Created
May 25, 2013 23:40
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Coco/R is somewhat annoying...
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| COMPILER CompilationUnit | |
| CHARACTERS | |
| tab = '\u0009' . | |
| lf = '\u000a' . | |
| cr = '\u000d' . | |
| digit = "1234567890" . | |
| letter = 'A' .. 'Z' + 'a' .. 'z' + '_'. | |
| TOKENS | |
| ident = letter { letter | digit }. | |
| intLit = digit { digit } . | |
| IGNORE lf + cr + tab | |
| PRODUCTIONS | |
| CompilationUnit = AssignExpr . | |
| /* STATEMENTS */ | |
| /* EXPRESSIONS */ | |
| //with this... 2 + 2 = 16 = pi is possible... :( | |
| AssignExpr = SumExpr { AssignOp SumExpr } . | |
| SumExpr = ProductExpr { SumOp ProductExpr } . | |
| ProductExpr = UnaryExpr { ProductOp UnaryExpr } . | |
| UnaryExpr = [ UnaryOp ] PrimaryExpr . | |
| PrimaryExpr | |
| = | |
| '(' AssignExpr ')' | |
| | intLit | |
| | ident | |
| . | |
| /* OPERATORS */ | |
| AssignOp | |
| = | |
| '=' | |
| | "+=" | |
| | "-=" | |
| | "*=" | |
| | "/=" | |
| | "&=" | |
| | "|=" | |
| | "^=" | |
| | "%=" | |
| | "<<=" | |
| | ">>=" | |
| . | |
| SumOp | |
| = | |
| "+" | |
| | "-" | |
| | "|" | |
| | "^" | |
| . | |
| ProductOp | |
| = | |
| "*" | |
| | "/" | |
| | "%" | |
| | "<<" | |
| | ">>" | |
| | "&" | |
| . | |
| UnaryOp | |
| = | |
| "-" | |
| | "~" | |
| . | |
| END CompilationUnit. |
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