A lexical analyzer generator that makes the class source code.

Add a Review
1 Download (This Week)
Last Update:
Download uls-1.5.3.tar.xz
Browse All Files
Windows BSD Linux



ULS is a class library for creating lexical analyzer from language specification file. It's provided as C/C++/C# and Java (class) libraries with a few of tools on Linux/Windows platform.

ULS Web Site


  • Can instantiate multiple objects for one language or other languages in one application
  • Can tokenize the input file which encoded by UTF-8, UTF-16, UTF-32 as well as ASCII.
  • Can store the tokens from many input files to a uls-file(*.uls), which can be replayed and
  • Can be used as a replacement of 'lex/flex' for token-provider to yacc/bison parser.
  • As ULS manipulates real or integer numbers having arbitrary number of digits.
  • Can map the tokens that you define to any number of all range of 32-integer,

Update Notifications

Write a Review

User Reviews

Be the first to post a review of ULS!

Additional Project Details



Intended Audience

Developers, Non-Profit Organizations

User Interface


Programming Language

C, C#, C++, Java


Screenshots can attract more users to your project.
Features can attract more users to your project.

Icons must be PNG, GIF, or JPEG and less than 1 MiB in size. They will be displayed as 48x48 images.