+def brace_matcher (n):
+ # poor man's matched brace scanning, gives up
+ # after n+1 levels. Matches any string with balanced
+ # braces inside; add the outer braces yourself if needed.
+ # Nongreedy.
+ return r"[^{}]*?(?:{"*n+r"[^{}]*?"+r"}[^{}]*?)*?"*n
+
+matchstring = r'"(?:[^"\\]|\\.)*"'
+matcharg = (r"\s+(?:[$#]['`]?\s*(?:[a-zA-Z]\S*|" + matchstring + r"|\("
+ + paren_matcher(20) + r"\))|" + matchstring + r"|\\[a-z_A-Z]+)")
+matchmarkup = (r'(?:\\markup\s*(?:{' + brace_matcher (20) +r'}|' +
+ matchstring + r'|(?:\\[a-z_A-Z][a-z_A-Z-]*(?:' + matcharg +
+ r')*?\s*)*(?:' + matchstring + "|{" + brace_matcher (20) +
+ "}))|" + matchstring + ")")
+
+@rule((2, 15, 25), r"\(auto)?Footnote(Grob)? -> \footnote")
+def conv (str):
+ # The following replacement includes the final markup argument in
+ # the match in order to better avoid touching the equally named
+ # markup function. The other functions have unique names, so
+ # there is no point in including their last, possibly complex
+ # argument in the match.
+ str = re.sub (r"\\footnote(" + matcharg + (r")(\s*" + matchmarkup)*2 + ")",
+ r"\\footnote\2\1\3", str)
+ str = re.sub (r"\\footnoteGrob"+("(" + matcharg + ")")*2 + r"(\s*" + matchmarkup + ")",
+ r"\\footnote\3\2\1", str)
+ str = re.sub (r"\\autoFootnoteGrob" + ("(" + matcharg + ")")*2,
+ r"\\footnote\2\1", str)
+ str = re.sub (r"\\autoFootnote",
+ r"\\footnote", str)
+ return str