1 files changed, 0 insertions, 171 deletions
diff --git a/runtime/lua/vim/lsp/util.lua b/runtime/lua/vim/lsp/util.lua
index 6e6e5bd64c..27210dc385 100644
--- a/runtime/lua/vim/lsp/util.lua
+++ b/runtime/lua/vim/lsp/util.lua
@@ -367,177 +367,6 @@ end
 -- function M.glob_to_regex(glob)
 -- end
 
----@private
---- Finds the first line and column of the difference between old and new lines
----@param old_lines table list of lines
----@param new_lines table list of lines
----@returns (int, int) start_line_idx and start_col_idx of range
-local function first_difference(old_lines, new_lines, start_line_idx)
-  local line_count = math.min(#old_lines, #new_lines)
-  if line_count == 0 then return 1, 1 end
-  if not start_line_idx then
-    for i = 1, line_count do
-      start_line_idx = i
-      if old_lines[start_line_idx] ~= new_lines[start_line_idx] then
-        break
-      end
-    end
-  end
-  local old_line = old_lines[start_line_idx]
-  local new_line = new_lines[start_line_idx]
-  local length = math.min(#old_line, #new_line)
-  local start_col_idx = 1
-  while start_col_idx <= length do
-    if string.sub(old_line, start_col_idx, start_col_idx) ~= string.sub(new_line, start_col_idx, start_col_idx) then
-      break
-    end
-    start_col_idx  = start_col_idx  + 1
-  end
-  return start_line_idx, start_col_idx
-end
-
-
----@private
---- Finds the last line and column of the differences between old and new lines
----@param old_lines table list of lines
----@param new_lines table list of lines
----@param start_char integer First different character idx of range
----@returns (int, int) end_line_idx and end_col_idx of range
-local function last_difference(old_lines, new_lines, start_char, end_line_idx)
-  local line_count = math.min(#old_lines, #new_lines)
-  if line_count == 0 then return 0,0 end
-  if not end_line_idx then
-    end_line_idx = -1
-  end
-  for i = end_line_idx, -line_count, -1  do
-    if old_lines[#old_lines + i + 1] ~= new_lines[#new_lines + i + 1] then
-      end_line_idx = i
-      break
-    end
-  end
-  local old_line
-  local new_line
-  if end_line_idx <= -line_count then
-    end_line_idx = -line_count
-    old_line  = string.sub(old_lines[#old_lines + end_line_idx + 1], start_char)
-    new_line  = string.sub(new_lines[#new_lines + end_line_idx + 1], start_char)
-  else
-    old_line  = old_lines[#old_lines + end_line_idx + 1]
-    new_line  = new_lines[#new_lines + end_line_idx + 1]
-  end
-  local old_line_length = #old_line
-  local new_line_length = #new_line
-  local length = math.min(old_line_length, new_line_length)
-  local end_col_idx = -1
-  while end_col_idx >= -length do
-    local old_char =  string.sub(old_line, old_line_length + end_col_idx + 1, old_line_length + end_col_idx + 1)
-    local new_char =  string.sub(new_line, new_line_length + end_col_idx + 1, new_line_length + end_col_idx + 1)
-    if old_char ~= new_char then
-      break
-    end
-    end_col_idx = end_col_idx - 1
-  end
-  return end_line_idx, end_col_idx
-
-end
-
----@private
---- Get the text of the range defined by start and end line/column
----@param lines table list of lines
----@param start_char integer First different character idx of range
----@param end_char integer Last different character idx of range
----@param start_line integer First different line idx of range
----@param end_line integer Last different line idx of range
----@returns string text extracted from defined region
-local function extract_text(lines, start_line, start_char, end_line, end_char)
-  if start_line == #lines + end_line + 1 then
-    if end_line == 0 then return '' end
-    local line = lines[start_line]
-    local length = #line + end_char - start_char
-    return string.sub(line, start_char, start_char + length + 1)
-  end
-  local result = string.sub(lines[start_line], start_char) .. '\n'
-  for line_idx = start_line + 1, #lines + end_line do
-    result = result .. lines[line_idx] .. '\n'
-  end
-  if end_line ~= 0 then
-    local line = lines[#lines + end_line + 1]
-    local length = #line + end_char + 1
-    result = result .. string.sub(line, 1, length)
-  end
-  return result
-end
-
----@private
---- Compute the length of the substituted range
----@param lines table list of lines
----@param start_char integer First different character idx of range
----@param end_char integer Last different character idx of range
----@param start_line integer First different line idx of range
----@param end_line integer Last different line idx of range
----@returns (int, int) end_line_idx and end_col_idx of range
-local function compute_length(lines, start_line, start_char, end_line, end_char)
-  local adj_end_line = #lines + end_line + 1
-  local adj_end_char
-  if adj_end_line > #lines then
-    adj_end_char =  end_char - 1
-  else
-    adj_end_char = #lines[adj_end_line] + end_char
-  end
-  if start_line == adj_end_line then
-    return adj_end_char - start_char + 1
-  end
-  local result = #lines[start_line] - start_char + 1
-  for line = start_line + 1, adj_end_line -1 do
-    result = result + #lines[line] + 1
-  end
-  result = result + adj_end_char + 1
-  return result
-end
-
---- Returns the range table for the difference between old and new lines
----@param old_lines table list of lines
----@param new_lines table list of lines
----@param start_line_idx int line to begin search for first difference
----@param end_line_idx int line to begin search for last difference
----@param offset_encoding string encoding requested by language server
----@returns table start_line_idx and start_col_idx of range
-function M.compute_diff(old_lines, new_lines, start_line_idx, end_line_idx, offset_encoding)
-  local start_line, start_char = first_difference(old_lines, new_lines, start_line_idx)
-  local end_line, end_char = last_difference(vim.list_slice(old_lines, start_line, #old_lines),
-      vim.list_slice(new_lines, start_line, #new_lines), start_char, end_line_idx)
-  local text = extract_text(new_lines, start_line, start_char, end_line, end_char)
-  local length = compute_length(old_lines, start_line, start_char, end_line, end_char)
-
-  local adj_end_line = #old_lines + end_line
-  local adj_end_char
-  if end_line == 0 then
-    adj_end_char = 0
-  else
-    adj_end_char = #old_lines[#old_lines + end_line + 1] + end_char + 1
-  end
-
-  local _
-  if offset_encoding == "utf-16" then
-    _, start_char = vim.str_utfindex(old_lines[start_line], start_char - 1)
-    _, end_char = vim.str_utfindex(old_lines[#old_lines + end_line + 1], adj_end_char)
-  else
-    start_char = start_char - 1
-    end_char = adj_end_char
-  end
-
-  local result = {
-    range = {
-      start = { line = start_line - 1, character = start_char},
-      ["end"] = { line = adj_end_line, character = end_char}
-    },
-    text = text,
-    rangeLength = length + 1,
-  }
-
-  return result
-end
-
 --- Can be used to extract the completion items from a
 --- `textDocument/completion` request, which may return one of
 --- `CompletionItem[]`, `CompletionList` or null.