Package pyxb :: Package utils :: Module unicode :: Class CodePointSet

Class CodePointSet

object --+
         |
        CodePointSet

Represent a set of Unicode code points.

Each code point is an integral value between 0 and 0x10FFFF. This class is used to represent a set of code points in a manner suitable for use as regular expression character sets.

Instance Methods

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__cmp__(self, other)
Equality is delegated to the codepoints list.

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

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__mutate(self, value, do_add)

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__unichr(self, code_point)

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_codepoints(self)
For testing purrposes only, access to the codepoints internal representation.

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add(self, value)
Add the given value to the code point set.

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asPattern(self, with_brackets=True)
Return the code point set as Unicode regular expression character group consisting of a sequence of characters or character ranges.

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asSingleCharacter(self)
If this set represents a single character, return it as its unicode string value.

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asTuples(self)
Return the codepoints as tuples denoting the ranges that are in the set.

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extend(self, values)
Add multiple values to a code point set.

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negate(self)
Return an instance that represents the inverse of this set.

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subtract(self, value)
Remove the given value from the code point set.

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

Class Variables

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MaxCodePoint = 65535

MaxShortCodePoint = 65535

__NotXMLChar_set = frozenset(['-', '[', ']'])

__codepoints = None
hash(x)

Properties

[hide private]

Inherited from object: __class__

Method Details

[hide private]

init(self, args)
(Constructor)*

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

Overrides: object.__init__: (inherited documentation)

add(self, value)

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Add the given value to the code point set.

Parameters:

value - An integral value denoting a code point, or a tuple (s,e) denoting the start and end (inclusive) code points in a range.

Returns:

self

asPattern(self, with_brackets=True)

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Return the code point set as Unicode regular expression character group consisting of a sequence of characters or character ranges.

Parameters:

with_brackets - If True (default), square brackets are added to enclose the returned character group.

asTuples(self)

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Return the codepoints as tuples denoting the ranges that are in the set.

Each tuple (s, e) indicates that the code points from s (inclusive) to e) (inclusive) are in the set.

extend(self, values)

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Add multiple values to a code point set.

Parameters:

values - Either a CodePointSet instance, or an iterable whose members are valid parameters to add.

Returns:

self

subtract(self, value)

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Remove the given value from the code point set.

Parameters:

value - An integral value denoting a code point, or a tuple (s,e) denoting the start and end (inclusive) code points in a range, or a CodePointSet.

Returns:

self

Class CodePointSet

__init__(self, *args) (Constructor)

add(self, value)

asPattern(self, with_brackets=True)

asTuples(self)

extend(self, values)

subtract(self, value)

init(self, args)
(Constructor)*