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| author | Mel <einebeere@gmail.com> | 2021-10-24 02:03:29 +0200 |
|---|---|---|
| committer | Mel <einebeere@gmail.com> | 2021-10-24 02:03:29 +0200 |
| commit | 73c4808c44f75b7d6546f00f70779fcbf8e28754 (patch) | |
| tree | f44e26fad3f37e62c0f5a35e2fafbe2d20f6da55 /grammar.ebnf | |
| parent | 249abe9c33dfd08afa6b09f3e53be91b0f445561 (diff) | |
| download | rabbithole-73c4808c44f75b7d6546f00f70779fcbf8e28754.tar.zst rabbithole-73c4808c44f75b7d6546f00f70779fcbf8e28754.zip | |
Postfix parsing
Diffstat (limited to 'grammar.ebnf')
| -rw-r--r-- | grammar.ebnf | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/grammar.ebnf b/grammar.ebnf index 7428788..7e59e74 100644 --- a/grammar.ebnf +++ b/grammar.ebnf @@ -25,7 +25,8 @@ EqualityExpression = ComparisonExpression { ("==" | "!=") ComparisonExpression } ComparisonExpression = TermExpression { ("<" | "<=" | ">" | ">=") TermExpression }; TermExpression = FactorExpression { ("+" | "-") FactorExpression }; FactorExpression = UnaryExpression { ("*" | "/") UnaryExpression }; -UnaryExpression = ( "-" | "!" ) UnaryExpression | UnitExpression ; +UnaryExpression = ( "-" | "!" ) UnaryExpression | PostfixExpression ; +PostfixExpression = UnitExpression { ( "(" [FnCallArguments] ")" | "[" Expression "]" | "." IDENTIFIER ) }; (* Unaffected Expressions *) @@ -45,6 +46,8 @@ LoopExpression = "loop" ["if" Expression] Block; FnHeader = (FnParameters) ["->" Type]; FnParameters = ("self" | FnParameter) { "," FnParameter}; +FnCallArguments = Expression { "," Expression }; + (* Utils *) Block = "{" { Statement } [Expression] "}"; |