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read commands from a region in a file
SourceRegion FromLine: INT,FromChar: INT To ToLine: INT,ToChar: INT In S: STRING
This command executes all CoCoA commands in the specified region of the given file.
It is not intended for manual use, but is used by the CoCoA UI.
SourceRegion FromLine,FromChar To ToLine,ToChar In "MyFile.cocoa5";
It is almost equivalent to copying the region into a temporary file, and then reading
that file with the
Line and char indexes start from 1; the region identified starts at the "from"
line/character position and stops immediately before the "to" line/character position.