"""optparse - a powerful, extensible, and easy-to-use option parser.

By Greg Ward <gward@python.net>

Originally distributed as Optik; see http://optik.sourceforge.net/ .

If you have problems with this module, please do not file bugs,
patches, or feature requests with Python; instead, use Optik's
SourceForge project page:
  http://sourceforge.net/projects/optik

For support, use the optik-users@lists.sourceforge.net mailing list
(http://lists.sourceforge.net/lists/listinfo/optik-users).
"""

# Python developers: ple
ase do not make changes to this file, since
# it is automatically generated from the Optik source code.


__version__ = "1.5.1"

__all__ = ['Option',
           'SUPPRESS_HELP',
           'SUPPRESS_USAGE',
           'Values',
           'OptionContainer',
           'OptionGroup',
           'OptionParser',
           'HelpFormatter',
           'IndentedHelpFormatter',
           'TitledHelpFormatter',
           'OptParseError',
           'OptionError',
           'OptionConflictError',
           'OptionValueError',
           'BadOptionError']

__copyright__ = """
Copyright (c) 2001-2006 Gregory P. Ward.  All rights reserved.
Copyright (c) 2002-2006 Python Software Foundation.  All rights reserved.

Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are
met:

  * Redistributions of source code must retain the above copyright
    notice, this list of conditions and the following disclaimer.

  * Redistributions in binary form must reproduce the above copyright
    notice, this list of conditions and the following disclaimer in the
    documentation and/or other materials provided with the distribution.

  * Neither the name of the author nor the names of its
    contributors may be used to endorse or promote products derived from
    this software without specific prior written permission.

THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS
IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR
CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
"""

import sys, os
import string, re
import types

def _repr(self):
    return "<%s at 0x%x: %s>" % (self.__class__.__name__, id(self), self)


# This file was generated from:
#   Id: option_parser.py 509 2006-04-20 00:58:24Z gward
#   Id: option.py 509 2006-04-20 00:58:24Z gward
#   Id: help.py 509 2006-04-20 00:58:24Z gward
#   Id: errors.py 509 2006-04-20 00:58:24Z gward

try:
    from gettext import gettext
except ImportError:
    def gettext(message):
        return message
_ = gettext


class OptParseError (Exception):
    def __init__(self, msg):
        self.msg = msg

    def __str__(self):
        return self.msg


class OptionError (OptParseError):
    """
    Raised if an Option instance is created with invalid or
    inconsistent arguments.
    """

    def __init__(self, msg, option):
        self.msg = msg
        self.option_id = str(option)

    def __str__(self):
        if self.option_id:
            return "option %s: %s" % (self.option_id, self.msg)
        else:
            return self.msg

class OptionConflictError (OptionError):
    """
    Raised if conflicting options are added to an OptionParser.
    """

class OptionValueError (OptParseError):
    """
    Raised if an invalid option value is encountered on the command
    line.
    """

class BadOptionError (OptParseError):
    """
    Raised if an invalid option is seen on the command line.
    """
    def __init__(self, opt_str):
        self.opt_str = opt_str

    def __str__(self):
        return _("no such option: %s") % self.opt_str

class AmbiguousOptionError (BadOptionError):
    """
    Raised if an ambiguous option is seen on the command line.
    """
    def __init__(self, opt_str, possibilities):
        BadOptionError.__init__(self, opt_str)
        self.possibilities = possibilities

    def __str__(self):
        return (_("ambiguous option: %s (%s?)")
                % (self.opt_str, ", ".join(self.possibilities)))


class HelpFormatter:

    """
    Abstract base class for formatting option help.  OptionParser
    instances should use one of the HelpFormatter subclasses for
    formatting help; by default IndentedHelpFormatter is used.

    Instance attributes:
      parser : OptionParser
        the controlling OptionParser instance
      indent_increment : int
        the number of columns to indent per nesting level
      max_help_position : int
        the maximum starting column for option help text
      help_position : int
        the calculated starting column for option help text;
        initially the same as the maximum
      width : int
        total number of columns for output (pass None to constructor for
        this value to be taken from the $COLUMNS environment variable)
      level : int
        current indentation level
      current_indent : int
        current indentation level (in columns)
      help_width : int
        number of columns available for option help text (calculated)
      default_tag : str
        text to replace with each option's default value, "%default"
        by default.  Set to false value to disable default value expansion.
      option_strings : { Option : str }
        maps Option instances to the snippet of help text explaining
        the syntax of that option, e.g. "-h, --help" or
        "-fFILE, --file=FILE"
      _short_opt_fmt : str
        format string controlling how short options with values are
        printed in help text.  Must be either "%s%s" ("-fFILE") or
        "%s %s" ("-f FILE"), because those are the two syntaxes that
        Optik supports.
      _long_opt_fmt : str
        similar but for long options; must be either "%s %s" ("--file FILE")
        or "%s=%s" ("--file=FILE").
    """

    NO_DEFAULT_VALUE = "none"

    def __init__(self,
                 indent_increment,
                 max_help_position,
                 width,
                 short_first):
        self.parser = None
        self.indent_increment = indent_increment
        self.help_position = self.max_help_position = max_help_position
        if width is None:
            try:
                width = int(os.environ['COLUMNS'])
            except (KeyError, ValueError):
                width = 80
            width -= 2
        self.width = width
        self.current_indent = 0
        self.level = 0
        self.help_width = None          # computed later
        self.short_first = short_first
        self.default_tag = "%default"
        self.option_strings = {}
        self._short_opt_fmt = "%s %s"
        self._long_opt_fmt = "%s=%s"

    def set_parser(self, parser):
        self.parser = parser

    def set_short_opt_delimiter(self, delim):
        if delim not in ("", " "):
            raise ValueError(
                "invalid metavar delimiter for short options: %r" % delim)
        self._short_opt_fmt = "%s" + delim + "%s"

    def set_long_opt_delimiter(self, delim):
        if delim not in ("=", " "):
            raise ValueError(
                "invalid metavar delimiter for long options: %r" % delim)
        self._long_opt_fmt = "%s" + delim + "%s"

    def indent(self):
        self.current_indent += self.indent_increment
        self.level += 1

    def dedent(self):
        self.current_indent -= self.indent_increment
        assert self.current_indent >= 0, "Indent decreased below 0."
        self.level -= 1

    def format_usage(self, usage):
        raise NotImplementedError, "subclasses must implement"

    def format_heading(self, heading):
        