if (strncasecmp (tokstart, tokentab3[i].oper, 3) == 0
&& (!isalpha (tokentab3[i].oper[0]) || explen == 3
|| (!isalpha (tokstart[3])
&& !isdigit (tokstart[3]) && tokstart[3] != '_')))
{
if (strncasecmp (tokstart, tokentab3[i].oper, 3) == 0
&& (!isalpha (tokentab3[i].oper[0]) || explen == 3
|| (!isalpha (tokstart[3])
&& !isdigit (tokstart[3]) && tokstart[3] != '_')))
{