awk/scrabble-score: 2nd iteration

awk/scrabble-score/run-tests-awk.txt

@@ -29,26 +29,25 @@ gawk: warning: function `assertEquals' defined but never called directly
 gawk: warning: function `assert' defined but never called directly
 gawk: ./awkunit.awk:26: warning: reference to uninitialized variable `_assert_exit'
 
-real	0m0.003s
+real	0m0.005s
 user	0m0.003s
-sys	0m0.000s
+sys	0m0.002s
 
 gawk  --lint --file=./scrabble-score.awk < /dev/null > /dev/null
-gawk: ./scrabble-score.awk:21: warning: `switch' is a gawk extension
-gawk: ./scrabble-score.awk:22: warning: `case' is a gawk extension
-gawk: ./scrabble-score.awk:44: warning: `default' is a gawk extension
-gawk: warning: function `is_color' defined but never called directly
+gawk: ./scrabble-score.awk:17: warning: `switch' is a gawk extension
+gawk: ./scrabble-score.awk:18: warning: `case' is a gawk extension
+gawk: ./scrabble-score.awk:40: warning: `default' is a gawk extension
 
-real	0m0.003s
+real	0m0.005s
 user	0m0.002s
-sys	0m0.001s
+sys	0m0.003s
 
 gawk  --lint --file=./test-cases.awk < /dev/null > /dev/null
 gawk: ./test-cases.awk:8: warning: subscript of array `cases' is null string
 
-real	0m0.003s
-user	0m0.002s
-sys	0m0.000s
+real	0m0.004s
+user	0m0.001s
+sys	0m0.003s
 
 exit 0
 
@@ -69,9 +68,9 @@ ok 10 empty input
 ok 11 entire alphabet available
 ok 12 bonus: blank tile counts as zero
 
-real	0m0.447s
-user	0m0.288s
-sys	0m0.178s
+real	0m0.506s
+user	0m0.343s
+sys	0m0.194s
 
 exit 0
 
@@ -291,9 +290,9 @@ Test 37:
 
 37 out of 37 tests passed!
 
-real	0m0.007s
-user	0m0.003s
-sys	0m0.004s
+real	0m0.008s
+user	0m0.002s
+sys	0m0.006s
 
 Tests Passed!
 
@@ -303,8 +302,8 @@ exit 0
 
 Running: misspell .
 
-real	0m0.042s
-user	0m0.044s
+real	0m0.028s
+user	0m0.029s
 sys	0m0.017s
 
 ===============================================================================

awk/scrabble-score/scrabble-score.awk

@@ -1,9 +1,5 @@
 #!/usr/bin/gawk --bignum --lint --file
 
-function is_color(color) {
-    return match(color, /^(black|brown|red|orange|yellow|green|blue|violet|grey|white)?$/)
-}
-
 function scrabbleScore(input) {
     uppercase = ""
     score = 0