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如何在Lucee中模拟Unicode JS正则表达式

lucee cfml coldfusion regex

3

Lance · 技术社区 · 6 年前

这是JS

function charTest(k){
    var regexp = /^[\u00C0-\u00ff\s -\~]+$/;
    return regexp.test(k)
}

if(!charTest(thisKey)){
    alert("Please Use Latin Characters Only");
    return false;
}

regexp = '[\u00C0-\u00ff\s -\~]+/';
writeDump(reFind(regexp,"æµ));
writeDump(reFind(regexp,"test));

我也试过了

 regexp = "[\\p{L}]";

但垃圾场总是 0

1 回复 | 直到 6 年前

1

2

Shawn 6 年前

一秒钟多。您最初的JS regex是: "/^[\u00C0-\u00ff\s -\~]+$/"

Basic parts of regex:
"/..../" == signifies the start and stop of the Regex.
"^[...]" == signifies anything that is NOT in this group
"+" == signifies at least one of the previous
"$" == signifies the end of the string

Identifiers in the regex:
"\u00c0-\u00ff" == Unicode character range of Character 192 (Ã) 
                   to Character 255 (Ã¿). This is the Latin 1 
                   Extension of the Unicode character set.
"\s" == signifies a Space Character
" -\~" == signifies another identifier for a space character to the 
          (escaped) tilde character (~). This is ASCII 32-126, which
          includes the printable characters of ASCII (except the DEL
          character (127). This includes alpha-numerics amd most punctuation.

你可以试试这个:

<cfscript>
//http://www.asciitable.com/
//https://en.wikipedia.org/wiki/List_of_Unicode_characters
//https://en.wikipedia.org/wiki/Latin_script_in_Unicode


function charTest(k) {
  return 
    REfind("[^" 
      & chr(32) & "-" & chr(126) 
      & chr(192) & "-" & chr(255) 
      & "]",arguments.k) 
    ? "Please Use Latin Characters Only" 
    : "" 
  ;
}


// TESTS
writeDump(charTest("æµ")); // Not Latin
writeDump(charTest("test")); // All characters between 31 & 126
writeDump(charTest("Ã")); // Character 192 (in range)
writeDump(charTest("Ã ")); // Character 192 and Space
writeDump(charTest("     ")); // Space Characters
writeDump(charTest("12345")); // Digits ( character 48-57 )
writeDump(charTest("Ã°")); // Character 240 (in range) 
writeDump(charTest("â¿")); // Character 8511 (outside range)
writeDump(charTest(chr(199))); // CF Character (in range)
writeDump(charTest(chr(10))); // CF Line Feed Character (outside range)
writeDump(charTest(chr(1000))); // CF Character (outside range)

writeDump(charTest("
")); // CRLF (outside range)

writeDump(charTest(URLDecode("%00", "utf-8"))); // CF Null character (outside range)

//writeDump(asc("æµ"));
//writeDump(asc("test"));
//writeDump(asc("Ã"));
//writeDump(asc("Ã°"));
//writeDump(asc("â¿"));
</cfscript>

https://trycf.com/gist/05d27baaed2b8fc269f90c7c80a1aa82/lucee5?theme=monokai

正则表达式所做的就是查看输入字符串,如果没有找到介于 chr(192) chr(255) ,它将返回您选择的字符串,否则将不返回任何内容。

我认为您可以直接访问255以下的UNICODE字符。我得测试一下。

你需要像Javascript那样提醒这个函数吗?如果需要,只需输出1或0即可确定此函数是否实际找到了要查找的字符。