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move wstring related functions to wide_char file

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This commit is contained in:
Andrzej Rybczak
2012-09-08 18:42:59 +02:00
parent d5e2d315fd
commit 84326efc46
23 changed files with 204 additions and 151 deletions
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25
src/utility/string.cpp
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@@ -44,31 +44,6 @@ bool isInteger(const char *s, bool accept_signed)
return true;
}
std::string ToString(const std::wstring &ws)
{
std::string result;
char s[MB_CUR_MAX];
for (size_t i = 0; i < ws.length(); ++i)
{
int n = wcrtomb(s, ws[i], 0);
if (n > 0)
result.append(s, n);
}
return result;
}
std::wstring ToWString(const std::string &s)
{
std::wstring result;
wchar_t *ws = new wchar_t[s.length()];
const char *c_s = s.c_str();
int n = mbsrtowcs(ws, &c_s, s.length(), 0);
if (n > 0)
result.append(ws, n);
delete [] ws;
return result;
}
std::vector<std::string> split(const std::string &s, const std::string &delimiter)
{
if (delimiter.empty())

3
src/utility/string.h
View File

@@ -67,9 +67,6 @@ int stringToInt(const std::string &s);
long stringToLongInt(const std::string &s);
bool isInteger(const char *s, bool accept_signed);
std::string ToString(const std::wstring &ws);
std::wstring ToWString(const std::string &s);
std::vector<std::string> split(const std::string &s, const std::string &delimiter);
void replace(std::string &s, const std::string &from, const std::string &to);

105
src/utility/wide_string.cpp Normal file
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@@ -0,0 +1,105 @@
/***************************************************************************
* Copyright (C) 2008-2012 by Andrzej Rybczak *
* electricityispower@gmail.com *
* *
* This program is free software; you can redistribute it and/or modify *
* it under the terms of the GNU General Public License as published by *
* the Free Software Foundation; either version 2 of the License, or *
* (at your option) any later version. *
* *
* This program is distributed in the hope that it will be useful, *
* but WITHOUT ANY WARRANTY; without even the implied warranty of *
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
* GNU General Public License for more details. *
* *
* You should have received a copy of the GNU General Public License *
* along with this program; if not, write to the *
* Free Software Foundation, Inc., *
* 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA. *
***************************************************************************/
#include "utility/wide_string.h"
std::string ToString(const std::wstring &ws)
{
std::string result;
char s[MB_CUR_MAX];
for (size_t i = 0; i < ws.length(); ++i)
{
int n = wcrtomb(s, ws[i], 0);
if (n > 0)
result.append(s, n);
}
return result;
}
std::wstring ToWString(const std::string &s)
{
std::wstring result;
wchar_t *ws = new wchar_t[s.length()];
const char *c_s = s.c_str();
int n = mbsrtowcs(ws, &c_s, s.length(), 0);
if (n > 0)
result.append(ws, n);
delete [] ws;
return result;
}
size_t wideLength(const std::wstring &ws)
{
int len = wcswidth(ws.c_str(), -1);
if (len < 0)
return ws.length();
else
return len;
}
void wideCut(std::wstring &ws, size_t max_length)
{
size_t i = 0;
int remained_len = max_length;
for (; i < ws.length(); ++i)
{
remained_len -= wcwidth(ws[i]);
if (remained_len < 0)
{
ws.resize(i);
break;
}
}
}
std::wstring wideShorten(const std::wstring &ws, size_t max_length)
{
std::wstring result;
if (wideLength(ws) > max_length)
{
const size_t half_max = max_length/2 - 1;
size_t len = 0;
// get beginning of string
for (auto it = ws.begin(); it != ws.end(); ++it)
{
len += wcwidth(*it);
if (len > half_max)
break;
result += *it;
}
len = 0;
std::wstring end;
// get end of string in reverse order
for (auto it = ws.rbegin(); it != ws.rend(); ++it)
{
len += wcwidth(*it);
if (len > half_max)
break;
end += *it;
}
// apply end of string to its beginning
result += L"..";
result.append(end.rbegin(), end.rend());
}
else
result = ws;
return result;
}

34
src/utility/wide_string.h Normal file
View File

@@ -0,0 +1,34 @@
/***************************************************************************
* Copyright (C) 2008-2012 by Andrzej Rybczak *
* electricityispower@gmail.com *
* *
* This program is free software; you can redistribute it and/or modify *
* it under the terms of the GNU General Public License as published by *
* the Free Software Foundation; either version 2 of the License, or *
* (at your option) any later version. *
* *
* This program is distributed in the hope that it will be useful, *
* but WITHOUT ANY WARRANTY; without even the implied warranty of *
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
* GNU General Public License for more details. *
* *
* You should have received a copy of the GNU General Public License *
* along with this program; if not, write to the *
* Free Software Foundation, Inc., *
* 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA. *
***************************************************************************/
#ifndef _UTILITY_WIDE_STRING
#define _UTILITY_WIDE_STRING
#include <string>
std::string ToString(const std::wstring &ws);
std::wstring ToWString(const std::string &s);
size_t wideLength(const std::wstring &ws);
void wideCut(std::wstring &ws, size_t max_length);
std::wstring wideShorten(const std::wstring &ws, size_t max_length);
#endif // _UTILITY_WIDE_STRING