wrx_exec.c- Contains thewrx_exec()function's definition. It matches a string to to a compiled NFA. wrx_free.c- Contains thewrx_free()function's definition. Itfree()'s an NFA created bywrx_comp(). wrx_error.c- Contains thewrx_error()function's definition. It describes error codes ...
Compilation- This is the step that builds the NFA. It is the part thattakes an input pattern like "ab*c" and builds a data structure thatrepresents the state machine of Figure 2.wregexcalls this structure awregex_t, and does the compilation in the functionwrx_comp()defined inthe filewrx...