a string without CR or TAB characters
a normalizedString without leading or trailing or multiple internal blanks
en-US
a-sequeunce:of.XML_NameChar_characters
one or more NMTOKEN items separated with single spaces
A_letter_underscore_or_colon_optionally_followed_by_NameChar_characters
a_Name_without_colons
an_NCName_for_ID_attribute
an_NCName_for_ID_attribute
an_NCName_for_ID_attribute an_NCName_for_ID_attribute
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-92233720368547758089223372036854775808
9223372036854775807
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0
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92233720368547758079223372036854775807
0
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92233720368547758079223372036854775807
1