schwarze  893:        case (LIST_hyphen):
1.33      schwarze  894:                /* FALLTHROUGH */
1.82      schwarze  895:        case (LIST_tag):
1.41      schwarze  896:                assert(width);
1.60      schwarze  897:                if (MDOC_HEAD == n->type)
1.1       kristaps  898:                        p->rmargin = p->offset + width;
                    899:                else
                    900:                        p->offset += width;
                    901:                break;
1.82      schwarze  902:        case (LIST_column):
1.41      schwarze  903:                assert(width);
1.1       kristaps  904:                p->rmargin = p->offset + width;
1.43      schwarze  905:                /*
                    906:                 * XXX - this behaviour is not documented: the
                    907:                 * right-most column is filled to the right margin.
                    908:                 */
1.85      schwarze  909:                if (MDOC_HEAD == n->type)
                    910:                        break;
                    911:                if (NULL == n->next && p->rmargin < p->maxrmargin)
1.43      schwarze  912:                        p->rmargin = p->maxrmargin;
1.1       kristaps  913:                break;
                    914:        default:
                    915:                break;
                    916:        }
                    917:
                    918:        /*
                    919:         * The dash, hyphen, bullet and enum lists all have a special
1.12      schwarze  920:         * HEAD character (temporarily bold, in some cases).
1.1       kristaps  921:         */
                    922:
1.60      schwarze  923:        if (MDOC_HEAD == n->type)
1.1       kristaps  924:                switch (type) {
1.82      schwarze  925:                case (LIST_bullet):
1.65      schwarze  926:                        term_fontpush(p, TERMFONT_BOLD);
1.1       kristaps  927:                        term_word(p, "\\[bu]");
1.65      schwarze  928:                        term_fontpop(p);
1.1       kristaps  929:                        break;
1.82      schwarze  930:                case (LIST_dash):
1.1       kristaps  931:                        /* FALLTHROUGH */
1.82      schwarze  932:                case (LIST_hyphen):
1.65      schwarze  933:                        term_fontpush(p, TERMFONT_BOLD);
1.35      schwarze  934:                        term_word(p, "\\(hy");
1.65      schwarze  935:                        term_fontpop(p);
1.1       kristaps  936:                        break;
1.82      schwarze  937:                case (LIST_enum):
1.1       kristaps  938:                        (pair->ppair->ppair->count)++;
1.68      schwarze  939:                        snprintf(buf, sizeof(buf), "%d.",
1.1       kristaps  940:                                        pair->ppair->ppair->count);
                    941:                        term_word(p, buf);
                    942:                        break;
                    943:                default:
                    944:                        break;
                    945:                }
1.12      schwarze  946:
1.1       kristaps  947:        /*
                    948:         * If we're not going to process our children, indicate so here.
                    949:         */
                    950:
                    951:        switch (type) {
1.82      schwarze  952:        case (LIST_bullet):
1.1       kristaps  953:                /* FALLTHROUGH */
1.82      schwarze  954:        case (LIST_item):
1.1       kristaps  955:                /* FALLTHROUGH */
1.82      schwarze  956:        case (LIST_dash):
1.1       kristaps  957:                /* FALLTHROUGH */
1.82      schwarze  958:        case (LIST_hyphen):
1.1       kristaps  959:                /* FALLTHROUGH */
1.82      schwarze  960:        case (LIST_enum):
1.60      schwarze  961:                if (MDOC_HEAD == n->type)
1.1       kristaps  962:                        return(0);
                    963:                break;
1.82      schwarze  964:        case (LIST_column):
1.85      schwarze  965:                if (MDOC_HEAD == n->type)
1.1       kristaps  966:                        return(0);
                    967:                break;
                    968:        default:
                    969:                break;
                    970:        }
                    971:
                    972:        return(1);
                    973: }
                    974:
                    975:
                    976: /* ARGSUSED */
                    977: static void
                    978: termp_it_post(DECL_ARGS)
                    979: {
1.82      schwarze  980:        enum mdoc_list     type;
1.1       kristaps  981:
1.68      schwarze  982:        if (MDOC_BLOCK == n->type)
1.1       kristaps  983:                return;
                    984:
1.88      schwarze  985:        type = n->parent->parent->parent->data.Bl.type;
1.1       kristaps  986:
                    987:        switch (type) {
1.82      schwarze  988:        case (LIST_item):
1.44      schwarze  989:                /* FALLTHROUGH */
1.82      schwarze  990:        case (LIST_diag):
1.1       kristaps  991:                /* FALLTHROUGH */
1.82      schwarze  992:        case (LIST_inset):
1.60      schwarze  993:                if (MDOC_BODY == n->type)
1.74      schwarze  994:                        term_newln(p);
1.1       kristaps  995:                break;
1.82      schwarze  996:        case (LIST_column):
1.85      schwarze  997:                if (MDOC_BODY == n->type)
1.1       kristaps  998:                        term_flushln(p);
                    999:                break;
                   1000:        default:
1.74      schwarze 1001:                term_newln(p);
1.1       kristaps 1002:                break;
                   1003:        }
                   1004:
1.68      schwarze 1005:        /*
                   1006:         * Now that our output is flushed, we can reset our tags.  Since
                   1007:         * only `It' sets these flags, we're free to assume that nobody
                   1008:         * has munged them in the meanwhile.
                   1009:         */
                   1010:
                   1011:        p->flags &= ~TERMP_DANGLE;
                   1012:        p->flags &= ~TERMP_NOBREAK;
                   1013:        p->flags &= ~TERMP_TWOSPACE;
                   1014:        p->flags &= ~TERMP_NOLPAD;
                   1015:        p->flags &= ~TERMP_HANG;
1.1       kristaps 1016: }
                   1017:
                   1018:
                   1019: /* ARGSUSED */
                   1020: static int
                   1021: termp_nm_pre(DECL_ARGS)
                   1022: {
                   1023:
1.81      schwarze 1024:        if (NULL == n->child && NULL == m->name)
1.83      schwarze 1025:                return(1);
1.81      schwarze 1026:
1.86      schwarze 1027:        synopsis_pre(p, n);
1.65      schwarze 1028:
                   1029:        term_fontpush(p, TERMFONT_BOLD);
1.60      schwarze 1030:        if (NULL == n->child)
                   1031:                term_word(p, m->name);
1.1       kristaps 1032:        return(1);
                   1033: }
                   1034:
                   1035:
                   1036: /* ARGSUSED */
                   1037: static int
                   1038: termp_fl_pre(DECL_ARGS)
                   1039: {
                   1040:
1.65      schwarze 1041:        term_fontpush(p, TERMFONT_BOLD);
1.1       kristaps 1042:        term_word(p, "\\-");
1.67      schwarze 1043:
                   1044:        if (n->child)
                   1045:                p->flags |= TERMP_NOSPACE;
1.73      schwarze 1046:        else if (n->next && n->next->line == n->line)
                   1047:                p->flags |= TERMP_NOSPACE;
1.67      schwarze 1048:
1.1       kristaps 1049:        return(1);
1.49      schwarze 1050: }
                   1051:
                   1052:
                   1053: /* ARGSUSED */
                   1054: static int
                   1055: termp_an_pre(DECL_ARGS)
                   1056: {
                   1057:
1.60      schwarze 1058:        if (NULL == n->child)
1.49      schwarze 1059:                return(1);
                   1060:
                   1061:        /*
1.60      schwarze 1062:         * If not in the AUTHORS section, `An -split' will cause
                   1063:         * newlines to occur before the author name.  If in the AUTHORS
                   1064:         * section, by default, the first `An' invocation is nosplit,
                   1065:         * then all subsequent ones, regardless of whether interspersed
                   1066:         * with other macros/text, are split.  -split, in this case,
                   1067:         * will override the condition of the implied first -nosplit.
1.49      schwarze 1068:         */
                   1069:
1.60      schwarze 1070:        if (n->sec == SEC_AUTHORS) {
1.49      schwarze 1071:                if ( ! (TERMP_ANPREC & p->flags)) {
                   1072:                        if (TERMP_SPLIT & p->flags)
                   1073:                                term_newln(p);
                   1074:                        return(1);
                   1075:                }
                   1076:                if (TERMP_NOSPLIT & p->flags)
                   1077:                        return(1);
                   1078:                term_newln(p);
                   1079:                return(1);
                   1080:        }
                   1081:
                   1082:        if (TERMP_SPLIT & p->flags)
                   1083:                term_newln(p);
                   1084:
                   1085:        return(1);
                   1086: }
                   1087:
                   1088:
                   1089: /* ARGSUSED */
                   1090: static void
                   1091: termp_an_post(DECL_ARGS)
                   1092: {
                   1093:
1.60      schwarze 1094:        if (n->child) {
                   1095:                if (SEC_AUTHORS == n->sec)
1.49      schwarze 1096:                        p->flags |= TERMP_ANPREC;
                   1097:                return;
                   1098:        }
                   1099:
1.77      schwarze 1100:        if (arg_hasattr(MDOC_Split, n)) {
1.49      schwarze 1101:                p->flags &= ~TERMP_NOSPLIT;
                   1102:                p->flags |= TERMP_SPLIT;
                   1103:        } else {
                   1104:                p->flags &= ~TERMP_SPLIT;
                   1105:                p->flags |= TERMP_NOSPLIT;
                   1106:        }
                   1107:
1.1       kristaps 1108: }
                   1109:
                   1110:
                   1111: /* ARGSUSED */
                   1112: static int
                   1113: termp_ns_pre(DECL_ARGS)
                   1114: {
                   1115:
                   1116:        p->flags |= TERMP_NOSPACE;
                   1117:        return(1);
                   1118: }
                   1119:
                   1120:
                   1121: /* ARGSUSED */
                   1122: static int
                   1123: termp_rs_pre(DECL_ARGS)
                   1124: {
                   1125:
1.60      schwarze 1126:        if (SEC_SEE_ALSO != n->sec)
1.57      schwarze 1127:                return(1);
1.60      schwarze 1128:        if (MDOC_BLOCK == n->type && n->prev)
1.1       kristaps 1129:                term_vspace(p);
                   1130:        return(1);
                   1131: }
                   1132:
                   1133:
                   1134: /* ARGSUSED */
                   1135: static int
                   1136: termp_rv_pre(DECL_ARGS)
                   1137: {
1.53      schwarze 1138:        const struct mdoc_node  *nn;
1.1       kristaps 1139:
                   1140:        term_newln(p);
                   1141:        term_word(p, "The");
                   1142:
1.60      schwarze 1143:        for (nn = n->child; nn; nn = nn->next) {
1.65      schwarze 1144:                term_fontpush(p, TERMFONT_BOLD);
1.53      schwarze 1145:                term_word(p, nn->string);
1.65      schwarze 1146:                term_fontpop(p);
1.53      schwarze 1147:                p->flags |= TERMP_NOSPACE;
                   1148:                if (nn->next && NULL == nn->next->next)
                   1149:                        term_word(p, "(), and");
                   1150:                else if (nn->next)
                   1151:                        term_word(p, "(),");
                   1152:                else
                   1153:                        term_word(p, "()");
                   1154:        }
                   1155:
1.81      schwarze 1156:        if (n->child && n->child->next)
1.53      schwarze 1157:                term_word(p, "functions return");
                   1158:        else
                   1159:                term_word(p, "function returns");
1.1       kristaps 1160:
1.53      schwarze 1161:                term_word(p, "the value 0 if successful; otherwise the value "
                   1162:                        "-1 is returned and the global variable");
1.1       kristaps 1163:
1.65      schwarze 1164:        term_fontpush(p, TERMFONT_UNDER);
1.1       kristaps 1165:        term_word(p, "errno");
1.65      schwarze 1166:        term_fontpop(p);
1.1       kristaps 1167:
                   1168:                term_word(p, "is set to indicate the error.");
1.84      schwarze 1169:        p->flags |= TERMP_SENTENCE;
1.1       kristaps 1170:
1.53      schwarze 1171:        return(0);
1.1       kristaps 1172: }
                   1173:
                   1174:
                   1175: /* ARGSUSED */
                   1176: static int
                   1177: termp_ex_pre(DECL_ARGS)
                   1178: {
1.53      schwarze 1179:        const struct mdoc_node  *nn;
1.1       kristaps 1180:
1.53      schwarze 1181:        term_word(p, "The");
1.1       kristaps 1182:
1.60      schwarze 1183:        for (nn = n->child; nn; nn = nn->next) {
1.65      schwarze 1184:                term_fontpush(p, TERMFONT_BOLD);
1.53      schwarze 1185:                term_word(p, nn->string);
1.65      schwarze 1186:                term_fontpop(p);
1.53      schwarze 1187:                p->flags |= TERMP_NOSPACE;
                   1188:                if (nn->next && NULL == nn->next->next)
                   1189:                        term_word(p, ", and");
                   1190:                else if (nn->next)
                   1191:                        term_word(p, ",");
                   1192:                else
                   1193:                        p->flags &= ~TERMP_NOSPACE;
                   1194:        }
                   1195:
1.81      schwarze 1196:        if (n->child && n->child->next)
1.53      schwarze 1197:                term_word(p, "utilities exit");
                   1198:        else
                   1199:                term_word(p, "utility exits");
                   1200:
                   1201:                term_word(p, "0 on success, and >0 if an error occurs.");
1.84      schwarze 1202:        p->flags |= TERMP_SENTENCE;
1.1       kristaps 1203:
1.53      schwarze 1204:        return(0);
1.1       kristaps 1205: }
                   1206:
                   1207:
                   1208: /* ARGSUSED */
                   1209: static int
                   1210: termp_nd_pre(DECL_ARGS)
                   1211: {
1.25      schwarze 1212:
1.60      schwarze 1213:        if (MDOC_BODY != n->type)
1.25      schwarze 1214:                return(1);
                   1215:
                   1216: #if defined(__OpenBSD__) || defined(__linux__)
                   1217:        term_word(p, "\\(en");
1.24      schwarze 1218: #else
                   1219:        term_word(p, "\\(em");
                   1220: #endif
1.1       kristaps 1221:        return(1);
                   1222: }
                   1223:
                   1224:
                   1225: /* ARGSUSED */
1.73      schwarze 1226: static int
                   1227: termp_bl_pre(DECL_ARGS)
                   1228: {
                   1229:
                   1230:        return(MDOC_HEAD != n->type);
                   1231: }
                   1232:
                   1233:
                   1234: /* ARGSUSED */
1.1       kristaps 1235: static void
                   1236: termp_bl_post(DECL_ARGS)
                   1237: {
                   1238:
1.60      schwarze 1239:        if (MDOC_BLOCK == n->type)
1.1       kristaps 1240:                term_newln(p);
                   1241: }
                   1242:
                   1243:
                   1244: /* ARGSUSED */
                   1245: static void
                   1246: termp_op_post(DECL_ARGS)
                   1247: {
                   1248:
1.60      schwarze 1249:        if (MDOC_BODY != n->type)
1.1       kristaps 1250:                return;
                   1251:        p->flags |= TERMP_NOSPACE;
                   1252:        term_word(p, "\\(rB");
                   1253: }
                   1254:
                   1255:
                   1256: /* ARGSUSED */
                   1257: static int
                   1258: termp_xr_pre(DECL_ARGS)
                   1259: {
1.60      schwarze 1260:        const struct mdoc_node *nn;
1.1       kristaps 1261:
1.72      schwarze 1262:        if (NULL == n->child)
                   1263:                return(0);
                   1264:
                   1265:        assert(MDOC_TEXT == n->child->type);
1.60      schwarze 1266:        nn = n->child;
1.10      schwarze 1267:
1.60      schwarze 1268:        term_word(p, nn->string);
                   1269:        if (NULL == (nn = nn->next))
1.1       kristaps 1270:                return(0);
                   1271:        p->flags |= TERMP_NOSPACE;
                   1272:        term_word(p, "(");
                   1273:        p->flags |= TERMP_NOSPACE;
1.60      schwarze 1274:        term_word(p, nn->string);
1.1       kristaps 1275:        p->flags |= TERMP_NOSPACE;
                   1276:        term_word(p, ")");
1.60      schwarze 1277:
1.1       kristaps 1278:        return(0);
                   1279: }
                   1280:
                   1281:
1.86      schwarze 1282: /*
                   1283:  * This decides how to assert whitespace before any of the SYNOPSIS set
                   1284:  * of macros (which, as in the case of Ft/Fo and Ft/Fn, may contain
                   1285:  * macro combos).
                   1286:  */
                   1287: static void
                   1288: synopsis_pre(struct termp *p, const struct mdoc_node *n)
                   1289: {
                   1290:        /*
                   1291:         * Obviously, if we're not in a SYNOPSIS or no prior macros
                   1292:         * exist, do nothing.
                   1293:         */
1.92      schwarze 1294:        if (NULL == n->prev || ! (MDOC_SYNPRETTY & n->flags))
1.86      schwarze 1295:                return;
                   1296:
                   1297:        /*
                   1298:         * If we're the second in a pair of like elements, emit our
                   1299:         * newline and return.  UNLESS we're `Fo', `Fn', `Fn', in which
                   1300:         * case we soldier on.
                   1301:         */
                   1302:        if (n->prev->tok == n->tok &&
                   1303:                        MDOC_Ft != n->tok &&
                   1304:                        MDOC_Fo != n->tok &&
                   1305:                        MDOC_Fn != n->tok) {
                   1306:                term_newln(p);
                   1307:                return;
                   1308:        }
                   1309:
                   1310:        /*
                   1311:         * If we're one of the SYNOPSIS set and non-like pair-wise after
                   1312:         * another (or Fn/Fo, which we've let slip through) then assert
                   1313:         * vertical space, else only newline and move on.
                   1314:         */
                   1315:        switch (n->prev->tok) {
                   1316:        case (MDOC_Fd):
                   1317:                /* FALLTHROUGH */
                   1318:        case (MDOC_Fn):
                   1319:                /* FALLTHROUGH */
                   1320:        case (MDOC_Fo):
                   1321:                /* FALLTHROUGH */
                   1322:        case (MDOC_In):
                   1323:                /* FALLTHROUGH */
                   1324:        case (MDOC_Vt):
                   1325:                term_vspace(p);
                   1326:                break;
                   1327:        case (MDOC_Ft):
                   1328:                if (MDOC_Fn != n->tok && MDOC_Fo != n->tok) {
                   1329:                        term_vspace(p);
                   1330:                        break;
                   1331:                }
                   1332:                /* FALLTHROUGH */
                   1333:        default:
                   1334:                term_newln(p);
                   1335:                break;
                   1336:        }
                   1337: }
                   1338:
                   1339:
1.69      schwarze 1340: static int
                   1341: termp_vt_pre(DECL_ARGS)
                   1342: {
                   1343:
1.86      schwarze 1344:        if (MDOC_ELEM == n->type) {
                   1345:                synopsis_pre(p, n);
1.69      schwarze 1346:                return(termp_under_pre(p, pair, m, n));
1.86      schwarze 1347:        } else if (MDOC_BLOCK == n->type) {
                   1348:                synopsis_pre(p, n);
                   1349:                return(1);
                   1350:        } else if (MDOC_HEAD == n->type)
1.69      schwarze 1351:                return(0);
                   1352:
                   1353:        return(termp_under_pre(p, pair, m, n));
                   1354: }
                   1355:
                   1356:
1.1       kristaps 1357: /* ARGSUSED */
                   1358: static int
1.54      schwarze 1359: termp_bold_pre(DECL_ARGS)
1.1       kristaps 1360: {
                   1361:
1.65      schwarze 1362:        term_fontpush(p, TERMFONT_BOLD);
1.1       kristaps 1363:        return(1);
                   1364: }
                   1365:
                   1366:
                   1367: /* ARGSUSED */
1.86      schwarze 1368: static int
                   1369: termp_fd_pre(DECL_ARGS)
1.1       kristaps 1370: {
                   1371:
1.86      schwarze 1372:        synopsis_pre(p, n);
                   1373:        return(termp_bold_pre(p, pair, m, n));
1.1       kristaps 1374: }
                   1375:
                   1376:
                   1377: /* ARGSUSED */
                   1378: static int
                   1379: termp_sh_pre(DECL_ARGS)
                   1380: {
1.60      schwarze 1381:
                   1382:        /* No vspace between consecutive `Sh' calls. */
                   1383:
                   1384:        switch (n->type) {
1.52      schwarze 1385:        case (MDOC_BLOCK):
1.60      schwarze 1386:                if (n->prev && MDOC_Sh == n->prev->tok)
                   1387:                        if (NULL == n->prev->body->child)
1.52      schwarze 1388:                                break;
                   1389:                term_vspace(p);
                   1390:                break;
1.1       kristaps 1391:        case (MDOC_HEAD):
1.65      schwarze 1392:                term_fontpush(p, TERMFONT_BOLD);
1.1       kristaps 1393:                break;
                   1394:        case (MDOC_BODY):
1.89      schwarze 1395:                p->offset = term_len(p, INDENT);
1.1       kristaps 1396:                break;
                   1397:        default:
                   1398:                break;
                   1399:        }
                   1400:        return(1);
                   1401: }
                   1402:
                   1403:
                   1404: /* ARGSUSED */
                   1405: static void
                   1406: termp_sh_post(DECL_ARGS)
                   1407: {
                   1408:
1.60      schwarze 1409:        switch (n->type) {
1.1       kristaps 1410:        case (MDOC_HEAD):
                   1411:                term_newln(p);
                   1412:                break;
                   1413:        case (MDOC_BODY):
                   1414:                term_newln(p);
                   1415:                p->offset = 0;
                   1416:                break;
                   1417:        default:
                   1418:                break;
                   1419:        }
                   1420: }
                   1421:
                   1422:
                   1423: /* ARGSUSED */
                   1424: static int
                   1425: termp_op_pre(DECL_ARGS)
                   1426: {
                   1427:
1.60      schwarze 1428:        switch (n->type) {
1.1       kristaps 1429:        case (MDOC_BODY):
                   1430:                term_word(p, "\\(lB");
                   1431:                p->flags |= TERMP_NOSPACE;
                   1432:                break;
                   1433:        default:
                   1434:                break;
                   1435:        }
                   1436:        return(1);
                   1437: }
                   1438:
                   1439:
                   1440: /* ARGSUSED */
                   1441: static int
                   1442: termp_bt_pre(DECL_ARGS)
                   1443: {
                   1444:
                   1445:        term_word(p, "is currently in beta test.");
1.84      schwarze 1446:        p->flags |= TERMP_SENTENCE;
1.59      schwarze 1447:        return(0);
1.1       kristaps 1448: }
                   1449:
                   1450:
                   1451: /* ARGSUSED */
                   1452: static void
                   1453: termp_lb_post(DECL_ARGS)
                   1454: {
                   1455:
1.77      schwarze 1456:        if (SEC_LIBRARY == n->sec && MDOC_LINE & n->flags)
1.57      schwarze 1457:                term_newln(p);
1.1       kristaps 1458: }
                   1459:
                   1460:
                   1461: /* ARGSUSED */
                   1462: static int
                   1463: termp_ud_pre(DECL_ARGS)
                   1464: {
                   1465:
                   1466:        term_word(p, "currently under development.");
1.84      schwarze 1467:        p->flags |= TERMP_SENTENCE;
1.60      schwarze 1468:        return(0);
1.1       kristaps 1469: }
                   1470:
                   1471:
                   1472: /* ARGSUSED */
                   1473: static int
                   1474: termp_d1_pre(DECL_ARGS)
                   1475: {
                   1476:
1.60      schwarze 1477:        if (MDOC_BLOCK != n->type)
1.1       kristaps 1478:                return(1);
                   1479:        term_newln(p);
1.89      schwarze 1480:        p->offset += term_len(p, (INDENT + 1));
1.1       kristaps 1481:        return(1);
                   1482: }
                   1483:
                   1484:
                   1485: /* ARGSUSED */
                   1486: static void
                   1487: termp_d1_post(DECL_ARGS)
                   1488: {
                   1489:
1.60      schwarze 1490:        if (MDOC_BLOCK != n->type)
1.1       kristaps 1491:                return;
                   1492:        term_newln(p);
                   1493: }
                   1494:
                   1495:
                   1496: /* ARGSUSED */
                   1497: static int
                   1498: termp_aq_pre(DECL_ARGS)
                   1499: {
                   1500:
1.60      schwarze 1501:        if (MDOC_BODY != n->type)
1.1       kristaps 1502:                return(1);
                   1503:        term_word(p, "\\(la");
                   1504:        p->flags |= TERMP_NOSPACE;
                   1505:        return(1);
                   1506: }
                   1507:
                   1508:
                   1509: /* ARGSUSED */
                   1510: static void
                   1511: termp_aq_post(DECL_ARGS)
                   1512: {
                   1513:
1.60      schwarze 1514:        if (MDOC_BODY != n->type)
1.1       kristaps 1515:                return;
                   1516:        p->flags |= TERMP_NOSPACE;
                   1517:        term_word(p, "\\(ra");
                   1518: }
                   1519:
                   1520:
                   1521: /* ARGSUSED */
                   1522: static int
                   1523: termp_ft_pre(DECL_ARGS)
                   1524: {
                   1525:
1.85      schwarze 1526:        /* NB: MDOC_LINE does not effect this! */
1.86      schwarze 1527:        synopsis_pre(p, n);
1.65      schwarze 1528:        term_fontpush(p, TERMFONT_UNDER);
1.1       kristaps 1529:        return(1);
                   1530: }
                   1531:
                   1532:
                   1533: /* ARGSUSED */
                   1534: static int
                   1535: termp_fn_pre(DECL_ARGS)
                   1536: {
1.60      schwarze 1537:        const struct mdoc_node  *nn;
1.1       kristaps 1538:
1.86      schwarze 1539:        synopsis_pre(p, n);
1.85      schwarze 1540:
1.65      schwarze 1541:        term_fontpush(p, TERMFONT_BOLD);
1.60      schwarze 1542:        term_word(p, n->child->string);
1.65      schwarze 1543:        term_fontpop(p);
1.1       kristaps 1544:
                   1545:        p->flags |= TERMP_NOSPACE;
                   1546:        term_word(p, "(");
                   1547:
1.60      schwarze 1548:        for (nn = n->child->next; nn; nn = nn->next) {
1.65      schwarze 1549:                term_fontpush(p, TERMFONT_UNDER);
1.60      schwarze 1550:                term_word(p, nn->string);
1.65      schwarze 1551:                term_fontpop(p);
                   1552:
1.60      schwarze 1553:                if (nn->next)
1.1       kristaps 1554:                        term_word(p, ",");
                   1555:        }
                   1556:
                   1557:        term_word(p, ")");
                   1558:
1.92      schwarze 1559:        if (MDOC_SYNPRETTY & n->flags)
1.1       kristaps 1560:                term_word(p, ";");
                   1561:
                   1562:        return(0);
                   1563: }
                   1564:
                   1565:
                   1566: /* ARGSUSED */
                   1567: static int
                   1568: termp_fa_pre(DECL_ARGS)
                   1569: {
1.60      schwarze 1570:        const struct mdoc_node  *nn;
1.1       kristaps 1571:
1.60      schwarze 1572:        if (n->parent->tok != MDOC_Fo) {
1.65      schwarze 1573:                term_fontpush(p, TERMFONT_UNDER);
1.1       kristaps 1574:                return(1);
                   1575:        }
                   1576:
1.60      schwarze 1577:        for (nn = n->child; nn; nn = nn->next) {
1.65      schwarze 1578:                term_fontpush(p, TERMFONT_UNDER);
1.60      schwarze 1579:                term_word(p, nn->string);
1.65      schwarze 1580:                term_fontpop(p);
                   1581:
1.60      schwarze 1582:                if (nn->next)
1.1       kristaps 1583:                        term_word(p, ",");
                   1584:        }
                   1585:
1.60      schwarze 1586:        if (n->child && n->next && n->next->tok == MDOC_Fa)
1.1       kristaps 1587:                term_word(p, ",");
                   1588:
                   1589:        return(0);
                   1590: }
                   1591:
                   1592:
                   1593: /* ARGSUSED */
                   1594: static int
                   1595: termp_bd_pre(DECL_ARGS)
                   1596: {
1.75      schwarze 1597:        size_t                   tabwidth;
1.77      schwarze 1598:        size_t                   rm, rmax;
1.60      schwarze 1599:        const struct mdoc_node  *nn;
1.1       kristaps 1600:
1.60      schwarze 1601:        if (MDOC_BLOCK == n->type) {
1.61      schwarze 1602:                print_bvspace(p, n, n);
1.45      schwarze 1603:                return(1);
1.73      schwarze 1604:        } else if (MDOC_HEAD == n->type)
                   1605:                return(0);
1.1       kristaps 1606:
1.88      schwarze 1607:        if (n->data.Bd.offs)
1.89      schwarze 1608:                p->offset += a2offs(p, n->data.Bd.offs);
1.60      schwarze 1609:
                   1610:        /*
                   1611:         * If -ragged or -filled are specified, the block does nothing
                   1612:         * but change the indentation.  If -unfilled or -literal are
                   1613:         * specified, text is printed exactly as entered in the display:
                   1614:         * for macro lines, a newline is appended to the line.  Blank
                   1615:         * lines are allowed.
                   1616:         */
1.48      schwarze 1617:
1.88      schwarze 1618:        if (DISP_literal != n->data.Bd.type &&
                   1619:                        DISP_unfilled != n->data.Bd.type)
1.1       kristaps 1620:                return(1);
                   1621:
1.75      schwarze 1622:        tabwidth = p->tabwidth;
1.89      schwarze 1623:        p->tabwidth = term_len(p, 8);
1.77      schwarze 1624:        rm = p->rmargin;
                   1625:        rmax = p->maxrmargin;
                   1626:        p->rmargin = p->maxrmargin = TERM_MAXMARGIN;
                   1627:
1.60      schwarze 1628:        for (nn = n->child; nn; nn = nn->next) {
1.48      schwarze 1629:                p->flags |= TERMP_NOSPACE;
1.65      schwarze 1630:                print_mdoc_node(p, pair, m, nn);
1.75      schwarze 1631:                if (NULL == nn->prev ||
                   1632:                    nn->prev->line < nn->line ||
                   1633:                    NULL == nn->next)
1.1       kristaps 1634:                        term_flushln(p);
                   1635:        }
1.88      schwarze 1636:
1.75      schwarze 1637:        p->tabwidth = tabwidth;
1.77      schwarze 1638:        p->rmargin = rm;
                   1639:        p->maxrmargin = rmax;
1.1       kristaps 1640:        return(0);
                   1641: }
                   1642:
                   1643:
                   1644: /* ARGSUSED */
                   1645: static void
                   1646: termp_bd_post(DECL_ARGS)
                   1647: {
1.77      schwarze 1648:        size_t           rm, rmax;
1.1       kristaps 1649:
1.60      schwarze 1650:        if (MDOC_BODY != n->type)
1.1       kristaps 1651:                return;
1.77      schwarze 1652:
                   1653:        rm = p->rmargin;
                   1654:        rmax = p->maxrmargin;
                   1655:
1.88      schwarze 1656:        if (DISP_literal == n->data.Bd.type ||
                   1657:                        DISP_unfilled == n->data.Bd.type)
1.77      schwarze 1658:                p->rmargin = p->maxrmargin = TERM_MAXMARGIN;
                   1659:
1.48      schwarze 1660:        p->flags |= TERMP_NOSPACE;
1.75      schwarze 1661:        term_newln(p);
1.77      schwarze 1662:
                   1663:        p->rmargin = rm;
                   1664:        p->maxrmargin = rmax;
1.1       kristaps 1665: }
                   1666:
                   1667:
                   1668: /* ARGSUSED */
                   1669: static int
                   1670: termp_qq_pre(DECL_ARGS)
                   1671: {
                   1672:
1.60      schwarze 1673:        if (MDOC_BODY != n->type)
1.1       kristaps 1674:                return(1);
                   1675:        term_word(p, "\"");
                   1676:        p->flags |= TERMP_NOSPACE;
                   1677:        return(1);
                   1678: }
                   1679:
                   1680:
                   1681: /* ARGSUSED */
                   1682: static void
                   1683: termp_qq_post(DECL_ARGS)
                   1684: {
                   1685:
1.60      schwarze 1686:        if (MDOC_BODY != n->type)
1.1       kristaps 1687:                return;
                   1688:        p->flags |= TERMP_NOSPACE;
                   1689:        term_word(p, "\"");
                   1690: }
                   1691:
                   1692:
                   1693: /* ARGSUSED */
                   1694: static void
                   1695: termp_bx_post(DECL_ARGS)
                   1696: {
                   1697:
1.60      schwarze 1698:        if (n->child)
1.1       kristaps 1699:                p->flags |= TERMP_NOSPACE;
                   1700:        term_word(p, "BSD");
                   1701: }
                   1702:
                   1703:
                   1704: /* ARGSUSED */
                   1705: static int
1.26      schwarze 1706: termp_xx_pre(DECL_ARGS)
1.1       kristaps 1707: {
1.26      schwarze 1708:        const char      *pp;
1.1       kristaps 1709:
1.26      schwarze 1710:        pp = NULL;
1.60      schwarze 1711:        switch (n->tok) {
1.26      schwarze 1712:        case (MDOC_Bsx):
                   1713:                pp = "BSDI BSD/OS";
                   1714:                break;
                   1715:        case (MDOC_Dx):
1.64      schwarze 1716:                pp = "DragonFly";
1.26      schwarze 1717:                break;
                   1718:        case (MDOC_Fx):
                   1719:                pp = "FreeBSD";
                   1720:                break;
                   1721:        case (MDOC_Nx):
                   1722:                pp = "NetBSD";
                   1723:                break;
                   1724:        case (MDOC_Ox):
                   1725:                pp = "OpenBSD";
                   1726:                break;
                   1727:        case (MDOC_Ux):
                   1728:                pp = "UNIX";
                   1729:                break;
                   1730:        default:
                   1731:                break;
                   1732:        }
1.1       kristaps 1733:
1.26      schwarze 1734:        assert(pp);
                   1735:        term_word(p, pp);
1.1       kristaps 1736:        return(1);
                   1737: }
                   1738:
                   1739:
                   1740: /* ARGSUSED */
                   1741: static int
                   1742: termp_sq_pre(DECL_ARGS)
                   1743: {
                   1744:
1.60      schwarze 1745:        if (MDOC_BODY != n->type)
1.1       kristaps 1746:                return(1);
                   1747:        term_word(p, "\\(oq");
                   1748:        p->flags |= TERMP_NOSPACE;
                   1749:        return(1);
                   1750: }
                   1751:
                   1752:
                   1753: /* ARGSUSED */
                   1754: static void
                   1755: termp_sq_post(DECL_ARGS)
                   1756: {
                   1757:
1.60      schwarze 1758:        if (MDOC_BODY != n->type)
1.1       kristaps 1759:                return;
                   1760:        p->flags |= TERMP_NOSPACE;
                   1761:        term_word(p, "\\(aq");
                   1762: }
                   1763:
                   1764:
                   1765: /* ARGSUSED */
                   1766: static int
                   1767: termp_pf_pre(DECL_ARGS)
                   1768: {
                   1769:
                   1770:        p->flags |= TERMP_IGNDELIM;
                   1771:        return(1);
                   1772: }
                   1773:
                   1774:
                   1775: /* ARGSUSED */
                   1776: static void
                   1777: termp_pf_post(DECL_ARGS)
                   1778: {
                   1779:
                   1780:        p->flags &= ~TERMP_IGNDELIM;
                   1781:        p->flags |= TERMP_NOSPACE;
                   1782: }
                   1783:
                   1784:
                   1785: /* ARGSUSED */
                   1786: static int
                   1787: termp_ss_pre(DECL_ARGS)
                   1788: {
                   1789:
1.60      schwarze 1790:        switch (n->type) {
1.1       kristaps 1791:        case (MDOC_BLOCK):
                   1792:                term_newln(p);
1.60      schwarze 1793:                if (n->prev)
1.1       kristaps 1794:                        term_vspace(p);
                   1795:                break;
                   1796:        case (MDOC_HEAD):
1.65      schwarze 1797:                term_fontpush(p, TERMFONT_BOLD);
1.89      schwarze 1798:                p->offset = term_len(p, HALFINDENT);
1.1       kristaps 1799:                break;
                   1800:        default:
                   1801:                break;
                   1802:        }
                   1803:
                   1804:        return(1);
                   1805: }
                   1806:
                   1807:
                   1808: /* ARGSUSED */
                   1809: static void
                   1810: termp_ss_post(DECL_ARGS)
                   1811: {
                   1812:
1.60      schwarze 1813:        if (MDOC_HEAD == n->type)
1.1       kristaps 1814:                term_newln(p);
                   1815: }
                   1816:
                   1817:
                   1818: /* ARGSUSED */
                   1819: static int
                   1820: termp_cd_pre(DECL_ARGS)
                   1821: {
                   1822:
1.86      schwarze 1823:        synopsis_pre(p, n);
1.65      schwarze 1824:        term_fontpush(p, TERMFONT_BOLD);
1.1       kristaps 1825:        return(1);
                   1826: }
                   1827:
                   1828:
                   1829: /* ARGSUSED */
                   1830: static int
                   1831: termp_in_pre(DECL_ARGS)
                   1832: {
                   1833:
1.86      schwarze 1834:        synopsis_pre(p, n);
1.85      schwarze 1835:
1.92      schwarze 1836:        if (MDOC_SYNPRETTY & n->flags && MDOC_LINE & n->flags) {
1.85      schwarze 1837:                term_fontpush(p, TERMFONT_BOLD);
1.23      schwarze 1838:                term_word(p, "#include");
1.85      schwarze 1839:                term_word(p, "<");
                   1840:        } else {
                   1841:                term_word(p, "<");
                   1842:                term_fontpush(p, TERMFONT_UNDER);
                   1843:        }
1.23      schwarze 1844:
1.1       kristaps 1845:        p->flags |= TERMP_NOSPACE;
                   1846:        return(1);
                   1847: }
                   1848:
                   1849:
                   1850: /* ARGSUSED */
                   1851: static void
                   1852: termp_in_post(DECL_ARGS)
                   1853: {
                   1854:
1.92      schwarze 1855:        if (MDOC_SYNPRETTY & n->flags)
1.85      schwarze 1856:                term_fontpush(p, TERMFONT_BOLD);
                   1857:
1.59      schwarze 1858:        p->flags |= TERMP_NOSPACE;
1.1       kristaps 1859:        term_word(p, ">");
                   1860:
1.92      schwarze 1861:        if (MDOC_SYNPRETTY & n->flags)
1.85      schwarze 1862:                term_fontpop(p);
1.38      schwarze 1863: }
                   1864:
                   1865:
                   1866: /* ARGSUSED */
                   1867: static int
                   1868: termp_sp_pre(DECL_ARGS)
                   1869: {
1.61      schwarze 1870:        size_t           i, len;
1.38      schwarze 1871:
1.60      schwarze 1872:        switch (n->tok) {
1.54      schwarze 1873:        case (MDOC_sp):
1.89      schwarze 1874:                len = n->child ? a2height(p, n->child->string) : 1;
1.54      schwarze 1875:                break;
                   1876:        case (MDOC_br):
                   1877:                len = 0;
                   1878:                break;
                   1879:        default:
                   1880:                len = 1;
                   1881:                break;
1.38      schwarze 1882:        }
                   1883:
                   1884:        if (0 == len)
                   1885:                term_newln(p);
                   1886:        for (i = 0; i < len; i++)
                   1887:                term_vspace(p);
                   1888:
                   1889:        return(0);
                   1890: }
                   1891:
                   1892:
                   1893: /* ARGSUSED */
                   1894: static int
1.1       kristaps 1895: termp_brq_pre(DECL_ARGS)
                   1896: {
                   1897:
1.60      schwarze 1898:        if (MDOC_BODY != n->type)
1.1       kristaps 1899:                return(1);
                   1900:        term_word(p, "\\(lC");
                   1901:        p->flags |= TERMP_NOSPACE;
                   1902:        return(1);
                   1903: }
                   1904:
                   1905:
                   1906: /* ARGSUSED */
                   1907: static void
                   1908: termp_brq_post(DECL_ARGS)
                   1909: {
                   1910:
1.60      schwarze 1911:        if (MDOC_BODY != n->type)
1.1       kristaps 1912:                return;
                   1913:        p->flags |= TERMP_NOSPACE;
                   1914:        term_word(p, "\\(rC");
                   1915: }
                   1916:
                   1917:
                   1918: /* ARGSUSED */
                   1919: static int
                   1920: termp_bq_pre(DECL_ARGS)
                   1921: {
                   1922:
1.60      schwarze 1923:        if (MDOC_BODY != n->type)
1.1       kristaps 1924:                return(1);
                   1925:        term_word(p, "\\(lB");
                   1926:        p->flags |= TERMP_NOSPACE;
                   1927:        return(1);
                   1928: }
                   1929:
                   1930:
                   1931: /* ARGSUSED */
                   1932: static void
                   1933: termp_bq_post(DECL_ARGS)
                   1934: {
                   1935:
1.60      schwarze 1936:        if (MDOC_BODY != n->type)
1.1       kristaps 1937:                return;
                   1938:        p->flags |= TERMP_NOSPACE;
                   1939:        term_word(p, "\\(rB");
                   1940: }
                   1941:
                   1942:
                   1943: /* ARGSUSED */
                   1944: static int
                   1945: termp_pq_pre(DECL_ARGS)
                   1946: {
                   1947:
1.60      schwarze 1948:        if (MDOC_BODY != n->type)
1.1       kristaps 1949:                return(1);
                   1950:        term_word(p, "\\&(");
                   1951:        p->flags |= TERMP_NOSPACE;
                   1952:        return(1);
                   1953: }
                   1954:
                   1955:
                   1956: /* ARGSUSED */
                   1957: static void
                   1958: termp_pq_post(DECL_ARGS)
                   1959: {
                   1960:
1.60      schwarze 1961:        if (MDOC_BODY != n->type)
1.1       kristaps 1962:                return;
                   1963:        term_word(p, ")");
                   1964: }
                   1965:
                   1966:
                   1967: /* ARGSUSED */
                   1968: static int
                   1969: termp_fo_pre(DECL_ARGS)
                   1970: {
                   1971:
1.85      schwarze 1972:        if (MDOC_BLOCK == n->type) {
1.86      schwarze 1973:                synopsis_pre(p, n);
1.85      schwarze 1974:                return(1);
                   1975:        } else if (MDOC_BODY == n->type) {
1.31      schwarze 1976:                p->flags |= TERMP_NOSPACE;
1.1       kristaps 1977:                term_word(p, "(");
                   1978:                p->flags |= TERMP_NOSPACE;
                   1979:                return(1);
1.85      schwarze 1980:        }
                   1981:
                   1982:        /* XXX: we drop non-initial arguments as per groff. */
1.1       kristaps 1983:
1.85      schwarze 1984:        assert(n->child);
                   1985:        assert(n->child->string);
1.65      schwarze 1986:        term_fontpush(p, TERMFONT_BOLD);
1.85      schwarze 1987:        term_word(p, n->child->string);
1.1       kristaps 1988:        return(0);
                   1989: }
                   1990:
                   1991:
                   1992: /* ARGSUSED */
                   1993: static void
                   1994: termp_fo_post(DECL_ARGS)
                   1995: {
                   1996:
1.86      schwarze 1997:        if (MDOC_BODY != n->type)
                   1998:                return;
                   1999:
                   2000:        p->flags |= TERMP_NOSPACE;
                   2001:        term_word(p, ")");
                   2002:
1.92      schwarze 2003:        if (MDOC_SYNPRETTY & n->flags) {
1.85      schwarze 2004:                p->flags |= TERMP_NOSPACE;
1.86      schwarze 2005:                term_word(p, ";");
1.85      schwarze 2006:        }
1.1       kristaps 2007: }
                   2008:
                   2009:
                   2010: /* ARGSUSED */
                   2011: static int
                   2012: termp_bf_pre(DECL_ARGS)
                   2013: {
1.60      schwarze 2014:        const struct mdoc_node  *nn;
1.1       kristaps 2015:
1.60      schwarze 2016:        if (MDOC_HEAD == n->type)
1.1       kristaps 2017:                return(0);
1.60      schwarze 2018:        else if (MDOC_BLOCK != n->type)
1.1       kristaps 2019:                return(1);
                   2020:
1.60      schwarze 2021:        if (NULL == (nn = n->head->child)) {
                   2022:                if (arg_hasattr(MDOC_Emphasis, n))
1.65      schwarze 2023:                        term_fontpush(p, TERMFONT_UNDER);
1.60      schwarze 2024:                else if (arg_hasattr(MDOC_Symbolic, n))
1.65      schwarze 2025:                        term_fontpush(p, TERMFONT_BOLD);
                   2026:                else
                   2027:                        term_fontpush(p, TERMFONT_NONE);
1.1       kristaps 2028:
                   2029:                return(1);
                   2030:        }
                   2031:
1.60      schwarze 2032:        assert(MDOC_TEXT == nn->type);
                   2033:        if (0 == strcmp("Em", nn->string))
1.65      schwarze 2034:                term_fontpush(p, TERMFONT_UNDER);
1.60      schwarze 2035:        else if (0 == strcmp("Sy", nn->string))
1.65      schwarze 2036:                term_fontpush(p, TERMFONT_BOLD);
                   2037:        else
                   2038:                term_fontpush(p, TERMFONT_NONE);
1.1       kristaps 2039:
                   2040:        return(1);
                   2041: }
                   2042:
                   2043:
                   2044: /* ARGSUSED */
                   2045: static int
                   2046: termp_sm_pre(DECL_ARGS)
                   2047: {
                   2048:
1.60      schwarze 2049:        assert(n->child && MDOC_TEXT == n->child->type);
1.68      schwarze 2050:        if (0 == strcmp("on", n->child->string))
1.1       kristaps 2051:                p->flags &= ~TERMP_NONOSPACE;
1.68      schwarze 2052:        else
1.1       kristaps 2053:                p->flags |= TERMP_NONOSPACE;
                   2054:
                   2055:        return(0);
                   2056: }
                   2057:
                   2058:
                   2059: /* ARGSUSED */
                   2060: static int
                   2061: termp_ap_pre(DECL_ARGS)
                   2062: {
                   2063:
                   2064:        p->flags |= TERMP_NOSPACE;
                   2065:        term_word(p, "\\(aq");
                   2066:        p->flags |= TERMP_NOSPACE;
                   2067:        return(1);
                   2068: }
                   2069:
                   2070:
                   2071: /* ARGSUSED */
                   2072: static void
                   2073: termp____post(DECL_ARGS)
                   2074: {
                   2075:
1.62      schwarze 2076:        /* TODO: %U. */
                   2077:
1.1       kristaps 2078:        p->flags |= TERMP_NOSPACE;
1.60      schwarze 2079:        term_word(p, n->next ? "," : ".");
1.1       kristaps 2080: }
                   2081:
                   2082:
                   2083: /* ARGSUSED */
                   2084: static int
1.65      schwarze 2085: termp_li_pre(DECL_ARGS)
                   2086: {
                   2087:
                   2088:        term_fontpush(p, TERMFONT_NONE);
                   2089:        return(1);
                   2090: }
                   2091:
                   2092:
                   2093: /* ARGSUSED */
                   2094: static int
1.1       kristaps 2095: termp_lk_pre(DECL_ARGS)
                   2096: {
1.60      schwarze 2097:        const struct mdoc_node *nn;
1.1       kristaps 2098:
1.65      schwarze 2099:        term_fontpush(p, TERMFONT_UNDER);
1.62      schwarze 2100:        nn = n->child;
                   2101:
                   2102:        if (NULL == nn->next)
1.6       schwarze 2103:                return(1);
1.1       kristaps 2104:
1.60      schwarze 2105:        term_word(p, nn->string);
1.65      schwarze 2106:        term_fontpop(p);
1.62      schwarze 2107:
1.1       kristaps 2108:        p->flags |= TERMP_NOSPACE;
                   2109:        term_word(p, ":");
                   2110:
1.65      schwarze 2111:        term_fontpush(p, TERMFONT_BOLD);
1.60      schwarze 2112:        for (nn = nn->next; nn; nn = nn->next)
                   2113:                term_word(p, nn->string);
1.65      schwarze 2114:        term_fontpop(p);
1.6       schwarze 2115:
1.1       kristaps 2116:        return(0);
                   2117: }
                   2118:
1.90      schwarze 2119:
                   2120: /* ARGSUSED */
                   2121: static int
                   2122: termp_bk_pre(DECL_ARGS)
                   2123: {
                   2124:
1.91      schwarze 2125:        switch (n->type) {
                   2126:        case (MDOC_BLOCK):
                   2127:                return(1);
                   2128:        case (MDOC_HEAD):
                   2129:                return(0);
                   2130:        case (MDOC_BODY):
                   2131:                p->flags |= TERMP_PREKEEP;
                   2132:                return(1);
                   2133:        default:
                   2134:                abort();
                   2135:        }
1.90      schwarze 2136: }
                   2137:
                   2138:
                   2139: /* ARGSUSED */
                   2140: static void
                   2141: termp_bk_post(DECL_ARGS)
                   2142: {
                   2143:
1.91      schwarze 2144:        if (MDOC_BODY == n->type)
                   2145:                p->flags &= ~(TERMP_KEEP | TERMP_PREKEEP);
1.90      schwarze 2146: }
1.1       kristaps 2147:
                   2148: /* ARGSUSED */
                   2149: static int
1.54      schwarze 2150: termp_under_pre(DECL_ARGS)
1.1       kristaps 2151: {
                   2152:
1.65      schwarze 2153:        term_fontpush(p, TERMFONT_UNDER);
1.1       kristaps 2154:        return(1);
                   2155: }