Misc. functions (1).

// Workout current column lettering dependant on integer column.

void current_column(char *fch, char *sch, int column)

{

       div_t x;

       if (column<=26)

       {

              *fch=96+column;

              *sch=32;

       }

       else

       {

              x=div(column,26);

              if(x.rem)

              {

                     *sch=x.rem+96;

                     *fch=x.quot+96;

              }

              else

              {

                     *sch=x.rem+122;

                     *fch=(x.quot-1)+96;

              }

       }

}

void cleanup(char *output, char *input)

{

       int loop=0, yloop=0;

       for (loop=0;loop<=strlen(input);loop++)

       {

              if (input[loop]!='Ç')

              {

                     output[yloop]=input[loop];

                     yloop++;

              }

       }

}

 

// Clear the contents of a string.

void clr_str(char *s)

{

       int loop;

       for (loop=0; loop<=strlen(s)-1;loop++)

       s[loop]=' ';

}

 

// Find an operator's string position.

int find_optr(int start, char *form)

{

       while(form[start]!='*' && form[start]!='+' && form[start]!='/' && form[start]!='-' && form[start]!='#' && form[start]!=')')

              start++;

       return(start);

}