inhahe wrote:
Is there any way to make case-insensitive tokens? I mean, other than
specifying it as [Bb][Ll][Aa][Hh] etc..
I'm gathering that lexers combine all regexes into one single regex, so there's
no way to do case-insensitivity?
I never had this problem, so I don't know.
The manual (lexer section) should say something about it, if it is supported.
The simplest approach I can think of, is to write a function that converts a keyword string to the
above form, something like
>>> import string
>>> keyword = "abc-def"
>>> ''.join('[%s%s]' % (x, x.upper()) if x in string.lowercase else x for x in
keyword)
'[aA][bB][cC]-[dD][eE][fF]'
If it's not possible with ply, does anyone know if it can be done with
pyparsing or ANTLR?
You should ask that at other mailing lists probably.
Albert
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