View source for Vertical bar

{{Short description|Typographic symbol ( {{!}} )}}
{{other uses}}
{{Infobox symbol |mark=&#124;
|unicode={{unichar|007C|VERTICAL LINE|html=}}
|see also={{unichar|00A6|Broken bar|nlink=#Solid vertical bar versus broken bar |html=}}<br />
{{unichar|2016|Double vertical line|nlink=#Mathematics |html=}}<br />
{{unichar|2223|Divides|nlink=Divisibility}}
}}

The '''vertical bar''', {{char|&#124;}}, is a [[glyph]] with various uses in [[mathematics]], [[computing]], and [[typography]]. It has many names, often related to particular meanings: [[Sheffer stroke]] (in [[mathematical logic|logic]]), '''pipe''', '''bar''', '''or''' (literally, the word "or"), '''vbar''', and others.<ref>{{cite web |url=http://www.catb.org/jargon/html/A/ASCII.html | title=ASCII | last=Raymond | first=Eric S |website=The Jargon File |url-status=live |archive-url=https://web.archive.org/web/20231030220315/http://www.catb.org/jargon/html/A/ASCII.html |archive-date= Oct 30, 2023 }}</ref>

==Usage==

===Mathematics<!--'Double vertical bar' and 'Propositional truncation' redirect here-->===
The vertical bar is used as a [[table of mathematical symbols|mathematical symbol]] in numerous ways.
If used as a pair of brackets, it suggests the notion of the word "size". These are:
* [[absolute value]]: <math>|x|</math>, read "the ''absolute value'' of ''x''"<ref name="Weisstein">{{Cite web|last=Weisstein|first=Eric W.|title=Single Bar|url=https://mathworld.wolfram.com/SingleBar.html|access-date=2020-08-24|website=Wolfram MathWorld|language=en}}</ref>
* [[cardinality]]: <math>|S|</math>, read "the ''cardinality'' of the [[set (mathematics)|set]] ''S''" or "the ''length'' of a [[String (computer science)|string]] ''S''"
* [[determinant]]: <math>|A|</math>, read "the ''determinant'' of the [[Matrix (mathematics)|matrix]] ''A''".<ref name="Weisstein" /> When the matrix entries are written out, the determinant is denoted by surrounding the matrix entries by vertical bars instead of the usual brackets or parentheses of the matrix, as in <math>\begin{vmatrix} a & b \\ c & d\end{vmatrix}</math>.
* [[Order (group theory)#Class equation|order]]: <math>|G|</math>, read "the ''order'' of the [[group (mathematics)|group]] ''G''", or <math>|g|</math>, "the ''order'' of the element <math>g \in G</math>"

Likewise, the vertical bar is also used singly in many different ways:
* [[conditional probability]]: <math>P(X|Y)</math>, read "the [[probability]] of ''X'' ''given'' ''Y''"
* [[distance]]: <math>P|ab</math>, denoting the shortest ''distance'' between point <math>P</math> to line <math>ab</math>, so line <math>P|ab</math> is perpendicular to line <math>ab</math>
* [[divisibility]]: <math>a \mid b</math>, read "''a'' ''divides'' ''b''" or "''a'' is a ''factor'' of ''b''", though Unicode also provides special 'divides' and 'does not divide' symbols ({{unichar|2223}} and {{unichar|2224}})<ref name="Weisstein" />
* [[Function (mathematics)|function]] evaluation: <math>f(x)|_{x=4}</math>, read "''f'' of ''x'', evaluated at ''x'' equals 4" (see [[b:LaTeX/Advanced Mathematics#Subscripts and superscripts|subscripts]] at Wikibooks)
* [[Restriction (mathematics)|restriction]]: <math>f|_{A}</math>, denoting the ''restriction'' of the function <math>f</math>, with a domain that is a superset of <math>A</math>, to just <math>A</math>
* [[set-builder notation]]: <math>\{x|x<2\}</math>, read "the set of ''x'' ''such that'' ''x'' is [[less than]] two". Often, a [[colon (punctuation)|colon]] ':' is used instead of a vertical bar
* the [[Sheffer stroke]] in [[logic]]: <math>a|b</math>, read "''a'' ''nand'' ''b''"
* [[subtraction]]: <math>f(x) \vert _a ^b</math>, read "''f(x)'' ''from'' ''a'' ''to'' ''b''", denoting <math>f(b) - f(a)</math>. Used in the context of a definite integral with variable ''x''.
* A vertical bar can be used to separate variables from fixed parameters in a function, for example <math>f(x|\mu,\sigma)</math>, or in the notation for [[elliptic integrals]].

The '''double vertical bar'''<!--boldface per WP:R#PLA-->, <math>\|</math>, is also employed in mathematics.
* [[Parallel (geometry)|parallelism]]: <math>AB \parallel CD</math>, read "the line <math>AB</math> ''is parallel to'' the line <math>CD</math>"
* [[Norm (mathematics)|norm]]: <math>\|A\|</math>, read "the ''norm'' (length, size, magnitude etc.) of the matrix <math>A</math>". The norm of a one-dimensional [[Vector space|vector]] is the absolute value and single bars are used.<ref>{{Cite web|last=Weisstein|first=Eric W.|title=Matrix Norm|url=https://mathworld.wolfram.com/MatrixNorm.html|access-date=2020-08-24|website=Wolfram MathWorld|language=en}}</ref>
* '''Propositional truncation'''<!--boldface per WP:R#PLA-->: (a [[Type theory|type]] former that truncates a type down to a [[proposition (logic)|mere proposition]] in [[homotopy type theory]]): for any <math>a : A</math> (read "term <math>a</math> of type <math> A</math>") we have <math>|a| : \left\| A \right\|</math><ref>{{cite book|author=Univalent Foundations Program|title=Homotopy Type Theory: Univalent Foundations of Mathematics (GitHub version)|year=2013|publisher=Institute for Advanced Study|url=https://hott.github.io/book/nightly/hott-a4-1075-g3c53219.pdf|page=108|access-date=2017-07-01|archive-date=2017-07-07|archive-url=https://web.archive.org/web/20170707022332/https://hott.github.io/book/nightly/hott-a4-1075-g3c53219.pdf|url-status=dead}}</ref> (here <math>|a|</math> reads "''[[Image (mathematics)|image]]'' of <math>a : A</math> in <math>\left\| A \right\|</math>" and <math>|a| : \left\| A \right\|</math> reads "''propositional truncation'' of <math display="inline">A</math>")<ref>{{cite book|author=Univalent Foundations Program|title=Homotopy Type Theory: Univalent Foundations of Mathematics (print version)|year=2013|publisher=Institute for Advanced Study|url=https://books.google.com/books?id=LkDUKMv3yp0C|page=450}}</ref>

In LaTeX [[TeX#math mode|mathematical mode]], the ASCII vertical bar produces a vertical line, and <code>\|</code> creates a double vertical line (<code>a | b \| c</code> is set as <math>a | b \| c</math>). This has different spacing from <code>\mid</code> and <code>\parallel</code>, which are [[relational operator]]s: <code>a \mid b \parallel c</code> is set as <math>a \mid b \parallel c</math>. See below about [[LaTeX]] in text mode.

=== Chemistry ===
In chemistry, the vertical line is used in [[cell notation]] of electrochemical cells.

Example,

Zn | Zn<sup>2+</sup> || Cu<sup>2+</sup> | Cu

Single vertical lines show components of the cell which do not mix, usually being in different phases. The double vertical line ( || ) is used to represent salt bridge; which is used to allow free moving ions to move.

===Physics===
The vertical bar is used in [[bra–ket notation]] in [[quantum physics]]. Examples:
* <math>|\psi\rangle</math>: the quantum physical state <math>\psi</math>
* <math>\langle\psi|</math>: the [[dual space|dual state]] corresponding to the state above
* <math>\langle\psi|\rho\rangle</math>: the [[inner product]] of states <math>\psi</math> and <math>\rho</math>
* [[Supergroup (physics)|Supergroups in physics]] are denoted ''G''(''N''|''M''), which reads "''G'', ''M'' vertical bar ''N''"; here ''G'' denotes any supergroup, ''M'' denotes the [[bosonic dimensions]], and ''N'' denotes the [[Grassmann dimensions]].<ref>Larus Thorlacius, Thordur Jonsson (eds.), ''M-Theory and Quantum Geometry'', Springer, 2012, p. 263.</ref>

===Computing===

==== Pipe ====
{{Main|Pipeline (Unix)}}

A [[pipe (Unix)|pipe]] is an [[inter-process communication]] mechanism originating in [[Unix]], which directs the output (standard out and, optionally, standard error) of one process to the input (standard in) of another. In this way, a series of commands can be "piped" together, giving users the ability to quickly perform complex multi-stage processing from the [[Command-line interface|command line]] or as part of a [[UNIX shell script|Unix shell script]] ("bash file"). In most [[Unix shell]]s (command interpreters), this is represented by the vertical bar character. For example:

<code> [[grep]] -i 'blair' filename.log | [[More (command)#Unix|more]] </code>

where the output from the <kbd>grep</kbd> process (all lines containing 'blair') is piped to the <kbd>more</kbd> process (which allows a command line user to read through results one page at a time).

The same "pipe" feature is also found in later versions of [[DOS]] and Microsoft Windows.

This usage has led to the character itself being called "pipe".

====Disjunction====
In many programming languages, the vertical bar is used to designate the [[Logical disjunction|logic operation ''or'']], either [[Bitwise operation|bitwise]] ''or'' or [[Boolean data type|logical]] ''or''.

Specifically, in [[C (programming language)|C]] and other languages following [[C syntax]] conventions, such as [[C++]], [[Perl]], [[Java (programming language)|Java]] and [[C Sharp (programming language)|C#]], <code>a | b</code> denotes a [[Bitwise operation#OR|bitwise ''or'']]; whereas a double vertical bar <code>a || b</code> denotes a ([[Minimal evaluation|short-circuited]]) [[logical disjunction|logical ''or'']]. Since the character was originally not available in all [[code page]]s and keyboard layouts, [[ANSI C]] can transcribe it in form of the [[C trigraph|trigraph]] <code>??!</code>, which, outside string literals, is equivalent to the <code>|</code> character.

In [[regular expression]] syntax, the vertical bar again indicates logical ''or'' ([[alternation (formal language theory)|alternation]]). For example: the Unix command <code>[[grep]] -E 'fu|bar'</code> matches lines containing 'fu' or 'bar'.

====Concatenation====
The double vertical bar operator "||" denotes [[string (computer science)|string]] [[concatenation]] in [[PL/I]], [[Rexx|REXX]], [[Object REXX|ooRexx]], standard [[ANSI SQL]], and theoretical computer science (particularly [[cryptography]]).

====Delimiter====
Although not as common as commas or tabs, the vertical bar can be used as a [[delimiter]] in a [[flat file]]. Examples of a [[pipe delimited|pipe-delimited]] standard data format are [[LEDES]] 1998B and [[HL7]]. It is frequently used because vertical bars are typically uncommon in the data itself.

Similarly, the vertical bar may see use as a delimiter for [[regular expression]] operations (e.g. in [[sed]]). This is useful when the regular expression contains instances of the more common forward slash (<code>/</code>) delimiter; using a vertical bar eliminates the need to escape all instances of the forward slash. However, this makes the bar unusable as the regular expression "alternative" operator.

====Backus–Naur form====
In [[Backus–Naur form]], an expression consists of sequences of symbols and/or sequences separated by '|', indicating a [[Alternation (formal language theory)|choice]], the whole being a possible substitution for the symbol on the left.
{{sxhl|2=bnf|1=<personal-name> ::= <name> {{!}} <initial>}}

====Concurrency operator====
In calculi of communicating processes (like [[pi-calculus]]), the vertical bar is used to indicate that processes execute in parallel.

====APL====
The pipe in [[APL (programming language)|APL]] is the modulo or ''residue'' function between two operands and the absolute value function next to one operand.

====List comprehensions====
{{Main|List comprehensions}}

The vertical bar is used for list comprehensions in some functional languages, e.g. [[Haskell (programming language)|Haskell]] and [[Erlang (programming language)|Erlang]]. Compare [[#Mathematics|set-builder notation]].

====Text markup====

The vertical bar is used as a special character in [[lightweight markup language]]s, notably [[MediaWiki]]'s [[Wikitext]] (in the templates and internal links).

In LaTeX text mode, the vertical bar produces an [[em dash]] (—). The <code>\textbar</code> command can be used to produce a vertical bar.

===Phonetics and orthography===
{{main|International Phonetic Alphabet#Brackets and transcription delimiters}}
In the [[Khoisan languages]] and the [[International Phonetic Alphabet]], the vertical bar is used to write the [[dental click]] ({{IPA|ǀ}}). A double vertical bar is used to write the [[alveolar lateral click]] ({{IPA|ǁ}}). Since these are technically letters, they have their own [[Unicode]] code points in the [[Latin Extended-B]] range: {{unichar|01C0}} and {{unichar|01C1}}.

Some [[Northwest Caucasian languages|Northwest]] and [[Northeast Caucasian languages]] written in the [[Cyrillic script]] have a vertical bar called [[palochka]] ({{langx|ru|палочка|translation=little stick}}), indicating the preceding consonant is an [[Ejective consonant|ejective]].

Longer single and double vertical bars are used to mark [[Prosody (linguistics)|prosodic]] boundaries in the IPA.

===Literature===
{{anchor|Punctuation|Period|Comma}}

In medieval European manuscripts, a single vertical bar was a common variant of the [[Slash (punctuation)|virgula]] {{char|[[/]]}} used as a [[comma]],<ref name=verg>{{cite dictionary |dictionary=Oxford English Dictionary |edition=Corrected reissue |entry=Virgule |date=1933 |publisher=Oxford University Press |page=[https://archive.org/details/the-oxford-english-dictionary-1933-all-volumes/The%20Oxford%20English%20Dictionary%20Volume%2012%20-%20Variant/page/n238/mode/1up?view=theater 235] |volume=XII}}.</ref> or [[caesura]] mark.<ref name=verg />

In [[Sanskrit]] and other [[Languages of India|Indian languages]], a single vertical mark, ।, called a [[danda]], has a similar function as a period (full stop). Two bars, ॥, (a 'double danda') is the equivalent of a [[pilcrow]] in marking the end of a [[stanza]], paragraph or section. The danda has its own Unicode code point, {{unichar|0964}}; as does the double danda: {{unichar|0965}}.

====Poetry====
{{anchor|Caesura}}<!--linked-->A double vertical bar {{angle bracket|{{!}}{{!}}}} or {{angle bracket|‖}}{{Citation needed|date=February 2025 |reason=Is this actually the right Unicode character to use? Or is only correct to use two regular vertical bars?}} is the standard ''[[caesura]] mark'' in English [[literary criticism]] and analysis. It marks the strong break or [[caesura]] common to many forms of [[poetry]], particularly [[Old English poetry|Old English verse]]. It is also traditionally used to mark the division between lines of verse printed as prose (the style preferred by [[Oxford University Press]]), though it is now often replaced by the [[forward slash]].{{citation needed|date=May 2024}}
{{anchor|Bible|Bibles|Biblical}}

====Notation====
In the [[Geneva Bible]] and early printings of the [[King James Version]], a double vertical bar is used to mark [[Marginalia|margin notes]] that contain an alternative translation from the original text. These margin notes always begin with the conjunction "Or". In later printings of the King James Version, the double vertical bar is irregularly used to mark any comment in the margins.

A double vertical bar symbol may be used to call out a [[footnote]]. (The traditional order of these symbols in English is [[Asterisk|*]], [[Dagger (mark)|†]], [[Dagger (mark)|‡]], [[Section sign|§]], ‖, [[Pilcrow|¶]], so its use is very rare; in modern usage, numbers and letters are preferred for [[note (typography)|endnotes and footnotes]].<ref>{{cite book |first=Robert |last=Bringhurst |date=2005 |title=The Elements of Typographic Style |edition=ver. 3.1 |location=Point Roberts, Washington |publisher=Hartley and Marks |pages=68–69 |quote=But beyond the&nbsp;... double dagger, this order is not familiar to most readers, and never was.}} </ref>)

====Music scoring====
{{main|Sheet music}}
In music, when writing chord sheets, single vertical bars associated with a colon (|: A / / / :|) represents the beginning and end of a section (e.g. Intro, Interlude, Verse, Chorus) of music.{{citation needed|date=May 2020}} Single bars can also represent the beginning and end of measures (|: A / / / | D / / / | E / / / :|). A double vertical bar associated with a colon can represent the repeat of a given section (||: A / / / :|| - play twice).{{citation needed|date=May 2020}}

==Encoding==

=== Solid vertical bar versus broken bar ===<!-- linked from an infobox in this article -->
[[Image:Dot printer ASCII0x7C+.png|320px|thumb|right|The code point 124 (7C [[hexadecimal]]) is occupied by a broken bar in a [[dot matrix printer]] of the late 1980s, which apparently lacks a solid vertical bar. See the [[:Image:Dot printer ASCII.png|full picture]].]]
Many early video terminals and [[dot-matrix printers]] rendered the vertical bar character as the [[allograph]] '''broken bar''' {{char|¦}}. This may have been to distinguish the character from the lower-case 'L' and the upper-case '{{serif|I}}' on these limited-resolution devices, and to make a vertical line of them look more like a horizontal line of dashes. It was also (briefly) part of the [[ASCII]] standard.

An initial draft for a 7-bit character set that was published by the X3.2 subcommittee for Coded Character Sets and Data Format on June 8, 1961, was the first to include the vertical bar in a standard set. The bar was intended to be used as the representation for the [[logical OR]] symbol.<ref name="evolutionchar">{{cite thesis |last=Fischer |first=Eric |date=2012 |title=The Evolution of Character Codes, 1874-1968 |publisher=Penn State University |citeseerx=10.1.1.96.678 |url=http://citeseerx.ist.psu.edu/viewdoc/download?doi=10.1.1.96.678&rep=rep1&type=pdf |access-date=July 10, 2020}}</ref> A subsequent draft on May 12, 1966, places the vertical bar in column 7 alongside regional entry codepoints, and formed the basis for the original draft proposal used by the [[International Standards Organisation]].<ref name="evolutionchar"/> This draft received opposition from the [[IBM]] user group [[SHARE_(computing)|SHARE]], with its chairman, H. W. Nelson, writing a letter to the [[American Standards Association]] titled "The Proposed revised American Standard Code for Information Interchange does NOT meet the needs of computer programmers!"; in this letter, he argues that no characters within the international subset designated at columns 2-5 of the character set would be able to adequately represent logical OR and [[Negation|logical NOT]] in languages such as IBM's [[PL/I]] universally on all platforms.<ref>H. W. Nelson, letter to Thomas B. Steel, June 8, 1966, Honeywell Inc. X3.2 Standards Subcommittee Records, 1961-1969 (CBI 67), Charles Babbage Institute, University of Minnesota, Minneapolis, box 1, folder 23.</ref> As a compromise, a requirement was introduced where the [[exclamation mark]] (!) and [[circumflex]] (^) would display as logical OR (|) and logical NOT (¬) respectively in use cases such as programming, while outside of these use cases they would represent their original typographic symbols:
{{Cquote
| quote = "It may be desirable to employ distinctive styling to facilitate their use for specific purposes as, for example, to stylize the graphics in code positions 2/1 and 5/14 to those frequently associated with logical OR ({{Pipe}}) and logical NOT (¬) respectively."
| source = X3.2 document X3.2/475<ref>X3.2 document X3.2/475, December 13, 1966, Honeywell Inc. X3.2 Standards Subcommittee Records, 1961-1969 (CBI 67), Charles Babbage Institute, University of Minnesota, Minneapolis, box 1, folder 22.</ref>
}}

The original vertical bar encoded at 0x7C in the original May 12, 1966 draft was then broken as {{char|¦}}, so it could not be confused with the unbroken logical OR. In the 1967 revision of ASCII, along with the equivalent ISO 464 code published the same year, the code point was defined to be a broken vertical bar, and the exclamation mark character was allowed to be rendered as a solid vertical bar.<ref name="Salste_2016" /><ref name="Korpela">{{cite web |title=Character histories - notes on some Ascii code positions |author-first=Jukka |author-last=Korpela |url=http://jkorpela.fi/latin1/ascii-hist.html |access-date=2020-05-31 |url-status=live |archive-url=https://web.archive.org/web/20200311174647/http://jkorpela.fi/latin1/ascii-hist.html |archive-date=2020-03-11}}</ref> However, the 1977 revision (ANSI X.3-1977) undid the changes made in the 1967 revision, enforcing that the circumflex could no longer be stylised as a logical NOT symbol, the exclamation mark likewise no longer allowing stylisation as a vertical bar, and defining the code point originally set to the broken bar as a solid vertical bar instead;<ref name="Salste_2016">{{cite web |title=7-bit character sets: Revisions of ASCII |author-first=Tuomas |author-last=Salste |publisher=Aivosto Oy |date=January 2016 |id={{URN|nbn|fi-fe201201011004}} |url=http://www.aivosto.com/vbtips/charsets-7bit.html#body |access-date=2016-06-13 |url-status=live |archive-url=https://web.archive.org/web/20160613145224/http://www.aivosto.com/vbtips/charsets-7bit.html#body |archive-date=2016-06-13}}</ref> the same changes were also reverted in ISO 646-1973 published four years prior.

Some variants of [[EBCDIC]] included both versions of the character as different code points. The broad implementation of the [[extended ASCII]] [[ISO/IEC 8859]] series in the 1990s also made a distinction between the two forms. This was preserved in Unicode as a separate character at {{unichar|00A6}} (the term "parted rule" is used sometimes in Unicode documentation). Some fonts draw the characters the same (both are solid vertical bars, or both are broken vertical bars).<ref>{{cite web|url=http://www.jimprice.com/jim-asc.shtml#extended|title=ASCII Chart: IBM PC Extended ASCII Display Characters|author=Jim Price|date=2010-05-24|access-date=2012-02-23}}</ref>{{failed verification|date=July 2020}}<!-- I saw personally the logical OR operator in C rendered as ЭЭ in KOI-7 environment, but it is a bit off-topic here. --Incnis Mrsi -->

The broken bar does not appear to have any clearly identified uses distinct from those of the vertical bar.<ref>{{cite web|url=https://jkorpela.fi/latin1/3.html#A6|title=Detailed descriptions of the characters|date=2006-09-20|author=Jukka "Yucca" Korpela|access-date=2012-02-23}}</ref> In non-computing use — for example in mathematics, physics and general typography — the broken bar is not an acceptable substitute for the vertical bar. In some dictionaries, the broken bar is used to mark stress that may be either primary or secondary: {{IPA|[¦ba]}} covers the pronunciations {{IPA|[ˈba]}} and {{IPA|[ˌba]}}.<ref>For example, {{MW|Balearic}}.</ref>

===Unicode code points===
These glyphs are encoded in Unicode as follows:
* {{unichar|007C|Vertical line|html=}} (single vertical line)
* {{unichar|00A6|Broken bar|html=}} (single broken line)
* {{unichar|2016|Double vertical line|html=}} (double vertical line ( <math>\|</math> ): used in pairs to indicate [[Norm (mathematics)|norm]])
* {{unichar|FF5C|Fullwidth vertical line|html=}} ([[Halfwidth and fullwidth forms|Fullwidth form]])
* {{unichar|FFE4|Fullwidth broken bar|html=}}
* {{unichar|2225|Parallel to|html=| nlink=Parallel (geometry)}}
* {{unichar|01C0|Latin letter dental click| html= |nlink=Click consonant}}
* {{unichar|01C1|Latin letter lateral click| html= |nlink=Click consonant}}
* {{unichar|2223|divides| html= |nlink=Divisor}}
* {{unichar|2502|Box drawings light vertical|nlink=Box-drawing characters|html=}} (and various other box drawing characters in the range U+2500 to U+257F)
* {{unichar|2758|Light vertical bar}}
* {{unichar|0964|Devanagari Danda|nlink=Danda|html=}}
* {{unichar|0965|Devanagari double Danda|nlink=Danda|html=}}

===Code pages and other historical encodings===
{| class="wikitable collapsible mw-collapsed"
!Code pages, ASCII, ISO/IEC, EBCDIC, Shift-JIS, etc.
!Vertical bar (<code><nowiki>|</nowiki></code>)
!Broken bar (<code>¦</code>)
|-
|[[ASCII]],<br />[[CP437]], [[CP667]], [[CP720]], [[CP737]], [[CP790]], [[CP819]], [[CP852]], [[CP855]], [[CP860]], [[CP861]], [[CP862]], [[CP865]], [[CP866]], [[CP867]], [[CP869]], [[CP872]], [[CP895]], [[Code page 932 (IBM)|CP932]], [[CP991]]
|rowspan=7|124 (7C[[hexadecimal|h]])
|none
|-
|[[CP775]]
|167 (A7h)
|-
|[[CP850]], [[CP857]], [[CP858]]
|221 (DDh)
|-
|[[CP863]]
|160 (A0h)
|-
|[[CP864]]
|219 (DBh)
|-
|[[ISO/IEC 8859-1]], [[ISO/IEC 8859-7|-7]], [[ISO/IEC 8859-8|-8]], [[ISO/IEC 8859-9|-9]], [[ISO/IEC 8859-13|-13]],<br />[[CP1250]], [[CP1251]], [[CP1252]], [[CP1253]], [[CP1254]], [[CP1255]], [[CP1256]], [[CP1257]], [[CP1258]]
|166 (A6h)
|-
|[[ISO/IEC 8859-2]], [[ISO/IEC 8859-3|-3]], [[ISO/IEC 8859-4|-4]], [[ISO/IEC 8859-5|-5]], [[ISO/IEC 8859-6|-6]], [[ISO/IEC 8859-10|-10]], [[ISO/IEC 8859-11|-11]], [[ISO/IEC 8859-14|-14]], [[ISO/IEC 8859-15|-15]], [[ISO/IEC 8859-16|-16]]
|none
|-
|[[EBCDIC]] CCSID 37
|79 (4Fh)
|rowspan=2|106 (6Ah)
|-
|[[EBCDIC]] CCSID 500
|187 (BBh)
|-
|[[JIS X 0208]], [[JIS X 0213]]
|[[Kuten|Men-ku-ten]] 1-01-35 (7-bit: 2143h; {{nobr|[[Shift JIS]]}}: 8162h; [[EUC-JP|EUC]]: A1C3h){{efn|The Shift JIS and EUC encoded forms also include the ASCII vertical bar in its usual encoding (see [[halfwidth and fullwidth forms]]). The same applies when the 7-bit form is used as part of [[ISO-2022-JP]] (allowing switching to and from ASCII).}}
|none
|}

==See also==
{{wiktionary}}

* {{annotated link|Bar (diacritic)}}
* {{annotated link|Triple bar}}

==Notes==
{{notelist}}

==References==
{{reflist}}

{{navbox punctuation}}

[[Category:Punctuation]]
[[Category:Typographical symbols]]
[[Category:Logic symbols]]