Text::Markup::Cmd - Tools for external commands

       David E. Wheeler <david@justatheory.com>

       Copyright (c) 2012-2024 David E. Wheeler. Some Rights Reserved.

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

perl v5.38.2                                       2024-03-03                             Text::Markup::Cmd(3pm)

       Text::Markup::Cmd provides tools for Text::Markup parsers that depend on external commands, such as
       Text::Markup::Rest and Text::Markup::AsciiDoctor. Will mainly be of interest to those adding a new parser
       with such a dependency.

       InterfaceExportedFunctions"WIN32"

         my $exe = 'nerble' . (WIN32 ? '.exe' : '');

       Constant indicating whether the current runtime environment (OS) is Windows.

       "find_cmd"

         my $cmd = find_cmd(
           ['nerble' . (WIN32 ? '.exe' : ''), 'nerble.rb'],
           '--version',
       );

       Searches the path for one or more named commands. Returns the first command to be found in the path and
       which executes with the specified command line options without error. The caller must specify OS-
       appropriate spellings of the commands.

       "exec_or_die"

         exec_or_die(
             qq{Missing required Python "docutils" module},
             $PYTHON, '-c', 'import docutils',
         );

       Executes a command and its arguments. Dies with the error argument if the command fails.

       "open_pipe"

         my $fh = open_pipe(qw(nerble --as-html input.nerb));

       Executes a command and its arguments and returns a file handle opened to its "STDOUT". Dies if the
       command fails.

       Text::Markup::Cmd - Tools for external commands

         use Text::Markup::Cmd;
         my $fh = open_pipe(qw(perl -V));