+static int
+post_UC(CHKARGS)
+{
+ static const char * const bsd_versions[] = {
+ "3rd Berkeley Distribution",
+ "4th Berkeley Distribution",
+ "4.2 Berkeley Distribution",
+ "4.3 Berkeley Distribution",
+ "4.4 Berkeley Distribution",
+ };
+
+ const char *p, *s;
+
+ n = n->child;
+
+ if (NULL == n || MAN_TEXT != n->type)
+ p = bsd_versions[0];
+ else {
+ s = n->string;
+ if (0 == strcmp(s, "3"))
+ p = bsd_versions[0];
+ else if (0 == strcmp(s, "4"))
+ p = bsd_versions[1];
+ else if (0 == strcmp(s, "5"))
+ p = bsd_versions[2];
+ else if (0 == strcmp(s, "6"))
+ p = bsd_versions[3];
+ else if (0 == strcmp(s, "7"))
+ p = bsd_versions[4];
+ else
+ p = bsd_versions[0];
+ }
+
+ free(man->meta.source);
+ man->meta.source = mandoc_strdup(p);
+ return(1);
+}
+
+static int
+post_AT(CHKARGS)
+{
+ static const char * const unix_versions[] = {
+ "7th Edition",
+ "System III",
+ "System V",
+ "System V Release 2",
+ };
+
+ const char *p, *s;
+ struct man_node *nn;
+
+ n = n->child;
+
+ if (NULL == n || MAN_TEXT != n->type)
+ p = unix_versions[0];
+ else {
+ s = n->string;
+ if (0 == strcmp(s, "3"))
+ p = unix_versions[0];
+ else if (0 == strcmp(s, "4"))
+ p = unix_versions[1];
+ else if (0 == strcmp(s, "5")) {
+ nn = n->next;
+ if (nn && MAN_TEXT == nn->type && nn->string[0])
+ p = unix_versions[3];
+ else
+ p = unix_versions[2];
+ } else
+ p = unix_versions[0];
+ }
+
+ free(man->meta.source);
+ man->meta.source = mandoc_strdup(p);
+ return(1);
+}
+
+static int
+post_vs(CHKARGS)
+{
+
+ if (NULL != n->prev)
+ return(1);
+
+ switch (n->parent->tok) {
+ case MAN_SH:
+ /* FALLTHROUGH */
+ case MAN_SS:
+ mandoc_vmsg(MANDOCERR_PAR_SKIP, man->parse, n->line, n->pos,
+ "%s after %s", man_macronames[n->tok],
+ man_macronames[n->parent->tok]);
+ /* FALLTHROUGH */
+ case MAN_MAX:
+ /*
+ * Don't warn about this because it occurs in pod2man
+ * and would cause considerable (unfixable) warnage.
+ */
+ man_node_delete(man, n);
+ break;
+ default:
+ break;
+ }
+
+ return(1);
+}