blender/intern/cycles/util/util_string.cpp

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/*
* Copyright 2011-2013 Blender Foundation
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#include <stdarg.h>
#include <stdio.h>
#include <boost/algorithm/string.hpp>
#include "util_foreach.h"
#include "util_string.h"
#ifdef _WIN32
#ifndef vsnprintf
#define vsnprintf _vsnprintf
#endif
#endif
CCL_NAMESPACE_BEGIN
string string_printf(const char *format, ...)
{
vector<char> str(128, 0);
while(1) {
va_list args;
int result;
va_start(args, format);
result = vsnprintf(&str[0], str.size(), format, args);
va_end(args);
if(result == -1) {
/* not enough space or formatting error */
if(str.size() > 65536) {
assert(0);
return string("");
}
str.resize(str.size()*2, 0);
continue;
}
else if(result >= (int)str.size()) {
/* not enough space */
str.resize(result + 1, 0);
continue;
}
return string(&str[0]);
}
}
bool string_iequals(const string& a, const string& b)
{
if(a.size() == b.size()) {
for(size_t i = 0; i < a.size(); i++)
if(toupper(a[i]) != toupper(b[i]))
return false;
return true;
}
return false;
}
void string_split(vector<string>& tokens, const string& str, const string& separators)
{
vector<string> split;
boost::split(split, str, boost::is_any_of(separators), boost::token_compress_on);
foreach(const string& token, split)
if(token != "")
tokens.push_back(token);
}
bool string_endswith(const string& s, const char *end)
{
size_t len = strlen(end);
if(len > s.size())
return 0;
else
return strncmp(s.c_str() + s.size() - len, end, len) == 0;
}
string string_strip(const string& s)
{
string result = s;
result.erase(0, result.find_first_not_of(' '));
result.erase(result.find_last_not_of(' ') + 1);
return result;
}
CCL_NAMESPACE_END