mirror of
https://git.sr.ht/~adnano/kiln
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337 lines
8.0 KiB
Markdown
337 lines
8.0 KiB
Markdown
kiln(1)
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# NAME
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kiln - a simple static site generator
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# SYNOPSIS
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*kiln* build [-c _config_]
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*kiln* new _path_
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*kiln* version
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# DESCRIPTION
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*kiln build* builds a kiln site.
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*kiln new* creates a new kiln site at the given path.
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*kiln version* prints version information for the kiln program.
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# OPTIONS
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## kiln build
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*-c* _config_
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Specifies the configuration file to use. Defaults to "config.toml".
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# OVERVIEW
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A kiln site is built in one or more steps called *tasks*.
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Tasks read content from the content directory, process the content, and write
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the content to the output directory. Tasks can also be configured to copy static
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content to the output directory.
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The following directories are common to all tasks:
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[[ *Directory*
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:[ *Description*
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| content/
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: Content directory
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| templates/
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: Templates directory
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# CONTENT DIRECTORY
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The content directory contains site content files, called *pages*, optionally
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nested in subdirectories. Any file or directory in the content directory whose
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name begins with "\_" will be ignored.
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Pages may be preprocessed, run through templates, and postprocessed (in that
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order). Each operation takes the output of the last operation as input.
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; TODO: Should we remove this behavior and opt for using frontmatter instead?
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Pages can specify dates in their filenames. For example, the page
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content/2020-11-20-Hello-world.gmi will have a path of /Hello-world/ and a date
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of November 20, 2020.
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Pages with the name "index" are index pages and are treated specially.
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## FRONTMATTER
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Content files can specify additional metadata in frontmatter. Frontmatter is
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delimited by "---" and is specified in YAML. Newlines after the closing
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delimiter are removed from the content.
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Example:
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```
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---
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title: Page title
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date: 2021-04-24
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params:
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custom: value
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---
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Page content
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```
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The following keys are supported:
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[[ *Key*
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:[ *Description*
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| title
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: Page title
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| date
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: Page date
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| params
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: Extra parameters to be passed to templates
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# TEMPLATES DIRECTORY
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The templates directory contains templates for use when building the site.
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Templates use the Go templating language. The following templates are supported:
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[[ *Template*
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:[ *Description*
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| page.ext
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: Page template
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| index.ext
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: Directory index template
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| atom.xml
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: Atom feed template
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The extension of page and index templates is configurable and will replace
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".ext" above. See *CONFIGURATION*.
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The scope of a template is limited by the directory it is placed in. For
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example, a template in the templates/blog directory will only apply to files in
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content/blog.
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Fallback templates can be specified in the templates/\_default directory. These
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templates will apply to any files which do not have their own templates
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specified.
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For more information on the Go templating language, see
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https://golang.org/pkg/text/template/.
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# CONFIGURATION
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By default, kiln looks for a configuration file named "config.toml". An
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alternative configuration file can be specified with the *-c* flag. See
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*OPTIONS*.
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The configuration file uses the _TOML_ configuration file format.
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The following keys are supported:
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[[ *Key*
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:[ *Description*
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| title
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: Site title
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| urls
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: A list of site URLs
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Site URLs may contain paths, but should not end with a trailing slash. Multiple
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site URLs may be specified for sites that are available at multiple locations.
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## FEEDS
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Feeds can be specified in the [feeds] table of the configuration file. Keys
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denote the path to the feed directory and values denote the title of the feed.
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Feeds are written to the output directory plus the feed directory plus
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"atom.xml".
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Example feed configuration:
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```
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# This will generate a feed which will be written to public/blog/atom.xml
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[feeds]
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"/blog/" = "My blog"
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```
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## TASKS
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Tasks can be specified in the [tasks] table. Each task must have a unique name.
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The following keys are supported per task:
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[[ *Key*
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:[ *Description*
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| input
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: Input file extensions
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| output
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: Output file extension
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| template
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: Template file extension
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| preprocess
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: Preprocess commands
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| postprocess
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: Postprocess command
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| static_dir
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: Static content directory
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| output_dir
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: Output directory
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The input file extension specifies which files from the content directory to
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process. Only files which have the same extension will be processed.
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The output file extension specifies the extension of the file that is written to
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the output directory.
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The template file extension specifies the extension of the templates that will
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be used in the templates directory. If unset, no templates will be used.
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The preprocess commands specify commands which will run before content is
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passed to a template. It will be provided the content as standard input and
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should write the processed content to standard output.
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The postprocess command specifies a command which will run after templating
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and before content is written to the output directory. It will be provided the
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content as standard input and should write the content to standard output.
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The static content directory controls which directory to use for static content.
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If unset, no static content directory will be used. All files in this directory
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will be copied to the output directory without modification. Static assets like
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images should be stored in this directory.
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The output directory specifies the directory to which the output files will be
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written.
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The following configuration generates a Gemini text site and also exports an
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HTML version of the site. This configuration makes use of the *gmnitohtml*(1)
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command to convert Gemini text to HTML.
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```
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# Build the site
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[[tasks]]
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input = [".gmi"]
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output = ".gmi"
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template = ".gmi"
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static_dir = "static"
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output_dir = "public"
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# Export an HTML version of the site
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[[tasks]]
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input = [".gmi"]
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output = ".html"
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template = ".gmi"
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postprocess = "gmnitohtml"
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static_dir = "static"
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output_dir = "public.html"
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```
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The following configuration generates an HTML site from Markdown files in the
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content directory and HTML templates in the templates directory. This
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configuration makes use of the *markdown*(1) comand to convert Markdown to HTML.
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```
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[[tasks]]
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input_ext = [".md"]
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output_ext = ".html"
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template_ext = ".html"
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preprocess.md = "markdown"
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static_dir = "static"
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output_dir = "public"
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```
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# TEMPLATES
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Templates have certain data and functions available to them.
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## TEMPLATE FUNCTIONS
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All templates have the following functions available to them:
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*site*
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Returns site metadata
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*path.Base* _path_
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Returns the last element of path.
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*path.Clean* _path_
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Returns the shortest path name equivalent to path.
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*path.Dir* _path_
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Returns all but the last element of path, typically the path's directory.
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*path.Ext* _path_
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Returns the filename extension used by path.
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*path.Join* _elem..._
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Joins any number of path elements into a single path.
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*safeHTML* _html_
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Encapsulates a known safe HTML document fragment.
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*safeHTMLAttr* _attr_
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Encapsulates an HTML attribute from a trusted source.
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*safeCSS* _css_
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Encapsulates known safe CSS content.
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*safeJS* _js_
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Encapsulates a known safe JavaScript expression.
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*safeURL* _url_
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Encapsulates a known safe URL or URL substring.
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## SITE METADATA
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Site metadata contains the following data:
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[[ *Variable*
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:[ *Description*
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| Title
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: The title of the site.
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| URLs
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: The URLs of the site.
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To configure these variables, see *CONFIGURATION*.
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## PAGE TEMPLATES
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Page templates are provided with the following data:
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[[ *Variable*
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:[ *Description*
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| Title
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: The title of the page
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| Date
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: The date of the page
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| Path
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: Path to the page
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| Content
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: The contents of the page
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| Params
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: Extra parameters specified in frontmatter
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## INDEX TEMPLATES
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Index templates are provided with all the data that page templates are provided,
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plus the following data:
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[[ *Variable*
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:[ *Description*
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| Pages
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: List of pages in this directory
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| Dirs
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: List of subdirectories
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## FEED TEMPLATES
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Feed templates are provided with the following data:
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[[ *Variable*
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:[ *Description*
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| Title
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: Title of the feed
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| Path
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: Path to the feed directory
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| Entries
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: List of pages in this feed
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