Adding iso8859-2 encoding support

git-svn-id: https://svn.code.sf.net/p/squirrelmail/code/trunk/squirrelmail@8034 7612ce4b-ef26-0410-bec9-ea0150e637f0

diff --git a/functions/encode/iso_8859_2.php b/functions/encode/iso_8859_2.php
new file mode 100644 (file)
index 0000000..68325ba
--- /dev/null
+++ b/functions/encode/iso_8859_2.php
@@ -0,0 +1,147 @@
+<?php
+/**
+ * iso-8859-2 encoding functions
+ *
+ * takes a string of unicode entities and converts it to a iso-8859-2 encoded string
+ * Unsupported characters are replaced with ?.
+ *
+ * @version $Id$
+ * @copyright Copyright &copy; SquirrelMail Development Team, 2004
+ * @package squirrelmail
+ * @subpackage encode
+ */
+
+/**
+ * Converts string to iso-8859-2
+ * @param string $string text with numeric unicode entities
+ * @return string iso-8859-2 encoded text
+ */
+function charset_encode_iso_8859_2 ($string) {
+   // don't run encoding function, if there is no encoded characters
+   if (! preg_match("'&#[0-9]+;'",$string) ) return $string;
+
+    $string=preg_replace("/&#([0-9]+);/e","unicodetoiso88592('\\1')",$string);
+    // $string=preg_replace("/&#[xX]([0-9A-F]+);/e","unicodetoiso88591(hexdec('\\1'))",$string);
+    
+    return $string;
+}
+
+/**
+ * Return iso-8859-2 symbol when unicode character number is provided
+ * 
+ * This function is used internally by charset_encode_iso_8859_2 
+ * function. It might be unavailable to other squirrelmail functions.
+ * Don't use it or make sure, that functions/encode/iso_8859_2.php is 
+ * included. 
+ *
+ * @param int $var decimal unicode value
+ * @return string iso-8859-2 character
+ */
+function unicodetoiso88592($var) {
+
+    $iso88592chars=array('160' => "\xA0",
+                        '164' => "\xA4",
+                        '167' => "\xA7",
+                        '168' => "\xA8",
+                        '173' => "\xAD",
+                        '176' => "\xB0",
+                        '180' => "\xB4",
+                        '184' => "\xB8",
+                        '193' => "\xC1",
+                        '194' => "\xC2",
+                        '196' => "\xC4",
+                        '199' => "\xC7",
+                        '201' => "\xC9",
+                        '203' => "\xCB",
+                        '205' => "\xCD",
+                        '206' => "\xCE",
+                        '211' => "\xD3",
+                        '212' => "\xD4",
+                        '214' => "\xD6",
+                        '215' => "\xD7",
+                        '218' => "\xDA",
+                        '220' => "\xDC",
+                        '221' => "\xDD",
+                        '223' => "\xDF",
+                        '225' => "\xE1",
+                        '226' => "\xE2",
+                        '228' => "\xE4",
+                        '231' => "\xE7",
+                        '233' => "\xE9",
+                        '235' => "\xEB",
+                        '237' => "\xED",
+                        '238' => "\xEE",
+                        '243' => "\xF3",
+                        '244' => "\xF4",
+                        '246' => "\xF6",
+                        '247' => "\xF7",
+                        '250' => "\xFA",
+                        '252' => "\xFC",
+                        '253' => "\xFD",
+                        '258' => "\xC3",
+                        '259' => "\xE3",
+                        '260' => "\xA1",
+                        '261' => "\xB1",
+                        '262' => "\xC6",
+                        '263' => "\xE6",
+                        '268' => "\xC8",
+                        '269' => "\xE8",
+                        '270' => "\xCF",
+                        '271' => "\xEF",
+                        '272' => "\xD0",
+                        '273' => "\xF0",
+                        '280' => "\xCA",
+                        '281' => "\xEA",
+                        '282' => "\xCC",
+                        '283' => "\xEC",
+                        '313' => "\xC5",
+                        '314' => "\xE5",
+                        '317' => "\xA5",
+                        '318' => "\xB5",
+                        '321' => "\xA3",
+                        '322' => "\xB3",
+                        '323' => "\xD1",
+                        '324' => "\xF1",
+                        '327' => "\xD2",
+                        '328' => "\xF2",
+                        '336' => "\xD5",
+                        '337' => "\xF5",
+                        '340' => "\xC0",
+                        '341' => "\xE0",
+                        '344' => "\xD8",
+                        '345' => "\xF8",
+                        '346' => "\xA6",
+                        '347' => "\xB6",
+                        '350' => "\xAA",
+                        '351' => "\xBA",
+                        '352' => "\xA9",
+                        '353' => "\xB9",
+                        '354' => "\xDE",
+                        '355' => "\xFE",
+                        '356' => "\xAB",
+                        '357' => "\xBB",
+                        '366' => "\xD9",
+                        '367' => "\xF9",
+                        '368' => "\xDB",
+                        '369' => "\xFB",
+                        '377' => "\xAC",
+                        '378' => "\xBC",
+                        '379' => "\xAF",
+                        '380' => "\xBF",
+                        '381' => "\xAE",
+                        '382' => "\xBE",
+                        '711' => "\xB7",
+                        '728' => "\xA2",
+                        '729' => "\xFF",
+                        '731' => "\xB2",
+                        '733' => "\xBD");
+
+
+    if (array_key_exists($var,$iso88592chars)) {
+        $ret=$iso88592chars[$var];
+    } else {
+        $ret='?';
+    }
+    return $ret;
+}
+?>
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