What is a "lex rule for a regular expression"? That makes no sense. A regular expression (in your language) is nothing that lex will recognize beyond a simple string literal constant. It would be impossible to define a lex rule for it. Any surrounding stuff (markers, etc.) might be tokenizable, such as Perl's s#regex#replace#flags
What the (f)lex rule for a regex?
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14-10-2022 - |
Pregunta
I want to create a small language which allow entering regular expressions. I will be scanning with (f)lex.
Therefore I need the Lex rule for a regular expression. Has anyone done this before?
Solución
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