/* $Id$ */
/*
* Copyright (c) 2008 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.
*/
#include <sys/param.h>
#include <sys/stat.h>
#include <assert.h>
#include <err.h>
#include <fcntl.h>
#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include <unistd.h>
#include "libmdocml.h"
#include "private.h"
#include "ml.h"
/* TODO: allow head/tail-less invocations (just "div" start). */
/* FIXME: free htmlq. */
struct htmlnode {
int tok;
enum md_ns ns;
int *argc[ROFF_MAXLINEARG];
char *argv[ROFF_MAXLINEARG];
struct htmlnode *parent;
};
struct htmlq {
struct htmlnode *last;
};
static void htmlnode_free(struct htmlnode *);
static void htmlnode_free(struct htmlnode *);
static int html_loadcss(struct md_mbuf *, const char *);
static ssize_t html_endtag(struct md_mbuf *, void *,
const struct md_args *,
enum md_ns, int);
static ssize_t html_begintag(struct md_mbuf *, void *,
const struct md_args *,
enum md_ns, int,
const int *, const char **);
static int html_begin(struct md_mbuf *,
const struct md_args *,
const struct tm *,
const char *, const char *,
const char *, const char *);
static int html_printargs(struct md_mbuf *, int,
const char *, const int *,
const char **, size_t *);
static int html_end(struct md_mbuf *,
const struct md_args *);
static int html_blocktagname(struct md_mbuf *,
const struct md_args *, int, size_t *);
static int html_blocktagargs(struct md_mbuf *,
const struct md_args *, int,
const int *, const char **, size_t *);
static int html_blockheadtagname(struct md_mbuf *,
const struct md_args *, int, size_t *);
static int html_blockheadtagargs(struct md_mbuf *,
const struct md_args *, int,
const int *, const char **, size_t *);
static int html_blockbodytagname(struct md_mbuf *,
const struct md_args *, int, size_t *);
static int html_blockbodytagargs(struct md_mbuf *,
const struct md_args *, int,
const int *, const char **, size_t *);
static int html_inlinetagname(struct md_mbuf *,
const struct md_args *, int, size_t *);
static int html_inlinetagargs(struct md_mbuf *,
const struct md_args *, int,
const int *, const char **, size_t *);
static int
html_loadcss(struct md_mbuf *mbuf, const char *css)
{
size_t res, bufsz;
char *buf;
struct stat st;
int fd, c;
ssize_t ssz;
c = 0;
res = 0;
buf = NULL;
if (-1 == (fd = open(css, O_RDONLY, 0))) {
warn("%s", css);
return(0);
}
if (-1 == fstat(fd, &st)) {
warn("%s", css);
goto out;
}
bufsz = MAX(st.st_blksize, BUFSIZ);
if (NULL == (buf = malloc(bufsz))) {
warn("malloc");
goto out;
}
for (;;) {
if (-1 == (ssz = read(fd, buf, bufsz))) {
warn("%s", css);
goto out;
} else if (0 == ssz)
break;
if ( ! ml_nputs(mbuf, buf, (size_t)ssz, &res))
goto out;
}
c = 1;
out:
if (-1 == close(fd)) {
warn("%s", css);
c = 0;
}
if (buf)
free(buf);
return(c);
}
/* ARGSUSED */
static int
html_begin(struct md_mbuf *mbuf, const struct md_args *args,
const struct tm *tm, const char *os,
const char *title, const char *section,
const char *vol)
{
const char *preamble, *css, *trail;
char buf[512];
size_t res;
preamble =
"<!DOCTYPE HTML PUBLIC \"-//W3C//DTD HTML 4.01//EN\"\n"
" \"http://www.w3.org/TR/html4/strict.dtd\">\n"
"<html>\n"
"<head>\n"
" <meta http-equiv=\"Content-Type\"\n"
" content=\"text/html;charset=utf-8\">\n"
" <meta name=\"resource-type\" content=\"document\">\n"
" <title>Manual Page for %s(%s)</title>\n";
css =
" <link rel=\"stylesheet\" type=\"text/css\"\n"
" href=\"%s\">\n";
trail =
"</head>\n"
"<body>\n"
"<div class=\"mdoc\">\n";
res = 0;
(void)snprintf(buf, sizeof(buf) - 1,
preamble, title, section);
if ( ! ml_puts(mbuf, buf, &res))
return(0);
assert(args->params.html.css);
if (HTML_CSS_EMBED & args->params.html.flags) {
if ( ! ml_puts(mbuf, " <style type=\"text/css\"><!--\n", &res))
return(0);
if ( ! html_loadcss(mbuf, args->params.html.css))
return(0);
if ( ! ml_puts(mbuf, " --!></style>\n", &res))
return(0);
} else {
(void)snprintf(buf, sizeof(buf) - 1, css,
args->params.html.css);
if ( ! ml_puts(mbuf, buf, &res))
return(0);
}
if ( ! ml_puts(mbuf, trail, &res))
return(0);
return(1);
}
/* ARGSUSED */
static int
html_end(struct md_mbuf *mbuf, const struct md_args *args)
{
size_t res;
res = 0;
if ( ! ml_puts(mbuf, "</div></body>\n</html>", &res))
return(0);
return(1);
}
/* ARGSUSED */
static int
html_blockbodytagname(struct md_mbuf *mbuf,
const struct md_args *args, int tok, size_t *res)
{
return(ml_puts(mbuf, "div", res));
}
/* ARGSUSED */
static int
html_blockheadtagname(struct md_mbuf *mbuf,
const struct md_args *args, int tok, size_t *res)
{
return(ml_puts(mbuf, "div", res));
}
/* ARGSUSED */
static int
html_blocktagname(struct md_mbuf *mbuf,
const struct md_args *args, int tok, size_t *res)
{
return(ml_puts(mbuf, "div", res));
}
static int
html_printargs(struct md_mbuf *mbuf, int tok, const char *ns,
const int *argc, const char **argv, size_t *res)
{
int i, c;
if ( ! ml_puts(mbuf, " class=\"", res))
return(0);
if ( ! ml_puts(mbuf, ns, res))
return(0);
if ( ! ml_puts(mbuf, "-", res))
return(0);
if ( ! ml_puts(mbuf, toknames[tok], res))
return(0);
if ( ! ml_puts(mbuf, "\"", res))
return(0);
if (NULL == argv || NULL == argc)
return(1);
assert(argv && argc);
/* FIXME: ignores values. */
for (i = 0; ROFF_ARGMAX != (c = argc[i]); i++) {
if (argv[i])
continue;
if ( ! ml_puts(mbuf, " class=\"", res))
return(0);
if ( ! ml_puts(mbuf, ns, res))
return(0);
if ( ! ml_puts(mbuf, "-", res))
return(0);
if ( ! ml_puts(mbuf, toknames[tok], res))
return(0);
if ( ! ml_puts(mbuf, "-", res))
return(0);
if ( ! ml_puts(mbuf, tokargnames[c], res))
return(0);
if ( ! ml_puts(mbuf, "\"", res))
return(0);
}
return(1);
}
/* ARGSUSED */
static int
html_blockheadtagargs(struct md_mbuf *mbuf,
const struct md_args *args, int tok,
const int *argc, const char **argv, size_t *res)
{
return(html_printargs(mbuf, tok, "head", argc, argv, res));
}
/* ARGSUSED */
static int
html_blockbodytagargs(struct md_mbuf *mbuf,
const struct md_args *args, int tok,
const int *argc, const char **argv, size_t *res)
{
return(html_printargs(mbuf, tok, "body", argc, argv, res));
}
/* ARGSUSED */
static int
html_blocktagargs(struct md_mbuf *mbuf,
const struct md_args *args, int tok,
const int *argc, const char **argv, size_t *res)
{
return(html_printargs(mbuf, tok, "block", argc, argv, res));
}
/* ARGSUSED */
static int
html_inlinetagargs(struct md_mbuf *mbuf,
const struct md_args *args, int tok,
const int *argc, const char **argv, size_t *res)
{
return(html_printargs(mbuf, tok, "inline", argc, argv, res));
}
/* ARGSUSED */
static int
html_inlinetagname(struct md_mbuf *mbuf,
const struct md_args *args, int tok, size_t *res)
{
switch (tok) {
case (ROFF_Pp):
return(ml_puts(mbuf, "div", res));
default:
return(ml_puts(mbuf, "span", res));
}
return(1);
}
static ssize_t
html_begintag(struct md_mbuf *mbuf, void *data,
const struct md_args *args, enum md_ns ns,
int tok, const int *argc, const char **argv)
{
size_t res;
struct htmlq *q;
struct htmlnode *node;
assert(ns != MD_NS_DEFAULT);
res = 0;
assert(data);
q = (struct htmlq *)data;
if (NULL == (node = calloc(1, sizeof(struct htmlnode)))) {
warn("calloc");
return(-1);
}
node->parent = q->last;
node->tok = tok;
node->ns = ns;
q->last = node;
switch (ns) {
case (MD_NS_BLOCK):
if ( ! html_blocktagname(mbuf, args, tok, &res))
return(-1);
if ( ! html_blocktagargs(mbuf, args, tok,
argc, argv, &res))
return(-1);
break;
case (MD_NS_BODY):
if ( ! html_blockbodytagname(mbuf, args, tok, &res))
return(-1);
if ( ! html_blockbodytagargs(mbuf, args, tok,
argc, argv, &res))
return(-1);
break;
case (MD_NS_HEAD):
if ( ! html_blockheadtagname(mbuf, args, tok, &res))
return(-1);
if ( ! html_blockheadtagargs(mbuf, args, tok,
argc, argv, &res))
return(-1);
break;
default:
if ( ! html_inlinetagname(mbuf, args, tok, &res))
return(-1);
if ( ! html_inlinetagargs(mbuf, args, tok,
argc, argv, &res))
return(-1);
break;
}
return((ssize_t)res);
}
static ssize_t
html_endtag(struct md_mbuf *mbuf, void *data,
const struct md_args *args, enum md_ns ns, int tok)
{
size_t res;
struct htmlq *q;
struct htmlnode *node;
assert(ns != MD_NS_DEFAULT);
res = 0;
assert(data);
q = (struct htmlq *)data;
switch (ns) {
case (MD_NS_BLOCK):
if ( ! html_blocktagname(mbuf, args, tok, &res))
return(-1);
break;
case (MD_NS_BODY):
if ( ! html_blockbodytagname(mbuf, args, tok, &res))
return(-1);
break;
case (MD_NS_HEAD):
if ( ! html_blockheadtagname(mbuf, args, tok, &res))
return(-1);
break;
default:
if ( ! html_inlinetagname(mbuf, args, tok, &res))
return(-1);
break;
}
node = q->last;
q->last = node->parent;
htmlnode_free(node);
return((ssize_t)res);
}
int
md_line_html(void *data, char *buf)
{
return(mlg_line((struct md_mlg *)data, buf));
}
int
md_exit_html(void *data, int flush)
{
return(mlg_exit((struct md_mlg *)data, flush));
}
void *
md_init_html(const struct md_args *args,
struct md_mbuf *mbuf, const struct md_rbuf *rbuf)
{
struct htmlq *q;
if (NULL == (q = calloc(1, sizeof(struct htmlq)))) {
warn("calloc");
return(NULL);
}
return(mlg_alloc(args, q, rbuf, mbuf, html_begintag,
html_endtag, html_begin, html_end));
}
