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Annotation of mandoc/mdoc_term.c, Revision 1.275

1.275   ! schwarze    1: /*     $Id: mdoc_term.c,v 1.274 2014/07/30 17:06:26 schwarze Exp $ */
1.1       kristaps    2: /*
1.217     schwarze    3:  * Copyright (c) 2008, 2009, 2010, 2011 Kristaps Dzonsons <kristaps@bsd.lv>
1.259     schwarze    4:  * Copyright (c) 2010, 2012, 2013, 2014 Ingo Schwarze <schwarze@openbsd.org>
1.256     schwarze    5:  * Copyright (c) 2013 Franco Fichtner <franco@lastsummer.de>
1.1       kristaps    6:  *
                      7:  * Permission to use, copy, modify, and distribute this software for any
1.6       kristaps    8:  * purpose with or without fee is hereby granted, provided that the above
                      9:  * copyright notice and this permission notice appear in all copies.
1.1       kristaps   10:  *
1.6       kristaps   11:  * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
                     12:  * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
                     13:  * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
                     14:  * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
                     15:  * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
                     16:  * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
                     17:  * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
1.1       kristaps   18:  */
1.107     kristaps   19: #ifdef HAVE_CONFIG_H
                     20: #include "config.h"
                     21: #endif
                     22:
1.1       kristaps   23: #include <sys/types.h>
                     24:
                     25: #include <assert.h>
                     26: #include <ctype.h>
1.118     kristaps   27: #include <stdint.h>
1.1       kristaps   28: #include <stdio.h>
                     29: #include <stdlib.h>
                     30: #include <string.h>
                     31:
1.125     kristaps   32: #include "mandoc.h"
1.266     schwarze   33: #include "mandoc_aux.h"
1.92      kristaps   34: #include "out.h"
1.1       kristaps   35: #include "term.h"
                     36: #include "mdoc.h"
1.89      kristaps   37: #include "main.h"
1.1       kristaps   38:
                     39: struct termpair {
                     40:        struct termpair  *ppair;
1.31      kristaps   41:        int               count;
1.1       kristaps   42: };
                     43:
1.31      kristaps   44: #define        DECL_ARGS struct termp *p, \
                     45:                  struct termpair *pair, \
1.264     schwarze   46:                  const struct mdoc_meta *meta, \
1.244     schwarze   47:                  struct mdoc_node *n
1.1       kristaps   48:
                     49: struct termact {
                     50:        int     (*pre)(DECL_ARGS);
                     51:        void    (*post)(DECL_ARGS);
                     52: };
                     53:
1.157     kristaps   54: static size_t    a2width(const struct termp *, const char *);
                     55: static size_t    a2height(const struct termp *, const char *);
                     56: static size_t    a2offs(const struct termp *, const char *);
1.96      kristaps   57:
                     58: static void      print_bvspace(struct termp *,
1.151     kristaps   59:                        const struct mdoc_node *,
1.96      kristaps   60:                        const struct mdoc_node *);
1.264     schwarze   61: static void      print_mdoc_node(DECL_ARGS);
1.145     kristaps   62: static void      print_mdoc_nodelist(DECL_ARGS);
1.144     kristaps   63: static void      print_mdoc_head(struct termp *, const void *);
1.145     kristaps   64: static void      print_mdoc_foot(struct termp *, const void *);
1.264     schwarze   65: static void      synopsis_pre(struct termp *,
1.143     kristaps   66:                        const struct mdoc_node *);
1.96      kristaps   67:
1.31      kristaps   68: static void      termp____post(DECL_ARGS);
1.203     kristaps   69: static void      termp__t_post(DECL_ARGS);
1.61      kristaps   70: static void      termp_an_post(DECL_ARGS);
1.31      kristaps   71: static void      termp_bd_post(DECL_ARGS);
1.159     schwarze   72: static void      termp_bk_post(DECL_ARGS);
1.31      kristaps   73: static void      termp_bl_post(DECL_ARGS);
1.241     schwarze   74: static void      termp_fd_post(DECL_ARGS);
1.31      kristaps   75: static void      termp_fo_post(DECL_ARGS);
                     76: static void      termp_in_post(DECL_ARGS);
                     77: static void      termp_it_post(DECL_ARGS);
                     78: static void      termp_lb_post(DECL_ARGS);
1.164     schwarze   79: static void      termp_nm_post(DECL_ARGS);
1.31      kristaps   80: static void      termp_pf_post(DECL_ARGS);
1.188     kristaps   81: static void      termp_quote_post(DECL_ARGS);
1.31      kristaps   82: static void      termp_sh_post(DECL_ARGS);
                     83: static void      termp_ss_post(DECL_ARGS);
                     84:
1.184     kristaps   85: static int       termp__a_pre(DECL_ARGS);
1.203     kristaps   86: static int       termp__t_pre(DECL_ARGS);
1.61      kristaps   87: static int       termp_an_pre(DECL_ARGS);
1.31      kristaps   88: static int       termp_ap_pre(DECL_ARGS);
                     89: static int       termp_bd_pre(DECL_ARGS);
                     90: static int       termp_bf_pre(DECL_ARGS);
1.159     schwarze   91: static int       termp_bk_pre(DECL_ARGS);
1.115     kristaps   92: static int       termp_bl_pre(DECL_ARGS);
1.69      kristaps   93: static int       termp_bold_pre(DECL_ARGS);
1.31      kristaps   94: static int       termp_bt_pre(DECL_ARGS);
1.211     kristaps   95: static int       termp_bx_pre(DECL_ARGS);
1.31      kristaps   96: static int       termp_cd_pre(DECL_ARGS);
                     97: static int       termp_d1_pre(DECL_ARGS);
1.268     schwarze   98: static int       termp_es_pre(DECL_ARGS);
1.31      kristaps   99: static int       termp_ex_pre(DECL_ARGS);
                    100: static int       termp_fa_pre(DECL_ARGS);
1.188     kristaps  101: static int       termp_fd_pre(DECL_ARGS);
1.31      kristaps  102: static int       termp_fl_pre(DECL_ARGS);
                    103: static int       termp_fn_pre(DECL_ARGS);
                    104: static int       termp_fo_pre(DECL_ARGS);
                    105: static int       termp_ft_pre(DECL_ARGS);
                    106: static int       termp_in_pre(DECL_ARGS);
                    107: static int       termp_it_pre(DECL_ARGS);
1.102     kristaps  108: static int       termp_li_pre(DECL_ARGS);
1.260     schwarze  109: static int       termp_ll_pre(DECL_ARGS);
1.31      kristaps  110: static int       termp_lk_pre(DECL_ARGS);
                    111: static int       termp_nd_pre(DECL_ARGS);
                    112: static int       termp_nm_pre(DECL_ARGS);
                    113: static int       termp_ns_pre(DECL_ARGS);
1.188     kristaps  114: static int       termp_quote_pre(DECL_ARGS);
1.31      kristaps  115: static int       termp_rs_pre(DECL_ARGS);
                    116: static int       termp_rv_pre(DECL_ARGS);
                    117: static int       termp_sh_pre(DECL_ARGS);
                    118: static int       termp_sm_pre(DECL_ARGS);
1.45      kristaps  119: static int       termp_sp_pre(DECL_ARGS);
1.31      kristaps  120: static int       termp_ss_pre(DECL_ARGS);
1.69      kristaps  121: static int       termp_under_pre(DECL_ARGS);
1.31      kristaps  122: static int       termp_ud_pre(DECL_ARGS);
1.110     kristaps  123: static int       termp_vt_pre(DECL_ARGS);
1.31      kristaps  124: static int       termp_xr_pre(DECL_ARGS);
                    125: static int       termp_xx_pre(DECL_ARGS);
                    126:
1.70      kristaps  127: static const struct termact termacts[MDOC_MAX] = {
1.14      kristaps  128:        { termp_ap_pre, NULL }, /* Ap */
1.1       kristaps  129:        { NULL, NULL }, /* Dd */
                    130:        { NULL, NULL }, /* Dt */
                    131:        { NULL, NULL }, /* Os */
                    132:        { termp_sh_pre, termp_sh_post }, /* Sh */
1.264     schwarze  133:        { termp_ss_pre, termp_ss_post }, /* Ss */
                    134:        { termp_sp_pre, NULL }, /* Pp */
1.241     schwarze  135:        { termp_d1_pre, termp_bl_post }, /* D1 */
                    136:        { termp_d1_pre, termp_bl_post }, /* Dl */
1.1       kristaps  137:        { termp_bd_pre, termp_bd_post }, /* Bd */
                    138:        { NULL, NULL }, /* Ed */
1.115     kristaps  139:        { termp_bl_pre, termp_bl_post }, /* Bl */
1.1       kristaps  140:        { NULL, NULL }, /* El */
                    141:        { termp_it_pre, termp_it_post }, /* It */
1.264     schwarze  142:        { termp_under_pre, NULL }, /* Ad */
1.61      kristaps  143:        { termp_an_pre, termp_an_post }, /* An */
1.69      kristaps  144:        { termp_under_pre, NULL }, /* Ar */
1.1       kristaps  145:        { termp_cd_pre, NULL }, /* Cd */
1.69      kristaps  146:        { termp_bold_pre, NULL }, /* Cm */
1.264     schwarze  147:        { NULL, NULL }, /* Dv */
                    148:        { NULL, NULL }, /* Er */
                    149:        { NULL, NULL }, /* Ev */
1.1       kristaps  150:        { termp_ex_pre, NULL }, /* Ex */
1.264     schwarze  151:        { termp_fa_pre, NULL }, /* Fa */
                    152:        { termp_fd_pre, termp_fd_post }, /* Fd */
1.1       kristaps  153:        { termp_fl_pre, NULL }, /* Fl */
1.264     schwarze  154:        { termp_fn_pre, NULL }, /* Fn */
                    155:        { termp_ft_pre, NULL }, /* Ft */
                    156:        { termp_bold_pre, NULL }, /* Ic */
                    157:        { termp_in_pre, termp_in_post }, /* In */
1.102     kristaps  158:        { termp_li_pre, NULL }, /* Li */
1.264     schwarze  159:        { termp_nd_pre, NULL }, /* Nd */
                    160:        { termp_nm_pre, termp_nm_post }, /* Nm */
1.188     kristaps  161:        { termp_quote_pre, termp_quote_post }, /* Op */
1.268     schwarze  162:        { termp_ft_pre, NULL }, /* Ot */
1.69      kristaps  163:        { termp_under_pre, NULL }, /* Pa */
1.1       kristaps  164:        { termp_rv_pre, NULL }, /* Rv */
1.264     schwarze  165:        { NULL, NULL }, /* St */
1.69      kristaps  166:        { termp_under_pre, NULL }, /* Va */
1.143     kristaps  167:        { termp_vt_pre, NULL }, /* Vt */
1.1       kristaps  168:        { termp_xr_pre, NULL }, /* Xr */
1.184     kristaps  169:        { termp__a_pre, termp____post }, /* %A */
1.84      kristaps  170:        { termp_under_pre, termp____post }, /* %B */
1.1       kristaps  171:        { NULL, termp____post }, /* %D */
1.84      kristaps  172:        { termp_under_pre, termp____post }, /* %I */
1.69      kristaps  173:        { termp_under_pre, termp____post }, /* %J */
1.1       kristaps  174:        { NULL, termp____post }, /* %N */
                    175:        { NULL, termp____post }, /* %O */
                    176:        { NULL, termp____post }, /* %P */
                    177:        { NULL, termp____post }, /* %R */
1.203     kristaps  178:        { termp__t_pre, termp__t_post }, /* %T */
1.1       kristaps  179:        { NULL, termp____post }, /* %V */
                    180:        { NULL, NULL }, /* Ac */
1.188     kristaps  181:        { termp_quote_pre, termp_quote_post }, /* Ao */
                    182:        { termp_quote_pre, termp_quote_post }, /* Aq */
1.35      kristaps  183:        { NULL, NULL }, /* At */
1.1       kristaps  184:        { NULL, NULL }, /* Bc */
1.264     schwarze  185:        { termp_bf_pre, NULL }, /* Bf */
1.188     kristaps  186:        { termp_quote_pre, termp_quote_post }, /* Bo */
                    187:        { termp_quote_pre, termp_quote_post }, /* Bq */
1.26      kristaps  188:        { termp_xx_pre, NULL }, /* Bsx */
1.211     kristaps  189:        { termp_bx_pre, NULL }, /* Bx */
1.1       kristaps  190:        { NULL, NULL }, /* Db */
                    191:        { NULL, NULL }, /* Dc */
1.188     kristaps  192:        { termp_quote_pre, termp_quote_post }, /* Do */
                    193:        { termp_quote_pre, termp_quote_post }, /* Dq */
1.112     kristaps  194:        { NULL, NULL }, /* Ec */ /* FIXME: no space */
1.1       kristaps  195:        { NULL, NULL }, /* Ef */
1.264     schwarze  196:        { termp_under_pre, NULL }, /* Em */
1.237     schwarze  197:        { termp_quote_pre, termp_quote_post }, /* Eo */
1.26      kristaps  198:        { termp_xx_pre, NULL }, /* Fx */
1.176     kristaps  199:        { termp_bold_pre, NULL }, /* Ms */
1.254     schwarze  200:        { NULL, NULL }, /* No */
1.1       kristaps  201:        { termp_ns_pre, NULL }, /* Ns */
1.26      kristaps  202:        { termp_xx_pre, NULL }, /* Nx */
                    203:        { termp_xx_pre, NULL }, /* Ox */
1.1       kristaps  204:        { NULL, NULL }, /* Pc */
1.254     schwarze  205:        { NULL, termp_pf_post }, /* Pf */
1.188     kristaps  206:        { termp_quote_pre, termp_quote_post }, /* Po */
                    207:        { termp_quote_pre, termp_quote_post }, /* Pq */
1.1       kristaps  208:        { NULL, NULL }, /* Qc */
1.188     kristaps  209:        { termp_quote_pre, termp_quote_post }, /* Ql */
                    210:        { termp_quote_pre, termp_quote_post }, /* Qo */
                    211:        { termp_quote_pre, termp_quote_post }, /* Qq */
1.1       kristaps  212:        { NULL, NULL }, /* Re */
                    213:        { termp_rs_pre, NULL }, /* Rs */
                    214:        { NULL, NULL }, /* Sc */
1.188     kristaps  215:        { termp_quote_pre, termp_quote_post }, /* So */
                    216:        { termp_quote_pre, termp_quote_post }, /* Sq */
1.1       kristaps  217:        { termp_sm_pre, NULL }, /* Sm */
1.69      kristaps  218:        { termp_under_pre, NULL }, /* Sx */
                    219:        { termp_bold_pre, NULL }, /* Sy */
1.1       kristaps  220:        { NULL, NULL }, /* Tn */
1.26      kristaps  221:        { termp_xx_pre, NULL }, /* Ux */
1.1       kristaps  222:        { NULL, NULL }, /* Xc */
                    223:        { NULL, NULL }, /* Xo */
1.264     schwarze  224:        { termp_fo_pre, termp_fo_post }, /* Fo */
                    225:        { NULL, NULL }, /* Fc */
1.188     kristaps  226:        { termp_quote_pre, termp_quote_post }, /* Oo */
1.1       kristaps  227:        { NULL, NULL }, /* Oc */
1.159     schwarze  228:        { termp_bk_pre, termp_bk_post }, /* Bk */
1.1       kristaps  229:        { NULL, NULL }, /* Ek */
                    230:        { termp_bt_pre, NULL }, /* Bt */
                    231:        { NULL, NULL }, /* Hf */
1.268     schwarze  232:        { termp_under_pre, NULL }, /* Fr */
1.1       kristaps  233:        { termp_ud_pre, NULL }, /* Ud */
1.37      kristaps  234:        { NULL, termp_lb_post }, /* Lb */
1.264     schwarze  235:        { termp_sp_pre, NULL }, /* Lp */
                    236:        { termp_lk_pre, NULL }, /* Lk */
                    237:        { termp_under_pre, NULL }, /* Mt */
                    238:        { termp_quote_pre, termp_quote_post }, /* Brq */
                    239:        { termp_quote_pre, termp_quote_post }, /* Bro */
                    240:        { NULL, NULL }, /* Brc */
                    241:        { NULL, termp____post }, /* %C */
1.268     schwarze  242:        { termp_es_pre, NULL }, /* Es */
                    243:        { termp_quote_pre, termp_quote_post }, /* En */
1.264     schwarze  244:        { termp_xx_pre, NULL }, /* Dx */
                    245:        { NULL, termp____post }, /* %Q */
1.76      kristaps  246:        { termp_sp_pre, NULL }, /* br */
1.264     schwarze  247:        { termp_sp_pre, NULL }, /* sp */
                    248:        { NULL, termp____post }, /* %U */
                    249:        { NULL, NULL }, /* Ta */
1.260     schwarze  250:        { termp_ll_pre, NULL }, /* ll */
1.1       kristaps  251: };
                    252:
                    253:
1.70      kristaps  254: void
1.89      kristaps  255: terminal_mdoc(void *arg, const struct mdoc *mdoc)
1.1       kristaps  256: {
1.70      kristaps  257:        const struct mdoc_node  *n;
1.245     schwarze  258:        const struct mdoc_meta  *meta;
1.89      kristaps  259:        struct termp            *p;
                    260:
                    261:        p = (struct termp *)arg;
1.111     kristaps  262:
1.238     schwarze  263:        if (0 == p->defindent)
                    264:                p->defindent = 5;
                    265:
1.111     kristaps  266:        p->overstep = 0;
1.123     joerg     267:        p->maxrmargin = p->defrmargin;
1.157     kristaps  268:        p->tabwidth = term_len(p, 5);
1.89      kristaps  269:
                    270:        if (NULL == p->symtab)
1.230     kristaps  271:                p->symtab = mchars_alloc();
1.70      kristaps  272:
                    273:        n = mdoc_node(mdoc);
1.245     schwarze  274:        meta = mdoc_meta(mdoc);
1.146     schwarze  275:
1.245     schwarze  276:        term_begin(p, print_mdoc_head, print_mdoc_foot, meta);
1.70      kristaps  277:
1.271     schwarze  278:        if (n->child) {
                    279:                if (MDOC_Sh != n->child->tok)
                    280:                        term_vspace(p);
1.245     schwarze  281:                print_mdoc_nodelist(p, NULL, meta, n->child);
1.271     schwarze  282:        }
1.144     kristaps  283:
                    284:        term_end(p);
1.1       kristaps  285: }
                    286:
1.3       kristaps  287: static void
1.102     kristaps  288: print_mdoc_nodelist(DECL_ARGS)
1.1       kristaps  289: {
                    290:
1.245     schwarze  291:        print_mdoc_node(p, pair, meta, n);
1.86      kristaps  292:        if (n->next)
1.245     schwarze  293:                print_mdoc_nodelist(p, pair, meta, n->next);
1.1       kristaps  294: }
                    295:
1.3       kristaps  296: static void
1.102     kristaps  297: print_mdoc_node(DECL_ARGS)
1.1       kristaps  298: {
1.102     kristaps  299:        int              chld;
1.1       kristaps  300:        struct termpair  npair;
1.30      kristaps  301:        size_t           offset, rmargin;
1.1       kristaps  302:
1.70      kristaps  303:        chld = 1;
1.29      kristaps  304:        offset = p->offset;
1.30      kristaps  305:        rmargin = p->rmargin;
1.244     schwarze  306:        n->prev_font = term_fontq(p);
1.29      kristaps  307:
1.97      kristaps  308:        memset(&npair, 0, sizeof(struct termpair));
1.1       kristaps  309:        npair.ppair = pair;
1.172     kristaps  310:
                    311:        /*
                    312:         * Keeps only work until the end of a line.  If a keep was
                    313:         * invoked in a prior line, revert it to PREKEEP.
                    314:         */
                    315:
1.253     schwarze  316:        if (TERMP_KEEP & p->flags) {
1.252     schwarze  317:                if (n->prev ? (n->prev->lastline != n->line) :
1.248     schwarze  318:                    (n->parent && n->parent->line != n->line)) {
1.172     kristaps  319:                        p->flags &= ~TERMP_KEEP;
                    320:                        p->flags |= TERMP_PREKEEP;
                    321:                }
                    322:        }
1.197     schwarze  323:
                    324:        /*
1.217     schwarze  325:         * After the keep flags have been set up, we may now
                    326:         * produce output.  Note that some pre-handlers do so.
                    327:         */
                    328:
                    329:        switch (n->type) {
1.264     schwarze  330:        case MDOC_TEXT:
1.217     schwarze  331:                if (' ' == *n->string && MDOC_LINE & n->flags)
                    332:                        term_newln(p);
1.222     kristaps  333:                if (MDOC_DELIMC & n->flags)
                    334:                        p->flags |= TERMP_NOSPACE;
1.217     schwarze  335:                term_word(p, n->string);
1.222     kristaps  336:                if (MDOC_DELIMO & n->flags)
                    337:                        p->flags |= TERMP_NOSPACE;
1.217     schwarze  338:                break;
1.264     schwarze  339:        case MDOC_EQN:
1.233     kristaps  340:                term_eqn(p, n->eqn);
1.217     schwarze  341:                break;
1.264     schwarze  342:        case MDOC_TBL:
1.217     schwarze  343:                term_tbl(p, n->span);
                    344:                break;
                    345:        default:
                    346:                if (termacts[n->tok].pre && ENDBODY_NOT == n->end)
                    347:                        chld = (*termacts[n->tok].pre)
1.245     schwarze  348:                                (p, &npair, meta, n);
1.217     schwarze  349:                break;
                    350:        }
                    351:
1.86      kristaps  352:        if (chld && n->child)
1.245     schwarze  353:                print_mdoc_nodelist(p, &npair, meta, n->child);
1.1       kristaps  354:
1.244     schwarze  355:        term_fontpopq(p,
                    356:            (ENDBODY_NOT == n->end ? n : n->pending)->prev_font);
1.46      kristaps  357:
1.206     kristaps  358:        switch (n->type) {
1.264     schwarze  359:        case MDOC_TEXT:
1.206     kristaps  360:                break;
1.264     schwarze  361:        case MDOC_TBL:
1.216     kristaps  362:                break;
1.264     schwarze  363:        case MDOC_EQN:
1.206     kristaps  364:                break;
                    365:        default:
                    366:                if ( ! termacts[n->tok].post || MDOC_ENDED & n->flags)
                    367:                        break;
1.245     schwarze  368:                (void)(*termacts[n->tok].post)(p, &npair, meta, n);
1.162     schwarze  369:
                    370:                /*
                    371:                 * Explicit end tokens not only call the post
                    372:                 * handler, but also tell the respective block
                    373:                 * that it must not call the post handler again.
                    374:                 */
1.165     kristaps  375:                if (ENDBODY_NOT != n->end)
1.162     schwarze  376:                        n->pending->flags |= MDOC_ENDED;
                    377:
                    378:                /*
                    379:                 * End of line terminating an implicit block
                    380:                 * while an explicit block is still open.
                    381:                 * Continue the explicit block without spacing.
                    382:                 */
                    383:                if (ENDBODY_NOSPACE == n->end)
                    384:                        p->flags |= TERMP_NOSPACE;
1.206     kristaps  385:                break;
1.162     schwarze  386:        }
1.121     kristaps  387:
                    388:        if (MDOC_EOS & n->flags)
                    389:                p->flags |= TERMP_SENTENCE;
1.29      kristaps  390:
1.260     schwarze  391:        if (MDOC_ll != n->tok) {
                    392:                p->offset = offset;
                    393:                p->rmargin = rmargin;
                    394:        }
1.1       kristaps  395: }
                    396:
1.3       kristaps  397: static void
1.145     kristaps  398: print_mdoc_foot(struct termp *p, const void *arg)
1.1       kristaps  399: {
1.245     schwarze  400:        const struct mdoc_meta *meta;
1.144     kristaps  401:
1.245     schwarze  402:        meta = (const struct mdoc_meta *)arg;
1.1       kristaps  403:
1.102     kristaps  404:        term_fontrepl(p, TERMFONT_NONE);
1.101     kristaps  405:
1.264     schwarze  406:        /*
1.9       kristaps  407:         * Output the footer in new-groff style, that is, three columns
                    408:         * with the middle being the manual date and flanking columns
                    409:         * being the operating system:
                    410:         *
                    411:         * SYSTEM                  DATE                    SYSTEM
                    412:         */
                    413:
1.1       kristaps  414:        term_vspace(p);
                    415:
1.9       kristaps  416:        p->offset = 0;
1.264     schwarze  417:        p->rmargin = (p->maxrmargin -
                    418:            term_strlen(p, meta->date) + term_len(p, 1)) / 2;
1.250     schwarze  419:        p->trailspace = 1;
1.1       kristaps  420:        p->flags |= TERMP_NOSPACE | TERMP_NOBREAK;
                    421:
1.245     schwarze  422:        term_word(p, meta->os);
1.1       kristaps  423:        term_flushln(p);
                    424:
1.9       kristaps  425:        p->offset = p->rmargin;
1.245     schwarze  426:        p->rmargin = p->maxrmargin - term_strlen(p, meta->os);
1.234     schwarze  427:        p->flags |= TERMP_NOSPACE;
1.9       kristaps  428:
1.245     schwarze  429:        term_word(p, meta->date);
1.9       kristaps  430:        term_flushln(p);
                    431:
1.1       kristaps  432:        p->offset = p->rmargin;
                    433:        p->rmargin = p->maxrmargin;
1.250     schwarze  434:        p->trailspace = 0;
1.1       kristaps  435:        p->flags &= ~TERMP_NOBREAK;
1.234     schwarze  436:        p->flags |= TERMP_NOSPACE;
1.1       kristaps  437:
1.245     schwarze  438:        term_word(p, meta->os);
1.1       kristaps  439:        term_flushln(p);
                    440:
1.9       kristaps  441:        p->offset = 0;
                    442:        p->rmargin = p->maxrmargin;
                    443:        p->flags = 0;
1.1       kristaps  444: }
                    445:
1.3       kristaps  446: static void
1.144     kristaps  447: print_mdoc_head(struct termp *p, const void *arg)
1.1       kristaps  448: {
1.266     schwarze  449:        const struct mdoc_meta  *meta;
1.267     schwarze  450:        char                    *volume, *title;
                    451:        size_t                   vollen, titlen;
1.144     kristaps  452:
1.245     schwarze  453:        meta = (const struct mdoc_meta *)arg;
1.1       kristaps  454:
                    455:        /*
                    456:         * The header is strange.  It has three components, which are
                    457:         * really two with the first duplicated.  It goes like this:
                    458:         *
                    459:         * IDENTIFIER              TITLE                   IDENTIFIER
                    460:         *
                    461:         * The IDENTIFIER is NAME(SECTION), which is the command-name
                    462:         * (if given, or "unknown" if not) followed by the manual page
                    463:         * section.  These are given in `Dt'.  The TITLE is a free-form
                    464:         * string depending on the manual volume.  If not specified, it
                    465:         * switches on the manual section.
                    466:         */
                    467:
1.235     schwarze  468:        p->offset = 0;
                    469:        p->rmargin = p->maxrmargin;
                    470:
1.245     schwarze  471:        assert(meta->vol);
1.267     schwarze  472:        if (NULL == meta->arch)
                    473:                volume = mandoc_strdup(meta->vol);
                    474:        else
                    475:                mandoc_asprintf(&volume, "%s (%s)",
                    476:                    meta->vol, meta->arch);
                    477:        vollen = term_strlen(p, volume);
1.1       kristaps  478:
1.275   ! schwarze  479:        if (NULL == meta->msec)
        !           480:                title = mandoc_strdup(meta->title);
        !           481:        else
        !           482:                mandoc_asprintf(&title, "%s(%s)",
        !           483:                    meta->title, meta->msec);
1.235     schwarze  484:        titlen = term_strlen(p, title);
1.1       kristaps  485:
1.235     schwarze  486:        p->flags |= TERMP_NOBREAK | TERMP_NOSPACE;
1.250     schwarze  487:        p->trailspace = 1;
1.1       kristaps  488:        p->offset = 0;
1.267     schwarze  489:        p->rmargin = 2 * (titlen+1) + vollen < p->maxrmargin ?
                    490:            (p->maxrmargin - vollen + term_len(p, 1)) / 2 :
                    491:            p->maxrmargin - vollen;
1.1       kristaps  492:
                    493:        term_word(p, title);
                    494:        term_flushln(p);
                    495:
1.235     schwarze  496:        p->flags |= TERMP_NOSPACE;
1.1       kristaps  497:        p->offset = p->rmargin;
1.267     schwarze  498:        p->rmargin = p->offset + vollen + titlen < p->maxrmargin ?
1.235     schwarze  499:            p->maxrmargin - titlen : p->maxrmargin;
1.1       kristaps  500:
1.267     schwarze  501:        term_word(p, volume);
1.1       kristaps  502:        term_flushln(p);
                    503:
                    504:        p->flags &= ~TERMP_NOBREAK;
1.250     schwarze  505:        p->trailspace = 0;
1.235     schwarze  506:        if (p->rmargin + titlen <= p->maxrmargin) {
                    507:                p->flags |= TERMP_NOSPACE;
                    508:                p->offset = p->rmargin;
                    509:                p->rmargin = p->maxrmargin;
                    510:                term_word(p, title);
                    511:                term_flushln(p);
                    512:        }
1.1       kristaps  513:
1.235     schwarze  514:        p->flags &= ~TERMP_NOSPACE;
1.9       kristaps  515:        p->offset = 0;
1.1       kristaps  516:        p->rmargin = p->maxrmargin;
1.266     schwarze  517:        free(title);
1.267     schwarze  518:        free(volume);
1.1       kristaps  519: }
                    520:
                    521: static size_t
1.157     kristaps  522: a2height(const struct termp *p, const char *v)
1.1       kristaps  523: {
1.92      kristaps  524:        struct roffsu    su;
1.91      kristaps  525:
1.231     kristaps  526:
1.157     kristaps  527:        assert(v);
                    528:        if ( ! a2roffsu(v, &su, SCALE_VS))
1.231     kristaps  529:                SCALE_VS_INIT(&su, atoi(v));
1.91      kristaps  530:
1.157     kristaps  531:        return(term_vspan(p, &su));
1.91      kristaps  532: }
1.1       kristaps  533:
1.91      kristaps  534: static size_t
1.157     kristaps  535: a2width(const struct termp *p, const char *v)
1.91      kristaps  536: {
1.92      kristaps  537:        struct roffsu    su;
1.1       kristaps  538:
1.154     kristaps  539:        assert(v);
                    540:        if ( ! a2roffsu(v, &su, SCALE_MAX))
1.157     kristaps  541:                SCALE_HS_INIT(&su, term_strlen(p, v));
1.1       kristaps  542:
1.157     kristaps  543:        return(term_hspan(p, &su));
1.1       kristaps  544: }
                    545:
                    546: static size_t
1.157     kristaps  547: a2offs(const struct termp *p, const char *v)
1.1       kristaps  548: {
1.92      kristaps  549:        struct roffsu    su;
1.1       kristaps  550:
1.148     kristaps  551:        if ('\0' == *v)
1.91      kristaps  552:                return(0);
1.148     kristaps  553:        else if (0 == strcmp(v, "left"))
1.19      kristaps  554:                return(0);
1.148     kristaps  555:        else if (0 == strcmp(v, "indent"))
1.238     schwarze  556:                return(term_len(p, p->defindent + 1));
1.148     kristaps  557:        else if (0 == strcmp(v, "indent-two"))
1.238     schwarze  558:                return(term_len(p, (p->defindent + 1) * 2));
1.148     kristaps  559:        else if ( ! a2roffsu(v, &su, SCALE_MAX))
1.157     kristaps  560:                SCALE_HS_INIT(&su, term_strlen(p, v));
1.10      kristaps  561:
1.157     kristaps  562:        return(term_hspan(p, &su));
1.1       kristaps  563: }
                    564:
1.108     kristaps  565: /*
                    566:  * Determine how much space to print out before block elements of `It'
                    567:  * (and thus `Bl') and `Bd'.  And then go ahead and print that space,
                    568:  * too.
                    569:  */
1.54      kristaps  570: static void
1.264     schwarze  571: print_bvspace(struct termp *p,
                    572:        const struct mdoc_node *bl,
                    573:        const struct mdoc_node *n)
1.1       kristaps  574: {
1.86      kristaps  575:        const struct mdoc_node  *nn;
1.236     schwarze  576:
                    577:        assert(n);
1.1       kristaps  578:
                    579:        term_newln(p);
1.150     kristaps  580:
1.202     kristaps  581:        if (MDOC_Bd == bl->tok && bl->norm->Bd.comp)
1.150     kristaps  582:                return;
1.202     kristaps  583:        if (MDOC_Bl == bl->tok && bl->norm->Bl.comp)
1.54      kristaps  584:                return;
                    585:
1.85      kristaps  586:        /* Do not vspace directly after Ss/Sh. */
1.1       kristaps  587:
1.86      kristaps  588:        for (nn = n; nn; nn = nn->parent) {
                    589:                if (MDOC_BLOCK != nn->type)
1.1       kristaps  590:                        continue;
1.86      kristaps  591:                if (MDOC_Ss == nn->tok)
1.54      kristaps  592:                        return;
1.86      kristaps  593:                if (MDOC_Sh == nn->tok)
1.54      kristaps  594:                        return;
1.86      kristaps  595:                if (NULL == nn->prev)
1.1       kristaps  596:                        continue;
                    597:                break;
                    598:        }
                    599:
1.85      kristaps  600:        /* A `-column' does not assert vspace within the list. */
1.54      kristaps  601:
1.202     kristaps  602:        if (MDOC_Bl == bl->tok && LIST_column == bl->norm->Bl.type)
1.86      kristaps  603:                if (n->prev && MDOC_It == n->prev->tok)
1.54      kristaps  604:                        return;
                    605:
1.85      kristaps  606:        /* A `-diag' without body does not vspace. */
                    607:
1.202     kristaps  608:        if (MDOC_Bl == bl->tok && LIST_diag == bl->norm->Bl.type)
1.86      kristaps  609:                if (n->prev && MDOC_It == n->prev->tok) {
                    610:                        assert(n->prev->body);
                    611:                        if (NULL == n->prev->body->child)
1.55      kristaps  612:                                return;
                    613:                }
                    614:
1.54      kristaps  615:        term_vspace(p);
1.260     schwarze  616: }
                    617:
                    618:
                    619: static int
                    620: termp_ll_pre(DECL_ARGS)
                    621: {
                    622:
1.261     schwarze  623:        term_setwidth(p, n->nchild ? n->child->string : NULL);
1.260     schwarze  624:        return(0);
1.1       kristaps  625: }
                    626:
                    627: static int
                    628: termp_it_pre(DECL_ARGS)
                    629: {
1.86      kristaps  630:        const struct mdoc_node *bl, *nn;
1.265     schwarze  631:        char                    buf[24];
1.264     schwarze  632:        int                     i;
                    633:        size_t                  width, offset, ncols, dcol;
1.126     kristaps  634:        enum mdoc_list          type;
1.1       kristaps  635:
1.86      kristaps  636:        if (MDOC_BLOCK == n->type) {
1.151     kristaps  637:                print_bvspace(p, n->parent->parent, n);
1.54      kristaps  638:                return(1);
                    639:        }
1.1       kristaps  640:
1.86      kristaps  641:        bl = n->parent->parent->parent;
1.202     kristaps  642:        type = bl->norm->Bl.type;
1.1       kristaps  643:
1.264     schwarze  644:        /*
1.108     kristaps  645:         * First calculate width and offset.  This is pretty easy unless
                    646:         * we're a -column list, in which case all prior columns must
                    647:         * be accounted for.
                    648:         */
                    649:
                    650:        width = offset = 0;
                    651:
1.202     kristaps  652:        if (bl->norm->Bl.offs)
                    653:                offset = a2offs(p, bl->norm->Bl.offs);
1.152     kristaps  654:
1.1       kristaps  655:        switch (type) {
1.264     schwarze  656:        case LIST_column:
1.134     kristaps  657:                if (MDOC_HEAD == n->type)
1.1       kristaps  658:                        break;
1.155     kristaps  659:
1.105     kristaps  660:                /*
1.108     kristaps  661:                 * Imitate groff's column handling:
                    662:                 * - For each earlier column, add its width.
                    663:                 * - For less than 5 columns, add four more blanks per
                    664:                 *   column.
                    665:                 * - For exactly 5 columns, add three more blank per
                    666:                 *   column.
                    667:                 * - For more than 5 columns, add only one column.
1.105     kristaps  668:                 */
1.202     kristaps  669:                ncols = bl->norm->Bl.ncols;
1.264     schwarze  670:                dcol = ncols < 5 ? term_len(p, 4) :
                    671:                    ncols == 5 ? term_len(p, 3) : term_len(p, 1);
1.108     kristaps  672:
1.134     kristaps  673:                /*
                    674:                 * Calculate the offset by applying all prior MDOC_BODY,
                    675:                 * so we stop at the MDOC_HEAD (NULL == nn->prev).
                    676:                 */
                    677:
1.264     schwarze  678:                for (i = 0, nn = n->prev;
                    679:                    nn->prev && i < (int)ncols;
                    680:                    nn = nn->prev, i++)
                    681:                        offset += dcol + a2width(p,
                    682:                            bl->norm->Bl.cols[i]);
1.105     kristaps  683:
                    684:                /*
1.108     kristaps  685:                 * When exceeding the declared number of columns, leave
                    686:                 * the remaining widths at 0.  This will later be
                    687:                 * adjusted to the default width of 10, or, for the last
                    688:                 * column, stretched to the right margin.
1.58      kristaps  689:                 */
1.108     kristaps  690:                if (i >= (int)ncols)
                    691:                        break;
1.58      kristaps  692:
1.105     kristaps  693:                /*
1.108     kristaps  694:                 * Use the declared column widths, extended as explained
                    695:                 * in the preceding paragraph.
1.105     kristaps  696:                 */
1.202     kristaps  697:                width = a2width(p, bl->norm->Bl.cols[i]) + dcol;
1.1       kristaps  698:                break;
                    699:        default:
1.202     kristaps  700:                if (NULL == bl->norm->Bl.width)
1.108     kristaps  701:                        break;
                    702:
1.264     schwarze  703:                /*
1.108     kristaps  704:                 * Note: buffer the width by 2, which is groff's magic
                    705:                 * number for buffering single arguments.  See the above
                    706:                 * handling for column for how this changes.
                    707:                 */
1.202     kristaps  708:                assert(bl->norm->Bl.width);
                    709:                width = a2width(p, bl->norm->Bl.width) + term_len(p, 2);
1.1       kristaps  710:                break;
                    711:        }
                    712:
1.264     schwarze  713:        /*
1.1       kristaps  714:         * List-type can override the width in the case of fixed-head
                    715:         * values (bullet, dash/hyphen, enum).  Tags need a non-zero
1.67      kristaps  716:         * offset.
1.1       kristaps  717:         */
                    718:
                    719:        switch (type) {
1.264     schwarze  720:        case LIST_bullet:
1.1       kristaps  721:                /* FALLTHROUGH */
1.264     schwarze  722:        case LIST_dash:
1.1       kristaps  723:                /* FALLTHROUGH */
1.264     schwarze  724:        case LIST_hyphen:
1.242     schwarze  725:                /* FALLTHROUGH */
1.264     schwarze  726:        case LIST_enum:
1.242     schwarze  727:                if (width < term_len(p, 2))
                    728:                        width = term_len(p, 2);
1.17      kristaps  729:                break;
1.264     schwarze  730:        case LIST_hang:
1.39      kristaps  731:                if (0 == width)
1.157     kristaps  732:                        width = term_len(p, 8);
1.39      kristaps  733:                break;
1.264     schwarze  734:        case LIST_column:
1.49      kristaps  735:                /* FALLTHROUGH */
1.264     schwarze  736:        case LIST_tag:
1.1       kristaps  737:                if (0 == width)
1.157     kristaps  738:                        width = term_len(p, 10);
1.1       kristaps  739:                break;
                    740:        default:
                    741:                break;
                    742:        }
                    743:
1.264     schwarze  744:        /*
1.17      kristaps  745:         * Whitespace control.  Inset bodies need an initial space,
                    746:         * while diagonal bodies need two.
1.1       kristaps  747:         */
                    748:
1.51      kristaps  749:        p->flags |= TERMP_NOSPACE;
                    750:
1.1       kristaps  751:        switch (type) {
1.264     schwarze  752:        case LIST_diag:
1.86      kristaps  753:                if (MDOC_BODY == n->type)
1.62      kristaps  754:                        term_word(p, "\\ \\ ");
1.51      kristaps  755:                break;
1.264     schwarze  756:        case LIST_inset:
1.270     schwarze  757:                if (MDOC_BODY == n->type && n->parent->head->nchild)
1.51      kristaps  758:                        term_word(p, "\\ ");
1.1       kristaps  759:                break;
                    760:        default:
                    761:                break;
                    762:        }
                    763:
1.51      kristaps  764:        p->flags |= TERMP_NOSPACE;
                    765:
1.1       kristaps  766:        switch (type) {
1.264     schwarze  767:        case LIST_diag:
1.86      kristaps  768:                if (MDOC_HEAD == n->type)
1.102     kristaps  769:                        term_fontpush(p, TERMFONT_BOLD);
1.1       kristaps  770:                break;
                    771:        default:
                    772:                break;
                    773:        }
                    774:
                    775:        /*
1.109     kristaps  776:         * Pad and break control.  This is the tricky part.  These flags
                    777:         * are documented in term_flushln() in term.c.  Note that we're
                    778:         * going to unset all of these flags in termp_it_post() when we
                    779:         * exit.
1.1       kristaps  780:         */
                    781:
                    782:        switch (type) {
1.264     schwarze  783:        case LIST_enum:
1.242     schwarze  784:                /*
                    785:                 * Weird special case.
                    786:                 * Very narrow enum lists actually hang.
                    787:                 */
                    788:                if (width == term_len(p, 2))
                    789:                        p->flags |= TERMP_HANG;
                    790:                /* FALLTHROUGH */
1.264     schwarze  791:        case LIST_bullet:
1.1       kristaps  792:                /* FALLTHROUGH */
1.264     schwarze  793:        case LIST_dash:
1.1       kristaps  794:                /* FALLTHROUGH */
1.264     schwarze  795:        case LIST_hyphen:
1.250     schwarze  796:                if (MDOC_HEAD != n->type)
                    797:                        break;
                    798:                p->flags |= TERMP_NOBREAK;
                    799:                p->trailspace = 1;
1.39      kristaps  800:                break;
1.264     schwarze  801:        case LIST_hang:
1.250     schwarze  802:                if (MDOC_HEAD != n->type)
1.59      kristaps  803:                        break;
                    804:
                    805:                /*
                    806:                 * This is ugly.  If `-hang' is specified and the body
                    807:                 * is a `Bl' or `Bd', then we want basically to nullify
                    808:                 * the "overstep" effect in term_flushln() and treat
                    809:                 * this as a `-ohang' list instead.
                    810:                 */
1.264     schwarze  811:                if (n->next->child &&
                    812:                    (MDOC_Bl == n->next->child->tok ||
                    813:                     MDOC_Bd == n->next->child->tok))
1.250     schwarze  814:                        break;
                    815:
1.263     schwarze  816:                p->flags |= TERMP_NOBREAK | TERMP_BRIND | TERMP_HANG;
1.250     schwarze  817:                p->trailspace = 1;
1.39      kristaps  818:                break;
1.264     schwarze  819:        case LIST_tag:
1.86      kristaps  820:                if (MDOC_HEAD != n->type)
1.39      kristaps  821:                        break;
1.250     schwarze  822:
1.263     schwarze  823:                p->flags |= TERMP_NOBREAK | TERMP_BRIND;
1.250     schwarze  824:                p->trailspace = 2;
                    825:
1.86      kristaps  826:                if (NULL == n->next || NULL == n->next->child)
1.39      kristaps  827:                        p->flags |= TERMP_DANGLE;
1.1       kristaps  828:                break;
1.264     schwarze  829:        case LIST_column:
1.134     kristaps  830:                if (MDOC_HEAD == n->type)
                    831:                        break;
                    832:
1.250     schwarze  833:                if (NULL == n->next) {
1.134     kristaps  834:                        p->flags &= ~TERMP_NOBREAK;
1.250     schwarze  835:                        p->trailspace = 0;
                    836:                } else {
1.134     kristaps  837:                        p->flags |= TERMP_NOBREAK;
1.250     schwarze  838:                        p->trailspace = 1;
                    839:                }
1.134     kristaps  840:
1.1       kristaps  841:                break;
1.264     schwarze  842:        case LIST_diag:
1.250     schwarze  843:                if (MDOC_HEAD != n->type)
                    844:                        break;
1.263     schwarze  845:                p->flags |= TERMP_NOBREAK | TERMP_BRIND;
1.250     schwarze  846:                p->trailspace = 1;
1.1       kristaps  847:                break;
                    848:        default:
                    849:                break;
                    850:        }
                    851:
1.264     schwarze  852:        /*
1.1       kristaps  853:         * Margin control.  Set-head-width lists have their right
                    854:         * margins shortened.  The body for these lists has the offset
                    855:         * necessarily lengthened.  Everybody gets the offset.
                    856:         */
                    857:
                    858:        p->offset += offset;
                    859:
                    860:        switch (type) {
1.264     schwarze  861:        case LIST_hang:
1.59      kristaps  862:                /*
                    863:                 * Same stipulation as above, regarding `-hang'.  We
                    864:                 * don't want to recalculate rmargin and offsets when
                    865:                 * using `Bd' or `Bl' within `-hang' overstep lists.
                    866:                 */
1.86      kristaps  867:                if (MDOC_HEAD == n->type && n->next->child &&
1.264     schwarze  868:                    (MDOC_Bl == n->next->child->tok ||
                    869:                     MDOC_Bd == n->next->child->tok))
1.59      kristaps  870:                        break;
                    871:                /* FALLTHROUGH */
1.264     schwarze  872:        case LIST_bullet:
1.1       kristaps  873:                /* FALLTHROUGH */
1.264     schwarze  874:        case LIST_dash:
1.1       kristaps  875:                /* FALLTHROUGH */
1.264     schwarze  876:        case LIST_enum:
1.1       kristaps  877:                /* FALLTHROUGH */
1.264     schwarze  878:        case LIST_hyphen:
1.1       kristaps  879:                /* FALLTHROUGH */
1.264     schwarze  880:        case LIST_tag:
1.49      kristaps  881:                assert(width);
1.86      kristaps  882:                if (MDOC_HEAD == n->type)
1.1       kristaps  883:                        p->rmargin = p->offset + width;
1.259     schwarze  884:                else {
1.1       kristaps  885:                        p->offset += width;
1.259     schwarze  886:                        if (p->rmargin < p->offset)
                    887:                                p->rmargin = p->offset;
                    888:                }
1.1       kristaps  889:                break;
1.264     schwarze  890:        case LIST_column:
1.49      kristaps  891:                assert(width);
1.1       kristaps  892:                p->rmargin = p->offset + width;
1.264     schwarze  893:                /*
1.50      kristaps  894:                 * XXX - this behaviour is not documented: the
                    895:                 * right-most column is filled to the right margin.
                    896:                 */
1.134     kristaps  897:                if (MDOC_HEAD == n->type)
                    898:                        break;
                    899:                if (NULL == n->next && p->rmargin < p->maxrmargin)
1.50      kristaps  900:                        p->rmargin = p->maxrmargin;
1.1       kristaps  901:                break;
                    902:        default:
                    903:                break;
                    904:        }
                    905:
1.264     schwarze  906:        /*
1.1       kristaps  907:         * The dash, hyphen, bullet and enum lists all have a special
1.264     schwarze  908:         * HEAD character (temporarily bold, in some cases).
1.1       kristaps  909:         */
                    910:
1.86      kristaps  911:        if (MDOC_HEAD == n->type)
1.1       kristaps  912:                switch (type) {
1.264     schwarze  913:                case LIST_bullet:
1.102     kristaps  914:                        term_fontpush(p, TERMFONT_BOLD);
1.1       kristaps  915:                        term_word(p, "\\[bu]");
1.102     kristaps  916:                        term_fontpop(p);
1.1       kristaps  917:                        break;
1.264     schwarze  918:                case LIST_dash:
1.1       kristaps  919:                        /* FALLTHROUGH */
1.264     schwarze  920:                case LIST_hyphen:
1.102     kristaps  921:                        term_fontpush(p, TERMFONT_BOLD);
1.27      kristaps  922:                        term_word(p, "\\(hy");
1.102     kristaps  923:                        term_fontpop(p);
1.1       kristaps  924:                        break;
1.264     schwarze  925:                case LIST_enum:
1.1       kristaps  926:                        (pair->ppair->ppair->count)++;
1.265     schwarze  927:                        (void)snprintf(buf, sizeof(buf), "%d.",
1.264     schwarze  928:                            pair->ppair->ppair->count);
1.1       kristaps  929:                        term_word(p, buf);
                    930:                        break;
                    931:                default:
                    932:                        break;
                    933:                }
                    934:
1.264     schwarze  935:        /*
1.1       kristaps  936:         * If we're not going to process our children, indicate so here.
                    937:         */
                    938:
                    939:        switch (type) {
1.264     schwarze  940:        case LIST_bullet:
1.1       kristaps  941:                /* FALLTHROUGH */
1.264     schwarze  942:        case LIST_item:
1.1       kristaps  943:                /* FALLTHROUGH */
1.264     schwarze  944:        case LIST_dash:
1.1       kristaps  945:                /* FALLTHROUGH */
1.264     schwarze  946:        case LIST_hyphen:
1.1       kristaps  947:                /* FALLTHROUGH */
1.264     schwarze  948:        case LIST_enum:
1.86      kristaps  949:                if (MDOC_HEAD == n->type)
1.1       kristaps  950:                        return(0);
                    951:                break;
1.264     schwarze  952:        case LIST_column:
1.134     kristaps  953:                if (MDOC_HEAD == n->type)
1.1       kristaps  954:                        return(0);
                    955:                break;
                    956:        default:
                    957:                break;
                    958:        }
                    959:
                    960:        return(1);
                    961: }
                    962:
                    963: static void
                    964: termp_it_post(DECL_ARGS)
                    965: {
1.126     kristaps  966:        enum mdoc_list     type;
1.1       kristaps  967:
1.109     kristaps  968:        if (MDOC_BLOCK == n->type)
1.1       kristaps  969:                return;
                    970:
1.202     kristaps  971:        type = n->parent->parent->parent->norm->Bl.type;
1.1       kristaps  972:
                    973:        switch (type) {
1.264     schwarze  974:        case LIST_item:
1.1       kristaps  975:                /* FALLTHROUGH */
1.264     schwarze  976:        case LIST_diag:
1.53      kristaps  977:                /* FALLTHROUGH */
1.264     schwarze  978:        case LIST_inset:
1.86      kristaps  979:                if (MDOC_BODY == n->type)
1.130     schwarze  980:                        term_newln(p);
1.1       kristaps  981:                break;
1.264     schwarze  982:        case LIST_column:
1.134     kristaps  983:                if (MDOC_BODY == n->type)
1.1       kristaps  984:                        term_flushln(p);
                    985:                break;
                    986:        default:
1.130     schwarze  987:                term_newln(p);
1.1       kristaps  988:                break;
                    989:        }
                    990:
1.264     schwarze  991:        /*
1.109     kristaps  992:         * Now that our output is flushed, we can reset our tags.  Since
                    993:         * only `It' sets these flags, we're free to assume that nobody
                    994:         * has munged them in the meanwhile.
                    995:         */
                    996:
1.263     schwarze  997:        p->flags &= ~(TERMP_NOBREAK | TERMP_BRIND |
                    998:                        TERMP_DANGLE | TERMP_HANG);
1.250     schwarze  999:        p->trailspace = 0;
1.1       kristaps 1000: }
                   1001:
                   1002: static int
                   1003: termp_nm_pre(DECL_ARGS)
                   1004: {
                   1005:
1.253     schwarze 1006:        if (MDOC_BLOCK == n->type) {
                   1007:                p->flags |= TERMP_PREKEEP;
1.164     schwarze 1008:                return(1);
1.253     schwarze 1009:        }
1.164     schwarze 1010:
                   1011:        if (MDOC_BODY == n->type) {
                   1012:                if (NULL == n->child)
                   1013:                        return(0);
1.234     schwarze 1014:                p->flags |= TERMP_NOSPACE;
1.164     schwarze 1015:                p->offset += term_len(p, 1) +
1.245     schwarze 1016:                    (NULL == n->prev->child ?
                   1017:                     term_strlen(p, meta->name) :
1.164     schwarze 1018:                     MDOC_TEXT == n->prev->child->type ?
1.245     schwarze 1019:                     term_strlen(p, n->prev->child->string) :
1.164     schwarze 1020:                     term_len(p, 5));
1.262     schwarze 1021:                if (p->rmargin < p->offset)
                   1022:                        p->rmargin = p->offset;
1.164     schwarze 1023:                return(1);
                   1024:        }
                   1025:
1.245     schwarze 1026:        if (NULL == n->child && NULL == meta->name)
1.164     schwarze 1027:                return(0);
1.125     kristaps 1028:
1.177     schwarze 1029:        if (MDOC_HEAD == n->type)
                   1030:                synopsis_pre(p, n->parent);
1.102     kristaps 1031:
1.164     schwarze 1032:        if (MDOC_HEAD == n->type && n->next->child) {
1.263     schwarze 1033:                p->flags |= TERMP_NOSPACE | TERMP_NOBREAK | TERMP_BRIND;
1.250     schwarze 1034:                p->trailspace = 1;
1.185     schwarze 1035:                p->rmargin = p->offset + term_len(p, 1);
                   1036:                if (NULL == n->child) {
1.245     schwarze 1037:                        p->rmargin += term_strlen(p, meta->name);
1.185     schwarze 1038:                } else if (MDOC_TEXT == n->child->type) {
                   1039:                        p->rmargin += term_strlen(p, n->child->string);
                   1040:                        if (n->child->next)
                   1041:                                p->flags |= TERMP_HANG;
                   1042:                } else {
                   1043:                        p->rmargin += term_len(p, 5);
                   1044:                        p->flags |= TERMP_HANG;
                   1045:                }
1.164     schwarze 1046:        }
                   1047:
1.102     kristaps 1048:        term_fontpush(p, TERMFONT_BOLD);
1.86      kristaps 1049:        if (NULL == n->child)
1.245     schwarze 1050:                term_word(p, meta->name);
1.1       kristaps 1051:        return(1);
                   1052: }
                   1053:
1.164     schwarze 1054: static void
                   1055: termp_nm_post(DECL_ARGS)
                   1056: {
                   1057:
1.253     schwarze 1058:        if (MDOC_BLOCK == n->type) {
                   1059:                p->flags &= ~(TERMP_KEEP | TERMP_PREKEEP);
                   1060:        } else if (MDOC_HEAD == n->type && n->next->child) {
1.164     schwarze 1061:                term_flushln(p);
1.263     schwarze 1062:                p->flags &= ~(TERMP_NOBREAK | TERMP_BRIND | TERMP_HANG);
1.250     schwarze 1063:                p->trailspace = 0;
1.234     schwarze 1064:        } else if (MDOC_BODY == n->type && n->child)
1.164     schwarze 1065:                term_flushln(p);
                   1066: }
                   1067:
1.1       kristaps 1068: static int
                   1069: termp_fl_pre(DECL_ARGS)
                   1070: {
                   1071:
1.102     kristaps 1072:        term_fontpush(p, TERMFONT_BOLD);
1.1       kristaps 1073:        term_word(p, "\\-");
1.103     kristaps 1074:
                   1075:        if (n->child)
1.114     kristaps 1076:                p->flags |= TERMP_NOSPACE;
                   1077:        else if (n->next && n->next->line == n->line)
1.103     kristaps 1078:                p->flags |= TERMP_NOSPACE;
                   1079:
1.1       kristaps 1080:        return(1);
                   1081: }
                   1082:
                   1083: static int
1.184     kristaps 1084: termp__a_pre(DECL_ARGS)
                   1085: {
                   1086:
                   1087:        if (n->prev && MDOC__A == n->prev->tok)
                   1088:                if (NULL == n->next || MDOC__A != n->next->tok)
                   1089:                        term_word(p, "and");
                   1090:
                   1091:        return(1);
                   1092: }
                   1093:
                   1094: static int
1.61      kristaps 1095: termp_an_pre(DECL_ARGS)
                   1096: {
                   1097:
1.86      kristaps 1098:        if (NULL == n->child)
1.61      kristaps 1099:                return(1);
                   1100:
                   1101:        /*
1.85      kristaps 1102:         * If not in the AUTHORS section, `An -split' will cause
                   1103:         * newlines to occur before the author name.  If in the AUTHORS
                   1104:         * section, by default, the first `An' invocation is nosplit,
                   1105:         * then all subsequent ones, regardless of whether interspersed
                   1106:         * with other macros/text, are split.  -split, in this case,
                   1107:         * will override the condition of the implied first -nosplit.
1.61      kristaps 1108:         */
1.264     schwarze 1109:
1.86      kristaps 1110:        if (n->sec == SEC_AUTHORS) {
1.61      kristaps 1111:                if ( ! (TERMP_ANPREC & p->flags)) {
                   1112:                        if (TERMP_SPLIT & p->flags)
                   1113:                                term_newln(p);
                   1114:                        return(1);
                   1115:                }
                   1116:                if (TERMP_NOSPLIT & p->flags)
                   1117:                        return(1);
                   1118:                term_newln(p);
                   1119:                return(1);
                   1120:        }
                   1121:
                   1122:        if (TERMP_SPLIT & p->flags)
                   1123:                term_newln(p);
                   1124:
                   1125:        return(1);
                   1126: }
                   1127:
                   1128: static void
                   1129: termp_an_post(DECL_ARGS)
                   1130: {
                   1131:
1.86      kristaps 1132:        if (n->child) {
                   1133:                if (SEC_AUTHORS == n->sec)
1.61      kristaps 1134:                        p->flags |= TERMP_ANPREC;
                   1135:                return;
                   1136:        }
                   1137:
1.202     kristaps 1138:        if (AUTH_split == n->norm->An.auth) {
1.61      kristaps 1139:                p->flags &= ~TERMP_NOSPLIT;
                   1140:                p->flags |= TERMP_SPLIT;
1.202     kristaps 1141:        } else if (AUTH_nosplit == n->norm->An.auth) {
1.61      kristaps 1142:                p->flags &= ~TERMP_SPLIT;
                   1143:                p->flags |= TERMP_NOSPLIT;
                   1144:        }
                   1145:
                   1146: }
                   1147:
                   1148: static int
1.1       kristaps 1149: termp_ns_pre(DECL_ARGS)
                   1150: {
                   1151:
1.215     kristaps 1152:        if ( ! (MDOC_LINE & n->flags))
                   1153:                p->flags |= TERMP_NOSPACE;
1.1       kristaps 1154:        return(1);
                   1155: }
                   1156:
                   1157: static int
                   1158: termp_rs_pre(DECL_ARGS)
                   1159: {
                   1160:
1.86      kristaps 1161:        if (SEC_SEE_ALSO != n->sec)
1.80      kristaps 1162:                return(1);
1.86      kristaps 1163:        if (MDOC_BLOCK == n->type && n->prev)
1.1       kristaps 1164:                term_vspace(p);
                   1165:        return(1);
                   1166: }
                   1167:
                   1168: static int
                   1169: termp_rv_pre(DECL_ARGS)
                   1170: {
1.223     kristaps 1171:        int              nchild;
1.1       kristaps 1172:
                   1173:        term_newln(p);
                   1174:
1.223     kristaps 1175:        nchild = n->nchild;
1.273     schwarze 1176:        if (nchild > 0) {
                   1177:                term_word(p, "The");
1.224     kristaps 1178:
1.273     schwarze 1179:                for (n = n->child; n; n = n->next) {
                   1180:                        term_fontpush(p, TERMFONT_BOLD);
                   1181:                        term_word(p, n->string);
                   1182:                        term_fontpop(p);
1.223     kristaps 1183:
                   1184:                        p->flags |= TERMP_NOSPACE;
1.273     schwarze 1185:                        term_word(p, "()");
                   1186:
                   1187:                        if (n->next == NULL)
                   1188:                                continue;
                   1189:
                   1190:                        if (nchild > 2) {
                   1191:                                p->flags |= TERMP_NOSPACE;
                   1192:                                term_word(p, ",");
                   1193:                        }
                   1194:                        if (n->next->next == NULL)
                   1195:                                term_word(p, "and");
1.223     kristaps 1196:                }
                   1197:
1.273     schwarze 1198:                if (nchild > 1)
                   1199:                        term_word(p, "functions return");
                   1200:                else
                   1201:                        term_word(p, "function returns");
                   1202:
                   1203:                term_word(p, "the value\\~0 if successful;");
                   1204:        } else
                   1205:                term_word(p, "Upon successful completion,"
                   1206:                    " the value\\~0 is returned;");
1.1       kristaps 1207:
1.273     schwarze 1208:        term_word(p, "otherwise the value\\~\\-1 is returned"
                   1209:            " and the global variable");
1.1       kristaps 1210:
1.102     kristaps 1211:        term_fontpush(p, TERMFONT_UNDER);
1.1       kristaps 1212:        term_word(p, "errno");
1.102     kristaps 1213:        term_fontpop(p);
1.1       kristaps 1214:
1.264     schwarze 1215:        term_word(p, "is set to indicate the error.");
1.131     kristaps 1216:        p->flags |= TERMP_SENTENCE;
1.1       kristaps 1217:
1.68      kristaps 1218:        return(0);
1.1       kristaps 1219: }
                   1220:
                   1221: static int
                   1222: termp_ex_pre(DECL_ARGS)
                   1223: {
1.224     kristaps 1224:        int              nchild;
1.1       kristaps 1225:
1.224     kristaps 1226:        term_newln(p);
1.68      kristaps 1227:        term_word(p, "The");
1.1       kristaps 1228:
1.224     kristaps 1229:        nchild = n->nchild;
                   1230:        for (n = n->child; n; n = n->next) {
1.102     kristaps 1231:                term_fontpush(p, TERMFONT_BOLD);
1.224     kristaps 1232:                term_word(p, n->string);
1.102     kristaps 1233:                term_fontpop(p);
1.224     kristaps 1234:
                   1235:                if (nchild > 2 && n->next) {
                   1236:                        p->flags |= TERMP_NOSPACE;
1.68      kristaps 1237:                        term_word(p, ",");
1.224     kristaps 1238:                }
                   1239:
                   1240:                if (n->next && NULL == n->next->next)
                   1241:                        term_word(p, "and");
1.68      kristaps 1242:        }
                   1243:
1.224     kristaps 1244:        if (nchild > 1)
1.273     schwarze 1245:                term_word(p, "utilities exit\\~0");
1.68      kristaps 1246:        else
1.273     schwarze 1247:                term_word(p, "utility exits\\~0");
1.68      kristaps 1248:
1.273     schwarze 1249:        term_word(p, "on success, and\\~>0 if an error occurs.");
1.224     kristaps 1250:
1.131     kristaps 1251:        p->flags |= TERMP_SENTENCE;
1.68      kristaps 1252:        return(0);
1.1       kristaps 1253: }
                   1254:
                   1255: static int
                   1256: termp_nd_pre(DECL_ARGS)
                   1257: {
1.25      kristaps 1258:
1.86      kristaps 1259:        if (MDOC_BODY != n->type)
1.25      kristaps 1260:                return(1);
1.30      kristaps 1261:
1.27      kristaps 1262: #if defined(__OpenBSD__) || defined(__linux__)
1.41      kristaps 1263:        term_word(p, "\\(en");
1.23      kristaps 1264: #else
                   1265:        term_word(p, "\\(em");
                   1266: #endif
1.1       kristaps 1267:        return(1);
1.115     kristaps 1268: }
                   1269:
                   1270: static int
                   1271: termp_bl_pre(DECL_ARGS)
                   1272: {
                   1273:
                   1274:        return(MDOC_HEAD != n->type);
1.1       kristaps 1275: }
                   1276:
                   1277: static void
                   1278: termp_bl_post(DECL_ARGS)
                   1279: {
                   1280:
1.86      kristaps 1281:        if (MDOC_BLOCK == n->type)
1.1       kristaps 1282:                term_newln(p);
                   1283: }
                   1284:
                   1285: static int
                   1286: termp_xr_pre(DECL_ARGS)
                   1287: {
                   1288:
1.225     kristaps 1289:        if (NULL == (n = n->child))
1.113     kristaps 1290:                return(0);
                   1291:
1.225     kristaps 1292:        assert(MDOC_TEXT == n->type);
                   1293:        term_word(p, n->string);
1.11      kristaps 1294:
1.264     schwarze 1295:        if (NULL == (n = n->next))
1.1       kristaps 1296:                return(0);
1.225     kristaps 1297:
1.1       kristaps 1298:        p->flags |= TERMP_NOSPACE;
                   1299:        term_word(p, "(");
1.222     kristaps 1300:        p->flags |= TERMP_NOSPACE;
1.225     kristaps 1301:
                   1302:        assert(MDOC_TEXT == n->type);
                   1303:        term_word(p, n->string);
                   1304:
1.222     kristaps 1305:        p->flags |= TERMP_NOSPACE;
1.1       kristaps 1306:        term_word(p, ")");
1.86      kristaps 1307:
1.1       kristaps 1308:        return(0);
                   1309: }
                   1310:
1.143     kristaps 1311: /*
                   1312:  * This decides how to assert whitespace before any of the SYNOPSIS set
                   1313:  * of macros (which, as in the case of Ft/Fo and Ft/Fn, may contain
                   1314:  * macro combos).
                   1315:  */
                   1316: static void
                   1317: synopsis_pre(struct termp *p, const struct mdoc_node *n)
                   1318: {
1.264     schwarze 1319:        /*
1.143     kristaps 1320:         * Obviously, if we're not in a SYNOPSIS or no prior macros
                   1321:         * exist, do nothing.
                   1322:         */
1.160     kristaps 1323:        if (NULL == n->prev || ! (MDOC_SYNPRETTY & n->flags))
1.143     kristaps 1324:                return;
                   1325:
                   1326:        /*
                   1327:         * If we're the second in a pair of like elements, emit our
                   1328:         * newline and return.  UNLESS we're `Fo', `Fn', `Fn', in which
                   1329:         * case we soldier on.
                   1330:         */
1.264     schwarze 1331:        if (n->prev->tok == n->tok &&
                   1332:            MDOC_Ft != n->tok &&
                   1333:            MDOC_Fo != n->tok &&
                   1334:            MDOC_Fn != n->tok) {
1.143     kristaps 1335:                term_newln(p);
                   1336:                return;
                   1337:        }
                   1338:
                   1339:        /*
                   1340:         * If we're one of the SYNOPSIS set and non-like pair-wise after
                   1341:         * another (or Fn/Fo, which we've let slip through) then assert
                   1342:         * vertical space, else only newline and move on.
                   1343:         */
                   1344:        switch (n->prev->tok) {
1.264     schwarze 1345:        case MDOC_Fd:
1.143     kristaps 1346:                /* FALLTHROUGH */
1.264     schwarze 1347:        case MDOC_Fn:
1.143     kristaps 1348:                /* FALLTHROUGH */
1.264     schwarze 1349:        case MDOC_Fo:
1.143     kristaps 1350:                /* FALLTHROUGH */
1.264     schwarze 1351:        case MDOC_In:
1.143     kristaps 1352:                /* FALLTHROUGH */
1.264     schwarze 1353:        case MDOC_Vt:
1.143     kristaps 1354:                term_vspace(p);
                   1355:                break;
1.264     schwarze 1356:        case MDOC_Ft:
1.143     kristaps 1357:                if (MDOC_Fn != n->tok && MDOC_Fo != n->tok) {
                   1358:                        term_vspace(p);
                   1359:                        break;
                   1360:                }
                   1361:                /* FALLTHROUGH */
                   1362:        default:
                   1363:                term_newln(p);
                   1364:                break;
                   1365:        }
                   1366: }
                   1367:
1.110     kristaps 1368: static int
                   1369: termp_vt_pre(DECL_ARGS)
                   1370: {
                   1371:
1.143     kristaps 1372:        if (MDOC_ELEM == n->type) {
                   1373:                synopsis_pre(p, n);
1.245     schwarze 1374:                return(termp_under_pre(p, pair, meta, n));
1.143     kristaps 1375:        } else if (MDOC_BLOCK == n->type) {
                   1376:                synopsis_pre(p, n);
                   1377:                return(1);
                   1378:        } else if (MDOC_HEAD == n->type)
1.110     kristaps 1379:                return(0);
                   1380:
1.245     schwarze 1381:        return(termp_under_pre(p, pair, meta, n));
1.110     kristaps 1382: }
                   1383:
1.1       kristaps 1384: static int
1.69      kristaps 1385: termp_bold_pre(DECL_ARGS)
1.1       kristaps 1386: {
                   1387:
1.102     kristaps 1388:        term_fontpush(p, TERMFONT_BOLD);
1.1       kristaps 1389:        return(1);
                   1390: }
                   1391:
1.143     kristaps 1392: static int
                   1393: termp_fd_pre(DECL_ARGS)
1.1       kristaps 1394: {
                   1395:
1.143     kristaps 1396:        synopsis_pre(p, n);
1.245     schwarze 1397:        return(termp_bold_pre(p, pair, meta, n));
1.1       kristaps 1398: }
                   1399:
1.241     schwarze 1400: static void
                   1401: termp_fd_post(DECL_ARGS)
                   1402: {
                   1403:
                   1404:        term_newln(p);
                   1405: }
                   1406:
1.1       kristaps 1407: static int
                   1408: termp_sh_pre(DECL_ARGS)
                   1409: {
1.85      kristaps 1410:
                   1411:        /* No vspace between consecutive `Sh' calls. */
                   1412:
1.86      kristaps 1413:        switch (n->type) {
1.264     schwarze 1414:        case MDOC_BLOCK:
1.86      kristaps 1415:                if (n->prev && MDOC_Sh == n->prev->tok)
                   1416:                        if (NULL == n->prev->body->child)
1.65      kristaps 1417:                                break;
                   1418:                term_vspace(p);
                   1419:                break;
1.264     schwarze 1420:        case MDOC_HEAD:
1.102     kristaps 1421:                term_fontpush(p, TERMFONT_BOLD);
1.1       kristaps 1422:                break;
1.264     schwarze 1423:        case MDOC_BODY:
1.238     schwarze 1424:                p->offset = term_len(p, p->defindent);
1.239     schwarze 1425:                if (SEC_AUTHORS == n->sec)
                   1426:                        p->flags &= ~(TERMP_SPLIT|TERMP_NOSPLIT);
1.1       kristaps 1427:                break;
                   1428:        default:
                   1429:                break;
                   1430:        }
                   1431:        return(1);
                   1432: }
                   1433:
                   1434: static void
                   1435: termp_sh_post(DECL_ARGS)
                   1436: {
                   1437:
1.86      kristaps 1438:        switch (n->type) {
1.264     schwarze 1439:        case MDOC_HEAD:
1.1       kristaps 1440:                term_newln(p);
                   1441:                break;
1.264     schwarze 1442:        case MDOC_BODY:
1.1       kristaps 1443:                term_newln(p);
                   1444:                p->offset = 0;
                   1445:                break;
                   1446:        default:
                   1447:                break;
                   1448:        }
                   1449: }
                   1450:
                   1451: static int
                   1452: termp_bt_pre(DECL_ARGS)
                   1453: {
                   1454:
                   1455:        term_word(p, "is currently in beta test.");
1.131     kristaps 1456:        p->flags |= TERMP_SENTENCE;
1.81      kristaps 1457:        return(0);
1.1       kristaps 1458: }
                   1459:
                   1460: static void
                   1461: termp_lb_post(DECL_ARGS)
                   1462: {
                   1463:
1.122     kristaps 1464:        if (SEC_LIBRARY == n->sec && MDOC_LINE & n->flags)
1.81      kristaps 1465:                term_newln(p);
1.1       kristaps 1466: }
                   1467:
                   1468: static int
                   1469: termp_ud_pre(DECL_ARGS)
                   1470: {
                   1471:
                   1472:        term_word(p, "currently under development.");
1.131     kristaps 1473:        p->flags |= TERMP_SENTENCE;
1.86      kristaps 1474:        return(0);
1.1       kristaps 1475: }
                   1476:
                   1477: static int
                   1478: termp_d1_pre(DECL_ARGS)
                   1479: {
                   1480:
1.86      kristaps 1481:        if (MDOC_BLOCK != n->type)
1.1       kristaps 1482:                return(1);
                   1483:        term_newln(p);
1.238     schwarze 1484:        p->offset += term_len(p, p->defindent + 1);
1.1       kristaps 1485:        return(1);
                   1486: }
                   1487:
                   1488: static int
                   1489: termp_ft_pre(DECL_ARGS)
                   1490: {
                   1491:
1.141     kristaps 1492:        /* NB: MDOC_LINE does not effect this! */
1.143     kristaps 1493:        synopsis_pre(p, n);
1.102     kristaps 1494:        term_fontpush(p, TERMFONT_UNDER);
1.1       kristaps 1495:        return(1);
                   1496: }
                   1497:
                   1498: static int
                   1499: termp_fn_pre(DECL_ARGS)
                   1500: {
1.257     schwarze 1501:        size_t           rmargin = 0;
1.226     kristaps 1502:        int              pretty;
                   1503:
                   1504:        pretty = MDOC_SYNPRETTY & n->flags;
1.1       kristaps 1505:
1.143     kristaps 1506:        synopsis_pre(p, n);
1.139     kristaps 1507:
1.226     kristaps 1508:        if (NULL == (n = n->child))
                   1509:                return(0);
                   1510:
1.251     schwarze 1511:        if (pretty) {
                   1512:                rmargin = p->rmargin;
1.257     schwarze 1513:                p->rmargin = p->offset + term_len(p, 4);
1.263     schwarze 1514:                p->flags |= TERMP_NOBREAK | TERMP_BRIND | TERMP_HANG;
1.251     schwarze 1515:        }
                   1516:
1.226     kristaps 1517:        assert(MDOC_TEXT == n->type);
1.102     kristaps 1518:        term_fontpush(p, TERMFONT_BOLD);
1.226     kristaps 1519:        term_word(p, n->string);
1.102     kristaps 1520:        term_fontpop(p);
1.1       kristaps 1521:
1.251     schwarze 1522:        if (pretty) {
                   1523:                term_flushln(p);
1.263     schwarze 1524:                p->flags &= ~(TERMP_NOBREAK | TERMP_BRIND | TERMP_HANG);
1.251     schwarze 1525:                p->offset = p->rmargin;
                   1526:                p->rmargin = rmargin;
                   1527:        }
                   1528:
1.1       kristaps 1529:        p->flags |= TERMP_NOSPACE;
                   1530:        term_word(p, "(");
1.222     kristaps 1531:        p->flags |= TERMP_NOSPACE;
1.1       kristaps 1532:
1.226     kristaps 1533:        for (n = n->next; n; n = n->next) {
                   1534:                assert(MDOC_TEXT == n->type);
1.102     kristaps 1535:                term_fontpush(p, TERMFONT_UNDER);
1.255     schwarze 1536:                if (pretty)
                   1537:                        p->flags |= TERMP_NBRWORD;
1.226     kristaps 1538:                term_word(p, n->string);
1.102     kristaps 1539:                term_fontpop(p);
                   1540:
1.226     kristaps 1541:                if (n->next) {
1.222     kristaps 1542:                        p->flags |= TERMP_NOSPACE;
1.1       kristaps 1543:                        term_word(p, ",");
1.222     kristaps 1544:                }
1.1       kristaps 1545:        }
                   1546:
1.222     kristaps 1547:        p->flags |= TERMP_NOSPACE;
1.1       kristaps 1548:        term_word(p, ")");
                   1549:
1.226     kristaps 1550:        if (pretty) {
1.222     kristaps 1551:                p->flags |= TERMP_NOSPACE;
1.1       kristaps 1552:                term_word(p, ";");
1.251     schwarze 1553:                term_flushln(p);
1.222     kristaps 1554:        }
1.1       kristaps 1555:
                   1556:        return(0);
                   1557: }
                   1558:
                   1559: static int
                   1560: termp_fa_pre(DECL_ARGS)
                   1561: {
1.86      kristaps 1562:        const struct mdoc_node  *nn;
1.1       kristaps 1563:
1.86      kristaps 1564:        if (n->parent->tok != MDOC_Fo) {
1.102     kristaps 1565:                term_fontpush(p, TERMFONT_UNDER);
1.1       kristaps 1566:                return(1);
                   1567:        }
                   1568:
1.86      kristaps 1569:        for (nn = n->child; nn; nn = nn->next) {
1.102     kristaps 1570:                term_fontpush(p, TERMFONT_UNDER);
1.258     schwarze 1571:                p->flags |= TERMP_NBRWORD;
1.86      kristaps 1572:                term_word(p, nn->string);
1.102     kristaps 1573:                term_fontpop(p);
                   1574:
1.256     schwarze 1575:                if (nn->next || (n->next && n->next->tok == MDOC_Fa)) {
1.222     kristaps 1576:                        p->flags |= TERMP_NOSPACE;
1.1       kristaps 1577:                        term_word(p, ",");
1.222     kristaps 1578:                }
1.1       kristaps 1579:        }
                   1580:
                   1581:        return(0);
                   1582: }
                   1583:
                   1584: static int
                   1585: termp_bd_pre(DECL_ARGS)
                   1586: {
1.272     schwarze 1587:        size_t                   tabwidth, lm, len, rm, rmax;
1.244     schwarze 1588:        struct mdoc_node        *nn;
1.1       kristaps 1589:
1.86      kristaps 1590:        if (MDOC_BLOCK == n->type) {
1.151     kristaps 1591:                print_bvspace(p, n, n);
1.54      kristaps 1592:                return(1);
1.116     kristaps 1593:        } else if (MDOC_HEAD == n->type)
                   1594:                return(0);
1.1       kristaps 1595:
1.202     kristaps 1596:        if (n->norm->Bd.offs)
                   1597:                p->offset += a2offs(p, n->norm->Bd.offs);
1.85      kristaps 1598:
                   1599:        /*
                   1600:         * If -ragged or -filled are specified, the block does nothing
                   1601:         * but change the indentation.  If -unfilled or -literal are
                   1602:         * specified, text is printed exactly as entered in the display:
                   1603:         * for macro lines, a newline is appended to the line.  Blank
                   1604:         * lines are allowed.
                   1605:         */
1.264     schwarze 1606:
                   1607:        if (DISP_literal != n->norm->Bd.type &&
1.272     schwarze 1608:            DISP_unfilled != n->norm->Bd.type &&
                   1609:            DISP_centered != n->norm->Bd.type)
1.1       kristaps 1610:                return(1);
                   1611:
1.129     schwarze 1612:        tabwidth = p->tabwidth;
1.208     kristaps 1613:        if (DISP_literal == n->norm->Bd.type)
                   1614:                p->tabwidth = term_len(p, 8);
                   1615:
1.272     schwarze 1616:        lm = p->offset;
1.119     kristaps 1617:        rm = p->rmargin;
                   1618:        rmax = p->maxrmargin;
1.120     kristaps 1619:        p->rmargin = p->maxrmargin = TERM_MAXMARGIN;
1.118     kristaps 1620:
1.86      kristaps 1621:        for (nn = n->child; nn; nn = nn->next) {
1.272     schwarze 1622:                if (DISP_centered == n->norm->Bd.type) {
                   1623:                        if (MDOC_TEXT == nn->type) {
                   1624:                                len = term_strlen(p, nn->string);
                   1625:                                p->offset = len >= rm ? 0 :
                   1626:                                    lm + len >= rm ? rm - len :
                   1627:                                    (lm + rm - len) / 2;
                   1628:                        } else
                   1629:                                p->offset = lm;
                   1630:                }
1.245     schwarze 1631:                print_mdoc_node(p, pair, meta, nn);
1.190     kristaps 1632:                /*
                   1633:                 * If the printed node flushes its own line, then we
                   1634:                 * needn't do it here as well.  This is hacky, but the
                   1635:                 * notion of selective eoln whitespace is pretty dumb
                   1636:                 * anyway, so don't sweat it.
                   1637:                 */
                   1638:                switch (nn->tok) {
1.264     schwarze 1639:                case MDOC_Sm:
1.193     kristaps 1640:                        /* FALLTHROUGH */
1.264     schwarze 1641:                case MDOC_br:
1.190     kristaps 1642:                        /* FALLTHROUGH */
1.264     schwarze 1643:                case MDOC_sp:
1.190     kristaps 1644:                        /* FALLTHROUGH */
1.264     schwarze 1645:                case MDOC_Bl:
1.196     kristaps 1646:                        /* FALLTHROUGH */
1.264     schwarze 1647:                case MDOC_D1:
1.196     kristaps 1648:                        /* FALLTHROUGH */
1.264     schwarze 1649:                case MDOC_Dl:
1.190     kristaps 1650:                        /* FALLTHROUGH */
1.264     schwarze 1651:                case MDOC_Lp:
1.190     kristaps 1652:                        /* FALLTHROUGH */
1.264     schwarze 1653:                case MDOC_Pp:
1.190     kristaps 1654:                        continue;
                   1655:                default:
                   1656:                        break;
                   1657:                }
1.180     schwarze 1658:                if (nn->next && nn->next->line == nn->line)
                   1659:                        continue;
                   1660:                term_flushln(p);
                   1661:                p->flags |= TERMP_NOSPACE;
1.1       kristaps 1662:        }
1.147     kristaps 1663:
1.129     schwarze 1664:        p->tabwidth = tabwidth;
1.119     kristaps 1665:        p->rmargin = rm;
                   1666:        p->maxrmargin = rmax;
1.1       kristaps 1667:        return(0);
                   1668: }
                   1669:
                   1670: static void
                   1671: termp_bd_post(DECL_ARGS)
                   1672: {
1.119     kristaps 1673:        size_t           rm, rmax;
1.1       kristaps 1674:
1.264     schwarze 1675:        if (MDOC_BODY != n->type)
1.1       kristaps 1676:                return;
1.118     kristaps 1677:
1.119     kristaps 1678:        rm = p->rmargin;
                   1679:        rmax = p->maxrmargin;
1.118     kristaps 1680:
1.264     schwarze 1681:        if (DISP_literal == n->norm->Bd.type ||
                   1682:            DISP_unfilled == n->norm->Bd.type)
1.120     kristaps 1683:                p->rmargin = p->maxrmargin = TERM_MAXMARGIN;
1.118     kristaps 1684:
1.60      kristaps 1685:        p->flags |= TERMP_NOSPACE;
1.130     schwarze 1686:        term_newln(p);
1.118     kristaps 1687:
1.119     kristaps 1688:        p->rmargin = rm;
                   1689:        p->maxrmargin = rmax;
1.1       kristaps 1690: }
                   1691:
1.211     kristaps 1692: static int
                   1693: termp_bx_pre(DECL_ARGS)
1.1       kristaps 1694: {
                   1695:
1.211     kristaps 1696:        if (NULL != (n = n->child)) {
                   1697:                term_word(p, n->string);
                   1698:                p->flags |= TERMP_NOSPACE;
                   1699:                term_word(p, "BSD");
                   1700:        } else {
                   1701:                term_word(p, "BSD");
                   1702:                return(0);
                   1703:        }
                   1704:
                   1705:        if (NULL != (n = n->next)) {
                   1706:                p->flags |= TERMP_NOSPACE;
1.213     kristaps 1707:                term_word(p, "-");
1.1       kristaps 1708:                p->flags |= TERMP_NOSPACE;
1.213     kristaps 1709:                term_word(p, n->string);
1.211     kristaps 1710:        }
                   1711:
                   1712:        return(0);
1.1       kristaps 1713: }
                   1714:
                   1715: static int
1.26      kristaps 1716: termp_xx_pre(DECL_ARGS)
1.1       kristaps 1717: {
1.26      kristaps 1718:        const char      *pp;
1.218     schwarze 1719:        int              flags;
1.1       kristaps 1720:
1.26      kristaps 1721:        pp = NULL;
1.86      kristaps 1722:        switch (n->tok) {
1.264     schwarze 1723:        case MDOC_Bsx:
1.194     schwarze 1724:                pp = "BSD/OS";
1.26      kristaps 1725:                break;
1.264     schwarze 1726:        case MDOC_Dx:
1.100     kristaps 1727:                pp = "DragonFly";
1.26      kristaps 1728:                break;
1.264     schwarze 1729:        case MDOC_Fx:
1.26      kristaps 1730:                pp = "FreeBSD";
                   1731:                break;
1.264     schwarze 1732:        case MDOC_Nx:
1.26      kristaps 1733:                pp = "NetBSD";
                   1734:                break;
1.264     schwarze 1735:        case MDOC_Ox:
1.26      kristaps 1736:                pp = "OpenBSD";
                   1737:                break;
1.264     schwarze 1738:        case MDOC_Ux:
1.26      kristaps 1739:                pp = "UNIX";
                   1740:                break;
                   1741:        default:
1.246     schwarze 1742:                abort();
                   1743:                /* NOTREACHED */
1.26      kristaps 1744:        }
1.1       kristaps 1745:
1.26      kristaps 1746:        term_word(p, pp);
1.214     kristaps 1747:        if (n->child) {
1.218     schwarze 1748:                flags = p->flags;
1.214     kristaps 1749:                p->flags |= TERMP_KEEP;
                   1750:                term_word(p, n->child->string);
1.218     schwarze 1751:                p->flags = flags;
1.214     kristaps 1752:        }
                   1753:        return(0);
1.1       kristaps 1754: }
                   1755:
                   1756: static void
                   1757: termp_pf_post(DECL_ARGS)
                   1758: {
                   1759:
                   1760:        p->flags |= TERMP_NOSPACE;
                   1761: }
                   1762:
                   1763: static int
                   1764: termp_ss_pre(DECL_ARGS)
                   1765: {
                   1766:
1.86      kristaps 1767:        switch (n->type) {
1.264     schwarze 1768:        case MDOC_BLOCK:
1.1       kristaps 1769:                term_newln(p);
1.86      kristaps 1770:                if (n->prev)
1.1       kristaps 1771:                        term_vspace(p);
                   1772:                break;
1.264     schwarze 1773:        case MDOC_HEAD:
1.102     kristaps 1774:                term_fontpush(p, TERMFONT_BOLD);
1.238     schwarze 1775:                p->offset = term_len(p, (p->defindent+1)/2);
1.1       kristaps 1776:                break;
1.274     schwarze 1777:        case MDOC_BODY:
                   1778:                p->offset = term_len(p, p->defindent);
                   1779:                break;
1.1       kristaps 1780:        default:
                   1781:                break;
                   1782:        }
                   1783:
                   1784:        return(1);
                   1785: }
                   1786:
                   1787: static void
                   1788: termp_ss_post(DECL_ARGS)
                   1789: {
                   1790:
1.274     schwarze 1791:        if (n->type == MDOC_HEAD || n->type == MDOC_BODY)
1.1       kristaps 1792:                term_newln(p);
                   1793: }
                   1794:
                   1795: static int
                   1796: termp_cd_pre(DECL_ARGS)
                   1797: {
                   1798:
1.143     kristaps 1799:        synopsis_pre(p, n);
1.102     kristaps 1800:        term_fontpush(p, TERMFONT_BOLD);
1.1       kristaps 1801:        return(1);
                   1802: }
                   1803:
                   1804: static int
                   1805: termp_in_pre(DECL_ARGS)
                   1806: {
1.142     schwarze 1807:
1.143     kristaps 1808:        synopsis_pre(p, n);
1.1       kristaps 1809:
1.160     kristaps 1810:        if (MDOC_SYNPRETTY & n->flags && MDOC_LINE & n->flags) {
1.138     kristaps 1811:                term_fontpush(p, TERMFONT_BOLD);
1.22      kristaps 1812:                term_word(p, "#include");
1.138     kristaps 1813:                term_word(p, "<");
                   1814:        } else {
                   1815:                term_word(p, "<");
                   1816:                term_fontpush(p, TERMFONT_UNDER);
                   1817:        }
1.22      kristaps 1818:
1.1       kristaps 1819:        p->flags |= TERMP_NOSPACE;
                   1820:        return(1);
                   1821: }
                   1822:
                   1823: static void
                   1824: termp_in_post(DECL_ARGS)
                   1825: {
                   1826:
1.160     kristaps 1827:        if (MDOC_SYNPRETTY & n->flags)
1.138     kristaps 1828:                term_fontpush(p, TERMFONT_BOLD);
                   1829:
1.79      kristaps 1830:        p->flags |= TERMP_NOSPACE;
1.1       kristaps 1831:        term_word(p, ">");
                   1832:
1.160     kristaps 1833:        if (MDOC_SYNPRETTY & n->flags)
1.138     kristaps 1834:                term_fontpop(p);
1.1       kristaps 1835: }
                   1836:
                   1837: static int
1.45      kristaps 1838: termp_sp_pre(DECL_ARGS)
                   1839: {
1.91      kristaps 1840:        size_t           i, len;
1.45      kristaps 1841:
1.86      kristaps 1842:        switch (n->tok) {
1.264     schwarze 1843:        case MDOC_sp:
1.157     kristaps 1844:                len = n->child ? a2height(p, n->child->string) : 1;
1.76      kristaps 1845:                break;
1.264     schwarze 1846:        case MDOC_br:
1.76      kristaps 1847:                len = 0;
                   1848:                break;
                   1849:        default:
                   1850:                len = 1;
                   1851:                break;
1.45      kristaps 1852:        }
                   1853:
                   1854:        if (0 == len)
                   1855:                term_newln(p);
                   1856:        for (i = 0; i < len; i++)
                   1857:                term_vspace(p);
                   1858:
                   1859:        return(0);
                   1860: }
                   1861:
                   1862: static int
1.268     schwarze 1863: termp_es_pre(DECL_ARGS)
                   1864: {
                   1865:
                   1866:        return(0);
                   1867: }
                   1868:
                   1869: static int
1.188     kristaps 1870: termp_quote_pre(DECL_ARGS)
1.1       kristaps 1871: {
                   1872:
1.203     kristaps 1873:        if (MDOC_BODY != n->type && MDOC_ELEM != n->type)
1.1       kristaps 1874:                return(1);
                   1875:
1.188     kristaps 1876:        switch (n->tok) {
1.264     schwarze 1877:        case MDOC_Ao:
1.188     kristaps 1878:                /* FALLTHROUGH */
1.264     schwarze 1879:        case MDOC_Aq:
1.188     kristaps 1880:                term_word(p, "<");
                   1881:                break;
1.264     schwarze 1882:        case MDOC_Bro:
1.188     kristaps 1883:                /* FALLTHROUGH */
1.264     schwarze 1884:        case MDOC_Brq:
1.188     kristaps 1885:                term_word(p, "{");
                   1886:                break;
1.264     schwarze 1887:        case MDOC_Oo:
1.188     kristaps 1888:                /* FALLTHROUGH */
1.264     schwarze 1889:        case MDOC_Op:
1.188     kristaps 1890:                /* FALLTHROUGH */
1.264     schwarze 1891:        case MDOC_Bo:
1.188     kristaps 1892:                /* FALLTHROUGH */
1.264     schwarze 1893:        case MDOC_Bq:
1.188     kristaps 1894:                term_word(p, "[");
                   1895:                break;
1.264     schwarze 1896:        case MDOC_Do:
1.188     kristaps 1897:                /* FALLTHROUGH */
1.264     schwarze 1898:        case MDOC_Dq:
1.249     schwarze 1899:                term_word(p, "\\(lq");
1.188     kristaps 1900:                break;
1.268     schwarze 1901:        case MDOC_En:
                   1902:                if (NULL == n->norm->Es ||
                   1903:                    NULL == n->norm->Es->child)
                   1904:                        return(1);
                   1905:                term_word(p, n->norm->Es->child->string);
                   1906:                break;
1.264     schwarze 1907:        case MDOC_Eo:
1.237     schwarze 1908:                break;
1.264     schwarze 1909:        case MDOC_Po:
1.188     kristaps 1910:                /* FALLTHROUGH */
1.264     schwarze 1911:        case MDOC_Pq:
1.188     kristaps 1912:                term_word(p, "(");
                   1913:                break;
1.264     schwarze 1914:        case MDOC__T:
1.205     kristaps 1915:                /* FALLTHROUGH */
1.264     schwarze 1916:        case MDOC_Qo:
1.188     kristaps 1917:                /* FALLTHROUGH */
1.264     schwarze 1918:        case MDOC_Qq:
1.188     kristaps 1919:                term_word(p, "\"");
                   1920:                break;
1.264     schwarze 1921:        case MDOC_Ql:
1.188     kristaps 1922:                /* FALLTHROUGH */
1.264     schwarze 1923:        case MDOC_So:
1.188     kristaps 1924:                /* FALLTHROUGH */
1.264     schwarze 1925:        case MDOC_Sq:
1.249     schwarze 1926:                term_word(p, "\\(oq");
1.188     kristaps 1927:                break;
                   1928:        default:
                   1929:                abort();
                   1930:                /* NOTREACHED */
                   1931:        }
1.1       kristaps 1932:
                   1933:        p->flags |= TERMP_NOSPACE;
                   1934:        return(1);
                   1935: }
                   1936:
                   1937: static void
1.188     kristaps 1938: termp_quote_post(DECL_ARGS)
1.1       kristaps 1939: {
                   1940:
1.203     kristaps 1941:        if (MDOC_BODY != n->type && MDOC_ELEM != n->type)
1.1       kristaps 1942:                return;
                   1943:
1.268     schwarze 1944:        if (MDOC_En != n->tok)
                   1945:                p->flags |= TERMP_NOSPACE;
1.1       kristaps 1946:
1.188     kristaps 1947:        switch (n->tok) {
1.264     schwarze 1948:        case MDOC_Ao:
1.188     kristaps 1949:                /* FALLTHROUGH */
1.264     schwarze 1950:        case MDOC_Aq:
1.188     kristaps 1951:                term_word(p, ">");
                   1952:                break;
1.264     schwarze 1953:        case MDOC_Bro:
1.188     kristaps 1954:                /* FALLTHROUGH */
1.264     schwarze 1955:        case MDOC_Brq:
1.188     kristaps 1956:                term_word(p, "}");
                   1957:                break;
1.264     schwarze 1958:        case MDOC_Oo:
1.188     kristaps 1959:                /* FALLTHROUGH */
1.264     schwarze 1960:        case MDOC_Op:
1.188     kristaps 1961:                /* FALLTHROUGH */
1.264     schwarze 1962:        case MDOC_Bo:
1.188     kristaps 1963:                /* FALLTHROUGH */
1.264     schwarze 1964:        case MDOC_Bq:
1.188     kristaps 1965:                term_word(p, "]");
                   1966:                break;
1.264     schwarze 1967:        case MDOC_Do:
1.188     kristaps 1968:                /* FALLTHROUGH */
1.264     schwarze 1969:        case MDOC_Dq:
1.249     schwarze 1970:                term_word(p, "\\(rq");
1.268     schwarze 1971:                break;
                   1972:        case MDOC_En:
                   1973:                if (NULL != n->norm->Es &&
                   1974:                    NULL != n->norm->Es->child &&
                   1975:                    NULL != n->norm->Es->child->next) {
                   1976:                        p->flags |= TERMP_NOSPACE;
                   1977:                        term_word(p, n->norm->Es->child->next->string);
                   1978:                }
1.237     schwarze 1979:                break;
1.264     schwarze 1980:        case MDOC_Eo:
1.188     kristaps 1981:                break;
1.264     schwarze 1982:        case MDOC_Po:
1.188     kristaps 1983:                /* FALLTHROUGH */
1.264     schwarze 1984:        case MDOC_Pq:
1.188     kristaps 1985:                term_word(p, ")");
                   1986:                break;
1.264     schwarze 1987:        case MDOC__T:
1.205     kristaps 1988:                /* FALLTHROUGH */
1.264     schwarze 1989:        case MDOC_Qo:
1.188     kristaps 1990:                /* FALLTHROUGH */
1.264     schwarze 1991:        case MDOC_Qq:
1.188     kristaps 1992:                term_word(p, "\"");
                   1993:                break;
1.264     schwarze 1994:        case MDOC_Ql:
1.188     kristaps 1995:                /* FALLTHROUGH */
1.264     schwarze 1996:        case MDOC_So:
1.188     kristaps 1997:                /* FALLTHROUGH */
1.264     schwarze 1998:        case MDOC_Sq:
1.249     schwarze 1999:                term_word(p, "\\(cq");
1.188     kristaps 2000:                break;
                   2001:        default:
                   2002:                abort();
                   2003:                /* NOTREACHED */
                   2004:        }
1.1       kristaps 2005: }
                   2006:
                   2007: static int
                   2008: termp_fo_pre(DECL_ARGS)
                   2009: {
1.257     schwarze 2010:        size_t           rmargin = 0;
1.256     schwarze 2011:        int              pretty;
                   2012:
                   2013:        pretty = MDOC_SYNPRETTY & n->flags;
1.1       kristaps 2014:
1.141     kristaps 2015:        if (MDOC_BLOCK == n->type) {
1.143     kristaps 2016:                synopsis_pre(p, n);
1.141     kristaps 2017:                return(1);
                   2018:        } else if (MDOC_BODY == n->type) {
1.256     schwarze 2019:                if (pretty) {
                   2020:                        rmargin = p->rmargin;
1.257     schwarze 2021:                        p->rmargin = p->offset + term_len(p, 4);
1.263     schwarze 2022:                        p->flags |= TERMP_NOBREAK | TERMP_BRIND |
                   2023:                                        TERMP_HANG;
1.256     schwarze 2024:                }
1.33      kristaps 2025:                p->flags |= TERMP_NOSPACE;
1.1       kristaps 2026:                term_word(p, "(");
1.222     kristaps 2027:                p->flags |= TERMP_NOSPACE;
1.256     schwarze 2028:                if (pretty) {
                   2029:                        term_flushln(p);
1.263     schwarze 2030:                        p->flags &= ~(TERMP_NOBREAK | TERMP_BRIND |
                   2031:                                        TERMP_HANG);
1.256     schwarze 2032:                        p->offset = p->rmargin;
                   2033:                        p->rmargin = rmargin;
                   2034:                }
1.1       kristaps 2035:                return(1);
1.256     schwarze 2036:        }
1.141     kristaps 2037:
1.169     kristaps 2038:        if (NULL == n->child)
                   2039:                return(0);
                   2040:
1.141     kristaps 2041:        /* XXX: we drop non-initial arguments as per groff. */
1.1       kristaps 2042:
1.141     kristaps 2043:        assert(n->child->string);
1.102     kristaps 2044:        term_fontpush(p, TERMFONT_BOLD);
1.141     kristaps 2045:        term_word(p, n->child->string);
1.1       kristaps 2046:        return(0);
                   2047: }
                   2048:
                   2049: static void
                   2050: termp_fo_post(DECL_ARGS)
                   2051: {
                   2052:
1.264     schwarze 2053:        if (MDOC_BODY != n->type)
1.143     kristaps 2054:                return;
                   2055:
1.222     kristaps 2056:        p->flags |= TERMP_NOSPACE;
1.143     kristaps 2057:        term_word(p, ")");
                   2058:
1.222     kristaps 2059:        if (MDOC_SYNPRETTY & n->flags) {
                   2060:                p->flags |= TERMP_NOSPACE;
1.143     kristaps 2061:                term_word(p, ";");
1.256     schwarze 2062:                term_flushln(p);
1.222     kristaps 2063:        }
1.1       kristaps 2064: }
                   2065:
                   2066: static int
                   2067: termp_bf_pre(DECL_ARGS)
                   2068: {
                   2069:
1.86      kristaps 2070:        if (MDOC_HEAD == n->type)
1.1       kristaps 2071:                return(0);
1.244     schwarze 2072:        else if (MDOC_BODY != n->type)
1.1       kristaps 2073:                return(1);
                   2074:
1.264     schwarze 2075:        if (FONT_Em == n->norm->Bf.font)
1.102     kristaps 2076:                term_fontpush(p, TERMFONT_UNDER);
1.264     schwarze 2077:        else if (FONT_Sy == n->norm->Bf.font)
1.102     kristaps 2078:                term_fontpush(p, TERMFONT_BOLD);
1.264     schwarze 2079:        else
1.102     kristaps 2080:                term_fontpush(p, TERMFONT_NONE);
1.1       kristaps 2081:
                   2082:        return(1);
                   2083: }
                   2084:
                   2085: static int
                   2086: termp_sm_pre(DECL_ARGS)
                   2087: {
                   2088:
1.269     schwarze 2089:        if (NULL == n->child)
                   2090:                p->flags ^= TERMP_NONOSPACE;
                   2091:        else if (0 == strcmp("on", n->child->string))
1.1       kristaps 2092:                p->flags &= ~TERMP_NONOSPACE;
1.269     schwarze 2093:        else
1.1       kristaps 2094:                p->flags |= TERMP_NONOSPACE;
1.269     schwarze 2095:
                   2096:        if (p->col && ! (TERMP_NONOSPACE & p->flags))
                   2097:                p->flags &= ~TERMP_NOSPACE;
1.1       kristaps 2098:
                   2099:        return(0);
                   2100: }
                   2101:
                   2102: static int
                   2103: termp_ap_pre(DECL_ARGS)
                   2104: {
                   2105:
                   2106:        p->flags |= TERMP_NOSPACE;
1.188     kristaps 2107:        term_word(p, "'");
1.1       kristaps 2108:        p->flags |= TERMP_NOSPACE;
                   2109:        return(1);
                   2110: }
                   2111:
                   2112: static void
                   2113: termp____post(DECL_ARGS)
                   2114: {
1.184     kristaps 2115:
                   2116:        /*
                   2117:         * Handle lists of authors.  In general, print each followed by
                   2118:         * a comma.  Don't print the comma if there are only two
                   2119:         * authors.
                   2120:         */
                   2121:        if (MDOC__A == n->tok && n->next && MDOC__A == n->next->tok)
                   2122:                if (NULL == n->next->next || MDOC__A != n->next->next->tok)
                   2123:                        if (NULL == n->prev || MDOC__A != n->prev->tok)
                   2124:                                return;
1.1       kristaps 2125:
1.95      kristaps 2126:        /* TODO: %U. */
                   2127:
1.187     kristaps 2128:        if (NULL == n->parent || MDOC_Rs != n->parent->tok)
                   2129:                return;
                   2130:
1.222     kristaps 2131:        p->flags |= TERMP_NOSPACE;
1.186     kristaps 2132:        if (NULL == n->next) {
                   2133:                term_word(p, ".");
                   2134:                p->flags |= TERMP_SENTENCE;
                   2135:        } else
                   2136:                term_word(p, ",");
1.1       kristaps 2137: }
                   2138:
                   2139: static int
1.102     kristaps 2140: termp_li_pre(DECL_ARGS)
                   2141: {
                   2142:
                   2143:        term_fontpush(p, TERMFONT_NONE);
                   2144:        return(1);
                   2145: }
                   2146:
                   2147: static int
1.1       kristaps 2148: termp_lk_pre(DECL_ARGS)
                   2149: {
1.240     schwarze 2150:        const struct mdoc_node *link, *descr;
1.1       kristaps 2151:
1.240     schwarze 2152:        if (NULL == (link = n->child))
                   2153:                return(0);
1.181     kristaps 2154:
1.240     schwarze 2155:        if (NULL != (descr = link->next)) {
                   2156:                term_fontpush(p, TERMFONT_UNDER);
                   2157:                while (NULL != descr) {
                   2158:                        term_word(p, descr->string);
                   2159:                        descr = descr->next;
                   2160:                }
                   2161:                p->flags |= TERMP_NOSPACE;
                   2162:                term_word(p, ":");
                   2163:                term_fontpop(p);
                   2164:        }
1.1       kristaps 2165:
1.102     kristaps 2166:        term_fontpush(p, TERMFONT_BOLD);
1.240     schwarze 2167:        term_word(p, link->string);
1.102     kristaps 2168:        term_fontpop(p);
1.12      kristaps 2169:
1.1       kristaps 2170:        return(0);
                   2171: }
                   2172:
1.159     schwarze 2173: static int
                   2174: termp_bk_pre(DECL_ARGS)
                   2175: {
                   2176:
1.161     schwarze 2177:        switch (n->type) {
1.264     schwarze 2178:        case MDOC_BLOCK:
1.166     kristaps 2179:                break;
1.264     schwarze 2180:        case MDOC_HEAD:
1.161     schwarze 2181:                return(0);
1.264     schwarze 2182:        case MDOC_BODY:
1.200     schwarze 2183:                if (n->parent->args || 0 == n->prev->nchild)
                   2184:                        p->flags |= TERMP_PREKEEP;
1.166     kristaps 2185:                break;
1.161     schwarze 2186:        default:
                   2187:                abort();
1.166     kristaps 2188:                /* NOTREACHED */
1.161     schwarze 2189:        }
1.166     kristaps 2190:
                   2191:        return(1);
1.159     schwarze 2192: }
                   2193:
                   2194: static void
                   2195: termp_bk_post(DECL_ARGS)
                   2196: {
                   2197:
1.253     schwarze 2198:        if (MDOC_BODY == n->type)
1.161     schwarze 2199:                p->flags &= ~(TERMP_KEEP | TERMP_PREKEEP);
1.203     kristaps 2200: }
                   2201:
                   2202: static void
                   2203: termp__t_post(DECL_ARGS)
                   2204: {
                   2205:
                   2206:        /*
                   2207:         * If we're in an `Rs' and there's a journal present, then quote
                   2208:         * us instead of underlining us (for disambiguation).
                   2209:         */
1.217     schwarze 2210:        if (n->parent && MDOC_Rs == n->parent->tok &&
1.264     schwarze 2211:            n->parent->norm->Rs.quote_T)
1.245     schwarze 2212:                termp_quote_post(p, pair, meta, n);
1.203     kristaps 2213:
1.245     schwarze 2214:        termp____post(p, pair, meta, n);
1.203     kristaps 2215: }
                   2216:
                   2217: static int
                   2218: termp__t_pre(DECL_ARGS)
                   2219: {
                   2220:
                   2221:        /*
                   2222:         * If we're in an `Rs' and there's a journal present, then quote
                   2223:         * us instead of underlining us (for disambiguation).
                   2224:         */
                   2225:        if (n->parent && MDOC_Rs == n->parent->tok &&
1.264     schwarze 2226:            n->parent->norm->Rs.quote_T)
1.245     schwarze 2227:                return(termp_quote_pre(p, pair, meta, n));
1.203     kristaps 2228:
                   2229:        term_fontpush(p, TERMFONT_UNDER);
                   2230:        return(1);
1.159     schwarze 2231: }
1.1       kristaps 2232:
                   2233: static int
1.69      kristaps 2234: termp_under_pre(DECL_ARGS)
1.1       kristaps 2235: {
                   2236:
1.102     kristaps 2237:        term_fontpush(p, TERMFONT_UNDER);
1.84      kristaps 2238:        return(1);
                   2239: }

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