netsurf/render/textplain.c

82 lines
1.9 KiB
C

/*
* This file is part of NetSurf, http://netsurf.sourceforge.net/
* Licensed under the GNU General Public License,
* http://www.opensource.org/licenses/gpl-license
* Copyright 2004 James Bursa <bursa@users.sourceforge.net>
*/
#include "libxml/HTMLparser.h"
#include "netsurf/content/content.h"
#include "netsurf/render/html.h"
#include "netsurf/render/textplain.h"
#include "netsurf/utils/messages.h"
static const char header[] = "<html><body><pre>";
static const char footer[] = "</pre></body></html>";
bool textplain_create(struct content *c, const char *params[])
{
if (!html_create(c, params))
/* html_create() must have broadcast MSG_ERROR already, so we
* don't need to. */
return false;
htmlParseChunk(c->data.html.parser, header, sizeof(header) - 1, 0);
return true;
}
bool textplain_process_data(struct content *c, char *data,
unsigned int size)
{
unsigned int i, s;
char *d, *p;
union content_msg_data msg_data;
bool ret;
/* count number of '<' in data buffer */
for (d = data, i = 0, s = 0; i != size; i++, d++) {
if (*d == '<')
s++;
}
/* create buffer for modified input */
d = calloc(size + 3*s, sizeof(char));
if (!d) {
msg_data.error = messages_get("NoMemory");
content_broadcast(c, CONTENT_MSG_ERROR, msg_data);
return false;
}
/* copy data across to modified buffer,
* replacing occurrences of '<' with '&lt;'
* This prevents the parser stripping sequences of '<...>'
*/
for (p = d, i = 0, s = 0; i != size; i++, data++) {
if (*data == '<') {
*p++ = '&';
*p++ = 'l';
*p++ = 't';
*p++ = ';';
s += 4;
}
else {
*p++ = *data;
s++;
}
}
ret = html_process_data(c, d, s);
free(d);
return ret;
}
bool textplain_convert(struct content *c, int width, int height)
{
htmlParseChunk(c->data.html.parser, footer, sizeof(footer) - 1, 0);
c->type = CONTENT_HTML;
return html_convert(c, width, height);
}