DefineVariables ( global_boolean )

stores all passed variables as local ($) or global ($$) variables

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Jeff Drake - Show more from this author
Drakeling Technologies

Sample input:

Include the script step:

Set Variable [ $_ ; Value: DefineVariables ( True ) ]

…in a script with parameter:

List (
"customerID:15" ;
"orderID:" & 26 ;
"description:" & Quote ( "purchased by customer on¶date\: 28 Dec 2009" )
) //end List

Sample output:

$_ will be empty, but the following variables are set:

$$customerID = 15
$$orderID = 26
$$description = "purchased by customer on¶date: 28 Dec 2009"

Function definition: (Copy & paste into FileMaker's Edit Custom Function window)

/*
=======================================================
    DefineVariables ©2006, 2007, 2008, 2014, 2015 Drakeling Technologies.
    Creation: 2006 by Jeff Drake
    Modification: 7 August 2015 by Jeff Drake

    Purpose: Create local ($) or global ($$) variables from a return-delimited list of subparameters,
       as specified in the script parameter and/or result. If the global_boolean is set to True, the function
       will create global ($$) variables; if it is set to False, the function will create local ($) variables.


    Syntax:

    List (
       "VariableName1:Value1" ;
       "VariableName2:Value2" ;
        …
       "VariableNameN:ValueN"
    ) //end List

    For ease of reading, the subparameters may be declared in separate strings, e.g.

    "VariableName:" & "ValueName"


    Dependencies:
     • DefineVariables_
     • TrimFrom

    Warning: if any variable contains a multiline value in which any subsequent line
     begins with a single word followed by a colon, said colon must be preceded by a
     backslash, e.g. "Four score and seven years ago, our fathers brought forth¶" &
     "First\\: a new nation".
=======================================================
*/


Let ( [
         variableDef = "Let ( [ " & DefineVariables_ ( global_boolean ) & " ] ; " & Quote ( $null ) & " )" ;
         error = EvaluationError ( Evaluate( variableDef ) )

] ; //end define Let

   If (

      error = 0;

      Evaluate ( variableDef ) ;

      "Error:" & error

   ) //end If

) //end Let

Purpose: Create local ($) or global ($$) variables from a return-delimited list of subparameters,
as specified in the script parameter and/or result. If the global_boolean is set to True, the function
will create global ($$) variables; if it is set to False, the function will create local ($) variables.

Syntax:

List (
"VariableName1:Value1" ;
"VariableName2:Value2" ;
…
"VariableNameN:ValueN"
) //end List

For ease of reading, the subparameters may be declared in separate strings, e.g.

"VariableName:" & "ValueName"

Dependencies:
• DefineVariables_
• TrimFrom

Warning: if any variable contains a multiline value in which any subsequent line
begins with a single word followed by a colon, said colon must be preceded by a
backslash, e.g. "Four score and seven years ago, our fathers brought forth¶" &
"First\\: a new nation".

Note: includes dependencies to DefineVariables_ and TrimFrom custom functions.

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DefineVariables ( global_boolean )

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