void test_strview_basics(const string_view& sv, const char *p, size_t n) {
ASSERT_EQ(p, sv.data());
ASSERT_EQ(n, sv.size());
ASSERT_EQ(n, sv.length());
ASSERT_EQ((n == 0), sv.empty());
ASSERT_EQ(p, sv.cbegin());
ASSERT_EQ(p, sv.begin());
ASSERT_EQ(p + n, sv.cend());
ASSERT_EQ(p + n, sv.end());
using reviter_t = std::reverse_iterator<string_view::const_iterator>;
ASSERT_EQ(reviter_t(sv.end()), sv.rbegin());
ASSERT_EQ(reviter_t(sv.begin()), sv.rend());
ASSERT_EQ(reviter_t(sv.cend()), sv.crbegin());
ASSERT_EQ(reviter_t(sv.cbegin()), sv.crend());
for (size_t i = 0; i < n; ++i) {
ASSERT_EQ(p[i], sv[i]);
ASSERT_EQ(p[i], sv.at(i));
}
ASSERT_THROW(sv.at(n), std::out_of_range);
ASSERT_THROW(sv.at(string_view::npos), std::out_of_range);
if (n > 0) {
ASSERT_EQ(p, &(sv.front()));
ASSERT_EQ(p + (n-1), &(sv.back()));
ASSERT_EQ(p[0], sv.front());
ASSERT_EQ(p[n-1], sv.back());
}
}
static string ProcessMetasymbols(string_view Str, subst_data& Data)
{
string Result;
Result.reserve(Str.size());
while (!Str.empty())
{
if (Str.front() == L'!')
{
Str = ProcessMetasymbol(Str, Data, Result);
}
else
{
Result.push_back(Str.front());
Str.remove_prefix(1);
}
}
return Result;
}
// Add the attribute -- figure out the type
void
parse_param(string_view paramname, string_view val, ImageSpec& spec)
{
TypeDesc type; // start out unknown
// If the param string starts with a type name, that's what it is
if (size_t typeportion = type.fromstring(paramname)) {
paramname.remove_prefix(typeportion);
Strutil::skip_whitespace(paramname);
}
// If the value string starts with a type name, that's what it is
else if (size_t typeportion = type.fromstring(val)) {
val.remove_prefix(typeportion);
Strutil::skip_whitespace(val);
}
if (type.basetype == TypeDesc::UNKNOWN) {
// If we didn't find a type name, try to guess
if (val.size() >= 2 && val.front() == '\"' && val.back() == '\"') {
// Surrounded by quotes? it's a string (strip off the quotes)
val.remove_prefix(1);
val.remove_suffix(1);
type = TypeDesc::TypeString;
} else if (Strutil::string_is<int>(val)) {
// Looks like an int, is an int
type = TypeDesc::TypeInt;
} else if (Strutil::string_is<float>(val)) {
// Looks like a float, is a float
type = TypeDesc::TypeFloat;
} else {
// Everything else is assumed a string
type = TypeDesc::TypeString;
}
}
// Read the values and set the attribute
int n = type.numelements() * type.aggregate;
if (type.basetype == TypeDesc::INT) {
std::vector<int> values(n);
for (int i = 0; i < n; ++i) {
Strutil::parse_int(val, values[i]);
Strutil::parse_char(val, ','); // optional
}
if (n > 0)
spec.attribute(paramname, type, &values[0]);
}
if (type.basetype == TypeDesc::FLOAT) {
std::vector<float> values(n);
for (int i = 0; i < n; ++i) {
Strutil::parse_float(val, values[i]);
Strutil::parse_char(val, ','); // optional
}
if (n > 0)
spec.attribute(paramname, type, &values[0]);
} else if (type.basetype == TypeDesc::STRING) {
std::vector<ustring> values(n);
for (int i = 0; i < n; ++i) {
string_view v;
Strutil::parse_string(val, v);
Strutil::parse_char(val, ','); // optional
values[i] = v;
}
if (n > 0)
spec.attribute(paramname, type, &values[0]);
}
}
static void MixToFullPath(const string_view stPath, string& Dest, const string_view stCurrentDir)
{
string strDest;
string_view pstCurrentDir;
bool blIgnore = false;
size_t PathDirOffset = 0;
const auto PathType = ParsePath(stPath, &PathDirOffset);
size_t PathOffset = PathDirOffset;
switch (PathType)
{
case root_type::unknown:
{
if (HasPathPrefix(stPath)) // \\?\<ANY_UNKNOWN_FORMAT>
{
blIgnore = true;
}
else if (!stPath.empty() && IsSlash(stPath.front())) //"\" or "\abc"
{
++PathOffset;
if (!stCurrentDir.empty())
{
size_t CurDirDirOffset = 0;
if (ParsePath(stCurrentDir, &CurDirDirOffset) != root_type::unknown)
{
assign(strDest, stCurrentDir.substr(0, CurDirDirOffset));
}
}
}
else //"abc" or whatever
{
pstCurrentDir = stCurrentDir;
}
}
break;
case root_type::drive_letter: //"C:" or "C:abc"
{
if(stPath.size() > 2 && IsSlash(stPath[2]))
{
PathOffset = 0;
}
else
{
const auto Drive = os::fs::get_drive(stPath[0]);
const auto Value = os::env::get(L'=' + Drive);
if (!Value.empty())
{
strDest = Value;
}
else
{
if (upper(stPath[0])==upper(stCurrentDir[0]))
{
assign(strDest, stCurrentDir);
}
else
{
strDest = Drive;
}
}
AddEndSlash(strDest);
}
}
break;
case root_type::remote: //"\\abc"
{
PathOffset = 0;
}
break;
case root_type::unc_drive_letter: //"\\?\whatever"
case root_type::unc_remote:
case root_type::volume:
case root_type::pipe:
{
blIgnore=true;
PathOffset = 0;
}
break;
}
if (!pstCurrentDir.empty())
{
append(strDest, pstCurrentDir);
AddEndSlash(strDest);
}
append(strDest, stPath.substr(PathOffset));
if (!blIgnore && !HasPathPrefix(strDest))
MixToFullPath(strDest);
Dest = std::move(strDest);
}