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https://github.com/netsurf-browser/netsurf
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1105d9c397
Improve plain text rendering (converts occurrences of '<' with '<') svn path=/import/netsurf/; revision=1369
82 lines
1.9 KiB
C
82 lines
1.9 KiB
C
/*
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* This file is part of NetSurf, http://netsurf.sourceforge.net/
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* Licensed under the GNU General Public License,
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* http://www.opensource.org/licenses/gpl-license
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* Copyright 2004 James Bursa <bursa@users.sourceforge.net>
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*/
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#include "libxml/HTMLparser.h"
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#include "netsurf/content/content.h"
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#include "netsurf/render/html.h"
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#include "netsurf/render/textplain.h"
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#include "netsurf/utils/messages.h"
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static const char header[] = "<html><body><pre>";
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static const char footer[] = "</pre></body></html>";
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bool textplain_create(struct content *c, const char *params[])
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{
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if (!html_create(c, params))
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/* html_create() must have broadcast MSG_ERROR already, so we
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* don't need to. */
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return false;
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htmlParseChunk(c->data.html.parser, header, sizeof(header) - 1, 0);
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return true;
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}
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bool textplain_process_data(struct content *c, char *data,
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unsigned int size)
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{
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unsigned int i, s;
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char *d, *p;
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union content_msg_data msg_data;
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bool ret;
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/* count number of '<' in data buffer */
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for (d = data, i = 0, s = 0; i != size; i++, d++) {
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if (*d == '<')
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s++;
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}
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/* create buffer for modified input */
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d = calloc(size + 3*s, sizeof(char));
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if (!d) {
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msg_data.error = messages_get("NoMemory");
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content_broadcast(c, CONTENT_MSG_ERROR, msg_data);
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return false;
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}
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/* copy data across to modified buffer,
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* replacing occurrences of '<' with '<'
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* This prevents the parser stripping sequences of '<...>'
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*/
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for (p = d, i = 0, s = 0; i != size; i++, data++) {
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if (*data == '<') {
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*p++ = '&';
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*p++ = 'l';
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*p++ = 't';
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*p++ = ';';
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s += 4;
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}
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else {
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*p++ = *data;
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s++;
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}
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}
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ret = html_process_data(c, d, s);
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free(d);
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return ret;
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}
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bool textplain_convert(struct content *c, int width, int height)
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{
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htmlParseChunk(c->data.html.parser, footer, sizeof(footer) - 1, 0);
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c->type = CONTENT_HTML;
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return html_convert(c, width, height);
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}
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