|ansi_colored_diff $string, $changed_string, $options_hash;||
This method compares $string with $changed_string
and returns a string for an output on an ANSI terminal.
Removed characters from $string are shown by default with a red background,
while added characters to $changed_string are shown by default with a green background
(the unchanged characters are shown with the default values for the terminal).
The $options_hash allows you to set the colors for the output and the context to be shown. The variable is a reference to a hash with the optional keys: u for the color of the unchanged parts, -, + for the color of the removed and the added parts, context for a regexp specifying the context that shall be shown before and after a changed part and gap for the string that shall be shown between the contexts of two changings. The default values for the options are:
The specified colors must follow the conventions for the colored method of Term::ANSIColor. Please read its documentation for details.
The specified context must be a valid regexp, constructed with the qr/.../ operator (or alternatively a string defining a valid regexp). Internal the context around a changing is created with matching the preceding substring with /($context_re)$ and the succeeding substring with ^($context_re). That is important to know if you want to work with backreferences. As an additional group encloses your regexp pattern, the first of your own defined subgroup is in $2 instead of $1. (Thats not very nice, but still better than paying the price of using $&).
The gap parameter describes how to fill the gap between two shown changings in their context. Here are some examples of these parameters:
None by default.
Janek Schleicher, <email@example.com>
Copyright 2003 by Janek Schleicher
This library is free software; you can redistribute it and/or modify it under the same terms as Perl itself.
|perl v5.20.3||SHOWDIFF (3)||2003-05-06|