Vertical bar?

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Add a link on the top of this Vertical bar page Express submission by secure payment ! <table><tr><td> <form name="APform" action="http://www.allopass.com/cb/check.php4" method="POST"> <input type="hidden" name="CDOC_ID" value="297865"> <input type="hidden" name="CSITE_ID" value="111941"> <input type="hidden" name="LG_SCRIPT" value="uk"> <table border="0" cellpadding="0" cellspacing="0" width="300"> <tr> <td colspan="3"> <img src="http://www.allopass.com/imgweb/script/uk/cb_os_top.gif" alt=""> </td> </tr> <tr> <td width="157" valign="middle" bgcolor="White"> <font face="Arial,Helvetica" color="Black" size="11" Style="font-size: 12px;"> <b>Enter your access ticket</b> </font> </td> <td width="80" bgcolor="White"> <input type="text" size="10" maxlength="10" value="Ticket" name="CODE" onFocus="if (this.form.CODE.value=='Ticket') this.form.CODE.value=''" style="BACKGROUND-COLOR: #E7E7E7; BORDER-BOTTOM: #000080 1px solid; BORDER-LEFT: #000080 1px solid; BORDER-RIGHT: #000080 1px solid; BORDER-TOP: #000080 1px solid; COLOR: #000080; CURSOR: text; FONT-FAMILY: Arial; FONT-SIZE: 10pt; FONT-WEIGHT:bold; LETTER-SPACING: normal; WIDTH:85; TEXT-ALIGN=center;"> </td> <td width="58" align="center" bgcolor="White"> <input type="button" name="APsub" value="" onClick="this.form.submit(); this.form.APsub.disabled=true;" style="border:0px;margin:0px;padding:0px;width:48px; height:18px; background:url('http://www.allopass.com/img/bt_ok.png');"> </td> </tr> <tr><td colspan="3" width="300" height="13</font><br><img src="http://www.allopass.com/img/cb_bot.gif" alt=""></td></tr> </table> <input type="hidden" name="DATAS" value=""> </form> </td><td valign= op"><table border="0" cellpadding="0" cellspacing="0"> <tr> <td> <form name="cben" action="https://secure.allopass.com/cb/subscribe.php4" method="POST" target="DisplaySub"> <input type="hidden" name="START" value="1"> <input type="hidden" name="SDOC_ID" value="297865"> <input type="hidden" name="SSITE_ID" value="111941"> <input type="hidden" name="LANG" value="L_UK"> <input type="image" src="http://www.allopass.com/imgweb/script/uk/cb_subscribe_os.gif" alt="Ticket d'accès" onClick="window.open('','DisplaySub','toolbar=0,location=0,directories=0,status=1,menubar=0,scrollbars=1,resizable=1,width=600,height=570');" border = 0> </form> </td> </tr> </table></td></tr></table>

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Punctuation marks
apostrophe ( ' ) ( ’ ) brackets ( ( ) ) ( ) ( { } ) ( 〈 〉 ) colon ( : ) comma ( , ) dashes ( ‒ ) ( – ) ( — ) ( ― ) ellipsis ( … ) ( w/. ) exclamation mark ( ! ) full stop/period ( . ) hyphen ( - ) ( ‐ ) interrobang ( ‽ ) question mark ( ? ) quotation marks ( ‘ ’ ) ( “ ” ) semicolon ( ; ) slash/solidus ( / ) space ( ) and interpunct ( · )
Other typographer's marks
ampersand ( & ) asterisk ( * ) and asterism ( ⁂ ) at ( @ ) backslash ( \ ) bullet ( •, more ) dagger ( † ‡ ) degrees ( ° ) number sign ( # ) prime ( ′ ) tilde ( ~ ) underscore ( _ ) vertical bar/pipe ( | )

Vertical bar, or pipe is the name of the ASCII character at position 124 (decimal). The character is depicted as either a solid vertical bar ("|") or a vertical bar with a break in the middle (broken bar "¦"). The character is usually depicted as a broken bar on IBM PC keyboards to distinguish it from other characters. However, in Unicode the "broken bar" is a separate character, U+00A6 (¦).

Have to see

Contents 1 Usage: 1.1 Mathematics 1.2 Cursors 1.3 Wiki markup 1.4 Backus-Naur form 1.5 Unix 1.5.1 Regular Expression 1.6 Disjunction 1.7 Concatenation 1.8 Delimiter 1.9 Khoisan Orthography 2 Etymology

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Usage:

Mathematics

The vertical bar is used as a mathematical symbol in

• absolute value: | x | , read "the absolute value (or modulus) of x".
• norms: | | (x₁,x₂) | | , read "the norm of x sub one, x sub two"; though Unicode also provides a special double vertical line symbol U+2016: ‖x‖
• set definition: {x | x AND1lt; 2}, read "the set of x such that x is less than two". Often sets are written with a colon ':' rather than a vertical bar.
• conditional probability: P(X | Y), read "the probability of X given Y".
• divisibility: a | b, read "a divides b".

Cursors

In text that cannot be ed but can be selected, for example, on a web page, the cursor can also be a vertical bar, possibly with serifs at the top and bottom.

The vertical bar as a cursor was made the hallmark of a Nextel advertising campaign.

Wiki markup

The vertical bar is used in internal links to separate a link from the displayed text. E.g., c programming language|C displays as C.

Backus-Naur form

In BNF the expression consists of sequences of symbols and/or sequences separated by '|', indicating a choice, the whole being a possible substitution for the symbol on the left.

AND1lt;personal-name> ::= AND1lt;name> | AND1lt;initial>

Unix

A pipe is an operating system mechanism originating in Unix which allows the output of one process to be used as input to another. In the shell command, this is represented by the vertical bar character.

Regular Expression

In regular expressions, the pipe indicates alternation. E.g., grep 'foo|bar' matches lines containing 'foo' or 'bar'.

Disjunction

In many programming languages, it is used to designate the logic operation or, either bitwise or or logical or.

Specifically, in C and other languages following C syntax, such as Perl and Java, (a | b) denotes bitwise or; while double vertical bar (a || b) denotes (short-circuited) logical or.

Concatenation

In PL/I and SQL, the operator "||" denotes string concatenation.

Delimiter

Although not as common as commas or tabs, the vertical bar/pipe symbol can be used as delimiter in a flat file. An example of a pipe-delimited standard data format is LEDES 1998B.

Khoisan Orthography

In the Khoisan languages, the pipe is used to write the dental click.

Etymology

The name pipe for the character "|" came into common usage due to the fact that it is used in the Unix shell to pipe the output of one program into another program.

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