vim-patch:8.1.2082: rename popupmnu.* to popupmenu.* (#19829)

vim-patch:8.1.2082: some files have a weird name to fit in 8.3 characters

Problem:    Some files have a weird name to fit in 8.3 characters.
Solution:   Use a nicer names.
https://github.com/vim/vim/commit/30e8e73506e4522ef4aebf7d525c0e6ffe8805fd

1 files changed, 0 insertions, 1122 deletions

diff --git a/src/nvim/popupmnu.c b/src/nvim/popupmnu.c
deleted file mode 100644
index c137675502..0000000000
--- a/src/nvim/popupmnu.c
+++ /dev/null
@@ -1,1122 +0,0 @@
-// This is an open source non-commercial project. Dear PVS-Studio, please check
-// it. PVS-Studio Static Code Analyzer for C, C++ and C#: http://www.viva64.com
-
-/// @file popupmnu.c
-///
-/// Popup menu (PUM)
-
-#include <assert.h>
-#include <inttypes.h>
-#include <stdbool.h>
-
-#include "nvim/api/private/helpers.h"
-#include "nvim/ascii.h"
-#include "nvim/buffer.h"
-#include "nvim/charset.h"
-#include "nvim/edit.h"
-#include "nvim/eval/typval.h"
-#include "nvim/ex_cmds.h"
-#include "nvim/grid.h"
-#include "nvim/highlight.h"
-#include "nvim/insexpand.h"
-#include "nvim/memline.h"
-#include "nvim/memory.h"
-#include "nvim/menu.h"
-#include "nvim/move.h"
-#include "nvim/option.h"
-#include "nvim/popupmnu.h"
-#include "nvim/screen.h"
-#include "nvim/search.h"
-#include "nvim/strings.h"
-#include "nvim/ui.h"
-#include "nvim/ui_compositor.h"
-#include "nvim/vim.h"
-#include "nvim/window.h"
-
-static pumitem_T *pum_array = NULL;  // items of displayed pum
-static int pum_size;                // nr of items in "pum_array"
-static int pum_selected;            // index of selected item or -1
-static int pum_first = 0;           // index of top item
-
-static int pum_height;              // nr of displayed pum items
-static int pum_width;               // width of displayed pum items
-static int pum_base_width;          // width of pum items base
-static int pum_kind_width;          // width of pum items kind column
-static int pum_extra_width;         // width of extra stuff
-static int pum_scrollbar;           // one when scrollbar present, else zero
-static bool pum_rl;                 // true when popupmenu is drawn 'rightleft'
-
-static int pum_anchor_grid;         // grid where position is defined
-static int pum_row;                 // top row of pum
-static int pum_col;                 // left column of pum
-static bool pum_above;              // pum is drawn above cursor line
-
-static bool pum_is_visible = false;
-static bool pum_is_drawn = false;
-static bool pum_external = false;
-static bool pum_invalid = false;  // the screen was just cleared
-
-#ifdef INCLUDE_GENERATED_DECLARATIONS
-# include "popupmnu.c.generated.h"
-#endif
-#define PUM_DEF_HEIGHT 10
-
-static void pum_compute_size(void)
-{
-  // Compute the width of the widest match and the widest extra.
-  pum_base_width = 0;
-  pum_kind_width = 0;
-  pum_extra_width = 0;
-  for (int i = 0; i < pum_size; i++) {
-    int w;
-    if (pum_array[i].pum_text != NULL) {
-      w = vim_strsize((char *)pum_array[i].pum_text);
-      if (pum_base_width < w) {
-        pum_base_width = w;
-      }
-    }
-    if (pum_array[i].pum_kind != NULL) {
-      w = vim_strsize((char *)pum_array[i].pum_kind) + 1;
-      if (pum_kind_width < w) {
-        pum_kind_width = w;
-      }
-    }
-    if (pum_array[i].pum_extra != NULL) {
-      w = vim_strsize((char *)pum_array[i].pum_extra) + 1;
-      if (pum_extra_width < w) {
-        pum_extra_width = w;
-      }
-    }
-  }
-}
-
-/// Show the popup menu with items "array[size]".
-/// "array" must remain valid until pum_undisplay() is called!
-/// When possible the leftmost character is aligned with cursor column.
-/// The menu appears above the screen line "row" or at "row" + "height" - 1.
-///
-/// @param array
-/// @param size
-/// @param selected index of initially selected item, none if out of range
-/// @param array_changed if true, array contains different items since last call
-///                      if false, a new item is selected, but the array
-///                      is the same
-/// @param cmd_startcol only for cmdline mode: column of completed match
-void pum_display(pumitem_T *array, int size, int selected, bool array_changed, int cmd_startcol)
-{
-  int context_lines;
-  int above_row;
-  int below_row;
-  int redo_count = 0;
-  int pum_win_row;
-  int cursor_col;
-
-  if (!pum_is_visible) {
-    // To keep the code simple, we only allow changing the
-    // draw mode when the popup menu is not being displayed
-    pum_external = ui_has(kUIPopupmenu)
-                   || (State == MODE_CMDLINE && ui_has(kUIWildmenu));
-  }
-
-  pum_rl = (curwin->w_p_rl && State != MODE_CMDLINE);
-
-  do {
-    // Mark the pum as visible already here,
-    // to avoid that must_redraw is set when 'cursorcolumn' is on.
-    pum_is_visible = true;
-    pum_is_drawn = true;
-    validate_cursor_col();
-    above_row = 0;
-    below_row = cmdline_row;
-
-    // wildoptions=pum
-    if (State == MODE_CMDLINE) {
-      pum_win_row = ui_has(kUICmdline) ? 0 : cmdline_row;
-      cursor_col = cmd_startcol;
-      pum_anchor_grid = ui_has(kUICmdline) ? -1 : DEFAULT_GRID_HANDLE;
-    } else {
-      // anchor position: the start of the completed word
-      pum_win_row = curwin->w_wrow;
-      if (pum_rl) {
-        cursor_col = curwin->w_width - curwin->w_wcol - 1;
-      } else {
-        cursor_col = curwin->w_wcol;
-      }
-
-      pum_anchor_grid = (int)curwin->w_grid.target->handle;
-      pum_win_row += curwin->w_grid.row_offset;
-      cursor_col += curwin->w_grid.col_offset;
-      if (!ui_has(kUIMultigrid) && curwin->w_grid.target != &default_grid) {
-        pum_anchor_grid = (int)default_grid.handle;
-        pum_win_row += curwin->w_winrow;
-        cursor_col += curwin->w_wincol;
-      }
-    }
-
-    if (pum_external) {
-      if (array_changed) {
-        Arena arena = ARENA_EMPTY;
-        arena_start(&arena, &ui_ext_fixblk);
-        Array arr = arena_array(&arena, (size_t)size);
-        for (int i = 0; i < size; i++) {
-          Array item = arena_array(&arena, 4);
-          ADD_C(item, STRING_OBJ(cstr_as_string((char *)array[i].pum_text)));
-          ADD_C(item, STRING_OBJ(cstr_as_string((char *)array[i].pum_kind)));
-          ADD_C(item, STRING_OBJ(cstr_as_string((char *)array[i].pum_extra)));
-          ADD_C(item, STRING_OBJ(cstr_as_string((char *)array[i].pum_info)));
-          ADD_C(arr, ARRAY_OBJ(item));
-        }
-        ui_call_popupmenu_show(arr, selected, pum_win_row, cursor_col,
-                               pum_anchor_grid);
-        arena_mem_free(arena_finish(&arena), &ui_ext_fixblk);
-      } else {
-        ui_call_popupmenu_select(selected);
-        return;
-      }
-    }
-
-    int def_width = (int)p_pw;
-
-    win_T *pvwin = NULL;
-    FOR_ALL_WINDOWS_IN_TAB(wp, curtab) {
-      if (wp->w_p_pvw) {
-        pvwin = wp;
-        break;
-      }
-    }
-
-    if (pvwin != NULL) {
-      if (pvwin->w_winrow < curwin->w_winrow) {
-        above_row = pvwin->w_winrow + pvwin->w_height;
-      } else if (pvwin->w_winrow > curwin->w_winrow + curwin->w_height) {
-        below_row = pvwin->w_winrow;
-      }
-    }
-
-    // Figure out the size and position of the pum.
-    if (size < PUM_DEF_HEIGHT) {
-      pum_height = size;
-    } else {
-      pum_height = PUM_DEF_HEIGHT;
-    }
-
-    if ((p_ph > 0) && (pum_height > p_ph)) {
-      pum_height = (int)p_ph;
-    }
-
-    // Put the pum below "pum_win_row" if possible.
-    // If there are few lines decide on where there is more room.
-    if (pum_win_row + 2 >= below_row - pum_height
-        && pum_win_row - above_row > (below_row - above_row) / 2) {
-      // pum above "pum_win_row"
-      pum_above = true;
-
-      // Leave two lines of context if possible
-      if (curwin->w_wrow - curwin->w_cline_row >= 2) {
-        context_lines = 2;
-      } else {
-        context_lines = curwin->w_wrow - curwin->w_cline_row;
-      }
-
-      if (pum_win_row >= size + context_lines) {
-        pum_row = pum_win_row - size - context_lines;
-        pum_height = size;
-      } else {
-        pum_row = 0;
-        pum_height = pum_win_row - context_lines;
-      }
-
-      if ((p_ph > 0) && (pum_height > p_ph)) {
-        pum_row += pum_height - (int)p_ph;
-        pum_height = (int)p_ph;
-      }
-    } else {
-      // pum below "pum_win_row"
-      pum_above = false;
-
-      // Leave two lines of context if possible
-      validate_cheight();
-      if (curwin->w_cline_row + curwin->w_cline_height - curwin->w_wrow >= 3) {
-        context_lines = 3;
-      } else {
-        context_lines = curwin->w_cline_row
-                        + curwin->w_cline_height - curwin->w_wrow;
-      }
-
-      pum_row = pum_win_row + context_lines;
-      if (size > below_row - pum_row) {
-        pum_height = below_row - pum_row;
-      } else {
-        pum_height = size;
-      }
-
-      if ((p_ph > 0) && (pum_height > p_ph)) {
-        pum_height = (int)p_ph;
-      }
-    }
-
-    // don't display when we only have room for one line
-    if ((pum_height < 1) || ((pum_height == 1) && (size > 1))) {
-      return;
-    }
-
-    // If there is a preview window above avoid drawing over it.
-    if (pvwin != NULL && pum_row < above_row && pum_height > above_row) {
-      pum_row = above_row;
-      pum_height = pum_win_row - above_row;
-    }
-    if (pum_external) {
-      return;
-    }
-
-    pum_array = array;
-    pum_size = size;
-    pum_compute_size();
-    int max_width = pum_base_width;
-
-    // if there are more items than room we need a scrollbar
-    if (pum_height < size) {
-      pum_scrollbar = 1;
-      max_width++;
-    } else {
-      pum_scrollbar = 0;
-    }
-
-    if (def_width < max_width) {
-      def_width = max_width;
-    }
-
-    if ((((cursor_col < Columns - p_pw) || (cursor_col < Columns - max_width))
-         && !pum_rl)
-        || (pum_rl && ((cursor_col > p_pw) || (cursor_col > max_width)))) {
-      // align pum with "cursor_col"
-      pum_col = cursor_col;
-
-      // start with the maximum space available
-      if (pum_rl) {
-        pum_width = pum_col - pum_scrollbar + 1;
-      } else {
-        assert(Columns - pum_col - pum_scrollbar >= 0);
-        pum_width = Columns - pum_col - pum_scrollbar;
-      }
-
-      if ((pum_width > max_width + pum_kind_width + pum_extra_width + 1)
-          && (pum_width > p_pw)) {
-        // the width is more than needed for the items, make it
-        // narrower
-        pum_width = max_width + pum_kind_width + pum_extra_width + 1;
-
-        if (pum_width < p_pw) {
-          pum_width = (int)p_pw;
-        }
-      } else if (((cursor_col > p_pw || cursor_col > max_width) && !pum_rl)
-                 || (pum_rl && (cursor_col < Columns - p_pw
-                                || cursor_col < Columns - max_width))) {
-        // align pum edge with "cursor_col"
-        if (pum_rl && W_ENDCOL(curwin) < max_width + pum_scrollbar + 1) {
-          pum_col = cursor_col + max_width + pum_scrollbar + 1;
-          if (pum_col >= Columns) {
-            pum_col = Columns - 1;
-          }
-        } else if (!pum_rl) {
-          if (curwin->w_wincol > Columns - max_width - pum_scrollbar
-              && max_width <= p_pw) {
-            // use full width to end of the screen
-            pum_col = Columns - max_width - pum_scrollbar;
-            if (pum_col < 0) {
-              pum_col = 0;
-            }
-          }
-        }
-
-        if (pum_rl) {
-          pum_width = pum_col - pum_scrollbar + 1;
-        } else {
-          pum_width = Columns - pum_col - pum_scrollbar;
-        }
-
-        if (pum_width < p_pw) {
-          pum_width = (int)p_pw;
-          if (pum_rl) {
-            if (pum_width > pum_col) {
-              pum_width = pum_col;
-            }
-          } else {
-            if (pum_width >= Columns - pum_col) {
-              pum_width = Columns - pum_col - 1;
-            }
-          }
-        } else if (pum_width > max_width + pum_kind_width + pum_extra_width + 1
-                   && pum_width > p_pw) {
-          pum_width = max_width + pum_kind_width + pum_extra_width + 1;
-          if (pum_width < p_pw) {
-            pum_width = (int)p_pw;
-          }
-        }
-      }
-    } else if (Columns < def_width) {
-      // not enough room, will use what we have
-      if (pum_rl) {
-        assert(Columns - 1 >= INT_MIN);
-        pum_col = Columns - 1;
-      } else {
-        pum_col = 0;
-      }
-      pum_width = Columns - 1;
-    } else {
-      if (max_width > p_pw) {
-        // truncate
-        max_width = (int)p_pw;
-      }
-
-      if (pum_rl) {
-        pum_col = max_width - 1;
-      } else {
-        assert(Columns - max_width >= 0);
-        pum_col = Columns - max_width;
-      }
-      pum_width = max_width - pum_scrollbar;
-    }
-
-    // Set selected item and redraw.  If the window size changed need to redo
-    // the positioning.  Limit this to two times, when there is not much
-    // room the window size will keep changing.
-  } while (pum_set_selected(selected, redo_count) && (++redo_count <= 2));
-
-  pum_redraw();
-}
-
-/// Redraw the popup menu, using "pum_first" and "pum_selected".
-void pum_redraw(void)
-{
-  int row = 0;
-  int grid_col;
-  int attr_norm = win_hl_attr(curwin, HLF_PNI);
-  int attr_select = win_hl_attr(curwin, HLF_PSI);
-  int attr_scroll = win_hl_attr(curwin, HLF_PSB);
-  int attr_thumb = win_hl_attr(curwin, HLF_PST);
-  int attr;
-  int i;
-  int idx;
-  char_u *s;
-  char_u *p = NULL;
-  int totwidth, width, w;
-  int thumb_pos = 0;
-  int thumb_height = 1;
-  int round;
-  int n;
-
-  int grid_width = pum_width;
-  int col_off = 0;
-  bool extra_space = false;
-  if (pum_rl) {
-    col_off = pum_width;
-    if (pum_col < curwin->w_wincol + curwin->w_width - 1) {
-      grid_width += 1;
-      extra_space = true;
-    }
-  } else if (pum_col > 0) {
-    grid_width += 1;
-    col_off = 1;
-    extra_space = true;
-  }
-  if (pum_scrollbar > 0) {
-    grid_width++;
-  }
-
-  grid_assign_handle(&pum_grid);
-
-  pum_grid.zindex = ((State == MODE_CMDLINE)
-                     ? kZIndexCmdlinePopupMenu : kZIndexPopupMenu);
-
-  bool moved = ui_comp_put_grid(&pum_grid, pum_row, pum_col - col_off,
-                                pum_height, grid_width, false, true);
-  bool invalid_grid = moved || pum_invalid;
-  pum_invalid = false;
-  must_redraw_pum = false;
-
-  if (!pum_grid.chars
-      || pum_grid.rows != pum_height || pum_grid.cols != grid_width) {
-    grid_alloc(&pum_grid, pum_height, grid_width, !invalid_grid, false);
-    ui_call_grid_resize(pum_grid.handle, pum_grid.cols, pum_grid.rows);
-  } else if (invalid_grid) {
-    grid_invalidate(&pum_grid);
-  }
-  if (ui_has(kUIMultigrid)) {
-    const char *anchor = pum_above ? "SW" : "NW";
-    int row_off = pum_above ? -pum_height : 0;
-    ui_call_win_float_pos(pum_grid.handle, -1, cstr_as_string((char *)anchor),
-                          pum_anchor_grid, pum_row - row_off, pum_col - col_off,
-                          false, pum_grid.zindex);
-  }
-
-  // Never display more than we have
-  if (pum_first > pum_size - pum_height) {
-    pum_first = pum_size - pum_height;
-  }
-
-  if (pum_scrollbar) {
-    thumb_height = pum_height * pum_height / pum_size;
-    if (thumb_height == 0) {
-      thumb_height = 1;
-    }
-    thumb_pos = (pum_first * (pum_height - thumb_height)
-                 + (pum_size - pum_height) / 2)
-                / (pum_size - pum_height);
-  }
-
-  for (i = 0; i < pum_height; ++i) {
-    idx = i + pum_first;
-    attr = (idx == pum_selected) ? attr_select : attr_norm;
-
-    grid_puts_line_start(&pum_grid, row);
-
-    // prepend a space if there is room
-    if (extra_space) {
-      if (pum_rl) {
-        grid_putchar(&pum_grid, ' ', row, col_off + 1, attr);
-      } else {
-        grid_putchar(&pum_grid, ' ', row, col_off - 1, attr);
-      }
-    }
-
-    // Display each entry, use two spaces for a Tab.
-    // Do this 3 times: For the main text, kind and extra info
-    grid_col = col_off;
-    totwidth = 0;
-
-    for (round = 1; round <= 3; ++round) {
-      width = 0;
-      s = NULL;
-
-      switch (round) {
-      case 1:
-        p = pum_array[idx].pum_text;
-        break;
-
-      case 2:
-        p = pum_array[idx].pum_kind;
-        break;
-
-      case 3:
-        p = pum_array[idx].pum_extra;
-        break;
-      }
-
-      if (p != NULL) {
-        for (;; MB_PTR_ADV(p)) {
-          if (s == NULL) {
-            s = p;
-          }
-          w = ptr2cells((char *)p);
-
-          if ((*p == NUL) || (*p == TAB) || (totwidth + w > pum_width)) {
-            // Display the text that fits or comes before a Tab.
-            // First convert it to printable characters.
-            char_u *st;
-            char_u saved = *p;
-
-            if (saved != NUL) {
-              *p = NUL;
-            }
-            st = (char_u *)transstr((const char *)s, true);
-            if (saved != NUL) {
-              *p = saved;
-            }
-
-            if (pum_rl) {
-              char *rt = (char *)reverse_text(st);
-              char *rt_start = rt;
-              int size = vim_strsize(rt);
-
-              if (size > pum_width) {
-                do {
-                  size -= utf_ptr2cells(rt);
-                  MB_PTR_ADV(rt);
-                } while (size > pum_width);
-
-                if (size < pum_width) {
-                  // Most left character requires 2-cells but only 1 cell
-                  // is available on screen.  Put a '<' on the left of the
-                  // pum item
-                  *(--rt) = '<';
-                  size++;
-                }
-              }
-              grid_puts_len(&pum_grid, (char_u *)rt, (int)STRLEN(rt), row,
-                            grid_col - size + 1, attr);
-              xfree(rt_start);
-              xfree(st);
-              grid_col -= width;
-            } else {
-              // use grid_puts_len() to truncate the text
-              grid_puts(&pum_grid, st, row, grid_col, attr);
-              xfree(st);
-              grid_col += width;
-            }
-
-            if (*p != TAB) {
-              break;
-            }
-
-            // Display two spaces for a Tab.
-            if (pum_rl) {
-              grid_puts_len(&pum_grid, (char_u *)"  ", 2, row, grid_col - 1,
-                            attr);
-              grid_col -= 2;
-            } else {
-              grid_puts_len(&pum_grid, (char_u *)"  ", 2, row, grid_col, attr);
-              grid_col += 2;
-            }
-            totwidth += 2;
-            // start text at next char
-            s = NULL;
-            width = 0;
-          } else {
-            width += w;
-          }
-        }
-      }
-
-      if (round > 1) {
-        n = pum_kind_width + 1;
-      } else {
-        n = 1;
-      }
-
-      // Stop when there is nothing more to display.
-      if ((round == 3)
-          || ((round == 2)
-              && (pum_array[idx].pum_extra == NULL))
-          || ((round == 1)
-              && (pum_array[idx].pum_kind == NULL)
-              && (pum_array[idx].pum_extra == NULL))
-          || (pum_base_width + n >= pum_width)) {
-        break;
-      }
-
-      if (pum_rl) {
-        grid_fill(&pum_grid, row, row + 1, col_off - pum_base_width - n + 1,
-                  grid_col + 1, ' ', ' ', attr);
-        grid_col = col_off - pum_base_width - n + 1;
-      } else {
-        grid_fill(&pum_grid, row, row + 1, grid_col,
-                  col_off + pum_base_width + n, ' ', ' ', attr);
-        grid_col = col_off + pum_base_width + n;
-      }
-      totwidth = pum_base_width + n;
-    }
-
-    if (pum_rl) {
-      grid_fill(&pum_grid, row, row + 1, col_off - pum_width + 1, grid_col + 1,
-                ' ', ' ', attr);
-    } else {
-      grid_fill(&pum_grid, row, row + 1, grid_col, col_off + pum_width, ' ', ' ',
-                attr);
-    }
-
-    if (pum_scrollbar > 0) {
-      if (pum_rl) {
-        grid_putchar(&pum_grid, ' ', row, col_off - pum_width,
-                     i >= thumb_pos && i < thumb_pos + thumb_height
-                     ? attr_thumb : attr_scroll);
-      } else {
-        grid_putchar(&pum_grid, ' ', row, col_off + pum_width,
-                     i >= thumb_pos && i < thumb_pos + thumb_height
-                     ? attr_thumb : attr_scroll);
-      }
-    }
-    grid_puts_line_flush(false);
-    row++;
-  }
-}
-
-/// Set the index of the currently selected item.  The menu will scroll when
-/// necessary.  When "n" is out of range don't scroll.
-/// This may be repeated when the preview window is used:
-/// "repeat" == 0: open preview window normally
-/// "repeat" == 1: open preview window but don't set the size
-/// "repeat" == 2: don't open preview window
-///
-/// @param n
-/// @param repeat
-///
-/// @returns TRUE when the window was resized and the location of the popup
-/// menu must be recomputed.
-static int pum_set_selected(int n, int repeat)
-{
-  int resized = FALSE;
-  int context = pum_height / 2;
-
-  pum_selected = n;
-
-  if ((pum_selected >= 0) && (pum_selected < pum_size)) {
-    if (pum_first > pum_selected - 4) {
-      // scroll down; when we did a jump it's probably a PageUp then
-      // scroll a whole page
-      if (pum_first > pum_selected - 2) {
-        pum_first -= pum_height - 2;
-        if (pum_first < 0) {
-          pum_first = 0;
-        } else if (pum_first > pum_selected) {
-          pum_first = pum_selected;
-        }
-      } else {
-        pum_first = pum_selected;
-      }
-    } else if (pum_first < pum_selected - pum_height + 5) {
-      // scroll up; when we did a jump it's probably a PageDown then
-      // scroll a whole page
-      if (pum_first < pum_selected - pum_height + 1 + 2) {
-        pum_first += pum_height - 2;
-        if (pum_first < pum_selected - pum_height + 1) {
-          pum_first = pum_selected - pum_height + 1;
-        }
-      } else {
-        pum_first = pum_selected - pum_height + 1;
-      }
-    }
-
-    // Give a few lines of context when possible.
-    if (context > 3) {
-      context = 3;
-    }
-
-    if (pum_height > 2) {
-      if (pum_first > pum_selected - context) {
-        // scroll down
-        pum_first = pum_selected - context;
-
-        if (pum_first < 0) {
-          pum_first = 0;
-        }
-      } else if (pum_first < pum_selected + context - pum_height + 1) {
-        // scroll up
-        pum_first = pum_selected + context - pum_height + 1;
-      }
-    }
-
-    // Show extra info in the preview window if there is something and
-    // 'completeopt' contains "preview".
-    // Skip this when tried twice already.
-    // Skip this also when there is not much room.
-    // NOTE: Be very careful not to sync undo!
-    if ((pum_array[pum_selected].pum_info != NULL)
-        && (Rows > 10)
-        && (repeat <= 1)
-        && (vim_strchr((char *)p_cot, 'p') != NULL)) {
-      win_T *curwin_save = curwin;
-      tabpage_T *curtab_save = curtab;
-      int res = OK;
-
-      // Open a preview window.  3 lines by default.  Prefer
-      // 'previewheight' if set and smaller.
-      g_do_tagpreview = 3;
-
-      if ((p_pvh > 0) && (p_pvh < g_do_tagpreview)) {
-        g_do_tagpreview = (int)p_pvh;
-      }
-      RedrawingDisabled++;
-      // Prevent undo sync here, if an autocommand syncs undo weird
-      // things can happen to the undo tree.
-      no_u_sync++;
-      resized = prepare_tagpreview(false);
-      no_u_sync--;
-      RedrawingDisabled--;
-      g_do_tagpreview = 0;
-
-      if (curwin->w_p_pvw) {
-        if (!resized
-            && (curbuf->b_nwindows == 1)
-            && (curbuf->b_fname == NULL)
-            && bt_nofile(curbuf)
-            && (curbuf->b_p_bh[0] == 'w')) {
-          // Already a "wipeout" buffer, make it empty.
-          while (!buf_is_empty(curbuf)) {
-            ml_delete((linenr_T)1, false);
-          }
-        } else {
-          // Don't want to sync undo in the current buffer.
-          no_u_sync++;
-          res = do_ecmd(0, NULL, NULL, NULL, ECMD_ONE, 0, NULL);
-          no_u_sync--;
-
-          if (res == OK) {
-            // Edit a new, empty buffer. Set options for a "wipeout"
-            // buffer.
-            set_option_value("swf", 0L, NULL, OPT_LOCAL);
-            set_option_value("bl", 0L, NULL, OPT_LOCAL);
-            set_option_value("bt", 0L, "nofile", OPT_LOCAL);
-            set_option_value("bh", 0L, "wipe", OPT_LOCAL);
-            set_option_value("diff", 0L, NULL, OPT_LOCAL);
-          }
-        }
-
-        if (res == OK) {
-          char_u *p, *e;
-          linenr_T lnum = 0;
-
-          for (p = pum_array[pum_selected].pum_info; *p != NUL;) {
-            e = (char_u *)vim_strchr((char *)p, '\n');
-            if (e == NULL) {
-              ml_append(lnum++, (char *)p, 0, false);
-              break;
-            } else {
-              *e = NUL;
-              ml_append(lnum++, (char *)p, (int)(e - p + 1), false);
-              *e = '\n';
-              p = e + 1;
-            }
-          }
-
-          // Increase the height of the preview window to show the
-          // text, but no more than 'previewheight' lines.
-          if (repeat == 0) {
-            if (lnum > p_pvh) {
-              lnum = (linenr_T)p_pvh;
-            }
-
-            if (curwin->w_height < lnum) {
-              win_setheight((int)lnum);
-              resized = TRUE;
-            }
-          }
-
-          curbuf->b_changed = false;
-          curbuf->b_p_ma = FALSE;
-          curwin->w_cursor.lnum = 1;
-          curwin->w_cursor.col = 0;
-
-          if ((curwin != curwin_save && win_valid(curwin_save))
-              || (curtab != curtab_save && valid_tabpage(curtab_save))) {
-            if (curtab != curtab_save && valid_tabpage(curtab_save)) {
-              goto_tabpage_tp(curtab_save, false, false);
-            }
-
-            // When the first completion is done and the preview
-            // window is not resized, skip the preview window's
-            // status line redrawing.
-            if (ins_compl_active() && !resized) {
-              curwin->w_redr_status = FALSE;
-            }
-
-            // Return cursor to where we were
-            validate_cursor();
-            redraw_later(curwin, SOME_VALID);
-
-            // When the preview window was resized we need to
-            // update the view on the buffer.  Only go back to
-            // the window when needed, otherwise it will always be
-            // redraw.
-            if (resized) {
-              no_u_sync++;
-              win_enter(curwin_save, true);
-              no_u_sync--;
-              update_topline(curwin);
-            }
-
-            // Update the screen before drawing the popup menu.
-            // Enable updating the status lines.
-            // TODO(bfredl): can simplify, get rid of the flag munging?
-            // or at least eliminate extra redraw before win_enter()?
-            pum_is_visible = false;
-            update_screen(0);
-            pum_is_visible = true;
-
-            if (!resized && win_valid(curwin_save)) {
-              no_u_sync++;
-              win_enter(curwin_save, true);
-              no_u_sync--;
-            }
-
-            // May need to update the screen again when there are
-            // autocommands involved.
-            pum_is_visible = false;
-            update_screen(0);
-            pum_is_visible = true;
-          }
-        }
-      }
-    }
-  }
-
-  return resized;
-}
-
-/// Undisplay the popup menu (later).
-void pum_undisplay(bool immediate)
-{
-  pum_is_visible = false;
-  pum_array = NULL;
-  must_redraw_pum = false;
-
-  if (immediate) {
-    pum_check_clear();
-  }
-}
-
-void pum_check_clear(void)
-{
-  if (!pum_is_visible && pum_is_drawn) {
-    if (pum_external) {
-      ui_call_popupmenu_hide();
-    } else {
-      ui_comp_remove_grid(&pum_grid);
-      if (ui_has(kUIMultigrid)) {
-        ui_call_win_close(pum_grid.handle);
-        ui_call_grid_destroy(pum_grid.handle);
-      }
-      // TODO(bfredl): consider keeping float grids allocated.
-      grid_free(&pum_grid);
-    }
-    pum_is_drawn = false;
-  }
-}
-
-/// Clear the popup menu.  Currently only resets the offset to the first
-/// displayed item.
-void pum_clear(void)
-{
-  pum_first = 0;
-}
-
-/// @return true if the popup menu is displayed.
-bool pum_visible(void)
-{
-  return pum_is_visible;
-}
-
-/// @return true if the popup menu is displayed and drawn on the grid.
-bool pum_drawn(void)
-{
-  return pum_visible() && !pum_external;
-}
-
-/// Screen was cleared, need to redraw next time
-void pum_invalidate(void)
-{
-  pum_invalid = true;
-}
-
-void pum_recompose(void)
-{
-  ui_comp_compose_grid(&pum_grid);
-}
-
-/// Gets the height of the menu.
-///
-/// @return the height of the popup menu, the number of entries visible.
-/// Only valid when pum_visible() returns TRUE!
-int pum_get_height(void)
-{
-  if (pum_external) {
-    int ui_pum_height = ui_pum_get_height();
-    if (ui_pum_height) {
-      return ui_pum_height;
-    }
-  }
-  return pum_height;
-}
-
-/// Add size information about the pum to "dict".
-void pum_set_event_info(dict_T *dict)
-{
-  if (!pum_visible()) {
-    return;
-  }
-  double w, h, r, c;
-  if (!ui_pum_get_pos(&w, &h, &r, &c)) {
-    w = (double)pum_width;
-    h = (double)pum_height;
-    r = (double)pum_row;
-    c = (double)pum_col;
-  }
-  (void)tv_dict_add_float(dict, S_LEN("height"), h);
-  (void)tv_dict_add_float(dict, S_LEN("width"), w);
-  (void)tv_dict_add_float(dict, S_LEN("row"), r);
-  (void)tv_dict_add_float(dict, S_LEN("col"), c);
-  (void)tv_dict_add_nr(dict, S_LEN("size"), pum_size);
-  (void)tv_dict_add_bool(dict, S_LEN("scrollbar"),
-                         pum_scrollbar ? kBoolVarTrue : kBoolVarFalse);
-}
-
-static void pum_position_at_mouse(int min_width)
-{
-  pum_anchor_grid = mouse_grid;
-  if (Rows - mouse_row > pum_size) {
-    // Enough space below the mouse row.
-    pum_above = false;
-    pum_row = mouse_row + 1;
-    if (pum_height > Rows - pum_row) {
-      pum_height = Rows - pum_row;
-    }
-  } else {
-    // Show above the mouse row, reduce height if it does not fit.
-    pum_above = true;
-    pum_row = mouse_row - pum_size;
-    if (pum_row < 0) {
-      pum_height += pum_row;
-      pum_row = 0;
-    }
-  }
-  if (Columns - mouse_col >= pum_base_width || Columns - mouse_col > min_width) {
-    // Enough space to show at mouse column.
-    pum_col = mouse_col;
-  } else {
-    // Not enough space, right align with window.
-    pum_col = Columns - (pum_base_width > min_width ? min_width : pum_base_width);
-  }
-
-  pum_width = Columns - pum_col;
-  if (pum_width > pum_base_width + 1) {
-    pum_width = pum_base_width + 1;
-  }
-}
-
-/// Select the pum entry at the mouse position.
-static void pum_select_mouse_pos(void)
-{
-  if (mouse_grid == pum_grid.handle) {
-    pum_selected = mouse_row;
-    return;
-  } else if (mouse_grid != pum_anchor_grid) {
-    pum_selected = -1;
-    return;
-  }
-
-  int idx = mouse_row - pum_row;
-
-  if (idx < 0 || idx >= pum_size) {
-    pum_selected = -1;
-  } else if (*pum_array[idx].pum_text != NUL) {
-    pum_selected = idx;
-  }
-}
-
-/// Execute the currently selected popup menu item.
-static void pum_execute_menu(vimmenu_T *menu, int mode)
-{
-  int idx = 0;
-  exarg_T ea;
-
-  for (vimmenu_T *mp = menu->children; mp != NULL; mp = mp->next) {
-    if ((mp->modes & mp->enabled & mode) && idx++ == pum_selected) {
-      CLEAR_FIELD(ea);
-      execute_menu(&ea, mp, -1);
-      break;
-    }
-  }
-}
-
-/// Open the terminal version of the popup menu and don't return until it is closed.
-void pum_show_popupmenu(vimmenu_T *menu)
-{
-  pum_undisplay(true);
-  pum_size = 0;
-  int mode = get_menu_mode_flag();
-
-  for (vimmenu_T *mp = menu->children; mp != NULL; mp = mp->next) {
-    if (menu_is_separator(mp->dname) || (mp->modes & mp->enabled & mode)) {
-      pum_size++;
-    }
-  }
-
-  // When there are only Terminal mode menus, using "popup Edit" results in
-  // pum_size being zero.
-  if (pum_size <= 0) {
-    emsg(e_menuothermode);
-    return;
-  }
-
-  int idx = 0;
-  pumitem_T *array = (pumitem_T *)xcalloc((size_t)pum_size, sizeof(pumitem_T));
-
-  for (vimmenu_T *mp = menu->children; mp != NULL; mp = mp->next) {
-    if (menu_is_separator(mp->dname)) {
-      array[idx++].pum_text = (char_u *)"";
-    } else if (mp->modes & mp->enabled & mode) {
-      array[idx++].pum_text = (char_u *)mp->dname;
-    }
-  }
-
-  pum_array = array;
-  pum_compute_size();
-  pum_scrollbar = 0;
-  pum_height = pum_size;
-  pum_position_at_mouse(20);
-
-  pum_selected = -1;
-  pum_first = 0;
-
-  for (;;) {
-    pum_is_visible = true;
-    pum_is_drawn = true;
-    pum_redraw();
-    setcursor_mayforce(true);
-    ui_flush();
-
-    int c = vgetc();
-
-    // Bail out when typing Esc, CTRL-C or some callback or <expr> mapping
-    // closed the popup menu.
-    if (c == ESC || c == Ctrl_C || pum_array == NULL) {
-      break;
-    } else if (c == CAR || c == NL) {
-      // enter: select current item, if any, and close
-      pum_execute_menu(menu, mode);
-      break;
-    } else if (c == 'k' || c == K_UP || c == K_MOUSEUP) {
-      // cursor up: select previous item
-      while (pum_selected > 0) {
-        pum_selected--;
-        if (*array[pum_selected].pum_text != NUL) {
-          break;
-        }
-      }
-    } else if (c == 'j' || c == K_DOWN || c == K_MOUSEDOWN) {
-      // cursor down: select next item
-      while (pum_selected < pum_size - 1) {
-        pum_selected++;
-        if (*array[pum_selected].pum_text != NUL) {
-          break;
-        }
-      }
-    } else if (c == K_RIGHTMOUSE) {
-      // Right mouse down: reposition the menu.
-      vungetc(c);
-      break;
-    } else if (c == K_LEFTDRAG || c == K_RIGHTDRAG || c == K_MOUSEMOVE) {
-      // mouse moved: select item in the mouse row
-      pum_select_mouse_pos();
-    } else if (c == K_LEFTMOUSE || c == K_LEFTMOUSE_NM || c == K_RIGHTRELEASE) {
-      // left mouse click: select clicked item, if any, and close;
-      // right mouse release: select clicked item, close if any
-      pum_select_mouse_pos();
-      if (pum_selected >= 0) {
-        pum_execute_menu(menu, mode);
-        break;
-      }
-      if (c == K_LEFTMOUSE || c == K_LEFTMOUSE_NM) {
-        break;
-      }
-    }
-  }
-
-  xfree(array);
-  pum_undisplay(true);
-}
-
-void pum_make_popup(const char *path_name, int use_mouse_pos)
-{
-  if (!use_mouse_pos) {
-    // Hack: set mouse position at the cursor so that the menu pops up
-    // around there.
-    mouse_row = curwin->w_winrow + curwin->w_wrow;
-    mouse_col = curwin->w_wincol + curwin->w_wcol;
-  }
-
-  vimmenu_T *menu = menu_find(path_name);
-  if (menu != NULL) {
-    pum_show_popupmenu(menu);
-  }
-}