Class: MemoRack::MdMenu

Inherits:
Object
  • Object
show all
Defined in:
lib/memorack/mdmenu.rb

Constant Summary collapse

URI_UNSAFE = 
/[^\-_.!~*'a-zA-Z\d;\/?:@&=+$,\[\]]/
DEFAULT_FORMATS = 
{
	'markdown'	=> ['txt', 'md', 'markdown'],
	'textile'	=> ['tt'],
	'wiki'		=> ['wiki'],
	'json'		=> ['json'],
	'html'		=> ['html', 'htm']
}

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(config) ⇒ MdMenu

Returns a new instance of MdMenu.



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# File 'lib/memorack/mdmenu.rb', line 23

def initialize(config)
	@config = config
	@file = config[:file]
	@links = analyze(@file)
	@files = []
	@extentions = {}

	regFormats(config[:formats] || DEFAULT_FORMATS)
end

Instance Attribute Details

#files ⇒ Object (readonly)

Returns the value of attribute files.



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# File 'lib/memorack/mdmenu.rb', line 21

def files
  @files
end

Instance Method Details

#analyze(path) ⇒ Object

Markdownファイルを解析してリンクを取出す



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# File 'lib/memorack/mdmenu.rb', line 48

def analyze(path)
	links = []

	if path && File.exist?(path) then
		open(path) { |f|
			while line = f.gets()
				case line
				when /\[.+\]\s*\(([^()]+)\)/
					# インライン・リンク
					links << $1
				when /\[.+\]:\s*([^\s]+)/
					# 参照リンク
					links << $1
				end
			end
		}
	end

	return links
end

#collection(dir) ⇒ Object

追加されたファイルを集める



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# File 'lib/memorack/mdmenu.rb', line 70

def collection(dir)
	# 拡張子
	exts = @extentions.keys.join(',')
	# 検索パターン
	pattern = File.join(dir, "**/*.{#{exts}}");
	pattern.gsub!(/^\.\//, '')

	Dir.glob(pattern) { |path|
		link = @config[:prefix].to_s + (@config[:uri_escape] ? URI.escape(path, URI_UNSAFE) : path)
		link = link.sub(/\.[^.]*$/, '') + @config[:suffix] if @config[:suffix]
		@files << {:link => link, :path => path} if ! @links.member?(link)
	}
end

#each_subdir(d, dir = nil, dirs = []) ⇒ Object

ディレクトリが違うときにサブディレクトリを引数に実行する



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# File 'lib/memorack/mdmenu.rb', line 104

def each_subdir(d, dir = nil, dirs = [])
	return [dir, dirs] if d == dir

	prefix = @config[:prefix]

	d = File.join(d, '')
	d.gsub!(/^#{prefix}/, '') if prefix
	ds = d.scan(/[^\/]+/)
	ds.delete('.')

	ds.each_with_index { |name, i|
		next if name == dirs[i]

		name = URI.unescape(name) if @config[:uri_escape]
		yield(name, i)
	}

	[d, ds]
end

#generate(outfile = @file, &block) ⇒ Object

新規リンクを追加する



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# File 'lib/memorack/mdmenu.rb', line 125

def generate(outfile = @file, &block)
	len = @files.length

	if 0 < len
		outfile = nil if outfile && outfile.kind_of?(String) && File.exist?(outfile) && ! @config[:update]
		block = lambda { |path| File.basename(path, '.*') } unless block

		stdout(outfile, 'a') {
			prefix = @config[:prefix]
			dir = nil
			dirs = []

			@files.each { |item|
				title = block.call(item[:path])
				link = item[:link]

				dir, dirs = each_subdir(File.dirname(link), dir, dirs) { |name, i|
					print '  ' * i + "- #{name}\n"
				}

				print '  ' * dirs.size + "- [#{title}](#{link})\n"
			}
		}

		if outfile then
			# update
			message = "append #{len} links"
		else
			# dry-run
			message = "found #{len} links (can update with -u option)"
		end
	else
		message = "not found"
	end

	$stderr.print message, "\n" if message && @config[:verbose]

	outfile
end

#regFormat(name, extentions) ⇒ Object

フォーマットとファイル拡張子を登録する



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# File 'lib/memorack/mdmenu.rb', line 41

def regFormat(name, extentions)
	extentions.each { |value|
		@extentions[value] = name
	}
end

#regFormats(formats) ⇒ Object

フォーマット・ハッシュからファイル拡張子を登録する



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# File 'lib/memorack/mdmenu.rb', line 34

def regFormats(formats)
	formats.each { |name, extentions|
		regFormat(name, extentions)
	}
end

#stdout(path, mode = 'r', perm = 0666) ⇒ Object

標準出力を切換える



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# File 'lib/memorack/mdmenu.rb', line 85

def stdout(path, mode = 'r', perm = 0666)
	curr = $stdout
	f = nil

	begin
		if path.kind_of?(String)
			$stdout = f = File.open(path, mode, perm)
		elsif path
			$stdout = path
		end

		yield
	ensure
		f.close if f
		$stdout = curr
	end
end