//author Naven 2003 for both Win32 and Unix os class MyProperties { public: MyProperties(); MyProperties(istream &is); MyProperties(const string &filename); void load(const string &filename); unsigned long size(); string filename(); string get(const string &name, const string &default_value); void remove(const string &name); void set(const string &name, const string &value); void add(const string &name, const string &value); string getName(const int &i); string getValue(const int &i); void save(); void save(string &filename); private: void init(istream &is); private: string _file; vector _vals, _elms; unsigned long _size; }; MyProperties::MyProperties() { _size = 0; } MyProperties::MyProperties(istream &is) { _size = 0; init(is); } MyProperties::MyProperties(const string &filename) { load(filename); } void MyProperties::load(const string &filename) { _elms.clear(); _vals.clear(); _size = 0; if(filename.empty()) return; ifstream is(filename.c_str()); _file = filename; init(is); } void MyProperties::init(istream &is) { if(!is) return; char ln[LINE_SIZE+1], *pval; _elms.clear(); _vals.clear(); _size = 0; while(is.getline(ln, LINE_SIZE)) { trimleft(ln); if(ln[0] != '#' && (pval = strchr(ln, '=')) != NULL) { pval[0] = 0; pval++; trimright(ln); trim(pval); if(ln[0] != 0 && pval[0] != 0) { _elms.push_back(ln); _vals.push_back(pval); _size ++; } } } } unsigned long MyProperties::size() { return _size; } string MyProperties::filename() { return _file; } string MyProperties::getName(const int &i) { if(i >=0 && i<_elms.size()) return _elms[i]; return ""; } string MyProperties::getValue(const int &i) { if(i >=0 && i<_vals.size()) return _vals[i]; return ""; } string MyProperties::get(const string &name, const string &default_value="") { if(name.empty()) return default_value; vector::const_iterator elm_iter = _elms.begin(), elm_end = _elms.end(); vector::const_iterator val_iter = _vals.begin(), val_end = _elms.end(); while(elm_iter != elm_end && val_iter != val_end) { if((*elm_iter) == name) return *val_iter; elm_iter ++; val_iter ++; } return default_value; } void MyProperties::remove(const string &name) { if(name.empty()) return; vector::iterator elm_iter = _elms.begin(), elm_end = _elms.end(); vector::iterator val_iter = _vals.begin(), val_end = _elms.end(); while(elm_iter != elm_end && val_iter != val_end) { if((*elm_iter) == name) { _elms.erase(elm_iter); _vals.erase(val_iter); _size --; } elm_iter ++; val_iter ++; } } void MyProperties::set(const string &name, const string &value) { if(name.empty()) return; vector::iterator elm_iter = _elms.begin(), elm_end = _elms.end(); vector::iterator val_iter = _vals.begin(), val_end = _elms.end(); while(elm_iter != elm_end && val_iter != val_end) { if((*elm_iter) == name) *val_iter = value; elm_iter ++; val_iter ++; } } void MyProperties::add(const string &name, const string &value) { if(name.empty()) return; _elms.push_back(name); _vals.push_back(value); _size ++; } void MyProperties::save(string &filename) { if(filename.empty()) return; ifstream is(filename.c_str()); if(!is) return; char ln[LINE_SIZE+1], *pval; ostrstream sbuf; string str, str2; bool exist_flag; vector vec; while(is.getline(ln, LINE_SIZE)) { str = ln; trimleft(ln); exist_flag = false; if(ln[0] != '#' && (pval = strchr(ln, '=')) != NULL) { pval[0] = 0; trimright(ln); if(ln[0] != 0 && !(str2=get(ln)).empty()) { sbuf << ln << "=" << str2 << endl; vec.push_back(ln); exist_flag = true; } } if(exist_flag == false) sbuf << str << endl; } vector::iterator elm_iter = _elms.begin(), elm_end = _elms.end(); vector::iterator val_iter = _vals.begin(), val_end = _elms.end(); vector::iterator vec_iter, vec_end = vec.end(); while(elm_iter != elm_end && val_iter != val_end) { vec_iter = vec.begin(); exist_flag = false; while(vec_iter != vec_end) { if((*vec_iter) == (*elm_iter)) { exist_flag = true; break; } vec_iter ++; } if(exist_flag == false) sbuf << *elm_iter << "=" << *val_iter << endl; elm_iter ++; val_iter ++; } sbuf << ends; ofstream os(filename.c_str()); if(os) os << sbuf.str(); } void MyProperties::save() { save(_file); } /* trim the space and tab at left */ char* trimleft( char *s ) { register int i=0; int sl=0; char *sc =0; if( s == NULL || s[0] == 0 ) return NULL; sl = strlen( s ); /* trim space and tab char at the left */ for( i=0; i s ) { sl = strlen(sc); for( i=0; i=0; i-- ) { /* 32 is space, 9 is tab */ if( s[i] == 32 || s[i] == 9 ) s[i] = 0; else break; } return s; } /* trim space and tab at left and right */ char* trim( char *s ) { if( s == NULL || s[0] == 0 ) return NULL; trimright( s ); trimleft( s ); return s; }
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