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Contents
# Modified from: https://github.com/severinh/nanoc-lunr-js-search/blob/master/lib/nanoc/filters/lunr_js_search.rb
require 'json'
require 'nokogiri'
class SearchFilter < Nanoc::Filter
identifier :search
def run(content, params={})
doc = Nokogiri::HTML(content)
url = assigns[:item_rep].path
#first_image = doc.xpath('//img/@src').to_a[0]
document = {
title: extract_first(doc, '//article//*[self::h1 or self::h2]/text()'),
subtitle: extract_first(doc, '//article//*[self::h3]/text()'),
body: extract_all(doc, '//article//*/text()'),
#img: (first_image.nil?) ? '' : first_image.value(),
#alt: extract_values(doc, '//article//img/@alt')
}
if File.exist?(search_file)
documents = JSON.parse(File.read(search_file))
else
documents = {}
end
documents[url] = document
File.open(search_file, 'w') do |file|
file.write(JSON.pretty_generate(documents))
end
content
end
def search_file
@search_file ||= File.join(@site.config[:output_dir],
@site.config[:search_file] || 'search.json')
end
def extract_first(doc, path)
extract_text(doc, path).first
end
def extract_all(doc, path)
extract_text(doc, path).join(' ')
end
def extract_text(doc, path)
doc.xpath(path).to_a.map { |t|
t.content.gsub('\r', ' ').gsub('\n', ' ').squeeze(' ').strip
}.reject { |t|
t.empty?
}
end
def extract_values(doc, path)
tokens = doc.xpath(path).to_a.map { |t|
t.value().gsub('\r', ' ').gsub('\n', ' ').squeeze(' ').strip
}
tokens.join(' ')
end
end
Version data entries
54 entries across 54 versions & 1 rubygems