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From jsoref <...@git.apache.org>
Subject [GitHub] cordova-plugin-globalization pull request: BB10 implementation
Date Wed, 30 Jul 2014 18:29:42 GMT
Github user jsoref commented on a diff in the pull request:

    https://github.com/apache/cordova-plugin-globalization/pull/18#discussion_r15602750
  
    --- Diff: src/blackberry10/native/public/json/value.h ---
    @@ -0,0 +1,1069 @@
    +#ifndef CPPTL_JSON_H_INCLUDED
    +# define CPPTL_JSON_H_INCLUDED
    +
    +# include "forwards.h"
    +# include <string>
    +# include <vector>
    +
    +# ifndef JSON_USE_CPPTL_SMALLMAP
    +#  include <map>
    +# else
    +#  include <cpptl/smallmap.h>
    +# endif
    +# ifdef JSON_USE_CPPTL
    +#  include <cpptl/forwards.h>
    +# endif
    +
    +/** \brief JSON (JavaScript Object Notation).
    + */
    +namespace Json {
    +
    +   /** \brief Type of the value held by a Value object.
    +    */
    +   enum ValueType
    +   {
    +      nullValue = 0, ///< 'null' value
    +      intValue,      ///< signed integer value
    +      uintValue,     ///< unsigned integer value
    +      realValue,     ///< double value
    +      stringValue,   ///< UTF-8 string value
    +      booleanValue,  ///< bool value
    +      arrayValue,    ///< array value (ordered list)
    +      objectValue    ///< object value (collection of name/value pairs).
    +   };
    +
    +   enum CommentPlacement
    +   {
    +      commentBefore = 0,        ///< a comment placed on the line before a value
    +      commentAfterOnSameLine,   ///< a comment just after a value on the same line
    +      commentAfter,             ///< a comment on the line after a value (only make
sense for root value)
    +      numberOfCommentPlacement
    +   };
    +
    +//# ifdef JSON_USE_CPPTL
    +//   typedef CppTL::AnyEnumerator<const char *> EnumMemberNames;
    +//   typedef CppTL::AnyEnumerator<const Value &> EnumValues;
    +//# endif
    +
    +   /** \brief Lightweight wrapper to tag static string.
    +    *
    +    * Value constructor and objectValue member assignement takes advantage of the
    +    * StaticString and avoid the cost of string duplication when storing the
    +    * string or the member name.
    +    *
    +    * Example of usage:
    +    * \code
    +    * Json::Value aValue( StaticString("some text") );
    +    * Json::Value object;
    +    * static const StaticString code("code");
    +    * object[code] = 1234;
    +    * \endcode
    +    */
    +   class JSON_API StaticString
    +   {
    +   public:
    +      explicit StaticString( const char *czstring )
    +         : str_( czstring )
    +      {
    +      }
    +
    +      operator const char *() const
    +      {
    +         return str_;
    +      }
    +
    +      const char *c_str() const
    +      {
    +         return str_;
    +      }
    +
    +   private:
    +      const char *str_;
    +   };
    +
    +   /** \brief Represents a <a HREF="http://www.json.org">JSON</a> value.
    +    *
    +    * This class is a discriminated union wrapper that can represents a:
    +    * - signed integer [range: Value::minInt - Value::maxInt]
    +    * - unsigned integer (range: 0 - Value::maxUInt)
    +    * - double
    +    * - UTF-8 string
    +    * - boolean
    +    * - 'null'
    +    * - an ordered list of Value
    +    * - collection of name/value pairs (javascript object)
    +    *
    +    * The type of the held value is represented by a #ValueType and 
    +    * can be obtained using type().
    +    *
    +    * values of an #objectValue or #arrayValue can be accessed using operator[]() methods.

    +    * Non const methods will automatically create the a #nullValue element 
    +    * if it does not exist. 
    +    * The sequence of an #arrayValue will be automatically resize and initialized 
    +    * with #nullValue. resize() can be used to enlarge or truncate an #arrayValue.
    +    *
    +    * The get() methods can be used to obtanis default value in the case the required
element
    +    * does not exist.
    +    *
    +    * It is possible to iterate over the list of a #objectValue values using 
    +    * the getMemberNames() method.
    +    */
    +   class JSON_API Value 
    +   {
    +      friend class ValueIteratorBase;
    +# ifdef JSON_VALUE_USE_INTERNAL_MAP
    +      friend class ValueInternalLink;
    +      friend class ValueInternalMap;
    +# endif
    +   public:
    +      typedef std::vector<std::string> Members;
    +      typedef ValueIterator iterator;
    +      typedef ValueConstIterator const_iterator;
    +      typedef Json::UInt UInt;
    +      typedef Json::Int Int;
    +      typedef UInt ArrayIndex;
    +
    +      static const Value null;
    +      static const Int minInt;
    +      static const Int maxInt;
    +      static const UInt maxUInt;
    +
    +   private:
    +#ifndef JSONCPP_DOC_EXCLUDE_IMPLEMENTATION
    +# ifndef JSON_VALUE_USE_INTERNAL_MAP
    +      class CZString 
    +      {
    +      public:
    +         enum DuplicationPolicy 
    +         {
    +            noDuplication = 0,
    +            duplicate,
    +            duplicateOnCopy
    +         };
    +         CZString( int index );
    +         CZString( const char *cstr, DuplicationPolicy allocate );
    +         CZString( const CZString &other );
    +         ~CZString();
    +         CZString &operator =( const CZString &other );
    +         bool operator<( const CZString &other ) const;
    +         bool operator==( const CZString &other ) const;
    +         int index() const;
    +         const char *c_str() const;
    +         bool isStaticString() const;
    +      private:
    +         void swap( CZString &other );
    +         const char *cstr_;
    +         int index_;
    +      };
    +
    +   public:
    +#  ifndef JSON_USE_CPPTL_SMALLMAP
    +      typedef std::map<CZString, Value> ObjectValues;
    +#  else
    +      typedef CppTL::SmallMap<CZString, Value> ObjectValues;
    +#  endif // ifndef JSON_USE_CPPTL_SMALLMAP
    +# endif // ifndef JSON_VALUE_USE_INTERNAL_MAP
    +#endif // ifndef JSONCPP_DOC_EXCLUDE_IMPLEMENTATION
    +
    +   public:
    +      /** \brief Create a default Value of the given type.
    +
    +        This is a very useful constructor.
    +        To create an empty array, pass arrayValue.
    +        To create an empty object, pass objectValue.
    +        Another Value can then be set to this one by assignment.
    +	This is useful since clear() and resize() will not alter types.
    +
    +        Examples:
    +	\code
    +	Json::Value null_value; // null
    +	Json::Value arr_value(Json::arrayValue); // []
    +	Json::Value obj_value(Json::objectValue); // {}
    +	\endcode
    +      */
    +      Value( ValueType type = nullValue );
    +      Value( Int value );
    +      Value( UInt value );
    +      Value( double value );
    +      Value( const char *value );
    +      Value( const char *beginValue, const char *endValue );
    +      /** \brief Constructs a value from a static string.
    +
    +       * Like other value string constructor but do not duplicate the string for
    +       * internal storage. The given string must remain alive after the call to this
    +       * constructor.
    +       * Example of usage:
    +       * \code
    +       * Json::Value aValue( StaticString("some text") );
    +       * \endcode
    +       */
    +      Value( const StaticString &value );
    +      Value( const std::string &value );
    +# ifdef JSON_USE_CPPTL
    +      Value( const CppTL::ConstString &value );
    +# endif
    +      Value( bool value );
    +      Value( const Value &other );
    +      ~Value();
    +
    +      Value &operator=( const Value &other );
    +      /// Swap values.
    +      /// \note Currently, comments are intentionally not swapped, for
    +      /// both logic and efficiency.
    +      void swap( Value &other );
    +
    +      ValueType type() const;
    +
    +      bool operator <( const Value &other ) const;
    +      bool operator <=( const Value &other ) const;
    +      bool operator >=( const Value &other ) const;
    +      bool operator >( const Value &other ) const;
    +
    +      bool operator ==( const Value &other ) const;
    +      bool operator !=( const Value &other ) const;
    +
    +      int compare( const Value &other );
    +
    +      const char *asCString() const;
    +      std::string asString() const;
    +# ifdef JSON_USE_CPPTL
    +      CppTL::ConstString asConstString() const;
    +# endif
    +      Int asInt() const;
    +      UInt asUInt() const;
    +      double asDouble() const;
    +      bool asBool() const;
    +
    +      bool isNull() const;
    +      bool isBool() const;
    +      bool isInt() const;
    +      bool isUInt() const;
    +      bool isIntegral() const;
    +      bool isDouble() const;
    +      bool isNumeric() const;
    +      bool isString() const;
    +      bool isArray() const;
    +      bool isObject() const;
    +
    +      bool isConvertibleTo( ValueType other ) const;
    +
    +      /// Number of values in array or object
    +      UInt size() const;
    +
    +      /// \brief Return true if empty array, empty object, or null;
    +      /// otherwise, false.
    +      bool empty() const;
    +
    +      /// Return isNull()
    +      bool operator!() const;
    +
    +      /// Remove all object members and array elements.
    +      /// \pre type() is arrayValue, objectValue, or nullValue
    +      /// \post type() is unchanged
    +      void clear();
    +
    +      /// Resize the array to size elements. 
    +      /// New elements are initialized to null.
    +      /// May only be called on nullValue or arrayValue.
    +      /// \pre type() is arrayValue or nullValue
    +      /// \post type() is arrayValue
    +      void resize( UInt size );
    +
    +      /// Access an array element (zero based index ).
    +      /// If the array contains less than index element, then null value are inserted
    +      /// in the array so that its size is index+1.
    +      /// (You may need to say 'value[0u]' to get your compiler to distinguish
    +      ///  this from the operator[] which takes a string.)
    +      Value &operator[]( UInt index );
    +      /// Access an array element (zero based index )
    +      /// (You may need to say 'value[0u]' to get your compiler to distinguish
    +      ///  this from the operator[] which takes a string.)
    +      const Value &operator[]( UInt index ) const;
    +      /// If the array contains at least index+1 elements, returns the element value,

    +      /// otherwise returns defaultValue.
    +      Value get( UInt index, 
    +                 const Value &defaultValue ) const;
    +      /// Return true if index < size().
    +      bool isValidIndex( UInt index ) const;
    +      /// \brief Append value to array at the end.
    +      ///
    +      /// Equivalent to jsonvalue[jsonvalue.size()] = value;
    +      Value &append( const Value &value );
    +
    +      /// Access an object value by name, create a null member if it does not exist.
    +      Value &operator[]( const char *key );
    +      /// Access an object value by name, returns null if there is no member with that
name.
    +      const Value &operator[]( const char *key ) const;
    +      /// Access an object value by name, create a null member if it does not exist.
    +      Value &operator[]( const std::string &key );
    +      /// Access an object value by name, returns null if there is no member with that
name.
    +      const Value &operator[]( const std::string &key ) const;
    +      /** \brief Access an object value by name, create a null member if it does not
exist.
    +
    +       * If the object as no entry for that name, then the member name used to store
    +       * the new entry is not duplicated.
    +       * Example of use:
    +       * \code
    +       * Json::Value object;
    +       * static const StaticString code("code");
    +       * object[code] = 1234;
    +       * \endcode
    +       */
    +      Value &operator[]( const StaticString &key );
    +# ifdef JSON_USE_CPPTL
    +      /// Access an object value by name, create a null member if it does not exist.
    +      Value &operator[]( const CppTL::ConstString &key );
    +      /// Access an object value by name, returns null if there is no member with that
name.
    +      const Value &operator[]( const CppTL::ConstString &key ) const;
    +# endif
    +      /// Return the member named key if it exist, defaultValue otherwise.
    +      Value get( const char *key, 
    +                 const Value &defaultValue ) const;
    +      /// Return the member named key if it exist, defaultValue otherwise.
    +      Value get( const std::string &key,
    +                 const Value &defaultValue ) const;
    +# ifdef JSON_USE_CPPTL
    +      /// Return the member named key if it exist, defaultValue otherwise.
    +      Value get( const CppTL::ConstString &key,
    +                 const Value &defaultValue ) const;
    +# endif
    +      /// \brief Remove and return the named member.  
    +      ///
    +      /// Do nothing if it did not exist.
    +      /// \return the removed Value, or null.
    +      /// \pre type() is objectValue or nullValue
    +      /// \post type() is unchanged
    +      Value removeMember( const char* key );
    +      /// Same as removeMember(const char*)
    +      Value removeMember( const std::string &key );
    +
    +      /// Return true if the object has a member named key.
    +      bool isMember( const char *key ) const;
    +      /// Return true if the object has a member named key.
    +      bool isMember( const std::string &key ) const;
    +# ifdef JSON_USE_CPPTL
    +      /// Return true if the object has a member named key.
    +      bool isMember( const CppTL::ConstString &key ) const;
    +# endif
    +
    +      /// \brief Return a list of the member names.
    +      ///
    +      /// If null, return an empty list.
    +      /// \pre type() is objectValue or nullValue
    +      /// \post if type() was nullValue, it remains nullValue
    +      Members getMemberNames() const;
    +
    +//# ifdef JSON_USE_CPPTL
    +//      EnumMemberNames enumMemberNames() const;
    +//      EnumValues enumValues() const;
    +//# endif
    +
    +      /// Comments must be //... or /* ... */
    +      void setComment( const char *comment,
    +                       CommentPlacement placement );
    +      /// Comments must be //... or /* ... */
    +      void setComment( const std::string &comment,
    +                       CommentPlacement placement );
    +      bool hasComment( CommentPlacement placement ) const;
    +      /// Include delimiters and embedded newlines.
    +      std::string getComment( CommentPlacement placement ) const;
    +
    +      std::string toStyledString() const;
    +
    +      const_iterator begin() const;
    +      const_iterator end() const;
    +
    +      iterator begin();
    +      iterator end();
    +
    +   private:
    +      Value &resolveReference( const char *key, 
    +                               bool isStatic );
    +
    +# ifdef JSON_VALUE_USE_INTERNAL_MAP
    +      inline bool isItemAvailable() const
    +      {
    +         return itemIsUsed_ == 0;
    +      }
    +
    +      inline void setItemUsed( bool isUsed = true )
    +      {
    +         itemIsUsed_ = isUsed ? 1 : 0;
    +      }
    +
    +      inline bool isMemberNameStatic() const
    +      {
    +         return memberNameIsStatic_ == 0;
    +      }
    +
    +      inline void setMemberNameIsStatic( bool isStatic )
    +      {
    +         memberNameIsStatic_ = isStatic ? 1 : 0;
    +      }
    +# endif // # ifdef JSON_VALUE_USE_INTERNAL_MAP
    +
    +   private:
    +      struct CommentInfo
    +      {
    +         CommentInfo();
    +         ~CommentInfo();
    +
    +         void setComment( const char *text );
    +
    +         char *comment_;
    +      };
    +
    +      //struct MemberNamesTransform
    +      //{
    +      //   typedef const char *result_type;
    +      //   const char *operator()( const CZString &name ) const
    +      //   {
    +      //      return name.c_str();
    +      //   }
    +      //};
    +
    +      union ValueHolder
    +      {
    +         Int int_;
    +         UInt uint_;
    +         double real_;
    +         bool bool_;
    +         char *string_;
    +# ifdef JSON_VALUE_USE_INTERNAL_MAP
    +         ValueInternalArray *array_;
    +         ValueInternalMap *map_;
    +#else
    +         ObjectValues *map_;
    +# endif
    +      } value_;
    +      ValueType type_ : 8;
    +      int allocated_ : 1;     // Notes: if declared as bool, bitfield is useless.
    +# ifdef JSON_VALUE_USE_INTERNAL_MAP
    +      unsigned int itemIsUsed_ : 1;      // used by the ValueInternalMap container.
    +      int memberNameIsStatic_ : 1;       // used by the ValueInternalMap container.
    +# endif
    +      CommentInfo *comments_;
    +   };
    +
    +
    +   /** \brief Experimental and untested: represents an element of the "path" to access
a node.
    +    */
    +   class PathArgument
    +   {
    +   public:
    +      friend class Path;
    +
    +      PathArgument();
    +      PathArgument( UInt index );
    +      PathArgument( const char *key );
    +      PathArgument( const std::string &key );
    +
    +   private:
    +      enum Kind
    +      {
    +         kindNone = 0,
    +         kindIndex,
    +         kindKey
    +      };
    +      std::string key_;
    +      UInt index_;
    +      Kind kind_;
    +   };
    +
    +   /** \brief Experimental and untested: represents a "path" to access a node.
    +    *
    +    * Syntax:
    +    * - "." => root node
    +    * - ".[n]" => elements at index 'n' of root node (an array value)
    +    * - ".name" => member named 'name' of root node (an object value)
    +    * - ".name1.name2.name3"
    +    * - ".[0][1][2].name1[3]"
    +    * - ".%" => member name is provided as parameter
    +    * - ".[%]" => index is provied as parameter
    +    */
    +   class Path
    +   {
    +   public:
    +      Path( const std::string &path,
    +            const PathArgument &a1 = PathArgument(),
    +            const PathArgument &a2 = PathArgument(),
    +            const PathArgument &a3 = PathArgument(),
    +            const PathArgument &a4 = PathArgument(),
    +            const PathArgument &a5 = PathArgument() );
    +
    +      const Value &resolve( const Value &root ) const;
    +      Value resolve( const Value &root, 
    +                     const Value &defaultValue ) const;
    +      /// Creates the "path" to access the specified node and returns a reference on
the node.
    +      Value &make( Value &root ) const;
    +
    +   private:
    +      typedef std::vector<const PathArgument *> InArgs;
    +      typedef std::vector<PathArgument> Args;
    +
    +      void makePath( const std::string &path,
    +                     const InArgs &in );
    +      void addPathInArg( const std::string &path, 
    +                         const InArgs &in, 
    +                         InArgs::const_iterator &itInArg, 
    +                         PathArgument::Kind kind );
    +      void invalidPath( const std::string &path, 
    +                        int location );
    +
    +      Args args_;
    +   };
    +
    +   /** \brief Experimental do not use: Allocator to customize member name and string
value memory management done by Value.
    +    *
    +    * - makeMemberName() and releaseMemberName() are called to respectively duplicate
and
    +    *   free an Json::objectValue member name.
    +    * - duplicateStringValue() and releaseStringValue() are called similarly to
    +    *   duplicate and free a Json::stringValue value.
    +    */
    +   class ValueAllocator
    +   {
    +   public:
    +      enum { unknown = (unsigned)-1 };
    +
    +      virtual ~ValueAllocator();
    +
    +      virtual char *makeMemberName( const char *memberName ) = 0;
    +      virtual void releaseMemberName( char *memberName ) = 0;
    +      virtual char *duplicateStringValue( const char *value, 
    +                                          unsigned int length = unknown ) = 0;
    +      virtual void releaseStringValue( char *value ) = 0;
    +   };
    +
    +#ifdef JSON_VALUE_USE_INTERNAL_MAP
    +   /** \brief Allocator to customize Value internal map.
    +    * Below is an example of a simple implementation (default implementation actually
    +    * use memory pool for speed).
    +    * \code
    +      class DefaultValueMapAllocator : public ValueMapAllocator
    +      {
    +      public: // overridden from ValueMapAllocator
    +         virtual ValueInternalMap *newMap()
    +         {
    +            return new ValueInternalMap();
    +         }
    +
    +         virtual ValueInternalMap *newMapCopy( const ValueInternalMap &other )
    +         {
    +            return new ValueInternalMap( other );
    +         }
    +
    +         virtual void destructMap( ValueInternalMap *map )
    +         {
    +            delete map;
    +         }
    +
    +         virtual ValueInternalLink *allocateMapBuckets( unsigned int size )
    +         {
    +            return new ValueInternalLink[size];
    +         }
    +
    +         virtual void releaseMapBuckets( ValueInternalLink *links )
    +         {
    +            delete [] links;
    +         }
    +
    +         virtual ValueInternalLink *allocateMapLink()
    +         {
    +            return new ValueInternalLink();
    +         }
    +
    +         virtual void releaseMapLink( ValueInternalLink *link )
    +         {
    +            delete link;
    +         }
    +      };
    +    * \endcode
    +    */ 
    +   class JSON_API ValueMapAllocator
    +   {
    +   public:
    +      virtual ~ValueMapAllocator();
    +      virtual ValueInternalMap *newMap() = 0;
    +      virtual ValueInternalMap *newMapCopy( const ValueInternalMap &other ) = 0;
    +      virtual void destructMap( ValueInternalMap *map ) = 0;
    +      virtual ValueInternalLink *allocateMapBuckets( unsigned int size ) = 0;
    +      virtual void releaseMapBuckets( ValueInternalLink *links ) = 0;
    +      virtual ValueInternalLink *allocateMapLink() = 0;
    +      virtual void releaseMapLink( ValueInternalLink *link ) = 0;
    +   };
    +
    +   /** \brief ValueInternalMap hash-map bucket chain link (for internal use only).
    +    * \internal previous_ & next_ allows for bidirectional traversal.
    +    */
    +   class JSON_API ValueInternalLink
    +   {
    +   public:
    +      enum { itemPerLink = 6 };  // sizeof(ValueInternalLink) = 128 on 32 bits architecture.
    +      enum InternalFlags { 
    +         flagAvailable = 0,
    +         flagUsed = 1
    +      };
    +
    +      ValueInternalLink();
    +
    +      ~ValueInternalLink();
    +
    +      Value items_[itemPerLink];
    +      char *keys_[itemPerLink];
    +      ValueInternalLink *previous_;
    +      ValueInternalLink *next_;
    +   };
    +
    +
    +   /** \brief A linked page based hash-table implementation used internally by Value.
    +    * \internal ValueInternalMap is a tradional bucket based hash-table, with a linked
    +    * list in each bucket to handle collision. There is an addional twist in that
    --- End diff --
    
    sp: addional


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