September 2017 Update

Task/LZW-compression/Sidef/lzw-compression.sidef

@@ -1,14 +1,14 @@
 # Compress a string to a list of output symbols.
 func compress(String uncompressed) -> Array {
- 
+
     # Build the dictionary.
     var dict_size = 256
     var dictionary = Hash()
- 
+
     for i in range(dict_size) {
         dictionary{i.chr} = i.chr
     }
- 
+
     var w = ''
     var result = []
     uncompressed.each { |c|
@@ -23,26 +23,26 @@ func compress(String uncompressed) -> Array {
             w = c
         }
     }
- 
+
     # Output the code for w.
-    if (w != '') {
+    if (w != '') {
         result << dictionary{w}
     }
- 
+
     return result
 }
- 
+
 # Decompress a list of output ks to a string.
 func decompress(Array compressed) -> String {
- 
+
     # Build the dictionary.
     var dict_size = 256
     var dictionary = Hash()
- 
+
     for i in range(dict_size) {
         dictionary{i.chr} = i.chr
     }
- 
+
     var w = compressed.shift
     var result = w
     compressed.each { |k|
@@ -55,16 +55,16 @@ func decompress(Array compressed) -> String {
             die "Bad compressed k: #{k}"
         }
         result += entry
- 
+
         # Add w+entry[0] to the dictionary.
         dictionary{dict_size} = w+entry.first
         dict_size++
- 
+
         w = entry
     }
     return result
 }
- 
+
 # How to use:
 var compressed = compress('TOBEORNOTTOBEORTOBEORNOT')
 say compressed.join(' ')