X-Git-Url: https://gitweb.ps.run/toc/blobdiff_plain/5f9668526491332f62c05ad831dbf6d5fdc2b6d0..8aeae09e74b46ca52866f22b48f55fecdf27b849:/Toc.g4

diff --git a/Toc.g4 b/Toc.g4
index 631e2c3..afe4209 100644
--- a/Toc.g4
+++ b/Toc.g4
@@ -2,7 +2,7 @@ grammar Toc;
 
 prog: (decl)+ EOF;
 
-decl: varDecl
+decl: varDecl ';'
     | funcDecl
     | structDecl
     ;
@@ -12,7 +12,7 @@ var:  varName (':' type) ('=' expr)?;
 varInit:  varName (':' type) ('=' expr);
 
 type: typeName (typeModifier)*;
-typeModifier: '*' | '[' NUMBER? ']';
+typeModifier: '*' | ('[' (INT_LIT)? ']');
 
 
 funcDecl: 'func' func;
@@ -24,23 +24,26 @@ body: '{' stmt* '}';
 
 structDecl: 'struct' structName '{' structMember* '}';
 structMember: structVar | structMethod;
-structVar: var;
+structVar: var ';';
 structMethod: func;
 
 
-stmt: varDecl
+stmt: varDecl ';'
     | ifStmt
     | switchStmt
     | forStmt
     | whileStmt
-    | assignStmt
-    | returnStmt
-    | expr;
+    | assignStmt ';'
+    | returnStmt ';'
+    | expr ';';
 
-ifStmt: 'if' expr body ('else' 'if' expr body)* ('else' body)?;
+ifStmt: 'if' expr body elseIfStmt* elseStmt?;
+elseIfStmt: 'else' 'if' expr body;
+elseStmt: 'else' body;
 
 switchStmt: 'switch' identifierExpr switchBody;
-switchBody: '{' ('case' expr body)* '}';
+switchBody: '{' switchCase* '}';
+switchCase: 'case' expr body;
 
 forStmt: 'for' (varInit | assignStmt) ',' expr ',' expr body;
 
@@ -72,16 +75,19 @@ nonAccessExpr: funcExpr
 funcExpr: funcName '(' (expr (',' expr)*)? ')';
 
 opExpr: binaryOp | prefixOp | postfixOp | ternaryOp;
-binaryOp: nonOpExpr BINARY_OP nonOpExpr (BINARY_OP nonOpExpr)*;
-prefixOp: PREFIX_OP nonOpExpr;
-postfixOp: nonOpExpr POSTFIX_OP;
+binaryOp: nonOpExpr binary_op nonOpExpr (binary_op nonOpExpr)*;
+prefixOp: prefix_op nonOpExpr;
+postfixOp: nonOpExpr postfix_op;
 ternaryOp: nonOpExpr '?' expr ':' expr;
 
 identifierExpr: varName;
 
 litExpr: INT_LIT | DECIMAL_LIT | STRING_LIT | BOOL_LIT;
 
-accessExpr: nonAccessExpr ((('.' | '->') identifierExpr) | ('[' expr ']'))+;
+accessExpr: nonAccessExpr (accessSubExpr)+;
+accessSubExpr: accessMember | accessBrackets;
+accessMember: ('.' | '->') identifierExpr;
+accessBrackets: '[' expr ']';
 
 parenExpr: '(' expr ')';
 
@@ -91,12 +97,12 @@ typeName: NAME;
 structName: NAME;
 
 
-POSTFIX_OP:
+postfix_op:
     '++' | '--';
-PREFIX_OP:
-    [+!~&*-] | POSTFIX_OP;
-BINARY_OP:
-    [+*/%&<|^>-] |
+prefix_op:
+    '+' | '-' | '!' | '~' | '&' | '*' | postfix_op;
+binary_op:
+    '+' | '-' | '*' | '/' | '%' | '&' | '<' | '|' | '^' | '>' |
     '==' | '!=' | '<=' | '>=' | '<'  | '>' |
     '<<' | '>>' | '||' | '&&' | '&=' | '|=' | '^=' |
     '<<=' | '>>=' | '+=' | '-=' | '*=' | '/=' | '%=';
@@ -109,4 +115,3 @@ BOOL_LIT: 'true' | 'false';
 NAME: ([a-z] | [A-Z] | [0-9])+;
 WS: [ \t\r\n]+ -> skip;
 NEWLINE: [\r\n]+;
-NUMBER: [0-9]+;