bool PatchTree::UpdateTree(PatchTree **tree) {
PatchTree **child = tree;
bool getdelete = false;
char *line = strcpy(new char[MAX_LINE], "");
if(Parent) line[strlen(strcat(line, Parent))-1]!='/'?strcat(line, "/"):strlen(line)==1?strcpy(line, ""):line;
strcat(line, Section);
char *path, *start, *end;
end = start = path = strcpy(new char[strlen(line)+1], line);
while((end = strstr(end, "/"))||start) {
strncpy_s(line, MAX_LINE, start, end ? end++ - start : strlen(start));
start = end;
if(!(*child)) (*child) = start ? new PatchTree(line) : this;
PatchTree **next = child;
do {
if(_stricmp((*next)->Section, line)==0) {// If already exists.
if(start) child = &(*next)->Child;
else getdelete = UpdateSection(next);// Updating current section.
break;
}
next = &(*next)->Next;
}while(*next);
if (!(*next)) {
(*next) = start ? new PatchTree(line) : this;
child = &(*next)->Child;
}
if(!start) break;
}
delete[] path;
delete[] line;
return getdelete;
}
int IniFile::Load(const string &filename)
{
int err;
string line; // 带注释的行
string cleanLine; // 去掉注释后的行
string comment;
string rightComment;
IniSection *currSection = NULL; // 初始化一个字段指针
release();
fname_ = filename;
std::ifstream ifs(fname_);
if (!ifs.is_open()) {
cout << "open file failed\n";
return -1;
}
//增加默认段，即 无名段""
currSection = new IniSection();
currSection->name = "";
sections_vt.push_back(currSection);
// 每次读取一行内容到line
while (std::getline(ifs, line)) {
trim(line);
// step 0，空行处理，如果长度为0，说明是空行，添加到comment，当作是注释的一部分
if (line.length() <= 0) {
comment += delim;
continue;
}
// step 1
// 如果行首不是注释，查找行尾是否存在注释
// 如果该行以注释开头，添加到comment，跳过当前循环，continue
if (IsCommentLine(line)) {
comment += line + delim;
continue;
}
// 如果行首不是注释，查找行尾是否存在注释，若存在，切割该行，将注释内容添加到rightComment
split(line, commentHead, &cleanLine, &rightComment);
// step 2，判断line内容是否为段或键
//段开头查找 [
if (cleanLine[0] == '[') {
err = UpdateSection(cleanLine, comment, rightComment, &currSection);
} else {
// 如果该行是键值，添加到section段的items容器
err = AddKeyValuePair(cleanLine, comment, rightComment, currSection);
}
if (err != 0) {
ifs.close();
return err;
}
// comment清零
comment = "";
rightComment = "";
}
ifs.close();
return 0;
}