Update README.rdoc

[rbdr/cologne] / lib / cobalt.rb

diff --git a/lib/cobalt.rb b/lib/cobalt.rb
index e69de29bb2d1d6434b8b29ae775ad8c2e48c5391..a85409f8e0e1c5e72c5a5041bdedcb448f95d4bd 100644 (file)
--- a/lib/cobalt.rb
+++ b/lib/cobalt.rb
@@ -0,0 +1,117 @@
+require 'rubygems'
+require 'isna'
+require 'logger'
+
+module Cobalt
+
+  class Console
+
+    attr_accessor :keep_in_buffer, :separator_length
+
+    def initialize( options = {} )
+      @indent           = 0
+      @loggers          = options[:loggers] || [::Logger.new(STDOUT)]
+      @keep_in_buffer   = false
+      @temporal_buffer  = []
+      @separator_length = 120
+      @color            = :white
+    end
+
+    def add_logger logger
+      @loggers << logger
+    end
+
+    def remove_logger logger
+      @loggers = @loggers - [logger]
+    end
+
+    def release_buffer
+      @keep_in_buffer = false
+      @temporal_buffer.each do |line|
+        @loggers.each { |logger| logger.info(line) }
+      end
+      @temporal_buffer = []
+      nil
+    end
+
+    def log(*objects)
+      objects.each do |object|
+
+        the_string = object.to_s
+        the_string = the_string.to_ansi.send(@color).to_s
+        the_string = the_string.gsub(/^/, ' ' * @indent)
+
+        @loggers.each do |logger|
+          if @keep_in_buffer
+            @temporal_buffer << the_string
+            next
+          end
+          logger.info the_string
+        end
+
+      end
+      self
+    end
+
+    def pp(*objects)
+      dump = ""
+      if objects.size > 1
+        PP.pp(objects, dump)
+      else
+        PP.pp(objects.first, dump)
+      end
+      log(dump)
+    end
+
+    def notice(*objects)
+      color(:cyan) { log(*objects) }
+    end
+
+    def warn(*objects)
+      color(:yellow) { log(*objects) }
+    end
+
+    def error(*objects)
+      color(:red) { log(*objects) }
+    end
+
+    def separator(type = '-')
+      log((type * (@separator_length - @indent)))
+    end
+
+    def space(lines = 1)
+      lines.times { self.log('') }
+      self
+    end
+
+    def indent
+      if block_given?
+        @indent = @indent + 2
+        yield
+        @indent = @indent - 2
+      else
+        @indent = @indent + 2
+      end
+      self
+    end
+
+    def outdent
+      @indent = @indent - 2
+      self
+    end
+
+    def color(symbol)
+      if block_given?
+        old = @color
+        @color = symbol
+        yield
+        @color = old
+      else
+        @color = symbol
+      end
+      self
+    end
+
+  end
+
+end