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Annotation of mandoc/mdoc_term.c, Revision 1.125

1.125   ! kristaps    1: /*     $Id: mdoc_term.c,v 1.124 2010/05/15 16:24:38 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:
1.96      kristaps   55: static size_t    a2width(const struct mdoc_argv *, int);
                     56: static size_t    a2height(const struct mdoc_node *);
                     57: static size_t    a2offs(const struct mdoc_argv *);
                     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 *);
1.118     kristaps   63: static int       arg_disptype(const struct mdoc_node *);
1.96      kristaps   64: static int       arg_listtype(const struct mdoc_node *);
                     65: static void      print_bvspace(struct termp *,
                     66:                        const struct mdoc_node *,
                     67:                        const struct mdoc_node *);
1.102     kristaps   68: static void      print_mdoc_node(DECL_ARGS);
                     69: static void      print_mdoc_head(DECL_ARGS);
                     70: static void      print_mdoc_nodelist(DECL_ARGS);
1.96      kristaps   71: static void      print_foot(DECL_ARGS);
                     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);
                     83: static void      termp_fd_post(DECL_ARGS);
                     84: static void      termp_fn_post(DECL_ARGS);
                     85: static void      termp_fo_post(DECL_ARGS);
                     86: static void      termp_ft_post(DECL_ARGS);
                     87: static void      termp_in_post(DECL_ARGS);
                     88: static void      termp_it_post(DECL_ARGS);
                     89: static void      termp_lb_post(DECL_ARGS);
                     90: static void      termp_op_post(DECL_ARGS);
                     91: static void      termp_pf_post(DECL_ARGS);
                     92: static void      termp_pq_post(DECL_ARGS);
                     93: static void      termp_qq_post(DECL_ARGS);
                     94: static void      termp_sh_post(DECL_ARGS);
                     95: static void      termp_sq_post(DECL_ARGS);
                     96: static void      termp_ss_post(DECL_ARGS);
                     97: static void      termp_vt_post(DECL_ARGS);
                     98:
1.61      kristaps   99: static int       termp_an_pre(DECL_ARGS);
1.31      kristaps  100: static int       termp_ap_pre(DECL_ARGS);
                    101: static int       termp_aq_pre(DECL_ARGS);
                    102: static int       termp_bd_pre(DECL_ARGS);
                    103: static int       termp_bf_pre(DECL_ARGS);
1.115     kristaps  104: static int       termp_bl_pre(DECL_ARGS);
1.69      kristaps  105: static int       termp_bold_pre(DECL_ARGS);
1.31      kristaps  106: static int       termp_bq_pre(DECL_ARGS);
                    107: static int       termp_brq_pre(DECL_ARGS);
                    108: static int       termp_bt_pre(DECL_ARGS);
                    109: static int       termp_cd_pre(DECL_ARGS);
                    110: static int       termp_d1_pre(DECL_ARGS);
                    111: static int       termp_dq_pre(DECL_ARGS);
                    112: static int       termp_ex_pre(DECL_ARGS);
                    113: static int       termp_fa_pre(DECL_ARGS);
                    114: static int       termp_fl_pre(DECL_ARGS);
                    115: static int       termp_fn_pre(DECL_ARGS);
                    116: static int       termp_fo_pre(DECL_ARGS);
                    117: static int       termp_ft_pre(DECL_ARGS);
                    118: static int       termp_in_pre(DECL_ARGS);
                    119: static int       termp_it_pre(DECL_ARGS);
1.102     kristaps  120: static int       termp_li_pre(DECL_ARGS);
1.31      kristaps  121: static int       termp_lk_pre(DECL_ARGS);
                    122: static int       termp_nd_pre(DECL_ARGS);
                    123: static int       termp_nm_pre(DECL_ARGS);
                    124: static int       termp_ns_pre(DECL_ARGS);
                    125: static int       termp_op_pre(DECL_ARGS);
                    126: static int       termp_pf_pre(DECL_ARGS);
                    127: static int       termp_pq_pre(DECL_ARGS);
                    128: static int       termp_qq_pre(DECL_ARGS);
                    129: static int       termp_rs_pre(DECL_ARGS);
                    130: static int       termp_rv_pre(DECL_ARGS);
                    131: static int       termp_sh_pre(DECL_ARGS);
                    132: static int       termp_sm_pre(DECL_ARGS);
1.45      kristaps  133: static int       termp_sp_pre(DECL_ARGS);
1.31      kristaps  134: static int       termp_sq_pre(DECL_ARGS);
                    135: static int       termp_ss_pre(DECL_ARGS);
1.69      kristaps  136: static int       termp_under_pre(DECL_ARGS);
1.31      kristaps  137: static int       termp_ud_pre(DECL_ARGS);
1.110     kristaps  138: static int       termp_vt_pre(DECL_ARGS);
1.31      kristaps  139: static int       termp_xr_pre(DECL_ARGS);
                    140: static int       termp_xx_pre(DECL_ARGS);
                    141:
1.70      kristaps  142: static const struct termact termacts[MDOC_MAX] = {
1.14      kristaps  143:        { termp_ap_pre, NULL }, /* Ap */
1.1       kristaps  144:        { NULL, NULL }, /* Dd */
                    145:        { NULL, NULL }, /* Dt */
                    146:        { NULL, NULL }, /* Os */
                    147:        { termp_sh_pre, termp_sh_post }, /* Sh */
                    148:        { termp_ss_pre, termp_ss_post }, /* Ss */
1.76      kristaps  149:        { termp_sp_pre, NULL }, /* Pp */
1.1       kristaps  150:        { termp_d1_pre, termp_d1_post }, /* D1 */
                    151:        { termp_d1_pre, termp_d1_post }, /* Dl */
                    152:        { termp_bd_pre, termp_bd_post }, /* Bd */
                    153:        { NULL, NULL }, /* Ed */
1.115     kristaps  154:        { termp_bl_pre, termp_bl_post }, /* Bl */
1.1       kristaps  155:        { NULL, NULL }, /* El */
                    156:        { termp_it_pre, termp_it_post }, /* It */
                    157:        { NULL, NULL }, /* Ad */
1.61      kristaps  158:        { termp_an_pre, termp_an_post }, /* An */
1.69      kristaps  159:        { termp_under_pre, NULL }, /* Ar */
1.1       kristaps  160:        { termp_cd_pre, NULL }, /* Cd */
1.69      kristaps  161:        { termp_bold_pre, NULL }, /* Cm */
1.1       kristaps  162:        { NULL, NULL }, /* Dv */
                    163:        { NULL, NULL }, /* Er */
                    164:        { NULL, NULL }, /* Ev */
                    165:        { termp_ex_pre, NULL }, /* Ex */
                    166:        { termp_fa_pre, NULL }, /* Fa */
1.69      kristaps  167:        { termp_bold_pre, termp_fd_post }, /* Fd */
1.1       kristaps  168:        { termp_fl_pre, NULL }, /* Fl */
                    169:        { termp_fn_pre, termp_fn_post }, /* Fn */
                    170:        { termp_ft_pre, termp_ft_post }, /* Ft */
1.69      kristaps  171:        { termp_bold_pre, NULL }, /* Ic */
1.1       kristaps  172:        { termp_in_pre, termp_in_post }, /* In */
1.102     kristaps  173:        { termp_li_pre, NULL }, /* Li */
1.1       kristaps  174:        { termp_nd_pre, NULL }, /* Nd */
                    175:        { termp_nm_pre, NULL }, /* Nm */
                    176:        { termp_op_pre, termp_op_post }, /* Op */
                    177:        { NULL, NULL }, /* Ot */
1.69      kristaps  178:        { termp_under_pre, NULL }, /* Pa */
1.1       kristaps  179:        { termp_rv_pre, NULL }, /* Rv */
1.36      kristaps  180:        { NULL, NULL }, /* St */
1.69      kristaps  181:        { termp_under_pre, NULL }, /* Va */
1.110     kristaps  182:        { termp_vt_pre, termp_vt_post }, /* Vt */
1.1       kristaps  183:        { termp_xr_pre, NULL }, /* Xr */
                    184:        { NULL, termp____post }, /* %A */
1.84      kristaps  185:        { termp_under_pre, termp____post }, /* %B */
1.1       kristaps  186:        { NULL, termp____post }, /* %D */
1.84      kristaps  187:        { termp_under_pre, termp____post }, /* %I */
1.69      kristaps  188:        { termp_under_pre, termp____post }, /* %J */
1.1       kristaps  189:        { NULL, termp____post }, /* %N */
                    190:        { NULL, termp____post }, /* %O */
                    191:        { NULL, termp____post }, /* %P */
                    192:        { NULL, termp____post }, /* %R */
1.117     kristaps  193:        { termp_under_pre, termp____post }, /* %T */
1.1       kristaps  194:        { NULL, termp____post }, /* %V */
                    195:        { NULL, NULL }, /* Ac */
                    196:        { termp_aq_pre, termp_aq_post }, /* Ao */
                    197:        { termp_aq_pre, termp_aq_post }, /* Aq */
1.35      kristaps  198:        { NULL, NULL }, /* At */
1.1       kristaps  199:        { NULL, NULL }, /* Bc */
                    200:        { termp_bf_pre, NULL }, /* Bf */
                    201:        { termp_bq_pre, termp_bq_post }, /* Bo */
                    202:        { termp_bq_pre, termp_bq_post }, /* Bq */
1.26      kristaps  203:        { termp_xx_pre, NULL }, /* Bsx */
1.1       kristaps  204:        { NULL, termp_bx_post }, /* Bx */
                    205:        { NULL, NULL }, /* Db */
                    206:        { NULL, NULL }, /* Dc */
                    207:        { termp_dq_pre, termp_dq_post }, /* Do */
                    208:        { termp_dq_pre, termp_dq_post }, /* Dq */
1.112     kristaps  209:        { NULL, NULL }, /* Ec */ /* FIXME: no space */
1.1       kristaps  210:        { NULL, NULL }, /* Ef */
1.69      kristaps  211:        { termp_under_pre, NULL }, /* Em */
1.1       kristaps  212:        { NULL, NULL }, /* Eo */
1.26      kristaps  213:        { termp_xx_pre, NULL }, /* Fx */
1.80      kristaps  214:        { termp_bold_pre, NULL }, /* Ms */ /* FIXME: convert to symbol? */
1.1       kristaps  215:        { NULL, NULL }, /* No */
                    216:        { termp_ns_pre, NULL }, /* Ns */
1.26      kristaps  217:        { termp_xx_pre, NULL }, /* Nx */
                    218:        { termp_xx_pre, NULL }, /* Ox */
1.1       kristaps  219:        { NULL, NULL }, /* Pc */
                    220:        { termp_pf_pre, termp_pf_post }, /* Pf */
                    221:        { termp_pq_pre, termp_pq_post }, /* Po */
                    222:        { termp_pq_pre, termp_pq_post }, /* Pq */
                    223:        { NULL, NULL }, /* Qc */
                    224:        { termp_sq_pre, termp_sq_post }, /* Ql */
                    225:        { termp_qq_pre, termp_qq_post }, /* Qo */
                    226:        { termp_qq_pre, termp_qq_post }, /* Qq */
                    227:        { NULL, NULL }, /* Re */
                    228:        { termp_rs_pre, NULL }, /* Rs */
                    229:        { NULL, NULL }, /* Sc */
                    230:        { termp_sq_pre, termp_sq_post }, /* So */
                    231:        { termp_sq_pre, termp_sq_post }, /* Sq */
                    232:        { termp_sm_pre, NULL }, /* Sm */
1.69      kristaps  233:        { termp_under_pre, NULL }, /* Sx */
                    234:        { termp_bold_pre, NULL }, /* Sy */
1.1       kristaps  235:        { NULL, NULL }, /* Tn */
1.26      kristaps  236:        { termp_xx_pre, NULL }, /* Ux */
1.1       kristaps  237:        { NULL, NULL }, /* Xc */
                    238:        { NULL, NULL }, /* Xo */
                    239:        { termp_fo_pre, termp_fo_post }, /* Fo */
                    240:        { NULL, NULL }, /* Fc */
                    241:        { termp_op_pre, termp_op_post }, /* Oo */
                    242:        { NULL, NULL }, /* Oc */
                    243:        { NULL, NULL }, /* Bk */
                    244:        { NULL, NULL }, /* Ek */
                    245:        { termp_bt_pre, NULL }, /* Bt */
                    246:        { NULL, NULL }, /* Hf */
                    247:        { NULL, NULL }, /* Fr */
                    248:        { termp_ud_pre, NULL }, /* Ud */
1.37      kristaps  249:        { NULL, termp_lb_post }, /* Lb */
1.76      kristaps  250:        { termp_sp_pre, NULL }, /* Lp */
1.1       kristaps  251:        { termp_lk_pre, NULL }, /* Lk */
1.69      kristaps  252:        { termp_under_pre, NULL }, /* Mt */
1.1       kristaps  253:        { termp_brq_pre, termp_brq_post }, /* Brq */
                    254:        { termp_brq_pre, termp_brq_post }, /* Bro */
                    255:        { NULL, NULL }, /* Brc */
1.83      kristaps  256:        { NULL, termp____post }, /* %C */
1.81      kristaps  257:        { NULL, NULL }, /* Es */ /* TODO */
                    258:        { NULL, NULL }, /* En */ /* TODO */
1.26      kristaps  259:        { termp_xx_pre, NULL }, /* Dx */
1.83      kristaps  260:        { NULL, termp____post }, /* %Q */
1.76      kristaps  261:        { termp_sp_pre, NULL }, /* br */
1.45      kristaps  262:        { termp_sp_pre, NULL }, /* sp */
1.96      kristaps  263:        { termp_under_pre, termp____post }, /* %U */
1.1       kristaps  264: };
                    265:
                    266:
1.70      kristaps  267: void
1.89      kristaps  268: terminal_mdoc(void *arg, const struct mdoc *mdoc)
1.1       kristaps  269: {
1.70      kristaps  270:        const struct mdoc_node  *n;
                    271:        const struct mdoc_meta  *m;
1.89      kristaps  272:        struct termp            *p;
                    273:
                    274:        p = (struct termp *)arg;
1.111     kristaps  275:
                    276:        p->overstep = 0;
1.123     joerg     277:        p->maxrmargin = p->defrmargin;
1.89      kristaps  278:
                    279:        if (NULL == p->symtab)
                    280:                switch (p->enc) {
                    281:                case (TERMENC_ASCII):
                    282:                        p->symtab = chars_init(CHARS_ASCII);
                    283:                        break;
                    284:                default:
                    285:                        abort();
                    286:                        /* NOTREACHED */
                    287:                }
1.70      kristaps  288:
                    289:        n = mdoc_node(mdoc);
                    290:        m = mdoc_meta(mdoc);
                    291:
1.102     kristaps  292:        print_mdoc_head(p, NULL, m, n);
1.70      kristaps  293:        if (n->child)
1.102     kristaps  294:                print_mdoc_nodelist(p, NULL, m, n->child);
1.70      kristaps  295:        print_foot(p, NULL, m, n);
1.1       kristaps  296: }
                    297:
                    298:
1.3       kristaps  299: static void
1.102     kristaps  300: print_mdoc_nodelist(DECL_ARGS)
1.1       kristaps  301: {
                    302:
1.102     kristaps  303:        print_mdoc_node(p, pair, m, n);
1.86      kristaps  304:        if (n->next)
1.102     kristaps  305:                print_mdoc_nodelist(p, pair, m, n->next);
1.1       kristaps  306: }
                    307:
                    308:
1.70      kristaps  309: /* ARGSUSED */
1.3       kristaps  310: static void
1.102     kristaps  311: print_mdoc_node(DECL_ARGS)
1.1       kristaps  312: {
1.102     kristaps  313:        int              chld;
                    314:        const void      *font;
1.1       kristaps  315:        struct termpair  npair;
1.30      kristaps  316:        size_t           offset, rmargin;
1.1       kristaps  317:
1.70      kristaps  318:        chld = 1;
1.29      kristaps  319:        offset = p->offset;
1.30      kristaps  320:        rmargin = p->rmargin;
1.102     kristaps  321:        font = term_fontq(p);
1.29      kristaps  322:
1.97      kristaps  323:        memset(&npair, 0, sizeof(struct termpair));
1.1       kristaps  324:        npair.ppair = pair;
1.46      kristaps  325:
1.86      kristaps  326:        if (MDOC_TEXT != n->type) {
                    327:                if (termacts[n->tok].pre)
                    328:                        chld = (*termacts[n->tok].pre)(p, &npair, m, n);
1.70      kristaps  329:        } else
1.86      kristaps  330:                term_word(p, n->string);
1.102     kristaps  331:
1.86      kristaps  332:        if (chld && n->child)
1.102     kristaps  333:                print_mdoc_nodelist(p, &npair, m, n->child);
1.1       kristaps  334:
1.102     kristaps  335:        term_fontpopq(p, font);
1.46      kristaps  336:
1.86      kristaps  337:        if (MDOC_TEXT != n->type)
                    338:                if (termacts[n->tok].post)
                    339:                        (*termacts[n->tok].post)(p, &npair, m, n);
1.121     kristaps  340:
                    341:        if (MDOC_EOS & n->flags)
                    342:                p->flags |= TERMP_SENTENCE;
1.29      kristaps  343:
                    344:        p->offset = offset;
1.30      kristaps  345:        p->rmargin = rmargin;
1.1       kristaps  346: }
                    347:
                    348:
1.70      kristaps  349: /* ARGSUSED */
1.3       kristaps  350: static void
1.70      kristaps  351: print_foot(DECL_ARGS)
1.1       kristaps  352: {
1.98      kristaps  353:        char            buf[DATESIZ], os[BUFSIZ];
1.1       kristaps  354:
1.102     kristaps  355:        term_fontrepl(p, TERMFONT_NONE);
1.101     kristaps  356:
1.9       kristaps  357:        /*
                    358:         * Output the footer in new-groff style, that is, three columns
                    359:         * with the middle being the manual date and flanking columns
                    360:         * being the operating system:
                    361:         *
                    362:         * SYSTEM                  DATE                    SYSTEM
                    363:         */
                    364:
1.94      kristaps  365:        time2a(m->date, buf, DATESIZ);
1.98      kristaps  366:        strlcpy(os, m->os, BUFSIZ);
1.1       kristaps  367:
                    368:        term_vspace(p);
                    369:
1.9       kristaps  370:        p->offset = 0;
                    371:        p->rmargin = (p->maxrmargin - strlen(buf) + 1) / 2;
1.1       kristaps  372:        p->flags |= TERMP_NOSPACE | TERMP_NOBREAK;
                    373:
                    374:        term_word(p, os);
                    375:        term_flushln(p);
                    376:
1.9       kristaps  377:        p->offset = p->rmargin;
                    378:        p->rmargin = p->maxrmargin - strlen(os);
1.1       kristaps  379:        p->flags |= TERMP_NOLPAD | TERMP_NOSPACE;
1.9       kristaps  380:
                    381:        term_word(p, buf);
                    382:        term_flushln(p);
                    383:
1.1       kristaps  384:        p->offset = p->rmargin;
                    385:        p->rmargin = p->maxrmargin;
                    386:        p->flags &= ~TERMP_NOBREAK;
1.9       kristaps  387:        p->flags |= TERMP_NOLPAD | TERMP_NOSPACE;
1.1       kristaps  388:
1.9       kristaps  389:        term_word(p, os);
1.1       kristaps  390:        term_flushln(p);
                    391:
1.9       kristaps  392:        p->offset = 0;
                    393:        p->rmargin = p->maxrmargin;
                    394:        p->flags = 0;
1.1       kristaps  395: }
                    396:
                    397:
1.70      kristaps  398: /* ARGSUSED */
1.3       kristaps  399: static void
1.102     kristaps  400: print_mdoc_head(DECL_ARGS)
1.1       kristaps  401: {
1.98      kristaps  402:        char            buf[BUFSIZ], title[BUFSIZ];
1.1       kristaps  403:
                    404:        p->rmargin = p->maxrmargin;
                    405:        p->offset = 0;
                    406:
                    407:        /*
                    408:         * The header is strange.  It has three components, which are
                    409:         * really two with the first duplicated.  It goes like this:
                    410:         *
                    411:         * IDENTIFIER              TITLE                   IDENTIFIER
                    412:         *
                    413:         * The IDENTIFIER is NAME(SECTION), which is the command-name
                    414:         * (if given, or "unknown" if not) followed by the manual page
                    415:         * section.  These are given in `Dt'.  The TITLE is a free-form
                    416:         * string depending on the manual volume.  If not specified, it
                    417:         * switches on the manual section.
                    418:         */
                    419:
1.86      kristaps  420:        assert(m->vol);
1.98      kristaps  421:        strlcpy(buf, m->vol, BUFSIZ);
1.1       kristaps  422:
1.86      kristaps  423:        if (m->arch) {
1.98      kristaps  424:                strlcat(buf, " (", BUFSIZ);
                    425:                strlcat(buf, m->arch, BUFSIZ);
                    426:                strlcat(buf, ")", BUFSIZ);
1.1       kristaps  427:        }
                    428:
1.124     kristaps  429:        snprintf(title, BUFSIZ, "%s(%s)", m->title, m->msec);
1.1       kristaps  430:
                    431:        p->offset = 0;
1.8       kristaps  432:        p->rmargin = (p->maxrmargin - strlen(buf) + 1) / 2;
1.1       kristaps  433:        p->flags |= TERMP_NOBREAK | TERMP_NOSPACE;
                    434:
                    435:        term_word(p, title);
                    436:        term_flushln(p);
                    437:
                    438:        p->offset = p->rmargin;
                    439:        p->rmargin = p->maxrmargin - strlen(title);
1.9       kristaps  440:        p->flags |= TERMP_NOLPAD | TERMP_NOSPACE;
1.1       kristaps  441:
                    442:        term_word(p, buf);
                    443:        term_flushln(p);
                    444:
                    445:        p->offset = p->rmargin;
                    446:        p->rmargin = p->maxrmargin;
                    447:        p->flags &= ~TERMP_NOBREAK;
                    448:        p->flags |= TERMP_NOLPAD | TERMP_NOSPACE;
                    449:
                    450:        term_word(p, title);
                    451:        term_flushln(p);
                    452:
1.9       kristaps  453:        p->offset = 0;
1.1       kristaps  454:        p->rmargin = p->maxrmargin;
                    455:        p->flags &= ~TERMP_NOSPACE;
                    456: }
                    457:
                    458:
                    459: static size_t
1.96      kristaps  460: a2height(const struct mdoc_node *n)
1.1       kristaps  461: {
1.92      kristaps  462:        struct roffsu    su;
1.91      kristaps  463:
                    464:        assert(MDOC_TEXT == n->type);
                    465:        assert(n->string);
1.92      kristaps  466:        if ( ! a2roffsu(n->string, &su, SCALE_VS))
                    467:                SCALE_VS_INIT(&su, strlen(n->string));
1.91      kristaps  468:
1.92      kristaps  469:        return(term_vspan(&su));
1.91      kristaps  470: }
1.1       kristaps  471:
1.40      kristaps  472:
1.91      kristaps  473: static size_t
1.96      kristaps  474: a2width(const struct mdoc_argv *arg, int pos)
1.91      kristaps  475: {
1.92      kristaps  476:        struct roffsu    su;
1.1       kristaps  477:
1.91      kristaps  478:        assert(arg->value[pos]);
1.92      kristaps  479:        if ( ! a2roffsu(arg->value[pos], &su, SCALE_MAX))
1.93      kristaps  480:                SCALE_HS_INIT(&su, strlen(arg->value[pos]));
1.1       kristaps  481:
1.108     kristaps  482:        return(term_hspan(&su));
1.1       kristaps  483: }
                    484:
                    485:
                    486: static int
1.118     kristaps  487: arg_disptype(const struct mdoc_node *n)
                    488: {
                    489:        int              i, len;
                    490:
                    491:        assert(MDOC_BLOCK == n->type);
                    492:
                    493:        len = (int)(n->args ? n->args->argc : 0);
                    494:
                    495:        for (i = 0; i < len; i++)
                    496:                switch (n->args->argv[i].arg) {
                    497:                case (MDOC_Centred):
                    498:                        /* FALLTHROUGH */
                    499:                case (MDOC_Ragged):
                    500:                        /* FALLTHROUGH */
                    501:                case (MDOC_Filled):
                    502:                        /* FALLTHROUGH */
                    503:                case (MDOC_Unfilled):
                    504:                        /* FALLTHROUGH */
                    505:                case (MDOC_Literal):
                    506:                        return(n->args->argv[i].arg);
                    507:                default:
                    508:                        break;
                    509:                }
                    510:
                    511:        return(-1);
                    512: }
                    513:
                    514:
                    515: static int
1.1       kristaps  516: arg_listtype(const struct mdoc_node *n)
                    517: {
                    518:        int              i, len;
                    519:
                    520:        assert(MDOC_BLOCK == n->type);
                    521:
                    522:        len = (int)(n->args ? n->args->argc : 0);
                    523:
                    524:        for (i = 0; i < len; i++)
                    525:                switch (n->args->argv[i].arg) {
                    526:                case (MDOC_Bullet):
                    527:                        /* FALLTHROUGH */
                    528:                case (MDOC_Dash):
                    529:                        /* FALLTHROUGH */
                    530:                case (MDOC_Enum):
                    531:                        /* FALLTHROUGH */
                    532:                case (MDOC_Hyphen):
                    533:                        /* FALLTHROUGH */
                    534:                case (MDOC_Tag):
                    535:                        /* FALLTHROUGH */
                    536:                case (MDOC_Inset):
                    537:                        /* FALLTHROUGH */
                    538:                case (MDOC_Diag):
                    539:                        /* FALLTHROUGH */
                    540:                case (MDOC_Item):
                    541:                        /* FALLTHROUGH */
                    542:                case (MDOC_Column):
                    543:                        /* FALLTHROUGH */
1.38      kristaps  544:                case (MDOC_Hang):
                    545:                        /* FALLTHROUGH */
1.1       kristaps  546:                case (MDOC_Ohang):
                    547:                        return(n->args->argv[i].arg);
                    548:                default:
                    549:                        break;
                    550:                }
                    551:
1.38      kristaps  552:        return(-1);
1.1       kristaps  553: }
                    554:
                    555:
                    556: static size_t
1.96      kristaps  557: a2offs(const struct mdoc_argv *arg)
1.1       kristaps  558: {
1.92      kristaps  559:        struct roffsu    su;
1.1       kristaps  560:
1.91      kristaps  561:        if ('\0' == arg->value[0][0])
                    562:                return(0);
                    563:        else if (0 == strcmp(arg->value[0], "left"))
1.19      kristaps  564:                return(0);
1.91      kristaps  565:        else if (0 == strcmp(arg->value[0], "indent"))
1.16      kristaps  566:                return(INDENT + 1);
1.91      kristaps  567:        else if (0 == strcmp(arg->value[0], "indent-two"))
1.20      kristaps  568:                return((INDENT + 1) * 2);
1.92      kristaps  569:        else if ( ! a2roffsu(arg->value[0], &su, SCALE_MAX))
                    570:                SCALE_HS_INIT(&su, strlen(arg->value[0]));
1.10      kristaps  571:
1.92      kristaps  572:        return(term_hspan(&su));
1.1       kristaps  573: }
                    574:
                    575:
1.108     kristaps  576: /*
                    577:  * Return 1 if an argument has a particular argument value or 0 if it
                    578:  * does not.  See arg_getattr().
                    579:  */
1.1       kristaps  580: static int
                    581: arg_hasattr(int arg, const struct mdoc_node *n)
                    582: {
                    583:
                    584:        return(-1 != arg_getattr(arg, n));
                    585: }
                    586:
                    587:
1.108     kristaps  588: /*
                    589:  * Get the index of an argument in a node's argument list or -1 if it
                    590:  * does not exist.  See arg_getattrs().
                    591:  */
1.1       kristaps  592: static int
                    593: arg_getattr(int v, const struct mdoc_node *n)
                    594: {
                    595:        int              val;
                    596:
                    597:        return(arg_getattrs(&v, &val, 1, n) ? val : -1);
                    598: }
                    599:
                    600:
1.108     kristaps  601: /*
                    602:  * Walk through the argument list for a node and fill an array "vals"
                    603:  * with the positions of the argument structures listed in "keys".
                    604:  * Return the number of elements that were written into "vals", which
                    605:  * can be zero.
                    606:  */
1.1       kristaps  607: static int
                    608: arg_getattrs(const int *keys, int *vals,
                    609:                size_t sz, const struct mdoc_node *n)
                    610: {
                    611:        int              i, j, k;
                    612:
                    613:        if (NULL == n->args)
                    614:                return(0);
                    615:
                    616:        for (k = i = 0; i < (int)n->args->argc; i++)
                    617:                for (j = 0; j < (int)sz; j++)
                    618:                        if (n->args->argv[i].arg == keys[j]) {
                    619:                                vals[j] = i;
                    620:                                k++;
                    621:                        }
                    622:        return(k);
                    623: }
                    624:
                    625:
1.108     kristaps  626: /*
                    627:  * Determine how much space to print out before block elements of `It'
                    628:  * (and thus `Bl') and `Bd'.  And then go ahead and print that space,
                    629:  * too.
                    630:  */
1.54      kristaps  631: static void
1.91      kristaps  632: print_bvspace(struct termp *p,
1.1       kristaps  633:                const struct mdoc_node *bl,
1.86      kristaps  634:                const struct mdoc_node *n)
1.1       kristaps  635: {
1.86      kristaps  636:        const struct mdoc_node  *nn;
1.1       kristaps  637:
                    638:        term_newln(p);
1.85      kristaps  639:        if (arg_hasattr(MDOC_Compact, bl))
1.54      kristaps  640:                return;
                    641:
1.85      kristaps  642:        /* Do not vspace directly after Ss/Sh. */
1.1       kristaps  643:
1.86      kristaps  644:        for (nn = n; nn; nn = nn->parent) {
                    645:                if (MDOC_BLOCK != nn->type)
1.1       kristaps  646:                        continue;
1.86      kristaps  647:                if (MDOC_Ss == nn->tok)
1.54      kristaps  648:                        return;
1.86      kristaps  649:                if (MDOC_Sh == nn->tok)
1.54      kristaps  650:                        return;
1.86      kristaps  651:                if (NULL == nn->prev)
1.1       kristaps  652:                        continue;
                    653:                break;
                    654:        }
                    655:
1.85      kristaps  656:        /* A `-column' does not assert vspace within the list. */
1.54      kristaps  657:
1.59      kristaps  658:        if (MDOC_Bl == bl->tok && arg_hasattr(MDOC_Column, bl))
1.86      kristaps  659:                if (n->prev && MDOC_It == n->prev->tok)
1.54      kristaps  660:                        return;
                    661:
1.85      kristaps  662:        /* A `-diag' without body does not vspace. */
                    663:
1.59      kristaps  664:        if (MDOC_Bl == bl->tok && arg_hasattr(MDOC_Diag, bl))
1.86      kristaps  665:                if (n->prev && MDOC_It == n->prev->tok) {
                    666:                        assert(n->prev->body);
                    667:                        if (NULL == n->prev->body->child)
1.55      kristaps  668:                                return;
                    669:                }
                    670:
1.54      kristaps  671:        term_vspace(p);
1.1       kristaps  672: }
                    673:
                    674:
                    675: /* ARGSUSED */
                    676: static int
                    677: termp_dq_pre(DECL_ARGS)
                    678: {
                    679:
1.86      kristaps  680:        if (MDOC_BODY != n->type)
1.1       kristaps  681:                return(1);
                    682:
                    683:        term_word(p, "\\(lq");
                    684:        p->flags |= TERMP_NOSPACE;
                    685:        return(1);
                    686: }
                    687:
                    688:
                    689: /* ARGSUSED */
                    690: static void
                    691: termp_dq_post(DECL_ARGS)
                    692: {
                    693:
1.86      kristaps  694:        if (MDOC_BODY != n->type)
1.1       kristaps  695:                return;
                    696:
                    697:        p->flags |= TERMP_NOSPACE;
                    698:        term_word(p, "\\(rq");
                    699: }
                    700:
                    701:
                    702: /* ARGSUSED */
                    703: static int
                    704: termp_it_pre(DECL_ARGS)
                    705: {
1.86      kristaps  706:        const struct mdoc_node *bl, *nn;
1.1       kristaps  707:        char                    buf[7];
1.39      kristaps  708:        int                     i, type, keys[3], vals[3];
1.108     kristaps  709:        size_t                  width, offset, ncols, dcol;
1.1       kristaps  710:
1.86      kristaps  711:        if (MDOC_BLOCK == n->type) {
1.91      kristaps  712:                print_bvspace(p, n->parent->parent, n);
1.54      kristaps  713:                return(1);
                    714:        }
1.1       kristaps  715:
1.86      kristaps  716:        bl = n->parent->parent->parent;
1.1       kristaps  717:
1.108     kristaps  718:        /* Get list width, offset, and list type from argument list. */
1.1       kristaps  719:
                    720:        keys[0] = MDOC_Width;
                    721:        keys[1] = MDOC_Offset;
                    722:        keys[2] = MDOC_Column;
                    723:
                    724:        vals[0] = vals[1] = vals[2] = -1;
                    725:
1.108     kristaps  726:        arg_getattrs(keys, vals, 3, bl);
1.1       kristaps  727:
                    728:        type = arg_listtype(bl);
1.38      kristaps  729:        assert(-1 != type);
1.1       kristaps  730:
1.108     kristaps  731:        /*
                    732:         * First calculate width and offset.  This is pretty easy unless
                    733:         * we're a -column list, in which case all prior columns must
                    734:         * be accounted for.
                    735:         */
                    736:
                    737:        width = offset = 0;
                    738:
1.105     kristaps  739:        if (vals[1] >= 0)
                    740:                offset = a2offs(&bl->args->argv[vals[1]]);
                    741:
1.1       kristaps  742:        switch (type) {
                    743:        case (MDOC_Column):
1.86      kristaps  744:                if (MDOC_BODY == n->type)
1.1       kristaps  745:                        break;
1.105     kristaps  746:                /*
1.108     kristaps  747:                 * Imitate groff's column handling:
                    748:                 * - For each earlier column, add its width.
                    749:                 * - For less than 5 columns, add four more blanks per
                    750:                 *   column.
                    751:                 * - For exactly 5 columns, add three more blank per
                    752:                 *   column.
                    753:                 * - For more than 5 columns, add only one column.
1.105     kristaps  754:                 */
                    755:                ncols = bl->args->argv[vals[2]].sz;
1.108     kristaps  756:                /* LINTED */
                    757:                dcol = ncols < 5 ? 4 : ncols == 5 ? 3 : 1;
                    758:
                    759:                for (i = 0, nn = n->prev;
                    760:                                nn && i < (int)ncols;
                    761:                                nn = nn->prev, i++)
                    762:                        offset += dcol + a2width
                    763:                                (&bl->args->argv[vals[2]], i);
                    764:
1.105     kristaps  765:
                    766:                /*
1.108     kristaps  767:                 * When exceeding the declared number of columns, leave
                    768:                 * the remaining widths at 0.  This will later be
                    769:                 * adjusted to the default width of 10, or, for the last
                    770:                 * column, stretched to the right margin.
1.58      kristaps  771:                 */
1.108     kristaps  772:                if (i >= (int)ncols)
                    773:                        break;
1.58      kristaps  774:
1.105     kristaps  775:                /*
1.108     kristaps  776:                 * Use the declared column widths, extended as explained
                    777:                 * in the preceding paragraph.
1.105     kristaps  778:                 */
1.108     kristaps  779:                width = a2width(&bl->args->argv[vals[2]], i) + dcol;
1.1       kristaps  780:                break;
                    781:        default:
1.108     kristaps  782:                if (vals[0] < 0)
                    783:                        break;
                    784:
                    785:                /*
                    786:                 * Note: buffer the width by 2, which is groff's magic
                    787:                 * number for buffering single arguments.  See the above
                    788:                 * handling for column for how this changes.
                    789:                 */
                    790:                width = a2width(&bl->args->argv[vals[0]], 0) + 2;
1.1       kristaps  791:                break;
                    792:        }
                    793:
                    794:        /*
                    795:         * List-type can override the width in the case of fixed-head
                    796:         * values (bullet, dash/hyphen, enum).  Tags need a non-zero
1.67      kristaps  797:         * offset.
1.1       kristaps  798:         */
                    799:
                    800:        switch (type) {
                    801:        case (MDOC_Bullet):
                    802:                /* FALLTHROUGH */
                    803:        case (MDOC_Dash):
                    804:                /* FALLTHROUGH */
                    805:        case (MDOC_Hyphen):
                    806:                if (width < 4)
                    807:                        width = 4;
                    808:                break;
1.17      kristaps  809:        case (MDOC_Enum):
                    810:                if (width < 5)
                    811:                        width = 5;
                    812:                break;
1.38      kristaps  813:        case (MDOC_Hang):
1.39      kristaps  814:                if (0 == width)
                    815:                        width = 8;
                    816:                break;
1.49      kristaps  817:        case (MDOC_Column):
                    818:                /* FALLTHROUGH */
1.1       kristaps  819:        case (MDOC_Tag):
                    820:                if (0 == width)
                    821:                        width = 10;
                    822:                break;
                    823:        default:
                    824:                break;
                    825:        }
                    826:
                    827:        /*
1.17      kristaps  828:         * Whitespace control.  Inset bodies need an initial space,
                    829:         * while diagonal bodies need two.
1.1       kristaps  830:         */
                    831:
1.51      kristaps  832:        p->flags |= TERMP_NOSPACE;
                    833:
1.1       kristaps  834:        switch (type) {
1.51      kristaps  835:        case (MDOC_Diag):
1.86      kristaps  836:                if (MDOC_BODY == n->type)
1.62      kristaps  837:                        term_word(p, "\\ \\ ");
1.51      kristaps  838:                break;
1.1       kristaps  839:        case (MDOC_Inset):
1.86      kristaps  840:                if (MDOC_BODY == n->type)
1.51      kristaps  841:                        term_word(p, "\\ ");
1.1       kristaps  842:                break;
                    843:        default:
                    844:                break;
                    845:        }
                    846:
1.51      kristaps  847:        p->flags |= TERMP_NOSPACE;
                    848:
1.1       kristaps  849:        switch (type) {
                    850:        case (MDOC_Diag):
1.86      kristaps  851:                if (MDOC_HEAD == n->type)
1.102     kristaps  852:                        term_fontpush(p, TERMFONT_BOLD);
1.1       kristaps  853:                break;
                    854:        default:
                    855:                break;
                    856:        }
                    857:
                    858:        /*
1.109     kristaps  859:         * Pad and break control.  This is the tricky part.  These flags
                    860:         * are documented in term_flushln() in term.c.  Note that we're
                    861:         * going to unset all of these flags in termp_it_post() when we
                    862:         * exit.
1.1       kristaps  863:         */
                    864:
                    865:        switch (type) {
                    866:        case (MDOC_Bullet):
                    867:                /* FALLTHROUGH */
                    868:        case (MDOC_Dash):
                    869:                /* FALLTHROUGH */
                    870:        case (MDOC_Enum):
                    871:                /* FALLTHROUGH */
                    872:        case (MDOC_Hyphen):
1.86      kristaps  873:                if (MDOC_HEAD == n->type)
1.39      kristaps  874:                        p->flags |= TERMP_NOBREAK;
                    875:                else
                    876:                        p->flags |= TERMP_NOLPAD;
                    877:                break;
1.38      kristaps  878:        case (MDOC_Hang):
1.86      kristaps  879:                if (MDOC_HEAD == n->type)
1.39      kristaps  880:                        p->flags |= TERMP_NOBREAK;
                    881:                else
                    882:                        p->flags |= TERMP_NOLPAD;
                    883:
1.86      kristaps  884:                if (MDOC_HEAD != n->type)
1.59      kristaps  885:                        break;
                    886:
                    887:                /*
                    888:                 * This is ugly.  If `-hang' is specified and the body
                    889:                 * is a `Bl' or `Bd', then we want basically to nullify
                    890:                 * the "overstep" effect in term_flushln() and treat
                    891:                 * this as a `-ohang' list instead.
                    892:                 */
1.86      kristaps  893:                if (n->next->child &&
                    894:                                (MDOC_Bl == n->next->child->tok ||
                    895:                                 MDOC_Bd == n->next->child->tok)) {
1.59      kristaps  896:                        p->flags &= ~TERMP_NOBREAK;
                    897:                        p->flags &= ~TERMP_NOLPAD;
                    898:                } else
1.39      kristaps  899:                        p->flags |= TERMP_HANG;
                    900:                break;
1.1       kristaps  901:        case (MDOC_Tag):
1.86      kristaps  902:                if (MDOC_HEAD == n->type)
1.51      kristaps  903:                        p->flags |= TERMP_NOBREAK | TERMP_TWOSPACE;
1.1       kristaps  904:                else
                    905:                        p->flags |= TERMP_NOLPAD;
1.38      kristaps  906:
1.86      kristaps  907:                if (MDOC_HEAD != n->type)
1.39      kristaps  908:                        break;
1.86      kristaps  909:                if (NULL == n->next || NULL == n->next->child)
1.39      kristaps  910:                        p->flags |= TERMP_DANGLE;
1.1       kristaps  911:                break;
                    912:        case (MDOC_Column):
1.86      kristaps  913:                if (MDOC_HEAD == n->type) {
                    914:                        assert(n->next);
                    915:                        if (MDOC_BODY == n->next->type)
1.1       kristaps  916:                                p->flags &= ~TERMP_NOBREAK;
                    917:                        else
                    918:                                p->flags |= TERMP_NOBREAK;
1.86      kristaps  919:                        if (n->prev)
1.1       kristaps  920:                                p->flags |= TERMP_NOLPAD;
                    921:                }
                    922:                break;
                    923:        case (MDOC_Diag):
1.86      kristaps  924:                if (MDOC_HEAD == n->type)
1.1       kristaps  925:                        p->flags |= TERMP_NOBREAK;
                    926:                break;
                    927:        default:
                    928:                break;
                    929:        }
                    930:
                    931:        /*
                    932:         * Margin control.  Set-head-width lists have their right
                    933:         * margins shortened.  The body for these lists has the offset
                    934:         * necessarily lengthened.  Everybody gets the offset.
                    935:         */
                    936:
                    937:        p->offset += offset;
                    938:
                    939:        switch (type) {
1.59      kristaps  940:        case (MDOC_Hang):
                    941:                /*
                    942:                 * Same stipulation as above, regarding `-hang'.  We
                    943:                 * don't want to recalculate rmargin and offsets when
                    944:                 * using `Bd' or `Bl' within `-hang' overstep lists.
                    945:                 */
1.86      kristaps  946:                if (MDOC_HEAD == n->type && n->next->child &&
                    947:                                (MDOC_Bl == n->next->child->tok ||
                    948:                                 MDOC_Bd == n->next->child->tok))
1.59      kristaps  949:                        break;
                    950:                /* FALLTHROUGH */
1.1       kristaps  951:        case (MDOC_Bullet):
                    952:                /* FALLTHROUGH */
                    953:        case (MDOC_Dash):
                    954:                /* FALLTHROUGH */
                    955:        case (MDOC_Enum):
                    956:                /* FALLTHROUGH */
                    957:        case (MDOC_Hyphen):
                    958:                /* FALLTHROUGH */
                    959:        case (MDOC_Tag):
1.49      kristaps  960:                assert(width);
1.86      kristaps  961:                if (MDOC_HEAD == n->type)
1.1       kristaps  962:                        p->rmargin = p->offset + width;
                    963:                else
                    964:                        p->offset += width;
                    965:                break;
                    966:        case (MDOC_Column):
1.49      kristaps  967:                assert(width);
1.1       kristaps  968:                p->rmargin = p->offset + width;
1.50      kristaps  969:                /*
                    970:                 * XXX - this behaviour is not documented: the
                    971:                 * right-most column is filled to the right margin.
                    972:                 */
1.86      kristaps  973:                if (MDOC_HEAD == n->type &&
1.105     kristaps  974:                                MDOC_BODY == n->next->type &&
                    975:                                p->rmargin < p->maxrmargin)
1.50      kristaps  976:                        p->rmargin = p->maxrmargin;
1.1       kristaps  977:                break;
                    978:        default:
                    979:                break;
                    980:        }
                    981:
                    982:        /*
                    983:         * The dash, hyphen, bullet and enum lists all have a special
1.15      kristaps  984:         * HEAD character (temporarily bold, in some cases).
1.1       kristaps  985:         */
                    986:
1.86      kristaps  987:        if (MDOC_HEAD == n->type)
1.1       kristaps  988:                switch (type) {
                    989:                case (MDOC_Bullet):
1.102     kristaps  990:                        term_fontpush(p, TERMFONT_BOLD);
1.1       kristaps  991:                        term_word(p, "\\[bu]");
1.102     kristaps  992:                        term_fontpop(p);
1.1       kristaps  993:                        break;
                    994:                case (MDOC_Dash):
                    995:                        /* FALLTHROUGH */
                    996:                case (MDOC_Hyphen):
1.102     kristaps  997:                        term_fontpush(p, TERMFONT_BOLD);
1.27      kristaps  998:                        term_word(p, "\\(hy");
1.102     kristaps  999:                        term_fontpop(p);
1.1       kristaps 1000:                        break;
                   1001:                case (MDOC_Enum):
                   1002:                        (pair->ppair->ppair->count)++;
1.109     kristaps 1003:                        snprintf(buf, sizeof(buf), "%d.",
1.1       kristaps 1004:                                        pair->ppair->ppair->count);
                   1005:                        term_word(p, buf);
                   1006:                        break;
                   1007:                default:
                   1008:                        break;
                   1009:                }
                   1010:
                   1011:        /*
                   1012:         * If we're not going to process our children, indicate so here.
                   1013:         */
                   1014:
                   1015:        switch (type) {
                   1016:        case (MDOC_Bullet):
                   1017:                /* FALLTHROUGH */
                   1018:        case (MDOC_Item):
                   1019:                /* FALLTHROUGH */
                   1020:        case (MDOC_Dash):
                   1021:                /* FALLTHROUGH */
                   1022:        case (MDOC_Hyphen):
                   1023:                /* FALLTHROUGH */
                   1024:        case (MDOC_Enum):
1.86      kristaps 1025:                if (MDOC_HEAD == n->type)
1.1       kristaps 1026:                        return(0);
                   1027:                break;
                   1028:        case (MDOC_Column):
1.86      kristaps 1029:                if (MDOC_BODY == n->type)
1.1       kristaps 1030:                        return(0);
                   1031:                break;
                   1032:        default:
                   1033:                break;
                   1034:        }
                   1035:
                   1036:        return(1);
                   1037: }
                   1038:
                   1039:
                   1040: /* ARGSUSED */
                   1041: static void
                   1042: termp_it_post(DECL_ARGS)
                   1043: {
                   1044:        int                type;
                   1045:
1.109     kristaps 1046:        if (MDOC_BLOCK == n->type)
1.1       kristaps 1047:                return;
                   1048:
1.86      kristaps 1049:        type = arg_listtype(n->parent->parent->parent);
1.38      kristaps 1050:        assert(-1 != type);
1.1       kristaps 1051:
                   1052:        switch (type) {
                   1053:        case (MDOC_Item):
                   1054:                /* FALLTHROUGH */
1.53      kristaps 1055:        case (MDOC_Diag):
                   1056:                /* FALLTHROUGH */
1.1       kristaps 1057:        case (MDOC_Inset):
1.86      kristaps 1058:                if (MDOC_BODY == n->type)
1.1       kristaps 1059:                        term_flushln(p);
                   1060:                break;
                   1061:        case (MDOC_Column):
1.86      kristaps 1062:                if (MDOC_HEAD == n->type)
1.1       kristaps 1063:                        term_flushln(p);
                   1064:                break;
                   1065:        default:
                   1066:                term_flushln(p);
                   1067:                break;
                   1068:        }
                   1069:
1.109     kristaps 1070:        /*
                   1071:         * Now that our output is flushed, we can reset our tags.  Since
                   1072:         * only `It' sets these flags, we're free to assume that nobody
                   1073:         * has munged them in the meanwhile.
                   1074:         */
                   1075:
                   1076:        p->flags &= ~TERMP_DANGLE;
                   1077:        p->flags &= ~TERMP_NOBREAK;
                   1078:        p->flags &= ~TERMP_TWOSPACE;
                   1079:        p->flags &= ~TERMP_NOLPAD;
                   1080:        p->flags &= ~TERMP_HANG;
1.1       kristaps 1081: }
                   1082:
                   1083:
                   1084: /* ARGSUSED */
                   1085: static int
                   1086: termp_nm_pre(DECL_ARGS)
                   1087: {
                   1088:
1.125   ! kristaps 1089:        if (NULL == n->child && NULL == m->name)
        !          1090:
1.122     kristaps 1091:        if (SEC_SYNOPSIS == n->sec && MDOC_LINE & n->flags)
1.1       kristaps 1092:                term_newln(p);
1.102     kristaps 1093:
                   1094:        term_fontpush(p, TERMFONT_BOLD);
                   1095:
1.86      kristaps 1096:        if (NULL == n->child)
                   1097:                term_word(p, m->name);
1.125   ! kristaps 1098:
1.1       kristaps 1099:        return(1);
                   1100: }
                   1101:
                   1102:
                   1103: /* ARGSUSED */
                   1104: static int
                   1105: termp_fl_pre(DECL_ARGS)
                   1106: {
                   1107:
1.102     kristaps 1108:        term_fontpush(p, TERMFONT_BOLD);
1.1       kristaps 1109:        term_word(p, "\\-");
1.103     kristaps 1110:
                   1111:        if (n->child)
1.114     kristaps 1112:                p->flags |= TERMP_NOSPACE;
                   1113:        else if (n->next && n->next->line == n->line)
1.103     kristaps 1114:                p->flags |= TERMP_NOSPACE;
                   1115:
1.1       kristaps 1116:        return(1);
                   1117: }
                   1118:
                   1119:
                   1120: /* ARGSUSED */
                   1121: static int
1.61      kristaps 1122: termp_an_pre(DECL_ARGS)
                   1123: {
                   1124:
1.86      kristaps 1125:        if (NULL == n->child)
1.61      kristaps 1126:                return(1);
                   1127:
                   1128:        /*
1.85      kristaps 1129:         * If not in the AUTHORS section, `An -split' will cause
                   1130:         * newlines to occur before the author name.  If in the AUTHORS
                   1131:         * section, by default, the first `An' invocation is nosplit,
                   1132:         * then all subsequent ones, regardless of whether interspersed
                   1133:         * with other macros/text, are split.  -split, in this case,
                   1134:         * will override the condition of the implied first -nosplit.
1.61      kristaps 1135:         */
                   1136:
1.86      kristaps 1137:        if (n->sec == SEC_AUTHORS) {
1.61      kristaps 1138:                if ( ! (TERMP_ANPREC & p->flags)) {
                   1139:                        if (TERMP_SPLIT & p->flags)
                   1140:                                term_newln(p);
                   1141:                        return(1);
                   1142:                }
                   1143:                if (TERMP_NOSPLIT & p->flags)
                   1144:                        return(1);
                   1145:                term_newln(p);
                   1146:                return(1);
                   1147:        }
                   1148:
                   1149:        if (TERMP_SPLIT & p->flags)
                   1150:                term_newln(p);
                   1151:
                   1152:        return(1);
                   1153: }
                   1154:
                   1155:
                   1156: /* ARGSUSED */
                   1157: static void
                   1158: termp_an_post(DECL_ARGS)
                   1159: {
                   1160:
1.86      kristaps 1161:        if (n->child) {
                   1162:                if (SEC_AUTHORS == n->sec)
1.61      kristaps 1163:                        p->flags |= TERMP_ANPREC;
                   1164:                return;
                   1165:        }
                   1166:
1.118     kristaps 1167:        if (arg_hasattr(MDOC_Split, n)) {
1.61      kristaps 1168:                p->flags &= ~TERMP_NOSPLIT;
                   1169:                p->flags |= TERMP_SPLIT;
                   1170:        } else {
                   1171:                p->flags &= ~TERMP_SPLIT;
                   1172:                p->flags |= TERMP_NOSPLIT;
                   1173:        }
                   1174:
                   1175: }
                   1176:
                   1177:
                   1178: /* ARGSUSED */
                   1179: static int
1.1       kristaps 1180: termp_ns_pre(DECL_ARGS)
                   1181: {
                   1182:
                   1183:        p->flags |= TERMP_NOSPACE;
                   1184:        return(1);
                   1185: }
                   1186:
                   1187:
                   1188: /* ARGSUSED */
                   1189: static int
                   1190: termp_rs_pre(DECL_ARGS)
                   1191: {
                   1192:
1.86      kristaps 1193:        if (SEC_SEE_ALSO != n->sec)
1.80      kristaps 1194:                return(1);
1.86      kristaps 1195:        if (MDOC_BLOCK == n->type && n->prev)
1.1       kristaps 1196:                term_vspace(p);
                   1197:        return(1);
                   1198: }
                   1199:
                   1200:
                   1201: /* ARGSUSED */
                   1202: static int
                   1203: termp_rv_pre(DECL_ARGS)
                   1204: {
1.68      kristaps 1205:        const struct mdoc_node  *nn;
1.1       kristaps 1206:
                   1207:        term_newln(p);
                   1208:        term_word(p, "The");
                   1209:
1.86      kristaps 1210:        for (nn = n->child; nn; nn = nn->next) {
1.102     kristaps 1211:                term_fontpush(p, TERMFONT_BOLD);
1.68      kristaps 1212:                term_word(p, nn->string);
1.102     kristaps 1213:                term_fontpop(p);
1.68      kristaps 1214:                p->flags |= TERMP_NOSPACE;
                   1215:                if (nn->next && NULL == nn->next->next)
                   1216:                        term_word(p, "(), and");
                   1217:                else if (nn->next)
                   1218:                        term_word(p, "(),");
                   1219:                else
                   1220:                        term_word(p, "()");
                   1221:        }
                   1222:
1.125   ! kristaps 1223:        if (n->child && n->child->next)
1.68      kristaps 1224:                term_word(p, "functions return");
                   1225:        else
                   1226:                term_word(p, "function returns");
1.1       kristaps 1227:
1.68      kristaps 1228:                term_word(p, "the value 0 if successful; otherwise the value "
                   1229:                        "-1 is returned and the global variable");
1.1       kristaps 1230:
1.102     kristaps 1231:        term_fontpush(p, TERMFONT_UNDER);
1.1       kristaps 1232:        term_word(p, "errno");
1.102     kristaps 1233:        term_fontpop(p);
1.1       kristaps 1234:
                   1235:                term_word(p, "is set to indicate the error.");
                   1236:
1.68      kristaps 1237:        return(0);
1.1       kristaps 1238: }
                   1239:
                   1240:
                   1241: /* ARGSUSED */
                   1242: static int
                   1243: termp_ex_pre(DECL_ARGS)
                   1244: {
1.68      kristaps 1245:        const struct mdoc_node  *nn;
1.1       kristaps 1246:
1.68      kristaps 1247:        term_word(p, "The");
1.1       kristaps 1248:
1.86      kristaps 1249:        for (nn = n->child; nn; nn = nn->next) {
1.102     kristaps 1250:                term_fontpush(p, TERMFONT_BOLD);
1.68      kristaps 1251:                term_word(p, nn->string);
1.102     kristaps 1252:                term_fontpop(p);
1.68      kristaps 1253:                p->flags |= TERMP_NOSPACE;
                   1254:                if (nn->next && NULL == nn->next->next)
                   1255:                        term_word(p, ", and");
                   1256:                else if (nn->next)
                   1257:                        term_word(p, ",");
                   1258:                else
                   1259:                        p->flags &= ~TERMP_NOSPACE;
                   1260:        }
                   1261:
1.125   ! kristaps 1262:        if (n->child && n->child->next)
1.68      kristaps 1263:                term_word(p, "utilities exit");
                   1264:        else
                   1265:                term_word(p, "utility exits");
                   1266:
                   1267:                term_word(p, "0 on success, and >0 if an error occurs.");
1.1       kristaps 1268:
1.68      kristaps 1269:        return(0);
1.1       kristaps 1270: }
                   1271:
                   1272:
                   1273: /* ARGSUSED */
                   1274: static int
                   1275: termp_nd_pre(DECL_ARGS)
                   1276: {
1.25      kristaps 1277:
1.86      kristaps 1278:        if (MDOC_BODY != n->type)
1.25      kristaps 1279:                return(1);
1.30      kristaps 1280:
1.27      kristaps 1281: #if defined(__OpenBSD__) || defined(__linux__)
1.41      kristaps 1282:        term_word(p, "\\(en");
1.23      kristaps 1283: #else
                   1284:        term_word(p, "\\(em");
                   1285: #endif
1.1       kristaps 1286:        return(1);
1.115     kristaps 1287: }
                   1288:
                   1289:
                   1290: /* ARGSUSED */
                   1291: static int
                   1292: termp_bl_pre(DECL_ARGS)
                   1293: {
                   1294:
                   1295:        return(MDOC_HEAD != n->type);
1.1       kristaps 1296: }
                   1297:
                   1298:
                   1299: /* ARGSUSED */
                   1300: static void
                   1301: termp_bl_post(DECL_ARGS)
                   1302: {
                   1303:
1.86      kristaps 1304:        if (MDOC_BLOCK == n->type)
1.1       kristaps 1305:                term_newln(p);
                   1306: }
                   1307:
                   1308:
                   1309: /* ARGSUSED */
                   1310: static void
                   1311: termp_op_post(DECL_ARGS)
                   1312: {
                   1313:
1.86      kristaps 1314:        if (MDOC_BODY != n->type)
1.1       kristaps 1315:                return;
                   1316:        p->flags |= TERMP_NOSPACE;
                   1317:        term_word(p, "\\(rB");
                   1318: }
                   1319:
                   1320:
                   1321: /* ARGSUSED */
                   1322: static int
                   1323: termp_xr_pre(DECL_ARGS)
                   1324: {
1.86      kristaps 1325:        const struct mdoc_node *nn;
1.1       kristaps 1326:
1.113     kristaps 1327:        if (NULL == n->child)
                   1328:                return(0);
                   1329:
                   1330:        assert(MDOC_TEXT == n->child->type);
1.86      kristaps 1331:        nn = n->child;
1.11      kristaps 1332:
1.86      kristaps 1333:        term_word(p, nn->string);
                   1334:        if (NULL == (nn = nn->next))
1.1       kristaps 1335:                return(0);
                   1336:        p->flags |= TERMP_NOSPACE;
                   1337:        term_word(p, "(");
                   1338:        p->flags |= TERMP_NOSPACE;
1.86      kristaps 1339:        term_word(p, nn->string);
1.1       kristaps 1340:        p->flags |= TERMP_NOSPACE;
                   1341:        term_word(p, ")");
1.86      kristaps 1342:
1.1       kristaps 1343:        return(0);
                   1344: }
                   1345:
                   1346:
1.110     kristaps 1347: static int
                   1348: termp_vt_pre(DECL_ARGS)
                   1349: {
                   1350:
                   1351:        if (MDOC_ELEM == n->type)
                   1352:                return(termp_under_pre(p, pair, m, n));
                   1353:        else if (MDOC_HEAD == n->type)
                   1354:                return(0);
                   1355:        else if (MDOC_BLOCK == n->type)
                   1356:                return(1);
                   1357:
                   1358:        return(termp_under_pre(p, pair, m, n));
                   1359: }
                   1360:
                   1361:
1.1       kristaps 1362: /* ARGSUSED */
                   1363: static void
                   1364: termp_vt_post(DECL_ARGS)
                   1365: {
                   1366:
1.110     kristaps 1367:        if (MDOC_BLOCK != n->type)
1.32      kristaps 1368:                return;
1.86      kristaps 1369:        if (n->next && MDOC_Vt == n->next->tok)
1.32      kristaps 1370:                term_newln(p);
1.86      kristaps 1371:        else if (n->next)
1.1       kristaps 1372:                term_vspace(p);
                   1373: }
                   1374:
                   1375:
                   1376: /* ARGSUSED */
                   1377: static int
1.69      kristaps 1378: termp_bold_pre(DECL_ARGS)
1.1       kristaps 1379: {
                   1380:
1.102     kristaps 1381:        term_fontpush(p, TERMFONT_BOLD);
1.1       kristaps 1382:        return(1);
                   1383: }
                   1384:
                   1385:
                   1386: /* ARGSUSED */
                   1387: static void
                   1388: termp_fd_post(DECL_ARGS)
                   1389: {
                   1390:
1.122     kristaps 1391:        if (n->sec != SEC_SYNOPSIS || ! (MDOC_LINE & n->flags))
1.1       kristaps 1392:                return;
1.29      kristaps 1393:
1.1       kristaps 1394:        term_newln(p);
1.86      kristaps 1395:        if (n->next && MDOC_Fd != n->next->tok)
1.1       kristaps 1396:                term_vspace(p);
                   1397: }
                   1398:
                   1399:
                   1400: /* ARGSUSED */
                   1401: static int
                   1402: termp_sh_pre(DECL_ARGS)
                   1403: {
1.85      kristaps 1404:
                   1405:        /* No vspace between consecutive `Sh' calls. */
                   1406:
1.86      kristaps 1407:        switch (n->type) {
1.65      kristaps 1408:        case (MDOC_BLOCK):
1.86      kristaps 1409:                if (n->prev && MDOC_Sh == n->prev->tok)
                   1410:                        if (NULL == n->prev->body->child)
1.65      kristaps 1411:                                break;
                   1412:                term_vspace(p);
                   1413:                break;
1.1       kristaps 1414:        case (MDOC_HEAD):
1.102     kristaps 1415:                term_fontpush(p, TERMFONT_BOLD);
1.1       kristaps 1416:                break;
                   1417:        case (MDOC_BODY):
                   1418:                p->offset = INDENT;
                   1419:                break;
                   1420:        default:
                   1421:                break;
                   1422:        }
                   1423:        return(1);
                   1424: }
                   1425:
                   1426:
                   1427: /* ARGSUSED */
                   1428: static void
                   1429: termp_sh_post(DECL_ARGS)
                   1430: {
                   1431:
1.86      kristaps 1432:        switch (n->type) {
1.1       kristaps 1433:        case (MDOC_HEAD):
                   1434:                term_newln(p);
                   1435:                break;
                   1436:        case (MDOC_BODY):
                   1437:                term_newln(p);
                   1438:                p->offset = 0;
                   1439:                break;
                   1440:        default:
                   1441:                break;
                   1442:        }
                   1443: }
                   1444:
                   1445:
                   1446: /* ARGSUSED */
                   1447: static int
                   1448: termp_op_pre(DECL_ARGS)
                   1449: {
                   1450:
1.86      kristaps 1451:        switch (n->type) {
1.1       kristaps 1452:        case (MDOC_BODY):
                   1453:                term_word(p, "\\(lB");
                   1454:                p->flags |= TERMP_NOSPACE;
                   1455:                break;
                   1456:        default:
                   1457:                break;
                   1458:        }
                   1459:        return(1);
                   1460: }
                   1461:
                   1462:
                   1463: /* ARGSUSED */
                   1464: static int
                   1465: termp_bt_pre(DECL_ARGS)
                   1466: {
                   1467:
                   1468:        term_word(p, "is currently in beta test.");
1.81      kristaps 1469:        return(0);
1.1       kristaps 1470: }
                   1471:
                   1472:
                   1473: /* ARGSUSED */
                   1474: static void
                   1475: termp_lb_post(DECL_ARGS)
                   1476: {
                   1477:
1.122     kristaps 1478:        if (SEC_LIBRARY == n->sec && MDOC_LINE & n->flags)
1.81      kristaps 1479:                term_newln(p);
1.1       kristaps 1480: }
                   1481:
                   1482:
                   1483: /* ARGSUSED */
                   1484: static int
                   1485: termp_ud_pre(DECL_ARGS)
                   1486: {
                   1487:
                   1488:        term_word(p, "currently under development.");
1.86      kristaps 1489:        return(0);
1.1       kristaps 1490: }
                   1491:
                   1492:
                   1493: /* ARGSUSED */
                   1494: static int
                   1495: termp_d1_pre(DECL_ARGS)
                   1496: {
                   1497:
1.86      kristaps 1498:        if (MDOC_BLOCK != n->type)
1.1       kristaps 1499:                return(1);
                   1500:        term_newln(p);
1.29      kristaps 1501:        p->offset += (INDENT + 1);
1.1       kristaps 1502:        return(1);
                   1503: }
                   1504:
                   1505:
                   1506: /* ARGSUSED */
                   1507: static void
                   1508: termp_d1_post(DECL_ARGS)
                   1509: {
                   1510:
1.86      kristaps 1511:        if (MDOC_BLOCK != n->type)
1.1       kristaps 1512:                return;
                   1513:        term_newln(p);
                   1514: }
                   1515:
                   1516:
                   1517: /* ARGSUSED */
                   1518: static int
                   1519: termp_aq_pre(DECL_ARGS)
                   1520: {
                   1521:
1.86      kristaps 1522:        if (MDOC_BODY != n->type)
1.1       kristaps 1523:                return(1);
                   1524:        term_word(p, "\\(la");
                   1525:        p->flags |= TERMP_NOSPACE;
                   1526:        return(1);
                   1527: }
                   1528:
                   1529:
                   1530: /* ARGSUSED */
                   1531: static void
                   1532: termp_aq_post(DECL_ARGS)
                   1533: {
                   1534:
1.86      kristaps 1535:        if (MDOC_BODY != n->type)
1.1       kristaps 1536:                return;
                   1537:        p->flags |= TERMP_NOSPACE;
                   1538:        term_word(p, "\\(ra");
                   1539: }
                   1540:
                   1541:
                   1542: /* ARGSUSED */
                   1543: static int
                   1544: termp_ft_pre(DECL_ARGS)
                   1545: {
                   1546:
1.122     kristaps 1547:        if (SEC_SYNOPSIS == n->sec && MDOC_LINE & n->flags)
1.86      kristaps 1548:                if (n->prev && MDOC_Fo == n->prev->tok)
1.1       kristaps 1549:                        term_vspace(p);
1.102     kristaps 1550:
                   1551:        term_fontpush(p, TERMFONT_UNDER);
1.1       kristaps 1552:        return(1);
                   1553: }
                   1554:
                   1555:
                   1556: /* ARGSUSED */
                   1557: static void
                   1558: termp_ft_post(DECL_ARGS)
                   1559: {
                   1560:
1.122     kristaps 1561:        if (SEC_SYNOPSIS == n->sec && MDOC_LINE & n->flags)
1.1       kristaps 1562:                term_newln(p);
                   1563: }
                   1564:
                   1565:
                   1566: /* ARGSUSED */
                   1567: static int
                   1568: termp_fn_pre(DECL_ARGS)
                   1569: {
1.86      kristaps 1570:        const struct mdoc_node  *nn;
1.1       kristaps 1571:
1.102     kristaps 1572:        term_fontpush(p, TERMFONT_BOLD);
1.86      kristaps 1573:        term_word(p, n->child->string);
1.102     kristaps 1574:        term_fontpop(p);
1.1       kristaps 1575:
                   1576:        p->flags |= TERMP_NOSPACE;
                   1577:        term_word(p, "(");
                   1578:
1.86      kristaps 1579:        for (nn = n->child->next; nn; nn = nn->next) {
1.102     kristaps 1580:                term_fontpush(p, TERMFONT_UNDER);
1.86      kristaps 1581:                term_word(p, nn->string);
1.102     kristaps 1582:                term_fontpop(p);
                   1583:
1.86      kristaps 1584:                if (nn->next)
1.1       kristaps 1585:                        term_word(p, ",");
                   1586:        }
                   1587:
                   1588:        term_word(p, ")");
                   1589:
1.86      kristaps 1590:        if (SEC_SYNOPSIS == n->sec)
1.1       kristaps 1591:                term_word(p, ";");
                   1592:
                   1593:        return(0);
                   1594: }
                   1595:
                   1596:
                   1597: /* ARGSUSED */
                   1598: static void
                   1599: termp_fn_post(DECL_ARGS)
                   1600: {
                   1601:
1.122     kristaps 1602:        if (n->sec == SEC_SYNOPSIS && n->next && MDOC_LINE & n->flags)
1.1       kristaps 1603:                term_vspace(p);
                   1604: }
                   1605:
                   1606:
                   1607: /* ARGSUSED */
                   1608: static int
                   1609: termp_fa_pre(DECL_ARGS)
                   1610: {
1.86      kristaps 1611:        const struct mdoc_node  *nn;
1.1       kristaps 1612:
1.86      kristaps 1613:        if (n->parent->tok != MDOC_Fo) {
1.102     kristaps 1614:                term_fontpush(p, TERMFONT_UNDER);
1.1       kristaps 1615:                return(1);
                   1616:        }
                   1617:
1.86      kristaps 1618:        for (nn = n->child; nn; nn = nn->next) {
1.102     kristaps 1619:                term_fontpush(p, TERMFONT_UNDER);
1.86      kristaps 1620:                term_word(p, nn->string);
1.102     kristaps 1621:                term_fontpop(p);
                   1622:
1.86      kristaps 1623:                if (nn->next)
1.1       kristaps 1624:                        term_word(p, ",");
                   1625:        }
                   1626:
1.86      kristaps 1627:        if (n->child && n->next && n->next->tok == MDOC_Fa)
1.1       kristaps 1628:                term_word(p, ",");
                   1629:
                   1630:        return(0);
                   1631: }
                   1632:
                   1633:
                   1634: /* ARGSUSED */
                   1635: static int
                   1636: termp_bd_pre(DECL_ARGS)
                   1637: {
1.85      kristaps 1638:        int                      i, type;
1.119     kristaps 1639:        size_t                   rm, rmax;
1.85      kristaps 1640:        const struct mdoc_node  *nn;
1.1       kristaps 1641:
1.86      kristaps 1642:        if (MDOC_BLOCK == n->type) {
1.91      kristaps 1643:                print_bvspace(p, n, n);
1.54      kristaps 1644:                return(1);
1.116     kristaps 1645:        } else if (MDOC_HEAD == n->type)
                   1646:                return(0);
1.1       kristaps 1647:
1.86      kristaps 1648:        nn = n->parent;
1.11      kristaps 1649:
1.118     kristaps 1650:        type = arg_disptype(nn);
                   1651:        assert(-1 != type);
                   1652:
                   1653:        if (-1 != (i = arg_getattr(MDOC_Offset, nn)))
                   1654:                p->offset += a2offs(&nn->args->argv[i]);
1.85      kristaps 1655:
                   1656:        /*
                   1657:         * If -ragged or -filled are specified, the block does nothing
                   1658:         * but change the indentation.  If -unfilled or -literal are
                   1659:         * specified, text is printed exactly as entered in the display:
                   1660:         * for macro lines, a newline is appended to the line.  Blank
                   1661:         * lines are allowed.
                   1662:         */
1.60      kristaps 1663:
1.85      kristaps 1664:        if (MDOC_Literal != type && MDOC_Unfilled != type)
1.1       kristaps 1665:                return(1);
                   1666:
1.119     kristaps 1667:        rm = p->rmargin;
                   1668:        rmax = p->maxrmargin;
1.120     kristaps 1669:        p->rmargin = p->maxrmargin = TERM_MAXMARGIN;
1.118     kristaps 1670:
1.86      kristaps 1671:        for (nn = n->child; nn; nn = nn->next) {
1.87      kristaps 1672:                p->flags |= TERMP_NOSPACE;
1.102     kristaps 1673:                print_mdoc_node(p, pair, m, nn);
1.85      kristaps 1674:                if (NULL == nn->next)
                   1675:                        continue;
                   1676:                if (nn->prev && nn->prev->line < nn->line)
1.1       kristaps 1677:                        term_flushln(p);
1.87      kristaps 1678:                else if (NULL == nn->prev)
                   1679:                        term_flushln(p);
1.1       kristaps 1680:        }
                   1681:
1.119     kristaps 1682:        p->rmargin = rm;
                   1683:        p->maxrmargin = rmax;
1.1       kristaps 1684:        return(0);
                   1685: }
                   1686:
                   1687:
                   1688: /* ARGSUSED */
                   1689: static void
                   1690: termp_bd_post(DECL_ARGS)
                   1691: {
1.118     kristaps 1692:        int              type;
1.119     kristaps 1693:        size_t           rm, rmax;
1.1       kristaps 1694:
1.86      kristaps 1695:        if (MDOC_BODY != n->type)
1.1       kristaps 1696:                return;
1.118     kristaps 1697:
                   1698:        type = arg_disptype(n->parent);
                   1699:        assert(-1 != type);
                   1700:
1.119     kristaps 1701:        rm = p->rmargin;
                   1702:        rmax = p->maxrmargin;
1.118     kristaps 1703:
                   1704:        if (MDOC_Literal == type || MDOC_Unfilled == type)
1.120     kristaps 1705:                p->rmargin = p->maxrmargin = TERM_MAXMARGIN;
1.118     kristaps 1706:
1.60      kristaps 1707:        p->flags |= TERMP_NOSPACE;
1.1       kristaps 1708:        term_flushln(p);
1.118     kristaps 1709:
1.119     kristaps 1710:        p->rmargin = rm;
                   1711:        p->maxrmargin = rmax;
1.1       kristaps 1712: }
                   1713:
                   1714:
                   1715: /* ARGSUSED */
                   1716: static int
                   1717: termp_qq_pre(DECL_ARGS)
                   1718: {
                   1719:
1.86      kristaps 1720:        if (MDOC_BODY != n->type)
1.1       kristaps 1721:                return(1);
                   1722:        term_word(p, "\"");
                   1723:        p->flags |= TERMP_NOSPACE;
                   1724:        return(1);
                   1725: }
                   1726:
                   1727:
                   1728: /* ARGSUSED */
                   1729: static void
                   1730: termp_qq_post(DECL_ARGS)
                   1731: {
                   1732:
1.86      kristaps 1733:        if (MDOC_BODY != n->type)
1.1       kristaps 1734:                return;
                   1735:        p->flags |= TERMP_NOSPACE;
                   1736:        term_word(p, "\"");
                   1737: }
                   1738:
                   1739:
                   1740: /* ARGSUSED */
                   1741: static void
                   1742: termp_bx_post(DECL_ARGS)
                   1743: {
                   1744:
1.86      kristaps 1745:        if (n->child)
1.1       kristaps 1746:                p->flags |= TERMP_NOSPACE;
                   1747:        term_word(p, "BSD");
                   1748: }
                   1749:
                   1750:
                   1751: /* ARGSUSED */
                   1752: static int
1.26      kristaps 1753: termp_xx_pre(DECL_ARGS)
1.1       kristaps 1754: {
1.26      kristaps 1755:        const char      *pp;
1.1       kristaps 1756:
1.26      kristaps 1757:        pp = NULL;
1.86      kristaps 1758:        switch (n->tok) {
1.26      kristaps 1759:        case (MDOC_Bsx):
                   1760:                pp = "BSDI BSD/OS";
                   1761:                break;
                   1762:        case (MDOC_Dx):
1.100     kristaps 1763:                pp = "DragonFly";
1.26      kristaps 1764:                break;
                   1765:        case (MDOC_Fx):
                   1766:                pp = "FreeBSD";
                   1767:                break;
                   1768:        case (MDOC_Nx):
                   1769:                pp = "NetBSD";
                   1770:                break;
                   1771:        case (MDOC_Ox):
                   1772:                pp = "OpenBSD";
                   1773:                break;
                   1774:        case (MDOC_Ux):
                   1775:                pp = "UNIX";
                   1776:                break;
                   1777:        default:
                   1778:                break;
                   1779:        }
1.1       kristaps 1780:
1.26      kristaps 1781:        assert(pp);
                   1782:        term_word(p, pp);
1.1       kristaps 1783:        return(1);
                   1784: }
                   1785:
                   1786:
                   1787: /* ARGSUSED */
                   1788: static int
                   1789: termp_sq_pre(DECL_ARGS)
                   1790: {
                   1791:
1.86      kristaps 1792:        if (MDOC_BODY != n->type)
1.1       kristaps 1793:                return(1);
                   1794:        term_word(p, "\\(oq");
                   1795:        p->flags |= TERMP_NOSPACE;
                   1796:        return(1);
                   1797: }
                   1798:
                   1799:
                   1800: /* ARGSUSED */
                   1801: static void
                   1802: termp_sq_post(DECL_ARGS)
                   1803: {
                   1804:
1.86      kristaps 1805:        if (MDOC_BODY != n->type)
1.1       kristaps 1806:                return;
                   1807:        p->flags |= TERMP_NOSPACE;
                   1808:        term_word(p, "\\(aq");
                   1809: }
                   1810:
                   1811:
                   1812: /* ARGSUSED */
                   1813: static int
                   1814: termp_pf_pre(DECL_ARGS)
                   1815: {
                   1816:
                   1817:        p->flags |= TERMP_IGNDELIM;
                   1818:        return(1);
                   1819: }
                   1820:
                   1821:
                   1822: /* ARGSUSED */
                   1823: static void
                   1824: termp_pf_post(DECL_ARGS)
                   1825: {
                   1826:
                   1827:        p->flags &= ~TERMP_IGNDELIM;
                   1828:        p->flags |= TERMP_NOSPACE;
                   1829: }
                   1830:
                   1831:
                   1832: /* ARGSUSED */
                   1833: static int
                   1834: termp_ss_pre(DECL_ARGS)
                   1835: {
                   1836:
1.86      kristaps 1837:        switch (n->type) {
1.1       kristaps 1838:        case (MDOC_BLOCK):
                   1839:                term_newln(p);
1.86      kristaps 1840:                if (n->prev)
1.1       kristaps 1841:                        term_vspace(p);
                   1842:                break;
                   1843:        case (MDOC_HEAD):
1.102     kristaps 1844:                term_fontpush(p, TERMFONT_BOLD);
1.5       kristaps 1845:                p->offset = HALFINDENT;
1.1       kristaps 1846:                break;
                   1847:        default:
                   1848:                break;
                   1849:        }
                   1850:
                   1851:        return(1);
                   1852: }
                   1853:
                   1854:
                   1855: /* ARGSUSED */
                   1856: static void
                   1857: termp_ss_post(DECL_ARGS)
                   1858: {
                   1859:
1.86      kristaps 1860:        if (MDOC_HEAD == n->type)
1.1       kristaps 1861:                term_newln(p);
                   1862: }
                   1863:
                   1864:
                   1865: /* ARGSUSED */
                   1866: static int
                   1867: termp_cd_pre(DECL_ARGS)
                   1868: {
                   1869:
1.102     kristaps 1870:        term_fontpush(p, TERMFONT_BOLD);
1.1       kristaps 1871:        term_newln(p);
                   1872:        return(1);
                   1873: }
                   1874:
                   1875:
                   1876: /* ARGSUSED */
                   1877: static int
                   1878: termp_in_pre(DECL_ARGS)
                   1879: {
                   1880:
1.102     kristaps 1881:        term_fontpush(p, TERMFONT_BOLD);
1.86      kristaps 1882:        if (SEC_SYNOPSIS == n->sec)
1.22      kristaps 1883:                term_word(p, "#include");
                   1884:
1.1       kristaps 1885:        term_word(p, "<");
                   1886:        p->flags |= TERMP_NOSPACE;
                   1887:        return(1);
                   1888: }
                   1889:
                   1890:
                   1891: /* ARGSUSED */
                   1892: static void
                   1893: termp_in_post(DECL_ARGS)
                   1894: {
                   1895:
1.102     kristaps 1896:        term_fontpush(p, TERMFONT_BOLD);
1.79      kristaps 1897:        p->flags |= TERMP_NOSPACE;
1.1       kristaps 1898:        term_word(p, ">");
1.102     kristaps 1899:        term_fontpop(p);
1.1       kristaps 1900:
1.122     kristaps 1901:        if (SEC_SYNOPSIS != n->sec && ! (MDOC_LINE & n->flags))
1.1       kristaps 1902:                return;
1.22      kristaps 1903:
                   1904:        term_newln(p);
                   1905:        /*
                   1906:         * XXX Not entirely correct.  If `.In foo bar' is specified in
                   1907:         * the SYNOPSIS section, then it produces a single break after
                   1908:         * the <foo>; mandoc asserts a vertical space.  Since this
                   1909:         * construction is rarely used, I think it's fine.
                   1910:         */
1.86      kristaps 1911:        if (n->next && MDOC_In != n->next->tok)
1.1       kristaps 1912:                term_vspace(p);
                   1913: }
                   1914:
                   1915:
                   1916: /* ARGSUSED */
                   1917: static int
1.45      kristaps 1918: termp_sp_pre(DECL_ARGS)
                   1919: {
1.91      kristaps 1920:        size_t           i, len;
1.45      kristaps 1921:
1.86      kristaps 1922:        switch (n->tok) {
1.76      kristaps 1923:        case (MDOC_sp):
1.96      kristaps 1924:                len = n->child ? a2height(n->child) : 1;
1.76      kristaps 1925:                break;
                   1926:        case (MDOC_br):
                   1927:                len = 0;
                   1928:                break;
                   1929:        default:
                   1930:                len = 1;
                   1931:                break;
1.45      kristaps 1932:        }
                   1933:
                   1934:        if (0 == len)
                   1935:                term_newln(p);
                   1936:        for (i = 0; i < len; i++)
                   1937:                term_vspace(p);
                   1938:
                   1939:        return(0);
                   1940: }
                   1941:
                   1942:
                   1943: /* ARGSUSED */
                   1944: static int
1.1       kristaps 1945: termp_brq_pre(DECL_ARGS)
                   1946: {
                   1947:
1.86      kristaps 1948:        if (MDOC_BODY != n->type)
1.1       kristaps 1949:                return(1);
                   1950:        term_word(p, "\\(lC");
                   1951:        p->flags |= TERMP_NOSPACE;
                   1952:        return(1);
                   1953: }
                   1954:
                   1955:
                   1956: /* ARGSUSED */
                   1957: static void
                   1958: termp_brq_post(DECL_ARGS)
                   1959: {
                   1960:
1.86      kristaps 1961:        if (MDOC_BODY != n->type)
1.1       kristaps 1962:                return;
                   1963:        p->flags |= TERMP_NOSPACE;
                   1964:        term_word(p, "\\(rC");
                   1965: }
                   1966:
                   1967:
                   1968: /* ARGSUSED */
                   1969: static int
                   1970: termp_bq_pre(DECL_ARGS)
                   1971: {
                   1972:
1.86      kristaps 1973:        if (MDOC_BODY != n->type)
1.1       kristaps 1974:                return(1);
                   1975:        term_word(p, "\\(lB");
                   1976:        p->flags |= TERMP_NOSPACE;
                   1977:        return(1);
                   1978: }
                   1979:
                   1980:
                   1981: /* ARGSUSED */
                   1982: static void
                   1983: termp_bq_post(DECL_ARGS)
                   1984: {
                   1985:
1.86      kristaps 1986:        if (MDOC_BODY != n->type)
1.1       kristaps 1987:                return;
                   1988:        p->flags |= TERMP_NOSPACE;
                   1989:        term_word(p, "\\(rB");
                   1990: }
                   1991:
                   1992:
                   1993: /* ARGSUSED */
                   1994: static int
                   1995: termp_pq_pre(DECL_ARGS)
                   1996: {
                   1997:
1.86      kristaps 1998:        if (MDOC_BODY != n->type)
1.1       kristaps 1999:                return(1);
                   2000:        term_word(p, "\\&(");
                   2001:        p->flags |= TERMP_NOSPACE;
                   2002:        return(1);
                   2003: }
                   2004:
                   2005:
                   2006: /* ARGSUSED */
                   2007: static void
                   2008: termp_pq_post(DECL_ARGS)
                   2009: {
                   2010:
1.86      kristaps 2011:        if (MDOC_BODY != n->type)
1.1       kristaps 2012:                return;
                   2013:        term_word(p, ")");
                   2014: }
                   2015:
                   2016:
                   2017: /* ARGSUSED */
                   2018: static int
                   2019: termp_fo_pre(DECL_ARGS)
                   2020: {
1.86      kristaps 2021:        const struct mdoc_node *nn;
1.1       kristaps 2022:
1.86      kristaps 2023:        if (MDOC_BODY == n->type) {
1.33      kristaps 2024:                p->flags |= TERMP_NOSPACE;
1.1       kristaps 2025:                term_word(p, "(");
                   2026:                p->flags |= TERMP_NOSPACE;
                   2027:                return(1);
1.86      kristaps 2028:        } else if (MDOC_HEAD != n->type)
1.1       kristaps 2029:                return(1);
                   2030:
1.102     kristaps 2031:        term_fontpush(p, TERMFONT_BOLD);
1.86      kristaps 2032:        for (nn = n->child; nn; nn = nn->next) {
                   2033:                assert(MDOC_TEXT == nn->type);
                   2034:                term_word(p, nn->string);
1.1       kristaps 2035:        }
1.102     kristaps 2036:        term_fontpop(p);
1.1       kristaps 2037:
                   2038:        return(0);
                   2039: }
                   2040:
                   2041:
                   2042: /* ARGSUSED */
                   2043: static void
                   2044: termp_fo_post(DECL_ARGS)
                   2045: {
                   2046:
1.86      kristaps 2047:        if (MDOC_BODY != n->type)
1.1       kristaps 2048:                return;
                   2049:        p->flags |= TERMP_NOSPACE;
                   2050:        term_word(p, ")");
                   2051:        p->flags |= TERMP_NOSPACE;
                   2052:        term_word(p, ";");
                   2053:        term_newln(p);
                   2054: }
                   2055:
                   2056:
                   2057: /* ARGSUSED */
                   2058: static int
                   2059: termp_bf_pre(DECL_ARGS)
                   2060: {
1.86      kristaps 2061:        const struct mdoc_node  *nn;
1.1       kristaps 2062:
1.86      kristaps 2063:        if (MDOC_HEAD == n->type)
1.1       kristaps 2064:                return(0);
1.86      kristaps 2065:        else if (MDOC_BLOCK != n->type)
1.1       kristaps 2066:                return(1);
                   2067:
1.86      kristaps 2068:        if (NULL == (nn = n->head->child)) {
                   2069:                if (arg_hasattr(MDOC_Emphasis, n))
1.102     kristaps 2070:                        term_fontpush(p, TERMFONT_UNDER);
1.86      kristaps 2071:                else if (arg_hasattr(MDOC_Symbolic, n))
1.102     kristaps 2072:                        term_fontpush(p, TERMFONT_BOLD);
                   2073:                else
                   2074:                        term_fontpush(p, TERMFONT_NONE);
1.1       kristaps 2075:
                   2076:                return(1);
                   2077:        }
                   2078:
1.86      kristaps 2079:        assert(MDOC_TEXT == nn->type);
                   2080:        if (0 == strcmp("Em", nn->string))
1.102     kristaps 2081:                term_fontpush(p, TERMFONT_UNDER);
1.86      kristaps 2082:        else if (0 == strcmp("Sy", nn->string))
1.102     kristaps 2083:                term_fontpush(p, TERMFONT_BOLD);
                   2084:        else
                   2085:                term_fontpush(p, TERMFONT_NONE);
1.1       kristaps 2086:
                   2087:        return(1);
                   2088: }
                   2089:
                   2090:
                   2091: /* ARGSUSED */
                   2092: static int
                   2093: termp_sm_pre(DECL_ARGS)
                   2094: {
                   2095:
1.86      kristaps 2096:        assert(n->child && MDOC_TEXT == n->child->type);
1.109     kristaps 2097:        if (0 == strcmp("on", n->child->string))
1.1       kristaps 2098:                p->flags &= ~TERMP_NONOSPACE;
1.109     kristaps 2099:        else
1.1       kristaps 2100:                p->flags |= TERMP_NONOSPACE;
                   2101:
                   2102:        return(0);
                   2103: }
                   2104:
                   2105:
                   2106: /* ARGSUSED */
                   2107: static int
                   2108: termp_ap_pre(DECL_ARGS)
                   2109: {
                   2110:
                   2111:        p->flags |= TERMP_NOSPACE;
                   2112:        term_word(p, "\\(aq");
                   2113:        p->flags |= TERMP_NOSPACE;
                   2114:        return(1);
                   2115: }
                   2116:
                   2117:
                   2118: /* ARGSUSED */
                   2119: static void
                   2120: termp____post(DECL_ARGS)
                   2121: {
                   2122:
1.95      kristaps 2123:        /* TODO: %U. */
                   2124:
1.1       kristaps 2125:        p->flags |= TERMP_NOSPACE;
1.86      kristaps 2126:        term_word(p, n->next ? "," : ".");
1.1       kristaps 2127: }
                   2128:
                   2129:
                   2130: /* ARGSUSED */
                   2131: static int
1.102     kristaps 2132: termp_li_pre(DECL_ARGS)
                   2133: {
                   2134:
                   2135:        term_fontpush(p, TERMFONT_NONE);
                   2136:        return(1);
                   2137: }
                   2138:
                   2139:
                   2140: /* ARGSUSED */
                   2141: static int
1.1       kristaps 2142: termp_lk_pre(DECL_ARGS)
                   2143: {
1.86      kristaps 2144:        const struct mdoc_node *nn;
1.1       kristaps 2145:
1.102     kristaps 2146:        term_fontpush(p, TERMFONT_UNDER);
1.96      kristaps 2147:        nn = n->child;
                   2148:
                   2149:        if (NULL == nn->next)
1.12      kristaps 2150:                return(1);
                   2151:
1.86      kristaps 2152:        term_word(p, nn->string);
1.102     kristaps 2153:        term_fontpop(p);
1.96      kristaps 2154:
1.1       kristaps 2155:        p->flags |= TERMP_NOSPACE;
                   2156:        term_word(p, ":");
                   2157:
1.102     kristaps 2158:        term_fontpush(p, TERMFONT_BOLD);
1.86      kristaps 2159:        for (nn = nn->next; nn; nn = nn->next)
                   2160:                term_word(p, nn->string);
1.102     kristaps 2161:        term_fontpop(p);
1.12      kristaps 2162:
1.1       kristaps 2163:        return(0);
                   2164: }
                   2165:
                   2166:
                   2167: /* ARGSUSED */
                   2168: static int
1.69      kristaps 2169: termp_under_pre(DECL_ARGS)
1.1       kristaps 2170: {
                   2171:
1.102     kristaps 2172:        term_fontpush(p, TERMFONT_UNDER);
1.84      kristaps 2173:        return(1);
                   2174: }

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