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by chubot
3703 days ago
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Thanks! Found it: http://cs61.seas.harvard.edu/wiki/2015/Shell This looks pretty comprehensive for an undergrad project actually... they have a grammar and everything, with pipes and redirects, which are definitely the most Unix-y concepts. And they talk about interrupts, although no user-defined signal handlers or anything. FWIW I ported the POSIX shell grammar to ANTLR, though I'm writing it in C++ (and prototyping the architecture in Python). ANTLR is actually incapable of expressing the lexer AFAICT... http://pubs.opengroup.org/onlinepubs/9699919799/utilities/V3... |
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