JastAddAspect.flex

package org.jastadd.tooling.aspect.lexer;

import com.intellij.lexer.FlexLexer;
import com.intellij.psi.tree.IElementType;
import org.jastadd.tooling.aspect.psi.JastAddAspectTypes;
import com.intellij.psi.TokenType;

%%

%class JastAddAspectLexer
%implements FlexLexer
%unicode
%function advance
%type IElementType
%eof{  return;
%eof}

%{
  private int counter = 0;
%}

WhiteSpace          = [ \t\n\r\f]

// TODO what is /**/ in Java? Is this caputered here?
SingleLineComment   = "//"  [^\n\r]* (\n | \r | \r\n)
FormalComment       = "/**" [^*]* [*]+([^*/][^*]*[*]+)*[/]
MultiLineComment    = "/*"  [^*]+ [*]+([^*/][^*]*[*]+)*[/]


NotBrace          = ( [^{}/]+ | [/][^{}/*] )*

// from jjt
DecimalLiteral    = [1-9] [0-9]*
HexLiteral        = 0 [xX] [0-9a-fA-F]+
OctalLiteral      = 0 [0-7]*
IntegerLiteral    = ( {DecimalLiteral} | {HexLiteral} | {OctalLiteral} ) [lL]?

Exponent             = [eE] [+-]? [0-9]+
FloatingPointLiteral = [0-9]+ "." [0-9]* {Exponent}? [fFdD]?
                     |        "." [0-9]+ {Exponent}? [fFdD]?
                     |            [0-9]+ {Exponent}  [fFdD]?
                     |            [0-9]+ {Exponent}? [fFdD]

CharacterLiteral     = '  ( [^'\\\n\r]  | ( \\ ( [ntbrf\\'\"] | [0-7][0-7?] | [0-3][0-7][0-7] ) ) ) '
StringLiteral        = \" ( [^\"\\\n\r] | ( \\ ( [ntbrf\\'\"] | [0-7][0-7?] | [0-3][0-7][0-7] ) ) )* \"

Identifier           = [:jletter:] [:jletterdigit:]*

%state JASTADD
%state EXPECT_CLASS_ANYTHING_LBRACE_ANYTHING_RBRACE
%state CLASS_ANYTHING_LBRACE_ANYTHING_RBRACE
%state LBRACE_ANYTHING_RBRACE
%state JAVA_IN_PAREN
%state COLLECTION_DECL
%state ATTRIBUTE_DEFINITION
%state LPAREN_ANYTHING_RPAREN

%%

<YYINITIAL,COLLECTION_DECL,ATTRIBUTE_DEFINITION> {
  {WhiteSpace}+                  { return TokenType.WHITE_SPACE; }
  {SingleLineComment}            { return JastAddAspectTypes.SINGLE_LINE_COMMENT; }
  {FormalComment}                { return JastAddAspectTypes.FORMAL_COMMENT; }
  {MultiLineComment}             { return JastAddAspectTypes.MULTI_LINE_COMMENT; }
//  "EQ"                           { yybegin(YYINITIAL); return JastAddAspectTypes.EQ; }
//  "{"                            { yybegin(JAVA); counter = 1;  }
  "class"                        { yybegin(EXPECT_CLASS_ANYTHING_LBRACE_ANYTHING_RBRACE); }
}

<EXPECT_CLASS_ANYTHING_LBRACE_ANYTHING_RBRACE> {