| 本月文章推荐 |
Mini Java编译器（二）——语法（BNF）发表日期：2008-1-5
|
|
二、Mini Java的文法 BNF Goal ::= MainClass ( TypeDeclaration )* <EOF> MainClass ::= "class" Identifier "{" "public" "static" "void" "main" "(" "String" "[" "]" Identifier ")" "{" PrintStatement "}" "}" TypeDeclaration ::= ClassDeclaration ClassExtendsDeclaration ClassDeclaration ::= "class" Identifier "{" ( VarDeclaration )* ( MethodDeclaration )* "}" ClassExtendsDeclaration ::= "class" Identifier "extends" Identifier "{" ( VarDeclaration )* ( MethodDeclaration )* "}" VarDeclaration ::= Type Identifier ";" MethodDeclaration ::= "public" Type Identifier "(" ( FormalParameterList )? ")" "{" ( VarDeclaration )* ( Statement )* "return" EXPression ";" "}" FormalParameterList ::= FormalParameter ( FormalParameterRest )* FormalParameter ::= Type Identifier FormalParameterRest ::= "," FormalParameter Type ::= ArrayType BooleanType IntegerType Identifier ArrayType ::= "int" "[" "]" BooleanType ::= "boolean" IntegerType ::= "int" Statement ::= Block AssignmentStatement ArrayAssignmentStatement IfStatement WhileStatement PrintStatement Block ::= "{" ( Statement )* "}" AssignmentStatement ::= Identifier "=" Expression ";" ArrayAssignmentStatement ::= Identifier "[" Expression "]" "=" Expression ";" IfStatement ::= "if" "(" Expression ")" Statement "else" Statement WhileStatement ::= "while" "(" Expression ")" Statement PrintStatement |
| 上一篇：JavaHead：Java小程序的是是非非
人气:767 下一篇：Mini Java编译器（二） 人气:1277 |
| 浏览全部Java的内容
Dreamweaver插件下载 网页广告代码 祝你圣诞节快乐 2009年新年快乐 |
