factor/basis/html/templates/templates.factor

109 lines
2.4 KiB
Factor

! Copyright (C) 2008, 2009 Slava Pestov.
! See http://factorcode.org/license.txt for BSD license.
USING: accessors kernel fry io io.encodings.utf8 io.files
debugger prettyprint continuations namespaces boxes sequences
arrays strings html io.streams.string assocs
quotations xml.data xml.writer xml.syntax ;
IN: html.templates
MIXIN: template
GENERIC: call-template* ( template -- )
M: string call-template* write ;
M: callable call-template* call( -- ) ;
M: xml call-template* write-xml ;
M: object call-template* output-stream get stream-copy ;
ERROR: template-error template error ;
M: template-error error.
"Error while processing template " write
[ template>> short. ":" print nl ]
[ error>> error. ]
bi ;
: call-template ( template -- )
[ call-template* ] [ \ template-error boa rethrow ] recover ;
ERROR: no-boilerplate ;
M: no-boilerplate error.
drop
"get-title and set-title can only be used from within" print
"a with-boilerplate form" print ;
SYMBOL: title
: set-title ( string -- )
title get [ >box ] [ no-boilerplate ] if* ;
: get-title ( -- string )
title get [ value>> ] [ no-boilerplate ] if* ;
: write-title ( -- )
get-title write ;
SYMBOL: style
: add-style ( string -- )
"\n" style get push-all
style get push-all ;
: get-style ( -- string )
style get >string ;
: write-style ( -- )
get-style write ;
SYMBOL: atom-feeds
: add-atom-feed ( title url -- )
2array atom-feeds get push ;
: get-atom-feeds ( -- xml )
atom-feeds get [
[XML
<link
rel="alternate"
type="application/atom+xml"
title=<->
href=<->/>
XML]
] { } assoc>map ;
: write-atom-feeds ( -- )
get-atom-feeds write-xml ;
SYMBOL: nested-template?
SYMBOL: next-template
: call-next-template ( -- )
next-template get write ;
M: f call-template* drop call-next-template ;
: with-boilerplate ( child master -- )
[
title [ <box> or ] change
style [ SBUF" " clone or ] change
atom-feeds [ V{ } like ] change
[
[
nested-template? on
call-template
] with-string-writer
next-template set
]
[ call-template ]
bi*
] with-scope ; inline
: template-convert ( template output -- )
utf8 [ call-template ] with-file-writer ;