# Help:Extension:ParserFunctions/fr

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L'extension ParserFunctions ajoute 11 fonctions supplémentaires au parseur, qui s'additionnent aux fonctions des mots magiques présentes de base dans MediaWiki. Ces extensions se présentent ainsi :

{{#nom_de_la_fonction: argument 1 | argument 2 | argument 3 ... }}

## #expr

Type Opérateurs
Regroupement (parenthèses) ( )
Nombres 1234.5   e (2.718)   pi (3.142)
Opérateurs binaires e   Opérateurs unaires +,-
Unaires not ceil trunc floor abs exp ln sin cos tan acos asin atan
Binaires ^
* / div mod
+ -
Arrondi round
Logiques = != <> > < >= <=
and
or

La fonction #expr: calcule des expressions mathématiques, puis retourne la valeur calculée.

{{#expr: expression }}

Les opérateurs utilisables dans les calculs avec #expr: sont listés ci-contre. Voir Help:Calculation pour plus de détails sur un opérateur. La précision et le format du résultat retourné dépendent du système d'exploitation du serveur sur lequel est installé le Wiki, ainsi que du format de nombre du langage du site.

Dans un calcul booléen, zéro équivaut à False et toute autre valeur différente de zéro (positive ou négative) équivaut à un True.

{{#expr: 1 and -1 }}1
{{#expr: 1 and 0 }}0

Si il n'y a aucune expression en entrée, la fonction retournera une chaîne vide. Toute expression invalide retournera le message d'erreur correspondant, consultables avec la fonction #iferror.

{{#expr: }}
{{#expr: 1+ }}Expression error: Missing operand for +.
{{#expr: 1 foo 2 }}Expression error: Unrecognized word "foo".

La position avant ou après un nombre d'une opérande d'addition et de soustraction est importante : un signe mal placé ne seront pas considéré comme une erreur mais comme l'indicateur que le nombre est positif ou négatif :

{{#expr: +1 }}1
{{#expr: -1 }}-1
{{#expr: + 1 }}1
{{#expr: - 1 }}-1

Note : si vous utilisez le résultat d'un mot magique dans une expression, vous devrez préciser le format de ce résultat pour en retirer les virgules et traduire les nombres. Par exemple : à partir du mot magique {{NUMBEROFUSERS}}, nous obtenons {{NUMBEROFUSERS}}. Pour pouvoir utiliser {{NUMBEROFUSERS}} dans une expression, il faudra préciser {{NUMBEROFUSERS}}. Cette traduction est particulièrement importante dans les langues où les nombres sont traduits, comme en Bengali où {{NUMBEROFUSERS}} donne ৩০,০৬১.

{{#expr:{{NUMBEROFUSERS}}+100}}Expression error: Unrecognized punctuation character "�".
{{#expr:{{formatnum:{{NUMBEROFUSERS}}|R}}+100}}1743955

 Avertissement: L'opérateur mod donne de mauvais résultats pour certaines valeurs du deuxième argument. {{#expr: 123 mod (2^64-1)}} → Division by zero. (produit une chaîne vide ; devrait être 123)
If you want to do calculations based on dates (If current date and time is after some other date and time), first convert the time to number of seconds after January 1, 1970 using {{#time: U }}, then you can simply add and subtract dates.

### Rounding

Rounds off the number on the left to a multiple of 1/10 raised to a power, with the exponent equal to the truncated value of the number given on the right.

Pour arrondir au supérieur ou à l'inférieur, utilisez respectivement les opérateurs unaires ceil et floor.

Test case Result Method of rounding
{{#expr: 1/3 round 5 }} 0.33333 Final digit is < 5, so no apparent rounding occurs
{{#expr: 1/6 round 5 }} 0.16667 Final digit is >= 5, so it is rounded up
{{#expr: 8.99999/9 round 5 }} 1 Again, the result is rounded up on the last digit, which results in additional rounding
{{#expr: 1234.5678 round -2 }} 1200 Rounded to nearest 100 because negative values round to the left of the decimal point
{{#expr: 1234.5678 round 2 }} 1234.57 Rounded to nearest 100th since positive values round to the right of the decimal point
{{#expr: 1234.5678 round 2.3 }} 1234.57 Decimals in the rounding index make no difference in the rounded result
{{#expr: trunc 1234.5678 }} 1234 Decimal portion truncated (chopped off)
Rounding to the nearest integer
{{#expr: 1/3 round 0 }} 0 Down to the nearest integer, which is zero
{{#expr: 1/2 round 0 }} 1 Up to the nearest integer, which is one
{{#expr: 3/4 round 0 }} 1 Up to the nearest integer, which is one
{{#expr: -1/3 round 0 }} -0 Up to the nearest integer, which is zero
 Avertissement: The negative sign on zero could cause equality mismatches
{{#expr: -1/2 round 0 }} -1 Down to the nearest integer, which is negative one
{{#expr: -3/4 round 0 }} -1 Down to the nearest integer, which is negative one
Rounding up or down with ceil and floor
{{#expr: ceil(1/3) }} 1 Up to the next larger integer, which is one
{{#expr: floor(1/3) }} 0 Down to the next smaller integer, which is zero
{{#expr: ceil(-1/3) }} -0 Up to the next larger integer, which is zero
 Avertissement: The negative sign on zero could cause equality mismatches
{{#expr: floor(-1/3) }} -1 Down to the next smaller integer, which is negative one
{{#expr: ceil 1/3 }} 0.33333333333333 Not rounded since 1 already is an integer
 Avertissement: Interpreted as (ceil 1)/3, not ceil(1/3) as you might expect

## #if

This function evaluates a test string and determines whether or not it is empty. A test string containing only white space is considered to be empty.

{{#if: chaîne test | valeur si la chaîne test n'est pas vide | valeur si la chaîne test est vide (ou seulement des espaces) }}
{{#if: premier paramètre | deuxième paramètre | troisième paramètre }}

Cette fonction test d'abord si le premier paramètre n'est pas vide. S'il n'est pas vide, la fonction affiche le deuxième argument. Si le premier paramètre est vide ou ne contient que des caractères d'espacement (espaces, retour à la ligne, etc...) elle affiche le troisième argument.

{{#if: | yes | no}}no
{{#if: string | yes | no}}yes
{{#if:      | yes | no}}no
{{#if:

| yes | no}}
no

La chaîne test est toujours interprétée comme du texte pur, ainsi les expressions mathématiques ne sont pas évaluées.

{{#if: 1==2 | yes | no }}yes
{{#if: 0 | yes | no }}yes

Either or both the return values may be omitted:

{{#if: foo | yes }}yes
{{#if: | yes }}
{{#if: foo | | no}}

The function may be nested. To do so, nest the inner #if function in its full form in place of the third parameter of the enclosing #if function. A depth of at least seven levels of nesting is possible, although that may depend on the wiki or a memory limit.

• Example: {{#if: test string | value if test string is not empty | {{#if: test string | value if test string is not empty | value if test string is empty (or only white space) }} }}

See Help:Parser functions in templates for more examples of this parser function.

## #ifeq

This parser function compares two strings and determines whether they are identical.

{{#ifeq: string 1 | string 2 | value if identical | value if different }}

Si les deux chaînes sont des valeurs numériques valides, les chaînes sont comparées numériquement :

{{#ifeq: 01 | 1 | equal | not equal}}equal
{{#ifeq: 0 | -0 | equal | not equal}}equal
{{#ifeq: 1e3 | 1000 | equal | not equal}}equal
{{#ifeq: {{#expr:10^3}} | 1000 | equal | not equal}}equal

Sinon la comparaison s'effectue comme du texte ; cette comparaison est sensible à la casse :

{{#ifeq: foo | bar | equal | not equal}}not equal
{{#ifeq: foo | Foo | equal | not equal}}not equal
{{#ifeq: "01" | "1" | equal | not equal}}not equal  (compare to similar example above, without the quotes)
{{#ifeq: 10^3 | 1000 | equal | not equal}}not equal  (compare to similar example above, with #expr)

As a practical example, given an existing template Template:Size used to set standard short and long sizes, defined as:

{{#ifeq: {{{1|}}} | short | 20 | 40}}


the following ensue:

{{size|short}}20
{{size|20}}40
{{size}}40
 Avertissement: Numerical comparisons with #ifeq and #switch are not equivalent to comparisons with #expr: {{#ifeq: 12345678901234567 | 12345678901234568 | equal | not equal}} → not equal {{#switch: 12345678901234567 | 12345678901234568 = equal | not equal}} → not equal because PHP compares two numbers of type integer, whereas: {{#ifexpr: 12345678901234567 = 12345678901234568 | equal | not equal}} → equal because MediaWiki converts literal numbers in expressions to type float, which, for large integers like these, involves rounding.
 Avertissement: Tags and parser functions inside parser tags (such as ) are temporarily replaced by a unique code. This affects comparisons: {{#ifeq: foo | foo | equal | not equal}} → not equal {{#ifeq: $foo$ | $foo$ | equal | not equal}} → not equal {{#ifeq: {{#tag:math|foo}} | {{#tag:math|foo}} | equal | not equal}} → not equal {{#ifeq: [[foo]] | [[foo]] | equal | not equal}} → equal If the strings to be compared are given as equal calls to the same template containing such tags, then the condition is true, but in the case of two templates with identical content containing such tags it is false.
 Avertissement: Be careful when comparing against the current page title using the page name magic words. These magic words convert special characters into numeric HTML entities. This may result in misleading results. For example, if you are on a page titled "L'Aquila"... {{#ifeq: L'Aquila | {{FULLPAGENAME}} | equal | not equal}} → not equal To work around this, apply the magic word to both parameters: {{#ifeq: {{FULLPAGENAME: L'Aquila}} | {{FULLPAGENAME}} | equal | not equal}} → equal

## #iferror

This function takes an input string and returns one of two results; the function evaluates to true if the input string contains an HTML object with class="error", as generated by other parser functions such as #expr, #time and #rel2abs, template errors such as loops and recursions, and other "failsoft" parser errors.

{{#iferror: test string | value if error | value if correct }}

One or both of the return strings can be omitted. If the correct string is omitted, the test string is returned if it is not erroneous. If the error string is also omitted, an empty string is returned on an error:

{{#iferror: {{#expr: 1 + 2 }} | error | correct }}correct
{{#iferror: {{#expr: 1 + X }} | error | correct }}error
{{#iferror: {{#expr: 1 + 2 }} | error }}3
{{#iferror: {{#expr: 1 + X }} | error }}error
{{#iferror: {{#expr: 1 + 2 }} }}3
{{#iferror: {{#expr: 1 + X }} }}
{{#iferror: <strong class="error">a</strong> | error | correct }}error

## #ifexpr

This function evaluates a mathematical expression and returns one of two strings depending on the boolean value of the result:

{{#ifexpr: expression | value if true | value if false }}

The expression input is evaluated exactly as for #expr above, with the same operators being available. The output is then evaluated as a boolean expression.

An empty input expression evaluates to false:

{{#ifexpr: | yes | no}}no

As mentioned above, zero evaluates to false and any nonzero value evaluates to true, so this function is equivalent to one using #ifeq and #expr only:

{{#ifeq: {{#expr: expression }} | 0 | value if false | value if true }}

except for an empty or wrong input expression (an error message is treated as an empty string; it is not equal to zero, so we get value if true).

{{#ifexpr: = | yes | no }}Expression error: Unexpected = operator.

comparing

{{#ifeq: {{#expr: = }} | 0 | no | yes }}yes

Either or both the return values may be omitted; no output is given when the appropriate branch is left empty:

{{#ifexpr: 1 > 0 | yes }}yes
{{#ifexpr: 1 < 0 | yes }}
{{#ifexpr: 0 = 0 | yes }}yes
{{#ifexpr: 1 > 0 | | no}}
{{#ifexpr: 1 < 0 | | no}}no
{{#ifexpr: 1 > 0 }}

## #ifexist

This function takes an input string, interprets it as a page title, and returns one of two values depending on whether or not the page exists on the local wiki.

{{#ifexist: page title | value if exists | value if doesn't exist }}

The function evaluates to true if the page exists, whether it contains content, is visibly blank (contains meta-data such as category links or magic words, but no visible content), is blank, or is a redirect. Only pages that are redlinked evaluate to false, including if the page used to exist but has been deleted.

{{#ifexist: Help:Extension:ParserFunctions/fr | exists | doesn't exist }}exists
{{#ifexist: XXHelp:Extension:ParserFunctions/frXX | exists | doesn't exist }}doesn't exist

The function evaluates to true for system messages that have been customized, and for special pages that are defined by the software.

{{#ifexist: Special:Watchlist | exists | doesn't exist }}exists
{{#ifexist: Special:CheckUser | exists | doesn't exist }}exists (because the CheckUser extension is installed on this wiki)
{{#ifexist: MediaWiki:Copyright | exists | doesn't exist }}exists (because MediaWiki:Copyright has been customized)

If a page checks a target using #ifexist:, then that page will appear in the Special:WhatLinksHere list for the target page. So if the code {{#ifexist:Foo}} were included live on this page (Help:Extension:ParserFunctions/fr), Special:WhatLinksHere/Foo will list Help:Extension:ParserFunctions/fr.

On wikis using a shared media repository, #ifexist: can be used to check if a file has been uploaded to the repository, but not to the wiki itself:

{{#ifexist: File:Example.png | exists | doesn't exist }}doesn't exist
{{#ifexist: Image:Example.png | exists | doesn't exist }}doesn't exist
{{#ifexist: Media:Example.png | exists | doesn't exist }}exists

If a local description page has been created for the file, the result is exists for all of the above.

#ifexist: does not work with interwiki links.

### ifexist limits

#ifexist: is considered an "expensive parser function"; only a limited number of which can be included on any one page (including functions inside transcluded templates). When this limit is exceeded, any further #ifexist: functions automatically return false, whether the target page exists or not, and the page is categorized into Category:Pages with too many expensive parser function calls. The name of the tracking category may vary depending on the content language of your wiki.

For some use cases it is possible to emulate the ifexist effect with css, by using the selectors a.new (to select links to unexisting pages) or a:not(.new) (to select links to existing pages). Furthermore, since the number of expensive parser functions that can be used on a single page is controlled by $wgExpensiveParserFunctionLimit, one can also increase the limit in LocalSettings.php if needed. ## #rel2abs This function converts a relative file path into an absolute filepath. {{#rel2abs: path }} {{#rel2abs: path | base path }} Within the path input, the following syntax is valid: • . → the current level • .. → "go up one level" • /foo → "go down one level into the subdirectory /foo" If the base path is not specified, the full page name of the page will be used instead: {{#rel2abs: /quok | Help:Foo/bar/baz }}Help:Foo/bar/baz/quok {{#rel2abs: ./quok | Help:Foo/bar/baz }}Help:Foo/bar/baz/quok {{#rel2abs: ../quok | Help:Foo/bar/baz }}Help:Foo/bar/quok {{#rel2abs: ../. | Help:Foo/bar/baz }}Help:Foo/bar Invalid syntax, such as /. or /./, is ignored. Since no more than two consecutive full stops are permitted, sequences such as these can be used to separate successive statements: {{#rel2abs: ../quok/. | Help:Foo/bar/baz }}Help:Foo/bar/quok {{#rel2abs: ../../quok | Help:Foo/bar/baz }}Help:Foo/quok {{#rel2abs: ../../../quok | Help:Foo/bar/baz }}quok {{#rel2abs: ../../../../quok | Help:Foo/bar/baz }}Error: Invalid depth in path: "Help:Foo/bar/baz/../../../../quok" (tried to access a node above the root node). ## #switch This function compares one input value against several test cases, returning an associated string if a match is found. {{#switch: comparison string | case = result | case = result | ... | case = result | default result }}  Examples: {{#switch: baz | foo = Foo | baz = Baz | Bar }}Baz {{#switch: foo | foo = Foo | baz = Baz | Bar }}Foo {{#switch: zzz | foo = Foo | baz = Baz | Bar }}Bar #switch allows an editor to add information in one template and this information will be visible in several other templates which all have different formatting. ### Default The default result is returned if no case string matches the comparison string: {{#switch: test | foo = Foo | baz = Baz | Bar }}Bar In this syntax, the default result must be the last parameter and must not contain a raw equals sign. {{#switch: test | Bar | foo = Foo | baz = Baz }} → {{#switch: test | foo = Foo | baz = Baz | B=ar }} → Alternatively, the default result may be explicitly declared with a case string of "#default". {{#switch: comparison string | case = result | case = result | ... | case = result | #default = default result }}  Default results declared in this way may be placed anywhere within the function: {{#switch: test | foo = Foo | #default = Bar | baz = Baz }}Bar If the default parameter is omitted and no match is made, no result is returned: {{#switch: test | foo = Foo | baz = Baz }} ### Grouping results It is possible to have 'fall through' values, where several case strings return the same result string. This minimizes duplication. {{#switch: comparison string | case1 = result1 | case2 | case3 | case4 = result2 | case5 = result3 | case6 | case7 = result4 | #default = default result }}  Here cases 2, 3 and 4 all return result2; cases 6 and 7 both return result4 ### Comparison behavior As with #ifeq, the comparison is made numerically if both the comparison string and the case string being tested are numeric; or as a case-sensitive string otherwise: {{#switch: 0 + 1 | 1 = one | 2 = two | three}} → three {{#switch: {{#expr: 0 + 1}} | 1 = one | 2 = two | three}} → one {{#switch: a | a = A | b = B | C}} → A {{#switch: A | a = A | b = B | C}} → C A case string may be empty: {{#switch: | = Nothing | foo = Foo | Something }}Nothing Once a match is found, subsequent cases are ignored: {{#switch: b | f = Foo | b = Bar | b = Baz | }}Bar  Avertissement: Numerical comparisons with #switch and #ifeq are not equivalent with comparisons in expressions (see also above): {{#switch: 12345678901234567 | 12345678901234568 = A | B}} → B {{#ifexpr: 12345678901234567 = 12345678901234568 | A | B}} → A ### Raw equal signs "Case" strings cannot contain raw equals signs. To work around this, create a template {{=}} containing a single equals sign: =. Example: {{#switch: 1=2 | 1=2 = raw | 1<nowiki>=</nowiki>2 = nowiki | 1&#61;2 = html | 1{{=}}2 = template | default }}html Note: For a simple real life example of the use of this function, check Template:NBA color. Two complex examples can be found at Template:Extension and Template:BOTREQ. ### Replacing #ifeq #switch can be used to reduce expansion depth. For example: • {{#switch:{{{1}}} |condition1=branch1 |condition2=branch2 |condition3=branch3 |branch4}} is equivalent to • {{#ifeq:{{{1}}}|condition1 |branch1 |{{#ifeq:{{{1}}}|condition2 |branch2 |{{#ifeq:{{{1}}}|condition3 |branch3 |branch4}}}}}} (i.e. {{#ifeq:{{{1}}}|condition1 |<!--then-->branch1 |<!--else-->{{#ifeq:{{{1}}}|condition2 |<!--then-->branch2 |<!--else-->{{#ifeq:{{{1}}}|condition3 |<!--then-->branch3 |<!--else-->branch4}}}}}}) ## #time Code Description Current output (Purge this page's cache to update) Year Y 4-digit year. 2014 y 2-digit year. 14 L 1 if it's a leap year, 0 if not. 0 o ¹ ISO-8601 year of the specified week. ² 2014 ³ ¹ Requires PHP 5.1.0 and newer and rev:45208. ² This has the same value as Y, except that if the ISO week number (W) belongs to the previous or next year, that year is used instead. ³ Will output literal o if ¹ not fulfilled. Month n Month index, not zero-padded. 9 m Month index, zero-padded. 09 M An abbreviation of the month name, in the site language. sept F The full month name in the site language. septembre xg Output the full month name in the genitive form for site languages that distinguish between genitive and nominative forms. This option is useful for many Slavic languages like Polish, Russian, Belarusian, Czech, Slovak, Slovene, Ukrainian, etc. For Polish: (nominative) {{#time:d F Y|20 June 2010|pl}} → 20 czerwiec 2010 (genitive) {{#time:d xg Y|20 June 2010|pl}} → 20 czerwca 2010 Week W ISO 8601 week number, zero-padded. 36 Day j Day of the month, not zero-padded. 1 d Day of the month, zero-padded. 01 z Day of the year (January 1 = 0). Note: To get the ISO day of the year add 1. 243 D An abbreviation for the day of the week. Rarely internationalized. Lun. l The full weekday name. Rarely internationalized. lundi N ISO 8601 day of the week (Monday = 1, Sunday = 7). 1 w Number of the day of the week (Sunday = 0, Saturday = 6). 1 Hour a "am" during the morning (00:00:00 → 11:59:59), "pm" otherwise (12:00:00 → 23:59:59). pm A Uppercase version of a above. PM g Hour in 12-hour format, not zero-padded. 11 h Hour in 12-hour format, zero-padded. 11 G Hour in 24-hour format, not zero-padded. 23 H Hour in 24-hour format, zero-padded. 23 Minutes and seconds i Minutes past the hour, zero-padded. 27 s Seconds past the minute, zero-padded. 59 U Seconds since January 1 1970 00:00:00 GMT. 1409614079 Timezone (as of 1.22wmf2) e Timezone identifier. UTC I Whether or not the date is in daylight savings time. 0 O Difference to Greenwich time (GMT) +0000 P Difference to Greenwich time (GMT), with colon +00:00 T Timezone abbreviation. UTC Z Timezone offset in seconds. 0 Miscellaneous t Number of days in the current month. 30 c ISO 8601 formatted date, equivalent to Y-m-dTH:i:s+00:00. 2014-09-01T23:27:59+00:00 r RFC 5322 formatted date, equivalent to D, j M Y H:i:s +0000, with weekday name and month name not internationalized. Mon, 01 Sep 2014 23:27:59 +0000 Non-Gregorian calendars Islamic xmj Day of the month. 6 xmF Full month name. Dhou al qi’da xmn Month index. 11 xmY Full year. 1435 Iranian (Jalaly) xij Day of the month. 10 xiF Full month name. Shahrivar xin Month index. 6 xiY Full year. 1393 xiy 2-digit year. 93 Hebrew xjj Day of the month. 6 xjF Full month name. Éloul xjt Number of days in month. 29 xjx Genitive form of the month name. Éloul xjn Month number. 12 xjY Full year. 5774 Thai solar xkY Full year in Thai solar calendar. Note : For years before 1941 the dates in Jan-Mar range are not calculated properly. 2557 Minguo/Juche year xoY Full year. 103 Japanese nengo xtY Full year. 平成26 Flags xn Format the next numeric code as a raw ASCII number. In the Hindi language, {{#time:H, xnH}} produces ०६, 06. xN Like xn, but as a toggled flag, which endures until the end of the string or until the next appearance of xN in the string. xr Format the next number as a roman numeral. Only works for numbers up to 10,000 (upto 3,000 in pre MediaWiki 1.20). {{#time:xrY}} → MMXIV xh Format the next number as a Hebrew numeral. {{#time:xhY}} → ב'י"ד This parser function takes a date and/or time (in the Gregorian calendar) and formats it according to the syntax given. A date/time object can be specified; the default is the value of the magic word {{CURRENTTIMESTAMP}} – that is, the time the page was last rendered into HTML. {{#time: format string }} {{#time: format string | date/time object }} {{#time: format string | date/time object | language code }} The list of accepted formatting codes is given in the table to the right. Any character in the formatting string that is not recognized is passed through unaltered; this applies also to blank spaces (the system does not need them for interpreting the codes). There are also two ways to escape characters within the formatting string: 1. A backslash followed by a formatting character is interpreted as a single literal character 2. Characters enclosed in double quotes are considered literal characters, and the quotes are removed. In addition, the digraph xx is interpreted as a single literal "x". {{#time: Y-m-d }}2014-09-01 {{#time: [[Y]] m d }}2014 09 01 {{#time: [[Y (year)]] }}2014 (14UTCpmMon, 01 Sep 2014 23:27:59 +0000) {{#time: [[Y "(year)"]] }}2014 (year) {{#time: i's" }}27'59" The date/time object can be in any format accepted by PHP's strtotime() function. Both absolute (eg 20 December 2000) and relative (eg +20 hours) times are accepted. {{#time: r|now}}Mon, 01 Sep 2014 23:27:59 +0000 {{#time: r|+2 hours}}Tue, 02 Sep 2014 01:27:59 +0000 {{#time: r|now + 2 hours}}Tue, 02 Sep 2014 01:27:59 +0000 The language code in ISO 639-3 (?) allows the string to be displayed in the chosen language {{#time:d F Y|1988-02-28|nl}}28 februari 1988 {{#time:l|now|uk}}понеділок {{#time:d xg Y|20 June 2010|pl}}20 czerwca 2010 If you've calculated a Unix timestamp, you may use it in date calculations by pre-pending an @ symbol. {{#time: U | now }}1409614079 {{#time: r|@1409614079}}Mon, 01 Sep 2014 23:27:59 +0000  Avertissement: The range of acceptable input is 1 January 0111 → 31 December 9999. For the years 100 through 110 the output is inconsistent, Y and leap years are like the years 100-110, r, D, l and U are like interpreting these years as 2000-2010. {{#time: d F Y | 29 Feb 0100 }} → 01 mars 0100 (correct, no leap year), but {{#time: r | 29 Feb 0100 }} → Tue, 01 Mar 0100 00:00:00 +0000 (wrong, even if 100 is interpreted as 2000, because that is a leap year) {{#time: d F Y | 15 April 10000 }} → Error: Invalid time. {{#time: r | 10000-4-15 }} → Sat, 15 Apr 2000 10:00:00 +0000 Year numbers 0-99 are interpreted as 2000-2069 and 1970-1999, even when written with leading zeros: {{#time: d F Y | 1 Jan 0069 }} → 01 janvier 0069 {{#time: d F Y | 1 Jan 0070 }} → 01 janvier 0070 The weekday is supplied for the years 100-110 and from 1753, for the years 111-1752 the r-output shows "Unknown" and the l-output "<>". As a consequence, the r-output is not accepted as input for these years. Full or partial absolute dates can be specified; the function will "fill in" parts of the date that are not specified using the current values: {{#time: Y | January 1 }}2014  Avertissement: The fill-in feature is not consistent; some parts are filled in using the current values, others are not: {{#time: Y m d H:i:s | June }} → 2014 06 01 00:00:00 Gives the start of the day, but the current day of the month and the current year. {{#time: Y m d H:i:s | 2003 }} → 2003 09 01 00:00:00 Gives the start of the day, but the current day of the year. With MediaWiki r86805 - Code Review, a four-digit number is always interpreted as a year, never as hours and minutes: {{#time: Y m d H:i:s | 1959 }}1959 09 01 00:00:00 A six-digit number is interpreted as hours, minutes and seconds if possible, but otherwise as an error (not, for instance, a year and month): {{#time: Y m d H:i:s | 195909 }}2014 09 01 19:59:09 Input is treated as a time rather than a year+month code. {{#time: Y m d H:i:s | 196009 }}Error: Invalid time. Although 19:60:09 is not a valid time, 196009 is not interpreted as September 1960. The function performs a certain amount of date mathematics: {{#time: d F Y | January 0 2008 }}31 décembre 2007 {{#time: d F | January 32 }}Error: Invalid time. {{#time: d F | February 29 2008 }}29 février {{#time: d F | February 29 2007 }}01 mars {{#time:Y-F|now -1 months}}2014-août The total length of the format strings of the calls of #time is limited to 6000 characters [1]. #### Time Zone issue There is a bug in this #time parser function (more specifically in PHP DateTime) that does not allow the passing-in of non-integers as relative time zone offsets. This issue does not apply when using an on-the-hour time zone, such as EDT. For example: • {{#time:g:i A | -4 hours }} ==> 7:27 PM However, Venezuela is on a -4.5 hours time offset from UTC, and thus using its time zone will not normally allow the correct calculation of a relative time zone offset. Here's what happens: • {{#time:g:i A | -4.5 hours }} ==> 8:27 AM To workaround this issue, simply convert the time into minutes or seconds, like this: • {{#time:g:i A | -270 minutes }} ==> 6:57 PM • {{#time:g:i A | -16200 seconds }} ==> 6:57 PM (Tim Starling, the developer of this function, provided the exact syntax for this solution.) ## #timel This function is identical to {{#time: ... }}, except that it uses the local time of the wiki (as set in$wgLocaltimezone) when no date is given.

{{#time: Y-m-d }}2014-09-01
{{#timel: Y-m-d }}2014-09-01
{{#time: Y F d h:i:s}}2014 septembre 01 11:27:59
{{#timel: Y F d h:i:s}}2014 septembre 01 11:27:59

## #titleparts

This function separates a pagetitle into segments based on slashes, then returns some of those segments as output.

{{#titleparts: pagename | number of segments to return | first segment to return }}

If the number of segments parameter is not specified, it defaults to "0", which returns all the segments from first segment (included). If the first segment parameter is not specified or is "0", it defaults to "1":

{{#titleparts: Talk:Foo/bar/baz/quok }}Talk:Foo/bar/baz/quok
{{#titleparts: Talk:Foo/bar/baz/quok | 1 }}Talk:Foo
{{#titleparts: Talk:Foo/bar/baz/quok | 2 }}Talk:Foo/bar
{{#titleparts: Talk:Foo/bar/baz/quok | 2 | 2 }}bar/baz
{{#titleparts: Talk:Foo/bar/baz/quok | | 2 }}bar/baz/quok

Negative values are accepted for both values. Negative values for number of segments effectively 'strips' segments from the end of the string. Negative values for first segment translates to "start with this segment counting from the right":

{{#titleparts: Talk:Foo/bar/baz/quok | -1 }}Talk:Foo/bar/baz Strips one segment from the end of the string. See also {{BASEPAGENAME}}.
{{#titleparts: Talk:Foo/bar/baz/quok | -4 }}Strips all 4 segments from the end of the string
{{#titleparts: Talk:Foo/bar/baz/quok | -5 }}Strips 5 segments from the end of the string (more than exist)
{{#titleparts: Talk:Foo/bar/baz/quok | | -1 }}quok Returns last segment. See also {{SUBPAGENAME}}.
{{#titleparts: Talk:Foo/bar/baz/quok | -1 | 2 }}bar/baz Strips one segment from the end of the string, then returns the second segment and beyond
{{#titleparts: Talk:Foo/bar/baz/quok | -1 | -2 }}baz Start copying at the second last element; strip one segment from the end of the string

The string is split a maximum of 25 times; further slashes are ignored and the 25th element will contain the rest of the string. The string is also limited to 255 characters, as it is treated as a page title:

{{#titleparts: a/b/c/d/e/f/g/h/i/j/k/l/m/n/o/p/q/r/s/t/u/v/w/x/y/z/aa/bb/cc/dd/ee | 1 | 25 }}y/z/aa/bb/cc/dd/ee

If for whatever reason you needed to push this function to its limit, although very unlikely, it is possible to bypass the 25 split limit by nesting function calls:

{{#titleparts: {{#titleparts: a/b/c/d/e/f/g/h/i/j/k/l/m/n/o/p/q/r/s/t/u/v/w/x/y/z/aa/bb/cc/dd/ee| 1 | 25 }} | 1 | 2}}z

Avertissement: You can use #titleparts as a small "string parser & converter", but consider that it returns the first substring capitalized.

{{#titleparts: one/two/three/four|1|1 }}One
{{#titleparts: one/two/three/four|1|2 }}two
• If lower case is needed, use lc: function to control output.
{{lc: {{#titleparts: one/two/three/four|1|1 }} }}one
• You can prepend a 'dummy' slash at the beginning of the string to get the correct first substring capitalization (uppercase or lowercase). Use |2 instead of |1 for first segment to return.
{{#titleparts: /one/two/three/four|1|2 }}one
{{#titleparts: /One/two/three/four|1|2 }}One

Avertissement: Certain characters that are illegal in a page title will cause #titleparts to not parse the string.

{{#titleparts: {one/two} | 1 | 1 }}{one/two}. Does not produce the expected: {one

Avertissement:

{{#titleparts: [[page]]/123 | 1 | 2 }}page/123

Avertissement: This function does not degrade gracefully if your input exceeds 255 characters. If the inputted string is 256 characters long or more, this function will simply toss the string back at you.

## Strings parsing

An extension is available for additional string parsing, see Extension:StringFunctions.

## General points

### Substitution

Parser functions can be substituted by prefixing the hash character with subst::

{{subst:#ifexist: Help:Extension:ParserFunctions/fr | [[Help:Extension:ParserFunctions/fr]] | Help:Extension:ParserFunctions/fr }} → the code [[Help:Extension:ParserFunctions/fr]] will be inserted in the wikitext since the page Help:Extension:ParserFunctions/fr exists.
 Avertissement: The results of substituted parser functions are undefined if the expressions contain unsubstituted volatile code such as variables or other parser functions. For consistent results, all the volatile code in the expression to be evaluated must be substituted. See Help:Substitution.

### Redirects

Especially {{#time:…|now-…}} could be handy in redirects to pages including dates, but this does not work.

### Escaping pipe characters in tables

Parser functions will mangle wikitable syntax and pipe characters (|), treating all the raw pipe characters as parameter dividers. To avoid this, most wikis create the template Template:! with its contents only a raw pipe character (|) or use the {{!}} magic word which is available since MW 1.24. This 'hides' the pipe from the MediaWiki parser, ensuring that it is not considered until after all the templates and variables on a page have been expanded. It will then be interpreted as a table row or column separator. Alternatively, raw HTML table syntax can be used, although this is less intuitive and more error-prone.

You can also escape the pipe character for display as a plain, uninterpreted character using an HTML entity: &#124; .

Description You type You get
Escaping pipe character as table row/column separator (most wikis)
{{!}}

|
Escaping pipe character as a plain character
&#124;

|

### Stripping whitespace

Whitespace, including newlines, tabs, and spaces, is stripped from the beginning and end of all the parameters of these parser functions. If this is not desirable, comparison of strings can be done after putting them in quotation marks.

{{#ifeq: foo            |            foo | equal | not equal }}

equal
{{#ifeq: "foo           " | "           foo" | equal | not equal }}

not equal

For preventing trimming then- and else-parts, see m:Template:If. Some people use also <nowiki> </nowiki> instead of spaces.