void locate_path_root(const wstring& path, size_t& path_root_len, bool& is_unc_path) {
unsigned prefix_len = 0;
is_unc_path = false;
if (substr_match(path, 0, L"\\\\")) {
if (substr_match(path, 2, L"?\\UNC\\")) {
prefix_len = 8;
is_unc_path = true;
}
else if (substr_match(path, 2, L"?\\") || substr_match(path, 2, L".\\")) {
prefix_len = 4;
}
else {
prefix_len = 2;
is_unc_path = true;
}
}
if ((prefix_len == 0) && !substr_match(path, 1, L":")) {
path_root_len = 0;
}
else {
wstring::size_type p = path.find(L'\\', prefix_len);
if (p == wstring::npos) {
p = path.size();
}
if (is_unc_path) {
p = path.find(L'\\', p + 1);
if (p == wstring::npos) {
p = path.size();
}
}
path_root_len = p;
}
}
wstring long_path(const wstring& path) {
if (substr_match(path, 0, L"\\\\")) {
if (substr_match(path, 2, L"?\\") || substr_match(path, 2, L".\\")) {
return path;
}
else {
return wstring(path).replace(0, 1, L"\\\\?\\UNC");
}
}
else {
return wstring(path).insert(0, L"\\\\?\\");
}
}
void parse_cmd_line(const deque<wstring>& params, list<wstring>& source_dirs, list<wstring>& include_dirs) {
source_dirs.assign(1, wstring());
for (auto param = params.cbegin(); param != params.cend(); ++param) {
if (substr_match(*param, 0, L"-I")) {
wstring inc_dir = param->substr(2);
CHECK_CMD(!inc_dir.empty());
fix_slashes(inc_dir);
include_dirs.push_back(inc_dir);
}
else {
wstring src_dir = *param;
fix_slashes(src_dir);
source_dirs.push_back(src_dir);
}
}
}
