* fieldset support appeared in CGI::FormBuilder 3.05, so increase

[git.ikiwiki.info.git] / doc / plugins / write.mdwn

diff --git a/doc/plugins/write.mdwn b/doc/plugins/write.mdwn
index c10d73cf9b4288e4cdf81fd8ab35afc8f9217e77..0eef3d2baa996d9fc566b6bc2d9a4c99664a8eeb 100644 (file)
--- a/doc/plugins/write.mdwn
+++ b/doc/plugins/write.mdwn
@@ -20,6 +20,8 @@ being edited.
 ## Registering plugins
 
 All plugins should `use IkiWiki` to import the ikiwiki plugin interface.
 ## Registering plugins
 
 All plugins should `use IkiWiki` to import the ikiwiki plugin interface.

+It's a good idea to include the version number of the plugin interface that
+your plugin expects: `use IkiWiki 2.00`

 
 Plugins should, when imported, call `hook()` to hook into ikiwiki's
 processing. The function uses named parameters, and use varies depending on
 
 Plugins should, when imported, call `hook()` to hook into ikiwiki's
 processing. The function uses named parameters, and use varies depending on


@@ -80,7 +82,7 @@ make arbitrary changes. The function is passed named parameters `page` and
 
 This is identical to a preprocess hook (see below), except that it is
 called in the initial pass that scans pages for data that will be used in
 
 This is identical to a preprocess hook (see below), except that it is
 called in the initial pass that scans pages for data that will be used in

-later passes. Scan hooks are the only hook that should modify 
+later passes. Scan hooks are the only hook that should modify `%links`.

 
 ### preprocess
 
 
 ### preprocess
 


@@ -96,9 +98,11 @@ Each time the directive is processed, the referenced function (`preprocess`
 in the example above) is called, and is passed named parameters. A "page"
 parameter gives the name of the page that embedded the preprocessor
 directive, while a "destpage" parameter gives the name of the page the
 in the example above) is called, and is passed named parameters. A "page"
 parameter gives the name of the page that embedded the preprocessor
 directive, while a "destpage" parameter gives the name of the page the

-content is going to (different for inlined pages). All parameters included
-in the directive are included as named parameters as well. Whatever the
-function returns goes onto the page in place of the directive.
+content is going to (different for inlined pages), and a "preview"
+parameter is set to a true value if the page is being previewed. All
+parameters included in the directive are included as named parameters as
+well. Whatever the function returns goes onto the page in place of the
+directive.

 
 Note that if the [[htmlscrubber]] is enabled, html in
 [[PreProcessorDirective]] output is sanitised, which may limit what your
 
 Note that if the [[htmlscrubber]] is enabled, html in
 [[PreProcessorDirective]] output is sanitised, which may limit what your


@@ -216,8 +220,8 @@ CGI::FormBuilder]] to generate web forms. These hooks are passed named
 parameters: `cgi`, `session`, and `form`. These are, respectively, the
 `CGI` object, the user's `CGI::Session`, and a `CGI::FormBuilder`.
 
 parameters: `cgi`, `session`, and `form`. These are, respectively, the
 `CGI` object, the user's `CGI::Session`, and a `CGI::FormBuilder`.
 

-Each time a form is set up, the formbuilder_setup hook is called.
-Typically the formbuilder_setup hook will check the form's title, and if
+Each time a form is set up, the `formbuilder_setup` hook is called.
+Typically the `formbuilder_setup` hook will check the form's title, and if

 it's a form that it needs to modify, will call various methods to
 add/remove/change fields, tweak the validation code for the fields, etc. It
 will not validate or display the form.
 it's a form that it needs to modify, will call various methods to
 add/remove/change fields, tweak the validation code for the fields, etc. It
 will not validate or display the form.


@@ -262,11 +266,11 @@ hash. The best way to understand the contents of the hash is to look at
 If your plugin needs to access data about other pages in the wiki. It can
 use the following hashes, using a page name as the key:
 
 If your plugin needs to access data about other pages in the wiki. It can
 use the following hashes, using a page name as the key:
 

-* `%links` lists the names of each page that a page links to, in an array
+* `links` lists the names of each page that a page links to, in an array

   reference.
   reference.

-* `%renderedfiles` lists names of the files rendered by a page, in an array
-  reference.
-* `%pagesources` contains the name of the source file for a page.
+* `%destsources` contains the name of the source file used to create each
+  destination file.
+* `%pagesources` contains the name of the source file for each page.

 
 Also, the %IkiWiki::version variable contains the version number for the
 ikiwiki program.
 
 Also, the %IkiWiki::version variable contains the version number for the
 ikiwiki program.


@@ -314,12 +318,15 @@ page created from it. (Ie, it appends ".html".)
 
 Makes the specified page depend on the specified [[PageSpec]].
 
 
 Makes the specified page depend on the specified [[PageSpec]].
 

-#### `pagespec_match($$;$)`
+#### `pagespec_match($$;@)`
+
+Passed a page name, and [[PageSpec]], returns true if the [[PageSpec]]
+matches the page.

 
 

-Passed a page name, a [[PageSpec]], and the location the [[PageSpec]] should
-be matched against, returns true if the [[PageSpec]] matches the page. (If
-the third parameter is not passed, relative PageSpecs will match relative to
-the top of the wiki.)
+Additional named parameters can be passed, to further limit the match.
+The most often used is "location", which specifies the location the
+PageSpec should match against. If not passed, relative PageSpecs will match
+relative to the top of the wiki.

 
 #### `bestlink($$)`
 
 
 #### `bestlink($$)`
 


@@ -329,7 +336,7 @@ subdirectory with the same name as the source page, failing that
 goes down the directory tree to the base looking for matching
 pages, as described in [[SubPage/LinkingRules]].
 
 goes down the directory tree to the base looking for matching
 pages, as described in [[SubPage/LinkingRules]].
 

-#### `htmllink($$$;$$$)`
+#### `htmllink($$$;@)`

 
 Many plugins need to generate html links and add them to a page. This is
 done by using the `htmllink` function. The usual way to call
 
 Many plugins need to generate html links and add them to a page. This is
 done by using the `htmllink` function. The usual way to call


@@ -346,11 +353,13 @@ Here `$destpage` is the inlining page. A `destpage` parameter is passed to
 some of the hook functions above; the ones that are not passed it are not used
 during inlining and don't need to worry about this issue.
 
 some of the hook functions above; the ones that are not passed it are not used
 during inlining and don't need to worry about this issue.
 

-The remaining three optional parameters to `htmllink` are:
+After the three required parameters, named parameters can be used to
+control some options. These are:

 
 

-1. noimageinline - set to true to avoid turning links into inline html images
-1. forcesubpage  - set to force a link to a subpage
-1. linktext - set to force the link text to something
+* noimageinline - set to true to avoid turning links into inline html images
+* forcesubpage  - set to force a link to a subpage
+* linktext - set to force the link text to something
+* anchor - set to make the link include an anchor

 
 #### `readfile($;$)`
 
 
 #### `readfile($;$)`
 


@@ -410,6 +419,15 @@ Given a time, formats it for display.
 
 This is the standard gettext function, although slightly optimised.
 
 
 This is the standard gettext function, although slightly optimised.
 

+#### `urlto($$)`
+
+Construct a relative url to the first parameter from the second.
+
+#### `targetpage($$)`
+
+Passed a page and an extension, returns the filename that page will be
+rendered to.
+

 ## RCS plugins
 
 ikiwiki's support for revision control systems also uses pluggable perl
 ## RCS plugins
 
 ikiwiki's support for revision control systems also uses pluggable perl


@@ -427,6 +445,8 @@ See [[about_RCS_backends]] for some more info.
 It's also possible to write plugins that add new functions to
 [[PageSpecs|PageSpec]]. Such a plugin should add a function to the
 IkiWiki::PageSpec package, that is named `match_foo`, where "foo()" is
 It's also possible to write plugins that add new functions to
 [[PageSpecs|PageSpec]]. Such a plugin should add a function to the
 IkiWiki::PageSpec package, that is named `match_foo`, where "foo()" is

-how it will be accessed in a [[PageSpec]]. The function will be passed two
-parameters: The name of the page being matched, and the thing to match
-against. It should return true if the page matches.
+how it will be accessed in a [[PageSpec]]. The function will be passed
+two parameters: The name of the page being matched, and the thing to match
+against. It may also be passed additional, named parameters. It should return
+a IkiWiki::SuccessReason object if the match succeeds, or an
+IkiWiki::FailReason object if the match fails.