adrian

adrian

Regex and unicode returning wrong indexes

Hello,

I need to find the position of a match using Regex.run on a text with unicode characters.

This is an example:

iex> Regex.run(~r/x/u, "áéíóúx", return: :index)
[{10, 1}]

When te expected output should be: [{5, 1}]

Shouldn’t the unicode modificator take care of this? how could I get the right result?

Thanks!

Most Liked

NobbZ

NobbZ

The index returned is the byte index, and this is perfect for further processing it in parallel to the original input, eg, when cutting the matched substring, as indexing per byte is O(1), per character/glyph is O(n).

idi527

idi527

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