1 # Nick's web site: Ruby helpers for processing
3 # Copyright © 2018-2019 Nick Bowler
5 # This program is free software: you can redistribute it and/or modify
6 # it under the terms of the GNU General Public License as published by
7 # the Free Software Foundation, either version 3 of the License, or
8 # (at your option) any later version.
10 # This program is distributed in the hope that it will be useful,
11 # but WITHOUT ANY WARRANTY; without even the implied warranty of
12 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 # GNU General Public License for more details.
15 # You should have received a copy of the GNU General Public License
16 # along with this program. If not, see <https://www.gnu.org/licenses/>.
20 use_helper Nanoc::Helpers::Breadcrumbs
23 'xhtml' => 'http://www.w3.org/1999/xhtml'
26 def to_xhtml(subpath = "", item = @item)
27 if item.identifier =~ '/index.*'
28 ret = "/" + subpath + "/index.xhtml"
30 ret = item.identifier.without_ext + "/" + subpath + "/index.xhtml"
33 return ret.gsub(/\/+/, "/")
36 def item_source(item = @item)
37 filename = "content" + item.identifier
39 if File.file? filename then
46 def item_uri(item = @item, rep: :default)
47 return item.path(rep: rep).gsub(/\/index.[^.]*$/, "/")
50 def find_license(license)
51 matches = @items.find_all("/license/" + license + ".*")
53 raise("License not defined: " + license) if !matches.length
54 return matches.sort_by { |item| item.identifier } [0]
57 # Return the first paragraph of the given item as a string.
58 def item_longdesc(item)
59 xml = Nokogiri::XML("<body xmlns='" + Xmlns["xhtml"] + "'>" +
60 item.compiled_content(snapshot: :rawbody) +
63 p = xml.xpath('//xhtml:p', Xmlns)
64 if p.empty? then nil else p[0].xpath('string(.)') end
67 def human_filesize(size)
68 units = ["B", "KiB", "MiB", "GiB"]
78 sprintf("%.1f %s", size + 0.05, unit)