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-rw-r--r--filter.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/filter.h b/filter.h
index 136bb67b..4eb317d1 100644
--- a/filter.h
+++ b/filter.h
@@ -26,6 +26,7 @@
extern val filters;
extern val filter_k, lfilt_k, rfilt_k, to_html_k, from_html_k;
+extern val upcase_k, downcase_k, fun_k;
val trie_lookup_begin(val trie);
val trie_value_at(val node);