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Annotation of mandoc/man_html.c, Revision 1.34

1.34    ! joerg       1: /*     $Id: man_html.c,v 1.33 2010/05/15 22:44:04 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:  */
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:
1.7       kristaps   29: #include "out.h"
1.1       kristaps   30: #include "html.h"
                     31: #include "man.h"
1.10      kristaps   32: #include "main.h"
1.1       kristaps   33:
1.6       kristaps   34: /* TODO: preserve ident widths. */
1.13      kristaps   35: /* FIXME: have PD set the default vspace width. */
1.6       kristaps   36:
                     37: #define        INDENT            5
1.4       kristaps   38: #define        HALFINDENT        3
                     39:
1.3       kristaps   40: #define        MAN_ARGS          const struct man_meta *m, \
                     41:                          const struct man_node *n, \
                     42:                          struct html *h
                     43:
                     44: struct htmlman {
                     45:        int             (*pre)(MAN_ARGS);
                     46:        int             (*post)(MAN_ARGS);
                     47: };
                     48:
                     49: static void              print_man(MAN_ARGS);
                     50: static void              print_man_head(MAN_ARGS);
1.4       kristaps   51: static void              print_man_nodelist(MAN_ARGS);
                     52: static void              print_man_node(MAN_ARGS);
1.3       kristaps   53:
1.7       kristaps   54: static int               a2width(const struct man_node *,
                     55:                                struct roffsu *);
1.5       kristaps   56:
1.8       kristaps   57: static int               man_alt_pre(MAN_ARGS);
1.4       kristaps   58: static int               man_br_pre(MAN_ARGS);
1.8       kristaps   59: static int               man_ign_pre(MAN_ARGS);
                     60: static void              man_root_post(MAN_ARGS);
                     61: static int               man_root_pre(MAN_ARGS);
                     62: static int               man_B_pre(MAN_ARGS);
1.6       kristaps   63: static int               man_HP_pre(MAN_ARGS);
1.8       kristaps   64: static int               man_I_pre(MAN_ARGS);
1.5       kristaps   65: static int               man_IP_pre(MAN_ARGS);
1.4       kristaps   66: static int               man_PP_pre(MAN_ARGS);
1.9       kristaps   67: static int               man_RS_pre(MAN_ARGS);
1.8       kristaps   68: static int               man_SB_pre(MAN_ARGS);
1.4       kristaps   69: static int               man_SH_pre(MAN_ARGS);
1.8       kristaps   70: static int               man_SM_pre(MAN_ARGS);
1.4       kristaps   71: static int               man_SS_pre(MAN_ARGS);
                     72:
1.3       kristaps   73: static const struct htmlman mans[MAN_MAX] = {
1.4       kristaps   74:        { man_br_pre, NULL }, /* br */
1.3       kristaps   75:        { NULL, NULL }, /* TH */
1.4       kristaps   76:        { man_SH_pre, NULL }, /* SH */
                     77:        { man_SS_pre, NULL }, /* SS */
1.6       kristaps   78:        { man_IP_pre, NULL }, /* TP */
1.4       kristaps   79:        { man_PP_pre, NULL }, /* LP */
                     80:        { man_PP_pre, NULL }, /* PP */
                     81:        { man_PP_pre, NULL }, /* P */
1.5       kristaps   82:        { man_IP_pre, NULL }, /* IP */
1.6       kristaps   83:        { man_HP_pre, NULL }, /* HP */
1.8       kristaps   84:        { man_SM_pre, NULL }, /* SM */
                     85:        { man_SB_pre, NULL }, /* SB */
                     86:        { man_alt_pre, NULL }, /* BI */
                     87:        { man_alt_pre, NULL }, /* IB */
                     88:        { man_alt_pre, NULL }, /* BR */
                     89:        { man_alt_pre, NULL }, /* RB */
1.3       kristaps   90:        { NULL, NULL }, /* R */
1.8       kristaps   91:        { man_B_pre, NULL }, /* B */
                     92:        { man_I_pre, NULL }, /* I */
                     93:        { man_alt_pre, NULL }, /* IR */
                     94:        { man_alt_pre, NULL }, /* RI */
1.3       kristaps   95:        { NULL, NULL }, /* na */
                     96:        { NULL, NULL }, /* i */
1.4       kristaps   97:        { man_br_pre, NULL }, /* sp */
1.3       kristaps   98:        { NULL, NULL }, /* nf */
                     99:        { NULL, NULL }, /* fi */
                    100:        { NULL, NULL }, /* r */
                    101:        { NULL, NULL }, /* RE */
1.9       kristaps  102:        { man_RS_pre, NULL }, /* RS */
1.8       kristaps  103:        { man_ign_pre, NULL }, /* DT */
                    104:        { man_ign_pre, NULL }, /* UC */
1.13      kristaps  105:        { man_ign_pre, NULL }, /* PD */
1.29      kristaps  106:        { man_br_pre, NULL }, /* Sp */
                    107:        { man_ign_pre, NULL }, /* Vb */
1.30      kristaps  108:        { NULL, NULL }, /* Ve */
1.34    ! joerg     109:        { man_ign_pre, NULL }, /* AT */
1.3       kristaps  110: };
                    111:
1.1       kristaps  112:
                    113: void
                    114: html_man(void *arg, const struct man *m)
                    115: {
1.3       kristaps  116:        struct html     *h;
                    117:        struct tag      *t;
                    118:
                    119:        h = (struct html *)arg;
                    120:
1.26      kristaps  121:        print_gen_decls(h);
1.3       kristaps  122:
                    123:        t = print_otag(h, TAG_HTML, 0, NULL);
                    124:        print_man(man_meta(m), man_node(m), h);
                    125:        print_tagq(h, t);
                    126:
                    127:        printf("\n");
                    128: }
                    129:
                    130:
                    131: static void
                    132: print_man(MAN_ARGS)
                    133: {
                    134:        struct tag      *t;
                    135:        struct htmlpair  tag;
                    136:
                    137:        t = print_otag(h, TAG_HEAD, 0, NULL);
                    138:
                    139:        print_man_head(m, n, h);
                    140:        print_tagq(h, t);
                    141:        t = print_otag(h, TAG_BODY, 0, NULL);
                    142:
                    143:        tag.key = ATTR_CLASS;
                    144:        tag.val = "body";
                    145:        print_otag(h, TAG_DIV, 1, &tag);
                    146:
1.4       kristaps  147:        print_man_nodelist(m, n, h);
1.3       kristaps  148:
                    149:        print_tagq(h, t);
                    150: }
                    151:
                    152:
                    153: /* ARGSUSED */
                    154: static void
                    155: print_man_head(MAN_ARGS)
                    156: {
                    157:
                    158:        print_gen_head(h);
                    159:        bufinit(h);
1.31      kristaps  160:        buffmt(h, "%s(%s)", m->title, m->msec);
1.3       kristaps  161:
                    162:        print_otag(h, TAG_TITLE, 0, NULL);
                    163:        print_text(h, h->buf);
1.1       kristaps  164: }
1.4       kristaps  165:
                    166:
                    167: static void
                    168: print_man_nodelist(MAN_ARGS)
                    169: {
                    170:
                    171:        print_man_node(m, n, h);
                    172:        if (n->next)
                    173:                print_man_nodelist(m, n->next, h);
                    174: }
                    175:
                    176:
                    177: static void
                    178: print_man_node(MAN_ARGS)
                    179: {
                    180:        int              child;
                    181:        struct tag      *t;
                    182:
                    183:        child = 1;
1.14      kristaps  184:        t = h->tags.head;
1.4       kristaps  185:
                    186:        bufinit(h);
                    187:
1.28      kristaps  188:        /*
                    189:         * FIXME: embedded elements within next-line scopes (e.g., `br'
                    190:         * within an empty `B') will cause formatting to be forgotten
                    191:         * due to scope closing out.
                    192:         */
                    193:
1.4       kristaps  194:        switch (n->type) {
                    195:        case (MAN_ROOT):
                    196:                child = man_root_pre(m, n, h);
                    197:                break;
                    198:        case (MAN_TEXT):
                    199:                print_text(h, n->string);
1.19      kristaps  200:                return;
1.4       kristaps  201:        default:
1.21      kristaps  202:                /*
                    203:                 * Close out scope of font prior to opening a macro
                    204:                 * scope.  Assert that the metafont is on the top of the
                    205:                 * stack (it's never nested).
                    206:                 */
1.20      kristaps  207:                if (h->metaf) {
                    208:                        assert(h->metaf == t);
                    209:                        print_tagq(h, h->metaf);
1.21      kristaps  210:                        assert(NULL == h->metaf);
1.20      kristaps  211:                        t = h->tags.head;
                    212:                }
1.4       kristaps  213:                if (mans[n->tok].pre)
                    214:                        child = (*mans[n->tok].pre)(m, n, h);
                    215:                break;
                    216:        }
                    217:
1.21      kristaps  218:        if (child && n->child)
                    219:                print_man_nodelist(m, n->child, h);
                    220:
1.24      kristaps  221:        /* This will automatically close out any font scope. */
1.4       kristaps  222:        print_stagq(h, t);
                    223:
                    224:        bufinit(h);
                    225:
                    226:        switch (n->type) {
                    227:        case (MAN_ROOT):
                    228:                man_root_post(m, n, h);
                    229:                break;
                    230:        case (MAN_TEXT):
                    231:                break;
                    232:        default:
                    233:                if (mans[n->tok].post)
                    234:                        (*mans[n->tok].post)(m, n, h);
                    235:                break;
                    236:        }
                    237: }
                    238:
                    239:
1.5       kristaps  240: static int
1.7       kristaps  241: a2width(const struct man_node *n, struct roffsu *su)
1.5       kristaps  242: {
                    243:
1.6       kristaps  244:        if (MAN_TEXT != n->type)
1.7       kristaps  245:                return(0);
1.11      kristaps  246:        if (a2roffsu(n->string, su, SCALE_BU))
1.7       kristaps  247:                return(1);
1.5       kristaps  248:
1.7       kristaps  249:        return(0);
1.5       kristaps  250: }
                    251:
                    252:
1.4       kristaps  253: /* ARGSUSED */
                    254: static int
                    255: man_root_pre(MAN_ARGS)
                    256: {
1.15      kristaps  257:        struct htmlpair  tag[3];
1.4       kristaps  258:        struct tag      *t, *tt;
                    259:        char             b[BUFSIZ], title[BUFSIZ];
                    260:
                    261:        b[0] = 0;
                    262:        if (m->vol)
                    263:                (void)strlcat(b, m->vol, BUFSIZ);
                    264:
1.31      kristaps  265:        snprintf(title, BUFSIZ - 1, "%s(%s)", m->title, m->msec);
1.4       kristaps  266:
1.7       kristaps  267:        PAIR_CLASS_INIT(&tag[0], "header");
                    268:        bufcat_style(h, "width", "100%");
                    269:        PAIR_STYLE_INIT(&tag[1], h);
1.15      kristaps  270:        PAIR_SUMMARY_INIT(&tag[2], "header");
                    271:
                    272:        t = print_otag(h, TAG_TABLE, 3, tag);
1.4       kristaps  273:        tt = print_otag(h, TAG_TR, 0, NULL);
                    274:
1.7       kristaps  275:        bufinit(h);
                    276:        bufcat_style(h, "width", "10%");
                    277:        PAIR_STYLE_INIT(&tag[0], h);
1.4       kristaps  278:        print_otag(h, TAG_TD, 1, tag);
                    279:        print_text(h, title);
                    280:        print_stagq(h, tt);
                    281:
1.7       kristaps  282:        bufinit(h);
                    283:        bufcat_style(h, "width", "80%");
                    284:        bufcat_style(h, "white-space", "nowrap");
                    285:        bufcat_style(h, "text-align", "center");
                    286:        PAIR_STYLE_INIT(&tag[0], h);
1.4       kristaps  287:        print_otag(h, TAG_TD, 1, tag);
                    288:        print_text(h, b);
                    289:        print_stagq(h, tt);
                    290:
1.7       kristaps  291:        bufinit(h);
                    292:        bufcat_style(h, "width", "10%");
                    293:        bufcat_style(h, "text-align", "right");
                    294:        PAIR_STYLE_INIT(&tag[0], h);
1.4       kristaps  295:        print_otag(h, TAG_TD, 1, tag);
                    296:        print_text(h, title);
                    297:        print_tagq(h, t);
                    298:        return(1);
                    299: }
                    300:
                    301:
                    302: /* ARGSUSED */
                    303: static void
                    304: man_root_post(MAN_ARGS)
                    305: {
1.15      kristaps  306:        struct htmlpair  tag[3];
1.4       kristaps  307:        struct tag      *t, *tt;
1.12      kristaps  308:        char             b[DATESIZ];
1.4       kristaps  309:
1.12      kristaps  310:        time2a(m->date, b, DATESIZ);
1.4       kristaps  311:
1.7       kristaps  312:        PAIR_CLASS_INIT(&tag[0], "footer");
                    313:        bufcat_style(h, "width", "100%");
                    314:        PAIR_STYLE_INIT(&tag[1], h);
1.15      kristaps  315:        PAIR_SUMMARY_INIT(&tag[2], "footer");
                    316:
                    317:        t = print_otag(h, TAG_TABLE, 3, tag);
1.4       kristaps  318:        tt = print_otag(h, TAG_TR, 0, NULL);
                    319:
1.7       kristaps  320:        bufinit(h);
                    321:        bufcat_style(h, "width", "50%");
                    322:        PAIR_STYLE_INIT(&tag[0], h);
1.4       kristaps  323:        print_otag(h, TAG_TD, 1, tag);
                    324:        print_text(h, b);
                    325:        print_stagq(h, tt);
                    326:
1.7       kristaps  327:        bufinit(h);
                    328:        bufcat_style(h, "width", "50%");
                    329:        bufcat_style(h, "text-align", "right");
                    330:        PAIR_STYLE_INIT(&tag[0], h);
1.4       kristaps  331:        print_otag(h, TAG_TD, 1, tag);
                    332:        if (m->source)
                    333:                print_text(h, m->source);
                    334:        print_tagq(h, t);
                    335: }
                    336:
                    337:
                    338:
                    339: /* ARGSUSED */
                    340: static int
                    341: man_br_pre(MAN_ARGS)
                    342: {
1.7       kristaps  343:        struct roffsu    su;
                    344:        struct htmlpair  tag;
1.4       kristaps  345:
1.7       kristaps  346:        SCALE_VS_INIT(&su, 1);
                    347:
1.29      kristaps  348:        switch (n->tok) {
                    349:        case (MAN_Sp):
                    350:                SCALE_VS_INIT(&su, 0.5);
                    351:                break;
                    352:        case (MAN_sp):
                    353:                if (n->child)
                    354:                        a2roffsu(n->child->string, &su, SCALE_VS);
                    355:                break;
                    356:        default:
1.7       kristaps  357:                su.scale = 0;
1.29      kristaps  358:                break;
                    359:        }
1.4       kristaps  360:
1.7       kristaps  361:        bufcat_su(h, "height", &su);
                    362:        PAIR_STYLE_INIT(&tag, h);
1.4       kristaps  363:        print_otag(h, TAG_DIV, 1, &tag);
1.24      kristaps  364:
1.16      kristaps  365:        /* So the div isn't empty: */
                    366:        print_text(h, "\\~");
                    367:
1.7       kristaps  368:        return(0);
1.4       kristaps  369: }
                    370:
                    371:
                    372: /* ARGSUSED */
                    373: static int
                    374: man_SH_pre(MAN_ARGS)
                    375: {
1.7       kristaps  376:        struct htmlpair  tag[2];
                    377:        struct roffsu    su;
1.4       kristaps  378:
                    379:        if (MAN_BODY == n->type) {
1.7       kristaps  380:                SCALE_HS_INIT(&su, INDENT);
                    381:                bufcat_su(h, "margin-left", &su);
                    382:                PAIR_CLASS_INIT(&tag[0], "sec-body");
                    383:                PAIR_STYLE_INIT(&tag[1], h);
1.4       kristaps  384:                print_otag(h, TAG_DIV, 2, tag);
                    385:                return(1);
                    386:        } else if (MAN_BLOCK == n->type) {
1.7       kristaps  387:                PAIR_CLASS_INIT(&tag[0], "sec-block");
1.4       kristaps  388:                if (n->prev && MAN_SH == n->prev->tok)
                    389:                        if (NULL == n->prev->body->child) {
                    390:                                print_otag(h, TAG_DIV, 1, tag);
                    391:                                return(1);
                    392:                        }
                    393:
1.7       kristaps  394:                SCALE_VS_INIT(&su, 1);
                    395:                bufcat_su(h, "margin-top", &su);
1.4       kristaps  396:                if (NULL == n->next)
1.7       kristaps  397:                        bufcat_su(h, "margin-bottom", &su);
                    398:                PAIR_STYLE_INIT(&tag[1], h);
1.4       kristaps  399:                print_otag(h, TAG_DIV, 2, tag);
                    400:                return(1);
                    401:        }
                    402:
1.7       kristaps  403:        PAIR_CLASS_INIT(&tag[0], "sec-head");
1.4       kristaps  404:        print_otag(h, TAG_DIV, 1, tag);
                    405:        return(1);
                    406: }
                    407:
                    408:
                    409: /* ARGSUSED */
                    410: static int
1.8       kristaps  411: man_alt_pre(MAN_ARGS)
                    412: {
                    413:        const struct man_node   *nn;
                    414:        struct tag              *t;
                    415:        int                      i;
1.23      kristaps  416:        enum htmlfont            fp;
1.8       kristaps  417:
                    418:        for (i = 0, nn = n->child; nn; nn = nn->next, i++) {
                    419:                switch (n->tok) {
                    420:                case (MAN_BI):
1.23      kristaps  421:                        fp = i % 2 ? HTMLFONT_ITALIC : HTMLFONT_BOLD;
1.8       kristaps  422:                        break;
                    423:                case (MAN_IB):
1.23      kristaps  424:                        fp = i % 2 ? HTMLFONT_BOLD : HTMLFONT_ITALIC;
1.8       kristaps  425:                        break;
                    426:                case (MAN_RI):
1.23      kristaps  427:                        fp = i % 2 ? HTMLFONT_ITALIC : HTMLFONT_NONE;
1.8       kristaps  428:                        break;
                    429:                case (MAN_IR):
1.23      kristaps  430:                        fp = i % 2 ? HTMLFONT_NONE : HTMLFONT_ITALIC;
1.8       kristaps  431:                        break;
                    432:                case (MAN_BR):
1.23      kristaps  433:                        fp = i % 2 ? HTMLFONT_NONE : HTMLFONT_BOLD;
1.8       kristaps  434:                        break;
                    435:                case (MAN_RB):
1.23      kristaps  436:                        fp = i % 2 ? HTMLFONT_BOLD : HTMLFONT_NONE;
1.8       kristaps  437:                        break;
                    438:                default:
                    439:                        abort();
                    440:                        /* NOTREACHED */
                    441:                }
                    442:
                    443:                if (i)
                    444:                        h->flags |= HTML_NOSPACE;
                    445:
1.24      kristaps  446:                /*
                    447:                 * Open and close the scope with each argument, so that
                    448:                 * internal \f escapes, which are common, are also
                    449:                 * closed out with the scope.
                    450:                 */
1.23      kristaps  451:                t = print_ofont(h, fp);
1.21      kristaps  452:                print_man_node(m, nn, h);
                    453:                print_tagq(h, t);
1.8       kristaps  454:        }
                    455:
                    456:        return(0);
                    457: }
                    458:
                    459:
                    460: /* ARGSUSED */
                    461: static int
                    462: man_SB_pre(MAN_ARGS)
                    463: {
                    464:        struct htmlpair  tag;
                    465:
1.23      kristaps  466:        /* FIXME: print_ofont(). */
1.8       kristaps  467:        PAIR_CLASS_INIT(&tag, "small bold");
                    468:        print_otag(h, TAG_SPAN, 1, &tag);
                    469:        return(1);
                    470: }
                    471:
                    472:
                    473: /* ARGSUSED */
                    474: static int
                    475: man_SM_pre(MAN_ARGS)
                    476: {
                    477:        struct htmlpair  tag;
                    478:
                    479:        PAIR_CLASS_INIT(&tag, "small");
                    480:        print_otag(h, TAG_SPAN, 1, &tag);
                    481:        return(1);
                    482: }
                    483:
                    484:
                    485: /* ARGSUSED */
                    486: static int
1.4       kristaps  487: man_SS_pre(MAN_ARGS)
                    488: {
                    489:        struct htmlpair  tag[3];
1.7       kristaps  490:        struct roffsu    su;
1.4       kristaps  491:
1.7       kristaps  492:        SCALE_VS_INIT(&su, 1);
1.4       kristaps  493:
                    494:        if (MAN_BODY == n->type) {
1.7       kristaps  495:                PAIR_CLASS_INIT(&tag[0], "ssec-body");
1.4       kristaps  496:                if (n->parent->next && n->child) {
1.7       kristaps  497:                        bufcat_su(h, "margin-bottom", &su);
                    498:                        PAIR_STYLE_INIT(&tag[1], h);
                    499:                        print_otag(h, TAG_DIV, 2, tag);
                    500:                        return(1);
1.4       kristaps  501:                }
                    502:
1.7       kristaps  503:                print_otag(h, TAG_DIV, 1, tag);
1.4       kristaps  504:                return(1);
                    505:        } else if (MAN_BLOCK == n->type) {
1.7       kristaps  506:                PAIR_CLASS_INIT(&tag[0], "ssec-block");
1.4       kristaps  507:                if (n->prev && MAN_SS == n->prev->tok)
                    508:                        if (n->prev->body->child) {
1.7       kristaps  509:                                bufcat_su(h, "margin-top", &su);
                    510:                                PAIR_STYLE_INIT(&tag[1], h);
                    511:                                print_otag(h, TAG_DIV, 2, tag);
                    512:                                return(1);
1.4       kristaps  513:                        }
                    514:
1.7       kristaps  515:                print_otag(h, TAG_DIV, 1, tag);
1.4       kristaps  516:                return(1);
                    517:        }
                    518:
1.7       kristaps  519:        SCALE_HS_INIT(&su, INDENT - HALFINDENT);
                    520:        bufcat_su(h, "margin-left", &su);
                    521:        PAIR_CLASS_INIT(&tag[0], "ssec-head");
                    522:        PAIR_STYLE_INIT(&tag[1], h);
1.4       kristaps  523:        print_otag(h, TAG_DIV, 2, tag);
                    524:        return(1);
                    525: }
                    526:
                    527:
                    528: /* ARGSUSED */
                    529: static int
                    530: man_PP_pre(MAN_ARGS)
                    531: {
1.5       kristaps  532:        struct htmlpair  tag;
1.7       kristaps  533:        struct roffsu    su;
1.5       kristaps  534:        int              i;
1.4       kristaps  535:
                    536:        if (MAN_BLOCK != n->type)
                    537:                return(1);
                    538:
1.5       kristaps  539:        i = 0;
                    540:
1.22      kristaps  541:        if (MAN_ROOT == n->parent->type) {
1.7       kristaps  542:                SCALE_HS_INIT(&su, INDENT);
                    543:                bufcat_su(h, "margin-left", &su);
1.22      kristaps  544:                i = 1;
1.5       kristaps  545:        }
1.22      kristaps  546:        if (n->prev) {
1.7       kristaps  547:                SCALE_VS_INIT(&su, 1);
1.22      kristaps  548:                bufcat_su(h, "margin-top", &su);
                    549:                i = 1;
1.5       kristaps  550:        }
1.4       kristaps  551:
1.7       kristaps  552:        PAIR_STYLE_INIT(&tag, h);
1.22      kristaps  553:        print_otag(h, TAG_DIV, i, &tag);
1.5       kristaps  554:        return(1);
                    555: }
                    556:
                    557:
                    558: /* ARGSUSED */
                    559: static int
                    560: man_IP_pre(MAN_ARGS)
                    561: {
1.7       kristaps  562:        struct roffsu            su;
1.5       kristaps  563:        struct htmlpair          tag;
                    564:        const struct man_node   *nn;
1.7       kristaps  565:        int                      width;
1.5       kristaps  566:
1.7       kristaps  567:        /*
                    568:         * This scattering of 1-BU margins and pads is to make sure that
                    569:         * when text overruns its box, the subsequent text isn't flush
                    570:         * up against it.  However, the rest of the right-hand box must
                    571:         * also be adjusted in consideration of this 1-BU space.
                    572:         */
                    573:
                    574:        if (MAN_BODY == n->type) {
                    575:                SCALE_HS_INIT(&su, INDENT);
                    576:                bufcat_su(h, "margin-left", &su);
                    577:                PAIR_STYLE_INIT(&tag, h);
                    578:                print_otag(h, TAG_DIV, 1, &tag);
1.6       kristaps  579:                return(1);
                    580:        }
                    581:
                    582:        nn = MAN_BLOCK == n->type ?
                    583:                n->head->child : n->parent->head->child;
                    584:
1.7       kristaps  585:        SCALE_HS_INIT(&su, INDENT);
                    586:        width = 0;
1.6       kristaps  587:
1.28      kristaps  588:        /* Width is the last token. */
                    589:
1.7       kristaps  590:        if (MAN_IP == n->tok && NULL != nn)
1.5       kristaps  591:                if (NULL != (nn = nn->next)) {
                    592:                        for ( ; nn->next; nn = nn->next)
                    593:                                /* Do nothing. */ ;
1.7       kristaps  594:                        width = a2width(nn, &su);
1.5       kristaps  595:                }
                    596:
1.28      kristaps  597:        /* Width is the first token. */
                    598:
1.27      kristaps  599:        if (MAN_TP == n->tok && NULL != nn) {
1.28      kristaps  600:                /* Skip past non-text children. */
1.27      kristaps  601:                while (nn && MAN_TEXT != nn->type)
                    602:                        nn = nn->next;
1.28      kristaps  603:                if (nn)
                    604:                        width = a2width(nn, &su);
1.27      kristaps  605:        }
1.7       kristaps  606:
1.5       kristaps  607:        if (MAN_BLOCK == n->type) {
1.7       kristaps  608:                bufcat_su(h, "margin-left", &su);
1.9       kristaps  609:                SCALE_VS_INIT(&su, 1);
                    610:                bufcat_su(h, "margin-top", &su);
1.7       kristaps  611:                bufcat_style(h, "clear", "both");
                    612:                PAIR_STYLE_INIT(&tag, h);
1.5       kristaps  613:                print_otag(h, TAG_DIV, 1, &tag);
                    614:                return(1);
1.6       kristaps  615:        }
                    616:
1.7       kristaps  617:        bufcat_su(h, "min-width", &su);
                    618:        SCALE_INVERT(&su);
                    619:        bufcat_su(h, "margin-left", &su);
                    620:        SCALE_HS_INIT(&su, 1);
                    621:        bufcat_su(h, "margin-right", &su);
                    622:        bufcat_style(h, "clear", "left");
1.6       kristaps  623:
                    624:        if (n->next && n->next->child)
1.7       kristaps  625:                bufcat_style(h, "float", "left");
1.6       kristaps  626:
1.7       kristaps  627:        PAIR_STYLE_INIT(&tag, h);
1.6       kristaps  628:        print_otag(h, TAG_DIV, 1, &tag);
                    629:
1.28      kristaps  630:        /*
                    631:         * Without a length string, we can print all of our children.
                    632:         */
1.7       kristaps  633:
                    634:        if ( ! width)
1.6       kristaps  635:                return(1);
1.27      kristaps  636:
1.28      kristaps  637:        /*
                    638:         * When a length has been specified, we need to carefully print
                    639:         * our child context:  IP gets all children printed but the last
                    640:         * (the width), while TP gets all children printed but the first
                    641:         * (the width).
                    642:         */
1.6       kristaps  643:
1.7       kristaps  644:        if (MAN_IP == n->tok)
                    645:                for (nn = n->child; nn->next; nn = nn->next)
                    646:                        print_man_node(m, nn, h);
                    647:        if (MAN_TP == n->tok)
                    648:                for (nn = n->child->next; nn; nn = nn->next)
                    649:                        print_man_node(m, nn, h);
1.6       kristaps  650:
                    651:        return(0);
                    652: }
                    653:
                    654:
                    655: /* ARGSUSED */
                    656: static int
                    657: man_HP_pre(MAN_ARGS)
                    658: {
                    659:        const struct man_node   *nn;
                    660:        struct htmlpair          tag;
1.7       kristaps  661:        struct roffsu            su;
1.6       kristaps  662:
                    663:        if (MAN_HEAD == n->type)
                    664:                return(0);
                    665:
                    666:        nn = MAN_BLOCK == n->type ?
                    667:                n->head->child : n->parent->head->child;
                    668:
1.7       kristaps  669:        SCALE_HS_INIT(&su, INDENT);
1.6       kristaps  670:
                    671:        if (NULL != nn)
1.7       kristaps  672:                (void)a2width(nn, &su);
1.6       kristaps  673:
                    674:        if (MAN_BLOCK == n->type) {
1.7       kristaps  675:                bufcat_su(h, "margin-left", &su);
1.9       kristaps  676:                SCALE_VS_INIT(&su, 1);
                    677:                bufcat_su(h, "margin-top", &su);
1.7       kristaps  678:                bufcat_style(h, "clear", "both");
                    679:                PAIR_STYLE_INIT(&tag, h);
1.5       kristaps  680:                print_otag(h, TAG_DIV, 1, &tag);
1.6       kristaps  681:                return(1);
                    682:        }
1.5       kristaps  683:
1.7       kristaps  684:        bufcat_su(h, "margin-left", &su);
                    685:        SCALE_INVERT(&su);
                    686:        bufcat_su(h, "text-indent", &su);
1.5       kristaps  687:
1.7       kristaps  688:        PAIR_STYLE_INIT(&tag, h);
1.6       kristaps  689:        print_otag(h, TAG_DIV, 1, &tag);
1.4       kristaps  690:        return(1);
                    691: }
1.6       kristaps  692:
1.8       kristaps  693:
                    694: /* ARGSUSED */
                    695: static int
                    696: man_B_pre(MAN_ARGS)
                    697: {
                    698:
1.23      kristaps  699:        print_ofont(h, HTMLFONT_BOLD);
1.8       kristaps  700:        return(1);
                    701: }
                    702:
                    703:
                    704: /* ARGSUSED */
                    705: static int
                    706: man_I_pre(MAN_ARGS)
                    707: {
1.23      kristaps  708:
                    709:        print_ofont(h, HTMLFONT_ITALIC);
1.8       kristaps  710:        return(1);
                    711: }
                    712:
                    713:
                    714: /* ARGSUSED */
                    715: static int
                    716: man_ign_pre(MAN_ARGS)
                    717: {
                    718:
                    719:        return(0);
                    720: }
1.9       kristaps  721:
                    722:
                    723: /* ARGSUSED */
                    724: static int
                    725: man_RS_pre(MAN_ARGS)
                    726: {
                    727:        struct htmlpair  tag;
                    728:        struct roffsu    su;
                    729:
                    730:        if (MAN_HEAD == n->type)
                    731:                return(0);
                    732:        else if (MAN_BODY == n->type)
                    733:                return(1);
                    734:
                    735:        SCALE_HS_INIT(&su, INDENT);
                    736:        bufcat_su(h, "margin-left", &su);
                    737:
                    738:        if (n->head->child) {
                    739:                SCALE_VS_INIT(&su, 1);
                    740:                a2width(n->head->child, &su);
                    741:                bufcat_su(h, "margin-top", &su);
                    742:        }
                    743:
                    744:        PAIR_STYLE_INIT(&tag, h);
                    745:        print_otag(h, TAG_DIV, 1, &tag);
                    746:        return(1);
                    747: }

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