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|
/*
+----------------------------------------------------------------------+
| PHP version 4.0 |
+----------------------------------------------------------------------+
| Copyright (c) 1997, 1998, 1999, 2000 The PHP Group |
+----------------------------------------------------------------------+
| This source file is subject to version 2.02 of the PHP license, |
| that is bundled with this package in the file LICENSE, and is |
| available at through the world-wide-web at |
| http://www.php.net/license/2_02.txt. |
| If you did not receive a copy of the PHP license and are unable to |
| obtain it through the world-wide-web, please send a note to |
| license@php.net so we can mail you a copy immediately. |
+----------------------------------------------------------------------+
| Authors: Rasmus Lerdorf <rasmus@lerdorf.on.ca> |
| Jaakko Hyvätti <jaakko.hyvatti@iki.fi> |
+----------------------------------------------------------------------+
*/
/* $Id$ */
#include "php.h"
#include "reg.h"
#include "html.h"
/* This must be fixed to handle the input string according to LC_CTYPE.
Defaults to ISO-8859-1 for now. */
static char EntTable[][7] =
{
"nbsp","iexcl","cent","pound","curren","yen","brvbar",
"sect","uml","copy","ordf","laquo","not","shy","reg",
"macr","deg","plusmn","sup2","sup3","acute","micro",
"para","middot","cedil","sup1","ordm","raquo","frac14",
"frac12","frac34","iquest","Agrave","Aacute","Acirc",
"Atilde","Auml","Aring","AElig","Ccedil","Egrave",
"Eacute","Ecirc","Euml","Igrave","Iacute","Icirc",
"Iuml","ETH","Ntilde","Ograve","Oacute","Ocirc","Otilde",
"Ouml","times","Oslash","Ugrave","Uacute","Ucirc","Uuml",
"Yacute","THORN","szlig","agrave","aacute","acirc",
"atilde","auml","aring","aelig","ccedil","egrave",
"eacute","ecirc","euml","igrave","iacute","icirc",
"iuml","eth","ntilde","ograve","oacute","ocirc","otilde",
"ouml","divide","oslash","ugrave","uacute","ucirc",
"uuml","yacute","thorn","yuml"
};
PHPAPI char *php_escape_html_entities(unsigned char *old, int oldlen, int *newlen, int all)
{
int i, maxlen, len;
char *new;
maxlen = 2 * oldlen;
if (maxlen < 128)
maxlen = 128;
new = emalloc (maxlen);
len = 0;
i = oldlen;
while (i--) {
if (len + 9 > maxlen)
new = erealloc (new, maxlen += 128);
if (38 == *old) {
memcpy (new + len, "&", 5);
len += 5;
} else if (34 == *old) {
memcpy (new + len, """, 6);
len += 6;
} else if (60 == *old) {
memcpy (new + len, "<", 4);
len += 4;
} else if (62 == *old) {
memcpy (new + len, ">", 4);
len += 4;
} else if (all && 160 <= *old) {
new [len++] = '&';
strcpy (new + len, EntTable [*old - 160]);
len += strlen (EntTable [*old - 160]);
new [len++] = ';';
} else {
new [len++] = *old;
}
old++;
}
new [len] = '\0';
*newlen = len;
return new;
}
static void php_html_entities(INTERNAL_FUNCTION_PARAMETERS, int all)
{
zval **arg;
int len;
char *new;
if (ZEND_NUM_ARGS() != 1 || zend_get_parameters_ex(1, &arg) == FAILURE) {
WRONG_PARAM_COUNT;
}
convert_to_string_ex(arg);
new = php_escape_html_entities((*arg)->value.str.val, (*arg)->value.str.len, &len, all);
RETVAL_STRINGL(new,len,0);
}
#define HTML_SPECIALCHARS 0
#define HTML_ENTITIES 1
void register_html_constants(INIT_FUNC_ARGS)
{
REGISTER_LONG_CONSTANT("HTML_SPECIALCHARS", HTML_SPECIALCHARS, CONST_PERSISTENT|CONST_CS);
REGISTER_LONG_CONSTANT("HTML_ENTITIES", HTML_ENTITIES, CONST_PERSISTENT|CONST_CS);
}
/* {{{ proto string htmlspecialchars(string string)
Convert special characters to HTML entities */
PHP_FUNCTION(htmlspecialchars)
{
php_html_entities(INTERNAL_FUNCTION_PARAM_PASSTHRU,0);
}
/* }}} */
/* {{{ proto string htmlentities(string string)
Convert all applicable characters to HTML entities */
PHP_FUNCTION(htmlentities)
{
php_html_entities(INTERNAL_FUNCTION_PARAM_PASSTHRU,1);
}
/* }}} */
/* {{{ proto array get_html_translation_table([int whichone])
Returns the internal translation table used by htmlspecialchars and htmlentities */
PHP_FUNCTION(get_html_translation_table)
{
zval **whichone;
int which = 0;
int ac = ZEND_NUM_ARGS();
int inx;
char ind[ 2 ];
if (ac < 0 || ac > 1 || zend_get_parameters_ex(ac, &whichone) == FAILURE) {
WRONG_PARAM_COUNT;
}
if (ac == 1) {
convert_to_long_ex(whichone);
which = (*whichone)->value.lval;
}
array_init(return_value);
ind[1] = 0;
switch (which) {
case HTML_ENTITIES:
for (inx = 160; inx <= 255; inx++) {
char buffer[16];
ind[0] = inx;
sprintf(buffer,"&%s;",EntTable[inx-160]);
add_assoc_string(return_value,ind,buffer,1);
}
/* break thru */
case HTML_SPECIALCHARS:
ind[0]=38; add_assoc_string(return_value,ind,"&",1);
ind[0]=34; add_assoc_string(return_value,ind,""",1);
ind[0]=60; add_assoc_string(return_value,ind,"<",1);
ind[0]=62; add_assoc_string(return_value,ind,">",1);
break;
}
}
/* }}} */
/*
* Local variables:
* tab-width: 4
* c-basic-offset: 4
* End:
*/
|
