FRS Indexing script: Invalid procedure call or argument (line x, pos y)

Symptoms

Invalid procedure call or argument in the Indexing script.

Cause

Mismatch of data types during logical operation.

Resolution

Although indexing attributes have a lot of varieties of their datatypes so it is important to keep in mind that these types can be incompatible with each other. 

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For example, it is impossible to assign a string value to the attribute of Date type.

The workflow administrator should be aware of typecasting because it is missing in built-in FineReader server interfaces. 

The case of the mentioned example can be outplayed by the following piece of code with the usage of the JScript class Date:

//function casts string 12/01/2020 to its date value
function strToDate(S){
  DMY = S.split('/');  //or any other separator in the line
  var goDate = new Date(Number(DMY[2]), Number(DMY[1]-1), Number(DMY[0]));//format of JS class "Date" is YYYY-MM-DD,in result xml you will see it as "DD-MM-YYYY"
  return goDate;
}

 

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