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112 lines
2.4 KiB
112 lines
2.4 KiB
#copyright openpyxl 2010-2018
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"""
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Excel specific descriptors
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"""
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from openpyxl.xml.constants import REL_NS
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from openpyxl.compat import safe_string
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from openpyxl.xml.functions import Element
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from . import (
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MatchPattern,
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MinMax,
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Integer,
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String,
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Sequence,
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)
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from .serialisable import Serialisable
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class HexBinary(MatchPattern):
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pattern = "[0-9a-fA-F]+$"
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class UniversalMeasure(MatchPattern):
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pattern = r"[0-9]+(\.[0-9]+)?(mm|cm|in|pt|pc|pi)"
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class TextPoint(MinMax):
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"""
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Size in hundredths of points.
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In theory other units of measurement can be used but these are unbounded
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"""
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expected_type = int
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min = -400000
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max = 400000
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Coordinate = Integer
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class Percentage(MinMax):
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pattern = r"((100)|([0-9][0-9]?))(\.[0-9][0-9]?)?%" # strict
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min = -1000000
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max = 1000000
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def __set__(self, instance, value):
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if isinstance(value, str) and "%" in value:
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value = value.replace("%", "")
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value = int(float(value) * 1000)
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super(Percentage, self).__set__(instance, value)
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class Extension(Serialisable):
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uri = String()
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def __init__(self,
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uri=None,
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):
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self.uri = uri
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class ExtensionList(Serialisable):
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ext = Sequence(expected_type=Extension)
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def __init__(self,
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ext=(),
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):
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self.ext = ext
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class Relation(String):
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namespace = REL_NS
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allow_none = True
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class Base64Binary(MatchPattern):
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# http://www.w3.org/TR/xmlschema11-2/#nt-Base64Binary
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pattern = "^(?:[A-Za-z0-9+/]{4})*(?:[A-Za-z0-9+/]{2}==|[A-Za-z0-9+/]{3}=|[A-Za-z0-9+/]{4})$"
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class Guid(MatchPattern):
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# https://msdn.microsoft.com/en-us/library/dd946381(v=office.12).aspx
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pattern = r"{[0-9A-F]{8}-[0-9A-F]{4}-[0-9A-F]{4}-[0-9A-F]{4}-[0-9A-F]{12}\}"
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class CellRange(MatchPattern):
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pattern = r"^[$]?([A-Za-z]{1,3})[$]?(\d+)(:[$]?([A-Za-z]{1,3})[$]?(\d+)?)?$|^[A-Za-z]{1,3}:[A-Za-z]{1,3}$"
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allow_none = True
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def __set__(self, instance, value):
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if value is not None:
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value = value.upper()
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super(CellRange, self).__set__(instance, value)
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def _explicit_none(tagname, value, namespace=None):
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"""
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Override serialisation because explicit none required
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"""
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if namespace is not None:
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tagname = "{%s}%s" % (namespace, tagname)
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return Element(tagname, val=safe_string(value))
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