3.x docsting escaping works differently?

pytest/test_docstring.py

@@ -1,78 +0,0 @@
-import sys
-from uncompyle6 import PYTHON3
-if PYTHON3:
-    from io import StringIO
-    minint = -sys.maxsize-1
-    maxint = sys.maxsize
-else:
-    from StringIO import StringIO
-    minint = -sys.maxint-1
-    maxint = sys.maxint
-from uncompyle6.semantics.helper import print_docstring
-
-class PrintFake():
-    def __init__(self):
-        self.pending_newlines = 0
-        self.f = StringIO()
-
-    def write(self, *data):
-        if (len(data) == 0) or (len(data) == 1 and data[0] == ''):
-            return
-        out = ''.join((str(j) for j in data))
-        n = 0
-        for i in out:
-            if i == '\n':
-                n += 1
-                if n == len(out):
-                    self.pending_newlines = max(self.pending_newlines, n)
-                    return
-            elif n:
-                self.pending_newlines = max(self.pending_newlines, n)
-                out = out[n:]
-                break
-            else:
-                break
-
-        if self.pending_newlines > 0:
-            self.f.write('\n'*self.pending_newlines)
-            self.pending_newlines = 0
-
-        for i in out[::-1]:
-            if i == '\n':
-                self.pending_newlines += 1
-            else:
-                break
-
-        if self.pending_newlines:
-            out = out[:-self.pending_newlines]
-        self.f.write(out)
-    def println(self, *data):
-        if data and not(len(data) == 1 and data[0] == ''):
-            self.write(*data)
-        self.pending_newlines = max(self.pending_newlines, 1)
-        return
-    pass
-
-def test_docstring():
-
-    for doc, expect in (
-            ("Now is the time",
-             '  """Now is the time"""'),
-           ("""
-Now is the time
-""",
-            '''  """
-  Now is the time
-  """''')
-
-            # (r'''func placeholder - ' and with ("""\nstring\n  """)''',
-            #  """  r'''func placeholder - ' and with (\"\"\"\nstring\n\"\"\")'''"""),
-            # (r"""func placeholder - ' and with ('''\nstring\n''') and \"\"\"\nstring\n\"\"\" """,
-            # """  r\"\"\"func placeholder - ' and with ('''\nstring\n''') and \"\"\"\nstring\n\"\"\" \"\"\"""")
-            ):
-
-        o = PrintFake()
-        # print(doc)
-        # print(expect)
-        print_docstring(o, '  ', doc)
-        assert expect == o.f.getvalue()

uncompyle6/semantics/helper.py

@@ -99,14 +99,9 @@ def strip_quotes(str):
 
 
 def print_docstring(self, indent, docstring):
-    try:
-        if docstring.find('"""') == -1:
-            quote = '"""'
-        else:
-            quote = "'''"
-            docstring = docstring.replace("'''", "\\'''")
-    except:
-        return False
+    quote = '"""'
+    if docstring.find("'''") == -1:
+        quote = "'''"
     self.write(indent)
     if not PYTHON3 and not isinstance(docstring, str):
         # Must be unicode in Python2
@@ -132,18 +127,31 @@ def print_docstring(self, indent, docstring):
         and (docstring[-1] != '"'
              or docstring[-2] == '\t')):
         self.write('r') # raw string
-        # restore backslashes unescaped since raw
+        # Restore backslashes unescaped since raw
         docstring = docstring.replace('\t', '\\')
     else:
         # Escape '"' if it's the last character, so it doesn't
         # ruin the ending triple quote
         if len(docstring) and docstring[-1] == '"':
             docstring = docstring[:-1] + '\\"'
-        # Restore escaped backslashes
+
+        # Escape triple quote when needed
+        if quote == '"""':
+            if self.version > 2.7:
+                replace_str = '\\"""'
+            else:
+                replace_str = '\\"\\"\\"'
+            docstring = docstring.replace(quote, replace_str)
+        else:
+            assert quote == "'''"
+            if self.version > 2.7:
+                replace_str = "\\'''"
+            else:
+                replace_str = "\\'\\'\\'"
+            docstring = docstring.replace(quote, replace_str)
+
         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:]:
@@ -152,6 +160,7 @@ def print_docstring(self, indent, docstring):
             calculate_indent = min(calculate_indent, len(line) - len(stripped))
     calculate_indent = min(calculate_indent, len(lines[-1]) - len(lines[-1].lstrip()))
     # Remove indentation (first line is special):
+
     trimmed = [lines[0]]
     if calculate_indent < maxint:
         trimmed += [line[calculate_indent:] for line in lines[1:]]
@@ -164,7 +173,12 @@ def print_docstring(self, indent, docstring):
     else:
         self.println(trimmed[0])
         for line in trimmed[1:-1]:
-            self.println( indent, line )
+            if line:
+                self.println( indent, line )
+            else:
+                self.println( "\n\n" )
+                pass
+            pass
         self.println(indent, trimmed[-1], quote)
     return True