def strslice2unicode_latin1(s, start, end):
"""
Convert s[start:end] to unicode. s is supposed to be an RPython string
encoded in latin-1, which means that the numeric value of each char is the
same as the corresponding unicode code point.
Internally it's implemented at the level of low-level helpers, to avoid
the extra copy we would need if we take the actual slice first.
No bound checking is done, use carefully.
"""
from rpython.rtyper.annlowlevel import llstr, hlunicode
from rpython.rtyper.lltypesystem.rstr import malloc, UNICODE
from rpython.rtyper.lltypesystem.lltype import cast_primitive, UniChar
length = end - start
ll_s = llstr(s)
ll_res = malloc(UNICODE, length)
ll_res.hash = 0
for i in range(length):
ch = ll_s.chars[start + i]
ll_res.chars[i] = cast_primitive(UniChar, ch)
return hlunicode(ll_res)
def strslice2unicode_latin1(s, start, end):
"""
Convert s[start:end] to unicode. s is supposed to be an RPython string
encoded in latin-1, which means that the numeric value of each char is the
same as the corresponding unicode code point.
Internally it's implemented at the level of low-level helpers, to avoid
the extra copy we would need if we take the actual slice first.
No bound checking is done, use carefully.
"""
from rpython.rtyper.annlowlevel import llstr, hlunicode
from rpython.rtyper.lltypesystem.rstr import malloc, UNICODE
from rpython.rtyper.lltypesystem.lltype import cast_primitive, UniChar
length = end-start
ll_s = llstr(s)
ll_res = malloc(UNICODE, length)
ll_res.hash = 0
for i in range(length):
ch = ll_s.chars[start+i]
ll_res.chars[i] = cast_primitive(UniChar, ch)
return hlunicode(ll_res)