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/*
Copyright 2007 - 2008 MySQL AB, 2008 - 2010 Sun Microsystems, Inc. All rights reserved.
The MySQL Connector/C++ is licensed under the terms of the GPL
<http://www.gnu.org/licenses/old-licenses/gpl-2.0.html>, like most
MySQL Connectors. There are special exceptions to the terms and
conditions of the GPL as it is applied to this software, see the
FLOSS License Exception
<http://www.mysql.com/about/legal/licensing/foss-exception.html>.
*/
#include "stringutils.h"
#include <stdlib.h>
#include <stdio.h>
namespace StringUtils
{
template <class StdStringType>
StdStringType & _trim( StdStringType & victim )
{
static const String::value_type * space = _T(" ");
String::size_type begin = victim.find_first_not_of( space );
String::size_type end = victim.find_last_not_of( space );
if ( begin == String::npos )
begin = 0;
if ( end == String::npos )
end = victim.size();
else
++end;
return victim.assign( victim, begin, end - begin );
}
template <class StdStringType>
unsigned _split( std::vector<StdStringType> & list, const StdStringType & str, const StdStringType & delim
, bool trimItems, bool includeEmpty )
{
unsigned int count= 0;
String::size_type prevPos= 0;
String::size_type newPos= 0;
String::size_type delimSize= delim.size();
String::size_type strSize= str.size();
StdStringType item;
while ( prevPos < strSize && (newPos = str.find(delim, prevPos)) != String::npos )
{
if ( newPos == prevPos && delimSize == 0 )
++newPos;
if ( newPos > prevPos || includeEmpty )
{
item = str.substr(prevPos, newPos - prevPos );
if ( trimItems )
_trim<StdStringType>( item );
list.push_back( item );
++count;
}
prevPos = newPos + delimSize;
}
/* if string has delimiter at the end, and includeEmpty flag is set
- we are doing that if delimiter is present (delimSize > 0) */
if ( prevPos == strSize && includeEmpty && delimSize > 0 )
{
list.push_back( _T("") );
++count;
}
/* else - adding part after last token*/
else if (prevPos < strSize )
{
item = str.substr(prevPos);
if (trimItems)
_trim<StdStringType>(item);
list.push_back( item );
++count;
}
return count;
}
// This function skips empties
unsigned split( List & list, const String & str, const String & delim
, bool trimItems, bool includeEmpty)
{
return _split<String>( list, str, delim, trimItems, includeEmpty );
}
// hack for split template
//ciString trim ( const String & victim )
unsigned split( std::vector<ciString> & list, const ciString & str, const ciString & delim
, bool trimItems, bool includeEmpty)
{
return _split<ciString>( list, str, delim, trimItems, includeEmpty );
}
String & trim( String & victim )
{
return _trim<String>( victim );
}
int toInt( const String & str, bool isNull )
{
if ( isNull )
return 0;
return atoi( str.c_str() );
}
bool toBoolean ( const String & str, bool isNull )
{
return toInt( str, isNull ) != 0;
}
long long toLong( const String & str, bool isNull )
{
if (isNull)
return 0L;
return strtoll(str.c_str(), NULL, 10);
}
float toFloat( const String & str, bool isNull )
{
return static_cast<float>( toDouble( str.c_str() ) );
}
double toDouble( const String & str, bool isNull )
{
if (isNull)
return 0.0;
return atof(str.c_str());
}
const String & defaultIfEmpty ( const String & str, const String & defStr )
{
if ( str.empty() )
return defStr;
else
return str;
}
String toHexString( char c, bool leading0x )
{
String result;
if ( leading0x )
result= "0x";
char buf[3];
sprintf( buf, "%02x", c & 0xff );
result.append( buf );
return result;
}
String::size_type toHexString( String & buff, char c[], int count, bool leading0x )
{
while( --count >= 0 )
{
buff+= toHexString( *c, leading0x );
if ( count )
{
buff+= " ";
++c;
}
}
return buff.size();
}
String & concatSeparated( String & to, const String & add, const String & separator )
{
if ( to.length() > 0 && add.length() > 0 )
to+= separator;
to+= add;
return to;
}
}
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