Sign Up to our social questions and Answers Engine to ask questions, answer people’s questions, and connect with other people.
Login to our social questions & Answers Engine to ask questions answer people’s questions & connect with other people.
Lost your password? Please enter your email address. You will receive a link and will create a new password via email.
Please briefly explain why you feel this question should be reported.
Please briefly explain why you feel this answer should be reported.
Please briefly explain why you feel this user should be reported.
Flex provides a mechanism for creating and switching between multiple input buffers. An input buffer is created by using: yy_creat_buffer and gives the possibility to switch input stream by using yy_switch_buffer.
The problem is lex does not implement a solution like that.
you can find more in the Flex manual
Unfortunately, there no similar solution in lex, and if any one knows one please please give it to us.
The only possibility is that you redefine
yywrap(),which is called whenever Lex reaches an end-of-file.In this case, you should provide a
yywrap()which arranges for new input and returns 0. This instructs Lex to continue processing. The default yywrap always returns 1(no added input).