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Annotation of mandoc/man_html.c, Revision 1.65

1.65    ! kristaps    1: /*     $Id: man_html.c,v 1.64 2011/01/12 15:31:17 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);
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 */
1.3       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:        bufinit(h);
                    187:
                    188:        switch (n->type) {
                    189:        case (MAN_ROOT):
1.65    ! kristaps  190:                man_root_pre(m, n, mh, h);
1.4       kristaps  191:                break;
                    192:        case (MAN_TEXT):
1.65    ! kristaps  193:                /*
        !           194:                 * If we have a blank line, output a vertical space.
        !           195:                 * If we have a space as the first character, break
        !           196:                 * before printing the line's data.
        !           197:                 */
1.63      kristaps  198:                if ('\0' == *n->string) {
                    199:                        print_otag(h, TAG_P, 0, NULL);
                    200:                        return;
1.64      kristaps  201:                } else if (' ' == *n->string && MAN_LINE & n->flags)
1.63      kristaps  202:                        print_otag(h, TAG_BR, 0, NULL);
                    203:
1.4       kristaps  204:                print_text(h, n->string);
1.63      kristaps  205:
1.65    ! kristaps  206:                /*
        !           207:                 * If we're in a literal context, make sure that words
        !           208:                 * togehter on the same line stay together.  This is a
        !           209:                 * POST-printing call, so we check the NEXT word.  Since
        !           210:                 * -man doesn't have nested macros, we don't need to be
        !           211:                 * more specific than this.
        !           212:                 */
1.64      kristaps  213:                if (MANH_LITERAL & mh->fl &&
                    214:                                (NULL == n->next ||
                    215:                                 n->next->line > n->line))
1.45      kristaps  216:                        print_otag(h, TAG_BR, 0, NULL);
1.58      kristaps  217:                return;
                    218:        case (MAN_TBL):
1.60      kristaps  219:                print_tbl(h, n->span);
1.64      kristaps  220:                return;
1.4       kristaps  221:        default:
1.21      kristaps  222:                /*
                    223:                 * Close out scope of font prior to opening a macro
                    224:                 * scope.  Assert that the metafont is on the top of the
                    225:                 * stack (it's never nested).
                    226:                 */
1.57      kristaps  227:                if (HTMLFONT_NONE != h->metac) {
                    228:                        h->metal = h->metac;
                    229:                        h->metac = HTMLFONT_NONE;
1.20      kristaps  230:                }
1.4       kristaps  231:                if (mans[n->tok].pre)
1.45      kristaps  232:                        child = (*mans[n->tok].pre)(m, n, mh, h);
1.4       kristaps  233:                break;
                    234:        }
                    235:
1.21      kristaps  236:        if (child && n->child)
1.45      kristaps  237:                print_man_nodelist(m, n->child, mh, h);
1.21      kristaps  238:
1.24      kristaps  239:        /* This will automatically close out any font scope. */
1.4       kristaps  240:        print_stagq(h, t);
                    241:
                    242:        bufinit(h);
                    243:
1.61      kristaps  244:        switch (n->type) {
                    245:        case (MAN_ROOT):
1.45      kristaps  246:                man_root_post(m, n, mh, h);
1.61      kristaps  247:                break;
                    248:        default:
                    249:                if (mans[n->tok].post)
                    250:                        (*mans[n->tok].post)(m, n, mh, h);
                    251:                break;
                    252:        }
1.4       kristaps  253: }
                    254:
                    255:
1.5       kristaps  256: static int
1.7       kristaps  257: a2width(const struct man_node *n, struct roffsu *su)
1.5       kristaps  258: {
                    259:
1.6       kristaps  260:        if (MAN_TEXT != n->type)
1.7       kristaps  261:                return(0);
1.11      kristaps  262:        if (a2roffsu(n->string, su, SCALE_BU))
1.7       kristaps  263:                return(1);
1.5       kristaps  264:
1.7       kristaps  265:        return(0);
1.5       kristaps  266: }
                    267:
                    268:
1.40      kristaps  269: /* ARGSUSED */
1.65    ! kristaps  270: static void
1.4       kristaps  271: man_root_pre(MAN_ARGS)
                    272: {
1.56      kristaps  273:        struct htmlpair  tag[3];
1.4       kristaps  274:        struct tag      *t, *tt;
                    275:        char             b[BUFSIZ], title[BUFSIZ];
                    276:
                    277:        b[0] = 0;
                    278:        if (m->vol)
                    279:                (void)strlcat(b, m->vol, BUFSIZ);
                    280:
1.31      kristaps  281:        snprintf(title, BUFSIZ - 1, "%s(%s)", m->title, m->msec);
1.4       kristaps  282:
1.56      kristaps  283:        PAIR_SUMMARY_INIT(&tag[0], "Document Header");
                    284:        PAIR_CLASS_INIT(&tag[1], "head");
                    285:        if (NULL == h->style) {
                    286:                PAIR_INIT(&tag[2], ATTR_WIDTH, "100%");
                    287:                t = print_otag(h, TAG_TABLE, 3, tag);
                    288:                PAIR_INIT(&tag[0], ATTR_WIDTH, "30%");
                    289:                print_otag(h, TAG_COL, 1, tag);
                    290:                print_otag(h, TAG_COL, 1, tag);
                    291:                print_otag(h, TAG_COL, 1, tag);
                    292:        } else
                    293:                t = print_otag(h, TAG_TABLE, 2, tag);
                    294:
                    295:        print_otag(h, TAG_TBODY, 0, NULL);
1.15      kristaps  296:
1.4       kristaps  297:        tt = print_otag(h, TAG_TR, 0, NULL);
                    298:
1.55      kristaps  299:        PAIR_CLASS_INIT(&tag[0], "head-ltitle");
1.4       kristaps  300:        print_otag(h, TAG_TD, 1, tag);
1.55      kristaps  301:
1.4       kristaps  302:        print_text(h, title);
                    303:        print_stagq(h, tt);
                    304:
1.55      kristaps  305:        PAIR_CLASS_INIT(&tag[0], "head-vol");
1.56      kristaps  306:        if (NULL == h->style) {
                    307:                PAIR_INIT(&tag[1], ATTR_ALIGN, "center");
                    308:                print_otag(h, TAG_TD, 2, tag);
                    309:        } else
                    310:                print_otag(h, TAG_TD, 1, tag);
1.55      kristaps  311:
1.4       kristaps  312:        print_text(h, b);
                    313:        print_stagq(h, tt);
                    314:
1.55      kristaps  315:        PAIR_CLASS_INIT(&tag[0], "head-rtitle");
1.56      kristaps  316:        if (NULL == h->style) {
                    317:                PAIR_INIT(&tag[1], ATTR_ALIGN, "right");
                    318:                print_otag(h, TAG_TD, 2, tag);
                    319:        } else
                    320:                print_otag(h, TAG_TD, 1, tag);
1.55      kristaps  321:
1.4       kristaps  322:        print_text(h, title);
                    323:        print_tagq(h, t);
                    324: }
                    325:
                    326:
                    327: /* ARGSUSED */
                    328: static void
                    329: man_root_post(MAN_ARGS)
                    330: {
1.56      kristaps  331:        struct htmlpair  tag[3];
1.4       kristaps  332:        struct tag      *t, *tt;
1.12      kristaps  333:        char             b[DATESIZ];
1.4       kristaps  334:
1.36      kristaps  335:        if (m->rawdate)
                    336:                strlcpy(b, m->rawdate, DATESIZ);
                    337:        else
                    338:                time2a(m->date, b, DATESIZ);
1.4       kristaps  339:
1.56      kristaps  340:        PAIR_SUMMARY_INIT(&tag[0], "Document Footer");
                    341:        PAIR_CLASS_INIT(&tag[1], "foot");
                    342:        if (NULL == h->style) {
                    343:                PAIR_INIT(&tag[2], ATTR_WIDTH, "100%");
                    344:                t = print_otag(h, TAG_TABLE, 3, tag);
                    345:                PAIR_INIT(&tag[0], ATTR_WIDTH, "50%");
                    346:                print_otag(h, TAG_COL, 1, tag);
                    347:                print_otag(h, TAG_COL, 1, tag);
                    348:        } else
                    349:                t = print_otag(h, TAG_TABLE, 2, tag);
1.15      kristaps  350:
1.4       kristaps  351:        tt = print_otag(h, TAG_TR, 0, NULL);
                    352:
1.55      kristaps  353:        PAIR_CLASS_INIT(&tag[0], "foot-date");
1.4       kristaps  354:        print_otag(h, TAG_TD, 1, tag);
1.55      kristaps  355:
1.4       kristaps  356:        print_text(h, b);
                    357:        print_stagq(h, tt);
                    358:
1.55      kristaps  359:        PAIR_CLASS_INIT(&tag[0], "foot-os");
1.56      kristaps  360:        if (NULL == h->style) {
                    361:                PAIR_INIT(&tag[1], ATTR_ALIGN, "right");
                    362:                print_otag(h, TAG_TD, 2, tag);
                    363:        } else
                    364:                print_otag(h, TAG_TD, 1, tag);
1.55      kristaps  365:
1.4       kristaps  366:        if (m->source)
                    367:                print_text(h, m->source);
                    368:        print_tagq(h, t);
                    369: }
                    370:
                    371:
                    372:
                    373: /* ARGSUSED */
                    374: static int
                    375: man_br_pre(MAN_ARGS)
                    376: {
1.7       kristaps  377:        struct roffsu    su;
                    378:        struct htmlpair  tag;
1.4       kristaps  379:
1.7       kristaps  380:        SCALE_VS_INIT(&su, 1);
                    381:
1.49      kristaps  382:        if (MAN_sp == n->tok) {
1.29      kristaps  383:                if (n->child)
                    384:                        a2roffsu(n->child->string, &su, SCALE_VS);
1.49      kristaps  385:        } else
1.7       kristaps  386:                su.scale = 0;
1.4       kristaps  387:
1.7       kristaps  388:        bufcat_su(h, "height", &su);
                    389:        PAIR_STYLE_INIT(&tag, h);
1.4       kristaps  390:        print_otag(h, TAG_DIV, 1, &tag);
1.24      kristaps  391:
1.16      kristaps  392:        /* So the div isn't empty: */
                    393:        print_text(h, "\\~");
                    394:
1.7       kristaps  395:        return(0);
1.4       kristaps  396: }
                    397:
                    398:
                    399: /* ARGSUSED */
                    400: static int
                    401: man_SH_pre(MAN_ARGS)
                    402: {
1.54      kristaps  403:        struct htmlpair  tag;
1.4       kristaps  404:
1.54      kristaps  405:        if (MAN_BLOCK == n->type) {
                    406:                PAIR_CLASS_INIT(&tag, "section");
                    407:                print_otag(h, TAG_DIV, 1, &tag);
1.4       kristaps  408:                return(1);
1.54      kristaps  409:        } else if (MAN_BODY == n->type)
1.4       kristaps  410:                return(1);
                    411:
1.54      kristaps  412:        print_otag(h, TAG_H1, 0, NULL);
1.4       kristaps  413:        return(1);
                    414: }
                    415:
                    416:
                    417: /* ARGSUSED */
                    418: static int
1.8       kristaps  419: man_alt_pre(MAN_ARGS)
                    420: {
                    421:        const struct man_node   *nn;
1.57      kristaps  422:        int              i;
                    423:        enum htmltag     fp;
                    424:        struct tag      *t;
1.8       kristaps  425:
                    426:        for (i = 0, nn = n->child; nn; nn = nn->next, i++) {
1.57      kristaps  427:                t = NULL;
1.8       kristaps  428:                switch (n->tok) {
                    429:                case (MAN_BI):
1.57      kristaps  430:                        fp = i % 2 ? TAG_I : TAG_B;
1.8       kristaps  431:                        break;
                    432:                case (MAN_IB):
1.57      kristaps  433:                        fp = i % 2 ? TAG_B : TAG_I;
1.8       kristaps  434:                        break;
                    435:                case (MAN_RI):
1.57      kristaps  436:                        fp = i % 2 ? TAG_I : TAG_MAX;
1.8       kristaps  437:                        break;
                    438:                case (MAN_IR):
1.57      kristaps  439:                        fp = i % 2 ? TAG_MAX : TAG_I;
1.8       kristaps  440:                        break;
                    441:                case (MAN_BR):
1.57      kristaps  442:                        fp = i % 2 ? TAG_MAX : TAG_B;
1.8       kristaps  443:                        break;
                    444:                case (MAN_RB):
1.57      kristaps  445:                        fp = i % 2 ? TAG_B : TAG_MAX;
1.8       kristaps  446:                        break;
                    447:                default:
                    448:                        abort();
                    449:                        /* NOTREACHED */
                    450:                }
                    451:
                    452:                if (i)
                    453:                        h->flags |= HTML_NOSPACE;
                    454:
1.57      kristaps  455:                if (TAG_MAX != fp)
                    456:                        t = print_otag(h, fp, 0, NULL);
                    457:
1.45      kristaps  458:                print_man_node(m, nn, mh, h);
1.57      kristaps  459:
                    460:                if (t)
                    461:                        print_tagq(h, t);
1.8       kristaps  462:        }
                    463:
                    464:        return(0);
                    465: }
                    466:
                    467:
                    468: /* ARGSUSED */
                    469: static int
1.56      kristaps  470: man_SM_pre(MAN_ARGS)
1.8       kristaps  471: {
                    472:
1.57      kristaps  473:        print_otag(h, TAG_SMALL, 0, NULL);
1.56      kristaps  474:        if (MAN_SB == n->tok)
1.57      kristaps  475:                print_otag(h, TAG_B, 0, NULL);
1.8       kristaps  476:        return(1);
                    477: }
                    478:
                    479:
                    480: /* ARGSUSED */
                    481: static int
1.4       kristaps  482: man_SS_pre(MAN_ARGS)
                    483: {
1.54      kristaps  484:        struct htmlpair  tag;
1.4       kristaps  485:
1.54      kristaps  486:        if (MAN_BLOCK == n->type) {
                    487:                PAIR_CLASS_INIT(&tag, "subsection");
                    488:                print_otag(h, TAG_DIV, 1, &tag);
1.4       kristaps  489:                return(1);
1.54      kristaps  490:        } else if (MAN_BODY == n->type)
1.4       kristaps  491:                return(1);
                    492:
1.54      kristaps  493:        print_otag(h, TAG_H2, 0, NULL);
1.4       kristaps  494:        return(1);
                    495: }
                    496:
                    497:
                    498: /* ARGSUSED */
                    499: static int
                    500: man_PP_pre(MAN_ARGS)
                    501: {
                    502:
1.47      kristaps  503:        if (MAN_HEAD == n->type)
                    504:                return(0);
1.56      kristaps  505:        else if (MAN_BODY == n->type && n->prev)
                    506:                print_otag(h, TAG_P, 0, NULL);
1.47      kristaps  507:
1.5       kristaps  508:        return(1);
                    509: }
                    510:
                    511:
                    512: /* ARGSUSED */
                    513: static int
                    514: man_IP_pre(MAN_ARGS)
                    515: {
1.7       kristaps  516:        struct roffsu            su;
1.5       kristaps  517:        struct htmlpair          tag;
                    518:        const struct man_node   *nn;
                    519:
1.7       kristaps  520:        /*
                    521:         * This scattering of 1-BU margins and pads is to make sure that
                    522:         * when text overruns its box, the subsequent text isn't flush
                    523:         * up against it.  However, the rest of the right-hand box must
                    524:         * also be adjusted in consideration of this 1-BU space.
                    525:         */
                    526:
                    527:        if (MAN_BODY == n->type) {
1.56      kristaps  528:                print_otag(h, TAG_TD, 0, NULL);
1.6       kristaps  529:                return(1);
                    530:        }
                    531:
                    532:        nn = MAN_BLOCK == n->type ?
                    533:                n->head->child : n->parent->head->child;
                    534:
1.7       kristaps  535:        SCALE_HS_INIT(&su, INDENT);
1.6       kristaps  536:
1.59      schwarze  537:        /* Width is the second token. */
1.28      kristaps  538:
1.7       kristaps  539:        if (MAN_IP == n->tok && NULL != nn)
1.59      schwarze  540:                if (NULL != (nn = nn->next))
1.62      kristaps  541:                        a2width(nn, &su);
1.5       kristaps  542:
1.28      kristaps  543:        /* Width is the first token. */
                    544:
1.27      kristaps  545:        if (MAN_TP == n->tok && NULL != nn) {
1.28      kristaps  546:                /* Skip past non-text children. */
1.27      kristaps  547:                while (nn && MAN_TEXT != nn->type)
                    548:                        nn = nn->next;
1.28      kristaps  549:                if (nn)
1.62      kristaps  550:                        a2width(nn, &su);
1.27      kristaps  551:        }
1.7       kristaps  552:
1.5       kristaps  553:        if (MAN_BLOCK == n->type) {
1.56      kristaps  554:                print_otag(h, TAG_P, 0, NULL);
                    555:                print_otag(h, TAG_TABLE, 0, NULL);
                    556:                bufcat_su(h, "width", &su);
1.7       kristaps  557:                PAIR_STYLE_INIT(&tag, h);
1.56      kristaps  558:                print_otag(h, TAG_COL, 1, &tag);
                    559:                print_otag(h, TAG_COL, 0, NULL);
                    560:                print_otag(h, TAG_TBODY, 0, NULL);
                    561:                print_otag(h, TAG_TR, 0, NULL);
1.5       kristaps  562:                return(1);
1.6       kristaps  563:        }
                    564:
1.56      kristaps  565:        print_otag(h, TAG_TD, 0, NULL);
1.6       kristaps  566:
1.59      schwarze  567:        /* For IP, only print the first header element. */
1.7       kristaps  568:
1.59      schwarze  569:        if (MAN_IP == n->tok && n->child)
                    570:                print_man_node(m, n->child, mh, h);
1.27      kristaps  571:
1.59      schwarze  572:        /* For TP, only print next-line header elements. */
1.6       kristaps  573:
1.7       kristaps  574:        if (MAN_TP == n->tok)
1.59      schwarze  575:                for (nn = n->child; nn; nn = nn->next)
                    576:                        if (nn->line > n->line)
                    577:                                print_man_node(m, nn, mh, h);
1.6       kristaps  578:
                    579:        return(0);
                    580: }
                    581:
                    582:
                    583: /* ARGSUSED */
                    584: static int
                    585: man_HP_pre(MAN_ARGS)
                    586: {
1.56      kristaps  587:        struct htmlpair  tag;
                    588:        struct roffsu    su;
                    589:        const struct man_node *np;
1.6       kristaps  590:
1.56      kristaps  591:        np = MAN_BLOCK == n->type ?
                    592:                n->head->child :
                    593:                n->parent->head->child;
1.6       kristaps  594:
1.56      kristaps  595:        if (NULL == np || ! a2width(np, &su))
                    596:                SCALE_HS_INIT(&su, INDENT);
1.6       kristaps  597:
1.56      kristaps  598:        if (MAN_HEAD == n->type) {
                    599:                print_otag(h, TAG_TD, 0, NULL);
                    600:                return(0);
                    601:        } else if (MAN_BLOCK == n->type) {
                    602:                print_otag(h, TAG_P, 0, NULL);
                    603:                print_otag(h, TAG_TABLE, 0, NULL);
                    604:                bufcat_su(h, "width", &su);
1.7       kristaps  605:                PAIR_STYLE_INIT(&tag, h);
1.56      kristaps  606:                print_otag(h, TAG_COL, 1, &tag);
                    607:                print_otag(h, TAG_COL, 0, NULL);
                    608:                print_otag(h, TAG_TBODY, 0, NULL);
                    609:                print_otag(h, TAG_TR, 0, NULL);
1.6       kristaps  610:                return(1);
                    611:        }
1.5       kristaps  612:
1.56      kristaps  613:        su.scale = -su.scale;
1.7       kristaps  614:        bufcat_su(h, "text-indent", &su);
                    615:        PAIR_STYLE_INIT(&tag, h);
1.56      kristaps  616:        print_otag(h, TAG_TD, 1, &tag);
1.4       kristaps  617:        return(1);
                    618: }
1.6       kristaps  619:
1.8       kristaps  620:
                    621: /* ARGSUSED */
                    622: static int
                    623: man_B_pre(MAN_ARGS)
                    624: {
                    625:
1.57      kristaps  626:        print_otag(h, TAG_B, 0, NULL);
1.8       kristaps  627:        return(1);
                    628: }
                    629:
                    630:
                    631: /* ARGSUSED */
                    632: static int
                    633: man_I_pre(MAN_ARGS)
                    634: {
1.23      kristaps  635:
1.57      kristaps  636:        print_otag(h, TAG_I, 0, NULL);
1.8       kristaps  637:        return(1);
1.45      kristaps  638: }
                    639:
                    640:
                    641: /* ARGSUSED */
                    642: static int
                    643: man_literal_pre(MAN_ARGS)
                    644: {
                    645:
1.48      kristaps  646:        if (MAN_nf == n->tok) {
1.45      kristaps  647:                print_otag(h, TAG_BR, 0, NULL);
                    648:                mh->fl |= MANH_LITERAL;
1.48      kristaps  649:        } else
1.45      kristaps  650:                mh->fl &= ~MANH_LITERAL;
                    651:
                    652:        return(1);
                    653: }
                    654:
                    655:
                    656: /* ARGSUSED */
                    657: static int
                    658: man_in_pre(MAN_ARGS)
                    659: {
                    660:
                    661:        print_otag(h, TAG_BR, 0, NULL);
                    662:        return(0);
1.8       kristaps  663: }
                    664:
                    665:
                    666: /* ARGSUSED */
                    667: static int
                    668: man_ign_pre(MAN_ARGS)
                    669: {
                    670:
                    671:        return(0);
                    672: }
1.9       kristaps  673:
                    674:
                    675: /* ARGSUSED */
                    676: static int
                    677: man_RS_pre(MAN_ARGS)
                    678: {
                    679:        struct htmlpair  tag;
                    680:        struct roffsu    su;
                    681:
                    682:        if (MAN_HEAD == n->type)
                    683:                return(0);
                    684:        else if (MAN_BODY == n->type)
                    685:                return(1);
                    686:
                    687:        SCALE_HS_INIT(&su, INDENT);
1.56      kristaps  688:        if (n->head->child)
1.9       kristaps  689:                a2width(n->head->child, &su);
                    690:
1.56      kristaps  691:        bufcat_su(h, "margin-left", &su);
1.9       kristaps  692:        PAIR_STYLE_INIT(&tag, h);
                    693:        print_otag(h, TAG_DIV, 1, &tag);
                    694:        return(1);
                    695: }

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