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Annotation of mandoc/man_html.c, Revision 1.71

1.71    ! kristaps    1: /*     $Id: man_html.c,v 1.70 2011/03/07 01:35:51 schwarze Exp $ */
1.1       kristaps    2: /*
1.70      schwarze    3:  * Copyright (c) 2008, 2009, 2010, 2011 Kristaps Dzonsons <kristaps@bsd.lv>
1.1       kristaps    4:  *
                      5:  * Permission to use, copy, modify, and distribute this software for any
                      6:  * purpose with or without fee is hereby granted, provided that the above
                      7:  * copyright notice and this permission notice appear in all copies.
                      8:  *
                      9:  * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
                     10:  * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
                     11:  * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
                     12:  * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
                     13:  * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
                     14:  * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
                     15:  * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
                     16:  */
1.25      kristaps   17: #ifdef HAVE_CONFIG_H
                     18: #include "config.h"
                     19: #endif
                     20:
1.1       kristaps   21: #include <sys/types.h>
                     22:
1.5       kristaps   23: #include <assert.h>
                     24: #include <ctype.h>
1.2       kristaps   25: #include <stdio.h>
1.1       kristaps   26: #include <stdlib.h>
1.4       kristaps   27: #include <string.h>
1.1       kristaps   28:
1.35      kristaps   29: #include "mandoc.h"
1.7       kristaps   30: #include "out.h"
1.1       kristaps   31: #include "html.h"
                     32: #include "man.h"
1.10      kristaps   33: #include "main.h"
1.1       kristaps   34:
1.6       kristaps   35: /* TODO: preserve ident widths. */
1.13      kristaps   36: /* FIXME: have PD set the default vspace width. */
1.6       kristaps   37:
                     38: #define        INDENT            5
1.4       kristaps   39: #define        HALFINDENT        3
                     40:
1.3       kristaps   41: #define        MAN_ARGS          const struct man_meta *m, \
                     42:                          const struct man_node *n, \
1.45      kristaps   43:                          struct mhtml *mh, \
1.3       kristaps   44:                          struct html *h
                     45:
1.45      kristaps   46: struct mhtml {
                     47:        int               fl;
                     48: #define        MANH_LITERAL     (1 << 0) /* literal context */
                     49: };
                     50:
1.3       kristaps   51: struct htmlman {
                     52:        int             (*pre)(MAN_ARGS);
                     53:        int             (*post)(MAN_ARGS);
                     54: };
                     55:
                     56: static void              print_man(MAN_ARGS);
                     57: static void              print_man_head(MAN_ARGS);
1.4       kristaps   58: static void              print_man_nodelist(MAN_ARGS);
                     59: static void              print_man_node(MAN_ARGS);
1.3       kristaps   60:
1.7       kristaps   61: static int               a2width(const struct man_node *,
                     62:                                struct roffsu *);
1.5       kristaps   63:
1.8       kristaps   64: static int               man_alt_pre(MAN_ARGS);
1.4       kristaps   65: static int               man_br_pre(MAN_ARGS);
1.8       kristaps   66: static int               man_ign_pre(MAN_ARGS);
1.45      kristaps   67: static int               man_in_pre(MAN_ARGS);
                     68: static int               man_literal_pre(MAN_ARGS);
1.8       kristaps   69: static void              man_root_post(MAN_ARGS);
1.65      kristaps   70: static void              man_root_pre(MAN_ARGS);
1.8       kristaps   71: static int               man_B_pre(MAN_ARGS);
1.6       kristaps   72: static int               man_HP_pre(MAN_ARGS);
1.8       kristaps   73: static int               man_I_pre(MAN_ARGS);
1.5       kristaps   74: static int               man_IP_pre(MAN_ARGS);
1.4       kristaps   75: static int               man_PP_pre(MAN_ARGS);
1.9       kristaps   76: static int               man_RS_pre(MAN_ARGS);
1.4       kristaps   77: static int               man_SH_pre(MAN_ARGS);
1.8       kristaps   78: static int               man_SM_pre(MAN_ARGS);
1.4       kristaps   79: static int               man_SS_pre(MAN_ARGS);
                     80:
1.3       kristaps   81: static const struct htmlman mans[MAN_MAX] = {
1.4       kristaps   82:        { man_br_pre, NULL }, /* br */
1.3       kristaps   83:        { NULL, NULL }, /* TH */
1.4       kristaps   84:        { man_SH_pre, NULL }, /* SH */
                     85:        { man_SS_pre, NULL }, /* SS */
1.6       kristaps   86:        { man_IP_pre, NULL }, /* TP */
1.4       kristaps   87:        { man_PP_pre, NULL }, /* LP */
                     88:        { man_PP_pre, NULL }, /* PP */
                     89:        { man_PP_pre, NULL }, /* P */
1.5       kristaps   90:        { man_IP_pre, NULL }, /* IP */
1.6       kristaps   91:        { man_HP_pre, NULL }, /* HP */
1.8       kristaps   92:        { man_SM_pre, NULL }, /* SM */
1.56      kristaps   93:        { man_SM_pre, NULL }, /* SB */
1.8       kristaps   94:        { man_alt_pre, NULL }, /* BI */
                     95:        { man_alt_pre, NULL }, /* IB */
                     96:        { man_alt_pre, NULL }, /* BR */
                     97:        { man_alt_pre, NULL }, /* RB */
1.3       kristaps   98:        { NULL, NULL }, /* R */
1.8       kristaps   99:        { man_B_pre, NULL }, /* B */
                    100:        { man_I_pre, NULL }, /* I */
                    101:        { man_alt_pre, NULL }, /* IR */
                    102:        { man_alt_pre, NULL }, /* RI */
1.67      schwarze  103:        { man_ign_pre, NULL }, /* na */
1.4       kristaps  104:        { man_br_pre, NULL }, /* sp */
1.45      kristaps  105:        { man_literal_pre, NULL }, /* nf */
                    106:        { man_literal_pre, NULL }, /* fi */
1.3       kristaps  107:        { NULL, NULL }, /* RE */
1.9       kristaps  108:        { man_RS_pre, NULL }, /* RS */
1.8       kristaps  109:        { man_ign_pre, NULL }, /* DT */
                    110:        { man_ign_pre, NULL }, /* UC */
1.13      kristaps  111:        { man_ign_pre, NULL }, /* PD */
1.34      joerg     112:        { man_ign_pre, NULL }, /* AT */
1.45      kristaps  113:        { man_in_pre, NULL }, /* in */
1.51      kristaps  114:        { man_ign_pre, NULL }, /* ft */
1.3       kristaps  115: };
                    116:
1.1       kristaps  117:
                    118: void
                    119: html_man(void *arg, const struct man *m)
                    120: {
1.3       kristaps  121:        struct html     *h;
                    122:        struct tag      *t;
1.45      kristaps  123:        struct mhtml     mh;
1.3       kristaps  124:
                    125:        h = (struct html *)arg;
                    126:
1.26      kristaps  127:        print_gen_decls(h);
1.3       kristaps  128:
1.45      kristaps  129:        memset(&mh, 0, sizeof(struct mhtml));
                    130:
1.3       kristaps  131:        t = print_otag(h, TAG_HTML, 0, NULL);
1.45      kristaps  132:        print_man(man_meta(m), man_node(m), &mh, h);
1.3       kristaps  133:        print_tagq(h, t);
                    134:
                    135:        printf("\n");
                    136: }
                    137:
                    138:
                    139: static void
                    140: print_man(MAN_ARGS)
                    141: {
                    142:        struct tag      *t;
                    143:
                    144:        t = print_otag(h, TAG_HEAD, 0, NULL);
1.45      kristaps  145:        print_man_head(m, n, mh, h);
1.3       kristaps  146:        print_tagq(h, t);
1.53      kristaps  147:
1.3       kristaps  148:        t = print_otag(h, TAG_BODY, 0, NULL);
1.45      kristaps  149:        print_man_nodelist(m, n, mh, h);
1.3       kristaps  150:        print_tagq(h, t);
                    151: }
                    152:
                    153:
                    154: /* ARGSUSED */
                    155: static void
                    156: print_man_head(MAN_ARGS)
                    157: {
                    158:
                    159:        print_gen_head(h);
                    160:        bufinit(h);
1.71    ! kristaps  161:        bufcat_fmt(h, "%s(%s)", m->title, m->msec);
1.3       kristaps  162:
                    163:        print_otag(h, TAG_TITLE, 0, NULL);
                    164:        print_text(h, h->buf);
1.1       kristaps  165: }
1.4       kristaps  166:
                    167:
                    168: static void
                    169: print_man_nodelist(MAN_ARGS)
                    170: {
                    171:
1.45      kristaps  172:        print_man_node(m, n, mh, h);
1.4       kristaps  173:        if (n->next)
1.45      kristaps  174:                print_man_nodelist(m, n->next, mh, h);
1.4       kristaps  175: }
                    176:
                    177:
                    178: static void
                    179: print_man_node(MAN_ARGS)
                    180: {
                    181:        int              child;
                    182:        struct tag      *t;
1.69      kristaps  183:        struct htmlpair  tag;
1.4       kristaps  184:
                    185:        child = 1;
1.14      kristaps  186:        t = h->tags.head;
1.4       kristaps  187:        bufinit(h);
                    188:
                    189:        switch (n->type) {
                    190:        case (MAN_ROOT):
1.65      kristaps  191:                man_root_pre(m, n, mh, h);
1.4       kristaps  192:                break;
                    193:        case (MAN_TEXT):
1.65      kristaps  194:                /*
                    195:                 * If we have a blank line, output a vertical space.
                    196:                 * If we have a space as the first character, break
                    197:                 * before printing the line's data.
                    198:                 */
1.63      kristaps  199:                if ('\0' == *n->string) {
                    200:                        print_otag(h, TAG_P, 0, NULL);
                    201:                        return;
1.64      kristaps  202:                } else if (' ' == *n->string && MAN_LINE & n->flags)
1.63      kristaps  203:                        print_otag(h, TAG_BR, 0, NULL);
                    204:
1.4       kristaps  205:                print_text(h, n->string);
1.63      kristaps  206:
1.65      kristaps  207:                /*
                    208:                 * If we're in a literal context, make sure that words
                    209:                 * togehter on the same line stay together.  This is a
                    210:                 * POST-printing call, so we check the NEXT word.  Since
                    211:                 * -man doesn't have nested macros, we don't need to be
                    212:                 * more specific than this.
                    213:                 */
1.64      kristaps  214:                if (MANH_LITERAL & mh->fl &&
                    215:                                (NULL == n->next ||
                    216:                                 n->next->line > n->line))
1.45      kristaps  217:                        print_otag(h, TAG_BR, 0, NULL);
1.68      kristaps  218:                return;
                    219:        case (MAN_EQN):
1.69      kristaps  220:                PAIR_CLASS_INIT(&tag, "eqn");
                    221:                print_otag(h, TAG_SPAN, 1, &tag);
                    222:                print_text(h, n->eqn->data);
                    223:                break;
1.58      kristaps  224:        case (MAN_TBL):
1.66      kristaps  225:                /*
                    226:                 * This will take care of initialising all of the table
                    227:                 * state data for the first table, then tearing it down
                    228:                 * for the last one.
                    229:                 */
1.60      kristaps  230:                print_tbl(h, n->span);
1.64      kristaps  231:                return;
1.4       kristaps  232:        default:
1.21      kristaps  233:                /*
                    234:                 * Close out scope of font prior to opening a macro
1.66      kristaps  235:                 * scope.
1.21      kristaps  236:                 */
1.57      kristaps  237:                if (HTMLFONT_NONE != h->metac) {
                    238:                        h->metal = h->metac;
                    239:                        h->metac = HTMLFONT_NONE;
1.66      kristaps  240:                }
                    241:
                    242:                /*
                    243:                 * Close out the current table, if it's open, and unset
                    244:                 * the "meta" table state.  This will be reopened on the
                    245:                 * next table element.
                    246:                 */
                    247:                if (h->tblt) {
                    248:                        print_tblclose(h);
                    249:                        t = h->tags.head;
1.20      kristaps  250:                }
1.4       kristaps  251:                if (mans[n->tok].pre)
1.45      kristaps  252:                        child = (*mans[n->tok].pre)(m, n, mh, h);
1.4       kristaps  253:                break;
                    254:        }
                    255:
1.21      kristaps  256:        if (child && n->child)
1.45      kristaps  257:                print_man_nodelist(m, n->child, mh, h);
1.21      kristaps  258:
1.24      kristaps  259:        /* This will automatically close out any font scope. */
1.4       kristaps  260:        print_stagq(h, t);
                    261:
                    262:        bufinit(h);
                    263:
1.61      kristaps  264:        switch (n->type) {
                    265:        case (MAN_ROOT):
1.45      kristaps  266:                man_root_post(m, n, mh, h);
1.69      kristaps  267:                break;
                    268:        case (MAN_EQN):
1.61      kristaps  269:                break;
                    270:        default:
                    271:                if (mans[n->tok].post)
                    272:                        (*mans[n->tok].post)(m, n, mh, h);
                    273:                break;
                    274:        }
1.4       kristaps  275: }
                    276:
                    277:
1.5       kristaps  278: static int
1.7       kristaps  279: a2width(const struct man_node *n, struct roffsu *su)
1.5       kristaps  280: {
                    281:
1.6       kristaps  282:        if (MAN_TEXT != n->type)
1.7       kristaps  283:                return(0);
1.11      kristaps  284:        if (a2roffsu(n->string, su, SCALE_BU))
1.7       kristaps  285:                return(1);
1.5       kristaps  286:
1.7       kristaps  287:        return(0);
1.5       kristaps  288: }
                    289:
                    290:
1.40      kristaps  291: /* ARGSUSED */
1.65      kristaps  292: static void
1.4       kristaps  293: man_root_pre(MAN_ARGS)
                    294: {
1.56      kristaps  295:        struct htmlpair  tag[3];
1.4       kristaps  296:        struct tag      *t, *tt;
                    297:        char             b[BUFSIZ], title[BUFSIZ];
                    298:
                    299:        b[0] = 0;
                    300:        if (m->vol)
                    301:                (void)strlcat(b, m->vol, BUFSIZ);
                    302:
1.31      kristaps  303:        snprintf(title, BUFSIZ - 1, "%s(%s)", m->title, m->msec);
1.4       kristaps  304:
1.56      kristaps  305:        PAIR_SUMMARY_INIT(&tag[0], "Document Header");
                    306:        PAIR_CLASS_INIT(&tag[1], "head");
                    307:        if (NULL == h->style) {
                    308:                PAIR_INIT(&tag[2], ATTR_WIDTH, "100%");
                    309:                t = print_otag(h, TAG_TABLE, 3, tag);
                    310:                PAIR_INIT(&tag[0], ATTR_WIDTH, "30%");
                    311:                print_otag(h, TAG_COL, 1, tag);
                    312:                print_otag(h, TAG_COL, 1, tag);
                    313:                print_otag(h, TAG_COL, 1, tag);
                    314:        } else
                    315:                t = print_otag(h, TAG_TABLE, 2, tag);
                    316:
                    317:        print_otag(h, TAG_TBODY, 0, NULL);
1.15      kristaps  318:
1.4       kristaps  319:        tt = print_otag(h, TAG_TR, 0, NULL);
                    320:
1.55      kristaps  321:        PAIR_CLASS_INIT(&tag[0], "head-ltitle");
1.4       kristaps  322:        print_otag(h, TAG_TD, 1, tag);
1.55      kristaps  323:
1.4       kristaps  324:        print_text(h, title);
                    325:        print_stagq(h, tt);
                    326:
1.55      kristaps  327:        PAIR_CLASS_INIT(&tag[0], "head-vol");
1.56      kristaps  328:        if (NULL == h->style) {
                    329:                PAIR_INIT(&tag[1], ATTR_ALIGN, "center");
                    330:                print_otag(h, TAG_TD, 2, tag);
                    331:        } else
                    332:                print_otag(h, TAG_TD, 1, tag);
1.55      kristaps  333:
1.4       kristaps  334:        print_text(h, b);
                    335:        print_stagq(h, tt);
                    336:
1.55      kristaps  337:        PAIR_CLASS_INIT(&tag[0], "head-rtitle");
1.56      kristaps  338:        if (NULL == h->style) {
                    339:                PAIR_INIT(&tag[1], ATTR_ALIGN, "right");
                    340:                print_otag(h, TAG_TD, 2, tag);
                    341:        } else
                    342:                print_otag(h, TAG_TD, 1, tag);
1.55      kristaps  343:
1.4       kristaps  344:        print_text(h, title);
                    345:        print_tagq(h, t);
                    346: }
                    347:
                    348:
                    349: /* ARGSUSED */
                    350: static void
                    351: man_root_post(MAN_ARGS)
                    352: {
1.56      kristaps  353:        struct htmlpair  tag[3];
1.4       kristaps  354:        struct tag      *t, *tt;
                    355:
1.56      kristaps  356:        PAIR_SUMMARY_INIT(&tag[0], "Document Footer");
                    357:        PAIR_CLASS_INIT(&tag[1], "foot");
                    358:        if (NULL == h->style) {
                    359:                PAIR_INIT(&tag[2], ATTR_WIDTH, "100%");
                    360:                t = print_otag(h, TAG_TABLE, 3, tag);
                    361:                PAIR_INIT(&tag[0], ATTR_WIDTH, "50%");
                    362:                print_otag(h, TAG_COL, 1, tag);
                    363:                print_otag(h, TAG_COL, 1, tag);
                    364:        } else
                    365:                t = print_otag(h, TAG_TABLE, 2, tag);
1.15      kristaps  366:
1.4       kristaps  367:        tt = print_otag(h, TAG_TR, 0, NULL);
                    368:
1.55      kristaps  369:        PAIR_CLASS_INIT(&tag[0], "foot-date");
1.4       kristaps  370:        print_otag(h, TAG_TD, 1, tag);
1.55      kristaps  371:
1.70      schwarze  372:        print_text(h, m->date);
1.4       kristaps  373:        print_stagq(h, tt);
                    374:
1.55      kristaps  375:        PAIR_CLASS_INIT(&tag[0], "foot-os");
1.56      kristaps  376:        if (NULL == h->style) {
                    377:                PAIR_INIT(&tag[1], ATTR_ALIGN, "right");
                    378:                print_otag(h, TAG_TD, 2, tag);
                    379:        } else
                    380:                print_otag(h, TAG_TD, 1, tag);
1.55      kristaps  381:
1.4       kristaps  382:        if (m->source)
                    383:                print_text(h, m->source);
                    384:        print_tagq(h, t);
                    385: }
                    386:
                    387:
                    388:
                    389: /* ARGSUSED */
                    390: static int
                    391: man_br_pre(MAN_ARGS)
                    392: {
1.7       kristaps  393:        struct roffsu    su;
                    394:        struct htmlpair  tag;
1.4       kristaps  395:
1.7       kristaps  396:        SCALE_VS_INIT(&su, 1);
                    397:
1.49      kristaps  398:        if (MAN_sp == n->tok) {
1.29      kristaps  399:                if (n->child)
                    400:                        a2roffsu(n->child->string, &su, SCALE_VS);
1.49      kristaps  401:        } else
1.7       kristaps  402:                su.scale = 0;
1.4       kristaps  403:
1.7       kristaps  404:        bufcat_su(h, "height", &su);
                    405:        PAIR_STYLE_INIT(&tag, h);
1.4       kristaps  406:        print_otag(h, TAG_DIV, 1, &tag);
1.24      kristaps  407:
1.16      kristaps  408:        /* So the div isn't empty: */
                    409:        print_text(h, "\\~");
                    410:
1.7       kristaps  411:        return(0);
1.4       kristaps  412: }
                    413:
                    414:
                    415: /* ARGSUSED */
                    416: static int
                    417: man_SH_pre(MAN_ARGS)
                    418: {
1.54      kristaps  419:        struct htmlpair  tag;
1.4       kristaps  420:
1.54      kristaps  421:        if (MAN_BLOCK == n->type) {
                    422:                PAIR_CLASS_INIT(&tag, "section");
                    423:                print_otag(h, TAG_DIV, 1, &tag);
1.4       kristaps  424:                return(1);
1.54      kristaps  425:        } else if (MAN_BODY == n->type)
1.4       kristaps  426:                return(1);
                    427:
1.54      kristaps  428:        print_otag(h, TAG_H1, 0, NULL);
1.4       kristaps  429:        return(1);
                    430: }
                    431:
                    432:
                    433: /* ARGSUSED */
                    434: static int
1.8       kristaps  435: man_alt_pre(MAN_ARGS)
                    436: {
                    437:        const struct man_node   *nn;
1.57      kristaps  438:        int              i;
                    439:        enum htmltag     fp;
                    440:        struct tag      *t;
1.8       kristaps  441:
                    442:        for (i = 0, nn = n->child; nn; nn = nn->next, i++) {
1.57      kristaps  443:                t = NULL;
1.8       kristaps  444:                switch (n->tok) {
                    445:                case (MAN_BI):
1.57      kristaps  446:                        fp = i % 2 ? TAG_I : TAG_B;
1.8       kristaps  447:                        break;
                    448:                case (MAN_IB):
1.57      kristaps  449:                        fp = i % 2 ? TAG_B : TAG_I;
1.8       kristaps  450:                        break;
                    451:                case (MAN_RI):
1.57      kristaps  452:                        fp = i % 2 ? TAG_I : TAG_MAX;
1.8       kristaps  453:                        break;
                    454:                case (MAN_IR):
1.57      kristaps  455:                        fp = i % 2 ? TAG_MAX : TAG_I;
1.8       kristaps  456:                        break;
                    457:                case (MAN_BR):
1.57      kristaps  458:                        fp = i % 2 ? TAG_MAX : TAG_B;
1.8       kristaps  459:                        break;
                    460:                case (MAN_RB):
1.57      kristaps  461:                        fp = i % 2 ? TAG_B : TAG_MAX;
1.8       kristaps  462:                        break;
                    463:                default:
                    464:                        abort();
                    465:                        /* NOTREACHED */
                    466:                }
                    467:
                    468:                if (i)
                    469:                        h->flags |= HTML_NOSPACE;
                    470:
1.57      kristaps  471:                if (TAG_MAX != fp)
                    472:                        t = print_otag(h, fp, 0, NULL);
                    473:
1.45      kristaps  474:                print_man_node(m, nn, mh, h);
1.57      kristaps  475:
                    476:                if (t)
                    477:                        print_tagq(h, t);
1.8       kristaps  478:        }
                    479:
                    480:        return(0);
                    481: }
                    482:
                    483:
                    484: /* ARGSUSED */
                    485: static int
1.56      kristaps  486: man_SM_pre(MAN_ARGS)
1.8       kristaps  487: {
                    488:
1.57      kristaps  489:        print_otag(h, TAG_SMALL, 0, NULL);
1.56      kristaps  490:        if (MAN_SB == n->tok)
1.57      kristaps  491:                print_otag(h, TAG_B, 0, NULL);
1.8       kristaps  492:        return(1);
                    493: }
                    494:
                    495:
                    496: /* ARGSUSED */
                    497: static int
1.4       kristaps  498: man_SS_pre(MAN_ARGS)
                    499: {
1.54      kristaps  500:        struct htmlpair  tag;
1.4       kristaps  501:
1.54      kristaps  502:        if (MAN_BLOCK == n->type) {
                    503:                PAIR_CLASS_INIT(&tag, "subsection");
                    504:                print_otag(h, TAG_DIV, 1, &tag);
1.4       kristaps  505:                return(1);
1.54      kristaps  506:        } else if (MAN_BODY == n->type)
1.4       kristaps  507:                return(1);
                    508:
1.54      kristaps  509:        print_otag(h, TAG_H2, 0, NULL);
1.4       kristaps  510:        return(1);
                    511: }
                    512:
                    513:
                    514: /* ARGSUSED */
                    515: static int
                    516: man_PP_pre(MAN_ARGS)
                    517: {
                    518:
1.47      kristaps  519:        if (MAN_HEAD == n->type)
                    520:                return(0);
1.56      kristaps  521:        else if (MAN_BODY == n->type && n->prev)
                    522:                print_otag(h, TAG_P, 0, NULL);
1.47      kristaps  523:
1.5       kristaps  524:        return(1);
                    525: }
                    526:
                    527:
                    528: /* ARGSUSED */
                    529: static int
                    530: man_IP_pre(MAN_ARGS)
                    531: {
1.7       kristaps  532:        struct roffsu            su;
1.5       kristaps  533:        struct htmlpair          tag;
                    534:        const struct man_node   *nn;
                    535:
1.7       kristaps  536:        /*
                    537:         * This scattering of 1-BU margins and pads is to make sure that
                    538:         * when text overruns its box, the subsequent text isn't flush
                    539:         * up against it.  However, the rest of the right-hand box must
                    540:         * also be adjusted in consideration of this 1-BU space.
                    541:         */
                    542:
                    543:        if (MAN_BODY == n->type) {
1.56      kristaps  544:                print_otag(h, TAG_TD, 0, NULL);
1.6       kristaps  545:                return(1);
                    546:        }
                    547:
                    548:        nn = MAN_BLOCK == n->type ?
                    549:                n->head->child : n->parent->head->child;
                    550:
1.7       kristaps  551:        SCALE_HS_INIT(&su, INDENT);
1.6       kristaps  552:
1.59      schwarze  553:        /* Width is the second token. */
1.28      kristaps  554:
1.7       kristaps  555:        if (MAN_IP == n->tok && NULL != nn)
1.59      schwarze  556:                if (NULL != (nn = nn->next))
1.62      kristaps  557:                        a2width(nn, &su);
1.5       kristaps  558:
1.28      kristaps  559:        /* Width is the first token. */
                    560:
1.27      kristaps  561:        if (MAN_TP == n->tok && NULL != nn) {
1.28      kristaps  562:                /* Skip past non-text children. */
1.27      kristaps  563:                while (nn && MAN_TEXT != nn->type)
                    564:                        nn = nn->next;
1.28      kristaps  565:                if (nn)
1.62      kristaps  566:                        a2width(nn, &su);
1.27      kristaps  567:        }
1.7       kristaps  568:
1.5       kristaps  569:        if (MAN_BLOCK == n->type) {
1.56      kristaps  570:                print_otag(h, TAG_P, 0, NULL);
                    571:                print_otag(h, TAG_TABLE, 0, NULL);
                    572:                bufcat_su(h, "width", &su);
1.7       kristaps  573:                PAIR_STYLE_INIT(&tag, h);
1.56      kristaps  574:                print_otag(h, TAG_COL, 1, &tag);
                    575:                print_otag(h, TAG_COL, 0, NULL);
                    576:                print_otag(h, TAG_TBODY, 0, NULL);
                    577:                print_otag(h, TAG_TR, 0, NULL);
1.5       kristaps  578:                return(1);
1.6       kristaps  579:        }
                    580:
1.56      kristaps  581:        print_otag(h, TAG_TD, 0, NULL);
1.6       kristaps  582:
1.59      schwarze  583:        /* For IP, only print the first header element. */
1.7       kristaps  584:
1.59      schwarze  585:        if (MAN_IP == n->tok && n->child)
                    586:                print_man_node(m, n->child, mh, h);
1.27      kristaps  587:
1.59      schwarze  588:        /* For TP, only print next-line header elements. */
1.6       kristaps  589:
1.7       kristaps  590:        if (MAN_TP == n->tok)
1.59      schwarze  591:                for (nn = n->child; nn; nn = nn->next)
                    592:                        if (nn->line > n->line)
                    593:                                print_man_node(m, nn, mh, h);
1.6       kristaps  594:
                    595:        return(0);
                    596: }
                    597:
                    598:
                    599: /* ARGSUSED */
                    600: static int
                    601: man_HP_pre(MAN_ARGS)
                    602: {
1.56      kristaps  603:        struct htmlpair  tag;
                    604:        struct roffsu    su;
                    605:        const struct man_node *np;
1.6       kristaps  606:
1.56      kristaps  607:        np = MAN_BLOCK == n->type ?
                    608:                n->head->child :
                    609:                n->parent->head->child;
1.6       kristaps  610:
1.56      kristaps  611:        if (NULL == np || ! a2width(np, &su))
                    612:                SCALE_HS_INIT(&su, INDENT);
1.6       kristaps  613:
1.56      kristaps  614:        if (MAN_HEAD == n->type) {
                    615:                print_otag(h, TAG_TD, 0, NULL);
                    616:                return(0);
                    617:        } else if (MAN_BLOCK == n->type) {
                    618:                print_otag(h, TAG_P, 0, NULL);
                    619:                print_otag(h, TAG_TABLE, 0, NULL);
                    620:                bufcat_su(h, "width", &su);
1.7       kristaps  621:                PAIR_STYLE_INIT(&tag, h);
1.56      kristaps  622:                print_otag(h, TAG_COL, 1, &tag);
                    623:                print_otag(h, TAG_COL, 0, NULL);
                    624:                print_otag(h, TAG_TBODY, 0, NULL);
                    625:                print_otag(h, TAG_TR, 0, NULL);
1.6       kristaps  626:                return(1);
                    627:        }
1.5       kristaps  628:
1.56      kristaps  629:        su.scale = -su.scale;
1.7       kristaps  630:        bufcat_su(h, "text-indent", &su);
                    631:        PAIR_STYLE_INIT(&tag, h);
1.56      kristaps  632:        print_otag(h, TAG_TD, 1, &tag);
1.4       kristaps  633:        return(1);
                    634: }
1.6       kristaps  635:
1.8       kristaps  636:
                    637: /* ARGSUSED */
                    638: static int
                    639: man_B_pre(MAN_ARGS)
                    640: {
                    641:
1.57      kristaps  642:        print_otag(h, TAG_B, 0, NULL);
1.8       kristaps  643:        return(1);
                    644: }
                    645:
                    646:
                    647: /* ARGSUSED */
                    648: static int
                    649: man_I_pre(MAN_ARGS)
                    650: {
1.23      kristaps  651:
1.57      kristaps  652:        print_otag(h, TAG_I, 0, NULL);
1.8       kristaps  653:        return(1);
1.45      kristaps  654: }
                    655:
                    656:
                    657: /* ARGSUSED */
                    658: static int
                    659: man_literal_pre(MAN_ARGS)
                    660: {
                    661:
1.48      kristaps  662:        if (MAN_nf == n->tok) {
1.45      kristaps  663:                print_otag(h, TAG_BR, 0, NULL);
                    664:                mh->fl |= MANH_LITERAL;
1.48      kristaps  665:        } else
1.45      kristaps  666:                mh->fl &= ~MANH_LITERAL;
                    667:
1.67      schwarze  668:        return(0);
1.45      kristaps  669: }
                    670:
                    671:
                    672: /* ARGSUSED */
                    673: static int
                    674: man_in_pre(MAN_ARGS)
                    675: {
                    676:
                    677:        print_otag(h, TAG_BR, 0, NULL);
                    678:        return(0);
1.8       kristaps  679: }
                    680:
                    681:
                    682: /* ARGSUSED */
                    683: static int
                    684: man_ign_pre(MAN_ARGS)
                    685: {
                    686:
                    687:        return(0);
                    688: }
1.9       kristaps  689:
                    690:
                    691: /* ARGSUSED */
                    692: static int
                    693: man_RS_pre(MAN_ARGS)
                    694: {
                    695:        struct htmlpair  tag;
                    696:        struct roffsu    su;
                    697:
                    698:        if (MAN_HEAD == n->type)
                    699:                return(0);
                    700:        else if (MAN_BODY == n->type)
                    701:                return(1);
                    702:
                    703:        SCALE_HS_INIT(&su, INDENT);
1.56      kristaps  704:        if (n->head->child)
1.9       kristaps  705:                a2width(n->head->child, &su);
                    706:
1.56      kristaps  707:        bufcat_su(h, "margin-left", &su);
1.9       kristaps  708:        PAIR_STYLE_INIT(&tag, h);
                    709:        print_otag(h, TAG_DIV, 1, &tag);
                    710:        return(1);
                    711: }

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