STEPswiftcode/ exp2swift

exp2swift translator which translates STEP schema files described in ISO 10303-11 STEP EXPRESS language to the Swift programing language.

by Tsutomu Yoshida, Minokamo Japan.

software category: command line tool

how to use: exp2swift <input STEP schema file path>

output: a set of translated STEP-schema swift source files are generated under current working directory.

The environment variable EXPRESS_PATH can be utilized to specify the search paths for the STEP schema files.

overview

Based on the STEPcode / STEP Class Libraries (SCL) by the U.S. National Institute of Standards and Technology (NIST), the exp2swift translates STEP schema files described in ISO 10303-11:1994 EXPRESS language to the Swift programing language. Currently it can only handle a single schema file (the ISO 10303-11:1994 longform schema). The main intention of the development of this translator is to translate ISO 10303-242 (AP242) schema definition into the Swift programing language.

swift STEP code suite

• SwiftSDAIcore Swift SDAI runtime environment
• SwiftSDAIap242ed4 Swift translated AP242 schema definition (ed4)
• *SwiftSDAIap242 Swift translated AP242 schema definition (ed2) HISTORICAL *
• SwiftAP242PDMkit Swift implementation of PDM schema usage guide
• simpleP21ReadSample Single P21 file reading and validation sample code
• multipleP21ReadsSample Tree of P21 files reading and validation sample code
• STEPswiftcode/exp2swift EXPRESS to Swift translator

Development environment

• Xcode version 26.4
• macOS Tahoe 26.3.1(a)