vim-patch:8.1.1076: file for Insert mode is much too big

Problem:    File for Insert mode is much too big.
Solution:   Split off the code for Insert completion. (Yegappan Lakshmanan,
            closes vim/vim#4044)
7591bb39d5

Cherry-pick ins_compl_len() -> get_compl_len() from patch 8.2.4001.

Revert a71c5e9eb9: ctrl_x_mode is no
longer a global variable, so l_ctrl_x_mode is no longer needed.

src/nvim/api/vim.c

@@ -37,6 +37,7 @@
 #include "nvim/highlight.h"
 #include "nvim/highlight_defs.h"
 #include "nvim/highlight_group.h"
+#include "nvim/insexpand.h"
 #include "nvim/lua/executor.h"
 #include "nvim/mapping.h"
 #include "nvim/mark.h"

src/nvim/autocmd.c

@@ -18,6 +18,7 @@
 #include "nvim/ex_getln.h"
 #include "nvim/fileio.h"
 #include "nvim/getchar.h"
+#include "nvim/insexpand.h"
 #include "nvim/lua/executor.h"
 #include "nvim/map.h"
 #include "nvim/option.h"

src/nvim/change.c

@@ -17,6 +17,7 @@
 #include "nvim/fold.h"
 #include "nvim/indent.h"
 #include "nvim/indent_c.h"
+#include "nvim/insexpand.h"
 #include "nvim/mark.h"
 #include "nvim/memline.h"
 #include "nvim/move.h"

src/nvim/edit.h

@@ -1,27 +1,9 @@
 #ifndef NVIM_EDIT_H
 #define NVIM_EDIT_H
 
+#include "nvim/autocmd.h"
 #include "nvim/vim.h"
 
-/*
- * Array indexes used for cptext argument of ins_compl_add().
- */
-#define CPT_ABBR        0   // "abbr"
-#define CPT_MENU        1   // "menu"
-#define CPT_KIND        2   // "kind"
-#define CPT_INFO        3   // "info"
-#define CPT_COUNT       4   // Number of entries
-
-// values for cp_flags
-typedef enum {
-  CP_ORIGINAL_TEXT = 1,  // the original text when the expansion begun
-  CP_FREE_FNAME = 2,     // cp_fname is allocated
-  CP_CONT_S_IPOS = 4,    // use CONT_S_IPOS for compl_cont_status
-  CP_EQUAL = 8,          // ins_compl_equal() always returns true
-  CP_ICASE = 16,         // ins_compl_equal ignores case
-  CP_FAST = 32,          // use fast_breakcheck instead of os_breakcheck
-} cp_flags_T;
-
 typedef int (*IndentGetter)(void);
 
 // Values for in_cinkeys()

src/nvim/eval/funcs.c

@@ -36,6 +36,7 @@
 #include "nvim/indent.h"
 #include "nvim/indent_c.h"
 #include "nvim/input.h"
+#include "nvim/insexpand.h"
 #include "nvim/lua/executor.h"
 #include "nvim/macros.h"
 #include "nvim/mapping.h"
@@ -1091,7 +1092,7 @@ static void f_complete_check(typval_T *argvars, typval_T *rettv, FunPtr fptr)
 
   RedrawingDisabled = 0;
   ins_compl_check_keys(0, true);
-  rettv->vval.v_number = compl_interrupted;
+  rettv->vval.v_number = ins_compl_interrupted();
   RedrawingDisabled = saved;
 }
 

src/nvim/eval/userfunc.c

@@ -16,6 +16,7 @@
 #include "nvim/fileio.h"
 #include "nvim/getchar.h"
 #include "nvim/globals.h"
+#include "nvim/insexpand.h"
 #include "nvim/lua/executor.h"
 #include "nvim/os/input.h"
 #include "nvim/regexp.h"

src/nvim/getchar.c

@@ -21,6 +21,7 @@
 #include "nvim/garray.h"
 #include "nvim/getchar.h"
 #include "nvim/input.h"
+#include "nvim/insexpand.h"
 #include "nvim/keycodes.h"
 #include "nvim/lua/executor.h"
 #include "nvim/main.h"

src/nvim/globals.h

@@ -163,10 +163,6 @@ EXTERN colnr_T dollar_vcol INIT(= -1);
 // by the match.)
 EXTERN int compl_length INIT(= 0);
 
-// Set when character typed while looking for matches and it means we should
-// stop looking for matches.
-EXTERN int compl_interrupted INIT(= false);
-
 // Set when doing something for completion that may call edit() recursively,
 // which is not allowed. Also used to disable folding during completion
 EXTERN bool compl_busy INIT(= false);

src/nvim/insexpand.h

@@ -0,0 +1,17 @@
+#ifndef NVIM_INSEXPAND_H
+#define NVIM_INSEXPAND_H
+
+#include "nvim/vim.h"
+
+/// state for pum_ext_select_item.
+EXTERN struct {
+  bool active;
+  int item;
+  bool insert;
+  bool finish;
+} pum_want;
+
+#ifdef INCLUDE_GENERATED_DECLARATIONS
+# include "insexpand.h.generated.h"
+#endif
+#endif  // NVIM_INSEXPAND_H

src/nvim/main.c

@@ -28,6 +28,7 @@
 #include "nvim/highlight_group.h"
 #include "nvim/iconv.h"
 #include "nvim/if_cscope.h"
+#include "nvim/insexpand.h"
 #include "nvim/lua/executor.h"
 #include "nvim/main.h"
 #include "nvim/mapping.h"

src/nvim/memory.c

@@ -14,6 +14,7 @@
 #include "nvim/eval.h"
 #include "nvim/highlight.h"
 #include "nvim/highlight_group.h"
+#include "nvim/insexpand.h"
 #include "nvim/lua/executor.h"
 #include "nvim/mapping.h"
 #include "nvim/memfile.h"
@@ -710,6 +711,7 @@ void free_all_mem(void)
   free_search_patterns();
   free_old_sub();
   free_last_insert();
+  free_insexpand_stuff();
   free_prev_shellcmd();
   free_regexp_stuff();
   free_tag_stuff();

src/nvim/option.c

@@ -49,6 +49,7 @@
 #include "nvim/highlight.h"
 #include "nvim/highlight_group.h"
 #include "nvim/indent_c.h"
+#include "nvim/insexpand.h"
 #include "nvim/keycodes.h"
 #include "nvim/macros.h"
 #include "nvim/mapping.h"

src/nvim/popupmnu.c

@@ -16,6 +16,7 @@
 #include "nvim/edit.h"
 #include "nvim/eval/typval.h"
 #include "nvim/ex_cmds.h"
+#include "nvim/insexpand.h"
 #include "nvim/memline.h"
 #include "nvim/memory.h"
 #include "nvim/menu.h"

src/nvim/screen.c

@@ -92,6 +92,7 @@
 #include "nvim/highlight.h"
 #include "nvim/highlight_group.h"
 #include "nvim/indent.h"
+#include "nvim/insexpand.h"
 #include "nvim/lib/kvec.h"
 #include "nvim/log.h"
 #include "nvim/lua/executor.h"

src/nvim/search.c

@@ -27,6 +27,7 @@
 #include "nvim/getchar.h"
 #include "nvim/indent.h"
 #include "nvim/indent_c.h"
+#include "nvim/insexpand.h"
 #include "nvim/main.h"
 #include "nvim/mark.h"
 #include "nvim/mbyte.h"
@@ -5849,7 +5850,7 @@ exit_matched:
     if (action == ACTION_EXPAND) {
       ins_compl_check_keys(30, false);
     }
-    if (got_int || compl_interrupted) {
+    if (got_int || ins_compl_interrupted()) {
       break;
     }
 
@@ -5911,7 +5912,7 @@ exit_matched:
     }
   } else if (!found
              && action != ACTION_EXPAND) {
-    if (got_int || compl_interrupted) {
+    if (got_int || ins_compl_interrupted()) {
       emsg(_(e_interr));
     } else if (type == FIND_DEFINE) {
       emsg(_("E388: Couldn't find definition"));

src/nvim/spell.c

@@ -95,6 +95,7 @@
 #include "nvim/getchar.h"
 #include "nvim/hashtab.h"
 #include "nvim/input.h"
+#include "nvim/insexpand.h"
 #include "nvim/mark.h"
 #include "nvim/mbyte.h"
 #include "nvim/memline.h"
@@ -7012,7 +7013,7 @@ void spell_dump_compl(char_u *pat, int ic, Direction *dir, int dumpflags_arg)
       arridx[0] = 0;
       curi[0] = 1;
       while (depth >= 0 && !got_int
-             && (pat == NULL || !compl_interrupted)) {
+             && (pat == NULL || !ins_compl_interrupted())) {
         if (curi[depth] > byts[arridx[depth]]) {
           // Done all bytes at this node, go up one level.
           --depth;

src/nvim/state.c

@@ -5,10 +5,10 @@
 
 #include "nvim/ascii.h"
 #include "nvim/autocmd.h"
-#include "nvim/edit.h"
 #include "nvim/eval.h"
 #include "nvim/ex_docmd.h"
 #include "nvim/getchar.h"
+#include "nvim/insexpand.h"
 #include "nvim/lib/kvec.h"
 #include "nvim/log.h"
 #include "nvim/main.h"

src/nvim/tag.c

@@ -26,6 +26,7 @@
 #include "nvim/garray.h"
 #include "nvim/if_cscope.h"
 #include "nvim/input.h"
+#include "nvim/insexpand.h"
 #include "nvim/mark.h"
 #include "nvim/mbyte.h"
 #include "nvim/memory.h"
@@ -1648,7 +1649,7 @@ int find_tags(char_u *pat, int *num_matches, char_u ***matchesp, int flags, int
         if ((flags & TAG_INS_COMP)) {   // Double brackets for gcc
           ins_compl_check_keys(30, false);
         }
-        if (got_int || compl_interrupted) {
+        if (got_int || ins_compl_interrupted()) {
           stop_searching = true;
           break;
         }