On Mon, 22 Apr 2024 01:52:14 +1000, Robin Vowels wrote:o > ... >One would not use as variable such common keywords as mentioned above. > >The real advantage is that one doesn't need to keep in mind >all those uncommonly-used words that might be used as variable names, > somewhat the opposite. If the keywords are reserved, the processor will inform the programmer of misuse. A processor can have an "oracle" that always correctly divines the programmer's intent, as PL/I does. But in a single Rexx program, the same symbol can be a variable in one instruction but a keyword in the next, with no syntax error but unexpected result.
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