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