domstring.hpp

基于属性证书的访问控制源代码,由c++编写,包括openssl,xercesc等

    /**
      * Appends the content of another <code>DOMString</code> to this string.
      *
      * @param other The object to be appended
      */
	DOMString& operator +=(const DOMString &other);


    /**
      * Appends the content of a c-style string to this string.
      *
      * @param other The string to be appended
      */
    DOMString& operator +=(const XMLCh* other);


    /**
      * Appends a character to this string.
      *
      * @param ch The character to be appended
      */
	DOMString& operator +=(XMLCh ch);


    /**
      * Clears the data of this <code>DOMString</code>.
      *
      * @param offset The position from the beginning from which the data must be deleted
      * @param count The count of characters from the offset that must be deleted
      */
    void        deleteData(unsigned int offset, unsigned int count);

    /**
      * Inserts a string within the existing <code>DOMString</code> at an arbitrary position.
      *
      * @param offset The offset from the beginning at which the insertion needs to be done
      *               in <code>this</code> object
      * @param data The <code>DOMString</code> containing the data that needs to be inserted
      * @return The object to be returned.
      */
    void        insertData(unsigned int offset, const DOMString &data);

    //@}
    /** @name Functions to get properties of the string. */
    //@{

    /**
      * Returns the character at the specified position.
      *
      * @param index The position at which the character is being requested
      * @return Returns the character at the specified position.
      */
    XMLCh       charAt(unsigned int index) const;

    /**
      * Returns a handle to the raw buffer in the <code>DOMString</code>.
      *
      * @return The pointer inside the <code>DOMString</code> containg the string data.
      *         Note: the data is not always null terminated.  Do not rely on
      *         a null being there, and do not add one, as several DOMStrings
      *         with different lengths may share the same raw buffer.
      */
    const XMLCh *rawBuffer() const;

    /**
      * Returns a copy of the string, transcoded to the local code page. The
      * caller owns the (char *) string that is returned, and is responsible
      * for deleting it.
      *
      * Note: The buffer returned is allocated using the global operator new
      *       and users need to make sure to use the corresponding delete [].
      *       This method will be deprecated in later versions, as we move
      *       towards using a memory manager for allocation and deallocation.
      *
      * @return A pointer to a newly allocated buffer of char elements, which
      *         represents the original string, but in the local encoding.
      */
    char        *transcode() const;

    /**
      * Returns a copy of the string, transcoded to the local code page. The
      * caller owns the (char *) string that is returned, and is responsible
      * for deleting it.
      *
      * @param  manager the memory manager to use for allocating returned
      *         returned buffer.
      *
      * @return A pointer to a newly allocated buffer of char elements, which
      *         represents the original string, but in the local encoding.
      */
    char        *transcode(MemoryManager* const manager) const;


    /**
      * Creates a DOMString, transcoded from an input 8 bit char * string
      * in the local code page.
      *
      * @param str The string to be transcoded
      * @return A new DOMString object
      */
    static DOMString transcode(const char* str);



    /**
      * Returns a sub-string of the <code>DOMString</code> starting at a specified position.
      *
      * @param offset The offset from the beginning from which the sub-string is being requested.
      * @param count The count of characters in the requested sub-string
      * @return The sub-string of the <code>DOMString</code> being requested
      */
    DOMString   substringData(unsigned int offset, unsigned int count) const;

    /**
      * Returns the length of the DOMString.
      *
      * @return The length of the string
      */
    unsigned int length() const;

    //@}
    /** @name Cloning function. */
    //@{

    /**
      * Makes a clone of a the DOMString.
      *
      * @return The object to be cloned.
      */
    DOMString   clone() const;

    //@}
    /** @name Print functions. */
    //@{

    /**
      * Dumps the <code>DOMString</code> on the console.
      *
      */
    void        print() const;

    /**
      * Dumps the <code>DOMString</code> on the console with a line feed at the end.
      *
      */
    void        println() const;

    //@}
    /** @name Functions to compare a string with another. */
    //@{

    /**
      * Compares a DOMString with another.
      *
      * This compareString does not match the semantics of the standard C strcmp.
      * All it needs to do is define some less than - equals - greater than
      * ordering of strings.  How doesn't matter.
      *
      *
      * @param other The object to be compared with
      * @return Either -1, 0, or 1 based on the comparison.
      */
    int         compareString(const DOMString &other) const;

    /**
      * Tells if a <code>DOMString</code> contains the same character data
      * as another.
      *
      * @param other The DOMString to be compared with.
      * @return True if the two <code>DOMString</code>s are same, false otherwise.
      */
    bool        equals(const DOMString &other) const;


      /**
      * Compare a DOMString with a null-terminated raw 16-bit character
      * string.
      *
      * @param other The character string to be compared with.
      * @return True if the strings are the same, false otherwise.
      */
    bool        equals(const XMLCh  *other) const;


    //@}
    friend      class DOMStringData;
    friend      class DOMStringHandle;
    friend      class DomMemDebug;
private:

    DOMStringHandle         *fHandle;
    static int              gLiveStringHandleCount;
    static int              gTotalStringHandleCount;
    static int              gLiveStringDataCount;
    static int              gTotalStringDataCount;
};


/****** Global Helper Functions ******/

/**
  * Concatenate two DOMString's.
  *
  * @param lhs the first string
  * @param rhs the second string
  * @return The concatenated object
  */
DOMString CDOM_EXPORT operator + (const DOMString &lhs, const DOMString &rhs);

/**
  * Concatenate a null terminated Unicode string to a DOMString.
  *
  * @param lhs the DOMString
  * @param rhs the XMLCh * string
  * @return The concatenated object
  */
DOMString CDOM_EXPORT operator + (const DOMString &lhs, const XMLCh* rhs);


/**
  * Concatenate a DOMString to a null terminated Unicode string
  *
  * @param lhs the null-terminated Unicode string
  * @param rhs the DOMString
  * @return The concatenated object
  */
DOMString CDOM_EXPORT operator + (const XMLCh* lhs, const DOMString &rhs);


/**
  * Concatenate a single Unicode character to a DOMString.
  *
  * @param lhs the DOMString
  * @param rhs the character
  * @return The concatenated object
  */
DOMString CDOM_EXPORT operator + (const DOMString &lhs, XMLCh rhs);


/**
  * Concatenate a DOMString to a single Unicode character.
  *
  * @param lhs the character
  * @param rhs the DOMString
  * @return The concatenated object
  */
DOMString CDOM_EXPORT operator + (XMLCh lhs, const DOMString &rhs);

XERCES_CPP_NAMESPACE_END

#endif