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Annotation of mandoc/mdoc_term.c, Revision 1.154

1.154   ! kristaps    1: /*     $Id: mdoc_term.c,v 1.153 2010/06/13 21:02:49 kristaps Exp $ */
1.1       kristaps    2: /*
1.7       kristaps    3:  * Copyright (c) 2008, 2009 Kristaps Dzonsons <kristaps@kth.se>
1.1       kristaps    4:  *
                      5:  * Permission to use, copy, modify, and distribute this software for any
1.6       kristaps    6:  * purpose with or without fee is hereby granted, provided that the above
                      7:  * copyright notice and this permission notice appear in all copies.
1.1       kristaps    8:  *
1.6       kristaps    9:  * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
                     10:  * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
                     11:  * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
                     12:  * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
                     13:  * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
                     14:  * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
                     15:  * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
1.1       kristaps   16:  */
1.107     kristaps   17: #ifdef HAVE_CONFIG_H
                     18: #include "config.h"
                     19: #endif
                     20:
1.1       kristaps   21: #include <sys/types.h>
                     22:
                     23: #include <assert.h>
                     24: #include <ctype.h>
1.118     kristaps   25: #include <stdint.h>
1.1       kristaps   26: #include <stdio.h>
                     27: #include <stdlib.h>
                     28: #include <string.h>
                     29:
1.125     kristaps   30: #include "mandoc.h"
1.92      kristaps   31: #include "out.h"
1.1       kristaps   32: #include "term.h"
                     33: #include "mdoc.h"
1.89      kristaps   34: #include "chars.h"
                     35: #include "main.h"
1.1       kristaps   36:
1.66      kristaps   37: #define        INDENT            5
                     38: #define        HALFINDENT        3
                     39:
1.1       kristaps   40: struct termpair {
                     41:        struct termpair  *ppair;
1.31      kristaps   42:        int               count;
1.1       kristaps   43: };
                     44:
1.31      kristaps   45: #define        DECL_ARGS struct termp *p, \
                     46:                  struct termpair *pair, \
1.86      kristaps   47:                  const struct mdoc_meta *m, \
                     48:                  const struct mdoc_node *n
1.1       kristaps   49:
                     50: struct termact {
                     51:        int     (*pre)(DECL_ARGS);
                     52:        void    (*post)(DECL_ARGS);
                     53: };
                     54:
1.154   ! kristaps   55: static size_t    a2width(const char *);
1.96      kristaps   56: static size_t    a2height(const struct mdoc_node *);
1.148     kristaps   57: static size_t    a2offs(const char *);
1.96      kristaps   58:
                     59: static int       arg_hasattr(int, const struct mdoc_node *);
                     60: static int       arg_getattrs(const int *, int *, size_t,
                     61:                        const struct mdoc_node *);
                     62: static int       arg_getattr(int, const struct mdoc_node *);
                     63: static void      print_bvspace(struct termp *,
1.151     kristaps   64:                        const struct mdoc_node *,
1.96      kristaps   65:                        const struct mdoc_node *);
1.102     kristaps   66: static void      print_mdoc_node(DECL_ARGS);
1.145     kristaps   67: static void      print_mdoc_nodelist(DECL_ARGS);
1.144     kristaps   68: static void      print_mdoc_head(struct termp *, const void *);
1.145     kristaps   69: static void      print_mdoc_foot(struct termp *, const void *);
1.143     kristaps   70: static void      synopsis_pre(struct termp *,
                     71:                        const struct mdoc_node *);
1.96      kristaps   72:
1.31      kristaps   73: static void      termp____post(DECL_ARGS);
1.61      kristaps   74: static void      termp_an_post(DECL_ARGS);
1.31      kristaps   75: static void      termp_aq_post(DECL_ARGS);
                     76: static void      termp_bd_post(DECL_ARGS);
                     77: static void      termp_bl_post(DECL_ARGS);
                     78: static void      termp_bq_post(DECL_ARGS);
                     79: static void      termp_brq_post(DECL_ARGS);
                     80: static void      termp_bx_post(DECL_ARGS);
                     81: static void      termp_d1_post(DECL_ARGS);
                     82: static void      termp_dq_post(DECL_ARGS);
1.143     kristaps   83: static int       termp_fd_pre(DECL_ARGS);
1.31      kristaps   84: static void      termp_fo_post(DECL_ARGS);
                     85: static void      termp_in_post(DECL_ARGS);
                     86: static void      termp_it_post(DECL_ARGS);
                     87: static void      termp_lb_post(DECL_ARGS);
                     88: static void      termp_op_post(DECL_ARGS);
                     89: static void      termp_pf_post(DECL_ARGS);
                     90: static void      termp_pq_post(DECL_ARGS);
                     91: static void      termp_qq_post(DECL_ARGS);
                     92: static void      termp_sh_post(DECL_ARGS);
                     93: static void      termp_sq_post(DECL_ARGS);
                     94: static void      termp_ss_post(DECL_ARGS);
                     95:
1.61      kristaps   96: static int       termp_an_pre(DECL_ARGS);
1.31      kristaps   97: static int       termp_ap_pre(DECL_ARGS);
                     98: static int       termp_aq_pre(DECL_ARGS);
                     99: static int       termp_bd_pre(DECL_ARGS);
                    100: static int       termp_bf_pre(DECL_ARGS);
1.115     kristaps  101: static int       termp_bl_pre(DECL_ARGS);
1.69      kristaps  102: static int       termp_bold_pre(DECL_ARGS);
1.31      kristaps  103: static int       termp_bq_pre(DECL_ARGS);
                    104: static int       termp_brq_pre(DECL_ARGS);
                    105: static int       termp_bt_pre(DECL_ARGS);
                    106: static int       termp_cd_pre(DECL_ARGS);
                    107: static int       termp_d1_pre(DECL_ARGS);
                    108: static int       termp_dq_pre(DECL_ARGS);
                    109: static int       termp_ex_pre(DECL_ARGS);
                    110: static int       termp_fa_pre(DECL_ARGS);
                    111: static int       termp_fl_pre(DECL_ARGS);
                    112: static int       termp_fn_pre(DECL_ARGS);
                    113: static int       termp_fo_pre(DECL_ARGS);
                    114: static int       termp_ft_pre(DECL_ARGS);
                    115: static int       termp_in_pre(DECL_ARGS);
                    116: static int       termp_it_pre(DECL_ARGS);
1.102     kristaps  117: static int       termp_li_pre(DECL_ARGS);
1.31      kristaps  118: static int       termp_lk_pre(DECL_ARGS);
                    119: static int       termp_nd_pre(DECL_ARGS);
                    120: static int       termp_nm_pre(DECL_ARGS);
                    121: static int       termp_ns_pre(DECL_ARGS);
                    122: static int       termp_op_pre(DECL_ARGS);
                    123: static int       termp_pf_pre(DECL_ARGS);
                    124: static int       termp_pq_pre(DECL_ARGS);
                    125: static int       termp_qq_pre(DECL_ARGS);
                    126: static int       termp_rs_pre(DECL_ARGS);
                    127: static int       termp_rv_pre(DECL_ARGS);
                    128: static int       termp_sh_pre(DECL_ARGS);
                    129: static int       termp_sm_pre(DECL_ARGS);
1.45      kristaps  130: static int       termp_sp_pre(DECL_ARGS);
1.31      kristaps  131: static int       termp_sq_pre(DECL_ARGS);
                    132: static int       termp_ss_pre(DECL_ARGS);
1.69      kristaps  133: static int       termp_under_pre(DECL_ARGS);
1.31      kristaps  134: static int       termp_ud_pre(DECL_ARGS);
1.110     kristaps  135: static int       termp_vt_pre(DECL_ARGS);
1.31      kristaps  136: static int       termp_xr_pre(DECL_ARGS);
                    137: static int       termp_xx_pre(DECL_ARGS);
                    138:
1.70      kristaps  139: static const struct termact termacts[MDOC_MAX] = {
1.14      kristaps  140:        { termp_ap_pre, NULL }, /* Ap */
1.1       kristaps  141:        { NULL, NULL }, /* Dd */
                    142:        { NULL, NULL }, /* Dt */
                    143:        { NULL, NULL }, /* Os */
                    144:        { termp_sh_pre, termp_sh_post }, /* Sh */
                    145:        { termp_ss_pre, termp_ss_post }, /* Ss */
1.76      kristaps  146:        { termp_sp_pre, NULL }, /* Pp */
1.1       kristaps  147:        { termp_d1_pre, termp_d1_post }, /* D1 */
                    148:        { termp_d1_pre, termp_d1_post }, /* Dl */
                    149:        { termp_bd_pre, termp_bd_post }, /* Bd */
                    150:        { NULL, NULL }, /* Ed */
1.115     kristaps  151:        { termp_bl_pre, termp_bl_post }, /* Bl */
1.1       kristaps  152:        { NULL, NULL }, /* El */
                    153:        { termp_it_pre, termp_it_post }, /* It */
                    154:        { NULL, NULL }, /* Ad */
1.61      kristaps  155:        { termp_an_pre, termp_an_post }, /* An */
1.69      kristaps  156:        { termp_under_pre, NULL }, /* Ar */
1.1       kristaps  157:        { termp_cd_pre, NULL }, /* Cd */
1.69      kristaps  158:        { termp_bold_pre, NULL }, /* Cm */
1.1       kristaps  159:        { NULL, NULL }, /* Dv */
                    160:        { NULL, NULL }, /* Er */
                    161:        { NULL, NULL }, /* Ev */
                    162:        { termp_ex_pre, NULL }, /* Ex */
                    163:        { termp_fa_pre, NULL }, /* Fa */
1.143     kristaps  164:        { termp_fd_pre, NULL }, /* Fd */
1.1       kristaps  165:        { termp_fl_pre, NULL }, /* Fl */
1.143     kristaps  166:        { termp_fn_pre, NULL }, /* Fn */
1.141     kristaps  167:        { termp_ft_pre, NULL }, /* Ft */
1.69      kristaps  168:        { termp_bold_pre, NULL }, /* Ic */
1.1       kristaps  169:        { termp_in_pre, termp_in_post }, /* In */
1.102     kristaps  170:        { termp_li_pre, NULL }, /* Li */
1.1       kristaps  171:        { termp_nd_pre, NULL }, /* Nd */
                    172:        { termp_nm_pre, NULL }, /* Nm */
                    173:        { termp_op_pre, termp_op_post }, /* Op */
                    174:        { NULL, NULL }, /* Ot */
1.69      kristaps  175:        { termp_under_pre, NULL }, /* Pa */
1.1       kristaps  176:        { termp_rv_pre, NULL }, /* Rv */
1.36      kristaps  177:        { NULL, NULL }, /* St */
1.69      kristaps  178:        { termp_under_pre, NULL }, /* Va */
1.143     kristaps  179:        { termp_vt_pre, NULL }, /* Vt */
1.1       kristaps  180:        { termp_xr_pre, NULL }, /* Xr */
                    181:        { NULL, termp____post }, /* %A */
1.84      kristaps  182:        { termp_under_pre, termp____post }, /* %B */
1.1       kristaps  183:        { NULL, termp____post }, /* %D */
1.84      kristaps  184:        { termp_under_pre, termp____post }, /* %I */
1.69      kristaps  185:        { termp_under_pre, termp____post }, /* %J */
1.1       kristaps  186:        { NULL, termp____post }, /* %N */
                    187:        { NULL, termp____post }, /* %O */
                    188:        { NULL, termp____post }, /* %P */
                    189:        { NULL, termp____post }, /* %R */
1.117     kristaps  190:        { termp_under_pre, termp____post }, /* %T */
1.1       kristaps  191:        { NULL, termp____post }, /* %V */
                    192:        { NULL, NULL }, /* Ac */
                    193:        { termp_aq_pre, termp_aq_post }, /* Ao */
                    194:        { termp_aq_pre, termp_aq_post }, /* Aq */
1.35      kristaps  195:        { NULL, NULL }, /* At */
1.1       kristaps  196:        { NULL, NULL }, /* Bc */
                    197:        { termp_bf_pre, NULL }, /* Bf */
                    198:        { termp_bq_pre, termp_bq_post }, /* Bo */
                    199:        { termp_bq_pre, termp_bq_post }, /* Bq */
1.26      kristaps  200:        { termp_xx_pre, NULL }, /* Bsx */
1.1       kristaps  201:        { NULL, termp_bx_post }, /* Bx */
                    202:        { NULL, NULL }, /* Db */
                    203:        { NULL, NULL }, /* Dc */
                    204:        { termp_dq_pre, termp_dq_post }, /* Do */
                    205:        { termp_dq_pre, termp_dq_post }, /* Dq */
1.112     kristaps  206:        { NULL, NULL }, /* Ec */ /* FIXME: no space */
1.1       kristaps  207:        { NULL, NULL }, /* Ef */
1.69      kristaps  208:        { termp_under_pre, NULL }, /* Em */
1.1       kristaps  209:        { NULL, NULL }, /* Eo */
1.26      kristaps  210:        { termp_xx_pre, NULL }, /* Fx */
1.80      kristaps  211:        { termp_bold_pre, NULL }, /* Ms */ /* FIXME: convert to symbol? */
1.1       kristaps  212:        { NULL, NULL }, /* No */
                    213:        { termp_ns_pre, NULL }, /* Ns */
1.26      kristaps  214:        { termp_xx_pre, NULL }, /* Nx */
                    215:        { termp_xx_pre, NULL }, /* Ox */
1.1       kristaps  216:        { NULL, NULL }, /* Pc */
                    217:        { termp_pf_pre, termp_pf_post }, /* Pf */
                    218:        { termp_pq_pre, termp_pq_post }, /* Po */
                    219:        { termp_pq_pre, termp_pq_post }, /* Pq */
                    220:        { NULL, NULL }, /* Qc */
                    221:        { termp_sq_pre, termp_sq_post }, /* Ql */
                    222:        { termp_qq_pre, termp_qq_post }, /* Qo */
                    223:        { termp_qq_pre, termp_qq_post }, /* Qq */
                    224:        { NULL, NULL }, /* Re */
                    225:        { termp_rs_pre, NULL }, /* Rs */
                    226:        { NULL, NULL }, /* Sc */
                    227:        { termp_sq_pre, termp_sq_post }, /* So */
                    228:        { termp_sq_pre, termp_sq_post }, /* Sq */
                    229:        { termp_sm_pre, NULL }, /* Sm */
1.69      kristaps  230:        { termp_under_pre, NULL }, /* Sx */
                    231:        { termp_bold_pre, NULL }, /* Sy */
1.1       kristaps  232:        { NULL, NULL }, /* Tn */
1.26      kristaps  233:        { termp_xx_pre, NULL }, /* Ux */
1.1       kristaps  234:        { NULL, NULL }, /* Xc */
                    235:        { NULL, NULL }, /* Xo */
                    236:        { termp_fo_pre, termp_fo_post }, /* Fo */
                    237:        { NULL, NULL }, /* Fc */
                    238:        { termp_op_pre, termp_op_post }, /* Oo */
                    239:        { NULL, NULL }, /* Oc */
                    240:        { NULL, NULL }, /* Bk */
                    241:        { NULL, NULL }, /* Ek */
                    242:        { termp_bt_pre, NULL }, /* Bt */
                    243:        { NULL, NULL }, /* Hf */
                    244:        { NULL, NULL }, /* Fr */
                    245:        { termp_ud_pre, NULL }, /* Ud */
1.37      kristaps  246:        { NULL, termp_lb_post }, /* Lb */
1.76      kristaps  247:        { termp_sp_pre, NULL }, /* Lp */
1.1       kristaps  248:        { termp_lk_pre, NULL }, /* Lk */
1.69      kristaps  249:        { termp_under_pre, NULL }, /* Mt */
1.1       kristaps  250:        { termp_brq_pre, termp_brq_post }, /* Brq */
                    251:        { termp_brq_pre, termp_brq_post }, /* Bro */
                    252:        { NULL, NULL }, /* Brc */
1.83      kristaps  253:        { NULL, termp____post }, /* %C */
1.81      kristaps  254:        { NULL, NULL }, /* Es */ /* TODO */
                    255:        { NULL, NULL }, /* En */ /* TODO */
1.26      kristaps  256:        { termp_xx_pre, NULL }, /* Dx */
1.83      kristaps  257:        { NULL, termp____post }, /* %Q */
1.76      kristaps  258:        { termp_sp_pre, NULL }, /* br */
1.45      kristaps  259:        { termp_sp_pre, NULL }, /* sp */
1.96      kristaps  260:        { termp_under_pre, termp____post }, /* %U */
1.135     kristaps  261:        { NULL, NULL }, /* Ta */
1.1       kristaps  262: };
                    263:
                    264:
1.70      kristaps  265: void
1.89      kristaps  266: terminal_mdoc(void *arg, const struct mdoc *mdoc)
1.1       kristaps  267: {
1.70      kristaps  268:        const struct mdoc_node  *n;
                    269:        const struct mdoc_meta  *m;
1.89      kristaps  270:        struct termp            *p;
                    271:
                    272:        p = (struct termp *)arg;
1.111     kristaps  273:
                    274:        p->overstep = 0;
1.123     joerg     275:        p->maxrmargin = p->defrmargin;
1.129     schwarze  276:        p->tabwidth = 5;
1.89      kristaps  277:
                    278:        if (NULL == p->symtab)
                    279:                switch (p->enc) {
                    280:                case (TERMENC_ASCII):
                    281:                        p->symtab = chars_init(CHARS_ASCII);
                    282:                        break;
                    283:                default:
                    284:                        abort();
                    285:                        /* NOTREACHED */
                    286:                }
1.70      kristaps  287:
                    288:        n = mdoc_node(mdoc);
                    289:        m = mdoc_meta(mdoc);
1.146     schwarze  290:
                    291:        term_begin(p, print_mdoc_head, print_mdoc_foot, m);
1.70      kristaps  292:
                    293:        if (n->child)
1.102     kristaps  294:                print_mdoc_nodelist(p, NULL, m, n->child);
1.144     kristaps  295:
                    296:        term_end(p);
1.1       kristaps  297: }
                    298:
                    299:
1.3       kristaps  300: static void
1.102     kristaps  301: print_mdoc_nodelist(DECL_ARGS)
1.1       kristaps  302: {
                    303:
1.102     kristaps  304:        print_mdoc_node(p, pair, m, n);
1.86      kristaps  305:        if (n->next)
1.102     kristaps  306:                print_mdoc_nodelist(p, pair, m, n->next);
1.1       kristaps  307: }
                    308:
                    309:
1.70      kristaps  310: /* ARGSUSED */
1.3       kristaps  311: static void
1.102     kristaps  312: print_mdoc_node(DECL_ARGS)
1.1       kristaps  313: {
1.102     kristaps  314:        int              chld;
                    315:        const void      *font;
1.1       kristaps  316:        struct termpair  npair;
1.30      kristaps  317:        size_t           offset, rmargin;
1.1       kristaps  318:
1.70      kristaps  319:        chld = 1;
1.29      kristaps  320:        offset = p->offset;
1.30      kristaps  321:        rmargin = p->rmargin;
1.102     kristaps  322:        font = term_fontq(p);
1.29      kristaps  323:
1.97      kristaps  324:        memset(&npair, 0, sizeof(struct termpair));
1.1       kristaps  325:        npair.ppair = pair;
1.46      kristaps  326:
1.86      kristaps  327:        if (MDOC_TEXT != n->type) {
                    328:                if (termacts[n->tok].pre)
                    329:                        chld = (*termacts[n->tok].pre)(p, &npair, m, n);
1.70      kristaps  330:        } else
1.86      kristaps  331:                term_word(p, n->string);
1.102     kristaps  332:
1.86      kristaps  333:        if (chld && n->child)
1.102     kristaps  334:                print_mdoc_nodelist(p, &npair, m, n->child);
1.1       kristaps  335:
1.102     kristaps  336:        term_fontpopq(p, font);
1.46      kristaps  337:
1.86      kristaps  338:        if (MDOC_TEXT != n->type)
                    339:                if (termacts[n->tok].post)
                    340:                        (*termacts[n->tok].post)(p, &npair, m, n);
1.121     kristaps  341:
                    342:        if (MDOC_EOS & n->flags)
                    343:                p->flags |= TERMP_SENTENCE;
1.29      kristaps  344:
                    345:        p->offset = offset;
1.30      kristaps  346:        p->rmargin = rmargin;
1.1       kristaps  347: }
                    348:
                    349:
1.3       kristaps  350: static void
1.145     kristaps  351: print_mdoc_foot(struct termp *p, const void *arg)
1.1       kristaps  352: {
1.98      kristaps  353:        char            buf[DATESIZ], os[BUFSIZ];
1.144     kristaps  354:        const struct mdoc_meta *m;
                    355:
                    356:        m = (const struct mdoc_meta *)arg;
1.1       kristaps  357:
1.102     kristaps  358:        term_fontrepl(p, TERMFONT_NONE);
1.101     kristaps  359:
1.9       kristaps  360:        /*
                    361:         * Output the footer in new-groff style, that is, three columns
                    362:         * with the middle being the manual date and flanking columns
                    363:         * being the operating system:
                    364:         *
                    365:         * SYSTEM                  DATE                    SYSTEM
                    366:         */
                    367:
1.94      kristaps  368:        time2a(m->date, buf, DATESIZ);
1.98      kristaps  369:        strlcpy(os, m->os, BUFSIZ);
1.1       kristaps  370:
                    371:        term_vspace(p);
                    372:
1.9       kristaps  373:        p->offset = 0;
                    374:        p->rmargin = (p->maxrmargin - strlen(buf) + 1) / 2;
1.1       kristaps  375:        p->flags |= TERMP_NOSPACE | TERMP_NOBREAK;
                    376:
                    377:        term_word(p, os);
                    378:        term_flushln(p);
                    379:
1.9       kristaps  380:        p->offset = p->rmargin;
                    381:        p->rmargin = p->maxrmargin - strlen(os);
1.1       kristaps  382:        p->flags |= TERMP_NOLPAD | TERMP_NOSPACE;
1.9       kristaps  383:
                    384:        term_word(p, buf);
                    385:        term_flushln(p);
                    386:
1.1       kristaps  387:        p->offset = p->rmargin;
                    388:        p->rmargin = p->maxrmargin;
                    389:        p->flags &= ~TERMP_NOBREAK;
1.9       kristaps  390:        p->flags |= TERMP_NOLPAD | TERMP_NOSPACE;
1.1       kristaps  391:
1.9       kristaps  392:        term_word(p, os);
1.1       kristaps  393:        term_flushln(p);
                    394:
1.9       kristaps  395:        p->offset = 0;
                    396:        p->rmargin = p->maxrmargin;
                    397:        p->flags = 0;
1.1       kristaps  398: }
                    399:
                    400:
1.3       kristaps  401: static void
1.144     kristaps  402: print_mdoc_head(struct termp *p, const void *arg)
1.1       kristaps  403: {
1.98      kristaps  404:        char            buf[BUFSIZ], title[BUFSIZ];
1.144     kristaps  405:        const struct mdoc_meta *m;
                    406:
                    407:        m = (const struct mdoc_meta *)arg;
1.1       kristaps  408:
                    409:        p->rmargin = p->maxrmargin;
                    410:        p->offset = 0;
                    411:
                    412:        /*
                    413:         * The header is strange.  It has three components, which are
                    414:         * really two with the first duplicated.  It goes like this:
                    415:         *
                    416:         * IDENTIFIER              TITLE                   IDENTIFIER
                    417:         *
                    418:         * The IDENTIFIER is NAME(SECTION), which is the command-name
                    419:         * (if given, or "unknown" if not) followed by the manual page
                    420:         * section.  These are given in `Dt'.  The TITLE is a free-form
                    421:         * string depending on the manual volume.  If not specified, it
                    422:         * switches on the manual section.
                    423:         */
                    424:
1.86      kristaps  425:        assert(m->vol);
1.98      kristaps  426:        strlcpy(buf, m->vol, BUFSIZ);
1.1       kristaps  427:
1.86      kristaps  428:        if (m->arch) {
1.98      kristaps  429:                strlcat(buf, " (", BUFSIZ);
                    430:                strlcat(buf, m->arch, BUFSIZ);
                    431:                strlcat(buf, ")", BUFSIZ);
1.1       kristaps  432:        }
                    433:
1.124     kristaps  434:        snprintf(title, BUFSIZ, "%s(%s)", m->title, m->msec);
1.1       kristaps  435:
                    436:        p->offset = 0;
1.8       kristaps  437:        p->rmargin = (p->maxrmargin - strlen(buf) + 1) / 2;
1.1       kristaps  438:        p->flags |= TERMP_NOBREAK | TERMP_NOSPACE;
                    439:
                    440:        term_word(p, title);
                    441:        term_flushln(p);
                    442:
                    443:        p->offset = p->rmargin;
                    444:        p->rmargin = p->maxrmargin - strlen(title);
1.9       kristaps  445:        p->flags |= TERMP_NOLPAD | TERMP_NOSPACE;
1.1       kristaps  446:
                    447:        term_word(p, buf);
                    448:        term_flushln(p);
                    449:
                    450:        p->offset = p->rmargin;
                    451:        p->rmargin = p->maxrmargin;
                    452:        p->flags &= ~TERMP_NOBREAK;
                    453:        p->flags |= TERMP_NOLPAD | TERMP_NOSPACE;
                    454:
                    455:        term_word(p, title);
                    456:        term_flushln(p);
                    457:
1.9       kristaps  458:        p->offset = 0;
1.1       kristaps  459:        p->rmargin = p->maxrmargin;
                    460:        p->flags &= ~TERMP_NOSPACE;
                    461: }
                    462:
                    463:
                    464: static size_t
1.96      kristaps  465: a2height(const struct mdoc_node *n)
1.1       kristaps  466: {
1.92      kristaps  467:        struct roffsu    su;
1.91      kristaps  468:
                    469:        assert(MDOC_TEXT == n->type);
                    470:        assert(n->string);
1.92      kristaps  471:        if ( ! a2roffsu(n->string, &su, SCALE_VS))
                    472:                SCALE_VS_INIT(&su, strlen(n->string));
1.91      kristaps  473:
1.92      kristaps  474:        return(term_vspan(&su));
1.91      kristaps  475: }
1.1       kristaps  476:
1.40      kristaps  477:
1.91      kristaps  478: static size_t
1.154   ! kristaps  479: a2width(const char *v)
1.91      kristaps  480: {
1.92      kristaps  481:        struct roffsu    su;
1.1       kristaps  482:
1.154   ! kristaps  483:        assert(v);
        !           484:        if ( ! a2roffsu(v, &su, SCALE_MAX))
        !           485:                SCALE_HS_INIT(&su, strlen(v));
1.1       kristaps  486:
1.108     kristaps  487:        return(term_hspan(&su));
1.1       kristaps  488: }
                    489:
                    490:
                    491: static size_t
1.148     kristaps  492: a2offs(const char *v)
1.1       kristaps  493: {
1.92      kristaps  494:        struct roffsu    su;
1.1       kristaps  495:
1.148     kristaps  496:        if ('\0' == *v)
1.91      kristaps  497:                return(0);
1.148     kristaps  498:        else if (0 == strcmp(v, "left"))
1.19      kristaps  499:                return(0);
1.148     kristaps  500:        else if (0 == strcmp(v, "indent"))
1.16      kristaps  501:                return(INDENT + 1);
1.148     kristaps  502:        else if (0 == strcmp(v, "indent-two"))
1.20      kristaps  503:                return((INDENT + 1) * 2);
1.148     kristaps  504:        else if ( ! a2roffsu(v, &su, SCALE_MAX))
                    505:                SCALE_HS_INIT(&su, strlen(v));
1.10      kristaps  506:
1.92      kristaps  507:        return(term_hspan(&su));
1.1       kristaps  508: }
                    509:
                    510:
1.108     kristaps  511: /*
                    512:  * Return 1 if an argument has a particular argument value or 0 if it
                    513:  * does not.  See arg_getattr().
                    514:  */
1.1       kristaps  515: static int
                    516: arg_hasattr(int arg, const struct mdoc_node *n)
                    517: {
                    518:
                    519:        return(-1 != arg_getattr(arg, n));
                    520: }
                    521:
                    522:
1.108     kristaps  523: /*
                    524:  * Get the index of an argument in a node's argument list or -1 if it
                    525:  * does not exist.  See arg_getattrs().
                    526:  */
1.1       kristaps  527: static int
                    528: arg_getattr(int v, const struct mdoc_node *n)
                    529: {
                    530:        int              val;
                    531:
                    532:        return(arg_getattrs(&v, &val, 1, n) ? val : -1);
                    533: }
                    534:
                    535:
1.108     kristaps  536: /*
                    537:  * Walk through the argument list for a node and fill an array "vals"
                    538:  * with the positions of the argument structures listed in "keys".
                    539:  * Return the number of elements that were written into "vals", which
                    540:  * can be zero.
                    541:  */
1.1       kristaps  542: static int
                    543: arg_getattrs(const int *keys, int *vals,
                    544:                size_t sz, const struct mdoc_node *n)
                    545: {
                    546:        int              i, j, k;
                    547:
                    548:        if (NULL == n->args)
                    549:                return(0);
                    550:
                    551:        for (k = i = 0; i < (int)n->args->argc; i++)
                    552:                for (j = 0; j < (int)sz; j++)
                    553:                        if (n->args->argv[i].arg == keys[j]) {
                    554:                                vals[j] = i;
                    555:                                k++;
                    556:                        }
                    557:        return(k);
                    558: }
                    559:
                    560:
1.108     kristaps  561: /*
                    562:  * Determine how much space to print out before block elements of `It'
                    563:  * (and thus `Bl') and `Bd'.  And then go ahead and print that space,
                    564:  * too.
                    565:  */
1.54      kristaps  566: static void
1.151     kristaps  567: print_bvspace(struct termp *p,
                    568:                const struct mdoc_node *bl,
                    569:                const struct mdoc_node *n)
1.1       kristaps  570: {
1.86      kristaps  571:        const struct mdoc_node  *nn;
1.1       kristaps  572:
                    573:        term_newln(p);
1.150     kristaps  574:
1.151     kristaps  575:        if (MDOC_Bd == bl->tok && bl->data.Bd.comp)
1.150     kristaps  576:                return;
1.151     kristaps  577:        if (MDOC_Bl == bl->tok && bl->data.Bl.comp)
1.54      kristaps  578:                return;
                    579:
1.85      kristaps  580:        /* Do not vspace directly after Ss/Sh. */
1.1       kristaps  581:
1.86      kristaps  582:        for (nn = n; nn; nn = nn->parent) {
                    583:                if (MDOC_BLOCK != nn->type)
1.1       kristaps  584:                        continue;
1.86      kristaps  585:                if (MDOC_Ss == nn->tok)
1.54      kristaps  586:                        return;
1.86      kristaps  587:                if (MDOC_Sh == nn->tok)
1.54      kristaps  588:                        return;
1.86      kristaps  589:                if (NULL == nn->prev)
1.1       kristaps  590:                        continue;
                    591:                break;
                    592:        }
                    593:
1.85      kristaps  594:        /* A `-column' does not assert vspace within the list. */
1.54      kristaps  595:
1.151     kristaps  596:        if (MDOC_Bl == bl->tok && LIST_column == bl->data.Bl.type)
1.86      kristaps  597:                if (n->prev && MDOC_It == n->prev->tok)
1.54      kristaps  598:                        return;
                    599:
1.85      kristaps  600:        /* A `-diag' without body does not vspace. */
                    601:
1.151     kristaps  602:        if (MDOC_Bl == bl->tok && LIST_diag == bl->data.Bl.type)
1.86      kristaps  603:                if (n->prev && MDOC_It == n->prev->tok) {
                    604:                        assert(n->prev->body);
                    605:                        if (NULL == n->prev->body->child)
1.55      kristaps  606:                                return;
                    607:                }
                    608:
1.54      kristaps  609:        term_vspace(p);
1.1       kristaps  610: }
                    611:
                    612:
                    613: /* ARGSUSED */
                    614: static int
                    615: termp_dq_pre(DECL_ARGS)
                    616: {
                    617:
1.86      kristaps  618:        if (MDOC_BODY != n->type)
1.1       kristaps  619:                return(1);
                    620:
                    621:        term_word(p, "\\(lq");
                    622:        p->flags |= TERMP_NOSPACE;
                    623:        return(1);
                    624: }
                    625:
                    626:
                    627: /* ARGSUSED */
                    628: static void
                    629: termp_dq_post(DECL_ARGS)
                    630: {
                    631:
1.86      kristaps  632:        if (MDOC_BODY != n->type)
1.1       kristaps  633:                return;
                    634:
                    635:        p->flags |= TERMP_NOSPACE;
                    636:        term_word(p, "\\(rq");
                    637: }
                    638:
                    639:
                    640: /* ARGSUSED */
                    641: static int
                    642: termp_it_pre(DECL_ARGS)
                    643: {
1.86      kristaps  644:        const struct mdoc_node *bl, *nn;
1.1       kristaps  645:        char                    buf[7];
1.152     kristaps  646:        int                     i, keys[2], vals[2];
1.108     kristaps  647:        size_t                  width, offset, ncols, dcol;
1.126     kristaps  648:        enum mdoc_list          type;
1.1       kristaps  649:
1.86      kristaps  650:        if (MDOC_BLOCK == n->type) {
1.151     kristaps  651:                print_bvspace(p, n->parent->parent, n);
1.54      kristaps  652:                return(1);
                    653:        }
1.1       kristaps  654:
1.86      kristaps  655:        bl = n->parent->parent->parent;
1.1       kristaps  656:
1.108     kristaps  657:        /* Get list width, offset, and list type from argument list. */
1.1       kristaps  658:
                    659:        keys[0] = MDOC_Width;
1.152     kristaps  660:        keys[1] = MDOC_Column;
1.1       kristaps  661:
1.152     kristaps  662:        vals[0] = vals[1] = -1;
1.1       kristaps  663:
1.152     kristaps  664:        arg_getattrs(keys, vals, 2, bl);
1.1       kristaps  665:
1.149     kristaps  666:        type = bl->data.Bl.type;
1.1       kristaps  667:
1.108     kristaps  668:        /*
                    669:         * First calculate width and offset.  This is pretty easy unless
                    670:         * we're a -column list, in which case all prior columns must
                    671:         * be accounted for.
                    672:         */
                    673:
                    674:        width = offset = 0;
                    675:
1.152     kristaps  676:        if (bl->data.Bl.offs)
                    677:                offset = a2offs(bl->data.Bl.offs);
                    678:
1.105     kristaps  679:
1.1       kristaps  680:        switch (type) {
1.126     kristaps  681:        case (LIST_column):
1.134     kristaps  682:                if (MDOC_HEAD == n->type)
1.1       kristaps  683:                        break;
1.105     kristaps  684:                /*
1.108     kristaps  685:                 * Imitate groff's column handling:
                    686:                 * - For each earlier column, add its width.
                    687:                 * - For less than 5 columns, add four more blanks per
                    688:                 *   column.
                    689:                 * - For exactly 5 columns, add three more blank per
                    690:                 *   column.
                    691:                 * - For more than 5 columns, add only one column.
1.105     kristaps  692:                 */
1.152     kristaps  693:                ncols = bl->args->argv[vals[1]].sz;
1.108     kristaps  694:                /* LINTED */
                    695:                dcol = ncols < 5 ? 4 : ncols == 5 ? 3 : 1;
                    696:
1.134     kristaps  697:                /*
                    698:                 * Calculate the offset by applying all prior MDOC_BODY,
                    699:                 * so we stop at the MDOC_HEAD (NULL == nn->prev).
                    700:                 */
                    701:
1.108     kristaps  702:                for (i = 0, nn = n->prev;
1.134     kristaps  703:                                nn->prev && i < (int)ncols;
1.108     kristaps  704:                                nn = nn->prev, i++)
                    705:                        offset += dcol + a2width
1.154   ! kristaps  706:                                (bl->args->argv[vals[1]].value[i]);
1.108     kristaps  707:
1.105     kristaps  708:
                    709:                /*
1.108     kristaps  710:                 * When exceeding the declared number of columns, leave
                    711:                 * the remaining widths at 0.  This will later be
                    712:                 * adjusted to the default width of 10, or, for the last
                    713:                 * column, stretched to the right margin.
1.58      kristaps  714:                 */
1.108     kristaps  715:                if (i >= (int)ncols)
                    716:                        break;
1.58      kristaps  717:
1.105     kristaps  718:                /*
1.108     kristaps  719:                 * Use the declared column widths, extended as explained
                    720:                 * in the preceding paragraph.
1.105     kristaps  721:                 */
1.154   ! kristaps  722:                width = a2width
        !           723:                        (bl->args->argv[vals[1]].value[i]) + dcol;
1.1       kristaps  724:                break;
                    725:        default:
1.154   ! kristaps  726:                if (NULL == bl->data.Bl.width)
1.108     kristaps  727:                        break;
                    728:
                    729:                /*
                    730:                 * Note: buffer the width by 2, which is groff's magic
                    731:                 * number for buffering single arguments.  See the above
                    732:                 * handling for column for how this changes.
                    733:                 */
1.153     kristaps  734:                assert(bl->data.Bl.width);
1.154   ! kristaps  735:                width = a2width(bl->data.Bl.width) + 2;
1.1       kristaps  736:                break;
                    737:        }
                    738:
                    739:        /*
                    740:         * List-type can override the width in the case of fixed-head
                    741:         * values (bullet, dash/hyphen, enum).  Tags need a non-zero
1.67      kristaps  742:         * offset.
1.1       kristaps  743:         */
                    744:
                    745:        switch (type) {
1.126     kristaps  746:        case (LIST_bullet):
1.1       kristaps  747:                /* FALLTHROUGH */
1.126     kristaps  748:        case (LIST_dash):
1.1       kristaps  749:                /* FALLTHROUGH */
1.126     kristaps  750:        case (LIST_hyphen):
1.1       kristaps  751:                if (width < 4)
                    752:                        width = 4;
                    753:                break;
1.126     kristaps  754:        case (LIST_enum):
1.17      kristaps  755:                if (width < 5)
                    756:                        width = 5;
                    757:                break;
1.126     kristaps  758:        case (LIST_hang):
1.39      kristaps  759:                if (0 == width)
                    760:                        width = 8;
                    761:                break;
1.126     kristaps  762:        case (LIST_column):
1.49      kristaps  763:                /* FALLTHROUGH */
1.126     kristaps  764:        case (LIST_tag):
1.1       kristaps  765:                if (0 == width)
                    766:                        width = 10;
                    767:                break;
                    768:        default:
                    769:                break;
                    770:        }
                    771:
                    772:        /*
1.17      kristaps  773:         * Whitespace control.  Inset bodies need an initial space,
                    774:         * while diagonal bodies need two.
1.1       kristaps  775:         */
                    776:
1.51      kristaps  777:        p->flags |= TERMP_NOSPACE;
                    778:
1.1       kristaps  779:        switch (type) {
1.126     kristaps  780:        case (LIST_diag):
1.86      kristaps  781:                if (MDOC_BODY == n->type)
1.62      kristaps  782:                        term_word(p, "\\ \\ ");
1.51      kristaps  783:                break;
1.126     kristaps  784:        case (LIST_inset):
1.86      kristaps  785:                if (MDOC_BODY == n->type)
1.51      kristaps  786:                        term_word(p, "\\ ");
1.1       kristaps  787:                break;
                    788:        default:
                    789:                break;
                    790:        }
                    791:
1.51      kristaps  792:        p->flags |= TERMP_NOSPACE;
                    793:
1.1       kristaps  794:        switch (type) {
1.126     kristaps  795:        case (LIST_diag):
1.86      kristaps  796:                if (MDOC_HEAD == n->type)
1.102     kristaps  797:                        term_fontpush(p, TERMFONT_BOLD);
1.1       kristaps  798:                break;
                    799:        default:
                    800:                break;
                    801:        }
                    802:
                    803:        /*
1.109     kristaps  804:         * Pad and break control.  This is the tricky part.  These flags
                    805:         * are documented in term_flushln() in term.c.  Note that we're
                    806:         * going to unset all of these flags in termp_it_post() when we
                    807:         * exit.
1.1       kristaps  808:         */
                    809:
                    810:        switch (type) {
1.126     kristaps  811:        case (LIST_bullet):
1.1       kristaps  812:                /* FALLTHROUGH */
1.126     kristaps  813:        case (LIST_dash):
1.1       kristaps  814:                /* FALLTHROUGH */
1.126     kristaps  815:        case (LIST_enum):
1.1       kristaps  816:                /* FALLTHROUGH */
1.126     kristaps  817:        case (LIST_hyphen):
1.86      kristaps  818:                if (MDOC_HEAD == n->type)
1.39      kristaps  819:                        p->flags |= TERMP_NOBREAK;
                    820:                else
                    821:                        p->flags |= TERMP_NOLPAD;
                    822:                break;
1.126     kristaps  823:        case (LIST_hang):
1.86      kristaps  824:                if (MDOC_HEAD == n->type)
1.39      kristaps  825:                        p->flags |= TERMP_NOBREAK;
                    826:                else
                    827:                        p->flags |= TERMP_NOLPAD;
                    828:
1.86      kristaps  829:                if (MDOC_HEAD != n->type)
1.59      kristaps  830:                        break;
                    831:
                    832:                /*
                    833:                 * This is ugly.  If `-hang' is specified and the body
                    834:                 * is a `Bl' or `Bd', then we want basically to nullify
                    835:                 * the "overstep" effect in term_flushln() and treat
                    836:                 * this as a `-ohang' list instead.
                    837:                 */
1.86      kristaps  838:                if (n->next->child &&
                    839:                                (MDOC_Bl == n->next->child->tok ||
                    840:                                 MDOC_Bd == n->next->child->tok)) {
1.59      kristaps  841:                        p->flags &= ~TERMP_NOBREAK;
                    842:                        p->flags &= ~TERMP_NOLPAD;
                    843:                } else
1.39      kristaps  844:                        p->flags |= TERMP_HANG;
                    845:                break;
1.126     kristaps  846:        case (LIST_tag):
1.86      kristaps  847:                if (MDOC_HEAD == n->type)
1.51      kristaps  848:                        p->flags |= TERMP_NOBREAK | TERMP_TWOSPACE;
1.1       kristaps  849:                else
                    850:                        p->flags |= TERMP_NOLPAD;
1.38      kristaps  851:
1.86      kristaps  852:                if (MDOC_HEAD != n->type)
1.39      kristaps  853:                        break;
1.86      kristaps  854:                if (NULL == n->next || NULL == n->next->child)
1.39      kristaps  855:                        p->flags |= TERMP_DANGLE;
1.1       kristaps  856:                break;
1.126     kristaps  857:        case (LIST_column):
1.134     kristaps  858:                if (MDOC_HEAD == n->type)
                    859:                        break;
                    860:
                    861:                if (NULL == n->next)
                    862:                        p->flags &= ~TERMP_NOBREAK;
                    863:                else
                    864:                        p->flags |= TERMP_NOBREAK;
                    865:
                    866:                assert(n->prev);
                    867:                if (MDOC_BODY == n->prev->type)
                    868:                        p->flags |= TERMP_NOLPAD;
                    869:
1.1       kristaps  870:                break;
1.126     kristaps  871:        case (LIST_diag):
1.86      kristaps  872:                if (MDOC_HEAD == n->type)
1.1       kristaps  873:                        p->flags |= TERMP_NOBREAK;
                    874:                break;
                    875:        default:
                    876:                break;
                    877:        }
                    878:
                    879:        /*
                    880:         * Margin control.  Set-head-width lists have their right
                    881:         * margins shortened.  The body for these lists has the offset
                    882:         * necessarily lengthened.  Everybody gets the offset.
                    883:         */
                    884:
                    885:        p->offset += offset;
                    886:
                    887:        switch (type) {
1.126     kristaps  888:        case (LIST_hang):
1.59      kristaps  889:                /*
                    890:                 * Same stipulation as above, regarding `-hang'.  We
                    891:                 * don't want to recalculate rmargin and offsets when
                    892:                 * using `Bd' or `Bl' within `-hang' overstep lists.
                    893:                 */
1.86      kristaps  894:                if (MDOC_HEAD == n->type && n->next->child &&
                    895:                                (MDOC_Bl == n->next->child->tok ||
                    896:                                 MDOC_Bd == n->next->child->tok))
1.59      kristaps  897:                        break;
                    898:                /* FALLTHROUGH */
1.126     kristaps  899:        case (LIST_bullet):
1.1       kristaps  900:                /* FALLTHROUGH */
1.126     kristaps  901:        case (LIST_dash):
1.1       kristaps  902:                /* FALLTHROUGH */
1.126     kristaps  903:        case (LIST_enum):
1.1       kristaps  904:                /* FALLTHROUGH */
1.126     kristaps  905:        case (LIST_hyphen):
1.1       kristaps  906:                /* FALLTHROUGH */
1.126     kristaps  907:        case (LIST_tag):
1.49      kristaps  908:                assert(width);
1.86      kristaps  909:                if (MDOC_HEAD == n->type)
1.1       kristaps  910:                        p->rmargin = p->offset + width;
                    911:                else
                    912:                        p->offset += width;
                    913:                break;
1.126     kristaps  914:        case (LIST_column):
1.49      kristaps  915:                assert(width);
1.1       kristaps  916:                p->rmargin = p->offset + width;
1.50      kristaps  917:                /*
                    918:                 * XXX - this behaviour is not documented: the
                    919:                 * right-most column is filled to the right margin.
                    920:                 */
1.134     kristaps  921:                if (MDOC_HEAD == n->type)
                    922:                        break;
                    923:                if (NULL == n->next && p->rmargin < p->maxrmargin)
1.50      kristaps  924:                        p->rmargin = p->maxrmargin;
1.1       kristaps  925:                break;
                    926:        default:
                    927:                break;
                    928:        }
                    929:
                    930:        /*
                    931:         * The dash, hyphen, bullet and enum lists all have a special
1.15      kristaps  932:         * HEAD character (temporarily bold, in some cases).
1.1       kristaps  933:         */
                    934:
1.86      kristaps  935:        if (MDOC_HEAD == n->type)
1.1       kristaps  936:                switch (type) {
1.126     kristaps  937:                case (LIST_bullet):
1.102     kristaps  938:                        term_fontpush(p, TERMFONT_BOLD);
1.1       kristaps  939:                        term_word(p, "\\[bu]");
1.102     kristaps  940:                        term_fontpop(p);
1.1       kristaps  941:                        break;
1.126     kristaps  942:                case (LIST_dash):
1.1       kristaps  943:                        /* FALLTHROUGH */
1.126     kristaps  944:                case (LIST_hyphen):
1.102     kristaps  945:                        term_fontpush(p, TERMFONT_BOLD);
1.27      kristaps  946:                        term_word(p, "\\(hy");
1.102     kristaps  947:                        term_fontpop(p);
1.1       kristaps  948:                        break;
1.126     kristaps  949:                case (LIST_enum):
1.1       kristaps  950:                        (pair->ppair->ppair->count)++;
1.109     kristaps  951:                        snprintf(buf, sizeof(buf), "%d.",
1.1       kristaps  952:                                        pair->ppair->ppair->count);
                    953:                        term_word(p, buf);
                    954:                        break;
                    955:                default:
                    956:                        break;
                    957:                }
                    958:
                    959:        /*
                    960:         * If we're not going to process our children, indicate so here.
                    961:         */
                    962:
                    963:        switch (type) {
1.126     kristaps  964:        case (LIST_bullet):
1.1       kristaps  965:                /* FALLTHROUGH */
1.126     kristaps  966:        case (LIST_item):
1.1       kristaps  967:                /* FALLTHROUGH */
1.126     kristaps  968:        case (LIST_dash):
1.1       kristaps  969:                /* FALLTHROUGH */
1.126     kristaps  970:        case (LIST_hyphen):
1.1       kristaps  971:                /* FALLTHROUGH */
1.126     kristaps  972:        case (LIST_enum):
1.86      kristaps  973:                if (MDOC_HEAD == n->type)
1.1       kristaps  974:                        return(0);
                    975:                break;
1.126     kristaps  976:        case (LIST_column):
1.134     kristaps  977:                if (MDOC_HEAD == n->type)
1.1       kristaps  978:                        return(0);
                    979:                break;
                    980:        default:
                    981:                break;
                    982:        }
                    983:
                    984:        return(1);
                    985: }
                    986:
                    987:
                    988: /* ARGSUSED */
                    989: static void
                    990: termp_it_post(DECL_ARGS)
                    991: {
1.126     kristaps  992:        enum mdoc_list     type;
1.1       kristaps  993:
1.109     kristaps  994:        if (MDOC_BLOCK == n->type)
1.1       kristaps  995:                return;
                    996:
1.149     kristaps  997:        type = n->parent->parent->parent->data.Bl.type;
1.1       kristaps  998:
                    999:        switch (type) {
1.126     kristaps 1000:        case (LIST_item):
1.1       kristaps 1001:                /* FALLTHROUGH */
1.126     kristaps 1002:        case (LIST_diag):
1.53      kristaps 1003:                /* FALLTHROUGH */
1.126     kristaps 1004:        case (LIST_inset):
1.86      kristaps 1005:                if (MDOC_BODY == n->type)
1.130     schwarze 1006:                        term_newln(p);
1.1       kristaps 1007:                break;
1.126     kristaps 1008:        case (LIST_column):
1.134     kristaps 1009:                if (MDOC_BODY == n->type)
1.1       kristaps 1010:                        term_flushln(p);
                   1011:                break;
                   1012:        default:
1.130     schwarze 1013:                term_newln(p);
1.1       kristaps 1014:                break;
                   1015:        }
                   1016:
1.109     kristaps 1017:        /*
                   1018:         * Now that our output is flushed, we can reset our tags.  Since
                   1019:         * only `It' sets these flags, we're free to assume that nobody
                   1020:         * has munged them in the meanwhile.
                   1021:         */
                   1022:
                   1023:        p->flags &= ~TERMP_DANGLE;
                   1024:        p->flags &= ~TERMP_NOBREAK;
                   1025:        p->flags &= ~TERMP_TWOSPACE;
                   1026:        p->flags &= ~TERMP_NOLPAD;
                   1027:        p->flags &= ~TERMP_HANG;
1.1       kristaps 1028: }
                   1029:
                   1030:
                   1031: /* ARGSUSED */
                   1032: static int
                   1033: termp_nm_pre(DECL_ARGS)
                   1034: {
                   1035:
1.125     kristaps 1036:        if (NULL == n->child && NULL == m->name)
1.127     joerg    1037:                return(1);
1.125     kristaps 1038:
1.143     kristaps 1039:        synopsis_pre(p, n);
1.102     kristaps 1040:
                   1041:        term_fontpush(p, TERMFONT_BOLD);
1.86      kristaps 1042:        if (NULL == n->child)
                   1043:                term_word(p, m->name);
1.1       kristaps 1044:        return(1);
                   1045: }
                   1046:
                   1047:
                   1048: /* ARGSUSED */
                   1049: static int
                   1050: termp_fl_pre(DECL_ARGS)
                   1051: {
                   1052:
1.102     kristaps 1053:        term_fontpush(p, TERMFONT_BOLD);
1.1       kristaps 1054:        term_word(p, "\\-");
1.103     kristaps 1055:
                   1056:        if (n->child)
1.114     kristaps 1057:                p->flags |= TERMP_NOSPACE;
                   1058:        else if (n->next && n->next->line == n->line)
1.103     kristaps 1059:                p->flags |= TERMP_NOSPACE;
                   1060:
1.1       kristaps 1061:        return(1);
                   1062: }
                   1063:
                   1064:
                   1065: /* ARGSUSED */
                   1066: static int
1.61      kristaps 1067: termp_an_pre(DECL_ARGS)
                   1068: {
                   1069:
1.86      kristaps 1070:        if (NULL == n->child)
1.61      kristaps 1071:                return(1);
                   1072:
                   1073:        /*
1.85      kristaps 1074:         * If not in the AUTHORS section, `An -split' will cause
                   1075:         * newlines to occur before the author name.  If in the AUTHORS
                   1076:         * section, by default, the first `An' invocation is nosplit,
                   1077:         * then all subsequent ones, regardless of whether interspersed
                   1078:         * with other macros/text, are split.  -split, in this case,
                   1079:         * will override the condition of the implied first -nosplit.
1.61      kristaps 1080:         */
                   1081:
1.86      kristaps 1082:        if (n->sec == SEC_AUTHORS) {
1.61      kristaps 1083:                if ( ! (TERMP_ANPREC & p->flags)) {
                   1084:                        if (TERMP_SPLIT & p->flags)
                   1085:                                term_newln(p);
                   1086:                        return(1);
                   1087:                }
                   1088:                if (TERMP_NOSPLIT & p->flags)
                   1089:                        return(1);
                   1090:                term_newln(p);
                   1091:                return(1);
                   1092:        }
                   1093:
                   1094:        if (TERMP_SPLIT & p->flags)
                   1095:                term_newln(p);
                   1096:
                   1097:        return(1);
                   1098: }
                   1099:
                   1100:
                   1101: /* ARGSUSED */
                   1102: static void
                   1103: termp_an_post(DECL_ARGS)
                   1104: {
                   1105:
1.86      kristaps 1106:        if (n->child) {
                   1107:                if (SEC_AUTHORS == n->sec)
1.61      kristaps 1108:                        p->flags |= TERMP_ANPREC;
                   1109:                return;
                   1110:        }
                   1111:
1.118     kristaps 1112:        if (arg_hasattr(MDOC_Split, n)) {
1.61      kristaps 1113:                p->flags &= ~TERMP_NOSPLIT;
                   1114:                p->flags |= TERMP_SPLIT;
                   1115:        } else {
                   1116:                p->flags &= ~TERMP_SPLIT;
                   1117:                p->flags |= TERMP_NOSPLIT;
                   1118:        }
                   1119:
                   1120: }
                   1121:
                   1122:
                   1123: /* ARGSUSED */
                   1124: static int
1.1       kristaps 1125: termp_ns_pre(DECL_ARGS)
                   1126: {
                   1127:
                   1128:        p->flags |= TERMP_NOSPACE;
                   1129:        return(1);
                   1130: }
                   1131:
                   1132:
                   1133: /* ARGSUSED */
                   1134: static int
                   1135: termp_rs_pre(DECL_ARGS)
                   1136: {
                   1137:
1.86      kristaps 1138:        if (SEC_SEE_ALSO != n->sec)
1.80      kristaps 1139:                return(1);
1.86      kristaps 1140:        if (MDOC_BLOCK == n->type && n->prev)
1.1       kristaps 1141:                term_vspace(p);
                   1142:        return(1);
                   1143: }
                   1144:
                   1145:
                   1146: /* ARGSUSED */
                   1147: static int
                   1148: termp_rv_pre(DECL_ARGS)
                   1149: {
1.68      kristaps 1150:        const struct mdoc_node  *nn;
1.1       kristaps 1151:
                   1152:        term_newln(p);
                   1153:        term_word(p, "The");
                   1154:
1.86      kristaps 1155:        for (nn = n->child; nn; nn = nn->next) {
1.102     kristaps 1156:                term_fontpush(p, TERMFONT_BOLD);
1.68      kristaps 1157:                term_word(p, nn->string);
1.102     kristaps 1158:                term_fontpop(p);
1.68      kristaps 1159:                p->flags |= TERMP_NOSPACE;
                   1160:                if (nn->next && NULL == nn->next->next)
                   1161:                        term_word(p, "(), and");
                   1162:                else if (nn->next)
                   1163:                        term_word(p, "(),");
                   1164:                else
                   1165:                        term_word(p, "()");
                   1166:        }
                   1167:
1.125     kristaps 1168:        if (n->child && n->child->next)
1.68      kristaps 1169:                term_word(p, "functions return");
                   1170:        else
                   1171:                term_word(p, "function returns");
1.1       kristaps 1172:
1.68      kristaps 1173:                term_word(p, "the value 0 if successful; otherwise the value "
                   1174:                        "-1 is returned and the global variable");
1.1       kristaps 1175:
1.102     kristaps 1176:        term_fontpush(p, TERMFONT_UNDER);
1.1       kristaps 1177:        term_word(p, "errno");
1.102     kristaps 1178:        term_fontpop(p);
1.1       kristaps 1179:
                   1180:                term_word(p, "is set to indicate the error.");
1.131     kristaps 1181:        p->flags |= TERMP_SENTENCE;
1.1       kristaps 1182:
1.68      kristaps 1183:        return(0);
1.1       kristaps 1184: }
                   1185:
                   1186:
                   1187: /* ARGSUSED */
                   1188: static int
                   1189: termp_ex_pre(DECL_ARGS)
                   1190: {
1.68      kristaps 1191:        const struct mdoc_node  *nn;
1.1       kristaps 1192:
1.68      kristaps 1193:        term_word(p, "The");
1.1       kristaps 1194:
1.86      kristaps 1195:        for (nn = n->child; nn; nn = nn->next) {
1.102     kristaps 1196:                term_fontpush(p, TERMFONT_BOLD);
1.68      kristaps 1197:                term_word(p, nn->string);
1.102     kristaps 1198:                term_fontpop(p);
1.68      kristaps 1199:                p->flags |= TERMP_NOSPACE;
                   1200:                if (nn->next && NULL == nn->next->next)
                   1201:                        term_word(p, ", and");
                   1202:                else if (nn->next)
                   1203:                        term_word(p, ",");
                   1204:                else
                   1205:                        p->flags &= ~TERMP_NOSPACE;
                   1206:        }
                   1207:
1.125     kristaps 1208:        if (n->child && n->child->next)
1.68      kristaps 1209:                term_word(p, "utilities exit");
                   1210:        else
                   1211:                term_word(p, "utility exits");
                   1212:
                   1213:                term_word(p, "0 on success, and >0 if an error occurs.");
1.131     kristaps 1214:        p->flags |= TERMP_SENTENCE;
1.1       kristaps 1215:
1.68      kristaps 1216:        return(0);
1.1       kristaps 1217: }
                   1218:
                   1219:
                   1220: /* ARGSUSED */
                   1221: static int
                   1222: termp_nd_pre(DECL_ARGS)
                   1223: {
1.25      kristaps 1224:
1.86      kristaps 1225:        if (MDOC_BODY != n->type)
1.25      kristaps 1226:                return(1);
1.30      kristaps 1227:
1.27      kristaps 1228: #if defined(__OpenBSD__) || defined(__linux__)
1.41      kristaps 1229:        term_word(p, "\\(en");
1.23      kristaps 1230: #else
                   1231:        term_word(p, "\\(em");
                   1232: #endif
1.1       kristaps 1233:        return(1);
1.115     kristaps 1234: }
                   1235:
                   1236:
                   1237: /* ARGSUSED */
                   1238: static int
                   1239: termp_bl_pre(DECL_ARGS)
                   1240: {
                   1241:
                   1242:        return(MDOC_HEAD != n->type);
1.1       kristaps 1243: }
                   1244:
                   1245:
                   1246: /* ARGSUSED */
                   1247: static void
                   1248: termp_bl_post(DECL_ARGS)
                   1249: {
                   1250:
1.86      kristaps 1251:        if (MDOC_BLOCK == n->type)
1.1       kristaps 1252:                term_newln(p);
                   1253: }
                   1254:
                   1255:
                   1256: /* ARGSUSED */
                   1257: static void
                   1258: termp_op_post(DECL_ARGS)
                   1259: {
                   1260:
1.86      kristaps 1261:        if (MDOC_BODY != n->type)
1.1       kristaps 1262:                return;
                   1263:        p->flags |= TERMP_NOSPACE;
                   1264:        term_word(p, "\\(rB");
                   1265: }
                   1266:
                   1267:
                   1268: /* ARGSUSED */
                   1269: static int
                   1270: termp_xr_pre(DECL_ARGS)
                   1271: {
1.86      kristaps 1272:        const struct mdoc_node *nn;
1.1       kristaps 1273:
1.113     kristaps 1274:        if (NULL == n->child)
                   1275:                return(0);
                   1276:
                   1277:        assert(MDOC_TEXT == n->child->type);
1.86      kristaps 1278:        nn = n->child;
1.11      kristaps 1279:
1.86      kristaps 1280:        term_word(p, nn->string);
                   1281:        if (NULL == (nn = nn->next))
1.1       kristaps 1282:                return(0);
                   1283:        p->flags |= TERMP_NOSPACE;
                   1284:        term_word(p, "(");
                   1285:        p->flags |= TERMP_NOSPACE;
1.86      kristaps 1286:        term_word(p, nn->string);
1.1       kristaps 1287:        p->flags |= TERMP_NOSPACE;
                   1288:        term_word(p, ")");
1.86      kristaps 1289:
1.1       kristaps 1290:        return(0);
                   1291: }
                   1292:
                   1293:
1.143     kristaps 1294: /*
                   1295:  * This decides how to assert whitespace before any of the SYNOPSIS set
                   1296:  * of macros (which, as in the case of Ft/Fo and Ft/Fn, may contain
                   1297:  * macro combos).
                   1298:  */
                   1299: static void
                   1300: synopsis_pre(struct termp *p, const struct mdoc_node *n)
                   1301: {
                   1302:        /*
                   1303:         * Obviously, if we're not in a SYNOPSIS or no prior macros
                   1304:         * exist, do nothing.
                   1305:         */
                   1306:        if (NULL == n->prev || SEC_SYNOPSIS != n->sec)
                   1307:                return;
                   1308:
                   1309:        /*
                   1310:         * If we're the second in a pair of like elements, emit our
                   1311:         * newline and return.  UNLESS we're `Fo', `Fn', `Fn', in which
                   1312:         * case we soldier on.
                   1313:         */
                   1314:        if (n->prev->tok == n->tok &&
                   1315:                        MDOC_Ft != n->tok &&
                   1316:                        MDOC_Fo != n->tok &&
                   1317:                        MDOC_Fn != n->tok) {
                   1318:                term_newln(p);
                   1319:                return;
                   1320:        }
                   1321:
                   1322:        /*
                   1323:         * If we're one of the SYNOPSIS set and non-like pair-wise after
                   1324:         * another (or Fn/Fo, which we've let slip through) then assert
                   1325:         * vertical space, else only newline and move on.
                   1326:         */
                   1327:        switch (n->prev->tok) {
                   1328:        case (MDOC_Fd):
                   1329:                /* FALLTHROUGH */
                   1330:        case (MDOC_Fn):
                   1331:                /* FALLTHROUGH */
                   1332:        case (MDOC_Fo):
                   1333:                /* FALLTHROUGH */
                   1334:        case (MDOC_In):
                   1335:                /* FALLTHROUGH */
                   1336:        case (MDOC_Vt):
                   1337:                term_vspace(p);
                   1338:                break;
                   1339:        case (MDOC_Ft):
                   1340:                if (MDOC_Fn != n->tok && MDOC_Fo != n->tok) {
                   1341:                        term_vspace(p);
                   1342:                        break;
                   1343:                }
                   1344:                /* FALLTHROUGH */
                   1345:        default:
                   1346:                term_newln(p);
                   1347:                break;
                   1348:        }
                   1349: }
                   1350:
                   1351:
1.110     kristaps 1352: static int
                   1353: termp_vt_pre(DECL_ARGS)
                   1354: {
                   1355:
1.143     kristaps 1356:        if (MDOC_ELEM == n->type) {
                   1357:                synopsis_pre(p, n);
1.110     kristaps 1358:                return(termp_under_pre(p, pair, m, n));
1.143     kristaps 1359:        } else if (MDOC_BLOCK == n->type) {
                   1360:                synopsis_pre(p, n);
                   1361:                return(1);
                   1362:        } else if (MDOC_HEAD == n->type)
1.110     kristaps 1363:                return(0);
                   1364:
                   1365:        return(termp_under_pre(p, pair, m, n));
                   1366: }
                   1367:
                   1368:
1.1       kristaps 1369: /* ARGSUSED */
                   1370: static int
1.69      kristaps 1371: termp_bold_pre(DECL_ARGS)
1.1       kristaps 1372: {
                   1373:
1.102     kristaps 1374:        term_fontpush(p, TERMFONT_BOLD);
1.1       kristaps 1375:        return(1);
                   1376: }
                   1377:
                   1378:
                   1379: /* ARGSUSED */
1.143     kristaps 1380: static int
                   1381: termp_fd_pre(DECL_ARGS)
1.1       kristaps 1382: {
                   1383:
1.143     kristaps 1384:        synopsis_pre(p, n);
                   1385:        return(termp_bold_pre(p, pair, m, n));
1.1       kristaps 1386: }
                   1387:
                   1388:
                   1389: /* ARGSUSED */
                   1390: static int
                   1391: termp_sh_pre(DECL_ARGS)
                   1392: {
1.85      kristaps 1393:
                   1394:        /* No vspace between consecutive `Sh' calls. */
                   1395:
1.86      kristaps 1396:        switch (n->type) {
1.65      kristaps 1397:        case (MDOC_BLOCK):
1.86      kristaps 1398:                if (n->prev && MDOC_Sh == n->prev->tok)
                   1399:                        if (NULL == n->prev->body->child)
1.65      kristaps 1400:                                break;
                   1401:                term_vspace(p);
                   1402:                break;
1.1       kristaps 1403:        case (MDOC_HEAD):
1.102     kristaps 1404:                term_fontpush(p, TERMFONT_BOLD);
1.1       kristaps 1405:                break;
                   1406:        case (MDOC_BODY):
                   1407:                p->offset = INDENT;
                   1408:                break;
                   1409:        default:
                   1410:                break;
                   1411:        }
                   1412:        return(1);
                   1413: }
                   1414:
                   1415:
                   1416: /* ARGSUSED */
                   1417: static void
                   1418: termp_sh_post(DECL_ARGS)
                   1419: {
                   1420:
1.86      kristaps 1421:        switch (n->type) {
1.1       kristaps 1422:        case (MDOC_HEAD):
                   1423:                term_newln(p);
                   1424:                break;
                   1425:        case (MDOC_BODY):
                   1426:                term_newln(p);
                   1427:                p->offset = 0;
                   1428:                break;
                   1429:        default:
                   1430:                break;
                   1431:        }
                   1432: }
                   1433:
                   1434:
                   1435: /* ARGSUSED */
                   1436: static int
                   1437: termp_op_pre(DECL_ARGS)
                   1438: {
                   1439:
1.86      kristaps 1440:        switch (n->type) {
1.1       kristaps 1441:        case (MDOC_BODY):
                   1442:                term_word(p, "\\(lB");
                   1443:                p->flags |= TERMP_NOSPACE;
                   1444:                break;
                   1445:        default:
                   1446:                break;
                   1447:        }
                   1448:        return(1);
                   1449: }
                   1450:
                   1451:
                   1452: /* ARGSUSED */
                   1453: static int
                   1454: termp_bt_pre(DECL_ARGS)
                   1455: {
                   1456:
                   1457:        term_word(p, "is currently in beta test.");
1.131     kristaps 1458:        p->flags |= TERMP_SENTENCE;
1.81      kristaps 1459:        return(0);
1.1       kristaps 1460: }
                   1461:
                   1462:
                   1463: /* ARGSUSED */
                   1464: static void
                   1465: termp_lb_post(DECL_ARGS)
                   1466: {
                   1467:
1.122     kristaps 1468:        if (SEC_LIBRARY == n->sec && MDOC_LINE & n->flags)
1.81      kristaps 1469:                term_newln(p);
1.1       kristaps 1470: }
                   1471:
                   1472:
                   1473: /* ARGSUSED */
                   1474: static int
                   1475: termp_ud_pre(DECL_ARGS)
                   1476: {
                   1477:
                   1478:        term_word(p, "currently under development.");
1.131     kristaps 1479:        p->flags |= TERMP_SENTENCE;
1.86      kristaps 1480:        return(0);
1.1       kristaps 1481: }
                   1482:
                   1483:
                   1484: /* ARGSUSED */
                   1485: static int
                   1486: termp_d1_pre(DECL_ARGS)
                   1487: {
                   1488:
1.86      kristaps 1489:        if (MDOC_BLOCK != n->type)
1.1       kristaps 1490:                return(1);
                   1491:        term_newln(p);
1.29      kristaps 1492:        p->offset += (INDENT + 1);
1.1       kristaps 1493:        return(1);
                   1494: }
                   1495:
                   1496:
                   1497: /* ARGSUSED */
                   1498: static void
                   1499: termp_d1_post(DECL_ARGS)
                   1500: {
                   1501:
1.86      kristaps 1502:        if (MDOC_BLOCK != n->type)
1.1       kristaps 1503:                return;
                   1504:        term_newln(p);
                   1505: }
                   1506:
                   1507:
                   1508: /* ARGSUSED */
                   1509: static int
                   1510: termp_aq_pre(DECL_ARGS)
                   1511: {
                   1512:
1.86      kristaps 1513:        if (MDOC_BODY != n->type)
1.1       kristaps 1514:                return(1);
                   1515:        term_word(p, "\\(la");
                   1516:        p->flags |= TERMP_NOSPACE;
                   1517:        return(1);
                   1518: }
                   1519:
                   1520:
                   1521: /* ARGSUSED */
                   1522: static void
                   1523: termp_aq_post(DECL_ARGS)
                   1524: {
                   1525:
1.86      kristaps 1526:        if (MDOC_BODY != n->type)
1.1       kristaps 1527:                return;
                   1528:        p->flags |= TERMP_NOSPACE;
                   1529:        term_word(p, "\\(ra");
                   1530: }
                   1531:
                   1532:
                   1533: /* ARGSUSED */
                   1534: static int
                   1535: termp_ft_pre(DECL_ARGS)
                   1536: {
                   1537:
1.141     kristaps 1538:        /* NB: MDOC_LINE does not effect this! */
1.143     kristaps 1539:        synopsis_pre(p, n);
1.102     kristaps 1540:        term_fontpush(p, TERMFONT_UNDER);
1.1       kristaps 1541:        return(1);
                   1542: }
                   1543:
                   1544:
                   1545: /* ARGSUSED */
                   1546: static int
                   1547: termp_fn_pre(DECL_ARGS)
                   1548: {
1.86      kristaps 1549:        const struct mdoc_node  *nn;
1.1       kristaps 1550:
1.143     kristaps 1551:        synopsis_pre(p, n);
1.139     kristaps 1552:
1.102     kristaps 1553:        term_fontpush(p, TERMFONT_BOLD);
1.86      kristaps 1554:        term_word(p, n->child->string);
1.102     kristaps 1555:        term_fontpop(p);
1.1       kristaps 1556:
                   1557:        p->flags |= TERMP_NOSPACE;
                   1558:        term_word(p, "(");
                   1559:
1.86      kristaps 1560:        for (nn = n->child->next; nn; nn = nn->next) {
1.102     kristaps 1561:                term_fontpush(p, TERMFONT_UNDER);
1.86      kristaps 1562:                term_word(p, nn->string);
1.102     kristaps 1563:                term_fontpop(p);
                   1564:
1.86      kristaps 1565:                if (nn->next)
1.1       kristaps 1566:                        term_word(p, ",");
                   1567:        }
                   1568:
                   1569:        term_word(p, ")");
                   1570:
1.86      kristaps 1571:        if (SEC_SYNOPSIS == n->sec)
1.1       kristaps 1572:                term_word(p, ";");
                   1573:
                   1574:        return(0);
                   1575: }
                   1576:
                   1577:
                   1578: /* ARGSUSED */
                   1579: static int
                   1580: termp_fa_pre(DECL_ARGS)
                   1581: {
1.86      kristaps 1582:        const struct mdoc_node  *nn;
1.1       kristaps 1583:
1.86      kristaps 1584:        if (n->parent->tok != MDOC_Fo) {
1.102     kristaps 1585:                term_fontpush(p, TERMFONT_UNDER);
1.1       kristaps 1586:                return(1);
                   1587:        }
                   1588:
1.86      kristaps 1589:        for (nn = n->child; nn; nn = nn->next) {
1.102     kristaps 1590:                term_fontpush(p, TERMFONT_UNDER);
1.86      kristaps 1591:                term_word(p, nn->string);
1.102     kristaps 1592:                term_fontpop(p);
                   1593:
1.86      kristaps 1594:                if (nn->next)
1.1       kristaps 1595:                        term_word(p, ",");
                   1596:        }
                   1597:
1.86      kristaps 1598:        if (n->child && n->next && n->next->tok == MDOC_Fa)
1.1       kristaps 1599:                term_word(p, ",");
                   1600:
                   1601:        return(0);
                   1602: }
                   1603:
                   1604:
                   1605: /* ARGSUSED */
                   1606: static int
                   1607: termp_bd_pre(DECL_ARGS)
                   1608: {
1.129     schwarze 1609:        size_t                   tabwidth;
1.119     kristaps 1610:        size_t                   rm, rmax;
1.85      kristaps 1611:        const struct mdoc_node  *nn;
1.1       kristaps 1612:
1.86      kristaps 1613:        if (MDOC_BLOCK == n->type) {
1.151     kristaps 1614:                print_bvspace(p, n, n);
1.54      kristaps 1615:                return(1);
1.116     kristaps 1616:        } else if (MDOC_HEAD == n->type)
                   1617:                return(0);
1.1       kristaps 1618:
1.148     kristaps 1619:        if (n->data.Bd.offs)
                   1620:                p->offset += a2offs(n->data.Bd.offs);
1.85      kristaps 1621:
                   1622:        /*
                   1623:         * If -ragged or -filled are specified, the block does nothing
                   1624:         * but change the indentation.  If -unfilled or -literal are
                   1625:         * specified, text is printed exactly as entered in the display:
                   1626:         * for macro lines, a newline is appended to the line.  Blank
                   1627:         * lines are allowed.
                   1628:         */
1.60      kristaps 1629:
1.148     kristaps 1630:        if (DISP_literal != n->data.Bd.type &&
                   1631:                        DISP_unfilled != n->data.Bd.type)
1.1       kristaps 1632:                return(1);
                   1633:
1.129     schwarze 1634:        tabwidth = p->tabwidth;
                   1635:        p->tabwidth = 8;
1.119     kristaps 1636:        rm = p->rmargin;
                   1637:        rmax = p->maxrmargin;
1.120     kristaps 1638:        p->rmargin = p->maxrmargin = TERM_MAXMARGIN;
1.118     kristaps 1639:
1.86      kristaps 1640:        for (nn = n->child; nn; nn = nn->next) {
1.87      kristaps 1641:                p->flags |= TERMP_NOSPACE;
1.102     kristaps 1642:                print_mdoc_node(p, pair, m, nn);
1.130     schwarze 1643:                if (NULL == nn->prev ||
                   1644:                    nn->prev->line < nn->line ||
                   1645:                    NULL == nn->next)
1.87      kristaps 1646:                        term_flushln(p);
1.1       kristaps 1647:        }
1.147     kristaps 1648:
1.129     schwarze 1649:        p->tabwidth = tabwidth;
1.119     kristaps 1650:        p->rmargin = rm;
                   1651:        p->maxrmargin = rmax;
1.1       kristaps 1652:        return(0);
                   1653: }
                   1654:
                   1655:
                   1656: /* ARGSUSED */
                   1657: static void
                   1658: termp_bd_post(DECL_ARGS)
                   1659: {
1.119     kristaps 1660:        size_t           rm, rmax;
1.1       kristaps 1661:
1.86      kristaps 1662:        if (MDOC_BODY != n->type)
1.1       kristaps 1663:                return;
1.118     kristaps 1664:
1.119     kristaps 1665:        rm = p->rmargin;
                   1666:        rmax = p->maxrmargin;
1.118     kristaps 1667:
1.148     kristaps 1668:        if (DISP_literal == n->data.Bd.type ||
                   1669:                        DISP_unfilled == n->data.Bd.type)
1.120     kristaps 1670:                p->rmargin = p->maxrmargin = TERM_MAXMARGIN;
1.118     kristaps 1671:
1.60      kristaps 1672:        p->flags |= TERMP_NOSPACE;
1.130     schwarze 1673:        term_newln(p);
1.118     kristaps 1674:
1.119     kristaps 1675:        p->rmargin = rm;
                   1676:        p->maxrmargin = rmax;
1.1       kristaps 1677: }
                   1678:
                   1679:
                   1680: /* ARGSUSED */
                   1681: static int
                   1682: termp_qq_pre(DECL_ARGS)
                   1683: {
                   1684:
1.86      kristaps 1685:        if (MDOC_BODY != n->type)
1.1       kristaps 1686:                return(1);
                   1687:        term_word(p, "\"");
                   1688:        p->flags |= TERMP_NOSPACE;
                   1689:        return(1);
                   1690: }
                   1691:
                   1692:
                   1693: /* ARGSUSED */
                   1694: static void
                   1695: termp_qq_post(DECL_ARGS)
                   1696: {
                   1697:
1.86      kristaps 1698:        if (MDOC_BODY != n->type)
1.1       kristaps 1699:                return;
                   1700:        p->flags |= TERMP_NOSPACE;
                   1701:        term_word(p, "\"");
                   1702: }
                   1703:
                   1704:
                   1705: /* ARGSUSED */
                   1706: static void
                   1707: termp_bx_post(DECL_ARGS)
                   1708: {
                   1709:
1.86      kristaps 1710:        if (n->child)
1.1       kristaps 1711:                p->flags |= TERMP_NOSPACE;
                   1712:        term_word(p, "BSD");
                   1713: }
                   1714:
                   1715:
                   1716: /* ARGSUSED */
                   1717: static int
1.26      kristaps 1718: termp_xx_pre(DECL_ARGS)
1.1       kristaps 1719: {
1.26      kristaps 1720:        const char      *pp;
1.1       kristaps 1721:
1.26      kristaps 1722:        pp = NULL;
1.86      kristaps 1723:        switch (n->tok) {
1.26      kristaps 1724:        case (MDOC_Bsx):
                   1725:                pp = "BSDI BSD/OS";
                   1726:                break;
                   1727:        case (MDOC_Dx):
1.100     kristaps 1728:                pp = "DragonFly";
1.26      kristaps 1729:                break;
                   1730:        case (MDOC_Fx):
                   1731:                pp = "FreeBSD";
                   1732:                break;
                   1733:        case (MDOC_Nx):
                   1734:                pp = "NetBSD";
                   1735:                break;
                   1736:        case (MDOC_Ox):
                   1737:                pp = "OpenBSD";
                   1738:                break;
                   1739:        case (MDOC_Ux):
                   1740:                pp = "UNIX";
                   1741:                break;
                   1742:        default:
                   1743:                break;
                   1744:        }
1.1       kristaps 1745:
1.26      kristaps 1746:        assert(pp);
                   1747:        term_word(p, pp);
1.1       kristaps 1748:        return(1);
                   1749: }
                   1750:
                   1751:
                   1752: /* ARGSUSED */
                   1753: static int
                   1754: termp_sq_pre(DECL_ARGS)
                   1755: {
                   1756:
1.86      kristaps 1757:        if (MDOC_BODY != n->type)
1.1       kristaps 1758:                return(1);
                   1759:        term_word(p, "\\(oq");
                   1760:        p->flags |= TERMP_NOSPACE;
                   1761:        return(1);
                   1762: }
                   1763:
                   1764:
                   1765: /* ARGSUSED */
                   1766: static void
                   1767: termp_sq_post(DECL_ARGS)
                   1768: {
                   1769:
1.86      kristaps 1770:        if (MDOC_BODY != n->type)
1.1       kristaps 1771:                return;
                   1772:        p->flags |= TERMP_NOSPACE;
                   1773:        term_word(p, "\\(aq");
                   1774: }
                   1775:
                   1776:
                   1777: /* ARGSUSED */
                   1778: static int
                   1779: termp_pf_pre(DECL_ARGS)
                   1780: {
                   1781:
                   1782:        p->flags |= TERMP_IGNDELIM;
                   1783:        return(1);
                   1784: }
                   1785:
                   1786:
                   1787: /* ARGSUSED */
                   1788: static void
                   1789: termp_pf_post(DECL_ARGS)
                   1790: {
                   1791:
                   1792:        p->flags &= ~TERMP_IGNDELIM;
                   1793:        p->flags |= TERMP_NOSPACE;
                   1794: }
                   1795:
                   1796:
                   1797: /* ARGSUSED */
                   1798: static int
                   1799: termp_ss_pre(DECL_ARGS)
                   1800: {
                   1801:
1.86      kristaps 1802:        switch (n->type) {
1.1       kristaps 1803:        case (MDOC_BLOCK):
                   1804:                term_newln(p);
1.86      kristaps 1805:                if (n->prev)
1.1       kristaps 1806:                        term_vspace(p);
                   1807:                break;
                   1808:        case (MDOC_HEAD):
1.102     kristaps 1809:                term_fontpush(p, TERMFONT_BOLD);
1.5       kristaps 1810:                p->offset = HALFINDENT;
1.1       kristaps 1811:                break;
                   1812:        default:
                   1813:                break;
                   1814:        }
                   1815:
                   1816:        return(1);
                   1817: }
                   1818:
                   1819:
                   1820: /* ARGSUSED */
                   1821: static void
                   1822: termp_ss_post(DECL_ARGS)
                   1823: {
                   1824:
1.86      kristaps 1825:        if (MDOC_HEAD == n->type)
1.1       kristaps 1826:                term_newln(p);
                   1827: }
                   1828:
                   1829:
                   1830: /* ARGSUSED */
                   1831: static int
                   1832: termp_cd_pre(DECL_ARGS)
                   1833: {
                   1834:
1.143     kristaps 1835:        synopsis_pre(p, n);
1.102     kristaps 1836:        term_fontpush(p, TERMFONT_BOLD);
1.1       kristaps 1837:        return(1);
                   1838: }
                   1839:
                   1840:
                   1841: /* ARGSUSED */
                   1842: static int
                   1843: termp_in_pre(DECL_ARGS)
                   1844: {
1.142     schwarze 1845:
1.143     kristaps 1846:        synopsis_pre(p, n);
1.1       kristaps 1847:
1.138     kristaps 1848:        if (SEC_SYNOPSIS == n->sec && MDOC_LINE & n->flags) {
                   1849:                term_fontpush(p, TERMFONT_BOLD);
1.22      kristaps 1850:                term_word(p, "#include");
1.138     kristaps 1851:                term_word(p, "<");
                   1852:        } else {
                   1853:                term_word(p, "<");
                   1854:                term_fontpush(p, TERMFONT_UNDER);
                   1855:        }
1.22      kristaps 1856:
1.1       kristaps 1857:        p->flags |= TERMP_NOSPACE;
                   1858:        return(1);
                   1859: }
                   1860:
                   1861:
                   1862: /* ARGSUSED */
                   1863: static void
                   1864: termp_in_post(DECL_ARGS)
                   1865: {
                   1866:
1.143     kristaps 1867:        if (SEC_SYNOPSIS == n->sec)
1.138     kristaps 1868:                term_fontpush(p, TERMFONT_BOLD);
                   1869:
1.79      kristaps 1870:        p->flags |= TERMP_NOSPACE;
1.1       kristaps 1871:        term_word(p, ">");
                   1872:
1.143     kristaps 1873:        if (SEC_SYNOPSIS == n->sec)
1.138     kristaps 1874:                term_fontpop(p);
1.1       kristaps 1875: }
                   1876:
                   1877:
                   1878: /* ARGSUSED */
                   1879: static int
1.45      kristaps 1880: termp_sp_pre(DECL_ARGS)
                   1881: {
1.91      kristaps 1882:        size_t           i, len;
1.45      kristaps 1883:
1.86      kristaps 1884:        switch (n->tok) {
1.76      kristaps 1885:        case (MDOC_sp):
1.96      kristaps 1886:                len = n->child ? a2height(n->child) : 1;
1.76      kristaps 1887:                break;
                   1888:        case (MDOC_br):
                   1889:                len = 0;
                   1890:                break;
                   1891:        default:
                   1892:                len = 1;
                   1893:                break;
1.45      kristaps 1894:        }
                   1895:
                   1896:        if (0 == len)
                   1897:                term_newln(p);
                   1898:        for (i = 0; i < len; i++)
                   1899:                term_vspace(p);
                   1900:
                   1901:        return(0);
                   1902: }
                   1903:
                   1904:
                   1905: /* ARGSUSED */
                   1906: static int
1.1       kristaps 1907: termp_brq_pre(DECL_ARGS)
                   1908: {
                   1909:
1.86      kristaps 1910:        if (MDOC_BODY != n->type)
1.1       kristaps 1911:                return(1);
                   1912:        term_word(p, "\\(lC");
                   1913:        p->flags |= TERMP_NOSPACE;
                   1914:        return(1);
                   1915: }
                   1916:
                   1917:
                   1918: /* ARGSUSED */
                   1919: static void
                   1920: termp_brq_post(DECL_ARGS)
                   1921: {
                   1922:
1.86      kristaps 1923:        if (MDOC_BODY != n->type)
1.1       kristaps 1924:                return;
                   1925:        p->flags |= TERMP_NOSPACE;
                   1926:        term_word(p, "\\(rC");
                   1927: }
                   1928:
                   1929:
                   1930: /* ARGSUSED */
                   1931: static int
                   1932: termp_bq_pre(DECL_ARGS)
                   1933: {
                   1934:
1.86      kristaps 1935:        if (MDOC_BODY != n->type)
1.1       kristaps 1936:                return(1);
                   1937:        term_word(p, "\\(lB");
                   1938:        p->flags |= TERMP_NOSPACE;
                   1939:        return(1);
                   1940: }
                   1941:
                   1942:
                   1943: /* ARGSUSED */
                   1944: static void
                   1945: termp_bq_post(DECL_ARGS)
                   1946: {
                   1947:
1.86      kristaps 1948:        if (MDOC_BODY != n->type)
1.1       kristaps 1949:                return;
                   1950:        p->flags |= TERMP_NOSPACE;
                   1951:        term_word(p, "\\(rB");
                   1952: }
                   1953:
                   1954:
                   1955: /* ARGSUSED */
                   1956: static int
                   1957: termp_pq_pre(DECL_ARGS)
                   1958: {
                   1959:
1.86      kristaps 1960:        if (MDOC_BODY != n->type)
1.1       kristaps 1961:                return(1);
                   1962:        term_word(p, "\\&(");
                   1963:        p->flags |= TERMP_NOSPACE;
                   1964:        return(1);
                   1965: }
                   1966:
                   1967:
                   1968: /* ARGSUSED */
                   1969: static void
                   1970: termp_pq_post(DECL_ARGS)
                   1971: {
                   1972:
1.86      kristaps 1973:        if (MDOC_BODY != n->type)
1.1       kristaps 1974:                return;
                   1975:        term_word(p, ")");
                   1976: }
                   1977:
                   1978:
                   1979: /* ARGSUSED */
                   1980: static int
                   1981: termp_fo_pre(DECL_ARGS)
                   1982: {
                   1983:
1.141     kristaps 1984:        if (MDOC_BLOCK == n->type) {
1.143     kristaps 1985:                synopsis_pre(p, n);
1.141     kristaps 1986:                return(1);
                   1987:        } else if (MDOC_BODY == n->type) {
1.33      kristaps 1988:                p->flags |= TERMP_NOSPACE;
1.1       kristaps 1989:                term_word(p, "(");
                   1990:                p->flags |= TERMP_NOSPACE;
                   1991:                return(1);
1.141     kristaps 1992:        }
                   1993:
                   1994:        /* XXX: we drop non-initial arguments as per groff. */
1.1       kristaps 1995:
1.141     kristaps 1996:        assert(n->child);
                   1997:        assert(n->child->string);
1.102     kristaps 1998:        term_fontpush(p, TERMFONT_BOLD);
1.141     kristaps 1999:        term_word(p, n->child->string);
1.1       kristaps 2000:        return(0);
                   2001: }
                   2002:
                   2003:
                   2004: /* ARGSUSED */
                   2005: static void
                   2006: termp_fo_post(DECL_ARGS)
                   2007: {
                   2008:
1.143     kristaps 2009:        if (MDOC_BODY != n->type)
                   2010:                return;
                   2011:
                   2012:        p->flags |= TERMP_NOSPACE;
                   2013:        term_word(p, ")");
                   2014:
                   2015:        if (SEC_SYNOPSIS == n->sec) {
1.141     kristaps 2016:                p->flags |= TERMP_NOSPACE;
1.143     kristaps 2017:                term_word(p, ";");
1.141     kristaps 2018:        }
1.1       kristaps 2019: }
                   2020:
                   2021:
                   2022: /* ARGSUSED */
                   2023: static int
                   2024: termp_bf_pre(DECL_ARGS)
                   2025: {
1.86      kristaps 2026:        const struct mdoc_node  *nn;
1.1       kristaps 2027:
1.86      kristaps 2028:        if (MDOC_HEAD == n->type)
1.1       kristaps 2029:                return(0);
1.86      kristaps 2030:        else if (MDOC_BLOCK != n->type)
1.1       kristaps 2031:                return(1);
                   2032:
1.86      kristaps 2033:        if (NULL == (nn = n->head->child)) {
                   2034:                if (arg_hasattr(MDOC_Emphasis, n))
1.102     kristaps 2035:                        term_fontpush(p, TERMFONT_UNDER);
1.86      kristaps 2036:                else if (arg_hasattr(MDOC_Symbolic, n))
1.102     kristaps 2037:                        term_fontpush(p, TERMFONT_BOLD);
                   2038:                else
                   2039:                        term_fontpush(p, TERMFONT_NONE);
1.1       kristaps 2040:
                   2041:                return(1);
                   2042:        }
                   2043:
1.86      kristaps 2044:        assert(MDOC_TEXT == nn->type);
                   2045:        if (0 == strcmp("Em", nn->string))
1.102     kristaps 2046:                term_fontpush(p, TERMFONT_UNDER);
1.86      kristaps 2047:        else if (0 == strcmp("Sy", nn->string))
1.102     kristaps 2048:                term_fontpush(p, TERMFONT_BOLD);
                   2049:        else
                   2050:                term_fontpush(p, TERMFONT_NONE);
1.1       kristaps 2051:
                   2052:        return(1);
                   2053: }
                   2054:
                   2055:
                   2056: /* ARGSUSED */
                   2057: static int
                   2058: termp_sm_pre(DECL_ARGS)
                   2059: {
                   2060:
1.86      kristaps 2061:        assert(n->child && MDOC_TEXT == n->child->type);
1.109     kristaps 2062:        if (0 == strcmp("on", n->child->string))
1.1       kristaps 2063:                p->flags &= ~TERMP_NONOSPACE;
1.109     kristaps 2064:        else
1.1       kristaps 2065:                p->flags |= TERMP_NONOSPACE;
                   2066:
                   2067:        return(0);
                   2068: }
                   2069:
                   2070:
                   2071: /* ARGSUSED */
                   2072: static int
                   2073: termp_ap_pre(DECL_ARGS)
                   2074: {
                   2075:
                   2076:        p->flags |= TERMP_NOSPACE;
                   2077:        term_word(p, "\\(aq");
                   2078:        p->flags |= TERMP_NOSPACE;
                   2079:        return(1);
                   2080: }
                   2081:
                   2082:
                   2083: /* ARGSUSED */
                   2084: static void
                   2085: termp____post(DECL_ARGS)
                   2086: {
                   2087:
1.95      kristaps 2088:        /* TODO: %U. */
                   2089:
1.1       kristaps 2090:        p->flags |= TERMP_NOSPACE;
1.86      kristaps 2091:        term_word(p, n->next ? "," : ".");
1.1       kristaps 2092: }
                   2093:
                   2094:
                   2095: /* ARGSUSED */
                   2096: static int
1.102     kristaps 2097: termp_li_pre(DECL_ARGS)
                   2098: {
                   2099:
                   2100:        term_fontpush(p, TERMFONT_NONE);
                   2101:        return(1);
                   2102: }
                   2103:
                   2104:
                   2105: /* ARGSUSED */
                   2106: static int
1.1       kristaps 2107: termp_lk_pre(DECL_ARGS)
                   2108: {
1.86      kristaps 2109:        const struct mdoc_node *nn;
1.1       kristaps 2110:
1.102     kristaps 2111:        term_fontpush(p, TERMFONT_UNDER);
1.96      kristaps 2112:        nn = n->child;
                   2113:
                   2114:        if (NULL == nn->next)
1.12      kristaps 2115:                return(1);
                   2116:
1.86      kristaps 2117:        term_word(p, nn->string);
1.102     kristaps 2118:        term_fontpop(p);
1.96      kristaps 2119:
1.1       kristaps 2120:        p->flags |= TERMP_NOSPACE;
                   2121:        term_word(p, ":");
                   2122:
1.102     kristaps 2123:        term_fontpush(p, TERMFONT_BOLD);
1.86      kristaps 2124:        for (nn = nn->next; nn; nn = nn->next)
                   2125:                term_word(p, nn->string);
1.102     kristaps 2126:        term_fontpop(p);
1.12      kristaps 2127:
1.1       kristaps 2128:        return(0);
                   2129: }
                   2130:
                   2131:
                   2132: /* ARGSUSED */
                   2133: static int
1.69      kristaps 2134: termp_under_pre(DECL_ARGS)
1.1       kristaps 2135: {
                   2136:
1.102     kristaps 2137:        term_fontpush(p, TERMFONT_UNDER);
1.84      kristaps 2138:        return(1);
                   2139: }

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