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|
/*
+----------------------------------------------------------------------+
| PHP HTML Embedded Scripting Language Version 3.0 |
+----------------------------------------------------------------------+
| Copyright (c) 1997-2000 PHP Development Team (See Credits file) |
+----------------------------------------------------------------------+
| This program is free software; you can redistribute it and/or modify |
| it under the terms of one of the following licenses: |
| |
| A) the GNU General Public License as published by the Free Software |
| Foundation; either version 2 of the License, or (at your option) |
| any later version. |
| |
| B) the PHP License as published by the PHP Development Team and |
| included in the distribution in the file: LICENSE |
| |
| This program is distributed in the hope that it will be useful, |
| but WITHOUT ANY WARRANTY; without even the implied warranty of |
| MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| GNU General Public License for more details. |
| |
| You should have received a copy of both licenses referred to here. |
| If you did not, or have any questions about PHP licensing, please |
| contact core@php.net. |
+----------------------------------------------------------------------+
| Authors: Rasmus Lerdorf <rasmus@lerdorf.on.ca> |
| Jaakko Hyvtti <jaakko.hyvatti@iki.fi> |
+----------------------------------------------------------------------+
*/
/* $Id: html.c,v 1.37 2000/09/12 17:23:30 rasmus Exp $ */
#include "php.h"
#include "internal_functions.h"
#include "reg.h"
#include "html.h"
#include <math.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"
};
#ifndef CHARSET_EBCDIC
#define ASC(ch) ch
#else
#define ASC(ch) os_toascii[(unsigned char)ch]
#endif /* CHARSET_EBCDIC */
PHPAPI char * _php3_htmlentities(char *s, int i, int all, int quote_style)
{
int len, maxlen;
unsigned char *old;
char *new;
old = (unsigned char *)s;
maxlen = 2 * i;
if (maxlen < 128)
maxlen = 128;
new = emalloc (maxlen);
len = 0;
while (i--) {
if (len + 9 > maxlen)
new = erealloc (new, maxlen += 128);
if ('&' == *old) {
memcpy (new + len, "&", 5);
len += 5;
} else if ('"' == *old && !(quote_style&ENT_NOQUOTES)) {
memcpy (new + len, """, 6);
len += 6;
} else if (39 == *old && (quote_style&ENT_QUOTES)) {
/* single quote (') */
memcpy (new + len, "'",6);
len += 6;
} else if ('<' == *old) {
memcpy (new + len, "<", 4);
len += 4;
} else if ('>' == *old) {
memcpy (new + len, ">", 4);
len += 4;
} else if (all && 160 <= ASC(*old)) {
new [len++] = '&';
strcpy (new + len, EntTable [ASC(*old) - 160]);
len += strlen (EntTable [ASC(*old) - 160]);
new [len++] = ';';
} else {
new [len++] = *old;
}
old++;
}
new [len] = '\0';
return new;
}
static void _htmlentities(INTERNAL_FUNCTION_PARAMETERS, int all)
{
pval *arg, *quotes;
char *new;
int argc, quote_style;
TLS_VARS;
argc = ARG_COUNT(ht);
if ((argc == 1 && getParameters(ht, 1, &arg) == FAILURE) ||
(argc == 2 && getParameters(ht, 2, &arg, "es) == FAILURE) ||
argc < 1 || argc > 2) {
WRONG_PARAM_COUNT;
}
convert_to_string(arg);
if(argc==2) {
convert_to_long(quotes);
quote_style = quotes->value.lval;
} else quote_style = ENT_COMPAT;
new = _php3_htmlentities(arg->value.str.val, arg->value.str.len, all, quote_style);
RETVAL_STRINGL(new,strlen(new),0);
}
/* {{{ proto string htmlspecialchars(string string [, int quote_style])
Convert special characters to HTML entities */
void php3_htmlspecialchars(INTERNAL_FUNCTION_PARAMETERS)
{
/* _php3_htmlentities(INTERNAL_FUNCTION_PARAM_PASSTHRU,0);*/
_htmlentities(INTERNAL_FUNCTION_PARAM_PASSTHRU,0);
}
/* }}} */
/* {{{ proto string htmlentities(string string [, int quote_style])
Convert all applicable characters to HTML entities */
void php3_htmlentities(INTERNAL_FUNCTION_PARAMETERS)
{
/* _php3_htmlentities(INTERNAL_FUNCTION_PARAM_PASSTHRU,1);*/
_htmlentities(INTERNAL_FUNCTION_PARAM_PASSTHRU,1);
}
/* }}} */
/* {{{ proto string gamma_correct_tag(string color, double inputgamma, double outputgamma)
Apply a gamma correction to a HTML color value (#rrggbb) */
void php3_gamma_correct_tag(INTERNAL_FUNCTION_PARAMETERS)
{
pval *input, *inputgamma, *outputgamma;
char *rr, *gg, *bb, *output;
if (ARG_COUNT(ht) != 3 || getParameters(ht, 3, &input, &inputgamma, &outputgamma)
== FAILURE) {
WRONG_PARAM_COUNT;
}
if (input->value.str.len < 7) {
php3_error(E_WARNING, "Color argument to %s() should be in #rrggbb format",
GLOBAL(function_state).function_name);
RETURN_FALSE;
}
convert_to_string(input);
convert_to_double(inputgamma);
convert_to_double(outputgamma);
rr = emalloc(2 + 1);
gg = emalloc(2 + 1);
bb = emalloc(2 + 1);
output = emalloc(7 + 1);
strncpy(rr,input->value.str.val+1,2);
strncpy(gg,input->value.str.val+3,2);
strncpy(bb,input->value.str.val+5,2);
efree(rr);
efree(gg);
efree(bb);
sprintf(output,"#%02X%02X%02X",
(int)((pow((pow((strtol(rr, NULL, 16) / 255.0),inputgamma->value.dval)), 1.0 / outputgamma->value.dval) * 255)+.5),
(int)((pow((pow((strtol(gg, NULL, 16) / 255.0),inputgamma->value.dval)), 1.0 / outputgamma->value.dval) * 255)+.5),
(int)((pow((pow((strtol(bb, NULL, 16) / 255.0),inputgamma->value.dval)), 1.0 / outputgamma->value.dval) * 255)+.5));
return_value->type = IS_STRING;
return_value->value.str.len = strlen(output);
return_value->value.str.val = output;
}
/* }}} */
/*
* Local variables:
* tab-width: 4
* c-basic-offset: 4
* End:
*/
|
