[SR-Users] Working with Variables.

[Alex Balashov]

On 10/27/2010 02:16 AM, dotnetdub wrote:

> Where is the best place to lookup documentation about working with
> variables.
>
> I come from the if len(x$)=y then
>
>                                      xxx
>                                      xxx
>                                      xxx
>
>                          End If
>
>
>   school!
>
> Looking for the best place to lookup documentation for checking
> characters, lengths of strings and removing or prepending stuff based
> on the results.

The best place to learn about types of variables and variable-related 
syntax and behaviour in general is the core cookbook:

   http://www.kamailio.org/dokuwiki/doku.php/core-cookbook:3.1.x

This also describes many matching operations, operators for 
prepending, etc.

More sophisticated string operations, such as selection of substrings, 
regular expression matching, component extraction, splitting into 
tokens by a delimeter, etc. are known as "transformations."  They can 
be applied to most variables, and an examination of them is found here:

   http://www.kamailio.org/dokuwiki/doku.php/transformations:3.1.x

If the question is more about which variables are defined/exposed in 
certain situations, the pseudovariables doc is most appropriate:

   http://www.kamailio.org/dokuwiki/doku.php/pseudovariables:3.1.x

-- Alex
-- 
Alex Balashov - Principal
Evariste Systems LLC
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