xref: /aosp_15_r20/external/fonttools/Lib/fontTools/unicode.py (revision e1fe3e4ad2793916b15cccdc4a7da52a7e1dd0e9) 
1def _makeunicodes(f):
2    lines = iter(f.readlines())
3    unicodes = {}
4    for line in lines:
5        if not line:
6            continue
7        num, name = line.split(";")[:2]
8        if name[0] == "<":
9            continue  # "<control>", etc.
10        num = int(num, 16)
11        unicodes[num] = name
12    return unicodes
13
14
15class _UnicodeCustom(object):
16    def __init__(self, f):
17        if isinstance(f, str):
18            with open(f) as fd:
19                codes = _makeunicodes(fd)
20        else:
21            codes = _makeunicodes(f)
22        self.codes = codes
23
24    def __getitem__(self, charCode):
25        try:
26            return self.codes[charCode]
27        except KeyError:
28            return "????"
29
30
31class _UnicodeBuiltin(object):
32    def __getitem__(self, charCode):
33        try:
34            # use unicodedata backport to python2, if available:
35            # https://github.com/mikekap/unicodedata2
36            import unicodedata2 as unicodedata
37        except ImportError:
38            import unicodedata
39        try:
40            return unicodedata.name(chr(charCode))
41        except ValueError:
42            return "????"
43
44
45Unicode = _UnicodeBuiltin()
46
47
48def setUnicodeData(f):
49    global Unicode
50    Unicode = _UnicodeCustom(f)
51