Diff: jsoncpp/src/lib_json/json_tool.h

Revision:

0:2ee762ea11b3

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/jsoncpp/src/lib_json/json_tool.h	Fri Jan 26 06:05:31 2018 +0000
@@ -0,0 +1,115 @@
+// Copyright 2007-2010 Baptiste Lepilleur and The JsonCpp Authors
+// Distributed under MIT license, or public domain if desired and
+// recognized in your jurisdiction.
+// See file LICENSE for detail or copy at http://jsoncpp.sourceforge.net/LICENSE
+
+#ifndef LIB_JSONCPP_JSON_TOOL_H_INCLUDED
+#define LIB_JSONCPP_JSON_TOOL_H_INCLUDED
+
+#define NO_LOCALE_SUPPORT //---------------tgw----------
+
+// Also support old flag NO_LOCALE_SUPPORT
+#ifdef NO_LOCALE_SUPPORT
+#define JSONCPP_NO_LOCALE_SUPPORT
+#endif
+
+#ifndef JSONCPP_NO_LOCALE_SUPPORT
+#include <clocale>
+#endif
+
+/* This header provides common string manipulation support, such as UTF-8,
+ * portable conversion from/to string...
+ *
+ * It is an internal header that must not be exposed.
+ */
+
+namespace Json {
+static char getDecimalPoint() {
+#ifdef JSONCPP_NO_LOCALE_SUPPORT
+  return '\0';
+#else
+  struct lconv* lc = localeconv();
+  return lc ? *(lc->decimal_point) : '\0';
+#endif
+}
+
+/// Converts a unicode code-point to UTF-8.
+static inline JSONCPP_STRING codePointToUTF8(unsigned int cp) {
+  JSONCPP_STRING result;
+
+  // based on description from http://en.wikipedia.org/wiki/UTF-8
+
+  if (cp <= 0x7f) {
+    result.resize(1);
+    result[0] = static_cast<char>(cp);
+  } else if (cp <= 0x7FF) {
+    result.resize(2);
+    result[1] = static_cast<char>(0x80 | (0x3f & cp));
+    result[0] = static_cast<char>(0xC0 | (0x1f & (cp >> 6)));
+  } else if (cp <= 0xFFFF) {
+    result.resize(3);
+    result[2] = static_cast<char>(0x80 | (0x3f & cp));
+    result[1] = static_cast<char>(0x80 | (0x3f & (cp >> 6)));
+    result[0] = static_cast<char>(0xE0 | (0xf & (cp >> 12)));
+  } else if (cp <= 0x10FFFF) {
+    result.resize(4);
+    result[3] = static_cast<char>(0x80 | (0x3f & cp));
+    result[2] = static_cast<char>(0x80 | (0x3f & (cp >> 6)));
+    result[1] = static_cast<char>(0x80 | (0x3f & (cp >> 12)));
+    result[0] = static_cast<char>(0xF0 | (0x7 & (cp >> 18)));
+  }
+
+  return result;
+}
+
+enum {
+  /// Constant that specify the size of the buffer that must be passed to
+  /// uintToString.
+  uintToStringBufferSize = 3 * sizeof(LargestUInt) + 1
+};
+
+// Defines a char buffer for use with uintToString().
+typedef char UIntToStringBuffer[uintToStringBufferSize];
+
+/** Converts an unsigned integer to string.
+ * @param value Unsigned integer to convert to string
+ * @param current Input/Output string buffer.
+ *        Must have at least uintToStringBufferSize chars free.
+ */
+static inline void uintToString(LargestUInt value, char*& current) {
+  *--current = 0;
+  do {
+    *--current = static_cast<char>(value % 10U + static_cast<unsigned>('0'));
+    value /= 10;
+  } while (value != 0);
+}
+
+/** Change ',' to '.' everywhere in buffer.
+ *
+ * We had a sophisticated way, but it did not work in WinCE.
+ * @see https://github.com/open-source-parsers/jsoncpp/pull/9
+ */
+static inline void fixNumericLocale(char* begin, char* end) {
+  while (begin < end) {
+    if (*begin == ',') {
+      *begin = '.';
+    }
+    ++begin;
+  }
+}
+
+static inline void fixNumericLocaleInput(char* begin, char* end) {
+  char decimalPoint = getDecimalPoint();
+  if (decimalPoint != '\0' && decimalPoint != '.') {
+    while (begin < end) {
+      if (*begin == '.') {
+        *begin = decimalPoint;
+      }
+      ++begin;
+    }
+  }
+}
+
+} // namespace Json {
+
+#endif // LIB_JSONCPP_JSON_TOOL_H_INCLUDED