我的代码无法检测运算符和非英语字符的使用:
const OPERATOR_REGEX = new RegExp(
/(?!\B"[^"|“|”]*)\b(and|or|not|exclude)(?=.*[\s])\b(?![^"|“|”]*"\B)/,
'giu'
);
const query1 = '(Java or "化粧" or 化粧品)';
const query2 = '(Java or 化粧 or 化粧品)';
console.log(query1.split(OPERATOR_REGEX));
console.log(query2.split(OPERATOR_REGEX));
https://codepen.io/thewebtud/pen/vYraavd?editors=1111
而相同的代码使用 unicode 标志成功检测 regex101.com 上的所有运算符: https://regex101.com/r/FC84BH/1
如何解决 JS 的这个问题?
最佳答案
请记住
-
\b
(wordord boundary)可以写为(?:(?<=^)(?=\w)|(?<=\w)(?=$)|(?<=\W)(?=\w)|(?<=\w)(?=\W))
和 -
\B
(non-word boundary)可以写成(?:(?<=^)(?=\W)|(?<=\W)(?=$)|(?<=\W)(?=\W)|(?<=\w)(?=\w))
并且支持 Unicode \w
模式是[\p{Alphabetic}\p{Mark}\p{Decimal_Number}\p{Connector_Punctuation}\p{Join_Control}]
(参见 Replace certain arabic words in text string using Javascript ),这是 ECMAScript 2018+ 解决方案:
const w = String.raw`[\p{Alphabetic}\p{Mark}\p{Decimal_Number}\p{Connector_Punctuation}\p{Join_Control}]`;
const nw = String.raw`[^\p{Alphabetic}\p{Mark}\p{Decimal_Number}\p{Connector_Punctuation}\p{Join_Control}]`;
const uwb = String.raw`(?:(?<=^)(?=${w})|(?<=${w})(?=$)|(?<=${nw})(?=${w})|(?<=${w})(?=${nw}))`;
const unwb = String.raw`(?:(?<=^)(?=${nw})|(?<=${nw})(?=$)|(?<=${nw})(?=${nw})|(?<=${w})(?=${w}))`;
const OPERATOR_REGEX = new RegExp(
String.raw`(?!${unwb}"[^"“”]*)${uwb}(and|or|not|exclude)(?=.*\s)${uwb}(?![^"“”]*"${unwb})`,
'giu'
);
const query1 = '(Java or "化粧" or 化粧品)';
const query2 = '(Java or 化粧 or 化粧品)';
console.log(query1.split(OPERATOR_REGEX));
console.log(query2.split(OPERATOR_REGEX));
关于javascript - unicode 标志不适用于 Javascript 中的 RegEx,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/74611855/