Flex and Bison Tutorial-part 5 | Identify Operator-Name of a Contact Number using I/O File | Eng Sub

Share link of this video: To learn identifying operator name of a contact number with exact digits and country code, follow this link: -----(to be announced)----- This is the 5th video of this tutorial. In this video I'll show you how to identify operator name of a given contact number in a file using flex and bison & export the result in an output text file to show them with the help of a C program. I also showed a new topic- how to write into a text output file from the c file(or the lex file) instead of the command line output showing. Firstly, I'll explain the theory and then implement the code portion. To better understand, go through the video without skipping any part. Every part is important. How to Identify Number Data Types using Flex: How to identify, count and show keyword, operators, single line comments, multi-line comments: How to identify, cou