1 The `meta` directive is supplied by the [[!iki plugins/meta desc=meta]] plugin.
3 This directive allows inserting arbitrary metadata into the source of a page.
4 Enter the metadata as follows:
6 \[[!meta field="value"]]
7 \[[!meta field="value" param="value" param="value"]]
9 The first form sets a given field to a given value, while the second form
10 also specifies some additional sub-parameters. You can have only one field
11 per `meta` directive, use more directives if you want to specify more fields.
13 The field values are treated as HTML entity-escaped text, so you can include
14 a quote in the text by writing `"` and so on.
20 Overrides the title of the page, which is generally the same as the
23 Note that if the title is overridden, a "title_overridden" variable will
24 be set to a true value in the template; this can be used to format things
25 differently in this case.
27 An optional `sortas` parameter will be used preferentially when
28 [[ikiwiki/pagespec/sorting]] by `meta(title)`:
30 \[[!meta title="The Beatles" sortas="Beatles, The"]]
32 \[[!meta title="David Bowie" sortas="Bowie, David"]]
36 Specifies a license for the page, for example, "GPL". Can contain
37 WikiLinks and arbitrary markup.
41 Specifies the copyright of the page, for example, "Copyright 2007 by
42 Joey Hess". Can contain WikiLinks and arbitrary markup.
46 Specifies the author of a page.
48 An optional `sortas` parameter will be used preferentially when
49 [[ikiwiki/pagespec/sorting]] by `meta(author)`:
51 \[[!meta author="Joey Hess" sortas="Hess, Joey"]]
55 Specifies an url for the author of a page.
59 Specifies a short description for the page. This will be put in
60 the html header, and can also be displayed by eg, the [[map]] directive.
64 Specifies a permanent link to the page, if different than the page
69 Specifies the creation date of the page. The date can be entered in
70 nearly any format, since it's parsed by [[!cpan TimeDate]].
74 Adds a stylesheet to a page. The stylesheet is treated as a wiki link to
75 a `.css` file in the wiki, so it cannot be used to add links to external
78 \[[!meta stylesheet=somestyle rel="alternate stylesheet"
81 However, this will be scrubbed away if the
82 [[!iki plugins/htmlscrubber desc=htmlscrubber]] plugin is enabled,
83 since it can be used to insert unsafe content.
87 Adds a script to a page. The script is treated as a wiki link to
88 a `.js` file in the wiki, so it cannot be used to add links to external
89 scripts. The optional `defer` and `async` keywords can be used to set
90 the corresponding HTML4 and HTML5 script options. Example:
92 \[[!meta script=somescript defer async]]
94 The tag is subject to scrubbing as with the stylesheet and link fields.
98 Adds html <link> tags to perform OpenID delegation to an external
99 OpenID server. This lets you use an ikiwiki page as your OpenID.
101 By default this will delegate for both `openid` and `openid2`. To only
102 delegate for one, add a parameter such as `delegate=openid`.
104 An optional `xrds-location`
105 parameter lets you specify the location of any [eXtensible Resource
106 DescriptorS](http://www.windley.com/archives/2007/05/using_xrds.shtml).
110 \[[!meta openid="http://joeyh.myopenid.com/"
111 server="http://www.myopenid.com/server"
112 xrds-location="http://www.myopenid.com/xrds?username=joeyh.myopenid.com""]]
116 Specifies a link to another page. This can be used as a way to make the
117 wiki treat one page as linking to another without displaying a user-visible
118 [[ikiwiki/WikiLink]]:
120 \[[!meta link=otherpage]]
122 It can also be used to insert a html <link> tag. For example:
124 \[[!meta link="http://joeyh.myopenid.com/" rel="openid.delegate"]]
126 However, this latter syntax won't be allowed if the
127 [[!iki plugins/htmlscrubber desc=htmlscrubber]] plugin is enabled, since it can be used to
128 insert unsafe content.
132 Causes the page to redirect to another page in the wiki.
134 \[[!meta redir=otherpage]]
136 Optionally, a delay (in seconds) can be specified. The default is to
137 redirect without delay.
139 It can also be used to redirect to an external url. For example:
141 \[[!meta redir="http://example.com/"]]
143 However, this latter syntax won't be allowed if the
144 [[!iki plugins/htmlscrubber desc=htmlscrubber]] plugin is enabled, since it can be used to
145 insert unsafe content.
147 For both cases, an anchor to jump to inside the destination page may also be
148 specified using the common `#ANCHOR` syntax.
152 Causes the robots meta tag to be written:
154 \[[!meta robots="index, nofollow"]]
156 Valid values for the attribute are: "index", "noindex", "follow", and
157 "nofollow". Multiple comma-separated values are allowed, but obviously only
158 some combinations make sense. If there is no robots meta tag, "index,
159 follow" is used as the default.
161 The value is escaped, but its contents are not otherwise checked.
165 Specifies a globally unique ID for a page. This guid should be a URI
166 (in particular, it can be `urn:uuid:` followed by a UUID, as per
167 [[!rfc 4122]]), and it will be used to identify the page's entry in RSS
168 and Atom feeds. If not given, the default is to use the page's URL as its
171 This is mostly useful when a page has moved, to keep the guids for
172 pages unchanged and avoid_flooding_aggregators
173 (see [[!iki tips/howto_avoid_flooding_aggregators]]).
177 Specifies a fake modification time for a page, to be output into RSS and
178 Atom feeds. This is useful to avoid flooding aggregators that sort by
179 modification time, like Planet: for instance, when editing an old blog post
180 to add tags, you could set `updated` to be one second later than the original
181 value. The date/time can be given in any format that
182 [[!cpan TimeDate]] can understand, just like the `date` field.
186 Adds a Friend of a Friend ([FOAF](http://wiki.foaf-project.org/w/Autodiscovery))
191 \[[!meta foaf=foaf.rdf]]
193 If the field is not one of the above predefined fields, the metadata will be
194 written to the generated html page as a <meta> header. However, this
195 won't be allowed if the [[!iki plugins/htmlscrubber desc=htmlscrubber]] plugin is enabled,
196 since it can be used to insert unsafe content.
198 [[!meta robots="noindex, follow"]]