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This is the 5th version of the Pascal-P compiler from Zurich. This is the Pascal-P4 compiler modified to be ISO 7185 Pascal compilant, both in the the implementation language, and in the language it processes.
Pascal-P was an implementation kit, created between 1972 and 1974, for the original language Pascal. The source for the original compiler was passed around and modified quite a bit, but Niklaus Wirth noted that it was very popular, and represented a good method to popularize the language. He gathered the source into a clean version called Pascal-P2. The Zurich group then created an improved version called Pascal-P4.
You can find all of the Pascal-P versions here in sourceforge:
https://sourceforge.net/projects/pascal-s/
https://sourceforge.net/projects/pascal-p2/
https://sourceforge.net/projects/pascalp4/
https://sourceforge.net/projects/pascalp5/
https://sourceforge.net/projects/pascal-p6/
Features
- This compiler features strict adherence to ISO 7185 Level 0
- Machine independent
- Model implementation of original standard Pascal
- Good basis for constructing a new compiler or for compiler class projects
- Contains a full set of ISO 7185 compliance tests, including positive and negative tests
- Fully documented
- Not a history project, but a working and usable compiler being actively developed