Merge commit '7eef3bf1545663791252b2a3cad437ec9fcfc9cc' as 'deps/ox/deps/jsoncpp'

(synced from b96d33bbb9)
2022-03-11 22:21:02 -06:00
parent ef2762131e
commit c2fbe99869
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+// 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
+
+#if !defined(JSON_IS_AMALGAMATION)
+#include <json/config.h>
+#endif
+
+// 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 inline 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 String codePointToUTF8(unsigned int cp) {
+  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().
+using UIntToStringBuffer = char[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
+ */
+template <typename Iter> Iter fixNumericLocale(Iter begin, Iter end) {
+  for (; begin != end; ++begin) {
+    if (*begin == ',') {
+      *begin = '.';
+    }
+  }
+  return begin;
+}
+
+template <typename Iter> void fixNumericLocaleInput(Iter begin, Iter end) {
+  char decimalPoint = getDecimalPoint();
+  if (decimalPoint == '\0' || decimalPoint == '.') {
+    return;
+  }
+  for (; begin != end; ++begin) {
+    if (*begin == '.') {
+      *begin = decimalPoint;
+    }
+  }
+}
+
+/**
+ * Return iterator that would be the new end of the range [begin,end), if we
+ * were to delete zeros in the end of string, but not the last zero before '.'.
+ */
+template <typename Iter>
+Iter fixZerosInTheEnd(Iter begin, Iter end, unsigned int precision) {
+  for (; begin != end; --end) {
+    if (*(end - 1) != '0') {
+      return end;
+    }
+    // Don't delete the last zero before the decimal point.
+    if (begin != (end - 1) && begin != (end - 2) && *(end - 2) == '.') {
+      if (precision) {
+        return end;
+      }
+      return end - 2;
+    }
+  }
+  return end;
+}
+
+} // namespace Json
+
+#endif // LIB_JSONCPP_JSON_TOOL_H_INCLUDED