CHECK

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# CHECK

`CHECK`

This command is used to check if the syntax of the source code currently in the editor work area contains any errors.

Mode | Reaction
--- | ---
Online | Syntax checking stops when a syntax error is detected, and the source-code line that contains the error is marked with `E` in the corresponding editor.
Batch | Syntax checking continues until all statements have been checked, and all errors detected are included in the output listing.

Note
Syntax checking is also performed as part of the `RUN`, `STOW`, `CATALOG` and `CATALL` commands.

See also Natural Compiler in Natural System Architecture.