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Paketbeschreibung


Paketnamelibregexp-assemble-perl
BeschreibungAssemble multiple Regular Expressions into a single RE
Archiv/RepositoryOffizielles Debian Archiv squeeze (main)
Version0.34-3
Sektionperl
Prioritätoptional
Installierte Größe292 Byte
Hängt ab vonperl
Empfohlene Pakete
PaketbetreuerXavier Guimard
Quelle
Paketgröße89952 Byte
Prüfsumme MD5584e197ef8503e1134f18e5edc658cec
Prüfsumme SHA1c8d2f0821b91d38ef8a410c67f47a302e756741f
Prüfsumme SHA2566affa88bb8566ae36acc07827efe57632296bf9bb8b8f331a1a8c5fce8c41192
Link zum Herunterladenlibregexp-assemble-perl_0.34-3_all.deb
Ausführliche BeschreibungRegexp::Assemble takes an arbitrary number of regular expressions and assembles them into a single regular expression (or RE) that matches all that the individual REs match. . As a result, instead of having a large list of expressions to loop over, a target string only needs to be tested against one expression. This is interesting when you have several thousand patterns to deal with. Serious effort is made to produce the smallest pattern possible. . It is also possible to track the original patterns, so that you can determine which, among the source patterns that form the assembled pattern, was the one that caused the match to occur. . You should realise that large numbers of alternations are processed in perl's regular expression engine in O(n) time, not O(1). If you are still having performance problems, you should look at using a trie. Note that Perl's own regular expression engine will implement trie optimisations in perl 5.10 (they are already available in perl 5.9.3 if you want to try them out). Regexp::Assemble will do the right thing when it knows it's running on a trie'd perl. (At least in some version after this one).


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