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On 09/03/11 18:53, Gé Weijers wrote:
>> Implementing such behavior might be possible but it will make
>> parser/lexer more complicated and could alter Lua grammar.
>> Out of curiosity, are there languages around that allow keyword tokens
>> to be used as variables, strings, etc ?
> PL/I was mentioned. I believe SQL also allows the use of keywords as
> identifiers.

Algol-68, of course; one of its transcription modes effectively
distinguishes keywords from identifiers by font.

Smalltalk, but that's slightly cheating as it doesn't have any keywords
(all syntactical elements are non-alphanumeric symbols).

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