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A parser and code model for the ISO 10303 EXPRESS language with a lot more interesting stuff to come

1 starsC++

A parser for the ISO 10303 EXPRESS language for its 40th anniversary

by Rochus·Jun 7, 2026·4 points·0 comments

AI Analysis

MidNiche Gem

EXPRESS parser for CAD engineers when existing STEP tooling already handles this.

Strengths
  • Targets a 40-year-old ISO standard still used in manufacturing
  • Open source with MIT license for commercial CAD tooling
Weaknesses
  • One star and zero forks suggests limited adoption or visibility
  • No clear differentiation from existing EXPRESS/STEP parsers
Target Audience

CAD software engineers and manufacturing data specialists

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STEP File Analyzer · NIST STEP Tools

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