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Tokens

Besides the special NEWLINE, INDENT and DEDENT tokens described in lexical-analysis, the following categories of tokens exist: identifiers, keywords, literals, operator-tokens, and delimiter-tokens.

Whitespace characters (other than line terminators, discussed earlier) are not tokens, but serve to delimit tokens. Where ambiguity exists, a token comprises the longest possible string that forms a legal token, when read from left to right.