[Python-bugs-list] [ python-Bugs-449964 ] sre.sub() fails

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Bugs item #449964, was opened at 2001-08-10 17:06
You can respond by visiting: 
http://sourceforge.net/tracker/?func=detail&atid=105470&aid=449964&group_id=5470

Category: Regular Expressions
Group: None
>Status: Closed
>Resolution: Fixed
Priority: 5
Submitted By: Atsuo Ishimoto (atsuoi)
Assigned to: Fredrik Lundh (effbot)
Summary: sre.sub() fails 

Initial Comment:

sre.sub() raises exception if template contains
"\g<number>" .

Traceback (most recent call last):
  File "<stdin>", line 1, in ?
  File "c:\tools\python21\lib\sre.py", line 71, in subn
    return _compile(pattern, 0).subn(repl, string, 
count)
  File "c:\tools\python21\lib\sre.py", line 171, in 
_subn
    template = _compile_repl(template, pattern)
  File "c:\tools\python21\lib\sre.py", line 149, in 
_compile_repl
    p = sre_parse.parse_template(repl, pattern)
  File "c:\tools\python21\lib\sre_parse.py", line 701, 
in parse_template
    this = char(ESCAPES[this][1])
TypeError: object is not callable: '>'

---------------------------------------------------

This patch fix problem.

$ diff -u sre_parse.py.orig sre_parse.py
--- sre_parse.py.orig   Sat Aug 11 08:44:11 2001
+++ sre_parse.py        Sat Aug 11 08:51:43 2001
@@ -658,12 +658,12 @@
                 name = ""
                 if s.match("<"):
                     while 1:
-                        char = s.get()
-                        if char is None:
+                        c = s.get()
+                        if c is None:
                             raise 
error, "unterminated group name"
-                        if char == ">":
+                        if c == ">":
                             break
-                        name = name + char
+                        name = name + c
                 if not name:
                     raise error, "bad group name"
                 try:



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