text: //
  // String.h
  //
  // $Id: //poco/1.4/Foundation/src/String.cpp#1 $
  //
  // Library: Foundation
  // Package: Core
  // Module:  String
  //
  // Copyright (c) 2004-2006, Applied Informatics Software Engineering GmbH.
  // and Contributors.
  //
  // SPDX-License-Identifier:	BSL-1.0
  //
  
  
  #include "Poco/PocoString.h"
  
  
  namespace Poco {
  
  
  #if defined(POCO_NO_TEMPLATE_ICOMPARE)
  
  
  int icompare(const std::string& str, std::string::size_type pos, std::string::size_type n, std::string::const_iterator it2, std::string::const_iterator end2)
  {
  	std::string::size_type sz = str.size();
  	if (pos > sz) pos = sz;
  	if (pos + n > sz) n = sz - pos;
  	std::string::const_iterator it1  = str.begin() + pos; 
  	std::string::const_iterator end1 = str.begin() + pos + n;
  	while (it1 != end1 && it2 != end2)
  	{
  	std::string::value_type c1 = Ascii::toLower(*it1);
  	std::string::value_type c2 = Ascii::toLower(*it2);
  	if (c1 < c2)
  		return -1;
  	else if (c1 > c2)
  		return 1;
  	++it1; ++it2;
  	}
  
  	if (it1 == end1)
  		return it2 == end2 ? 0 : -1;
  	else
  	return 1;
  }
  
  
  int icompare(const std::string& str1, const std::string& str2)
  {
  	return icompare(str1, 0, str1.size(), str2.begin(), str2.end());
  }
  
  
  int icompare(const std::string& str1, std::string::size_type n1, const std::string& str2, std::string::size_type n2)
  {
  	if (n2 > str2.size()) n2 = str2.size();
  	return icompare(str1, 0, n1, str2.begin(), str2.begin() + n2);
  }
  
  
  int icompare(const std::string& str1, std::string::size_type n, const std::string& str2)
  {
  	if (n > str2.size()) n = str2.size();
  	return icompare(str1, 0, n, str2.begin(), str2.begin() + n);
  }
  
  
  int icompare(const std::string& str1, std::string::size_type pos, std::string::size_type n, const std::string& str2)
  {
  	return icompare(str1, pos, n, str2.begin(), str2.end());
  }
  
  
  int icompare(const std::string& str1, std::string::size_type pos1, std::string::size_type n1, const std::string& str2, std::string::size_type pos2, std::string::size_type n2)
  {
  	std::string::size_type sz2 = str2.size();
  	if (pos2 > sz2) pos2 = sz2;
  	if (pos2 + n2 > sz2) n2 = sz2 - pos2;
  	return icompare(str1, pos1, n1, str2.begin() + pos2, str2.begin() + pos2 + n2);
  }
  
  
  int icompare(const std::string& str1, std::string::size_type pos1, std::string::size_type n, const std::string& str2, std::string::size_type pos2)
  {
  	std::string::size_type sz2 = str2.size();
  	if (pos2 > sz2) pos2 = sz2;
  	if (pos2 + n > sz2) n = sz2 - pos2;
  	return icompare(str1, pos1, n, str2.begin() + pos2, str2.begin() + pos2 + n);
  }
  
  
  int icompare(const std::string& str, std::string::size_type pos, std::string::size_type n, const std::string::value_type* ptr)
  {
  	poco_check_ptr (ptr);
  	std::string::size_type sz = str.size();
  	if (pos > sz) pos = sz;
  	if (pos + n > sz) n = sz - pos;
  	std::string::const_iterator it  = str.begin() + pos; 
  	std::string::const_iterator end = str.begin() + pos + n;
  	while (it != end && *ptr)
  	{
  	std::string::value_type c1 = Ascii::toLower(*it);
  	std::string::value_type c2 = Ascii::toLower(*ptr);
  	if (c1 < c2)
  		return -1;
  	else if (c1 > c2)
  		return 1;
  	++it; ++ptr;
  	}
  
  	if (it == end)
  		return *ptr == 0 ? 0 : -1;
  	else
  	return 1;
  }
  
  
  int icompare(const std::string& str, std::string::size_type pos, const std::string::value_type* ptr)
  {
  	return icompare(str, pos, str.size() - pos, ptr);
  }
  
  
  int icompare(const std::string& str, const std::string::value_type* ptr)
  {
  	return icompare(str, 0, str.size(), ptr);
  }
  
  
  std::string replace(const std::string& str, const std::string& from, const std::string& to, std::string::size_type start)
  {
  	std::string result(str);
  	replaceInPlace(result, from, to, start);
  	return result;
  }
  
  
  std::string replace(const std::string& str, const std::string::value_type* from, const std::string::value_type* to, std::string::size_type start)
  {
  	std::string result(str);
  	replaceInPlace(result, from, to, start);
  	return result;
  }
  
  
  std::string replace(const std::string& str, const std::string::value_type from, const std::string::value_type to, std::string::size_type start)
  {
  	std::string result(str);
  	replaceInPlace(result, from, to, start);
  	return result;
  }
  
  
  std::string remove(const std::string& str, const std::string::value_type ch, std::string::size_type start)
  {
  	std::string result(str);
  	replaceInPlace(result, ch, 0, start);
  	return result;
  }
  
  	
  std::string& replaceInPlace(std::string& str, const std::string& from, const std::string& to, std::string::size_type start)
  {
  	poco_assert (from.size() > 0);
  	
  	std::string result;
  	std::string::size_type pos = 0;
  	result.append(str, 0, start);
  	do
  	{
  		pos = str.find(from, start);
  		if (pos != std::string::npos)
  		{
  			result.append(str, start, pos - start);
  			result.append(to);
  			start = pos + from.length();
  		}
  		else result.append(str, start, str.size() - start);
  	}
  	while (pos != std::string::npos);
  	str.swap(result);
  	return str;
  }
  
  
  std::string& replaceInPlace(std::string& str, const std::string::value_type* from, const std::string::value_type* to, std::string::size_type start)
  {
  	poco_assert (*from);
  
  	std::string result;
  	std::string::size_type pos = 0;
  	std::string::size_type fromLen = std::strlen(from);
  	result.append(str, 0, start);
  	do
  	{
  		pos = str.find(from, start);
  		if (pos != std::string::npos)
  		{
  			result.append(str, start, pos - start);
  			result.append(to);
  			start = pos + fromLen;
  		}
  		else result.append(str, start, str.size() - start);
  	}
  	while (pos != std::string::npos);
  	str.swap(result);
  	return str;
  }
  
  
  std::string& replaceInPlace(std::string& str, const std::string::value_type from, const std::string::value_type to, std::string::size_type start)
  {
  	if (from == to) return str;
  
  	std::string::size_type pos = 0;
  	do
  	{
  		pos = str.find(from, start);
  		if (pos != std::string::npos)
  		{
  			if (to) str[pos] = to;
  			else str.erase(pos, 1);
  		}
  	} while (pos != std::string::npos);
  
  	return str;
  }
  
  
  std::string& removeInPlace(std::string& str, const std::string::value_type ch, std::string::size_type start)
  {
  	return replaceInPlace(str, ch, 0, start);
  }
  
  
  #endif
  
  
  } // namespace Poco
  