PHPの正規表現

Question

M3AAWG（メッセージング、マルウェアやモバイル濫用防止作業部会）は、「Unicodeの乱用防止のためのベストプラクティス」の手順を配信

：

• M3AAWG Unicode Abuse Overview and Tutorial
• M3AAWG Best Practices for Unicode Abuse Prevention

私は、このチェックを実装する：ユーザ名フィールド（PHP）は、この条件を満たしている：

All characters in each identifier must be **from a single script** or from the combinations: 
- Latin + Han + Hiragana + Katakana 
- Latin + Han + Bopomofo 
- Latin + Han + Hangul 

組み合わせ部分はコードに簡単に思えますが：

$nonLatinHanHiraganaKatakana = preg_match_all('/[^\\p{Common}\\p{Latin}\\p{Han}\\p{Hiragana}\\p{Katakana}]/u', $value); 
$nonLatinHanBopomofo = preg_match_all('/[^\\p{Common}\\p{Latin}\\p{Han}\\p{Bopomofo}]/u', $value); 
$nonLatinHanHangul = preg_match_all('/[^\\p{Common}\\p{Latin}\\p{Han}\\p{Hangul}]/u', $value); 

// If none of the allowed combinations by M3AAWG, then reject 
if ($nonLatinHanHiraganaKatakana && $nonLatinHanBopomofo && $nonLatinHanHangul) 
{ 
    // REJECT 
} 

は、文字列は単一のスクリプトから来ているかどうかを確認する簡単な方法はありますか？

些細なスタッフは、それぞれのスクリプトを個別にチェックしているようですが、何百もあり、実用的ではなく、パフォーマンスの価値もありませんでした（つまり、{latin}、{greek}おそらく、「ユーザ名」の各文字を「スクリプト」にする方法があるのでしょうか？それで複数の文字があるかどうかを確認してください。

Answer 1

確かに彼らは ブローhardsのちょうど束ではありません。それらが標準の ベアラーの場合は、リストの の許可された組み合わせを提供するようにしてください。 は正規表現を構成するために使用できます。そして、 単一正規表現を作ることに何も問題はありません。

^(?>[\p{Latin}\p{Han}\p{Hiragana}\p{Katakana}]+|[\p{Latin}\p{Han}\p{Bopomofo}]+|[\p{Latin}\p{Han}\p{Hangul}]+)$

ラテン語から

^
(?> 
     [\p{Latin}\p{Han}\p{Hiragana}\p{Katakana}]+ 
    | 
     [\p{Latin}\p{Han}\p{Bopomofo}]+ 
    | 
     [\p{Latin}\p{Han}\p{Hangul}]+ 

    # Add as many as you need 
    # | \p{..} 
) 
$ 

Answer 2

文字列が1つのスクリプト？ （...のみ{ラテン}、{ギリシャ}、などだった何の意味？

」のswitchを使用しますすべての」可能なオプション、すなわち：

<?php 
echo detectChars("例例")."\n"; 
echo detectChars("Χαίρετε")."\n"; 
echo detectChars("user345")."\n"; 

function detectChars($username){ 
$chars = "NOT ALLOWED"; 
switch(true){ 
case preg_match('/^\p{Common}+$/u', $username): 
    $chars = preg_replace('/\\\\p|\{|\}/m', '', "\p{Common}"); 
    break; 
case preg_match('/^\p{Arabic}+$/u', $username): 
    $chars = preg_replace('/\\\\p|\{|\}/m', '', "\p{Arabic}"); 
    break; 
case preg_match('/^\p{Armenian}+$/u', $username): 
    $chars = preg_replace('/\\\\p|\{|\}/m', '', "\p{Armenian}"); 
    break; 
case preg_match('/^\p{Bengali}+$/u', $username): 
    $chars = preg_replace('/\\\\p|\{|\}/m', '', "\p{Bengali}"); 
    break; 
case preg_match('/^\p{Bopomofo}+$/u', $username): 
    $chars = preg_replace('/\\\\p|\{|\}/m', '', "\p{Bopomofo}"); 
    break; 
case preg_match('/^\p{Braille}+$/u', $username): 
    $chars = preg_replace('/\\\\p|\{|\}/m', '', "\p{Braille}"); 
    break; 
case preg_match('/^\p{Buhid}+$/u', $username): 
    $chars = preg_replace('/\\\\p|\{|\}/m', '', "\p{Buhid}"); 
    break; 
case preg_match('/^\p{Canadian_Aboriginal}+$/u', $username): 
    $chars = preg_replace('/\\\\p|\{|\}/m', '', "\p{Canadian_Aboriginal}"); 
    break; 
case preg_match('/^\p{Cherokee}+$/u', $username): 
    $chars = preg_replace('/\\\\p|\{|\}/m', '', "\p{Cherokee}"); 
    break; 
case preg_match('/^\p{Cyrillic}+$/u', $username): 
    $chars = preg_replace('/\\\\p|\{|\}/m', '', "\p{Cyrillic}"); 
    break; 
case preg_match('/^\p{Devanagari}+$/u', $username): 
    $chars = preg_replace('/\\\\p|\{|\}/m', '', "\p{Devanagari}"); 
    break; 
case preg_match('/^\p{Ethiopic}+$/u', $username): 
    $chars = preg_replace('/\\\\p|\{|\}/m', '', "\p{Ethiopic}"); 
    break; 
case preg_match('/^\p{Georgian}+$/u', $username): 
    $chars = preg_replace('/\\\\p|\{|\}/m', '', "\p{Georgian}"); 
    break; 
case preg_match('/^\p{Greek}+$/u', $username): 
    $chars = preg_replace('/\\\\p|\{|\}/m', '', "\p{Greek}"); 
    break; 
case preg_match('/^\p{Gujarati}+$/u', $username): 
    $chars = preg_replace('/\\\\p|\{|\}/m', '', "\p{Gujarati}"); 
    break; 
case preg_match('/^\p{Gurmukhi}+$/u', $username): 
    $chars = preg_replace('/\\\\p|\{|\}/m', '', "\p{Gurmukhi}"); 
    break; 
case preg_match('/^\p{Han}+$/u', $username): 
    $chars = preg_replace('/\\\\p|\{|\}/m', '', "\p{Han}"); 
    break; 
case preg_match('/^\p{Hangul}+$/u', $username): 
    $chars = preg_replace('/\\\\p|\{|\}/m', '', "\p{Hangul}"); 
    break; 
case preg_match('/^\p{Hanunoo}+$/u', $username): 
    $chars = preg_replace('/\\\\p|\{|\}/m', '', "\p{Hanunoo}"); 
    break; 
case preg_match('/^\p{Hebrew}+$/u', $username): 
    $chars = preg_replace('/\\\\p|\{|\}/m', '', "\p{Hebrew}"); 
    break; 
case preg_match('/^\p{Hiragana}+$/u', $username): 
    $chars = preg_replace('/\\\\p|\{|\}/m', '', "\p{Hiragana}"); 
    break; 
case preg_match('/^\p{Inherited}+$/u', $username): 
    $chars = preg_replace('/\\\\p|\{|\}/m', '', "\p{Inherited}"); 
    break; 
case preg_match('/^\p{Kannada}+$/u', $username): 
    $chars = preg_replace('/\\\\p|\{|\}/m', '', "\p{Kannada}"); 
    break; 
case preg_match('/^\p{Katakana}+$/u', $username): 
    $chars = preg_replace('/\\\\p|\{|\}/m', '', "\p{Katakana}"); 
    break; 
case preg_match('/^\p{Khmer}+$/u', $username): 
    $chars = preg_replace('/\\\\p|\{|\}/m', '', "\p{Khmer}"); 
    break; 
case preg_match('/^\p{Lao}+$/u', $username): 
    $chars = preg_replace('/\\\\p|\{|\}/m', '', "\p{Lao}"); 
    break; 
case preg_match('/^\p{Latin}+$/u', $username): 
    $chars = preg_replace('/\\\\p|\{|\}/m', '', "\p{Latin}"); 
    break; 
case preg_match('/^\p{Limbu}+$/u', $username): 
    $chars = preg_replace('/\\\\p|\{|\}/m', '', "\p{Limbu}"); 
    break; 
case preg_match('/^\p{Malayalam}+$/u', $username): 
    $chars = preg_replace('/\\\\p|\{|\}/m', '', "\p{Malayalam}"); 
    break; 
case preg_match('/^\p{Mongolian}+$/u', $username): 
    $chars = preg_replace('/\\\\p|\{|\}/m', '', "\p{Mongolian}"); 
    break; 
case preg_match('/^\p{Myanmar}+$/u', $username): 
    $chars = preg_replace('/\\\\p|\{|\}/m', '', "\p{Myanmar}"); 
    break; 
case preg_match('/^\p{Ogham}+$/u', $username): 
    $chars = preg_replace('/\\\\p|\{|\}/m', '', "\p{Ogham}"); 
    break; 
case preg_match('/^\p{Oriya}+$/u', $username): 
    $chars = preg_replace('/\\\\p|\{|\}/m', '', "\p{Oriya}"); 
    break; 
case preg_match('/^\p{Runic}+$/u', $username): 
    $chars = preg_replace('/\\\\p|\{|\}/m', '', "\p{Runic}"); 
    break; 
case preg_match('/^\p{Sinhala}+$/u', $username): 
    $chars = preg_replace('/\\\\p|\{|\}/m', '', "\p{Sinhala}"); 
    break; 
case preg_match('/^\p{Syriac}+$/u', $username): 
    $chars = preg_replace('/\\\\p|\{|\}/m', '', "\p{Syriac}"); 
    break; 
case preg_match('/^\p{Tagalog}+$/u', $username): 
    $chars = preg_replace('/\\\\p|\{|\}/m', '', "\p{Tagalog}"); 
    break; 
case preg_match('/^\p{Tagbanwa}+$/u', $username): 
    $chars = preg_replace('/\\\\p|\{|\}/m', '', "\p{Tagbanwa}"); 
    break; 
case preg_match('/^\p{Tamil}+$/u', $username): 
    $chars = preg_replace('/\\\\p|\{|\}/m', '', "\p{Tamil}"); 
    break; 
case preg_match('/^\p{Telugu}+$/u', $username): 
    $chars = preg_replace('/\\\\p|\{|\}/m', '', "\p{Telugu}"); 
    break; 
case preg_match('/^\p{Thaana}+$/u', $username): 
    $chars = preg_replace('/\\\\p|\{|\}/m', '', "\p{Thaana}"); 
    break; 
case preg_match('/^\p{Thai}+$/u', $username): 
    $chars = preg_replace('/\\\\p|\{|\}/m', '', "\p{Thai}"); 
    break; 
case preg_match('/^\p{Tibetan}+$/u', $username): 
    $chars = preg_replace('/\\\\p|\{|\}/m', '', "\p{Tibetan}"); 
    break; 
case preg_match('/^\p{Yi} +$/u', $username): 
    $chars = preg_replace('/\\\\p|\{|\}/m', '', "\p{Yi}"); 
    break; 
} 
return $chars; 
} 

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出力：

Han 
Greek 
NOT ALLOWED 

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