LE-compiler

Compiler front end of logical expression evaluation, course project of CP.

Feature

• logical expression evaluation
• count skipped comparisons caused by short circuit
• arithmetic operations support
• support CLI test and test file tests
• fundamental error prompt

Build

First of all, you need to meet the following prerequisites before the building:

• gcc: C is selected as the target programming language, so any compiler of C that supports C99 is applicable.
• make: make is used as the build tool.
• flex: flex is needed to do the lexical analysis.
• bison: bison is selected to do the syntax and semantic analysis.

Fortunately, you can install all the tools above with only one command on Ubuntu/Debian with priviledge:

sudo apt-get install gcc make flex bison --yes

or this command on CentOS:

sudo yum -y install gcc make flex bison 

To build, first you need to clone the project to local:

git clone https://github.com/HwaHe/LE-compiler.git

Then cd into the project's source code directory and build the parser with make:

cd src
make

And now you have successfully built my LE-compiler tool 💐!

You can test it in terminal:

./parser

or use make to do the prepared test:

make test

Have fun:wink:~

TODO

• add support for octal integer and hex integer
• add support for octal integer and hex integer of wrong format
• add support for recovery from lex error
• add support for recovery from syntax error

If time permitted, I'll dive into flex&bison to complete the todos.

License

Apache License

Copyright © 2021 Hwa

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If you like my project, feel free to give my repo a star~ ⭐ ⬆️.