bc518174
 王天杨
提交两个项目文件
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'use strict';
module.exports = string => {
if (typeof string !== 'string') {
throw new TypeError('Expected a string');
}
// Escape characters with special meaning either inside or outside character sets.
// Use a simple backslash escape when it’s always valid, and a \unnnn escape when the simpler form would be disallowed by Unicode patterns’ stricter grammar.
return string
.replace(/[|\\{}()[\]^$+*?.]/g, '\\$&')
.replace(/-/g, '\\x2d');
};
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