class OString

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:: rtl ::

class OString

Base Classes: None.

Known Derived Classes: None.

virtual	abstract	interface	template
NO	NO	NO	NO

Description: This String class provide base functionality for C++ like 8-Bit character array handling. The advantage of this class is, that it handle all the memory managament for you - and it do it more efficient. If you assign a string to another string, the data of both strings are shared (without any copy operation or memory allocation) as long as you do not change the string. This class stores also the length of the string, so that many operations are faster as the C-str-functions. This class provide only readonly string handling. So you could create a string and you could only query the content from this string. It provide also functionality to change the string, but this results in every case in a new string instance (in the most cases with an memory allocation). You don't have functionality to change the content of the string. If you want change the string content, than you should us the OStringBuffer class, which provide these functionality and avoid to much memory allocation. The design of this class is similar to the string classes in Java and so more people should have fewer understanding problems when they use this class.

File: string.hxx

Public Members

Methods
OString( ) throw( );	New string containing no characters.
OString( const OString & str ) throw( );	New string from OString.
OString( rtl_String * str ) throw( );	New string from OString data.
OString( const sal_Char * value ) throw( );	New string from a character buffer array.
OString( const sal_Char * value, sal_Int32 length ) throw( );	New string from a character buffer array.
OString( const sal_Unicode * value, sal_Int32 length, rtl_TextEncoding encoding, sal_uInt32 convertFlags = OUSTRING_TO_OSTRING_CVTFLAGS ) throw( );	New string from a Unicode character buffer array.
OString( const ByteString & value ) throw( );	Convert a ByteString (from the tools module) into an OString.
~OString( ) throw( );	Release the string data.
OString & operator=( const OString & str ) throw( );	Assign a new string.
OString & operator+=( const OString & str ) throw( );	Append a string to this string.
sal_Int32 getLength( ) const throw( );	Returns the length of this string.
operator const sal_Char *( ) const throw( );	Returns a pointer to the character buffer from this string.
const sal_Char * getStr( ) const throw( );	Returns a pointer to the character buffer from this string.
sal_Int32 compareTo( const OString & str ) const throw( );	Compares two strings.
sal_Int32 compareTo( const OString & rObj, sal_Int32 maxLength ) const throw( );	Compares two strings with an maximum count of characters.
sal_Int32 reverseCompareTo( const OString & str ) const throw( );	Compares two strings in reverse order.
sal_Bool equals( const OString & str ) const throw( );	Perform a comparison of two strings.
sal_Bool equalsIgnoreAsciiCase( const OString & str ) const throw( );	Perform a ASCII lowercase comparison of two strings.
sal_Bool match( const OString & str, sal_Int32 fromIndex = 0 ) const throw( );	Perform a comparison of a substring in this string.
sal_Bool matchIgnoreAsciiCase( const OString & str, sal_Int32 fromIndex = 0 ) const throw( );	Perform a ASCII lowercase comparison of a substring in this string.
sal_Int32 hashCode( ) const throw( );	Returns a hashcode for this string.
sal_Int32 indexOf( sal_Char ch, sal_Int32 fromIndex = 0 ) const throw( );	Returns the index within this string of the first occurrence of the specified character, starting the search at the specified index.
sal_Int32 lastIndexOf( sal_Char ch ) const throw( );	Returns the index within this string of the last occurrence of the specified character, searching backward starting at the end.
sal_Int32 lastIndexOf( sal_Char ch, sal_Int32 fromIndex ) const throw( );	Returns the index within this string of the last occurrence of the specified character, searching backward starting at the specified index.
sal_Int32 indexOf( const OString & str, sal_Int32 fromIndex = 0 ) const throw( );	Returns the index within this string of the first occurrence of the specified substring, starting at the specified index.
sal_Int32 lastIndexOf( const OString & str ) const throw( );	Returns the index within this string of the last occurrence of the specified substring, searching backward starting at the end.
sal_Int32 lastIndexOf( const OString & str, sal_Int32 fromIndex ) const throw( );	Returns the index within this string of the last occurrence of the specified substring, searching backward starting at the end.
OString copy( sal_Int32 beginIndex ) const throw( );	Returns a new string that is a substring of this string. The substring begins at the specified beginIndex.
OString copy( sal_Int32 beginIndex, sal_Int32 count ) const throw( );	Returns a new string that is a substring of this string.
OString concat( const OString & str ) const throw( );	Concatenates the specified string to the end of this string.
OString replaceAt( sal_Int32 index, sal_Int32 count, const OString & newStr ) const throw( );	Returns a new string resulting from replacing n = count characters from position index in this string with newStr.
OString replace( sal_Char oldChar, sal_Char newChar ) const throw( );	Returns a new string resulting from replacing all occurrences of oldChar in this string with newChar.
OString toAsciiLowerCase( ) const throw( );	Converts from this string all ASCII uppercase characters (65-90) to ASCII lowercase characters (97-122).
OString toAsciiUpperCase( ) const throw( );	Converts from this string all ASCII lowercase characters (97-122) to ASCII uppercase characters (65-90).
OString trim( ) const throw( );	Returns a new string resulting from removing white space from both ends of the string.
OString getToken( sal_Int32 token, sal_Char cTok, sal_Int32 & index ) const throw( );	Returns a token in the string.
sal_Bool toBoolean( ) const throw( );	Returns the Boolean value from this string.
sal_Char toChar( ) const throw( );	Returns the first character from this string.
sal_Int32 toInt32( sal_Int16 radix = 10 ) const throw( );	Returns the int32 value from this string.
sal_Int64 toInt64( sal_Int16 radix = 10 ) const throw( );	Returns the int64 value from this string.
float toFloat( ) const throw( );	Returns the float value from this string.
double toDouble( ) const throw( );	Returns the double value from this string.

Static Methods
static OString valueOf( sal_Bool b ) throw( );	Returns the string representation of the sal_Bool argument.
static OString valueOf( sal_Char c ) throw( );	Returns the string representation of the char argument.
static OString valueOf( sal_Int32 i, sal_Int16 radix = 10 ) throw( );	Returns the string representation of the int argument.
static OString valueOf( sal_Int64 l, sal_Int16 radix = 10 ) throw( );	Returns the string representation of the long argument.
static OString valueOf( float f ) throw( );	Returns the string representation of the float argument.
static OString valueOf( double d ) throw( );	Returns the string representation of the double argument.

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class OString

Public Members

Methods

Static Methods