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Jon Ross-Perkins
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As part of using the evolution process with the toolchain, alternatives should be in proposals. This proposal migrates existing alternatives here. Assisted-by: Google Antigravity with Gemini 3 Flash
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1.0 KiB
Lex
Table of contents
Overview
Lexing converts input source code into tokenized output. Literals, such as string literals, have their value parsed and form a single token at this stage.
Bracket matching
The lexer handles matching for (), [], and {}. When a bracket lacks a
match, it will insert a "recovery" token to produce a match. As a consequence,
the lexer's output should always have matched brackets, even with invalid code.
While bracket matching could use hints such as contextual clues from indentation, that is not yet implemented.