On 6/3/05, Jeff 'japhy' Pinyan <[EMAIL PROTECTED]> wrote: > On Jun 2, Siegfried Heintze said: > > > How do I write a pattern for removing roman numerals? The first 10 is > > enough. > > Well, the first ten roman numerals are: > > I, II, III, IV, V, VI, VII, VIII, IX, X > > Just put those in a regex. > > s/\b(I|II|...)\b//g; > > would remove roman numerals, provided they aren't touching any word > characters. > > -- > Jeff "japhy" Pinyan % How can we ever be the sold short or
This isn't going to get them all; it says to match (between word boundaries) "I" or "II" or any three non-newlines. So it will catch "I", "II", "III", and "VII". It will also catch "I" where it's a pronoun (assuming this is an english text file), and any three-letter words/constructs. I would trysomething like this: s/\bI(?:I+|V|X)?|VI*|XI*\b// Note that this will "I". You may want to go through and get those by hand instead if there is any chance of "I" having another function. If you can identify the context where the numerals appear, you can make it easier on yourself. HTH, -- jay -------------------- daggerquill [at] gmail [dot] com http://www.engatiki.org -- To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] <http://learn.perl.org/> <http://learn.perl.org/first-response>
