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Check Variables for Let

As you may know we have a variable check for FileMaker script workspace for macOS in MBS FileMaker Plugin. This works fine for most scripts, but you may need to know a few pitfalls. Since the plugin reads what is in the script workspace window and FileMaker truncates long lines, it will not catch a variable mistyped in a very long line. When we read a calculation like this one:

 

Let([

// define some variables

$varDefined = 1; $secondVarDefined = 2]; $varDefined) 

 

The plugin sees it as

 

Let([ // define some variables $varDefined = 1; $secondVarDefined = 2]; $varDefined) 

 

We don't get line breaks, so we have no idea where the comment ends and thus we can't find mistyped variable there.

 

There has been a problem that not scanning Let() for variable definitions, we now allow you to add a comment in front of the Let() or custom function call to define the variables: Start with a // comment and add they keywords @variable, @parameter or @constant (or shorter @var, @param or @const), then add a new line and continue with the calculation.

comment and add they keywords @variable, @parameter or @constant (or shorter @var, @param or @const), then add a new line and continue with the calculation.

e.g.

 

// @var $varDefined, $secondVarDefined

Let([

// define some variables

$varDefined = 1; $secondVarDefined = 2]; $varDefined)

 

The plugin will recognize the comment and accept the variable even as we can't parse the Let statement due to missing line breaks.

 

Here is a test script showing various checking situations.

 

# you define a variable regularly

Set Variable [ $var1 ; Value: 1 ] 

# and use it

Set Variable [ $var2 ; Value: $var1 + 1 ] 

# now we define one via comment in Let()

Set Variable [ $test ; Value: 

// @var $varDefined, $secondVarDefined

Let([

// define some variables

$varDefined = 1; $secondVarDefined = 2]; $varDefined)

# or here in a comment line to define a variable set by custom function:

# @var $thirdVarDefined

Set Variable [ $test ; Value: SomeCustomFunction ] 

# or now with comment inline:

Set Variable [ $test ; Value: 

// @var $thirdVarDefined

SomeCustomFunction

# and use them

Set Variable [ $r ; Value: $varDefined + $secondVarDefined + $thirdVarDefined ] 

# If you don't declare it, we may catch it as an error:

Set Variable [ $test ; Value: Let([$NotDefined = 1]; 1) ] 

Set Variable [ $test ; Value: $testing + 1 ] 

# and this includes using an accent, which gives a different name:

Set Variable [ $test ; Value: $varDefíned + 1 ] 

 

Please try MBS FileMaker Plugin 13.5 pre-release to try this and let us know if you find a problem or just like this new feature.

Claris FileMaker Plugin
30 10 23 - 07:58