compiling lex : .\flex .l
compiling c: g++ <C_FILE> -o <EXE_FILE>
Built in vars:
- yyin
- yyout
built in func:
- yylex()
- yywrap() :calls when EOF!!!
Conditions: activate with BEGIN and write for every line to consider the condition End with BEGIN INITIAL
- specific: %x
- general: %s