1 files changed, 56 insertions, 0 deletions
diff --git a/src/nvim/mbyte_defs.h b/src/nvim/mbyte_defs.h
new file mode 100644
index 0000000000..53b01a211f
--- /dev/null
+++ b/src/nvim/mbyte_defs.h
@@ -0,0 +1,56 @@
+#ifndef NVIM_MBYTE_DEFS_H
+#define NVIM_MBYTE_DEFS_H
+
+#include <stdbool.h>
+
+#include "nvim/iconv.h"
+
+/// max length of an unicode char
+enum { MB_MAXCHAR = 6, };
+
+/// properties used in enc_canon_table[] (first three mutually exclusive)
+enum {
+  ENC_8BIT     = 0x01,
+  ENC_DBCS     = 0x02,
+  ENC_UNICODE  = 0x04,
+
+  ENC_ENDIAN_B = 0x10,       ///< Unicode: Big endian
+  ENC_ENDIAN_L = 0x20,       ///< Unicode: Little endian
+
+  ENC_2BYTE    = 0x40,       ///< Unicode: UCS-2
+  ENC_4BYTE    = 0x80,       ///< Unicode: UCS-4
+  ENC_2WORD    = 0x100,      ///< Unicode: UTF-16
+
+  ENC_LATIN1   = 0x200,      ///< Latin1
+  ENC_LATIN9   = 0x400,      ///< Latin9
+  ENC_MACROMAN = 0x800,      ///< Mac Roman (not Macro Man! :-)
+};
+
+/// Flags for vimconv_T
+typedef enum {
+  CONV_NONE      = 0,
+  CONV_TO_UTF8   = 1,
+  CONV_9_TO_UTF8 = 2,
+  CONV_TO_LATIN1 = 3,
+  CONV_TO_LATIN9 = 4,
+  CONV_ICONV     = 5,
+} ConvFlags;
+
+#define MBYTE_NONE_CONV { \
+  .vc_type = CONV_NONE, \
+  .vc_factor = 1, \
+  .vc_fail = false, \
+}
+
+/// Structure used for string conversions
+typedef struct {
+  int vc_type;    ///< Zero or more ConvFlags.
+  int vc_factor;  ///< Maximal expansion factor.
+#ifdef HAVE_ICONV
+  iconv_t vc_fd;  ///< Value for CONV_ICONV.
+#endif
+  bool vc_fail;   ///< What to do with invalid characters: if true, fail,
+                  ///< otherwise use '?'.
+} vimconv_T;
+
+#endif  // NVIM_MBYTE_DEFS_H