# Nick's web site: Ruby helpers for processing
#
-# Copyright © 2018 Nick Bowler
+# Copyright © 2018-2019 Nick Bowler
#
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# You should have received a copy of the GNU General Public License
# along with this program. If not, see <https://www.gnu.org/licenses/>.
+require 'nokogiri'
+
+use_helper Nanoc::Helpers::Breadcrumbs
+
+Xmlns = {
+ 'xhtml' => 'http://www.w3.org/1999/xhtml'
+}.freeze
+
def to_xhtml(subpath = "", item = @item)
if item.identifier =~ '/index.*'
ret = "/" + subpath + "/index.xhtml"
return ret.gsub(/\/+/, "/")
end
+
+def item_source(item = @item)
+ filename = "content" + item.identifier
+
+ if File.file? filename then
+ return filename
+ end
+
+ return nil
+end
+
+def item_uri(item = @item, rep: :default)
+ return item.path(rep: rep).gsub(/\/index.[^.]*$/, "/")
+end
+
+def find_license(license)
+ matches = @items.find_all("/license/" + license + ".*")
+
+ raise("License not defined: " + license) if !matches.length
+ return matches.sort_by { |item| item.identifier } [0]
+end
+
+# Return the first paragraph of the given item as a string.
+def item_longdesc(item)
+ xml = Nokogiri::XML("<body xmlns='" + Xmlns["xhtml"] + "'>" +
+ item.compiled_content(snapshot: :rawbody) +
+ "</body>")
+
+ p = xml.xpath('//xhtml:p', Xmlns)
+ if p.empty? then nil else p[0].xpath('string(.)') end
+end