1 files changed, 46 insertions, 0 deletions
diff --git a/src/parser/json_global.cpp b/src/parser/json_global.cpp
new file mode 100644
index 0000000..f01f778
--- /dev/null
+++ b/src/parser/json_global.cpp
@@ -0,0 +1,46 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/*
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ */
+
+#include "orcus/json_global.hpp"
+#include "orcus/parser_global.hpp"
+
+#include <sstream>
+
+namespace orcus { namespace json {
+
+namespace {
+
+const char backslash = '\\';
+
+}
+
+std::string escape_string(const std::string& input)
+{
+    std::ostringstream os;
+
+    for (auto it = input.begin(), ite = input.end(); it != ite; ++it)
+    {
+        char c = *it;
+        if (c == '"')
+            // Escape double quote, but not forward slash.
+            os << backslash;
+        else if (c == backslash)
+        {
+            // Escape a '\' if and only if the next character is not one of control characters.
+            auto itnext = it + 1;
+            if (itnext == ite || get_string_escape_char_type(*itnext) != string_escape_char_t::control_char)
+                os << backslash;
+        }
+        os << c;
+    }
+
+    return os.str();
+}
+
+}}
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */