From 4e17e6c9dbac8991ee8b302cb2581241247dc8bc Mon Sep 17 00:00:00 2001
From: thomascube <thomas@roundcube.net>
Date: Sun, 25 Sep 2005 14:18:03 +0000
Subject: Initial revision

---
 program/lib/icl_commons.inc | 81 +++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 81 insertions(+)
 create mode 100644 program/lib/icl_commons.inc

(limited to 'program/lib/icl_commons.inc')

diff --git a/program/lib/icl_commons.inc b/program/lib/icl_commons.inc
new file mode 100644
index 000000000..599205178
--- /dev/null
+++ b/program/lib/icl_commons.inc
@@ -0,0 +1,81 @@
+<?php
+function mod_b64_decode($data){
+	return base64_decode(str_replace(",","/",$data));
+}
+
+function mod_b64_encode($data){
+	return str_replace("/",",",str_replace("=","",base64_encode($data)));
+}
+
+
+function utf8_to_html($str){
+	$len = strlen($str);
+	$out = "";
+	for($i=0;$i<$len;$i+=2){
+		$val = ord($str[$i]);
+		$next_val = ord($str[$i+1]);
+		if ($val<255){
+			$out.="&#".($val*256+$next_val).";";
+		}else{
+			$out.=$str[$i].$str[$i+1];
+		}
+	}
+	return $out;
+}
+
+function iil_utf7_decode($str, $raw=false){
+	if (strpos($str, '&')===false) return $str;
+	
+	$len = strlen($str);
+	$in_b64 = false;
+	$b64_data = "";
+	$out = "";
+	for ($i=0;$i<$len;$i++){
+		$char = $str[$i];
+		if ($char=='&') $in_b64 = true;
+		else if ($in_b64 && $char=='-'){
+			$in_b64 = false;
+			if ($b64_data=="") $out.="&";
+			else{
+				$dec=mod_b64_decode($b64_data);
+				$out.=($raw?$dec:utf8_to_html($dec));
+				$b64_data = "";
+			}
+		}else if ($in_b64) $b64_data.=$char;
+		else $out.=$char;
+	}
+	return $out;
+}
+
+function iil_utf7_encode($str){
+	if (!ereg("[\200-\237]",$str) && !ereg("[\241-\377]",$str))
+        return $str;
+
+	$len = strlen($str);
+
+	for ($i=0;$i<$len;$i++){
+		$val = ord($str[$i]);
+		if ($val>=224 && $val<=239){
+			$unicode = ($val-224) * 4096 + (ord($str[$i+1])-128) * 64 + (ord($str[$i+2])-128);
+			$i+=2;
+			$utf_code.=chr((int)($unicode/256)).chr($unicode%256);
+		}else if ($val>=192 && $val<=223){
+			$unicode = ($val-192) * 64 + (ord($str[$i+1])-128);
+			$i++;
+			$utf_code.=chr((int)($unicode/256)).chr($unicode%256);
+		}else{
+			if ($utf_code){
+				$out.='&'.mod_b64_encode($utf_code).'-';
+				$utf_code="";
+			}
+			if ($str[$i]=="-") $out.="&";
+			$out.=$str[$i];
+		}
+	}
+	if ($utf_code)
+		$out.='&'.mod_b64_encode($utf_code).'-';
+	return $out;
+}
+
+
+?>
\ No newline at end of file
-- 
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