104 lines
2.2 KiB
C++
104 lines
2.2 KiB
C++
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/************************************
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* file enc : utf8
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* author : wuyanyi09@gmail.com
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************************************/
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#ifndef LIMONP_CONFIG_H
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#define LIMONP_CONFIG_H
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#include <map>
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#include <fstream>
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#include <iostream>
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#include <assert.h>
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#include "StringUtil.hpp"
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namespace limonp {
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using namespace std;
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class Config {
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public:
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explicit Config(const string& filePath) {
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LoadFile(filePath);
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}
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operator bool () {
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return !map_.empty();
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}
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string Get(const string& key, const string& defaultvalue) const {
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map<string, string>::const_iterator it = map_.find(key);
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if(map_.end() != it) {
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return it->second;
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}
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return defaultvalue;
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}
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int Get(const string& key, int defaultvalue) const {
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string str = Get(key, "");
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if("" == str) {
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return defaultvalue;
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}
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return atoi(str.c_str());
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}
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const char* operator [] (const char* key) const {
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if(NULL == key) {
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return NULL;
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}
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map<string, string>::const_iterator it = map_.find(key);
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if(map_.end() != it) {
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return it->second.c_str();
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}
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return NULL;
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}
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string GetConfigInfo() const {
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string res;
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res << *this;
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return res;
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}
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private:
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void LoadFile(const string& filePath) {
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ifstream ifs(filePath.c_str());
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assert(ifs);
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string line;
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vector<string> vecBuf;
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size_t lineno = 0;
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while(getline(ifs, line)) {
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lineno ++;
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Trim(line);
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if(line.empty() || StartsWith(line, "#")) {
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continue;
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}
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vecBuf.clear();
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Split(line, vecBuf, "=");
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if(2 != vecBuf.size()) {
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fprintf(stderr, "line[%s] illegal.\n", line.c_str());
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assert(false);
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continue;
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}
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string& key = vecBuf[0];
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string& value = vecBuf[1];
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Trim(key);
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Trim(value);
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if(!map_.insert(make_pair(key, value)).second) {
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fprintf(stderr, "key[%s] already exits.\n", key.c_str());
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assert(false);
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continue;
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}
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}
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ifs.close();
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}
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friend ostream& operator << (ostream& os, const Config& config);
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map<string, string> map_;
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}; // class Config
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inline ostream& operator << (ostream& os, const Config& config) {
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return os << config.map_;
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}
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} // namespace limonp
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#endif // LIMONP_CONFIG_H
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