refactor: move some mapping-related code to a separate file (#19061)

This marks the following Vim patches as ported:

vim-patch:8.1.1785: map functionality mixed with character input

Problem:    Map functionality mixed with character input.
Solution:   Move the map functionality to a separate file. (Yegappan
            Lakshmanan, closes vim/vim#4740)  Graduate the +localmap feature.
https://github.com/vim/vim/commit/b66bab381c8ba71fd6e92327d1d34c6f8a65f2a7

vim-patch:8.2.3643: header for source file is outdated

Problem:    Header for source file is outdated.
Solution:   Make the header more accurate. (closes vim/vim#9186)
https://github.com/vim/vim/commit/a3f83feb63eae5464a620ae793c002eb45f7a838

Also cherry-pick a change for <unique> mappings from patch 8.2.0807.
Rename map_clear_mode() to do_mapclear().

1 files changed, 0 insertions, 44 deletions

diff --git a/src/nvim/getchar.h b/src/nvim/getchar.h
index ddd6d81aef..6996b00c6e 100644
--- a/src/nvim/getchar.h
+++ b/src/nvim/getchar.h
@@ -1,10 +1,7 @@
 #ifndef NVIM_GETCHAR_H
 #define NVIM_GETCHAR_H
 
-#include "nvim/buffer_defs.h"
-#include "nvim/ex_cmds_defs.h"
 #include "nvim/os/fileio.h"
-#include "nvim/types.h"
 #include "nvim/vim.h"
 
 /// Values for "noremap" argument of ins_typebuf()
@@ -24,47 +21,6 @@ typedef enum {
   FLUSH_INPUT,  // flush typebuf and inchar() input
 } flush_buffers_T;
 
-/// All possible |:map-arguments| usable in a |:map| command.
-///
-/// The <special> argument has no effect on mappings and is excluded from this
-/// struct declaration. |noremap| is included, since it behaves like a map
-/// argument when used in a mapping.
-///
-/// @see mapblock_T
-struct map_arguments {
-  bool buffer;
-  bool expr;
-  bool noremap;
-  bool nowait;
-  bool script;
-  bool silent;
-  bool unique;
-
-  /// The {lhs} of the mapping.
-  ///
-  /// vim limits this to MAXMAPLEN characters, allowing us to use a static
-  /// buffer. Setting lhs_len to a value larger than MAXMAPLEN can signal
-  /// that {lhs} was too long and truncated.
-  char_u lhs[MAXMAPLEN + 1];
-  size_t lhs_len;
-
-  /// Unsimplifed {lhs} of the mapping. If no simplification has been done then alt_lhs_len is 0.
-  char_u alt_lhs[MAXMAPLEN + 1];
-  size_t alt_lhs_len;
-
-  char_u *rhs;  /// The {rhs} of the mapping.
-  size_t rhs_len;
-  LuaRef rhs_lua;  /// lua function as {rhs}
-  bool rhs_is_noop;  /// True when the {rhs} should be <Nop>.
-
-  char_u *orig_rhs;  /// The original text of the {rhs}.
-  size_t orig_rhs_len;
-  char *desc;  /// map description
-};
-typedef struct map_arguments MapArguments;
-#define MAP_ARGUMENTS_INIT { false, false, false, false, false, false, false, \
-                             { 0 }, 0, { 0 }, 0, NULL, 0, LUA_NOREF, false, NULL, 0, NULL }
-
 #define KEYLEN_PART_KEY (-1)  // keylen value for incomplete key-code
 #define KEYLEN_PART_MAP (-2)  // keylen value for incomplete mapping