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| PerlMonks |
Re: Reading Reg Expby Ratazong (Monsignor) |
| on Aug 11, 2010 at 06:34 UTC ( [id://854222]=note: print w/replies, xml ) | Need Help?? |
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There are many resources on this in the tutorials-section. Another resource I find helpful is this online analyzer. It gives you at least a hint where to search for - e.g. in your second example it shows that the ?= is a ZeroWidthPositiveLookahead. Google it to gain deeper knowledge ;-) HTH, Rata
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