Normally, when you want to reuse a regular expression, you can declare it in flex in declaration section. They will get enclosed by parenthesis by default. Eg:
I was testing something with lexer, and wrote this regex rule:[0-9([a-b])[c-f]] ; According this docs, this is equivalent to:[0-9a-f()] ; For example, the foll
I want to match these two tokens: 1. NUM: A series of characters in [0-9_] with an optional . in between. 2. ID: A series of characters in [a-zA-Z0-9_] with at-
I'm coding a compiler using Flex and Bison, I coded yyerror(char*) and some printf() messages to show lexical and syntax errors. I tested my code by adding some
Is there a way I can extract the number of digits before and after the '.' in a float in Flex? I want to limit the number of digits in the integer part to 4, an
I am writing a simple compiler for a simple C like language. To do that I would like to use Flex and Bison but use them both in the context of modern C++ Right
I'm working with flex to generate custom language. I'm wondering if there is a possibility to add in some way a setting that will change a part of generated .le