[asterisk-dev] [Code Review] 4313: func_config: Add ability to retrieve specific occurrence of a variable

[George Joseph]

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https://reviewboard.asterisk.org/r/4313/
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Review request for Asterisk Developers.


Repository: Asterisk


Description
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I guess nobody uses templates with AST_CONFIG because today if you have a context that inherits from a template and you call AST_CONFIG on the context, you'll get the value from the template even if you've overridden it in the context.  This is because AST_CONFIG only gets the first occurrence which is always from the template.

This patch adds an optional 'index' parameter to AST_CONFIG which lets you specify the exact occurrence to retrieve, or '-1' to retrieve the last.  The default behavior is the current behavior.

>From the new help...

[Syntax]
AST_CONFIG(config_file,category,variable_name[,index])

[Arguments]
index
    If there are multiple variables with the same name, you can specify
    '0' for the first item (default), '-1' for the last item, or any other
    number for that specific item.  '-1' is useful when the variable is derived
    from a template and you want the effective value (the last occurrence),
    not the value from the template (the first occurrence).


Diffs
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  branches/13/tests/test_config.c 430163 
  branches/13/funcs/func_config.c 430163 

Diff: https://reviewboard.asterisk.org/r/4313/diff/


Testing
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Added a unit test to test_config which passes of course.


Thanks,

George Joseph

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