در حال ویرایش الگو:Citation/توضیحات (بخش)

===Anchors for Harvard referencing templates===
IDs compatible with Harvard referencing templates such as {{الگو|harv}} are computed from the last names of the authors and the year of the cited source. For example, the markup "<code><nowiki>{{یادکرد هاروارد|Wright|Evans|1851|p=ix}}</nowiki></code>" generates the Harvard reference "{{یادکرد هاروارد|Wright|Evans|1851|p=ix}}", which wikilinks to the citation whose markup and appearance are shown below:
* <code><nowiki>{{Citation |last1=Wright |first1=Thomas |last2=Evans |first2=R. H. |title=Historical and Descriptive Account of the Caricatures of James Gillray |location=London |publisher=Henry G. Bohn |year=1851 |oclc=59510372}}</nowiki></code>
* {{Citation |last1=Wright |first1=Thomas |last2=Evans |first2=R. H. |title=Historical and Descriptive Account of the Caricatures of James Gillray |location=London |publisher=Henry G. Bohn |year=1851 |oclc=59510372}}
In this example the {{الگو|citation}} template defines, and the {{الگو|harv}} template uses, the HTML ID "<code>CITEREFWrightEvans1851</code>", composed by concatenating the string "<code>CITEREF</code>" with the last names of the authors and the year. The {{الگو|harvid}} template can be used to generate such IDs, for example, <code><nowiki>{{SfnRef|Wright|Evans|1851}}</nowiki></code> generates "<code>{{SfnRef|Wright|Evans|1851}}</code>".

Related methods which leave only a number in the text are to use the {{الگو|harvnb}} template enclosed in the <nowiki><ref></ref></nowiki> html code, or to use the {{الگو|sfn}} template alone. The example above would be <code><nowiki><ref>{{یادکرد هاروارد بدون پرانتز|Wright|Evans|1851|p=ix}}</ref></nowiki></code> or <code><nowiki>{{پانویس کوتاه‌شده|Wright|Evans|1851|p=ix}}</nowiki></code> both of which generate a footnote, such as
:17. {{یادکرد هاروارد بدون پرانتز|Wright|Evans|1851|p=ix}}

The names of only the first four authors are used; other author names are not concatenated to the ID. If no author names are given, editor names are used instead. For [[#Citing patents|patents]], inventor names are used instead of authors or editors. If these names are not given, this template does not generate an anchor.

Last names are used, as specified by the parameters {{پارا|last1}} (or {{پارا|last}}), {{پارا|last2}}, {{پارا|last3}}, and {{پارا|last4}}, and similarly for {{پارا|editor1-last}} etc. and for {{پارا|inventor1-last}} etc. If a full name is given but no last name is specified, this template falls back on the full name, but this usage is not recommended. For example, in "<code><nowiki>{{Citation | author = Sigmund Freud | title = The Ego and the Id | year = 1923}}</nowiki></code>" no last name is given, so this citation cannot be combined with the Harvard reference "<code><nowiki>{{یادکرد هاروارد|Freud|1923}}</nowiki></code>". To make these {{الگو|citation}} and {{الگو|harv}} invocations compatible, either replace "{{پارا|author|Sigmund Freud}}" with "{{پارا|first|Sigmund}} {{پارا|last|Freud}}", or add "{{پارا|ref|<nowiki>{{SfnRef|Freud|1923}}</nowiki>}}" to the {{الگو|citation}} invocation, or add the same ref parameter (say, "{{پارا|ref|EgoId}}") to both the {{الگو|citation}} and the {{الگو|harv}} invocations.

Similarly, the year is used, as specified by {{پارا|year}}. If no year is given, this template attempts to derive the year from {{پارا|date}} (or, if no date is given, from {{پارا|publication-date}}) by applying the [[mw:Help:Extension:ParserFunctions##time|MediaWiki#time function]]. This heuristic works with many common date formats (American, International and [[ایزو ۸۶۰۱|ISO 8601 standard format]] YYYY-MM-DD as listed in [[ویکی‌هزاره:شیوه‌نامه]]), but may not work as expected with other formats, so when in doubt it may be safer to use {{پارا|year}}. Note that if only a year, say 2005, is known you must use {{پارا|year|2005}} rather than {{پارا|date|2005}}.