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Annotation of mandoc/man_html.c, Revision 1.37

1.37    ! kristaps    1: /*     $Id: man_html.c,v 1.36 2010/05/26 14:03:54 kristaps Exp $ */
1.1       kristaps    2: /*
1.37    ! kristaps    3:  * Copyright (c) 2008, 2009 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, \
                     43:                          struct html *h
                     44:
                     45: struct htmlman {
                     46:        int             (*pre)(MAN_ARGS);
                     47:        int             (*post)(MAN_ARGS);
                     48: };
                     49:
                     50: static void              print_man(MAN_ARGS);
                     51: static void              print_man_head(MAN_ARGS);
1.4       kristaps   52: static void              print_man_nodelist(MAN_ARGS);
                     53: static void              print_man_node(MAN_ARGS);
1.3       kristaps   54:
1.7       kristaps   55: static int               a2width(const struct man_node *,
                     56:                                struct roffsu *);
1.5       kristaps   57:
1.8       kristaps   58: static int               man_alt_pre(MAN_ARGS);
1.4       kristaps   59: static int               man_br_pre(MAN_ARGS);
1.8       kristaps   60: static int               man_ign_pre(MAN_ARGS);
                     61: static void              man_root_post(MAN_ARGS);
                     62: static int               man_root_pre(MAN_ARGS);
                     63: static int               man_B_pre(MAN_ARGS);
1.6       kristaps   64: static int               man_HP_pre(MAN_ARGS);
1.8       kristaps   65: static int               man_I_pre(MAN_ARGS);
1.5       kristaps   66: static int               man_IP_pre(MAN_ARGS);
1.4       kristaps   67: static int               man_PP_pre(MAN_ARGS);
1.9       kristaps   68: static int               man_RS_pre(MAN_ARGS);
1.8       kristaps   69: static int               man_SB_pre(MAN_ARGS);
1.4       kristaps   70: static int               man_SH_pre(MAN_ARGS);
1.8       kristaps   71: static int               man_SM_pre(MAN_ARGS);
1.4       kristaps   72: static int               man_SS_pre(MAN_ARGS);
                     73:
1.3       kristaps   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 */
1.29      kristaps  107:        { man_br_pre, NULL }, /* Sp */
                    108:        { man_ign_pre, NULL }, /* Vb */
1.30      kristaps  109:        { NULL, NULL }, /* Ve */
1.34      joerg     110:        { man_ign_pre, NULL }, /* AT */
1.3       kristaps  111: };
                    112:
1.1       kristaps  113:
                    114: void
                    115: html_man(void *arg, const struct man *m)
                    116: {
1.3       kristaps  117:        struct html     *h;
                    118:        struct tag      *t;
                    119:
                    120:        h = (struct html *)arg;
                    121:
1.26      kristaps  122:        print_gen_decls(h);
1.3       kristaps  123:
                    124:        t = print_otag(h, TAG_HTML, 0, NULL);
                    125:        print_man(man_meta(m), man_node(m), h);
                    126:        print_tagq(h, t);
                    127:
                    128:        printf("\n");
                    129: }
                    130:
                    131:
                    132: static void
                    133: print_man(MAN_ARGS)
                    134: {
                    135:        struct tag      *t;
                    136:        struct htmlpair  tag;
                    137:
                    138:        t = print_otag(h, TAG_HEAD, 0, NULL);
                    139:
                    140:        print_man_head(m, n, h);
                    141:        print_tagq(h, t);
                    142:        t = print_otag(h, TAG_BODY, 0, NULL);
                    143:
                    144:        tag.key = ATTR_CLASS;
                    145:        tag.val = "body";
                    146:        print_otag(h, TAG_DIV, 1, &tag);
                    147:
1.4       kristaps  148:        print_man_nodelist(m, n, h);
1.3       kristaps  149:
                    150:        print_tagq(h, t);
                    151: }
                    152:
                    153:
                    154: /* ARGSUSED */
                    155: static void
                    156: print_man_head(MAN_ARGS)
                    157: {
                    158:
                    159:        print_gen_head(h);
                    160:        bufinit(h);
1.31      kristaps  161:        buffmt(h, "%s(%s)", m->title, m->msec);
1.3       kristaps  162:
                    163:        print_otag(h, TAG_TITLE, 0, NULL);
                    164:        print_text(h, h->buf);
1.1       kristaps  165: }
1.4       kristaps  166:
                    167:
                    168: static void
                    169: print_man_nodelist(MAN_ARGS)
                    170: {
                    171:
                    172:        print_man_node(m, n, h);
                    173:        if (n->next)
                    174:                print_man_nodelist(m, n->next, h);
                    175: }
                    176:
                    177:
                    178: static void
                    179: print_man_node(MAN_ARGS)
                    180: {
                    181:        int              child;
                    182:        struct tag      *t;
                    183:
                    184:        child = 1;
1.14      kristaps  185:        t = h->tags.head;
1.4       kristaps  186:
                    187:        bufinit(h);
                    188:
1.28      kristaps  189:        /*
                    190:         * FIXME: embedded elements within next-line scopes (e.g., `br'
                    191:         * within an empty `B') will cause formatting to be forgotten
                    192:         * due to scope closing out.
                    193:         */
                    194:
1.4       kristaps  195:        switch (n->type) {
                    196:        case (MAN_ROOT):
                    197:                child = man_root_pre(m, n, h);
                    198:                break;
                    199:        case (MAN_TEXT):
                    200:                print_text(h, n->string);
1.19      kristaps  201:                return;
1.4       kristaps  202:        default:
1.21      kristaps  203:                /*
                    204:                 * Close out scope of font prior to opening a macro
                    205:                 * scope.  Assert that the metafont is on the top of the
                    206:                 * stack (it's never nested).
                    207:                 */
1.20      kristaps  208:                if (h->metaf) {
                    209:                        assert(h->metaf == t);
                    210:                        print_tagq(h, h->metaf);
1.21      kristaps  211:                        assert(NULL == h->metaf);
1.20      kristaps  212:                        t = h->tags.head;
                    213:                }
1.4       kristaps  214:                if (mans[n->tok].pre)
                    215:                        child = (*mans[n->tok].pre)(m, n, h);
                    216:                break;
                    217:        }
                    218:
1.21      kristaps  219:        if (child && n->child)
                    220:                print_man_nodelist(m, n->child, h);
                    221:
1.24      kristaps  222:        /* This will automatically close out any font scope. */
1.4       kristaps  223:        print_stagq(h, t);
                    224:
                    225:        bufinit(h);
                    226:
                    227:        switch (n->type) {
                    228:        case (MAN_ROOT):
                    229:                man_root_post(m, n, h);
                    230:                break;
                    231:        case (MAN_TEXT):
                    232:                break;
                    233:        default:
                    234:                if (mans[n->tok].post)
                    235:                        (*mans[n->tok].post)(m, n, h);
                    236:                break;
                    237:        }
                    238: }
                    239:
                    240:
1.5       kristaps  241: static int
1.7       kristaps  242: a2width(const struct man_node *n, struct roffsu *su)
1.5       kristaps  243: {
                    244:
1.6       kristaps  245:        if (MAN_TEXT != n->type)
1.7       kristaps  246:                return(0);
1.11      kristaps  247:        if (a2roffsu(n->string, su, SCALE_BU))
1.7       kristaps  248:                return(1);
1.5       kristaps  249:
1.7       kristaps  250:        return(0);
1.5       kristaps  251: }
                    252:
                    253:
1.4       kristaps  254: /* ARGSUSED */
                    255: static int
                    256: man_root_pre(MAN_ARGS)
                    257: {
1.15      kristaps  258:        struct htmlpair  tag[3];
1.4       kristaps  259:        struct tag      *t, *tt;
                    260:        char             b[BUFSIZ], title[BUFSIZ];
                    261:
                    262:        b[0] = 0;
                    263:        if (m->vol)
                    264:                (void)strlcat(b, m->vol, BUFSIZ);
                    265:
1.31      kristaps  266:        snprintf(title, BUFSIZ - 1, "%s(%s)", m->title, m->msec);
1.4       kristaps  267:
1.7       kristaps  268:        PAIR_CLASS_INIT(&tag[0], "header");
                    269:        bufcat_style(h, "width", "100%");
                    270:        PAIR_STYLE_INIT(&tag[1], h);
1.15      kristaps  271:        PAIR_SUMMARY_INIT(&tag[2], "header");
                    272:
                    273:        t = print_otag(h, TAG_TABLE, 3, tag);
1.4       kristaps  274:        tt = print_otag(h, TAG_TR, 0, NULL);
                    275:
1.7       kristaps  276:        bufinit(h);
                    277:        bufcat_style(h, "width", "10%");
                    278:        PAIR_STYLE_INIT(&tag[0], h);
1.4       kristaps  279:        print_otag(h, TAG_TD, 1, tag);
                    280:        print_text(h, title);
                    281:        print_stagq(h, tt);
                    282:
1.7       kristaps  283:        bufinit(h);
                    284:        bufcat_style(h, "width", "80%");
                    285:        bufcat_style(h, "white-space", "nowrap");
                    286:        bufcat_style(h, "text-align", "center");
                    287:        PAIR_STYLE_INIT(&tag[0], h);
1.4       kristaps  288:        print_otag(h, TAG_TD, 1, tag);
                    289:        print_text(h, b);
                    290:        print_stagq(h, tt);
                    291:
1.7       kristaps  292:        bufinit(h);
                    293:        bufcat_style(h, "width", "10%");
                    294:        bufcat_style(h, "text-align", "right");
                    295:        PAIR_STYLE_INIT(&tag[0], h);
1.4       kristaps  296:        print_otag(h, TAG_TD, 1, tag);
                    297:        print_text(h, title);
                    298:        print_tagq(h, t);
                    299:        return(1);
                    300: }
                    301:
                    302:
                    303: /* ARGSUSED */
                    304: static void
                    305: man_root_post(MAN_ARGS)
                    306: {
1.15      kristaps  307:        struct htmlpair  tag[3];
1.4       kristaps  308:        struct tag      *t, *tt;
1.12      kristaps  309:        char             b[DATESIZ];
1.4       kristaps  310:
1.36      kristaps  311:        if (m->rawdate)
                    312:                strlcpy(b, m->rawdate, DATESIZ);
                    313:        else
                    314:                time2a(m->date, b, DATESIZ);
1.4       kristaps  315:
1.7       kristaps  316:        PAIR_CLASS_INIT(&tag[0], "footer");
                    317:        bufcat_style(h, "width", "100%");
                    318:        PAIR_STYLE_INIT(&tag[1], h);
1.15      kristaps  319:        PAIR_SUMMARY_INIT(&tag[2], "footer");
                    320:
                    321:        t = print_otag(h, TAG_TABLE, 3, tag);
1.4       kristaps  322:        tt = print_otag(h, TAG_TR, 0, NULL);
                    323:
1.7       kristaps  324:        bufinit(h);
                    325:        bufcat_style(h, "width", "50%");
                    326:        PAIR_STYLE_INIT(&tag[0], h);
1.4       kristaps  327:        print_otag(h, TAG_TD, 1, tag);
                    328:        print_text(h, b);
                    329:        print_stagq(h, tt);
                    330:
1.7       kristaps  331:        bufinit(h);
                    332:        bufcat_style(h, "width", "50%");
                    333:        bufcat_style(h, "text-align", "right");
                    334:        PAIR_STYLE_INIT(&tag[0], h);
1.4       kristaps  335:        print_otag(h, TAG_TD, 1, tag);
                    336:        if (m->source)
                    337:                print_text(h, m->source);
                    338:        print_tagq(h, t);
                    339: }
                    340:
                    341:
                    342:
                    343: /* ARGSUSED */
                    344: static int
                    345: man_br_pre(MAN_ARGS)
                    346: {
1.7       kristaps  347:        struct roffsu    su;
                    348:        struct htmlpair  tag;
1.4       kristaps  349:
1.7       kristaps  350:        SCALE_VS_INIT(&su, 1);
                    351:
1.29      kristaps  352:        switch (n->tok) {
                    353:        case (MAN_Sp):
                    354:                SCALE_VS_INIT(&su, 0.5);
                    355:                break;
                    356:        case (MAN_sp):
                    357:                if (n->child)
                    358:                        a2roffsu(n->child->string, &su, SCALE_VS);
                    359:                break;
                    360:        default:
1.7       kristaps  361:                su.scale = 0;
1.29      kristaps  362:                break;
                    363:        }
1.4       kristaps  364:
1.7       kristaps  365:        bufcat_su(h, "height", &su);
                    366:        PAIR_STYLE_INIT(&tag, h);
1.4       kristaps  367:        print_otag(h, TAG_DIV, 1, &tag);
1.24      kristaps  368:
1.16      kristaps  369:        /* So the div isn't empty: */
                    370:        print_text(h, "\\~");
                    371:
1.7       kristaps  372:        return(0);
1.4       kristaps  373: }
                    374:
                    375:
                    376: /* ARGSUSED */
                    377: static int
                    378: man_SH_pre(MAN_ARGS)
                    379: {
1.7       kristaps  380:        struct htmlpair  tag[2];
                    381:        struct roffsu    su;
1.4       kristaps  382:
                    383:        if (MAN_BODY == n->type) {
1.7       kristaps  384:                SCALE_HS_INIT(&su, INDENT);
                    385:                bufcat_su(h, "margin-left", &su);
                    386:                PAIR_CLASS_INIT(&tag[0], "sec-body");
                    387:                PAIR_STYLE_INIT(&tag[1], h);
1.4       kristaps  388:                print_otag(h, TAG_DIV, 2, tag);
                    389:                return(1);
                    390:        } else if (MAN_BLOCK == n->type) {
1.7       kristaps  391:                PAIR_CLASS_INIT(&tag[0], "sec-block");
1.4       kristaps  392:                if (n->prev && MAN_SH == n->prev->tok)
                    393:                        if (NULL == n->prev->body->child) {
                    394:                                print_otag(h, TAG_DIV, 1, tag);
                    395:                                return(1);
                    396:                        }
                    397:
1.7       kristaps  398:                SCALE_VS_INIT(&su, 1);
                    399:                bufcat_su(h, "margin-top", &su);
1.4       kristaps  400:                if (NULL == n->next)
1.7       kristaps  401:                        bufcat_su(h, "margin-bottom", &su);
                    402:                PAIR_STYLE_INIT(&tag[1], h);
1.4       kristaps  403:                print_otag(h, TAG_DIV, 2, tag);
                    404:                return(1);
                    405:        }
                    406:
1.7       kristaps  407:        PAIR_CLASS_INIT(&tag[0], "sec-head");
1.4       kristaps  408:        print_otag(h, TAG_DIV, 1, tag);
                    409:        return(1);
                    410: }
                    411:
                    412:
                    413: /* ARGSUSED */
                    414: static int
1.8       kristaps  415: man_alt_pre(MAN_ARGS)
                    416: {
                    417:        const struct man_node   *nn;
                    418:        struct tag              *t;
                    419:        int                      i;
1.23      kristaps  420:        enum htmlfont            fp;
1.8       kristaps  421:
                    422:        for (i = 0, nn = n->child; nn; nn = nn->next, i++) {
                    423:                switch (n->tok) {
                    424:                case (MAN_BI):
1.23      kristaps  425:                        fp = i % 2 ? HTMLFONT_ITALIC : HTMLFONT_BOLD;
1.8       kristaps  426:                        break;
                    427:                case (MAN_IB):
1.23      kristaps  428:                        fp = i % 2 ? HTMLFONT_BOLD : HTMLFONT_ITALIC;
1.8       kristaps  429:                        break;
                    430:                case (MAN_RI):
1.23      kristaps  431:                        fp = i % 2 ? HTMLFONT_ITALIC : HTMLFONT_NONE;
1.8       kristaps  432:                        break;
                    433:                case (MAN_IR):
1.23      kristaps  434:                        fp = i % 2 ? HTMLFONT_NONE : HTMLFONT_ITALIC;
1.8       kristaps  435:                        break;
                    436:                case (MAN_BR):
1.23      kristaps  437:                        fp = i % 2 ? HTMLFONT_NONE : HTMLFONT_BOLD;
1.8       kristaps  438:                        break;
                    439:                case (MAN_RB):
1.23      kristaps  440:                        fp = i % 2 ? HTMLFONT_BOLD : HTMLFONT_NONE;
1.8       kristaps  441:                        break;
                    442:                default:
                    443:                        abort();
                    444:                        /* NOTREACHED */
                    445:                }
                    446:
                    447:                if (i)
                    448:                        h->flags |= HTML_NOSPACE;
                    449:
1.24      kristaps  450:                /*
                    451:                 * Open and close the scope with each argument, so that
                    452:                 * internal \f escapes, which are common, are also
                    453:                 * closed out with the scope.
                    454:                 */
1.23      kristaps  455:                t = print_ofont(h, fp);
1.21      kristaps  456:                print_man_node(m, nn, h);
                    457:                print_tagq(h, t);
1.8       kristaps  458:        }
                    459:
                    460:        return(0);
                    461: }
                    462:
                    463:
                    464: /* ARGSUSED */
                    465: static int
                    466: man_SB_pre(MAN_ARGS)
                    467: {
                    468:        struct htmlpair  tag;
                    469:
1.23      kristaps  470:        /* FIXME: print_ofont(). */
1.8       kristaps  471:        PAIR_CLASS_INIT(&tag, "small bold");
                    472:        print_otag(h, TAG_SPAN, 1, &tag);
                    473:        return(1);
                    474: }
                    475:
                    476:
                    477: /* ARGSUSED */
                    478: static int
                    479: man_SM_pre(MAN_ARGS)
                    480: {
                    481:        struct htmlpair  tag;
                    482:
                    483:        PAIR_CLASS_INIT(&tag, "small");
                    484:        print_otag(h, TAG_SPAN, 1, &tag);
                    485:        return(1);
                    486: }
                    487:
                    488:
                    489: /* ARGSUSED */
                    490: static int
1.4       kristaps  491: man_SS_pre(MAN_ARGS)
                    492: {
                    493:        struct htmlpair  tag[3];
1.7       kristaps  494:        struct roffsu    su;
1.4       kristaps  495:
1.7       kristaps  496:        SCALE_VS_INIT(&su, 1);
1.4       kristaps  497:
                    498:        if (MAN_BODY == n->type) {
1.7       kristaps  499:                PAIR_CLASS_INIT(&tag[0], "ssec-body");
1.4       kristaps  500:                if (n->parent->next && n->child) {
1.7       kristaps  501:                        bufcat_su(h, "margin-bottom", &su);
                    502:                        PAIR_STYLE_INIT(&tag[1], h);
                    503:                        print_otag(h, TAG_DIV, 2, tag);
                    504:                        return(1);
1.4       kristaps  505:                }
                    506:
1.7       kristaps  507:                print_otag(h, TAG_DIV, 1, tag);
1.4       kristaps  508:                return(1);
                    509:        } else if (MAN_BLOCK == n->type) {
1.7       kristaps  510:                PAIR_CLASS_INIT(&tag[0], "ssec-block");
1.4       kristaps  511:                if (n->prev && MAN_SS == n->prev->tok)
                    512:                        if (n->prev->body->child) {
1.7       kristaps  513:                                bufcat_su(h, "margin-top", &su);
                    514:                                PAIR_STYLE_INIT(&tag[1], h);
                    515:                                print_otag(h, TAG_DIV, 2, tag);
                    516:                                return(1);
1.4       kristaps  517:                        }
                    518:
1.7       kristaps  519:                print_otag(h, TAG_DIV, 1, tag);
1.4       kristaps  520:                return(1);
                    521:        }
                    522:
1.7       kristaps  523:        SCALE_HS_INIT(&su, INDENT - HALFINDENT);
                    524:        bufcat_su(h, "margin-left", &su);
                    525:        PAIR_CLASS_INIT(&tag[0], "ssec-head");
                    526:        PAIR_STYLE_INIT(&tag[1], h);
1.4       kristaps  527:        print_otag(h, TAG_DIV, 2, tag);
                    528:        return(1);
                    529: }
                    530:
                    531:
                    532: /* ARGSUSED */
                    533: static int
                    534: man_PP_pre(MAN_ARGS)
                    535: {
1.5       kristaps  536:        struct htmlpair  tag;
1.7       kristaps  537:        struct roffsu    su;
1.5       kristaps  538:        int              i;
1.4       kristaps  539:
                    540:        if (MAN_BLOCK != n->type)
                    541:                return(1);
                    542:
1.5       kristaps  543:        i = 0;
                    544:
1.22      kristaps  545:        if (MAN_ROOT == n->parent->type) {
1.7       kristaps  546:                SCALE_HS_INIT(&su, INDENT);
                    547:                bufcat_su(h, "margin-left", &su);
1.22      kristaps  548:                i = 1;
1.5       kristaps  549:        }
1.22      kristaps  550:        if (n->prev) {
1.7       kristaps  551:                SCALE_VS_INIT(&su, 1);
1.22      kristaps  552:                bufcat_su(h, "margin-top", &su);
                    553:                i = 1;
1.5       kristaps  554:        }
1.4       kristaps  555:
1.7       kristaps  556:        PAIR_STYLE_INIT(&tag, h);
1.22      kristaps  557:        print_otag(h, TAG_DIV, i, &tag);
1.5       kristaps  558:        return(1);
                    559: }
                    560:
                    561:
                    562: /* ARGSUSED */
                    563: static int
                    564: man_IP_pre(MAN_ARGS)
                    565: {
1.7       kristaps  566:        struct roffsu            su;
1.5       kristaps  567:        struct htmlpair          tag;
                    568:        const struct man_node   *nn;
1.7       kristaps  569:        int                      width;
1.5       kristaps  570:
1.7       kristaps  571:        /*
                    572:         * This scattering of 1-BU margins and pads is to make sure that
                    573:         * when text overruns its box, the subsequent text isn't flush
                    574:         * up against it.  However, the rest of the right-hand box must
                    575:         * also be adjusted in consideration of this 1-BU space.
                    576:         */
                    577:
                    578:        if (MAN_BODY == n->type) {
                    579:                SCALE_HS_INIT(&su, INDENT);
                    580:                bufcat_su(h, "margin-left", &su);
                    581:                PAIR_STYLE_INIT(&tag, h);
                    582:                print_otag(h, TAG_DIV, 1, &tag);
1.6       kristaps  583:                return(1);
                    584:        }
                    585:
                    586:        nn = MAN_BLOCK == n->type ?
                    587:                n->head->child : n->parent->head->child;
                    588:
1.7       kristaps  589:        SCALE_HS_INIT(&su, INDENT);
                    590:        width = 0;
1.6       kristaps  591:
1.28      kristaps  592:        /* Width is the last token. */
                    593:
1.7       kristaps  594:        if (MAN_IP == n->tok && NULL != nn)
1.5       kristaps  595:                if (NULL != (nn = nn->next)) {
                    596:                        for ( ; nn->next; nn = nn->next)
                    597:                                /* Do nothing. */ ;
1.7       kristaps  598:                        width = a2width(nn, &su);
1.5       kristaps  599:                }
                    600:
1.28      kristaps  601:        /* Width is the first token. */
                    602:
1.27      kristaps  603:        if (MAN_TP == n->tok && NULL != nn) {
1.28      kristaps  604:                /* Skip past non-text children. */
1.27      kristaps  605:                while (nn && MAN_TEXT != nn->type)
                    606:                        nn = nn->next;
1.28      kristaps  607:                if (nn)
                    608:                        width = a2width(nn, &su);
1.27      kristaps  609:        }
1.7       kristaps  610:
1.5       kristaps  611:        if (MAN_BLOCK == n->type) {
1.7       kristaps  612:                bufcat_su(h, "margin-left", &su);
1.9       kristaps  613:                SCALE_VS_INIT(&su, 1);
                    614:                bufcat_su(h, "margin-top", &su);
1.7       kristaps  615:                bufcat_style(h, "clear", "both");
                    616:                PAIR_STYLE_INIT(&tag, h);
1.5       kristaps  617:                print_otag(h, TAG_DIV, 1, &tag);
                    618:                return(1);
1.6       kristaps  619:        }
                    620:
1.7       kristaps  621:        bufcat_su(h, "min-width", &su);
                    622:        SCALE_INVERT(&su);
                    623:        bufcat_su(h, "margin-left", &su);
                    624:        SCALE_HS_INIT(&su, 1);
                    625:        bufcat_su(h, "margin-right", &su);
                    626:        bufcat_style(h, "clear", "left");
1.6       kristaps  627:
                    628:        if (n->next && n->next->child)
1.7       kristaps  629:                bufcat_style(h, "float", "left");
1.6       kristaps  630:
1.7       kristaps  631:        PAIR_STYLE_INIT(&tag, h);
1.6       kristaps  632:        print_otag(h, TAG_DIV, 1, &tag);
                    633:
1.28      kristaps  634:        /*
                    635:         * Without a length string, we can print all of our children.
                    636:         */
1.7       kristaps  637:
                    638:        if ( ! width)
1.6       kristaps  639:                return(1);
1.27      kristaps  640:
1.28      kristaps  641:        /*
                    642:         * When a length has been specified, we need to carefully print
                    643:         * our child context:  IP gets all children printed but the last
                    644:         * (the width), while TP gets all children printed but the first
                    645:         * (the width).
                    646:         */
1.6       kristaps  647:
1.7       kristaps  648:        if (MAN_IP == n->tok)
                    649:                for (nn = n->child; nn->next; nn = nn->next)
                    650:                        print_man_node(m, nn, h);
                    651:        if (MAN_TP == n->tok)
                    652:                for (nn = n->child->next; nn; nn = nn->next)
                    653:                        print_man_node(m, nn, h);
1.6       kristaps  654:
                    655:        return(0);
                    656: }
                    657:
                    658:
                    659: /* ARGSUSED */
                    660: static int
                    661: man_HP_pre(MAN_ARGS)
                    662: {
                    663:        const struct man_node   *nn;
                    664:        struct htmlpair          tag;
1.7       kristaps  665:        struct roffsu            su;
1.6       kristaps  666:
                    667:        if (MAN_HEAD == n->type)
                    668:                return(0);
                    669:
                    670:        nn = MAN_BLOCK == n->type ?
                    671:                n->head->child : n->parent->head->child;
                    672:
1.7       kristaps  673:        SCALE_HS_INIT(&su, INDENT);
1.6       kristaps  674:
                    675:        if (NULL != nn)
1.7       kristaps  676:                (void)a2width(nn, &su);
1.6       kristaps  677:
                    678:        if (MAN_BLOCK == n->type) {
1.7       kristaps  679:                bufcat_su(h, "margin-left", &su);
1.9       kristaps  680:                SCALE_VS_INIT(&su, 1);
                    681:                bufcat_su(h, "margin-top", &su);
1.7       kristaps  682:                bufcat_style(h, "clear", "both");
                    683:                PAIR_STYLE_INIT(&tag, h);
1.5       kristaps  684:                print_otag(h, TAG_DIV, 1, &tag);
1.6       kristaps  685:                return(1);
                    686:        }
1.5       kristaps  687:
1.7       kristaps  688:        bufcat_su(h, "margin-left", &su);
                    689:        SCALE_INVERT(&su);
                    690:        bufcat_su(h, "text-indent", &su);
1.5       kristaps  691:
1.7       kristaps  692:        PAIR_STYLE_INIT(&tag, h);
1.6       kristaps  693:        print_otag(h, TAG_DIV, 1, &tag);
1.4       kristaps  694:        return(1);
                    695: }
1.6       kristaps  696:
1.8       kristaps  697:
                    698: /* ARGSUSED */
                    699: static int
                    700: man_B_pre(MAN_ARGS)
                    701: {
                    702:
1.23      kristaps  703:        print_ofont(h, HTMLFONT_BOLD);
1.8       kristaps  704:        return(1);
                    705: }
                    706:
                    707:
                    708: /* ARGSUSED */
                    709: static int
                    710: man_I_pre(MAN_ARGS)
                    711: {
1.23      kristaps  712:
                    713:        print_ofont(h, HTMLFONT_ITALIC);
1.8       kristaps  714:        return(1);
                    715: }
                    716:
                    717:
                    718: /* ARGSUSED */
                    719: static int
                    720: man_ign_pre(MAN_ARGS)
                    721: {
                    722:
                    723:        return(0);
                    724: }
1.9       kristaps  725:
                    726:
                    727: /* ARGSUSED */
                    728: static int
                    729: man_RS_pre(MAN_ARGS)
                    730: {
                    731:        struct htmlpair  tag;
                    732:        struct roffsu    su;
                    733:
                    734:        if (MAN_HEAD == n->type)
                    735:                return(0);
                    736:        else if (MAN_BODY == n->type)
                    737:                return(1);
                    738:
                    739:        SCALE_HS_INIT(&su, INDENT);
                    740:        bufcat_su(h, "margin-left", &su);
                    741:
                    742:        if (n->head->child) {
                    743:                SCALE_VS_INIT(&su, 1);
                    744:                a2width(n->head->child, &su);
                    745:                bufcat_su(h, "margin-top", &su);
                    746:        }
                    747:
                    748:        PAIR_STYLE_INIT(&tag, h);
                    749:        print_otag(h, TAG_DIV, 1, &tag);
                    750:        return(1);
                    751: }

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