Usage∞
Example∞
Given the input file:
❯ cat test/fixtures/grid_s_1.txt
O
X
OX X
XX
OO
XXO
for clarity showing the dump to expose the regularity:
❯ xxd -c 7 test/fixtures/grid_s_1.txt
00000000: 4f20 2020 2020 0a O .
00000007: 5820 2020 2020 0a X .
0000000e: 4f58 2020 2058 0a OX X.
00000015: 2058 5820 2020 0a XX .
0000001c: 2020 204f 4f20 0a OO .
00000023: 5858 4f20 2020 0a XXO .
xoxo will try to solve the puzzle in a diverse but balanced way:
❯ xoxo test/fixtures/grid_s_1.txt
Problem:
,---+---+---+---+---+---,
| O | | | | | | 1
|---+---+---+---+---+---|
| X | | | | | | 2
|---+---+---+---+---+---|
| O | X | | | | X | 3
|---+---+---+---+---+---|
| | X | X | | | | 4
|---+---+---+---+---+---|
| | | | O | O | | 5
|---+---+---+---+---+---|
| X | X | O | | | | 6
*---+---+---+---+---+---*
1 2 3 4 5 6
Solution:
,---+---+---+---+---+---,
| O | O | X | O | X | X | 1
|---+---+---+---+---+---|
| X | O | O | X | X | O | 2
|---+---+---+---+---+---|
| O | X | O | X | O | X | 3
|---+---+---+---+---+---|
| O | X | X | O | X | O | 4
|---+---+---+---+---+---|
| X | O | X | O | O | X | 5
|---+---+---+---+---+---|
| X | X | O | X | O | O | 6
*---+---+---+---+---+---*
1 2 3 4 5 6
Even less balanced input files with easier to inspect indicators for empty fields like:
❯ cat test/fixtures/tic_tac_toe.txt
o
x
OX=-+X
yXx?!_
oO,
XXO... THIS OVERRUN DOES NOT MATTER
again a dump shown here to help follow the transforms:
❯ xxd -c 7 test/fixtures/tic_tac_toe.txt
00000000: 6f20 2020 2020 0a o .
00000007: 7820 2020 2020 0a x .
0000000e: 4f58 3d2d 2b58 0a OX=-+X.
00000015: 7958 783f 215f 0a yXx?!_.
0000001c: 2020 206f 4f2c 0a oO,.
00000023: 5858 4f2e 2e2e 20 XXO...
0000002a: 5448 4953 204f 56 THIS OV
00000031: 4552 5255 4e20 44 ERRUN D
00000038: 4f45 5320 4e4f 54 OES NOT
0000003f: 204d 4154 5445 52 MATTER
00000046: 0a .
Will find a balanced and filled treatment from xoxo:
❯ xoxo test/fixtures/tic_tac_toe.txt
Problem:
,---+---+---+---+---+---,
| O | | | | | | 1
|---+---+---+---+---+---|
| X | | | | | | 2
|---+---+---+---+---+---|
| O | X | | | | X | 3
|---+---+---+---+---+---|
| | X | X | | | | 4
|---+---+---+---+---+---|
| | | | O | O | | 5
|---+---+---+---+---+---|
| X | X | O | | | | 6
*---+---+---+---+---+---*
1 2 3 4 5 6
Solution:
,---+---+---+---+---+---,
| O | O | X | O | X | X | 1
|---+---+---+---+---+---|
| X | O | O | X | X | O | 2
|---+---+---+---+---+---|
| O | X | O | X | O | X | 3
|---+---+---+---+---+---|
| O | X | X | O | X | O | 4
|---+---+---+---+---+---|
| X | O | X | O | O | X | 5
|---+---+---+---+---+---|
| X | X | O | X | O | O | 6
*---+---+---+---+---+---*
1 2 3 4 5 6