# Nick's web site: Ruby helpers for processing # # 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 # the Free Software Foundation, either version 3 of the License, or # (at your option) any later version. # # This program is distributed in the hope that it will be useful, # but WITHOUT ANY WARRANTY; without even the implied warranty of # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the # GNU General Public License for more details. # # You should have received a copy of the GNU General Public License # along with this program. If not, see . require 'nokogiri' use_helper Nanoc::Helpers::Breadcrumbs use_helper Nanoc::Helpers::Blogging Xmlns = { 'xhtml' => 'http://www.w3.org/1999/xhtml' }.freeze $counters = {} def to_xhtml(subpath = "", item = @item) if item.identifier =~ '/index.*' ret = "/" + subpath + "/index.xhtml" else ret = item.identifier.without_ext + "/" + subpath + "/index.xhtml" end return ret.gsub(/\/+/, "/") end def item_source(item = @item) filename = "content" + item.identifier filebase = filename.chomp(File.extname(filename)) [ if item.binary? then filebase + ".yaml" end, filename].compact.find { |f| File.file? f } end def item_uri(item = @item, rep: :default) return item.path(rep: rep).sub(%r{/index[.][^.]*$}, "/") 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("" + item.compiled_content(snapshot: :rawbody) + "") 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 size /= 1024.0 prec = 1 end sprintf("%.*f %s", prec, size + 0.05, unit) end