3 files changed, 27 insertions, 0 deletions
diff --git a/src/filter/filter.h b/src/filter/filter.h
new file mode 100644
index 0000000..7cdb640
--- /dev/null
+++ b/src/filter/filter.h
@@ -0,0 +1,15 @@
+#ifndef PLOC_GEN_FILTER_H
+#define PLOC_GEN_FILTER_H
+
+#include "stdbool.h"
+#include "pattern/pattern.h"
+
+struct filter
+{
+    void *state;
+    void *(*create)();
+    void (*free)(void *);
+    bool (*filter)(void *, struct pattern *);
+};
+
+#endif
+\ No newline at end of file
diff --git a/src/filter/uniq.c b/src/filter/uniq.c
new file mode 100644
index 0000000..e69de29
--- /dev/null
+++ b/src/filter/uniq.c
diff --git a/src/filter/uniq.h b/src/filter/uniq.h
new file mode 100644
index 0000000..fa235a5
--- /dev/null
+++ b/src/filter/uniq.h
@@ -0,0 +1,12 @@
+#ifndef PLOC_GEN_FILTER_UNIQ_H
+#define PLOC_GEN_FILTER_UNIQ_H
+
+#include "stdbool.h"
+#include "pattern/pattern.h"
+
+void *create_uniq();
+void free_uniq(void *state);
+
+bool uniq(void *state, struct pattern *pattern);
+
+#endif
+\ No newline at end of file