New submission from Serhiy Storchaka:
Proposed patch adds additional attributes to the re.error exception: msg,
pattern, pos, colno, lineno. It also adds helpful information to error message.
Examples:
re.compile(rabc\u123)
Traceback (most recent call last):
File stdin, line 1, in module
File /home/serhiy/py/cpython/Lib/re.py, line 220, in compile
return _compile(pattern, flags)
File /home/serhiy/py/cpython/Lib/re.py, line 287, in _compile
p = sre_compile.compile(pattern, flags)
File /home/serhiy/py/cpython/Lib/sre_compile.py, line 465, in compile
p = sre_parse.parse(p, flags)
File /home/serhiy/py/cpython/Lib/sre_parse.py, line 797, in parse
p = _parse_sub(source, pattern, 0)
File /home/serhiy/py/cpython/Lib/sre_parse.py, line 387, in _parse_sub
itemsappend(_parse(source, state))
File /home/serhiy/py/cpython/Lib/sre_parse.py, line 767, in _parse
code = _escape(source, this, state)
File /home/serhiy/py/cpython/Lib/sre_parse.py, line 378, in _escape
raise source.error(bogus escape: %s % repr(escape), len(escape))
sre_constants.error: bogus escape: '\\u123' at position 3
re.compile(
... (?x)
... .++
... )
Traceback (most recent call last):
File stdin, line 4, in module
File /home/serhiy/py/cpython/Lib/re.py, line 220, in compile
return _compile(pattern, flags)
File /home/serhiy/py/cpython/Lib/re.py, line 287, in _compile
p = sre_compile.compile(pattern, flags)
File /home/serhiy/py/cpython/Lib/sre_compile.py, line 465, in compile
p = sre_parse.parse(p, flags)
File /home/serhiy/py/cpython/Lib/sre_parse.py, line 797, in parse
p = _parse_sub(source, pattern, 0)
File /home/serhiy/py/cpython/Lib/sre_parse.py, line 387, in _parse_sub
itemsappend(_parse(source, state))
File /home/serhiy/py/cpython/Lib/sre_parse.py, line 602, in _parse
source.tell() - here + len(this))
sre_constants.error: multiple repeat at position 16 (line 3, column 7)
See also PEP 473, issue19361 and issue22364.
--
files: re_error_attrs.patch
keywords: patch
messages: 228787
nosy: serhiy.storchaka
priority: normal
severity: normal
status: open
title: Add addition attributes to re.error
Added file: http://bugs.python.org/file36834/re_error_attrs.patch
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