Unclear about verbose regex syntax (excaping whitespace)

Tim Chase python.list at tim.thechases.com
Tue Jan 10 12:34:36 EST 2012

On 01/10/12 10:49, Roy Smith wrote:
> The docs for re.VERBOSE say, "Whitespace within the pattern is
> ignored, except when [...] preceded by an unescaped
> backslash".  It's unclear exactly what that means.  If my
> pattern is:
> <backslash><space><space>
> is the second space considered to be preceded by a backslash,
> and thus taken literally, or does the backslash only apply to
> the first<space>?  I suspect the latter, but it's somewhat
> ambiguous.

You're right (easily testable) in your suspicions that the second 
space is ignored in this case.  I suppose the documentation could 
be tweaked to read "immediately preceded".


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