[Tutor] Regular expression on python

[Alan Gauld]

On 14/04/15 13:21, Steven D'Aprano wrote:

> although I would probably want to write it out in verbose mode just in
> case the requirements did change:
>
>
> r"""(?x)    (?# verbose mode)
>      (.+?):  (?# capture one or more character, followed by a colon)
>      \s+     (?# one or more whitespace)
>      (\d+)   (?# capture one or more digits)
>      (?:     (?# don't capture ... )
>        \s+       (?# one or more whitespace)
>        \(.*?\)   (?# anything inside round brackets)
>        )?        (?# ... and optional)
>      \s*     (?# ignore trailing spaces)
>      """
>
> That's a hint to people learning regular expressions: start in verbose
> mode, then "de-verbose" it if you must.

New one on me. Where does one find out about verbose mode?
I don't see it in the re docs?

I see an re.X flag but while it seems to be similar in purpose
yet it is different to your style above (no parens for example)?

-- 
Alan G
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