In case of grammar error, catch the error and print it to an error file. Error file is common to all sub-sequences in case of split. File access is managed by blocking locks. Lock will force a process to wait for file availability to write its error in append mode.

Error file is opened/locked/closed on a per error basis.
false
true
catchError
High-Level Use Cases::System1::LogolExec::LogolExec::catchError
public