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UpstandingHackers / hammer

Parser combinators for binary formats, in C. Yes, in C. What? Don't look at me like that.
GNU General Public License v2.0
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Bit constant fields #117

Open mrdomino opened 9 years ago

mrdomino commented 9 years ago

This can be hacked around with validations, but obviously results in grammars that don't appear context-free as far as hammer can tell when they otherwise might be. Syntax like h_bits_const(4, 0xa) would be desirable.

At the moment, this appears to be blocking compilation of grammars that make use of bit constants with any backends other than packrat.

mrdomino commented 9 years ago

h_one and h_zero would be desirable special cases of this.