newpost.rb

#!/usr/bin/env ruby

# *********************************************
# Jekyll Post Generator Awesomeness
# by Cody Krieger (http://codykrieger.com)
# *********************************************

# *********************************************
# Modified by Tim Smith (http://ttimsmith.com)
# Originally created as a command line tool but
# modified to work as a script with Alfred.
# *********************************************

class String
  
  # from ruby on rails (https://github.com/rails/rails)
  # activesupport/lib/active_support/inflector/transliterate.rb
  def parameterize(sep = '-')
    # replace accented chars with their ascii equivalents
    parameterized_string = self.dup
    # Turn unwanted chars into the separator
    parameterized_string.gsub!(/[^a-z0-9\-_]+/i, sep)
    unless sep.nil? || sep.empty?
      re_sep = Regexp.escape(sep)
      # No more than one of the separator in a row.
      parameterized_string.gsub!(/#{re_sep}{2,}/, sep)
      # Remove leading/trailing separator.
      parameterized_string.gsub!(/^#{re_sep}|#{re_sep}$/i, '')
    end
    parameterized_string.downcase
  end
 
end

TEMPLATE = "/post-template.md"
POSTS_DIR = "/_drafts"
 
# Get the title and use it to derive the new filename
title = "{query}"
filename = "#{title.parameterize}.md" 
filepath = File.join(POSTS_DIR, filename)

 
# Load in the template and set the title
post_text = File.read(TEMPLATE)
post_text.gsub!('%%TITLE%%', title)
 
# Write out the post
post_file = File.open(filepath, 'w')
post_file.puts post_text
post_file.close

# Changes to your Drafts directory (put full path)
Dir.chdir "/_drafts"

system(%[open "#{filename}"])

post-template.md

Error in user YAML: (<unknown>): found character that cannot start any token while scanning for the next token at line 2 column 8

--- 
layout: post
title: %%TITLE%%
custom_type: post
---

Hello, Jekyll!