Working with named groups in re module
fredrik at pythonware.com
Wed Jan 10 16:18:59 CET 2007
Neil Cerutti wrote:
> A found some clues on lexing using the re module in Python in an
> article by Martin L÷wis.
> Here, each alternative in the regular expression defines a
> named group. Scanning proceeds in the following steps:
> 1. Given the complete input, match the regular expression
> with the beginning of the input.
> 2. Find out which alternative matched.
you can use lastgroup, or lastindex:
there's also a "hidden" ready-made scanner class inside the SRE module
that works pretty well for simple cases; see:
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