Basic HTML version of Foils prepared April 16,1996

Foil 46 Minimal Matching in Regular Expressions

From Perl5 and Advanced Perl4 Features Computational Science for Information Age Course CPS616 Material -- April 16,1996. by Geoffrey C. Fox
1 The default pattern matching in Perl is greedy or maximal size matching
2 There is now the ? option to designate the selection of match of minimum size
3 * is replaced by *? to specify minimal match 0 or more times
4 +? represents minimal match 1 time
5 ?? represents minimal match 0 or 1 times
6 {n}? minimal match exactly n times
7 {n,}? minimal match at least n times
8 {n,m}? minimal match At least n but not more than m times
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