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Text::Query::Solve.3pm

NAME

Text::Query::Solve - Base class for query resolution

SYNOPSIS

     package Text::Query::SolveSource;
 
 
 

     use Text::Query::Parse;
 
 
 

     use vars qw(@ISA);
 
 
 

     @ISA = qw(Text::Query::Solve);
 
 
 

DESCRIPTION

This module provides a virtual base class for query resolution.

It defines the "match" and "matchscalar" method that is called by the "Text::Query" object to apply a query on a data source.

METHODS

match (EXPR [TARGET])

If "TARGET" is a scalar, "match" returns a true value if the data source specified by "TARGET" matches the "EXPR" query expression. If "TARGET" is not given, the match is made against $_.

If "TARGET" is an array, "match" returns a (possibly empty) list of all matching elements. If the elements of the array are references to sub- arrays, the match is done against the first element of each sub-array. This allows arbitrary information (e.g. filenames) to be associated with each data source to match.

If "TARGET" is a reference to an array, "match" returns a reference to a (possibly empty) list of all matching elements.

matchscalar (EXPR [TARGET])

Behaves just like "MATCH" when "TARGET" is a scalar or is not given.

SEE ALSO

Text::Query(3)

AUTHORS

Eric Bohlman (ebohlman@netcom.com)

Loic Dachary (loic@senga.org)