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Annotation of mandoc/man_html.c, Revision 1.51

1.51    ! kristaps    1: /*     $Id: man_html.c,v 1.50 2010/12/06 15:31:19 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 */
1.51    ! kristaps  117:        { man_ign_pre, NULL }, /* ft */
1.3       kristaps  118: };
                    119:
1.1       kristaps  120:
                    121: void
                    122: html_man(void *arg, const struct man *m)
                    123: {
1.3       kristaps  124:        struct html     *h;
                    125:        struct tag      *t;
1.45      kristaps  126:        struct mhtml     mh;
1.3       kristaps  127:
                    128:        h = (struct html *)arg;
                    129:
1.26      kristaps  130:        print_gen_decls(h);
1.3       kristaps  131:
1.45      kristaps  132:        memset(&mh, 0, sizeof(struct mhtml));
                    133:
1.3       kristaps  134:        t = print_otag(h, TAG_HTML, 0, NULL);
1.45      kristaps  135:        print_man(man_meta(m), man_node(m), &mh, h);
1.3       kristaps  136:        print_tagq(h, t);
                    137:
                    138:        printf("\n");
                    139: }
                    140:
                    141:
                    142: static void
                    143: print_man(MAN_ARGS)
                    144: {
                    145:        struct tag      *t;
                    146:        struct htmlpair  tag;
                    147:
                    148:        t = print_otag(h, TAG_HEAD, 0, NULL);
                    149:
1.45      kristaps  150:        print_man_head(m, n, mh, h);
1.3       kristaps  151:        print_tagq(h, t);
                    152:        t = print_otag(h, TAG_BODY, 0, NULL);
                    153:
                    154:        tag.key = ATTR_CLASS;
                    155:        tag.val = "body";
                    156:        print_otag(h, TAG_DIV, 1, &tag);
                    157:
1.45      kristaps  158:        print_man_nodelist(m, n, mh, h);
1.3       kristaps  159:
                    160:        print_tagq(h, t);
                    161: }
                    162:
                    163:
                    164: /* ARGSUSED */
                    165: static void
                    166: print_man_head(MAN_ARGS)
                    167: {
                    168:
                    169:        print_gen_head(h);
                    170:        bufinit(h);
1.31      kristaps  171:        buffmt(h, "%s(%s)", m->title, m->msec);
1.3       kristaps  172:
                    173:        print_otag(h, TAG_TITLE, 0, NULL);
                    174:        print_text(h, h->buf);
1.1       kristaps  175: }
1.4       kristaps  176:
                    177:
                    178: static void
                    179: print_man_nodelist(MAN_ARGS)
                    180: {
                    181:
1.45      kristaps  182:        print_man_node(m, n, mh, h);
1.4       kristaps  183:        if (n->next)
1.45      kristaps  184:                print_man_nodelist(m, n->next, mh, h);
1.4       kristaps  185: }
                    186:
                    187:
                    188: static void
                    189: print_man_node(MAN_ARGS)
                    190: {
                    191:        int              child;
                    192:        struct tag      *t;
                    193:
                    194:        child = 1;
1.14      kristaps  195:        t = h->tags.head;
1.4       kristaps  196:
                    197:        bufinit(h);
                    198:
1.28      kristaps  199:        /*
                    200:         * FIXME: embedded elements within next-line scopes (e.g., `br'
                    201:         * within an empty `B') will cause formatting to be forgotten
                    202:         * due to scope closing out.
                    203:         */
                    204:
1.4       kristaps  205:        switch (n->type) {
                    206:        case (MAN_ROOT):
1.45      kristaps  207:                child = man_root_pre(m, n, mh, h);
1.4       kristaps  208:                break;
                    209:        case (MAN_TEXT):
                    210:                print_text(h, n->string);
1.45      kristaps  211:
                    212:                if (MANH_LITERAL & mh->fl)
                    213:                        print_otag(h, TAG_BR, 0, NULL);
                    214:
1.19      kristaps  215:                return;
1.4       kristaps  216:        default:
1.21      kristaps  217:                /*
                    218:                 * Close out scope of font prior to opening a macro
                    219:                 * scope.  Assert that the metafont is on the top of the
                    220:                 * stack (it's never nested).
                    221:                 */
1.20      kristaps  222:                if (h->metaf) {
                    223:                        assert(h->metaf == t);
                    224:                        print_tagq(h, h->metaf);
1.21      kristaps  225:                        assert(NULL == h->metaf);
1.20      kristaps  226:                        t = h->tags.head;
                    227:                }
1.4       kristaps  228:                if (mans[n->tok].pre)
1.45      kristaps  229:                        child = (*mans[n->tok].pre)(m, n, mh, h);
1.4       kristaps  230:                break;
                    231:        }
                    232:
1.21      kristaps  233:        if (child && n->child)
1.45      kristaps  234:                print_man_nodelist(m, n->child, mh, h);
1.21      kristaps  235:
1.24      kristaps  236:        /* This will automatically close out any font scope. */
1.4       kristaps  237:        print_stagq(h, t);
                    238:
                    239:        bufinit(h);
                    240:
                    241:        switch (n->type) {
                    242:        case (MAN_ROOT):
1.45      kristaps  243:                man_root_post(m, n, mh, h);
1.4       kristaps  244:                break;
                    245:        case (MAN_TEXT):
                    246:                break;
                    247:        default:
                    248:                if (mans[n->tok].post)
1.45      kristaps  249:                        (*mans[n->tok].post)(m, n, mh, h);
1.4       kristaps  250:                break;
                    251:        }
                    252: }
                    253:
                    254:
1.5       kristaps  255: static int
1.7       kristaps  256: a2width(const struct man_node *n, struct roffsu *su)
1.5       kristaps  257: {
                    258:
1.6       kristaps  259:        if (MAN_TEXT != n->type)
1.7       kristaps  260:                return(0);
1.11      kristaps  261:        if (a2roffsu(n->string, su, SCALE_BU))
1.7       kristaps  262:                return(1);
1.5       kristaps  263:
1.7       kristaps  264:        return(0);
1.5       kristaps  265: }
                    266:
                    267:
1.40      kristaps  268: /* ARGSUSED */
1.4       kristaps  269: static int
                    270: man_root_pre(MAN_ARGS)
                    271: {
1.15      kristaps  272:        struct htmlpair  tag[3];
1.4       kristaps  273:        struct tag      *t, *tt;
                    274:        char             b[BUFSIZ], title[BUFSIZ];
                    275:
                    276:        b[0] = 0;
                    277:        if (m->vol)
                    278:                (void)strlcat(b, m->vol, BUFSIZ);
                    279:
1.31      kristaps  280:        snprintf(title, BUFSIZ - 1, "%s(%s)", m->title, m->msec);
1.4       kristaps  281:
1.7       kristaps  282:        PAIR_CLASS_INIT(&tag[0], "header");
                    283:        bufcat_style(h, "width", "100%");
                    284:        PAIR_STYLE_INIT(&tag[1], h);
1.15      kristaps  285:        PAIR_SUMMARY_INIT(&tag[2], "header");
                    286:
                    287:        t = print_otag(h, TAG_TABLE, 3, tag);
1.4       kristaps  288:        tt = print_otag(h, TAG_TR, 0, NULL);
                    289:
1.7       kristaps  290:        bufinit(h);
                    291:        bufcat_style(h, "width", "10%");
                    292:        PAIR_STYLE_INIT(&tag[0], h);
1.4       kristaps  293:        print_otag(h, TAG_TD, 1, tag);
                    294:        print_text(h, title);
                    295:        print_stagq(h, tt);
                    296:
1.7       kristaps  297:        bufinit(h);
                    298:        bufcat_style(h, "width", "80%");
                    299:        bufcat_style(h, "white-space", "nowrap");
                    300:        bufcat_style(h, "text-align", "center");
                    301:        PAIR_STYLE_INIT(&tag[0], h);
1.4       kristaps  302:        print_otag(h, TAG_TD, 1, tag);
                    303:        print_text(h, b);
                    304:        print_stagq(h, tt);
                    305:
1.7       kristaps  306:        bufinit(h);
                    307:        bufcat_style(h, "width", "10%");
                    308:        bufcat_style(h, "text-align", "right");
                    309:        PAIR_STYLE_INIT(&tag[0], h);
1.4       kristaps  310:        print_otag(h, TAG_TD, 1, tag);
                    311:        print_text(h, title);
                    312:        print_tagq(h, t);
                    313:        return(1);
                    314: }
                    315:
                    316:
                    317: /* ARGSUSED */
                    318: static void
                    319: man_root_post(MAN_ARGS)
                    320: {
1.15      kristaps  321:        struct htmlpair  tag[3];
1.4       kristaps  322:        struct tag      *t, *tt;
1.12      kristaps  323:        char             b[DATESIZ];
1.4       kristaps  324:
1.36      kristaps  325:        if (m->rawdate)
                    326:                strlcpy(b, m->rawdate, DATESIZ);
                    327:        else
                    328:                time2a(m->date, b, DATESIZ);
1.4       kristaps  329:
1.7       kristaps  330:        PAIR_CLASS_INIT(&tag[0], "footer");
                    331:        bufcat_style(h, "width", "100%");
                    332:        PAIR_STYLE_INIT(&tag[1], h);
1.15      kristaps  333:        PAIR_SUMMARY_INIT(&tag[2], "footer");
                    334:
                    335:        t = print_otag(h, TAG_TABLE, 3, tag);
1.4       kristaps  336:        tt = print_otag(h, TAG_TR, 0, NULL);
                    337:
1.7       kristaps  338:        bufinit(h);
                    339:        bufcat_style(h, "width", "50%");
                    340:        PAIR_STYLE_INIT(&tag[0], h);
1.4       kristaps  341:        print_otag(h, TAG_TD, 1, tag);
                    342:        print_text(h, b);
                    343:        print_stagq(h, tt);
                    344:
1.7       kristaps  345:        bufinit(h);
                    346:        bufcat_style(h, "width", "50%");
                    347:        bufcat_style(h, "text-align", "right");
                    348:        PAIR_STYLE_INIT(&tag[0], h);
1.4       kristaps  349:        print_otag(h, TAG_TD, 1, tag);
                    350:        if (m->source)
                    351:                print_text(h, m->source);
                    352:        print_tagq(h, t);
                    353: }
                    354:
                    355:
                    356:
                    357: /* ARGSUSED */
                    358: static int
                    359: man_br_pre(MAN_ARGS)
                    360: {
1.7       kristaps  361:        struct roffsu    su;
                    362:        struct htmlpair  tag;
1.4       kristaps  363:
1.7       kristaps  364:        SCALE_VS_INIT(&su, 1);
                    365:
1.49      kristaps  366:        if (MAN_sp == n->tok) {
1.29      kristaps  367:                if (n->child)
                    368:                        a2roffsu(n->child->string, &su, SCALE_VS);
1.49      kristaps  369:        } else
1.7       kristaps  370:                su.scale = 0;
1.4       kristaps  371:
1.7       kristaps  372:        bufcat_su(h, "height", &su);
                    373:        PAIR_STYLE_INIT(&tag, h);
1.4       kristaps  374:        print_otag(h, TAG_DIV, 1, &tag);
1.24      kristaps  375:
1.16      kristaps  376:        /* So the div isn't empty: */
                    377:        print_text(h, "\\~");
                    378:
1.7       kristaps  379:        return(0);
1.4       kristaps  380: }
                    381:
                    382:
                    383: /* ARGSUSED */
                    384: static int
                    385: man_SH_pre(MAN_ARGS)
                    386: {
1.7       kristaps  387:        struct htmlpair  tag[2];
                    388:        struct roffsu    su;
1.4       kristaps  389:
                    390:        if (MAN_BODY == n->type) {
1.7       kristaps  391:                SCALE_HS_INIT(&su, INDENT);
                    392:                bufcat_su(h, "margin-left", &su);
                    393:                PAIR_CLASS_INIT(&tag[0], "sec-body");
                    394:                PAIR_STYLE_INIT(&tag[1], h);
1.4       kristaps  395:                print_otag(h, TAG_DIV, 2, tag);
                    396:                return(1);
                    397:        } else if (MAN_BLOCK == n->type) {
1.7       kristaps  398:                PAIR_CLASS_INIT(&tag[0], "sec-block");
1.4       kristaps  399:                if (n->prev && MAN_SH == n->prev->tok)
                    400:                        if (NULL == n->prev->body->child) {
                    401:                                print_otag(h, TAG_DIV, 1, tag);
                    402:                                return(1);
                    403:                        }
                    404:
1.7       kristaps  405:                SCALE_VS_INIT(&su, 1);
                    406:                bufcat_su(h, "margin-top", &su);
1.4       kristaps  407:                if (NULL == n->next)
1.7       kristaps  408:                        bufcat_su(h, "margin-bottom", &su);
                    409:                PAIR_STYLE_INIT(&tag[1], h);
1.4       kristaps  410:                print_otag(h, TAG_DIV, 2, tag);
                    411:                return(1);
                    412:        }
                    413:
1.7       kristaps  414:        PAIR_CLASS_INIT(&tag[0], "sec-head");
1.4       kristaps  415:        print_otag(h, TAG_DIV, 1, tag);
                    416:        return(1);
                    417: }
                    418:
                    419:
                    420: /* ARGSUSED */
                    421: static int
1.8       kristaps  422: man_alt_pre(MAN_ARGS)
                    423: {
                    424:        const struct man_node   *nn;
                    425:        struct tag              *t;
                    426:        int                      i;
1.23      kristaps  427:        enum htmlfont            fp;
1.8       kristaps  428:
                    429:        for (i = 0, nn = n->child; nn; nn = nn->next, i++) {
                    430:                switch (n->tok) {
                    431:                case (MAN_BI):
1.23      kristaps  432:                        fp = i % 2 ? HTMLFONT_ITALIC : HTMLFONT_BOLD;
1.8       kristaps  433:                        break;
                    434:                case (MAN_IB):
1.23      kristaps  435:                        fp = i % 2 ? HTMLFONT_BOLD : HTMLFONT_ITALIC;
1.8       kristaps  436:                        break;
                    437:                case (MAN_RI):
1.23      kristaps  438:                        fp = i % 2 ? HTMLFONT_ITALIC : HTMLFONT_NONE;
1.8       kristaps  439:                        break;
                    440:                case (MAN_IR):
1.23      kristaps  441:                        fp = i % 2 ? HTMLFONT_NONE : HTMLFONT_ITALIC;
1.8       kristaps  442:                        break;
                    443:                case (MAN_BR):
1.23      kristaps  444:                        fp = i % 2 ? HTMLFONT_NONE : HTMLFONT_BOLD;
1.8       kristaps  445:                        break;
                    446:                case (MAN_RB):
1.23      kristaps  447:                        fp = i % 2 ? HTMLFONT_BOLD : HTMLFONT_NONE;
1.8       kristaps  448:                        break;
                    449:                default:
                    450:                        abort();
                    451:                        /* NOTREACHED */
                    452:                }
                    453:
                    454:                if (i)
                    455:                        h->flags |= HTML_NOSPACE;
                    456:
1.24      kristaps  457:                /*
                    458:                 * Open and close the scope with each argument, so that
                    459:                 * internal \f escapes, which are common, are also
                    460:                 * closed out with the scope.
                    461:                 */
1.23      kristaps  462:                t = print_ofont(h, fp);
1.45      kristaps  463:                print_man_node(m, nn, mh, h);
1.21      kristaps  464:                print_tagq(h, t);
1.8       kristaps  465:        }
                    466:
                    467:        return(0);
                    468: }
                    469:
                    470:
                    471: /* ARGSUSED */
                    472: static int
                    473: man_SB_pre(MAN_ARGS)
                    474: {
                    475:        struct htmlpair  tag;
                    476:
1.23      kristaps  477:        /* FIXME: print_ofont(). */
1.8       kristaps  478:        PAIR_CLASS_INIT(&tag, "small bold");
                    479:        print_otag(h, TAG_SPAN, 1, &tag);
                    480:        return(1);
                    481: }
                    482:
                    483:
                    484: /* ARGSUSED */
                    485: static int
                    486: man_SM_pre(MAN_ARGS)
                    487: {
                    488:        struct htmlpair  tag;
                    489:
                    490:        PAIR_CLASS_INIT(&tag, "small");
                    491:        print_otag(h, TAG_SPAN, 1, &tag);
                    492:        return(1);
                    493: }
                    494:
                    495:
                    496: /* ARGSUSED */
                    497: static int
1.4       kristaps  498: man_SS_pre(MAN_ARGS)
                    499: {
                    500:        struct htmlpair  tag[3];
1.7       kristaps  501:        struct roffsu    su;
1.4       kristaps  502:
1.7       kristaps  503:        SCALE_VS_INIT(&su, 1);
1.4       kristaps  504:
                    505:        if (MAN_BODY == n->type) {
1.7       kristaps  506:                PAIR_CLASS_INIT(&tag[0], "ssec-body");
1.4       kristaps  507:                if (n->parent->next && n->child) {
1.7       kristaps  508:                        bufcat_su(h, "margin-bottom", &su);
                    509:                        PAIR_STYLE_INIT(&tag[1], h);
                    510:                        print_otag(h, TAG_DIV, 2, tag);
                    511:                        return(1);
1.4       kristaps  512:                }
                    513:
1.7       kristaps  514:                print_otag(h, TAG_DIV, 1, tag);
1.4       kristaps  515:                return(1);
                    516:        } else if (MAN_BLOCK == n->type) {
1.7       kristaps  517:                PAIR_CLASS_INIT(&tag[0], "ssec-block");
1.4       kristaps  518:                if (n->prev && MAN_SS == n->prev->tok)
                    519:                        if (n->prev->body->child) {
1.7       kristaps  520:                                bufcat_su(h, "margin-top", &su);
                    521:                                PAIR_STYLE_INIT(&tag[1], h);
                    522:                                print_otag(h, TAG_DIV, 2, tag);
                    523:                                return(1);
1.4       kristaps  524:                        }
                    525:
1.7       kristaps  526:                print_otag(h, TAG_DIV, 1, tag);
1.4       kristaps  527:                return(1);
                    528:        }
                    529:
1.7       kristaps  530:        SCALE_HS_INIT(&su, INDENT - HALFINDENT);
                    531:        bufcat_su(h, "margin-left", &su);
                    532:        PAIR_CLASS_INIT(&tag[0], "ssec-head");
                    533:        PAIR_STYLE_INIT(&tag[1], h);
1.4       kristaps  534:        print_otag(h, TAG_DIV, 2, tag);
                    535:        return(1);
                    536: }
                    537:
                    538:
                    539: /* ARGSUSED */
                    540: static int
                    541: man_PP_pre(MAN_ARGS)
                    542: {
1.5       kristaps  543:        struct htmlpair  tag;
1.7       kristaps  544:        struct roffsu    su;
1.5       kristaps  545:        int              i;
1.4       kristaps  546:
1.47      kristaps  547:        if (MAN_BODY == n->type)
1.4       kristaps  548:                return(1);
1.47      kristaps  549:        if (MAN_HEAD == n->type)
                    550:                return(0);
1.4       kristaps  551:
1.5       kristaps  552:        i = 0;
                    553:
1.22      kristaps  554:        if (MAN_ROOT == n->parent->type) {
1.7       kristaps  555:                SCALE_HS_INIT(&su, INDENT);
                    556:                bufcat_su(h, "margin-left", &su);
1.22      kristaps  557:                i = 1;
1.5       kristaps  558:        }
1.22      kristaps  559:        if (n->prev) {
1.7       kristaps  560:                SCALE_VS_INIT(&su, 1);
1.22      kristaps  561:                bufcat_su(h, "margin-top", &su);
                    562:                i = 1;
1.5       kristaps  563:        }
1.4       kristaps  564:
1.7       kristaps  565:        PAIR_STYLE_INIT(&tag, h);
1.22      kristaps  566:        print_otag(h, TAG_DIV, i, &tag);
1.47      kristaps  567:
1.5       kristaps  568:        return(1);
                    569: }
                    570:
                    571:
                    572: /* ARGSUSED */
                    573: static int
                    574: man_IP_pre(MAN_ARGS)
                    575: {
1.7       kristaps  576:        struct roffsu            su;
1.5       kristaps  577:        struct htmlpair          tag;
                    578:        const struct man_node   *nn;
1.7       kristaps  579:        int                      width;
1.5       kristaps  580:
1.7       kristaps  581:        /*
                    582:         * This scattering of 1-BU margins and pads is to make sure that
                    583:         * when text overruns its box, the subsequent text isn't flush
                    584:         * up against it.  However, the rest of the right-hand box must
                    585:         * also be adjusted in consideration of this 1-BU space.
                    586:         */
                    587:
                    588:        if (MAN_BODY == n->type) {
                    589:                SCALE_HS_INIT(&su, INDENT);
                    590:                bufcat_su(h, "margin-left", &su);
                    591:                PAIR_STYLE_INIT(&tag, h);
                    592:                print_otag(h, TAG_DIV, 1, &tag);
1.6       kristaps  593:                return(1);
                    594:        }
                    595:
                    596:        nn = MAN_BLOCK == n->type ?
                    597:                n->head->child : n->parent->head->child;
                    598:
1.7       kristaps  599:        SCALE_HS_INIT(&su, INDENT);
                    600:        width = 0;
1.6       kristaps  601:
1.28      kristaps  602:        /* Width is the last token. */
                    603:
1.7       kristaps  604:        if (MAN_IP == n->tok && NULL != nn)
1.5       kristaps  605:                if (NULL != (nn = nn->next)) {
                    606:                        for ( ; nn->next; nn = nn->next)
                    607:                                /* Do nothing. */ ;
1.7       kristaps  608:                        width = a2width(nn, &su);
1.5       kristaps  609:                }
                    610:
1.28      kristaps  611:        /* Width is the first token. */
                    612:
1.27      kristaps  613:        if (MAN_TP == n->tok && NULL != nn) {
1.28      kristaps  614:                /* Skip past non-text children. */
1.27      kristaps  615:                while (nn && MAN_TEXT != nn->type)
                    616:                        nn = nn->next;
1.28      kristaps  617:                if (nn)
                    618:                        width = a2width(nn, &su);
1.27      kristaps  619:        }
1.7       kristaps  620:
1.5       kristaps  621:        if (MAN_BLOCK == n->type) {
1.7       kristaps  622:                bufcat_su(h, "margin-left", &su);
1.9       kristaps  623:                SCALE_VS_INIT(&su, 1);
                    624:                bufcat_su(h, "margin-top", &su);
1.7       kristaps  625:                bufcat_style(h, "clear", "both");
                    626:                PAIR_STYLE_INIT(&tag, h);
1.5       kristaps  627:                print_otag(h, TAG_DIV, 1, &tag);
                    628:                return(1);
1.6       kristaps  629:        }
                    630:
1.7       kristaps  631:        bufcat_su(h, "min-width", &su);
                    632:        SCALE_INVERT(&su);
                    633:        bufcat_su(h, "margin-left", &su);
                    634:        SCALE_HS_INIT(&su, 1);
                    635:        bufcat_su(h, "margin-right", &su);
                    636:        bufcat_style(h, "clear", "left");
1.6       kristaps  637:
                    638:        if (n->next && n->next->child)
1.7       kristaps  639:                bufcat_style(h, "float", "left");
1.6       kristaps  640:
1.7       kristaps  641:        PAIR_STYLE_INIT(&tag, h);
1.6       kristaps  642:        print_otag(h, TAG_DIV, 1, &tag);
                    643:
1.28      kristaps  644:        /*
                    645:         * Without a length string, we can print all of our children.
                    646:         */
1.7       kristaps  647:
                    648:        if ( ! width)
1.6       kristaps  649:                return(1);
1.27      kristaps  650:
1.28      kristaps  651:        /*
                    652:         * When a length has been specified, we need to carefully print
                    653:         * our child context:  IP gets all children printed but the last
                    654:         * (the width), while TP gets all children printed but the first
                    655:         * (the width).
                    656:         */
1.6       kristaps  657:
1.7       kristaps  658:        if (MAN_IP == n->tok)
                    659:                for (nn = n->child; nn->next; nn = nn->next)
1.45      kristaps  660:                        print_man_node(m, nn, mh, h);
1.7       kristaps  661:        if (MAN_TP == n->tok)
                    662:                for (nn = n->child->next; nn; nn = nn->next)
1.45      kristaps  663:                        print_man_node(m, nn, mh, h);
1.6       kristaps  664:
                    665:        return(0);
                    666: }
                    667:
                    668:
                    669: /* ARGSUSED */
                    670: static int
                    671: man_HP_pre(MAN_ARGS)
                    672: {
                    673:        const struct man_node   *nn;
                    674:        struct htmlpair          tag;
1.7       kristaps  675:        struct roffsu            su;
1.6       kristaps  676:
                    677:        if (MAN_HEAD == n->type)
                    678:                return(0);
                    679:
                    680:        nn = MAN_BLOCK == n->type ?
                    681:                n->head->child : n->parent->head->child;
                    682:
1.7       kristaps  683:        SCALE_HS_INIT(&su, INDENT);
1.6       kristaps  684:
                    685:        if (NULL != nn)
1.7       kristaps  686:                (void)a2width(nn, &su);
1.6       kristaps  687:
                    688:        if (MAN_BLOCK == n->type) {
1.7       kristaps  689:                bufcat_su(h, "margin-left", &su);
1.9       kristaps  690:                SCALE_VS_INIT(&su, 1);
                    691:                bufcat_su(h, "margin-top", &su);
1.7       kristaps  692:                bufcat_style(h, "clear", "both");
                    693:                PAIR_STYLE_INIT(&tag, h);
1.5       kristaps  694:                print_otag(h, TAG_DIV, 1, &tag);
1.6       kristaps  695:                return(1);
                    696:        }
1.5       kristaps  697:
1.7       kristaps  698:        bufcat_su(h, "margin-left", &su);
                    699:        SCALE_INVERT(&su);
                    700:        bufcat_su(h, "text-indent", &su);
1.5       kristaps  701:
1.7       kristaps  702:        PAIR_STYLE_INIT(&tag, h);
1.6       kristaps  703:        print_otag(h, TAG_DIV, 1, &tag);
1.4       kristaps  704:        return(1);
                    705: }
1.6       kristaps  706:
1.8       kristaps  707:
                    708: /* ARGSUSED */
                    709: static int
                    710: man_B_pre(MAN_ARGS)
                    711: {
                    712:
1.23      kristaps  713:        print_ofont(h, HTMLFONT_BOLD);
1.8       kristaps  714:        return(1);
                    715: }
                    716:
                    717:
                    718: /* ARGSUSED */
                    719: static int
                    720: man_I_pre(MAN_ARGS)
                    721: {
1.23      kristaps  722:
                    723:        print_ofont(h, HTMLFONT_ITALIC);
1.8       kristaps  724:        return(1);
1.45      kristaps  725: }
                    726:
                    727:
                    728: /* ARGSUSED */
                    729: static int
                    730: man_literal_pre(MAN_ARGS)
                    731: {
                    732:
1.48      kristaps  733:        if (MAN_nf == n->tok) {
1.45      kristaps  734:                print_otag(h, TAG_BR, 0, NULL);
                    735:                mh->fl |= MANH_LITERAL;
1.48      kristaps  736:        } else
1.45      kristaps  737:                mh->fl &= ~MANH_LITERAL;
                    738:
                    739:        return(1);
                    740: }
                    741:
                    742:
                    743: /* ARGSUSED */
                    744: static int
                    745: man_in_pre(MAN_ARGS)
                    746: {
                    747:
                    748:        print_otag(h, TAG_BR, 0, NULL);
                    749:        return(0);
1.8       kristaps  750: }
                    751:
                    752:
                    753: /* ARGSUSED */
                    754: static int
                    755: man_ign_pre(MAN_ARGS)
                    756: {
                    757:
                    758:        return(0);
                    759: }
1.9       kristaps  760:
                    761:
                    762: /* ARGSUSED */
                    763: static int
                    764: man_RS_pre(MAN_ARGS)
                    765: {
                    766:        struct htmlpair  tag;
                    767:        struct roffsu    su;
                    768:
                    769:        if (MAN_HEAD == n->type)
                    770:                return(0);
                    771:        else if (MAN_BODY == n->type)
                    772:                return(1);
                    773:
                    774:        SCALE_HS_INIT(&su, INDENT);
                    775:        bufcat_su(h, "margin-left", &su);
                    776:
                    777:        if (n->head->child) {
                    778:                SCALE_VS_INIT(&su, 1);
                    779:                a2width(n->head->child, &su);
                    780:                bufcat_su(h, "margin-top", &su);
                    781:        }
                    782:
                    783:        PAIR_STYLE_INIT(&tag, h);
                    784:        print_otag(h, TAG_DIV, 1, &tag);
                    785:        return(1);
                    786: }

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