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by goto11
1872 days ago
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The point is that a parser could very well use regexes under the hood to perform the tokenization. Because it is the right tool for the job. A language without regex-support might use something like lex to compile a lexer. Of course you can write a character-by-character lexer by hand, but this is just equivalent to what a regex would generate. So saying "this is not possible, use a parser instead" is completely misunderstanding the relationship between lexing and parsing. I wonder how these people think a parser works? |
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