Kata

This was a great warmup on spinning and flipping a matrix. Going to look at the other katas you've created because these 4 "Squared strings" were fun. Thank you!

In prolog, attempting to load clpfd causes full tests to always timeout.

python new test framework is required. updated in this fork

I completed to this kata series. I enjoyed while I solved to this kata series. Thank you g964.

Symmetry with respect to the main cross diagonal

I believe a better name would be antidiagonal:

https://en.wikipedia.org/wiki/Main_diagonal#Antidiagonal

You can pass Prolog tests with the exact same code from part 3.

Why is the function named diag2_sym in many other languages, but in Prolog it's diag1_sym ? :P

Symmetry with respect to the main cross diagonal: diag_2_sym (or diag2Sym or diag-2-sym)

diag_2_sym(s) => "plhd\nokgc\nnjfb\nmiea"

It should have been the secondary diagonal.

// Original matrix
[ [ 'L', 'm', 'v', 'L', 'y', 'g' ],
  [ 'D', 'K', 'E', 'L', 'B', 'm' ],
  [ 'y', 'l', 'J', 'h', 'u', 'i' ],
  [ 'X', 'R', 'X', 'q', 'H', 'D' ],
  [ 'z', 'l', 'i', 's', 'C', 'T' ],
  [ 'h', 'P', 'q', 'x', 'Y', 'b' ] ]
  
// Expected answer as I already solved this, which shows that the secondary diagonal's contents does not change.
[ [ 'b', 'T', 'D', 'i', 'm', 'g' ],
  [ 'Y', 'C', 'H', 'u', 'B', 'y' ],
  [ 'x', 's', 'q', 'h', 'L', 'L' ],
  [ 'q', 'i', 'X', 'J', 'E', 'v' ],
  [ 'P', 'l', 'R', 'l', 'K', 'm' ],
  [ 'h', 'z', 'X', 'y', 'D', 'L' ] ]

if you already done Moves in squared strings (III) this kata is pretty easy

Some test-cases for the julia translation might be broken:

I need to catch calls to diag_2_symSE and rot_90_counterSE by hand and replace them with my own non-SE functions in oper, otherwise some tests throw an

ERROR: LoadError: LoadError: MethodError: no method matching split(::Array{String,1}, ::String)
...

in those two functions.

Issue with Julia translation:

1. Inconsistent module name in tests and initial solution.
2. Are you sure you've right number of tests in julia? Because I'm timing out(passing around 238 in Julia 1.0 and 170 in Julia 1.5, please do not take the advertisement that "Julia speed in nearly to that of C" straightaway since Julia's JIT optimisation works differently in comparision to other languages, and the way it is compiled on CW renders it even slower than Python) with the solution that I used in JS, python and ruby.

(At the time of writing this issue there is not any completions .)

Random tests are missing in Rust.

(I haven't checked every other language version, there might be some more)

Repetition is a great tool. I've already forgotten how to use higher level functions but this kata have reminded me how it works. Thanks g964.

Objective-C Translation Kumited - please carefully review and approve :D

great!!

Excellent series of katas, it makes you think how to compose next functions in terms of previous ones. The problem (group actions on strings) was very interesting as well!

interesting training, I like:)

The last one and the best one of the series. Nice training. I enjoyed all parts of the series. Thanks ;)

After submitting I have these issues in console:

../home/codewarrior/spec.ts(1,1): error TS1084: Invalid 'reference' directive syntax. ../home/codewarrior/spec.ts(2,1): error TS1084: Invalid 'reference' directive syntax.

May be some of the reference tags in the test cases are not self-closed?