local str = {}



---------------------------------------------------

--  Function: echo

--

--  This function returns the contents of the target string.

--

--  Usage:

--      {{#invoke:Echo|echo|target_string|}}

--      OR

--      {{#invoke:Echo|echo|s=target_string}}

--

-- Parameters

--      s: The string whose contents to display

--

--  If invoked using named parameters, Mediawiki will automatically

--  remove any leading/trailing whitespace from the target string.  

 

function str.echo( frame )

    local new_args = str._getParameters( frame.args, {'s'} );

    local s = new_args's' or '';

    return s

end



---------------------------------------------------

--  Function: table

--

--  This function returns a test table in wikimarkup.



function str.table( frame )

    local str = [[{| class="wikitable"

|-

! Header text !! Header text !! Header text

|-

| Example || Example || Example

|-

| Example || Example || Example

|-

| Example || Example || Example

|}]]



end



-----------------------------------------

--  Helper function that populates the argument list given that user

--  may need to use a mix of named and unnamed parameters.  This is

--  relevant because named parameters are not identical to unnamed

--  parameters due to string trimming, and when dealing with strings,

--  there can be a need to either preserve or remove that whitespace

--  depending on the application.

 

function str._getParameters( frame_args, arg_list )

    local new_args = {};

    local index = 1;

    local value;

 

    for i,arg in ipairs( arg_list ) do

        value = frame_argsarg

        if value == nil then

            value = frame_argsindex];

            index = index + 1;

        end

        new_argsarg = value;

    end

 

    return new_args;

end

 

return str