NAME re::engine::TRE - TRE regular expression engine VERSION version 0.09 SYNOPSIS use re::engine::TRE max_cost => 1; if ("A pearl is a hard object produced..." =~ /\(Perl\)/i) { say $1; # "pearl" } DESCRIPTION Replaces Perl's regex engine in a given lexical scope with POSIX regular expressions provided by the TRE regular expression library. tre-0.8.0 is shipped with this module. PRAGMA OPTIONS * cost_ins: The default cost of an inserted character, that is, an extra character in string (default: 1). * cost_del: The default cost of a deleted character, that is, a character missing from string (default: 1). * cost_subst: The default cost of a substituted character (default: 1). * max_cost: The maximum allowed cost of a match. If this is set to zero, an exact matching is searched for (default: 0). * max_ins: Maximum allowed number of inserted characters (default: unspecified). * max_del: Maximum allowed number of deleted characters (default: unspecified). * max_subst: Maximum allowed number of substituted characters (default: unspecified). * max_err: Maximum allowed number of errors (inserts + deletes + substitutes; default: unspecified). Set any value to -1 to represent "unspecified, but very high". REFERENCES Algorithm & Implementation * Bitap algorithm * Introduction to the TRE regexp matching library. Salvaged several parts from * re::engine::PCRE (recent Perl compatibility) * re::engine::RE2 (parameter passing) * String::Approx (tests for approximate matching) AUTHOR Ævar Arnfjörð Bjarmason COPYRIGHT AND LICENSE This software is copyright (c) 2014 by Ævar Arnfjörð Bjarmason. This is free software; you can redistribute it and/or modify it under the same terms as the Perl 5 programming language system itself.