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Fix soft hyphens not being preserved when round tripping text through the terminal

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Also roundtrip all characters in the Cf category.

Characters with the DI (Default Ignorable) property are now
preserved but not rendered and treated as zero-width
as per the unicode standard.
See https://www.unicode.org/faq/unsup_char.html
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Kovid Goyal 2021-10-07 10:26:57 +05:30
parent 1b42f69119
commit fbf47f75d5
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10 changed files with 465 additions and 392 deletions
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kitty_tests/datatypes.py
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@ -369,6 +369,7 @@ class TestDataTypes(BaseTest):
self.ae(wcswidth('\U0001F1E6a\U0001F1E8a'), 6)
self.ae(wcswidth('\U0001F1E6\U0001F1E8a'), 3)
self.ae(wcswidth('\U0001F1E6\U0001F1E8\U0001F1E6'), 4)
self.ae(wcswidth('a\u00adb'), 2)
# Regional indicator symbols (unicode flags) are defined as having
# Emoji_Presentation so must have width 2
self.ae(tuple(map(w, '\U0001f1ee\U0001f1f3')), (2, 2))