linphone-iphone/src/utils/utils.cpp
2018-04-27 08:53:34 +02:00

253 lines
6.9 KiB
C++

/*
* utils.cpp
* Copyright (C) 2010-2018 Belledonne Communications SARL
*
* 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 Street, Fifth Floor, Boston, MA 02110-1301, USA.
*/
#include <algorithm>
#include <cstdlib>
#include <list>
#include <sstream>
#include <bctoolbox/port.h>
#include <bctoolbox/charconv.h>
#include "linphone/utils/utils.h"
#include "logger/logger.h"
#include "private.h"
// =============================================================================
using namespace std;
LINPHONE_BEGIN_NAMESPACE
// -----------------------------------------------------------------------------
bool Utils::iequals (const string &a, const string &b) {
size_t size = a.size();
if (b.size() != size)
return false;
for (size_t i = 0; i < size; ++i) {
if (tolower(a[i]) != tolower(b[i]))
return false;
}
return true;
}
// -----------------------------------------------------------------------------
vector<string> Utils::split (const string &str, const string &delimiter) {
vector<string> out;
size_t pos = 0, oldPos = 0;
for (; (pos = str.find(delimiter, pos)) != string::npos; oldPos = pos + 1, pos = oldPos)
out.push_back(str.substr(oldPos, pos - oldPos));
out.push_back(str.substr(oldPos));
return out;
}
// -----------------------------------------------------------------------------
#ifndef __ANDROID__
#define TO_STRING_IMPL(TYPE) \
string Utils::toString (TYPE val) { \
return to_string(val); \
}
#else
#define TO_STRING_IMPL(TYPE) \
string Utils::toString (TYPE val) { \
ostringstream os; \
os << val; \
return os.str(); \
}
#endif // ifndef __ANDROID__
TO_STRING_IMPL(int)
TO_STRING_IMPL(long)
TO_STRING_IMPL(long long)
TO_STRING_IMPL(unsigned)
TO_STRING_IMPL(unsigned long)
TO_STRING_IMPL(unsigned long long)
TO_STRING_IMPL(float)
TO_STRING_IMPL(double)
TO_STRING_IMPL(long double)
#undef TO_STRING_IMPL
string Utils::toString (const void *val) {
ostringstream ss;
ss << val;
return ss.str();
}
// -----------------------------------------------------------------------------
#define STRING_TO_NUMBER_IMPL(TYPE, SUFFIX) \
TYPE Utils::sto ## SUFFIX (const string &str, size_t *idx, int base) { \
return sto ## SUFFIX(str.c_str(), idx, base); \
} \
TYPE Utils::sto ## SUFFIX (const char *str, size_t *idx, int base) { \
char *p; \
TYPE v = strto ## SUFFIX(str, &p, base); \
if (idx) \
*idx = static_cast<size_t>(p - str); \
return v; \
} \
#define STRING_TO_NUMBER_IMPL_BASE_LESS(TYPE, SUFFIX) \
TYPE Utils::sto ## SUFFIX(const string &str, size_t * idx) { \
return sto ## SUFFIX(str.c_str(), idx); \
} \
TYPE Utils::sto ## SUFFIX(const char *str, size_t * idx) { \
char *p; \
TYPE v = strto ## SUFFIX(str, &p); \
if (idx) \
*idx = static_cast<size_t>(p - str); \
return v; \
} \
#define strtoi(STR, IDX, BASE) static_cast<int>(strtol(STR, IDX, BASE))
STRING_TO_NUMBER_IMPL(int, i)
#undef strtoi
STRING_TO_NUMBER_IMPL(long long, ll)
STRING_TO_NUMBER_IMPL(unsigned long long, ull)
STRING_TO_NUMBER_IMPL_BASE_LESS(double, d)
STRING_TO_NUMBER_IMPL_BASE_LESS(float, f)
#undef STRING_TO_NUMBER_IMPL
#undef STRING_TO_NUMBER_IMPL_BASE_LESS
bool Utils::stob (const string &str) {
const string lowerStr = stringToLower(str);
return !lowerStr.empty() && (lowerStr == "true" || lowerStr == "1");
}
// -----------------------------------------------------------------------------
string Utils::stringToLower (const string &str) {
string result(str.size(), ' ');
transform(str.cbegin(), str.cend(), result.begin(), ::tolower);
return result;
}
// -----------------------------------------------------------------------------
char *Utils::utf8ToChar (uint32_t ic) {
char *result = new char[5];
int size = 0;
if (ic < 0x80) {
result[0] = static_cast<char>(ic);
size = 1;
} else if (ic < 0x800) {
result[1] = static_cast<char>(0x80 + ((ic & 0x3F)));
result[0] = static_cast<char>(0xC0 + ((ic >> 6) & 0x1F));
size = 2;
} else if (ic < 0x100000) {
result[2] = static_cast<char>(0x80 + (ic & 0x3F));
result[1] = static_cast<char>(0x80 + ((ic >> 6) & 0x3F));
result[0] = static_cast<char>(0xE0 + ((ic >> 12) & 0xF));
size = 3;
} else if (ic < 0x110000) {
result[3] = static_cast<char>(0x80 + (ic & 0x3F));
result[2] = static_cast<char>(0x80 + ((ic >> 6) & 0x3F));
result[1] = static_cast<char>(0x80 + ((ic >> 12) & 0x3F));
result[0] = static_cast<char>(0xF0 + ((ic >> 18) & 0x7));
size = 4;
}
result[size] = '\0';
return result;
}
string Utils::trim (const string &str) {
auto itFront = find_if_not(str.begin(), str.end(), [] (int c) { return isspace(c); });
auto itBack = find_if_not(str.rbegin(), str.rend(), [] (int c) { return isspace(c); }).base();
return (itBack <= itFront ? string() : string(itFront, itBack));
}
// -----------------------------------------------------------------------------
tm Utils::getTimeTAsTm (time_t time) {
#ifdef _WIN32
return *gmtime(&time);
#else
tm result;
return *gmtime_r(&time, &result);
#endif
}
time_t Utils::getTmAsTimeT (const tm &time) {
time_t result;
#if defined(LINPHONE_WINDOWS_UNIVERSAL) || defined(LINPHONE_MSC_VER_GREATER_19)
long adjust_timezone;
#else
time_t adjust_timezone;
#endif
#if TARGET_IPHONE_SIMULATOR
result = timegm(&const_cast<tm &>(time));
adjust_timezone = 0;
#else
result = mktime(&const_cast<tm &>(time));
#if defined(LINPHONE_WINDOWS_UNIVERSAL) || defined(LINPHONE_MSC_VER_GREATER_19)
_get_timezone(&adjust_timezone);
#else
adjust_timezone = timezone;
#endif
#endif
if (result == (time_t)-1) {
lError() << "mktime failed: " << strerror(errno);
return (time_t)-1;
}
return result - (time_t)adjust_timezone;
}
// -----------------------------------------------------------------------------
// TODO: Improve perf!!! Avoid c <--> cpp string conversions.
string Utils::localeToUtf8 (const string &str) {
char *cStr = bctbx_locale_to_utf8(str.c_str());
string utf8Str = cStringToCppString(cStr);
bctbx_free(cStr);
return utf8Str;
}
string Utils::utf8ToLocale (const string &str) {
char *cStr = bctbx_utf8_to_locale(str.c_str());
string localeStr = cStringToCppString(cStr);
bctbx_free(cStr);
return localeStr;
}
string Utils::convertString (const string &str, const string &from, const string &to) {
char *cStr = bctbx_convert_from_to(str.c_str(), from.c_str(), to.c_str());
string convertedStr = cStringToCppString(cStr);
bctbx_free(cStr);
return convertedStr;
}
LINPHONE_END_NAMESPACE