Encyclopedia > Token (parser)

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Token (parser)

A token is a piece of text, typically a word or punctuation mark, separated by a lexical analyzer and passed to a parser.

Older Interpreters would tokenize the program, turning the instructions from the programmer into byte-codes that were more easily processed by the VM - Virtual Machine. By doing so they would gain a bit more speed, faster execution.

 Some examples are the, O-code, P-code, Z-machine, and byte codes used in different VM systems.

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