Add simple formatter to ri

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/branches/ruby_1_8@6909 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

ChangeLog

@@ -1,3 +1,8 @@
+Tue Sep 14 23:45:44 2004  Dave Thomas  <dave@pragprog.com>
+
+	* lib/rdoc/ri/ri_formatter.rb (RI::TextFormatter::TextFormatter.for):
+	  Add Eric Hodel's simpleformatter.
+
 Tue Sep 14 16:59:37 2004  Hidetoshi NAGAI  <nagai@ai.kyutech.ac.jp>
 
 	* ext/tcltklib/tcltklib.c: fix SEGV
@@ -45,6 +50,7 @@ Sun Sep 12 02:41:58 2004  Hidetoshi NAGAI  <nagai@ai.kyutech.ac.jp>
 	* ext/tcltklib/tcltklib.c: add TclTkIp#allow_ruby_exit? and 
 	  allow_ruby_exit=
 
+
 	* ext/tk/lib/multi-tk.rb: ditto.
 
 	* ext/tk/lib/remote-tk.rb: ditto.

lib/rdoc/README

@@ -164,7 +164,10 @@ Options are:
     include line numbers in the source code
 
 [<tt>--main</tt> _name_]
-    set the class, module, or file to appear on the index page
+    the class of module _name_ will appear on the index page. If you
+    want to set a particular file as a main page (a README, for
+    example) simply specifiy its name as the first on the command
+    line.
 
 [<tt>--merge</tt>]
     when generating _ri_ output, if classes being processed already

lib/rdoc/ri/ri_formatter.rb

@@ -1,20 +1,6 @@
 module RI
   class TextFormatter
 
-    def TextFormatter.list
-      "plain, html, bs, ansi"
-    end
-
-    def TextFormatter.for(name)
-      case name
-      when /plain/i then TextFormatter
-      when /html/i  then HtmlFormatter
-      when /bs/i    then OverstrikeFormatter
-      when /ansi/i  then AnsiFormatter
-      else nil
-      end
-    end
-
     attr_reader :indent
     
     def initialize(options, indent)
@@ -594,6 +580,72 @@ module RI
     end
 
   end
+
+  ##################################################
+  
+  # This formatter reduces extra lines for a simpler output.
+  # It improves way output looks for tools like IRC bots.
+
+  class SimpleFormatter < TextFormatter
+
+    ######################################################################
+
+    # No extra blank lines
+
+    def blankline
+    end
+
+    ######################################################################
+
+    # Display labels only, no lines
+
+    def draw_line(label=nil)
+      unless label.nil? then
+        bold_print(label) 
+        puts
+      end
+    end
+
+    ######################################################################
+
+    # Place heading level indicators inline with heading.
+
+    def display_heading(text, level, indent)
+      case level
+      when 1
+        puts "= " + text.upcase
+      when 2
+        puts "-- " + text
+      else
+        print indent, text, "\n"
+      end
+    end
+
+  end
+
+
+  # Finally, fill in the list of known formatters
+
+  class TextFormatter
+
+    FORMATTERS = {
+      "ansi"   => AnsiFormatter,
+      "bs"     => OverstrikeFormatter,
+      "html"   => HtmlFormatter,
+      "plain"  => TextFormatter,
+      "simple" => SimpleFormatter,
+    }
+      
+    def TextFormatter.list
+      FORMATTERS.keys.sort.join(", ")
+    end
+
+    def TextFormatter.for(name)
+      FORMATTERS[name.downcase]
+    end
+
+  end
+
 end