+ while (syntax == cen && cp[0] != '\0' && cp[0] != '+'
+ && cp[0] != ',' && cp[0] != '_')
+ ++cp;
+
+ mask |= XPG_MODIFIER | CEN_AUDIENCE;
+ }
+
+ if (syntax != xpg && (cp[0] == '+' || cp[0] == ',' || cp[0] == '_'))
+ {
+ syntax = cen;
+
+ if (cp[0] == '+')
+ {
+ /* Next is special application (CEN syntax). */
+ cp[0] = '\0';
+ *special = ++cp;
+
+ while (cp[0] != '\0' && cp[0] != ',' && cp[0] != '_')
+ ++cp;
+
+ mask |= CEN_SPECIAL;
+ }
+
+ if (cp[0] == ',')
+ {
+ /* Next is sponsor (CEN syntax). */
+ cp[0] = '\0';
+ *sponsor = ++cp;
+
+ while (cp[0] != '\0' && cp[0] != '_')
+ ++cp;
+
+ mask |= CEN_SPONSOR;
+ }
+
+ if (cp[0] == '_')
+ {
+ /* Next is revision (CEN syntax). */
+ cp[0] = '\0';
+ *revision = ++cp;
+
+ mask |= CEN_REVISION;
+ }