[#2084] add warning() method to parser contexts

2 files changed, 26 insertions, 2 deletions

diff --git a/src/bin/netconf/parser_context.cc b/src/bin/netconf/parser_context.cc
index 24fc650407..c672d95226 100644
--- a/src/bin/netconf/parser_context.cc
+++ b/src/bin/netconf/parser_context.cc
@@ -180,5 +180,16 @@ ParserContext::contextName()
     }
 }
 
+void
+ParserContext::warning(const isc::netconf::location& loc,
+                       const std::string& what,
+                       size_t pos /* = 0 */) {
+    if (pos == 0) {
+        std::cerr << loc << ": " << what << std::endl;
+    } else {
+        std::cerr << loc << " (near " << pos << "): " << what << std::endl;
+    }
 }
-}
+
+}  // namespace netconf
+}  // namespace isc
diff --git a/src/bin/netconf/parser_context.h b/src/bin/netconf/parser_context.h
index 22be5d0f63..5db590fff0 100644
--- a/src/bin/netconf/parser_context.h
+++ b/src/bin/netconf/parser_context.h
@@ -119,7 +119,7 @@ public:
     /// @note The optional position for an error in a string begins by 1
     /// so the caller should add 1 to the position of the C++ string.
     ///
-    /// @param loc location within the parsed file when experienced a problem.
+    /// @param loc location within the parsed file where the problem was experienced.
     /// @param what string explaining the nature of the error.
     /// @param pos optional position for in string errors.
     /// @throw ParseError
@@ -178,6 +178,19 @@ public:
     void unique(const std::string& name,
                 isc::data::Element::Position loc);
 
+    /// @brief Warning handler
+    ///
+    /// @param loc location within the parsed file where the problem was experienced
+    /// @param what string explaining the nature of the error
+    /// @param pos optional position for in string errors. The optional position
+    /// for an error in a string begins by 1 so the caller should add 1 to the
+    /// position of the C++ string.
+    ///
+    /// @throw ParseError
+    void warning(const isc::netconf::location& loc,
+                 const std::string& what,
+                 size_t pos = 0);
+
     /// @brief Defines syntactic contexts for lexical tie-ins
     typedef enum {
         ///< This one is used in pure JSON mode.