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Annotation of mandoc/man_html.c, Revision 1.24

1.24    ! kristaps    1: /*     $Id: man_html.c,v 1.23 2009/11/16 06:07:49 kristaps Exp $ */
1.1       kristaps    2: /*
                      3:  * Copyright (c) 2008, 2009 Kristaps Dzonsons <kristaps@kth.se>
                      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:  */
                     17: #include <sys/types.h>
                     18:
1.5       kristaps   19: #include <assert.h>
                     20: #include <ctype.h>
1.2       kristaps   21: #include <stdio.h>
1.1       kristaps   22: #include <stdlib.h>
1.4       kristaps   23: #include <string.h>
1.1       kristaps   24:
1.7       kristaps   25: #include "out.h"
1.1       kristaps   26: #include "html.h"
                     27: #include "man.h"
1.10      kristaps   28: #include "main.h"
1.1       kristaps   29:
1.6       kristaps   30: /* TODO: preserve ident widths. */
1.13      kristaps   31: /* FIXME: have PD set the default vspace width. */
1.6       kristaps   32:
                     33: #define        INDENT            5
1.4       kristaps   34: #define        HALFINDENT        3
                     35:
1.3       kristaps   36: #define        MAN_ARGS          const struct man_meta *m, \
                     37:                          const struct man_node *n, \
                     38:                          struct html *h
                     39:
                     40: struct htmlman {
                     41:        int             (*pre)(MAN_ARGS);
                     42:        int             (*post)(MAN_ARGS);
                     43: };
                     44:
                     45: static void              print_man(MAN_ARGS);
                     46: static void              print_man_head(MAN_ARGS);
1.4       kristaps   47: static void              print_man_nodelist(MAN_ARGS);
                     48: static void              print_man_node(MAN_ARGS);
1.3       kristaps   49:
1.7       kristaps   50: static int               a2width(const struct man_node *,
                     51:                                struct roffsu *);
1.5       kristaps   52:
1.8       kristaps   53: static int               man_alt_pre(MAN_ARGS);
1.4       kristaps   54: static int               man_br_pre(MAN_ARGS);
1.8       kristaps   55: static int               man_ign_pre(MAN_ARGS);
                     56: static void              man_root_post(MAN_ARGS);
                     57: static int               man_root_pre(MAN_ARGS);
                     58: static int               man_B_pre(MAN_ARGS);
1.6       kristaps   59: static int               man_HP_pre(MAN_ARGS);
1.8       kristaps   60: static int               man_I_pre(MAN_ARGS);
1.5       kristaps   61: static int               man_IP_pre(MAN_ARGS);
1.4       kristaps   62: static int               man_PP_pre(MAN_ARGS);
1.9       kristaps   63: static int               man_RS_pre(MAN_ARGS);
1.8       kristaps   64: static int               man_SB_pre(MAN_ARGS);
1.4       kristaps   65: static int               man_SH_pre(MAN_ARGS);
1.8       kristaps   66: static int               man_SM_pre(MAN_ARGS);
1.4       kristaps   67: static int               man_SS_pre(MAN_ARGS);
                     68:
                     69: #ifdef __linux__
                     70: extern size_t            strlcpy(char *, const char *, size_t);
                     71: extern size_t            strlcat(char *, const char *, size_t);
                     72: #endif
1.3       kristaps   73:
                     74: static const struct htmlman mans[MAN_MAX] = {
1.4       kristaps   75:        { man_br_pre, NULL }, /* br */
1.3       kristaps   76:        { NULL, NULL }, /* TH */
1.4       kristaps   77:        { man_SH_pre, NULL }, /* SH */
                     78:        { man_SS_pre, NULL }, /* SS */
1.6       kristaps   79:        { man_IP_pre, NULL }, /* TP */
1.4       kristaps   80:        { man_PP_pre, NULL }, /* LP */
                     81:        { man_PP_pre, NULL }, /* PP */
                     82:        { man_PP_pre, NULL }, /* P */
1.5       kristaps   83:        { man_IP_pre, NULL }, /* IP */
1.6       kristaps   84:        { man_HP_pre, NULL }, /* HP */
1.8       kristaps   85:        { man_SM_pre, NULL }, /* SM */
                     86:        { man_SB_pre, NULL }, /* SB */
                     87:        { man_alt_pre, NULL }, /* BI */
                     88:        { man_alt_pre, NULL }, /* IB */
                     89:        { man_alt_pre, NULL }, /* BR */
                     90:        { man_alt_pre, NULL }, /* RB */
1.3       kristaps   91:        { NULL, NULL }, /* R */
1.8       kristaps   92:        { man_B_pre, NULL }, /* B */
                     93:        { man_I_pre, NULL }, /* I */
                     94:        { man_alt_pre, NULL }, /* IR */
                     95:        { man_alt_pre, NULL }, /* RI */
1.3       kristaps   96:        { NULL, NULL }, /* na */
                     97:        { NULL, NULL }, /* i */
1.4       kristaps   98:        { man_br_pre, NULL }, /* sp */
1.3       kristaps   99:        { NULL, NULL }, /* nf */
                    100:        { NULL, NULL }, /* fi */
                    101:        { NULL, NULL }, /* r */
                    102:        { NULL, NULL }, /* RE */
1.9       kristaps  103:        { man_RS_pre, NULL }, /* RS */
1.8       kristaps  104:        { man_ign_pre, NULL }, /* DT */
                    105:        { man_ign_pre, NULL }, /* UC */
1.13      kristaps  106:        { man_ign_pre, NULL }, /* PD */
1.3       kristaps  107: };
                    108:
1.1       kristaps  109:
                    110: void
                    111: html_man(void *arg, const struct man *m)
                    112: {
1.3       kristaps  113:        struct html     *h;
                    114:        struct tag      *t;
                    115:
                    116:        h = (struct html *)arg;
                    117:
                    118:        print_gen_doctype(h);
                    119:
                    120:        t = print_otag(h, TAG_HTML, 0, NULL);
                    121:        print_man(man_meta(m), man_node(m), h);
                    122:        print_tagq(h, t);
                    123:
                    124:        printf("\n");
                    125: }
                    126:
                    127:
                    128: static void
                    129: print_man(MAN_ARGS)
                    130: {
                    131:        struct tag      *t;
                    132:        struct htmlpair  tag;
                    133:
                    134:        t = print_otag(h, TAG_HEAD, 0, NULL);
                    135:
                    136:        print_man_head(m, n, h);
                    137:        print_tagq(h, t);
                    138:        t = print_otag(h, TAG_BODY, 0, NULL);
                    139:
                    140:        tag.key = ATTR_CLASS;
                    141:        tag.val = "body";
                    142:        print_otag(h, TAG_DIV, 1, &tag);
                    143:
1.4       kristaps  144:        print_man_nodelist(m, n, h);
1.3       kristaps  145:
                    146:        print_tagq(h, t);
                    147: }
                    148:
                    149:
                    150: /* ARGSUSED */
                    151: static void
                    152: print_man_head(MAN_ARGS)
                    153: {
                    154:
                    155:        print_gen_head(h);
                    156:        bufinit(h);
                    157:        buffmt(h, "%s(%d)", m->title, m->msec);
                    158:
                    159:        print_otag(h, TAG_TITLE, 0, NULL);
                    160:        print_text(h, h->buf);
1.1       kristaps  161: }
1.4       kristaps  162:
                    163:
                    164: static void
                    165: print_man_nodelist(MAN_ARGS)
                    166: {
                    167:
                    168:        print_man_node(m, n, h);
                    169:        if (n->next)
                    170:                print_man_nodelist(m, n->next, h);
                    171: }
                    172:
                    173:
                    174: static void
                    175: print_man_node(MAN_ARGS)
                    176: {
                    177:        int              child;
                    178:        struct tag      *t;
                    179:
                    180:        child = 1;
1.14      kristaps  181:        t = h->tags.head;
1.4       kristaps  182:
                    183:        bufinit(h);
                    184:
                    185:        switch (n->type) {
                    186:        case (MAN_ROOT):
                    187:                child = man_root_pre(m, n, h);
                    188:                break;
                    189:        case (MAN_TEXT):
                    190:                print_text(h, n->string);
1.19      kristaps  191:                return;
1.4       kristaps  192:        default:
1.21      kristaps  193:                /*
                    194:                 * Close out scope of font prior to opening a macro
                    195:                 * scope.  Assert that the metafont is on the top of the
                    196:                 * stack (it's never nested).
                    197:                 */
1.20      kristaps  198:                if (h->metaf) {
                    199:                        assert(h->metaf == t);
                    200:                        print_tagq(h, h->metaf);
1.21      kristaps  201:                        assert(NULL == h->metaf);
1.20      kristaps  202:                        t = h->tags.head;
                    203:                }
1.4       kristaps  204:                if (mans[n->tok].pre)
                    205:                        child = (*mans[n->tok].pre)(m, n, h);
                    206:                break;
                    207:        }
                    208:
1.21      kristaps  209:        if (child && n->child)
                    210:                print_man_nodelist(m, n->child, h);
                    211:
1.24    ! kristaps  212:        /* This will automatically close out any font scope. */
1.4       kristaps  213:        print_stagq(h, t);
                    214:
                    215:        bufinit(h);
                    216:
                    217:        switch (n->type) {
                    218:        case (MAN_ROOT):
                    219:                man_root_post(m, n, h);
                    220:                break;
                    221:        case (MAN_TEXT):
                    222:                break;
                    223:        default:
                    224:                if (mans[n->tok].post)
                    225:                        (*mans[n->tok].post)(m, n, h);
                    226:                break;
                    227:        }
                    228: }
                    229:
                    230:
1.5       kristaps  231: static int
1.7       kristaps  232: a2width(const struct man_node *n, struct roffsu *su)
1.5       kristaps  233: {
                    234:
1.6       kristaps  235:        if (MAN_TEXT != n->type)
1.7       kristaps  236:                return(0);
1.11      kristaps  237:        if (a2roffsu(n->string, su, SCALE_BU))
1.7       kristaps  238:                return(1);
1.5       kristaps  239:
1.7       kristaps  240:        return(0);
1.5       kristaps  241: }
                    242:
                    243:
1.4       kristaps  244: /* ARGSUSED */
                    245: static int
                    246: man_root_pre(MAN_ARGS)
                    247: {
1.15      kristaps  248:        struct htmlpair  tag[3];
1.4       kristaps  249:        struct tag      *t, *tt;
                    250:        char             b[BUFSIZ], title[BUFSIZ];
                    251:
                    252:        b[0] = 0;
                    253:        if (m->vol)
                    254:                (void)strlcat(b, m->vol, BUFSIZ);
                    255:
1.24    ! kristaps  256:        snprintf(title, BUFSIZ - 1, "%s(%d)", m->title, m->msec);
1.4       kristaps  257:
1.7       kristaps  258:        PAIR_CLASS_INIT(&tag[0], "header");
                    259:        bufcat_style(h, "width", "100%");
                    260:        PAIR_STYLE_INIT(&tag[1], h);
1.15      kristaps  261:        PAIR_SUMMARY_INIT(&tag[2], "header");
                    262:
                    263:        t = print_otag(h, TAG_TABLE, 3, tag);
1.4       kristaps  264:        tt = print_otag(h, TAG_TR, 0, NULL);
                    265:
1.7       kristaps  266:        bufinit(h);
                    267:        bufcat_style(h, "width", "10%");
                    268:        PAIR_STYLE_INIT(&tag[0], h);
1.4       kristaps  269:        print_otag(h, TAG_TD, 1, tag);
                    270:        print_text(h, title);
                    271:        print_stagq(h, tt);
                    272:
1.7       kristaps  273:        bufinit(h);
                    274:        bufcat_style(h, "width", "80%");
                    275:        bufcat_style(h, "white-space", "nowrap");
                    276:        bufcat_style(h, "text-align", "center");
                    277:        PAIR_STYLE_INIT(&tag[0], h);
1.4       kristaps  278:        print_otag(h, TAG_TD, 1, tag);
                    279:        print_text(h, b);
                    280:        print_stagq(h, tt);
                    281:
1.7       kristaps  282:        bufinit(h);
                    283:        bufcat_style(h, "width", "10%");
                    284:        bufcat_style(h, "text-align", "right");
                    285:        PAIR_STYLE_INIT(&tag[0], h);
1.4       kristaps  286:        print_otag(h, TAG_TD, 1, tag);
                    287:        print_text(h, title);
                    288:        print_tagq(h, t);
                    289:        return(1);
                    290: }
                    291:
                    292:
                    293: /* ARGSUSED */
                    294: static void
                    295: man_root_post(MAN_ARGS)
                    296: {
1.15      kristaps  297:        struct htmlpair  tag[3];
1.4       kristaps  298:        struct tag      *t, *tt;
1.12      kristaps  299:        char             b[DATESIZ];
1.4       kristaps  300:
1.12      kristaps  301:        time2a(m->date, b, DATESIZ);
1.4       kristaps  302:
1.7       kristaps  303:        PAIR_CLASS_INIT(&tag[0], "footer");
                    304:        bufcat_style(h, "width", "100%");
                    305:        PAIR_STYLE_INIT(&tag[1], h);
1.15      kristaps  306:        PAIR_SUMMARY_INIT(&tag[2], "footer");
                    307:
                    308:        t = print_otag(h, TAG_TABLE, 3, tag);
1.4       kristaps  309:        tt = print_otag(h, TAG_TR, 0, NULL);
                    310:
1.7       kristaps  311:        bufinit(h);
                    312:        bufcat_style(h, "width", "50%");
                    313:        PAIR_STYLE_INIT(&tag[0], h);
1.4       kristaps  314:        print_otag(h, TAG_TD, 1, tag);
                    315:        print_text(h, b);
                    316:        print_stagq(h, tt);
                    317:
1.7       kristaps  318:        bufinit(h);
                    319:        bufcat_style(h, "width", "50%");
                    320:        bufcat_style(h, "text-align", "right");
                    321:        PAIR_STYLE_INIT(&tag[0], h);
1.4       kristaps  322:        print_otag(h, TAG_TD, 1, tag);
                    323:        if (m->source)
                    324:                print_text(h, m->source);
                    325:        print_tagq(h, t);
                    326: }
                    327:
                    328:
                    329:
                    330: /* ARGSUSED */
                    331: static int
                    332: man_br_pre(MAN_ARGS)
                    333: {
1.7       kristaps  334:        struct roffsu    su;
                    335:        struct htmlpair  tag;
1.4       kristaps  336:
1.7       kristaps  337:        SCALE_VS_INIT(&su, 1);
                    338:
1.11      kristaps  339:        if (MAN_sp == n->tok && n->child)
                    340:                a2roffsu(n->child->string, &su, SCALE_VS);
                    341:        else if (MAN_br == n->tok)
1.7       kristaps  342:                su.scale = 0;
1.4       kristaps  343:
1.7       kristaps  344:        bufcat_su(h, "height", &su);
                    345:        PAIR_STYLE_INIT(&tag, h);
1.4       kristaps  346:        print_otag(h, TAG_DIV, 1, &tag);
1.24    ! kristaps  347:
1.16      kristaps  348:        /* So the div isn't empty: */
                    349:        print_text(h, "\\~");
                    350:
1.7       kristaps  351:        return(0);
1.4       kristaps  352: }
                    353:
                    354:
                    355: /* ARGSUSED */
                    356: static int
                    357: man_SH_pre(MAN_ARGS)
                    358: {
1.7       kristaps  359:        struct htmlpair  tag[2];
                    360:        struct roffsu    su;
1.4       kristaps  361:
                    362:        if (MAN_BODY == n->type) {
1.7       kristaps  363:                SCALE_HS_INIT(&su, INDENT);
                    364:                bufcat_su(h, "margin-left", &su);
                    365:                PAIR_CLASS_INIT(&tag[0], "sec-body");
                    366:                PAIR_STYLE_INIT(&tag[1], h);
1.4       kristaps  367:                print_otag(h, TAG_DIV, 2, tag);
                    368:                return(1);
                    369:        } else if (MAN_BLOCK == n->type) {
1.7       kristaps  370:                PAIR_CLASS_INIT(&tag[0], "sec-block");
1.4       kristaps  371:                if (n->prev && MAN_SH == n->prev->tok)
                    372:                        if (NULL == n->prev->body->child) {
                    373:                                print_otag(h, TAG_DIV, 1, tag);
                    374:                                return(1);
                    375:                        }
                    376:
1.7       kristaps  377:                SCALE_VS_INIT(&su, 1);
                    378:                bufcat_su(h, "margin-top", &su);
1.4       kristaps  379:                if (NULL == n->next)
1.7       kristaps  380:                        bufcat_su(h, "margin-bottom", &su);
                    381:                PAIR_STYLE_INIT(&tag[1], h);
1.4       kristaps  382:                print_otag(h, TAG_DIV, 2, tag);
                    383:                return(1);
                    384:        }
                    385:
1.7       kristaps  386:        PAIR_CLASS_INIT(&tag[0], "sec-head");
1.4       kristaps  387:        print_otag(h, TAG_DIV, 1, tag);
                    388:        return(1);
                    389: }
                    390:
                    391:
                    392: /* ARGSUSED */
                    393: static int
1.8       kristaps  394: man_alt_pre(MAN_ARGS)
                    395: {
                    396:        const struct man_node   *nn;
                    397:        struct tag              *t;
                    398:        int                      i;
1.23      kristaps  399:        enum htmlfont            fp;
1.8       kristaps  400:
                    401:        for (i = 0, nn = n->child; nn; nn = nn->next, i++) {
                    402:                switch (n->tok) {
                    403:                case (MAN_BI):
1.23      kristaps  404:                        fp = i % 2 ? HTMLFONT_ITALIC : HTMLFONT_BOLD;
1.8       kristaps  405:                        break;
                    406:                case (MAN_IB):
1.23      kristaps  407:                        fp = i % 2 ? HTMLFONT_BOLD : HTMLFONT_ITALIC;
1.8       kristaps  408:                        break;
                    409:                case (MAN_RI):
1.23      kristaps  410:                        fp = i % 2 ? HTMLFONT_ITALIC : HTMLFONT_NONE;
1.8       kristaps  411:                        break;
                    412:                case (MAN_IR):
1.23      kristaps  413:                        fp = i % 2 ? HTMLFONT_NONE : HTMLFONT_ITALIC;
1.8       kristaps  414:                        break;
                    415:                case (MAN_BR):
1.23      kristaps  416:                        fp = i % 2 ? HTMLFONT_NONE : HTMLFONT_BOLD;
1.8       kristaps  417:                        break;
                    418:                case (MAN_RB):
1.23      kristaps  419:                        fp = i % 2 ? HTMLFONT_BOLD : HTMLFONT_NONE;
1.8       kristaps  420:                        break;
                    421:                default:
                    422:                        abort();
                    423:                        /* NOTREACHED */
                    424:                }
                    425:
                    426:                if (i)
                    427:                        h->flags |= HTML_NOSPACE;
                    428:
1.24    ! kristaps  429:                /*
        !           430:                 * Open and close the scope with each argument, so that
        !           431:                 * internal \f escapes, which are common, are also
        !           432:                 * closed out with the scope.
        !           433:                 */
1.23      kristaps  434:                t = print_ofont(h, fp);
1.21      kristaps  435:                print_man_node(m, nn, h);
                    436:                print_tagq(h, t);
1.8       kristaps  437:        }
                    438:
                    439:        return(0);
                    440: }
                    441:
                    442:
                    443: /* ARGSUSED */
                    444: static int
                    445: man_SB_pre(MAN_ARGS)
                    446: {
                    447:        struct htmlpair  tag;
                    448:
1.23      kristaps  449:        /* FIXME: print_ofont(). */
1.8       kristaps  450:        PAIR_CLASS_INIT(&tag, "small bold");
                    451:        print_otag(h, TAG_SPAN, 1, &tag);
                    452:        return(1);
                    453: }
                    454:
                    455:
                    456: /* ARGSUSED */
                    457: static int
                    458: man_SM_pre(MAN_ARGS)
                    459: {
                    460:        struct htmlpair  tag;
                    461:
                    462:        PAIR_CLASS_INIT(&tag, "small");
                    463:        print_otag(h, TAG_SPAN, 1, &tag);
                    464:        return(1);
                    465: }
                    466:
                    467:
                    468: /* ARGSUSED */
                    469: static int
1.4       kristaps  470: man_SS_pre(MAN_ARGS)
                    471: {
                    472:        struct htmlpair  tag[3];
1.7       kristaps  473:        struct roffsu    su;
1.4       kristaps  474:
1.7       kristaps  475:        SCALE_VS_INIT(&su, 1);
1.4       kristaps  476:
                    477:        if (MAN_BODY == n->type) {
1.7       kristaps  478:                PAIR_CLASS_INIT(&tag[0], "ssec-body");
1.4       kristaps  479:                if (n->parent->next && n->child) {
1.7       kristaps  480:                        bufcat_su(h, "margin-bottom", &su);
                    481:                        PAIR_STYLE_INIT(&tag[1], h);
                    482:                        print_otag(h, TAG_DIV, 2, tag);
                    483:                        return(1);
1.4       kristaps  484:                }
                    485:
1.7       kristaps  486:                print_otag(h, TAG_DIV, 1, tag);
1.4       kristaps  487:                return(1);
                    488:        } else if (MAN_BLOCK == n->type) {
1.7       kristaps  489:                PAIR_CLASS_INIT(&tag[0], "ssec-block");
1.4       kristaps  490:                if (n->prev && MAN_SS == n->prev->tok)
                    491:                        if (n->prev->body->child) {
1.7       kristaps  492:                                bufcat_su(h, "margin-top", &su);
                    493:                                PAIR_STYLE_INIT(&tag[1], h);
                    494:                                print_otag(h, TAG_DIV, 2, tag);
                    495:                                return(1);
1.4       kristaps  496:                        }
                    497:
1.7       kristaps  498:                print_otag(h, TAG_DIV, 1, tag);
1.4       kristaps  499:                return(1);
                    500:        }
                    501:
1.7       kristaps  502:        SCALE_HS_INIT(&su, INDENT - HALFINDENT);
                    503:        bufcat_su(h, "margin-left", &su);
                    504:        PAIR_CLASS_INIT(&tag[0], "ssec-head");
                    505:        PAIR_STYLE_INIT(&tag[1], h);
1.4       kristaps  506:        print_otag(h, TAG_DIV, 2, tag);
                    507:        return(1);
                    508: }
                    509:
                    510:
                    511: /* ARGSUSED */
                    512: static int
                    513: man_PP_pre(MAN_ARGS)
                    514: {
1.5       kristaps  515:        struct htmlpair  tag;
1.7       kristaps  516:        struct roffsu    su;
1.5       kristaps  517:        int              i;
1.4       kristaps  518:
                    519:        if (MAN_BLOCK != n->type)
                    520:                return(1);
                    521:
1.5       kristaps  522:        i = 0;
                    523:
1.22      kristaps  524:        if (MAN_ROOT == n->parent->type) {
1.7       kristaps  525:                SCALE_HS_INIT(&su, INDENT);
                    526:                bufcat_su(h, "margin-left", &su);
1.22      kristaps  527:                i = 1;
1.5       kristaps  528:        }
1.22      kristaps  529:        if (n->prev) {
1.7       kristaps  530:                SCALE_VS_INIT(&su, 1);
1.22      kristaps  531:                bufcat_su(h, "margin-top", &su);
                    532:                i = 1;
1.5       kristaps  533:        }
1.4       kristaps  534:
1.7       kristaps  535:        PAIR_STYLE_INIT(&tag, h);
1.22      kristaps  536:        print_otag(h, TAG_DIV, i, &tag);
1.5       kristaps  537:        return(1);
                    538: }
                    539:
                    540:
                    541: /* ARGSUSED */
                    542: static int
                    543: man_IP_pre(MAN_ARGS)
                    544: {
1.7       kristaps  545:        struct roffsu            su;
1.5       kristaps  546:        struct htmlpair          tag;
                    547:        const struct man_node   *nn;
1.7       kristaps  548:        int                      width;
1.5       kristaps  549:
1.7       kristaps  550:        /*
                    551:         * This scattering of 1-BU margins and pads is to make sure that
                    552:         * when text overruns its box, the subsequent text isn't flush
                    553:         * up against it.  However, the rest of the right-hand box must
                    554:         * also be adjusted in consideration of this 1-BU space.
                    555:         */
                    556:
                    557:        if (MAN_BODY == n->type) {
                    558:                SCALE_HS_INIT(&su, INDENT);
                    559:                bufcat_su(h, "margin-left", &su);
                    560:                PAIR_STYLE_INIT(&tag, h);
                    561:                print_otag(h, TAG_DIV, 1, &tag);
1.6       kristaps  562:                return(1);
                    563:        }
                    564:
                    565:        nn = MAN_BLOCK == n->type ?
                    566:                n->head->child : n->parent->head->child;
                    567:
1.7       kristaps  568:        SCALE_HS_INIT(&su, INDENT);
                    569:        width = 0;
1.6       kristaps  570:
1.7       kristaps  571:        if (MAN_IP == n->tok && NULL != nn)
1.5       kristaps  572:                if (NULL != (nn = nn->next)) {
                    573:                        for ( ; nn->next; nn = nn->next)
                    574:                                /* Do nothing. */ ;
1.7       kristaps  575:                        width = a2width(nn, &su);
1.5       kristaps  576:                }
                    577:
1.7       kristaps  578:        if (MAN_TP == n->tok && NULL != nn)
                    579:                width = a2width(nn, &su);
                    580:
1.5       kristaps  581:        if (MAN_BLOCK == n->type) {
1.7       kristaps  582:                bufcat_su(h, "margin-left", &su);
1.9       kristaps  583:                SCALE_VS_INIT(&su, 1);
                    584:                bufcat_su(h, "margin-top", &su);
1.7       kristaps  585:                bufcat_style(h, "clear", "both");
                    586:                PAIR_STYLE_INIT(&tag, h);
1.5       kristaps  587:                print_otag(h, TAG_DIV, 1, &tag);
                    588:                return(1);
1.6       kristaps  589:        }
                    590:
1.7       kristaps  591:        bufcat_su(h, "min-width", &su);
                    592:        SCALE_INVERT(&su);
                    593:        bufcat_su(h, "margin-left", &su);
                    594:        SCALE_HS_INIT(&su, 1);
                    595:        bufcat_su(h, "margin-right", &su);
                    596:        bufcat_style(h, "clear", "left");
1.6       kristaps  597:
                    598:        if (n->next && n->next->child)
1.7       kristaps  599:                bufcat_style(h, "float", "left");
1.6       kristaps  600:
1.7       kristaps  601:        PAIR_STYLE_INIT(&tag, h);
1.6       kristaps  602:        print_otag(h, TAG_DIV, 1, &tag);
                    603:
1.7       kristaps  604:        /* With a length string, manually omit the last child. */
                    605:
                    606:        if ( ! width)
1.6       kristaps  607:                return(1);
                    608:
1.7       kristaps  609:        if (MAN_IP == n->tok)
                    610:                for (nn = n->child; nn->next; nn = nn->next)
                    611:                        print_man_node(m, nn, h);
                    612:        if (MAN_TP == n->tok)
                    613:                for (nn = n->child->next; nn; nn = nn->next)
                    614:                        print_man_node(m, nn, h);
1.6       kristaps  615:
                    616:        return(0);
                    617: }
                    618:
                    619:
                    620: /* ARGSUSED */
                    621: static int
                    622: man_HP_pre(MAN_ARGS)
                    623: {
                    624:        const struct man_node   *nn;
                    625:        struct htmlpair          tag;
1.7       kristaps  626:        struct roffsu            su;
1.6       kristaps  627:
                    628:        if (MAN_HEAD == n->type)
                    629:                return(0);
                    630:
                    631:        nn = MAN_BLOCK == n->type ?
                    632:                n->head->child : n->parent->head->child;
                    633:
1.7       kristaps  634:        SCALE_HS_INIT(&su, INDENT);
1.6       kristaps  635:
                    636:        if (NULL != nn)
1.7       kristaps  637:                (void)a2width(nn, &su);
1.6       kristaps  638:
                    639:        if (MAN_BLOCK == n->type) {
1.7       kristaps  640:                bufcat_su(h, "margin-left", &su);
1.9       kristaps  641:                SCALE_VS_INIT(&su, 1);
                    642:                bufcat_su(h, "margin-top", &su);
1.7       kristaps  643:                bufcat_style(h, "clear", "both");
                    644:                PAIR_STYLE_INIT(&tag, h);
1.5       kristaps  645:                print_otag(h, TAG_DIV, 1, &tag);
1.6       kristaps  646:                return(1);
                    647:        }
1.5       kristaps  648:
1.7       kristaps  649:        bufcat_su(h, "margin-left", &su);
                    650:        SCALE_INVERT(&su);
                    651:        bufcat_su(h, "text-indent", &su);
1.5       kristaps  652:
1.7       kristaps  653:        PAIR_STYLE_INIT(&tag, h);
1.6       kristaps  654:        print_otag(h, TAG_DIV, 1, &tag);
1.4       kristaps  655:        return(1);
                    656: }
1.6       kristaps  657:
1.8       kristaps  658:
                    659: /* ARGSUSED */
                    660: static int
                    661: man_B_pre(MAN_ARGS)
                    662: {
                    663:
1.23      kristaps  664:        print_ofont(h, HTMLFONT_BOLD);
1.8       kristaps  665:        return(1);
                    666: }
                    667:
                    668:
                    669: /* ARGSUSED */
                    670: static int
                    671: man_I_pre(MAN_ARGS)
                    672: {
1.23      kristaps  673:
                    674:        print_ofont(h, HTMLFONT_ITALIC);
1.8       kristaps  675:        return(1);
                    676: }
                    677:
                    678:
                    679: /* ARGSUSED */
                    680: static int
                    681: man_ign_pre(MAN_ARGS)
                    682: {
                    683:
                    684:        return(0);
                    685: }
1.9       kristaps  686:
                    687:
                    688: /* ARGSUSED */
                    689: static int
                    690: man_RS_pre(MAN_ARGS)
                    691: {
                    692:        struct htmlpair  tag;
                    693:        struct roffsu    su;
                    694:
                    695:        if (MAN_HEAD == n->type)
                    696:                return(0);
                    697:        else if (MAN_BODY == n->type)
                    698:                return(1);
                    699:
                    700:        SCALE_HS_INIT(&su, INDENT);
                    701:        bufcat_su(h, "margin-left", &su);
                    702:
                    703:        if (n->head->child) {
                    704:                SCALE_VS_INIT(&su, 1);
                    705:                a2width(n->head->child, &su);
                    706:                bufcat_su(h, "margin-top", &su);
                    707:        }
                    708:
                    709:        PAIR_STYLE_INIT(&tag, h);
                    710:        print_otag(h, TAG_DIV, 1, &tag);
                    711:        return(1);
                    712: }

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