Module: ExtractFiles

Extended by:
ExtractFiles
Included in:
ExtractFiles
Defined in:
lib/extract_files.rb

Constant Summary collapse

VERSION = 
"0.0.3"
DEFAULT_EXTENSIONS = 
%w(png jpeg jpg gif css js)

Instance Method Summary collapse

Instance Method Details

#extract!(io, options = {}) ⇒ Object

Process the input io, or anything that respond to __read__ and return a string. options are:

* **extensions**: Array of extensions to look for. Default is DEFAULT_EXTENSIONS

* **base**: Base directory. Image a relative path for a image **bg.png** in a css file inside the **styles** folder. The default output
    will say "../images/bg.png". If you say that the base directory is "styles" the output will be "styles/../images/bg.png". Is unset by default.

* **expand**: If the output is somehing like "sytles/../images/bg.png" expand will convert that in "images/bg.png". Is enabled by false.

* **full_path**: Show the full_path

If no block is passed, it will output to the stdout throught puts. If a block is given, it will yield each founded entry.



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# File 'lib/extract_files.rb', line 23

def extract!(io, options = {})
  raise "Incorrect format for IO" unless io.respond_to?(:read)

  options = {:extensions => DEFAULT_EXTENSIONS}.merge(options)

  ext = "(" + options[:extensions].join("|") + ")"
  re = /([a-z0-9\-_\/\.]*[a-z0-9]*\.#{ext})/i

  io.read.scan(re).each do |match|
    path = match[0]
    path = File.join(options[:base], path) if options[:base]
    path = simplify_path(path)             if options[:expand]
    path = File.expand_path(path)          if options[:full_path]
    if block_given?
      yield path
    else
      puts path
    end
  end

end

#get!(io, options) ⇒ Object

get! is a wrapper for extract! that returns and array of the matches.



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# File 'lib/extract_files.rb', line 46

def get!(io,options)
  matches = []
  extract!(io,options){|match| matches<<match}
  matches
end