752 lines
15 KiB
C
752 lines
15 KiB
C
/* $Id: man_html.c,v 1.37 2010/06/19 20:46:28 kristaps Exp $ */
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/*
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* Copyright (c) 2008, 2009 Kristaps Dzonsons <kristaps@bsd.lv>
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*
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* Permission to use, copy, modify, and distribute this software for any
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* purpose with or without fee is hereby granted, provided that the above
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* copyright notice and this permission notice appear in all copies.
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*
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* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
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* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
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* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
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* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
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* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
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* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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*/
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#ifdef HAVE_CONFIG_H
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#include "config.h"
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#endif
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#include <sys/types.h>
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#include <assert.h>
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#include <ctype.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include "mandoc.h"
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#include "out.h"
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#include "html.h"
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#include "man.h"
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#include "main.h"
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/* TODO: preserve ident widths. */
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/* FIXME: have PD set the default vspace width. */
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#define INDENT 5
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#define HALFINDENT 3
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#define MAN_ARGS const struct man_meta *m, \
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const struct man_node *n, \
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struct html *h
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struct htmlman {
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int (*pre)(MAN_ARGS);
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int (*post)(MAN_ARGS);
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};
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static void print_man(MAN_ARGS);
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static void print_man_head(MAN_ARGS);
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static void print_man_nodelist(MAN_ARGS);
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static void print_man_node(MAN_ARGS);
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static int a2width(const struct man_node *,
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struct roffsu *);
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static int man_alt_pre(MAN_ARGS);
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static int man_br_pre(MAN_ARGS);
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static int man_ign_pre(MAN_ARGS);
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static void man_root_post(MAN_ARGS);
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static int man_root_pre(MAN_ARGS);
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static int man_B_pre(MAN_ARGS);
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static int man_HP_pre(MAN_ARGS);
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static int man_I_pre(MAN_ARGS);
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static int man_IP_pre(MAN_ARGS);
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static int man_PP_pre(MAN_ARGS);
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static int man_RS_pre(MAN_ARGS);
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static int man_SB_pre(MAN_ARGS);
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static int man_SH_pre(MAN_ARGS);
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static int man_SM_pre(MAN_ARGS);
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static int man_SS_pre(MAN_ARGS);
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static const struct htmlman mans[MAN_MAX] = {
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{ man_br_pre, NULL }, /* br */
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{ NULL, NULL }, /* TH */
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{ man_SH_pre, NULL }, /* SH */
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{ man_SS_pre, NULL }, /* SS */
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{ man_IP_pre, NULL }, /* TP */
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{ man_PP_pre, NULL }, /* LP */
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{ man_PP_pre, NULL }, /* PP */
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{ man_PP_pre, NULL }, /* P */
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{ man_IP_pre, NULL }, /* IP */
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{ man_HP_pre, NULL }, /* HP */
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{ man_SM_pre, NULL }, /* SM */
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{ man_SB_pre, NULL }, /* SB */
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{ man_alt_pre, NULL }, /* BI */
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{ man_alt_pre, NULL }, /* IB */
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{ man_alt_pre, NULL }, /* BR */
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{ man_alt_pre, NULL }, /* RB */
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{ NULL, NULL }, /* R */
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{ man_B_pre, NULL }, /* B */
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{ man_I_pre, NULL }, /* I */
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{ man_alt_pre, NULL }, /* IR */
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{ man_alt_pre, NULL }, /* RI */
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{ NULL, NULL }, /* na */
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{ NULL, NULL }, /* i */
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{ man_br_pre, NULL }, /* sp */
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{ NULL, NULL }, /* nf */
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{ NULL, NULL }, /* fi */
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{ NULL, NULL }, /* r */
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{ NULL, NULL }, /* RE */
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{ man_RS_pre, NULL }, /* RS */
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{ man_ign_pre, NULL }, /* DT */
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{ man_ign_pre, NULL }, /* UC */
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{ man_ign_pre, NULL }, /* PD */
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{ man_br_pre, NULL }, /* Sp */
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{ man_ign_pre, NULL }, /* Vb */
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{ NULL, NULL }, /* Ve */
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{ man_ign_pre, NULL }, /* AT */
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};
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void
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html_man(void *arg, const struct man *m)
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{
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struct html *h;
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struct tag *t;
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h = (struct html *)arg;
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print_gen_decls(h);
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t = print_otag(h, TAG_HTML, 0, NULL);
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print_man(man_meta(m), man_node(m), h);
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print_tagq(h, t);
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printf("\n");
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}
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static void
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print_man(MAN_ARGS)
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{
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struct tag *t;
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struct htmlpair tag;
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t = print_otag(h, TAG_HEAD, 0, NULL);
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print_man_head(m, n, h);
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print_tagq(h, t);
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t = print_otag(h, TAG_BODY, 0, NULL);
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tag.key = ATTR_CLASS;
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tag.val = "body";
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print_otag(h, TAG_DIV, 1, &tag);
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print_man_nodelist(m, n, h);
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print_tagq(h, t);
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}
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/* ARGSUSED */
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static void
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print_man_head(MAN_ARGS)
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{
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print_gen_head(h);
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bufinit(h);
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buffmt(h, "%s(%s)", m->title, m->msec);
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print_otag(h, TAG_TITLE, 0, NULL);
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print_text(h, h->buf);
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}
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static void
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print_man_nodelist(MAN_ARGS)
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{
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print_man_node(m, n, h);
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if (n->next)
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print_man_nodelist(m, n->next, h);
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}
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static void
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print_man_node(MAN_ARGS)
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{
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int child;
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struct tag *t;
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child = 1;
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t = h->tags.head;
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bufinit(h);
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/*
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* FIXME: embedded elements within next-line scopes (e.g., `br'
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* within an empty `B') will cause formatting to be forgotten
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* due to scope closing out.
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*/
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switch (n->type) {
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case (MAN_ROOT):
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child = man_root_pre(m, n, h);
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break;
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case (MAN_TEXT):
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print_text(h, n->string);
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return;
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default:
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/*
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* Close out scope of font prior to opening a macro
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* scope. Assert that the metafont is on the top of the
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* stack (it's never nested).
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*/
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if (h->metaf) {
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assert(h->metaf == t);
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print_tagq(h, h->metaf);
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assert(NULL == h->metaf);
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t = h->tags.head;
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}
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if (mans[n->tok].pre)
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child = (*mans[n->tok].pre)(m, n, h);
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break;
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}
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if (child && n->child)
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print_man_nodelist(m, n->child, h);
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/* This will automatically close out any font scope. */
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print_stagq(h, t);
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bufinit(h);
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switch (n->type) {
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case (MAN_ROOT):
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man_root_post(m, n, h);
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break;
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case (MAN_TEXT):
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break;
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default:
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if (mans[n->tok].post)
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(*mans[n->tok].post)(m, n, h);
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break;
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}
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}
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static int
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a2width(const struct man_node *n, struct roffsu *su)
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{
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if (MAN_TEXT != n->type)
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return(0);
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if (a2roffsu(n->string, su, SCALE_BU))
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return(1);
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return(0);
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}
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/* ARGSUSED */
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static int
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man_root_pre(MAN_ARGS)
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{
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struct htmlpair tag[3];
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struct tag *t, *tt;
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char b[BUFSIZ], title[BUFSIZ];
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b[0] = 0;
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if (m->vol)
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(void)strlcat(b, m->vol, BUFSIZ);
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snprintf(title, BUFSIZ - 1, "%s(%s)", m->title, m->msec);
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PAIR_CLASS_INIT(&tag[0], "header");
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bufcat_style(h, "width", "100%");
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PAIR_STYLE_INIT(&tag[1], h);
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PAIR_SUMMARY_INIT(&tag[2], "header");
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t = print_otag(h, TAG_TABLE, 3, tag);
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tt = print_otag(h, TAG_TR, 0, NULL);
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bufinit(h);
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bufcat_style(h, "width", "10%");
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PAIR_STYLE_INIT(&tag[0], h);
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print_otag(h, TAG_TD, 1, tag);
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print_text(h, title);
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print_stagq(h, tt);
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bufinit(h);
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bufcat_style(h, "width", "80%");
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bufcat_style(h, "white-space", "nowrap");
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bufcat_style(h, "text-align", "center");
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PAIR_STYLE_INIT(&tag[0], h);
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print_otag(h, TAG_TD, 1, tag);
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print_text(h, b);
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print_stagq(h, tt);
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bufinit(h);
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bufcat_style(h, "width", "10%");
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bufcat_style(h, "text-align", "right");
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PAIR_STYLE_INIT(&tag[0], h);
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print_otag(h, TAG_TD, 1, tag);
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print_text(h, title);
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print_tagq(h, t);
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return(1);
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}
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/* ARGSUSED */
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static void
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man_root_post(MAN_ARGS)
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{
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struct htmlpair tag[3];
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struct tag *t, *tt;
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char b[DATESIZ];
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if (m->rawdate)
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strlcpy(b, m->rawdate, DATESIZ);
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else
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time2a(m->date, b, DATESIZ);
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PAIR_CLASS_INIT(&tag[0], "footer");
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bufcat_style(h, "width", "100%");
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PAIR_STYLE_INIT(&tag[1], h);
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PAIR_SUMMARY_INIT(&tag[2], "footer");
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t = print_otag(h, TAG_TABLE, 3, tag);
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tt = print_otag(h, TAG_TR, 0, NULL);
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bufinit(h);
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bufcat_style(h, "width", "50%");
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PAIR_STYLE_INIT(&tag[0], h);
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print_otag(h, TAG_TD, 1, tag);
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print_text(h, b);
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print_stagq(h, tt);
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bufinit(h);
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bufcat_style(h, "width", "50%");
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bufcat_style(h, "text-align", "right");
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PAIR_STYLE_INIT(&tag[0], h);
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print_otag(h, TAG_TD, 1, tag);
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if (m->source)
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print_text(h, m->source);
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print_tagq(h, t);
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}
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/* ARGSUSED */
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static int
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man_br_pre(MAN_ARGS)
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{
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struct roffsu su;
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struct htmlpair tag;
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SCALE_VS_INIT(&su, 1);
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switch (n->tok) {
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case (MAN_Sp):
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SCALE_VS_INIT(&su, 0.5);
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break;
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case (MAN_sp):
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if (n->child)
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a2roffsu(n->child->string, &su, SCALE_VS);
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break;
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default:
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su.scale = 0;
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break;
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}
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bufcat_su(h, "height", &su);
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PAIR_STYLE_INIT(&tag, h);
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print_otag(h, TAG_DIV, 1, &tag);
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/* So the div isn't empty: */
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print_text(h, "\\~");
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return(0);
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}
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/* ARGSUSED */
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static int
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man_SH_pre(MAN_ARGS)
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{
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struct htmlpair tag[2];
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struct roffsu su;
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if (MAN_BODY == n->type) {
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SCALE_HS_INIT(&su, INDENT);
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bufcat_su(h, "margin-left", &su);
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PAIR_CLASS_INIT(&tag[0], "sec-body");
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PAIR_STYLE_INIT(&tag[1], h);
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print_otag(h, TAG_DIV, 2, tag);
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return(1);
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} else if (MAN_BLOCK == n->type) {
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PAIR_CLASS_INIT(&tag[0], "sec-block");
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if (n->prev && MAN_SH == n->prev->tok)
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if (NULL == n->prev->body->child) {
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print_otag(h, TAG_DIV, 1, tag);
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return(1);
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}
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SCALE_VS_INIT(&su, 1);
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bufcat_su(h, "margin-top", &su);
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if (NULL == n->next)
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bufcat_su(h, "margin-bottom", &su);
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PAIR_STYLE_INIT(&tag[1], h);
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print_otag(h, TAG_DIV, 2, tag);
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return(1);
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}
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PAIR_CLASS_INIT(&tag[0], "sec-head");
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print_otag(h, TAG_DIV, 1, tag);
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return(1);
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}
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/* ARGSUSED */
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static int
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man_alt_pre(MAN_ARGS)
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{
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const struct man_node *nn;
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struct tag *t;
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int i;
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enum htmlfont fp;
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for (i = 0, nn = n->child; nn; nn = nn->next, i++) {
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switch (n->tok) {
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case (MAN_BI):
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fp = i % 2 ? HTMLFONT_ITALIC : HTMLFONT_BOLD;
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break;
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case (MAN_IB):
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fp = i % 2 ? HTMLFONT_BOLD : HTMLFONT_ITALIC;
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break;
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case (MAN_RI):
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fp = i % 2 ? HTMLFONT_ITALIC : HTMLFONT_NONE;
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break;
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case (MAN_IR):
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fp = i % 2 ? HTMLFONT_NONE : HTMLFONT_ITALIC;
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break;
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case (MAN_BR):
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fp = i % 2 ? HTMLFONT_NONE : HTMLFONT_BOLD;
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break;
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case (MAN_RB):
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fp = i % 2 ? HTMLFONT_BOLD : HTMLFONT_NONE;
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break;
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default:
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abort();
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/* NOTREACHED */
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}
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if (i)
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h->flags |= HTML_NOSPACE;
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/*
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* Open and close the scope with each argument, so that
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* internal \f escapes, which are common, are also
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* closed out with the scope.
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*/
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t = print_ofont(h, fp);
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print_man_node(m, nn, h);
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print_tagq(h, t);
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}
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return(0);
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}
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/* ARGSUSED */
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static int
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man_SB_pre(MAN_ARGS)
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{
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struct htmlpair tag;
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/* FIXME: print_ofont(). */
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PAIR_CLASS_INIT(&tag, "small bold");
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print_otag(h, TAG_SPAN, 1, &tag);
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return(1);
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}
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/* ARGSUSED */
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static int
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man_SM_pre(MAN_ARGS)
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{
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struct htmlpair tag;
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PAIR_CLASS_INIT(&tag, "small");
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print_otag(h, TAG_SPAN, 1, &tag);
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return(1);
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}
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/* ARGSUSED */
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static int
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man_SS_pre(MAN_ARGS)
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{
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struct htmlpair tag[3];
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struct roffsu su;
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SCALE_VS_INIT(&su, 1);
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if (MAN_BODY == n->type) {
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PAIR_CLASS_INIT(&tag[0], "ssec-body");
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if (n->parent->next && n->child) {
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bufcat_su(h, "margin-bottom", &su);
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PAIR_STYLE_INIT(&tag[1], h);
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print_otag(h, TAG_DIV, 2, tag);
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return(1);
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}
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print_otag(h, TAG_DIV, 1, tag);
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return(1);
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} else if (MAN_BLOCK == n->type) {
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PAIR_CLASS_INIT(&tag[0], "ssec-block");
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if (n->prev && MAN_SS == n->prev->tok)
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if (n->prev->body->child) {
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bufcat_su(h, "margin-top", &su);
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PAIR_STYLE_INIT(&tag[1], h);
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print_otag(h, TAG_DIV, 2, tag);
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return(1);
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}
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print_otag(h, TAG_DIV, 1, tag);
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return(1);
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}
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SCALE_HS_INIT(&su, INDENT - HALFINDENT);
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bufcat_su(h, "margin-left", &su);
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PAIR_CLASS_INIT(&tag[0], "ssec-head");
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PAIR_STYLE_INIT(&tag[1], h);
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print_otag(h, TAG_DIV, 2, tag);
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return(1);
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}
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/* ARGSUSED */
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static int
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man_PP_pre(MAN_ARGS)
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{
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struct htmlpair tag;
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struct roffsu su;
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int i;
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if (MAN_BLOCK != n->type)
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return(1);
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i = 0;
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if (MAN_ROOT == n->parent->type) {
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SCALE_HS_INIT(&su, INDENT);
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bufcat_su(h, "margin-left", &su);
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i = 1;
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}
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if (n->prev) {
|
|
SCALE_VS_INIT(&su, 1);
|
|
bufcat_su(h, "margin-top", &su);
|
|
i = 1;
|
|
}
|
|
|
|
PAIR_STYLE_INIT(&tag, h);
|
|
print_otag(h, TAG_DIV, i, &tag);
|
|
return(1);
|
|
}
|
|
|
|
|
|
/* ARGSUSED */
|
|
static int
|
|
man_IP_pre(MAN_ARGS)
|
|
{
|
|
struct roffsu su;
|
|
struct htmlpair tag;
|
|
const struct man_node *nn;
|
|
int width;
|
|
|
|
/*
|
|
* This scattering of 1-BU margins and pads is to make sure that
|
|
* when text overruns its box, the subsequent text isn't flush
|
|
* up against it. However, the rest of the right-hand box must
|
|
* also be adjusted in consideration of this 1-BU space.
|
|
*/
|
|
|
|
if (MAN_BODY == n->type) {
|
|
SCALE_HS_INIT(&su, INDENT);
|
|
bufcat_su(h, "margin-left", &su);
|
|
PAIR_STYLE_INIT(&tag, h);
|
|
print_otag(h, TAG_DIV, 1, &tag);
|
|
return(1);
|
|
}
|
|
|
|
nn = MAN_BLOCK == n->type ?
|
|
n->head->child : n->parent->head->child;
|
|
|
|
SCALE_HS_INIT(&su, INDENT);
|
|
width = 0;
|
|
|
|
/* Width is the last token. */
|
|
|
|
if (MAN_IP == n->tok && NULL != nn)
|
|
if (NULL != (nn = nn->next)) {
|
|
for ( ; nn->next; nn = nn->next)
|
|
/* Do nothing. */ ;
|
|
width = a2width(nn, &su);
|
|
}
|
|
|
|
/* Width is the first token. */
|
|
|
|
if (MAN_TP == n->tok && NULL != nn) {
|
|
/* Skip past non-text children. */
|
|
while (nn && MAN_TEXT != nn->type)
|
|
nn = nn->next;
|
|
if (nn)
|
|
width = a2width(nn, &su);
|
|
}
|
|
|
|
if (MAN_BLOCK == n->type) {
|
|
bufcat_su(h, "margin-left", &su);
|
|
SCALE_VS_INIT(&su, 1);
|
|
bufcat_su(h, "margin-top", &su);
|
|
bufcat_style(h, "clear", "both");
|
|
PAIR_STYLE_INIT(&tag, h);
|
|
print_otag(h, TAG_DIV, 1, &tag);
|
|
return(1);
|
|
}
|
|
|
|
bufcat_su(h, "min-width", &su);
|
|
SCALE_INVERT(&su);
|
|
bufcat_su(h, "margin-left", &su);
|
|
SCALE_HS_INIT(&su, 1);
|
|
bufcat_su(h, "margin-right", &su);
|
|
bufcat_style(h, "clear", "left");
|
|
|
|
if (n->next && n->next->child)
|
|
bufcat_style(h, "float", "left");
|
|
|
|
PAIR_STYLE_INIT(&tag, h);
|
|
print_otag(h, TAG_DIV, 1, &tag);
|
|
|
|
/*
|
|
* Without a length string, we can print all of our children.
|
|
*/
|
|
|
|
if ( ! width)
|
|
return(1);
|
|
|
|
/*
|
|
* When a length has been specified, we need to carefully print
|
|
* our child context: IP gets all children printed but the last
|
|
* (the width), while TP gets all children printed but the first
|
|
* (the width).
|
|
*/
|
|
|
|
if (MAN_IP == n->tok)
|
|
for (nn = n->child; nn->next; nn = nn->next)
|
|
print_man_node(m, nn, h);
|
|
if (MAN_TP == n->tok)
|
|
for (nn = n->child->next; nn; nn = nn->next)
|
|
print_man_node(m, nn, h);
|
|
|
|
return(0);
|
|
}
|
|
|
|
|
|
/* ARGSUSED */
|
|
static int
|
|
man_HP_pre(MAN_ARGS)
|
|
{
|
|
const struct man_node *nn;
|
|
struct htmlpair tag;
|
|
struct roffsu su;
|
|
|
|
if (MAN_HEAD == n->type)
|
|
return(0);
|
|
|
|
nn = MAN_BLOCK == n->type ?
|
|
n->head->child : n->parent->head->child;
|
|
|
|
SCALE_HS_INIT(&su, INDENT);
|
|
|
|
if (NULL != nn)
|
|
(void)a2width(nn, &su);
|
|
|
|
if (MAN_BLOCK == n->type) {
|
|
bufcat_su(h, "margin-left", &su);
|
|
SCALE_VS_INIT(&su, 1);
|
|
bufcat_su(h, "margin-top", &su);
|
|
bufcat_style(h, "clear", "both");
|
|
PAIR_STYLE_INIT(&tag, h);
|
|
print_otag(h, TAG_DIV, 1, &tag);
|
|
return(1);
|
|
}
|
|
|
|
bufcat_su(h, "margin-left", &su);
|
|
SCALE_INVERT(&su);
|
|
bufcat_su(h, "text-indent", &su);
|
|
|
|
PAIR_STYLE_INIT(&tag, h);
|
|
print_otag(h, TAG_DIV, 1, &tag);
|
|
return(1);
|
|
}
|
|
|
|
|
|
/* ARGSUSED */
|
|
static int
|
|
man_B_pre(MAN_ARGS)
|
|
{
|
|
|
|
print_ofont(h, HTMLFONT_BOLD);
|
|
return(1);
|
|
}
|
|
|
|
|
|
/* ARGSUSED */
|
|
static int
|
|
man_I_pre(MAN_ARGS)
|
|
{
|
|
|
|
print_ofont(h, HTMLFONT_ITALIC);
|
|
return(1);
|
|
}
|
|
|
|
|
|
/* ARGSUSED */
|
|
static int
|
|
man_ign_pre(MAN_ARGS)
|
|
{
|
|
|
|
return(0);
|
|
}
|
|
|
|
|
|
/* ARGSUSED */
|
|
static int
|
|
man_RS_pre(MAN_ARGS)
|
|
{
|
|
struct htmlpair tag;
|
|
struct roffsu su;
|
|
|
|
if (MAN_HEAD == n->type)
|
|
return(0);
|
|
else if (MAN_BODY == n->type)
|
|
return(1);
|
|
|
|
SCALE_HS_INIT(&su, INDENT);
|
|
bufcat_su(h, "margin-left", &su);
|
|
|
|
if (n->head->child) {
|
|
SCALE_VS_INIT(&su, 1);
|
|
a2width(n->head->child, &su);
|
|
bufcat_su(h, "margin-top", &su);
|
|
}
|
|
|
|
PAIR_STYLE_INIT(&tag, h);
|
|
print_otag(h, TAG_DIV, 1, &tag);
|
|
return(1);
|
|
}
|