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Annotation of mandoc/man_html.c, Revision 1.49

1.49    ! kristaps    1: /*     $Id: man_html.c,v 1.48 2010/12/06 14:07:01 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);
1.8       kristaps   77: static int               man_SB_pre(MAN_ARGS);
1.4       kristaps   78: static int               man_SH_pre(MAN_ARGS);
1.8       kristaps   79: static int               man_SM_pre(MAN_ARGS);
1.4       kristaps   80: static int               man_SS_pre(MAN_ARGS);
                     81:
1.3       kristaps   82: static const struct htmlman mans[MAN_MAX] = {
1.4       kristaps   83:        { man_br_pre, NULL }, /* br */
1.3       kristaps   84:        { NULL, NULL }, /* TH */
1.4       kristaps   85:        { man_SH_pre, NULL }, /* SH */
                     86:        { man_SS_pre, NULL }, /* SS */
1.6       kristaps   87:        { man_IP_pre, NULL }, /* TP */
1.4       kristaps   88:        { man_PP_pre, NULL }, /* LP */
                     89:        { man_PP_pre, NULL }, /* PP */
                     90:        { man_PP_pre, NULL }, /* P */
1.5       kristaps   91:        { man_IP_pre, NULL }, /* IP */
1.6       kristaps   92:        { man_HP_pre, NULL }, /* HP */
1.8       kristaps   93:        { man_SM_pre, NULL }, /* SM */
                     94:        { man_SB_pre, NULL }, /* SB */
                     95:        { man_alt_pre, NULL }, /* BI */
                     96:        { man_alt_pre, NULL }, /* IB */
                     97:        { man_alt_pre, NULL }, /* BR */
                     98:        { man_alt_pre, NULL }, /* RB */
1.3       kristaps   99:        { NULL, NULL }, /* R */
1.8       kristaps  100:        { man_B_pre, NULL }, /* B */
                    101:        { man_I_pre, NULL }, /* I */
                    102:        { man_alt_pre, NULL }, /* IR */
                    103:        { man_alt_pre, NULL }, /* RI */
1.3       kristaps  104:        { NULL, NULL }, /* na */
                    105:        { NULL, NULL }, /* i */
1.4       kristaps  106:        { man_br_pre, NULL }, /* sp */
1.45      kristaps  107:        { man_literal_pre, NULL }, /* nf */
                    108:        { man_literal_pre, NULL }, /* fi */
1.3       kristaps  109:        { NULL, NULL }, /* r */
                    110:        { NULL, NULL }, /* RE */
1.9       kristaps  111:        { man_RS_pre, NULL }, /* RS */
1.8       kristaps  112:        { man_ign_pre, NULL }, /* DT */
                    113:        { man_ign_pre, NULL }, /* UC */
1.13      kristaps  114:        { man_ign_pre, NULL }, /* PD */
1.34      joerg     115:        { man_ign_pre, NULL }, /* AT */
1.45      kristaps  116:        { man_in_pre, NULL }, /* in */
1.3       kristaps  117: };
                    118:
1.1       kristaps  119:
                    120: void
                    121: html_man(void *arg, const struct man *m)
                    122: {
1.3       kristaps  123:        struct html     *h;
                    124:        struct tag      *t;
1.45      kristaps  125:        struct mhtml     mh;
1.3       kristaps  126:
                    127:        h = (struct html *)arg;
                    128:
1.26      kristaps  129:        print_gen_decls(h);
1.3       kristaps  130:
1.45      kristaps  131:        memset(&mh, 0, sizeof(struct mhtml));
                    132:
1.3       kristaps  133:        t = print_otag(h, TAG_HTML, 0, NULL);
1.45      kristaps  134:        print_man(man_meta(m), man_node(m), &mh, h);
1.3       kristaps  135:        print_tagq(h, t);
                    136:
                    137:        printf("\n");
                    138: }
                    139:
                    140:
                    141: static void
                    142: print_man(MAN_ARGS)
                    143: {
                    144:        struct tag      *t;
                    145:        struct htmlpair  tag;
                    146:
                    147:        t = print_otag(h, TAG_HEAD, 0, NULL);
                    148:
1.45      kristaps  149:        print_man_head(m, n, mh, h);
1.3       kristaps  150:        print_tagq(h, t);
                    151:        t = print_otag(h, TAG_BODY, 0, NULL);
                    152:
                    153:        tag.key = ATTR_CLASS;
                    154:        tag.val = "body";
                    155:        print_otag(h, TAG_DIV, 1, &tag);
                    156:
1.45      kristaps  157:        print_man_nodelist(m, n, mh, h);
1.3       kristaps  158:
                    159:        print_tagq(h, t);
                    160: }
                    161:
                    162:
                    163: /* ARGSUSED */
                    164: static void
                    165: print_man_head(MAN_ARGS)
                    166: {
                    167:
                    168:        print_gen_head(h);
                    169:        bufinit(h);
1.31      kristaps  170:        buffmt(h, "%s(%s)", m->title, m->msec);
1.3       kristaps  171:
                    172:        print_otag(h, TAG_TITLE, 0, NULL);
                    173:        print_text(h, h->buf);
1.1       kristaps  174: }
1.4       kristaps  175:
                    176:
                    177: static void
                    178: print_man_nodelist(MAN_ARGS)
                    179: {
                    180:
1.45      kristaps  181:        print_man_node(m, n, mh, h);
1.4       kristaps  182:        if (n->next)
1.45      kristaps  183:                print_man_nodelist(m, n->next, mh, h);
1.4       kristaps  184: }
                    185:
                    186:
                    187: static void
                    188: print_man_node(MAN_ARGS)
                    189: {
                    190:        int              child;
                    191:        struct tag      *t;
                    192:
                    193:        child = 1;
1.14      kristaps  194:        t = h->tags.head;
1.4       kristaps  195:
                    196:        bufinit(h);
                    197:
1.28      kristaps  198:        /*
                    199:         * FIXME: embedded elements within next-line scopes (e.g., `br'
                    200:         * within an empty `B') will cause formatting to be forgotten
                    201:         * due to scope closing out.
                    202:         */
                    203:
1.4       kristaps  204:        switch (n->type) {
                    205:        case (MAN_ROOT):
1.45      kristaps  206:                child = man_root_pre(m, n, mh, h);
1.4       kristaps  207:                break;
                    208:        case (MAN_TEXT):
                    209:                print_text(h, n->string);
1.45      kristaps  210:
                    211:                if (MANH_LITERAL & mh->fl)
                    212:                        print_otag(h, TAG_BR, 0, NULL);
                    213:
1.19      kristaps  214:                return;
1.4       kristaps  215:        default:
1.21      kristaps  216:                /*
                    217:                 * Close out scope of font prior to opening a macro
                    218:                 * scope.  Assert that the metafont is on the top of the
                    219:                 * stack (it's never nested).
                    220:                 */
1.20      kristaps  221:                if (h->metaf) {
                    222:                        assert(h->metaf == t);
                    223:                        print_tagq(h, h->metaf);
1.21      kristaps  224:                        assert(NULL == h->metaf);
1.20      kristaps  225:                        t = h->tags.head;
                    226:                }
1.4       kristaps  227:                if (mans[n->tok].pre)
1.45      kristaps  228:                        child = (*mans[n->tok].pre)(m, n, mh, h);
1.4       kristaps  229:                break;
                    230:        }
                    231:
1.21      kristaps  232:        if (child && n->child)
1.45      kristaps  233:                print_man_nodelist(m, n->child, mh, h);
1.21      kristaps  234:
1.24      kristaps  235:        /* This will automatically close out any font scope. */
1.4       kristaps  236:        print_stagq(h, t);
                    237:
                    238:        bufinit(h);
                    239:
                    240:        switch (n->type) {
                    241:        case (MAN_ROOT):
1.45      kristaps  242:                man_root_post(m, n, mh, h);
1.4       kristaps  243:                break;
                    244:        case (MAN_TEXT):
                    245:                break;
                    246:        default:
                    247:                if (mans[n->tok].post)
1.45      kristaps  248:                        (*mans[n->tok].post)(m, n, mh, h);
1.4       kristaps  249:                break;
                    250:        }
                    251: }
                    252:
                    253:
1.5       kristaps  254: static int
1.7       kristaps  255: a2width(const struct man_node *n, struct roffsu *su)
1.5       kristaps  256: {
                    257:
1.6       kristaps  258:        if (MAN_TEXT != n->type)
1.7       kristaps  259:                return(0);
1.11      kristaps  260:        if (a2roffsu(n->string, su, SCALE_BU))
1.7       kristaps  261:                return(1);
1.5       kristaps  262:
1.7       kristaps  263:        return(0);
1.5       kristaps  264: }
                    265:
                    266:
1.40      kristaps  267: /* ARGSUSED */
1.4       kristaps  268: static int
                    269: man_root_pre(MAN_ARGS)
                    270: {
1.15      kristaps  271:        struct htmlpair  tag[3];
1.4       kristaps  272:        struct tag      *t, *tt;
                    273:        char             b[BUFSIZ], title[BUFSIZ];
                    274:
                    275:        b[0] = 0;
                    276:        if (m->vol)
                    277:                (void)strlcat(b, m->vol, BUFSIZ);
                    278:
1.31      kristaps  279:        snprintf(title, BUFSIZ - 1, "%s(%s)", m->title, m->msec);
1.4       kristaps  280:
1.7       kristaps  281:        PAIR_CLASS_INIT(&tag[0], "header");
                    282:        bufcat_style(h, "width", "100%");
                    283:        PAIR_STYLE_INIT(&tag[1], h);
1.15      kristaps  284:        PAIR_SUMMARY_INIT(&tag[2], "header");
                    285:
                    286:        t = print_otag(h, TAG_TABLE, 3, tag);
1.4       kristaps  287:        tt = print_otag(h, TAG_TR, 0, NULL);
                    288:
1.7       kristaps  289:        bufinit(h);
                    290:        bufcat_style(h, "width", "10%");
                    291:        PAIR_STYLE_INIT(&tag[0], h);
1.4       kristaps  292:        print_otag(h, TAG_TD, 1, tag);
                    293:        print_text(h, title);
                    294:        print_stagq(h, tt);
                    295:
1.7       kristaps  296:        bufinit(h);
                    297:        bufcat_style(h, "width", "80%");
                    298:        bufcat_style(h, "white-space", "nowrap");
                    299:        bufcat_style(h, "text-align", "center");
                    300:        PAIR_STYLE_INIT(&tag[0], h);
1.4       kristaps  301:        print_otag(h, TAG_TD, 1, tag);
                    302:        print_text(h, b);
                    303:        print_stagq(h, tt);
                    304:
1.7       kristaps  305:        bufinit(h);
                    306:        bufcat_style(h, "width", "10%");
                    307:        bufcat_style(h, "text-align", "right");
                    308:        PAIR_STYLE_INIT(&tag[0], h);
1.4       kristaps  309:        print_otag(h, TAG_TD, 1, tag);
                    310:        print_text(h, title);
                    311:        print_tagq(h, t);
                    312:        return(1);
                    313: }
                    314:
                    315:
                    316: /* ARGSUSED */
                    317: static void
                    318: man_root_post(MAN_ARGS)
                    319: {
1.15      kristaps  320:        struct htmlpair  tag[3];
1.4       kristaps  321:        struct tag      *t, *tt;
1.12      kristaps  322:        char             b[DATESIZ];
1.4       kristaps  323:
1.36      kristaps  324:        if (m->rawdate)
                    325:                strlcpy(b, m->rawdate, DATESIZ);
                    326:        else
                    327:                time2a(m->date, b, DATESIZ);
1.4       kristaps  328:
1.7       kristaps  329:        PAIR_CLASS_INIT(&tag[0], "footer");
                    330:        bufcat_style(h, "width", "100%");
                    331:        PAIR_STYLE_INIT(&tag[1], h);
1.15      kristaps  332:        PAIR_SUMMARY_INIT(&tag[2], "footer");
                    333:
                    334:        t = print_otag(h, TAG_TABLE, 3, tag);
1.4       kristaps  335:        tt = print_otag(h, TAG_TR, 0, NULL);
                    336:
1.7       kristaps  337:        bufinit(h);
                    338:        bufcat_style(h, "width", "50%");
                    339:        PAIR_STYLE_INIT(&tag[0], h);
1.4       kristaps  340:        print_otag(h, TAG_TD, 1, tag);
                    341:        print_text(h, b);
                    342:        print_stagq(h, tt);
                    343:
1.7       kristaps  344:        bufinit(h);
                    345:        bufcat_style(h, "width", "50%");
                    346:        bufcat_style(h, "text-align", "right");
                    347:        PAIR_STYLE_INIT(&tag[0], h);
1.4       kristaps  348:        print_otag(h, TAG_TD, 1, tag);
                    349:        if (m->source)
                    350:                print_text(h, m->source);
                    351:        print_tagq(h, t);
                    352: }
                    353:
                    354:
                    355:
                    356: /* ARGSUSED */
                    357: static int
                    358: man_br_pre(MAN_ARGS)
                    359: {
1.7       kristaps  360:        struct roffsu    su;
                    361:        struct htmlpair  tag;
1.4       kristaps  362:
1.7       kristaps  363:        SCALE_VS_INIT(&su, 1);
                    364:
1.49    ! kristaps  365:        if (MAN_sp == n->tok) {
1.29      kristaps  366:                if (n->child)
                    367:                        a2roffsu(n->child->string, &su, SCALE_VS);
1.49    ! kristaps  368:        } else
1.7       kristaps  369:                su.scale = 0;
1.4       kristaps  370:
1.7       kristaps  371:        bufcat_su(h, "height", &su);
                    372:        PAIR_STYLE_INIT(&tag, h);
1.4       kristaps  373:        print_otag(h, TAG_DIV, 1, &tag);
1.24      kristaps  374:
1.16      kristaps  375:        /* So the div isn't empty: */
                    376:        print_text(h, "\\~");
                    377:
1.7       kristaps  378:        return(0);
1.4       kristaps  379: }
                    380:
                    381:
                    382: /* ARGSUSED */
                    383: static int
                    384: man_SH_pre(MAN_ARGS)
                    385: {
1.7       kristaps  386:        struct htmlpair  tag[2];
                    387:        struct roffsu    su;
1.4       kristaps  388:
                    389:        if (MAN_BODY == n->type) {
1.7       kristaps  390:                SCALE_HS_INIT(&su, INDENT);
                    391:                bufcat_su(h, "margin-left", &su);
                    392:                PAIR_CLASS_INIT(&tag[0], "sec-body");
                    393:                PAIR_STYLE_INIT(&tag[1], h);
1.4       kristaps  394:                print_otag(h, TAG_DIV, 2, tag);
                    395:                return(1);
                    396:        } else if (MAN_BLOCK == n->type) {
1.7       kristaps  397:                PAIR_CLASS_INIT(&tag[0], "sec-block");
1.4       kristaps  398:                if (n->prev && MAN_SH == n->prev->tok)
                    399:                        if (NULL == n->prev->body->child) {
                    400:                                print_otag(h, TAG_DIV, 1, tag);
                    401:                                return(1);
                    402:                        }
                    403:
1.7       kristaps  404:                SCALE_VS_INIT(&su, 1);
                    405:                bufcat_su(h, "margin-top", &su);
1.4       kristaps  406:                if (NULL == n->next)
1.7       kristaps  407:                        bufcat_su(h, "margin-bottom", &su);
                    408:                PAIR_STYLE_INIT(&tag[1], h);
1.4       kristaps  409:                print_otag(h, TAG_DIV, 2, tag);
                    410:                return(1);
                    411:        }
                    412:
1.7       kristaps  413:        PAIR_CLASS_INIT(&tag[0], "sec-head");
1.4       kristaps  414:        print_otag(h, TAG_DIV, 1, tag);
                    415:        return(1);
                    416: }
                    417:
                    418:
                    419: /* ARGSUSED */
                    420: static int
1.8       kristaps  421: man_alt_pre(MAN_ARGS)
                    422: {
                    423:        const struct man_node   *nn;
                    424:        struct tag              *t;
                    425:        int                      i;
1.23      kristaps  426:        enum htmlfont            fp;
1.8       kristaps  427:
                    428:        for (i = 0, nn = n->child; nn; nn = nn->next, i++) {
                    429:                switch (n->tok) {
                    430:                case (MAN_BI):
1.23      kristaps  431:                        fp = i % 2 ? HTMLFONT_ITALIC : HTMLFONT_BOLD;
1.8       kristaps  432:                        break;
                    433:                case (MAN_IB):
1.23      kristaps  434:                        fp = i % 2 ? HTMLFONT_BOLD : HTMLFONT_ITALIC;
1.8       kristaps  435:                        break;
                    436:                case (MAN_RI):
1.23      kristaps  437:                        fp = i % 2 ? HTMLFONT_ITALIC : HTMLFONT_NONE;
1.8       kristaps  438:                        break;
                    439:                case (MAN_IR):
1.23      kristaps  440:                        fp = i % 2 ? HTMLFONT_NONE : HTMLFONT_ITALIC;
1.8       kristaps  441:                        break;
                    442:                case (MAN_BR):
1.23      kristaps  443:                        fp = i % 2 ? HTMLFONT_NONE : HTMLFONT_BOLD;
1.8       kristaps  444:                        break;
                    445:                case (MAN_RB):
1.23      kristaps  446:                        fp = i % 2 ? HTMLFONT_BOLD : HTMLFONT_NONE;
1.8       kristaps  447:                        break;
                    448:                default:
                    449:                        abort();
                    450:                        /* NOTREACHED */
                    451:                }
                    452:
                    453:                if (i)
                    454:                        h->flags |= HTML_NOSPACE;
                    455:
1.24      kristaps  456:                /*
                    457:                 * Open and close the scope with each argument, so that
                    458:                 * internal \f escapes, which are common, are also
                    459:                 * closed out with the scope.
                    460:                 */
1.23      kristaps  461:                t = print_ofont(h, fp);
1.45      kristaps  462:                print_man_node(m, nn, mh, h);
1.21      kristaps  463:                print_tagq(h, t);
1.8       kristaps  464:        }
                    465:
                    466:        return(0);
                    467: }
                    468:
                    469:
                    470: /* ARGSUSED */
                    471: static int
                    472: man_SB_pre(MAN_ARGS)
                    473: {
                    474:        struct htmlpair  tag;
                    475:
1.23      kristaps  476:        /* FIXME: print_ofont(). */
1.8       kristaps  477:        PAIR_CLASS_INIT(&tag, "small bold");
                    478:        print_otag(h, TAG_SPAN, 1, &tag);
                    479:        return(1);
                    480: }
                    481:
                    482:
                    483: /* ARGSUSED */
                    484: static int
                    485: man_SM_pre(MAN_ARGS)
                    486: {
                    487:        struct htmlpair  tag;
                    488:
                    489:        PAIR_CLASS_INIT(&tag, "small");
                    490:        print_otag(h, TAG_SPAN, 1, &tag);
                    491:        return(1);
                    492: }
                    493:
                    494:
                    495: /* ARGSUSED */
                    496: static int
1.4       kristaps  497: man_SS_pre(MAN_ARGS)
                    498: {
                    499:        struct htmlpair  tag[3];
1.7       kristaps  500:        struct roffsu    su;
1.4       kristaps  501:
1.7       kristaps  502:        SCALE_VS_INIT(&su, 1);
1.4       kristaps  503:
                    504:        if (MAN_BODY == n->type) {
1.7       kristaps  505:                PAIR_CLASS_INIT(&tag[0], "ssec-body");
1.4       kristaps  506:                if (n->parent->next && n->child) {
1.7       kristaps  507:                        bufcat_su(h, "margin-bottom", &su);
                    508:                        PAIR_STYLE_INIT(&tag[1], h);
                    509:                        print_otag(h, TAG_DIV, 2, tag);
                    510:                        return(1);
1.4       kristaps  511:                }
                    512:
1.7       kristaps  513:                print_otag(h, TAG_DIV, 1, tag);
1.4       kristaps  514:                return(1);
                    515:        } else if (MAN_BLOCK == n->type) {
1.7       kristaps  516:                PAIR_CLASS_INIT(&tag[0], "ssec-block");
1.4       kristaps  517:                if (n->prev && MAN_SS == n->prev->tok)
                    518:                        if (n->prev->body->child) {
1.7       kristaps  519:                                bufcat_su(h, "margin-top", &su);
                    520:                                PAIR_STYLE_INIT(&tag[1], h);
                    521:                                print_otag(h, TAG_DIV, 2, tag);
                    522:                                return(1);
1.4       kristaps  523:                        }
                    524:
1.7       kristaps  525:                print_otag(h, TAG_DIV, 1, tag);
1.4       kristaps  526:                return(1);
                    527:        }
                    528:
1.7       kristaps  529:        SCALE_HS_INIT(&su, INDENT - HALFINDENT);
                    530:        bufcat_su(h, "margin-left", &su);
                    531:        PAIR_CLASS_INIT(&tag[0], "ssec-head");
                    532:        PAIR_STYLE_INIT(&tag[1], h);
1.4       kristaps  533:        print_otag(h, TAG_DIV, 2, tag);
                    534:        return(1);
                    535: }
                    536:
                    537:
                    538: /* ARGSUSED */
                    539: static int
                    540: man_PP_pre(MAN_ARGS)
                    541: {
1.5       kristaps  542:        struct htmlpair  tag;
1.7       kristaps  543:        struct roffsu    su;
1.5       kristaps  544:        int              i;
1.4       kristaps  545:
1.47      kristaps  546:        if (MAN_BODY == n->type)
1.4       kristaps  547:                return(1);
1.47      kristaps  548:        if (MAN_HEAD == n->type)
                    549:                return(0);
1.4       kristaps  550:
1.5       kristaps  551:        i = 0;
                    552:
1.22      kristaps  553:        if (MAN_ROOT == n->parent->type) {
1.7       kristaps  554:                SCALE_HS_INIT(&su, INDENT);
                    555:                bufcat_su(h, "margin-left", &su);
1.22      kristaps  556:                i = 1;
1.5       kristaps  557:        }
1.22      kristaps  558:        if (n->prev) {
1.7       kristaps  559:                SCALE_VS_INIT(&su, 1);
1.22      kristaps  560:                bufcat_su(h, "margin-top", &su);
                    561:                i = 1;
1.5       kristaps  562:        }
1.4       kristaps  563:
1.7       kristaps  564:        PAIR_STYLE_INIT(&tag, h);
1.22      kristaps  565:        print_otag(h, TAG_DIV, i, &tag);
1.47      kristaps  566:
1.5       kristaps  567:        return(1);
                    568: }
                    569:
                    570:
                    571: /* ARGSUSED */
                    572: static int
                    573: man_IP_pre(MAN_ARGS)
                    574: {
1.7       kristaps  575:        struct roffsu            su;
1.5       kristaps  576:        struct htmlpair          tag;
                    577:        const struct man_node   *nn;
1.7       kristaps  578:        int                      width;
1.5       kristaps  579:
1.7       kristaps  580:        /*
                    581:         * This scattering of 1-BU margins and pads is to make sure that
                    582:         * when text overruns its box, the subsequent text isn't flush
                    583:         * up against it.  However, the rest of the right-hand box must
                    584:         * also be adjusted in consideration of this 1-BU space.
                    585:         */
                    586:
                    587:        if (MAN_BODY == n->type) {
                    588:                SCALE_HS_INIT(&su, INDENT);
                    589:                bufcat_su(h, "margin-left", &su);
                    590:                PAIR_STYLE_INIT(&tag, h);
                    591:                print_otag(h, TAG_DIV, 1, &tag);
1.6       kristaps  592:                return(1);
                    593:        }
                    594:
                    595:        nn = MAN_BLOCK == n->type ?
                    596:                n->head->child : n->parent->head->child;
                    597:
1.7       kristaps  598:        SCALE_HS_INIT(&su, INDENT);
                    599:        width = 0;
1.6       kristaps  600:
1.28      kristaps  601:        /* Width is the last token. */
                    602:
1.7       kristaps  603:        if (MAN_IP == n->tok && NULL != nn)
1.5       kristaps  604:                if (NULL != (nn = nn->next)) {
                    605:                        for ( ; nn->next; nn = nn->next)
                    606:                                /* Do nothing. */ ;
1.7       kristaps  607:                        width = a2width(nn, &su);
1.5       kristaps  608:                }
                    609:
1.28      kristaps  610:        /* Width is the first token. */
                    611:
1.27      kristaps  612:        if (MAN_TP == n->tok && NULL != nn) {
1.28      kristaps  613:                /* Skip past non-text children. */
1.27      kristaps  614:                while (nn && MAN_TEXT != nn->type)
                    615:                        nn = nn->next;
1.28      kristaps  616:                if (nn)
                    617:                        width = a2width(nn, &su);
1.27      kristaps  618:        }
1.7       kristaps  619:
1.5       kristaps  620:        if (MAN_BLOCK == n->type) {
1.7       kristaps  621:                bufcat_su(h, "margin-left", &su);
1.9       kristaps  622:                SCALE_VS_INIT(&su, 1);
                    623:                bufcat_su(h, "margin-top", &su);
1.7       kristaps  624:                bufcat_style(h, "clear", "both");
                    625:                PAIR_STYLE_INIT(&tag, h);
1.5       kristaps  626:                print_otag(h, TAG_DIV, 1, &tag);
                    627:                return(1);
1.6       kristaps  628:        }
                    629:
1.7       kristaps  630:        bufcat_su(h, "min-width", &su);
                    631:        SCALE_INVERT(&su);
                    632:        bufcat_su(h, "margin-left", &su);
                    633:        SCALE_HS_INIT(&su, 1);
                    634:        bufcat_su(h, "margin-right", &su);
                    635:        bufcat_style(h, "clear", "left");
1.6       kristaps  636:
                    637:        if (n->next && n->next->child)
1.7       kristaps  638:                bufcat_style(h, "float", "left");
1.6       kristaps  639:
1.7       kristaps  640:        PAIR_STYLE_INIT(&tag, h);
1.6       kristaps  641:        print_otag(h, TAG_DIV, 1, &tag);
                    642:
1.28      kristaps  643:        /*
                    644:         * Without a length string, we can print all of our children.
                    645:         */
1.7       kristaps  646:
                    647:        if ( ! width)
1.6       kristaps  648:                return(1);
1.27      kristaps  649:
1.28      kristaps  650:        /*
                    651:         * When a length has been specified, we need to carefully print
                    652:         * our child context:  IP gets all children printed but the last
                    653:         * (the width), while TP gets all children printed but the first
                    654:         * (the width).
                    655:         */
1.6       kristaps  656:
1.7       kristaps  657:        if (MAN_IP == n->tok)
                    658:                for (nn = n->child; nn->next; nn = nn->next)
1.45      kristaps  659:                        print_man_node(m, nn, mh, h);
1.7       kristaps  660:        if (MAN_TP == n->tok)
                    661:                for (nn = n->child->next; nn; nn = nn->next)
1.45      kristaps  662:                        print_man_node(m, nn, mh, h);
1.6       kristaps  663:
                    664:        return(0);
                    665: }
                    666:
                    667:
                    668: /* ARGSUSED */
                    669: static int
                    670: man_HP_pre(MAN_ARGS)
                    671: {
                    672:        const struct man_node   *nn;
                    673:        struct htmlpair          tag;
1.7       kristaps  674:        struct roffsu            su;
1.6       kristaps  675:
                    676:        if (MAN_HEAD == n->type)
                    677:                return(0);
                    678:
                    679:        nn = MAN_BLOCK == n->type ?
                    680:                n->head->child : n->parent->head->child;
                    681:
1.7       kristaps  682:        SCALE_HS_INIT(&su, INDENT);
1.6       kristaps  683:
                    684:        if (NULL != nn)
1.7       kristaps  685:                (void)a2width(nn, &su);
1.6       kristaps  686:
                    687:        if (MAN_BLOCK == n->type) {
1.7       kristaps  688:                bufcat_su(h, "margin-left", &su);
1.9       kristaps  689:                SCALE_VS_INIT(&su, 1);
                    690:                bufcat_su(h, "margin-top", &su);
1.7       kristaps  691:                bufcat_style(h, "clear", "both");
                    692:                PAIR_STYLE_INIT(&tag, h);
1.5       kristaps  693:                print_otag(h, TAG_DIV, 1, &tag);
1.6       kristaps  694:                return(1);
                    695:        }
1.5       kristaps  696:
1.7       kristaps  697:        bufcat_su(h, "margin-left", &su);
                    698:        SCALE_INVERT(&su);
                    699:        bufcat_su(h, "text-indent", &su);
1.5       kristaps  700:
1.7       kristaps  701:        PAIR_STYLE_INIT(&tag, h);
1.6       kristaps  702:        print_otag(h, TAG_DIV, 1, &tag);
1.4       kristaps  703:        return(1);
                    704: }
1.6       kristaps  705:
1.8       kristaps  706:
                    707: /* ARGSUSED */
                    708: static int
                    709: man_B_pre(MAN_ARGS)
                    710: {
                    711:
1.23      kristaps  712:        print_ofont(h, HTMLFONT_BOLD);
1.8       kristaps  713:        return(1);
                    714: }
                    715:
                    716:
                    717: /* ARGSUSED */
                    718: static int
                    719: man_I_pre(MAN_ARGS)
                    720: {
1.23      kristaps  721:
                    722:        print_ofont(h, HTMLFONT_ITALIC);
1.8       kristaps  723:        return(1);
1.45      kristaps  724: }
                    725:
                    726:
                    727: /* ARGSUSED */
                    728: static int
                    729: man_literal_pre(MAN_ARGS)
                    730: {
                    731:
1.48      kristaps  732:        if (MAN_nf == n->tok) {
1.45      kristaps  733:                print_otag(h, TAG_BR, 0, NULL);
                    734:                mh->fl |= MANH_LITERAL;
1.48      kristaps  735:        } else
1.45      kristaps  736:                mh->fl &= ~MANH_LITERAL;
                    737:
                    738:        return(1);
                    739: }
                    740:
                    741:
                    742: /* ARGSUSED */
                    743: static int
                    744: man_in_pre(MAN_ARGS)
                    745: {
                    746:
                    747:        print_otag(h, TAG_BR, 0, NULL);
                    748:        return(0);
1.8       kristaps  749: }
                    750:
                    751:
                    752: /* ARGSUSED */
                    753: static int
                    754: man_ign_pre(MAN_ARGS)
                    755: {
                    756:
                    757:        return(0);
                    758: }
1.9       kristaps  759:
                    760:
                    761: /* ARGSUSED */
                    762: static int
                    763: man_RS_pre(MAN_ARGS)
                    764: {
                    765:        struct htmlpair  tag;
                    766:        struct roffsu    su;
                    767:
                    768:        if (MAN_HEAD == n->type)
                    769:                return(0);
                    770:        else if (MAN_BODY == n->type)
                    771:                return(1);
                    772:
                    773:        SCALE_HS_INIT(&su, INDENT);
                    774:        bufcat_su(h, "margin-left", &su);
                    775:
                    776:        if (n->head->child) {
                    777:                SCALE_VS_INIT(&su, 1);
                    778:                a2width(n->head->child, &su);
                    779:                bufcat_su(h, "margin-top", &su);
                    780:        }
                    781:
                    782:        PAIR_STYLE_INIT(&tag, h);
                    783:        print_otag(h, TAG_DIV, 1, &tag);
                    784:        return(1);
                    785: }

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