1 files changed, 33 insertions, 10 deletions
diff --git a/src/nvim/fileio.h b/src/nvim/fileio.h
index dabcda5bf2..d1f6561507 100644
--- a/src/nvim/fileio.h
+++ b/src/nvim/fileio.h
@@ -1,11 +1,16 @@
-#ifndef NVIM_FILEIO_H
-#define NVIM_FILEIO_H
+#pragma once
 
-#include "nvim/buffer_defs.h"
-#include "nvim/eval/typval.h"
+#include <stdint.h>  // IWYU pragma: keep
+#include <stdio.h>  // IWYU pragma: keep
+#include <time.h>  // IWYU pragma: keep
+
+#include "nvim/buffer_defs.h"  // IWYU pragma: keep
 #include "nvim/eval/typval_defs.h"
-#include "nvim/garray.h"
-#include "nvim/os/os.h"
+#include "nvim/ex_cmds_defs.h"  // IWYU pragma: keep
+#include "nvim/garray_defs.h"  // IWYU pragma: keep
+#include "nvim/globals.h"
+#include "nvim/os/fs_defs.h"  // IWYU pragma: keep
+#include "nvim/pos_defs.h"
 
 // Values for readfile() flags
 #define READ_NEW        0x01    // read a file into a new buffer
@@ -18,12 +23,30 @@
 #define READ_NOWINENTER 0x80    // do not trigger BufWinEnter
 #define READ_NOFILE     0x100   // do not read a file, do trigger BufReadCmd
 
-#define READ_STRING(x, y) (char_u *)read_string((x), (size_t)(y))
-
 typedef varnumber_T (*CheckItem)(void *expr, const char *name);
 
+enum {
+  FIO_LATIN1 = 0x01,       // convert Latin1
+  FIO_UTF8 = 0x02,         // convert UTF-8
+  FIO_UCS2 = 0x04,         // convert UCS-2
+  FIO_UCS4 = 0x08,         // convert UCS-4
+  FIO_UTF16 = 0x10,        // convert UTF-16
+  FIO_ENDIAN_L = 0x80,     // little endian
+  FIO_NOCONVERT = 0x2000,  // skip encoding conversion
+  FIO_UCSBOM = 0x4000,     // check for BOM at start of file
+  FIO_ALL = -1,            // allow all formats
+};
+
+// When converting, a read() or write() may leave some bytes to be converted
+// for the next call.  The value is guessed...
+#define CONV_RESTLEN 30
+
+#define WRITEBUFSIZE         8192    // size of normal write buffer
+
+// We have to guess how much a sequence of bytes may expand when converting
+// with iconv() to be able to allocate a buffer.
+#define ICONV_MULT 8
+
 #ifdef INCLUDE_GENERATED_DECLARATIONS
-// Events for autocommands
 # include "fileio.h.generated.h"
 #endif
-#endif  // NVIM_FILEIO_H