COBOL - Misinterpretation by LS when using the : character as a parameter delimiter in a parenthesized expression in a copybook

[FALLAI-Denis]

Development environment used

• Z Open Editor version: 4.4.0
• Editor Platform
  • Visual Studio Code
  • Red Hat CodeReady Workspaces
  • Eclipse Che
  • Standalone Theia
• Editor Platform Version: 1.93.0
• Operating System: Windows 10 22H2
• Java Version: 1.17
• Related to RSE API?
  • RSE API Plugin version:
  • Zowe CLI version:
  • Node.js version:
• Logs attached: no

Problem Description

Using the traditional character : in a copybook, to delimit a parameter within a parenthesized expression, causes an interpretation error at the Language Server level.
Maybe in this case the Language Server interprets the character : as the mark of a reference modification .

Observed behavior

Since the "modification reference" syntax only requires one character : , while the parameter syntax requires an even number of characters :, this might allow the Language Server to disambiguate the parenthesized expression.

Thanks.