first step for parsing double quoted strings

[phpeclipse.git] / net.sourceforge.phpeclipse / src / test / PHPParser.jj

diff --git a/net.sourceforge.phpeclipse/src/test/PHPParser.jj b/net.sourceforge.phpeclipse/src/test/PHPParser.jj
index 92e62c8..0637cf1 100644 (file)
--- a/net.sourceforge.phpeclipse/src/test/PHPParser.jj
+++ b/net.sourceforge.phpeclipse/src/test/PHPParser.jj
@@ -87,7 +87,7 @@ public final class PHPParser extends PHPParserSuperclass {
   /** The cursor in expression stack. */
   private static int nodePtr;
 
-  public static final boolean PARSER_DEBUG = true;
+  public static final boolean PARSER_DEBUG = false;
 
   public final void setFileToParse(final IFile fileToParse) {
     PHPParser.fileToParse = fileToParse;
@@ -589,19 +589,79 @@ MORE :
 |
   <#EXPONENT: ["e","E"] (["+","-"])? (["0"-"9"])+ >
 |
-  <STRING_LITERAL: (<STRING_1> | <STRING_2> | <STRING_3>)>
-|   <STRING_1: "\"" ( ~["\"","\\"] | "\\" ~[] )* "\"">
+  <STRING_LITERAL: (<STRING_2> | <STRING_3>)>
+//|   <STRING_1: "\"" ( ~["\"","\\"] | "\\" ~[] )* "\"">
 |   <STRING_2: "'"  ( ~["'","\\"]  | "\\" ~[] )* "'">
 |   <STRING_3: "`"  ( ~["`","\\"]  | "\\" ~[] )* "`">
 }
 
+<IN_STRING,DOLLAR_IN_STRING> SKIP :
+{
+  <ESCAPED : ("\\" ~[])> : IN_STRING
+}
+
+<PHPPARSING> TOKEN :
+{
+  <DOUBLEQUOTE : "\""> : IN_STRING
+}
+
+
+<IN_STRING> TOKEN :
+{
+  <DOLLARS : "$"> : DOLLAR_IN_STRING
+}
+
+<IN_STRING,DOLLAR_IN_STRING> TOKEN :
+{
+  <DOUBLEQUOTE2 : "\""> : PHPPARSING
+}
+
+<DOLLAR_IN_STRING> TOKEN :
+{
+  <LBRACE1 : "{"> : DOLLAR_IN_STRING_EXPR
+}
+
+<IN_STRING> SPECIAL_TOKEN :
+{
+    <"{"> : SKIPSTRING
+}
+
+<SKIPSTRING> SPECIAL_TOKEN :
+{
+    <"}"> : IN_STRING
+}
+
+<SKIPSTRING> SKIP :
+{
+    <~[]>
+}
+
+<DOLLAR_IN_STRING_EXPR> TOKEN :
+{
+  <RBRACE1 : "}"> : DOLLAR_IN_STRING
+}
+
+<DOLLAR_IN_STRING_EXPR> TOKEN :
+{
+  <ID : (~["}"])*>
+}
+
+<IN_STRING> SKIP :
+{
+  <~[]>
+}
+
+<DOLLAR_IN_STRING_EXPR,IN_STRING> SKIP :
+{
+  <~[]>
+}
 /* IDENTIFIERS */
 
 
 <PHPPARSING,IN_VARIABLE> TOKEN : {<DOLLAR : "$"> : IN_VARIABLE}
 
 
-<PHPPARSING, IN_VARIABLE> TOKEN :
+<PHPPARSING, IN_VARIABLE, DOLLAR_IN_STRING> TOKEN :
 {
   <IDENTIFIER: (<LETTER>|<SPECIAL>) (<LETTER>|<DIGIT>|<SPECIAL>)* >
 |
@@ -618,6 +678,10 @@ MORE :
   >
 }
 
+<DOLLAR_IN_STRING> SPECIAL_TOKEN :
+{
+ < ~[] > : IN_STRING
+}
 /* SEPARATORS */
 
 <PHPPARSING,IN_VARIABLE> TOKEN :
@@ -1914,6 +1978,7 @@ AbstractVariable VariableSuffix(final AbstractVariable prefix) :
 Literal Literal() :
 {
   final Token token;
+  StringLiteral literal;
 }
 {
   token = <INTEGER_LITERAL>        {return new NumberLiteral(token);}
@@ -1922,6 +1987,43 @@ Literal Literal() :
 | token = <TRUE>                   {return new TrueLiteral(token);}
 | token = <FALSE>                  {return new FalseLiteral(token);}
 | token = <NULL>                   {return new NullLiteral(token);}
+| literal = evaluableString()        {return literal;}
+}
+
+StringLiteral evaluableString() :
+{
+  ArrayList list = new ArrayList();
+  Token start,end;
+  Token token,lbrace,rbrace;
+  AbstractVariable var;
+  Expression expr;
+}
+{
+  start = <DOUBLEQUOTE>
+  (
+   <DOLLARS>
+       (
+        token = <IDENTIFIER> {list.add(new Variable(token.image,
+                                                    token.sourceStart,
+                                                    token.sourceEnd));}
+        |
+         lbrace = <LBRACE1>
+         token = <ID>
+         {list.add(new Variable(token.image,
+                                token.sourceStart,
+                                token.sourceEnd));}
+         rbrace = <RBRACE1>
+       )
+   )*
+  end = <DOUBLEQUOTE2>
+  {
+  AbstractVariable[] vars = new AbstractVariable[list.size()];
+  list.toArray(vars);
+  return new StringLiteral(SimpleCharStream.currentBuffer.substring(start.sourceEnd,end.sourceStart),
+                           start.sourceStart,
+                           end.sourceEnd,
+                           vars);
+  }
 }
 
 FunctionCall Arguments(final Expression func) :