core :: CString :: to_s_unsafe
String from the data at self (with unsafe options)The default behavior is the safest and equivalent to to_s.
Options:
Set byte_length to the number of bytes to use as data.
Otherwise, this method searches for a terminating null byte.
Set char_length to the number of Unicode character in the string.
Otherwise, the data is read to count the characters.
Ignored if clean == true.
If copy == true, the default, copies the data at self in the
Nit GC allocated memory. Otherwise, the return may still point to
the data at self.
If clean == true, the default, the string is cleaned of invalid UTF-8
characters. If cleaning is necessary, the data is copied into Nit GC
managed memory, whether or not copy == true.
Don't clean only when the data has already been verified as valid UTF-8,
other library services rely on UTF-8 compliant characters.
# Get a `String` from the data at `self` (with unsafe options)
#
# The default behavior is the safest and equivalent to `to_s`.
#
# Options:
#
# * Set `byte_length` to the number of bytes to use as data.
# Otherwise, this method searches for a terminating null byte.
#
# * Set `char_length` to the number of Unicode character in the string.
# Otherwise, the data is read to count the characters.
# Ignored if `clean == true`.
#
# * If `copy == true`, the default, copies the data at `self` in the
# Nit GC allocated memory. Otherwise, the return may still point to
# the data at `self`.
#
# * If `clean == true`, the default, the string is cleaned of invalid UTF-8
# characters. If cleaning is necessary, the data is copied into Nit GC
# managed memory, whether or not `copy == true`.
# Don't clean only when the data has already been verified as valid UTF-8,
# other library services rely on UTF-8 compliant characters.
fun to_s_unsafe(byte_length, char_length: nullable Int, copy, clean: nullable Bool): String is abstract
lib/core/text/abstract_text.nit:2527,2--2549,104
redef fun to_s_unsafe(byte_length, char_length, copy, clean)
do
byte_length = byte_length or else cstring_length
clean = clean or else true
copy = copy or else true
# Clean?
var str = null
if clean then
str = clean_utf8(byte_length)
char_length = str.length
else
char_length = char_length or else utf8_length(0, byte_length)
end
# Copy? (if not already copied by `clean_utf8`)
if copy and (str == null or str.items == self) then
var new_cstr = new CString(byte_length + 1)
copy_to(new_cstr, byte_length, 0, 0)
new_cstr[byte_length] = 0
str = new FlatString.full(new_cstr, byte_length, 0, char_length)
end
if str == null then
str = new FlatString.full(self, byte_length, 0, char_length)
end
return str
end
lib/core/text/flat.nit:1315,2--1343,4