lib/muflax/string.rb in muflax-0.2.6 vs lib/muflax/string.rb in muflax-0.3.0

@@ -2,21 +2,13 @@
 # -*- encoding: utf-8 -*-
 # Copyright muflax <[e-mail]>, 2013
 # License: GNU GPL 3 <http://www.gnu.org/copyleft/gpl.html>
 
 class String
-  alias :starts_with? :start_with?
-  alias :ends_with?   :end_with?
+  alias :starts_with?	:start_with?
+  alias :ends_with?  	:end_with?
 
-  def align str=" ", alignment: :left
-    self.split("\n").align(str, alignment: alignment).join("\n")
-  end
-
-  def align! str=" ", alignment: :left
-    self.replace(self.align(str, aligment: alignment))
-  end
-
   def whackuum str=/\s+/
     self.split(str).map(&:strip)
   end
 
   ANSIColorRegexp = Regexp.new(/(?: \e \[ \d+ (?: ;\d+)* m )+/x)
@@ -43,7 +35,31 @@
       out = out[0, cut_at]
       out << omission
     end
 
     out
+  end
+
+  def first limit=1
+    if limit == 0      	; ""
+    elsif limit >= size	; dup
+    else               	; self[0..(limit - 1)]
+    end
+  end
+
+  def last limit=1
+    if limit == 0      	; ""
+    elsif limit >= size	; dup
+    else               	; self[(-limit)..-1]
+    end
+  end
+
+  def indent! amount, indent_string = nil, indent_empty_lines = false
+    indent_string = indent_string || self[/^[ \t]/] || " "
+    re = indent_empty_lines ? /^/ : /^(?!$)/
+    gsub!(re, indent_string * amount)
+  end
+
+  def indent amount, indent_string = nil, indent_empty_lines = false
+    dup.tap { |_| _.indent!(amount, indent_string, indent_empty_lines) }
   end
 end