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/*! @file stdcpp_utils.h
*
* @brief Implement some standard C++ routines using templates
*
* (C) Copyright 2018 GoPro Inc (http://gopro.com/).
*
* Licensed under either:
* - Apache License, Version 2.0, http://www.apache.org/licenses/LICENSE-2.0
* - MIT license, http://opensource.org/licenses/MIT
* at your option.
*
* 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.
*/
#ifndef STDCPP_UTILS_H
#define STDCPP_UTILS_H
#include <iostream>
#include <fstream>
#include <sstream>
#include <map>
#include <vector>
#include <algorithm>
#include <vector>
#include <functional>
#include <cctype>
#include <stdio.h>
#include <string.h>
std::string& ltrim(std::string& s) {
s.erase(s.begin(), std::find_if(s.begin(), s.end(),
std::ptr_fun<int, int>(std::isgraph)));
return s;
}
std::string& rtrim(std::string& s)
{
s.erase(std::find_if(s.rbegin(), s.rend(),
std::ptr_fun<int, int>(std::isgraph)).base(), s.end());
return s;
}
std::string& trim(std::string& s)
{
return ltrim(rtrim(s));
}
std::vector<std::string> tokenizer( const std::string& p_pcstStr, char delim ) {
std::vector<std::string> tokens;
std::stringstream mySstream( p_pcstStr );
std::string temp;
while( getline( mySstream, temp, delim ) ) {
tokens.push_back( temp );
}
return tokens;
}
template<class T>
bool find_key( std::map<std::string, std::string> hash, const std::string key, T& value )
{
std::map<std::string, std::string>::iterator it = hash.find( key.c_str() );
if(it != hash.end())
{
value = atoi( it->second.c_str() );
return true;
}
return false;
}
template<>
bool find_key<std::string>( std::map<std::string, std::string> hash, const std::string key, std::string& value )
{
std::map<std::string, std::string>::iterator it = hash.find( key.c_str() );
if(it != hash.end())
{
value = it->second;
return true;
}
return false;
}
template<class T>
bool find_key( std::map<std::string, std::string> hash, const std::string key, T& value_numerator, T& value_denominator )
{
std::map<std::string, std::string>::iterator it = hash.find( key.c_str() );
if(it != hash.end())
{
std::string fraction = it->second;
std::vector<std::string> tokens = tokenizer( fraction, '/' );
value_numerator = atoi( tokens[0].c_str() );
if( tokens.size() == 2 )
value_denominator = atoi( tokens[1].c_str() );
else
value_denominator = 1;
return true;
}
return false;
}
template<class T>
static T parse_field(const char *tuning_sring, const char *field_name, const char* format_specifier, T default_val, bool* found = NULL )
{
const char *foundStr = strstr(tuning_sring, field_name);
T ret_data;
if (foundStr)
{
sscanf(foundStr + strlen(field_name), format_specifier, &ret_data);
if(found)
*found = true;
return ret_data;
}
if(found)
*found = false;
return default_val;
}
#endif // STDCPP_UTILS_H
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