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Stored size: 947 Bytes

Contents

module Linguist
  module Strategy
    class Modeline
      EmacsModeline = /-\*-\s*mode:\s*(\w+);?\s*-\*-/i
      VimModeline = /\/\*\s*vim:\s*set\s*(?:ft|filetype)=(\w+):\s*\*\//i

      # Public: Detects language based on Vim and Emacs modelines
      #
      # blob               - An object that quacks like a blob.
      #
      # Examples
      #
      #   Modeline.call(FileBlob.new("path/to/file"))
      #
      # Returns an Array with one Language if the blob has a Vim or Emacs modeline
      # that matches a Language name or alias. Returns an empty array if no match.
      def self.call(blob, _ = nil)
        Array(Language.find_by_alias(modeline(blob.data)))
      end

      # Public: Get the modeline from the first n-lines of the file
      #
      # Returns a String or nil
      def self.modeline(data)
        match = data.match(EmacsModeline) || data.match(VimModeline)
        match[1] if match
      end
    end
  end
end

Version data entries

7 entries across 7 versions & 1 rubygems

Version Path
github-linguist-4.5.3 lib/linguist/strategy/modeline.rb
github-linguist-4.5.2 lib/linguist/strategy/modeline.rb
github-linguist-4.5.1 lib/linguist/strategy/modeline.rb
github-linguist-4.4.3 lib/linguist/strategy/modeline.rb
github-linguist-4.4.2 lib/linguist/strategy/modeline.rb
github-linguist-4.4.1 lib/linguist/strategy/modeline.rb
github-linguist-4.4.0 lib/linguist/strategy/modeline.rb