Working with strings

Projects Programming
5

the msg was very informative

here's code that i believe captures the input in the struct you're suggesting.

i didn't look over your code that drives hardware.

setMove:  0  a1n  (null)
setMove:  1   c2  t120
setMove:  2   d4  t0
setMove:  3   b5  t0
setMove:  4   a2  t368
setMove:  5   e2  t452
setMove:  6   1c  t0
setMove:  7   e1  t600

process:  1  (0,0)    0
process:  2  (2,1)  120
process:  3  (3,3)    0
process:  4  (1,4)    0
process:  5  (0,1)  368
process:  6  (4,1)  452
process:  7  (0,2)    0

#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <ctype.h>

struct Move_s {
    int             x;
    int             y;
    unsigned long   msec;
};

#define MAX_MOVES   20
Move_s moves [MAX_MOVES];
int    moveN;

char str [] = "A1N c2 t120 d4 t0 b5 t0 a2 t368 e2 t452 1c t0 e1 t600";

// -----------------------------------------------------------------------------
int
tokenize (
    char *str,
    char *tok [],
    int   maxTok )
{
    static char s [100];
    strcpy (s, str);

    int  n;
    for (n = 0; n < strlen(s); n++)
        s [n] = tolower (s [n]);

    tok [0] = strtok (s, " ");
    for (n = 1; n < maxTok; n++)
        if (NULL == (tok [n] = strtok (NULL, " ")))
            break;
    return n;
}

// ---------------------------------------------------------
void
setMove (
    int    idx,
    char  *pos,
    char  *msec )
{
    printf ("%s: %2d  %3s  %s\n", __func__, idx, pos, msec);

    moves [idx].msec = 0;
    if (NULL != msec && 't' == msec[0])
        moves [idx].msec = atoi (++msec);

    if (isdigit(pos [0]))  {
        moves [idx].x = pos [0] - '1';
        moves [idx].y = pos [1] - 'a';
    }
    else {
        moves [idx].x = pos [0] - 'a';
        moves [idx].y = pos [1] - '1';
    }
}

// ---------------------------------------------------------
void
translate (
    char *tok [],
    int   nTok )
{
    moveN = 0;
    setMove (moveN++, tok [0], NULL);

    for (int i = 1; i < nTok; i+=2)
        setMove (moveN++, tok [i], tok [i+1]);
}

// ---------------------------------------------------------
void
disp ()
{
    Move_s  *m = moves;

    printf ("\n");
    for (int i = 1; i < moveN; i++, m++)
        printf ("%s: %2d  (%d,%d) %4d\n", __func__, i, m->x, m->y, m->msec);
}

// -----------------------------------------------------------------------------
#define MAX_TOK  40
int
main ()
{
    char *tok [MAX_TOK];
    int nTok = tokenize (str, tok, MAX_TOK);

    translate (tok, nTok);
    disp ();
}