79 lines
4.2 KiB
Python
79 lines
4.2 KiB
Python
# Copyright 2021 Behdad Esfahbod. All Rights Reserved.
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def is_Default_Ignorable(u):
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# http://www.unicode.org/reports/tr44/#Default_Ignorable_Code_Point
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#
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# TODO Move me to unicodedata module and autogenerate.
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#
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# Unicode 14.0:
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# $ grep '; Default_Ignorable_Code_Point ' DerivedCoreProperties.txt | sed 's/;.*#/#/'
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# 00AD # Cf SOFT HYPHEN
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# 034F # Mn COMBINING GRAPHEME JOINER
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# 061C # Cf ARABIC LETTER MARK
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# 115F..1160 # Lo [2] HANGUL CHOSEONG FILLER..HANGUL JUNGSEONG FILLER
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# 17B4..17B5 # Mn [2] KHMER VOWEL INHERENT AQ..KHMER VOWEL INHERENT AA
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# 180B..180D # Mn [3] MONGOLIAN FREE VARIATION SELECTOR ONE..MONGOLIAN FREE VARIATION SELECTOR THREE
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# 180E # Cf MONGOLIAN VOWEL SEPARATOR
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# 180F # Mn MONGOLIAN FREE VARIATION SELECTOR FOUR
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# 200B..200F # Cf [5] ZERO WIDTH SPACE..RIGHT-TO-LEFT MARK
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# 202A..202E # Cf [5] LEFT-TO-RIGHT EMBEDDING..RIGHT-TO-LEFT OVERRIDE
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# 2060..2064 # Cf [5] WORD JOINER..INVISIBLE PLUS
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# 2065 # Cn <reserved-2065>
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# 2066..206F # Cf [10] LEFT-TO-RIGHT ISOLATE..NOMINAL DIGIT SHAPES
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# 3164 # Lo HANGUL FILLER
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# FE00..FE0F # Mn [16] VARIATION SELECTOR-1..VARIATION SELECTOR-16
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# FEFF # Cf ZERO WIDTH NO-BREAK SPACE
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# FFA0 # Lo HALFWIDTH HANGUL FILLER
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# FFF0..FFF8 # Cn [9] <reserved-FFF0>..<reserved-FFF8>
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# 1BCA0..1BCA3 # Cf [4] SHORTHAND FORMAT LETTER OVERLAP..SHORTHAND FORMAT UP STEP
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# 1D173..1D17A # Cf [8] MUSICAL SYMBOL BEGIN BEAM..MUSICAL SYMBOL END PHRASE
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# E0000 # Cn <reserved-E0000>
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# E0001 # Cf LANGUAGE TAG
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# E0002..E001F # Cn [30] <reserved-E0002>..<reserved-E001F>
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# E0020..E007F # Cf [96] TAG SPACE..CANCEL TAG
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# E0080..E00FF # Cn [128] <reserved-E0080>..<reserved-E00FF>
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# E0100..E01EF # Mn [240] VARIATION SELECTOR-17..VARIATION SELECTOR-256
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# E01F0..E0FFF # Cn [3600] <reserved-E01F0>..<reserved-E0FFF>
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return (
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u == 0x00AD
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or u == 0x034F # Cf SOFT HYPHEN
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or u == 0x061C # Mn COMBINING GRAPHEME JOINER
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or 0x115F <= u <= 0x1160 # Cf ARABIC LETTER MARK
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or 0x17B4 # Lo [2] HANGUL CHOSEONG FILLER..HANGUL JUNGSEONG FILLER
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<= u
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<= 0x17B5
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or 0x180B # Mn [2] KHMER VOWEL INHERENT AQ..KHMER VOWEL INHERENT AA
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<= u
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<= 0x180D
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or u # Mn [3] MONGOLIAN FREE VARIATION SELECTOR ONE..MONGOLIAN FREE VARIATION SELECTOR THREE
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== 0x180E
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or u == 0x180F # Cf MONGOLIAN VOWEL SEPARATOR
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or 0x200B <= u <= 0x200F # Mn MONGOLIAN FREE VARIATION SELECTOR FOUR
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or 0x202A <= u <= 0x202E # Cf [5] ZERO WIDTH SPACE..RIGHT-TO-LEFT MARK
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or 0x2060 # Cf [5] LEFT-TO-RIGHT EMBEDDING..RIGHT-TO-LEFT OVERRIDE
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<= u
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<= 0x2064
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or u == 0x2065 # Cf [5] WORD JOINER..INVISIBLE PLUS
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or 0x2066 <= u <= 0x206F # Cn <reserved-2065>
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or u == 0x3164 # Cf [10] LEFT-TO-RIGHT ISOLATE..NOMINAL DIGIT SHAPES
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or 0xFE00 <= u <= 0xFE0F # Lo HANGUL FILLER
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or u == 0xFEFF # Mn [16] VARIATION SELECTOR-1..VARIATION SELECTOR-16
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or u == 0xFFA0 # Cf ZERO WIDTH NO-BREAK SPACE
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or 0xFFF0 <= u <= 0xFFF8 # Lo HALFWIDTH HANGUL FILLER
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or 0x1BCA0 <= u <= 0x1BCA3 # Cn [9] <reserved-FFF0>..<reserved-FFF8>
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or 0x1D173 # Cf [4] SHORTHAND FORMAT LETTER OVERLAP..SHORTHAND FORMAT UP STEP
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<= u
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<= 0x1D17A
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or u == 0xE0000 # Cf [8] MUSICAL SYMBOL BEGIN BEAM..MUSICAL SYMBOL END PHRASE
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or u == 0xE0001 # Cn <reserved-E0000>
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or 0xE0002 <= u <= 0xE001F # Cf LANGUAGE TAG
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or 0xE0020 <= u <= 0xE007F # Cn [30] <reserved-E0002>..<reserved-E001F>
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or 0xE0080 <= u <= 0xE00FF # Cf [96] TAG SPACE..CANCEL TAG
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or 0xE0100 <= u <= 0xE01EF # Cn [128] <reserved-E0080>..<reserved-E00FF>
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or 0xE01F0 # Mn [240] VARIATION SELECTOR-17..VARIATION SELECTOR-256
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<= u
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<= 0xE0FFF
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or False # Cn [3600] <reserved-E01F0>..<reserved-E0FFF>
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)
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