మూస:ISO 15924 direction
Usage[మార్చు]
The template returns, for an ISO script code, the direction rtl, ltr, ttb, inh, mixed, or <blank>.
{{ISO 15924 direction|Hebr}}→ rtl{{ISO 15924 direction|Latn}}→ ltr
Options[మార్చు]
The output texts rtl, ltr, ttb, mixed, inh, or <blank> can be altered:
{{ISO 15924 direction|Hebr|ltr=left-to-right|rtl=right-to-left}}→ right-to-left
{{ISO 15924 direction|Mang|ltr=left-to-right|rtl=right-to-left|mixed=both directions|default=unknown}}→ unknown
{{ISO 15924 direction|Mong|ttb=top-to-bottom}}→ top-to-bottom
{{ISO 15924 direction|Zyyy|ltr=left-to-right|rtl=right-to-left|mixed=both directions|default=unknown}}→ both directions
How is it determined[మార్చు]
The direction is determined as follows.
- First, if a script is present in Unicode, Unicode Bidi-direction is derived for that Unicode script.
There are 94 scripts in Unicode (those ISO codes that have an alias). All regular scripts have a single "Strong" in Unicode direction. That is, all characters in a Unicode script that are "Strong", have the same directionality: either right-to-left (rtl) or left-to-right (ltr). Within a script there are no opposing directions present. There can be characters with "Weak" or "Neutral" direction (i.e., direction through context), but these do not alter other characters diretionality. One exception: script "Zyyy" conatains characters with either direction. Therefor, Zyyy has direction "mixed".
- Second, all other scripts, that are not defined in Unicode, can have their direction set manually in this template.
How to add a script direction[మార్చు]
The Unicode scripts are determined as of version 6.0, and should be complete & correct. That (upper) part of the list should not be changed unless for errors. An script directionality can be added:
| <!--
end of Unicode-determined -->
| Abcd
| Defg = {{{ltr|ltr}}
| Pqrs
| Tuvw = {{{rtl|rtl}}
| #default={{{default|}}}
The parameters as shown keep the output text option available.
Background[మార్చు]
For scripts in Unicode, the direction is determined as follows. Each character in a script (say Hebr) has a single property bidi-type. The value of that bidi-type is from a list, and its usage is described in the Unicode Bidi Algorithm (UAX#9).
The bidi-type can determine the direction, which can be a Strong, Neutral or Weak one. Strong directions are independent, like for the Latin alphabet A-Z. Neutral and Weak directions are dependent on context (think nearby other characters), and are used e.g. with decimals, diacritics and punctuation marks.
Within the character set of a script (e.g. Hebr=Hebrew script has 133 characters in Unicode), there are Strong characters, all are right-to-left. Other characters are Neutral, and so have not direction by their own. This is true for all (but one) scripts in Unicode: withingn a script, all Strong directions are the same.
From there this templates is build: All scripts in Unicode (but one exception, see below) have a single Strong direction. That direction is used here in this template. The exception is: Zyyy, Common, which is a collection of various characters that can be of either direction.
See also[మార్చు]
General information on ISO 15924 templates[మార్చు]
Maintenance[మార్చు]
| Item | Publisher | Details | Example | Definition in template | Usage in page | Notes | |
|---|---|---|---|---|---|---|---|
| Code | ISO 15924 | Alpha-4 | Arab | {{ISO 15924 code}} | {{ISO 15924/footer}}, /doc | ||
| Number | ISO 15924 | Range 000–999 | 234 | {{ISO 15924 number}} | |||
| Name | ISO 15924 | Descriptive name | {{ISO 15924 name}} | ISO name can differ from Unicode (alias) name | |||
| Alias1 | ISO 159242 | Script name as used in Unicode | Arabic | {{ISO 15924 alias}} | |||
| Script direction | Unicode | Can vary per character, but all Unicode scripts (so far) have a single main direction |
rtl | {{ISO 15924 direction}} | |||
| WP-name | en:Wikipedia | WP content page name for the script | Arabic script | {{ISO 15924/wp-name}} | |||
| WP-category | en:Wikipedia | WP category name for the script | Arabic script | {{ISO 15924/wp-category}} | Category:Arabic script | ||
Script example character |
en:Wikipedia | Example character in userboxes | మూస:ISO 15924/script-example-character | {{ISO 15924/script-example-character}} మూస:ISO 15924/script-example-character | User boxes | e.g. Category:User Arab | |
Overview & relation ISO – Unicode |
en:Wikipedia | {{ISO 15924 script codes and Unicode}} | |||||
| Redirect | en:Wikipedia | Redirect template | {{R from ISO 15924 code}} | Redirects | |||
| Overview | en:Wikipedia | Overview for templates check | {{ISO 15924/overview}} | ||||
| Subpages | en:Wikipedia | list | Special:PrefixIndex/Template:ISO_15924 | ||||
| |||||||
ISO updates[మార్చు]
The ISO list is changed regularly, last years in June and December. Current list is completed As of 9 ఆగస్టు 2011[update]. This list has 160 defined codes (code, number, script name).
- Note: when resolving red links or wrong links, edit
{{ISO 15924/wp-name}}or{{ISO 15924/wp-category}}. That is where the connection between ISO code and Wikipedia names is made.
We here at Wikipedia do not and can not decide over ISO 15924. End of story.
Sources[మార్చు]
See also[మార్చు]
References[మార్చు]
- ↑ http://www.unicode.org/iso15924/iso15924-codes.html
- ↑ http://www.unicode.org/iso15924/iso15924-text.html (downloadable flat textfile)