for (p = l->template; *p;) {
if (*p == '%') {
n = atoi (++p); /* find pmatch index */
- while (isdigit (*p))
+ while (isdigit ((unsigned char) *p))
++p; /* skip subst token */
for (i = pmatch[n].rm_so; (i < pmatch[n].rm_eo) && (tlen < x); i++)
text[tlen++] = s[i];