[tests] Workaround Python 2 “narrow” builds

The so-called Python 2 “narrow” builds support UCS2 only, this is a
workaround to allow unichr to work with any Unicode character in such
builds. This fixes Travis-CI failure as it has narrow Python 2 builds.

Copied from:
https://github.com/behdad/fonttools/blob/master/Lib/fontTools/misc/py23.py
This commit is contained in:
Khaled Hosny 2016-06-18 21:12:19 +02:00
parent 4b8de1ea80
commit 988350586f
1 changed files with 37 additions and 1 deletions

View File

@ -7,7 +7,43 @@ from itertools import *
diff_symbols = "-+=*&^%$#@!~/" diff_symbols = "-+=*&^%$#@!~/"
diff_colors = ['red', 'green', 'blue'] diff_colors = ['red', 'green', 'blue']
if sys.version_info[0] >= 3: try:
unichr = unichr
if sys.maxunicode < 0x10FFFF:
# workarounds for Python 2 "narrow" builds with UCS2-only support.
_narrow_unichr = unichr
def unichr(i):
"""
Return the unicode character whose Unicode code is the integer 'i'.
The valid range is 0 to 0x10FFFF inclusive.
>>> _narrow_unichr(0xFFFF + 1)
Traceback (most recent call last):
File "<stdin>", line 1, in ?
ValueError: unichr() arg not in range(0x10000) (narrow Python build)
>>> unichr(0xFFFF + 1) == u'\U00010000'
True
>>> unichr(1114111) == u'\U0010FFFF'
True
>>> unichr(0x10FFFF + 1)
Traceback (most recent call last):
File "<stdin>", line 1, in ?
ValueError: unichr() arg not in range(0x110000)
"""
try:
return _narrow_unichr(i)
except ValueError:
try:
padded_hex_str = hex(i)[2:].zfill(8)
escape_str = "\\U" + padded_hex_str
return escape_str.decode("unicode-escape")
except UnicodeDecodeError:
raise ValueError('unichr() arg not in range(0x110000)')
except NameError:
unichr = chr unichr = chr
class ColorFormatter: class ColorFormatter: