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Annotation of mandoc/man_html.c, Revision 1.53

1.53    ! kristaps    1: /*     $Id: man_html.c,v 1.52 2010/12/08 10:58:22 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 */
1.4       kristaps  105:        { man_br_pre, NULL }, /* sp */
1.45      kristaps  106:        { man_literal_pre, NULL }, /* nf */
                    107:        { man_literal_pre, NULL }, /* fi */
1.3       kristaps  108:        { NULL, NULL }, /* RE */
1.9       kristaps  109:        { man_RS_pre, NULL }, /* RS */
1.8       kristaps  110:        { man_ign_pre, NULL }, /* DT */
                    111:        { man_ign_pre, NULL }, /* UC */
1.13      kristaps  112:        { man_ign_pre, NULL }, /* PD */
1.34      joerg     113:        { man_ign_pre, NULL }, /* AT */
1.45      kristaps  114:        { man_in_pre, NULL }, /* in */
1.51      kristaps  115:        { man_ign_pre, NULL }, /* ft */
1.3       kristaps  116: };
                    117:
1.1       kristaps  118:
                    119: void
                    120: html_man(void *arg, const struct man *m)
                    121: {
1.3       kristaps  122:        struct html     *h;
                    123:        struct tag      *t;
1.45      kristaps  124:        struct mhtml     mh;
1.3       kristaps  125:
                    126:        h = (struct html *)arg;
                    127:
1.26      kristaps  128:        print_gen_decls(h);
1.3       kristaps  129:
1.45      kristaps  130:        memset(&mh, 0, sizeof(struct mhtml));
                    131:
1.3       kristaps  132:        t = print_otag(h, TAG_HTML, 0, NULL);
1.45      kristaps  133:        print_man(man_meta(m), man_node(m), &mh, h);
1.3       kristaps  134:        print_tagq(h, t);
                    135:
                    136:        printf("\n");
                    137: }
                    138:
                    139:
                    140: static void
                    141: print_man(MAN_ARGS)
                    142: {
                    143:        struct tag      *t;
                    144:
                    145:        t = print_otag(h, TAG_HEAD, 0, NULL);
1.45      kristaps  146:        print_man_head(m, n, mh, h);
1.3       kristaps  147:        print_tagq(h, t);
1.53    ! kristaps  148:
1.3       kristaps  149:        t = print_otag(h, TAG_BODY, 0, NULL);
1.45      kristaps  150:        print_man_nodelist(m, n, mh, h);
1.3       kristaps  151:        print_tagq(h, t);
                    152: }
                    153:
                    154:
                    155: /* ARGSUSED */
                    156: static void
                    157: print_man_head(MAN_ARGS)
                    158: {
                    159:
                    160:        print_gen_head(h);
                    161:        bufinit(h);
1.31      kristaps  162:        buffmt(h, "%s(%s)", m->title, m->msec);
1.3       kristaps  163:
                    164:        print_otag(h, TAG_TITLE, 0, NULL);
                    165:        print_text(h, h->buf);
1.1       kristaps  166: }
1.4       kristaps  167:
                    168:
                    169: static void
                    170: print_man_nodelist(MAN_ARGS)
                    171: {
                    172:
1.45      kristaps  173:        print_man_node(m, n, mh, h);
1.4       kristaps  174:        if (n->next)
1.45      kristaps  175:                print_man_nodelist(m, n->next, mh, h);
1.4       kristaps  176: }
                    177:
                    178:
                    179: static void
                    180: print_man_node(MAN_ARGS)
                    181: {
                    182:        int              child;
                    183:        struct tag      *t;
                    184:
                    185:        child = 1;
1.14      kristaps  186:        t = h->tags.head;
1.4       kristaps  187:
                    188:        bufinit(h);
                    189:
1.28      kristaps  190:        /*
                    191:         * FIXME: embedded elements within next-line scopes (e.g., `br'
                    192:         * within an empty `B') will cause formatting to be forgotten
                    193:         * due to scope closing out.
                    194:         */
                    195:
1.4       kristaps  196:        switch (n->type) {
                    197:        case (MAN_ROOT):
1.45      kristaps  198:                child = man_root_pre(m, n, mh, h);
1.4       kristaps  199:                break;
                    200:        case (MAN_TEXT):
                    201:                print_text(h, n->string);
1.45      kristaps  202:
                    203:                if (MANH_LITERAL & mh->fl)
                    204:                        print_otag(h, TAG_BR, 0, NULL);
                    205:
1.19      kristaps  206:                return;
1.4       kristaps  207:        default:
1.21      kristaps  208:                /*
                    209:                 * Close out scope of font prior to opening a macro
                    210:                 * scope.  Assert that the metafont is on the top of the
                    211:                 * stack (it's never nested).
                    212:                 */
1.20      kristaps  213:                if (h->metaf) {
                    214:                        assert(h->metaf == t);
                    215:                        print_tagq(h, h->metaf);
1.21      kristaps  216:                        assert(NULL == h->metaf);
1.20      kristaps  217:                        t = h->tags.head;
                    218:                }
1.4       kristaps  219:                if (mans[n->tok].pre)
1.45      kristaps  220:                        child = (*mans[n->tok].pre)(m, n, mh, h);
1.4       kristaps  221:                break;
                    222:        }
                    223:
1.21      kristaps  224:        if (child && n->child)
1.45      kristaps  225:                print_man_nodelist(m, n->child, mh, h);
1.21      kristaps  226:
1.24      kristaps  227:        /* This will automatically close out any font scope. */
1.4       kristaps  228:        print_stagq(h, t);
                    229:
                    230:        bufinit(h);
                    231:
                    232:        switch (n->type) {
                    233:        case (MAN_ROOT):
1.45      kristaps  234:                man_root_post(m, n, mh, h);
1.4       kristaps  235:                break;
                    236:        case (MAN_TEXT):
                    237:                break;
                    238:        default:
                    239:                if (mans[n->tok].post)
1.45      kristaps  240:                        (*mans[n->tok].post)(m, n, mh, h);
1.4       kristaps  241:                break;
                    242:        }
                    243: }
                    244:
                    245:
1.5       kristaps  246: static int
1.7       kristaps  247: a2width(const struct man_node *n, struct roffsu *su)
1.5       kristaps  248: {
                    249:
1.6       kristaps  250:        if (MAN_TEXT != n->type)
1.7       kristaps  251:                return(0);
1.11      kristaps  252:        if (a2roffsu(n->string, su, SCALE_BU))
1.7       kristaps  253:                return(1);
1.5       kristaps  254:
1.7       kristaps  255:        return(0);
1.5       kristaps  256: }
                    257:
                    258:
1.40      kristaps  259: /* ARGSUSED */
1.4       kristaps  260: static int
                    261: man_root_pre(MAN_ARGS)
                    262: {
1.15      kristaps  263:        struct htmlpair  tag[3];
1.4       kristaps  264:        struct tag      *t, *tt;
                    265:        char             b[BUFSIZ], title[BUFSIZ];
                    266:
                    267:        b[0] = 0;
                    268:        if (m->vol)
                    269:                (void)strlcat(b, m->vol, BUFSIZ);
                    270:
1.31      kristaps  271:        snprintf(title, BUFSIZ - 1, "%s(%s)", m->title, m->msec);
1.4       kristaps  272:
1.7       kristaps  273:        PAIR_CLASS_INIT(&tag[0], "header");
                    274:        bufcat_style(h, "width", "100%");
                    275:        PAIR_STYLE_INIT(&tag[1], h);
1.15      kristaps  276:        PAIR_SUMMARY_INIT(&tag[2], "header");
                    277:
                    278:        t = print_otag(h, TAG_TABLE, 3, tag);
1.4       kristaps  279:        tt = print_otag(h, TAG_TR, 0, NULL);
                    280:
1.7       kristaps  281:        bufinit(h);
                    282:        bufcat_style(h, "width", "10%");
                    283:        PAIR_STYLE_INIT(&tag[0], h);
1.4       kristaps  284:        print_otag(h, TAG_TD, 1, tag);
                    285:        print_text(h, title);
                    286:        print_stagq(h, tt);
                    287:
1.7       kristaps  288:        bufinit(h);
                    289:        bufcat_style(h, "width", "80%");
                    290:        bufcat_style(h, "white-space", "nowrap");
                    291:        bufcat_style(h, "text-align", "center");
                    292:        PAIR_STYLE_INIT(&tag[0], h);
1.4       kristaps  293:        print_otag(h, TAG_TD, 1, tag);
                    294:        print_text(h, b);
                    295:        print_stagq(h, tt);
                    296:
1.7       kristaps  297:        bufinit(h);
                    298:        bufcat_style(h, "width", "10%");
                    299:        bufcat_style(h, "text-align", "right");
                    300:        PAIR_STYLE_INIT(&tag[0], h);
1.4       kristaps  301:        print_otag(h, TAG_TD, 1, tag);
                    302:        print_text(h, title);
                    303:        print_tagq(h, t);
                    304:        return(1);
                    305: }
                    306:
                    307:
                    308: /* ARGSUSED */
                    309: static void
                    310: man_root_post(MAN_ARGS)
                    311: {
1.15      kristaps  312:        struct htmlpair  tag[3];
1.4       kristaps  313:        struct tag      *t, *tt;
1.12      kristaps  314:        char             b[DATESIZ];
1.4       kristaps  315:
1.36      kristaps  316:        if (m->rawdate)
                    317:                strlcpy(b, m->rawdate, DATESIZ);
                    318:        else
                    319:                time2a(m->date, b, DATESIZ);
1.4       kristaps  320:
1.7       kristaps  321:        PAIR_CLASS_INIT(&tag[0], "footer");
                    322:        bufcat_style(h, "width", "100%");
                    323:        PAIR_STYLE_INIT(&tag[1], h);
1.15      kristaps  324:        PAIR_SUMMARY_INIT(&tag[2], "footer");
                    325:
                    326:        t = print_otag(h, TAG_TABLE, 3, tag);
1.4       kristaps  327:        tt = print_otag(h, TAG_TR, 0, NULL);
                    328:
1.7       kristaps  329:        bufinit(h);
                    330:        bufcat_style(h, "width", "50%");
                    331:        PAIR_STYLE_INIT(&tag[0], h);
1.4       kristaps  332:        print_otag(h, TAG_TD, 1, tag);
                    333:        print_text(h, b);
                    334:        print_stagq(h, tt);
                    335:
1.7       kristaps  336:        bufinit(h);
                    337:        bufcat_style(h, "width", "50%");
                    338:        bufcat_style(h, "text-align", "right");
                    339:        PAIR_STYLE_INIT(&tag[0], h);
1.4       kristaps  340:        print_otag(h, TAG_TD, 1, tag);
                    341:        if (m->source)
                    342:                print_text(h, m->source);
                    343:        print_tagq(h, t);
                    344: }
                    345:
                    346:
                    347:
                    348: /* ARGSUSED */
                    349: static int
                    350: man_br_pre(MAN_ARGS)
                    351: {
1.7       kristaps  352:        struct roffsu    su;
                    353:        struct htmlpair  tag;
1.4       kristaps  354:
1.7       kristaps  355:        SCALE_VS_INIT(&su, 1);
                    356:
1.49      kristaps  357:        if (MAN_sp == n->tok) {
1.29      kristaps  358:                if (n->child)
                    359:                        a2roffsu(n->child->string, &su, SCALE_VS);
1.49      kristaps  360:        } else
1.7       kristaps  361:                su.scale = 0;
1.4       kristaps  362:
1.7       kristaps  363:        bufcat_su(h, "height", &su);
                    364:        PAIR_STYLE_INIT(&tag, h);
1.4       kristaps  365:        print_otag(h, TAG_DIV, 1, &tag);
1.24      kristaps  366:
1.16      kristaps  367:        /* So the div isn't empty: */
                    368:        print_text(h, "\\~");
                    369:
1.7       kristaps  370:        return(0);
1.4       kristaps  371: }
                    372:
                    373:
                    374: /* ARGSUSED */
                    375: static int
                    376: man_SH_pre(MAN_ARGS)
                    377: {
1.7       kristaps  378:        struct htmlpair  tag[2];
                    379:        struct roffsu    su;
1.4       kristaps  380:
                    381:        if (MAN_BODY == n->type) {
1.7       kristaps  382:                SCALE_HS_INIT(&su, INDENT);
                    383:                bufcat_su(h, "margin-left", &su);
                    384:                PAIR_CLASS_INIT(&tag[0], "sec-body");
                    385:                PAIR_STYLE_INIT(&tag[1], h);
1.4       kristaps  386:                print_otag(h, TAG_DIV, 2, tag);
                    387:                return(1);
                    388:        } else if (MAN_BLOCK == n->type) {
1.7       kristaps  389:                PAIR_CLASS_INIT(&tag[0], "sec-block");
1.4       kristaps  390:                if (n->prev && MAN_SH == n->prev->tok)
                    391:                        if (NULL == n->prev->body->child) {
                    392:                                print_otag(h, TAG_DIV, 1, tag);
                    393:                                return(1);
                    394:                        }
                    395:
1.7       kristaps  396:                SCALE_VS_INIT(&su, 1);
                    397:                bufcat_su(h, "margin-top", &su);
1.4       kristaps  398:                if (NULL == n->next)
1.7       kristaps  399:                        bufcat_su(h, "margin-bottom", &su);
                    400:                PAIR_STYLE_INIT(&tag[1], h);
1.4       kristaps  401:                print_otag(h, TAG_DIV, 2, tag);
                    402:                return(1);
                    403:        }
                    404:
1.7       kristaps  405:        PAIR_CLASS_INIT(&tag[0], "sec-head");
1.4       kristaps  406:        print_otag(h, TAG_DIV, 1, tag);
                    407:        return(1);
                    408: }
                    409:
                    410:
                    411: /* ARGSUSED */
                    412: static int
1.8       kristaps  413: man_alt_pre(MAN_ARGS)
                    414: {
                    415:        const struct man_node   *nn;
                    416:        struct tag              *t;
                    417:        int                      i;
1.23      kristaps  418:        enum htmlfont            fp;
1.8       kristaps  419:
                    420:        for (i = 0, nn = n->child; nn; nn = nn->next, i++) {
                    421:                switch (n->tok) {
                    422:                case (MAN_BI):
1.23      kristaps  423:                        fp = i % 2 ? HTMLFONT_ITALIC : HTMLFONT_BOLD;
1.8       kristaps  424:                        break;
                    425:                case (MAN_IB):
1.23      kristaps  426:                        fp = i % 2 ? HTMLFONT_BOLD : HTMLFONT_ITALIC;
1.8       kristaps  427:                        break;
                    428:                case (MAN_RI):
1.23      kristaps  429:                        fp = i % 2 ? HTMLFONT_ITALIC : HTMLFONT_NONE;
1.8       kristaps  430:                        break;
                    431:                case (MAN_IR):
1.23      kristaps  432:                        fp = i % 2 ? HTMLFONT_NONE : HTMLFONT_ITALIC;
1.8       kristaps  433:                        break;
                    434:                case (MAN_BR):
1.23      kristaps  435:                        fp = i % 2 ? HTMLFONT_NONE : HTMLFONT_BOLD;
1.8       kristaps  436:                        break;
                    437:                case (MAN_RB):
1.23      kristaps  438:                        fp = i % 2 ? HTMLFONT_BOLD : HTMLFONT_NONE;
1.8       kristaps  439:                        break;
                    440:                default:
                    441:                        abort();
                    442:                        /* NOTREACHED */
                    443:                }
                    444:
                    445:                if (i)
                    446:                        h->flags |= HTML_NOSPACE;
                    447:
1.24      kristaps  448:                /*
                    449:                 * Open and close the scope with each argument, so that
                    450:                 * internal \f escapes, which are common, are also
                    451:                 * closed out with the scope.
                    452:                 */
1.23      kristaps  453:                t = print_ofont(h, fp);
1.45      kristaps  454:                print_man_node(m, nn, mh, h);
1.21      kristaps  455:                print_tagq(h, t);
1.8       kristaps  456:        }
                    457:
                    458:        return(0);
                    459: }
                    460:
                    461:
                    462: /* ARGSUSED */
                    463: static int
                    464: man_SB_pre(MAN_ARGS)
                    465: {
                    466:        struct htmlpair  tag;
                    467:
1.23      kristaps  468:        /* FIXME: print_ofont(). */
1.8       kristaps  469:        PAIR_CLASS_INIT(&tag, "small bold");
                    470:        print_otag(h, TAG_SPAN, 1, &tag);
                    471:        return(1);
                    472: }
                    473:
                    474:
                    475: /* ARGSUSED */
                    476: static int
                    477: man_SM_pre(MAN_ARGS)
                    478: {
                    479:        struct htmlpair  tag;
                    480:
                    481:        PAIR_CLASS_INIT(&tag, "small");
                    482:        print_otag(h, TAG_SPAN, 1, &tag);
                    483:        return(1);
                    484: }
                    485:
                    486:
                    487: /* ARGSUSED */
                    488: static int
1.4       kristaps  489: man_SS_pre(MAN_ARGS)
                    490: {
                    491:        struct htmlpair  tag[3];
1.7       kristaps  492:        struct roffsu    su;
1.4       kristaps  493:
1.7       kristaps  494:        SCALE_VS_INIT(&su, 1);
1.4       kristaps  495:
                    496:        if (MAN_BODY == n->type) {
1.7       kristaps  497:                PAIR_CLASS_INIT(&tag[0], "ssec-body");
1.4       kristaps  498:                if (n->parent->next && n->child) {
1.7       kristaps  499:                        bufcat_su(h, "margin-bottom", &su);
                    500:                        PAIR_STYLE_INIT(&tag[1], h);
                    501:                        print_otag(h, TAG_DIV, 2, tag);
                    502:                        return(1);
1.4       kristaps  503:                }
                    504:
1.7       kristaps  505:                print_otag(h, TAG_DIV, 1, tag);
1.4       kristaps  506:                return(1);
                    507:        } else if (MAN_BLOCK == n->type) {
1.7       kristaps  508:                PAIR_CLASS_INIT(&tag[0], "ssec-block");
1.4       kristaps  509:                if (n->prev && MAN_SS == n->prev->tok)
                    510:                        if (n->prev->body->child) {
1.7       kristaps  511:                                bufcat_su(h, "margin-top", &su);
                    512:                                PAIR_STYLE_INIT(&tag[1], h);
                    513:                                print_otag(h, TAG_DIV, 2, tag);
                    514:                                return(1);
1.4       kristaps  515:                        }
                    516:
1.7       kristaps  517:                print_otag(h, TAG_DIV, 1, tag);
1.4       kristaps  518:                return(1);
                    519:        }
                    520:
1.7       kristaps  521:        SCALE_HS_INIT(&su, INDENT - HALFINDENT);
                    522:        bufcat_su(h, "margin-left", &su);
                    523:        PAIR_CLASS_INIT(&tag[0], "ssec-head");
                    524:        PAIR_STYLE_INIT(&tag[1], h);
1.4       kristaps  525:        print_otag(h, TAG_DIV, 2, tag);
                    526:        return(1);
                    527: }
                    528:
                    529:
                    530: /* ARGSUSED */
                    531: static int
                    532: man_PP_pre(MAN_ARGS)
                    533: {
1.5       kristaps  534:        struct htmlpair  tag;
1.7       kristaps  535:        struct roffsu    su;
1.5       kristaps  536:        int              i;
1.4       kristaps  537:
1.47      kristaps  538:        if (MAN_BODY == n->type)
1.4       kristaps  539:                return(1);
1.47      kristaps  540:        if (MAN_HEAD == n->type)
                    541:                return(0);
1.4       kristaps  542:
1.5       kristaps  543:        i = 0;
                    544:
1.22      kristaps  545:        if (MAN_ROOT == n->parent->type) {
1.7       kristaps  546:                SCALE_HS_INIT(&su, INDENT);
                    547:                bufcat_su(h, "margin-left", &su);
1.22      kristaps  548:                i = 1;
1.5       kristaps  549:        }
1.22      kristaps  550:        if (n->prev) {
1.7       kristaps  551:                SCALE_VS_INIT(&su, 1);
1.22      kristaps  552:                bufcat_su(h, "margin-top", &su);
                    553:                i = 1;
1.5       kristaps  554:        }
1.4       kristaps  555:
1.7       kristaps  556:        PAIR_STYLE_INIT(&tag, h);
1.22      kristaps  557:        print_otag(h, TAG_DIV, i, &tag);
1.47      kristaps  558:
1.5       kristaps  559:        return(1);
                    560: }
                    561:
                    562:
                    563: /* ARGSUSED */
                    564: static int
                    565: man_IP_pre(MAN_ARGS)
                    566: {
1.7       kristaps  567:        struct roffsu            su;
1.5       kristaps  568:        struct htmlpair          tag;
                    569:        const struct man_node   *nn;
1.7       kristaps  570:        int                      width;
1.5       kristaps  571:
1.7       kristaps  572:        /*
                    573:         * This scattering of 1-BU margins and pads is to make sure that
                    574:         * when text overruns its box, the subsequent text isn't flush
                    575:         * up against it.  However, the rest of the right-hand box must
                    576:         * also be adjusted in consideration of this 1-BU space.
                    577:         */
                    578:
                    579:        if (MAN_BODY == n->type) {
                    580:                SCALE_HS_INIT(&su, INDENT);
                    581:                bufcat_su(h, "margin-left", &su);
                    582:                PAIR_STYLE_INIT(&tag, h);
                    583:                print_otag(h, TAG_DIV, 1, &tag);
1.6       kristaps  584:                return(1);
                    585:        }
                    586:
                    587:        nn = MAN_BLOCK == n->type ?
                    588:                n->head->child : n->parent->head->child;
                    589:
1.7       kristaps  590:        SCALE_HS_INIT(&su, INDENT);
                    591:        width = 0;
1.6       kristaps  592:
1.28      kristaps  593:        /* Width is the last token. */
                    594:
1.7       kristaps  595:        if (MAN_IP == n->tok && NULL != nn)
1.5       kristaps  596:                if (NULL != (nn = nn->next)) {
                    597:                        for ( ; nn->next; nn = nn->next)
                    598:                                /* Do nothing. */ ;
1.7       kristaps  599:                        width = a2width(nn, &su);
1.5       kristaps  600:                }
                    601:
1.28      kristaps  602:        /* Width is the first token. */
                    603:
1.27      kristaps  604:        if (MAN_TP == n->tok && NULL != nn) {
1.28      kristaps  605:                /* Skip past non-text children. */
1.27      kristaps  606:                while (nn && MAN_TEXT != nn->type)
                    607:                        nn = nn->next;
1.28      kristaps  608:                if (nn)
                    609:                        width = a2width(nn, &su);
1.27      kristaps  610:        }
1.7       kristaps  611:
1.5       kristaps  612:        if (MAN_BLOCK == n->type) {
1.7       kristaps  613:                bufcat_su(h, "margin-left", &su);
1.9       kristaps  614:                SCALE_VS_INIT(&su, 1);
                    615:                bufcat_su(h, "margin-top", &su);
1.7       kristaps  616:                bufcat_style(h, "clear", "both");
                    617:                PAIR_STYLE_INIT(&tag, h);
1.5       kristaps  618:                print_otag(h, TAG_DIV, 1, &tag);
                    619:                return(1);
1.6       kristaps  620:        }
                    621:
1.7       kristaps  622:        bufcat_su(h, "min-width", &su);
                    623:        SCALE_INVERT(&su);
                    624:        bufcat_su(h, "margin-left", &su);
                    625:        SCALE_HS_INIT(&su, 1);
                    626:        bufcat_su(h, "margin-right", &su);
                    627:        bufcat_style(h, "clear", "left");
1.6       kristaps  628:
                    629:        if (n->next && n->next->child)
1.7       kristaps  630:                bufcat_style(h, "float", "left");
1.6       kristaps  631:
1.7       kristaps  632:        PAIR_STYLE_INIT(&tag, h);
1.6       kristaps  633:        print_otag(h, TAG_DIV, 1, &tag);
                    634:
1.28      kristaps  635:        /*
                    636:         * Without a length string, we can print all of our children.
                    637:         */
1.7       kristaps  638:
                    639:        if ( ! width)
1.6       kristaps  640:                return(1);
1.27      kristaps  641:
1.28      kristaps  642:        /*
                    643:         * When a length has been specified, we need to carefully print
                    644:         * our child context:  IP gets all children printed but the last
                    645:         * (the width), while TP gets all children printed but the first
                    646:         * (the width).
                    647:         */
1.6       kristaps  648:
1.7       kristaps  649:        if (MAN_IP == n->tok)
                    650:                for (nn = n->child; nn->next; nn = nn->next)
1.45      kristaps  651:                        print_man_node(m, nn, mh, h);
1.7       kristaps  652:        if (MAN_TP == n->tok)
                    653:                for (nn = n->child->next; nn; nn = nn->next)
1.45      kristaps  654:                        print_man_node(m, nn, mh, h);
1.6       kristaps  655:
                    656:        return(0);
                    657: }
                    658:
                    659:
                    660: /* ARGSUSED */
                    661: static int
                    662: man_HP_pre(MAN_ARGS)
                    663: {
                    664:        const struct man_node   *nn;
                    665:        struct htmlpair          tag;
1.7       kristaps  666:        struct roffsu            su;
1.6       kristaps  667:
                    668:        if (MAN_HEAD == n->type)
                    669:                return(0);
                    670:
                    671:        nn = MAN_BLOCK == n->type ?
                    672:                n->head->child : n->parent->head->child;
                    673:
1.7       kristaps  674:        SCALE_HS_INIT(&su, INDENT);
1.6       kristaps  675:
                    676:        if (NULL != nn)
1.7       kristaps  677:                (void)a2width(nn, &su);
1.6       kristaps  678:
                    679:        if (MAN_BLOCK == n->type) {
1.7       kristaps  680:                bufcat_su(h, "margin-left", &su);
1.9       kristaps  681:                SCALE_VS_INIT(&su, 1);
                    682:                bufcat_su(h, "margin-top", &su);
1.7       kristaps  683:                bufcat_style(h, "clear", "both");
                    684:                PAIR_STYLE_INIT(&tag, h);
1.5       kristaps  685:                print_otag(h, TAG_DIV, 1, &tag);
1.6       kristaps  686:                return(1);
                    687:        }
1.5       kristaps  688:
1.7       kristaps  689:        bufcat_su(h, "margin-left", &su);
                    690:        SCALE_INVERT(&su);
                    691:        bufcat_su(h, "text-indent", &su);
1.5       kristaps  692:
1.7       kristaps  693:        PAIR_STYLE_INIT(&tag, h);
1.6       kristaps  694:        print_otag(h, TAG_DIV, 1, &tag);
1.4       kristaps  695:        return(1);
                    696: }
1.6       kristaps  697:
1.8       kristaps  698:
                    699: /* ARGSUSED */
                    700: static int
                    701: man_B_pre(MAN_ARGS)
                    702: {
                    703:
1.23      kristaps  704:        print_ofont(h, HTMLFONT_BOLD);
1.8       kristaps  705:        return(1);
                    706: }
                    707:
                    708:
                    709: /* ARGSUSED */
                    710: static int
                    711: man_I_pre(MAN_ARGS)
                    712: {
1.23      kristaps  713:
                    714:        print_ofont(h, HTMLFONT_ITALIC);
1.8       kristaps  715:        return(1);
1.45      kristaps  716: }
                    717:
                    718:
                    719: /* ARGSUSED */
                    720: static int
                    721: man_literal_pre(MAN_ARGS)
                    722: {
                    723:
1.48      kristaps  724:        if (MAN_nf == n->tok) {
1.45      kristaps  725:                print_otag(h, TAG_BR, 0, NULL);
                    726:                mh->fl |= MANH_LITERAL;
1.48      kristaps  727:        } else
1.45      kristaps  728:                mh->fl &= ~MANH_LITERAL;
                    729:
                    730:        return(1);
                    731: }
                    732:
                    733:
                    734: /* ARGSUSED */
                    735: static int
                    736: man_in_pre(MAN_ARGS)
                    737: {
                    738:
                    739:        print_otag(h, TAG_BR, 0, NULL);
                    740:        return(0);
1.8       kristaps  741: }
                    742:
                    743:
                    744: /* ARGSUSED */
                    745: static int
                    746: man_ign_pre(MAN_ARGS)
                    747: {
                    748:
                    749:        return(0);
                    750: }
1.9       kristaps  751:
                    752:
                    753: /* ARGSUSED */
                    754: static int
                    755: man_RS_pre(MAN_ARGS)
                    756: {
                    757:        struct htmlpair  tag;
                    758:        struct roffsu    su;
                    759:
                    760:        if (MAN_HEAD == n->type)
                    761:                return(0);
                    762:        else if (MAN_BODY == n->type)
                    763:                return(1);
                    764:
                    765:        SCALE_HS_INIT(&su, INDENT);
                    766:        bufcat_su(h, "margin-left", &su);
                    767:
                    768:        if (n->head->child) {
                    769:                SCALE_VS_INIT(&su, 1);
                    770:                a2width(n->head->child, &su);
                    771:                bufcat_su(h, "margin-top", &su);
                    772:        }
                    773:
                    774:        PAIR_STYLE_INIT(&tag, h);
                    775:        print_otag(h, TAG_DIV, 1, &tag);
                    776:        return(1);
                    777: }

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