static bool shouldConsiderUnaryLiteral(string_view& stream, Location& pos)
{
// check the previous token
bool should = (prevType != TokenType::Invalid && prevID == pos.fileID && (
prevType != TokenType::RParen &&
prevType != TokenType::RSquare &&
prevType != TokenType::Identifier &&
prevType != TokenType::Number &&
prevType != TokenType::Dollar &&
prevType != TokenType::StringLiteral
));
if(!should) return false;
// check if the current char is a + or -
if(stream.length() == 0) return false;
if(stream[0] != '+' && stream[0] != '-') return false;
// check if there's only spaces between this and the number itself
for(size_t i = 1; i < stream.length(); i++)
{
if(isdigit(stream[i])) return true;
else if(stream[i] != ' ') return false;
}
return false;
}
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());
}
}
allocation_slot stack_allocator::copy_string(string_view str)
{
int const ret = int(m_storage.size());
m_storage.resize(ret + numeric_cast<int>(str.size()) + 1);
std::memcpy(&m_storage[ret], str.data(), str.size());
m_storage[ret + int(str.length())] = '\0';
return allocation_slot(ret);
}
static bool compare(const string_view& str, char const (&literal)[N])
{
if(str.length() != N - 1) return false;
for(size_t i = 0; i < N - 1; i++)
if(str[i] != literal[i]) return false;
return true;
}
bool ParserKeyword::validNameStart( const string_view& name) {
if (name.length() > ParserConst::maxKeywordLength)
return false;
if (!isalpha(name[0]))
return false;
return true;
}
size_t
TypeDesc::fromstring(string_view typestring)
{
*this = TypeDesc::UNKNOWN;
string_view orig = typestring;
if (typestring.empty()) {
return 0;
}
// The first "word" should be a type name.
string_view type = Strutil::parse_identifier(typestring);
// Check the scalar types in our table above
TypeDesc t;
for (int i = 0; i < LASTBASE; ++i) {
if (type == basetype_name[i]) {
t.basetype = i;
break;
}
}
// Some special case names for aggregates
if (t.basetype != UNKNOWN) {
// already solved
} else if (type == "color")
t = TypeColor;
else if (type == "point")
t = TypePoint;
else if (type == "vector")
t = TypeVector;
else if (type == "normal")
t = TypeNormal;
else if (type == "matrix33")
t = TypeMatrix33;
else if (type == "matrix" || type == "matrix44")
t = TypeMatrix44;
else if (type == "timecode")
t = TypeTimeCode;
else if (type == "rational")
t = TypeRational;
else {
return 0; // unknown
}
// Is there an array length following the type name?
if (Strutil::parse_char(typestring, '[')) {
int arraylen = -1;
Strutil::parse_int(typestring, arraylen);
if (!Strutil::parse_char(typestring, ']'))
return 0; // malformed
t.arraylen = arraylen;
}
*this = t;
return orig.length() - typestring.length();
}
path_match_result path_match(string_view input, string_view& match_contents)
{
if (input.length() < 2)
return path_match_result::invalid;
match_result result;
token_kind kind;
std::size_t length;
switch (input.at(0))
{
case '.':
result = match_simple_string(input.data() + 1, input.data() + input.size(), kind, length);
if (result == match_result::complete)
{
match_contents = input.substr(0, length + 1);
return path_match_result::simple_object;
}
else
{
return path_match_result::invalid;
}
case '[':
result = attempt_match(input.data() + 1, input.data() + input.length(), kind, length);
if (result == match_result::complete)
{
if (input.length() == length + 1 || input.at(1 + length) != ']')
return path_match_result::invalid;
if (kind != token_kind::string && kind != token_kind::number)
return path_match_result::invalid;
match_contents = input.substr(0, length + 2);
return path_match_result::brace;
}
else
{
return path_match_result::invalid;
}
default:
return path_match_result::invalid;
}
}
int reload(lua_State* L, const Data& chunk, const string_view& name)
{
lua_getglobal(L, "package");
lua_pushliteral(L, "loaded");
lua_rawget(L, -2);
R_ASSERT(lua_istable(L, -1), "Missing control table 'package.loaded'");
lua_pushlstring(L, name.data(), name.length());
lua_pushnil(L);
lua_rawset(L, -3);
lua_pop(L, 2);
return load(L, chunk, name.data(), true);
}
wstring
MBCSToWCS(string_view sv, unsigned cp)
{
return sv.length() != 0 ? MBCSToWCS(CheckNonnegativeScalar<int>(
sv.length()), sv.data(), cp) : wstring();
}
string
MBCSToMBCS(string_view sv, unsigned cp_src, unsigned cp_dst)
{
return sv.length() != 0 ? MBCSToMBCS(CheckNonnegativeScalar<int>(
sv.length()), sv.data(), cp_src, cp_dst) : string();
}