bluecore/engine/Utilities/StringUtilities.h

120 lines
2.8 KiB
C++

#ifndef BLUECORE_STRING_UTILITIES_H
#define BLUECORE_STRING_UTILITIES_H
#include <iostream>
#include <string>
#include <vector>
namespace BlueCore {
#define SPACES " \t\r\n"
/**
* Function to remove whitespaces from the end of the string.
* @param s String to be trimmed.
* @param t String containing whitespaces. Default: space, tab, carriage return and newline.
*/
inline std::string trim_right(
const std::string &s,
const std::string &t = SPACES )
{
std::string::size_type i (s.find_last_not_of (t));
if (i == std::string::npos)
return "";
else
return std::string( s, 0, i );
}
/**
* Function to remove whitespaces from the beginning of the string.
* @param s String to be trimmed.
* @param t String containing whitespaces. Default: space, tab, carriage return and newline.
*/
inline std::string trim_left(
const std::string &s,
const std::string &t = SPACES )
{
return std::string( s, s.find_first_not_of(t) );
}
/**
* Function to remove whitespaces from the beginning and the end of the string.
* @param s String to be trimmed.
* @param t String containing whitespaces. Default: space, tab, carriage return and newline.
*/
inline std::string trim(
const std::string &s,
const std::string &t = SPACES )
{
std::string::size_type a = s.find_first_not_of(t), b = s.find_last_not_of(t);
if ( a == std::string::npos || b == std::string::npos )
return "";
return std::string( s, a, b-a+1 );
}
/**
* Splits a string into pieces, and returns them in an array.
* @param s String to be exploded.
* @param v Vector which receives the pieces.
* @param t String containing whitespaces. Default: space, tab, carriage return and newline.
* @param trim_spaces Flag to decide if pieces should be trimmed. Default: false.
*/
inline void explode(
const std::string &s,
std::vector<std::string> &v,
const bool trim_spaces = false,
const std::string &t = SPACES )
{
std::string::size_type a, b;
a = s.find_first_not_of(t), b = s.find_first_of(t, a);
while( a != std::string::npos )
{
if( trim_spaces )
v.push_back( trim( s.substr(a, b-a) ) );
else
v.push_back( s.substr(a, b-a) );
a = s.find_first_not_of(t, b), b = s.find_first_of(t, a);
}
}
/**
* Function to assemble strings from a vector into one strng.
* @param v Vector which conatins the string pieces.
* @param t String which is places between peaces. Default: one space " ".
* @return Assembled string.
*/
inline std::string implode(
const std::vector<std::string> &v,
const std::string &t = " " )
{
unsigned int i;
std::string s;
for( i = 0; i < (v.size() - 1); i++)
{
s.append( v[i] );
s.append( t );
}
return s+v[i];
}
} // namespace BlueCore
#endif