Delete dead file, add block stmt

src/if_else_while.md

@@ -2,13 +2,13 @@
 
 Nimrod many different control flow constructs, including the standard `if`s, `else`s, and `while`s.
 
+When inside a loop or block, it is possible to use `continue` or `break` any point, where `continue` skips to the next iteration and `break` ends the loop. The break statement can also receive the name of the block to break out of, so it is possible to break out of nested loops.
+
 ``` Nimrod
 import strutils
 
-let
+let answer = 4  # Chosen by a fair dice roll,
-  answer = 4  # Chosen by a fair dice roll,
                 # guaranteed to be random
-
 while true:
   echo "I have a number from 1 to 10, what is it? "
   let guess = parseInt(stdin.readLine)
@@ -20,6 +20,9 @@ while true:
   else:
     echo "Correct!"
     break
-```
 
-When inside a loop, it is possible to use `continue` or `break` any point within the loop with the standard semantics, where `continue` skips to the next iteration and `break` ends the loop.
+block busyloops:
+  while true:
+    while true:
+      break busyloops
+```

src/variables.md

@@ -1,38 +0,0 @@
-# Assignment
-
-Nimrod supports three different types of variables, `let`, `var`, and `const`. As with most things, multiple variables can be declared in the same section.
-
-``` nimrod
-proc getLetterA(): string =
-  result = ""
-  for letter in 'a'..'z':
-    result.add(letter)
-
-const abcs = getLetterA()
-var
-  foo = "bar"
-  bar = "foo"
-# oops, I need to fix the names
-let temp = foo
-foo = bar
-bar = temp
-
-echo "abcs is ", abcs
-echo "foo is ", foo
-echo "bar is ", bar
-```
-
-```
-$ nimrod c -r ./assignment.nim
-abcs is abcdefghijklmnopqrstuvwxyz
-foo is foo
-bar is bar
-```
-
-A `const` variable is evaluated at compile-time, so if you inspect the C sources, you'll see the following line:
-
-``` C
-STRING_LITERAL(TMP129, "abcdefghijklmnopqrstuvwxyz", 26);
-```
-
-`var` variables are the standard mutable variables, you can modify them after they've been assigned. `let` variables are also fairly standard immutable variables. This means you can assign to them at creation time and can't change them later on.