configobj.InterpolationEngine

Class InterpolationEngine

object --+ | InterpolationEngine

A helper class to help perform string interpolation.

This class is an abstract base class; its descendants perform the actual work.

Instance Methods

[hide private]

__init__(self, section)
x.__init__(...) initializes x; see help(type(x)) for signature

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interpolate(self, key, value)

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_fetch(self, key)
Helper function to fetch values from owning section.

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_parse_match(self, match)
Implementation-dependent helper function.

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Inherited from object: __delattr__, __format__, __getattribute__, __hash__, __new__, __reduce__, __reduce_ex__, __repr__, __setattr__, __sizeof__, __str__, __subclasshook__

Class Variables

[hide private]

_KEYCRE = re.compile(r'%$([^$]*)\)s')

_cookie = '%'

Properties

[hide private]

Inherited from object: __class__

init(self, section)
(Constructor)

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x.__init__(...) initializes x; see help(type(x)) for signature

Overrides: object.__init__: (inherited documentation)

_fetch(self, key)

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Helper function to fetch values from owning section.

Returns a 2-tuple: the value, and the section where it was found.

_parse_match(self, match)

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Implementation-dependent helper function.

Will be passed a match object corresponding to the interpolation key we just found (e.g., "%(foo)s" or "$foo"). Should look up that key in the appropriate config file section (using the ``_fetch()`` helper function) and return a 3-tuple: (key, value, section)

``key`` is the name of the key we're looking for ``value`` is the value found for that key ``section`` is a reference to the section where it was found

``key`` and ``section`` should be None if no further interpolation should be performed on the resulting value (e.g., if we interpolated "$$" and returned "$").

Class InterpolationEngine

__init__(self, section) (Constructor)

_fetch(self, key)

_parse_match(self, match)

init(self, section)
(Constructor)