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Mixin::Linewise::Readers(3) User Contributed Perl Documentation Mixin::Linewise::Readers(3)

NAME

Mixin::Linewise::Readers - get linewise readers for strings and filenames

VERSION

version 0.111

SYNOPSIS

  package Your::Pkg;
  use Mixin::Linewise::Readers -readers;
  sub read_handle {
    my ($self, $handle) = @_;
    LINE: while (my $line = $handle->getline) {
      next LINE if $line =~ /^#/;
      print "non-comment: $line";
    }
  }

Then:

  use Your::Pkg;
  Your::Pkg->read_file($filename);
  Your::Pkg->read_string($string);
  Your::Pkg->read_handle($fh);

PERL VERSION

This module should work on any version of perl still receiving updates from the Perl 5 Porters. This means it should work on any version of perl released in the last two to three years. (That is, if the most recently released version is v5.40, then this module should work on both v5.40 and v5.38.)

Although it may work on older versions of perl, no guarantee is made that the minimum required version will not be increased. The version may be increased for any reason, and there is no promise that patches will be accepted to lower the minimum required perl.

EXPORTS

"read_file" and "read_string" are exported by default. Either can be requested individually, or renamed. They are generated by Sub::Exporter, so consult its documentation for more information.

Both can be generated with the option "method" which requests that a method other than "read_handle" is called with the created IO::Handle.

If given a "binmode" option, any "read_file" type functions will use that as an IO layer, otherwise, the default is "utf8_strict".

  use Mixin::Linewise::Readers -readers => { binmode => "raw" };
  use Mixin::Linewise::Readers -readers => { binmode => "encoding(iso-8859-1)" };

read_file

  Your::Pkg->read_file($filename);
  Your::Pkg->read_file(\%options, $filename);

If generated, the "read_file" export attempts to open the named file for reading, and then calls "read_handle" on the opened handle.

An optional hash reference may be passed before $filename with options. The only valid option currently is "binmode", which overrides any default set from "use" or the built-in "utf8_strict".

Any arguments after $filename are passed along after to "read_handle".

read_string

  Your::Pkg->read_string($string);
  Your::Pkg->read_string(\%option, $string);

If generated, the "read_string" creates a handle on the given string, and then calls "read_handle" on the opened handle. Because handles on strings must be octet-oriented, the string must contain octets. It will be opened in the default binmode established by importing. (See "EXPORTS", above.)

Any arguments after $string are passed along after to "read_handle".

Like "read_file", this method can take a leading hashref with one valid argument: "binmode".

AUTHOR

Ricardo SIGNES <cpan@semiotic.systems>

COPYRIGHT AND LICENSE

This software is copyright (c) 2008 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.

2023-01-02 perl v5.38.2