Editing Allograph (section)

== Typography ==
{{multiple images|total_width=400px
|image1=Euro Construction.svg
|caption1=Official dimensions of the [[euro sign]]
|image2=Moreeurofonts.svg
|caption2=Allographs of the sign in a selection of type faces
}}

In typography, the term 'allograph' is used more specifically to describe the different representations of the same grapheme or character in different [[typeface]]s.<ref>{{cite web|url=http://www.nuqta.com/kb/arabic-script-tutorial |title = Arabic Script Tutorial | quote= In Arabic the abstract, nominal graphemes are represented by context-dependent allographs. Simplified support for Arabic handles contextual allographs according to two patterns, discontinuous and continuous assimilation. (Allographs and Ligatures) | author = Thomas Milo |author1-link=Thomas Milo | website=nuqta.com | date= 2012 | access-date=24 November 2019}}</ref> The resulting [[glyph]]s may look quite different in shape and style from the reference character or each other, but nevertheless their meaning remains the same.<ref>{{cite journal| title=The role of allograph representations in font-invariant letter identification | doi= 10.1037/xhp0000384 | pmid= 28368166 |pmc = 5481478| author1 = David Rothlein | author2 = Brenda Rapp |journal = Journal of Experimental Psychology: Human Perception and Performance|volume = 43|issue = 7|pages = 1411–1429| date = 3 April 2017 }}</ref> 

In [[Unicode]], a given character is allocated a [[code point]]: all allographs of that character have the same code point and thus the essential meaning is retained irrespective of font choice at time of printing or display. Typically, for example, {{unichar|0067|Latin small letter g}} is given a loop tail in [[serif]] typefaces but not in [[sans-serif]] faces (e.g., <span style="font-family: Times New Roman, serif; font-size:110%">Times New Roman: g</span>, <span style="font-family: Helvetica, Arial, sans-serif">Helvetica: g</span>) but its code point is constant and its meaning persists irrespective of typeface.{{efn|The code {{unichar|0261|Latin small letter script g}} in the [[IPA Extensions]] block is specified for use with the [[International Phonetic Alphabet]] and so incidental to this discussion.}}

=== Typography of Han characters ===
{{main|Variant Chinese characters}}
In the [[Chinese character|Han script]], there exist several graphemes that have more than one written representation. Han typefaces often contain many variants of some graphemes. Different regional standards have adopted certain character variants. For instance:

:{| class=wikitable
!Standard!!Allograph!!Dictionary definition
|-
|[[China|Mainland China]]||lang="zh-Hans-CN" align="center"|户||{{nounderlines|[[wiktionary:户|户]]}}
|-
|[[Japan]]||lang="ja" align="center"| 戸||{{nounderlines|[[wiktionary:戸|戸]]}}
|-
|[[Taiwan]]||lang="zh-Hant-TW" align="center"| 戶||{{nounderlines|[[wiktionary:戶|戶]]}}
|}