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विकिपीडिया:WikiProject Flag Template

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This WikiProject is responsible for the template system used to create flag icons, with or without associated wikilinks. This project is only concerned with the implementation of these templates.

Main templates

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Template:Flagicon

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Produces a small image of the named flag.

Example: {{flagicon|Japan}} →  

Template:Flag

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Produces a small image of the named flag, plus a wikilink to the associated article.

Example: {{flag|United Kingdom}} →   United Kingdom

Template:Flagcountry

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Similar to flag, but always uses the preferred display text for the wikilinked article, even if alias names (e.g. country codes) are used.

Example: {{flagcountry|BRA}} →   ब्रासील

"Shortcut" flag templates

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Many countries also have individual flag templates, named using standard three letter country codes so as to offer "shortcut" alternatives to the standard templates. This is a mixed blessing; some country codes (like "USA") are widely known and the corresponding shortcut templates (i.e. {{USA}}) offer convenience, but some country codes are relatively obscure, so wiki markup would likely be clearer if the country names were spelled out in full. Also, the shortcut templates do not offer the ability to use historical flag variants (described below), and are therefore less flexible.

Example: {{BEL}} →   Belgium (equivalent to {{flag|Belgium}})

See Wikipedia:Inline templates linking country articles for a complete list.

Flag names

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The first (positional) parameter for these templates specifies the country (or other entity) to be used for the flag image. These actually identify additional templates that individually store information specific to that country. For example, the image name and main article name used by {{flag|नार्वे}} (to produce   नार्वे) is stored in फलकम्:राष्ट्रतथ्यानि नार्वे। The complete set of these "country data" templates is found in Category:Country data templates.

Note that there are country data templates for many entities that are not considered countries, such as international organizations or sub-national entities. The use of "country" in these template names is only because the original implementation of the flag template system was built upon Template:Country A better name might have been "flag data", but it is likely too late for that change now.

Some examples of non-country flag templates are:


Many country data templates also exist for historical nations, and these can be used to produce the historical flags with wikilinks to the appropriate articles. Some examples are:

Alias names

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For added convenience, many flags can be identified by an alias name, typically a three-letter country code. For example, instead of {{flagicon|France}}, you could simply use {{flagicon|FRA}} to produce  .

Alias names are available for almost every nation listed in ISO 3166-1 alpha-3, the list of IOC country codes, and the list of FIFA country codes. For example, {{flagicon|DEU}} (ISO) and {{flagicon|GER}} (IOC and FIFA) both produce फलकम्:Country data DEU. A small handful of other well-known abbreviations are also available (such as UK, EU, and USSR).

Alias names are implemented as redirects in the template namespace. For example, Template:Country data VEN is a redirect to Template:Country data Venezuela. The complete set of these redirects is listed in Category:Country data redirects, and the available alias redirect(s) for a given country data template (if any) are also documented on that template's page.

  Please do not create redirect aliases with uncommon abbreviations, especially for countries or regions that do not have standard country codes. Wikicode is much easier to read if the full name is used. Even some of the standard country codes are not widely known!

When using country code aliases, template flag will display this value for the wikilink's display text. For example:

  • {{flag|USA}} →   USA
  • {{flag|UK}} →   UK
  • {{flag|CHN}} →   CHN

Note that in each case, the target wikilink points to the correct article name (i.e. United States, United Kingdom, and People's Republic of China, respectively) but the display text matches the input parameter to template flag. This may be the desired effect, such as in column headings of a large table, but if the full name is wanted, then use Template:Flagcountry instead:

Alias names have a second purpose, which is to provide alternative display text for target wikilinks. For example, the main article linked by Template:Country data East Germany is East Germany, but Template:Country data German Democratic Republic is a redirect alias. Therefore, you can use {{flag|German Democratic Republic}} for फलकम्:Country data German Democratic Republic. Again, note that the target article name for the generated wikilink is still East Germany.

Flag variants

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Many countries have had different flag variations at various periods in their history. The flag template system can accommodate this by storing multiple flag variants inside country data templates. A specific flag variant is selected by specifying an additional parameter to any of the standard flag templates. This parameter is usually given as the second positional parameter to the template, but may also be given as the variant named parameter.

Examples

The set of available flag variants (if any) for a specific country data template are documented on the country data template page itself. Each variant is identified by a short text label, such as empire or 1921 in the examples above. Usually, the label identifies the year in which the flag was introduced, but this is not a mandatory style convention.

  Do not change the name of an existing flag variant label unless you are absolutely certain it is not in use. These labels are not like article names, where redirects are created when an article is renamed. Changing a flag variant label will instantly break any current usage of that label.

Other common parameters

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Size

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The default size for all flag icons created by these templates is 22x20px, with a one pixel border. That is, the icon will be no more than 22 pixels wide, and no more than 20 pixels tall. Most flags have a horizontal orientation, so the 22 pixel width is usually the limiting dimension. These dimensions were carefully chosen to generate the best results when flagicons are used in a bulleted list with the default browser text size.

In certain situations, it might be desirable to use a larger (or smaller) size, and this is enabled with the size named parameter, available with all standard templates.

Examples

Name

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The display text of the target wikilink is usually automatically generated, but can always be over-ridden with the name parameter.

Examples
  • {{flag|South Korea|name=Korea}} →   Korea (this name is used in several sports)
  • {{flag|ROC|name=China}} →   China (China from 1912 to 1949)


Other flag templates

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Similar to flagcountry, but extends the wikilink by adding a suffix after the country name. This is useful when a series of per-country articles exist for a main topic.

Examples

Template:Navy

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Displays the naval ensign of the named country (identified as the naval variant in the corresponding country data template) plus a wikilink to the main article for the country's navy.

Example: {{navy|UK}} →   Royal Navy

National sport team flag templates

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One of the most common instances of flag icon usage on Wikipedia is for national sport teams. Several sets of sport-specific templates have been developed to also use this flag template system:

These templates have intentionally been given terse names because they tend to be used many, many times on individual pages for match results. They completely supersede a set of previously used national team-specific templates. For example, {{fb|ITA}} replaced {{ITAf}}, {{ru|NZL}} replaced {{NZLru}}, etc.

There are often several template variations available for a given sport:

  • with a "w" suffix, links to women's national team articles instead
  • with a "-rt" suffix, renders the flag icon to the right of the nation's name instead of to the left. This formatting style is often used in match results
  • with a -big" suffix, renders the flag icon in larger size and the team name underneath the flag. This formatting style is often used in tables of tournament results.

For example, for football, the following templates are used:

Team Standard Right flag Big flag
Men's national teams {{fb}} {{fb-rt}} {{fb-big}}
Examples फलकम्:Fb फलकम्:Fb-rt फलकम्:Fb-big
Women's national teams {{fbw}} {{fbw-rt}} {{fbw-big}}
Examples फलकम्:Fbw फलकम्:Fbw-rt फलकम्:Fbw-big

User preference to disable display of flag icons

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Users that do not like flag icons can disable them with a preference setting. A CSS class is used within the internal formatting template, and the class setting can be changed from a user's personal monobook.css file.

Flag icon image rendering is disabled by: 

.flagicon { display: none; }

Implementation

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Three types of templates are used by the flag template system, each with a different function:

  1. User-transcluded templates
  2. Country data templates (internal)
  3. Formatting templates (internal)

For example, {{flag|Spain}}, uses:

  1. Template:Flag, to accept input parameters, such as the country name (mandatory) and the optional flag variant, size, and wikilink display name.
  2. Template:Country data Spain, to supply the image name and article name
  3. Template:Flag/core, to actually render the image icon and wikilink

This system architecture means that:

  • all country-specific data is contained within individual country data templates, improving maintainability
  • the formatting wikicode is centralized in a very small number of templates, ensuring consistency

How it works

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There are three steps in each flag template invocation. In the previous example of {{flag|Spain}}, the templates expand as follows:

First, Template:Flag expands to invoke Template:Country data Spain, and ensure that all user-specified parameters are set. The first parameter to the country data template is actually the name of the formatting template. This is the mechanism by which the same country data template can be used with multiple different formatting templates. Therefore, the first step of expansion results in: 

{{country data Spain | flag/core | variant = | size = | name = Spain}}

If the variant (or second positional parameter), the size, and/or name parameters were specified in the user invocation, these would be set to the desired value. For example, {{flag|Spain|1939|name=España}} would expand to: 

{{country data Spain | flag/core | variant = 1939 | size = | name = España}}

Next, the country data template expands to invoke the formatting template, plus add all the country-specific parameters. Going back to the simpler example of {{flag|Spain}}, the second expansion results in: 

{{flag/core | alias = Spain | flag alias = Flag of Spain.svg | name = Spain}}

Lastly, the formatting template is expanded to produce: 

<span class="flagicon">[[File:Flag of Spain.svg|22x20px|border |alt=|link=]]&nbsp;</span>[[Spain]]

Basic country data template structure

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The structure of all country data templates follows a standard pattern, which is extended to include additional parameters only when necessary. The empty boilerplate for all country data templates is as follows: 

{{ {{{1<noinclude>|country showdata</noinclude>}}}
| alias =
| flag alias =
| size = {{{size|}}}
| name = {{{name|}}}
}}

There are two essential values that must be specified:

  1. The alias value identifies the name of the main article associated with the flag.
  2. The flag alias value identifies the image name of the default flag.

The invocation of country showdata on the first line is used to automatically generate the template documentation, as described below. The size = {{{size|}}} and name = {{{name|}}} statements ensure that any user-specified size and/or name values are passed through from the outer template (flag, flagicon, etc.) to the inner formatting template. Omission of these lines from the country data template would cause the size and name functionality to be disabled.

Adding flag variants

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Additional flag variants are specified by individual flag alias statements. The unique label for the variant is the suffix of the parameter name, as flag alias-label (don't forget the hyphen). For example, Template:Country data Mexico has several flag variants, one of which is specified by: 

| flag alias-1934 = Flag of Mexico (1934-1968).png

Therefore, when {{flag|Mexico|1934}} is transcluded, Image:Flag of Mexico (1934-1968).png is rendered. The selection of the flag variant is coded in the formatting templates.

Country data templates with at least one flag variant (in addition to the default) must also have the following line: 

| variant = {{{variant|}}}

Similar to the size and name parameters as described above, this statement is required to pass the variant value (e.g. 1934) from the outer flag template to the inner formatting template. Omission of this line will cause the flag variant selection to fail.

Changing the wikilink display text

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The best results are obtained when the template name matches the article wikilink (as specified by the alias value). For example, Template:Country data Russia contains alias = Russia, which results in a target wikilink to Russia.

However, there are instances where the main article name contains a disambiguation string. For example, Template:Country data Georgia contains alias = Georgia (country). Therefore, {{flag|Georgia}} results in   Georgia. Note that the wikilink is Georgia (country), but the display string is "Georgia", as expected.

In these instances, an additional statement is needed to support Template:Flagcountry properly. The shortname alias parameter should be set to the desired text string, such as shortname alias = Georgia. In effect, the resultant wikilink will be generated as [[alias|shortname alias]], or [[Georgia (country)|Georgia]] in this specific example.

Changing the page being linked to

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To link to a topic-specific page, follow the template with a wikilink. For example, to link to the education system in a table comparing different countries' educational outcomes, you could use 

{{flagicon|Finland}} [[Education in Finland|Finland]]

which would look like this:   Finland.

National sport team template parameters

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Any country data template that will be used with a national team template must include an additional "pass-through" parameter: 

| altlink = {{{altlink|}}}

This parameter is used to form the suffix of the associated wikilink. For example, Template:cr appends "national cricket team" to the country name (alias value), and this process is enabled by the altlink parameter.

In most cases, the flag and display name for national teams corresponds to the same flag and display name normally used for the nation. However, in some instances these can be over-ridden by additional parameters within the country data template. The default wikilink can also be changed in cases where the common naming convention is not used.

Some examples:

In each of these examples, the over-ride parameter (name alias-football, flag alias-field hockey, or link alias-netball) is identified by a unique per-sport variable that is passed from the appropriate sport team template. For example, Template:fb includes altvar = football. Therefore, any country data template that utilizes one or more team sport over-ride parameters must also include: 

| altvar = {{{altvar|}}}

Template documentation

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Country data templates "self-document" themselves through Template:Country showdata. Recall that the first line of each country data template is an invocation to a formatting template, defaulting to country showdata if that parameter is missing: 



For simple country data templates, nothing further needs to be done to document them.  If any flag variants, redirect aliases, etc. are used with the template, they are documented by adding parameters specifically for use by country showdata. These extra parameters are enclosed in a <noinclude>....</noinclude> section as they should not be present for any other invocation of the country data template.

See Template:Country showdata/doc for more information about how to document country data templates.



See also


    
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  • {{flagIOC}} for a similar template used exclusively for Olympic Games related articles, and uses a different internal mechanism than for these templates.
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  • {{Shipboxflag}} for display of flags in ship infoboxes


Internal project templates


    
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Archives


    
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