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| author | Andreas Baumann <mail@andreasbaumann.cc> | 2019-02-22 19:16:24 +0100 |
|---|---|---|
| committer | Andreas Baumann <mail@andreasbaumann.cc> | 2019-02-22 19:16:24 +0100 |
| commit | 9f76ed072277ec01ca591e478cf7686914b9e530 (patch) | |
| tree | 8906b2887b896496974446b6877ba25aa4d788f8 /old | |
| parent | 638b7de7d7fb19b756a2f2bc266222b74b4e7295 (diff) | |
| download | compilertests-9f76ed072277ec01ca591e478cf7686914b9e530.tar.gz compilertests-9f76ed072277ec01ca591e478cf7686914b9e530.tar.bz2 | |
work on adding const declarations
introduced symbol table structure
Diffstat (limited to 'old')
| -rw-r--r-- | old/minie.ebnf | 10 |
1 files changed, 7 insertions, 3 deletions
diff --git a/old/minie.ebnf b/old/minie.ebnf index f44e4bc..c676780 100644 --- a/old/minie.ebnf +++ b/old/minie.ebnf @@ -1,10 +1,11 @@ Digit = "0" | "1" | "2" | "3" | "4" | "5" | "6" | "7" | "8" | "9" . Letter = "A" | "B" | "C" | "D" | "E" | "F" | "G" | "H" | "I" | "J" | "K" | "L" | "M" | "N" | "O" | "P" | "Q" | "R" | "S" | "T" | "U" | "V" | "W" | "X" | "Y" | "Z" | - "a" | "b" | "c" | "d" | "e" | "f" | "g" | "h" | "i" | "j" | "k" | "l" | "m" | "n" | "o" | "p" | "q" | "r" | "s" | "t" | "u" | "v" | "w" | "x" | "y" | "z". + "a" | "b" | "c" | "d" | "e" | "f" | "g" | "h" | "i" | "j" | "k" | "l" | "m" | "n" | "o" | "p" | "q" | "r" | "s" | "t" | "u" | "v" | "w" | "x" | "y" | "z" . +Special = "_" . Character = Digit | Letter | "!" | " " | "#" | "$" | "%" | "'" | "(" | ")" | "*" | "+" | "," | "," | "-" | "." | "/" | "[" | "]" | "\" | "^" | "_" | "`" | "{" | "|" | "}" | "~" . Number = Digit { Digit } . String = """ { Character | """ """ } """ | "'" . -Identifier = Letter { Letter | Digit } . +Identifier = Letter { Letter | Digit | Special } . QualifiedIdentifier = Identifier [ "." Identifier ] . Factor = [ "+" | "-" ] Number | String | Designator | "(" Expression ")" | ( "not" Factor ) . Designator = QualifiedIdentifier { Selector } . @@ -31,10 +32,13 @@ ArrayType = "array" [ Number ] "of" Type . Type = SimpleType | ArrayType . VariableDeclaration = VariableName ":" Type . VariableBlock = "var" { VariableDeclaration ";" } . +ConstExpression = Expression . +ConstDeclaration = Identifier "=" ConstExpression . +ConstBlock = "const" { ConstDeclaration ";" } . ImportBlock = "import" Identifier { "," Identifier } . ParameterDeclaration = [ "(" [ Parameter { ";" Parameter } ] ")" ] [ ":" SimpleType ] . Parameter = ident ":" ParameterType . ParameterType = [ "array" "of" ] Type . ProcedureDeclaration = "procedure" Identifier [ ParameterDeclaration ] ";" DeclarationBlock StatementBlock . -DeclarationBlock = [ VariableBlock ] { ProcedureDeclaration ";" } . +DeclarationBlock = [ ConstBlock ] [ VariableBlock ] { ProcedureDeclaration ";" } . Module = "module" Identifier ";" [ ImportBlock ] DeclarationBlock StatementBlock . |