Function BasicString.popBackCodePoint
Erases the last utf code point of the BasicString
, effectively reducing its length by code point length.
ubyte popBackCodePoint() pure nothrow @nogc scope @trusted;
Return number of erased characters, 0 if string is empty or if last character is not valid code point.
Examples
{
BasicString!char str = "á1"; //'á' is encoded as 2 chars
assert(str .popBackCodePoint == 1);
assert(str == "á");
assert(str .popBackCodePoint == 2);
assert(str .empty);
assert(str .popBackCodePoint == 0);
assert(str .empty);
}
{
BasicString!char str = "1á"; //'á' is encoded as 2 chars
assert(str .length == 3);
str .erase(str .length - 1);
assert(str .length == 2);
assert(str .popBackCodePoint == 0); //popBackCodePoint cannot remove invalid code points
assert(str .length == 2);
}