1 files changed, 35 insertions, 0 deletions
diff --git a/examples/dte/filetype.h b/examples/dte/filetype.h
new file mode 100644
index 0000000..cec4d85
--- /dev/null
+++ b/examples/dte/filetype.h
@@ -0,0 +1,35 @@
+#ifndef FILETYPE_H
+#define FILETYPE_H
+
+#include <stdbool.h>
+#include <string.h>
+#include "util/macros.h"
+#include "util/ptr-array.h"
+#include "util/string-view.h"
+#include "util/string.h"
+
+// Note: the order of these values changes the order of iteration
+// in find_ft()
+typedef enum {
+    FT_INTERPRETER,
+    FT_BASENAME,
+    FT_CONTENT,
+    FT_EXTENSION,
+    FT_FILENAME,
+} FileDetectionType;
+
+PURE
+static inline bool is_valid_filetype_name(const char *name)
+{
+    size_t n = strcspn(name, " \t/");
+    return n > 0 && n < 64 && name[n] == '\0' && name[0] != '-';
+}
+
+bool add_filetype(PointerArray *filetypes, const char *name, const char *str, FileDetectionType type) NONNULL_ARGS WARN_UNUSED_RESULT;
+bool is_ft(const PointerArray *filetypes, const char *name);
+const char *find_ft(const PointerArray *filetypes, const char *filename, StringView line);
+void collect_ft(const PointerArray *filetypes, PointerArray *a, const char *prefix);
+String dump_filetypes(const PointerArray *filetypes);
+void free_filetypes(PointerArray *filetypes);
+
+#endif