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dlclark avatar dlclark commented on May 31, 2024

This should work:
exp := regexp2.MustCompile("[\\u{00061}-\\u{0007A}]", regexp2.ECMAScript|regexp2.Unicode)

The original example doesn't work for a few reasons:

  1. Go requires slashes to be escaped in double-quoted strings. \u will be interpreted by the compiler doesn't compile in this context. \\u fixes this
  2. the regex [\u{00061}-\u{0007A}] doesn't work in basic ECMAScript. You must enable Unicode parsing for it to work (the "u" option). This is the same in regexp2--you need to send ECMAScript|Unicode as options for this unicode character parsing to work.

from regexp2.

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