# Nick's web site: Ruby helpers for processing
#
-# Copyright © 2018 Nick Bowler
+# Copyright © 2018-2021 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
+use_helper Nanoc::Helpers::Blogging
+
+Xmlns = {
+ 'xhtml' => 'http://www.w3.org/1999/xhtml'
+}.freeze
+$counters = {}
+
def to_xhtml(subpath = "", item = @item)
if item.identifier =~ '/index.*'
ret = "/" + subpath + "/index.xhtml"
def item_source(item = @item)
filename = "content" + item.identifier
+ filebase = filename.chomp(File.extname(filename))
+
+ [ if item.binary? then filebase + ".yaml" end,
+ filename].compact.find { |f| File.file? f }
+end
+
+def item_uri(item = @item, rep: :default)
+ return item.path(rep: rep).sub(%r{/index[.][^.]*$}, "/")
+end
+
+def rep_uri(rep = @rep)
+ return rep.path.sub(%r{/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
+
+def counter(name = :default, item = @item)
+ $counters[item] ||= {}
+ $counters[item][name] ||= 0
+
+ name.to_s.capitalize + " " + ($counters[item][name] += 1).to_s
+end
+
+def human_filesize(size)
+ units = ["B", "KiB", "MiB", "GiB"]
+ prec = 0
+
+ for unit in units
+ if (size < 1024)
+ break
+ end
- if File.file? filename then
- return filename
+ size /= 1024.0
+ prec = 1
end
- return nil
+ sprintf("%.*f %s", prec, size + 0.05, unit)
end