#ifndef _COMMON_H_
#define _COMMON_H_

#include <string>

inline std::string nl2br(const std::string& input)
{
	std::string output = input;

	std::string::size_type pos;
	while( (pos=output.find( '\n')) != std::string::npos)
	{
		output.replace(pos,1, "<br>");
	}

	return output;
}

inline std::string ltrim(const std::string& input)
{
	std::string output = input;
	while (  output.size()>0 && !isgraph(output[0]))
		output.erase(0,1);
	return output;
}

inline std::string rtrim(const std::string& input)
{
	std::string output = input;
	while ( output.size()>0 && !isgraph(output[output.size()-1]))
		output.erase(output.size()-1,1);
	return output;
}

inline std::string trim(const std::string& input)
{
	return ltrim(rtrim(input));
}


#endif // _COMMON_H_