New Thread- Supporting Multiline values in ConfigParser

Phoe6 orsenthil at gmail.com
Mon Jun 25 16:06:04 CEST 2007


Hi,
Am starting a new thread as I fear the old thread which more than a
week old can go unnoticed.
Sorry for the multiple mails.

I took the approach of Subclassing ConfigParser to support multiline
values without leading white-spaces, but am struct at which position
in _read I should modify to accomodate the non-leading whitespace
based multiline values.

I can guess, this portion in the _read function will require change,
any change to this affects the whole of parsing. :-(  Can someone who
has done this before or understands ConfigParser better help me?

# Section I am talking about
                        if line[0].isspace() and cursect is not None
and optname:

                                value = line.strip()
                                if value:
                                        cursect[optname] = "%s\n%s" %
(cursect[optname], value)

# _read method

        def _read(self, fp, fpname):
                cursect = None
                optname = None
                lineno = 0
                e = None
                while True:
                        line = fp.readline()
                        if not line:
                                break
                        lineno = lineno + 1
                        # comment or blank line?
                        if line.strip() == '' or line[0] in '#;':
                                continue
                        if line.split(None, 1)[0].lower() == 'rem' and
line[0] in "rR":
                                # no leading whitespace
                                continue
                        # continuation line
                        print "line:%s\tcursect:%s\toptname:%s"%
(line,cursect,optname)

                        if line[0].isspace() and cursect is not None
and optname:

                                value = line.strip()
                                if value:
                                        cursect[optname] = "%s\n%s" %
(cursect[optname], value)
                        # a section header or option header?
                        else:
                                # is it a section header?
                                mo = self.SECTCRE.match(line)
                                if mo:
                                        sectname = mo.group('header')
                                        if sectname in self._sections:
                                                cursect =
self._sections[sectname]
                                        elif sectname ==
ConfigParser.DEFAULTSECT:
                                                cursect =
self._defaults
                                        else:
                                                cursect =
{'__name__':sectname}
 
self._sections[sectname] = cursect
                                        # So sections can't start with
a continuation line
                                        optname = None
                                elif cursect is None:
                                        raise
ConfigParser.MissingSectionHeaderError(fpname, lineno,
line)
                                # an option line?
                                else:
                                        mo = self.OPTCRE.match(line)
                                        if mo:
                                                optname, vi, optval =
mo.group('option','vi','value')
                                                if vi in ('=',':') and
';' in optval:
                                                        # ';' is a
comment delimiter only if it follows
                                                        # a spacing
character
                                                        pos =
optval.find(';')
                                                        if pos != -1
and optval[pos-1].isspace():
                                                                optval
= optval[:pos]
                                                optval =
optval.strip()
                                                # allow empty values
                                                if optval == '""':
                                                        optval = ''
                                                optname =
self.optionxform(optname.rstrip())
                                                cursect[optname] =
optval
                                        else:
                                                if not e:
                                                        e =
ConfigParser.ParsingError(fpname)
                                                e.append(lineno,
repr(line))
                if e:
                        raise e

--
Senthil




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