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-rw-r--r--program/lib/utf8.inc104
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diff --git a/program/lib/utf8.inc b/program/lib/utf8.inc
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-<?php
-/////////////////////////////
-// utf8.inc
-// (C)2002 Ryo Chijiiwa <Ryo@IlohaMail.org>
-//
-// Description:
-// UTF-8 handling functions
-//
-// This file is part of IlohaMail. IlohaMail is free software released
-// under the GPL license. See enclosed file COPYING for details, or
-// see http://www.fsf.org/copyleft/gpl.html
-////////////////////////////
-
-/**
-* takes a string of utf-8 encoded characters and converts it to a string of unicode entities
-* each unicode entitiy has the form &#nnnnn; n={0..9} and can be displayed by utf-8 supporting
-* browsers
-* @param $source string encoded using utf-8 [STRING]
-* @return string of unicode entities [STRING]
-* @access public
-*/
-/**
-* Author: ronen at greyzone dot com
-* Taken from php.net comment:
-* http://www.php.net/manual/en/function.utf8-decode.php
-**/
-function utf8ToUnicodeEntities ($source) {
- // array used to figure what number to decrement from character order value
- // according to number of characters used to map unicode to ascii by utf-8
- $decrement[4] = 240;
- $decrement[3] = 224;
- $decrement[2] = 192;
- $decrement[1] = 0;
-
- // the number of bits to shift each charNum by
- $shift[1][0] = 0;
- $shift[2][0] = 6;
- $shift[2][1] = 0;
- $shift[3][0] = 12;
- $shift[3][1] = 6;
- $shift[3][2] = 0;
- $shift[4][0] = 18;
- $shift[4][1] = 12;
- $shift[4][2] = 6;
- $shift[4][3] = 0;
-
- $pos = 0;
- $len = strlen ($source);
- $encodedString = '';
- while ($pos < $len) {
- $asciiPos = ord (substr ($source, $pos, 1));
- if (($asciiPos >= 240) && ($asciiPos <= 255)) {
- // 4 chars representing one unicode character
- $thisLetter = substr ($source, $pos, 4);
- $pos += 4;
- }
- else if (($asciiPos >= 224) && ($asciiPos <= 239)) {
- // 3 chars representing one unicode character
- $thisLetter = substr ($source, $pos, 3);
- $pos += 3;
- }
- else if (($asciiPos >= 192) && ($asciiPos <= 223)) {
- // 2 chars representing one unicode character
- $thisLetter = substr ($source, $pos, 2);
- $pos += 2;
- }
- else {
- // 1 char (lower ascii)
- $thisLetter = substr ($source, $pos, 1);
- $pos += 1;
- }
-
- // process the string representing the letter to a unicode entity
- $thisLen = strlen ($thisLetter);
- $thisPos = 0;
- $decimalCode = 0;
- while ($thisPos < $thisLen) {
- $thisCharOrd = ord (substr ($thisLetter, $thisPos, 1));
- if ($thisPos == 0) {
- $charNum = intval ($thisCharOrd - $decrement[$thisLen]);
- $decimalCode += ($charNum << $shift[$thisLen][$thisPos]);
- }
- else {
- $charNum = intval ($thisCharOrd - 128);
- $decimalCode += ($charNum << $shift[$thisLen][$thisPos]);
- }
-
- $thisPos++;
- }
-
- if ($decimalCode<128)
- $encodedLetter = chr($decimalCode);
- else if ($thisLen == 1)
- $encodedLetter = "&#". str_pad($decimalCode, 3, "0", STR_PAD_LEFT) . ';';
- else
- $encodedLetter = "&#". str_pad($decimalCode, 5, "0", STR_PAD_LEFT) . ';';
-
- $encodedString .= $encodedLetter;
- }
-
- return $encodedString;
-}
-
-?> \ No newline at end of file