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			723 lines
		
	
	
		
			17 KiB
		
	
	
	
		
			C++
		
	
	
	
	
	
			
		
		
	
	
			723 lines
		
	
	
		
			17 KiB
		
	
	
	
		
			C++
		
	
	
	
	
	
| //
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| // String.h
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| //
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| // Library: Foundation
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| // Package: Core
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| // Module:  String
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| //
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| // String utility functions.
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| //
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| // Copyright (c) 2004-2006, Applied Informatics Software Engineering GmbH.
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| // and Contributors.
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| //
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| // SPDX-License-Identifier:	BSL-1.0
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| //
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| 
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| 
 | |
| #ifndef Foundation_String_INCLUDED
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| #define Foundation_String_INCLUDED
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| 
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| 
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| #include "Poco/Foundation.h"
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| #include "Poco/Ascii.h"
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| #include <cstring>
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| #include <algorithm>
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| 
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| 
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| namespace Poco {
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| 
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| 
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| template <class S>
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| S trimLeft(const S& str)
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| 	/// Returns a copy of str with all leading
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| 	/// whitespace removed.
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| {
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| 	typename S::const_iterator it  = str.begin();
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| 	typename S::const_iterator end = str.end();
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| 
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| 	while (it != end && Ascii::isSpace(*it)) ++it;
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| 	return S(it, end);
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| }
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| 
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| 
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| template <class S>
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| S& trimLeftInPlace(S& str)
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| 	/// Removes all leading whitespace in str.
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| {
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| 	typename S::iterator it  = str.begin();
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| 	typename S::iterator end = str.end();
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| 
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| 	while (it != end && Ascii::isSpace(*it)) ++it;
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| 	str.erase(str.begin(), it);
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| 	return str;
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| }
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| 
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| 
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| template <class S>
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| S trimRight(const S& str)
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| 	/// Returns a copy of str with all trailing
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| 	/// whitespace removed.
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| {
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| 	int pos = int(str.size()) - 1;
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| 
 | |
| 	while (pos >= 0 && Ascii::isSpace(str[pos])) --pos;
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| 	return S(str, 0, pos + 1);
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| }
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| 
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| 
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| template <class S>
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| S& trimRightInPlace(S& str)
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| 	/// Removes all trailing whitespace in str.
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| {
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| 	int pos = int(str.size()) - 1;
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| 
 | |
| 	while (pos >= 0 && Ascii::isSpace(str[pos])) --pos;
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| 	str.resize(pos + 1);
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| 
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| 	return str;
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| }
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| 
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| 
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| template <class S>
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| S trim(const S& str)
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| 	/// Returns a copy of str with all leading and
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| 	/// trailing whitespace removed.
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| {
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| 	int first = 0;
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| 	int last  = int(str.size()) - 1;
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| 
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| 	while (first <= last && Ascii::isSpace(str[first])) ++first;
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| 	while (last >= first && Ascii::isSpace(str[last])) --last;
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| 
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| 	return S(str, first, last - first + 1);
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| }
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| 
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| 
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| template <class S>
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| S& trimInPlace(S& str)
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| 	/// Removes all leading and trailing whitespace in str.
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| {
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| 	int first = 0;
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| 	int last  = int(str.size()) - 1;
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| 
 | |
| 	while (first <= last && Ascii::isSpace(str[first])) ++first;
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| 	while (last >= first && Ascii::isSpace(str[last])) --last;
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| 
 | |
| 	str.resize(last + 1);
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| 	str.erase(0, first);
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| 
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| 	return str;
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| }
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| 
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| 
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| template <class S>
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| S toUpper(const S& str)
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| 	/// Returns a copy of str containing all upper-case characters.
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| {
 | |
| 	typename S::const_iterator it  = str.begin();
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| 	typename S::const_iterator end = str.end();
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| 
 | |
| 	S result;
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| 	result.reserve(str.size());
 | |
| 	while (it != end) result += static_cast<typename S::value_type>(Ascii::toUpper(*it++));
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| 	return result;
 | |
| }
 | |
| 
 | |
| 
 | |
| template <class S>
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| S& toUpperInPlace(S& str)
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| 	/// Replaces all characters in str with their upper-case counterparts.
 | |
| {
 | |
| 	typename S::iterator it  = str.begin();
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| 	typename S::iterator end = str.end();
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| 
 | |
| 	while (it != end) { *it = static_cast<typename S::value_type>(Ascii::toUpper(*it)); ++it; }
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| 	return str;
 | |
| }
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| 
 | |
| 
 | |
| template <class S>
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| S toLower(const S& str)
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| 	/// Returns a copy of str containing all lower-case characters.
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| {
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| 	typename S::const_iterator it  = str.begin();
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| 	typename S::const_iterator end = str.end();
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| 
 | |
| 	S result;
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| 	result.reserve(str.size());
 | |
| 	while (it != end) result += static_cast<typename S::value_type>(Ascii::toLower(*it++));
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| 	return result;
 | |
| }
 | |
| 
 | |
| 
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| template <class S>
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| S& toLowerInPlace(S& str)
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| 	/// Replaces all characters in str with their lower-case counterparts.
 | |
| {
 | |
| 	typename S::iterator it  = str.begin();
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| 	typename S::iterator end = str.end();
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| 
 | |
| 	while (it != end) { *it = static_cast<typename S::value_type>(Ascii::toLower(*it)); ++it; }
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| 	return str;
 | |
| }
 | |
| 
 | |
| 
 | |
| #if !defined(POCO_NO_TEMPLATE_ICOMPARE)
 | |
| 
 | |
| 
 | |
| template <class S, class It>
 | |
| int icompare(
 | |
| 	const S& str,
 | |
| 	typename S::size_type pos,
 | |
| 	typename S::size_type n,
 | |
| 	It it2,
 | |
| 	It end2)
 | |
| 	/// Case-insensitive string comparison
 | |
| {
 | |
| 	typename S::size_type sz = str.size();
 | |
| 	if (pos > sz) pos = sz;
 | |
| 	if (pos + n > sz) n = sz - pos;
 | |
| 	It it1  = str.begin() + pos;
 | |
| 	It end1 = str.begin() + pos + n;
 | |
| 	while (it1 != end1 && it2 != end2)
 | |
| 	{
 | |
| 		typename S::value_type c1(static_cast<typename S::value_type>(Ascii::toLower(*it1)));
 | |
| 		typename S::value_type c2(static_cast<typename S::value_type>(Ascii::toLower(*it2)));
 | |
| 		if (c1 < c2)
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| 			return -1;
 | |
| 		else if (c1 > c2)
 | |
| 			return 1;
 | |
| 		++it1; ++it2;
 | |
| 	}
 | |
| 
 | |
| 	if (it1 == end1)
 | |
| 		return it2 == end2 ? 0 : -1;
 | |
| 	else
 | |
| 		return 1;
 | |
| }
 | |
| 
 | |
| 
 | |
| template <class S>
 | |
| int icompare(const S& str1, const S& str2)
 | |
| 	// A special optimization for an often used case.
 | |
| {
 | |
| 	typename S::const_iterator it1(str1.begin());
 | |
| 	typename S::const_iterator end1(str1.end());
 | |
| 	typename S::const_iterator it2(str2.begin());
 | |
| 	typename S::const_iterator end2(str2.end());
 | |
| 	while (it1 != end1 && it2 != end2)
 | |
| 	{
 | |
| 		typename S::value_type c1(static_cast<typename S::value_type>(Ascii::toLower(*it1)));
 | |
| 		typename S::value_type c2(static_cast<typename S::value_type>(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;
 | |
| }
 | |
| 
 | |
| 
 | |
| template <class S>
 | |
| int icompare(const S& str1, typename S::size_type n1, const S& str2, typename S::size_type n2)
 | |
| {
 | |
| 	if (n2 > str2.size()) n2 = str2.size();
 | |
| 	return icompare(str1, 0, n1, str2.begin(), str2.begin() + n2);
 | |
| }
 | |
| 
 | |
| 
 | |
| template <class S>
 | |
| int icompare(const S& str1, typename S::size_type n, const S& str2)
 | |
| {
 | |
| 	if (n > str2.size()) n = str2.size();
 | |
| 	return icompare(str1, 0, n, str2.begin(), str2.begin() + n);
 | |
| }
 | |
| 
 | |
| 
 | |
| template <class S>
 | |
| int icompare(const S& str1, typename S::size_type pos, typename S::size_type n, const S& str2)
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| {
 | |
| 	return icompare(str1, pos, n, str2.begin(), str2.end());
 | |
| }
 | |
| 
 | |
| 
 | |
| template <class S>
 | |
| int icompare(
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| 	const S& str1,
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| 	typename S::size_type pos1,
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| 	typename S::size_type n1,
 | |
| 	const S& str2,
 | |
| 	typename S::size_type pos2,
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| 	typename S::size_type n2)
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| {
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| 	typename S::size_type sz2 = str2.size();
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| 	if (pos2 > sz2) pos2 = sz2;
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| 	if (pos2 + n2 > sz2) n2 = sz2 - pos2;
 | |
| 	return icompare(str1, pos1, n1, str2.begin() + pos2, str2.begin() + pos2 + n2);
 | |
| }
 | |
| 
 | |
| 
 | |
| template <class S>
 | |
| int icompare(
 | |
| 	const S& str1,
 | |
| 	typename S::size_type pos1,
 | |
| 	typename S::size_type n,
 | |
| 	const S& str2,
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| 	typename S::size_type pos2)
 | |
| {
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| 	typename S::size_type sz2 = str2.size();
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| 	if (pos2 > sz2) pos2 = sz2;
 | |
| 	if (pos2 + n > sz2) n = sz2 - pos2;
 | |
| 	return icompare(str1, pos1, n, str2.begin() + pos2, str2.begin() + pos2 + n);
 | |
| }
 | |
| 
 | |
| 
 | |
| template <class S>
 | |
| int icompare(
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| 	const S& str,
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| 	typename S::size_type pos,
 | |
| 	typename S::size_type n,
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| 	const typename S::value_type* ptr)
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| {
 | |
| 	poco_check_ptr (ptr);
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| 	typename S::size_type sz = str.size();
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| 	if (pos > sz) pos = sz;
 | |
| 	if (pos + n > sz) n = sz - pos;
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| 	typename S::const_iterator it  = str.begin() + pos;
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| 	typename S::const_iterator end = str.begin() + pos + n;
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| 	while (it != end && *ptr)
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| 	{
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| 		typename S::value_type c1(static_cast<typename S::value_type>(Ascii::toLower(*it)));
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| 		typename S::value_type c2(static_cast<typename S::value_type>(Ascii::toLower(*ptr)));
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| 		if (c1 < c2)
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| 			return -1;
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| 		else if (c1 > c2)
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| 			return 1;
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| 		++it; ++ptr;
 | |
| 	}
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| 
 | |
| 	if (it == end)
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| 		return *ptr == 0 ? 0 : -1;
 | |
| 	else
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| 		return 1;
 | |
| }
 | |
| 
 | |
| 
 | |
| template <class S>
 | |
| int icompare(
 | |
| 	const S& str,
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| 	typename S::size_type pos,
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| 	const typename S::value_type* ptr)
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| {
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| 	return icompare(str, pos, str.size() - pos, ptr);
 | |
| }
 | |
| 
 | |
| 
 | |
| template <class S>
 | |
| int icompare(
 | |
| 	const S& str,
 | |
| 	const typename S::value_type* ptr)
 | |
| {
 | |
| 	return icompare(str, 0, str.size(), ptr);
 | |
| }
 | |
| 
 | |
| 
 | |
| #else
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| 
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| 
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| int Foundation_API 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);
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| int Foundation_API icompare(const std::string& str1, const std::string& str2);
 | |
| int Foundation_API icompare(const std::string& str1, std::string::size_type n1, const std::string& str2, std::string::size_type n2);
 | |
| int Foundation_API icompare(const std::string& str1, std::string::size_type n, const std::string& str2);
 | |
| int Foundation_API icompare(const std::string& str1, std::string::size_type pos, std::string::size_type n, const std::string& str2);
 | |
| int Foundation_API 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);
 | |
| int Foundation_API icompare(const std::string& str1, std::string::size_type pos1, std::string::size_type n, const std::string& str2, std::string::size_type pos2);
 | |
| int Foundation_API icompare(const std::string& str, std::string::size_type pos, std::string::size_type n, const std::string::value_type* ptr);
 | |
| int Foundation_API icompare(const std::string& str, std::string::size_type pos, const std::string::value_type* ptr);
 | |
| int Foundation_API icompare(const std::string& str, const std::string::value_type* ptr);
 | |
| 
 | |
| 
 | |
| #endif
 | |
| 
 | |
| 
 | |
| template <class S>
 | |
| S translate(const S& str, const S& from, const S& to)
 | |
| 	/// Returns a copy of str with all characters in
 | |
| 	/// from replaced by the corresponding (by position)
 | |
| 	/// characters in to. If there is no corresponding
 | |
| 	/// character in to, the character is removed from
 | |
| 	/// the copy.
 | |
| {
 | |
| 	S result;
 | |
| 	result.reserve(str.size());
 | |
| 	typename S::const_iterator it  = str.begin();
 | |
| 	typename S::const_iterator end = str.end();
 | |
| 	typename S::size_type toSize = to.size();
 | |
| 	while (it != end)
 | |
| 	{
 | |
| 		typename S::size_type pos = from.find(*it);
 | |
| 		if (pos == S::npos)
 | |
| 		{
 | |
| 			result += *it;
 | |
| 		}
 | |
| 		else
 | |
| 		{
 | |
| 			if (pos < toSize) result += to[pos];
 | |
| 		}
 | |
| 		++it;
 | |
| 	}
 | |
| 	return result;
 | |
| }
 | |
| 
 | |
| 
 | |
| template <class S>
 | |
| S translate(const S& str, const typename S::value_type* from, const typename S::value_type* to)
 | |
| {
 | |
| 	poco_check_ptr (from);
 | |
| 	poco_check_ptr (to);
 | |
| 	return translate(str, S(from), S(to));
 | |
| }
 | |
| 
 | |
| 
 | |
| template <class S>
 | |
| S& translateInPlace(S& str, const S& from, const S& to)
 | |
| 	/// Replaces in str all occurrences of characters in from
 | |
| 	/// with the corresponding (by position) characters in to.
 | |
| 	/// If there is no corresponding character, the character
 | |
| 	/// is removed.
 | |
| {
 | |
| 	str = translate(str, from, to);
 | |
| 	return str;
 | |
| }
 | |
| 
 | |
| 
 | |
| template <class S>
 | |
| S translateInPlace(S& str, const typename S::value_type* from, const typename S::value_type* to)
 | |
| {
 | |
| 	poco_check_ptr (from);
 | |
| 	poco_check_ptr (to);
 | |
| 	str = translate(str, S(from), S(to));
 | |
| #if defined(__SUNPRO_CC)
 | |
| // Fix around the RVO bug in SunStudio 12.4
 | |
| 	S ret(str);
 | |
| 	return ret;
 | |
| #else
 | |
| 	return str;
 | |
| #endif
 | |
| }
 | |
| 
 | |
| 
 | |
| #if !defined(POCO_NO_TEMPLATE_ICOMPARE)
 | |
| 
 | |
| 
 | |
| template <class S>
 | |
| S& replaceInPlace(S& str, const S& from, const S& to, typename S::size_type start = 0)
 | |
| {
 | |
| 	poco_assert (from.size() > 0);
 | |
| 
 | |
| 	S result;
 | |
| 	typename S::size_type pos = 0;
 | |
| 	result.append(str, 0, start);
 | |
| 	do
 | |
| 	{
 | |
| 		pos = str.find(from, start);
 | |
| 		if (pos != S::npos)
 | |
| 		{
 | |
| 			result.append(str, start, pos - start);
 | |
| 			result.append(to);
 | |
| 			start = pos + from.length();
 | |
| 		}
 | |
| 		else result.append(str, start, str.size() - start);
 | |
| 	}
 | |
| 	while (pos != S::npos);
 | |
| 	str.swap(result);
 | |
| 	return str;
 | |
| }
 | |
| 
 | |
| 
 | |
| template <class S>
 | |
| S& replaceInPlace(S& str, const typename S::value_type* from, const typename S::value_type* to, typename S::size_type start = 0)
 | |
| {
 | |
| 	poco_assert (*from);
 | |
| 
 | |
| 	S result;
 | |
| 	typename S::size_type pos = 0;
 | |
| 	typename S::size_type fromLen = std::strlen(from);
 | |
| 	result.append(str, 0, start);
 | |
| 	do
 | |
| 	{
 | |
| 		pos = str.find(from, start);
 | |
| 		if (pos != S::npos)
 | |
| 		{
 | |
| 			result.append(str, start, pos - start);
 | |
| 			result.append(to);
 | |
| 			start = pos + fromLen;
 | |
| 		}
 | |
| 		else result.append(str, start, str.size() - start);
 | |
| 	}
 | |
| 	while (pos != S::npos);
 | |
| 	str.swap(result);
 | |
| 	return str;
 | |
| }
 | |
| 
 | |
| 
 | |
| template <class S>
 | |
| S& replaceInPlace(S& str, const typename S::value_type from, const typename S::value_type to = 0, typename S::size_type start = 0)
 | |
| {
 | |
| 	if (from == to) return str;
 | |
| 
 | |
| 	typename S::size_type pos = 0;
 | |
| 	do
 | |
| 	{
 | |
| 		pos = str.find(from, start);
 | |
| 		if (pos != S::npos)
 | |
| 		{
 | |
| 			if (to) str[pos] = to;
 | |
| 			else str.erase(pos, 1);
 | |
| 		}
 | |
| 	} while (pos != S::npos);
 | |
| 
 | |
| 	return str;
 | |
| }
 | |
| 
 | |
| 
 | |
| template <class S>
 | |
| S& removeInPlace(S& str, const typename S::value_type ch, typename S::size_type start = 0)
 | |
| {
 | |
| 	return replaceInPlace(str, ch, 0, start);
 | |
| }
 | |
| 
 | |
| 
 | |
| template <class S>
 | |
| S replace(const S& str, const S& from, const S& to, typename S::size_type start = 0)
 | |
| 	/// Replace all occurrences of from (which must not be the empty string)
 | |
| 	/// in str with to, starting at position start.
 | |
| {
 | |
| 	S result(str);
 | |
| 	replaceInPlace(result, from, to, start);
 | |
| 	return result;
 | |
| }
 | |
| 
 | |
| 
 | |
| template <class S>
 | |
| S replace(const S& str, const typename S::value_type* from, const typename S::value_type* to, typename S::size_type start = 0)
 | |
| {
 | |
| 	S result(str);
 | |
| 	replaceInPlace(result, from, to, start);
 | |
| 	return result;
 | |
| }
 | |
| 
 | |
| 
 | |
| template <class S>
 | |
| S replace(const S& str, const typename S::value_type from, const typename S::value_type to = 0, typename S::size_type start = 0)
 | |
| {
 | |
| 	S result(str);
 | |
| 	replaceInPlace(result, from, to, start);
 | |
| 	return result;
 | |
| }
 | |
| 
 | |
| 
 | |
| template <class S>
 | |
| S remove(const S& str, const typename S::value_type ch, typename S::size_type start = 0)
 | |
| {
 | |
| 	S result(str);
 | |
| 	replaceInPlace(result, ch, 0, start);
 | |
| 	return result;
 | |
| }
 | |
| 
 | |
| 
 | |
| #else
 | |
| 
 | |
| 
 | |
| Foundation_API std::string replace(const std::string& str, const std::string& from, const std::string& to, std::string::size_type start = 0);
 | |
| Foundation_API std::string replace(const std::string& str, const std::string::value_type* from, const std::string::value_type* to, std::string::size_type start = 0);
 | |
| Foundation_API std::string replace(const std::string& str, const std::string::value_type from, const std::string::value_type to = 0, std::string::size_type start = 0);
 | |
| Foundation_API std::string remove(const std::string& str, const std::string::value_type ch, std::string::size_type start = 0);
 | |
| Foundation_API std::string& replaceInPlace(std::string& str, const std::string& from, const std::string& to, std::string::size_type start = 0);
 | |
| Foundation_API std::string& replaceInPlace(std::string& str, const std::string::value_type* from, const std::string::value_type* to, std::string::size_type start = 0);
 | |
| Foundation_API std::string& replaceInPlace(std::string& str, const std::string::value_type from, const std::string::value_type to = 0, std::string::size_type start = 0);
 | |
| Foundation_API std::string& removeInPlace(std::string& str, const std::string::value_type ch, std::string::size_type start = 0);
 | |
| 
 | |
| 
 | |
| #endif
 | |
| 
 | |
| 
 | |
| template <class S>
 | |
| S cat(const S& s1, const S& s2)
 | |
| 	/// Concatenates two strings.
 | |
| {
 | |
| 	S result = s1;
 | |
| 	result.reserve(s1.size() + s2.size());
 | |
| 	result.append(s2);
 | |
| 	return result;
 | |
| }
 | |
| 
 | |
| 
 | |
| template <class S>
 | |
| S cat(const S& s1, const S& s2, const S& s3)
 | |
| 	/// Concatenates three strings.
 | |
| {
 | |
| 	S result = s1;
 | |
| 	result.reserve(s1.size() + s2.size() + s3.size());
 | |
| 	result.append(s2);
 | |
| 	result.append(s3);
 | |
| 	return result;
 | |
| }
 | |
| 
 | |
| 
 | |
| template <class S>
 | |
| S cat(const S& s1, const S& s2, const S& s3, const S& s4)
 | |
| 	/// Concatenates four strings.
 | |
| {
 | |
| 	S result = s1;
 | |
| 	result.reserve(s1.size() + s2.size() + s3.size() + s4.size());
 | |
| 	result.append(s2);
 | |
| 	result.append(s3);
 | |
| 	result.append(s4);
 | |
| 	return result;
 | |
| }
 | |
| 
 | |
| 
 | |
| template <class S>
 | |
| S cat(const S& s1, const S& s2, const S& s3, const S& s4, const S& s5)
 | |
| 	/// Concatenates five strings.
 | |
| {
 | |
| 	S result = s1;
 | |
| 	result.reserve(s1.size() + s2.size() + s3.size() + s4.size() + s5.size());
 | |
| 	result.append(s2);
 | |
| 	result.append(s3);
 | |
| 	result.append(s4);
 | |
| 	result.append(s5);
 | |
| 	return result;
 | |
| }
 | |
| 
 | |
| 
 | |
| template <class S>
 | |
| S cat(const S& s1, const S& s2, const S& s3, const S& s4, const S& s5, const S& s6)
 | |
| 	/// Concatenates six strings.
 | |
| {
 | |
| 	S result = s1;
 | |
| 	result.reserve(s1.size() + s2.size() + s3.size() + s4.size() + s5.size() + s6.size());
 | |
| 	result.append(s2);
 | |
| 	result.append(s3);
 | |
| 	result.append(s4);
 | |
| 	result.append(s5);
 | |
| 	result.append(s6);
 | |
| 	return result;
 | |
| }
 | |
| 
 | |
| 
 | |
| template <class S, class It>
 | |
| S cat(const S& delim, const It& begin, const It& end)
 | |
| 	/// Concatenates a sequence of strings, delimited
 | |
| 	/// by the string given in delim.
 | |
| {
 | |
| 	S result;
 | |
| 	for (It it = begin; it != end; ++it)
 | |
| 	{
 | |
| 		if (!result.empty()) result.append(delim);
 | |
| 		result += *it;
 | |
| 	}
 | |
| 	return result;
 | |
| }
 | |
| 
 | |
| 
 | |
| template <class S>
 | |
| bool startsWith(const S& str, const S& prefix)
 | |
| 	/// Tests whether the string starts with the given prefix.
 | |
| {
 | |
| 	return str.size() >= prefix.size() && equal(prefix.begin(), prefix.end(), str.begin());
 | |
| }
 | |
| 
 | |
| 
 | |
| template <class S>
 | |
| bool endsWith(const S& str, const S& suffix)
 | |
| 	/// Tests whether the string ends with the given suffix.
 | |
| {
 | |
| 	return str.size() >= suffix.size() && equal(suffix.rbegin(), suffix.rend(), str.rbegin());
 | |
| }
 | |
| 
 | |
| 
 | |
| //
 | |
| // case-insensitive string equality
 | |
| //
 | |
| 
 | |
| 
 | |
| template <typename charT>
 | |
| struct i_char_traits : public std::char_traits<charT>
 | |
| {
 | |
| 	inline static bool eq(charT c1, charT c2)
 | |
| 	{
 | |
| 		return Ascii::toLower(c1) == Ascii::toLower(c2);
 | |
| 	}
 | |
| 
 | |
| 	inline static bool ne(charT c1, charT c2)
 | |
| 	{
 | |
| 		return !eq(c1, c2);
 | |
| 	}
 | |
| 
 | |
| 	inline static bool lt(charT c1, charT c2)
 | |
| 	{
 | |
| 		return Ascii::toLower(c1) < Ascii::toLower(c2);
 | |
| 	}
 | |
| 
 | |
| 	static int compare(const charT* s1, const charT* s2, std::size_t n)
 | |
| 	{
 | |
| 		for (int i = 0; i < n && s1 && s2; ++i, ++s1, ++s2)
 | |
| 		{
 | |
| 			if (Ascii::toLower(*s1) == Ascii::toLower(*s2)) continue;
 | |
| 			else if (Ascii::toLower(*s1) < Ascii::toLower(*s2)) return -1;
 | |
| 			else return 1;
 | |
| 		}
 | |
| 
 | |
| 		return 0;
 | |
| 	}
 | |
| 
 | |
| 	static const charT* find(const charT* s, int n, charT a)
 | |
| 	{
 | |
| 		while(n-- > 0 && Ascii::toLower(*s) != Ascii::toLower(a)) { ++s; }
 | |
| 		return s;
 | |
| 	}
 | |
| };
 | |
| 
 | |
| 
 | |
| typedef std::basic_string<char, i_char_traits<char>> istring;
 | |
| 	/// Case-insensitive std::string counterpart.
 | |
| 
 | |
| 
 | |
| template<typename T>
 | |
| std::size_t isubstr(const T& str, const T& sought)
 | |
| 	/// Case-insensitive substring; searches for a substring
 | |
| 	/// without regards to case.
 | |
| {
 | |
| 	typename T::const_iterator it = std::search(str.begin(), str.end(),
 | |
| 		sought.begin(), sought.end(),
 | |
| 		i_char_traits<typename T::value_type>::eq);
 | |
| 
 | |
| 	if (it != str.end()) return it - str.begin();
 | |
| 	else return static_cast<std::size_t>(T::npos);
 | |
| }
 | |
| 
 | |
| 
 | |
| struct CILess
 | |
| 	/// Case-insensitive less-than functor; useful for standard maps
 | |
| 	/// and sets with std::strings keys and case-insensitive ordering
 | |
| 	/// requirement.
 | |
| {
 | |
| 	inline bool operator() (const std::string& s1, const std::string& s2) const
 | |
| 	{
 | |
| 		return icompare(s1, s2) < 0;
 | |
| 	}
 | |
| };
 | |
| 
 | |
| 
 | |
| } // namespace Poco
 | |
| 
 | |
| 
 | |
| #endif // Foundation_String_INCLUDED
 | 
