== Rules for target masks ==

For more flexible manupulations with files you may use rules for target masks:

 * \1..\9 transform into groups;
 * $!{1}..$!{64} like previous;
 * \0 и $!{0} transform into full source filename.

Symbol '\' used for escaping other special symbols. For example, '\\' mean backslash (\) and '\*' mean just asterisk (*).

=== Examples ===

For all examples we use example files:
{{{
bar.tar.gz
foo.tar.bz2
some_file1.gz
some_file2.bz2
}}}

==== Example 1 ====
 * 'Source mask:' is {{{*.tar.*}}}
 * 'To:' is {{{\1.t\2}}}

Result:
{{{
bar.tgz
foo.tbz2
some_file1.gz
some_file2.bz2
}}}

==== Example 2 ====
 * 'Source mask:' is {{{?*}}}
 * 'To:' is {{{\1__\1\2}}}

Result:
{{{
b__bar.tar.gz
f__foo.tar.bz2
s__some_file1.gz
s__some_file2.bz2
}}}