'Build Your Own Programming Language Part III: Improving Lexical Analysis with Regex Lookaheads' lexicalanalysis regex
Let’s dive into code and see how we can improve lexical analysis for our programming language.
We will go through declaredif|then|end|print|input|struct|argDuring the lexical analysis we will capture thislexeme instead of being parsed as a variable. To read it properly, we need to be sure that after the keyword is placed either a space or the end of the line. It could be done with the help of a positive lookahead in the end of the
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