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Annotation of mandoc/mdoc_term.c, Revision 1.354

1.354   ! schwarze    1: /*     $Id: mdoc_term.c,v 1.353 2017/05/05 02:06:19 schwarze Exp $ */
1.1       kristaps    2: /*
1.217     schwarze    3:  * Copyright (c) 2008, 2009, 2010, 2011 Kristaps Dzonsons <kristaps@bsd.lv>
1.339     schwarze    4:  * Copyright (c) 2010, 2012-2017 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:  *
1.314     schwarze   11:  * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHORS DISCLAIM ALL WARRANTIES
1.6       kristaps   12:  * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
1.314     schwarze   13:  * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR
1.6       kristaps   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: #include "config.h"
                     20:
1.1       kristaps   21: #include <sys/types.h>
                     22:
                     23: #include <assert.h>
                     24: #include <ctype.h>
1.302     schwarze   25: #include <limits.h>
1.118     kristaps   26: #include <stdint.h>
1.1       kristaps   27: #include <stdio.h>
                     28: #include <stdlib.h>
                     29: #include <string.h>
                     30:
1.314     schwarze   31: #include "mandoc_aux.h"
1.125     kristaps   32: #include "mandoc.h"
1.314     schwarze   33: #include "roff.h"
                     34: #include "mdoc.h"
1.92      kristaps   35: #include "out.h"
1.1       kristaps   36: #include "term.h"
1.320     schwarze   37: #include "tag.h"
1.89      kristaps   38: #include "main.h"
1.1       kristaps   39:
                     40: struct termpair {
                     41:        struct termpair  *ppair;
1.31      kristaps   42:        int               count;
1.1       kristaps   43: };
                     44:
1.31      kristaps   45: #define        DECL_ARGS struct termp *p, \
                     46:                  struct termpair *pair, \
1.316     schwarze   47:                  const struct roff_meta *meta, \
1.315     schwarze   48:                  struct roff_node *n
1.1       kristaps   49:
                     50: struct termact {
                     51:        int     (*pre)(DECL_ARGS);
                     52:        void    (*post)(DECL_ARGS);
                     53: };
                     54:
1.302     schwarze   55: static int       a2width(const struct termp *, const char *);
1.96      kristaps   56:
                     57: static void      print_bvspace(struct termp *,
1.315     schwarze   58:                        const struct roff_node *,
                     59:                        const struct roff_node *);
1.264     schwarze   60: static void      print_mdoc_node(DECL_ARGS);
1.145     kristaps   61: static void      print_mdoc_nodelist(DECL_ARGS);
1.316     schwarze   62: static void      print_mdoc_head(struct termp *, const struct roff_meta *);
                     63: static void      print_mdoc_foot(struct termp *, const struct roff_meta *);
1.264     schwarze   64: static void      synopsis_pre(struct termp *,
1.315     schwarze   65:                        const struct roff_node *);
1.96      kristaps   66:
1.31      kristaps   67: static void      termp____post(DECL_ARGS);
1.203     kristaps   68: static void      termp__t_post(DECL_ARGS);
1.31      kristaps   69: static void      termp_bd_post(DECL_ARGS);
1.159     schwarze   70: static void      termp_bk_post(DECL_ARGS);
1.31      kristaps   71: static void      termp_bl_post(DECL_ARGS);
1.306     schwarze   72: static void      termp_eo_post(DECL_ARGS);
1.241     schwarze   73: static void      termp_fd_post(DECL_ARGS);
1.31      kristaps   74: static void      termp_fo_post(DECL_ARGS);
                     75: static void      termp_in_post(DECL_ARGS);
                     76: static void      termp_it_post(DECL_ARGS);
                     77: static void      termp_lb_post(DECL_ARGS);
1.164     schwarze   78: static void      termp_nm_post(DECL_ARGS);
1.31      kristaps   79: static void      termp_pf_post(DECL_ARGS);
1.188     kristaps   80: static void      termp_quote_post(DECL_ARGS);
1.31      kristaps   81: static void      termp_sh_post(DECL_ARGS);
                     82: static void      termp_ss_post(DECL_ARGS);
1.339     schwarze   83: static void      termp_xx_post(DECL_ARGS);
1.31      kristaps   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_cd_pre(DECL_ARGS);
                     95: static int       termp_d1_pre(DECL_ARGS);
1.306     schwarze   96: static int       termp_eo_pre(DECL_ARGS);
1.334     schwarze   97: static int       termp_em_pre(DECL_ARGS);
1.323     schwarze   98: static int       termp_er_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);
1.31      kristaps  109: static int       termp_lk_pre(DECL_ARGS);
                    110: static int       termp_nd_pre(DECL_ARGS);
                    111: static int       termp_nm_pre(DECL_ARGS);
                    112: static int       termp_ns_pre(DECL_ARGS);
1.188     kristaps  113: static int       termp_quote_pre(DECL_ARGS);
1.31      kristaps  114: static int       termp_rs_pre(DECL_ARGS);
                    115: static int       termp_sh_pre(DECL_ARGS);
1.294     schwarze  116: static int       termp_skip_pre(DECL_ARGS);
1.31      kristaps  117: static int       termp_sm_pre(DECL_ARGS);
1.45      kristaps  118: static int       termp_sp_pre(DECL_ARGS);
1.31      kristaps  119: static int       termp_ss_pre(DECL_ARGS);
1.334     schwarze  120: static int       termp_sy_pre(DECL_ARGS);
1.320     schwarze  121: static int       termp_tag_pre(DECL_ARGS);
1.69      kristaps  122: static int       termp_under_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:
1.350     schwarze  127: static const struct termact __termacts[MDOC_MAX - MDOC_Dd] = {
1.1       kristaps  128:        { NULL, NULL }, /* Dd */
                    129:        { NULL, NULL }, /* Dt */
                    130:        { NULL, NULL }, /* Os */
                    131:        { termp_sh_pre, termp_sh_post }, /* Sh */
1.264     schwarze  132:        { termp_ss_pre, termp_ss_post }, /* Ss */
                    133:        { termp_sp_pre, NULL }, /* Pp */
1.241     schwarze  134:        { termp_d1_pre, termp_bl_post }, /* D1 */
                    135:        { termp_d1_pre, termp_bl_post }, /* Dl */
1.1       kristaps  136:        { termp_bd_pre, termp_bd_post }, /* Bd */
                    137:        { NULL, NULL }, /* Ed */
1.115     kristaps  138:        { termp_bl_pre, termp_bl_post }, /* Bl */
1.1       kristaps  139:        { NULL, NULL }, /* El */
                    140:        { termp_it_pre, termp_it_post }, /* It */
1.264     schwarze  141:        { termp_under_pre, NULL }, /* Ad */
1.282     schwarze  142:        { termp_an_pre, NULL }, /* An */
1.350     schwarze  143:        { termp_ap_pre, NULL }, /* Ap */
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 */
1.325     schwarze  147:        { termp_li_pre, NULL }, /* Dv */
1.323     schwarze  148:        { termp_er_pre, NULL }, /* Er */
1.320     schwarze  149:        { termp_tag_pre, 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 */
1.341     schwarze  164:        { termp_ex_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 */
1.339     schwarze  188:        { termp_xx_pre, termp_xx_post }, /* Bsx */
1.340     schwarze  189:        { NULL, NULL }, /* Bx */
1.294     schwarze  190:        { termp_skip_pre, NULL }, /* Db */
1.1       kristaps  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 */
1.334     schwarze  196:        { termp_em_pre, NULL }, /* Em */
1.306     schwarze  197:        { termp_eo_pre, termp_eo_post }, /* Eo */
1.339     schwarze  198:        { termp_xx_pre, termp_xx_post }, /* Fx */
1.176     kristaps  199:        { termp_bold_pre, NULL }, /* Ms */
1.290     schwarze  200:        { termp_li_pre, NULL }, /* No */
1.1       kristaps  201:        { termp_ns_pre, NULL }, /* Ns */
1.339     schwarze  202:        { termp_xx_pre, termp_xx_post }, /* Nx */
                    203:        { termp_xx_pre, termp_xx_post }, /* 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 */
1.334     schwarze  219:        { termp_sy_pre, NULL }, /* Sy */
1.1       kristaps  220:        { NULL, NULL }, /* Tn */
1.339     schwarze  221:        { termp_xx_pre, termp_xx_post }, /* 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 */
1.341     schwarze  230:        { NULL, NULL }, /* Bt */
1.1       kristaps  231:        { NULL, NULL }, /* Hf */
1.268     schwarze  232:        { termp_under_pre, NULL }, /* Fr */
1.341     schwarze  233:        { NULL, 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 */
1.294     schwarze  242:        { termp_skip_pre, NULL }, /* Es */
1.268     schwarze  243:        { termp_quote_pre, termp_quote_post }, /* En */
1.339     schwarze  244:        { termp_xx_pre, termp_xx_post }, /* Dx */
1.264     schwarze  245:        { NULL, termp____post }, /* %Q */
                    246:        { termp_sp_pre, NULL }, /* sp */
                    247:        { NULL, termp____post }, /* %U */
                    248:        { NULL, NULL }, /* Ta */
1.1       kristaps  249: };
1.350     schwarze  250: static const struct termact *const termacts = __termacts - MDOC_Dd;
1.1       kristaps  251:
1.322     schwarze  252: static int      fn_prio;
1.1       kristaps  253:
1.350     schwarze  254:
1.70      kristaps  255: void
1.318     schwarze  256: terminal_mdoc(void *arg, const struct roff_man *mdoc)
1.1       kristaps  257: {
1.315     schwarze  258:        struct roff_node        *n;
1.89      kristaps  259:        struct termp            *p;
1.342     schwarze  260:        size_t                   save_defindent;
1.89      kristaps  261:
                    262:        p = (struct termp *)arg;
1.111     kristaps  263:        p->overstep = 0;
1.281     schwarze  264:        p->rmargin = p->maxrmargin = p->defrmargin;
1.157     kristaps  265:        p->tabwidth = term_len(p, 5);
1.70      kristaps  266:
1.319     schwarze  267:        n = mdoc->first->child;
1.281     schwarze  268:        if (p->synopsisonly) {
                    269:                while (n != NULL) {
                    270:                        if (n->tok == MDOC_Sh && n->sec == SEC_SYNOPSIS) {
                    271:                                if (n->child->next->child != NULL)
                    272:                                        print_mdoc_nodelist(p, NULL,
1.319     schwarze  273:                                            &mdoc->meta,
                    274:                                            n->child->next->child);
1.281     schwarze  275:                                term_newln(p);
                    276:                                break;
                    277:                        }
                    278:                        n = n->next;
                    279:                }
                    280:        } else {
1.342     schwarze  281:                save_defindent = p->defindent;
1.281     schwarze  282:                if (p->defindent == 0)
                    283:                        p->defindent = 5;
1.319     schwarze  284:                term_begin(p, print_mdoc_head, print_mdoc_foot,
                    285:                    &mdoc->meta);
1.337     schwarze  286:                while (n != NULL && n->flags & NODE_NOPRT)
                    287:                        n = n->next;
1.281     schwarze  288:                if (n != NULL) {
                    289:                        if (n->tok != MDOC_Sh)
                    290:                                term_vspace(p);
1.319     schwarze  291:                        print_mdoc_nodelist(p, NULL, &mdoc->meta, n);
1.281     schwarze  292:                }
                    293:                term_end(p);
1.342     schwarze  294:                p->defindent = save_defindent;
1.271     schwarze  295:        }
1.1       kristaps  296: }
                    297:
1.3       kristaps  298: static void
1.102     kristaps  299: print_mdoc_nodelist(DECL_ARGS)
1.1       kristaps  300: {
                    301:
1.304     schwarze  302:        while (n != NULL) {
                    303:                print_mdoc_node(p, pair, meta, n);
                    304:                n = n->next;
                    305:        }
1.1       kristaps  306: }
                    307:
1.3       kristaps  308: static void
1.102     kristaps  309: print_mdoc_node(DECL_ARGS)
1.1       kristaps  310: {
1.102     kristaps  311:        int              chld;
1.1       kristaps  312:        struct termpair  npair;
1.30      kristaps  313:        size_t           offset, rmargin;
1.1       kristaps  314:
1.337     schwarze  315:        if (n->flags & NODE_NOPRT)
                    316:                return;
                    317:
1.70      kristaps  318:        chld = 1;
1.29      kristaps  319:        offset = p->offset;
1.30      kristaps  320:        rmargin = p->rmargin;
1.338     schwarze  321:        n->flags &= ~NODE_ENDED;
1.305     schwarze  322:        n->prev_font = p->fonti;
1.29      kristaps  323:
1.97      kristaps  324:        memset(&npair, 0, sizeof(struct termpair));
1.1       kristaps  325:        npair.ppair = pair;
1.172     kristaps  326:
                    327:        /*
                    328:         * Keeps only work until the end of a line.  If a keep was
                    329:         * invoked in a prior line, revert it to PREKEEP.
                    330:         */
                    331:
1.338     schwarze  332:        if (p->flags & TERMP_KEEP && n->flags & NODE_LINE) {
1.307     schwarze  333:                p->flags &= ~TERMP_KEEP;
                    334:                p->flags |= TERMP_PREKEEP;
1.172     kristaps  335:        }
1.197     schwarze  336:
                    337:        /*
1.217     schwarze  338:         * After the keep flags have been set up, we may now
                    339:         * produce output.  Note that some pre-handlers do so.
                    340:         */
                    341:
                    342:        switch (n->type) {
1.314     schwarze  343:        case ROFFT_TEXT:
1.338     schwarze  344:                if (' ' == *n->string && NODE_LINE & n->flags)
1.217     schwarze  345:                        term_newln(p);
1.338     schwarze  346:                if (NODE_DELIMC & n->flags)
1.222     kristaps  347:                        p->flags |= TERMP_NOSPACE;
1.217     schwarze  348:                term_word(p, n->string);
1.338     schwarze  349:                if (NODE_DELIMO & n->flags)
1.222     kristaps  350:                        p->flags |= TERMP_NOSPACE;
1.217     schwarze  351:                break;
1.314     schwarze  352:        case ROFFT_EQN:
1.338     schwarze  353:                if ( ! (n->flags & NODE_LINE))
1.284     schwarze  354:                        p->flags |= TERMP_NOSPACE;
1.233     kristaps  355:                term_eqn(p, n->eqn);
1.338     schwarze  356:                if (n->next != NULL && ! (n->next->flags & NODE_LINE))
1.285     schwarze  357:                        p->flags |= TERMP_NOSPACE;
1.217     schwarze  358:                break;
1.314     schwarze  359:        case ROFFT_TBL:
1.313     schwarze  360:                if (p->tbl.cols == NULL)
                    361:                        term_newln(p);
1.217     schwarze  362:                term_tbl(p, n->span);
                    363:                break;
                    364:        default:
1.351     schwarze  365:                if (n->tok < ROFF_MAX) {
1.352     schwarze  366:                        roff_term_pre(p, n);
1.354   ! schwarze  367:                        return;
1.351     schwarze  368:                }
                    369:                assert(n->tok >= MDOC_Dd && n->tok < MDOC_MAX);
1.350     schwarze  370:                if (termacts[n->tok].pre != NULL &&
1.331     schwarze  371:                    (n->end == ENDBODY_NOT || n->child != NULL))
1.217     schwarze  372:                        chld = (*termacts[n->tok].pre)
1.245     schwarze  373:                                (p, &npair, meta, n);
1.217     schwarze  374:                break;
                    375:        }
                    376:
1.86      kristaps  377:        if (chld && n->child)
1.245     schwarze  378:                print_mdoc_nodelist(p, &npair, meta, n->child);
1.1       kristaps  379:
1.244     schwarze  380:        term_fontpopq(p,
1.310     schwarze  381:            (ENDBODY_NOT == n->end ? n : n->body)->prev_font);
1.46      kristaps  382:
1.206     kristaps  383:        switch (n->type) {
1.314     schwarze  384:        case ROFFT_TEXT:
1.206     kristaps  385:                break;
1.314     schwarze  386:        case ROFFT_TBL:
1.216     kristaps  387:                break;
1.314     schwarze  388:        case ROFFT_EQN:
1.206     kristaps  389:                break;
                    390:        default:
1.354   ! schwarze  391:                if (termacts[n->tok].post == NULL || n->flags & NODE_ENDED)
1.206     kristaps  392:                        break;
1.245     schwarze  393:                (void)(*termacts[n->tok].post)(p, &npair, meta, n);
1.162     schwarze  394:
                    395:                /*
                    396:                 * Explicit end tokens not only call the post
                    397:                 * handler, but also tell the respective block
                    398:                 * that it must not call the post handler again.
                    399:                 */
1.165     kristaps  400:                if (ENDBODY_NOT != n->end)
1.338     schwarze  401:                        n->body->flags |= NODE_ENDED;
1.206     kristaps  402:                break;
1.162     schwarze  403:        }
1.121     kristaps  404:
1.338     schwarze  405:        if (NODE_EOS & n->flags)
1.121     kristaps  406:                p->flags |= TERMP_SENTENCE;
1.29      kristaps  407:
1.354   ! schwarze  408:        p->offset = offset;
        !           409:        p->rmargin = rmargin;
1.1       kristaps  410: }
                    411:
1.3       kristaps  412: static void
1.316     schwarze  413: print_mdoc_foot(struct termp *p, const struct roff_meta *meta)
1.1       kristaps  414: {
1.292     schwarze  415:        size_t sz;
1.144     kristaps  416:
1.102     kristaps  417:        term_fontrepl(p, TERMFONT_NONE);
1.101     kristaps  418:
1.264     schwarze  419:        /*
1.9       kristaps  420:         * Output the footer in new-groff style, that is, three columns
                    421:         * with the middle being the manual date and flanking columns
                    422:         * being the operating system:
                    423:         *
                    424:         * SYSTEM                  DATE                    SYSTEM
                    425:         */
                    426:
1.1       kristaps  427:        term_vspace(p);
                    428:
1.9       kristaps  429:        p->offset = 0;
1.292     schwarze  430:        sz = term_strlen(p, meta->date);
                    431:        p->rmargin = p->maxrmargin > sz ?
                    432:            (p->maxrmargin + term_len(p, 1) - sz) / 2 : 0;
1.250     schwarze  433:        p->trailspace = 1;
1.1       kristaps  434:        p->flags |= TERMP_NOSPACE | TERMP_NOBREAK;
                    435:
1.245     schwarze  436:        term_word(p, meta->os);
1.1       kristaps  437:        term_flushln(p);
                    438:
1.9       kristaps  439:        p->offset = p->rmargin;
1.292     schwarze  440:        sz = term_strlen(p, meta->os);
                    441:        p->rmargin = p->maxrmargin > sz ? p->maxrmargin - sz : 0;
1.234     schwarze  442:        p->flags |= TERMP_NOSPACE;
1.9       kristaps  443:
1.245     schwarze  444:        term_word(p, meta->date);
1.9       kristaps  445:        term_flushln(p);
                    446:
1.1       kristaps  447:        p->offset = p->rmargin;
                    448:        p->rmargin = p->maxrmargin;
1.250     schwarze  449:        p->trailspace = 0;
1.1       kristaps  450:        p->flags &= ~TERMP_NOBREAK;
1.234     schwarze  451:        p->flags |= TERMP_NOSPACE;
1.1       kristaps  452:
1.245     schwarze  453:        term_word(p, meta->os);
1.1       kristaps  454:        term_flushln(p);
                    455:
1.9       kristaps  456:        p->offset = 0;
                    457:        p->rmargin = p->maxrmargin;
                    458:        p->flags = 0;
1.1       kristaps  459: }
                    460:
1.3       kristaps  461: static void
1.316     schwarze  462: print_mdoc_head(struct termp *p, const struct roff_meta *meta)
1.1       kristaps  463: {
1.267     schwarze  464:        char                    *volume, *title;
                    465:        size_t                   vollen, titlen;
1.1       kristaps  466:
                    467:        /*
                    468:         * The header is strange.  It has three components, which are
                    469:         * really two with the first duplicated.  It goes like this:
                    470:         *
                    471:         * IDENTIFIER              TITLE                   IDENTIFIER
                    472:         *
                    473:         * The IDENTIFIER is NAME(SECTION), which is the command-name
                    474:         * (if given, or "unknown" if not) followed by the manual page
                    475:         * section.  These are given in `Dt'.  The TITLE is a free-form
                    476:         * string depending on the manual volume.  If not specified, it
                    477:         * switches on the manual section.
                    478:         */
1.235     schwarze  479:
1.245     schwarze  480:        assert(meta->vol);
1.267     schwarze  481:        if (NULL == meta->arch)
                    482:                volume = mandoc_strdup(meta->vol);
                    483:        else
                    484:                mandoc_asprintf(&volume, "%s (%s)",
                    485:                    meta->vol, meta->arch);
                    486:        vollen = term_strlen(p, volume);
1.1       kristaps  487:
1.275     schwarze  488:        if (NULL == meta->msec)
                    489:                title = mandoc_strdup(meta->title);
                    490:        else
                    491:                mandoc_asprintf(&title, "%s(%s)",
                    492:                    meta->title, meta->msec);
1.235     schwarze  493:        titlen = term_strlen(p, title);
1.1       kristaps  494:
1.235     schwarze  495:        p->flags |= TERMP_NOBREAK | TERMP_NOSPACE;
1.250     schwarze  496:        p->trailspace = 1;
1.1       kristaps  497:        p->offset = 0;
1.267     schwarze  498:        p->rmargin = 2 * (titlen+1) + vollen < p->maxrmargin ?
                    499:            (p->maxrmargin - vollen + term_len(p, 1)) / 2 :
1.292     schwarze  500:            vollen < p->maxrmargin ?  p->maxrmargin - vollen : 0;
1.1       kristaps  501:
                    502:        term_word(p, title);
                    503:        term_flushln(p);
                    504:
1.235     schwarze  505:        p->flags |= TERMP_NOSPACE;
1.1       kristaps  506:        p->offset = p->rmargin;
1.267     schwarze  507:        p->rmargin = p->offset + vollen + titlen < p->maxrmargin ?
1.235     schwarze  508:            p->maxrmargin - titlen : p->maxrmargin;
1.1       kristaps  509:
1.267     schwarze  510:        term_word(p, volume);
1.1       kristaps  511:        term_flushln(p);
                    512:
                    513:        p->flags &= ~TERMP_NOBREAK;
1.250     schwarze  514:        p->trailspace = 0;
1.235     schwarze  515:        if (p->rmargin + titlen <= p->maxrmargin) {
                    516:                p->flags |= TERMP_NOSPACE;
                    517:                p->offset = p->rmargin;
                    518:                p->rmargin = p->maxrmargin;
                    519:                term_word(p, title);
                    520:                term_flushln(p);
                    521:        }
1.1       kristaps  522:
1.235     schwarze  523:        p->flags &= ~TERMP_NOSPACE;
1.9       kristaps  524:        p->offset = 0;
1.1       kristaps  525:        p->rmargin = p->maxrmargin;
1.266     schwarze  526:        free(title);
1.267     schwarze  527:        free(volume);
1.1       kristaps  528: }
                    529:
1.302     schwarze  530: static int
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:
1.300     schwarze  535:        if (a2roffsu(v, &su, SCALE_MAX) < 2) {
1.157     kristaps  536:                SCALE_HS_INIT(&su, term_strlen(p, v));
1.283     schwarze  537:                su.scale /= term_strlen(p, "0");
1.302     schwarze  538:        }
1.328     schwarze  539:        return term_hspan(p, &su) / 24;
1.1       kristaps  540: }
                    541:
1.108     kristaps  542: /*
                    543:  * Determine how much space to print out before block elements of `It'
                    544:  * (and thus `Bl') and `Bd'.  And then go ahead and print that space,
                    545:  * too.
                    546:  */
1.54      kristaps  547: static void
1.264     schwarze  548: print_bvspace(struct termp *p,
1.315     schwarze  549:        const struct roff_node *bl,
                    550:        const struct roff_node *n)
1.1       kristaps  551: {
1.315     schwarze  552:        const struct roff_node  *nn;
1.236     schwarze  553:
                    554:        assert(n);
1.1       kristaps  555:
                    556:        term_newln(p);
1.150     kristaps  557:
1.202     kristaps  558:        if (MDOC_Bd == bl->tok && bl->norm->Bd.comp)
1.150     kristaps  559:                return;
1.202     kristaps  560:        if (MDOC_Bl == bl->tok && bl->norm->Bl.comp)
1.54      kristaps  561:                return;
                    562:
1.85      kristaps  563:        /* Do not vspace directly after Ss/Sh. */
1.1       kristaps  564:
1.289     schwarze  565:        nn = n;
1.337     schwarze  566:        while (nn->prev != NULL && nn->prev->flags & NODE_NOPRT)
                    567:                nn = nn->prev;
1.289     schwarze  568:        while (nn->prev == NULL) {
                    569:                do {
                    570:                        nn = nn->parent;
1.314     schwarze  571:                        if (nn->type == ROFFT_ROOT)
1.289     schwarze  572:                                return;
1.314     schwarze  573:                } while (nn->type != ROFFT_BLOCK);
1.289     schwarze  574:                if (nn->tok == MDOC_Sh || nn->tok == MDOC_Ss)
1.54      kristaps  575:                        return;
1.289     schwarze  576:                if (nn->tok == MDOC_It &&
                    577:                    nn->parent->parent->norm->Bl.type != LIST_item)
                    578:                        break;
1.1       kristaps  579:        }
                    580:
1.85      kristaps  581:        /* A `-column' does not assert vspace within the list. */
1.54      kristaps  582:
1.202     kristaps  583:        if (MDOC_Bl == bl->tok && LIST_column == bl->norm->Bl.type)
1.86      kristaps  584:                if (n->prev && MDOC_It == n->prev->tok)
1.54      kristaps  585:                        return;
                    586:
1.85      kristaps  587:        /* A `-diag' without body does not vspace. */
                    588:
1.202     kristaps  589:        if (MDOC_Bl == bl->tok && LIST_diag == bl->norm->Bl.type)
1.86      kristaps  590:                if (n->prev && MDOC_It == n->prev->tok) {
                    591:                        assert(n->prev->body);
                    592:                        if (NULL == n->prev->body->child)
1.55      kristaps  593:                                return;
                    594:                }
                    595:
1.54      kristaps  596:        term_vspace(p);
1.260     schwarze  597: }
                    598:
1.1       kristaps  599:
                    600: static int
                    601: termp_it_pre(DECL_ARGS)
                    602: {
1.345     schwarze  603:        struct roffsu           su;
1.302     schwarze  604:        char                    buf[24];
1.315     schwarze  605:        const struct roff_node *bl, *nn;
1.302     schwarze  606:        size_t                  ncols, dcol;
                    607:        int                     i, offset, width;
1.126     kristaps  608:        enum mdoc_list          type;
1.1       kristaps  609:
1.314     schwarze  610:        if (n->type == ROFFT_BLOCK) {
1.151     kristaps  611:                print_bvspace(p, n->parent->parent, n);
1.328     schwarze  612:                return 1;
1.54      kristaps  613:        }
1.1       kristaps  614:
1.86      kristaps  615:        bl = n->parent->parent->parent;
1.202     kristaps  616:        type = bl->norm->Bl.type;
1.1       kristaps  617:
1.264     schwarze  618:        /*
1.302     schwarze  619:         * Defaults for specific list types.
                    620:         */
                    621:
                    622:        switch (type) {
                    623:        case LIST_bullet:
                    624:        case LIST_dash:
                    625:        case LIST_hyphen:
                    626:        case LIST_enum:
                    627:                width = term_len(p, 2);
                    628:                break;
                    629:        case LIST_hang:
1.332     schwarze  630:        case LIST_tag:
1.302     schwarze  631:                width = term_len(p, 8);
                    632:                break;
                    633:        case LIST_column:
                    634:                width = term_len(p, 10);
                    635:                break;
                    636:        default:
                    637:                width = 0;
                    638:                break;
                    639:        }
                    640:        offset = 0;
                    641:
                    642:        /*
1.108     kristaps  643:         * First calculate width and offset.  This is pretty easy unless
                    644:         * we're a -column list, in which case all prior columns must
                    645:         * be accounted for.
                    646:         */
                    647:
1.302     schwarze  648:        if (bl->norm->Bl.offs != NULL) {
1.288     schwarze  649:                offset = a2width(p, bl->norm->Bl.offs);
1.302     schwarze  650:                if (offset < 0 && (size_t)(-offset) > p->offset)
                    651:                        offset = -p->offset;
                    652:                else if (offset > SHRT_MAX)
                    653:                        offset = 0;
                    654:        }
1.152     kristaps  655:
1.1       kristaps  656:        switch (type) {
1.264     schwarze  657:        case LIST_column:
1.314     schwarze  658:                if (n->type == ROFFT_HEAD)
1.1       kristaps  659:                        break;
1.155     kristaps  660:
1.105     kristaps  661:                /*
1.108     kristaps  662:                 * Imitate groff's column handling:
                    663:                 * - For each earlier column, add its width.
                    664:                 * - For less than 5 columns, add four more blanks per
                    665:                 *   column.
                    666:                 * - For exactly 5 columns, add three more blank per
                    667:                 *   column.
                    668:                 * - For more than 5 columns, add only one column.
1.105     kristaps  669:                 */
1.202     kristaps  670:                ncols = bl->norm->Bl.ncols;
1.264     schwarze  671:                dcol = ncols < 5 ? term_len(p, 4) :
                    672:                    ncols == 5 ? term_len(p, 3) : term_len(p, 1);
1.108     kristaps  673:
1.134     kristaps  674:                /*
1.314     schwarze  675:                 * Calculate the offset by applying all prior ROFFT_BODY,
                    676:                 * so we stop at the ROFFT_HEAD (nn->prev == NULL).
1.134     kristaps  677:                 */
                    678:
1.264     schwarze  679:                for (i = 0, nn = n->prev;
                    680:                    nn->prev && i < (int)ncols;
1.345     schwarze  681:                    nn = nn->prev, i++) {
                    682:                        SCALE_HS_INIT(&su,
                    683:                            term_strlen(p, bl->norm->Bl.cols[i]));
                    684:                        su.scale /= term_strlen(p, "0");
                    685:                        offset += term_hspan(p, &su) / 24 + dcol;
                    686:                }
1.105     kristaps  687:
                    688:                /*
1.108     kristaps  689:                 * When exceeding the declared number of columns, leave
                    690:                 * the remaining widths at 0.  This will later be
                    691:                 * adjusted to the default width of 10, or, for the last
                    692:                 * column, stretched to the right margin.
1.58      kristaps  693:                 */
1.108     kristaps  694:                if (i >= (int)ncols)
                    695:                        break;
1.58      kristaps  696:
1.105     kristaps  697:                /*
1.108     kristaps  698:                 * Use the declared column widths, extended as explained
                    699:                 * in the preceding paragraph.
1.105     kristaps  700:                 */
1.345     schwarze  701:                SCALE_HS_INIT(&su, term_strlen(p, bl->norm->Bl.cols[i]));
                    702:                su.scale /= term_strlen(p, "0");
                    703:                width = term_hspan(p, &su) / 24 + dcol;
1.1       kristaps  704:                break;
                    705:        default:
1.202     kristaps  706:                if (NULL == bl->norm->Bl.width)
1.108     kristaps  707:                        break;
                    708:
1.264     schwarze  709:                /*
1.108     kristaps  710:                 * Note: buffer the width by 2, which is groff's magic
                    711:                 * number for buffering single arguments.  See the above
                    712:                 * handling for column for how this changes.
                    713:                 */
1.202     kristaps  714:                width = a2width(p, bl->norm->Bl.width) + term_len(p, 2);
1.302     schwarze  715:                if (width < 0 && (size_t)(-width) > p->offset)
                    716:                        width = -p->offset;
                    717:                else if (width > SHRT_MAX)
                    718:                        width = 0;
1.1       kristaps  719:                break;
                    720:        }
                    721:
1.264     schwarze  722:        /*
1.17      kristaps  723:         * Whitespace control.  Inset bodies need an initial space,
                    724:         * while diagonal bodies need two.
1.1       kristaps  725:         */
                    726:
1.51      kristaps  727:        p->flags |= TERMP_NOSPACE;
                    728:
1.1       kristaps  729:        switch (type) {
1.264     schwarze  730:        case LIST_diag:
1.314     schwarze  731:                if (n->type == ROFFT_BODY)
1.62      kristaps  732:                        term_word(p, "\\ \\ ");
1.51      kristaps  733:                break;
1.264     schwarze  734:        case LIST_inset:
1.331     schwarze  735:                if (n->type == ROFFT_BODY && n->parent->head->child != NULL)
1.51      kristaps  736:                        term_word(p, "\\ ");
1.1       kristaps  737:                break;
                    738:        default:
                    739:                break;
                    740:        }
                    741:
1.51      kristaps  742:        p->flags |= TERMP_NOSPACE;
                    743:
1.1       kristaps  744:        switch (type) {
1.264     schwarze  745:        case LIST_diag:
1.314     schwarze  746:                if (n->type == ROFFT_HEAD)
1.102     kristaps  747:                        term_fontpush(p, TERMFONT_BOLD);
1.1       kristaps  748:                break;
                    749:        default:
                    750:                break;
                    751:        }
                    752:
                    753:        /*
1.109     kristaps  754:         * Pad and break control.  This is the tricky part.  These flags
                    755:         * are documented in term_flushln() in term.c.  Note that we're
                    756:         * going to unset all of these flags in termp_it_post() when we
                    757:         * exit.
1.1       kristaps  758:         */
                    759:
                    760:        switch (type) {
1.264     schwarze  761:        case LIST_enum:
1.329     schwarze  762:        case LIST_bullet:
                    763:        case LIST_dash:
                    764:        case LIST_hyphen:
1.242     schwarze  765:                /*
                    766:                 * Weird special case.
1.302     schwarze  767:                 * Some very narrow lists actually hang.
1.242     schwarze  768:                 */
1.302     schwarze  769:                if (width <= (int)term_len(p, 2))
                    770:                        p->flags |= TERMP_HANG;
1.314     schwarze  771:                if (n->type != ROFFT_HEAD)
1.250     schwarze  772:                        break;
                    773:                p->flags |= TERMP_NOBREAK;
                    774:                p->trailspace = 1;
1.39      kristaps  775:                break;
1.264     schwarze  776:        case LIST_hang:
1.314     schwarze  777:                if (n->type != ROFFT_HEAD)
1.59      kristaps  778:                        break;
                    779:
                    780:                /*
                    781:                 * This is ugly.  If `-hang' is specified and the body
                    782:                 * is a `Bl' or `Bd', then we want basically to nullify
                    783:                 * the "overstep" effect in term_flushln() and treat
                    784:                 * this as a `-ohang' list instead.
                    785:                 */
1.279     schwarze  786:                if (NULL != n->next &&
1.278     schwarze  787:                    NULL != n->next->child &&
                    788:                    (MDOC_Bl == n->next->child->tok ||
                    789:                     MDOC_Bd == n->next->child->tok))
1.250     schwarze  790:                        break;
                    791:
1.263     schwarze  792:                p->flags |= TERMP_NOBREAK | TERMP_BRIND | TERMP_HANG;
1.250     schwarze  793:                p->trailspace = 1;
1.39      kristaps  794:                break;
1.264     schwarze  795:        case LIST_tag:
1.314     schwarze  796:                if (n->type != ROFFT_HEAD)
1.39      kristaps  797:                        break;
1.250     schwarze  798:
1.326     schwarze  799:                p->flags |= TERMP_NOBREAK | TERMP_BRTRSP | TERMP_BRIND;
1.250     schwarze  800:                p->trailspace = 2;
                    801:
1.86      kristaps  802:                if (NULL == n->next || NULL == n->next->child)
1.39      kristaps  803:                        p->flags |= TERMP_DANGLE;
1.1       kristaps  804:                break;
1.264     schwarze  805:        case LIST_column:
1.314     schwarze  806:                if (n->type == ROFFT_HEAD)
1.134     kristaps  807:                        break;
                    808:
1.250     schwarze  809:                if (NULL == n->next) {
1.134     kristaps  810:                        p->flags &= ~TERMP_NOBREAK;
1.250     schwarze  811:                        p->trailspace = 0;
                    812:                } else {
1.134     kristaps  813:                        p->flags |= TERMP_NOBREAK;
1.250     schwarze  814:                        p->trailspace = 1;
                    815:                }
1.134     kristaps  816:
1.1       kristaps  817:                break;
1.264     schwarze  818:        case LIST_diag:
1.314     schwarze  819:                if (n->type != ROFFT_HEAD)
1.250     schwarze  820:                        break;
1.263     schwarze  821:                p->flags |= TERMP_NOBREAK | TERMP_BRIND;
1.250     schwarze  822:                p->trailspace = 1;
1.1       kristaps  823:                break;
                    824:        default:
                    825:                break;
                    826:        }
                    827:
1.264     schwarze  828:        /*
1.1       kristaps  829:         * Margin control.  Set-head-width lists have their right
                    830:         * margins shortened.  The body for these lists has the offset
                    831:         * necessarily lengthened.  Everybody gets the offset.
                    832:         */
                    833:
                    834:        p->offset += offset;
                    835:
                    836:        switch (type) {
1.264     schwarze  837:        case LIST_hang:
1.59      kristaps  838:                /*
                    839:                 * Same stipulation as above, regarding `-hang'.  We
                    840:                 * don't want to recalculate rmargin and offsets when
                    841:                 * using `Bd' or `Bl' within `-hang' overstep lists.
                    842:                 */
1.314     schwarze  843:                if (n->type == ROFFT_HEAD &&
1.279     schwarze  844:                    NULL != n->next &&
1.278     schwarze  845:                    NULL != n->next->child &&
                    846:                    (MDOC_Bl == n->next->child->tok ||
                    847:                     MDOC_Bd == n->next->child->tok))
1.59      kristaps  848:                        break;
                    849:                /* FALLTHROUGH */
1.264     schwarze  850:        case LIST_bullet:
                    851:        case LIST_dash:
                    852:        case LIST_enum:
                    853:        case LIST_hyphen:
                    854:        case LIST_tag:
1.314     schwarze  855:                if (n->type == ROFFT_HEAD)
1.1       kristaps  856:                        p->rmargin = p->offset + width;
1.292     schwarze  857:                else
1.1       kristaps  858:                        p->offset += width;
                    859:                break;
1.264     schwarze  860:        case LIST_column:
1.49      kristaps  861:                assert(width);
1.1       kristaps  862:                p->rmargin = p->offset + width;
1.264     schwarze  863:                /*
1.50      kristaps  864:                 * XXX - this behaviour is not documented: the
                    865:                 * right-most column is filled to the right margin.
                    866:                 */
1.314     schwarze  867:                if (n->type == ROFFT_HEAD)
1.134     kristaps  868:                        break;
                    869:                if (NULL == n->next && p->rmargin < p->maxrmargin)
1.50      kristaps  870:                        p->rmargin = p->maxrmargin;
1.1       kristaps  871:                break;
                    872:        default:
                    873:                break;
                    874:        }
                    875:
1.264     schwarze  876:        /*
1.1       kristaps  877:         * The dash, hyphen, bullet and enum lists all have a special
1.264     schwarze  878:         * HEAD character (temporarily bold, in some cases).
1.1       kristaps  879:         */
                    880:
1.314     schwarze  881:        if (n->type == ROFFT_HEAD)
1.1       kristaps  882:                switch (type) {
1.264     schwarze  883:                case LIST_bullet:
1.102     kristaps  884:                        term_fontpush(p, TERMFONT_BOLD);
1.1       kristaps  885:                        term_word(p, "\\[bu]");
1.102     kristaps  886:                        term_fontpop(p);
1.1       kristaps  887:                        break;
1.264     schwarze  888:                case LIST_dash:
                    889:                case LIST_hyphen:
1.102     kristaps  890:                        term_fontpush(p, TERMFONT_BOLD);
1.330     schwarze  891:                        term_word(p, "-");
1.102     kristaps  892:                        term_fontpop(p);
1.1       kristaps  893:                        break;
1.264     schwarze  894:                case LIST_enum:
1.1       kristaps  895:                        (pair->ppair->ppair->count)++;
1.265     schwarze  896:                        (void)snprintf(buf, sizeof(buf), "%d.",
1.264     schwarze  897:                            pair->ppair->ppair->count);
1.1       kristaps  898:                        term_word(p, buf);
                    899:                        break;
                    900:                default:
                    901:                        break;
                    902:                }
                    903:
1.264     schwarze  904:        /*
1.1       kristaps  905:         * If we're not going to process our children, indicate so here.
                    906:         */
                    907:
                    908:        switch (type) {
1.264     schwarze  909:        case LIST_bullet:
                    910:        case LIST_item:
                    911:        case LIST_dash:
                    912:        case LIST_hyphen:
                    913:        case LIST_enum:
1.314     schwarze  914:                if (n->type == ROFFT_HEAD)
1.328     schwarze  915:                        return 0;
1.1       kristaps  916:                break;
1.264     schwarze  917:        case LIST_column:
1.314     schwarze  918:                if (n->type == ROFFT_HEAD)
1.328     schwarze  919:                        return 0;
1.1       kristaps  920:                break;
                    921:        default:
                    922:                break;
                    923:        }
                    924:
1.328     schwarze  925:        return 1;
1.1       kristaps  926: }
                    927:
                    928: static void
                    929: termp_it_post(DECL_ARGS)
                    930: {
1.126     kristaps  931:        enum mdoc_list     type;
1.1       kristaps  932:
1.314     schwarze  933:        if (n->type == ROFFT_BLOCK)
1.1       kristaps  934:                return;
                    935:
1.202     kristaps  936:        type = n->parent->parent->parent->norm->Bl.type;
1.1       kristaps  937:
                    938:        switch (type) {
1.264     schwarze  939:        case LIST_item:
                    940:        case LIST_diag:
                    941:        case LIST_inset:
1.314     schwarze  942:                if (n->type == ROFFT_BODY)
1.130     schwarze  943:                        term_newln(p);
1.1       kristaps  944:                break;
1.264     schwarze  945:        case LIST_column:
1.314     schwarze  946:                if (n->type == ROFFT_BODY)
1.1       kristaps  947:                        term_flushln(p);
                    948:                break;
                    949:        default:
1.130     schwarze  950:                term_newln(p);
1.1       kristaps  951:                break;
                    952:        }
                    953:
1.264     schwarze  954:        /*
1.109     kristaps  955:         * Now that our output is flushed, we can reset our tags.  Since
                    956:         * only `It' sets these flags, we're free to assume that nobody
                    957:         * has munged them in the meanwhile.
                    958:         */
                    959:
1.326     schwarze  960:        p->flags &= ~(TERMP_NOBREAK | TERMP_BRTRSP | TERMP_BRIND |
1.263     schwarze  961:                        TERMP_DANGLE | TERMP_HANG);
1.250     schwarze  962:        p->trailspace = 0;
1.1       kristaps  963: }
                    964:
                    965: static int
                    966: termp_nm_pre(DECL_ARGS)
                    967: {
1.296     schwarze  968:        const char      *cp;
1.1       kristaps  969:
1.314     schwarze  970:        if (n->type == ROFFT_BLOCK) {
1.253     schwarze  971:                p->flags |= TERMP_PREKEEP;
1.328     schwarze  972:                return 1;
1.253     schwarze  973:        }
1.164     schwarze  974:
1.314     schwarze  975:        if (n->type == ROFFT_BODY) {
1.164     schwarze  976:                if (NULL == n->child)
1.328     schwarze  977:                        return 0;
1.234     schwarze  978:                p->flags |= TERMP_NOSPACE;
1.296     schwarze  979:                cp = NULL;
                    980:                if (n->prev->child != NULL)
                    981:                    cp = n->prev->child->string;
                    982:                if (cp == NULL)
                    983:                        cp = meta->name;
                    984:                if (cp == NULL)
                    985:                        p->offset += term_len(p, 6);
                    986:                else
                    987:                        p->offset += term_len(p, 1) + term_strlen(p, cp);
1.328     schwarze  988:                return 1;
1.164     schwarze  989:        }
                    990:
1.343     schwarze  991:        if (n->child == NULL)
1.328     schwarze  992:                return 0;
1.125     kristaps  993:
1.314     schwarze  994:        if (n->type == ROFFT_HEAD)
1.177     schwarze  995:                synopsis_pre(p, n->parent);
1.102     kristaps  996:
1.314     schwarze  997:        if (n->type == ROFFT_HEAD &&
1.278     schwarze  998:            NULL != n->next && NULL != n->next->child) {
1.263     schwarze  999:                p->flags |= TERMP_NOSPACE | TERMP_NOBREAK | TERMP_BRIND;
1.250     schwarze 1000:                p->trailspace = 1;
1.185     schwarze 1001:                p->rmargin = p->offset + term_len(p, 1);
                   1002:                if (NULL == n->child) {
1.245     schwarze 1003:                        p->rmargin += term_strlen(p, meta->name);
1.314     schwarze 1004:                } else if (n->child->type == ROFFT_TEXT) {
1.185     schwarze 1005:                        p->rmargin += term_strlen(p, n->child->string);
                   1006:                        if (n->child->next)
                   1007:                                p->flags |= TERMP_HANG;
                   1008:                } else {
                   1009:                        p->rmargin += term_len(p, 5);
                   1010:                        p->flags |= TERMP_HANG;
                   1011:                }
1.164     schwarze 1012:        }
                   1013:
1.102     kristaps 1014:        term_fontpush(p, TERMFONT_BOLD);
1.328     schwarze 1015:        return 1;
1.1       kristaps 1016: }
                   1017:
1.164     schwarze 1018: static void
                   1019: termp_nm_post(DECL_ARGS)
                   1020: {
                   1021:
1.314     schwarze 1022:        if (n->type == ROFFT_BLOCK) {
1.253     schwarze 1023:                p->flags &= ~(TERMP_KEEP | TERMP_PREKEEP);
1.314     schwarze 1024:        } else if (n->type == ROFFT_HEAD &&
1.278     schwarze 1025:            NULL != n->next && NULL != n->next->child) {
1.164     schwarze 1026:                term_flushln(p);
1.263     schwarze 1027:                p->flags &= ~(TERMP_NOBREAK | TERMP_BRIND | TERMP_HANG);
1.250     schwarze 1028:                p->trailspace = 0;
1.314     schwarze 1029:        } else if (n->type == ROFFT_BODY && n->child != NULL)
1.164     schwarze 1030:                term_flushln(p);
                   1031: }
                   1032:
1.1       kristaps 1033: static int
                   1034: termp_fl_pre(DECL_ARGS)
                   1035: {
                   1036:
1.320     schwarze 1037:        termp_tag_pre(p, pair, meta, n);
1.102     kristaps 1038:        term_fontpush(p, TERMFONT_BOLD);
1.1       kristaps 1039:        term_word(p, "\\-");
1.103     kristaps 1040:
1.331     schwarze 1041:        if (!(n->child == NULL &&
1.280     schwarze 1042:            (n->next == NULL ||
1.314     schwarze 1043:             n->next->type == ROFFT_TEXT ||
1.338     schwarze 1044:             n->next->flags & NODE_LINE)))
1.103     kristaps 1045:                p->flags |= TERMP_NOSPACE;
                   1046:
1.328     schwarze 1047:        return 1;
1.1       kristaps 1048: }
                   1049:
                   1050: static int
1.184     kristaps 1051: termp__a_pre(DECL_ARGS)
                   1052: {
                   1053:
                   1054:        if (n->prev && MDOC__A == n->prev->tok)
                   1055:                if (NULL == n->next || MDOC__A != n->next->tok)
                   1056:                        term_word(p, "and");
                   1057:
1.328     schwarze 1058:        return 1;
1.184     kristaps 1059: }
                   1060:
                   1061: static int
1.61      kristaps 1062: termp_an_pre(DECL_ARGS)
                   1063: {
                   1064:
1.282     schwarze 1065:        if (n->norm->An.auth == AUTH_split) {
                   1066:                p->flags &= ~TERMP_NOSPLIT;
                   1067:                p->flags |= TERMP_SPLIT;
1.328     schwarze 1068:                return 0;
1.282     schwarze 1069:        }
                   1070:        if (n->norm->An.auth == AUTH_nosplit) {
                   1071:                p->flags &= ~TERMP_SPLIT;
                   1072:                p->flags |= TERMP_NOSPLIT;
1.328     schwarze 1073:                return 0;
1.282     schwarze 1074:        }
1.264     schwarze 1075:
1.282     schwarze 1076:        if (p->flags & TERMP_SPLIT)
1.61      kristaps 1077:                term_newln(p);
                   1078:
1.282     schwarze 1079:        if (n->sec == SEC_AUTHORS && ! (p->flags & TERMP_NOSPLIT))
                   1080:                p->flags |= TERMP_SPLIT;
1.61      kristaps 1081:
1.328     schwarze 1082:        return 1;
1.61      kristaps 1083: }
                   1084:
                   1085: static int
1.1       kristaps 1086: termp_ns_pre(DECL_ARGS)
                   1087: {
                   1088:
1.338     schwarze 1089:        if ( ! (NODE_LINE & n->flags))
1.215     kristaps 1090:                p->flags |= TERMP_NOSPACE;
1.328     schwarze 1091:        return 1;
1.1       kristaps 1092: }
                   1093:
                   1094: static int
                   1095: termp_rs_pre(DECL_ARGS)
                   1096: {
                   1097:
1.86      kristaps 1098:        if (SEC_SEE_ALSO != n->sec)
1.328     schwarze 1099:                return 1;
1.314     schwarze 1100:        if (n->type == ROFFT_BLOCK && n->prev != NULL)
1.1       kristaps 1101:                term_vspace(p);
1.328     schwarze 1102:        return 1;
1.1       kristaps 1103: }
                   1104:
                   1105: static int
                   1106: termp_ex_pre(DECL_ARGS)
                   1107: {
1.224     kristaps 1108:        term_newln(p);
1.341     schwarze 1109:        return 1;
1.1       kristaps 1110: }
                   1111:
                   1112: static int
                   1113: termp_nd_pre(DECL_ARGS)
                   1114: {
1.25      kristaps 1115:
1.314     schwarze 1116:        if (n->type == ROFFT_BODY)
1.297     schwarze 1117:                term_word(p, "\\(en");
1.328     schwarze 1118:        return 1;
1.115     kristaps 1119: }
                   1120:
                   1121: static int
                   1122: termp_bl_pre(DECL_ARGS)
                   1123: {
                   1124:
1.328     schwarze 1125:        return n->type != ROFFT_HEAD;
1.1       kristaps 1126: }
                   1127:
                   1128: static void
                   1129: termp_bl_post(DECL_ARGS)
                   1130: {
                   1131:
1.314     schwarze 1132:        if (n->type == ROFFT_BLOCK)
1.1       kristaps 1133:                term_newln(p);
                   1134: }
                   1135:
                   1136: static int
                   1137: termp_xr_pre(DECL_ARGS)
                   1138: {
                   1139:
1.225     kristaps 1140:        if (NULL == (n = n->child))
1.328     schwarze 1141:                return 0;
1.113     kristaps 1142:
1.314     schwarze 1143:        assert(n->type == ROFFT_TEXT);
1.225     kristaps 1144:        term_word(p, n->string);
1.11      kristaps 1145:
1.264     schwarze 1146:        if (NULL == (n = n->next))
1.328     schwarze 1147:                return 0;
1.225     kristaps 1148:
1.1       kristaps 1149:        p->flags |= TERMP_NOSPACE;
                   1150:        term_word(p, "(");
1.222     kristaps 1151:        p->flags |= TERMP_NOSPACE;
1.225     kristaps 1152:
1.314     schwarze 1153:        assert(n->type == ROFFT_TEXT);
1.225     kristaps 1154:        term_word(p, n->string);
                   1155:
1.222     kristaps 1156:        p->flags |= TERMP_NOSPACE;
1.1       kristaps 1157:        term_word(p, ")");
1.86      kristaps 1158:
1.328     schwarze 1159:        return 0;
1.1       kristaps 1160: }
                   1161:
1.143     kristaps 1162: /*
                   1163:  * This decides how to assert whitespace before any of the SYNOPSIS set
                   1164:  * of macros (which, as in the case of Ft/Fo and Ft/Fn, may contain
                   1165:  * macro combos).
                   1166:  */
                   1167: static void
1.315     schwarze 1168: synopsis_pre(struct termp *p, const struct roff_node *n)
1.143     kristaps 1169: {
1.264     schwarze 1170:        /*
1.143     kristaps 1171:         * Obviously, if we're not in a SYNOPSIS or no prior macros
                   1172:         * exist, do nothing.
                   1173:         */
1.338     schwarze 1174:        if (NULL == n->prev || ! (NODE_SYNPRETTY & n->flags))
1.143     kristaps 1175:                return;
                   1176:
                   1177:        /*
                   1178:         * If we're the second in a pair of like elements, emit our
                   1179:         * newline and return.  UNLESS we're `Fo', `Fn', `Fn', in which
                   1180:         * case we soldier on.
                   1181:         */
1.264     schwarze 1182:        if (n->prev->tok == n->tok &&
                   1183:            MDOC_Ft != n->tok &&
                   1184:            MDOC_Fo != n->tok &&
                   1185:            MDOC_Fn != n->tok) {
1.143     kristaps 1186:                term_newln(p);
                   1187:                return;
                   1188:        }
                   1189:
                   1190:        /*
                   1191:         * If we're one of the SYNOPSIS set and non-like pair-wise after
                   1192:         * another (or Fn/Fo, which we've let slip through) then assert
                   1193:         * vertical space, else only newline and move on.
                   1194:         */
                   1195:        switch (n->prev->tok) {
1.264     schwarze 1196:        case MDOC_Fd:
                   1197:        case MDOC_Fn:
                   1198:        case MDOC_Fo:
                   1199:        case MDOC_In:
                   1200:        case MDOC_Vt:
1.143     kristaps 1201:                term_vspace(p);
                   1202:                break;
1.264     schwarze 1203:        case MDOC_Ft:
1.143     kristaps 1204:                if (MDOC_Fn != n->tok && MDOC_Fo != n->tok) {
                   1205:                        term_vspace(p);
                   1206:                        break;
                   1207:                }
                   1208:                /* FALLTHROUGH */
                   1209:        default:
                   1210:                term_newln(p);
                   1211:                break;
                   1212:        }
                   1213: }
                   1214:
1.110     kristaps 1215: static int
                   1216: termp_vt_pre(DECL_ARGS)
                   1217: {
                   1218:
1.314     schwarze 1219:        if (n->type == ROFFT_ELEM) {
1.143     kristaps 1220:                synopsis_pre(p, n);
1.328     schwarze 1221:                return termp_under_pre(p, pair, meta, n);
1.314     schwarze 1222:        } else if (n->type == ROFFT_BLOCK) {
1.143     kristaps 1223:                synopsis_pre(p, n);
1.328     schwarze 1224:                return 1;
1.314     schwarze 1225:        } else if (n->type == ROFFT_HEAD)
1.328     schwarze 1226:                return 0;
1.110     kristaps 1227:
1.328     schwarze 1228:        return termp_under_pre(p, pair, meta, n);
1.110     kristaps 1229: }
                   1230:
1.1       kristaps 1231: static int
1.69      kristaps 1232: termp_bold_pre(DECL_ARGS)
1.1       kristaps 1233: {
                   1234:
1.320     schwarze 1235:        termp_tag_pre(p, pair, meta, n);
1.102     kristaps 1236:        term_fontpush(p, TERMFONT_BOLD);
1.328     schwarze 1237:        return 1;
1.1       kristaps 1238: }
                   1239:
1.143     kristaps 1240: static int
                   1241: termp_fd_pre(DECL_ARGS)
1.1       kristaps 1242: {
                   1243:
1.143     kristaps 1244:        synopsis_pre(p, n);
1.328     schwarze 1245:        return termp_bold_pre(p, pair, meta, n);
1.1       kristaps 1246: }
                   1247:
1.241     schwarze 1248: static void
                   1249: termp_fd_post(DECL_ARGS)
                   1250: {
                   1251:
                   1252:        term_newln(p);
                   1253: }
                   1254:
1.1       kristaps 1255: static int
                   1256: termp_sh_pre(DECL_ARGS)
                   1257: {
1.85      kristaps 1258:
1.86      kristaps 1259:        switch (n->type) {
1.314     schwarze 1260:        case ROFFT_BLOCK:
1.293     schwarze 1261:                /*
                   1262:                 * Vertical space before sections, except
                   1263:                 * when the previous section was empty.
                   1264:                 */
                   1265:                if (n->prev == NULL ||
1.322     schwarze 1266:                    n->prev->tok != MDOC_Sh ||
1.293     schwarze 1267:                    (n->prev->body != NULL &&
                   1268:                     n->prev->body->child != NULL))
                   1269:                        term_vspace(p);
1.65      kristaps 1270:                break;
1.314     schwarze 1271:        case ROFFT_HEAD:
1.102     kristaps 1272:                term_fontpush(p, TERMFONT_BOLD);
1.1       kristaps 1273:                break;
1.314     schwarze 1274:        case ROFFT_BODY:
1.238     schwarze 1275:                p->offset = term_len(p, p->defindent);
1.322     schwarze 1276:                switch (n->sec) {
                   1277:                case SEC_DESCRIPTION:
                   1278:                        fn_prio = 0;
                   1279:                        break;
                   1280:                case SEC_AUTHORS:
1.239     schwarze 1281:                        p->flags &= ~(TERMP_SPLIT|TERMP_NOSPLIT);
1.322     schwarze 1282:                        break;
                   1283:                default:
                   1284:                        break;
                   1285:                }
1.1       kristaps 1286:                break;
                   1287:        default:
                   1288:                break;
                   1289:        }
1.328     schwarze 1290:        return 1;
1.1       kristaps 1291: }
                   1292:
                   1293: static void
                   1294: termp_sh_post(DECL_ARGS)
                   1295: {
                   1296:
1.86      kristaps 1297:        switch (n->type) {
1.314     schwarze 1298:        case ROFFT_HEAD:
1.1       kristaps 1299:                term_newln(p);
                   1300:                break;
1.314     schwarze 1301:        case ROFFT_BODY:
1.1       kristaps 1302:                term_newln(p);
                   1303:                p->offset = 0;
                   1304:                break;
                   1305:        default:
                   1306:                break;
                   1307:        }
                   1308: }
                   1309:
                   1310: static void
                   1311: termp_lb_post(DECL_ARGS)
                   1312: {
                   1313:
1.338     schwarze 1314:        if (SEC_LIBRARY == n->sec && NODE_LINE & n->flags)
1.81      kristaps 1315:                term_newln(p);
1.1       kristaps 1316: }
                   1317:
                   1318: static int
                   1319: termp_d1_pre(DECL_ARGS)
                   1320: {
                   1321:
1.314     schwarze 1322:        if (n->type != ROFFT_BLOCK)
1.328     schwarze 1323:                return 1;
1.1       kristaps 1324:        term_newln(p);
1.238     schwarze 1325:        p->offset += term_len(p, p->defindent + 1);
1.328     schwarze 1326:        return 1;
1.1       kristaps 1327: }
                   1328:
                   1329: static int
                   1330: termp_ft_pre(DECL_ARGS)
                   1331: {
                   1332:
1.338     schwarze 1333:        /* NB: NODE_LINE does not effect this! */
1.143     kristaps 1334:        synopsis_pre(p, n);
1.102     kristaps 1335:        term_fontpush(p, TERMFONT_UNDER);
1.328     schwarze 1336:        return 1;
1.1       kristaps 1337: }
                   1338:
                   1339: static int
                   1340: termp_fn_pre(DECL_ARGS)
                   1341: {
1.257     schwarze 1342:        size_t           rmargin = 0;
1.226     kristaps 1343:        int              pretty;
                   1344:
1.338     schwarze 1345:        pretty = NODE_SYNPRETTY & n->flags;
1.1       kristaps 1346:
1.143     kristaps 1347:        synopsis_pre(p, n);
1.139     kristaps 1348:
1.226     kristaps 1349:        if (NULL == (n = n->child))
1.328     schwarze 1350:                return 0;
1.226     kristaps 1351:
1.251     schwarze 1352:        if (pretty) {
                   1353:                rmargin = p->rmargin;
1.257     schwarze 1354:                p->rmargin = p->offset + term_len(p, 4);
1.263     schwarze 1355:                p->flags |= TERMP_NOBREAK | TERMP_BRIND | TERMP_HANG;
1.251     schwarze 1356:        }
                   1357:
1.314     schwarze 1358:        assert(n->type == ROFFT_TEXT);
1.102     kristaps 1359:        term_fontpush(p, TERMFONT_BOLD);
1.226     kristaps 1360:        term_word(p, n->string);
1.102     kristaps 1361:        term_fontpop(p);
1.1       kristaps 1362:
1.336     schwarze 1363:        if (n->sec == SEC_DESCRIPTION || n->sec == SEC_CUSTOM)
1.324     schwarze 1364:                tag_put(n->string, ++fn_prio, p->line);
1.322     schwarze 1365:
1.251     schwarze 1366:        if (pretty) {
                   1367:                term_flushln(p);
1.263     schwarze 1368:                p->flags &= ~(TERMP_NOBREAK | TERMP_BRIND | TERMP_HANG);
1.251     schwarze 1369:                p->offset = p->rmargin;
                   1370:                p->rmargin = rmargin;
                   1371:        }
                   1372:
1.1       kristaps 1373:        p->flags |= TERMP_NOSPACE;
                   1374:        term_word(p, "(");
1.222     kristaps 1375:        p->flags |= TERMP_NOSPACE;
1.1       kristaps 1376:
1.226     kristaps 1377:        for (n = n->next; n; n = n->next) {
1.314     schwarze 1378:                assert(n->type == ROFFT_TEXT);
1.102     kristaps 1379:                term_fontpush(p, TERMFONT_UNDER);
1.255     schwarze 1380:                if (pretty)
                   1381:                        p->flags |= TERMP_NBRWORD;
1.226     kristaps 1382:                term_word(p, n->string);
1.102     kristaps 1383:                term_fontpop(p);
                   1384:
1.226     kristaps 1385:                if (n->next) {
1.222     kristaps 1386:                        p->flags |= TERMP_NOSPACE;
1.1       kristaps 1387:                        term_word(p, ",");
1.222     kristaps 1388:                }
1.1       kristaps 1389:        }
                   1390:
1.222     kristaps 1391:        p->flags |= TERMP_NOSPACE;
1.1       kristaps 1392:        term_word(p, ")");
                   1393:
1.226     kristaps 1394:        if (pretty) {
1.222     kristaps 1395:                p->flags |= TERMP_NOSPACE;
1.1       kristaps 1396:                term_word(p, ";");
1.251     schwarze 1397:                term_flushln(p);
1.222     kristaps 1398:        }
1.1       kristaps 1399:
1.328     schwarze 1400:        return 0;
1.1       kristaps 1401: }
                   1402:
                   1403: static int
                   1404: termp_fa_pre(DECL_ARGS)
                   1405: {
1.315     schwarze 1406:        const struct roff_node  *nn;
1.1       kristaps 1407:
1.86      kristaps 1408:        if (n->parent->tok != MDOC_Fo) {
1.102     kristaps 1409:                term_fontpush(p, TERMFONT_UNDER);
1.328     schwarze 1410:                return 1;
1.1       kristaps 1411:        }
                   1412:
1.86      kristaps 1413:        for (nn = n->child; nn; nn = nn->next) {
1.102     kristaps 1414:                term_fontpush(p, TERMFONT_UNDER);
1.258     schwarze 1415:                p->flags |= TERMP_NBRWORD;
1.86      kristaps 1416:                term_word(p, nn->string);
1.102     kristaps 1417:                term_fontpop(p);
                   1418:
1.256     schwarze 1419:                if (nn->next || (n->next && n->next->tok == MDOC_Fa)) {
1.222     kristaps 1420:                        p->flags |= TERMP_NOSPACE;
1.1       kristaps 1421:                        term_word(p, ",");
1.222     kristaps 1422:                }
1.1       kristaps 1423:        }
                   1424:
1.328     schwarze 1425:        return 0;
1.1       kristaps 1426: }
                   1427:
                   1428: static int
                   1429: termp_bd_pre(DECL_ARGS)
                   1430: {
1.272     schwarze 1431:        size_t                   tabwidth, lm, len, rm, rmax;
1.315     schwarze 1432:        struct roff_node        *nn;
1.302     schwarze 1433:        int                      offset;
1.1       kristaps 1434:
1.314     schwarze 1435:        if (n->type == ROFFT_BLOCK) {
1.151     kristaps 1436:                print_bvspace(p, n, n);
1.328     schwarze 1437:                return 1;
1.314     schwarze 1438:        } else if (n->type == ROFFT_HEAD)
1.328     schwarze 1439:                return 0;
1.1       kristaps 1440:
1.288     schwarze 1441:        /* Handle the -offset argument. */
                   1442:
                   1443:        if (n->norm->Bd.offs == NULL ||
                   1444:            ! strcmp(n->norm->Bd.offs, "left"))
                   1445:                /* nothing */;
                   1446:        else if ( ! strcmp(n->norm->Bd.offs, "indent"))
                   1447:                p->offset += term_len(p, p->defindent + 1);
                   1448:        else if ( ! strcmp(n->norm->Bd.offs, "indent-two"))
                   1449:                p->offset += term_len(p, (p->defindent + 1) * 2);
1.302     schwarze 1450:        else {
                   1451:                offset = a2width(p, n->norm->Bd.offs);
                   1452:                if (offset < 0 && (size_t)(-offset) > p->offset)
                   1453:                        p->offset = 0;
                   1454:                else if (offset < SHRT_MAX)
                   1455:                        p->offset += offset;
                   1456:        }
1.85      kristaps 1457:
                   1458:        /*
                   1459:         * If -ragged or -filled are specified, the block does nothing
                   1460:         * but change the indentation.  If -unfilled or -literal are
                   1461:         * specified, text is printed exactly as entered in the display:
                   1462:         * for macro lines, a newline is appended to the line.  Blank
                   1463:         * lines are allowed.
                   1464:         */
1.264     schwarze 1465:
                   1466:        if (DISP_literal != n->norm->Bd.type &&
1.272     schwarze 1467:            DISP_unfilled != n->norm->Bd.type &&
                   1468:            DISP_centered != n->norm->Bd.type)
1.328     schwarze 1469:                return 1;
1.1       kristaps 1470:
1.129     schwarze 1471:        tabwidth = p->tabwidth;
1.208     kristaps 1472:        if (DISP_literal == n->norm->Bd.type)
                   1473:                p->tabwidth = term_len(p, 8);
                   1474:
1.272     schwarze 1475:        lm = p->offset;
1.119     kristaps 1476:        rm = p->rmargin;
                   1477:        rmax = p->maxrmargin;
1.120     kristaps 1478:        p->rmargin = p->maxrmargin = TERM_MAXMARGIN;
1.118     kristaps 1479:
1.86      kristaps 1480:        for (nn = n->child; nn; nn = nn->next) {
1.272     schwarze 1481:                if (DISP_centered == n->norm->Bd.type) {
1.314     schwarze 1482:                        if (nn->type == ROFFT_TEXT) {
1.272     schwarze 1483:                                len = term_strlen(p, nn->string);
                   1484:                                p->offset = len >= rm ? 0 :
                   1485:                                    lm + len >= rm ? rm - len :
                   1486:                                    (lm + rm - len) / 2;
                   1487:                        } else
                   1488:                                p->offset = lm;
                   1489:                }
1.245     schwarze 1490:                print_mdoc_node(p, pair, meta, nn);
1.190     kristaps 1491:                /*
                   1492:                 * If the printed node flushes its own line, then we
                   1493:                 * needn't do it here as well.  This is hacky, but the
                   1494:                 * notion of selective eoln whitespace is pretty dumb
                   1495:                 * anyway, so don't sweat it.
                   1496:                 */
                   1497:                switch (nn->tok) {
1.264     schwarze 1498:                case MDOC_Sm:
1.351     schwarze 1499:                case ROFF_br:
1.264     schwarze 1500:                case MDOC_sp:
                   1501:                case MDOC_Bl:
                   1502:                case MDOC_D1:
                   1503:                case MDOC_Dl:
                   1504:                case MDOC_Lp:
                   1505:                case MDOC_Pp:
1.190     kristaps 1506:                        continue;
                   1507:                default:
                   1508:                        break;
                   1509:                }
1.299     schwarze 1510:                if (p->flags & TERMP_NONEWLINE ||
1.338     schwarze 1511:                    (nn->next && ! (nn->next->flags & NODE_LINE)))
1.180     schwarze 1512:                        continue;
                   1513:                term_flushln(p);
                   1514:                p->flags |= TERMP_NOSPACE;
1.1       kristaps 1515:        }
1.147     kristaps 1516:
1.129     schwarze 1517:        p->tabwidth = tabwidth;
1.119     kristaps 1518:        p->rmargin = rm;
                   1519:        p->maxrmargin = rmax;
1.328     schwarze 1520:        return 0;
1.1       kristaps 1521: }
                   1522:
                   1523: static void
                   1524: termp_bd_post(DECL_ARGS)
                   1525: {
1.119     kristaps 1526:        size_t           rm, rmax;
1.1       kristaps 1527:
1.314     schwarze 1528:        if (n->type != ROFFT_BODY)
1.1       kristaps 1529:                return;
1.118     kristaps 1530:
1.119     kristaps 1531:        rm = p->rmargin;
                   1532:        rmax = p->maxrmargin;
1.118     kristaps 1533:
1.264     schwarze 1534:        if (DISP_literal == n->norm->Bd.type ||
                   1535:            DISP_unfilled == n->norm->Bd.type)
1.120     kristaps 1536:                p->rmargin = p->maxrmargin = TERM_MAXMARGIN;
1.118     kristaps 1537:
1.60      kristaps 1538:        p->flags |= TERMP_NOSPACE;
1.130     schwarze 1539:        term_newln(p);
1.118     kristaps 1540:
1.119     kristaps 1541:        p->rmargin = rm;
                   1542:        p->maxrmargin = rmax;
1.1       kristaps 1543: }
                   1544:
                   1545: static int
1.26      kristaps 1546: termp_xx_pre(DECL_ARGS)
1.1       kristaps 1547: {
1.339     schwarze 1548:        if ((n->aux = p->flags & TERMP_PREKEEP) == 0)
                   1549:                p->flags |= TERMP_PREKEEP;
                   1550:        return 1;
                   1551: }
1.1       kristaps 1552:
1.339     schwarze 1553: static void
                   1554: termp_xx_post(DECL_ARGS)
                   1555: {
                   1556:        if (n->aux == 0)
                   1557:                p->flags &= ~(TERMP_KEEP | TERMP_PREKEEP);
1.1       kristaps 1558: }
                   1559:
                   1560: static void
                   1561: termp_pf_post(DECL_ARGS)
                   1562: {
                   1563:
1.338     schwarze 1564:        if ( ! (n->next == NULL || n->next->flags & NODE_LINE))
1.298     schwarze 1565:                p->flags |= TERMP_NOSPACE;
1.1       kristaps 1566: }
                   1567:
                   1568: static int
                   1569: termp_ss_pre(DECL_ARGS)
                   1570: {
1.337     schwarze 1571:        struct roff_node *nn;
1.1       kristaps 1572:
1.86      kristaps 1573:        switch (n->type) {
1.314     schwarze 1574:        case ROFFT_BLOCK:
1.1       kristaps 1575:                term_newln(p);
1.337     schwarze 1576:                for (nn = n->prev; nn != NULL; nn = nn->prev)
                   1577:                        if ((nn->flags & NODE_NOPRT) == 0)
                   1578:                                break;
                   1579:                if (nn != NULL)
1.1       kristaps 1580:                        term_vspace(p);
                   1581:                break;
1.314     schwarze 1582:        case ROFFT_HEAD:
1.102     kristaps 1583:                term_fontpush(p, TERMFONT_BOLD);
1.238     schwarze 1584:                p->offset = term_len(p, (p->defindent+1)/2);
1.1       kristaps 1585:                break;
1.314     schwarze 1586:        case ROFFT_BODY:
1.274     schwarze 1587:                p->offset = term_len(p, p->defindent);
                   1588:                break;
1.1       kristaps 1589:        default:
                   1590:                break;
                   1591:        }
                   1592:
1.328     schwarze 1593:        return 1;
1.1       kristaps 1594: }
                   1595:
                   1596: static void
                   1597: termp_ss_post(DECL_ARGS)
                   1598: {
                   1599:
1.314     schwarze 1600:        if (n->type == ROFFT_HEAD || n->type == ROFFT_BODY)
1.1       kristaps 1601:                term_newln(p);
                   1602: }
                   1603:
                   1604: static int
                   1605: termp_cd_pre(DECL_ARGS)
                   1606: {
                   1607:
1.143     kristaps 1608:        synopsis_pre(p, n);
1.102     kristaps 1609:        term_fontpush(p, TERMFONT_BOLD);
1.328     schwarze 1610:        return 1;
1.1       kristaps 1611: }
                   1612:
                   1613: static int
                   1614: termp_in_pre(DECL_ARGS)
                   1615: {
1.142     schwarze 1616:
1.143     kristaps 1617:        synopsis_pre(p, n);
1.1       kristaps 1618:
1.338     schwarze 1619:        if (NODE_SYNPRETTY & n->flags && NODE_LINE & n->flags) {
1.138     kristaps 1620:                term_fontpush(p, TERMFONT_BOLD);
1.22      kristaps 1621:                term_word(p, "#include");
1.138     kristaps 1622:                term_word(p, "<");
                   1623:        } else {
                   1624:                term_word(p, "<");
                   1625:                term_fontpush(p, TERMFONT_UNDER);
                   1626:        }
1.22      kristaps 1627:
1.1       kristaps 1628:        p->flags |= TERMP_NOSPACE;
1.328     schwarze 1629:        return 1;
1.1       kristaps 1630: }
                   1631:
                   1632: static void
                   1633: termp_in_post(DECL_ARGS)
                   1634: {
                   1635:
1.338     schwarze 1636:        if (NODE_SYNPRETTY & n->flags)
1.138     kristaps 1637:                term_fontpush(p, TERMFONT_BOLD);
                   1638:
1.79      kristaps 1639:        p->flags |= TERMP_NOSPACE;
1.1       kristaps 1640:        term_word(p, ">");
                   1641:
1.338     schwarze 1642:        if (NODE_SYNPRETTY & n->flags)
1.138     kristaps 1643:                term_fontpop(p);
1.1       kristaps 1644: }
                   1645:
                   1646: static int
1.45      kristaps 1647: termp_sp_pre(DECL_ARGS)
                   1648: {
1.300     schwarze 1649:        struct roffsu    su;
1.312     schwarze 1650:        int              i, len;
1.45      kristaps 1651:
1.86      kristaps 1652:        switch (n->tok) {
1.264     schwarze 1653:        case MDOC_sp:
1.300     schwarze 1654:                if (n->child) {
                   1655:                        if ( ! a2roffsu(n->child->string, &su, SCALE_VS))
                   1656:                                su.scale = 1.0;
                   1657:                        len = term_vspan(p, &su);
                   1658:                } else
                   1659:                        len = 1;
1.76      kristaps 1660:                break;
1.351     schwarze 1661:        case ROFF_br:
1.76      kristaps 1662:                len = 0;
                   1663:                break;
                   1664:        default:
                   1665:                len = 1;
1.322     schwarze 1666:                fn_prio = 0;
1.76      kristaps 1667:                break;
1.45      kristaps 1668:        }
                   1669:
                   1670:        if (0 == len)
                   1671:                term_newln(p);
1.312     schwarze 1672:        else if (len < 0)
                   1673:                p->skipvsp -= len;
                   1674:        else
                   1675:                for (i = 0; i < len; i++)
                   1676:                        term_vspace(p);
1.45      kristaps 1677:
1.328     schwarze 1678:        return 0;
1.45      kristaps 1679: }
                   1680:
                   1681: static int
1.294     schwarze 1682: termp_skip_pre(DECL_ARGS)
1.268     schwarze 1683: {
                   1684:
1.328     schwarze 1685:        return 0;
1.268     schwarze 1686: }
                   1687:
                   1688: static int
1.188     kristaps 1689: termp_quote_pre(DECL_ARGS)
1.1       kristaps 1690: {
                   1691:
1.314     schwarze 1692:        if (n->type != ROFFT_BODY && n->type != ROFFT_ELEM)
1.328     schwarze 1693:                return 1;
1.1       kristaps 1694:
1.188     kristaps 1695:        switch (n->tok) {
1.264     schwarze 1696:        case MDOC_Ao:
                   1697:        case MDOC_Aq:
1.331     schwarze 1698:                term_word(p, n->child != NULL && n->child->next == NULL &&
1.303     schwarze 1699:                    n->child->tok == MDOC_Mt ? "<" : "\\(la");
1.188     kristaps 1700:                break;
1.264     schwarze 1701:        case MDOC_Bro:
                   1702:        case MDOC_Brq:
1.188     kristaps 1703:                term_word(p, "{");
                   1704:                break;
1.264     schwarze 1705:        case MDOC_Oo:
                   1706:        case MDOC_Op:
                   1707:        case MDOC_Bo:
                   1708:        case MDOC_Bq:
1.188     kristaps 1709:                term_word(p, "[");
                   1710:                break;
1.346     schwarze 1711:        case MDOC__T:
                   1712:                /* FALLTHROUGH */
1.264     schwarze 1713:        case MDOC_Do:
                   1714:        case MDOC_Dq:
1.311     schwarze 1715:                term_word(p, "\\(Lq");
1.188     kristaps 1716:                break;
1.268     schwarze 1717:        case MDOC_En:
                   1718:                if (NULL == n->norm->Es ||
                   1719:                    NULL == n->norm->Es->child)
1.328     schwarze 1720:                        return 1;
1.268     schwarze 1721:                term_word(p, n->norm->Es->child->string);
                   1722:                break;
1.264     schwarze 1723:        case MDOC_Po:
                   1724:        case MDOC_Pq:
1.188     kristaps 1725:                term_word(p, "(");
                   1726:                break;
1.264     schwarze 1727:        case MDOC_Qo:
                   1728:        case MDOC_Qq:
1.188     kristaps 1729:                term_word(p, "\"");
                   1730:                break;
1.264     schwarze 1731:        case MDOC_Ql:
                   1732:        case MDOC_So:
                   1733:        case MDOC_Sq:
1.249     schwarze 1734:                term_word(p, "\\(oq");
1.188     kristaps 1735:                break;
                   1736:        default:
                   1737:                abort();
                   1738:        }
1.1       kristaps 1739:
                   1740:        p->flags |= TERMP_NOSPACE;
1.328     schwarze 1741:        return 1;
1.1       kristaps 1742: }
                   1743:
                   1744: static void
1.188     kristaps 1745: termp_quote_post(DECL_ARGS)
1.1       kristaps 1746: {
                   1747:
1.314     schwarze 1748:        if (n->type != ROFFT_BODY && n->type != ROFFT_ELEM)
1.1       kristaps 1749:                return;
                   1750:
1.306     schwarze 1751:        p->flags |= TERMP_NOSPACE;
1.1       kristaps 1752:
1.188     kristaps 1753:        switch (n->tok) {
1.264     schwarze 1754:        case MDOC_Ao:
                   1755:        case MDOC_Aq:
1.331     schwarze 1756:                term_word(p, n->child != NULL && n->child->next == NULL &&
1.303     schwarze 1757:                    n->child->tok == MDOC_Mt ? ">" : "\\(ra");
1.188     kristaps 1758:                break;
1.264     schwarze 1759:        case MDOC_Bro:
                   1760:        case MDOC_Brq:
1.188     kristaps 1761:                term_word(p, "}");
                   1762:                break;
1.264     schwarze 1763:        case MDOC_Oo:
                   1764:        case MDOC_Op:
                   1765:        case MDOC_Bo:
                   1766:        case MDOC_Bq:
1.188     kristaps 1767:                term_word(p, "]");
                   1768:                break;
1.346     schwarze 1769:        case MDOC__T:
                   1770:                /* FALLTHROUGH */
1.264     schwarze 1771:        case MDOC_Do:
                   1772:        case MDOC_Dq:
1.311     schwarze 1773:                term_word(p, "\\(Rq");
1.268     schwarze 1774:                break;
                   1775:        case MDOC_En:
1.306     schwarze 1776:                if (n->norm->Es == NULL ||
                   1777:                    n->norm->Es->child == NULL ||
                   1778:                    n->norm->Es->child->next == NULL)
                   1779:                        p->flags &= ~TERMP_NOSPACE;
                   1780:                else
1.268     schwarze 1781:                        term_word(p, n->norm->Es->child->next->string);
1.188     kristaps 1782:                break;
1.264     schwarze 1783:        case MDOC_Po:
                   1784:        case MDOC_Pq:
1.188     kristaps 1785:                term_word(p, ")");
                   1786:                break;
1.264     schwarze 1787:        case MDOC_Qo:
                   1788:        case MDOC_Qq:
1.188     kristaps 1789:                term_word(p, "\"");
                   1790:                break;
1.264     schwarze 1791:        case MDOC_Ql:
                   1792:        case MDOC_So:
                   1793:        case MDOC_Sq:
1.249     schwarze 1794:                term_word(p, "\\(cq");
1.188     kristaps 1795:                break;
                   1796:        default:
                   1797:                abort();
                   1798:        }
1.306     schwarze 1799: }
                   1800:
                   1801: static int
                   1802: termp_eo_pre(DECL_ARGS)
                   1803: {
                   1804:
1.314     schwarze 1805:        if (n->type != ROFFT_BODY)
1.328     schwarze 1806:                return 1;
1.306     schwarze 1807:
                   1808:        if (n->end == ENDBODY_NOT &&
                   1809:            n->parent->head->child == NULL &&
                   1810:            n->child != NULL &&
                   1811:            n->child->end != ENDBODY_NOT)
                   1812:                term_word(p, "\\&");
                   1813:        else if (n->end != ENDBODY_NOT ? n->child != NULL :
1.309     schwarze 1814:             n->parent->head->child != NULL && (n->child != NULL ||
                   1815:             (n->parent->tail != NULL && n->parent->tail->child != NULL)))
1.306     schwarze 1816:                p->flags |= TERMP_NOSPACE;
                   1817:
1.328     schwarze 1818:        return 1;
1.306     schwarze 1819: }
                   1820:
                   1821: static void
                   1822: termp_eo_post(DECL_ARGS)
                   1823: {
                   1824:        int      body, tail;
                   1825:
1.314     schwarze 1826:        if (n->type != ROFFT_BODY)
1.306     schwarze 1827:                return;
                   1828:
                   1829:        if (n->end != ENDBODY_NOT) {
                   1830:                p->flags &= ~TERMP_NOSPACE;
                   1831:                return;
                   1832:        }
                   1833:
                   1834:        body = n->child != NULL || n->parent->head->child != NULL;
                   1835:        tail = n->parent->tail != NULL && n->parent->tail->child != NULL;
                   1836:
                   1837:        if (body && tail)
                   1838:                p->flags |= TERMP_NOSPACE;
                   1839:        else if ( ! (body || tail))
                   1840:                term_word(p, "\\&");
                   1841:        else if ( ! tail)
                   1842:                p->flags &= ~TERMP_NOSPACE;
1.1       kristaps 1843: }
                   1844:
                   1845: static int
                   1846: termp_fo_pre(DECL_ARGS)
                   1847: {
1.257     schwarze 1848:        size_t           rmargin = 0;
1.256     schwarze 1849:        int              pretty;
                   1850:
1.338     schwarze 1851:        pretty = NODE_SYNPRETTY & n->flags;
1.1       kristaps 1852:
1.314     schwarze 1853:        if (n->type == ROFFT_BLOCK) {
1.143     kristaps 1854:                synopsis_pre(p, n);
1.328     schwarze 1855:                return 1;
1.314     schwarze 1856:        } else if (n->type == ROFFT_BODY) {
1.256     schwarze 1857:                if (pretty) {
                   1858:                        rmargin = p->rmargin;
1.257     schwarze 1859:                        p->rmargin = p->offset + term_len(p, 4);
1.263     schwarze 1860:                        p->flags |= TERMP_NOBREAK | TERMP_BRIND |
                   1861:                                        TERMP_HANG;
1.256     schwarze 1862:                }
1.33      kristaps 1863:                p->flags |= TERMP_NOSPACE;
1.1       kristaps 1864:                term_word(p, "(");
1.222     kristaps 1865:                p->flags |= TERMP_NOSPACE;
1.256     schwarze 1866:                if (pretty) {
                   1867:                        term_flushln(p);
1.263     schwarze 1868:                        p->flags &= ~(TERMP_NOBREAK | TERMP_BRIND |
                   1869:                                        TERMP_HANG);
1.256     schwarze 1870:                        p->offset = p->rmargin;
                   1871:                        p->rmargin = rmargin;
                   1872:                }
1.328     schwarze 1873:                return 1;
1.256     schwarze 1874:        }
1.141     kristaps 1875:
1.169     kristaps 1876:        if (NULL == n->child)
1.328     schwarze 1877:                return 0;
1.169     kristaps 1878:
1.141     kristaps 1879:        /* XXX: we drop non-initial arguments as per groff. */
1.1       kristaps 1880:
1.141     kristaps 1881:        assert(n->child->string);
1.102     kristaps 1882:        term_fontpush(p, TERMFONT_BOLD);
1.141     kristaps 1883:        term_word(p, n->child->string);
1.328     schwarze 1884:        return 0;
1.1       kristaps 1885: }
                   1886:
                   1887: static void
                   1888: termp_fo_post(DECL_ARGS)
                   1889: {
                   1890:
1.314     schwarze 1891:        if (n->type != ROFFT_BODY)
1.143     kristaps 1892:                return;
                   1893:
1.222     kristaps 1894:        p->flags |= TERMP_NOSPACE;
1.143     kristaps 1895:        term_word(p, ")");
                   1896:
1.338     schwarze 1897:        if (NODE_SYNPRETTY & n->flags) {
1.222     kristaps 1898:                p->flags |= TERMP_NOSPACE;
1.143     kristaps 1899:                term_word(p, ";");
1.256     schwarze 1900:                term_flushln(p);
1.222     kristaps 1901:        }
1.1       kristaps 1902: }
                   1903:
                   1904: static int
                   1905: termp_bf_pre(DECL_ARGS)
                   1906: {
                   1907:
1.314     schwarze 1908:        if (n->type == ROFFT_HEAD)
1.328     schwarze 1909:                return 0;
1.314     schwarze 1910:        else if (n->type != ROFFT_BODY)
1.328     schwarze 1911:                return 1;
1.1       kristaps 1912:
1.264     schwarze 1913:        if (FONT_Em == n->norm->Bf.font)
1.102     kristaps 1914:                term_fontpush(p, TERMFONT_UNDER);
1.264     schwarze 1915:        else if (FONT_Sy == n->norm->Bf.font)
1.102     kristaps 1916:                term_fontpush(p, TERMFONT_BOLD);
1.264     schwarze 1917:        else
1.102     kristaps 1918:                term_fontpush(p, TERMFONT_NONE);
1.1       kristaps 1919:
1.328     schwarze 1920:        return 1;
1.1       kristaps 1921: }
                   1922:
                   1923: static int
                   1924: termp_sm_pre(DECL_ARGS)
                   1925: {
                   1926:
1.269     schwarze 1927:        if (NULL == n->child)
                   1928:                p->flags ^= TERMP_NONOSPACE;
                   1929:        else if (0 == strcmp("on", n->child->string))
1.1       kristaps 1930:                p->flags &= ~TERMP_NONOSPACE;
1.269     schwarze 1931:        else
1.1       kristaps 1932:                p->flags |= TERMP_NONOSPACE;
1.269     schwarze 1933:
                   1934:        if (p->col && ! (TERMP_NONOSPACE & p->flags))
                   1935:                p->flags &= ~TERMP_NOSPACE;
1.1       kristaps 1936:
1.328     schwarze 1937:        return 0;
1.1       kristaps 1938: }
                   1939:
                   1940: static int
                   1941: termp_ap_pre(DECL_ARGS)
                   1942: {
                   1943:
                   1944:        p->flags |= TERMP_NOSPACE;
1.188     kristaps 1945:        term_word(p, "'");
1.1       kristaps 1946:        p->flags |= TERMP_NOSPACE;
1.328     schwarze 1947:        return 1;
1.1       kristaps 1948: }
                   1949:
                   1950: static void
                   1951: termp____post(DECL_ARGS)
                   1952: {
1.184     kristaps 1953:
                   1954:        /*
                   1955:         * Handle lists of authors.  In general, print each followed by
                   1956:         * a comma.  Don't print the comma if there are only two
                   1957:         * authors.
                   1958:         */
                   1959:        if (MDOC__A == n->tok && n->next && MDOC__A == n->next->tok)
                   1960:                if (NULL == n->next->next || MDOC__A != n->next->next->tok)
                   1961:                        if (NULL == n->prev || MDOC__A != n->prev->tok)
                   1962:                                return;
1.1       kristaps 1963:
1.95      kristaps 1964:        /* TODO: %U. */
                   1965:
1.187     kristaps 1966:        if (NULL == n->parent || MDOC_Rs != n->parent->tok)
                   1967:                return;
                   1968:
1.222     kristaps 1969:        p->flags |= TERMP_NOSPACE;
1.186     kristaps 1970:        if (NULL == n->next) {
                   1971:                term_word(p, ".");
                   1972:                p->flags |= TERMP_SENTENCE;
                   1973:        } else
                   1974:                term_word(p, ",");
1.1       kristaps 1975: }
                   1976:
                   1977: static int
1.102     kristaps 1978: termp_li_pre(DECL_ARGS)
                   1979: {
                   1980:
1.335     schwarze 1981:        termp_tag_pre(p, pair, meta, n);
1.102     kristaps 1982:        term_fontpush(p, TERMFONT_NONE);
1.328     schwarze 1983:        return 1;
1.102     kristaps 1984: }
                   1985:
                   1986: static int
1.1       kristaps 1987: termp_lk_pre(DECL_ARGS)
                   1988: {
1.315     schwarze 1989:        const struct roff_node *link, *descr;
1.348     schwarze 1990:        int display;
1.1       kristaps 1991:
1.349     schwarze 1992:        if ((link = n->child) == NULL)
1.328     schwarze 1993:                return 0;
1.181     kristaps 1994:
1.349     schwarze 1995:        /* Link text. */
                   1996:        if ((descr = link->next) != NULL && !(descr->flags & NODE_DELIMC)) {
1.240     schwarze 1997:                term_fontpush(p, TERMFONT_UNDER);
1.349     schwarze 1998:                while (descr != NULL && !(descr->flags & NODE_DELIMC)) {
1.240     schwarze 1999:                        term_word(p, descr->string);
                   2000:                        descr = descr->next;
                   2001:                }
1.347     schwarze 2002:                term_fontpop(p);
1.240     schwarze 2003:                p->flags |= TERMP_NOSPACE;
                   2004:                term_word(p, ":");
                   2005:        }
1.1       kristaps 2006:
1.349     schwarze 2007:        /* Link target. */
1.348     schwarze 2008:        display = term_strlen(p, link->string) >= 26;
                   2009:        if (display) {
                   2010:                term_newln(p);
                   2011:                p->offset += term_len(p, p->defindent + 1);
                   2012:        }
1.102     kristaps 2013:        term_fontpush(p, TERMFONT_BOLD);
1.240     schwarze 2014:        term_word(p, link->string);
1.102     kristaps 2015:        term_fontpop(p);
1.348     schwarze 2016:
1.349     schwarze 2017:        /* Trailing punctuation. */
                   2018:        while (descr != NULL) {
                   2019:                p->flags |= TERMP_NOSPACE;
                   2020:                term_word(p, descr->string);
                   2021:                descr = descr->next;
                   2022:        }
1.348     schwarze 2023:        if (display)
                   2024:                term_newln(p);
1.328     schwarze 2025:        return 0;
1.1       kristaps 2026: }
                   2027:
1.159     schwarze 2028: static int
                   2029: termp_bk_pre(DECL_ARGS)
                   2030: {
                   2031:
1.161     schwarze 2032:        switch (n->type) {
1.314     schwarze 2033:        case ROFFT_BLOCK:
1.166     kristaps 2034:                break;
1.314     schwarze 2035:        case ROFFT_HEAD:
1.328     schwarze 2036:                return 0;
1.314     schwarze 2037:        case ROFFT_BODY:
1.331     schwarze 2038:                if (n->parent->args != NULL || n->prev->child == NULL)
1.200     schwarze 2039:                        p->flags |= TERMP_PREKEEP;
1.166     kristaps 2040:                break;
1.161     schwarze 2041:        default:
                   2042:                abort();
                   2043:        }
1.166     kristaps 2044:
1.328     schwarze 2045:        return 1;
1.159     schwarze 2046: }
                   2047:
                   2048: static void
                   2049: termp_bk_post(DECL_ARGS)
                   2050: {
                   2051:
1.314     schwarze 2052:        if (n->type == ROFFT_BODY)
1.161     schwarze 2053:                p->flags &= ~(TERMP_KEEP | TERMP_PREKEEP);
1.203     kristaps 2054: }
                   2055:
                   2056: static void
                   2057: termp__t_post(DECL_ARGS)
                   2058: {
                   2059:
                   2060:        /*
                   2061:         * If we're in an `Rs' and there's a journal present, then quote
                   2062:         * us instead of underlining us (for disambiguation).
                   2063:         */
1.217     schwarze 2064:        if (n->parent && MDOC_Rs == n->parent->tok &&
1.264     schwarze 2065:            n->parent->norm->Rs.quote_T)
1.245     schwarze 2066:                termp_quote_post(p, pair, meta, n);
1.203     kristaps 2067:
1.245     schwarze 2068:        termp____post(p, pair, meta, n);
1.203     kristaps 2069: }
                   2070:
                   2071: static int
                   2072: termp__t_pre(DECL_ARGS)
                   2073: {
                   2074:
                   2075:        /*
                   2076:         * If we're in an `Rs' and there's a journal present, then quote
                   2077:         * us instead of underlining us (for disambiguation).
                   2078:         */
                   2079:        if (n->parent && MDOC_Rs == n->parent->tok &&
1.264     schwarze 2080:            n->parent->norm->Rs.quote_T)
1.328     schwarze 2081:                return termp_quote_pre(p, pair, meta, n);
1.203     kristaps 2082:
                   2083:        term_fontpush(p, TERMFONT_UNDER);
1.328     schwarze 2084:        return 1;
1.159     schwarze 2085: }
1.1       kristaps 2086:
                   2087: static int
1.69      kristaps 2088: termp_under_pre(DECL_ARGS)
1.1       kristaps 2089: {
                   2090:
1.102     kristaps 2091:        term_fontpush(p, TERMFONT_UNDER);
1.334     schwarze 2092:        return 1;
                   2093: }
                   2094:
                   2095: static int
                   2096: termp_em_pre(DECL_ARGS)
                   2097: {
                   2098:        if (n->child != NULL &&
                   2099:            n->child->type == ROFFT_TEXT)
                   2100:                tag_put(n->child->string, 0, p->line);
                   2101:        term_fontpush(p, TERMFONT_UNDER);
                   2102:        return 1;
                   2103: }
                   2104:
                   2105: static int
                   2106: termp_sy_pre(DECL_ARGS)
                   2107: {
                   2108:        if (n->child != NULL &&
                   2109:            n->child->type == ROFFT_TEXT)
                   2110:                tag_put(n->child->string, 0, p->line);
                   2111:        term_fontpush(p, TERMFONT_BOLD);
1.328     schwarze 2112:        return 1;
1.323     schwarze 2113: }
                   2114:
                   2115: static int
                   2116: termp_er_pre(DECL_ARGS)
                   2117: {
                   2118:
                   2119:        if (n->sec == SEC_ERRORS &&
                   2120:            (n->parent->tok == MDOC_It ||
                   2121:             (n->parent->tok == MDOC_Bq &&
1.324     schwarze 2122:              n->parent->parent->parent->tok == MDOC_It)))
                   2123:                tag_put(n->child->string, 1, p->line);
1.328     schwarze 2124:        return 1;
1.320     schwarze 2125: }
                   2126:
                   2127: static int
                   2128: termp_tag_pre(DECL_ARGS)
                   2129: {
                   2130:
                   2131:        if (n->child != NULL &&
                   2132:            n->child->type == ROFFT_TEXT &&
1.333     schwarze 2133:            (n->prev == NULL ||
                   2134:             (n->prev->type == ROFFT_TEXT &&
                   2135:              strcmp(n->prev->string, "|") == 0)) &&
1.320     schwarze 2136:            (n->parent->tok == MDOC_It ||
                   2137:             (n->parent->tok == MDOC_Xo &&
                   2138:              n->parent->parent->prev == NULL &&
1.324     schwarze 2139:              n->parent->parent->parent->tok == MDOC_It)))
                   2140:                tag_put(n->child->string, 1, p->line);
1.328     schwarze 2141:        return 1;
1.84      kristaps 2142: }

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