NAME¶
Number::Tolerant::Type - a type of tolerance
VERSION¶
version 1.703
SYNOPSIS¶
METHODS¶
valid_args¶
my @args = $type_class->valid_args(@_);
If the arguments to "valid_args" are valid arguments for this type of
tolerance, this method returns their canonical form, suitable for passing to
"construct". Otherwise this method returns false.
construct¶
my $object_guts = $type_class->construct(@args);
This method is passed the output of the "valid_args" method, and
should return a hashref that will become the guts of a new tolerance.
parse¶
my $tolerance = $type_class->parse($string);
This method returns a new, fully constructed tolerance from the given string if
the given string can be parsed into a tolerance of this type.
number_re¶
my $number_re = $type_class->number_re;
This method returns the regular expression (as a "qx" construct) used
to match number in parsed strings.
normalize_number¶
my $number = $type_class->normalize_number($input);
This method will decide whether the given input is a valid number for use with
Number::Tolerant and return it in a canonicalized form. Math::BigInt objects
are returned intact. Strings holding numbers are also returned intact. Strings
that appears to be fractions are converted to Math::BigRat objects.
Anything else is considered invalid, and the method will return false.
variable_re¶
my $variable_re = $type_class->variable_re;
This method returns the regular expression (as a "qr" construct) used
to match the variable in parsed strings.
When parsing "4 <= x <= 10" this regular expression is used to
match the letter "x."
AUTHOR¶
Ricardo Signes <rjbs@cpan.org>
COPYRIGHT AND LICENSE¶
This software is copyright (c) 2004 by Ricardo Signes.
This is free software; you can redistribute it and/or modify it under the same
terms as the Perl 5 programming language system itself.