| commit | author | age | ||
| 4e17e6 | 1 | <?php |
| T | 2 | function mod_b64_decode($data){ |
| 3 | return base64_decode(str_replace(",","/",$data)); | |
| 4 | } | |
| 5 | ||
| 6 | function mod_b64_encode($data){ | |
| 7 | return str_replace("/",",",str_replace("=","",base64_encode($data))); | |
| 8 | } | |
| 9 | ||
| 10 | ||
| 11 | function utf8_to_html($str){ | |
| 12 | $len = strlen($str); | |
| 13 | $out = ""; | |
| 14 | for($i=0;$i<$len;$i+=2){ | |
| 15 | $val = ord($str[$i]); | |
| 16 | $next_val = ord($str[$i+1]); | |
| 17 | if ($val<255){ | |
| 18 | $out.="&#".($val*256+$next_val).";"; | |
| 19 | }else{ | |
| 20 | $out.=$str[$i].$str[$i+1]; | |
| 21 | } | |
| 22 | } | |
| 23 | return $out; | |
| 24 | } | |
| 25 | ||
| 26 | function iil_utf7_decode($str, $raw=false){ | |
| 27 | if (strpos($str, '&')===false) return $str; | |
| 28 | ||
| 29 | $len = strlen($str); | |
| 30 | $in_b64 = false; | |
| 31 | $b64_data = ""; | |
| 32 | $out = ""; | |
| 33 | for ($i=0;$i<$len;$i++){ | |
| 34 | $char = $str[$i]; | |
| 35 | if ($char=='&') $in_b64 = true; | |
| 36 | else if ($in_b64 && $char=='-'){ | |
| 37 | $in_b64 = false; | |
| 38 | if ($b64_data=="") $out.="&"; | |
| 39 | else{ | |
| 40 | $dec=mod_b64_decode($b64_data); | |
| 41 | $out.=($raw?$dec:utf8_to_html($dec)); | |
| 42 | $b64_data = ""; | |
| 43 | } | |
| 44 | }else if ($in_b64) $b64_data.=$char; | |
| 45 | else $out.=$char; | |
| 46 | } | |
| 47 | return $out; | |
| 48 | } | |
| 49 | ||
| 50 | function iil_utf7_encode($str){ | |
| 51 | if (!ereg("[\200-\237]",$str) && !ereg("[\241-\377]",$str)) | |
| 52 | return $str; | |
| 53 | ||
| 54 | $len = strlen($str); | |
| 55 | ||
| 56 | for ($i=0;$i<$len;$i++){ | |
| 57 | $val = ord($str[$i]); | |
| 58 | if ($val>=224 && $val<=239){ | |
| 59 | $unicode = ($val-224) * 4096 + (ord($str[$i+1])-128) * 64 + (ord($str[$i+2])-128); | |
| 60 | $i+=2; | |
| 61 | $utf_code.=chr((int)($unicode/256)).chr($unicode%256); | |
| 62 | }else if ($val>=192 && $val<=223){ | |
| 63 | $unicode = ($val-192) * 64 + (ord($str[$i+1])-128); | |
| 64 | $i++; | |
| 65 | $utf_code.=chr((int)($unicode/256)).chr($unicode%256); | |
| 66 | }else{ | |
| 67 | if ($utf_code){ | |
| 68 | $out.='&'.mod_b64_encode($utf_code).'-'; | |
| 69 | $utf_code=""; | |
| 70 | } | |
| 71 | if ($str[$i]=="-") $out.="&"; | |
| 72 | $out.=$str[$i]; | |
| 73 | } | |
| 74 | } | |
| 75 | if ($utf_code) | |
| 76 | $out.='&'.mod_b64_encode($utf_code).'-'; | |
| 77 | return $out; | |
| 78 | } | |
| 79 | ||
| 80 | ||
| 81 | ?> | |
