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/*
+----------------------------------------------------------------------+
| Zend Engine |
+----------------------------------------------------------------------+
| Copyright (c) 1998-2013 Zend Technologies Ltd. (http://www.zend.com) |
+----------------------------------------------------------------------+
| This source file is subject to version 2.00 of the Zend license, |
| that is bundled with this package in the file LICENSE, and is |
| available through the world-wide-web at the following url: |
| http://www.zend.com/license/2_00.txt. |
| If you did not receive a copy of the Zend license and are unable to |
| obtain it through the world-wide-web, please send a note to |
| license@zend.com so we can mail you a copy immediately. |
+----------------------------------------------------------------------+
| Authors: Andi Gutmans <andi@zend.com> |
| Zeev Suraski <zeev@zend.com> |
+----------------------------------------------------------------------+
*/

/* $Id$ */

#include "zend.h"
#include <zend_language_parser.h>
#include "zend_compile.h"
#include "zend_highlight.h"
#include "zend_ptr_stack.h"
#include "zend_globals.h"

ZEND_API void zend_html_putc(char c)
{
switch (c) {
case '\n':
ZEND_PUTS("<br />");
break;
case '<':
ZEND_PUTS("&lt;");
break;
case '>':
ZEND_PUTS("&gt;");
break;
case '&':
ZEND_PUTS("&amp;");
break;
case ' ':
ZEND_PUTS("&nbsp;");
break;
case '\t':
ZEND_PUTS("&nbsp;&nbsp;&nbsp;&nbsp;");
break;
default:
ZEND_PUTC(c);
break;
}
}


ZEND_API void zend_html_puts(const char *s, uint len TSRMLS_DC)
{
const unsigned char *ptr = (const unsigned char*)s, *end = ptr + len;
unsigned char *filtered;
size_t filtered_len;

if (LANG_SCNG(output_filter)) {
LANG_SCNG(output_filter)(&filtered, &filtered_len, ptr, len TSRMLS_CC);
ptr = filtered;
end = filtered + filtered_len;
}

while (ptr<end) {
if (*ptr==' ') {
do {
zend_html_putc(*ptr);
} while ((++ptr < end) && (*ptr==' '));
} else {
zend_html_putc(*ptr++);
}
}

if (LANG_SCNG(output_filter)) {
efree(filtered);
}
}


ZEND_API void zend_highlight(zend_syntax_highlighter_ini *syntax_highlighter_ini TSRMLS_DC)
{
zval token;
int token_type;
char *last_color = syntax_highlighter_ini->highlight_html;
char *next_color;

zend_printf("<code>");
zend_printf("<span style=\"color: %s\">\n", last_color);
/* highlight stuff coming back from zendlex() */
token.type = 0;
while ((token_type=lex_scan(&token TSRMLS_CC))) {
switch (token_type) {
case T_INLINE_HTML:
next_color = syntax_highlighter_ini->highlight_html;
break;
case T_COMMENT:
case T_DOC_COMMENT:
next_color = syntax_highlighter_ini->highlight_comment;
break;
case T_OPEN_TAG:
case T_OPEN_TAG_WITH_ECHO:
next_color = syntax_highlighter_ini->highlight_default;
break;
case T_CLOSE_TAG:
next_color = syntax_highlighter_ini->highlight_default;
break;
case '"':
case T_ENCAPSED_AND_WHITESPACE:
case T_CONSTANT_ENCAPSED_STRING:
next_color = syntax_highlighter_ini->highlight_string;
break;
case T_WHITESPACE:
zend_html_puts((char*)LANG_SCNG(yy_text), LANG_SCNG(yy_leng) TSRMLS_CC); /* no color needed */
token.type = 0;
continue;
break;
default:
if (token.type == 0) {
next_color = syntax_highlighter_ini->highlight_keyword;
} else {
next_color = syntax_highlighter_ini->highlight_default;
}
break;
}

if (last_color != next_color) {
if (last_color != syntax_highlighter_ini->highlight_html) {
zend_printf("</span>");
}
last_color = next_color;
if (last_color != syntax_highlighter_ini->highlight_html) {
zend_printf("<span style=\"color: %s\">", last_color);
}
}

zend_html_puts((char*)LANG_SCNG(yy_text), LANG_SCNG(yy_leng) TSRMLS_CC);

if (token.type == IS_STRING) {
switch (token_type) {
case T_OPEN_TAG:
case T_OPEN_TAG_WITH_ECHO:
case T_CLOSE_TAG:
case T_WHITESPACE:
case T_COMMENT:
case T_DOC_COMMENT:
break;
default:
efree(token.value.str.val);
break;
}
} else if (token_type == T_END_HEREDOC) {
efree(token.value.str.val);
}
token.type = 0;
}

if (last_color != syntax_highlighter_ini->highlight_html) {
zend_printf("</span>\n");
}
zend_printf("</span>\n");
zend_printf("</code>");
}

ZEND_API void zend_strip(TSRMLS_D)
{
zval token;
int token_type;
int prev_space = 0;

token.type = 0;
while ((token_type=lex_scan(&token TSRMLS_CC))) {
switch (token_type) {
case T_WHITESPACE:
if (!prev_space) {
zend_write(" ", sizeof(" ") - 1);
prev_space = 1;
}
/* lack of break; is intentional */
case T_COMMENT:
case T_DOC_COMMENT:
token.type = 0;
continue;

case T_END_HEREDOC:
zend_write((char*)LANG_SCNG(yy_text), LANG_SCNG(yy_leng));
efree(token.value.str.val);
/* read the following character, either newline or ; */
if (lex_scan(&token TSRMLS_CC) != T_WHITESPACE) {
zend_write((char*)LANG_SCNG(yy_text), LANG_SCNG(yy_leng));
}
zend_write("\n", sizeof("\n") - 1);
prev_space = 1;
token.type = 0;
continue;

default:
zend_write((char*)LANG_SCNG(yy_text), LANG_SCNG(yy_leng));
break;
}

if (token.type == IS_STRING) {
switch (token_type) {
case T_OPEN_TAG:
case T_OPEN_TAG_WITH_ECHO:
case T_CLOSE_TAG:
case T_WHITESPACE:
case T_COMMENT:
case T_DOC_COMMENT:
break;

default:
efree(token.value.str.val);
break;
}
}
prev_space = token.type = 0;
}
}

/*
* Local variables:
* tab-width: 4
* c-basic-offset: 4
* indent-tabs-mode: t
* End:
*/
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