Re: •Re: Parse::RecDescent and mini-language parsing

Wow, this certainly seems more efficient, I'll start messing around with it and see what I can come up with. Thanks!

My code doesn't have bugs, it just develops random features.

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Comment on Re: •Re: Parse::RecDescent and mini-language parsing

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•Re: Re: •Re: Parse::RecDescent and mini-language parsing by merlyn (Sage) on Mar 31, 2003 at 00:39 UTC
And if you wanted 'and' to be higher precedence than 'or' and 'xor', so as not to confuse the rest of us: `expression: <leftop: term termop term> termop: 'or' \| 'xor' term: <leftop: factor factorop factor> factorop: 'and' factor: '(' expression ')' \| condition condition: field comparison value field: '<' timethingy '>' timethingy: 'DAY' \| 'WEEK' comparison: '<=' \| '<' \| '=' \| '>=' \| '>' \| '!=' value: /\d+/` [download] -- Randal L. Schwartz, Perl hacker Be sure to read my standard disclaimer if this is a reply.	[reply] [d/l]

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•Re: Re: •Re: Parse::RecDescent and mini-language parsing
by merlyn (Sage) on Mar 31, 2003 at 00:39 UTC

expression: <leftop: term termop term>
termop: 'or' | 'xor'
term: <leftop: factor factorop factor>
factorop: 'and'
factor: '(' expression ')' | condition
condition: field comparison value
field: '<' timethingy '>'
timethingy: 'DAY' | 'WEEK'
comparison: '<=' | '<' | '=' | '>=' | '>' | '!='
value: /\d+/
[download]

-- Randal L. Schwartz, Perl hacker
Be sure to read my standard disclaimer if this is a reply.

[reply]
[d/l]