2 Commits

Author	SHA1	Message	Date
Martin Evans	af680ac2d7	Created a hierarchy of exceptions for grammar format issues. This allows the base catch-all exception to be caught for general handling, or more specific exceptions to be caught for more specific handling.	2023-09-02 02:04:11 +01:00
Martin Evans	a70c7170dd	- Created a higher level `Grammar` class which is immutable and contains a list of grammar rules. This is the main "entry point" to the grammar system. ... - Made all the mechanics of grammar parsing (GBNFGrammarParser, ParseState) internal. Just call `Grammar.Parse("whatever")`. - Added a `GrammarRule` class which validates elements on construction (this allows constructing grammar without parsing GBNF). - It should be impossible for a `GrammarRule` to represent an invalid rule.	2023-08-31 00:02:50 +01:00