Unicode block - Revision history

Rabbit8331821821763Rabbit: /* Notes */

2025-06-06T08:04:04Z

Notes

← Previous revision		Revision as of 08:04, 6 June 2025
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	\| [[Tibetan script\|Tibetan]]		\| [[Tibetan script\|Tibetan]]
	\|-		\|-
			\| U+3400..U+3D2D
	\| U+3400..U+3D2D{{Efn\|This block's boundaries were (unusually) not aligned to multiples of 16.\|group=note}}
	\| [[Hangul (obsolete Unicode block)\|Hangul]]<ref name="unicode1.1blocks">{{cite web \|url=https://www.unicode.org/versions/Unicode1.1.0/appE.pdf \|title=Appendix E: Block Names \|work=The Unicode Standard \|version=Version 1.1 \|publisher=[[Unicode Consortium]]}}</ref>		\| [[Hangul (obsolete Unicode block)\|Hangul]]<ref name="unicode1.1blocks">{{cite web \|url=https://www.unicode.org/versions/Unicode1.1.0/appE.pdf \|title=Appendix E: Block Names \|work=The Unicode Standard \|version=Version 1.1 \|publisher=[[Unicode Consortium]]}}</ref>
	\| 1.0.0		\| 1.0.0
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	\| rowspan="3" \| [[Hangul]]		\| rowspan="3" \| [[Hangul]]
	\|-		\|-
			\| U+3D2E..U+44B7
	\| U+3D2E..U+44B7{{Efn\|This block's boundaries were (unusually) not aligned to multiples of 16.\|group=note}}
	\| [[Hangul (obsolete Unicode block)\|Hangul Supplementary-A]]<ref name="unicode1.1blocks"/>		\| [[Hangul (obsolete Unicode block)\|Hangul Supplementary-A]]<ref name="unicode1.1blocks"/>
	\| rowspan=2 \| 1.1		\| rowspan=2 \| 1.1
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	\| 1930		\| 1930
	\|-		\|-
			\| U+44B8..U+4DFF
	\| U+44B8..U+4DFF{{Efn\|This block's boundaries were (unusually) not aligned to multiples of 16.\|group=note}}
	\| [[Hangul (obsolete Unicode block)\|Hangul Supplementary-B]]<ref name="unicode1.1blocks"/>		\| [[Hangul (obsolete Unicode block)\|Hangul Supplementary-B]]<ref name="unicode1.1blocks"/>
	\| [[CJK Unified Ideographs Extension A]] and [[Yijing Hexagram Symbols]]		\| [[CJK Unified Ideographs Extension A]] and [[Yijing Hexagram Symbols]]
Line 82:		Line 82:
	\| 2376		\| 2376
	\|}		\|}

	== Notes ==
	<references group="note" />

	== References ==		== References ==

Rabbit8331821821763Rabbit: Added notes.

2025-06-06T07:58:15Z

Added notes.

← Previous revision		Revision as of 07:58, 6 June 2025
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	\| [[Tibetan script\|Tibetan]]		\| [[Tibetan script\|Tibetan]]
	\|-		\|-
	\| U+3400..U+3D2D{{~~Cnote~~\|~~Block~~ ~~boundaries not aligned to multiples of 16\|The~~ boundaries ~~of these blocks~~ were (unusually) not aligned to multiples of 16.}}		\| U+3400..U+3D2D{{Efn\|This block's boundaries were (unusually) not aligned to multiples of 16.\|group=note}}
	\| [[Hangul (obsolete Unicode block)\|Hangul]]<ref name="unicode1.1blocks">{{cite web \|url=https://www.unicode.org/versions/Unicode1.1.0/appE.pdf \|title=Appendix E: Block Names \|work=The Unicode Standard \|version=Version 1.1 \|publisher=[[Unicode Consortium]]}}</ref>		\| [[Hangul (obsolete Unicode block)\|Hangul]]<ref name="unicode1.1blocks">{{cite web \|url=https://www.unicode.org/versions/Unicode1.1.0/appE.pdf \|title=Appendix E: Block Names \|work=The Unicode Standard \|version=Version 1.1 \|publisher=[[Unicode Consortium]]}}</ref>
	\| 1.0.0		\| 1.0.0
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	\| rowspan="3" \| [[Hangul]]		\| rowspan="3" \| [[Hangul]]
	\|-		\|-
	\| U+3D2E..U+44B7{{~~Cnote~~\|~~Block~~ ~~boundaries not aligned to multiples of 16\|The~~ boundaries ~~of these blocks~~ were (unusually) not aligned to multiples of 16.}}		\| U+3D2E..U+44B7{{Efn\|This block's boundaries were (unusually) not aligned to multiples of 16.\|group=note}}
	\| [[Hangul (obsolete Unicode block)\|Hangul Supplementary-A]]<ref name="unicode1.1blocks"/>		\| [[Hangul (obsolete Unicode block)\|Hangul Supplementary-A]]<ref name="unicode1.1blocks"/>
	\| rowspan=2 \| 1.1		\| rowspan=2 \| 1.1
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	\| 1930		\| 1930
	\|-		\|-
	\| U+44B8..U+4DFF{{~~Cnote~~\|~~Block~~ ~~boundaries not aligned to multiples of 16\|The~~ boundaries ~~of these blocks~~ were (unusually) not aligned to multiples of 16.}}		\| U+44B8..U+4DFF{{Efn\|This block's boundaries were (unusually) not aligned to multiples of 16.\|group=note}}
	\| [[Hangul (obsolete Unicode block)\|Hangul Supplementary-B]]<ref name="unicode1.1blocks"/>		\| [[Hangul (obsolete Unicode block)\|Hangul Supplementary-B]]<ref name="unicode1.1blocks"/>
	\| [[CJK Unified Ideographs Extension A]] and [[Yijing Hexagram Symbols]]		\| [[CJK Unified Ideographs Extension A]] and [[Yijing Hexagram Symbols]]
Line 82:		Line 82:
	\| 2376		\| 2376
	\|}		\|}

			== Notes ==
			<references group="note" />

	== References ==		== References ==

Rabbit8331821821763Rabbit at 07:49, 6 June 2025

2025-06-06T07:49:33Z

← Previous revision		Revision as of 07:49, 6 June 2025
Line 6:		Line 6:

	== Design and implementation ==		== Design and implementation ==
	Unicode blocks are identified by unique names, which use only ASCII characters and are usually descriptive of the nature of the symbols, in [[English language\|English]]; such as "Tibetan" or "Supplemental Arrows-A". (When comparing block names, one is supposed to equate uppercase with lowercase letters, and ignore any whitespace, hyphens, and underbars; so the last name is equivalent to "supplemental_arrows_a" and "SUPPLEMENTALARROWSA".<ref name=uniblocks>{{Cite web\|url=https://www.unicode.org/Public/UNIDATA/Blocks.txt\|title=Unicode Blocks data file, Unicode version 15.1\|publisher=Unicode Consortium\|access-date=2023-09-12}}</ref>		Unicode blocks are identified by unique names, which use only ASCII characters and are usually descriptive of the nature of the symbols, in [[English language\|English]]; such as "Tibetan" or "Supplemental Arrows-A". (When comparing block names, one is supposed to equate uppercase with lowercase letters, and ignore any whitespace, hyphens, and underbars; so the last name is equivalent to "supplemental_arrows_a", "SupplementalArrowsA" and "SUPPLEMENTALARROWSA".<ref name=uniblocks>{{Cite web\|url=https://www.unicode.org/Public/UNIDATA/Blocks.txt\|title=Unicode Blocks data file, Unicode version 15.1\|publisher=Unicode Consortium\|access-date=2023-09-12}}</ref>

	Blocks are [[intersection (set theory)\|pairwise disjoint]]; that is, they do not overlap. The starting code point and the size (number of code points) of each block are always multiples of 16; therefore, in the [[hexadecimal]] notation, the starting (smallest) point is U+''xxx''0 and the ending (largest) point is U+''yyy''F, where ''xxx'' and ''yyy'' are three or more hexadecimal digits. (These constraints are intended to simplify the display of glyphs in Unicode Consortium documents, as tables with 16 rows labeled with the last hexadecimal digit of the code point.<ref name=uniblocks/>) The size of a block may range from the minimum of 16 to a maximum of 65,536 code points.		Blocks are [[intersection (set theory)\|pairwise disjoint]]; that is, they do not overlap. The starting code point and the size (number of code points) of each block are always multiples of 16; therefore, in the [[hexadecimal]] notation, the starting (smallest) point is U+''xxx''0 and the ending (largest) point is U+''yyy''F, where ''xxx'' and ''yyy'' are three or more hexadecimal digits. (These constraints are intended to simplify the display of glyphs in Unicode Consortium documents, as tables with 16 rows labeled with the last hexadecimal digit of the code point.<ref name=uniblocks/>) The size of a block may range from the minimum of 16 to a maximum of 65,536 code points.
Line 59:		Line 59:
	\| [[Tibetan script\|Tibetan]]		\| [[Tibetan script\|Tibetan]]
	\|-		\|-
			\| U+3400..U+3D2D{{Cnote\|Block boundaries not aligned to multiples of 16\|The boundaries of these blocks were (unusually) not aligned to multiples of 16.}}
	\| U+3400..U+3D2D
	\| [[Hangul (obsolete Unicode block)\|Hangul]]<ref name="unicode1.1blocks">{{cite web \|url=https://www.unicode.org/versions/Unicode1.1.0/appE.pdf \|title=Appendix E: Block Names \|work=The Unicode Standard \|version=Version 1.1 \|publisher=[[Unicode Consortium]]}}</ref>		\| [[Hangul (obsolete Unicode block)\|Hangul]]<ref name="unicode1.1blocks">{{cite web \|url=https://www.unicode.org/versions/Unicode1.1.0/appE.pdf \|title=Appendix E: Block Names \|work=The Unicode Standard \|version=Version 1.1 \|publisher=[[Unicode Consortium]]}}</ref>
	\| 1.0.0		\| 1.0.0
Line 69:		Line 69:
	\| rowspan="3" \| [[Hangul]]		\| rowspan="3" \| [[Hangul]]
	\|-		\|-
			\| U+3D2E..U+44B7{{Cnote\|Block boundaries not aligned to multiples of 16\|The boundaries of these blocks were (unusually) not aligned to multiples of 16.}}
	\| U+3D2E..U+44B7
	\| [[Hangul (obsolete Unicode block)\|Hangul Supplementary-A]]<ref name="unicode1.1blocks"/>		\| [[Hangul (obsolete Unicode block)\|Hangul Supplementary-A]]<ref name="unicode1.1blocks"/>
	\| rowspan=2 \| 1.1		\| rowspan=2 \| 1.1
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	\| 1930		\| 1930
	\|-		\|-
			\| U+44B8..U+4DFF{{Cnote\|Block boundaries not aligned to multiples of 16\|The boundaries of these blocks were (unusually) not aligned to multiples of 16.}}
	\| U+44B8..U+4DFF
	\| [[Hangul (obsolete Unicode block)\|Hangul Supplementary-B]]<ref name="unicode1.1blocks"/>		\| [[Hangul (obsolete Unicode block)\|Hangul Supplementary-B]]<ref name="unicode1.1blocks"/>
	\| [[CJK Unified Ideographs Extension A]] and [[Yijing Hexagram Symbols]]		\| [[CJK Unified Ideographs Extension A]] and [[Yijing Hexagram Symbols]]

24.172.204.130: I fixed a typo

2025-05-12T16:58:02Z

I fixed a typo

← Previous revision		Revision as of 16:58, 12 May 2025
Line 6:		Line 6:

	== Design and implementation ==		== Design and implementation ==
	Unicode blocks are identified by unique names, which use only ASCII characters and are usually descriptive of the nature of the symbols, in [[English language\|English]]; such as "Tibetan" or "Supplemental Arrows-A". (When comparing block names, one is supposed to equate uppercase with lowercase letters, and ignore any whitespace, hyphens, and underbars; so the last name is equivalent to "~~supplemental_arrows__a~~" and "SUPPLEMENTALARROWSA".<ref name=uniblocks>{{Cite web\|url=https://www.unicode.org/Public/UNIDATA/Blocks.txt\|title=Unicode Blocks data file, Unicode version 15.1\|publisher=Unicode Consortium\|access-date=2023-09-12}}</ref>		Unicode blocks are identified by unique names, which use only ASCII characters and are usually descriptive of the nature of the symbols, in [[English language\|English]]; such as "Tibetan" or "Supplemental Arrows-A". (When comparing block names, one is supposed to equate uppercase with lowercase letters, and ignore any whitespace, hyphens, and underbars; so the last name is equivalent to "supplemental_arrows_a" and "SUPPLEMENTALARROWSA".<ref name=uniblocks>{{Cite web\|url=https://www.unicode.org/Public/UNIDATA/Blocks.txt\|title=Unicode Blocks data file, Unicode version 15.1\|publisher=Unicode Consortium\|access-date=2023-09-12}}</ref>

	Blocks are [[intersection (set theory)\|pairwise disjoint]]; that is, they do not overlap. The starting code point and the size (number of code points) of each block are always multiples of 16; therefore, in the [[hexadecimal]] notation, the starting (smallest) point is U+''xxx''0 and the ending (largest) point is U+''yyy''F, where ''xxx'' and ''yyy'' are three or more hexadecimal digits. (These constraints are intended to simplify the display of glyphs in Unicode Consortium documents, as tables with 16 rows labeled with the last hexadecimal digit of the code point.<ref name=uniblocks/>) The size of a block may range from the minimum of 16 to a maximum of 65,536 code points.		Blocks are [[intersection (set theory)\|pairwise disjoint]]; that is, they do not overlap. The starting code point and the size (number of code points) of each block are always multiples of 16; therefore, in the [[hexadecimal]] notation, the starting (smallest) point is U+''xxx''0 and the ending (largest) point is U+''yyy''F, where ''xxx'' and ''yyy'' are three or more hexadecimal digits. (These constraints are intended to simplify the display of glyphs in Unicode Consortium documents, as tables with 16 rows labeled with the last hexadecimal digit of the code point.<ref name=uniblocks/>) The size of a block may range from the minimum of 16 to a maximum of 65,536 code points.

CompassNNE: Added Template:for| hatnote to Block Elements, even though it is already linked.

2025-04-24T14:35:20Z

Added Template:for hatnote to Block Elements, even though it is already linked.

← Previous revision		Revision as of 14:35, 24 April 2025
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	{{Short description\|Named range of Unicode code points}}		{{Short description\|Named range of Unicode code points}}
			{{for\|the specific group of square characters in the Unicode typeset\|Block Elements}}
	A '''Unicode block''' is one of several contiguous ranges of numeric character codes ([[code point]]s) of the [[Unicode]] character set that are defined by the [[Unicode Consortium]] for administrative and documentation purposes. Typically, proposals such as the addition of new glyphs are discussed and evaluated by considering the relevant block or blocks as a whole.		A '''Unicode block''' is one of several contiguous ranges of numeric character codes ([[code point]]s) of the [[Unicode]] character set that are defined by the [[Unicode Consortium]] for administrative and documentation purposes. Typically, proposals such as the addition of new glyphs are discussed and evaluated by considering the relevant block or blocks as a whole.

PEPSI697: Reverted 1 edit by 24.51.54.23 (talk): Non constructive edit

2024-12-01T10:10:29Z

Reverted 1 edit by 24.51.54.23 (talk): Non constructive edit

← Previous revision		Revision as of 10:10, 1 December 2024
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	{{Short description\|Named range of Unicode code points}}		{{Short description\|Named range of Unicode code points}}
	A '''~~Unimode~~ block''' is one of several contiguous ranges of numeric character codes ([[code point]]s) of the [[Unicode]] character set that are defined by the [[Unicode Consortium]] for administrative and documentation purposes. Typically, proposals such as the addition of new glyphs are discussed and evaluated by considering the relevant block or blocks as a whole.		A '''Unicode block''' is one of several contiguous ranges of numeric character codes ([[code point]]s) of the [[Unicode]] character set that are defined by the [[Unicode Consortium]] for administrative and documentation purposes. Typically, proposals such as the addition of new glyphs are discussed and evaluated by considering the relevant block or blocks as a whole.

	Each block is generally, but not always, meant to supply glyphs used by one or more specific languages, or in some general application area such as [[mathematics]], [[surveying]], decorative [[typesetting]], social forums, etc.		Each block is generally, but not always, meant to supply glyphs used by one or more specific languages, or in some general application area such as [[mathematics]], [[surveying]], decorative [[typesetting]], social forums, etc.

24.51.54.23 at 09:50, 1 December 2024

2024-12-01T09:50:22Z

← Previous revision		Revision as of 09:50, 1 December 2024
Line 1:		Line 1:
	{{Short description\|Named range of Unicode code points}}		{{Short description\|Named range of Unicode code points}}
	A '''~~Unicode~~ block''' is one of several contiguous ranges of numeric character codes ([[code point]]s) of the [[Unicode]] character set that are defined by the [[Unicode Consortium]] for administrative and documentation purposes. Typically, proposals such as the addition of new glyphs are discussed and evaluated by considering the relevant block or blocks as a whole.		A '''Unimode block''' is one of several contiguous ranges of numeric character codes ([[code point]]s) of the [[Unicode]] character set that are defined by the [[Unicode Consortium]] for administrative and documentation purposes. Typically, proposals such as the addition of new glyphs are discussed and evaluated by considering the relevant block or blocks as a whole.

	Each block is generally, but not always, meant to supply glyphs used by one or more specific languages, or in some general application area such as [[mathematics]], [[surveying]], decorative [[typesetting]], social forums, etc.		Each block is generally, but not always, meant to supply glyphs used by one or more specific languages, or in some general application area such as [[mathematics]], [[surveying]], decorative [[typesetting]], social forums, etc.

Drmccreedy: Unicode 16.0 release

2024-09-11T04:04:28Z

Unicode 16.0 release

← Previous revision		Revision as of 04:04, 11 September 2024
Line 21:		Line 21:

	== List of blocks ==		== List of blocks ==
	Unicode {{Unicode version\|version=15.1}} defines ~~328~~ blocks:<ref name=uniblocks/>		Unicode {{Unicode version\|version=16.0}} defines 338 blocks:<ref name=uniblocks/>
	* 164 in plane 0, the Basic Multilingual Plane (in table below: {{slink\|\|BMP}})		* 164 in plane 0, the Basic Multilingual Plane (in table below: {{slink\|\|BMP}})
	* ~~151~~ in plane 1, the Supplementary Multilingual Plane ({{slink\|\|SMP}})		* 161 in plane 1, the Supplementary Multilingual Plane ({{slink\|\|SMP}})
	* 7 in plane 2, the Supplementary Ideographic Plane ({{slink\|\|SIP}})		* 7 in plane 2, the Supplementary Ideographic Plane ({{slink\|\|SIP}})
	* 2 in plane 3, the Tertiary Ideographic Plane ({{slink\|\|TIP}})		* 2 in plane 3, the Tertiary Ideographic Plane ({{slink\|\|TIP}})

210.123.60.198: cannot edit Template:Infobox Unicode block, hence this edit

2024-02-18T23:47:00Z

cannot edit Template:Infobox Unicode block, hence this edit

← Previous revision		Revision as of 23:47, 18 February 2024
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	{{Unicode blocks\|state=uncollapsed}}		{{Unicode blocks\|state=uncollapsed}}

	== Moved blocks ==		== {{anchor\|Deleted blocks}}Moved blocks ==
	The Unicode Stability Policy requires that a character, once assigned, may not be moved or removed, although it may be deprecated. This applies to Unicode 2.0 and all subsequent versions.		The Unicode Stability Policy requires that a character, once assigned, may not be moved or removed, although it may be deprecated. This applies to Unicode 2.0 and all subsequent versions.

Bumm13: /* Design and implementation */ formatting fix

2024-01-15T23:17:08Z

Design and implementation: formatting fix

← Previous revision		Revision as of 23:17, 15 January 2024
Line 7:		Line 7:
	Unicode blocks are identified by unique names, which use only ASCII characters and are usually descriptive of the nature of the symbols, in [[English language\|English]]; such as "Tibetan" or "Supplemental Arrows-A". (When comparing block names, one is supposed to equate uppercase with lowercase letters, and ignore any whitespace, hyphens, and underbars; so the last name is equivalent to "supplemental_arrows__a" and "SUPPLEMENTALARROWSA".<ref name=uniblocks>{{Cite web\|url=https://www.unicode.org/Public/UNIDATA/Blocks.txt\|title=Unicode Blocks data file, Unicode version 15.1\|publisher=Unicode Consortium\|access-date=2023-09-12}}</ref>		Unicode blocks are identified by unique names, which use only ASCII characters and are usually descriptive of the nature of the symbols, in [[English language\|English]]; such as "Tibetan" or "Supplemental Arrows-A". (When comparing block names, one is supposed to equate uppercase with lowercase letters, and ignore any whitespace, hyphens, and underbars; so the last name is equivalent to "supplemental_arrows__a" and "SUPPLEMENTALARROWSA".<ref name=uniblocks>{{Cite web\|url=https://www.unicode.org/Public/UNIDATA/Blocks.txt\|title=Unicode Blocks data file, Unicode version 15.1\|publisher=Unicode Consortium\|access-date=2023-09-12}}</ref>

	Blocks are [[intersection (set theory)\|pairwise disjoint]]; that is, they do not overlap. The starting code point and the size (number of code points) of each block are always multiples of 16; therefore, in the [[hexadecimal ~~notation~~]], the starting (smallest) point is U+''xxx''0 and the ending (largest) point is U+''yyy''F, where ''xxx'' and ''yyy'' are three or more hexadecimal digits. (These constraints are intended to simplify the display of glyphs in Unicode Consortium documents, as tables with 16 rows labeled with the last hexadecimal digit of the code point.<ref name=uniblocks/>) The size of a block may range from the minimum of 16 to a maximum of 65,536 code points.		Blocks are [[intersection (set theory)\|pairwise disjoint]]; that is, they do not overlap. The starting code point and the size (number of code points) of each block are always multiples of 16; therefore, in the [[hexadecimal]] notation, the starting (smallest) point is U+''xxx''0 and the ending (largest) point is U+''yyy''F, where ''xxx'' and ''yyy'' are three or more hexadecimal digits. (These constraints are intended to simplify the display of glyphs in Unicode Consortium documents, as tables with 16 rows labeled with the last hexadecimal digit of the code point.<ref name=uniblocks/>) The size of a block may range from the minimum of 16 to a maximum of 65,536 code points.

	Every assigned code point has a glyph property called "Block", whose value is a character string naming the unique block that owns that point.<ref>{{Cite web \|title=Glossary \|url=https://www.unicode.org/glossary/#B \|access-date=2022-08-07 \|website=www.unicode.org}}</ref> However, a block may also contain unassigned code points, usually reserved for future additions of characters that "logically" should belong to that block. Code points not belonging to any of the named blocks, e.g. in the unassigned [[Plane (Unicode)\|planes]] 4–13, have the value block="No_Block".<ref name=uniblocks/>		Every assigned code point has a glyph property called "Block", whose value is a character string naming the unique block that owns that point.<ref>{{Cite web \|title=Glossary \|url=https://www.unicode.org/glossary/#B \|access-date=2022-08-07 \|website=www.unicode.org}}</ref> However, a block may also contain unassigned code points, usually reserved for future additions of characters that "logically" should belong to that block. Code points not belonging to any of the named blocks, e.g. in the unassigned [[Plane (Unicode)\|planes]] 4–13, have the value block="No_Block".<ref name=uniblocks/>

← Previous revision		Revision as of 04:04, 11 September 2024
Line 21:		Line 21:

	== List of blocks ==		== List of blocks ==
	Unicode {{Unicode version\|version=15.1}} defines ~~328~~ blocks:<ref name=uniblocks/>		Unicode {{Unicode version\|version=16.0}} defines 338 blocks:<ref name=uniblocks/>
	* 164 in plane 0, the Basic Multilingual Plane (in table below: {{slink\|\|BMP}})		* 164 in plane 0, the Basic Multilingual Plane (in table below: {{slink\|\|BMP}})
	* ~~151~~ in plane 1, the Supplementary Multilingual Plane ({{slink\|\|SMP}})		* 161 in plane 1, the Supplementary Multilingual Plane ({{slink\|\|SMP}})
	* 7 in plane 2, the Supplementary Ideographic Plane ({{slink\|\|SIP}})		* 7 in plane 2, the Supplementary Ideographic Plane ({{slink\|\|SIP}})
	* 2 in plane 3, the Tertiary Ideographic Plane ({{slink\|\|TIP}})		* 2 in plane 3, the Tertiary Ideographic Plane ({{slink\|\|TIP}})

← Previous revision		Revision as of 23:17, 15 January 2024
Line 7:		Line 7:
	Unicode blocks are identified by unique names, which use only ASCII characters and are usually descriptive of the nature of the symbols, in [[English language\|English]]; such as "Tibetan" or "Supplemental Arrows-A". (When comparing block names, one is supposed to equate uppercase with lowercase letters, and ignore any whitespace, hyphens, and underbars; so the last name is equivalent to "supplemental_arrows__a" and "SUPPLEMENTALARROWSA".<ref name=uniblocks>{{Cite web\|url=https://www.unicode.org/Public/UNIDATA/Blocks.txt\|title=Unicode Blocks data file, Unicode version 15.1\|publisher=Unicode Consortium\|access-date=2023-09-12}}</ref>		Unicode blocks are identified by unique names, which use only ASCII characters and are usually descriptive of the nature of the symbols, in [[English language\|English]]; such as "Tibetan" or "Supplemental Arrows-A". (When comparing block names, one is supposed to equate uppercase with lowercase letters, and ignore any whitespace, hyphens, and underbars; so the last name is equivalent to "supplemental_arrows__a" and "SUPPLEMENTALARROWSA".<ref name=uniblocks>{{Cite web\|url=https://www.unicode.org/Public/UNIDATA/Blocks.txt\|title=Unicode Blocks data file, Unicode version 15.1\|publisher=Unicode Consortium\|access-date=2023-09-12}}</ref>

	Blocks are [[intersection (set theory)\|pairwise disjoint]]; that is, they do not overlap. The starting code point and the size (number of code points) of each block are always multiples of 16; therefore, in the [[hexadecimal ~~notation~~]], the starting (smallest) point is U+''xxx''0 and the ending (largest) point is U+''yyy''F, where ''xxx'' and ''yyy'' are three or more hexadecimal digits. (These constraints are intended to simplify the display of glyphs in Unicode Consortium documents, as tables with 16 rows labeled with the last hexadecimal digit of the code point.<ref name=uniblocks/>) The size of a block may range from the minimum of 16 to a maximum of 65,536 code points.		Blocks are [[intersection (set theory)\|pairwise disjoint]]; that is, they do not overlap. The starting code point and the size (number of code points) of each block are always multiples of 16; therefore, in the [[hexadecimal]] notation, the starting (smallest) point is U+''xxx''0 and the ending (largest) point is U+''yyy''F, where ''xxx'' and ''yyy'' are three or more hexadecimal digits. (These constraints are intended to simplify the display of glyphs in Unicode Consortium documents, as tables with 16 rows labeled with the last hexadecimal digit of the code point.<ref name=uniblocks/>) The size of a block may range from the minimum of 16 to a maximum of 65,536 code points.

	Every assigned code point has a glyph property called "Block", whose value is a character string naming the unique block that owns that point.<ref>{{Cite web \|title=Glossary \|url=https://www.unicode.org/glossary/#B \|access-date=2022-08-07 \|website=www.unicode.org}}</ref> However, a block may also contain unassigned code points, usually reserved for future additions of characters that "logically" should belong to that block. Code points not belonging to any of the named blocks, e.g. in the unassigned [[Plane (Unicode)\|planes]] 4–13, have the value block="No_Block".<ref name=uniblocks/>		Every assigned code point has a glyph property called "Block", whose value is a character string naming the unique block that owns that point.<ref>{{Cite web \|title=Glossary \|url=https://www.unicode.org/glossary/#B \|access-date=2022-08-07 \|website=www.unicode.org}}</ref> However, a block may also contain unassigned code points, usually reserved for future additions of characters that "logically" should belong to that block. Code points not belonging to any of the named blocks, e.g. in the unassigned [[Plane (Unicode)\|planes]] 4–13, have the value block="No_Block".<ref name=uniblocks/>