[Flex-help] search and substitute constants in C

[Roberto V. C. <rvc...@es...>]

Hello to all, I’m new to flex and i wanted to know how to parse a C example file and when a #define statement is found, substitute all the instances of that constant with its value. For example:

<input file>

#define TRUE 1
…

…
…
..

a = TRUE;
…


<output file>

…
..
…
...

a = 1;


is this possible?

Thank you in advance!