519 lines
13 KiB
C++
519 lines
13 KiB
C++
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#include "precomp.hpp"
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#include <iostream>
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namespace cv
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{
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struct CommandLineParserParams
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{
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public:
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string help_message;
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string def_value;
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vector<string> keys;
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int number;
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};
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struct CommandLineParser::Impl
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{
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bool error;
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string error_message;
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string about_message;
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string path_to_app;
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string app_name;
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vector<CommandLineParserParams> data;
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vector<string> split_range_string(const string& str, char fs, char ss) const;
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vector<string> split_string(const string& str, char symbol = ' ', bool create_empty_item = false) const;
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string cat_string(const string& str) const;
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void apply_params(const string& key, const string& value);
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void apply_params(int i, string value);
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void sort_params();
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int refcount;
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};
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static string get_type_name(int type)
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{
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if( type == Param::INT )
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return "int";
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if( type == Param::UNSIGNED_INT )
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return "unsigned";
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if( type == Param::UINT64 )
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return "unsigned long long";
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if( type == Param::FLOAT )
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return "float";
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if( type == Param::REAL )
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return "double";
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if( type == Param::STRING )
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return "string";
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return "unknown";
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}
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static void from_str(const string& str, int type, void* dst)
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{
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std::stringstream ss(str);
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if( type == Param::INT )
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ss >> *(int*)dst;
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else if( type == Param::UNSIGNED_INT )
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ss >> *(unsigned*)dst;
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else if( type == Param::UINT64 )
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ss >> *(uint64*)dst;
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else if( type == Param::FLOAT )
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ss >> *(float*)dst;
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else if( type == Param::REAL )
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ss >> *(double*)dst;
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else if( type == Param::STRING )
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*(string*)dst = str;
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else
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throw cv::Exception(CV_StsBadArg, "unknown/unsupported parameter type", "", __FILE__, __LINE__);
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if (ss.fail())
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{
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string err_msg = "can not convert: [" + str +
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+ "] to [" + get_type_name(type) + "]";
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throw cv::Exception(CV_StsBadArg, err_msg, "", __FILE__, __LINE__);
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}
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}
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void CommandLineParser::getByName(const string& name, bool space_delete, int type, void* dst) const
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{
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try
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{
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for (size_t i = 0; i < impl->data.size(); i++)
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{
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for (size_t j = 0; j < impl->data[i].keys.size(); j++)
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{
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if (name.compare(impl->data[i].keys[j]) == 0)
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{
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string v = impl->data[i].def_value;
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if (space_delete)
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v = impl->cat_string(v);
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from_str(v, type, dst);
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return;
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}
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}
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}
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impl->error = true;
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impl->error_message += "Unknown parametes " + name + "\n";
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}
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catch (std::exception& e)
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{
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impl->error = true;
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impl->error_message += "Exception: " + string(e.what()) + "\n";
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}
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}
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void CommandLineParser::getByIndex(int index, bool space_delete, int type, void* dst) const
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{
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try
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{
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for (size_t i = 0; i < impl->data.size(); i++)
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{
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if (impl->data[i].number == index)
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{
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string v = impl->data[i].def_value;
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if (space_delete == true) v = impl->cat_string(v);
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from_str(v, type, dst);
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return;
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}
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}
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impl->error = true;
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impl->error_message += "Unknown parametes #" + format("%d", index) + "\n";
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}
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catch(std::exception & e)
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{
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impl->error = true;
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impl->error_message += "Exception: " + string(e.what()) + "\n";
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}
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}
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static bool cmp_params(const CommandLineParserParams & p1, const CommandLineParserParams & p2)
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{
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if (p1.number > p2.number)
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return false;
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if (p1.number == -1 && p2.number == -1)
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{
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if (p1.keys[0].compare(p2.keys[0]) > 0)
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{
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return false;
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}
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}
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return true;
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}
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CommandLineParser::CommandLineParser(int argc, const char* const argv[], const string& keys)
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{
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impl = new Impl;
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impl->refcount = 1;
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// path to application
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size_t pos_s = string(argv[0]).find_last_of("/\\");
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if (pos_s == string::npos)
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{
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impl->path_to_app = "";
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impl->app_name = string(argv[0]);
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}
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else
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{
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impl->path_to_app = string(argv[0]).substr(0, pos_s);
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impl->app_name = string(argv[0]).substr(pos_s + 1, string(argv[0]).length() - pos_s);
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}
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impl->error = false;
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impl->error_message = "";
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// parse keys
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vector<string> k = impl->split_range_string(keys, '{', '}');
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int jj = 0;
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for (size_t i = 0; i < k.size(); i++)
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{
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vector<string> l = impl->split_string(k[i], '|', true);
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CommandLineParserParams p;
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p.keys = impl->split_string(l[0]);
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p.def_value = l[1];
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p.help_message = impl->cat_string(l[2]);
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p.number = -1;
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if (p.keys.size() <= 0)
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{
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impl->error = true;
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impl->error_message = "Field KEYS could not be empty\n";
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}
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else
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{
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if (p.keys[0][0] == '@')
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{
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p.number = jj;
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jj++;
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}
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impl->data.push_back(p);
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}
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}
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// parse argv
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jj = 0;
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for (int i = 1; i < argc; i++)
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{
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string s = string(argv[i]);
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if (s.find('=') != string::npos && s.find('=') < s.length())
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{
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vector<string> k_v = impl->split_string(s, '=', true);
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for (int h = 0; h < 2; h++)
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{
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if (k_v[0][0] == '-')
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k_v[0] = k_v[0].substr(1, k_v[0].length() -1);
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}
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impl->apply_params(k_v[0], k_v[1]);
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}
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else if (s.length() > 1 && s[0] == '-')
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{
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for (int h = 0; h < 2; h++)
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{
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if (s[0] == '-')
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s = s.substr(1, s.length() - 1);
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}
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impl->apply_params(s, "true");
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}
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else if (s[0] != '-')
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{
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impl->apply_params(jj, s);
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jj++;
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}
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}
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impl->sort_params();
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}
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CommandLineParser::CommandLineParser(const CommandLineParser& parser)
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{
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impl = parser.impl;
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CV_XADD(&impl->refcount, 1);
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}
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CommandLineParser& CommandLineParser::operator = (const CommandLineParser& parser)
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{
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if( this != &parser )
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{
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if(CV_XADD(&impl->refcount, -1) == 1)
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delete impl;
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impl = parser.impl;
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CV_XADD(&impl->refcount, 1);
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}
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return *this;
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}
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void CommandLineParser::about(const string& message)
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{
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impl->about_message = message;
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}
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void CommandLineParser::Impl::apply_params(const string& key, const string& value)
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{
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for (size_t i = 0; i < data.size(); i++)
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{
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for (size_t k = 0; k < data[i].keys.size(); k++)
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{
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if (key.compare(data[i].keys[k]) == 0)
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{
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data[i].def_value = value;
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break;
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}
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}
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}
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}
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void CommandLineParser::Impl::apply_params(int i, string value)
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{
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for (size_t j = 0; j < data.size(); j++)
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{
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if (data[j].number == i)
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{
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data[j].def_value = value;
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break;
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}
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}
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}
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void CommandLineParser::Impl::sort_params()
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{
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for (size_t i = 0; i < data.size(); i++)
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{
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sort(data[i].keys.begin(), data[i].keys.end());
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}
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std::sort (data.begin(), data.end(), cmp_params);
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}
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string CommandLineParser::Impl::cat_string(const string& str) const
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{
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int left = 0, right = (int)str.length();
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while( left <= right && str[left] == ' ' )
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left++;
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while( right > left && str[right-1] == ' ' )
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right--;
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return left >= right ? string("") : str.substr(left, right-left);
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}
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string CommandLineParser::getPathToApplication() const
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{
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return impl->path_to_app;
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}
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bool CommandLineParser::has(const string& name) const
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{
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for (size_t i = 0; i < impl->data.size(); i++)
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{
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for (size_t j = 0; j < impl->data[i].keys.size(); j++)
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{
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if (name.compare(impl->data[i].keys[j]) == 0 && string("true").compare(impl->data[i].def_value) == 0)
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{
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return true;
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}
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}
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}
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return false;
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}
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bool CommandLineParser::check() const
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{
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return impl->error == false;
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}
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void CommandLineParser::printErrors() const
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{
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if (impl->error)
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{
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std::cout << std::endl << "ERRORS:" << std::endl << impl->error_message << std::endl;
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}
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}
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void CommandLineParser::printMessage() const
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{
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if (impl->about_message != "")
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std::cout << impl->about_message << std::endl;
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std::cout << "Usage: " << impl->app_name << " [params] ";
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for (size_t i = 0; i < impl->data.size(); i++)
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{
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if (impl->data[i].number > -1)
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{
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string name = impl->data[i].keys[0].substr(1, impl->data[i].keys[0].length() - 1);
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std::cout << name << " ";
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}
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}
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std::cout << std::endl << std::endl;
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for (size_t i = 0; i < impl->data.size(); i++)
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{
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if (impl->data[i].number == -1)
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{
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std::cout << "\t";
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for (size_t j = 0; j < impl->data[i].keys.size(); j++)
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{
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string k = impl->data[i].keys[j];
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if (k.length() > 1)
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{
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std::cout << "--";
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}
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else
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{
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std::cout << "-";
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}
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std::cout << k;
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if (j != impl->data[i].keys.size() - 1)
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{
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std::cout << ", ";
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}
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}
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string dv = impl->cat_string(impl->data[i].def_value);
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if (dv.compare("") != 0)
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{
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std::cout << " (value:" << dv << ")";
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}
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std::cout << std::endl << "\t\t" << impl->data[i].help_message << std::endl;
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}
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}
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std::cout << std::endl;
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for (size_t i = 0; i < impl->data.size(); i++)
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{
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if (impl->data[i].number != -1)
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{
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std::cout << "\t";
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string k = impl->data[i].keys[0];
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k = k.substr(1, k.length() - 1);
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std::cout << k;
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string dv = impl->cat_string(impl->data[i].def_value);
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if (dv.compare("") != 0)
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{
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std::cout << " (value:" << dv << ")";
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}
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std::cout << std::endl << "\t\t" << impl->data[i].help_message << std::endl;
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}
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}
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}
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vector<string> CommandLineParser::Impl::split_range_string(const string& _str, char fs, char ss) const
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{
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string str = _str;
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vector<string> vec;
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string word = "";
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bool begin = false;
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while (!str.empty())
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{
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if (str[0] == fs)
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{
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if (begin == true)
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{
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throw cv::Exception(CV_StsParseError,
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string("error in split_range_string(")
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+ str
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+ string(", ")
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+ string(1, fs)
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+ string(", ")
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+ string(1, ss)
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+ string(")"),
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"", __FILE__, __LINE__
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);
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}
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begin = true;
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word = "";
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str = str.substr(1, str.length() - 1);
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}
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if (str[0] == ss)
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{
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if (begin == false)
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{
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throw cv::Exception(CV_StsParseError,
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string("error in split_range_string(")
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+ str
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+ string(", ")
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+ string(1, fs)
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+ string(", ")
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+ string(1, ss)
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+ string(")"),
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"", __FILE__, __LINE__
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);
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}
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begin = false;
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vec.push_back(word);
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}
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if (begin == true)
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{
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word += str[0];
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}
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str = str.substr(1, str.length() - 1);
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}
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if (begin == true)
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{
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throw cv::Exception(CV_StsParseError,
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string("error in split_range_string(")
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+ str
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+ string(", ")
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+ string(1, fs)
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+ string(", ")
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+ string(1, ss)
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+ string(")"),
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"", __FILE__, __LINE__
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);
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}
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return vec;
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}
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vector<string> CommandLineParser::Impl::split_string(const string& _str, char symbol, bool create_empty_item) const
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{
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string str = _str;
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vector<string> vec;
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string word = "";
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while (!str.empty())
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{
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if (str[0] == symbol)
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{
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if (!word.empty() || create_empty_item)
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{
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vec.push_back(word);
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word = "";
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}
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}
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else
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{
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word += str[0];
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}
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str = str.substr(1, str.length() - 1);
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}
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if (word != "" || create_empty_item)
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{
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vec.push_back(word);
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}
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return vec;
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}
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}
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