cheat sheets.

--- io version 1	Sun Feb 10 12:06:32 +0000 2008
+++ io version 2	Sun Feb 10 12:08:01 +0000 2008
@@ -1,100 +1,106 @@
 Basic Math
 
 Io> 1+1
 ==> 2
 
 Io> 2 sin
 ==> 0.909297
 
 Io> 2 sqrt
 ==> 1.414214
 Variables
 Io> a := 1
 ==> 1
 
 Io> a
 ==> 1
 
 Io> b := 2 * 3
 ==> 6
 
 Io> a + b
 ==> 7
+
+
 Conditions
 Io> a := 2
 
 Io> if(a == 1) then(writeln("a is one")) else(writeln("a is not one"))
 a is not one
 
 Io> if(a == 1, writeln("a is one"), writeln("a is not one"))
 a is not one
 Lists
 Io> d := List clone append(30, 10, 5, 20)    
 ==> list(30, 10, 5, 20)   
 
 Io> d size
 ==> 4
 
 Io> d print
 ==> list(30, 10, 5, 20)
 
 Io> d := d sort
 ==> list(5, 10, 20, 30)
 
 Io> d first
 ==> 5
 
 Io> d last
 ==> 30
 
 Io> d at(2)
 ==> 20
 
 Io> d remove(30)
 ==> list(5, 10, 20)
 
 Io> d atPut(1, 123)
 ==> list(5, 123, 20)
+
+
 Loops
 Io> for(i, 1, 10, write(i, " "))
 1 2 3 4 5 6 7 8 9 10 
 
 Io> d foreach(i, v, writeln(i, ": ", v))
 0: 5
 1: 123
 3: 20
+
+
 Strings
 Io> a := "foo"
 ==> "foo"
 
 Io> b := "bar"
 ==> "bar"
 
 Io> c := a .. b
 ==> "foobar"
 
 Io> c at(0)
 ==> 102
 
 Io> c at(0) asCharacter
 ==> "f"
 
 Io> s := "this is a test"
 ==> "this is a test"
 
 Io> words := s split(" ", "\t") print
 "this", "is", "a", "test"
 
 Io> s findSeq("is")
 ==> 2
 
 Io> s findSeq("test")
 ==> 10
 
 Io> s slice(10)
 ==> "test"
 
 Io> s slice(2, 10)
 ==> "is is a "