🔎 Flex and Bison Parser for Android XML Subset

This repository contains a complete implementation of a lexer and parser using Flex and Bison tools for a subset of the XML notation used in Android application development, specifically focusing on elements related to the User Interface (UI). The lexer and parser analyze input files which are written in this subset of XML and determine if the program is syntactically correct.

📸 Screenshots:

Success: Program Executed Successfully

Failure: Program Execution Error

Failure: Duplicate ID Error

▶️ How to run:

Clone the repository:

git clone https://github.com/akispapapanagiotou/flex-and-bison-parser.git

Compile the source code using the following commands:

flex lexer.l
bison -d syntax.y
gcc -o myParser lex.yy.c syntax.tab.c -lfl

Execute the program by running the following command but first replace file_name with the name of the input file written in the XML subset:

./myParser file_name

🛠️ Built with:

• Flex: A fast lexical analyzer generator.
• Bison: A general-purpose parser generator.
• C programming language: Used for implementing the main program logic.