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Annotation of mandoc/mdoc_term.c, Revision 1.273

1.273   ! schwarze    1: /*     $Id: mdoc_term.c,v 1.272 2014/07/29 13:58:18 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:
1.266     schwarze  479:        mandoc_asprintf(&title, "%s(%s)", meta->title, meta->msec);
1.235     schwarze  480:        titlen = term_strlen(p, title);
1.1       kristaps  481:
1.235     schwarze  482:        p->flags |= TERMP_NOBREAK | TERMP_NOSPACE;
1.250     schwarze  483:        p->trailspace = 1;
1.1       kristaps  484:        p->offset = 0;
1.267     schwarze  485:        p->rmargin = 2 * (titlen+1) + vollen < p->maxrmargin ?
                    486:            (p->maxrmargin - vollen + term_len(p, 1)) / 2 :
                    487:            p->maxrmargin - vollen;
1.1       kristaps  488:
                    489:        term_word(p, title);
                    490:        term_flushln(p);
                    491:
1.235     schwarze  492:        p->flags |= TERMP_NOSPACE;
1.1       kristaps  493:        p->offset = p->rmargin;
1.267     schwarze  494:        p->rmargin = p->offset + vollen + titlen < p->maxrmargin ?
1.235     schwarze  495:            p->maxrmargin - titlen : p->maxrmargin;
1.1       kristaps  496:
1.267     schwarze  497:        term_word(p, volume);
1.1       kristaps  498:        term_flushln(p);
                    499:
                    500:        p->flags &= ~TERMP_NOBREAK;
1.250     schwarze  501:        p->trailspace = 0;
1.235     schwarze  502:        if (p->rmargin + titlen <= p->maxrmargin) {
                    503:                p->flags |= TERMP_NOSPACE;
                    504:                p->offset = p->rmargin;
                    505:                p->rmargin = p->maxrmargin;
                    506:                term_word(p, title);
                    507:                term_flushln(p);
                    508:        }
1.1       kristaps  509:
1.235     schwarze  510:        p->flags &= ~TERMP_NOSPACE;
1.9       kristaps  511:        p->offset = 0;
1.1       kristaps  512:        p->rmargin = p->maxrmargin;
1.266     schwarze  513:        free(title);
1.267     schwarze  514:        free(volume);
1.1       kristaps  515: }
                    516:
                    517: static size_t
1.157     kristaps  518: a2height(const struct termp *p, const char *v)
1.1       kristaps  519: {
1.92      kristaps  520:        struct roffsu    su;
1.91      kristaps  521:
1.231     kristaps  522:
1.157     kristaps  523:        assert(v);
                    524:        if ( ! a2roffsu(v, &su, SCALE_VS))
1.231     kristaps  525:                SCALE_VS_INIT(&su, atoi(v));
1.91      kristaps  526:
1.157     kristaps  527:        return(term_vspan(p, &su));
1.91      kristaps  528: }
1.1       kristaps  529:
1.91      kristaps  530: static size_t
1.157     kristaps  531: a2width(const struct termp *p, const char *v)
1.91      kristaps  532: {
1.92      kristaps  533:        struct roffsu    su;
1.1       kristaps  534:
1.154     kristaps  535:        assert(v);
                    536:        if ( ! a2roffsu(v, &su, SCALE_MAX))
1.157     kristaps  537:                SCALE_HS_INIT(&su, term_strlen(p, v));
1.1       kristaps  538:
1.157     kristaps  539:        return(term_hspan(p, &su));
1.1       kristaps  540: }
                    541:
                    542: static size_t
1.157     kristaps  543: a2offs(const struct termp *p, const char *v)
1.1       kristaps  544: {
1.92      kristaps  545:        struct roffsu    su;
1.1       kristaps  546:
1.148     kristaps  547:        if ('\0' == *v)
1.91      kristaps  548:                return(0);
1.148     kristaps  549:        else if (0 == strcmp(v, "left"))
1.19      kristaps  550:                return(0);
1.148     kristaps  551:        else if (0 == strcmp(v, "indent"))
1.238     schwarze  552:                return(term_len(p, p->defindent + 1));
1.148     kristaps  553:        else if (0 == strcmp(v, "indent-two"))
1.238     schwarze  554:                return(term_len(p, (p->defindent + 1) * 2));
1.148     kristaps  555:        else if ( ! a2roffsu(v, &su, SCALE_MAX))
1.157     kristaps  556:                SCALE_HS_INIT(&su, term_strlen(p, v));
1.10      kristaps  557:
1.157     kristaps  558:        return(term_hspan(p, &su));
1.1       kristaps  559: }
                    560:
1.108     kristaps  561: /*
                    562:  * Determine how much space to print out before block elements of `It'
                    563:  * (and thus `Bl') and `Bd'.  And then go ahead and print that space,
                    564:  * too.
                    565:  */
1.54      kristaps  566: static void
1.264     schwarze  567: print_bvspace(struct termp *p,
                    568:        const struct mdoc_node *bl,
                    569:        const struct mdoc_node *n)
1.1       kristaps  570: {
1.86      kristaps  571:        const struct mdoc_node  *nn;
1.236     schwarze  572:
                    573:        assert(n);
1.1       kristaps  574:
                    575:        term_newln(p);
1.150     kristaps  576:
1.202     kristaps  577:        if (MDOC_Bd == bl->tok && bl->norm->Bd.comp)
1.150     kristaps  578:                return;
1.202     kristaps  579:        if (MDOC_Bl == bl->tok && bl->norm->Bl.comp)
1.54      kristaps  580:                return;
                    581:
1.85      kristaps  582:        /* Do not vspace directly after Ss/Sh. */
1.1       kristaps  583:
1.86      kristaps  584:        for (nn = n; nn; nn = nn->parent) {
                    585:                if (MDOC_BLOCK != nn->type)
1.1       kristaps  586:                        continue;
1.86      kristaps  587:                if (MDOC_Ss == nn->tok)
1.54      kristaps  588:                        return;
1.86      kristaps  589:                if (MDOC_Sh == nn->tok)
1.54      kristaps  590:                        return;
1.86      kristaps  591:                if (NULL == nn->prev)
1.1       kristaps  592:                        continue;
                    593:                break;
                    594:        }
                    595:
1.85      kristaps  596:        /* A `-column' does not assert vspace within the list. */
1.54      kristaps  597:
1.202     kristaps  598:        if (MDOC_Bl == bl->tok && LIST_column == bl->norm->Bl.type)
1.86      kristaps  599:                if (n->prev && MDOC_It == n->prev->tok)
1.54      kristaps  600:                        return;
                    601:
1.85      kristaps  602:        /* A `-diag' without body does not vspace. */
                    603:
1.202     kristaps  604:        if (MDOC_Bl == bl->tok && LIST_diag == bl->norm->Bl.type)
1.86      kristaps  605:                if (n->prev && MDOC_It == n->prev->tok) {
                    606:                        assert(n->prev->body);
                    607:                        if (NULL == n->prev->body->child)
1.55      kristaps  608:                                return;
                    609:                }
                    610:
1.54      kristaps  611:        term_vspace(p);
1.260     schwarze  612: }
                    613:
                    614:
                    615: static int
                    616: termp_ll_pre(DECL_ARGS)
                    617: {
                    618:
1.261     schwarze  619:        term_setwidth(p, n->nchild ? n->child->string : NULL);
1.260     schwarze  620:        return(0);
1.1       kristaps  621: }
                    622:
                    623: static int
                    624: termp_it_pre(DECL_ARGS)
                    625: {
1.86      kristaps  626:        const struct mdoc_node *bl, *nn;
1.265     schwarze  627:        char                    buf[24];
1.264     schwarze  628:        int                     i;
                    629:        size_t                  width, offset, ncols, dcol;
1.126     kristaps  630:        enum mdoc_list          type;
1.1       kristaps  631:
1.86      kristaps  632:        if (MDOC_BLOCK == n->type) {
1.151     kristaps  633:                print_bvspace(p, n->parent->parent, n);
1.54      kristaps  634:                return(1);
                    635:        }
1.1       kristaps  636:
1.86      kristaps  637:        bl = n->parent->parent->parent;
1.202     kristaps  638:        type = bl->norm->Bl.type;
1.1       kristaps  639:
1.264     schwarze  640:        /*
1.108     kristaps  641:         * First calculate width and offset.  This is pretty easy unless
                    642:         * we're a -column list, in which case all prior columns must
                    643:         * be accounted for.
                    644:         */
                    645:
                    646:        width = offset = 0;
                    647:
1.202     kristaps  648:        if (bl->norm->Bl.offs)
                    649:                offset = a2offs(p, bl->norm->Bl.offs);
1.152     kristaps  650:
1.1       kristaps  651:        switch (type) {
1.264     schwarze  652:        case LIST_column:
1.134     kristaps  653:                if (MDOC_HEAD == n->type)
1.1       kristaps  654:                        break;
1.155     kristaps  655:
1.105     kristaps  656:                /*
1.108     kristaps  657:                 * Imitate groff's column handling:
                    658:                 * - For each earlier column, add its width.
                    659:                 * - For less than 5 columns, add four more blanks per
                    660:                 *   column.
                    661:                 * - For exactly 5 columns, add three more blank per
                    662:                 *   column.
                    663:                 * - For more than 5 columns, add only one column.
1.105     kristaps  664:                 */
1.202     kristaps  665:                ncols = bl->norm->Bl.ncols;
1.264     schwarze  666:                dcol = ncols < 5 ? term_len(p, 4) :
                    667:                    ncols == 5 ? term_len(p, 3) : term_len(p, 1);
1.108     kristaps  668:
1.134     kristaps  669:                /*
                    670:                 * Calculate the offset by applying all prior MDOC_BODY,
                    671:                 * so we stop at the MDOC_HEAD (NULL == nn->prev).
                    672:                 */
                    673:
1.264     schwarze  674:                for (i = 0, nn = n->prev;
                    675:                    nn->prev && i < (int)ncols;
                    676:                    nn = nn->prev, i++)
                    677:                        offset += dcol + a2width(p,
                    678:                            bl->norm->Bl.cols[i]);
1.105     kristaps  679:
                    680:                /*
1.108     kristaps  681:                 * When exceeding the declared number of columns, leave
                    682:                 * the remaining widths at 0.  This will later be
                    683:                 * adjusted to the default width of 10, or, for the last
                    684:                 * column, stretched to the right margin.
1.58      kristaps  685:                 */
1.108     kristaps  686:                if (i >= (int)ncols)
                    687:                        break;
1.58      kristaps  688:
1.105     kristaps  689:                /*
1.108     kristaps  690:                 * Use the declared column widths, extended as explained
                    691:                 * in the preceding paragraph.
1.105     kristaps  692:                 */
1.202     kristaps  693:                width = a2width(p, bl->norm->Bl.cols[i]) + dcol;
1.1       kristaps  694:                break;
                    695:        default:
1.202     kristaps  696:                if (NULL == bl->norm->Bl.width)
1.108     kristaps  697:                        break;
                    698:
1.264     schwarze  699:                /*
1.108     kristaps  700:                 * Note: buffer the width by 2, which is groff's magic
                    701:                 * number for buffering single arguments.  See the above
                    702:                 * handling for column for how this changes.
                    703:                 */
1.202     kristaps  704:                assert(bl->norm->Bl.width);
                    705:                width = a2width(p, bl->norm->Bl.width) + term_len(p, 2);
1.1       kristaps  706:                break;
                    707:        }
                    708:
1.264     schwarze  709:        /*
1.1       kristaps  710:         * List-type can override the width in the case of fixed-head
                    711:         * values (bullet, dash/hyphen, enum).  Tags need a non-zero
1.67      kristaps  712:         * offset.
1.1       kristaps  713:         */
                    714:
                    715:        switch (type) {
1.264     schwarze  716:        case LIST_bullet:
1.1       kristaps  717:                /* FALLTHROUGH */
1.264     schwarze  718:        case LIST_dash:
1.1       kristaps  719:                /* FALLTHROUGH */
1.264     schwarze  720:        case LIST_hyphen:
1.242     schwarze  721:                /* FALLTHROUGH */
1.264     schwarze  722:        case LIST_enum:
1.242     schwarze  723:                if (width < term_len(p, 2))
                    724:                        width = term_len(p, 2);
1.17      kristaps  725:                break;
1.264     schwarze  726:        case LIST_hang:
1.39      kristaps  727:                if (0 == width)
1.157     kristaps  728:                        width = term_len(p, 8);
1.39      kristaps  729:                break;
1.264     schwarze  730:        case LIST_column:
1.49      kristaps  731:                /* FALLTHROUGH */
1.264     schwarze  732:        case LIST_tag:
1.1       kristaps  733:                if (0 == width)
1.157     kristaps  734:                        width = term_len(p, 10);
1.1       kristaps  735:                break;
                    736:        default:
                    737:                break;
                    738:        }
                    739:
1.264     schwarze  740:        /*
1.17      kristaps  741:         * Whitespace control.  Inset bodies need an initial space,
                    742:         * while diagonal bodies need two.
1.1       kristaps  743:         */
                    744:
1.51      kristaps  745:        p->flags |= TERMP_NOSPACE;
                    746:
1.1       kristaps  747:        switch (type) {
1.264     schwarze  748:        case LIST_diag:
1.86      kristaps  749:                if (MDOC_BODY == n->type)
1.62      kristaps  750:                        term_word(p, "\\ \\ ");
1.51      kristaps  751:                break;
1.264     schwarze  752:        case LIST_inset:
1.270     schwarze  753:                if (MDOC_BODY == n->type && n->parent->head->nchild)
1.51      kristaps  754:                        term_word(p, "\\ ");
1.1       kristaps  755:                break;
                    756:        default:
                    757:                break;
                    758:        }
                    759:
1.51      kristaps  760:        p->flags |= TERMP_NOSPACE;
                    761:
1.1       kristaps  762:        switch (type) {
1.264     schwarze  763:        case LIST_diag:
1.86      kristaps  764:                if (MDOC_HEAD == n->type)
1.102     kristaps  765:                        term_fontpush(p, TERMFONT_BOLD);
1.1       kristaps  766:                break;
                    767:        default:
                    768:                break;
                    769:        }
                    770:
                    771:        /*
1.109     kristaps  772:         * Pad and break control.  This is the tricky part.  These flags
                    773:         * are documented in term_flushln() in term.c.  Note that we're
                    774:         * going to unset all of these flags in termp_it_post() when we
                    775:         * exit.
1.1       kristaps  776:         */
                    777:
                    778:        switch (type) {
1.264     schwarze  779:        case LIST_enum:
1.242     schwarze  780:                /*
                    781:                 * Weird special case.
                    782:                 * Very narrow enum lists actually hang.
                    783:                 */
                    784:                if (width == term_len(p, 2))
                    785:                        p->flags |= TERMP_HANG;
                    786:                /* FALLTHROUGH */
1.264     schwarze  787:        case LIST_bullet:
1.1       kristaps  788:                /* FALLTHROUGH */
1.264     schwarze  789:        case LIST_dash:
1.1       kristaps  790:                /* FALLTHROUGH */
1.264     schwarze  791:        case LIST_hyphen:
1.250     schwarze  792:                if (MDOC_HEAD != n->type)
                    793:                        break;
                    794:                p->flags |= TERMP_NOBREAK;
                    795:                p->trailspace = 1;
1.39      kristaps  796:                break;
1.264     schwarze  797:        case LIST_hang:
1.250     schwarze  798:                if (MDOC_HEAD != n->type)
1.59      kristaps  799:                        break;
                    800:
                    801:                /*
                    802:                 * This is ugly.  If `-hang' is specified and the body
                    803:                 * is a `Bl' or `Bd', then we want basically to nullify
                    804:                 * the "overstep" effect in term_flushln() and treat
                    805:                 * this as a `-ohang' list instead.
                    806:                 */
1.264     schwarze  807:                if (n->next->child &&
                    808:                    (MDOC_Bl == n->next->child->tok ||
                    809:                     MDOC_Bd == n->next->child->tok))
1.250     schwarze  810:                        break;
                    811:
1.263     schwarze  812:                p->flags |= TERMP_NOBREAK | TERMP_BRIND | TERMP_HANG;
1.250     schwarze  813:                p->trailspace = 1;
1.39      kristaps  814:                break;
1.264     schwarze  815:        case LIST_tag:
1.86      kristaps  816:                if (MDOC_HEAD != n->type)
1.39      kristaps  817:                        break;
1.250     schwarze  818:
1.263     schwarze  819:                p->flags |= TERMP_NOBREAK | TERMP_BRIND;
1.250     schwarze  820:                p->trailspace = 2;
                    821:
1.86      kristaps  822:                if (NULL == n->next || NULL == n->next->child)
1.39      kristaps  823:                        p->flags |= TERMP_DANGLE;
1.1       kristaps  824:                break;
1.264     schwarze  825:        case LIST_column:
1.134     kristaps  826:                if (MDOC_HEAD == n->type)
                    827:                        break;
                    828:
1.250     schwarze  829:                if (NULL == n->next) {
1.134     kristaps  830:                        p->flags &= ~TERMP_NOBREAK;
1.250     schwarze  831:                        p->trailspace = 0;
                    832:                } else {
1.134     kristaps  833:                        p->flags |= TERMP_NOBREAK;
1.250     schwarze  834:                        p->trailspace = 1;
                    835:                }
1.134     kristaps  836:
1.1       kristaps  837:                break;
1.264     schwarze  838:        case LIST_diag:
1.250     schwarze  839:                if (MDOC_HEAD != n->type)
                    840:                        break;
1.263     schwarze  841:                p->flags |= TERMP_NOBREAK | TERMP_BRIND;
1.250     schwarze  842:                p->trailspace = 1;
1.1       kristaps  843:                break;
                    844:        default:
                    845:                break;
                    846:        }
                    847:
1.264     schwarze  848:        /*
1.1       kristaps  849:         * Margin control.  Set-head-width lists have their right
                    850:         * margins shortened.  The body for these lists has the offset
                    851:         * necessarily lengthened.  Everybody gets the offset.
                    852:         */
                    853:
                    854:        p->offset += offset;
                    855:
                    856:        switch (type) {
1.264     schwarze  857:        case LIST_hang:
1.59      kristaps  858:                /*
                    859:                 * Same stipulation as above, regarding `-hang'.  We
                    860:                 * don't want to recalculate rmargin and offsets when
                    861:                 * using `Bd' or `Bl' within `-hang' overstep lists.
                    862:                 */
1.86      kristaps  863:                if (MDOC_HEAD == n->type && n->next->child &&
1.264     schwarze  864:                    (MDOC_Bl == n->next->child->tok ||
                    865:                     MDOC_Bd == n->next->child->tok))
1.59      kristaps  866:                        break;
                    867:                /* FALLTHROUGH */
1.264     schwarze  868:        case LIST_bullet:
1.1       kristaps  869:                /* FALLTHROUGH */
1.264     schwarze  870:        case LIST_dash:
1.1       kristaps  871:                /* FALLTHROUGH */
1.264     schwarze  872:        case LIST_enum:
1.1       kristaps  873:                /* FALLTHROUGH */
1.264     schwarze  874:        case LIST_hyphen:
1.1       kristaps  875:                /* FALLTHROUGH */
1.264     schwarze  876:        case LIST_tag:
1.49      kristaps  877:                assert(width);
1.86      kristaps  878:                if (MDOC_HEAD == n->type)
1.1       kristaps  879:                        p->rmargin = p->offset + width;
1.259     schwarze  880:                else {
1.1       kristaps  881:                        p->offset += width;
1.259     schwarze  882:                        if (p->rmargin < p->offset)
                    883:                                p->rmargin = p->offset;
                    884:                }
1.1       kristaps  885:                break;
1.264     schwarze  886:        case LIST_column:
1.49      kristaps  887:                assert(width);
1.1       kristaps  888:                p->rmargin = p->offset + width;
1.264     schwarze  889:                /*
1.50      kristaps  890:                 * XXX - this behaviour is not documented: the
                    891:                 * right-most column is filled to the right margin.
                    892:                 */
1.134     kristaps  893:                if (MDOC_HEAD == n->type)
                    894:                        break;
                    895:                if (NULL == n->next && p->rmargin < p->maxrmargin)
1.50      kristaps  896:                        p->rmargin = p->maxrmargin;
1.1       kristaps  897:                break;
                    898:        default:
                    899:                break;
                    900:        }
                    901:
1.264     schwarze  902:        /*
1.1       kristaps  903:         * The dash, hyphen, bullet and enum lists all have a special
1.264     schwarze  904:         * HEAD character (temporarily bold, in some cases).
1.1       kristaps  905:         */
                    906:
1.86      kristaps  907:        if (MDOC_HEAD == n->type)
1.1       kristaps  908:                switch (type) {
1.264     schwarze  909:                case LIST_bullet:
1.102     kristaps  910:                        term_fontpush(p, TERMFONT_BOLD);
1.1       kristaps  911:                        term_word(p, "\\[bu]");
1.102     kristaps  912:                        term_fontpop(p);
1.1       kristaps  913:                        break;
1.264     schwarze  914:                case LIST_dash:
1.1       kristaps  915:                        /* FALLTHROUGH */
1.264     schwarze  916:                case LIST_hyphen:
1.102     kristaps  917:                        term_fontpush(p, TERMFONT_BOLD);
1.27      kristaps  918:                        term_word(p, "\\(hy");
1.102     kristaps  919:                        term_fontpop(p);
1.1       kristaps  920:                        break;
1.264     schwarze  921:                case LIST_enum:
1.1       kristaps  922:                        (pair->ppair->ppair->count)++;
1.265     schwarze  923:                        (void)snprintf(buf, sizeof(buf), "%d.",
1.264     schwarze  924:                            pair->ppair->ppair->count);
1.1       kristaps  925:                        term_word(p, buf);
                    926:                        break;
                    927:                default:
                    928:                        break;
                    929:                }
                    930:
1.264     schwarze  931:        /*
1.1       kristaps  932:         * If we're not going to process our children, indicate so here.
                    933:         */
                    934:
                    935:        switch (type) {
1.264     schwarze  936:        case LIST_bullet:
1.1       kristaps  937:                /* FALLTHROUGH */
1.264     schwarze  938:        case LIST_item:
1.1       kristaps  939:                /* FALLTHROUGH */
1.264     schwarze  940:        case LIST_dash:
1.1       kristaps  941:                /* FALLTHROUGH */
1.264     schwarze  942:        case LIST_hyphen:
1.1       kristaps  943:                /* FALLTHROUGH */
1.264     schwarze  944:        case LIST_enum:
1.86      kristaps  945:                if (MDOC_HEAD == n->type)
1.1       kristaps  946:                        return(0);
                    947:                break;
1.264     schwarze  948:        case LIST_column:
1.134     kristaps  949:                if (MDOC_HEAD == n->type)
1.1       kristaps  950:                        return(0);
                    951:                break;
                    952:        default:
                    953:                break;
                    954:        }
                    955:
                    956:        return(1);
                    957: }
                    958:
                    959: static void
                    960: termp_it_post(DECL_ARGS)
                    961: {
1.126     kristaps  962:        enum mdoc_list     type;
1.1       kristaps  963:
1.109     kristaps  964:        if (MDOC_BLOCK == n->type)
1.1       kristaps  965:                return;
                    966:
1.202     kristaps  967:        type = n->parent->parent->parent->norm->Bl.type;
1.1       kristaps  968:
                    969:        switch (type) {
1.264     schwarze  970:        case LIST_item:
1.1       kristaps  971:                /* FALLTHROUGH */
1.264     schwarze  972:        case LIST_diag:
1.53      kristaps  973:                /* FALLTHROUGH */
1.264     schwarze  974:        case LIST_inset:
1.86      kristaps  975:                if (MDOC_BODY == n->type)
1.130     schwarze  976:                        term_newln(p);
1.1       kristaps  977:                break;
1.264     schwarze  978:        case LIST_column:
1.134     kristaps  979:                if (MDOC_BODY == n->type)
1.1       kristaps  980:                        term_flushln(p);
                    981:                break;
                    982:        default:
1.130     schwarze  983:                term_newln(p);
1.1       kristaps  984:                break;
                    985:        }
                    986:
1.264     schwarze  987:        /*
1.109     kristaps  988:         * Now that our output is flushed, we can reset our tags.  Since
                    989:         * only `It' sets these flags, we're free to assume that nobody
                    990:         * has munged them in the meanwhile.
                    991:         */
                    992:
1.263     schwarze  993:        p->flags &= ~(TERMP_NOBREAK | TERMP_BRIND |
                    994:                        TERMP_DANGLE | TERMP_HANG);
1.250     schwarze  995:        p->trailspace = 0;
1.1       kristaps  996: }
                    997:
                    998: static int
                    999: termp_nm_pre(DECL_ARGS)
                   1000: {
                   1001:
1.253     schwarze 1002:        if (MDOC_BLOCK == n->type) {
                   1003:                p->flags |= TERMP_PREKEEP;
1.164     schwarze 1004:                return(1);
1.253     schwarze 1005:        }
1.164     schwarze 1006:
                   1007:        if (MDOC_BODY == n->type) {
                   1008:                if (NULL == n->child)
                   1009:                        return(0);
1.234     schwarze 1010:                p->flags |= TERMP_NOSPACE;
1.164     schwarze 1011:                p->offset += term_len(p, 1) +
1.245     schwarze 1012:                    (NULL == n->prev->child ?
                   1013:                     term_strlen(p, meta->name) :
1.164     schwarze 1014:                     MDOC_TEXT == n->prev->child->type ?
1.245     schwarze 1015:                     term_strlen(p, n->prev->child->string) :
1.164     schwarze 1016:                     term_len(p, 5));
1.262     schwarze 1017:                if (p->rmargin < p->offset)
                   1018:                        p->rmargin = p->offset;
1.164     schwarze 1019:                return(1);
                   1020:        }
                   1021:
1.245     schwarze 1022:        if (NULL == n->child && NULL == meta->name)
1.164     schwarze 1023:                return(0);
1.125     kristaps 1024:
1.177     schwarze 1025:        if (MDOC_HEAD == n->type)
                   1026:                synopsis_pre(p, n->parent);
1.102     kristaps 1027:
1.164     schwarze 1028:        if (MDOC_HEAD == n->type && n->next->child) {
1.263     schwarze 1029:                p->flags |= TERMP_NOSPACE | TERMP_NOBREAK | TERMP_BRIND;
1.250     schwarze 1030:                p->trailspace = 1;
1.185     schwarze 1031:                p->rmargin = p->offset + term_len(p, 1);
                   1032:                if (NULL == n->child) {
1.245     schwarze 1033:                        p->rmargin += term_strlen(p, meta->name);
1.185     schwarze 1034:                } else if (MDOC_TEXT == n->child->type) {
                   1035:                        p->rmargin += term_strlen(p, n->child->string);
                   1036:                        if (n->child->next)
                   1037:                                p->flags |= TERMP_HANG;
                   1038:                } else {
                   1039:                        p->rmargin += term_len(p, 5);
                   1040:                        p->flags |= TERMP_HANG;
                   1041:                }
1.164     schwarze 1042:        }
                   1043:
1.102     kristaps 1044:        term_fontpush(p, TERMFONT_BOLD);
1.86      kristaps 1045:        if (NULL == n->child)
1.245     schwarze 1046:                term_word(p, meta->name);
1.1       kristaps 1047:        return(1);
                   1048: }
                   1049:
1.164     schwarze 1050: static void
                   1051: termp_nm_post(DECL_ARGS)
                   1052: {
                   1053:
1.253     schwarze 1054:        if (MDOC_BLOCK == n->type) {
                   1055:                p->flags &= ~(TERMP_KEEP | TERMP_PREKEEP);
                   1056:        } else if (MDOC_HEAD == n->type && n->next->child) {
1.164     schwarze 1057:                term_flushln(p);
1.263     schwarze 1058:                p->flags &= ~(TERMP_NOBREAK | TERMP_BRIND | TERMP_HANG);
1.250     schwarze 1059:                p->trailspace = 0;
1.234     schwarze 1060:        } else if (MDOC_BODY == n->type && n->child)
1.164     schwarze 1061:                term_flushln(p);
                   1062: }
                   1063:
1.1       kristaps 1064: static int
                   1065: termp_fl_pre(DECL_ARGS)
                   1066: {
                   1067:
1.102     kristaps 1068:        term_fontpush(p, TERMFONT_BOLD);
1.1       kristaps 1069:        term_word(p, "\\-");
1.103     kristaps 1070:
                   1071:        if (n->child)
1.114     kristaps 1072:                p->flags |= TERMP_NOSPACE;
                   1073:        else if (n->next && n->next->line == n->line)
1.103     kristaps 1074:                p->flags |= TERMP_NOSPACE;
                   1075:
1.1       kristaps 1076:        return(1);
                   1077: }
                   1078:
                   1079: static int
1.184     kristaps 1080: termp__a_pre(DECL_ARGS)
                   1081: {
                   1082:
                   1083:        if (n->prev && MDOC__A == n->prev->tok)
                   1084:                if (NULL == n->next || MDOC__A != n->next->tok)
                   1085:                        term_word(p, "and");
                   1086:
                   1087:        return(1);
                   1088: }
                   1089:
                   1090: static int
1.61      kristaps 1091: termp_an_pre(DECL_ARGS)
                   1092: {
                   1093:
1.86      kristaps 1094:        if (NULL == n->child)
1.61      kristaps 1095:                return(1);
                   1096:
                   1097:        /*
1.85      kristaps 1098:         * If not in the AUTHORS section, `An -split' will cause
                   1099:         * newlines to occur before the author name.  If in the AUTHORS
                   1100:         * section, by default, the first `An' invocation is nosplit,
                   1101:         * then all subsequent ones, regardless of whether interspersed
                   1102:         * with other macros/text, are split.  -split, in this case,
                   1103:         * will override the condition of the implied first -nosplit.
1.61      kristaps 1104:         */
1.264     schwarze 1105:
1.86      kristaps 1106:        if (n->sec == SEC_AUTHORS) {
1.61      kristaps 1107:                if ( ! (TERMP_ANPREC & p->flags)) {
                   1108:                        if (TERMP_SPLIT & p->flags)
                   1109:                                term_newln(p);
                   1110:                        return(1);
                   1111:                }
                   1112:                if (TERMP_NOSPLIT & p->flags)
                   1113:                        return(1);
                   1114:                term_newln(p);
                   1115:                return(1);
                   1116:        }
                   1117:
                   1118:        if (TERMP_SPLIT & p->flags)
                   1119:                term_newln(p);
                   1120:
                   1121:        return(1);
                   1122: }
                   1123:
                   1124: static void
                   1125: termp_an_post(DECL_ARGS)
                   1126: {
                   1127:
1.86      kristaps 1128:        if (n->child) {
                   1129:                if (SEC_AUTHORS == n->sec)
1.61      kristaps 1130:                        p->flags |= TERMP_ANPREC;
                   1131:                return;
                   1132:        }
                   1133:
1.202     kristaps 1134:        if (AUTH_split == n->norm->An.auth) {
1.61      kristaps 1135:                p->flags &= ~TERMP_NOSPLIT;
                   1136:                p->flags |= TERMP_SPLIT;
1.202     kristaps 1137:        } else if (AUTH_nosplit == n->norm->An.auth) {
1.61      kristaps 1138:                p->flags &= ~TERMP_SPLIT;
                   1139:                p->flags |= TERMP_NOSPLIT;
                   1140:        }
                   1141:
                   1142: }
                   1143:
                   1144: static int
1.1       kristaps 1145: termp_ns_pre(DECL_ARGS)
                   1146: {
                   1147:
1.215     kristaps 1148:        if ( ! (MDOC_LINE & n->flags))
                   1149:                p->flags |= TERMP_NOSPACE;
1.1       kristaps 1150:        return(1);
                   1151: }
                   1152:
                   1153: static int
                   1154: termp_rs_pre(DECL_ARGS)
                   1155: {
                   1156:
1.86      kristaps 1157:        if (SEC_SEE_ALSO != n->sec)
1.80      kristaps 1158:                return(1);
1.86      kristaps 1159:        if (MDOC_BLOCK == n->type && n->prev)
1.1       kristaps 1160:                term_vspace(p);
                   1161:        return(1);
                   1162: }
                   1163:
                   1164: static int
                   1165: termp_rv_pre(DECL_ARGS)
                   1166: {
1.223     kristaps 1167:        int              nchild;
1.1       kristaps 1168:
                   1169:        term_newln(p);
                   1170:
1.223     kristaps 1171:        nchild = n->nchild;
1.273   ! schwarze 1172:        if (nchild > 0) {
        !          1173:                term_word(p, "The");
1.224     kristaps 1174:
1.273   ! schwarze 1175:                for (n = n->child; n; n = n->next) {
        !          1176:                        term_fontpush(p, TERMFONT_BOLD);
        !          1177:                        term_word(p, n->string);
        !          1178:                        term_fontpop(p);
1.223     kristaps 1179:
                   1180:                        p->flags |= TERMP_NOSPACE;
1.273   ! schwarze 1181:                        term_word(p, "()");
        !          1182:
        !          1183:                        if (n->next == NULL)
        !          1184:                                continue;
        !          1185:
        !          1186:                        if (nchild > 2) {
        !          1187:                                p->flags |= TERMP_NOSPACE;
        !          1188:                                term_word(p, ",");
        !          1189:                        }
        !          1190:                        if (n->next->next == NULL)
        !          1191:                                term_word(p, "and");
1.223     kristaps 1192:                }
                   1193:
1.273   ! schwarze 1194:                if (nchild > 1)
        !          1195:                        term_word(p, "functions return");
        !          1196:                else
        !          1197:                        term_word(p, "function returns");
        !          1198:
        !          1199:                term_word(p, "the value\\~0 if successful;");
        !          1200:        } else
        !          1201:                term_word(p, "Upon successful completion,"
        !          1202:                    " the value\\~0 is returned;");
1.1       kristaps 1203:
1.273   ! schwarze 1204:        term_word(p, "otherwise the value\\~\\-1 is returned"
        !          1205:            " and the global variable");
1.1       kristaps 1206:
1.102     kristaps 1207:        term_fontpush(p, TERMFONT_UNDER);
1.1       kristaps 1208:        term_word(p, "errno");
1.102     kristaps 1209:        term_fontpop(p);
1.1       kristaps 1210:
1.264     schwarze 1211:        term_word(p, "is set to indicate the error.");
1.131     kristaps 1212:        p->flags |= TERMP_SENTENCE;
1.1       kristaps 1213:
1.68      kristaps 1214:        return(0);
1.1       kristaps 1215: }
                   1216:
                   1217: static int
                   1218: termp_ex_pre(DECL_ARGS)
                   1219: {
1.224     kristaps 1220:        int              nchild;
1.1       kristaps 1221:
1.224     kristaps 1222:        term_newln(p);
1.68      kristaps 1223:        term_word(p, "The");
1.1       kristaps 1224:
1.224     kristaps 1225:        nchild = n->nchild;
                   1226:        for (n = n->child; n; n = n->next) {
1.102     kristaps 1227:                term_fontpush(p, TERMFONT_BOLD);
1.224     kristaps 1228:                term_word(p, n->string);
1.102     kristaps 1229:                term_fontpop(p);
1.224     kristaps 1230:
                   1231:                if (nchild > 2 && n->next) {
                   1232:                        p->flags |= TERMP_NOSPACE;
1.68      kristaps 1233:                        term_word(p, ",");
1.224     kristaps 1234:                }
                   1235:
                   1236:                if (n->next && NULL == n->next->next)
                   1237:                        term_word(p, "and");
1.68      kristaps 1238:        }
                   1239:
1.224     kristaps 1240:        if (nchild > 1)
1.273   ! schwarze 1241:                term_word(p, "utilities exit\\~0");
1.68      kristaps 1242:        else
1.273   ! schwarze 1243:                term_word(p, "utility exits\\~0");
1.68      kristaps 1244:
1.273   ! schwarze 1245:        term_word(p, "on success, and\\~>0 if an error occurs.");
1.224     kristaps 1246:
1.131     kristaps 1247:        p->flags |= TERMP_SENTENCE;
1.68      kristaps 1248:        return(0);
1.1       kristaps 1249: }
                   1250:
                   1251: static int
                   1252: termp_nd_pre(DECL_ARGS)
                   1253: {
1.25      kristaps 1254:
1.86      kristaps 1255:        if (MDOC_BODY != n->type)
1.25      kristaps 1256:                return(1);
1.30      kristaps 1257:
1.27      kristaps 1258: #if defined(__OpenBSD__) || defined(__linux__)
1.41      kristaps 1259:        term_word(p, "\\(en");
1.23      kristaps 1260: #else
                   1261:        term_word(p, "\\(em");
                   1262: #endif
1.1       kristaps 1263:        return(1);
1.115     kristaps 1264: }
                   1265:
                   1266: static int
                   1267: termp_bl_pre(DECL_ARGS)
                   1268: {
                   1269:
                   1270:        return(MDOC_HEAD != n->type);
1.1       kristaps 1271: }
                   1272:
                   1273: static void
                   1274: termp_bl_post(DECL_ARGS)
                   1275: {
                   1276:
1.86      kristaps 1277:        if (MDOC_BLOCK == n->type)
1.1       kristaps 1278:                term_newln(p);
                   1279: }
                   1280:
                   1281: static int
                   1282: termp_xr_pre(DECL_ARGS)
                   1283: {
                   1284:
1.225     kristaps 1285:        if (NULL == (n = n->child))
1.113     kristaps 1286:                return(0);
                   1287:
1.225     kristaps 1288:        assert(MDOC_TEXT == n->type);
                   1289:        term_word(p, n->string);
1.11      kristaps 1290:
1.264     schwarze 1291:        if (NULL == (n = n->next))
1.1       kristaps 1292:                return(0);
1.225     kristaps 1293:
1.1       kristaps 1294:        p->flags |= TERMP_NOSPACE;
                   1295:        term_word(p, "(");
1.222     kristaps 1296:        p->flags |= TERMP_NOSPACE;
1.225     kristaps 1297:
                   1298:        assert(MDOC_TEXT == n->type);
                   1299:        term_word(p, n->string);
                   1300:
1.222     kristaps 1301:        p->flags |= TERMP_NOSPACE;
1.1       kristaps 1302:        term_word(p, ")");
1.86      kristaps 1303:
1.1       kristaps 1304:        return(0);
                   1305: }
                   1306:
1.143     kristaps 1307: /*
                   1308:  * This decides how to assert whitespace before any of the SYNOPSIS set
                   1309:  * of macros (which, as in the case of Ft/Fo and Ft/Fn, may contain
                   1310:  * macro combos).
                   1311:  */
                   1312: static void
                   1313: synopsis_pre(struct termp *p, const struct mdoc_node *n)
                   1314: {
1.264     schwarze 1315:        /*
1.143     kristaps 1316:         * Obviously, if we're not in a SYNOPSIS or no prior macros
                   1317:         * exist, do nothing.
                   1318:         */
1.160     kristaps 1319:        if (NULL == n->prev || ! (MDOC_SYNPRETTY & n->flags))
1.143     kristaps 1320:                return;
                   1321:
                   1322:        /*
                   1323:         * If we're the second in a pair of like elements, emit our
                   1324:         * newline and return.  UNLESS we're `Fo', `Fn', `Fn', in which
                   1325:         * case we soldier on.
                   1326:         */
1.264     schwarze 1327:        if (n->prev->tok == n->tok &&
                   1328:            MDOC_Ft != n->tok &&
                   1329:            MDOC_Fo != n->tok &&
                   1330:            MDOC_Fn != n->tok) {
1.143     kristaps 1331:                term_newln(p);
                   1332:                return;
                   1333:        }
                   1334:
                   1335:        /*
                   1336:         * If we're one of the SYNOPSIS set and non-like pair-wise after
                   1337:         * another (or Fn/Fo, which we've let slip through) then assert
                   1338:         * vertical space, else only newline and move on.
                   1339:         */
                   1340:        switch (n->prev->tok) {
1.264     schwarze 1341:        case MDOC_Fd:
1.143     kristaps 1342:                /* FALLTHROUGH */
1.264     schwarze 1343:        case MDOC_Fn:
1.143     kristaps 1344:                /* FALLTHROUGH */
1.264     schwarze 1345:        case MDOC_Fo:
1.143     kristaps 1346:                /* FALLTHROUGH */
1.264     schwarze 1347:        case MDOC_In:
1.143     kristaps 1348:                /* FALLTHROUGH */
1.264     schwarze 1349:        case MDOC_Vt:
1.143     kristaps 1350:                term_vspace(p);
                   1351:                break;
1.264     schwarze 1352:        case MDOC_Ft:
1.143     kristaps 1353:                if (MDOC_Fn != n->tok && MDOC_Fo != n->tok) {
                   1354:                        term_vspace(p);
                   1355:                        break;
                   1356:                }
                   1357:                /* FALLTHROUGH */
                   1358:        default:
                   1359:                term_newln(p);
                   1360:                break;
                   1361:        }
                   1362: }
                   1363:
1.110     kristaps 1364: static int
                   1365: termp_vt_pre(DECL_ARGS)
                   1366: {
                   1367:
1.143     kristaps 1368:        if (MDOC_ELEM == n->type) {
                   1369:                synopsis_pre(p, n);
1.245     schwarze 1370:                return(termp_under_pre(p, pair, meta, n));
1.143     kristaps 1371:        } else if (MDOC_BLOCK == n->type) {
                   1372:                synopsis_pre(p, n);
                   1373:                return(1);
                   1374:        } else if (MDOC_HEAD == n->type)
1.110     kristaps 1375:                return(0);
                   1376:
1.245     schwarze 1377:        return(termp_under_pre(p, pair, meta, n));
1.110     kristaps 1378: }
                   1379:
1.1       kristaps 1380: static int
1.69      kristaps 1381: termp_bold_pre(DECL_ARGS)
1.1       kristaps 1382: {
                   1383:
1.102     kristaps 1384:        term_fontpush(p, TERMFONT_BOLD);
1.1       kristaps 1385:        return(1);
                   1386: }
                   1387:
1.143     kristaps 1388: static int
                   1389: termp_fd_pre(DECL_ARGS)
1.1       kristaps 1390: {
                   1391:
1.143     kristaps 1392:        synopsis_pre(p, n);
1.245     schwarze 1393:        return(termp_bold_pre(p, pair, meta, n));
1.1       kristaps 1394: }
                   1395:
1.241     schwarze 1396: static void
                   1397: termp_fd_post(DECL_ARGS)
                   1398: {
                   1399:
                   1400:        term_newln(p);
                   1401: }
                   1402:
1.1       kristaps 1403: static int
                   1404: termp_sh_pre(DECL_ARGS)
                   1405: {
1.85      kristaps 1406:
                   1407:        /* No vspace between consecutive `Sh' calls. */
                   1408:
1.86      kristaps 1409:        switch (n->type) {
1.264     schwarze 1410:        case MDOC_BLOCK:
1.86      kristaps 1411:                if (n->prev && MDOC_Sh == n->prev->tok)
                   1412:                        if (NULL == n->prev->body->child)
1.65      kristaps 1413:                                break;
                   1414:                term_vspace(p);
                   1415:                break;
1.264     schwarze 1416:        case MDOC_HEAD:
1.102     kristaps 1417:                term_fontpush(p, TERMFONT_BOLD);
1.1       kristaps 1418:                break;
1.264     schwarze 1419:        case MDOC_BODY:
1.238     schwarze 1420:                p->offset = term_len(p, p->defindent);
1.239     schwarze 1421:                if (SEC_AUTHORS == n->sec)
                   1422:                        p->flags &= ~(TERMP_SPLIT|TERMP_NOSPLIT);
1.1       kristaps 1423:                break;
                   1424:        default:
                   1425:                break;
                   1426:        }
                   1427:        return(1);
                   1428: }
                   1429:
                   1430: static void
                   1431: termp_sh_post(DECL_ARGS)
                   1432: {
                   1433:
1.86      kristaps 1434:        switch (n->type) {
1.264     schwarze 1435:        case MDOC_HEAD:
1.1       kristaps 1436:                term_newln(p);
                   1437:                break;
1.264     schwarze 1438:        case MDOC_BODY:
1.1       kristaps 1439:                term_newln(p);
                   1440:                p->offset = 0;
                   1441:                break;
                   1442:        default:
                   1443:                break;
                   1444:        }
                   1445: }
                   1446:
                   1447: static int
                   1448: termp_bt_pre(DECL_ARGS)
                   1449: {
                   1450:
                   1451:        term_word(p, "is currently in beta test.");
1.131     kristaps 1452:        p->flags |= TERMP_SENTENCE;
1.81      kristaps 1453:        return(0);
1.1       kristaps 1454: }
                   1455:
                   1456: static void
                   1457: termp_lb_post(DECL_ARGS)
                   1458: {
                   1459:
1.122     kristaps 1460:        if (SEC_LIBRARY == n->sec && MDOC_LINE & n->flags)
1.81      kristaps 1461:                term_newln(p);
1.1       kristaps 1462: }
                   1463:
                   1464: static int
                   1465: termp_ud_pre(DECL_ARGS)
                   1466: {
                   1467:
                   1468:        term_word(p, "currently under development.");
1.131     kristaps 1469:        p->flags |= TERMP_SENTENCE;
1.86      kristaps 1470:        return(0);
1.1       kristaps 1471: }
                   1472:
                   1473: static int
                   1474: termp_d1_pre(DECL_ARGS)
                   1475: {
                   1476:
1.86      kristaps 1477:        if (MDOC_BLOCK != n->type)
1.1       kristaps 1478:                return(1);
                   1479:        term_newln(p);
1.238     schwarze 1480:        p->offset += term_len(p, p->defindent + 1);
1.1       kristaps 1481:        return(1);
                   1482: }
                   1483:
                   1484: static int
                   1485: termp_ft_pre(DECL_ARGS)
                   1486: {
                   1487:
1.141     kristaps 1488:        /* NB: MDOC_LINE does not effect this! */
1.143     kristaps 1489:        synopsis_pre(p, n);
1.102     kristaps 1490:        term_fontpush(p, TERMFONT_UNDER);
1.1       kristaps 1491:        return(1);
                   1492: }
                   1493:
                   1494: static int
                   1495: termp_fn_pre(DECL_ARGS)
                   1496: {
1.257     schwarze 1497:        size_t           rmargin = 0;
1.226     kristaps 1498:        int              pretty;
                   1499:
                   1500:        pretty = MDOC_SYNPRETTY & n->flags;
1.1       kristaps 1501:
1.143     kristaps 1502:        synopsis_pre(p, n);
1.139     kristaps 1503:
1.226     kristaps 1504:        if (NULL == (n = n->child))
                   1505:                return(0);
                   1506:
1.251     schwarze 1507:        if (pretty) {
                   1508:                rmargin = p->rmargin;
1.257     schwarze 1509:                p->rmargin = p->offset + term_len(p, 4);
1.263     schwarze 1510:                p->flags |= TERMP_NOBREAK | TERMP_BRIND | TERMP_HANG;
1.251     schwarze 1511:        }
                   1512:
1.226     kristaps 1513:        assert(MDOC_TEXT == n->type);
1.102     kristaps 1514:        term_fontpush(p, TERMFONT_BOLD);
1.226     kristaps 1515:        term_word(p, n->string);
1.102     kristaps 1516:        term_fontpop(p);
1.1       kristaps 1517:
1.251     schwarze 1518:        if (pretty) {
                   1519:                term_flushln(p);
1.263     schwarze 1520:                p->flags &= ~(TERMP_NOBREAK | TERMP_BRIND | TERMP_HANG);
1.251     schwarze 1521:                p->offset = p->rmargin;
                   1522:                p->rmargin = rmargin;
                   1523:        }
                   1524:
1.1       kristaps 1525:        p->flags |= TERMP_NOSPACE;
                   1526:        term_word(p, "(");
1.222     kristaps 1527:        p->flags |= TERMP_NOSPACE;
1.1       kristaps 1528:
1.226     kristaps 1529:        for (n = n->next; n; n = n->next) {
                   1530:                assert(MDOC_TEXT == n->type);
1.102     kristaps 1531:                term_fontpush(p, TERMFONT_UNDER);
1.255     schwarze 1532:                if (pretty)
                   1533:                        p->flags |= TERMP_NBRWORD;
1.226     kristaps 1534:                term_word(p, n->string);
1.102     kristaps 1535:                term_fontpop(p);
                   1536:
1.226     kristaps 1537:                if (n->next) {
1.222     kristaps 1538:                        p->flags |= TERMP_NOSPACE;
1.1       kristaps 1539:                        term_word(p, ",");
1.222     kristaps 1540:                }
1.1       kristaps 1541:        }
                   1542:
1.222     kristaps 1543:        p->flags |= TERMP_NOSPACE;
1.1       kristaps 1544:        term_word(p, ")");
                   1545:
1.226     kristaps 1546:        if (pretty) {
1.222     kristaps 1547:                p->flags |= TERMP_NOSPACE;
1.1       kristaps 1548:                term_word(p, ";");
1.251     schwarze 1549:                term_flushln(p);
1.222     kristaps 1550:        }
1.1       kristaps 1551:
                   1552:        return(0);
                   1553: }
                   1554:
                   1555: static int
                   1556: termp_fa_pre(DECL_ARGS)
                   1557: {
1.86      kristaps 1558:        const struct mdoc_node  *nn;
1.1       kristaps 1559:
1.86      kristaps 1560:        if (n->parent->tok != MDOC_Fo) {
1.102     kristaps 1561:                term_fontpush(p, TERMFONT_UNDER);
1.1       kristaps 1562:                return(1);
                   1563:        }
                   1564:
1.86      kristaps 1565:        for (nn = n->child; nn; nn = nn->next) {
1.102     kristaps 1566:                term_fontpush(p, TERMFONT_UNDER);
1.258     schwarze 1567:                p->flags |= TERMP_NBRWORD;
1.86      kristaps 1568:                term_word(p, nn->string);
1.102     kristaps 1569:                term_fontpop(p);
                   1570:
1.256     schwarze 1571:                if (nn->next || (n->next && n->next->tok == MDOC_Fa)) {
1.222     kristaps 1572:                        p->flags |= TERMP_NOSPACE;
1.1       kristaps 1573:                        term_word(p, ",");
1.222     kristaps 1574:                }
1.1       kristaps 1575:        }
                   1576:
                   1577:        return(0);
                   1578: }
                   1579:
                   1580: static int
                   1581: termp_bd_pre(DECL_ARGS)
                   1582: {
1.272     schwarze 1583:        size_t                   tabwidth, lm, len, rm, rmax;
1.244     schwarze 1584:        struct mdoc_node        *nn;
1.1       kristaps 1585:
1.86      kristaps 1586:        if (MDOC_BLOCK == n->type) {
1.151     kristaps 1587:                print_bvspace(p, n, n);
1.54      kristaps 1588:                return(1);
1.116     kristaps 1589:        } else if (MDOC_HEAD == n->type)
                   1590:                return(0);
1.1       kristaps 1591:
1.202     kristaps 1592:        if (n->norm->Bd.offs)
                   1593:                p->offset += a2offs(p, n->norm->Bd.offs);
1.85      kristaps 1594:
                   1595:        /*
                   1596:         * If -ragged or -filled are specified, the block does nothing
                   1597:         * but change the indentation.  If -unfilled or -literal are
                   1598:         * specified, text is printed exactly as entered in the display:
                   1599:         * for macro lines, a newline is appended to the line.  Blank
                   1600:         * lines are allowed.
                   1601:         */
1.264     schwarze 1602:
                   1603:        if (DISP_literal != n->norm->Bd.type &&
1.272     schwarze 1604:            DISP_unfilled != n->norm->Bd.type &&
                   1605:            DISP_centered != n->norm->Bd.type)
1.1       kristaps 1606:                return(1);
                   1607:
1.129     schwarze 1608:        tabwidth = p->tabwidth;
1.208     kristaps 1609:        if (DISP_literal == n->norm->Bd.type)
                   1610:                p->tabwidth = term_len(p, 8);
                   1611:
1.272     schwarze 1612:        lm = p->offset;
1.119     kristaps 1613:        rm = p->rmargin;
                   1614:        rmax = p->maxrmargin;
1.120     kristaps 1615:        p->rmargin = p->maxrmargin = TERM_MAXMARGIN;
1.118     kristaps 1616:
1.86      kristaps 1617:        for (nn = n->child; nn; nn = nn->next) {
1.272     schwarze 1618:                if (DISP_centered == n->norm->Bd.type) {
                   1619:                        if (MDOC_TEXT == nn->type) {
                   1620:                                len = term_strlen(p, nn->string);
                   1621:                                p->offset = len >= rm ? 0 :
                   1622:                                    lm + len >= rm ? rm - len :
                   1623:                                    (lm + rm - len) / 2;
                   1624:                        } else
                   1625:                                p->offset = lm;
                   1626:                }
1.245     schwarze 1627:                print_mdoc_node(p, pair, meta, nn);
1.190     kristaps 1628:                /*
                   1629:                 * If the printed node flushes its own line, then we
                   1630:                 * needn't do it here as well.  This is hacky, but the
                   1631:                 * notion of selective eoln whitespace is pretty dumb
                   1632:                 * anyway, so don't sweat it.
                   1633:                 */
                   1634:                switch (nn->tok) {
1.264     schwarze 1635:                case MDOC_Sm:
1.193     kristaps 1636:                        /* FALLTHROUGH */
1.264     schwarze 1637:                case MDOC_br:
1.190     kristaps 1638:                        /* FALLTHROUGH */
1.264     schwarze 1639:                case MDOC_sp:
1.190     kristaps 1640:                        /* FALLTHROUGH */
1.264     schwarze 1641:                case MDOC_Bl:
1.196     kristaps 1642:                        /* FALLTHROUGH */
1.264     schwarze 1643:                case MDOC_D1:
1.196     kristaps 1644:                        /* FALLTHROUGH */
1.264     schwarze 1645:                case MDOC_Dl:
1.190     kristaps 1646:                        /* FALLTHROUGH */
1.264     schwarze 1647:                case MDOC_Lp:
1.190     kristaps 1648:                        /* FALLTHROUGH */
1.264     schwarze 1649:                case MDOC_Pp:
1.190     kristaps 1650:                        continue;
                   1651:                default:
                   1652:                        break;
                   1653:                }
1.180     schwarze 1654:                if (nn->next && nn->next->line == nn->line)
                   1655:                        continue;
                   1656:                term_flushln(p);
                   1657:                p->flags |= TERMP_NOSPACE;
1.1       kristaps 1658:        }
1.147     kristaps 1659:
1.129     schwarze 1660:        p->tabwidth = tabwidth;
1.119     kristaps 1661:        p->rmargin = rm;
                   1662:        p->maxrmargin = rmax;
1.1       kristaps 1663:        return(0);
                   1664: }
                   1665:
                   1666: static void
                   1667: termp_bd_post(DECL_ARGS)
                   1668: {
1.119     kristaps 1669:        size_t           rm, rmax;
1.1       kristaps 1670:
1.264     schwarze 1671:        if (MDOC_BODY != n->type)
1.1       kristaps 1672:                return;
1.118     kristaps 1673:
1.119     kristaps 1674:        rm = p->rmargin;
                   1675:        rmax = p->maxrmargin;
1.118     kristaps 1676:
1.264     schwarze 1677:        if (DISP_literal == n->norm->Bd.type ||
                   1678:            DISP_unfilled == n->norm->Bd.type)
1.120     kristaps 1679:                p->rmargin = p->maxrmargin = TERM_MAXMARGIN;
1.118     kristaps 1680:
1.60      kristaps 1681:        p->flags |= TERMP_NOSPACE;
1.130     schwarze 1682:        term_newln(p);
1.118     kristaps 1683:
1.119     kristaps 1684:        p->rmargin = rm;
                   1685:        p->maxrmargin = rmax;
1.1       kristaps 1686: }
                   1687:
1.211     kristaps 1688: static int
                   1689: termp_bx_pre(DECL_ARGS)
1.1       kristaps 1690: {
                   1691:
1.211     kristaps 1692:        if (NULL != (n = n->child)) {
                   1693:                term_word(p, n->string);
                   1694:                p->flags |= TERMP_NOSPACE;
                   1695:                term_word(p, "BSD");
                   1696:        } else {
                   1697:                term_word(p, "BSD");
                   1698:                return(0);
                   1699:        }
                   1700:
                   1701:        if (NULL != (n = n->next)) {
                   1702:                p->flags |= TERMP_NOSPACE;
1.213     kristaps 1703:                term_word(p, "-");
1.1       kristaps 1704:                p->flags |= TERMP_NOSPACE;
1.213     kristaps 1705:                term_word(p, n->string);
1.211     kristaps 1706:        }
                   1707:
                   1708:        return(0);
1.1       kristaps 1709: }
                   1710:
                   1711: static int
1.26      kristaps 1712: termp_xx_pre(DECL_ARGS)
1.1       kristaps 1713: {
1.26      kristaps 1714:        const char      *pp;
1.218     schwarze 1715:        int              flags;
1.1       kristaps 1716:
1.26      kristaps 1717:        pp = NULL;
1.86      kristaps 1718:        switch (n->tok) {
1.264     schwarze 1719:        case MDOC_Bsx:
1.194     schwarze 1720:                pp = "BSD/OS";
1.26      kristaps 1721:                break;
1.264     schwarze 1722:        case MDOC_Dx:
1.100     kristaps 1723:                pp = "DragonFly";
1.26      kristaps 1724:                break;
1.264     schwarze 1725:        case MDOC_Fx:
1.26      kristaps 1726:                pp = "FreeBSD";
                   1727:                break;
1.264     schwarze 1728:        case MDOC_Nx:
1.26      kristaps 1729:                pp = "NetBSD";
                   1730:                break;
1.264     schwarze 1731:        case MDOC_Ox:
1.26      kristaps 1732:                pp = "OpenBSD";
                   1733:                break;
1.264     schwarze 1734:        case MDOC_Ux:
1.26      kristaps 1735:                pp = "UNIX";
                   1736:                break;
                   1737:        default:
1.246     schwarze 1738:                abort();
                   1739:                /* NOTREACHED */
1.26      kristaps 1740:        }
1.1       kristaps 1741:
1.26      kristaps 1742:        term_word(p, pp);
1.214     kristaps 1743:        if (n->child) {
1.218     schwarze 1744:                flags = p->flags;
1.214     kristaps 1745:                p->flags |= TERMP_KEEP;
                   1746:                term_word(p, n->child->string);
1.218     schwarze 1747:                p->flags = flags;
1.214     kristaps 1748:        }
                   1749:        return(0);
1.1       kristaps 1750: }
                   1751:
                   1752: static void
                   1753: termp_pf_post(DECL_ARGS)
                   1754: {
                   1755:
                   1756:        p->flags |= TERMP_NOSPACE;
                   1757: }
                   1758:
                   1759: static int
                   1760: termp_ss_pre(DECL_ARGS)
                   1761: {
                   1762:
1.86      kristaps 1763:        switch (n->type) {
1.264     schwarze 1764:        case MDOC_BLOCK:
1.1       kristaps 1765:                term_newln(p);
1.86      kristaps 1766:                if (n->prev)
1.1       kristaps 1767:                        term_vspace(p);
                   1768:                break;
1.264     schwarze 1769:        case MDOC_HEAD:
1.102     kristaps 1770:                term_fontpush(p, TERMFONT_BOLD);
1.238     schwarze 1771:                p->offset = term_len(p, (p->defindent+1)/2);
1.1       kristaps 1772:                break;
                   1773:        default:
                   1774:                break;
                   1775:        }
                   1776:
                   1777:        return(1);
                   1778: }
                   1779:
                   1780: static void
                   1781: termp_ss_post(DECL_ARGS)
                   1782: {
                   1783:
1.86      kristaps 1784:        if (MDOC_HEAD == n->type)
1.1       kristaps 1785:                term_newln(p);
                   1786: }
                   1787:
                   1788: static int
                   1789: termp_cd_pre(DECL_ARGS)
                   1790: {
                   1791:
1.143     kristaps 1792:        synopsis_pre(p, n);
1.102     kristaps 1793:        term_fontpush(p, TERMFONT_BOLD);
1.1       kristaps 1794:        return(1);
                   1795: }
                   1796:
                   1797: static int
                   1798: termp_in_pre(DECL_ARGS)
                   1799: {
1.142     schwarze 1800:
1.143     kristaps 1801:        synopsis_pre(p, n);
1.1       kristaps 1802:
1.160     kristaps 1803:        if (MDOC_SYNPRETTY & n->flags && MDOC_LINE & n->flags) {
1.138     kristaps 1804:                term_fontpush(p, TERMFONT_BOLD);
1.22      kristaps 1805:                term_word(p, "#include");
1.138     kristaps 1806:                term_word(p, "<");
                   1807:        } else {
                   1808:                term_word(p, "<");
                   1809:                term_fontpush(p, TERMFONT_UNDER);
                   1810:        }
1.22      kristaps 1811:
1.1       kristaps 1812:        p->flags |= TERMP_NOSPACE;
                   1813:        return(1);
                   1814: }
                   1815:
                   1816: static void
                   1817: termp_in_post(DECL_ARGS)
                   1818: {
                   1819:
1.160     kristaps 1820:        if (MDOC_SYNPRETTY & n->flags)
1.138     kristaps 1821:                term_fontpush(p, TERMFONT_BOLD);
                   1822:
1.79      kristaps 1823:        p->flags |= TERMP_NOSPACE;
1.1       kristaps 1824:        term_word(p, ">");
                   1825:
1.160     kristaps 1826:        if (MDOC_SYNPRETTY & n->flags)
1.138     kristaps 1827:                term_fontpop(p);
1.1       kristaps 1828: }
                   1829:
                   1830: static int
1.45      kristaps 1831: termp_sp_pre(DECL_ARGS)
                   1832: {
1.91      kristaps 1833:        size_t           i, len;
1.45      kristaps 1834:
1.86      kristaps 1835:        switch (n->tok) {
1.264     schwarze 1836:        case MDOC_sp:
1.157     kristaps 1837:                len = n->child ? a2height(p, n->child->string) : 1;
1.76      kristaps 1838:                break;
1.264     schwarze 1839:        case MDOC_br:
1.76      kristaps 1840:                len = 0;
                   1841:                break;
                   1842:        default:
                   1843:                len = 1;
                   1844:                break;
1.45      kristaps 1845:        }
                   1846:
                   1847:        if (0 == len)
                   1848:                term_newln(p);
                   1849:        for (i = 0; i < len; i++)
                   1850:                term_vspace(p);
                   1851:
                   1852:        return(0);
                   1853: }
                   1854:
                   1855: static int
1.268     schwarze 1856: termp_es_pre(DECL_ARGS)
                   1857: {
                   1858:
                   1859:        return(0);
                   1860: }
                   1861:
                   1862: static int
1.188     kristaps 1863: termp_quote_pre(DECL_ARGS)
1.1       kristaps 1864: {
                   1865:
1.203     kristaps 1866:        if (MDOC_BODY != n->type && MDOC_ELEM != n->type)
1.1       kristaps 1867:                return(1);
                   1868:
1.188     kristaps 1869:        switch (n->tok) {
1.264     schwarze 1870:        case MDOC_Ao:
1.188     kristaps 1871:                /* FALLTHROUGH */
1.264     schwarze 1872:        case MDOC_Aq:
1.188     kristaps 1873:                term_word(p, "<");
                   1874:                break;
1.264     schwarze 1875:        case MDOC_Bro:
1.188     kristaps 1876:                /* FALLTHROUGH */
1.264     schwarze 1877:        case MDOC_Brq:
1.188     kristaps 1878:                term_word(p, "{");
                   1879:                break;
1.264     schwarze 1880:        case MDOC_Oo:
1.188     kristaps 1881:                /* FALLTHROUGH */
1.264     schwarze 1882:        case MDOC_Op:
1.188     kristaps 1883:                /* FALLTHROUGH */
1.264     schwarze 1884:        case MDOC_Bo:
1.188     kristaps 1885:                /* FALLTHROUGH */
1.264     schwarze 1886:        case MDOC_Bq:
1.188     kristaps 1887:                term_word(p, "[");
                   1888:                break;
1.264     schwarze 1889:        case MDOC_Do:
1.188     kristaps 1890:                /* FALLTHROUGH */
1.264     schwarze 1891:        case MDOC_Dq:
1.249     schwarze 1892:                term_word(p, "\\(lq");
1.188     kristaps 1893:                break;
1.268     schwarze 1894:        case MDOC_En:
                   1895:                if (NULL == n->norm->Es ||
                   1896:                    NULL == n->norm->Es->child)
                   1897:                        return(1);
                   1898:                term_word(p, n->norm->Es->child->string);
                   1899:                break;
1.264     schwarze 1900:        case MDOC_Eo:
1.237     schwarze 1901:                break;
1.264     schwarze 1902:        case MDOC_Po:
1.188     kristaps 1903:                /* FALLTHROUGH */
1.264     schwarze 1904:        case MDOC_Pq:
1.188     kristaps 1905:                term_word(p, "(");
                   1906:                break;
1.264     schwarze 1907:        case MDOC__T:
1.205     kristaps 1908:                /* FALLTHROUGH */
1.264     schwarze 1909:        case MDOC_Qo:
1.188     kristaps 1910:                /* FALLTHROUGH */
1.264     schwarze 1911:        case MDOC_Qq:
1.188     kristaps 1912:                term_word(p, "\"");
                   1913:                break;
1.264     schwarze 1914:        case MDOC_Ql:
1.188     kristaps 1915:                /* FALLTHROUGH */
1.264     schwarze 1916:        case MDOC_So:
1.188     kristaps 1917:                /* FALLTHROUGH */
1.264     schwarze 1918:        case MDOC_Sq:
1.249     schwarze 1919:                term_word(p, "\\(oq");
1.188     kristaps 1920:                break;
                   1921:        default:
                   1922:                abort();
                   1923:                /* NOTREACHED */
                   1924:        }
1.1       kristaps 1925:
                   1926:        p->flags |= TERMP_NOSPACE;
                   1927:        return(1);
                   1928: }
                   1929:
                   1930: static void
1.188     kristaps 1931: termp_quote_post(DECL_ARGS)
1.1       kristaps 1932: {
                   1933:
1.203     kristaps 1934:        if (MDOC_BODY != n->type && MDOC_ELEM != n->type)
1.1       kristaps 1935:                return;
                   1936:
1.268     schwarze 1937:        if (MDOC_En != n->tok)
                   1938:                p->flags |= TERMP_NOSPACE;
1.1       kristaps 1939:
1.188     kristaps 1940:        switch (n->tok) {
1.264     schwarze 1941:        case MDOC_Ao:
1.188     kristaps 1942:                /* FALLTHROUGH */
1.264     schwarze 1943:        case MDOC_Aq:
1.188     kristaps 1944:                term_word(p, ">");
                   1945:                break;
1.264     schwarze 1946:        case MDOC_Bro:
1.188     kristaps 1947:                /* FALLTHROUGH */
1.264     schwarze 1948:        case MDOC_Brq:
1.188     kristaps 1949:                term_word(p, "}");
                   1950:                break;
1.264     schwarze 1951:        case MDOC_Oo:
1.188     kristaps 1952:                /* FALLTHROUGH */
1.264     schwarze 1953:        case MDOC_Op:
1.188     kristaps 1954:                /* FALLTHROUGH */
1.264     schwarze 1955:        case MDOC_Bo:
1.188     kristaps 1956:                /* FALLTHROUGH */
1.264     schwarze 1957:        case MDOC_Bq:
1.188     kristaps 1958:                term_word(p, "]");
                   1959:                break;
1.264     schwarze 1960:        case MDOC_Do:
1.188     kristaps 1961:                /* FALLTHROUGH */
1.264     schwarze 1962:        case MDOC_Dq:
1.249     schwarze 1963:                term_word(p, "\\(rq");
1.268     schwarze 1964:                break;
                   1965:        case MDOC_En:
                   1966:                if (NULL != n->norm->Es &&
                   1967:                    NULL != n->norm->Es->child &&
                   1968:                    NULL != n->norm->Es->child->next) {
                   1969:                        p->flags |= TERMP_NOSPACE;
                   1970:                        term_word(p, n->norm->Es->child->next->string);
                   1971:                }
1.237     schwarze 1972:                break;
1.264     schwarze 1973:        case MDOC_Eo:
1.188     kristaps 1974:                break;
1.264     schwarze 1975:        case MDOC_Po:
1.188     kristaps 1976:                /* FALLTHROUGH */
1.264     schwarze 1977:        case MDOC_Pq:
1.188     kristaps 1978:                term_word(p, ")");
                   1979:                break;
1.264     schwarze 1980:        case MDOC__T:
1.205     kristaps 1981:                /* FALLTHROUGH */
1.264     schwarze 1982:        case MDOC_Qo:
1.188     kristaps 1983:                /* FALLTHROUGH */
1.264     schwarze 1984:        case MDOC_Qq:
1.188     kristaps 1985:                term_word(p, "\"");
                   1986:                break;
1.264     schwarze 1987:        case MDOC_Ql:
1.188     kristaps 1988:                /* FALLTHROUGH */
1.264     schwarze 1989:        case MDOC_So:
1.188     kristaps 1990:                /* FALLTHROUGH */
1.264     schwarze 1991:        case MDOC_Sq:
1.249     schwarze 1992:                term_word(p, "\\(cq");
1.188     kristaps 1993:                break;
                   1994:        default:
                   1995:                abort();
                   1996:                /* NOTREACHED */
                   1997:        }
1.1       kristaps 1998: }
                   1999:
                   2000: static int
                   2001: termp_fo_pre(DECL_ARGS)
                   2002: {
1.257     schwarze 2003:        size_t           rmargin = 0;
1.256     schwarze 2004:        int              pretty;
                   2005:
                   2006:        pretty = MDOC_SYNPRETTY & n->flags;
1.1       kristaps 2007:
1.141     kristaps 2008:        if (MDOC_BLOCK == n->type) {
1.143     kristaps 2009:                synopsis_pre(p, n);
1.141     kristaps 2010:                return(1);
                   2011:        } else if (MDOC_BODY == n->type) {
1.256     schwarze 2012:                if (pretty) {
                   2013:                        rmargin = p->rmargin;
1.257     schwarze 2014:                        p->rmargin = p->offset + term_len(p, 4);
1.263     schwarze 2015:                        p->flags |= TERMP_NOBREAK | TERMP_BRIND |
                   2016:                                        TERMP_HANG;
1.256     schwarze 2017:                }
1.33      kristaps 2018:                p->flags |= TERMP_NOSPACE;
1.1       kristaps 2019:                term_word(p, "(");
1.222     kristaps 2020:                p->flags |= TERMP_NOSPACE;
1.256     schwarze 2021:                if (pretty) {
                   2022:                        term_flushln(p);
1.263     schwarze 2023:                        p->flags &= ~(TERMP_NOBREAK | TERMP_BRIND |
                   2024:                                        TERMP_HANG);
1.256     schwarze 2025:                        p->offset = p->rmargin;
                   2026:                        p->rmargin = rmargin;
                   2027:                }
1.1       kristaps 2028:                return(1);
1.256     schwarze 2029:        }
1.141     kristaps 2030:
1.169     kristaps 2031:        if (NULL == n->child)
                   2032:                return(0);
                   2033:
1.141     kristaps 2034:        /* XXX: we drop non-initial arguments as per groff. */
1.1       kristaps 2035:
1.141     kristaps 2036:        assert(n->child->string);
1.102     kristaps 2037:        term_fontpush(p, TERMFONT_BOLD);
1.141     kristaps 2038:        term_word(p, n->child->string);
1.1       kristaps 2039:        return(0);
                   2040: }
                   2041:
                   2042: static void
                   2043: termp_fo_post(DECL_ARGS)
                   2044: {
                   2045:
1.264     schwarze 2046:        if (MDOC_BODY != n->type)
1.143     kristaps 2047:                return;
                   2048:
1.222     kristaps 2049:        p->flags |= TERMP_NOSPACE;
1.143     kristaps 2050:        term_word(p, ")");
                   2051:
1.222     kristaps 2052:        if (MDOC_SYNPRETTY & n->flags) {
                   2053:                p->flags |= TERMP_NOSPACE;
1.143     kristaps 2054:                term_word(p, ";");
1.256     schwarze 2055:                term_flushln(p);
1.222     kristaps 2056:        }
1.1       kristaps 2057: }
                   2058:
                   2059: static int
                   2060: termp_bf_pre(DECL_ARGS)
                   2061: {
                   2062:
1.86      kristaps 2063:        if (MDOC_HEAD == n->type)
1.1       kristaps 2064:                return(0);
1.244     schwarze 2065:        else if (MDOC_BODY != n->type)
1.1       kristaps 2066:                return(1);
                   2067:
1.264     schwarze 2068:        if (FONT_Em == n->norm->Bf.font)
1.102     kristaps 2069:                term_fontpush(p, TERMFONT_UNDER);
1.264     schwarze 2070:        else if (FONT_Sy == n->norm->Bf.font)
1.102     kristaps 2071:                term_fontpush(p, TERMFONT_BOLD);
1.264     schwarze 2072:        else
1.102     kristaps 2073:                term_fontpush(p, TERMFONT_NONE);
1.1       kristaps 2074:
                   2075:        return(1);
                   2076: }
                   2077:
                   2078: static int
                   2079: termp_sm_pre(DECL_ARGS)
                   2080: {
                   2081:
1.269     schwarze 2082:        if (NULL == n->child)
                   2083:                p->flags ^= TERMP_NONOSPACE;
                   2084:        else if (0 == strcmp("on", n->child->string))
1.1       kristaps 2085:                p->flags &= ~TERMP_NONOSPACE;
1.269     schwarze 2086:        else
1.1       kristaps 2087:                p->flags |= TERMP_NONOSPACE;
1.269     schwarze 2088:
                   2089:        if (p->col && ! (TERMP_NONOSPACE & p->flags))
                   2090:                p->flags &= ~TERMP_NOSPACE;
1.1       kristaps 2091:
                   2092:        return(0);
                   2093: }
                   2094:
                   2095: static int
                   2096: termp_ap_pre(DECL_ARGS)
                   2097: {
                   2098:
                   2099:        p->flags |= TERMP_NOSPACE;
1.188     kristaps 2100:        term_word(p, "'");
1.1       kristaps 2101:        p->flags |= TERMP_NOSPACE;
                   2102:        return(1);
                   2103: }
                   2104:
                   2105: static void
                   2106: termp____post(DECL_ARGS)
                   2107: {
1.184     kristaps 2108:
                   2109:        /*
                   2110:         * Handle lists of authors.  In general, print each followed by
                   2111:         * a comma.  Don't print the comma if there are only two
                   2112:         * authors.
                   2113:         */
                   2114:        if (MDOC__A == n->tok && n->next && MDOC__A == n->next->tok)
                   2115:                if (NULL == n->next->next || MDOC__A != n->next->next->tok)
                   2116:                        if (NULL == n->prev || MDOC__A != n->prev->tok)
                   2117:                                return;
1.1       kristaps 2118:
1.95      kristaps 2119:        /* TODO: %U. */
                   2120:
1.187     kristaps 2121:        if (NULL == n->parent || MDOC_Rs != n->parent->tok)
                   2122:                return;
                   2123:
1.222     kristaps 2124:        p->flags |= TERMP_NOSPACE;
1.186     kristaps 2125:        if (NULL == n->next) {
                   2126:                term_word(p, ".");
                   2127:                p->flags |= TERMP_SENTENCE;
                   2128:        } else
                   2129:                term_word(p, ",");
1.1       kristaps 2130: }
                   2131:
                   2132: static int
1.102     kristaps 2133: termp_li_pre(DECL_ARGS)
                   2134: {
                   2135:
                   2136:        term_fontpush(p, TERMFONT_NONE);
                   2137:        return(1);
                   2138: }
                   2139:
                   2140: static int
1.1       kristaps 2141: termp_lk_pre(DECL_ARGS)
                   2142: {
1.240     schwarze 2143:        const struct mdoc_node *link, *descr;
1.1       kristaps 2144:
1.240     schwarze 2145:        if (NULL == (link = n->child))
                   2146:                return(0);
1.181     kristaps 2147:
1.240     schwarze 2148:        if (NULL != (descr = link->next)) {
                   2149:                term_fontpush(p, TERMFONT_UNDER);
                   2150:                while (NULL != descr) {
                   2151:                        term_word(p, descr->string);
                   2152:                        descr = descr->next;
                   2153:                }
                   2154:                p->flags |= TERMP_NOSPACE;
                   2155:                term_word(p, ":");
                   2156:                term_fontpop(p);
                   2157:        }
1.1       kristaps 2158:
1.102     kristaps 2159:        term_fontpush(p, TERMFONT_BOLD);
1.240     schwarze 2160:        term_word(p, link->string);
1.102     kristaps 2161:        term_fontpop(p);
1.12      kristaps 2162:
1.1       kristaps 2163:        return(0);
                   2164: }
                   2165:
1.159     schwarze 2166: static int
                   2167: termp_bk_pre(DECL_ARGS)
                   2168: {
                   2169:
1.161     schwarze 2170:        switch (n->type) {
1.264     schwarze 2171:        case MDOC_BLOCK:
1.166     kristaps 2172:                break;
1.264     schwarze 2173:        case MDOC_HEAD:
1.161     schwarze 2174:                return(0);
1.264     schwarze 2175:        case MDOC_BODY:
1.200     schwarze 2176:                if (n->parent->args || 0 == n->prev->nchild)
                   2177:                        p->flags |= TERMP_PREKEEP;
1.166     kristaps 2178:                break;
1.161     schwarze 2179:        default:
                   2180:                abort();
1.166     kristaps 2181:                /* NOTREACHED */
1.161     schwarze 2182:        }
1.166     kristaps 2183:
                   2184:        return(1);
1.159     schwarze 2185: }
                   2186:
                   2187: static void
                   2188: termp_bk_post(DECL_ARGS)
                   2189: {
                   2190:
1.253     schwarze 2191:        if (MDOC_BODY == n->type)
1.161     schwarze 2192:                p->flags &= ~(TERMP_KEEP | TERMP_PREKEEP);
1.203     kristaps 2193: }
                   2194:
                   2195: static void
                   2196: termp__t_post(DECL_ARGS)
                   2197: {
                   2198:
                   2199:        /*
                   2200:         * If we're in an `Rs' and there's a journal present, then quote
                   2201:         * us instead of underlining us (for disambiguation).
                   2202:         */
1.217     schwarze 2203:        if (n->parent && MDOC_Rs == n->parent->tok &&
1.264     schwarze 2204:            n->parent->norm->Rs.quote_T)
1.245     schwarze 2205:                termp_quote_post(p, pair, meta, n);
1.203     kristaps 2206:
1.245     schwarze 2207:        termp____post(p, pair, meta, n);
1.203     kristaps 2208: }
                   2209:
                   2210: static int
                   2211: termp__t_pre(DECL_ARGS)
                   2212: {
                   2213:
                   2214:        /*
                   2215:         * If we're in an `Rs' and there's a journal present, then quote
                   2216:         * us instead of underlining us (for disambiguation).
                   2217:         */
                   2218:        if (n->parent && MDOC_Rs == n->parent->tok &&
1.264     schwarze 2219:            n->parent->norm->Rs.quote_T)
1.245     schwarze 2220:                return(termp_quote_pre(p, pair, meta, n));
1.203     kristaps 2221:
                   2222:        term_fontpush(p, TERMFONT_UNDER);
                   2223:        return(1);
1.159     schwarze 2224: }
1.1       kristaps 2225:
                   2226: static int
1.69      kristaps 2227: termp_under_pre(DECL_ARGS)
1.1       kristaps 2228: {
                   2229:
1.102     kristaps 2230:        term_fontpush(p, TERMFONT_UNDER);
1.84      kristaps 2231:        return(1);
                   2232: }

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