/usr/include/libreoffice/rtl/string.hxx is in libreoffice-dev 1:3.5.2-2ubuntu1.
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/*************************************************************************
*
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* Copyright 2000, 2010 Oracle and/or its affiliates.
*
* OpenOffice.org - a multi-platform office productivity suite
*
* This file is part of OpenOffice.org.
*
* OpenOffice.org is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License version 3
* only, as published by the Free Software Foundation.
*
* OpenOffice.org is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License version 3 for more details
* (a copy is included in the LICENSE file that accompanied this code).
*
* You should have received a copy of the GNU Lesser General Public License
* version 3 along with OpenOffice.org. If not, see
* <http://www.openoffice.org/license.html>
* for a copy of the LGPLv3 License.
*
************************************************************************/
#ifndef _RTL_STRING_HXX_
#define _RTL_STRING_HXX_
#include "sal/config.h"
#include <cassert>
#include <osl/diagnose.h>
#include <rtl/memory.h>
#include <rtl/textenc.h>
#include <rtl/string.h>
#include "sal/log.hxx"
#if !defined EXCEPTIONS_OFF
#include <new>
#endif
namespace rtl
{
/* ======================================================================= */
/**
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.
*/
class OString
{
public:
/** @internal */
rtl_String * pData;
private:
/** @internal */
class DO_NOT_ACQUIRE;
/** @internal */
OString( rtl_String * value, DO_NOT_ACQUIRE * )
{
pData = value;
}
public:
/**
New string containing no characters.
*/
OString() SAL_THROW(())
{
pData = 0;
rtl_string_new( &pData );
}
/**
New string from OString.
@param str a OString.
*/
OString( const OString & str ) SAL_THROW(())
{
pData = str.pData;
rtl_string_acquire( pData );
}
/**
New string from OString data.
@param str a OString data.
*/
OString( rtl_String * str ) SAL_THROW(())
{
pData = str;
rtl_string_acquire( pData );
}
/** New string from OString data without acquiring it. Takeover of ownership.
@param str a OString data.
@param dummy SAL_NO_ACQUIRE to distinguish from other ctors
*/
inline OString( rtl_String * str, __sal_NoAcquire ) SAL_THROW(())
{
pData = str;
}
/**
New string from a single character.
@param value a character.
*/
explicit OString( sal_Char value ) SAL_THROW(())
: pData (0)
{
rtl_string_newFromStr_WithLength( &pData, &value, 1 );
}
/**
New string from a character buffer array.
@param value a NULL-terminated character array.
*/
OString( const sal_Char * value ) SAL_THROW(())
{
pData = 0;
rtl_string_newFromStr( &pData, value );
}
/**
New string from a character buffer array.
@param value a character array.
@param length the number of character which should be copied.
The character array length must be greater or
equal than this value.
*/
OString( const sal_Char * value, sal_Int32 length ) SAL_THROW(())
{
pData = 0;
rtl_string_newFromStr_WithLength( &pData, value, length );
}
/**
New string from a Unicode character buffer array.
@param value a Unicode character array.
@param length the number of character which should be converted.
The Unicode character array length must be
greater or equal than this value.
@param encoding the text encoding in which the Unicode character
sequence should be converted.
@param convertFlags flags which controls the conversion.
see RTL_UNICODETOTEXT_FLAGS_...
@exception std::bad_alloc is thrown if an out-of-memory condition occurs
*/
OString( const sal_Unicode * value, sal_Int32 length,
rtl_TextEncoding encoding,
sal_uInt32 convertFlags = OUSTRING_TO_OSTRING_CVTFLAGS )
{
pData = 0;
rtl_uString2String( &pData, value, length, encoding, convertFlags );
if (pData == 0) {
#if defined EXCEPTIONS_OFF
SAL_WARN("sal", "std::bad_alloc but EXCEPTIONS_OFF");
#else
throw std::bad_alloc();
#endif
}
}
/**
Release the string data.
*/
~OString() SAL_THROW(())
{
rtl_string_release( pData );
}
/**
Assign a new string.
@param str a OString.
*/
OString & operator=( const OString & str ) SAL_THROW(())
{
rtl_string_assign( &pData, str.pData );
return *this;
}
/**
Append a string to this string.
@param str a OString.
*/
OString & operator+=( const OString & str ) SAL_THROW(())
{
rtl_string_newConcat( &pData, pData, str.pData );
return *this;
}
/**
Returns the length of this string.
The length is equal to the number of characters in this string.
@return the length of the sequence of characters represented by this
object.
*/
sal_Int32 getLength() const SAL_THROW(()) { return pData->length; }
/**
Checks if a string is empty.
@return sal_True if the string is empty;
sal_False, otherwise.
@since LibreOffice 3.4
*/
sal_Bool isEmpty() const SAL_THROW(())
{
if ( pData->length )
return sal_False;
else
return sal_True;
}
/**
Returns a pointer to the characters of this string.
<p>The returned pointer is guaranteed to point to a null-terminated byte
string. But note that this string object may contain embedded null
characters, which will thus also be embedded in the returned
null-terminated byte string.</p>
@return a pointer to a null-terminated byte string representing the
characters of this string object.
*/
const sal_Char * getStr() const SAL_THROW(()) { return pData->buffer; }
/**
Access to individual characters.
@param index must be non-negative and less than length.
@return the character at the given index.
@since LibreOffice 3.5
*/
sal_Char operator [](sal_Int32 index) const { return getStr()[index]; }
/**
Compares two strings.
The comparison is based on the numeric value of each character in
the strings and return a value indicating their relationship.
This function can't be used for language specific sorting.
@param str the object to be compared.
@return 0 - if both strings are equal
< 0 - if this string is less than the string argument
> 0 - if this string is greater than the string argument
*/
sal_Int32 compareTo( const OString & str ) const SAL_THROW(())
{
return rtl_str_compare_WithLength( pData->buffer, pData->length,
str.pData->buffer, str.pData->length );
}
/**
Compares two strings with an maximum count of characters.
The comparison is based on the numeric value of each character in
the strings and return a value indicating their relationship.
This function can't be used for language specific sorting.
@param str the object to be compared.
@param maxLength the maximum count of characters to be compared.
@return 0 - if both strings are equal
< 0 - if this string is less than the string argument
> 0 - if this string is greater than the string argument
*/
sal_Int32 compareTo( const OString & rObj, sal_Int32 maxLength ) const SAL_THROW(())
{
return rtl_str_shortenedCompare_WithLength( pData->buffer, pData->length,
rObj.pData->buffer, rObj.pData->length, maxLength );
}
/**
Compares two strings in reverse order.
The comparison is based on the numeric value of each character in
the strings and return a value indicating their relationship.
This function can't be used for language specific sorting.
@param str the object to be compared.
@return 0 - if both strings are equal
< 0 - if this string is less than the string argument
> 0 - if this string is greater than the string argument
*/
sal_Int32 reverseCompareTo( const OString & str ) const SAL_THROW(())
{
return rtl_str_reverseCompare_WithLength( pData->buffer, pData->length,
str.pData->buffer, str.pData->length );
}
/**
Perform a comparison of two strings.
The result is true if and only if second string
represents the same sequence of characters as the first string.
This function can't be used for language specific comparison.
@param str the object to be compared.
@return sal_True if the strings are equal;
sal_False, otherwise.
*/
sal_Bool equals( const OString & str ) const SAL_THROW(())
{
if ( pData->length != str.pData->length )
return sal_False;
if ( pData == str.pData )
return sal_True;
return rtl_str_reverseCompare_WithLength( pData->buffer, pData->length,
str.pData->buffer, str.pData->length ) == 0;
}
/**
Perform a comparison of two strings.
The result is true if and only if second string
represents the same sequence of characters as the first string.
The ASCII string must be NULL-terminated and must be greater or
equal as length.
This function can't be used for language specific comparison.
@param value a character array.
@param length the length of the character array.
@return sal_True if the strings are equal;
sal_False, otherwise.
*/
sal_Bool equalsL( const sal_Char* value, sal_Int32 length ) const SAL_THROW(())
{
if ( pData->length != length )
return sal_False;
return rtl_str_reverseCompare_WithLength( pData->buffer, pData->length,
value, length ) == 0;
}
/**
Perform a ASCII lowercase comparison of two strings.
The result is true if and only if second string
represents the same sequence of characters as the first string,
ignoring the case.
Character values between 65 and 90 (ASCII A-Z) are interpreted as
values between 97 and 122 (ASCII a-z).
This function can't be used for language specific comparison.
@param str the object to be compared.
@return sal_True if the strings are equal;
sal_False, otherwise.
*/
sal_Bool equalsIgnoreAsciiCase( const OString & str ) const SAL_THROW(())
{
if ( pData->length != str.pData->length )
return sal_False;
if ( pData == str.pData )
return sal_True;
return rtl_str_compareIgnoreAsciiCase_WithLength( pData->buffer, pData->length,
str.pData->buffer, str.pData->length ) == 0;
}
/**
Perform a ASCII lowercase comparison of two strings.
The result is true if and only if second string
represents the same sequence of characters as the first string,
ignoring the case.
Character values between 65 and 90 (ASCII A-Z) are interpreted as
values between 97 and 122 (ASCII a-z).
Since this method is optimized for performance, the ASCII character
values are not converted in any way. The caller has to make sure that
all ASCII characters are in the allowed range between 0 and
127. The ASCII string must be NULL-terminated.
This function can't be used for language specific comparison.
@param asciiStr the 8-Bit ASCII character string to be compared.
@return sal_True if the strings are equal;
sal_False, otherwise.
*/
sal_Bool equalsIgnoreAsciiCase( const sal_Char * asciiStr ) const SAL_THROW(())
{
return rtl_str_compareIgnoreAsciiCase( pData->buffer, asciiStr ) == 0;
}
/**
Perform a ASCII lowercase comparison of two strings.
The result is true if and only if second string
represents the same sequence of characters as the first string,
ignoring the case.
Character values between 65 and 90 (ASCII A-Z) are interpreted as
values between 97 and 122 (ASCII a-z).
Since this method is optimized for performance, the ASCII character
values are not converted in any way. The caller has to make sure that
all ASCII characters are in the allowed range between 0 and
127. The ASCII string must be greater or equal in length as asciiStrLength.
This function can't be used for language specific comparison.
@param asciiStr the 8-Bit ASCII character string to be compared.
@param asciiStrLength the length of the ascii string
@return sal_True if the strings are equal;
sal_False, otherwise.
*/
sal_Bool equalsIgnoreAsciiCaseL( const sal_Char * asciiStr, sal_Int32 asciiStrLength ) const SAL_THROW(())
{
if ( pData->length != asciiStrLength )
return sal_False;
return rtl_str_compareIgnoreAsciiCase_WithLength( pData->buffer, pData->length,
asciiStr, asciiStrLength ) == 0;
}
/**
Match against a substring appearing in this string.
The result is true if and only if the second string appears as a substring
of this string, at the given position.
This function can't be used for language specific comparison.
@param str the object (substring) to be compared.
@param fromIndex the index to start the comparion from.
The index must be greater or equal than 0
and less or equal as the string length.
@return sal_True if str match with the characters in the string
at the given position;
sal_False, otherwise.
*/
sal_Bool match( const OString & str, sal_Int32 fromIndex = 0 ) const SAL_THROW(())
{
return rtl_str_shortenedCompare_WithLength( pData->buffer+fromIndex, pData->length-fromIndex,
str.pData->buffer, str.pData->length, str.pData->length ) == 0;
}
/**
Match against a substring appearing in this string, ignoring the case of
ASCII letters.
The result is true if and only if the second string appears as a substring
of this string, at the given position.
Character values between 65 and 90 (ASCII A-Z) are interpreted as
values between 97 and 122 (ASCII a-z).
This function can't be used for language specific comparison.
@param str the object (substring) to be compared.
@param fromIndex the index to start the comparion from.
The index must be greater or equal than 0
and less or equal as the string length.
@return sal_True if str match with the characters in the string
at the given position;
sal_False, otherwise.
*/
sal_Bool matchIgnoreAsciiCase( const OString & str, sal_Int32 fromIndex = 0 ) const SAL_THROW(())
{
return rtl_str_shortenedCompareIgnoreAsciiCase_WithLength( pData->buffer+fromIndex, pData->length-fromIndex,
str.pData->buffer, str.pData->length,
str.pData->length ) == 0;
}
friend sal_Bool operator == ( const OString& rStr1, const OString& rStr2 ) SAL_THROW(())
{ return rStr1.getLength() == rStr2.getLength() && rStr1.compareTo( rStr2 ) == 0; }
friend sal_Bool operator == ( const OString& rStr1, const sal_Char * pStr2 ) SAL_THROW(())
{ return rStr1.compareTo( pStr2 ) == 0; }
friend sal_Bool operator == ( const sal_Char * pStr1, const OString& rStr2 ) SAL_THROW(())
{ return OString( pStr1 ).compareTo( rStr2 ) == 0; }
friend sal_Bool operator != ( const OString& rStr1, const OString& rStr2 ) SAL_THROW(())
{ return !(operator == ( rStr1, rStr2 )); }
friend sal_Bool operator != ( const OString& rStr1, const sal_Char * pStr2 ) SAL_THROW(())
{ return !(operator == ( rStr1, pStr2 )); }
friend sal_Bool operator != ( const sal_Char * pStr1, const OString& rStr2 ) SAL_THROW(())
{ return !(operator == ( pStr1, rStr2 )); }
friend sal_Bool operator < ( const OString& rStr1, const OString& rStr2 ) SAL_THROW(())
{ return rStr1.compareTo( rStr2 ) < 0; }
friend sal_Bool operator > ( const OString& rStr1, const OString& rStr2 ) SAL_THROW(())
{ return rStr1.compareTo( rStr2 ) > 0; }
friend sal_Bool operator <= ( const OString& rStr1, const OString& rStr2 ) SAL_THROW(())
{ return rStr1.compareTo( rStr2 ) <= 0; }
friend sal_Bool operator >= ( const OString& rStr1, const OString& rStr2 ) SAL_THROW(())
{ return rStr1.compareTo( rStr2 ) >= 0; }
/**
Returns a hashcode for this string.
@return a hash code value for this object.
@see rtl::OStringHash for convenient use of boost::unordered_map
*/
sal_Int32 hashCode() const SAL_THROW(())
{
return rtl_str_hashCode_WithLength( pData->buffer, pData->length );
}
/**
Returns the index within this string of the first occurrence of the
specified character, starting the search at the specified index.
@param ch character to be located.
@param fromIndex the index to start the search from.
The index must be greater or equal than 0
and less or equal as the string length.
@return the index of the first occurrence of the character in the
character sequence represented by this string that is
greater than or equal to fromIndex, or
-1 if the character does not occur.
*/
sal_Int32 indexOf( sal_Char ch, sal_Int32 fromIndex = 0 ) const SAL_THROW(())
{
sal_Int32 ret = rtl_str_indexOfChar_WithLength( pData->buffer+fromIndex, pData->length-fromIndex, ch );
return (ret < 0 ? ret : ret+fromIndex);
}
/**
Returns the index within this string of the last occurrence of the
specified character, searching backward starting at the end.
@param ch character to be located.
@return the index of the last occurrence of the character in the
character sequence represented by this string, or
-1 if the character does not occur.
*/
sal_Int32 lastIndexOf( sal_Char ch ) const SAL_THROW(())
{
return rtl_str_lastIndexOfChar_WithLength( pData->buffer, pData->length, ch );
}
/**
Returns the index within this string of the last occurrence of the
specified character, searching backward starting before the specified
index.
@param ch character to be located.
@param fromIndex the index before which to start the search.
@return the index of the last occurrence of the character in the
character sequence represented by this string that
is less than fromIndex, or -1
if the character does not occur before that point.
*/
sal_Int32 lastIndexOf( sal_Char ch, sal_Int32 fromIndex ) const SAL_THROW(())
{
return rtl_str_lastIndexOfChar_WithLength( pData->buffer, fromIndex, ch );
}
/**
Returns the index within this string of the first occurrence of the
specified substring, starting at the specified index.
If str doesn't include any character, always -1 is
returned. This is also the case, if both strings are empty.
@param str the substring to search for.
@param fromIndex the index to start the search from.
@return If the string argument occurs one or more times as a substring
within this string at the starting index, then the index
of the first character of the first such substring is
returned. If it does not occur as a substring starting
at fromIndex or beyond, -1 is returned.
*/
sal_Int32 indexOf( const OString & str, sal_Int32 fromIndex = 0 ) const SAL_THROW(())
{
sal_Int32 ret = rtl_str_indexOfStr_WithLength( pData->buffer+fromIndex, pData->length-fromIndex,
str.pData->buffer, str.pData->length );
return (ret < 0 ? ret : ret+fromIndex);
}
/**
Returns the index within this string of the last occurrence of
the specified substring, searching backward starting at the end.
The returned index indicates the starting index of the substring
in this string.
If str doesn't include any character, always -1 is
returned. This is also the case, if both strings are empty.
@param str the substring to search for.
@return If the string argument occurs one or more times as a substring
within this string, then the index of the first character of
the last such substring is returned. If it does not occur as
a substring, -1 is returned.
*/
sal_Int32 lastIndexOf( const OString & str ) const SAL_THROW(())
{
return rtl_str_lastIndexOfStr_WithLength( pData->buffer, pData->length,
str.pData->buffer, str.pData->length );
}
/**
Returns the index within this string of the last occurrence of
the specified substring, searching backward starting before the specified
index.
The returned index indicates the starting index of the substring
in this string.
If str doesn't include any character, always -1 is
returned. This is also the case, if both strings are empty.
@param str the substring to search for.
@param fromIndex the index before which to start the search.
@return If the string argument occurs one or more times as a substring
within this string before the starting index, then the index
of the first character of the last such substring is
returned. Otherwise, -1 is returned.
*/
sal_Int32 lastIndexOf( const OString & str, sal_Int32 fromIndex ) const SAL_THROW(())
{
return rtl_str_lastIndexOfStr_WithLength( pData->buffer, fromIndex,
str.pData->buffer, str.pData->length );
}
/**
Returns a new string that is a substring of this string.
The substring begins at the specified beginIndex. It is an error for
beginIndex to be negative or to be greater than the length of this string.
@param beginIndex the beginning index, inclusive.
@return the specified substring.
*/
OString copy( sal_Int32 beginIndex ) const SAL_THROW(())
{
assert(beginIndex >= 0 && beginIndex <= getLength());
if ( beginIndex == 0 )
return *this;
else
{
rtl_String* pNew = 0;
rtl_string_newFromStr_WithLength( &pNew, pData->buffer+beginIndex, getLength()-beginIndex );
return OString( pNew, (DO_NOT_ACQUIRE*)0 );
}
}
/**
Returns a new string that is a substring of this string.
The substring begins at the specified beginIndex and contains count
characters. It is an error for either beginIndex or count to be negative,
or for beginIndex + count to be greater than the length of this string.
@param beginIndex the beginning index, inclusive.
@param count the number of characters.
@return the specified substring.
*/
OString copy( sal_Int32 beginIndex, sal_Int32 count ) const SAL_THROW(())
{
assert(beginIndex >= 0 && beginIndex <= getLength()
&& count >= 0 && count <= getLength() - beginIndex);
if ( (beginIndex == 0) && (count == getLength()) )
return *this;
else
{
rtl_String* pNew = 0;
rtl_string_newFromStr_WithLength( &pNew, pData->buffer+beginIndex, count );
return OString( pNew, (DO_NOT_ACQUIRE*)0 );
}
}
/**
Concatenates the specified string to the end of this string.
@param str the string that is concatenated to the end
of this string.
@return a string that represents the concatenation of this string
followed by the string argument.
*/
OString concat( const OString & str ) const SAL_THROW(())
{
rtl_String* pNew = 0;
rtl_string_newConcat( &pNew, pData, str.pData );
return OString( pNew, (DO_NOT_ACQUIRE*)0 );
}
friend OString operator+( const OString & str1, const OString & str2 ) SAL_THROW(())
{
return str1.concat( str2 );
}
/**
Returns a new string resulting from replacing n = count characters
from position index in this string with newStr.
@param index the replacing index in str.
The index must be greater or equal as 0 and
less or equal as the length of the string.
@param count the count of charcters that will replaced
The count must be greater or equal as 0 and
less or equal as the length of the string minus index.
@param newStr the new substring.
@return the new string.
*/
OString replaceAt( sal_Int32 index, sal_Int32 count, const OString& newStr ) const SAL_THROW(())
{
rtl_String* pNew = 0;
rtl_string_newReplaceStrAt( &pNew, pData, index, count, newStr.pData );
return OString( pNew, (DO_NOT_ACQUIRE*)0 );
}
/**
Returns a new string resulting from replacing all occurrences of
oldChar in this string with newChar.
If the character oldChar does not occur in the character sequence
represented by this object, then the string is assigned with
str.
@param oldChar the old character.
@param newChar the new character.
@return a string derived from this string by replacing every
occurrence of oldChar with newChar.
*/
OString replace( sal_Char oldChar, sal_Char newChar ) const SAL_THROW(())
{
rtl_String* pNew = 0;
rtl_string_newReplace( &pNew, pData, oldChar, newChar );
return OString( pNew, (DO_NOT_ACQUIRE*)0 );
}
/**
Converts from this string all ASCII uppercase characters (65-90)
to ASCII lowercase characters (97-122).
This function can't be used for language specific conversion.
If the string doesn't contain characters which must be converted,
then the new string is assigned with str.
@return the string, converted to ASCII lowercase.
*/
OString toAsciiLowerCase() const SAL_THROW(())
{
rtl_String* pNew = 0;
rtl_string_newToAsciiLowerCase( &pNew, pData );
return OString( pNew, (DO_NOT_ACQUIRE*)0 );
}
/**
Converts from this string all ASCII lowercase characters (97-122)
to ASCII uppercase characters (65-90).
This function can't be used for language specific conversion.
If the string doesn't contain characters which must be converted,
then the new string is assigned with str.
@return the string, converted to ASCII uppercase.
*/
OString toAsciiUpperCase() const SAL_THROW(())
{
rtl_String* pNew = 0;
rtl_string_newToAsciiUpperCase( &pNew, pData );
return OString( pNew, (DO_NOT_ACQUIRE*)0 );
}
/**
Returns a new string resulting from removing white space from both ends
of the string.
All characters that have codes less than or equal to
32 (the space character) are considered to be white space.
If the string doesn't contain white spaces at both ends,
then the new string is assigned with str.
@return the string, with white space removed from the front and end.
*/
OString trim() const SAL_THROW(())
{
rtl_String* pNew = 0;
rtl_string_newTrim( &pNew, pData );
return OString( pNew, (DO_NOT_ACQUIRE*)0 );
}
/**
Returns a token in the string.
Example:
sal_Int32 nIndex = 0;
do
{
...
OString aToken = aStr.getToken( 0, ';', nIndex );
...
}
while ( nIndex >= 0 );
@param token the number of the token to return.
@param cTok the character which seperate the tokens.
@param index the position at which the token is searched in the
string.
The index must not be greater thanthe length of the
string.
This param is set to the position of the
next token or to -1, if it is the last token.
@return the token; if either token or index is negative, an empty token
is returned (and index is set to -1)
*/
OString getToken( sal_Int32 token, sal_Char cTok, sal_Int32& index ) const SAL_THROW(())
{
rtl_String * pNew = 0;
index = rtl_string_getToken( &pNew, pData, token, cTok, index );
return OString( pNew, (DO_NOT_ACQUIRE *)0 );
}
/**
Returns the Boolean value from this string.
This function can't be used for language specific conversion.
@return sal_True, if the string is 1 or "True" in any ASCII case.
sal_False in any other case.
*/
sal_Bool toBoolean() const SAL_THROW(())
{
return rtl_str_toBoolean( pData->buffer );
}
/**
Returns the first character from this string.
@return the first character from this string or 0, if this string
is emptry.
*/
sal_Char toChar() const SAL_THROW(())
{
return pData->buffer[0];
}
/**
Returns the int32 value from this string.
This function can't be used for language specific conversion.
@param radix the radix (between 2 and 36)
@return the int32 represented from this string.
0 if this string represents no number.
*/
sal_Int32 toInt32( sal_Int16 radix = 10 ) const SAL_THROW(())
{
return rtl_str_toInt32( pData->buffer, radix );
}
/**
Returns the int64 value from this string.
This function can't be used for language specific conversion.
@param radix the radix (between 2 and 36)
@return the int64 represented from this string.
0 if this string represents no number.
*/
sal_Int64 toInt64( sal_Int16 radix = 10 ) const SAL_THROW(())
{
return rtl_str_toInt64( pData->buffer, radix );
}
/**
Returns the float value from this string.
This function can't be used for language specific conversion.
@return the float represented from this string.
0.0 if this string represents no number.
*/
float toFloat() const SAL_THROW(())
{
return rtl_str_toFloat( pData->buffer );
}
/**
Returns the double value from this string.
This function can't be used for language specific conversion.
@return the double represented from this string.
0.0 if this string represents no number.
*/
double toDouble() const SAL_THROW(())
{
return rtl_str_toDouble( pData->buffer );
}
/**
Returns the string representation of the sal_Bool argument.
If the sal_Bool is true, the string "true" is returned.
If the sal_Bool is false, the string "false" is returned.
This function can't be used for language specific conversion.
@param b a sal_Bool.
@return a string with the string representation of the argument.
*/
static OString valueOf( sal_Bool b ) SAL_THROW(())
{
sal_Char aBuf[RTL_STR_MAX_VALUEOFBOOLEAN];
rtl_String* pNewData = 0;
rtl_string_newFromStr_WithLength( &pNewData, aBuf, rtl_str_valueOfBoolean( aBuf, b ) );
return OString( pNewData, (DO_NOT_ACQUIRE*)0 );
}
/**
Returns the string representation of the char argument.
@param c a character.
@return a string with the string representation of the argument.
*/
static OString valueOf( sal_Char c ) SAL_THROW(())
{
return OString( &c, 1 );
}
/**
Returns the string representation of the int argument.
This function can't be used for language specific conversion.
@param i a int32.
@param radix the radix (between 2 and 36)
@return a string with the string representation of the argument.
*/
static OString valueOf( sal_Int32 i, sal_Int16 radix = 10 ) SAL_THROW(())
{
sal_Char aBuf[RTL_STR_MAX_VALUEOFINT32];
rtl_String* pNewData = 0;
rtl_string_newFromStr_WithLength( &pNewData, aBuf, rtl_str_valueOfInt32( aBuf, i, radix ) );
return OString( pNewData, (DO_NOT_ACQUIRE*)0 );
}
/**
Returns the string representation of the long argument.
This function can't be used for language specific conversion.
@param ll a int64.
@param radix the radix (between 2 and 36)
@return a string with the string representation of the argument.
*/
static OString valueOf( sal_Int64 ll, sal_Int16 radix = 10 ) SAL_THROW(())
{
sal_Char aBuf[RTL_STR_MAX_VALUEOFINT64];
rtl_String* pNewData = 0;
rtl_string_newFromStr_WithLength( &pNewData, aBuf, rtl_str_valueOfInt64( aBuf, ll, radix ) );
return OString( pNewData, (DO_NOT_ACQUIRE*)0 );
}
/**
Returns the string representation of the float argument.
This function can't be used for language specific conversion.
@param f a float.
@return a string with the string representation of the argument.
*/
static OString valueOf( float f ) SAL_THROW(())
{
sal_Char aBuf[RTL_STR_MAX_VALUEOFFLOAT];
rtl_String* pNewData = 0;
rtl_string_newFromStr_WithLength( &pNewData, aBuf, rtl_str_valueOfFloat( aBuf, f ) );
return OString( pNewData, (DO_NOT_ACQUIRE*)0 );
}
/**
Returns the string representation of the double argument.
This function can't be used for language specific conversion.
@param d a double.
@return a string with the string representation of the argument.
*/
static OString valueOf( double d ) SAL_THROW(())
{
sal_Char aBuf[RTL_STR_MAX_VALUEOFDOUBLE];
rtl_String* pNewData = 0;
rtl_string_newFromStr_WithLength( &pNewData, aBuf, rtl_str_valueOfDouble( aBuf, d ) );
return OString( pNewData, (DO_NOT_ACQUIRE*)0 );
}
};
/* ======================================================================= */
/** A helper to use OStrings with hash maps.
Instances of this class are unary function objects that can be used as
hash function arguments to boost::unordered_map and similar constructs.
*/
struct OStringHash
{
/** Compute a hash code for a string.
@param rString
a string.
@return
a hash code for the string. This hash code should not be stored
persistently, as its computation may change in later revisions.
*/
size_t operator()( const rtl::OString& rString ) const
{ return (size_t)rString.hashCode(); }
};
/* ======================================================================= */
} /* Namespace */
#endif /* _RTL_STRING_HXX_ */
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