How to make a grammatic case insensitive?

[byron]

Hi, I was trying to parse a grammatic of SQL and I want it to be case
insensitive (like the actual SQL), except in the explicit strings
(literal strings). So I wasn't read anything about it in any of the
support pages and neither in this list.

Obviously I can pre-analyze the input but that will be less efficient
and I don't like it.

PD: I like the lepl, it think it's a great framework, very useful.

Thank for all,
Byron Morales

[andrew cooke]

Hi,

First, I'm really sorry about the delay here.  Your message seems to be a week old.  I just received a notification of message pending from Google, but perhaps I missed one a week ago.

There's nothing built-in (that I remember!), but you can do it by hand by defining a regexp like:

  select = Regexp('[Ss][Ee][Ll][Ee][Cc][Tt]')

Obviously that's tedious, but you can automate it by writing your own matcher (really, more of a matcher factory):

  def NoCase(text):

      return Regexp(''.join('[{0}{1}]'.format(c.lower(), c.upper()) for c in text)

(I'm just typing this blind, so it may not compile, but I hope you get the idea).

Cheers,

Andrew