الگو:Chop head and tail/doc

{{Chop head and tail|<string>|<number>}}

This template removes <number> characters from the start and end of <string>.

{{Chop head and tail|12345654321|3}} gives الگو:Chop head and tail.

This template can be used to "unlink" a linked parameter.

{{Chop head and tail|[[Einstein]]|2}} results in الگو:Chop head and tail.

Because the default value of <number> is 2, this can be shortened to {{Chop head and tail|[[Einstein]]}}.

Expensive.
When used on strings with characters that carry a meaning in wiki-layout, this template will interpret the character as a layout instruction (bugzilla:12974). For example, {{Chop head and tail|[[123;456]]}} renders as
الگو:Chop head and tail
Supports the character set as defined by {{Str index/getchar}}, so that e.g. {{Chop head and tail|[[Nürnberg]]}} renders correctly as الگو:Chop head and tail. However, not all characters are in this set.