Hi, I am a novice in Perl and Regex, trying to encode some rules of Sanskrit grammar using Perl. I want to replace a sequence of two (a or â) with â. So I tried this code:

s/[aâ][aâ]/â/; I even tried this: s/[aâ]{2}/â/;

So I had to use the following, which works OK, but should be equivalent of the first:

s/([aâ]a|[aâ]â)/â/;

Please tell me what is wrong with the first expression!

In reply to Regex question by hnn

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