Editing Box-drawing characters

{{Short description|Characters for drawing frames and boxes}}
{{Hatnote|Several confusable characters redirect here. You may be looking for [[em dash]], [[vertical bar]], [[multiplication sign]], [[slash (punctuation)]] or [[backslash]].}}
{{SpecialChars}}

[[File:Midnight Commander screenshot.png|thumb|right|320px|[[Midnight Commander]] using box-drawing characters in a [[terminal emulator]]]]
'''Box-drawing characters''', also known as '''line-drawing characters''', are a form of [[semigraphics]] widely used in [[text user interface]]s to draw various geometric frames and boxes. These characters are characterized by being designed to be connected horizontally and/or vertically with adjacent characters, which requires proper alignment. Box-drawing characters therefore typically only work well with [[monospaced font]]s.

In [[graphical user interface]]s, these characters are much less useful as it is simpler to draw lines and rectangles directly with graphical [[API]]s. However, they are still useful for [[command-line interface]]s and plaintext [[Comment (computer programming)|comments]] within [[source code]].

Some recent embedded systems also use proprietary character sets, usually extensions to [[ISO 8859]] character sets, which include box-drawing characters or other special symbols.

Other types of box-drawing characters are [[block elements]], shade characters, and terminal graphic characters; these can be used for filling regions of the screen and portraying [[drop shadow]]s.

==Unicode==
===Box Drawing===
[[Unicode]] includes 128 such characters in the [[Box Drawing]] block.<ref name="Unicode_BoxDrawing"/> In many Unicode fonts, only the subset that is also available in the [[IBM PC compatible|IBM PC]] character set (see below) will exist, due to it being defined as part of the [[WGL4]] character set.

{{Unicode chart Box Drawing}}

The image below is provided as a quick reference for these symbols on systems that are unable to display them directly:
[[File:Unicode Box Drawings (2500 - 27FF).svg|480px|left]]
{{clear}}
===Block Elements===
The [[Block Elements]] Unicode block includes shading characters. 32 characters are included in the block.
{{Unicode chart Block Elements}}

===Symbols for Legacy Computing===
In version 13.0, Unicode was extended with another block containing many graphics characters, [[Symbols for Legacy Computing]], which includes a few box-drawing characters and other symbols used by obsolete operating systems (mostly from the 1980s). Few fonts support these characters (one is [[Noto fonts|Noto Sans Symbols 2]]), but the table of symbols is provided here:
{{Unicode chart Symbols for Legacy Computing}}

The image below is provided as a quick reference for these symbols on systems that are unable to display them directly:
[[File:Symbols for Legacy Computing Unicode block.png|480px|left]]
{{clear}}

===Symbols for Legacy Computing Supplement===
In version 16.0 (September 2024), Unicode was extended with another block containing many graphics characters, [[Symbols for Legacy Computing Supplement]], which includes a few box-drawing characters and other symbols used by obsolete operating systems (mostly from the 1970s and 1980s).
{{Unicode chart Symbols for Legacy Computing Supplement}}

==Platform-specific==
Various different platforms defined their own unique set of box-drawing characters.

===DOS===
The [[hardware code page]] of the original IBM PC supplied the following box-drawing characters, in what [[DOS]] now calls [[code page 437]]. This subset of the Unicode box-drawing characters is thus included in [[WGL4]] and is far more popular and likely to be rendered correctly:
{| class="wikitable"
! 
!0!!1!!2!!3!!4!!5!!6!!7!!8!!9!!A!!B!!C!!D!!E!!F
|-
!B
|░||▒||▓||│||┤||╡||╢||╖||╕||╣||║||╗||╝||╜||╛||┐
|-
!C
|└||┴||┬||├||─||┼||╞||╟||╚||╔||╩||╦||╠||═||╬||╧
|-
!D
|╨||╤||╥||╙||╘||╒||╓||╫||╪||┘||┌||█||▄||▌||▐||▀ 
|}

The integral halves are also box drawing as they are used alongside 0xB3:
{| class="wikitable"
! 
!4!!5
|-
!F
|⌠||⌡
|}

Their number is further limited to 28 on those code pages that replace the 18 characters that combine single and double lines, the left and right half blocks, as well as integral halves with other, usually alphabetic, characters (such as [[code page 850]]):
{| class="wikitable"
! 
!0!!1!!2!!3!!4!!5!!6!!7!!8!!9!!A!!B!!C!!D!!E!!F
|-
!B
|░||▒||▓||│||┤|| || || || ||╣||║||╗||╝|| || ||┐
|-
!C
|└||┴||┬||├||─||┼|| || ||╚||╔||╩||╦||╠||═||╬|| 
|-
!D
| || || || || || || || || ||┘||┌||█||▄|| || ||▀
|}

Note: The non-double characters are the thin (light) characters (U+2500, U+2502), not the bold (heavy) characters (U+2501, U+2503).

Some OEM DOS computers supported other character sets, for example the [[Hewlett-Packard]] [[HP 110]]&nbsp;/ [[HP Portable]] and [[HP 110 Plus]]&nbsp;/ [[HP Portable Plus]], where in a [[Modified HP Roman-8|modified version]] of the character set box-drawing characters were added in reserved areas of their normal [[HP&nbsp;Roman-8]] character set.<ref name="HP_1985_PP"/><ref name="HP_1986_PP"/>

{| class="wikitable"
! <ref name="HP_1985_PP"/><ref name="HP_1986_PP"/>
!0!!1!!2!!3!!4!!5!!6!!7!!8!!9!!A!!B!!C!!D!!E!!F
|-
!8
| || || || ||╝||╗||╔||╚||╣||╩||╦||╠||═||║||╬||
|-
!9
| ||▀||▄|| ||┘||┐||┌||└||┤||┴||┬||├||─||│||┼||█
|}

===Unix, CP/M, BBS===
On many [[Unix]] systems and early dial-up [[bulletin board system]]s the only common standard for box-drawing characters was the [[VT100]] alternate character set (see also: [[DEC Special Graphics]]). The [[escape sequence]] <code>Esc&nbsp;(&nbsp;0</code> switched the codes for lower-case ASCII letters to draw this set, and the sequence <code>Esc&nbsp;(&nbsp;B</code> switched back:

{| class="wikitable"
! !!0!!1!!2!!3!!4!!5!!6!!7!!8!!9!!A!!B!!C!!D!!E!!F
|-
!6
| || || || || || || || || || ||┘||┐||┌||└||┼|| |
|-
!7
| ||─|| || ||├||┤||┴||┬||│|| || || || || || || |
|}

On some terminals, these characters are not available at all, and the complexity of the escape sequences discouraged their use, so often only [[ASCII]] characters that approximate box-drawing characters are used, such as -&nbsp;([[hyphen-minus]]), |&nbsp;([[vertical bar]]), _{{nbsp}}([[underscore]]), ={{nbsp}}([[equal sign]]) and +&nbsp;([[plus sign]]) in a kind of [[ASCII art]] fashion.

Modern Unix [[terminal emulator]]s use Unicode and thus have access to the line-drawing characters listed above.

===Teletext===
The [[World System Teletext]] (WST) uses pixel-drawing characters for some graphics. A character cell is divided in 2×3 regions, and 2<sup>6</sup>&nbsp;=&nbsp;64 code positions are allocated for all possible combinations of pixels.<ref name="Wiels"/> These characters were added to the Unicode standard in Version 13.<ref>{{Cite web|url=https://www.unicode.org/charts/PDF/Unicode-13.0/U130-1FB00.pdf|title=Symbols for Legacy Computing|website=Unicode Consortium|access-date=2020-04-19}}</ref>

===Historical===
Many [[microcomputer]]s of the 1970s and 1980s had their own proprietary character sets, which also included box-drawing characters. Many of these were added to Unicode as [[Symbols for Legacy Computing]].

====Commodore====
{{main|PETSCII}}
Commodore machines, such as the [[Commodore PET]] and the [[Commodore 64]], included a set of text semigraphics with block elements and dithering patterns in the PETSCII character set.
[[File:PET Keyboard.svg|640px|thumb|left|[[Commodore PET|PET 2001]] keyboard layout, illustrating PETSCII graphics characters]]
{{clear}}
====Sinclair====
[[File:ZX81.chars.00-0A.80-8A.png|frame|ZX81 semigraphics]]
{{see also|ZX80 character set|ZX81 character set|ZX Spectrum character set}}
The [[Sinclair ZX80]], [[Sinclair ZX81|ZX81]], and [[ZX Spectrum]] included a set of text semigraphics with quadrant-based block elements. The ZX80 and ZX81 also included a set of text semigraphics with dithering patterns.
{{clear}}

====BBC and Acorn====
The [[BBC Micro#Display modes|BBC Micro]] could utilize the [[Teletext]] 7-bit character set, which had 128 box-drawing characters, whose code points were shared with the regular alphanumeric and punctuation characters. [[Control characters]] were used to switch between regular text and box drawing.<ref name="Teletex_1976"/>

{| class="wikitable"
|+ Teletext G1 Block Mosaics Set<ref>{{citation |title=Enhanced Teletext specification |url=https://www.etsi.org/deliver/etsi_i_ets/300700_300799/300706/01_60/ets_300706e01p.pdf#page=126 |publisher=European Telecommunications Standards Institute |page=126 |date=May 1997}}</ref>
!
!0!!1!!2!!3!!4!!5!!6!!7!!8!!9!!A!!B!!C!!D!!E!!F
|-
!2
| [[File:TRS-80 character 0x80.png|NBSP]]
| [[File:TRS-80 character 0x81.png|🬀]]
| [[File:TRS-80 character 0x82.png|🬁]]
| [[File:TRS-80 character 0x83.png|🬂]]
| [[File:TRS-80 character 0x84.png|🬃]]
| [[File:TRS-80 character 0x86.png|🬄]]
| [[File:TRS-80 character 0x85.png|🬅]]
| [[File:TRS-80 character 0x87.png|🬆]]
| [[File:TRS-80 character 0x88.png|🬇]]
| [[File:TRS-80 character 0x89.png|🬈]]
| [[File:TRS-80 character 0x8A.png|🬉]]
| [[File:TRS-80 character 0x8B.png|🬊]]
| [[File:TRS-80 character 0x8C.png|🬋]]
| [[File:TRS-80 character 0x8D.png|🬌]]
| [[File:TRS-80 character 0x8E.png|🬍]]
| [[File:TRS-80 character 0x8F.png|🬎]]
|-
!3
| [[File:TRS-80 character 0x90.png|🬏]]
| [[File:TRS-80 character 0x91.png|🬐]]
| [[File:TRS-80 character 0x92.png|🬑]]
| [[File:TRS-80 character 0x93.png|🬒]]
| [[File:TRS-80 character 0x94.png|🬓]]
| [[File:TRS-80 character 0x95.png|▌]]
| [[File:TRS-80 character 0x96.png|🬔]]
| [[File:TRS-80 character 0x97.png|🬕]]
| [[File:TRS-80 character 0x98.png|🬖]]
| [[File:TRS-80 character 0x99.png|🬗]]
| [[File:TRS-80 character 0x9A.png|🬘]]
| [[File:TRS-80 character 0x9B.png|🬙]]
| [[File:TRS-80 character 0x9C.png|🬚]]
| [[File:TRS-80 character 0x9D.png|🬛]]
| [[File:TRS-80 character 0x9E.png|🬜]]
| [[File:TRS-80 character 0x9F.png|🬝]]
|-
!6
| [[File:TRS-80 character 0xA0.png|🬞]]
| [[File:TRS-80 character 0xA1.png|🬟]]
| [[File:TRS-80 character 0xA2.png|🬠]]
| [[File:TRS-80 character 0xA3.png|🬡]]
| [[File:TRS-80 character 0xA4.png|🬢]]
| [[File:TRS-80 character 0xA5.png|🬣]]
| [[File:TRS-80 character 0xA6.png|🬤]]
| [[File:TRS-80 character 0xA7.png|🬥]]
| [[File:TRS-80 character 0xA8.png|🬦]]
| [[File:TRS-80 character 0xA9.png|🬧]]
| [[File:TRS-80 character 0xAA.png|▐]]
| [[File:TRS-80 character 0xAB.png|🬨]]
| [[File:TRS-80 character 0xAC.png|🬩]]
| [[File:TRS-80 character 0xAD.png|🬪]]
| [[File:TRS-80 character 0xAE.png|🬫]]
| [[File:TRS-80 character 0xAF.png|🬬]]
|-
!7
| [[File:TRS-80 character 0xB0.png|🬭]]
| [[File:TRS-80 character 0xB1.png|🬮]]
| [[File:TRS-80 character 0xB2.png|🬯]]
| [[File:TRS-80 character 0xB3.png|🬰]]
| [[File:TRS-80 character 0xB4.png|🬱]]
| [[File:TRS-80 character 0xB5.png|🬲]]
| [[File:TRS-80 character 0xB6.png|🬳]]
| [[File:TRS-80 character 0xB7.png|🬴]]
| [[File:TRS-80 character 0xB8.png|🬵]]
| [[File:TRS-80 character 0xB9.png|🬶]]
| [[File:TRS-80 character 0xBA.png|🬷]]
| [[File:TRS-80 character 0xBB.png|🬸]]
| [[File:TRS-80 character 0xBC.png|🬹]]
| [[File:TRS-80 character 0xBD.png|🬺]]
| [[File:TRS-80 character 0xBE.png|🬻]]
| [[File:TRS-80 character 0xBF.png|█]]
|}
{| class="wikitable"
|+ Braille Sextant Mosaics Set<ref>{{citation |title=Enhanced Teletext specification |url=https://www.etsi.org/deliver/etsi_i_ets/300700_300799/300706/01_60/ets_300706e01p.pdf#page=126 |publisher=European Telecommunications Standards Institute |page=126 |date=May 1997}}</ref>{{verification failed|date=February 2025}}
!
!0!!1!!2!!3!!4!!5!!6!!7!!8!!9!!A!!B!!C!!D!!E!!F
|-
!2
| [[File:TRS-80 character 0x80.png|NBSP]]
| [[File:TRS-80 character 0xB6.png|🬳]]
| [[File:TRS-80 character 0x88.png|🬇]]
| [[File:TRS-80 character 0xBA.png|🬷]]
| [[File:TRS-80 character 0xA7.png|🬥]]
| [[File:TRS-80 character 0xA3.png|🬡]]
| [[File:TRS-80 character 0xB7.png|🬴]]
| [[File:TRS-80 character 0x90.png|🬏]]
| [[File:TRS-80 character 0xBD.png|🬺]]
| [[File:TRS-80 character 0xBE.png|🬻]]
| [[File:TRS-80 character 0xA1.png|🬟]]
| [[File:TRS-80 character 0xB2.png|🬯]]
| [[File:TRS-80 character 0xA0.png|🬞]]
| [[File:TRS-80 character 0xB0.png|🬭]]
| [[File:TRS-80 character 0xA2.png|🬠]]
| [[File:TRS-80 character 0x92.png|🬑]]
|-
!3
| [[File:TRS-80 character 0xB8.png|🬵]]
| [[File:TRS-80 character 0x84.png|🬃]]
| [[File:TRS-80 character 0x94.png|🬓]]
| [[File:TRS-80 character 0x8C.png|🬋]]
| [[File:TRS-80 character 0xAC.png|🬩]]
| [[File:TRS-80 character 0xA4.png|🬢]]
| [[File:TRS-80 character 0x9C.png|🬚]]
| [[File:TRS-80 character 0xBC.png|🬹]]
| [[File:TRS-80 character 0xB4.png|🬱]]
| [[File:TRS-80 character 0x98.png|🬖]]
| [[File:TRS-80 character 0xA9.png|🬧]]
| [[File:TRS-80 character 0xA8.png|🬦]]
| [[File:TRS-80 character 0xA5.png|🬣]]
| [[File:TRS-80 character 0xBF.png|█]]
| [[File:TRS-80 character 0x9A.png|🬘]]
| [[File:TRS-80 character 0xAB.png|🬨]]
|-
!4
| [[File:TRS-80 character 0x82.png|🬁]]
| [[File:TRS-80 character 0x81.png|🬀]]
| [[File:TRS-80 character 0x86.png|🬄]]
| [[File:TRS-80 character 0x83.png|🬂]]
| [[File:TRS-80 character 0x8B.png|🬊]]
| [[File:TRS-80 character 0x89.png|🬈]]
| [[File:TRS-80 character 0x87.png|🬆]]
| [[File:TRS-80 character 0x8F.png|🬎]]
| [[File:TRS-80 character 0x8D.png|🬌]]
| [[File:TRS-80 character 0x85.png|🬅]]
| [[File:TRS-80 character 0x8E.png|🬍]]
| [[File:TRS-80 character 0x91.png|🬐]]
| [[File:TRS-80 character 0x95.png|▌]]
| [[File:TRS-80 character 0x93.png|🬒]]
| [[File:TRS-80 character 0x9B.png|🬙]]
| [[File:TRS-80 character 0x99.png|🬗]]
|-
!5
| [[File:TRS-80 character 0x97.png|🬕]]
| [[File:TRS-80 character 0x9F.png|🬝]]
| [[File:TRS-80 character 0x9D.png|🬛]]
| [[File:TRS-80 character 0x96.png|🬔]]
| [[File:TRS-80 character 0x9E.png|🬜]]
| [[File:TRS-80 character 0xB1.png|🬮]]
| [[File:TRS-80 character 0xB5.png|🬲]]
| [[File:TRS-80 character 0xAE.png|🬫]]
| [[File:TRS-80 character 0xB3.png|🬰]]
| [[File:TRS-80 character 0xBB.png|🬸]]
| [[File:TRS-80 character 0xB9.png|🬶]]
| [[File:TRS-80 character 0xA6.png|🬤]]
| [[File:TRS-80 character 0xAD.png|🬪]]
| [[File:TRS-80 character 0xAF.png|🬬]]
| [[File:TRS-80 character 0x8A.png|🬉]]
| [[File:TRS-80 character 0xAA.png|▐]]
|}
The [[BBC Master]] and later [[Acorn Computers|Acorn]] computers have the soft font by default defined with line drawing characters.

{| class="wikitable"
!
!0!!1!!2!!3!!4!!5!!6!!7!!8!!9!!A!!B!!C!!D!!E!!F
|-
!A
| ||╷||╶||┌||╴||┐||─||┬||╵||│||└||├||┘||┤||┴||┼
|-
!B
|╭||╮||╰||╯|| || || || || || || || || || || || 
|}

====Amstrad====
The [[Amstrad CPC character set]] also has soft characters defined by default as block and line drawing characters.

{| class="wikitable"
!
!0!!1!!2!!3!!4!!5!!6!!7!!8!!9!!A!!B!!C!!D!!E!!F
|-
!8
| ||▘||▝||▀||▖||▍||▞||▛||▗||▚||▐||▜||▃||▙||▟||▉
|-
!9
| ||╵||╶||└||╷||│||┌||├||╴||┘||─||┴||┐||┤||┬||┼
|}

The [[CP/M Plus character set]] used on various [[Amstrad]] computers of the [[Amstrad CPC|CPC]], [[Amstrad PCW|PCW]] and [[Amstrad ZX Spectrum +3|Spectrum]] families included a rich set of line-drawing characters as well:<ref name="Plus3CPM"/><ref name="Elliott_2015_XBIOS"/><ref name="AT_CPMPlus_CS"/>

{| class="wikitable"
! <ref name="Plus3CPM"/>
!0!!1!!2!!3!!4!!5!!6!!7!!8!!9!!A!!B!!C!!D!!E!!F
|-
!8
| ||╧||╟||╚||╤||║||╔||╠||╢||╝||═||╩||╗||╣||╦||╬
|-
!9
| ||╵||╶||└||╷||│||┌||├||╴||┘||─||┴||┐||┤||┬||┼
|}

====Apple====
[[MouseText]] is a set of display characters for the [[Apple IIc]], [[Apple IIe|IIe]], and [[Apple IIGS|IIGS]] that includes box-drawing characters.

==Encoding==
On many platforms, the character shape is determined programmatically from the character code.

* ZX Spectrum block characters:
*: {{code|0x80 + topright*1 + topleft*2 + bottomright*4 + bottomleft*8}}
* Amstrad CPC block characters:
*: {{code|0x80 + topleft*1 + topright*2 + bottomleft*4 + bottomright*8}}
* Amstrad CPC line characters:
*: {{code|0x90 + up*1 + right*2 + down*4 + left*8}}
* BBC Master line characters:
*: {{code|0xA0 + down*1 + right*2 + left*4 + up*8}}
* Teletext block characters:
*: {{code|0xA0 + topleft*1 + topright*2 + middleleft*4 + middleright*8 + bottomleft*16 + bottomright*64}}

However, DOS line- and box-drawing characters are not ordered in any programmatic manner, so calculating a particular character shape needs to use a look-up table.

==Examples==
Sample diagrams made out of the standard box-drawing characters, using a monospaced font:
<pre style="line-height: 1.0; font-family: menlo,lucida console,consolas,courier new,courier,monospace;">
┌─┬┐  ╔═╦╗  ╓─╥╖  ╒═╤╕
│ ││  ║ ║║  ║ ║║  │ ││
├─┼┤  ╠═╬╣  ╟─╫╢  ╞═╪╡
└─┴┘  ╚═╩╝  ╙─╨╜  ╘═╧╛
┌───────────────────┐
│  ╔═══╗ Some Text  │▒
│  ╚═╦═╝ in the box │▒
╞═╤══╩══╤═══════════╡▒
│ ├──┬──┤           │▒
│ └──┴──┘           │▒
└───────────────────┘▒
 ▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒
</pre>

==See also==
{{commons category|Text mode box drawing}}

* [[ASCII art]] and [[ANSI art]]
* [[Dingbat]]
* [[MouseText]]
* [[Text-based user interface]]
* [[Semigraphics]]
* Unicode blocks
** [[Box Drawing]]
** [[Block Elements]]
** [[Geometric Shapes (Unicode block)|Geometric Shapes]]
** [[Symbols for Legacy Computing]]
** [[Symbols for Legacy Computing Supplement]]

==References==
{{reflist|refs=
<ref name="Unicode_BoxDrawing">[http://unicode.org/charts/PDF/U2500.pdf Box Drawing U+2500-U+257F], The Unicode Standard Code Charts</ref>
<ref name="HP_1985_PP">{{cite book |title=Hewlett-Packard - Technical Reference Manual - Portable PLUS |date=August 1985 |edition=1 |id=45559-90001 |publisher=[[Hewlett-Packard Company]], Portable Computer Division |location=Corvallis, OR, USA |url=https://archive.org/details/bitsavers_hpportableblePLUSTechnicalReferenceManualAug1985_25919880 |access-date=2016-11-27 }}</ref>
<ref name="HP_1986_PP">{{cite book |title=Hewlett-Packard - Technical Reference Manual - Portable PLUS |date=December 1986 |orig-year=August 1985 |edition=2 |id=45559-90006 |publisher=[[Hewlett-Packard Company]] |location=Portable Computer Division, Corvallis, OR, USA |url=http://www.jeffcalc.hp41.eu/hpplus/files/techrefman.pdf |access-date=2016-11-27 |url-status=live |archive-url=https://web.archive.org/web/20161128194426/http://www.jeffcalc.hp41.eu/hpplus/files/techrefman.pdf |archive-date=2016-11-28}}</ref>
<ref name="Teletex_1976">Broadcast Teletext Specification, September 1976 (as [http://www.bighole.nl/pub/mirror/homepage.ntlworld.com/kryten_droid/teletext/spec/teletext_spec_1974.htm HTML] or [https://web.archive.org/web/20050501212309/http://www.doc.ic.ac.uk/~ih/teaching/teletext/tt-spec/ scans of original document])</ref>
<ref name="Plus3CPM">{{cite book |title=Spectrum +3 CP/M Plus manual |chapter=Appendix II: CP/M Plus character sets / II.1 The complete character set (Language 0) |chapter-url=http://www.worldofspectrum.org/Plus3CPMManual/appendix2.html |type=User Manual |access-date=2017-07-10 |url-status=live |archive-url=https://web.archive.org/web/20091015151318/http://www.worldofspectrum.org/Plus3CPMManual/appendix2.html |archive-date=2009-10-15}} [http://k1.spdns.de/Vintage/Sinclair/86/ZX%20Spectrum%2B3/ZX%20Spectrum%2B3%20CP%3AM%20Manual/appendix2.html]</ref>
<ref name="Elliott_2015_XBIOS">{{cite web |author-first=John C. |author-last=Elliott |date=2015-04-04 |title=Amstrad Extended BIOS Internals |work=Seasip.info |url=http://www.seasip.info/Cpm/xbiosint.html |access-date=2017-07-15 |url-status=live |archive-url=https://web.archive.org/web/20170715103636/http://www.seasip.info/Cpm/xbiosint.html |archive-date=2017-07-15}}</ref>
<ref name="AT_CPMPlus_CS">{{cite web |title=Amstrad CP/M Plus character set |url=http://fileformats.archiveteam.org/wiki/Amstrad_CP/M_Plus_character_set |access-date=2017-07-15 |url-status=live |archive-url=https://web.archive.org/web/20170715103000/http://fileformats.archiveteam.org/wiki/Amstrad_CP/M_Plus_character_set |archive-date=2017-07-15}}</ref>
<ref name="Wiels">{{cite web |title=TeleText - Het Protocol |language=nl |author=Wiels |url=https://www.wiels.nl/teletext/ |at=Mosaic characters |access-date=2017-12-21 |url-status=live |archive-url=https://web.archive.org/web/20171222002304/https://www.wiels.nl/teletext/ |archive-date=2017-12-22}}</ref>
}}

[[Category:Unicode]]
[[Category:Lists of shapes|Box drawing]]
[[Category:Character sets]]