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ansi_colors: fix crash on invalid ANSI color sequence

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This commit is contained in:
David Strobach 2019-04-28 14:38:39 +02:00
parent f24c7afa69
commit dcc227fa64
2 changed files with 9 additions and 1 deletions
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1
news/fix-ansi-colors.rst
View file

@ -17,6 +17,7 @@
**Fixed:**
* Fixed crash while converting ANSI color codes with leading zeroes
* Fixed crash while parsing invalid ANSI color code
**Security:**

9
xonsh/ansi_colors.py
View file

@ -256,7 +256,14 @@ def ansi_color_escape_code_to_name(escape_code, style, reversed_style=None):
if reversed_style is None:
style, reversed_style = ansi_reverse_style(style, return_style=True)
# strip some actual escape codes, if needed.
ec = ANSI_ESCAPE_CODE_RE.match(escape_code).group(2)
match = ANSI_ESCAPE_CODE_RE.match(escape_code)
if not match:
msg = 'Invalid ANSI color sequence "{0}", using "NO_COLOR" instead.'.format(
escape_code
)
warnings.warn(msg, RuntimeWarning)
return ("NO_COLOR",)
ec = match.group(2)
names = []
n_ints = 0
seen_set_foreback = False