Magic-Mirror/python-uncompyle6
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Fix bug in docstring triple quotes

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Problem was not escaping """ inside """.
Use ''' when possible; and when not, use: \"\"\".
This commit is contained in:
rocky 2016-11-20 12:03:24 -05:00
parent 80df5dcc95
commit 805e17988e
3 changed files with 16 additions and 3 deletions
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BIN
test/bytecode_2.7/00_docstring.pyc Normal file
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7
test/simple_source/stmts/00_docstring.py Normal file
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@ -0,0 +1,7 @@
# uncompyle2 bug was not escaping """ properly
r'''func placeholder - with ("""\nstring\n""")'''
def foo():
r'''func placeholder - ' and with ("""\nstring\n""")'''
def bar():
r"""func placeholder - ' and with ('''\nstring\n''') and \"\"\"\nstring\n\"\"\" """

12
uncompyle6/semantics/pysource.py
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@ -741,7 +741,12 @@ class SourceWalker(GenericASTTraversal, object):
self.pending_newlines = max(self.pending_newlines, 1)
def print_docstring(self, indent, docstring):
quote = '"""'
## FIXME: put this into a testable function.
if docstring.find('"""') == -1:
quote = '"""'
else:
quote = "'''"
self.write(indent)
if not PYTHON3 and not isinstance(docstring, str):
# Must be unicode in Python2
@ -774,10 +779,11 @@ class SourceWalker(GenericASTTraversal, object):
# ruin the ending triple quote
if len(docstring) and docstring[-1] == '"':
docstring = docstring[:-1] + '\\"'
# Escape triple quote anywhere
docstring = docstring.replace('"""', '\\"\\"\\"')
# Restore escaped backslashes
docstring = docstring.replace('\t', '\\\\')
# Escape triple quote when needed
if quote == '""""':
docstring = docstring.replace('"""', '\\"\\"\\"')
lines = docstring.split('\n')
calculate_indent = maxint
for line in lines[1:]: