1 [[!template id=plugin name=meta author="[[Joey]]"]]
4 This plugin allows inserting arbitrary metadata into the source of a page.
5 Enter the metadata as follows:
7 \[[!meta field="value"]]
8 \[[!meta field="value" param="value" param="value"]]
10 The first form sets a given field to a given value, while the second form
11 also specifies some additional sub-parameters.
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.
29 Specifies a license for the page, for example, "GPL". Can contain
30 WikiLinks and arbitrary markup.
34 Specifies the copyright of the page, for example, "Copyright 2007 by
35 Joey Hess". Can contain WikiLinks and arbitrary markup.
39 Specifies the author of a page.
43 Specifies an url for the author of a page.
47 Specifies a "description" of the page. You could use this to provide
48 a summary, for example, to be picked up by the [[map]] plugin.
52 Specifies a permanent link to the page, if different than the page
57 Specifies the creation date of the page. The date can be entered in
58 nearly any format, since it's parsed by [[!cpan TimeDate]].
62 Adds a stylesheet to a page. The stylesheet is treated as a wiki link to
63 a `.css` file in the wiki, so it cannot be used to add links to external
66 \[[!meta stylesheet=somestyle rel="alternate stylesheet"
71 Adds html <link> tags to perform OpenID delegation to an external
72 OpenID server (for `openid` and `openid2`). An optional `xrds-location`
73 parameter lets you specify the location of any [eXtensible Resource
74 DescriptorS](http://www.windley.com/archives/2007/05/using_xrds.shtml).
76 This lets you use an ikiwiki page as your OpenID. Example:
78 \\[[!meta openid="http://joeyh.myopenid.com/"
79 server="http://www.myopenid.com/server"
80 xrds-location="http://www.myopenid.com/xrds?username=joeyh.myopenid.com""]]
84 Specifies a link to another page. This can be used as a way to make the
85 wiki treat one page as linking to another without displaying a user-visible
88 \[[!meta link=otherpage]]
90 It can also be used to insert a html <link> tag. For example:
92 \[[!meta link="http://joeyh.myopenid.com/" rel="openid.delegate"]]
94 However, this latter syntax won't be allowed if the [[htmlscrubber]] is
95 enabled, since it can be used to insert unsafe content.
99 Causes the page to redirect to another page in the wiki.
101 \[[!meta redir=otherpage]]
103 Optionally, a delay (in seconds) can be specified. The default is to
104 redirect without delay.
106 It can also be used to redirect to an external url. For example:
108 \[[!meta redir="http://example.com/"]]
110 However, this latter syntax won't be allowed if the [[htmlscrubber]] is
111 enabled, since it can be used to insert unsafe content.
113 For both cases, an anchor to jump to inside the destination page may also be
114 specified using the common `PAGE#ANCHOR` syntax.
118 Causes the robots meta tag to be written:
120 \[[!meta robots="index, nofollow"]]
122 Valid values for the attribute are: "index", "noindex", "follow", and
123 "nofollow". Multiple comma-separated values are allowed, but obviously only
124 some combinations make sense. If there is no robots meta tag, "index,
125 follow" is used as the default.
127 The plugin escapes the value, but otherwise does not care about its
128 contents. In particular, it does not check the values against the set of
129 valid values but serves whatever you pass it.
133 Specifies a globally unique ID for a page. This guid should be a URI
134 (in particular, it can be `urn:uuid:` followed by a UUID, as per
135 [[!rfc 4122]]), and it will be used to identify the page's entry in RSS
136 and Atom feeds. If not given, the default is to use the page's URL as its
139 This is mostly useful when a page has moved, to keep the guids for
141 [[avoid_flooding_aggregators|tips/howto_avoid_flooding_aggregators]].
143 If the field is not one of the above predefined fields, the metadata will be
144 written to the generated html page as a <meta> header. However, this
145 won't be allowed if the [[htmlscrubber]] is enabled, since it can be used to
146 insert unsafe content.