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author | Paul Phillips <paulp@improving.org> | 2013-09-18 00:09:46 -0700 |
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committer | Paul Phillips <paulp@improving.org> | 2013-09-18 07:13:38 -0700 |
commit | f4267ccd96a9143c910c66a5b0436aaa64b7c9dc (patch) | |
tree | 174861715807c23ba332f78769a9f7e1377b7f02 /test/files/pos/sudoku.scala | |
parent | d45a3c8cc8e9f1d95d797d548a85abd8597f5bc7 (diff) | |
download | scala-f4267ccd96a9143c910c66a5b0436aaa64b7c9dc.tar.gz scala-f4267ccd96a9143c910c66a5b0436aaa64b7c9dc.tar.bz2 scala-f4267ccd96a9143c910c66a5b0436aaa64b7c9dc.zip |
Cull extraneous whitespace.
One last flurry with the broom before I leave you slobs to code
in your own filth. Eliminated all the trailing whitespace I
could manage, with special prejudice reserved for the test cases
which depended on the preservation of trailing whitespace.
Was reminded I cannot figure out how to eliminate the trailing
space on the "scala> " prompt in repl transcripts. At least
reduced the number of such empty prompts by trimming transcript
code on the way in.
Routed ConsoleReporter's "printMessage" through a trailing
whitespace stripping method which might help futureproof
against the future of whitespace diseases. Deleted the up-to-40
lines of trailing whitespace found in various library files.
It seems like only yesterday we performed whitespace surgery
on the whole repo. Clearly it doesn't stick very well. I suggest
it would work better to enforce a few requirements on the way in.
Diffstat (limited to 'test/files/pos/sudoku.scala')
-rw-r--r-- | test/files/pos/sudoku.scala | 10 |
1 files changed, 5 insertions, 5 deletions
diff --git a/test/files/pos/sudoku.scala b/test/files/pos/sudoku.scala index 336dc756a9..9435f504d6 100644 --- a/test/files/pos/sudoku.scala +++ b/test/files/pos/sudoku.scala @@ -3,22 +3,22 @@ object SudokuSolver extends App { // held in a global variable m. The program begins by reading 9 lines // of input to fill the board var m: Array[Array[Char]] = Array.tabulate(9)((x: Int) => readLine.toArray) - + // For printing m, a method print is defined def print = { println(""); m map (carr => println(new String(carr))) } - + // The test for validity is performed by looping over i=0..8 and // testing the row, column and 3x3 square containing the given // coordinate def invalid(i: Int, x: Int, y: Int, n: Char): Boolean = i<9 && (m(y)(i) == n || m(i)(x) == n || m(y/3*3 + i/3)(x/3*3 + i % 3) == n || invalid(i+1, x, y, n)) - + // Looping over a half-closed range of consecutive integers [l..u) // is factored out into a higher-order function def fold(f: (Int, Int) => Int, accu: Int, l: Int, u: Int): Int = if(l==u) accu else fold(f, f(accu, l), l+1, u) - + // The search function examines each position on the board in turn, // trying the numbers 1..9 in each unfilled position // The function is itself a higher-order fold, accumulating the value @@ -34,7 +34,7 @@ object SudokuSolver extends App { val newaccu = search(x+1, y, f, accu); m(y)(x) = '0'; newaccu}, accu, 1, 10)} - + // The main part of the program uses the search function to accumulate // the total number of solutions println("\n"+search(0,0,i => {print; i+1},0)+" solution(s)") |