From b0bee82c6434575fe39b01882583afe32040ab6e Mon Sep 17 00:00:00 2001
From: Haibo Huang <hhb@google.com>
Date: Wed, 24 Feb 2021 15:40:15 -0800
Subject: Upgrade jsoncpp to 1.9.4

Bug: 170642246
Change-Id: Id1fae5a1b6421117f923c616718ee4b3571231e0
---
 src/lib_json/json_tool.h | 77 ++++++++++++++++++++++++++++++++++++++----------
 1 file changed, 62 insertions(+), 15 deletions(-)

(limited to 'src/lib_json/json_tool.h')

diff --git a/src/lib_json/json_tool.h b/src/lib_json/json_tool.h
index f9b61c3..2d7b7d9 100644
--- a/src/lib_json/json_tool.h
+++ b/src/lib_json/json_tool.h
@@ -1,4 +1,4 @@
-// Copyright 2007-2010 Baptiste Lepilleur
+// 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
@@ -6,6 +6,19 @@
 #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...
  *
@@ -13,10 +26,18 @@
  */
 
 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 std::string codePointToUTF8(unsigned int cp) {
-  std::string result;
+static inline String codePointToUTF8(unsigned int cp) {
+  String result;
 
   // based on description from http://en.wikipedia.org/wiki/UTF-8
 
@@ -30,8 +51,8 @@ static inline std::string codePointToUTF8(unsigned int cp) {
   } else if (cp <= 0xFFFF) {
     result.resize(3);
     result[2] = static_cast<char>(0x80 | (0x3f & cp));
-    result[1] = 0x80 | static_cast<char>((0x3f & (cp >> 6)));
-    result[0] = 0xE0 | static_cast<char>((0xf & (cp >> 12)));
+    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));
@@ -43,9 +64,6 @@ static inline std::string codePointToUTF8(unsigned int cp) {
   return result;
 }
 
-/// Returns true if ch is a control character (in range [0,32[).
-static inline bool isControlCharacter(char ch) { return ch > 0 && ch <= 0x1F; }
-
 enum {
   /// Constant that specify the size of the buffer that must be passed to
   /// uintToString.
@@ -53,17 +71,17 @@ enum {
 };
 
 // Defines a char buffer for use with uintToString().
-typedef char UIntToStringBuffer[uintToStringBufferSize];
+using UIntToStringBuffer = char[uintToStringBufferSize];
 
 /** Converts an unsigned integer to string.
- * @param value Unsigned interger to convert 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 = char(value % 10) + '0';
+    *--current = static_cast<char>(value % 10U + static_cast<unsigned>('0'));
     value /= 10;
   } while (value != 0);
 }
@@ -73,15 +91,44 @@ static inline void uintToString(LargestUInt value, char*& current) {
  * 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) {
+template <typename Iter> Iter fixNumericLocale(Iter begin, Iter end) {
+  for (; begin != end; ++begin) {
     if (*begin == ',') {
       *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) {
+  for (; begin != end; --end) {
+    if (*(end - 1) != '0') {
+      return end;
+    }
+    // Don't delete the last zero before the decimal point.
+    if (begin != (end - 1) && *(end - 2) == '.') {
+      return end;
+    }
+  }
+  return end;
 }
 
-} // namespace Json {
+} // namespace Json
 
 #endif // LIB_JSONCPP_JSON_TOOL_H_INCLUDED
-- 
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