Module:Unicode data/doc

This is the documentation page for Module:Unicode data

This Lua module is used on approximately 1,470,000 pages, or roughly 7937% of all pages.
To avoid major disruption and server load, any changes should be tested in the module's /sandbox or /testcases subpages, or in your own module sandbox. The tested changes can be added to this page in a single edit. Consider discussing changes on the talk page before implementing them.

Usage

This module provides functions that access information on Unicode code points. The information is retrieved from data modules generated from the Unicode Character Database, or derived by rules given in the Unicode Specification. It and its submodules were copied from English Wiktionary and then modified; see there for more information.

Parameters and functions

code point

The code point is to be entered as hexadecimal value. For example, U+00A9 © COPYRIGHT SIGN:

|A9_hex

|0xA9_hex

|0x00A9_hex

|0x00a9_hex

{{#invoke:Unicode data|lookup|name|0x00A9}} → COPYRIGHT SIGN

Incorrect or unintended results:

169_dec: {{#invoke:Unicode data|lookup|name|169}} → LATIN SMALL LETTER U WITH TILDE File:Red x.svg —"U+00A9" © expected; but is read as 00A9_hex (that is, 361_dec

U+00A9 {{#invoke:Unicode data|lookup|name|U+00A9}} File:Red x.svg —do not use "U+" prefix

غ {{#invoke:Unicode data|lookup|name|غ}} File:Red x.svg —cannot enter a character as codepoint

"lookup" and "is" functions

lookup, is: Template-invokable functions that allow access to the functions starting with lookup and is.For most of the functions, add the code point in hexadecimal base as the next parameter. For is"|Latin, is|rtl, and is|valid_pagename, add character string. HTML character references in the text are decoded by the module into code points.; For example, {{#invoke:Unicode data|is|Latin|àzàhàr̃iyyā̀}} → Lua error in Module:Unicode_data at line 15: attempt to call field 'length' (a nil value)..

Internally, in modules, these functions are named using underscore: lookup_name|code point ← lookup_name

For &A9; ©: {{#invoke:Unicode data|lookup|name|A9}} → COPYRIGHT SIGN

Functions overview

This table:

Code points: enter hexadecimal value, for example |0x0061 or |61; not |U+0061.

Topic	Function	Parameter type (string=by character(s); c.p. by 0xHex value)	Example	Returns	Character
Unicode character name	`\|lookup\|name`	code point	`{{#invoke:Unicode data\|lookup\|name\|0xA9}}` `{{#invoke:Unicode data\|lookup\|name\|0x0007}}`	COPYRIGHT SIGN <control-0007>	©
Scripts	`\|lookup\|script`	code point	`{{#invoke:Unicode data\|lookup\|script\|A061}}`	Lua error in Module:Unicode_data at line 15: attempt to call field 'length' (a nil value).	ꁡ
Blocks	`\|lookup\|block`	code point	`{{#invoke:Unicode data\|lookup\|block\|A061}}`	Yi Syllables	ꁡ
Planes	`\|lookup\|plane`	code point	`{{#invoke:Unicode data\|lookup\|plane\|0xA9}}` `{{#invoke:Unicode data\|lookup\|plane\|0x1F608}}`	Basic Multilingual Plane Supplementary Multilingual Plane	© 😈
General Category	`\|lookup\|category`	code point	`{{#invoke:Unicode data\|lookup\|category\|0xA9}}` `{{#invoke:Unicode data\|lookup\|category\|0x002B}}`	So Sm	© +
Controls	`\|is\|control`	code point	`{{#invoke:Unicode data\|lookup\|control\|A9}}` `{{#invoke:Unicode data\|lookup\|control\|FFFF}}`	Lua error in Module:Unicode_data at line 15: attempt to call field 'length' (a nil value). Lua error in Module:Unicode_data at line 15: attempt to call field 'length' (a nil value).	©
Latin script	`\|is\|Latin`	string	`{{#invoke:Unicode data\|is\|Latin\|abcŁíā̀}}` `{{#invoke:Unicode data\|is\|Latin\|abc文xyz}}`	Lua error in Module:Unicode_data at line 15: attempt to call field 'length' (a nil value). Lua error in Module:Unicode_data at line 15: attempt to call field 'length' (a nil value).
WP:Article title (WP:NCTR)	`\|is\|valid_pagename`	string	`{{#invoke:Unicode data\|is\|valid_pagename\|Main_page}}` `{{#invoke:Unicode data\|is\|valid_pagename\|# (disambiguation)}}`	Lua error in Module:Unicode_data at line 15: attempt to call field 'length' (a nil value). false
Bidirectionality, right-to-left scripts	`\|is\|rtl`	string	`{{#invoke:Unicode data\|is\|rtl\|ش}}` `{{#invoke:Unicode data\|is\|rtl\|34}}`	Lua error in Module:Unicode_data at line 15: attempt to call field 'length' (a nil value). false	ش 4
Combining character	`\|is\|combining`	code point	`{{#invoke:Unicode data\|is\|combining\|0300}}` `{{#invoke:Unicode data\|is\|combining\|64}}`	Lua error in Module:Unicode_data at line 15: attempt to call field 'length' (a nil value). Lua error in Module:Unicode_data at line 15: attempt to call field 'length' (a nil value).	̀ d
Character assignation	`\|is\|assigned`	code point	`{{#invoke:Unicode data\|is\|assigned\|A061}}` `{{#invoke:Unicode data\|is\|assigned\|FFEF}}`	Lua error in Module:Unicode_data at line 15: attempt to call field 'length' (a nil value). Lua error in Module:Unicode_data at line 15: attempt to call field 'length' (a nil value).	ꁡ ;
Printable	`\|is\|printable`	code point	`{{#invoke:Unicode data\|is\|printable\|0061}}` `{{#invoke:Unicode data\|is\|printable\|0007}}` `{{#invoke:Unicode data\|is\|printable\|FFFF}}`	>Lua error in Module:Unicode_data at line 15: attempt to call field 'length' (a nil value).< >Lua error in Module:Unicode_data at line 15: attempt to call field 'length' (a nil value).< >Lua error in Module:Unicode_data at line 15: attempt to call field 'length' (a nil value).<	>a< >< ><
Whitespace character § Unicode	`\|is\|whitespace`	code point	`{{#invoke:Unicode data\|is\|whitespace\|0x20}}` `{{#invoke:Unicode data\|is\|whitespace\|0xA0}}` `{{#invoke:Unicode data\|is\|whitespace\|0x64}}`	>true< >true< NBSP >Lua error in Module:Unicode_data at line 15: attempt to call field 'length' (a nil value).<	> < > < >d<
Hangul	`\|Hangul`		[application unknown]		&#x; &#x;
Alias names	`\|aliases`		[application unknown]		&#x; &#x;
Combining class	`\|`		[application unknown]		&#x; &#x;
Age	`\|`		[application unknown]
get_best_script	`\|get_best_script`		[application unknown]

Data modules

The data used by functions in this module is found in submodules. Some are generated by AWK scripts shown at User:Kephir/Unicode on English Wiktionary, others by Lua scripts on the /make subpages of the submodules.

Module:Unicode data/age: 'Age' of a character, that is: version introduction number.
Module:Unicode data/aliases: the formal name aliases for characters (from NameAliases.txt)
Module:Unicode data/blocks: the list of Unicode blocks (from Blocks.txt)
Module:Unicode data/category: data mapping characters to their General Category (from DerivedGeneralCategory.txt)
Module:Unicode data/combining: data mapping characters to their Combining Classes (from DerivedCombiningClass.txt)
Module:Unicode data/control: data for identifying characters that belong to the General Categories of Separator and Other (from DerivedGeneralCategory.txt)
Module:Unicode data/derived core properties:
Module:Unicode data/Hangul: data used to generate the names of Hangul syllables (from Jamo.txt)
Module:Unicode data/names/* (000hh, .., 0E0hh; eg ../names/000): names
Module:Unicode data/scripts: data mapping characters to their Unicode script properties (from Scripts.txt).

The name data modules (Module:Unicode data/names/xxx) were compiled from UnicodeData.txt. Each one contains, at maximum, code points U+xxx000 to U+xxxFFF. Lua error: too many expensive function calls.

Copyright

The Unicode database is released by Unicode Inc. under the following terms:

Copyright © 1991-2018 Unicode, Inc. All rights reserved. Distributed under the Terms of Use in https://www.unicode.org/copyright.html.
Permission is hereby granted, free of charge, to any person obtaining a copy of the Unicode data files and any associated documentation (the "Data Files") or Unicode software and any associated documentation (the "Software") to deal in the Data Files or Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, and/or sell copies of the Data Files or Software, and to permit persons to whom the Data Files or Software are furnished to do so, provided that either (a) this copyright and permission notice appear with all copies of the Data Files or Software, or (b) this copyright and permission notice appear in associated Documentation.
THE DATA FILES AND SOFTWARE ARE PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT OF THIRD PARTY RIGHTS. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR HOLDERS INCLUDED IN THIS NOTICE BE LIABLE FOR ANY CLAIM, OR ANY SPECIAL INDIRECT OR CONSEQUENTIAL DAMAGES, OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THE DATA FILES OR SOFTWARE.
Except as contained in this notice, the name of a copyright holder shall not be used in advertising or otherwise to promote the sale, use or other dealings in these Data Files or Software without prior written authorization of the copyright holder.

Known issues

Reading data like Module:Unicode data/aliases not provided nor documented
Test fail: lookup_category U+FFFF (<noncharacter-FFFF>) expected: Cn.

{{#invoke:Unicode data|lookup|category|0xFFFF}} → Lua error in Module:Unicode_data at line 15: attempt to call field 'length' (a nil value). [Nil]