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| author | Dibyendu Majumdar <mobile@majumdar.org.uk> | 2023-09-26 17:43:36 +0100 |
|---|---|---|
| committer | Dibyendu Majumdar <mobile@majumdar.org.uk> | 2024-11-27 11:29:33 -0800 |
| commit | 3b02b5bdffaf2e3191d55fbb468dc765eb439025 (patch) | |
| tree | 1421f23f6835f41b3ea97fe6c5222368a337eec2 /docs/chapter02/02-grammar.md | |
| parent | d63e09a8edf606fea89c6036bc5ae50a331bfd90 (diff) | |
| download | Simple-3b02b5bdffaf2e3191d55fbb468dc765eb439025.tar.gz Simple-3b02b5bdffaf2e3191d55fbb468dc765eb439025.zip | |
Chapter 2: Arithmetic
Co-authored-by: Cliff Click <cliffc@acm.org>
Co-authored-by: Thalia Archibald <thalia@archibald.dev>
Co-authored-by: Yichen Yan <oraluben@outlook.com>
Co-authored-by: XmiliaH <45106915+XmiliaH@users.noreply.github.com>
Co-authored-by: Tamás Hadházy <85063808+Hels15@users.noreply.github.com>
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diff --git a/docs/chapter02/02-grammar.md b/docs/chapter02/02-grammar.md new file mode 100644 index 00000000..ce875eda --- /dev/null +++ b/docs/chapter02/02-grammar.md @@ -0,0 +1,40 @@ +# Grammar for Chapter 1 + +```antlrv4 +grammar SimpleLanguage; + +program + : statement EOF + ; + +statement + : 'return' expression ';' + ; + +expression + : additiveExpression + ; + +additiveExpression + : multiplicativeExpression (('+' | '-') multiplicativeExpression)* + ; + +multiplicativeExpression + : unaryExpression (('*' | '/') unaryExpression)* + ; + +unaryExpression + : ('-') unaryExpression + | primaryExpression + ; + +primaryExpression + : INTEGER_LITERAL + | '(' expression ')' + ; + +INTEGER_LITERAL + : [1-9][0-9]* + | [0] + ; +``` |