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Annotation of mandoc/man_html.c, Revision 1.57

1.57    ! kristaps    1: /*     $Id: man_html.c,v 1.56 2010/12/22 09:51:27 kristaps Exp $ */
1.1       kristaps    2: /*
1.42      schwarze    3:  * Copyright (c) 2008, 2009, 2010 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);
                     70: static int               man_root_pre(MAN_ARGS);
                     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 */
1.3       kristaps  103:        { NULL, 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);
1.31      kristaps  161:        buffmt(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;
                    183:
                    184:        child = 1;
1.14      kristaps  185:        t = h->tags.head;
1.4       kristaps  186:
                    187:        bufinit(h);
                    188:
1.28      kristaps  189:        /*
                    190:         * FIXME: embedded elements within next-line scopes (e.g., `br'
                    191:         * within an empty `B') will cause formatting to be forgotten
                    192:         * due to scope closing out.
                    193:         */
                    194:
1.4       kristaps  195:        switch (n->type) {
                    196:        case (MAN_ROOT):
1.45      kristaps  197:                child = man_root_pre(m, n, mh, h);
1.4       kristaps  198:                break;
                    199:        case (MAN_TEXT):
                    200:                print_text(h, n->string);
1.45      kristaps  201:
                    202:                if (MANH_LITERAL & mh->fl)
                    203:                        print_otag(h, TAG_BR, 0, NULL);
                    204:
1.19      kristaps  205:                return;
1.4       kristaps  206:        default:
1.21      kristaps  207:                /*
                    208:                 * Close out scope of font prior to opening a macro
                    209:                 * scope.  Assert that the metafont is on the top of the
                    210:                 * stack (it's never nested).
                    211:                 */
1.57    ! kristaps  212:                if (HTMLFONT_NONE != h->metac) {
        !           213:                        h->metal = h->metac;
        !           214:                        h->metac = HTMLFONT_NONE;
1.20      kristaps  215:                }
1.4       kristaps  216:                if (mans[n->tok].pre)
1.45      kristaps  217:                        child = (*mans[n->tok].pre)(m, n, mh, h);
1.4       kristaps  218:                break;
                    219:        }
                    220:
1.21      kristaps  221:        if (child && n->child)
1.45      kristaps  222:                print_man_nodelist(m, n->child, mh, h);
1.21      kristaps  223:
1.24      kristaps  224:        /* This will automatically close out any font scope. */
1.4       kristaps  225:        print_stagq(h, t);
                    226:
                    227:        bufinit(h);
                    228:
                    229:        switch (n->type) {
                    230:        case (MAN_ROOT):
1.45      kristaps  231:                man_root_post(m, n, mh, h);
1.4       kristaps  232:                break;
                    233:        case (MAN_TEXT):
                    234:                break;
                    235:        default:
                    236:                if (mans[n->tok].post)
1.45      kristaps  237:                        (*mans[n->tok].post)(m, n, mh, h);
1.4       kristaps  238:                break;
                    239:        }
                    240: }
                    241:
                    242:
1.5       kristaps  243: static int
1.7       kristaps  244: a2width(const struct man_node *n, struct roffsu *su)
1.5       kristaps  245: {
                    246:
1.6       kristaps  247:        if (MAN_TEXT != n->type)
1.7       kristaps  248:                return(0);
1.11      kristaps  249:        if (a2roffsu(n->string, su, SCALE_BU))
1.7       kristaps  250:                return(1);
1.5       kristaps  251:
1.7       kristaps  252:        return(0);
1.5       kristaps  253: }
                    254:
                    255:
1.40      kristaps  256: /* ARGSUSED */
1.4       kristaps  257: static int
                    258: man_root_pre(MAN_ARGS)
                    259: {
1.56      kristaps  260:        struct htmlpair  tag[3];
1.4       kristaps  261:        struct tag      *t, *tt;
                    262:        char             b[BUFSIZ], title[BUFSIZ];
                    263:
                    264:        b[0] = 0;
                    265:        if (m->vol)
                    266:                (void)strlcat(b, m->vol, BUFSIZ);
                    267:
1.31      kristaps  268:        snprintf(title, BUFSIZ - 1, "%s(%s)", m->title, m->msec);
1.4       kristaps  269:
1.56      kristaps  270:        PAIR_SUMMARY_INIT(&tag[0], "Document Header");
                    271:        PAIR_CLASS_INIT(&tag[1], "head");
                    272:        if (NULL == h->style) {
                    273:                PAIR_INIT(&tag[2], ATTR_WIDTH, "100%");
                    274:                t = print_otag(h, TAG_TABLE, 3, tag);
                    275:                PAIR_INIT(&tag[0], ATTR_WIDTH, "30%");
                    276:                print_otag(h, TAG_COL, 1, tag);
                    277:                print_otag(h, TAG_COL, 1, tag);
                    278:                print_otag(h, TAG_COL, 1, tag);
                    279:        } else
                    280:                t = print_otag(h, TAG_TABLE, 2, tag);
                    281:
                    282:        print_otag(h, TAG_TBODY, 0, NULL);
1.15      kristaps  283:
1.4       kristaps  284:        tt = print_otag(h, TAG_TR, 0, NULL);
                    285:
1.55      kristaps  286:        PAIR_CLASS_INIT(&tag[0], "head-ltitle");
1.4       kristaps  287:        print_otag(h, TAG_TD, 1, tag);
1.55      kristaps  288:
1.4       kristaps  289:        print_text(h, title);
                    290:        print_stagq(h, tt);
                    291:
1.55      kristaps  292:        PAIR_CLASS_INIT(&tag[0], "head-vol");
1.56      kristaps  293:        if (NULL == h->style) {
                    294:                PAIR_INIT(&tag[1], ATTR_ALIGN, "center");
                    295:                print_otag(h, TAG_TD, 2, tag);
                    296:        } else
                    297:                print_otag(h, TAG_TD, 1, tag);
1.55      kristaps  298:
1.4       kristaps  299:        print_text(h, b);
                    300:        print_stagq(h, tt);
                    301:
1.55      kristaps  302:        PAIR_CLASS_INIT(&tag[0], "head-rtitle");
1.56      kristaps  303:        if (NULL == h->style) {
                    304:                PAIR_INIT(&tag[1], ATTR_ALIGN, "right");
                    305:                print_otag(h, TAG_TD, 2, tag);
                    306:        } else
                    307:                print_otag(h, TAG_TD, 1, tag);
1.55      kristaps  308:
1.4       kristaps  309:        print_text(h, title);
                    310:        print_tagq(h, t);
                    311:        return(1);
                    312: }
                    313:
                    314:
                    315: /* ARGSUSED */
                    316: static void
                    317: man_root_post(MAN_ARGS)
                    318: {
1.56      kristaps  319:        struct htmlpair  tag[3];
1.4       kristaps  320:        struct tag      *t, *tt;
1.12      kristaps  321:        char             b[DATESIZ];
1.4       kristaps  322:
1.36      kristaps  323:        if (m->rawdate)
                    324:                strlcpy(b, m->rawdate, DATESIZ);
                    325:        else
                    326:                time2a(m->date, b, DATESIZ);
1.4       kristaps  327:
1.56      kristaps  328:        PAIR_SUMMARY_INIT(&tag[0], "Document Footer");
                    329:        PAIR_CLASS_INIT(&tag[1], "foot");
                    330:        if (NULL == h->style) {
                    331:                PAIR_INIT(&tag[2], ATTR_WIDTH, "100%");
                    332:                t = print_otag(h, TAG_TABLE, 3, tag);
                    333:                PAIR_INIT(&tag[0], ATTR_WIDTH, "50%");
                    334:                print_otag(h, TAG_COL, 1, tag);
                    335:                print_otag(h, TAG_COL, 1, tag);
                    336:        } else
                    337:                t = print_otag(h, TAG_TABLE, 2, tag);
1.15      kristaps  338:
1.4       kristaps  339:        tt = print_otag(h, TAG_TR, 0, NULL);
                    340:
1.55      kristaps  341:        PAIR_CLASS_INIT(&tag[0], "foot-date");
1.4       kristaps  342:        print_otag(h, TAG_TD, 1, tag);
1.55      kristaps  343:
1.4       kristaps  344:        print_text(h, b);
                    345:        print_stagq(h, tt);
                    346:
1.55      kristaps  347:        PAIR_CLASS_INIT(&tag[0], "foot-os");
1.56      kristaps  348:        if (NULL == h->style) {
                    349:                PAIR_INIT(&tag[1], ATTR_ALIGN, "right");
                    350:                print_otag(h, TAG_TD, 2, tag);
                    351:        } else
                    352:                print_otag(h, TAG_TD, 1, tag);
1.55      kristaps  353:
1.4       kristaps  354:        if (m->source)
                    355:                print_text(h, m->source);
                    356:        print_tagq(h, t);
                    357: }
                    358:
                    359:
                    360:
                    361: /* ARGSUSED */
                    362: static int
                    363: man_br_pre(MAN_ARGS)
                    364: {
1.7       kristaps  365:        struct roffsu    su;
                    366:        struct htmlpair  tag;
1.4       kristaps  367:
1.7       kristaps  368:        SCALE_VS_INIT(&su, 1);
                    369:
1.49      kristaps  370:        if (MAN_sp == n->tok) {
1.29      kristaps  371:                if (n->child)
                    372:                        a2roffsu(n->child->string, &su, SCALE_VS);
1.49      kristaps  373:        } else
1.7       kristaps  374:                su.scale = 0;
1.4       kristaps  375:
1.7       kristaps  376:        bufcat_su(h, "height", &su);
                    377:        PAIR_STYLE_INIT(&tag, h);
1.4       kristaps  378:        print_otag(h, TAG_DIV, 1, &tag);
1.24      kristaps  379:
1.16      kristaps  380:        /* So the div isn't empty: */
                    381:        print_text(h, "\\~");
                    382:
1.7       kristaps  383:        return(0);
1.4       kristaps  384: }
                    385:
                    386:
                    387: /* ARGSUSED */
                    388: static int
                    389: man_SH_pre(MAN_ARGS)
                    390: {
1.54      kristaps  391:        struct htmlpair  tag;
1.4       kristaps  392:
1.54      kristaps  393:        if (MAN_BLOCK == n->type) {
                    394:                PAIR_CLASS_INIT(&tag, "section");
                    395:                print_otag(h, TAG_DIV, 1, &tag);
1.4       kristaps  396:                return(1);
1.54      kristaps  397:        } else if (MAN_BODY == n->type)
1.4       kristaps  398:                return(1);
                    399:
1.54      kristaps  400:        print_otag(h, TAG_H1, 0, NULL);
1.4       kristaps  401:        return(1);
                    402: }
                    403:
                    404:
                    405: /* ARGSUSED */
                    406: static int
1.8       kristaps  407: man_alt_pre(MAN_ARGS)
                    408: {
                    409:        const struct man_node   *nn;
1.57    ! kristaps  410:        int              i;
        !           411:        enum htmltag     fp;
        !           412:        struct tag      *t;
1.8       kristaps  413:
                    414:        for (i = 0, nn = n->child; nn; nn = nn->next, i++) {
1.57    ! kristaps  415:                t = NULL;
1.8       kristaps  416:                switch (n->tok) {
                    417:                case (MAN_BI):
1.57    ! kristaps  418:                        fp = i % 2 ? TAG_I : TAG_B;
1.8       kristaps  419:                        break;
                    420:                case (MAN_IB):
1.57    ! kristaps  421:                        fp = i % 2 ? TAG_B : TAG_I;
1.8       kristaps  422:                        break;
                    423:                case (MAN_RI):
1.57    ! kristaps  424:                        fp = i % 2 ? TAG_I : TAG_MAX;
1.8       kristaps  425:                        break;
                    426:                case (MAN_IR):
1.57    ! kristaps  427:                        fp = i % 2 ? TAG_MAX : TAG_I;
1.8       kristaps  428:                        break;
                    429:                case (MAN_BR):
1.57    ! kristaps  430:                        fp = i % 2 ? TAG_MAX : TAG_B;
1.8       kristaps  431:                        break;
                    432:                case (MAN_RB):
1.57    ! kristaps  433:                        fp = i % 2 ? TAG_B : TAG_MAX;
1.8       kristaps  434:                        break;
                    435:                default:
                    436:                        abort();
                    437:                        /* NOTREACHED */
                    438:                }
                    439:
                    440:                if (i)
                    441:                        h->flags |= HTML_NOSPACE;
                    442:
1.57    ! kristaps  443:                if (TAG_MAX != fp)
        !           444:                        t = print_otag(h, fp, 0, NULL);
        !           445:
1.45      kristaps  446:                print_man_node(m, nn, mh, h);
1.57    ! kristaps  447:
        !           448:                if (t)
        !           449:                        print_tagq(h, t);
1.8       kristaps  450:        }
                    451:
                    452:        return(0);
                    453: }
                    454:
                    455:
                    456: /* ARGSUSED */
                    457: static int
1.56      kristaps  458: man_SM_pre(MAN_ARGS)
1.8       kristaps  459: {
                    460:
1.57    ! kristaps  461:        print_otag(h, TAG_SMALL, 0, NULL);
1.56      kristaps  462:        if (MAN_SB == n->tok)
1.57    ! kristaps  463:                print_otag(h, TAG_B, 0, NULL);
1.8       kristaps  464:        return(1);
                    465: }
                    466:
                    467:
                    468: /* ARGSUSED */
                    469: static int
1.4       kristaps  470: man_SS_pre(MAN_ARGS)
                    471: {
1.54      kristaps  472:        struct htmlpair  tag;
1.4       kristaps  473:
1.54      kristaps  474:        if (MAN_BLOCK == n->type) {
                    475:                PAIR_CLASS_INIT(&tag, "subsection");
                    476:                print_otag(h, TAG_DIV, 1, &tag);
1.4       kristaps  477:                return(1);
1.54      kristaps  478:        } else if (MAN_BODY == n->type)
1.4       kristaps  479:                return(1);
                    480:
1.54      kristaps  481:        print_otag(h, TAG_H2, 0, NULL);
1.4       kristaps  482:        return(1);
                    483: }
                    484:
                    485:
                    486: /* ARGSUSED */
                    487: static int
                    488: man_PP_pre(MAN_ARGS)
                    489: {
                    490:
1.47      kristaps  491:        if (MAN_HEAD == n->type)
                    492:                return(0);
1.56      kristaps  493:        else if (MAN_BODY == n->type && n->prev)
                    494:                print_otag(h, TAG_P, 0, NULL);
1.47      kristaps  495:
1.5       kristaps  496:        return(1);
                    497: }
                    498:
                    499:
                    500: /* ARGSUSED */
                    501: static int
                    502: man_IP_pre(MAN_ARGS)
                    503: {
1.7       kristaps  504:        struct roffsu            su;
1.5       kristaps  505:        struct htmlpair          tag;
                    506:        const struct man_node   *nn;
1.7       kristaps  507:        int                      width;
1.5       kristaps  508:
1.7       kristaps  509:        /*
                    510:         * This scattering of 1-BU margins and pads is to make sure that
                    511:         * when text overruns its box, the subsequent text isn't flush
                    512:         * up against it.  However, the rest of the right-hand box must
                    513:         * also be adjusted in consideration of this 1-BU space.
                    514:         */
                    515:
                    516:        if (MAN_BODY == n->type) {
1.56      kristaps  517:                print_otag(h, TAG_TD, 0, NULL);
1.6       kristaps  518:                return(1);
                    519:        }
                    520:
                    521:        nn = MAN_BLOCK == n->type ?
                    522:                n->head->child : n->parent->head->child;
                    523:
1.7       kristaps  524:        SCALE_HS_INIT(&su, INDENT);
                    525:        width = 0;
1.6       kristaps  526:
1.28      kristaps  527:        /* Width is the last token. */
                    528:
1.7       kristaps  529:        if (MAN_IP == n->tok && NULL != nn)
1.5       kristaps  530:                if (NULL != (nn = nn->next)) {
                    531:                        for ( ; nn->next; nn = nn->next)
                    532:                                /* Do nothing. */ ;
1.7       kristaps  533:                        width = a2width(nn, &su);
1.5       kristaps  534:                }
                    535:
1.28      kristaps  536:        /* Width is the first token. */
                    537:
1.27      kristaps  538:        if (MAN_TP == n->tok && NULL != nn) {
1.28      kristaps  539:                /* Skip past non-text children. */
1.27      kristaps  540:                while (nn && MAN_TEXT != nn->type)
                    541:                        nn = nn->next;
1.28      kristaps  542:                if (nn)
                    543:                        width = a2width(nn, &su);
1.27      kristaps  544:        }
1.7       kristaps  545:
1.5       kristaps  546:        if (MAN_BLOCK == n->type) {
1.56      kristaps  547:                print_otag(h, TAG_P, 0, NULL);
                    548:                print_otag(h, TAG_TABLE, 0, NULL);
                    549:                bufcat_su(h, "width", &su);
1.7       kristaps  550:                PAIR_STYLE_INIT(&tag, h);
1.56      kristaps  551:                print_otag(h, TAG_COL, 1, &tag);
                    552:                print_otag(h, TAG_COL, 0, NULL);
                    553:                print_otag(h, TAG_TBODY, 0, NULL);
                    554:                print_otag(h, TAG_TR, 0, NULL);
1.5       kristaps  555:                return(1);
1.6       kristaps  556:        }
                    557:
1.56      kristaps  558:        print_otag(h, TAG_TD, 0, NULL);
1.6       kristaps  559:
1.28      kristaps  560:        /*
                    561:         * Without a length string, we can print all of our children.
                    562:         */
1.7       kristaps  563:
                    564:        if ( ! width)
1.6       kristaps  565:                return(1);
1.27      kristaps  566:
1.28      kristaps  567:        /*
                    568:         * When a length has been specified, we need to carefully print
                    569:         * our child context:  IP gets all children printed but the last
                    570:         * (the width), while TP gets all children printed but the first
                    571:         * (the width).
                    572:         */
1.6       kristaps  573:
1.7       kristaps  574:        if (MAN_IP == n->tok)
                    575:                for (nn = n->child; nn->next; nn = nn->next)
1.45      kristaps  576:                        print_man_node(m, nn, mh, h);
1.7       kristaps  577:        if (MAN_TP == n->tok)
                    578:                for (nn = n->child->next; nn; nn = nn->next)
1.45      kristaps  579:                        print_man_node(m, nn, mh, h);
1.6       kristaps  580:
                    581:        return(0);
                    582: }
                    583:
                    584:
                    585: /* ARGSUSED */
                    586: static int
                    587: man_HP_pre(MAN_ARGS)
                    588: {
1.56      kristaps  589:        struct htmlpair  tag;
                    590:        struct roffsu    su;
                    591:        const struct man_node *np;
1.6       kristaps  592:
1.56      kristaps  593:        np = MAN_BLOCK == n->type ?
                    594:                n->head->child :
                    595:                n->parent->head->child;
1.6       kristaps  596:
1.56      kristaps  597:        if (NULL == np || ! a2width(np, &su))
                    598:                SCALE_HS_INIT(&su, INDENT);
1.6       kristaps  599:
1.56      kristaps  600:        if (MAN_HEAD == n->type) {
                    601:                print_otag(h, TAG_TD, 0, NULL);
                    602:                return(0);
                    603:        } else if (MAN_BLOCK == n->type) {
                    604:                print_otag(h, TAG_P, 0, NULL);
                    605:                print_otag(h, TAG_TABLE, 0, NULL);
                    606:                bufcat_su(h, "width", &su);
1.7       kristaps  607:                PAIR_STYLE_INIT(&tag, h);
1.56      kristaps  608:                print_otag(h, TAG_COL, 1, &tag);
                    609:                print_otag(h, TAG_COL, 0, NULL);
                    610:                print_otag(h, TAG_TBODY, 0, NULL);
                    611:                print_otag(h, TAG_TR, 0, NULL);
1.6       kristaps  612:                return(1);
                    613:        }
1.5       kristaps  614:
1.56      kristaps  615:        su.scale = -su.scale;
1.7       kristaps  616:        bufcat_su(h, "text-indent", &su);
                    617:        PAIR_STYLE_INIT(&tag, h);
1.56      kristaps  618:        print_otag(h, TAG_TD, 1, &tag);
1.4       kristaps  619:        return(1);
                    620: }
1.6       kristaps  621:
1.8       kristaps  622:
                    623: /* ARGSUSED */
                    624: static int
                    625: man_B_pre(MAN_ARGS)
                    626: {
                    627:
1.57    ! kristaps  628:        print_otag(h, TAG_B, 0, NULL);
1.8       kristaps  629:        return(1);
                    630: }
                    631:
                    632:
                    633: /* ARGSUSED */
                    634: static int
                    635: man_I_pre(MAN_ARGS)
                    636: {
1.23      kristaps  637:
1.57    ! kristaps  638:        print_otag(h, TAG_I, 0, NULL);
1.8       kristaps  639:        return(1);
1.45      kristaps  640: }
                    641:
                    642:
                    643: /* ARGSUSED */
                    644: static int
                    645: man_literal_pre(MAN_ARGS)
                    646: {
                    647:
1.48      kristaps  648:        if (MAN_nf == n->tok) {
1.45      kristaps  649:                print_otag(h, TAG_BR, 0, NULL);
                    650:                mh->fl |= MANH_LITERAL;
1.48      kristaps  651:        } else
1.45      kristaps  652:                mh->fl &= ~MANH_LITERAL;
                    653:
                    654:        return(1);
                    655: }
                    656:
                    657:
                    658: /* ARGSUSED */
                    659: static int
                    660: man_in_pre(MAN_ARGS)
                    661: {
                    662:
                    663:        print_otag(h, TAG_BR, 0, NULL);
                    664:        return(0);
1.8       kristaps  665: }
                    666:
                    667:
                    668: /* ARGSUSED */
                    669: static int
                    670: man_ign_pre(MAN_ARGS)
                    671: {
                    672:
                    673:        return(0);
                    674: }
1.9       kristaps  675:
                    676:
                    677: /* ARGSUSED */
                    678: static int
                    679: man_RS_pre(MAN_ARGS)
                    680: {
                    681:        struct htmlpair  tag;
                    682:        struct roffsu    su;
                    683:
                    684:        if (MAN_HEAD == n->type)
                    685:                return(0);
                    686:        else if (MAN_BODY == n->type)
                    687:                return(1);
                    688:
                    689:        SCALE_HS_INIT(&su, INDENT);
1.56      kristaps  690:        if (n->head->child)
1.9       kristaps  691:                a2width(n->head->child, &su);
                    692:
1.56      kristaps  693:        bufcat_su(h, "margin-left", &su);
1.9       kristaps  694:        PAIR_STYLE_INIT(&tag, h);
                    695:        print_otag(h, TAG_DIV, 1, &tag);
                    696:        return(1);
                    697: }

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