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Annotation of mandoc/mdoc_term.c, Revision 1.198

1.198   ! kristaps    1: /*     $Id: mdoc_term.c,v 1.197 2010/12/11 14:40:51 schwarze Exp $ */
1.1       kristaps    2: /*
1.171     schwarze    3:  * Copyright (c) 2008, 2009, 2010 Kristaps Dzonsons <kristaps@bsd.lv>
                      4:  * Copyright (c) 2010 Ingo Schwarze <schwarze@openbsd.org>
1.1       kristaps    5:  *
                      6:  * Permission to use, copy, modify, and distribute this software for any
1.6       kristaps    7:  * purpose with or without fee is hereby granted, provided that the above
                      8:  * copyright notice and this permission notice appear in all copies.
1.1       kristaps    9:  *
1.6       kristaps   10:  * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
                     11:  * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
                     12:  * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
                     13:  * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
                     14:  * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
                     15:  * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
                     16:  * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
1.1       kristaps   17:  */
1.107     kristaps   18: #ifdef HAVE_CONFIG_H
                     19: #include "config.h"
                     20: #endif
                     21:
1.1       kristaps   22: #include <sys/types.h>
                     23:
                     24: #include <assert.h>
                     25: #include <ctype.h>
1.118     kristaps   26: #include <stdint.h>
1.1       kristaps   27: #include <stdio.h>
                     28: #include <stdlib.h>
                     29: #include <string.h>
                     30:
1.125     kristaps   31: #include "mandoc.h"
1.92      kristaps   32: #include "out.h"
1.1       kristaps   33: #include "term.h"
                     34: #include "mdoc.h"
1.89      kristaps   35: #include "chars.h"
                     36: #include "main.h"
1.1       kristaps   37:
1.66      kristaps   38: #define        INDENT            5
                     39: #define        HALFINDENT        3
                     40:
1.1       kristaps   41: struct termpair {
                     42:        struct termpair  *ppair;
1.31      kristaps   43:        int               count;
1.1       kristaps   44: };
                     45:
1.31      kristaps   46: #define        DECL_ARGS struct termp *p, \
                     47:                  struct termpair *pair, \
1.86      kristaps   48:                  const struct mdoc_meta *m, \
                     49:                  const struct mdoc_node *n
1.1       kristaps   50:
                     51: struct termact {
                     52:        int     (*pre)(DECL_ARGS);
                     53:        void    (*post)(DECL_ARGS);
                     54: };
                     55:
1.157     kristaps   56: static size_t    a2width(const struct termp *, const char *);
                     57: static size_t    a2height(const struct termp *, const char *);
                     58: static size_t    a2offs(const struct termp *, const char *);
1.96      kristaps   59:
                     60: static void      print_bvspace(struct termp *,
1.151     kristaps   61:                        const struct mdoc_node *,
1.96      kristaps   62:                        const struct mdoc_node *);
1.102     kristaps   63: static void      print_mdoc_node(DECL_ARGS);
1.145     kristaps   64: static void      print_mdoc_nodelist(DECL_ARGS);
1.144     kristaps   65: static void      print_mdoc_head(struct termp *, const void *);
1.145     kristaps   66: static void      print_mdoc_foot(struct termp *, const void *);
1.143     kristaps   67: static void      synopsis_pre(struct termp *,
                     68:                        const struct mdoc_node *);
1.96      kristaps   69:
1.31      kristaps   70: static void      termp____post(DECL_ARGS);
1.61      kristaps   71: static void      termp_an_post(DECL_ARGS);
1.31      kristaps   72: static void      termp_bd_post(DECL_ARGS);
1.159     schwarze   73: static void      termp_bk_post(DECL_ARGS);
1.31      kristaps   74: static void      termp_bl_post(DECL_ARGS);
                     75: static void      termp_bx_post(DECL_ARGS);
                     76: static void      termp_d1_post(DECL_ARGS);
                     77: static void      termp_fo_post(DECL_ARGS);
                     78: static void      termp_in_post(DECL_ARGS);
                     79: static void      termp_it_post(DECL_ARGS);
                     80: static void      termp_lb_post(DECL_ARGS);
1.164     schwarze   81: static void      termp_nm_post(DECL_ARGS);
1.31      kristaps   82: static void      termp_pf_post(DECL_ARGS);
1.188     kristaps   83: static void      termp_quote_post(DECL_ARGS);
1.31      kristaps   84: static void      termp_sh_post(DECL_ARGS);
                     85: static void      termp_ss_post(DECL_ARGS);
                     86:
1.184     kristaps   87: static int       termp__a_pre(DECL_ARGS);
1.61      kristaps   88: static int       termp_an_pre(DECL_ARGS);
1.31      kristaps   89: static int       termp_ap_pre(DECL_ARGS);
                     90: static int       termp_bd_pre(DECL_ARGS);
                     91: static int       termp_bf_pre(DECL_ARGS);
1.159     schwarze   92: static int       termp_bk_pre(DECL_ARGS);
1.115     kristaps   93: static int       termp_bl_pre(DECL_ARGS);
1.69      kristaps   94: static int       termp_bold_pre(DECL_ARGS);
1.31      kristaps   95: static int       termp_bt_pre(DECL_ARGS);
                     96: static int       termp_cd_pre(DECL_ARGS);
                     97: static int       termp_d1_pre(DECL_ARGS);
                     98: static int       termp_ex_pre(DECL_ARGS);
                     99: static int       termp_fa_pre(DECL_ARGS);
1.188     kristaps  100: static int       termp_fd_pre(DECL_ARGS);
1.31      kristaps  101: static int       termp_fl_pre(DECL_ARGS);
                    102: static int       termp_fn_pre(DECL_ARGS);
                    103: static int       termp_fo_pre(DECL_ARGS);
                    104: static int       termp_ft_pre(DECL_ARGS);
1.192     schwarze  105: static int       termp_igndelim_pre(DECL_ARGS);
1.31      kristaps  106: static int       termp_in_pre(DECL_ARGS);
                    107: static int       termp_it_pre(DECL_ARGS);
1.102     kristaps  108: static int       termp_li_pre(DECL_ARGS);
1.31      kristaps  109: static int       termp_lk_pre(DECL_ARGS);
                    110: static int       termp_nd_pre(DECL_ARGS);
                    111: static int       termp_nm_pre(DECL_ARGS);
                    112: static int       termp_ns_pre(DECL_ARGS);
1.188     kristaps  113: static int       termp_quote_pre(DECL_ARGS);
1.31      kristaps  114: static int       termp_rs_pre(DECL_ARGS);
                    115: static int       termp_rv_pre(DECL_ARGS);
                    116: static int       termp_sh_pre(DECL_ARGS);
                    117: static int       termp_sm_pre(DECL_ARGS);
1.45      kristaps  118: static int       termp_sp_pre(DECL_ARGS);
1.31      kristaps  119: static int       termp_ss_pre(DECL_ARGS);
1.69      kristaps  120: static int       termp_under_pre(DECL_ARGS);
1.31      kristaps  121: static int       termp_ud_pre(DECL_ARGS);
1.110     kristaps  122: static int       termp_vt_pre(DECL_ARGS);
1.31      kristaps  123: static int       termp_xr_pre(DECL_ARGS);
                    124: static int       termp_xx_pre(DECL_ARGS);
                    125:
1.70      kristaps  126: static const struct termact termacts[MDOC_MAX] = {
1.14      kristaps  127:        { termp_ap_pre, NULL }, /* Ap */
1.1       kristaps  128:        { NULL, NULL }, /* Dd */
                    129:        { NULL, NULL }, /* Dt */
                    130:        { NULL, NULL }, /* Os */
                    131:        { termp_sh_pre, termp_sh_post }, /* Sh */
                    132:        { termp_ss_pre, termp_ss_post }, /* Ss */
1.76      kristaps  133:        { termp_sp_pre, NULL }, /* Pp */
1.1       kristaps  134:        { termp_d1_pre, termp_d1_post }, /* D1 */
                    135:        { termp_d1_pre, termp_d1_post }, /* Dl */
                    136:        { termp_bd_pre, termp_bd_post }, /* Bd */
                    137:        { NULL, NULL }, /* Ed */
1.115     kristaps  138:        { termp_bl_pre, termp_bl_post }, /* Bl */
1.1       kristaps  139:        { NULL, NULL }, /* El */
                    140:        { termp_it_pre, termp_it_post }, /* It */
1.178     kristaps  141:        { termp_under_pre, NULL }, /* Ad */
1.61      kristaps  142:        { termp_an_pre, termp_an_post }, /* An */
1.69      kristaps  143:        { termp_under_pre, NULL }, /* Ar */
1.1       kristaps  144:        { termp_cd_pre, NULL }, /* Cd */
1.69      kristaps  145:        { termp_bold_pre, NULL }, /* Cm */
1.1       kristaps  146:        { NULL, NULL }, /* Dv */
                    147:        { NULL, NULL }, /* Er */
                    148:        { NULL, NULL }, /* Ev */
                    149:        { termp_ex_pre, NULL }, /* Ex */
                    150:        { termp_fa_pre, NULL }, /* Fa */
1.143     kristaps  151:        { termp_fd_pre, NULL }, /* Fd */
1.1       kristaps  152:        { termp_fl_pre, NULL }, /* Fl */
1.143     kristaps  153:        { termp_fn_pre, NULL }, /* Fn */
1.141     kristaps  154:        { termp_ft_pre, NULL }, /* Ft */
1.69      kristaps  155:        { termp_bold_pre, NULL }, /* Ic */
1.1       kristaps  156:        { termp_in_pre, termp_in_post }, /* In */
1.102     kristaps  157:        { termp_li_pre, NULL }, /* Li */
1.1       kristaps  158:        { termp_nd_pre, NULL }, /* Nd */
1.164     schwarze  159:        { termp_nm_pre, termp_nm_post }, /* Nm */
1.188     kristaps  160:        { termp_quote_pre, termp_quote_post }, /* Op */
1.1       kristaps  161:        { NULL, NULL }, /* Ot */
1.69      kristaps  162:        { termp_under_pre, NULL }, /* Pa */
1.1       kristaps  163:        { termp_rv_pre, NULL }, /* Rv */
1.36      kristaps  164:        { NULL, NULL }, /* St */
1.69      kristaps  165:        { termp_under_pre, NULL }, /* Va */
1.143     kristaps  166:        { termp_vt_pre, NULL }, /* Vt */
1.1       kristaps  167:        { termp_xr_pre, NULL }, /* Xr */
1.184     kristaps  168:        { termp__a_pre, termp____post }, /* %A */
1.84      kristaps  169:        { termp_under_pre, termp____post }, /* %B */
1.1       kristaps  170:        { NULL, termp____post }, /* %D */
1.84      kristaps  171:        { termp_under_pre, termp____post }, /* %I */
1.69      kristaps  172:        { termp_under_pre, termp____post }, /* %J */
1.1       kristaps  173:        { NULL, termp____post }, /* %N */
                    174:        { NULL, termp____post }, /* %O */
                    175:        { NULL, termp____post }, /* %P */
                    176:        { NULL, termp____post }, /* %R */
1.117     kristaps  177:        { termp_under_pre, termp____post }, /* %T */
1.1       kristaps  178:        { NULL, termp____post }, /* %V */
                    179:        { NULL, NULL }, /* Ac */
1.188     kristaps  180:        { termp_quote_pre, termp_quote_post }, /* Ao */
                    181:        { termp_quote_pre, termp_quote_post }, /* Aq */
1.35      kristaps  182:        { NULL, NULL }, /* At */
1.1       kristaps  183:        { NULL, NULL }, /* Bc */
                    184:        { termp_bf_pre, NULL }, /* Bf */
1.188     kristaps  185:        { termp_quote_pre, termp_quote_post }, /* Bo */
                    186:        { termp_quote_pre, termp_quote_post }, /* Bq */
1.26      kristaps  187:        { termp_xx_pre, NULL }, /* Bsx */
1.1       kristaps  188:        { NULL, termp_bx_post }, /* Bx */
                    189:        { NULL, NULL }, /* Db */
                    190:        { NULL, NULL }, /* Dc */
1.188     kristaps  191:        { termp_quote_pre, termp_quote_post }, /* Do */
                    192:        { termp_quote_pre, termp_quote_post }, /* Dq */
1.112     kristaps  193:        { NULL, NULL }, /* Ec */ /* FIXME: no space */
1.1       kristaps  194:        { NULL, NULL }, /* Ef */
1.69      kristaps  195:        { termp_under_pre, NULL }, /* Em */
1.1       kristaps  196:        { NULL, NULL }, /* Eo */
1.26      kristaps  197:        { termp_xx_pre, NULL }, /* Fx */
1.176     kristaps  198:        { termp_bold_pre, NULL }, /* Ms */
1.192     schwarze  199:        { termp_igndelim_pre, NULL }, /* No */
1.1       kristaps  200:        { termp_ns_pre, NULL }, /* Ns */
1.26      kristaps  201:        { termp_xx_pre, NULL }, /* Nx */
                    202:        { termp_xx_pre, NULL }, /* Ox */
1.1       kristaps  203:        { NULL, NULL }, /* Pc */
1.192     schwarze  204:        { termp_igndelim_pre, termp_pf_post }, /* Pf */
1.188     kristaps  205:        { termp_quote_pre, termp_quote_post }, /* Po */
                    206:        { termp_quote_pre, termp_quote_post }, /* Pq */
1.1       kristaps  207:        { NULL, NULL }, /* Qc */
1.188     kristaps  208:        { termp_quote_pre, termp_quote_post }, /* Ql */
                    209:        { termp_quote_pre, termp_quote_post }, /* Qo */
                    210:        { termp_quote_pre, termp_quote_post }, /* Qq */
1.1       kristaps  211:        { NULL, NULL }, /* Re */
                    212:        { termp_rs_pre, NULL }, /* Rs */
                    213:        { NULL, NULL }, /* Sc */
1.188     kristaps  214:        { termp_quote_pre, termp_quote_post }, /* So */
                    215:        { termp_quote_pre, termp_quote_post }, /* Sq */
1.1       kristaps  216:        { termp_sm_pre, NULL }, /* Sm */
1.69      kristaps  217:        { termp_under_pre, NULL }, /* Sx */
                    218:        { termp_bold_pre, NULL }, /* Sy */
1.1       kristaps  219:        { NULL, NULL }, /* Tn */
1.26      kristaps  220:        { termp_xx_pre, NULL }, /* Ux */
1.1       kristaps  221:        { NULL, NULL }, /* Xc */
                    222:        { NULL, NULL }, /* Xo */
                    223:        { termp_fo_pre, termp_fo_post }, /* Fo */
                    224:        { NULL, NULL }, /* Fc */
1.188     kristaps  225:        { termp_quote_pre, termp_quote_post }, /* Oo */
1.1       kristaps  226:        { NULL, NULL }, /* Oc */
1.159     schwarze  227:        { termp_bk_pre, termp_bk_post }, /* Bk */
1.1       kristaps  228:        { NULL, NULL }, /* Ek */
                    229:        { termp_bt_pre, NULL }, /* Bt */
                    230:        { NULL, NULL }, /* Hf */
                    231:        { NULL, NULL }, /* Fr */
                    232:        { termp_ud_pre, NULL }, /* Ud */
1.37      kristaps  233:        { NULL, termp_lb_post }, /* Lb */
1.76      kristaps  234:        { termp_sp_pre, NULL }, /* Lp */
1.1       kristaps  235:        { termp_lk_pre, NULL }, /* Lk */
1.69      kristaps  236:        { termp_under_pre, NULL }, /* Mt */
1.188     kristaps  237:        { termp_quote_pre, termp_quote_post }, /* Brq */
                    238:        { termp_quote_pre, termp_quote_post }, /* Bro */
1.1       kristaps  239:        { NULL, NULL }, /* Brc */
1.83      kristaps  240:        { NULL, termp____post }, /* %C */
1.81      kristaps  241:        { NULL, NULL }, /* Es */ /* TODO */
                    242:        { NULL, NULL }, /* En */ /* TODO */
1.26      kristaps  243:        { termp_xx_pre, NULL }, /* Dx */
1.83      kristaps  244:        { NULL, termp____post }, /* %Q */
1.76      kristaps  245:        { termp_sp_pre, NULL }, /* br */
1.45      kristaps  246:        { termp_sp_pre, NULL }, /* sp */
1.96      kristaps  247:        { termp_under_pre, termp____post }, /* %U */
1.135     kristaps  248:        { NULL, NULL }, /* Ta */
1.1       kristaps  249: };
                    250:
                    251:
1.70      kristaps  252: void
1.89      kristaps  253: terminal_mdoc(void *arg, const struct mdoc *mdoc)
1.1       kristaps  254: {
1.70      kristaps  255:        const struct mdoc_node  *n;
                    256:        const struct mdoc_meta  *m;
1.89      kristaps  257:        struct termp            *p;
                    258:
                    259:        p = (struct termp *)arg;
1.111     kristaps  260:
                    261:        p->overstep = 0;
1.123     joerg     262:        p->maxrmargin = p->defrmargin;
1.157     kristaps  263:        p->tabwidth = term_len(p, 5);
1.89      kristaps  264:
                    265:        if (NULL == p->symtab)
                    266:                switch (p->enc) {
                    267:                case (TERMENC_ASCII):
                    268:                        p->symtab = chars_init(CHARS_ASCII);
                    269:                        break;
                    270:                default:
                    271:                        abort();
                    272:                        /* NOTREACHED */
                    273:                }
1.70      kristaps  274:
                    275:        n = mdoc_node(mdoc);
                    276:        m = mdoc_meta(mdoc);
1.146     schwarze  277:
                    278:        term_begin(p, print_mdoc_head, print_mdoc_foot, m);
1.70      kristaps  279:
                    280:        if (n->child)
1.102     kristaps  281:                print_mdoc_nodelist(p, NULL, m, n->child);
1.144     kristaps  282:
                    283:        term_end(p);
1.1       kristaps  284: }
                    285:
                    286:
1.3       kristaps  287: static void
1.102     kristaps  288: print_mdoc_nodelist(DECL_ARGS)
1.1       kristaps  289: {
                    290:
1.102     kristaps  291:        print_mdoc_node(p, pair, m, n);
1.86      kristaps  292:        if (n->next)
1.102     kristaps  293:                print_mdoc_nodelist(p, pair, m, n->next);
1.1       kristaps  294: }
                    295:
                    296:
1.70      kristaps  297: /* ARGSUSED */
1.3       kristaps  298: static void
1.102     kristaps  299: print_mdoc_node(DECL_ARGS)
1.1       kristaps  300: {
1.102     kristaps  301:        int              chld;
                    302:        const void      *font;
1.1       kristaps  303:        struct termpair  npair;
1.30      kristaps  304:        size_t           offset, rmargin;
1.1       kristaps  305:
1.70      kristaps  306:        chld = 1;
1.29      kristaps  307:        offset = p->offset;
1.30      kristaps  308:        rmargin = p->rmargin;
1.102     kristaps  309:        font = term_fontq(p);
1.29      kristaps  310:
1.97      kristaps  311:        memset(&npair, 0, sizeof(struct termpair));
1.1       kristaps  312:        npair.ppair = pair;
1.46      kristaps  313:
1.162     schwarze  314:        if (MDOC_TEXT == n->type)
1.86      kristaps  315:                term_word(p, n->string);
1.163     kristaps  316:        else if (termacts[n->tok].pre && ENDBODY_NOT == n->end)
1.162     schwarze  317:                chld = (*termacts[n->tok].pre)(p, &npair, m, n);
1.172     kristaps  318:
                    319:        /*
                    320:         * Keeps only work until the end of a line.  If a keep was
                    321:         * invoked in a prior line, revert it to PREKEEP.
1.197     schwarze  322:         *
                    323:         * Also let SYNPRETTY sections behave as if they were wrapped
                    324:         * in a `Bk' block.
1.172     kristaps  325:         */
                    326:
1.197     schwarze  327:        if (TERMP_KEEP & p->flags || MDOC_SYNPRETTY & n->flags) {
1.172     kristaps  328:                if (n->prev && n->prev->line != n->line) {
                    329:                        p->flags &= ~TERMP_KEEP;
                    330:                        p->flags |= TERMP_PREKEEP;
                    331:                } else if (NULL == n->prev) {
                    332:                        if (n->parent && n->parent->line != n->line) {
                    333:                                p->flags &= ~TERMP_KEEP;
                    334:                                p->flags |= TERMP_PREKEEP;
                    335:                        }
                    336:                }
                    337:        }
1.197     schwarze  338:
                    339:        /*
                    340:         * Since SYNPRETTY sections aren't "turned off" with `Ek',
                    341:         * we have to intuit whether we should disable formatting.
                    342:         */
                    343:
                    344:        if ( ! (MDOC_SYNPRETTY & n->flags) &&
                    345:            ((n->prev   && MDOC_SYNPRETTY & n->prev->flags) ||
                    346:             (n->parent && MDOC_SYNPRETTY & n->parent->flags)))
                    347:                p->flags &= ~(TERMP_KEEP | TERMP_PREKEEP);
1.102     kristaps  348:
1.86      kristaps  349:        if (chld && n->child)
1.102     kristaps  350:                print_mdoc_nodelist(p, &npair, m, n->child);
1.1       kristaps  351:
1.102     kristaps  352:        term_fontpopq(p, font);
1.46      kristaps  353:
1.165     kristaps  354:        if (MDOC_TEXT != n->type && termacts[n->tok].post &&
                    355:                        ! (MDOC_ENDED & n->flags)) {
                    356:                (void)(*termacts[n->tok].post)(p, &npair, m, n);
1.162     schwarze  357:
                    358:                /*
                    359:                 * Explicit end tokens not only call the post
                    360:                 * handler, but also tell the respective block
                    361:                 * that it must not call the post handler again.
                    362:                 */
1.165     kristaps  363:                if (ENDBODY_NOT != n->end)
1.162     schwarze  364:                        n->pending->flags |= MDOC_ENDED;
                    365:
                    366:                /*
                    367:                 * End of line terminating an implicit block
                    368:                 * while an explicit block is still open.
                    369:                 * Continue the explicit block without spacing.
                    370:                 */
                    371:                if (ENDBODY_NOSPACE == n->end)
                    372:                        p->flags |= TERMP_NOSPACE;
                    373:        }
1.121     kristaps  374:
                    375:        if (MDOC_EOS & n->flags)
                    376:                p->flags |= TERMP_SENTENCE;
1.29      kristaps  377:
                    378:        p->offset = offset;
1.30      kristaps  379:        p->rmargin = rmargin;
1.1       kristaps  380: }
                    381:
                    382:
1.3       kristaps  383: static void
1.145     kristaps  384: print_mdoc_foot(struct termp *p, const void *arg)
1.1       kristaps  385: {
1.98      kristaps  386:        char            buf[DATESIZ], os[BUFSIZ];
1.144     kristaps  387:        const struct mdoc_meta *m;
                    388:
                    389:        m = (const struct mdoc_meta *)arg;
1.1       kristaps  390:
1.102     kristaps  391:        term_fontrepl(p, TERMFONT_NONE);
1.101     kristaps  392:
1.9       kristaps  393:        /*
                    394:         * Output the footer in new-groff style, that is, three columns
                    395:         * with the middle being the manual date and flanking columns
                    396:         * being the operating system:
                    397:         *
                    398:         * SYSTEM                  DATE                    SYSTEM
                    399:         */
                    400:
1.94      kristaps  401:        time2a(m->date, buf, DATESIZ);
1.98      kristaps  402:        strlcpy(os, m->os, BUFSIZ);
1.1       kristaps  403:
                    404:        term_vspace(p);
                    405:
1.9       kristaps  406:        p->offset = 0;
1.157     kristaps  407:        p->rmargin = (p->maxrmargin -
                    408:                        term_strlen(p, buf) + term_len(p, 1)) / 2;
1.1       kristaps  409:        p->flags |= TERMP_NOSPACE | TERMP_NOBREAK;
                    410:
                    411:        term_word(p, os);
                    412:        term_flushln(p);
                    413:
1.9       kristaps  414:        p->offset = p->rmargin;
1.157     kristaps  415:        p->rmargin = p->maxrmargin - term_strlen(p, os);
1.1       kristaps  416:        p->flags |= TERMP_NOLPAD | TERMP_NOSPACE;
1.9       kristaps  417:
                    418:        term_word(p, buf);
                    419:        term_flushln(p);
                    420:
1.1       kristaps  421:        p->offset = p->rmargin;
                    422:        p->rmargin = p->maxrmargin;
                    423:        p->flags &= ~TERMP_NOBREAK;
1.9       kristaps  424:        p->flags |= TERMP_NOLPAD | TERMP_NOSPACE;
1.1       kristaps  425:
1.9       kristaps  426:        term_word(p, os);
1.1       kristaps  427:        term_flushln(p);
                    428:
1.9       kristaps  429:        p->offset = 0;
                    430:        p->rmargin = p->maxrmargin;
                    431:        p->flags = 0;
1.1       kristaps  432: }
                    433:
                    434:
1.3       kristaps  435: static void
1.144     kristaps  436: print_mdoc_head(struct termp *p, const void *arg)
1.1       kristaps  437: {
1.98      kristaps  438:        char            buf[BUFSIZ], title[BUFSIZ];
1.144     kristaps  439:        const struct mdoc_meta *m;
                    440:
                    441:        m = (const struct mdoc_meta *)arg;
1.1       kristaps  442:
                    443:        p->rmargin = p->maxrmargin;
                    444:        p->offset = 0;
                    445:
                    446:        /*
                    447:         * The header is strange.  It has three components, which are
                    448:         * really two with the first duplicated.  It goes like this:
                    449:         *
                    450:         * IDENTIFIER              TITLE                   IDENTIFIER
                    451:         *
                    452:         * The IDENTIFIER is NAME(SECTION), which is the command-name
                    453:         * (if given, or "unknown" if not) followed by the manual page
                    454:         * section.  These are given in `Dt'.  The TITLE is a free-form
                    455:         * string depending on the manual volume.  If not specified, it
                    456:         * switches on the manual section.
                    457:         */
                    458:
1.86      kristaps  459:        assert(m->vol);
1.98      kristaps  460:        strlcpy(buf, m->vol, BUFSIZ);
1.1       kristaps  461:
1.86      kristaps  462:        if (m->arch) {
1.98      kristaps  463:                strlcat(buf, " (", BUFSIZ);
                    464:                strlcat(buf, m->arch, BUFSIZ);
                    465:                strlcat(buf, ")", BUFSIZ);
1.1       kristaps  466:        }
                    467:
1.124     kristaps  468:        snprintf(title, BUFSIZ, "%s(%s)", m->title, m->msec);
1.1       kristaps  469:
                    470:        p->offset = 0;
1.157     kristaps  471:        p->rmargin = (p->maxrmargin -
                    472:                        term_strlen(p, buf) + term_len(p, 1)) / 2;
1.1       kristaps  473:        p->flags |= TERMP_NOBREAK | TERMP_NOSPACE;
                    474:
                    475:        term_word(p, title);
                    476:        term_flushln(p);
                    477:
                    478:        p->offset = p->rmargin;
1.157     kristaps  479:        p->rmargin = p->maxrmargin - term_strlen(p, title);
1.9       kristaps  480:        p->flags |= TERMP_NOLPAD | TERMP_NOSPACE;
1.1       kristaps  481:
                    482:        term_word(p, buf);
                    483:        term_flushln(p);
                    484:
                    485:        p->offset = p->rmargin;
                    486:        p->rmargin = p->maxrmargin;
                    487:        p->flags &= ~TERMP_NOBREAK;
                    488:        p->flags |= TERMP_NOLPAD | TERMP_NOSPACE;
                    489:
                    490:        term_word(p, title);
                    491:        term_flushln(p);
                    492:
1.9       kristaps  493:        p->offset = 0;
1.1       kristaps  494:        p->rmargin = p->maxrmargin;
                    495:        p->flags &= ~TERMP_NOSPACE;
                    496: }
                    497:
                    498:
                    499: static size_t
1.157     kristaps  500: a2height(const struct termp *p, const char *v)
1.1       kristaps  501: {
1.92      kristaps  502:        struct roffsu    su;
1.91      kristaps  503:
1.157     kristaps  504:        assert(v);
                    505:        if ( ! a2roffsu(v, &su, SCALE_VS))
                    506:                SCALE_VS_INIT(&su, term_len(p, 1));
1.91      kristaps  507:
1.157     kristaps  508:        return(term_vspan(p, &su));
1.91      kristaps  509: }
1.1       kristaps  510:
1.40      kristaps  511:
1.91      kristaps  512: static size_t
1.157     kristaps  513: a2width(const struct termp *p, const char *v)
1.91      kristaps  514: {
1.92      kristaps  515:        struct roffsu    su;
1.1       kristaps  516:
1.154     kristaps  517:        assert(v);
                    518:        if ( ! a2roffsu(v, &su, SCALE_MAX))
1.157     kristaps  519:                SCALE_HS_INIT(&su, term_strlen(p, v));
1.1       kristaps  520:
1.157     kristaps  521:        return(term_hspan(p, &su));
1.1       kristaps  522: }
                    523:
                    524:
                    525: static size_t
1.157     kristaps  526: a2offs(const struct termp *p, const char *v)
1.1       kristaps  527: {
1.92      kristaps  528:        struct roffsu    su;
1.1       kristaps  529:
1.148     kristaps  530:        if ('\0' == *v)
1.91      kristaps  531:                return(0);
1.148     kristaps  532:        else if (0 == strcmp(v, "left"))
1.19      kristaps  533:                return(0);
1.148     kristaps  534:        else if (0 == strcmp(v, "indent"))
1.157     kristaps  535:                return(term_len(p, INDENT + 1));
1.148     kristaps  536:        else if (0 == strcmp(v, "indent-two"))
1.157     kristaps  537:                return(term_len(p, (INDENT + 1) * 2));
1.148     kristaps  538:        else if ( ! a2roffsu(v, &su, SCALE_MAX))
1.157     kristaps  539:                SCALE_HS_INIT(&su, term_strlen(p, v));
1.10      kristaps  540:
1.157     kristaps  541:        return(term_hspan(p, &su));
1.1       kristaps  542: }
                    543:
                    544:
1.108     kristaps  545: /*
                    546:  * Determine how much space to print out before block elements of `It'
                    547:  * (and thus `Bl') and `Bd'.  And then go ahead and print that space,
                    548:  * too.
                    549:  */
1.54      kristaps  550: static void
1.151     kristaps  551: print_bvspace(struct termp *p,
                    552:                const struct mdoc_node *bl,
                    553:                const struct mdoc_node *n)
1.1       kristaps  554: {
1.86      kristaps  555:        const struct mdoc_node  *nn;
1.1       kristaps  556:
                    557:        term_newln(p);
1.150     kristaps  558:
1.165     kristaps  559:        if (MDOC_Bd == bl->tok && bl->data.Bd->comp)
1.150     kristaps  560:                return;
1.165     kristaps  561:        if (MDOC_Bl == bl->tok && bl->data.Bl->comp)
1.54      kristaps  562:                return;
                    563:
1.85      kristaps  564:        /* Do not vspace directly after Ss/Sh. */
1.1       kristaps  565:
1.86      kristaps  566:        for (nn = n; nn; nn = nn->parent) {
                    567:                if (MDOC_BLOCK != nn->type)
1.1       kristaps  568:                        continue;
1.86      kristaps  569:                if (MDOC_Ss == nn->tok)
1.54      kristaps  570:                        return;
1.86      kristaps  571:                if (MDOC_Sh == nn->tok)
1.54      kristaps  572:                        return;
1.86      kristaps  573:                if (NULL == nn->prev)
1.1       kristaps  574:                        continue;
                    575:                break;
                    576:        }
                    577:
1.85      kristaps  578:        /* A `-column' does not assert vspace within the list. */
1.54      kristaps  579:
1.165     kristaps  580:        if (MDOC_Bl == bl->tok && LIST_column == bl->data.Bl->type)
1.86      kristaps  581:                if (n->prev && MDOC_It == n->prev->tok)
1.54      kristaps  582:                        return;
                    583:
1.85      kristaps  584:        /* A `-diag' without body does not vspace. */
                    585:
1.165     kristaps  586:        if (MDOC_Bl == bl->tok && LIST_diag == bl->data.Bl->type)
1.86      kristaps  587:                if (n->prev && MDOC_It == n->prev->tok) {
                    588:                        assert(n->prev->body);
                    589:                        if (NULL == n->prev->body->child)
1.55      kristaps  590:                                return;
                    591:                }
                    592:
1.54      kristaps  593:        term_vspace(p);
1.1       kristaps  594: }
                    595:
                    596:
                    597: /* ARGSUSED */
                    598: static int
                    599: termp_it_pre(DECL_ARGS)
                    600: {
1.86      kristaps  601:        const struct mdoc_node *bl, *nn;
1.1       kristaps  602:        char                    buf[7];
1.170     kristaps  603:        int                     i;
1.108     kristaps  604:        size_t                  width, offset, ncols, dcol;
1.126     kristaps  605:        enum mdoc_list          type;
1.1       kristaps  606:
1.86      kristaps  607:        if (MDOC_BLOCK == n->type) {
1.151     kristaps  608:                print_bvspace(p, n->parent->parent, n);
1.54      kristaps  609:                return(1);
                    610:        }
1.1       kristaps  611:
1.86      kristaps  612:        bl = n->parent->parent->parent;
1.165     kristaps  613:        assert(bl->data.Bl);
                    614:        type = bl->data.Bl->type;
1.1       kristaps  615:
1.108     kristaps  616:        /*
                    617:         * First calculate width and offset.  This is pretty easy unless
                    618:         * we're a -column list, in which case all prior columns must
                    619:         * be accounted for.
                    620:         */
                    621:
                    622:        width = offset = 0;
                    623:
1.165     kristaps  624:        if (bl->data.Bl->offs)
                    625:                offset = a2offs(p, bl->data.Bl->offs);
1.152     kristaps  626:
1.1       kristaps  627:        switch (type) {
1.126     kristaps  628:        case (LIST_column):
1.134     kristaps  629:                if (MDOC_HEAD == n->type)
1.1       kristaps  630:                        break;
1.155     kristaps  631:
1.105     kristaps  632:                /*
1.108     kristaps  633:                 * Imitate groff's column handling:
                    634:                 * - For each earlier column, add its width.
                    635:                 * - For less than 5 columns, add four more blanks per
                    636:                 *   column.
                    637:                 * - For exactly 5 columns, add three more blank per
                    638:                 *   column.
                    639:                 * - For more than 5 columns, add only one column.
1.105     kristaps  640:                 */
1.170     kristaps  641:                ncols = bl->data.Bl->ncols;
                    642:
1.108     kristaps  643:                /* LINTED */
1.157     kristaps  644:                dcol = ncols < 5 ? term_len(p, 4) :
                    645:                        ncols == 5 ? term_len(p, 3) : term_len(p, 1);
1.108     kristaps  646:
1.134     kristaps  647:                /*
                    648:                 * Calculate the offset by applying all prior MDOC_BODY,
                    649:                 * so we stop at the MDOC_HEAD (NULL == nn->prev).
                    650:                 */
                    651:
1.108     kristaps  652:                for (i = 0, nn = n->prev;
1.134     kristaps  653:                                nn->prev && i < (int)ncols;
1.108     kristaps  654:                                nn = nn->prev, i++)
                    655:                        offset += dcol + a2width
1.170     kristaps  656:                                (p, bl->data.Bl->cols[i]);
1.105     kristaps  657:
                    658:                /*
1.108     kristaps  659:                 * When exceeding the declared number of columns, leave
                    660:                 * the remaining widths at 0.  This will later be
                    661:                 * adjusted to the default width of 10, or, for the last
                    662:                 * column, stretched to the right margin.
1.58      kristaps  663:                 */
1.108     kristaps  664:                if (i >= (int)ncols)
                    665:                        break;
1.58      kristaps  666:
1.105     kristaps  667:                /*
1.108     kristaps  668:                 * Use the declared column widths, extended as explained
                    669:                 * in the preceding paragraph.
1.105     kristaps  670:                 */
1.170     kristaps  671:                width = a2width(p, bl->data.Bl->cols[i]) + dcol;
1.1       kristaps  672:                break;
                    673:        default:
1.165     kristaps  674:                if (NULL == bl->data.Bl->width)
1.108     kristaps  675:                        break;
                    676:
                    677:                /*
                    678:                 * Note: buffer the width by 2, which is groff's magic
                    679:                 * number for buffering single arguments.  See the above
                    680:                 * handling for column for how this changes.
                    681:                 */
1.165     kristaps  682:                assert(bl->data.Bl->width);
                    683:                width = a2width(p, bl->data.Bl->width) + term_len(p, 2);
1.1       kristaps  684:                break;
                    685:        }
                    686:
                    687:        /*
                    688:         * List-type can override the width in the case of fixed-head
                    689:         * values (bullet, dash/hyphen, enum).  Tags need a non-zero
1.67      kristaps  690:         * offset.
1.1       kristaps  691:         */
                    692:
                    693:        switch (type) {
1.126     kristaps  694:        case (LIST_bullet):
1.1       kristaps  695:                /* FALLTHROUGH */
1.126     kristaps  696:        case (LIST_dash):
1.1       kristaps  697:                /* FALLTHROUGH */
1.126     kristaps  698:        case (LIST_hyphen):
1.157     kristaps  699:                if (width < term_len(p, 4))
                    700:                        width = term_len(p, 4);
1.1       kristaps  701:                break;
1.126     kristaps  702:        case (LIST_enum):
1.157     kristaps  703:                if (width < term_len(p, 5))
                    704:                        width = term_len(p, 5);
1.17      kristaps  705:                break;
1.126     kristaps  706:        case (LIST_hang):
1.39      kristaps  707:                if (0 == width)
1.157     kristaps  708:                        width = term_len(p, 8);
1.39      kristaps  709:                break;
1.126     kristaps  710:        case (LIST_column):
1.49      kristaps  711:                /* FALLTHROUGH */
1.126     kristaps  712:        case (LIST_tag):
1.1       kristaps  713:                if (0 == width)
1.157     kristaps  714:                        width = term_len(p, 10);
1.1       kristaps  715:                break;
                    716:        default:
                    717:                break;
                    718:        }
                    719:
                    720:        /*
1.17      kristaps  721:         * Whitespace control.  Inset bodies need an initial space,
                    722:         * while diagonal bodies need two.
1.1       kristaps  723:         */
                    724:
1.51      kristaps  725:        p->flags |= TERMP_NOSPACE;
                    726:
1.1       kristaps  727:        switch (type) {
1.126     kristaps  728:        case (LIST_diag):
1.86      kristaps  729:                if (MDOC_BODY == n->type)
1.62      kristaps  730:                        term_word(p, "\\ \\ ");
1.51      kristaps  731:                break;
1.126     kristaps  732:        case (LIST_inset):
1.86      kristaps  733:                if (MDOC_BODY == n->type)
1.51      kristaps  734:                        term_word(p, "\\ ");
1.1       kristaps  735:                break;
                    736:        default:
                    737:                break;
                    738:        }
                    739:
1.51      kristaps  740:        p->flags |= TERMP_NOSPACE;
                    741:
1.1       kristaps  742:        switch (type) {
1.126     kristaps  743:        case (LIST_diag):
1.86      kristaps  744:                if (MDOC_HEAD == n->type)
1.102     kristaps  745:                        term_fontpush(p, TERMFONT_BOLD);
1.1       kristaps  746:                break;
                    747:        default:
                    748:                break;
                    749:        }
                    750:
                    751:        /*
1.109     kristaps  752:         * Pad and break control.  This is the tricky part.  These flags
                    753:         * are documented in term_flushln() in term.c.  Note that we're
                    754:         * going to unset all of these flags in termp_it_post() when we
                    755:         * exit.
1.1       kristaps  756:         */
                    757:
                    758:        switch (type) {
1.126     kristaps  759:        case (LIST_bullet):
1.1       kristaps  760:                /* FALLTHROUGH */
1.126     kristaps  761:        case (LIST_dash):
1.1       kristaps  762:                /* FALLTHROUGH */
1.126     kristaps  763:        case (LIST_enum):
1.1       kristaps  764:                /* FALLTHROUGH */
1.126     kristaps  765:        case (LIST_hyphen):
1.86      kristaps  766:                if (MDOC_HEAD == n->type)
1.39      kristaps  767:                        p->flags |= TERMP_NOBREAK;
                    768:                else
                    769:                        p->flags |= TERMP_NOLPAD;
                    770:                break;
1.126     kristaps  771:        case (LIST_hang):
1.86      kristaps  772:                if (MDOC_HEAD == n->type)
1.39      kristaps  773:                        p->flags |= TERMP_NOBREAK;
                    774:                else
                    775:                        p->flags |= TERMP_NOLPAD;
                    776:
1.86      kristaps  777:                if (MDOC_HEAD != n->type)
1.59      kristaps  778:                        break;
                    779:
                    780:                /*
                    781:                 * This is ugly.  If `-hang' is specified and the body
                    782:                 * is a `Bl' or `Bd', then we want basically to nullify
                    783:                 * the "overstep" effect in term_flushln() and treat
                    784:                 * this as a `-ohang' list instead.
                    785:                 */
1.86      kristaps  786:                if (n->next->child &&
                    787:                                (MDOC_Bl == n->next->child->tok ||
                    788:                                 MDOC_Bd == n->next->child->tok)) {
1.59      kristaps  789:                        p->flags &= ~TERMP_NOBREAK;
                    790:                        p->flags &= ~TERMP_NOLPAD;
                    791:                } else
1.39      kristaps  792:                        p->flags |= TERMP_HANG;
                    793:                break;
1.126     kristaps  794:        case (LIST_tag):
1.86      kristaps  795:                if (MDOC_HEAD == n->type)
1.51      kristaps  796:                        p->flags |= TERMP_NOBREAK | TERMP_TWOSPACE;
1.1       kristaps  797:                else
                    798:                        p->flags |= TERMP_NOLPAD;
1.38      kristaps  799:
1.86      kristaps  800:                if (MDOC_HEAD != n->type)
1.39      kristaps  801:                        break;
1.86      kristaps  802:                if (NULL == n->next || NULL == n->next->child)
1.39      kristaps  803:                        p->flags |= TERMP_DANGLE;
1.1       kristaps  804:                break;
1.126     kristaps  805:        case (LIST_column):
1.134     kristaps  806:                if (MDOC_HEAD == n->type)
                    807:                        break;
                    808:
                    809:                if (NULL == n->next)
                    810:                        p->flags &= ~TERMP_NOBREAK;
                    811:                else
                    812:                        p->flags |= TERMP_NOBREAK;
                    813:
                    814:                assert(n->prev);
                    815:                if (MDOC_BODY == n->prev->type)
                    816:                        p->flags |= TERMP_NOLPAD;
                    817:
1.1       kristaps  818:                break;
1.126     kristaps  819:        case (LIST_diag):
1.86      kristaps  820:                if (MDOC_HEAD == n->type)
1.1       kristaps  821:                        p->flags |= TERMP_NOBREAK;
                    822:                break;
                    823:        default:
                    824:                break;
                    825:        }
                    826:
                    827:        /*
                    828:         * Margin control.  Set-head-width lists have their right
                    829:         * margins shortened.  The body for these lists has the offset
                    830:         * necessarily lengthened.  Everybody gets the offset.
                    831:         */
                    832:
                    833:        p->offset += offset;
                    834:
                    835:        switch (type) {
1.126     kristaps  836:        case (LIST_hang):
1.59      kristaps  837:                /*
                    838:                 * Same stipulation as above, regarding `-hang'.  We
                    839:                 * don't want to recalculate rmargin and offsets when
                    840:                 * using `Bd' or `Bl' within `-hang' overstep lists.
                    841:                 */
1.86      kristaps  842:                if (MDOC_HEAD == n->type && n->next->child &&
                    843:                                (MDOC_Bl == n->next->child->tok ||
                    844:                                 MDOC_Bd == n->next->child->tok))
1.59      kristaps  845:                        break;
                    846:                /* FALLTHROUGH */
1.126     kristaps  847:        case (LIST_bullet):
1.1       kristaps  848:                /* FALLTHROUGH */
1.126     kristaps  849:        case (LIST_dash):
1.1       kristaps  850:                /* FALLTHROUGH */
1.126     kristaps  851:        case (LIST_enum):
1.1       kristaps  852:                /* FALLTHROUGH */
1.126     kristaps  853:        case (LIST_hyphen):
1.1       kristaps  854:                /* FALLTHROUGH */
1.126     kristaps  855:        case (LIST_tag):
1.49      kristaps  856:                assert(width);
1.86      kristaps  857:                if (MDOC_HEAD == n->type)
1.1       kristaps  858:                        p->rmargin = p->offset + width;
                    859:                else
                    860:                        p->offset += width;
                    861:                break;
1.126     kristaps  862:        case (LIST_column):
1.49      kristaps  863:                assert(width);
1.1       kristaps  864:                p->rmargin = p->offset + width;
1.50      kristaps  865:                /*
                    866:                 * XXX - this behaviour is not documented: the
                    867:                 * right-most column is filled to the right margin.
                    868:                 */
1.134     kristaps  869:                if (MDOC_HEAD == n->type)
                    870:                        break;
                    871:                if (NULL == n->next && p->rmargin < p->maxrmargin)
1.50      kristaps  872:                        p->rmargin = p->maxrmargin;
1.1       kristaps  873:                break;
                    874:        default:
                    875:                break;
                    876:        }
                    877:
                    878:        /*
                    879:         * The dash, hyphen, bullet and enum lists all have a special
1.15      kristaps  880:         * HEAD character (temporarily bold, in some cases).
1.1       kristaps  881:         */
                    882:
1.86      kristaps  883:        if (MDOC_HEAD == n->type)
1.1       kristaps  884:                switch (type) {
1.126     kristaps  885:                case (LIST_bullet):
1.102     kristaps  886:                        term_fontpush(p, TERMFONT_BOLD);
1.1       kristaps  887:                        term_word(p, "\\[bu]");
1.102     kristaps  888:                        term_fontpop(p);
1.1       kristaps  889:                        break;
1.126     kristaps  890:                case (LIST_dash):
1.1       kristaps  891:                        /* FALLTHROUGH */
1.126     kristaps  892:                case (LIST_hyphen):
1.102     kristaps  893:                        term_fontpush(p, TERMFONT_BOLD);
1.27      kristaps  894:                        term_word(p, "\\(hy");
1.102     kristaps  895:                        term_fontpop(p);
1.1       kristaps  896:                        break;
1.126     kristaps  897:                case (LIST_enum):
1.1       kristaps  898:                        (pair->ppair->ppair->count)++;
1.109     kristaps  899:                        snprintf(buf, sizeof(buf), "%d.",
1.1       kristaps  900:                                        pair->ppair->ppair->count);
                    901:                        term_word(p, buf);
                    902:                        break;
                    903:                default:
                    904:                        break;
                    905:                }
                    906:
                    907:        /*
                    908:         * If we're not going to process our children, indicate so here.
                    909:         */
                    910:
                    911:        switch (type) {
1.126     kristaps  912:        case (LIST_bullet):
1.1       kristaps  913:                /* FALLTHROUGH */
1.126     kristaps  914:        case (LIST_item):
1.1       kristaps  915:                /* FALLTHROUGH */
1.126     kristaps  916:        case (LIST_dash):
1.1       kristaps  917:                /* FALLTHROUGH */
1.126     kristaps  918:        case (LIST_hyphen):
1.1       kristaps  919:                /* FALLTHROUGH */
1.126     kristaps  920:        case (LIST_enum):
1.86      kristaps  921:                if (MDOC_HEAD == n->type)
1.1       kristaps  922:                        return(0);
                    923:                break;
1.126     kristaps  924:        case (LIST_column):
1.134     kristaps  925:                if (MDOC_HEAD == n->type)
1.1       kristaps  926:                        return(0);
                    927:                break;
                    928:        default:
                    929:                break;
                    930:        }
                    931:
                    932:        return(1);
                    933: }
                    934:
                    935:
                    936: /* ARGSUSED */
                    937: static void
                    938: termp_it_post(DECL_ARGS)
                    939: {
1.126     kristaps  940:        enum mdoc_list     type;
1.1       kristaps  941:
1.109     kristaps  942:        if (MDOC_BLOCK == n->type)
1.1       kristaps  943:                return;
                    944:
1.165     kristaps  945:        type = n->parent->parent->parent->data.Bl->type;
1.1       kristaps  946:
                    947:        switch (type) {
1.126     kristaps  948:        case (LIST_item):
1.1       kristaps  949:                /* FALLTHROUGH */
1.126     kristaps  950:        case (LIST_diag):
1.53      kristaps  951:                /* FALLTHROUGH */
1.126     kristaps  952:        case (LIST_inset):
1.86      kristaps  953:                if (MDOC_BODY == n->type)
1.130     schwarze  954:                        term_newln(p);
1.1       kristaps  955:                break;
1.126     kristaps  956:        case (LIST_column):
1.134     kristaps  957:                if (MDOC_BODY == n->type)
1.1       kristaps  958:                        term_flushln(p);
                    959:                break;
                    960:        default:
1.130     schwarze  961:                term_newln(p);
1.1       kristaps  962:                break;
                    963:        }
                    964:
1.109     kristaps  965:        /*
                    966:         * Now that our output is flushed, we can reset our tags.  Since
                    967:         * only `It' sets these flags, we're free to assume that nobody
                    968:         * has munged them in the meanwhile.
                    969:         */
                    970:
                    971:        p->flags &= ~TERMP_DANGLE;
                    972:        p->flags &= ~TERMP_NOBREAK;
                    973:        p->flags &= ~TERMP_TWOSPACE;
                    974:        p->flags &= ~TERMP_NOLPAD;
                    975:        p->flags &= ~TERMP_HANG;
1.1       kristaps  976: }
                    977:
                    978:
                    979: /* ARGSUSED */
                    980: static int
                    981: termp_nm_pre(DECL_ARGS)
                    982: {
                    983:
1.164     schwarze  984:        if (MDOC_BLOCK == n->type)
                    985:                return(1);
                    986:
                    987:        if (MDOC_BODY == n->type) {
                    988:                if (NULL == n->child)
                    989:                        return(0);
                    990:                p->flags |= TERMP_NOLPAD | TERMP_NOSPACE;
                    991:                p->offset += term_len(p, 1) +
                    992:                    (NULL == n->prev->child ? term_strlen(p, m->name) :
                    993:                     MDOC_TEXT == n->prev->child->type ?
                    994:                        term_strlen(p, n->prev->child->string) :
                    995:                     term_len(p, 5));
                    996:                return(1);
                    997:        }
                    998:
1.125     kristaps  999:        if (NULL == n->child && NULL == m->name)
1.164     schwarze 1000:                return(0);
1.125     kristaps 1001:
1.177     schwarze 1002:        if (MDOC_HEAD == n->type)
                   1003:                synopsis_pre(p, n->parent);
1.102     kristaps 1004:
1.164     schwarze 1005:        if (MDOC_HEAD == n->type && n->next->child) {
1.185     schwarze 1006:                p->flags |= TERMP_NOSPACE | TERMP_NOBREAK;
                   1007:                p->rmargin = p->offset + term_len(p, 1);
                   1008:                if (NULL == n->child) {
                   1009:                        p->rmargin += term_strlen(p, m->name);
                   1010:                } else if (MDOC_TEXT == n->child->type) {
                   1011:                        p->rmargin += term_strlen(p, n->child->string);
                   1012:                        if (n->child->next)
                   1013:                                p->flags |= TERMP_HANG;
                   1014:                } else {
                   1015:                        p->rmargin += term_len(p, 5);
                   1016:                        p->flags |= TERMP_HANG;
                   1017:                }
1.164     schwarze 1018:        }
                   1019:
1.102     kristaps 1020:        term_fontpush(p, TERMFONT_BOLD);
1.86      kristaps 1021:        if (NULL == n->child)
                   1022:                term_word(p, m->name);
1.1       kristaps 1023:        return(1);
                   1024: }
                   1025:
                   1026:
1.164     schwarze 1027: /* ARGSUSED */
                   1028: static void
                   1029: termp_nm_post(DECL_ARGS)
                   1030: {
                   1031:
                   1032:        if (MDOC_HEAD == n->type && n->next->child) {
                   1033:                term_flushln(p);
                   1034:                p->flags &= ~(TERMP_NOBREAK | TERMP_HANG);
                   1035:        } else if (MDOC_BODY == n->type && n->child) {
                   1036:                term_flushln(p);
                   1037:                p->flags &= ~TERMP_NOLPAD;
                   1038:        }
                   1039: }
                   1040:
                   1041:
1.1       kristaps 1042: /* ARGSUSED */
                   1043: static int
                   1044: termp_fl_pre(DECL_ARGS)
                   1045: {
                   1046:
1.102     kristaps 1047:        term_fontpush(p, TERMFONT_BOLD);
1.1       kristaps 1048:        term_word(p, "\\-");
1.103     kristaps 1049:
                   1050:        if (n->child)
1.114     kristaps 1051:                p->flags |= TERMP_NOSPACE;
                   1052:        else if (n->next && n->next->line == n->line)
1.103     kristaps 1053:                p->flags |= TERMP_NOSPACE;
                   1054:
1.1       kristaps 1055:        return(1);
                   1056: }
                   1057:
                   1058:
                   1059: /* ARGSUSED */
                   1060: static int
1.184     kristaps 1061: termp__a_pre(DECL_ARGS)
                   1062: {
                   1063:
                   1064:        if (n->prev && MDOC__A == n->prev->tok)
                   1065:                if (NULL == n->next || MDOC__A != n->next->tok)
                   1066:                        term_word(p, "and");
                   1067:
                   1068:        return(1);
                   1069: }
                   1070:
                   1071:
                   1072: /* ARGSUSED */
                   1073: static int
1.61      kristaps 1074: termp_an_pre(DECL_ARGS)
                   1075: {
                   1076:
1.86      kristaps 1077:        if (NULL == n->child)
1.61      kristaps 1078:                return(1);
                   1079:
                   1080:        /*
1.85      kristaps 1081:         * If not in the AUTHORS section, `An -split' will cause
                   1082:         * newlines to occur before the author name.  If in the AUTHORS
                   1083:         * section, by default, the first `An' invocation is nosplit,
                   1084:         * then all subsequent ones, regardless of whether interspersed
                   1085:         * with other macros/text, are split.  -split, in this case,
                   1086:         * will override the condition of the implied first -nosplit.
1.61      kristaps 1087:         */
                   1088:
1.86      kristaps 1089:        if (n->sec == SEC_AUTHORS) {
1.61      kristaps 1090:                if ( ! (TERMP_ANPREC & p->flags)) {
                   1091:                        if (TERMP_SPLIT & p->flags)
                   1092:                                term_newln(p);
                   1093:                        return(1);
                   1094:                }
                   1095:                if (TERMP_NOSPLIT & p->flags)
                   1096:                        return(1);
                   1097:                term_newln(p);
                   1098:                return(1);
                   1099:        }
                   1100:
                   1101:        if (TERMP_SPLIT & p->flags)
                   1102:                term_newln(p);
                   1103:
                   1104:        return(1);
                   1105: }
                   1106:
                   1107:
                   1108: /* ARGSUSED */
                   1109: static void
                   1110: termp_an_post(DECL_ARGS)
                   1111: {
                   1112:
1.86      kristaps 1113:        if (n->child) {
                   1114:                if (SEC_AUTHORS == n->sec)
1.61      kristaps 1115:                        p->flags |= TERMP_ANPREC;
                   1116:                return;
                   1117:        }
                   1118:
1.168     kristaps 1119:        if (AUTH_split == n->data.An.auth) {
1.61      kristaps 1120:                p->flags &= ~TERMP_NOSPLIT;
                   1121:                p->flags |= TERMP_SPLIT;
1.168     kristaps 1122:        } else if (AUTH_nosplit == n->data.An.auth) {
1.61      kristaps 1123:                p->flags &= ~TERMP_SPLIT;
                   1124:                p->flags |= TERMP_NOSPLIT;
                   1125:        }
                   1126:
                   1127: }
                   1128:
                   1129:
                   1130: /* ARGSUSED */
                   1131: static int
1.1       kristaps 1132: termp_ns_pre(DECL_ARGS)
                   1133: {
                   1134:
                   1135:        p->flags |= TERMP_NOSPACE;
                   1136:        return(1);
                   1137: }
                   1138:
                   1139:
                   1140: /* ARGSUSED */
                   1141: static int
                   1142: termp_rs_pre(DECL_ARGS)
                   1143: {
                   1144:
1.86      kristaps 1145:        if (SEC_SEE_ALSO != n->sec)
1.80      kristaps 1146:                return(1);
1.86      kristaps 1147:        if (MDOC_BLOCK == n->type && n->prev)
1.1       kristaps 1148:                term_vspace(p);
                   1149:        return(1);
                   1150: }
                   1151:
                   1152:
                   1153: /* ARGSUSED */
                   1154: static int
                   1155: termp_rv_pre(DECL_ARGS)
                   1156: {
1.68      kristaps 1157:        const struct mdoc_node  *nn;
1.1       kristaps 1158:
                   1159:        term_newln(p);
                   1160:        term_word(p, "The");
                   1161:
1.86      kristaps 1162:        for (nn = n->child; nn; nn = nn->next) {
1.102     kristaps 1163:                term_fontpush(p, TERMFONT_BOLD);
1.68      kristaps 1164:                term_word(p, nn->string);
1.102     kristaps 1165:                term_fontpop(p);
1.68      kristaps 1166:                p->flags |= TERMP_NOSPACE;
                   1167:                if (nn->next && NULL == nn->next->next)
                   1168:                        term_word(p, "(), and");
                   1169:                else if (nn->next)
                   1170:                        term_word(p, "(),");
                   1171:                else
                   1172:                        term_word(p, "()");
                   1173:        }
                   1174:
1.125     kristaps 1175:        if (n->child && n->child->next)
1.68      kristaps 1176:                term_word(p, "functions return");
                   1177:        else
                   1178:                term_word(p, "function returns");
1.1       kristaps 1179:
1.68      kristaps 1180:                term_word(p, "the value 0 if successful; otherwise the value "
                   1181:                        "-1 is returned and the global variable");
1.1       kristaps 1182:
1.102     kristaps 1183:        term_fontpush(p, TERMFONT_UNDER);
1.1       kristaps 1184:        term_word(p, "errno");
1.102     kristaps 1185:        term_fontpop(p);
1.1       kristaps 1186:
                   1187:                term_word(p, "is set to indicate the error.");
1.131     kristaps 1188:        p->flags |= TERMP_SENTENCE;
1.1       kristaps 1189:
1.68      kristaps 1190:        return(0);
1.1       kristaps 1191: }
                   1192:
                   1193:
                   1194: /* ARGSUSED */
                   1195: static int
                   1196: termp_ex_pre(DECL_ARGS)
                   1197: {
1.68      kristaps 1198:        const struct mdoc_node  *nn;
1.1       kristaps 1199:
1.68      kristaps 1200:        term_word(p, "The");
1.1       kristaps 1201:
1.86      kristaps 1202:        for (nn = n->child; nn; nn = nn->next) {
1.102     kristaps 1203:                term_fontpush(p, TERMFONT_BOLD);
1.68      kristaps 1204:                term_word(p, nn->string);
1.102     kristaps 1205:                term_fontpop(p);
1.68      kristaps 1206:                p->flags |= TERMP_NOSPACE;
                   1207:                if (nn->next && NULL == nn->next->next)
                   1208:                        term_word(p, ", and");
                   1209:                else if (nn->next)
                   1210:                        term_word(p, ",");
                   1211:                else
                   1212:                        p->flags &= ~TERMP_NOSPACE;
                   1213:        }
                   1214:
1.125     kristaps 1215:        if (n->child && n->child->next)
1.68      kristaps 1216:                term_word(p, "utilities exit");
                   1217:        else
                   1218:                term_word(p, "utility exits");
                   1219:
                   1220:                term_word(p, "0 on success, and >0 if an error occurs.");
1.131     kristaps 1221:        p->flags |= TERMP_SENTENCE;
1.1       kristaps 1222:
1.68      kristaps 1223:        return(0);
1.1       kristaps 1224: }
                   1225:
                   1226:
                   1227: /* ARGSUSED */
                   1228: static int
                   1229: termp_nd_pre(DECL_ARGS)
                   1230: {
1.25      kristaps 1231:
1.86      kristaps 1232:        if (MDOC_BODY != n->type)
1.25      kristaps 1233:                return(1);
1.30      kristaps 1234:
1.27      kristaps 1235: #if defined(__OpenBSD__) || defined(__linux__)
1.41      kristaps 1236:        term_word(p, "\\(en");
1.23      kristaps 1237: #else
                   1238:        term_word(p, "\\(em");
                   1239: #endif
1.1       kristaps 1240:        return(1);
1.115     kristaps 1241: }
                   1242:
                   1243:
                   1244: /* ARGSUSED */
                   1245: static int
                   1246: termp_bl_pre(DECL_ARGS)
                   1247: {
                   1248:
                   1249:        return(MDOC_HEAD != n->type);
1.1       kristaps 1250: }
                   1251:
                   1252:
                   1253: /* ARGSUSED */
                   1254: static void
                   1255: termp_bl_post(DECL_ARGS)
                   1256: {
                   1257:
1.86      kristaps 1258:        if (MDOC_BLOCK == n->type)
1.1       kristaps 1259:                term_newln(p);
                   1260: }
                   1261:
                   1262:
                   1263: /* ARGSUSED */
                   1264: static int
                   1265: termp_xr_pre(DECL_ARGS)
                   1266: {
1.86      kristaps 1267:        const struct mdoc_node *nn;
1.1       kristaps 1268:
1.113     kristaps 1269:        if (NULL == n->child)
                   1270:                return(0);
                   1271:
                   1272:        assert(MDOC_TEXT == n->child->type);
1.86      kristaps 1273:        nn = n->child;
1.11      kristaps 1274:
1.86      kristaps 1275:        term_word(p, nn->string);
                   1276:        if (NULL == (nn = nn->next))
1.1       kristaps 1277:                return(0);
                   1278:        p->flags |= TERMP_NOSPACE;
                   1279:        term_word(p, "(");
1.86      kristaps 1280:        term_word(p, nn->string);
1.1       kristaps 1281:        term_word(p, ")");
1.86      kristaps 1282:
1.1       kristaps 1283:        return(0);
                   1284: }
                   1285:
                   1286:
1.143     kristaps 1287: /*
                   1288:  * This decides how to assert whitespace before any of the SYNOPSIS set
                   1289:  * of macros (which, as in the case of Ft/Fo and Ft/Fn, may contain
                   1290:  * macro combos).
                   1291:  */
                   1292: static void
                   1293: synopsis_pre(struct termp *p, const struct mdoc_node *n)
                   1294: {
                   1295:        /*
                   1296:         * Obviously, if we're not in a SYNOPSIS or no prior macros
                   1297:         * exist, do nothing.
                   1298:         */
1.160     kristaps 1299:        if (NULL == n->prev || ! (MDOC_SYNPRETTY & n->flags))
1.143     kristaps 1300:                return;
                   1301:
                   1302:        /*
                   1303:         * If we're the second in a pair of like elements, emit our
                   1304:         * newline and return.  UNLESS we're `Fo', `Fn', `Fn', in which
                   1305:         * case we soldier on.
                   1306:         */
                   1307:        if (n->prev->tok == n->tok &&
                   1308:                        MDOC_Ft != n->tok &&
                   1309:                        MDOC_Fo != n->tok &&
                   1310:                        MDOC_Fn != n->tok) {
                   1311:                term_newln(p);
                   1312:                return;
                   1313:        }
                   1314:
                   1315:        /*
                   1316:         * If we're one of the SYNOPSIS set and non-like pair-wise after
                   1317:         * another (or Fn/Fo, which we've let slip through) then assert
                   1318:         * vertical space, else only newline and move on.
                   1319:         */
                   1320:        switch (n->prev->tok) {
                   1321:        case (MDOC_Fd):
                   1322:                /* FALLTHROUGH */
                   1323:        case (MDOC_Fn):
                   1324:                /* FALLTHROUGH */
                   1325:        case (MDOC_Fo):
                   1326:                /* FALLTHROUGH */
                   1327:        case (MDOC_In):
                   1328:                /* FALLTHROUGH */
                   1329:        case (MDOC_Vt):
                   1330:                term_vspace(p);
                   1331:                break;
                   1332:        case (MDOC_Ft):
                   1333:                if (MDOC_Fn != n->tok && MDOC_Fo != n->tok) {
                   1334:                        term_vspace(p);
                   1335:                        break;
                   1336:                }
                   1337:                /* FALLTHROUGH */
                   1338:        default:
                   1339:                term_newln(p);
                   1340:                break;
                   1341:        }
                   1342: }
                   1343:
                   1344:
1.110     kristaps 1345: static int
                   1346: termp_vt_pre(DECL_ARGS)
                   1347: {
                   1348:
1.143     kristaps 1349:        if (MDOC_ELEM == n->type) {
                   1350:                synopsis_pre(p, n);
1.110     kristaps 1351:                return(termp_under_pre(p, pair, m, n));
1.143     kristaps 1352:        } else if (MDOC_BLOCK == n->type) {
                   1353:                synopsis_pre(p, n);
                   1354:                return(1);
                   1355:        } else if (MDOC_HEAD == n->type)
1.110     kristaps 1356:                return(0);
                   1357:
                   1358:        return(termp_under_pre(p, pair, m, n));
                   1359: }
                   1360:
                   1361:
1.1       kristaps 1362: /* ARGSUSED */
                   1363: static int
1.69      kristaps 1364: termp_bold_pre(DECL_ARGS)
1.1       kristaps 1365: {
                   1366:
1.102     kristaps 1367:        term_fontpush(p, TERMFONT_BOLD);
1.1       kristaps 1368:        return(1);
                   1369: }
                   1370:
                   1371:
                   1372: /* ARGSUSED */
1.143     kristaps 1373: static int
                   1374: termp_fd_pre(DECL_ARGS)
1.1       kristaps 1375: {
                   1376:
1.143     kristaps 1377:        synopsis_pre(p, n);
                   1378:        return(termp_bold_pre(p, pair, m, n));
1.1       kristaps 1379: }
                   1380:
                   1381:
                   1382: /* ARGSUSED */
                   1383: static int
                   1384: termp_sh_pre(DECL_ARGS)
                   1385: {
1.85      kristaps 1386:
                   1387:        /* No vspace between consecutive `Sh' calls. */
                   1388:
1.86      kristaps 1389:        switch (n->type) {
1.65      kristaps 1390:        case (MDOC_BLOCK):
1.86      kristaps 1391:                if (n->prev && MDOC_Sh == n->prev->tok)
                   1392:                        if (NULL == n->prev->body->child)
1.65      kristaps 1393:                                break;
                   1394:                term_vspace(p);
                   1395:                break;
1.1       kristaps 1396:        case (MDOC_HEAD):
1.102     kristaps 1397:                term_fontpush(p, TERMFONT_BOLD);
1.1       kristaps 1398:                break;
                   1399:        case (MDOC_BODY):
1.157     kristaps 1400:                p->offset = term_len(p, INDENT);
1.1       kristaps 1401:                break;
                   1402:        default:
                   1403:                break;
                   1404:        }
                   1405:        return(1);
                   1406: }
                   1407:
                   1408:
                   1409: /* ARGSUSED */
                   1410: static void
                   1411: termp_sh_post(DECL_ARGS)
                   1412: {
                   1413:
1.86      kristaps 1414:        switch (n->type) {
1.1       kristaps 1415:        case (MDOC_HEAD):
                   1416:                term_newln(p);
                   1417:                break;
                   1418:        case (MDOC_BODY):
                   1419:                term_newln(p);
                   1420:                p->offset = 0;
                   1421:                break;
                   1422:        default:
                   1423:                break;
                   1424:        }
                   1425: }
                   1426:
                   1427:
                   1428: /* ARGSUSED */
                   1429: static int
                   1430: termp_bt_pre(DECL_ARGS)
                   1431: {
                   1432:
                   1433:        term_word(p, "is currently in beta test.");
1.131     kristaps 1434:        p->flags |= TERMP_SENTENCE;
1.81      kristaps 1435:        return(0);
1.1       kristaps 1436: }
                   1437:
                   1438:
                   1439: /* ARGSUSED */
                   1440: static void
                   1441: termp_lb_post(DECL_ARGS)
                   1442: {
                   1443:
1.122     kristaps 1444:        if (SEC_LIBRARY == n->sec && MDOC_LINE & n->flags)
1.81      kristaps 1445:                term_newln(p);
1.1       kristaps 1446: }
                   1447:
                   1448:
                   1449: /* ARGSUSED */
                   1450: static int
                   1451: termp_ud_pre(DECL_ARGS)
                   1452: {
                   1453:
                   1454:        term_word(p, "currently under development.");
1.131     kristaps 1455:        p->flags |= TERMP_SENTENCE;
1.86      kristaps 1456:        return(0);
1.1       kristaps 1457: }
                   1458:
                   1459:
                   1460: /* ARGSUSED */
                   1461: static int
                   1462: termp_d1_pre(DECL_ARGS)
                   1463: {
                   1464:
1.86      kristaps 1465:        if (MDOC_BLOCK != n->type)
1.1       kristaps 1466:                return(1);
                   1467:        term_newln(p);
1.157     kristaps 1468:        p->offset += term_len(p, (INDENT + 1));
1.1       kristaps 1469:        return(1);
                   1470: }
                   1471:
                   1472:
                   1473: /* ARGSUSED */
                   1474: static void
                   1475: termp_d1_post(DECL_ARGS)
                   1476: {
                   1477:
1.86      kristaps 1478:        if (MDOC_BLOCK != n->type)
1.1       kristaps 1479:                return;
                   1480:        term_newln(p);
                   1481: }
                   1482:
                   1483:
                   1484: /* ARGSUSED */
                   1485: static int
                   1486: termp_ft_pre(DECL_ARGS)
                   1487: {
                   1488:
1.141     kristaps 1489:        /* NB: MDOC_LINE does not effect this! */
1.143     kristaps 1490:        synopsis_pre(p, n);
1.102     kristaps 1491:        term_fontpush(p, TERMFONT_UNDER);
1.1       kristaps 1492:        return(1);
                   1493: }
                   1494:
                   1495:
                   1496: /* ARGSUSED */
                   1497: static int
                   1498: termp_fn_pre(DECL_ARGS)
                   1499: {
1.86      kristaps 1500:        const struct mdoc_node  *nn;
1.1       kristaps 1501:
1.143     kristaps 1502:        synopsis_pre(p, n);
1.139     kristaps 1503:
1.102     kristaps 1504:        term_fontpush(p, TERMFONT_BOLD);
1.86      kristaps 1505:        term_word(p, n->child->string);
1.102     kristaps 1506:        term_fontpop(p);
1.1       kristaps 1507:
                   1508:        p->flags |= TERMP_NOSPACE;
                   1509:        term_word(p, "(");
                   1510:
1.86      kristaps 1511:        for (nn = n->child->next; nn; nn = nn->next) {
1.102     kristaps 1512:                term_fontpush(p, TERMFONT_UNDER);
1.86      kristaps 1513:                term_word(p, nn->string);
1.102     kristaps 1514:                term_fontpop(p);
                   1515:
1.86      kristaps 1516:                if (nn->next)
1.1       kristaps 1517:                        term_word(p, ",");
                   1518:        }
                   1519:
                   1520:        term_word(p, ")");
                   1521:
1.160     kristaps 1522:        if (MDOC_SYNPRETTY & n->flags)
1.1       kristaps 1523:                term_word(p, ";");
                   1524:
                   1525:        return(0);
                   1526: }
                   1527:
                   1528:
                   1529: /* ARGSUSED */
                   1530: static int
                   1531: termp_fa_pre(DECL_ARGS)
                   1532: {
1.86      kristaps 1533:        const struct mdoc_node  *nn;
1.1       kristaps 1534:
1.86      kristaps 1535:        if (n->parent->tok != MDOC_Fo) {
1.102     kristaps 1536:                term_fontpush(p, TERMFONT_UNDER);
1.1       kristaps 1537:                return(1);
                   1538:        }
                   1539:
1.86      kristaps 1540:        for (nn = n->child; nn; nn = nn->next) {
1.102     kristaps 1541:                term_fontpush(p, TERMFONT_UNDER);
1.86      kristaps 1542:                term_word(p, nn->string);
1.102     kristaps 1543:                term_fontpop(p);
                   1544:
1.86      kristaps 1545:                if (nn->next)
1.1       kristaps 1546:                        term_word(p, ",");
                   1547:        }
                   1548:
1.86      kristaps 1549:        if (n->child && n->next && n->next->tok == MDOC_Fa)
1.1       kristaps 1550:                term_word(p, ",");
                   1551:
                   1552:        return(0);
                   1553: }
                   1554:
                   1555:
                   1556: /* ARGSUSED */
                   1557: static int
                   1558: termp_bd_pre(DECL_ARGS)
                   1559: {
1.179     kristaps 1560:        size_t                   tabwidth, rm, rmax;
1.85      kristaps 1561:        const struct mdoc_node  *nn;
1.1       kristaps 1562:
1.86      kristaps 1563:        if (MDOC_BLOCK == n->type) {
1.151     kristaps 1564:                print_bvspace(p, n, n);
1.54      kristaps 1565:                return(1);
1.116     kristaps 1566:        } else if (MDOC_HEAD == n->type)
                   1567:                return(0);
1.1       kristaps 1568:
1.165     kristaps 1569:        assert(n->data.Bd);
                   1570:        if (n->data.Bd->offs)
                   1571:                p->offset += a2offs(p, n->data.Bd->offs);
1.85      kristaps 1572:
                   1573:        /*
                   1574:         * If -ragged or -filled are specified, the block does nothing
                   1575:         * but change the indentation.  If -unfilled or -literal are
                   1576:         * specified, text is printed exactly as entered in the display:
                   1577:         * for macro lines, a newline is appended to the line.  Blank
                   1578:         * lines are allowed.
                   1579:         */
1.60      kristaps 1580:
1.165     kristaps 1581:        if (DISP_literal != n->data.Bd->type &&
                   1582:                        DISP_unfilled != n->data.Bd->type)
1.1       kristaps 1583:                return(1);
                   1584:
1.129     schwarze 1585:        tabwidth = p->tabwidth;
1.157     kristaps 1586:        p->tabwidth = term_len(p, 8);
1.119     kristaps 1587:        rm = p->rmargin;
                   1588:        rmax = p->maxrmargin;
1.120     kristaps 1589:        p->rmargin = p->maxrmargin = TERM_MAXMARGIN;
1.118     kristaps 1590:
1.86      kristaps 1591:        for (nn = n->child; nn; nn = nn->next) {
1.102     kristaps 1592:                print_mdoc_node(p, pair, m, nn);
1.190     kristaps 1593:                /*
                   1594:                 * If the printed node flushes its own line, then we
                   1595:                 * needn't do it here as well.  This is hacky, but the
                   1596:                 * notion of selective eoln whitespace is pretty dumb
                   1597:                 * anyway, so don't sweat it.
                   1598:                 */
                   1599:                switch (nn->tok) {
1.193     kristaps 1600:                case (MDOC_Sm):
                   1601:                        /* FALLTHROUGH */
1.190     kristaps 1602:                case (MDOC_br):
                   1603:                        /* FALLTHROUGH */
                   1604:                case (MDOC_sp):
                   1605:                        /* FALLTHROUGH */
                   1606:                case (MDOC_Bl):
1.196     kristaps 1607:                        /* FALLTHROUGH */
                   1608:                case (MDOC_D1):
                   1609:                        /* FALLTHROUGH */
                   1610:                case (MDOC_Dl):
1.190     kristaps 1611:                        /* FALLTHROUGH */
                   1612:                case (MDOC_Lp):
                   1613:                        /* FALLTHROUGH */
                   1614:                case (MDOC_Pp):
                   1615:                        continue;
                   1616:                default:
                   1617:                        break;
                   1618:                }
1.180     schwarze 1619:                if (nn->next && nn->next->line == nn->line)
                   1620:                        continue;
                   1621:                term_flushln(p);
                   1622:                p->flags |= TERMP_NOSPACE;
1.1       kristaps 1623:        }
1.147     kristaps 1624:
1.129     schwarze 1625:        p->tabwidth = tabwidth;
1.119     kristaps 1626:        p->rmargin = rm;
                   1627:        p->maxrmargin = rmax;
1.1       kristaps 1628:        return(0);
                   1629: }
                   1630:
                   1631:
                   1632: /* ARGSUSED */
                   1633: static void
                   1634: termp_bd_post(DECL_ARGS)
                   1635: {
1.119     kristaps 1636:        size_t           rm, rmax;
1.1       kristaps 1637:
1.86      kristaps 1638:        if (MDOC_BODY != n->type)
1.1       kristaps 1639:                return;
1.118     kristaps 1640:
1.119     kristaps 1641:        rm = p->rmargin;
                   1642:        rmax = p->maxrmargin;
1.118     kristaps 1643:
1.165     kristaps 1644:        assert(n->data.Bd);
                   1645:        if (DISP_literal == n->data.Bd->type ||
                   1646:                        DISP_unfilled == n->data.Bd->type)
1.120     kristaps 1647:                p->rmargin = p->maxrmargin = TERM_MAXMARGIN;
1.118     kristaps 1648:
1.60      kristaps 1649:        p->flags |= TERMP_NOSPACE;
1.130     schwarze 1650:        term_newln(p);
1.118     kristaps 1651:
1.119     kristaps 1652:        p->rmargin = rm;
                   1653:        p->maxrmargin = rmax;
1.1       kristaps 1654: }
                   1655:
                   1656:
                   1657: /* ARGSUSED */
                   1658: static void
                   1659: termp_bx_post(DECL_ARGS)
                   1660: {
                   1661:
1.86      kristaps 1662:        if (n->child)
1.1       kristaps 1663:                p->flags |= TERMP_NOSPACE;
                   1664:        term_word(p, "BSD");
                   1665: }
                   1666:
                   1667:
                   1668: /* ARGSUSED */
                   1669: static int
1.26      kristaps 1670: termp_xx_pre(DECL_ARGS)
1.1       kristaps 1671: {
1.26      kristaps 1672:        const char      *pp;
1.1       kristaps 1673:
1.26      kristaps 1674:        pp = NULL;
1.86      kristaps 1675:        switch (n->tok) {
1.26      kristaps 1676:        case (MDOC_Bsx):
1.194     schwarze 1677:                pp = "BSD/OS";
1.26      kristaps 1678:                break;
                   1679:        case (MDOC_Dx):
1.100     kristaps 1680:                pp = "DragonFly";
1.26      kristaps 1681:                break;
                   1682:        case (MDOC_Fx):
                   1683:                pp = "FreeBSD";
                   1684:                break;
                   1685:        case (MDOC_Nx):
                   1686:                pp = "NetBSD";
                   1687:                break;
                   1688:        case (MDOC_Ox):
                   1689:                pp = "OpenBSD";
                   1690:                break;
                   1691:        case (MDOC_Ux):
                   1692:                pp = "UNIX";
                   1693:                break;
                   1694:        default:
                   1695:                break;
                   1696:        }
1.1       kristaps 1697:
1.26      kristaps 1698:        assert(pp);
                   1699:        term_word(p, pp);
1.1       kristaps 1700:        return(1);
                   1701: }
                   1702:
                   1703:
                   1704: /* ARGSUSED */
                   1705: static int
1.192     schwarze 1706: termp_igndelim_pre(DECL_ARGS)
1.1       kristaps 1707: {
                   1708:
                   1709:        p->flags |= TERMP_IGNDELIM;
                   1710:        return(1);
                   1711: }
                   1712:
                   1713:
                   1714: /* ARGSUSED */
                   1715: static void
                   1716: termp_pf_post(DECL_ARGS)
                   1717: {
                   1718:
                   1719:        p->flags |= TERMP_NOSPACE;
                   1720: }
                   1721:
                   1722:
                   1723: /* ARGSUSED */
                   1724: static int
                   1725: termp_ss_pre(DECL_ARGS)
                   1726: {
                   1727:
1.86      kristaps 1728:        switch (n->type) {
1.1       kristaps 1729:        case (MDOC_BLOCK):
                   1730:                term_newln(p);
1.86      kristaps 1731:                if (n->prev)
1.1       kristaps 1732:                        term_vspace(p);
                   1733:                break;
                   1734:        case (MDOC_HEAD):
1.102     kristaps 1735:                term_fontpush(p, TERMFONT_BOLD);
1.157     kristaps 1736:                p->offset = term_len(p, HALFINDENT);
1.1       kristaps 1737:                break;
                   1738:        default:
                   1739:                break;
                   1740:        }
                   1741:
                   1742:        return(1);
                   1743: }
                   1744:
                   1745:
                   1746: /* ARGSUSED */
                   1747: static void
                   1748: termp_ss_post(DECL_ARGS)
                   1749: {
                   1750:
1.86      kristaps 1751:        if (MDOC_HEAD == n->type)
1.1       kristaps 1752:                term_newln(p);
                   1753: }
                   1754:
                   1755:
                   1756: /* ARGSUSED */
                   1757: static int
                   1758: termp_cd_pre(DECL_ARGS)
                   1759: {
                   1760:
1.143     kristaps 1761:        synopsis_pre(p, n);
1.102     kristaps 1762:        term_fontpush(p, TERMFONT_BOLD);
1.1       kristaps 1763:        return(1);
                   1764: }
                   1765:
                   1766:
                   1767: /* ARGSUSED */
                   1768: static int
                   1769: termp_in_pre(DECL_ARGS)
                   1770: {
1.142     schwarze 1771:
1.143     kristaps 1772:        synopsis_pre(p, n);
1.1       kristaps 1773:
1.160     kristaps 1774:        if (MDOC_SYNPRETTY & n->flags && MDOC_LINE & n->flags) {
1.138     kristaps 1775:                term_fontpush(p, TERMFONT_BOLD);
1.22      kristaps 1776:                term_word(p, "#include");
1.138     kristaps 1777:                term_word(p, "<");
                   1778:        } else {
                   1779:                term_word(p, "<");
                   1780:                term_fontpush(p, TERMFONT_UNDER);
                   1781:        }
1.22      kristaps 1782:
1.1       kristaps 1783:        p->flags |= TERMP_NOSPACE;
                   1784:        return(1);
                   1785: }
                   1786:
                   1787:
                   1788: /* ARGSUSED */
                   1789: static void
                   1790: termp_in_post(DECL_ARGS)
                   1791: {
                   1792:
1.160     kristaps 1793:        if (MDOC_SYNPRETTY & n->flags)
1.138     kristaps 1794:                term_fontpush(p, TERMFONT_BOLD);
                   1795:
1.79      kristaps 1796:        p->flags |= TERMP_NOSPACE;
1.1       kristaps 1797:        term_word(p, ">");
                   1798:
1.160     kristaps 1799:        if (MDOC_SYNPRETTY & n->flags)
1.138     kristaps 1800:                term_fontpop(p);
1.1       kristaps 1801: }
                   1802:
                   1803:
                   1804: /* ARGSUSED */
                   1805: static int
1.45      kristaps 1806: termp_sp_pre(DECL_ARGS)
                   1807: {
1.91      kristaps 1808:        size_t           i, len;
1.45      kristaps 1809:
1.86      kristaps 1810:        switch (n->tok) {
1.76      kristaps 1811:        case (MDOC_sp):
1.157     kristaps 1812:                len = n->child ? a2height(p, n->child->string) : 1;
1.76      kristaps 1813:                break;
                   1814:        case (MDOC_br):
                   1815:                len = 0;
                   1816:                break;
                   1817:        default:
                   1818:                len = 1;
                   1819:                break;
1.45      kristaps 1820:        }
                   1821:
                   1822:        if (0 == len)
                   1823:                term_newln(p);
                   1824:        for (i = 0; i < len; i++)
                   1825:                term_vspace(p);
                   1826:
                   1827:        return(0);
                   1828: }
                   1829:
                   1830:
1.189     kristaps 1831: /* ARGSUSED */
1.45      kristaps 1832: static int
1.188     kristaps 1833: termp_quote_pre(DECL_ARGS)
1.1       kristaps 1834: {
                   1835:
1.86      kristaps 1836:        if (MDOC_BODY != n->type)
1.1       kristaps 1837:                return(1);
                   1838:
1.188     kristaps 1839:        switch (n->tok) {
                   1840:        case (MDOC_Ao):
                   1841:                /* FALLTHROUGH */
                   1842:        case (MDOC_Aq):
                   1843:                term_word(p, "<");
                   1844:                break;
                   1845:        case (MDOC_Bro):
                   1846:                /* FALLTHROUGH */
                   1847:        case (MDOC_Brq):
                   1848:                term_word(p, "{");
                   1849:                break;
                   1850:        case (MDOC_Oo):
                   1851:                /* FALLTHROUGH */
                   1852:        case (MDOC_Op):
                   1853:                /* FALLTHROUGH */
                   1854:        case (MDOC_Bo):
                   1855:                /* FALLTHROUGH */
                   1856:        case (MDOC_Bq):
                   1857:                term_word(p, "[");
                   1858:                break;
                   1859:        case (MDOC_Do):
                   1860:                /* FALLTHROUGH */
                   1861:        case (MDOC_Dq):
                   1862:                term_word(p, "``");
                   1863:                break;
                   1864:        case (MDOC_Po):
                   1865:                /* FALLTHROUGH */
                   1866:        case (MDOC_Pq):
                   1867:                term_word(p, "(");
                   1868:                break;
                   1869:        case (MDOC_Qo):
                   1870:                /* FALLTHROUGH */
                   1871:        case (MDOC_Qq):
                   1872:                term_word(p, "\"");
                   1873:                break;
                   1874:        case (MDOC_Ql):
                   1875:                /* FALLTHROUGH */
                   1876:        case (MDOC_So):
                   1877:                /* FALLTHROUGH */
                   1878:        case (MDOC_Sq):
                   1879:                term_word(p, "`");
                   1880:                break;
                   1881:        default:
                   1882:                abort();
                   1883:                /* NOTREACHED */
                   1884:        }
1.1       kristaps 1885:
                   1886:        p->flags |= TERMP_NOSPACE;
                   1887:        return(1);
                   1888: }
                   1889:
                   1890:
1.189     kristaps 1891: /* ARGSUSED */
1.1       kristaps 1892: static void
1.188     kristaps 1893: termp_quote_post(DECL_ARGS)
1.1       kristaps 1894: {
                   1895:
1.86      kristaps 1896:        if (MDOC_BODY != n->type)
1.1       kristaps 1897:                return;
                   1898:
                   1899:        p->flags |= TERMP_NOSPACE;
                   1900:
1.188     kristaps 1901:        switch (n->tok) {
                   1902:        case (MDOC_Ao):
                   1903:                /* FALLTHROUGH */
                   1904:        case (MDOC_Aq):
                   1905:                term_word(p, ">");
                   1906:                break;
                   1907:        case (MDOC_Bro):
                   1908:                /* FALLTHROUGH */
                   1909:        case (MDOC_Brq):
                   1910:                term_word(p, "}");
                   1911:                break;
                   1912:        case (MDOC_Oo):
                   1913:                /* FALLTHROUGH */
                   1914:        case (MDOC_Op):
                   1915:                /* FALLTHROUGH */
                   1916:        case (MDOC_Bo):
                   1917:                /* FALLTHROUGH */
                   1918:        case (MDOC_Bq):
                   1919:                term_word(p, "]");
                   1920:                break;
                   1921:        case (MDOC_Do):
                   1922:                /* FALLTHROUGH */
                   1923:        case (MDOC_Dq):
                   1924:                term_word(p, "''");
                   1925:                break;
                   1926:        case (MDOC_Po):
                   1927:                /* FALLTHROUGH */
                   1928:        case (MDOC_Pq):
                   1929:                term_word(p, ")");
                   1930:                break;
                   1931:        case (MDOC_Qo):
                   1932:                /* FALLTHROUGH */
                   1933:        case (MDOC_Qq):
                   1934:                term_word(p, "\"");
                   1935:                break;
                   1936:        case (MDOC_Ql):
                   1937:                /* FALLTHROUGH */
                   1938:        case (MDOC_So):
                   1939:                /* FALLTHROUGH */
                   1940:        case (MDOC_Sq):
                   1941:                term_word(p, "'");
                   1942:                break;
                   1943:        default:
                   1944:                abort();
                   1945:                /* NOTREACHED */
                   1946:        }
1.1       kristaps 1947: }
                   1948:
                   1949:
                   1950: /* ARGSUSED */
                   1951: static int
                   1952: termp_fo_pre(DECL_ARGS)
                   1953: {
                   1954:
1.141     kristaps 1955:        if (MDOC_BLOCK == n->type) {
1.143     kristaps 1956:                synopsis_pre(p, n);
1.141     kristaps 1957:                return(1);
                   1958:        } else if (MDOC_BODY == n->type) {
1.33      kristaps 1959:                p->flags |= TERMP_NOSPACE;
1.1       kristaps 1960:                term_word(p, "(");
                   1961:                return(1);
1.141     kristaps 1962:        }
                   1963:
1.169     kristaps 1964:        if (NULL == n->child)
                   1965:                return(0);
                   1966:
1.141     kristaps 1967:        /* XXX: we drop non-initial arguments as per groff. */
1.1       kristaps 1968:
1.141     kristaps 1969:        assert(n->child->string);
1.102     kristaps 1970:        term_fontpush(p, TERMFONT_BOLD);
1.141     kristaps 1971:        term_word(p, n->child->string);
1.1       kristaps 1972:        return(0);
                   1973: }
                   1974:
                   1975:
                   1976: /* ARGSUSED */
                   1977: static void
                   1978: termp_fo_post(DECL_ARGS)
                   1979: {
                   1980:
1.143     kristaps 1981:        if (MDOC_BODY != n->type)
                   1982:                return;
                   1983:
                   1984:        term_word(p, ")");
                   1985:
1.188     kristaps 1986:        if (MDOC_SYNPRETTY & n->flags)
1.143     kristaps 1987:                term_word(p, ";");
1.1       kristaps 1988: }
                   1989:
                   1990:
                   1991: /* ARGSUSED */
                   1992: static int
                   1993: termp_bf_pre(DECL_ARGS)
                   1994: {
                   1995:
1.86      kristaps 1996:        if (MDOC_HEAD == n->type)
1.1       kristaps 1997:                return(0);
1.86      kristaps 1998:        else if (MDOC_BLOCK != n->type)
1.1       kristaps 1999:                return(1);
                   2000:
1.167     kristaps 2001:        assert(n->data.Bf);
1.1       kristaps 2002:
1.167     kristaps 2003:        if (FONT_Em == n->data.Bf->font)
1.102     kristaps 2004:                term_fontpush(p, TERMFONT_UNDER);
1.167     kristaps 2005:        else if (FONT_Sy == n->data.Bf->font)
1.102     kristaps 2006:                term_fontpush(p, TERMFONT_BOLD);
1.167     kristaps 2007:        else
1.102     kristaps 2008:                term_fontpush(p, TERMFONT_NONE);
1.1       kristaps 2009:
                   2010:        return(1);
                   2011: }
                   2012:
                   2013:
                   2014: /* ARGSUSED */
                   2015: static int
                   2016: termp_sm_pre(DECL_ARGS)
                   2017: {
                   2018:
1.86      kristaps 2019:        assert(n->child && MDOC_TEXT == n->child->type);
1.174     schwarze 2020:        if (0 == strcmp("on", n->child->string)) {
                   2021:                if (p->col)
                   2022:                        p->flags &= ~TERMP_NOSPACE;
1.1       kristaps 2023:                p->flags &= ~TERMP_NONOSPACE;
1.174     schwarze 2024:        } else
1.1       kristaps 2025:                p->flags |= TERMP_NONOSPACE;
                   2026:
                   2027:        return(0);
                   2028: }
                   2029:
                   2030:
                   2031: /* ARGSUSED */
                   2032: static int
                   2033: termp_ap_pre(DECL_ARGS)
                   2034: {
                   2035:
                   2036:        p->flags |= TERMP_NOSPACE;
1.188     kristaps 2037:        term_word(p, "'");
1.1       kristaps 2038:        p->flags |= TERMP_NOSPACE;
                   2039:        return(1);
                   2040: }
                   2041:
                   2042:
                   2043: /* ARGSUSED */
                   2044: static void
                   2045: termp____post(DECL_ARGS)
                   2046: {
1.184     kristaps 2047:
                   2048:        /*
                   2049:         * Handle lists of authors.  In general, print each followed by
                   2050:         * a comma.  Don't print the comma if there are only two
                   2051:         * authors.
                   2052:         */
                   2053:        if (MDOC__A == n->tok && n->next && MDOC__A == n->next->tok)
                   2054:                if (NULL == n->next->next || MDOC__A != n->next->next->tok)
                   2055:                        if (NULL == n->prev || MDOC__A != n->prev->tok)
                   2056:                                return;
1.1       kristaps 2057:
1.95      kristaps 2058:        /* TODO: %U. */
                   2059:
1.187     kristaps 2060:        if (NULL == n->parent || MDOC_Rs != n->parent->tok)
                   2061:                return;
                   2062:
1.186     kristaps 2063:        if (NULL == n->next) {
                   2064:                term_word(p, ".");
                   2065:                p->flags |= TERMP_SENTENCE;
                   2066:        } else
                   2067:                term_word(p, ",");
1.1       kristaps 2068: }
                   2069:
                   2070:
                   2071: /* ARGSUSED */
                   2072: static int
1.102     kristaps 2073: termp_li_pre(DECL_ARGS)
                   2074: {
                   2075:
                   2076:        term_fontpush(p, TERMFONT_NONE);
                   2077:        return(1);
                   2078: }
                   2079:
                   2080:
                   2081: /* ARGSUSED */
                   2082: static int
1.1       kristaps 2083: termp_lk_pre(DECL_ARGS)
                   2084: {
1.181     kristaps 2085:        const struct mdoc_node *nn, *sv;
1.1       kristaps 2086:
1.102     kristaps 2087:        term_fontpush(p, TERMFONT_UNDER);
1.181     kristaps 2088:
                   2089:        nn = sv = n->child;
1.96      kristaps 2090:
1.195     kristaps 2091:        if (NULL == nn || NULL == nn->next)
1.12      kristaps 2092:                return(1);
                   2093:
1.181     kristaps 2094:        for (nn = nn->next; nn; nn = nn->next)
                   2095:                term_word(p, nn->string);
                   2096:
1.102     kristaps 2097:        term_fontpop(p);
1.96      kristaps 2098:
1.1       kristaps 2099:        term_word(p, ":");
                   2100:
1.102     kristaps 2101:        term_fontpush(p, TERMFONT_BOLD);
1.181     kristaps 2102:        term_word(p, sv->string);
1.102     kristaps 2103:        term_fontpop(p);
1.12      kristaps 2104:
1.1       kristaps 2105:        return(0);
                   2106: }
                   2107:
1.159     schwarze 2108:
                   2109: /* ARGSUSED */
                   2110: static int
                   2111: termp_bk_pre(DECL_ARGS)
                   2112: {
                   2113:
1.161     schwarze 2114:        switch (n->type) {
                   2115:        case (MDOC_BLOCK):
1.166     kristaps 2116:                break;
1.161     schwarze 2117:        case (MDOC_HEAD):
                   2118:                return(0);
                   2119:        case (MDOC_BODY):
                   2120:                p->flags |= TERMP_PREKEEP;
1.166     kristaps 2121:                break;
1.161     schwarze 2122:        default:
                   2123:                abort();
1.166     kristaps 2124:                /* NOTREACHED */
1.161     schwarze 2125:        }
1.166     kristaps 2126:
                   2127:        return(1);
1.159     schwarze 2128: }
                   2129:
                   2130:
                   2131: /* ARGSUSED */
                   2132: static void
                   2133: termp_bk_post(DECL_ARGS)
                   2134: {
                   2135:
1.161     schwarze 2136:        if (MDOC_BODY == n->type)
                   2137:                p->flags &= ~(TERMP_KEEP | TERMP_PREKEEP);
1.159     schwarze 2138: }
1.1       kristaps 2139:
                   2140: /* ARGSUSED */
                   2141: static int
1.69      kristaps 2142: termp_under_pre(DECL_ARGS)
1.1       kristaps 2143: {
                   2144:
1.102     kristaps 2145:        term_fontpush(p, TERMFONT_UNDER);
1.84      kristaps 2146:        return(1);
                   2147: }

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