refactor(lsp): rename `offset_encoding` to `position_encoding` #31286

Problem:
LSP spec uses the term "position encoding" where we say "offset encoding".

Solution:
- Rename it everywhere except `vim.lsp.Client.offset_encoding` (which would be breaking).
- Mention "position encoding" in the documentation for `vim.lsp.Client.offset_encoding`.

1 files changed, 3 insertions, 3 deletions

diff --git a/runtime/lua/vim/lsp/completion.lua b/runtime/lua/vim/lsp/completion.lua
index 0f388a88fd..1e950f625e 100644
--- a/runtime/lua/vim/lsp/completion.lua
+++ b/runtime/lua/vim/lsp/completion.lua
@@ -550,7 +550,7 @@ local function on_complete_done()
     return
   end
 
-  local offset_encoding = client.offset_encoding or 'utf-16'
+  local position_encoding = client.offset_encoding or 'utf-16'
   local resolve_provider = (client.server_capabilities.completionProvider or {}).resolveProvider
 
   local function clear_word()
@@ -576,7 +576,7 @@ local function on_complete_done()
 
   if completion_item.additionalTextEdits and next(completion_item.additionalTextEdits) then
     clear_word()
-    lsp.util.apply_text_edits(completion_item.additionalTextEdits, bufnr, offset_encoding)
+    lsp.util.apply_text_edits(completion_item.additionalTextEdits, bufnr, position_encoding)
     apply_snippet_and_command()
   elseif resolve_provider and type(completion_item) == 'table' then
     local changedtick = vim.b[bufnr].changedtick
@@ -591,7 +591,7 @@ local function on_complete_done()
       if err then
         vim.notify_once(err.message, vim.log.levels.WARN)
       elseif result and result.additionalTextEdits then
-        lsp.util.apply_text_edits(result.additionalTextEdits, bufnr, offset_encoding)
+        lsp.util.apply_text_edits(result.additionalTextEdits, bufnr, position_encoding)
         if result.command then
           completion_item.command = result.command
         end