sorting

TODO

@@ -2,5 +2,5 @@ Feature
 
    (X) #0   09/07/17  colorful output in bf list
    ( ) #1   09/07/17  commands to shortest unambiguous string
-   ( ) #2   09/07/17  sorting
+   (X) #2   09/07/17  sorting
    (X) #3   09/07/17  have bugs at multiple categories

bf

@@ -102,6 +102,9 @@ when 'refresh'
 when 'less'
 	Please.list(arg1, true)
 
+when 'sort'
+	Please.sort(arg1, arg2 == 'rev')
+
 when /^(\d+)$/
 	if arg1
 		Please.modify( $1, sentence( 1..-1 ) )

code/db.rb

@@ -125,6 +125,30 @@ def add(cat, task)
 		dump & ack
 	end
 
+	def sort(how, reverse=false)
+		load "sort"
+
+		if how == 'id'
+			sort_like { |a, b| a.id <=> b.id }
+		elsif how == 'alpha'
+			sort_like { |a, b| a.txt <=> b.txt }
+		elsif how == 'date'
+			sort_like { |a, b| a.time <=> b.time }
+		elsif how == 'open'
+			sort_like { |b, a| a.open.to_i <=> b.open.to_i }
+		end
+
+		dump & ack
+	end
+
+	def sort_like( &block )
+		for cat, bugs in @hash
+			bugs.sort! do |a, b|
+				block.call( a[1], b[1] )
+			end
+		end
+	end
+
 	def set_status(bug, open)
 		load open ? "open a bug" : "close a bug"
 

code/ext.rb

@@ -13,6 +13,24 @@ def ensure_type(type, default)
 	end
 end
 
+class Hash
+	def sort!( &block )
+		replace( self.class[self.sort( &block )] )
+	end
+end
+
+class TrueClass
+	def to_i
+		1
+	end
+end
+
+class FalseClass
+	def to_i
+		0
+	end
+end
+
 class Fixnum
 	def spaces
 		' ' * self