[Cpptool-cvs] rfta/src/rfta ParserTools.cpp,1.3,1.4

[<net...@us...>]

Update of /cvsroot/cpptool/rfta/src/rfta
In directory sc8-pr-cvs1:/tmp/cvs-serv9381/src/rfta

Modified Files:
	ParserTools.cpp 
Log Message:
-- added identifier reader

Index: ParserTools.cpp
===================================================================
RCS file: /cvsroot/cpptool/rfta/src/rfta/ParserTools.cpp,v
retrieving revision 1.3
retrieving revision 1.4
diff -C2 -d -r1.3 -r1.4
*** ParserTools.cpp	22 Dec 2002 16:03:52 -0000	1.3
--- ParserTools.cpp	28 Apr 2003 11:03:57 -0000	1.4
***************
*** 55,58 ****
--- 55,104 ----
  }
  
+ bool RFTAPARSER_API 
+ tryReadIdentifier( Xtl::CStringEnumerator &enumerator, Xtl::CStringView& identifier )
+ {
+    if ( !enumerator.hasNext() )
+       return false;
+ 
+    Xtl::CStringEnumerator identifierStart = enumerator;
+    identifier = enumerator.getString();
+    if ( isValidIdentifierFirstLetter( *enumerator ) )
+    {
+       enumerator++;
+       while ( enumerator.hasNext()  &&  isIdentifierLetter( *enumerator ) )
+          enumerator++;
+    }
+ 
+    identifier.setEnd(enumerator.getCurrentPos());
+ 
+    return identifier.getLength() != 0;
+ }
+ 
+ std::string RFTAPARSER_API 
+ tryReadKeyword(   Xtl::CStringEnumerator &enumerator,
+                   std::set< std::string > keywords )
+ {
+    Xtl::CStringEnumerator rollback ( enumerator );
+ 
+    std::set< std::string >::iterator result;
+    Xtl::CStringView identifier;
+    if (!tryReadIdentifier(enumerator,identifier)) 
+    {
+       enumerator = rollback;
+       return std::string();
+    }
+ 
+    std::string idstr = identifier.str();
+    
+    std::set< std::string >::iterator it;
+    it = keywords.find(idstr);
+    if (it == keywords.end())
+    {
+       enumerator = rollback;
+       return std::string();
+    }
+    return idstr;
+ }
+ 
  
  } // namespace ParserTools