comparison mercurial/encoding.py @ 17235:3745ae495ce5 stable

encoding: use s.decode to trigger UnicodeDecodeError

When calling encode on a str, the string is first decoded using the
default encoding and then encoded. So

  s.encode('ascii') == s.decode().encode('ascii')

We don't care about the encode step here -- we're just after the
UnicodeDecodeError raised by decode if it finds a non-ASCII character.

This way is also marginally faster since it saves the construction of
the extra str object.

17234:0cfece81e051

            return t

def lower(s):
    "best-effort encoding-aware case-folding of local string s"
    try:
        return s.encode('ascii').lower()
    except UnicodeError:
        pass
    try:
        if isinstance(s, localstr):
            u = s._utf8.decode("utf-8")
        else:

17235:3745ae495ce5

            return t

def lower(s):
    "best-effort encoding-aware case-folding of local string s"
    try:
        s.decode('ascii') # throw exception for non-ASCII character
        return s.lower()
    except UnicodeDecodeError:
        pass
    try:
        if isinstance(s, localstr):
            u = s._utf8.decode("utf-8")
        else: