parameterised XPath class

SAX/SAX.vcproj

@@ -233,9 +233,6 @@
 				<File
 					RelativePath=".\helpers\PropertyNames.h">
 				</File>
-				<File
-					RelativePath=".\helpers\StringAdaptor.h">
-				</File>
 				<File
 					RelativePath=".\helpers\XMLBaseSupport.h">
 				</File>
@@ -377,6 +374,9 @@
 			<File
 				RelativePath="..\Utils\socket_stream.h">
 			</File>
+			<File
+				RelativePath="..\Utils\StringAdaptor.h">
+			</File>
 			<File
 				RelativePath="..\XML\UnicodeCharacters.h">
 			</File>
@@ -685,9 +685,6 @@
 				<File
 					RelativePath="..\Dom\Simple\ProcessingInstructionImpl.h">
 				</File>
-				<File
-					RelativePath="..\Dom\Simple\StringAdaptor.h">
-				</File>
 				<File
 					RelativePath="..\Dom\Simple\TextImpl.h">
 				</File>

XPath/XPath.hpp

@@ -12,7 +12,7 @@
 /* To parameterise
 
 DONE - xpath_arithmetic.hpp
-xpath_ast.hpp
+DONE - xpath_ast.hpp
 DONE - xpath_ast_ids.hpp
 xpath_axis_enumerator.hpp
 xpath_compile_context.hpp
@@ -34,6 +34,10 @@ xpath_step.hpp
 xpath_union.hpp
 xpath_value.hpp
 xpath_variable.hpp
-xpath_variable_resolver.hpp
+DONE - xpath_variable_resolver.hpp
+
+xpath_axis_enumerator.cpp
+xpath_object.cpp
+DONE - xpath_parser.cpp
 */
 #endif

XPath/impl/xpath_ast.hpp

@@ -18,10 +18,6 @@ typedef boost::spirit::tree_parse_info<str_iter_t> tree_info_t;
 long getNodeId(node_iter_t const& node);
 node_iter_t& skipWhitespace(node_iter_t& node);
 
-template<class string_type> class XPathExpression;
-class CompilationContext;
-XPathExpression<std::string>* compile_expression(node_iter_t const& i, CompilationContext& context);
-
 } // namespace XPath
 } // namespace Arabica
 #endif

XPath/impl/xpath_compile_context.hpp

@@ -6,14 +6,15 @@ namespace Arabica
 namespace XPath
 {
 
-class XPath;
+template<class string_type, class string_adaptor = Arabica::default_string_adaptor<string_type> > class XPath;
 class NamespaceContext;
 class FunctionResolver;
 
+template<class string_type>
 class CompilationContext
 {
 public:
-  CompilationContext(const XPath& xpathCompiler,
+  CompilationContext(const XPath<string_type>& xpathCompiler,
                      const NamespaceContext& namespaceContext,
                      const FunctionResolver& functionResolver) :
       xpath_(xpathCompiler),
@@ -22,12 +23,12 @@ public:
   { 
   } // CompilationContext
 
-  const XPath& xpath() const { return xpath_; }
+  const XPath<string_type>& xpath() const { return xpath_; }
   const NamespaceContext& namespaceContext() const { return namespaceContext_; }
   const FunctionResolver& functionResolver() const { return functionResolver_; }
 
 private:
-  const XPath& xpath_;
+  const XPath<string_type>& xpath_;
   const NamespaceContext& namespaceContext_;
   const FunctionResolver& functionResolver_;
 

XPath/impl/xpath_function_holder.hpp

@@ -70,7 +70,7 @@ public:
 
   static FunctionHolder* createFunction(const std::string& name, 
                                         const std::vector<XPathExpressionPtr<std::string> >& argExprs,
-                                        const CompilationContext& context)
+                                        const CompilationContext<std::string>& context)
   {
     for(const NamedFunction* fn = FunctionLookupTable; fn->name != 0; ++fn)
       if(name == fn->name)

XPath/impl/xpath_parser.hpp

@@ -5,7 +5,9 @@
 #include <boost/spirit/tree/ast.hpp>
 #include <string>
 #include <stdexcept>
+#include <map>
 #include "xpath_object.hpp"
+#include "xpath_expression.hpp"
 #include "xpath_ast.hpp"
 #include "xpath_grammar.hpp"
 #include "xpath_namespace_context.hpp"
@@ -36,29 +38,59 @@ public:
   UnsupportedException(const std::string& thing) : std::runtime_error("Sorry, haven't implemented '" + thing + "' yet") { }
 }; // class UnsupportedException
 
-class CompilationContext;
+template<class string_type> class CompilationContext;
 
+class StepExpression;
+typedef std::vector<StepExpression*> StepList;
+
+template<class string_type, class string_adaptor = Arabica::default_string_adaptor<string_type> >
 class XPath 
 {
 public:
-  XPath();
+  XPath()
-  ~XPath();
+  {
+    resetNamespaceContext();
+    resetVariableResolver();
+    resetFunctionResolver();
+  } // XPath
 
-  XPathExpressionPtr<std::string> compile(const std::string& xpath) const;
+  ~XPath()
-  XPathExpressionPtr<std::string> compile_expr(const std::string& xpath) const;
+  {
+  } // ~XPath
 
-  XPathValuePtr<std::string> evaluate(const std::string& xpath, const DOM::Node<std::string>& context) const;
+  XPathExpressionPtr<string_type> compile(const string_type& xpath) const
-  XPathValuePtr<std::string> evaluate_expr(const std::string& xpath, const DOM::Node<std::string>& context) const;
+  {
+    return do_compile(xpath, &XPath::parse_xpath);
+  } // compile
+
+  XPathExpressionPtr<string_type> compile_expr(const string_type& xpath) const
+  {
+    return do_compile(xpath, &XPath::parse_xpath_expr);
+  } // compile
+
+  XPathValuePtr<string_type> evaluate(const string_type& xpath, const DOM::Node<string_type>& context) const
+  {
+    ExecutionContext executionContext;
+    executionContext.setVariableResolver(getVariableResolver());
+    return compile(xpath)->evaluate(context, executionContext);
+  } // evaluate
+
+  XPathValuePtr<string_type> evaluate_expr(const string_type& xpath, const DOM::Node<string_type>& context) const
+  {
+    ExecutionContext executionContext;
+    executionContext.setVariableResolver(getVariableResolver());
+    return compile_expr(xpath)->evaluate(context, executionContext);
+  } // evaluate_expr
 
   void setNamespaceContext(const NamespaceContext& namespaceContext) { namespaceContext_.set(namespaceContext); }
   void setNamespaceContext(NamespaceContextPtr namespaceContext) { namespaceContext_.set(namespaceContext); }
   const NamespaceContext& getNamespaceContext() const { return namespaceContext_.get(); }
   void resetNamespaceContext() { namespaceContext_.set(NamespaceContextPtr(new NullNamespaceContext())); }
 
-  void setVariableResolver(const VariableResolver<std::string>& variableResolver) { variableResolver_.set(variableResolver); }
+  void setVariableResolver(const VariableResolver<string_type>& variableResolver) { variableResolver_.set(variableResolver); }
-  void setVariableResolver(VariableResolverPtr<std::string> variableResolver) { variableResolver_.set(variableResolver); }
+  void setVariableResolver(VariableResolverPtr<string_type> variableResolver) { variableResolver_.set(variableResolver); }
-  const VariableResolver<std::string>& getVariableResolver() const { return variableResolver_.get(); }
+  const VariableResolver<string_type>& getVariableResolver() const { return variableResolver_.get(); }
-  void resetVariableResolver() { variableResolver_.set(VariableResolverPtr<std::string>(new NullVariableResolver<std::string>())); }
+  void resetVariableResolver() { variableResolver_.set(VariableResolverPtr<string_type>(new NullVariableResolver<string_type>())); }
 
   void setFunctionResolver(const FunctionResolver& functionResolver) { functionResolver_.set(functionResolver); }
   void setFunctionResolver(FunctionResolverPtr functionResolver) { functionResolver_.set(functionResolver); }
@@ -66,25 +98,247 @@ public:
   void resetFunctionResolver() { functionResolver_.set(FunctionResolverPtr(new NullFunctionResolver())); }
 
 private:
-  XPathExpressionPtr<std::string> do_compile(const std::string& xpath, tree_info_t(XPath::*fn)(const std::string& str) const) const;
+  XPathExpressionPtr<string_type> do_compile(const string_type& xpath, 
-  tree_info_t parse_xpath(const std::string& str) const;
+                                             tree_info_t(XPath::*fn)(const string_type& str) const) const
-  tree_info_t parse_xpath_expr(const std::string& str) const;
+  {
+    tree_info_t ast;
+    try {
+      ast = (this->*fn)(xpath);
+      if(!ast.full)
+        throw SyntaxException(xpath);
+
+      CompilationContext<string_type> context(*this, getNamespaceContext(), getFunctionResolver());
+      return XPathExpressionPtr<std::string>(compile_expression(ast.trees.begin(), context));
+    } // try
+    catch(std::exception& ex) 
+    {
+      throw ex;
+    } // catch
+    catch(...) 
+    {
+      throw SyntaxException(xpath);
+    } // catch
+  } // do_compile
+
+  tree_info_t parse_xpath(const string_type& str) const
+  {
+    str_iter_t first = str.begin(), last = str.end();
+    return ast_parse(first, last, xpathg_);
+  } // parse_xpath
+
+  tree_info_t parse_xpath_expr(const string_type& str) const
+  {
+    str_iter_t first = str.begin(), last = str.end();
+    return ast_parse(first, last, xpathge_);
+  } // parse_xpath
 
   xpath_grammar xpathg_;
+  xpath_grammar_expr xpathge_;
 
   ResolverHolder<const NamespaceContext> namespaceContext_;
-  ResolverHolder<const VariableResolver<std::string> > variableResolver_;
+  ResolverHolder<const VariableResolver<string_type> > variableResolver_;
   ResolverHolder<const FunctionResolver> functionResolver_;
 
-  typedef XPathExpression<std::string>* (*compileFn)(node_iter_t const& i, CompilationContext& context);
+  /////////////////////////////////////////////////////////////////////////////////
-  static std::map<int, compileFn> factory_;
+public:
-  static std::map<int, std::string> names_;
+  static XPathExpression<string_type>* compile_expression(node_iter_t const& i, 
-  static const std::map<int, compileFn> createFunctions();
+                                                          CompilationContext<string_type>& context)
-  static const std::map<int, std::string> debugNames();
+  {
-  static void dump(node_iter_t const& i, int depth);
+    long id = getNodeId(i);
 
-  friend XPathExpression<std::string>* Arabica::XPath::compile_expression(node_iter_t const& i, CompilationContext& context);
+    if(XPath::factory().find(id) == XPath::factory().end())
+    {
+      XPath::dump(i, 0);
+      throw UnsupportedException(XPath::names()[id]);
+    }
   
+    return XPath::factory()[id](i, context);
+  } // compile_expression
+
+private:
+  static XPathExpression<string_type>* createAbsoluteLocationPath(node_iter_t const& i, CompilationContext<string_type>& context);
+  static XPathExpression<string_type>* createRelativeLocationPath(node_iter_t const& i, CompilationContext<string_type>& context);
+  static XPathExpression<string_type>* createSingleStepRelativeLocationPath(node_iter_t const& i, CompilationContext<string_type>& context);
+  static XPathExpression<string_type>* createExpression(node_iter_t const& i, CompilationContext<string_type>& context);
+  static XPathExpression<string_type>* createFunction(node_iter_t const& i, CompilationContext<string_type>& context);
+  static XPathExpression<string_type>* createBinaryExpression(node_iter_t const& i, CompilationContext<string_type>& context);
+  static XPathExpression<string_type>* createLiteral(node_iter_t const& i, CompilationContext<string_type>& context);
+  static XPathExpression<string_type>* createNumber(node_iter_t const& i, CompilationContext<string_type>& context);
+  static XPathExpression<string_type>* createVariable(node_iter_t const& i, CompilationContext<string_type>& context);
+  static XPathExpression<string_type>* createSingleStepAbsoluteLocationPath(node_iter_t const& i, CompilationContext<string_type>& context);
+  static XPathExpression<string_type>* createUnaryExpression(node_iter_t const& i, CompilationContext<string_type>& context);
+  static XPathExpression<string_type>* createUnaryNegativeExpr(node_iter_t const& i, CompilationContext<string_type>& context);
+
+  static StepList createStepList(node_iter_t const& from, node_iter_t const& to, CompilationContext<string_type>& context);
+
+  typedef XPathExpression<string_type>* (*compileFn)(node_iter_t const& i, CompilationContext<string_type>& context);
+  static std::map<int, compileFn>& factory()
+  {
+    static std::map<int, compileFn> f = init_createFunctions();
+    return f;
+  } // factory
+
+  static std::map<int, string_type>& names()
+  {
+    static std::map<int, string_type> n = init_debugNames();
+    return n;
+  } // names
+
+  static const std::map<int, compileFn> init_createFunctions()
+  {
+    std::map<int, XPath::compileFn> factory;
+
+    factory[impl::AbsoluteLocationPath_id] = createAbsoluteLocationPath;
+    factory[impl::RelativeLocationPath_id] = createRelativeLocationPath;
+    factory[impl::AbbreviatedAbsoluteLocationPath_id] = createAbsoluteLocationPath;
+    factory[impl::Step_id] = createRelativeLocationPath;
+    factory[impl::PathExpr_id] = createRelativeLocationPath;
+    factory[impl::FilterExpr_id] = createRelativeLocationPath;
+
+    factory[impl::PrimaryExpr_id] = createExpression;
+
+    factory[impl::FunctionCall_id] = createFunction;
+
+    factory[impl::AdditiveExpr_id] = createBinaryExpression;
+    factory[impl::MultiplicativeExpr_id] = createBinaryExpression;
+    factory[impl::EqualityExpr_id] = createBinaryExpression;
+    factory[impl::RelationalExpr_id] = createBinaryExpression;
+    factory[impl::OrExpr_id] = createBinaryExpression;
+    factory[impl::AndExpr_id] = createBinaryExpression;
+    factory[impl::UnionExpr_id] = createBinaryExpression;
+
+    factory[impl::Literal_id] = createLiteral;
+    factory[impl::Number_id] = createNumber;
+    factory[impl::Digits_id] = createNumber;
+
+    factory[impl::VariableReference_id] = createVariable;
+
+    factory[impl::NodeTest_id] = createSingleStepRelativeLocationPath;
+    factory[impl::QName_id] = createSingleStepRelativeLocationPath;
+    factory[impl::NCName_id] = createSingleStepRelativeLocationPath;
+    factory[impl::AnyName_id] = createSingleStepRelativeLocationPath;
+    factory[impl::Text_id] = createSingleStepRelativeLocationPath;
+    factory[impl::Comment_id] = createSingleStepRelativeLocationPath;
+    factory[impl::ProcessingInstruction_id] = createSingleStepRelativeLocationPath;
+    factory[impl::Slash_id] = createSingleStepAbsoluteLocationPath;
+
+    factory[impl::SelfSelect_id] = createSingleStepRelativeLocationPath;
+    factory[impl::ParentSelect_id] = createSingleStepRelativeLocationPath;
+
+    factory[impl::UnaryExpr_id] = createUnaryExpression;
+    factory[impl::UnaryMinusOperator_id] = createUnaryNegativeExpr;
+
+    return factory;
+  } // init_createFunctions
+
+  static const std::map<int, string_type> init_debugNames()
+  {
+    std::map<int, std::string> names;
+    
+    names[impl::LocationPath_id] = "LocationPath";
+    names[impl::AbsoluteLocationPath_id] = "AbsoluteLocationPath";
+    names[impl::RelativeLocationPath_id] = "RelativeLocationPath";
+    names[impl::Step_id] = "Step";
+    names[impl::AxisSpecifier_id] = "AxisSpecifier";
+    names[impl::NodeTest_id] = "NodeTest";
+    names[impl::Predicate_id] = "Predicate";
+    names[impl::PredicateExpr_id] = "PredicateExpr";
+    names[impl::AbbreviatedAbsoluteLocationPath_id] = "AbbreviatedAbsoluteLocationPath";
+    names[impl::AbbreviatedStep_id] = "AbbreviatedStep";
+    names[impl::AbbreviatedAxisSpecifier_id] = "AbbreviatedAxisSpecifier";
+    names[impl::Expr_id] = "Expr";
+    names[impl::PrimaryExpr_id] = "PrimaryExpr";
+    names[impl::FunctionCall_id] = "FunctionCall";
+    names[impl::Argument_id] = "Argument";
+    names[impl::UnionExpr_id] = "UnionExpr";
+    names[impl::PathExpr_id] = "PathExpr";
+    names[impl::FilterExpr_id] = "FilterExpr";
+    names[impl::OrExpr_id] = "OrExpr";
+    names[impl::AndExpr_id] = "AndExpr";
+    names[impl::EqualityExpr_id] = "EqualityExpr";
+    names[impl::RelationalExpr_id] = "RelationalExpr";
+    names[impl::AdditiveExpr_id] = "AdditiveExpr";
+    names[impl::MultiplicativeExpr_id] = "MultiplicativeExpr";
+    names[impl::UnaryExpr_id] = "UnaryExpr";
+    names[impl::Literal_id] = "Literal";
+    names[impl::Number_id] = "Number";
+    names[impl::Digits_id] = "Digits";
+    names[impl::MultiplyOperator_id] = "MultiplyOperator";
+    names[impl::FunctionName_id] = "FunctionName";
+    names[impl::VariableReference_id] = "VariableReference";
+    names[impl::NameTest_id] = "NameTest";
+    names[impl::S_id] = "S";
+    names[impl::NodeType_id] = "NodeType";
+    names[impl::AxisName_id] = "AxisName";
+
+    names[impl::QName_id] = "QName";
+    names[impl::Prefix_id] = "Prefix";
+    names[impl::LocalPart_id] = "LocalPart";
+    names[impl::NCName_id] = "NCName";
+    names[impl::NCNameChar_id] = "NCNameChar";
+
+    names[impl::Slash_id] = "/";
+    names[impl::SlashSlash_id] = "//";
+
+    names[impl::AncestorOrSelf_id] = "ancestor-or-self::";
+    names[impl::Ancestor_id] = "ancestor::";
+    names[impl::Attribute_id] = "attribute::";
+    names[impl::Child_id] = "child::";
+    names[impl::DescendantOrSelf_id] = "descendant-or-self::";
+    names[impl::Descendant_id] = "descendant::";
+    names[impl::FollowingSibling_id] = "following-sibling::";
+    names[impl::Following_id] = "following::";
+    names[impl::Namespace_id] = "namespace::";
+    names[impl::Parent_id] = "parent::";
+    names[impl::PrecedingSibling_id] = "preceding-sibling::";
+    names[impl::Preceding_id] = "preceding::";
+    names[impl::Self_id] = "self::";
+
+    names[impl::Comment_id] = "comment()";
+    names[impl::Text_id] = "text()";
+    names[impl::ProcessingInstruction_id] = "processing-instruction()";
+    names[impl::Node_id] = "node()";
+    names[impl::AnyName_id] = "AnyName";
+
+    names[impl::SelfSelect_id] = "SelfSelect";
+    names[impl::ParentSelect_id] = "ParentSelect";
+
+    names[impl::LeftSquare_id] = "[";
+    names[impl::RightSquare_id] = "]";
+
+    names[impl::LeftBracket_id] = "(";
+    names[impl::RightBracket_id] = ")";
+
+    names[impl::PlusOperator_id] = "+";
+    names[impl::MinusOperator_id] = "-";
+    names[impl::ModOperator_id] = "mod";
+    names[impl::DivOperator_id] = "div";
+    names[impl::EqualsOperator_id] = "=";
+    names[impl::NotEqualsOperator_id] = "!=";
+    names[impl::LessThanOperator_id] = "<";
+    names[impl::LessThanEqualsOperator_id] = "<=";
+    names[impl::GreaterThanOperator_id] = ">";
+    names[impl::GreaterThanEqualsOperator_id] = ">=";
+
+    names[impl::OrOperator_id] = "or";
+    names[impl::AndOperator_id] = "and";
+    names[impl::UnionOperator_id] = "union";
+    names[impl::UnaryMinusOperator_id] = "minus";
+
+    return names;
+  } // init_debugNames
+  
+  static void dump(node_iter_t const& i, int depth)
+  {
+    long id = static_cast<long>(i->value.id().to_long());
+
+    for(int d = 0; d < depth; ++d)
+      std::cerr << ' ';
+    std::cerr << names()[id] << " - " << std::string(i->value.begin(), i->value.end()) << std::endl;
+
+    for(node_iter_t c = i->children.begin(); c != i->children.end(); ++c)
+      dump(c, depth+2);
+  } // dump
 
   XPath(const XPath&);
   XPath& operator=(const XPath&);
@@ -95,4 +349,216 @@ private:
 
 } // namespace Arabica
 
+#include <boost/lexical_cast.hpp>
+#include "xpath_value.hpp"
+#include "xpath_arithmetic.hpp"
+#include "xpath_relational.hpp"
+#include "xpath_logical.hpp"
+#include "xpath_step.hpp"
+#include "xpath_compile_context.hpp"
+#include "xpath_variable.hpp"
+#include "xpath_function_holder.hpp"
+#include "xpath_union.hpp"
+
+namespace Arabica
+{
+
+namespace XPath
+{
+
+template<class string_type, class string_adaptor>
+XPathExpression<string_type>* XPath<string_type, string_adaptor>::createAbsoluteLocationPath(node_iter_t const& i, CompilationContext<string_type>& context)
+{
+  return new AbsoluteLocationPath(createStepList(i->children.begin(), i->children.end(), context));
+} // createAbsoluteLocationPath
+
+template<class string_type, class string_adaptor>
+XPathExpression<string_type>* XPath<string_type, string_adaptor>::createRelativeLocationPath(node_iter_t const& i, CompilationContext<string_type>& context)
+{
+  return new RelativeLocationPath(createStepList(i->children.begin(), i->children.end(), context));
+} // createRelativeLocationPath
+
+template<class string_type, class string_adaptor>
+XPathExpression<string_type>* XPath<string_type, string_adaptor>::createSingleStepRelativeLocationPath(node_iter_t const& i, CompilationContext<string_type>& context)
+{
+  node_iter_t n = i;
+  return new RelativeLocationPath(StepFactory::createStep(n, context));
+} // createSingleStepRelativeLocationPath
+
+template<class string_type, class string_adaptor>
+XPathExpression<string_type>* XPath<string_type, string_adaptor>::createExpression(node_iter_t const& i, CompilationContext<string_type>& context)
+{
+  node_iter_t c = i->children.begin();
+  skipWhitespace(c);
+  return XPath<string_type, string_adaptor>::compile_expression(c, context);
+} // createExpression
+
+template<class string_type, class string_adaptor>
+XPathExpression<string_type>* XPath<string_type, string_adaptor>::createFunction(node_iter_t const& i, CompilationContext<string_type>& context)
+{
+  node_iter_t c = i->children.begin();
+  string_type name(c->value.begin(), c->value.end());
+  ++c;
+  skipWhitespace(c);
+  assert(getNodeId(c) == impl::LeftBracket_id);
+  ++c;
+  skipWhitespace(c);
+
+  std::vector<XPathExpressionPtr<string_type> > args;
+  while(getNodeId(c) != impl::RightBracket_id)
+  {
+    XPathExpressionPtr<string_type> arg(XPath<string_type, string_adaptor>::compile_expression(c++, context));
+    args.push_back(arg);
+
+    skipWhitespace(c);
+  } // while ...
+  // maybe trailing whitespace ...
+
+  return FunctionHolder::createFunction(name, args, context);
+} // createFunction
+
+template<class string_type, class string_adaptor>
+XPathExpression<string_type>* XPath<string_type, string_adaptor>::createBinaryExpression(node_iter_t const& i, CompilationContext<string_type>& context)
+{
+  node_iter_t c = i->children.begin();
+  XPathExpression<string_type>* p1 = XPath<string_type, string_adaptor>::compile_expression(c, context);
+  ++c;
+
+  do
+  {
+    long op = getNodeId(c);
+    ++c;
+    XPathExpression<string_type>* p2 = XPath<string_type, string_adaptor>::compile_expression(c, context);
+
+    switch(op)
+    {
+      case impl::PlusOperator_id:
+        p1 = new PlusOperator<string_type>(p1, p2);
+        break;
+      case impl::MinusOperator_id:
+        p1 = new MinusOperator<string_type>(p1, p2);
+        break;
+      case impl::MultiplyOperator_id:
+        p1 = new MultiplyOperator<string_type>(p1, p2);
+        break;
+      case impl::DivOperator_id:
+        p1 = new DivideOperator<string_type>(p1, p2);
+        break;
+      case impl::ModOperator_id:
+        p1 = new ModOperator<string_type>(p1, p2);
+        break;
+      case impl::EqualsOperator_id:
+        p1 = new EqualsOperator(p1, p2);
+        break;
+      case impl::NotEqualsOperator_id:
+        p1 = new NotEqualsOperator(p1, p2);
+        break;
+      case impl::LessThanOperator_id:
+        p1 = new LessThanOperator(p1, p2);
+        break;
+      case impl::LessThanEqualsOperator_id:
+        p1 = new LessThanEqualsOperator(p1, p2);
+        break;
+      case impl::GreaterThanOperator_id:
+        p1 = new GreaterThanOperator(p1, p2);
+        break;
+      case impl::GreaterThanEqualsOperator_id:
+        p1 = new GreaterThanEqualsOperator(p1, p2);
+        break;
+      case impl::OrOperator_id:
+        p1 = new OrOperator(p1, p2);
+        break;
+      case impl::AndOperator_id:
+        p1 = new AndOperator(p1, p2);
+        break;
+      case impl::UnionOperator_id:
+        p1 = new UnionExpression(p1, p2);
+        break;
+      default:
+        throw UnsupportedException(boost::lexical_cast<string_type>(op));
+    } // switch
+  } 
+  while(++c != i->children.end());
+
+  return p1;
+} // createBinaryExpression
+
+template<class string_type, class string_adaptor>
+XPathExpression<string_type>* XPath<string_type, string_adaptor>::createLiteral(node_iter_t const& i, CompilationContext<string_type>& context)
+{
+  string_type str(i->value.begin(), i->value.end());
+  return new StringValue(str);
+} // createLiteral
+
+template<class string_type, class string_adaptor>
+XPathExpression<string_type>* XPath<string_type, string_adaptor>::createNumber(node_iter_t const& i, CompilationContext<string_type>& context)
+{
+  return new NumericValue(boost::lexical_cast<double>(string_type(i->value.begin(), i->value.end())));
+} // createNumber
+
+template<class string_type, class string_adaptor>
+XPathExpression<string_type>* XPath<string_type, string_adaptor>::createVariable(node_iter_t const& i, CompilationContext<string_type>& context)
+{
+  return new Variable(string_type(i->value.begin()+1, i->value.end())); // skip $
+} // createVariable
+
+template<class string_type, class string_adaptor>
+XPathExpression<string_type>* XPath<string_type, string_adaptor>::createSingleStepAbsoluteLocationPath(node_iter_t const& i, CompilationContext<string_type>& context)
+{
+  node_iter_t n = i;
+  return new AbsoluteLocationPath(StepFactory::createStep(n, context));
+} // createSingleStepAbsoluteLocationPath
+
+template<class string_type, class string_adaptor>
+XPathExpression<string_type>* XPath<string_type, string_adaptor>::createUnaryExpression(node_iter_t const& i, CompilationContext<string_type>& context)
+{
+  return XPath<string_type, string_adaptor>::compile_expression(i->children.begin(), context);
+} // createUnaryExpression
+
+template<class string_type, class string_adaptor>
+XPathExpression<string_type>* XPath<string_type, string_adaptor>::createUnaryNegativeExpr(node_iter_t const& i, CompilationContext<string_type>& context)
+{
+  return new UnaryNegative<string_type>(XPath<string_type, string_adaptor>::compile_expression(i+1, context));
+} // createUnaryNegativeExpr
+
+template<class string_type, class string_adaptor>
+StepList XPath<string_type, string_adaptor>::createStepList(node_iter_t const& from, 
+                                                            node_iter_t const& to, 
+                                                            CompilationContext<string_type>& context)
+{
+  StepList steps;
+
+  node_iter_t c = from;
+  node_iter_t end = to;
+
+  while(c != end)
+    switch(getNodeId(c))
+    {
+      case impl::S_id:
+      case impl::Slash_id:
+        ++c; // just drop it
+        break;
+      case impl::RelativeLocationPath_id:
+        // might get here when handling an absolute path
+        end = c->children.end();
+        c = c->children.begin();
+        break;
+      case impl::Step_id:
+        {
+          node_iter_t step = c->children.begin();
+          steps.push_back(StepFactory::createStep(step, c->children.end(), context));
+          ++c;
+        }
+        break;
+      default:
+        steps.push_back(StepFactory::createStep(c, end, context));
+    } // switch(getNodeId(c))
+
+  return steps;
+} // createStepList
+
+} // namespace XPath
+
+} // namespace Arabica
+
 #endif

XPath/impl/xpath_step.hpp

@@ -177,13 +177,13 @@ private:
 class StepFactory
 {
 public:
-  static StepExpression* createStep(node_iter_t& node, node_iter_t const& end, CompilationContext& context)
+  static StepExpression* createStep(node_iter_t& node, node_iter_t const& end, CompilationContext<std::string>& context)
   {
     Axis axis = getAxis(node);
     NodeTest* test = getTest(node, context.namespaceContext());
     XPathExpression<std::string>* thing = 0;
     if(!test)
-      thing = compile_expression(node++, context);
+      thing = XPath<std::string>::compile_expression(node++, context);
 
     std::vector<XPathExpression<std::string>*> preds;
 
@@ -192,7 +192,7 @@ public:
       node_iter_t c = node->children.begin();
       assert(getNodeId(c) == impl::LeftSquare_id);
       ++c;
-      preds.push_back(compile_expression(c, context));
+      preds.push_back(XPath<std::string>::compile_expression(c, context));
       ++c;
       assert(getNodeId(c) == impl::RightSquare_id);
       
@@ -203,7 +203,7 @@ public:
     return new TestStepExpression(axis, test, preds);
   } // createStep
 
-  static StepExpression* createStep(node_iter_t& node, CompilationContext& context)
+  static StepExpression* createStep(node_iter_t& node, CompilationContext<std::string>& context)
   {
     Axis axis = getAxis(node);
     NodeTest* test = getTest(node, context.namespaceContext());
@@ -366,9 +366,6 @@ private:
 
 class RelativeLocationPath : public XPathExpression<std::string>
 {
-public:
-  typedef std::vector<StepExpression*> StepList;
-
 public:
   RelativeLocationPath(StepExpression* step) : steps_() { steps_.push_back(step); }
   RelativeLocationPath(const StepList& steps) : steps_(steps) { }
@@ -401,7 +398,7 @@ class AbsoluteLocationPath : public RelativeLocationPath
 {
 public:
   AbsoluteLocationPath(StepExpression* step) : RelativeLocationPath(step) { }
-  AbsoluteLocationPath(const RelativeLocationPath::StepList& steps) : RelativeLocationPath(steps) { }
+  AbsoluteLocationPath(const StepList& steps) : RelativeLocationPath(steps) { }
 
   virtual XPathValuePtr<std::string> evaluate(const DOM::Node<std::string>& context, const ExecutionContext& executionContext) const
   {

XPath/src/xpath_parser.cpp

@@ -2,464 +2,26 @@
 #pragma warning(disable:4224 4180 4244)
 #endif 
 
-#include <iostream>
-#include <map>
-#include <boost/lexical_cast.hpp>
 #include <XPath/impl/xpath_parser.hpp>
-#include <XPath/impl/xpath_value.hpp>
-#include <XPath/impl/xpath_arithmetic.hpp>
-#include <XPath/impl/xpath_relational.hpp>
-#include <XPath/impl/xpath_logical.hpp>
-#include <XPath/impl/xpath_step.hpp>
-#include <XPath/impl/xpath_compile_context.hpp>
-#include <XPath/impl/xpath_variable.hpp>
-#include <XPath/impl/xpath_function_holder.hpp>
-#include <XPath/impl/xpath_union.hpp>
 
-using namespace Arabica::XPath;
+namespace Arabica
+{
+namespace XPath
+{
 
-long Arabica::XPath::getNodeId(node_iter_t const& node)
+long getNodeId(node_iter_t const& node)
 {
   return static_cast<long>(node->value.id().to_long());
 } // getNodeId
 
-node_iter_t& Arabica::XPath::skipWhitespace(node_iter_t& node)
+node_iter_t& skipWhitespace(node_iter_t& node)
 {
   while(getNodeId(node) == impl::S_id)
     ++node;
   return node;
 } // skipWhitespace
 
-XPath::XPath()
+} // namespace XPath
-{
-  resetNamespaceContext();
-  resetVariableResolver();
-  resetFunctionResolver();
-} // XPath
-
-XPath::~XPath()
-{
-} // ~XPath
-
-std::map<int, std::string> XPath::names_ = debugNames();
-std::map<int, XPath::compileFn> XPath::factory_ = createFunctions();
-
-void XPath::dump(node_iter_t const& i, int depth)
-{
-  long id = static_cast<long>(i->value.id().to_long());
-
-  for(int d = 0; d < depth; ++d)
-    std::cout << ' ';
-  std::cout << names_[id] << " - " << std::string(i->value.begin(), i->value.end()) << std::endl;
-
-  for(node_iter_t c = i->children.begin(); c != i->children.end(); ++c)
-    dump(c, depth+2);
-} // dump
-
-XPathExpression<std::string>* createExpression(node_iter_t const& i, CompilationContext& context)
-{
-  node_iter_t c = i->children.begin();
-  skipWhitespace(c);
-  return compile_expression(c, context);
-} // createExpression
-
-XPathExpression<std::string>* createFunction(node_iter_t const& i, CompilationContext& context)
-{
-//  dump(i);
-  node_iter_t c = i->children.begin();
-  std::string name(c->value.begin(), c->value.end());
-  ++c;
-  skipWhitespace(c);
-  assert(getNodeId(c) == impl::LeftBracket_id);
-  ++c;
-  skipWhitespace(c);
-
-  std::vector<XPathExpressionPtr<std::string> > args;
-  while(getNodeId(c) != impl::RightBracket_id)
-  {
-    XPathExpressionPtr<std::string> arg(compile_expression(c++, context));
-    args.push_back(arg);
-
-    skipWhitespace(c);
-  } // while ...
-  // maybe trailing whitespace ...
-
-  return FunctionHolder::createFunction(name, args, context);
-} // createFunction
-
-XPathExpression<std::string>* createNumber(node_iter_t const& i, CompilationContext& context)
-{
-  return new NumericValue(boost::lexical_cast<double>(std::string(i->value.begin(), i->value.end())));
-} // createNumber
-
-XPathExpression<std::string>* createVariable(node_iter_t const& i, CompilationContext& context)
-{
-  return new Variable(std::string(i->value.begin()+1, i->value.end())); // skip $
-} // createVariable
-
-XPathExpression<std::string>* createLiteral(node_iter_t const& i, CompilationContext& context)
-{
-  std::string str(i->value.begin(), i->value.end());
-  return new StringValue(str);
-} // createLiteral
-
-XPathExpression<std::string>* createBinaryExpression(node_iter_t const& i, CompilationContext& context)
-{
-  node_iter_t c = i->children.begin();
-  XPathExpression<std::string>* p1 = compile_expression(c, context);
-  ++c;
-
-  do
-  {
-    long op = getNodeId(c);
-    ++c;
-    XPathExpression<std::string>* p2 = compile_expression(c, context);
-
-    switch(op)
-    {
-      case impl::PlusOperator_id:
-        p1 = new PlusOperator<std::string>(p1, p2);
-        break;
-      case impl::MinusOperator_id:
-        p1 = new MinusOperator<std::string>(p1, p2);
-        break;
-      case impl::MultiplyOperator_id:
-        p1 = new MultiplyOperator<std::string>(p1, p2);
-        break;
-      case impl::DivOperator_id:
-        p1 = new DivideOperator<std::string>(p1, p2);
-        break;
-      case impl::ModOperator_id:
-        p1 = new ModOperator<std::string>(p1, p2);
-        break;
-      case impl::EqualsOperator_id:
-        p1 = new EqualsOperator(p1, p2);
-        break;
-      case impl::NotEqualsOperator_id:
-        p1 = new NotEqualsOperator(p1, p2);
-        break;
-      case impl::LessThanOperator_id:
-        p1 = new LessThanOperator(p1, p2);
-        break;
-      case impl::LessThanEqualsOperator_id:
-        p1 = new LessThanEqualsOperator(p1, p2);
-        break;
-      case impl::GreaterThanOperator_id:
-        p1 = new GreaterThanOperator(p1, p2);
-        break;
-      case impl::GreaterThanEqualsOperator_id:
-        p1 = new GreaterThanEqualsOperator(p1, p2);
-        break;
-      case impl::OrOperator_id:
-        p1 = new OrOperator(p1, p2);
-        break;
-      case impl::AndOperator_id:
-        p1 = new AndOperator(p1, p2);
-        break;
-      case impl::UnionOperator_id:
-        p1 = new UnionExpression(p1, p2);
-        break;
-      default:
-        throw UnsupportedException(boost::lexical_cast<std::string>(op));
-    } // switch
-  } 
-  while(++c != i->children.end());
-
-  return p1;
-} // createBinaryExpression
-
-RelativeLocationPath::StepList createStepList(node_iter_t const& from, node_iter_t const& to, CompilationContext& context)
-{
-  RelativeLocationPath::StepList steps;
-
-  node_iter_t c = from;
-  node_iter_t end = to;
-
-  while(c != end)
-    switch(getNodeId(c))
-    {
-      case impl::S_id:
-      case impl::Slash_id:
-        ++c; // just drop it
-        break; 
-      case impl::RelativeLocationPath_id:
-        // might get here when handling an absolute path
-        end = c->children.end();
-        c = c->children.begin();
-        break;
-      case impl::Step_id:
-        {
-          node_iter_t step = c->children.begin();
-          steps.push_back(StepFactory::createStep(step, c->children.end(), context));
-          ++c;
-        }
-        break;
-      default:
-        steps.push_back(StepFactory::createStep(c, end, context));
-    } // switch(getNodeId(c))
-
-  return steps;
-} // createStepList
-
-XPathExpression<std::string>* createAbsoluteLocationPath(node_iter_t const& i, CompilationContext& context)
-{
-  return new AbsoluteLocationPath(createStepList(i->children.begin(), i->children.end(), context));
-} // createAbsoluteLocationPath
-
-XPathExpression<std::string>* createRelativeLocationPath(node_iter_t const& i, CompilationContext& context)
-{
-  return new RelativeLocationPath(createStepList(i->children.begin(), i->children.end(), context));
-} // createRelativeLocationPath
-
-XPathExpression<std::string>* createSingleStepRelativeLocationPath(node_iter_t const& i, CompilationContext& context)
-{
-  node_iter_t n = i;
-  return new RelativeLocationPath(StepFactory::createStep(n, context));
-} // createSingleStepRelativeLocationPath
-
-XPathExpression<std::string>* createSingleStepAbsoluteLocationPath(node_iter_t const& i, CompilationContext& context)
-{
-  node_iter_t n = i;
-  return new AbsoluteLocationPath(StepFactory::createStep(n, context));
-} // createSingleStepAbsoluteLocationPath
-
-XPathExpression<std::string>* createUnaryExpression(node_iter_t const& i, CompilationContext& context)
-{
-  return compile_expression(i->children.begin(), context);
-} // createUnaryExpression
-
-XPathExpression<std::string>* createUnaryNegativeExpr(node_iter_t const& i, CompilationContext& context)
-{
-  return new UnaryNegative<std::string>(compile_expression(i+1, context));
-} // createUnaryNegativeExpr
-
-XPathExpressionPtr<std::string> XPath::compile(const std::string& xpath) const
-{
-  return do_compile(xpath, &XPath::parse_xpath);
-} // compile
-
-XPathExpressionPtr<std::string> XPath::compile_expr(const std::string& xpath) const
-{
-  return do_compile(xpath, &XPath::parse_xpath_expr);
-} // compile_expr
-
-XPathExpressionPtr<std::string> XPath::do_compile(const std::string& xpath, tree_info_t(XPath::*fn)(const std::string& str) const) const
-{
-  debugNames();
-  createFunctions();
-  tree_info_t ast;
-  try {
-    ast = (this->*fn)(xpath);
-    if(!ast.full)
-      throw SyntaxException(xpath);
-
-    CompilationContext context(*this, getNamespaceContext(), getFunctionResolver());
-    return XPathExpressionPtr<std::string>(compile_expression(ast.trees.begin(), context));
-  } // try
-  catch(std::exception& ex) 
-  {
-    //dump(ast.trees.begin());
-    std::cerr << "\n\t'" << xpath << "' threw " << ex.what() << '\n' << std::endl;
-    throw SyntaxException(xpath);
-  }
-  catch(...) 
-  {
-    std::cerr << "\n\t'" << xpath << "' threw something\n" << std::endl;
-    throw SyntaxException(xpath);
-  }
-} // compile
-
-tree_info_t XPath::parse_xpath(const std::string& str) const
-{
-  str_iter_t first = str.begin();
-  str_iter_t last = str.end();
-
-  return ast_parse(first, last, xpathg_);
-} // parse_xpath
-
-tree_info_t XPath::parse_xpath_expr(const std::string& str) const
-{
-  str_iter_t first = str.begin();
-  str_iter_t last = str.end();
-
-  xpath_grammar_expr xpathg;
-  return ast_parse(first, last, xpathg);
-} // parse_xpath_expr
-
-XPathValuePtr<std::string> XPath::evaluate(const std::string& xpath, const DOM::Node<std::string>& context) const
-{
-  ExecutionContext executionContext;
-  executionContext.setVariableResolver(getVariableResolver());
-
-  return compile(xpath)->evaluate(context, executionContext);
-} // evaluate
-
-XPathValuePtr<std::string> XPath::evaluate_expr(const std::string& xpath, const DOM::Node<std::string>& context) const
-{
-  ExecutionContext executionContext;
-  executionContext.setVariableResolver(getVariableResolver());
-
-  return compile_expr(xpath)->evaluate(context, executionContext);
-} // evaluate_expr
-
-XPathExpression<std::string>* Arabica::XPath::compile_expression(node_iter_t const& i, CompilationContext& context)
-{
-  //dump(i);
-
-  long id = getNodeId(i);
-
-  if(XPath::factory_.find(id) == XPath::factory_.end())
-  {
-  //return XPathExpressionPtr<std::string>();
-    XPath::dump(i, 0);
-    throw UnsupportedException(XPath::names_[id]);
-  }
-  
-  return XPath::factory_[id](i, context);
-} // compile_expression
-
-const std::map<int, XPath::compileFn> XPath::createFunctions()
-{
-  std::map<int, XPath::compileFn> factory;
-
-  factory[impl::AbsoluteLocationPath_id] = createAbsoluteLocationPath;
-  factory[impl::RelativeLocationPath_id] = createRelativeLocationPath;
-  factory[impl::AbbreviatedAbsoluteLocationPath_id] = createAbsoluteLocationPath;
-  factory[impl::Step_id] = createRelativeLocationPath;
-  factory[impl::PathExpr_id] = createRelativeLocationPath;
-  factory[impl::FilterExpr_id] = createRelativeLocationPath;
-
-  factory[impl::PrimaryExpr_id] = createExpression;
-
-  factory[impl::FunctionCall_id] = createFunction;
-
-  factory[impl::AdditiveExpr_id] = createBinaryExpression;
-  factory[impl::MultiplicativeExpr_id] = createBinaryExpression;
-  factory[impl::EqualityExpr_id] = createBinaryExpression;
-  factory[impl::RelationalExpr_id] = createBinaryExpression;
-  factory[impl::OrExpr_id] = createBinaryExpression;
-  factory[impl::AndExpr_id] = createBinaryExpression;
-  factory[impl::UnionExpr_id] = createBinaryExpression;
-
-  factory[impl::Literal_id] = createLiteral;
-  factory[impl::Number_id] = createNumber;
-  factory[impl::Digits_id] = createNumber;
-
-  factory[impl::VariableReference_id] = createVariable;
-
-  factory[impl::NodeTest_id] = createSingleStepRelativeLocationPath;
-  factory[impl::QName_id] = createSingleStepRelativeLocationPath;
-  factory[impl::NCName_id] = createSingleStepRelativeLocationPath;
-  factory[impl::AnyName_id] = createSingleStepRelativeLocationPath;
-  factory[impl::Text_id] = createSingleStepRelativeLocationPath;
-  factory[impl::Comment_id] = createSingleStepRelativeLocationPath;
-  factory[impl::ProcessingInstruction_id] = createSingleStepRelativeLocationPath;
-  factory[impl::Slash_id] = createSingleStepAbsoluteLocationPath;
-
-  factory[impl::SelfSelect_id] = createSingleStepRelativeLocationPath;
-  factory[impl::ParentSelect_id] = createSingleStepRelativeLocationPath;
-
-  factory[impl::UnaryExpr_id] = createUnaryExpression;
-  factory[impl::UnaryMinusOperator_id] = createUnaryNegativeExpr;
-
-  return factory;
-} // createFunctions
-
-const std::map<int, std::string> XPath::debugNames()
-{
-  std::map<int, std::string> names;
-  
-  names[impl::LocationPath_id] = "LocationPath";
-  names[impl::AbsoluteLocationPath_id] = "AbsoluteLocationPath";
-  names[impl::RelativeLocationPath_id] = "RelativeLocationPath";
-  names[impl::Step_id] = "Step";
-  names[impl::AxisSpecifier_id] = "AxisSpecifier";
-  names[impl::NodeTest_id] = "NodeTest";
-  names[impl::Predicate_id] = "Predicate";
-  names[impl::PredicateExpr_id] = "PredicateExpr";
-  names[impl::AbbreviatedAbsoluteLocationPath_id] = "AbbreviatedAbsoluteLocationPath";
-  names[impl::AbbreviatedStep_id] = "AbbreviatedStep";
-  names[impl::AbbreviatedAxisSpecifier_id] = "AbbreviatedAxisSpecifier";
-  names[impl::Expr_id] = "Expr";
-  names[impl::PrimaryExpr_id] = "PrimaryExpr";
-  names[impl::FunctionCall_id] = "FunctionCall";
-  names[impl::Argument_id] = "Argument";
-  names[impl::UnionExpr_id] = "UnionExpr";
-  names[impl::PathExpr_id] = "PathExpr";
-  names[impl::FilterExpr_id] = "FilterExpr";
-  names[impl::OrExpr_id] = "OrExpr";
-  names[impl::AndExpr_id] = "AndExpr";
-  names[impl::EqualityExpr_id] = "EqualityExpr";
-  names[impl::RelationalExpr_id] = "RelationalExpr";
-  names[impl::AdditiveExpr_id] = "AdditiveExpr";
-  names[impl::MultiplicativeExpr_id] = "MultiplicativeExpr";
-  names[impl::UnaryExpr_id] = "UnaryExpr";
-  names[impl::Literal_id] = "Literal";
-  names[impl::Number_id] = "Number";
-  names[impl::Digits_id] = "Digits";
-  names[impl::MultiplyOperator_id] = "MultiplyOperator";
-  names[impl::FunctionName_id] = "FunctionName";
-  names[impl::VariableReference_id] = "VariableReference";
-  names[impl::NameTest_id] = "NameTest";
-  names[impl::S_id] = "S";
-  names[impl::NodeType_id] = "NodeType";
-  names[impl::AxisName_id] = "AxisName";
-
-  names[impl::QName_id] = "QName";
-  names[impl::Prefix_id] = "Prefix";
-  names[impl::LocalPart_id] = "LocalPart";
-  names[impl::NCName_id] = "NCName";
-  names[impl::NCNameChar_id] = "NCNameChar";
-
-  names[impl::Slash_id] = "/";
-  names[impl::SlashSlash_id] = "//";
-
-  names[impl::AncestorOrSelf_id] = "ancestor-or-self::";
-  names[impl::Ancestor_id] = "ancestor::";
-  names[impl::Attribute_id] = "attribute::";
-  names[impl::Child_id] = "child::";
-  names[impl::DescendantOrSelf_id] = "descendant-or-self::";
-  names[impl::Descendant_id] = "descendant::";
-  names[impl::FollowingSibling_id] = "following-sibling::";
-  names[impl::Following_id] = "following::";
-  names[impl::Namespace_id] = "namespace::";
-  names[impl::Parent_id] = "parent::";
-  names[impl::PrecedingSibling_id] = "preceding-sibling::";
-  names[impl::Preceding_id] = "preceding::";
-  names[impl::Self_id] = "self::";
-
-  names[impl::Comment_id] = "comment()";
-  names[impl::Text_id] = "text()";
-  names[impl::ProcessingInstruction_id] = "processing-instruction()";
-  names[impl::Node_id] = "node()";
-  names[impl::AnyName_id] = "AnyName";
-
-  names[impl::SelfSelect_id] = "SelfSelect";
-  names[impl::ParentSelect_id] = "ParentSelect";
-
-  names[impl::LeftSquare_id] = "[";
-  names[impl::RightSquare_id] = "]";
-
-  names[impl::LeftBracket_id] = "(";
-  names[impl::RightBracket_id] = ")";
-
-  names[impl::PlusOperator_id] = "+";
-  names[impl::MinusOperator_id] = "-";
-  names[impl::ModOperator_id] = "mod";
-  names[impl::DivOperator_id] = "div";
-  names[impl::EqualsOperator_id] = "=";
-  names[impl::NotEqualsOperator_id] = "!=";
-  names[impl::LessThanOperator_id] = "<";
-  names[impl::LessThanEqualsOperator_id] = "<=";
-  names[impl::GreaterThanOperator_id] = ">";
-  names[impl::GreaterThanEqualsOperator_id] = ">=";
-
-  names[impl::OrOperator_id] = "or";
-  names[impl::AndOperator_id] = "and";
-  names[impl::UnionOperator_id] = "union";
-  names[impl::UnaryMinusOperator_id] = "minus";
-
-  return names;
-} // debugNames
 
+} // namespace Arabica
 // end 

examples/XPath/xgrep.cpp

@@ -19,7 +19,7 @@ int main(int argc, char* argv[])
     return 0;
   } // if(argc < 3)
 
-  Arabica::XPath::XPath xpathParser;
+  Arabica::XPath::XPath<std::string> xpathParser;
   Arabica::XPath::XPathExpressionPtr<std::string> xpath = xpathParser.compile(argv[1]);
   
   SAX2DOM::Parser<std::string> domParser;

test/XPath/execute_test.cpp

@@ -79,7 +79,7 @@ public:
 
 class ExecuteTest : public TestCase
 {
-  Arabica::XPath::XPath parser;
+  Arabica::XPath::XPath<std::string> parser;
   DOM::DOMImplementation<std::string> factory_;
   DOM::Document<std::string> document_;
 

test/XPath/parse_test.cpp

@@ -10,7 +10,7 @@
 
 class ParseTest : public TestCase
 {
-  Arabica::XPath::XPath parser;
+  Arabica::XPath::XPath<std::string> parser;
 
 public:
   ParseTest(std::string name) : TestCase(name)