Mirror von
https://github.com/IntellectualSites/FastAsyncWorldEdit.git
synchronisiert 2024-09-06 08:02:50 +02:00
Add initial ANTLR setup + lex/parser
Dieser Commit ist enthalten in:
Ursprung
21f3d967c3
Commit
7d52374fc0
@ -1,7 +1,10 @@
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import org.gradle.plugins.ide.idea.model.IdeaModel
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plugins {
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id("java-library")
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id("net.ltgt.apt-eclipse")
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id("net.ltgt.apt-idea")
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id("antlr")
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}
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applyPlatformAndCoreConfiguration()
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@ -23,6 +26,10 @@ dependencies {
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"compile"("org.slf4j:slf4j-api:1.7.26")
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"compile"("it.unimi.dsi:fastutil:8.2.1")
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val antlrVersion = "4.7.2"
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"antlr"("org.antlr:antlr4:$antlrVersion")
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"implementation"("org.antlr:antlr4-runtime:$antlrVersion")
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"compileOnly"(project(":worldedit-libs:core:ap"))
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"annotationProcessor"(project(":worldedit-libs:core:ap"))
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// ensure this is on the classpath for the AP
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@ -36,6 +43,26 @@ tasks.withType<JavaCompile>().configureEach {
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options.compilerArgs.add("-Aarg.name.key.prefix=")
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}
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tasks.named<AntlrTask>("generateGrammarSource").configure {
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val pkg = "com.sk89q.worldedit.antlr"
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outputDirectory = file("build/generated-src/antlr/main/${pkg.replace('.', '/')}")
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arguments = listOf(
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"-visitor", "-package", pkg,
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"-Xexact-output-dir"
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)
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}
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// Give intellij info about where ANTLR code comes from
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plugins.withId("idea") {
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configure<IdeaModel> {
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afterEvaluate {
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module.sourceDirs.add(file("src/main/antlr"))
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module.sourceDirs.add(file("build/generated-src/antlr/main"))
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module.generatedSourceDirs.add(file("build/generated-src/antlr/main"))
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}
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}
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}
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sourceSets {
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main {
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java {
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186
worldedit-core/src/main/antlr/com/sk89q/worldedit/antlr/Expression.g4
Normale Datei
186
worldedit-core/src/main/antlr/com/sk89q/worldedit/antlr/Expression.g4
Normale Datei
@ -0,0 +1,186 @@
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grammar Expression;
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// Lexer tokens:
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PLUS : '+' ;
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MINUS : '-' ;
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TIMES : '*' ;
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DIVIDE : '/' ;
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MODULO : '%' ;
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POWER : '^' | '**' ;
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LEFT_SHIFT : '<<' ;
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RIGHT_SHIFT : '>>' ;
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ASSIGN : '=' ;
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COMPLEMENT : '~' ;
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PLUS_ASSIGN : '+=' ;
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MINUS_ASSIGN : '-=' ;
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TIMES_ASSIGN : '*=' ;
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DIVIDE_ASSIGN : '/=' ;
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MODULO_ASSIGN : '%=' ;
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POWER_ASSIGN : '^=' ;
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EQUAL : '==' ;
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NOT_EQUAL : '!=' ;
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NEAR : '~=' ;
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LESS_THAN : '<' ;
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LESS_THAN_OR_EQUAL : '<=' ;
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GREATER_THAN : '>' ;
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GREATER_THAN_OR_EQUAL : '>=' ;
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// SC = "Short Circuit"
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// Non-SC variants not currently implemented.
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AND_SC : '&&' ;
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OR_SC : '||' ;
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INCREMENT : '++' ;
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DECREMENT : '--' ;
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COMMA : ',' ;
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OPEN_PAREN : '(' ;
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CLOSE_PAREN : ')' ;
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OPEN_BRACKET : '{' ;
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CLOSE_BRACKET : '}' ;
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SEMI_COLON : ';' ;
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QUESTION_MARK : '?' ;
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COLON : ':' ;
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EXCLAMATION_MARK : '!' ;
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IF : 'if' ;
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ELSE : 'else' ;
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WHILE : 'while' ;
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DO : 'do' ;
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FOR : 'for' ;
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BREAK : 'break' ;
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CONTINUE : 'continue' ;
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RETURN : 'return' ;
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SWITCH : 'switch' ;
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CASE : 'case' ;
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DEFAULT : 'default' ;
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fragment DIGIT : [0-9] ;
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fragment SIGN : [+-] ;
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fragment EXP_CHAR : [eE] ;
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fragment DECIMAL : '.' DIGIT+ ( EXP_CHAR SIGN? DIGIT+ )? ;
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// All numbers are treated the same. No int/dec divide.
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NUMBER : SIGN? ( DIGIT+ DECIMAL? | DECIMAL ) ;
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ID : [A-Za-z] [0-9A-Za-z_]* ;
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WS : [ \t\r\n\u000C]+ -> skip ;
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// Parser rules:
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/**
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* All statements parseable from the input. Forces consumption of EOF token.
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*/
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allStatements : statements EOF ;
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statements : statement+ ;
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statement
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: block
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| ifStatement
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| whileStatement
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| doStatement
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| forStatement
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| breakStatement
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| continueStatement
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| returnStatement
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| switchStatement
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| expressionStatement
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| SEMI_COLON
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;
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block : '{' statements '}' ;
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ifStatement : IF '(' expression ')' statement ( ELSE statement ) ;
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whileStatement : WHILE '(' expression ')' statement ;
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doStatement : DO statement WHILE '(' expression ')' SEMI_COLON ;
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forStatement
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: FOR '('
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// C-style for loop
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( expression ';' expression ';' expression
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// Range for loop
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| ID ASSIGN ID ',' ID
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)
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')' statement ;
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breakStatement : BREAK ;
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continueStatement : CONTINUE ;
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returnStatement : RETURN expression? ;
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switchStatement : SWITCH '(' expression ')' '{' (switchLabel ':' statements )+ '}' ;
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switchLabel
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: CASE constantExpression
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| DEFAULT
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;
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expressionStatement : expression SEMI_COLON ;
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expression
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: constantExpression
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| functionCall
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| identifierExpression
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| '(' expression ')'
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| unaryOp expression
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| identifierExpression binaryAssignOp expression
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| expression binaryOp expression
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| expression postUnaryOp
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;
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constantExpression : NUMBER ;
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functionCall : ID '(' (expression ( ',' expression )*)? ')' ;
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identifierExpression : ID ;
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unaryOp
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: MINUS
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| EXCLAMATION_MARK
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| COMPLEMENT
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| INCREMENT
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| DECREMENT
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;
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postUnaryOp
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: INCREMENT
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| DECREMENT
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| EXCLAMATION_MARK
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;
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binaryOp
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: POWER
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| TIMES
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| DIVIDE
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| MODULO
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| PLUS
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| MINUS
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| LEFT_SHIFT
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| RIGHT_SHIFT
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| LESS_THAN
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| GREATER_THAN
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| LESS_THAN_OR_EQUAL
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| GREATER_THAN_OR_EQUAL
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| EQUAL
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| NOT_EQUAL
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| NEAR
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| AND_SC
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| OR_SC
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;
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binaryAssignOp
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: ASSIGN
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| PLUS_ASSIGN
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| MINUS_ASSIGN
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| TIMES_ASSIGN
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| DIVIDE_ASSIGN
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| MODULO_ASSIGN
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| POWER_ASSIGN
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;
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