Skip to main content
U.S. flag

An official website of the United States government

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Secure .gov websites use HTTPS
A lock ( ) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.

The NIST EXPRESS Toolkit: Updating Existing Applications

Published

Author(s)

Donald E. Libes

Abstract

The NIST EXPRESS Toolkit is a software library for building EXPRESS-related tools. The toolkit was previously released in 1991, based on EXPRESS N14. The current release is based on N151 and while the philosophical underpinnings are similar, much of the interfaces have changed significantly. This paper describes changes that must be made to extant applications so that they can work with the new toolkit.

This paper should be read by anyone maintaining software based upon the NIST EXPRESS toolkit. This paper will also provide insight to people interested in the internals of EXPRESS implementations and some of the ways they have changed over time due to experience and the different EXPRESS specifications.

Citation
NIST Interagency/Internal Report (NISTIR) - 5205
Report Number
5205

Keywords

compiler, Express, implementation, National PDES Testbed, PDES, STEP

Citation

Libes, D. (1993), The NIST EXPRESS Toolkit: Updating Existing Applications, NIST Interagency/Internal Report (NISTIR), National Institute of Standards and Technology, Gaithersburg, MD, [online], https://doi.org/10.6028/NIST.IR.5205 (Accessed April 18, 2024)
Created January 1, 1993, Updated November 10, 2018