TT/excelpm.k

/ :`i$"A"; // 65
/ :`i$"Z"; // 90
/ :`i$"0"; // 48
/ :`i$"9"; // 57
/ :`i$":"; // 58
/ :`i$"$"; // 36

testAtZ: { i:`i$x; $[(i>64) & (i<91);1;0] };
test0t9: { i:`i$x; $[(i>47) & (i<58);1;0] };
testcol: { i:`i$x; $[i=58;1;0] };
testend: { i:`i$x; $[i=36;1;0] };

s0: ((testAtZ; 1);(test0t9; 2));
s1: ((test0t9; 2);(testcol; 3));
s2: ((testend; 7); (testcol;5));
s3: (,(testAtZ; 5));
s4: ((testAtZ; 5); (test0t9; 5));
s5: (,(testend; 6));
s7: (({`0:"SUCCESS"};6));
// 7 is done
states:: (s0;s1;s2;s3;s4;s5;s7);
i: 1;

run: {[str]
 str,:"$";

 // go over each char and run cur statoe
 // cur state; start of pattern; length of pattern    <- args
 idx::0;
 o:(0;-1;-1) {[a;c] // TODO, add support for multiple active states
  s: a[0];
  r:{
   :$[x[0][y];x[1];0]
  }[;c]'states[s];

  r: *($[(+/r)>0;r^0;0]);

  idx +: 1;
  :(r;$[(s=0)&(r>0);idx-1;a[1]];$[r=5;idx;a[2]])
 }\str;

 :o
};