mlightner-enhanced_regexp

Enhanced Regular Expressions

Author: [e-mail]

This package extends the functionality of Regexp objects by adding methods to create copies of them with modified options. It also allows for toggling of "inverted" status on a regexp object.

Example:

require 'rubygems' require 'enhanced_regexp' irb> exp = /test/i => /test/i irb> exp.case_sensitive? => true irb> exp2 = exp.without_case
=> /test/ irb> exp2.case_sensitive?
=> false irb> mlx = /test.*multiline/ => /test.*multiline/ irb> "test\n multiline".match(mlx) => nil irb> "test\n multiline".match(mlx.with_multiline) => #MatchData:0xb7c0c004 irb> "test\n multiline".match(mlx.with_multiline).inspect => "#MatchData:0xb7c0725c" irb> invx = /hello/i.invert!
=> /hello/i irb> invx.inverted? => true irb> "oh hello".match(invx) => false irb> "oh hai".match(invx)
=> true irb> invx.uninvert! => /hello/i irb> "oh hello".match(invx) => #MatchData:0xb7bedac8

NOTES:

• With inversion, you can toggle it on any given regular expression without creating a new one.
• When changing other option values, a new Regexp will ge generated and returned as the value of the call to regex.with_option (or without_option). This new regular expression will be identical to the original aside from the requested option change.