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require 'review'
require 'tmpdir'
module ReVIEW
class HTMLBuilder < Builder
def image_ext
'svg'
end
end
end
# module ReVIEW
# class Builder
# def graph_blockdiag(id, file_path, _line, tf_path)
# system_graph(id, 'blockdiag', '-a', '-T', 'svg', '-f', '../NotoSans-Medium.ttf', '-o', file_path, tf_path)
# file_path
# end
# end
# end
module Jekyll
class ReVIEWConverter < Converter
safe true
priority :low
def matches(ext)
ext =~ /^\.re$/i
end
def output_ext(ext)
'.html'
end
def extract_content(data)
ret = []
imgs = []
state = 0
data.lines.each do |line|
case state
when 0
if line.include? '<h1>'
state = 1
else
# skip <html> / <title> / .. header tags
end
when 1
if line.include? '</body>'
state = 2
else
if matches = line.match(/<img src="images\/([^"]+)" alt="([^"]*)" \/>/)
imgpath = matches[1].sub(/^(html\/)*/, '')
imgs.push(imgpath)
ret.push("<img src=\"/images/%s\" alt=\"%s\" />\n" % [imgpath, matches[2]])
else
ret.push(line)
end
end
else
end
end
return ret.join, imgs
end
def copy_images(workdir, destdir, imgs)
# TODO: search subdirectories recursively
candidate_dirs = [
File.join(workdir, 'images'),
File.join(workdir, 'images', 'html')
]
FileUtils.mkdir_p destdir
imgs.each do |img|
dir = candidate_dirs.detect {|dir| File.exist?(File.join(dir, img)) }
if dir != nil
FileUtils.cp(File.join(dir, img), File.join(destdir, img))
end
end
end
def create_blockdiag_rc_file()
fontpath = File.join(File.expand_path(File.dirname(__FILE__)), 'NotoSansJP-Regular.otf')
content = "[blockdiag]\nfontpath = %s" % fontpath
File.open(File.expand_path('~/.blockdiagrc'), 'w') { |file| file.puts(content) }
end
def convert(content)
create_blockdiag_rc_file()
workdir = File.join(@config['source'], '_posts')
imgdestdir = File.join(@config['destination'], 'images')
config = ReVIEW::Configure.values
config['builder'] = 'html'
config['secnolevel'] = 0 # 見出し採番しないとして
ReVIEW::I18n.setup(config['language'])
Dir.chdir(workdir)
builder = ReVIEW::HTMLBuilder.new
book = ReVIEW::Book::Base.new('.')
book.config = config
compiler = ReVIEW::Compiler.new(builder)
chap = ReVIEW::Book::Chapter.new(book, '20191201', '-', nil, nil)
chap.content = content # 書き出したのをFile.readでもいいとは思うけど
location = ReVIEW::Location.new(nil, nil)
builder.bind(compiler, chap, location)
compiler.compile(chap)
s = builder.result
s, imgs = extract_content(s)
copy_images(workdir, imgdestdir, imgs)
# cleanup imgdir
tmpimgdir = File.join(workdir, 'images', 'html')
if Dir.exist?(tmpimgdir)
#FileUtils.rm_rf(tmpimgdir)
end
s
end
end
end