1 files changed, 46 insertions, 0 deletions
diff --git a/examples/dte/encoding.h b/examples/dte/encoding.h
new file mode 100644
index 0000000..bb4cf67
--- /dev/null
+++ b/examples/dte/encoding.h
@@ -0,0 +1,46 @@
+#ifndef ENCODING_ENCODING_H
+#define ENCODING_ENCODING_H
+
+#include <stdbool.h>
+#include <stddef.h>
+#include "util/macros.h"
+
+typedef enum {
+    UTF8,
+    UTF16BE,
+    UTF16LE,
+    UTF32BE,
+    UTF32LE,
+    UNKNOWN_ENCODING,
+    NR_ENCODING_TYPES,
+
+    // This value is used by the "open" command to instruct other
+    // routines that no specific encoding was requested and that
+    // it should be detected instead. It is always replaced by
+    // some other value by the time a file is successfully opened.
+    ENCODING_AUTODETECT
+} EncodingType;
+
+typedef struct {
+    EncodingType type;
+    // An interned encoding name compatible with iconv_open(3)
+    const char *name;
+} Encoding;
+
+typedef struct {
+    const unsigned char bytes[4];
+    unsigned int len;
+} ByteOrderMark;
+
+static inline bool same_encoding(const Encoding *a, const Encoding *b)
+{
+    return a->type == b->type && a->name == b->name;
+}
+
+Encoding encoding_from_type(EncodingType type);
+Encoding encoding_from_name(const char *name) NONNULL_ARGS;
+EncodingType lookup_encoding(const char *name) NONNULL_ARGS;
+EncodingType detect_encoding_from_bom(const unsigned char *buf, size_t size);
+const ByteOrderMark *get_bom_for_encoding(EncodingType encoding);
+
+#endif