Loads file and extracts headlines

lib/orgmode_parser/headlines.rb

@@ -0,0 +1,27 @@
+module Orgmode
+
+  # Represents a headline in an orgmode file.
+  class Headline
+
+    # This is the line
+    attr_reader :line
+
+    # This is the "level" of the headline
+    attr_reader :level
+
+    def initialize(line)
+      @line = line
+      if (@line =~ /^\*+/) then
+        @level = $&.length
+      else
+        raise "'#{line}' is not a valid headline"
+      end
+    end
+
+    # Determines if a line is an orgmode "headline":
+    # A headline begins with one or more asterisks.
+    def self.is_headline?(line)
+      line =~ /^\*+/
+    end
+  end                           # class Headline
+end                             # class Orgmode

lib/orgmode_parser/orgmode_load.rb

@@ -0,0 +1,25 @@
+##
+##  Simple routines for loading / saving an ORG file.
+##
+
+module Orgmode
+
+  class Parser
+
+    # All of the lines of the orgmode file
+    attr_reader :lines
+
+    # All of the headlines in the org file
+    attr_reader :headlines
+
+    def initialize(fname)
+      @lines = IO.readlines(fname)
+      @headlines = Array.new
+      @lines.each do |line|
+        if (Headline.is_headline? line) then
+          @headlines << (Headline.new line)
+        end
+      end
+    end                           # self.new
+  end                             # class OrgmodeParser
+end                               # module OrgmodeParser

spec/data/remember.org

@@ -0,0 +1,53 @@
+* New Ideas
+** YAML header in Webby
+
+   Make sure you don't have TABS here. Best practice: Configure your
+   editor to use spaces instaed of tabs, and if you can see whitespace,
+   even better.
+
+   In emacs, set indent-tabs-mode to NIL.
+** Ruby Gems behind Proxy
+
+   Set the following environment variable:
+
+   So, I added a User Variable for my account called http_proxy with
+   the value of http://<proxyserveraddress>:8080, rebooted, ran plan
+   old vanillia gem install rails –include-dependencies, and magically,
+   it worked
+** Hyper-V technical info
+
+http://technet.microsoft.com/en-us/dd565807.aspx
+** VirtualBox
+
+   Virtualization software from Sun. Looks like it might be more for
+   dev/test. I'm surprised this hasn't popped at
+   all. http://www.virtualbox.org/. Backed by Sun.
+** Interesting LaTeX article
+
+   http://nitens.org/taraborelli/latex -- on the virtues of LaTeX
+** XEmacs / Emacs internals
+
+   Looks like an interesting resource if I want to learn how Emacs works.
+
+   http://www.xemacs.org/Documentation/21.5/html/internals_9.html#SEC19
+** MikTeX
+
+   Get it here: http://www.miktex.org/portable/
+** Orgmode publishing tutorial
+
+   [[http://orgmode.org/worg/org-tutorials/org-publish-html-tutorial.php][Publishing Org-mode files to HTML]]
+** Git and Live Mesh
+
+   This is really helpful:
+   http://whereslou.com/2009/06/04/using-live-mesh-and-git-the-best-of-both-worlds
+** VDI deployment stats
+
+Key takeaways:
+-	74% are using VDI in production or pilot ... but 45% of those using have less than 100 users
+-	Upward of 55% of the DAC members [project] they will have up to 50% of their users using VDI in 3 years (~1/2 of those will have > 50%)
+-	No real surprises on the reasons / benefits etc
+-	Interestingly ... even if TS supported all client apps / supported user-install apps - 100% of the DAC preferred VDI over TS
+-	Most companies said a portion of their users would have VDI as the primary replacement desktop (60% < 20% of users, 32% 21-50% of users)
+** Hyper-V Scheduler Information
+
+   http://msdn.microsoft.com/en-us/library/bb969782.aspx

spec/orgmode_parser_spec.rb

@@ -1,9 +1,59 @@
 
 require File.join(File.dirname(__FILE__), %w[spec_helper])
 
-describe OrgmodeParser do
+describe Orgmode::Parser do
   it "should open ORG files" do
-    parser = OrgmodeParser.new("foo.org")
+    parser = Orgmode::Parser.new("data/remember.org")
+  end
+
+  it "should fail on non-existant files" do
+    lambda { parser = Orgmode::Parser.new("does-not-exist.org") }.should raise_error
+  end
+
+  it "should load all of the lines" do
+    parser = Orgmode::Parser.new("data/remember.org")
+    parser.lines.length.should == 53
+  end
+
+  it "should find all headlines" do
+    parser = Orgmode::Parser.new("data/remember.org")
+    parser.should have(12).headlines
+  end
+
+  it "can find a headline by index" do
+    parser = Orgmode::Parser.new("data/remember.org")
+    parser.headlines[1].line.should == "** YAML header in Webby\n"
+  end
+
+  it "should determine headline levels" do
+    parser = Orgmode::Parser.new("data/remember.org")
+    parser.headlines[0].level.should == 1
+    parser.headlines[1].level.should == 2
   end
 end
 
+describe Orgmode::Headline do
+
+  it "should recognize headlines that start with asterisks" do
+    Orgmode::Headline.is_headline?("*** test\n").should_not be_nil
+  end
+
+  it "should reject headlines without headlines at the start" do
+    Orgmode::Headline.is_headline?("  nope!").should be_nil
+    Orgmode::Headline.is_headline?("  tricked you!!!***").should be_nil
+  end
+
+  it "should reject improper initialization" do
+    lambda { Orgmode::Headline.new " tricked**" }.should raise_error
+  end
+
+  it "should properly determine headline level" do
+    samples = %w[*one **two ***three ****four]
+    expected = 1
+    samples.each do |sample|
+      h = Orgmode::Headline.new sample
+      h.level.should == expected
+      expected += 1
+    end
+  end
+end