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"""fontTools.misc.encodingTools.py -- tools for working with OpenType encodings.
"""
import fontTools.encodings.codecs
# Map keyed by platformID, then platEncID, then possibly langID
_encodingMap = {
0: { # Unicode
0: "utf_16_be",
1: "utf_16_be",
2: "utf_16_be",
3: "utf_16_be",
4: "utf_16_be",
5: "utf_16_be",
6: "utf_16_be",
},
1: { # Macintosh
# See
# https://github.com/fonttools/fonttools/issues/236
0: { # Macintosh, platEncID==0, keyed by langID
15: "mac_iceland",
17: "mac_turkish",
18: "mac_croatian",
24: "mac_latin2",
25: "mac_latin2",
26: "mac_latin2",
27: "mac_latin2",
28: "mac_latin2",
36: "mac_latin2",
37: "mac_romanian",
38: "mac_latin2",
39: "mac_latin2",
40: "mac_latin2",
Ellipsis: "mac_roman", # Other
},
1: "x_mac_japanese_ttx",
2: "x_mac_trad_chinese_ttx",
3: "x_mac_korean_ttx",
6: "mac_greek",
7: "mac_cyrillic",
25: "x_mac_simp_chinese_ttx",
29: "mac_latin2",
35: "mac_turkish",
37: "mac_iceland",
},
2: { # ISO
0: "ascii",
1: "utf_16_be",
2: "latin1",
},
3: { # Microsoft
0: "utf_16_be",
1: "utf_16_be",
2: "shift_jis",
3: "gb2312",
4: "big5",
5: "euc_kr",
6: "johab",
10: "utf_16_be",
},
}
def getEncoding(platformID, platEncID, langID, default=None):
"""Returns the Python encoding name for OpenType platformID/encodingID/langID
triplet. If encoding for these values is not known, by default None is
returned. That can be overriden by passing a value to the default argument.
"""
encoding = _encodingMap.get(platformID, {}).get(platEncID, default)
if isinstance(encoding, dict):
encoding = encoding.get(langID, encoding[Ellipsis])
return encoding
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