Text::Template::Preprocess(3pm) - phpMan

Text::Template::Preprocess(3pm)User Contributed Perl DocumentationText::Template::Preprocess(3pm)

NAME
       Text::Template::Preprocess - Expand template text with embedded Perl

VERSION
       version 1.58

SYNOPSIS
        use Text::Template::Preprocess;

        my $t = Text::Template::Preprocess->new(...);  # identical to Text::Template

        # Fill in template, but preprocess each code fragment with pp().
        my $result = $t->fill_in(..., PREPROCESSOR => \&pp);

        my $old_pp = $t->preprocessor(\&new_pp);

DESCRIPTION
       "Text::Template::Preprocess" provides a new "PREPROCESSOR" option to "fill_in".  If the
       "PREPROCESSOR" option is supplied, it must be a reference to a preprocessor subroutine.
       When filling out a template, "Text::Template::Preprocessor" will use this subroutine to
       preprocess the program fragment prior to evaluating the code.

       The preprocessor subroutine will be called repeatedly, once for each program fragment.
       The program fragment will be in $_.  The subroutine should modify the contents of $_ and
       return.  "Text::Template::Preprocess" will then execute contents of $_ and insert the
       result into the appropriate part of the template.

       "Text::Template::Preprocess" objects also support a utility method, "preprocessor()",
       which sets a new preprocessor for the object.  This preprocessor is used for all
       subsequent calls to "fill_in" except where overridden by an explicit "PREPROCESSOR"
       option.  "preprocessor()" returns the previous default preprocessor function, or undefined
       if there wasn't one.  When invoked with no arguments, "preprocessor()" returns the
       object's current default preprocessor function without changing it.

       In all other respects, "Text::Template::Preprocess" is identical to "Text::Template".

WHY?
       One possible purpose:  If your files contain a lot of JavaScript, like this:

               Plain text here...
               { perl code }
               <script language=JavaScript>
                     if (br== "n3") {
                         // etc.
                     }
               </script>
               { more perl code }
               More plain text...

       You don't want "Text::Template" to confuse the curly braces in the JavaScript program with
       executable Perl code.  One strategy:

               sub quote_scripts {
                 s(<script(.*?)</script>)(q{$1})gsi;
               }

       Then use "PREPROCESSOR => \&quote_scripts".  This will transform

SEE ALSO
       Text::Template

SOURCE
       The development version is on github at
       <https://https://github.com/mschout/perl-text-template> and may be cloned from
       <git://https://github.com/mschout/perl-text-template.git>

BUGS
       Please report any bugs or feature requests on the bugtracker website
       <https://github.com/mschout/perl-text-template/issues>

       When submitting a bug or request, please include a test-file or a patch to an existing
       test-file that illustrates the bug or desired feature.

AUTHOR
       Mark Jason Dominus, Plover Systems

       Please send questions and other remarks about this software to
       "mjd-perl-template+@plover.com"

       You can join a very low-volume (<10 messages per year) mailing list for announcements
       about this package.  Send an empty note to "mjd-perl-template-request AT plover.com" to join.

       For updates, visit "http://www.plover.com/~mjd/perl/Template/".

COPYRIGHT AND LICENSE
       This software is copyright (c) 2013 by Mark Jason Dominus <mjd AT cpan.org>.

       This is free software; you can redistribute it and/or modify it under the same terms as
       the Perl 5 programming language system itself.

perl v5.30.0                                2019-11-10            Text::Template::Preprocess(3pm)

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