pragma statement parse error when verison doesn't follow A.B.C pattern about solidity-parser-antlr HOT 4 OPEN

Thanks for the report @duaraghav8! I wasn't aware of the optional version parts. Looks like supporting some of these would require a split of the parser and lexer and the introduction of lexer modes, which I am not sure I want to do right now.

Is there any particular example that is giving you trouble? Perhaps we can handle that case first and then worry about the rest.

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@federicobond no prob, actually none of them trouble me. I happened to come across a codebase that was using ^0.4 in pragma statement and was wondering if it gets parsed.
But this version literal is being used very rarely, so not a high priority issue IMO. most people are using a.b.c only. Let's keep the issue open though? So we have a record for the future.

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Sure! I’ll keep it open, no worries 😊

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This is causing me some troubles. I have a contract that has the version string ~0.4.10 and the parser can't parse that. I've created an issue at a grammar repo: solidityj/solidity-antlr4#15

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