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| author | franck cuny <franck@fcuny.net> | 2020-01-11 14:40:32 +0100 |
|---|---|---|
| committer | franck cuny <franck@fcuny.net> | 2020-01-11 14:40:32 +0100 |
| commit | 4fb91ad4622e099f798e01873bac914b64ed48f4 (patch) | |
| tree | 1953ed23ac4c7edb49801db4e70906e0e2545da2 /users/fcuny/exp/monkey/Makefile | |
| parent | token: add tokens for equal and not equal. (diff) | |
| download | world-4fb91ad4622e099f798e01873bac914b64ed48f4.tar.gz | |
lexer: support tokens for equal and not equal.
The tokens for equal (`==`) and not equal (`!=`) are composed of two characters. We introduce a new helper (`peekChar`) that we use when we encounter the token `=` or `!` to see if this is a token composed of two characters. Add some tests to ensure they are parsed correctly.
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