From 4a858add914d5bd680a27fd0f135bc67c219413c Mon Sep 17 00:00:00 2001
From: McAuleyPenney <134115@gmail.com>
Date: Thu, 28 Oct 2021 09:11:35 -0700
Subject: [PATCH] [docs,feat]: protect search history and jump list

    - add `keepjumps` and `keeppatterns` modifiers to regex commands
    - update readme
---
 lua/tidy/init.lua | 8 +++-----
 readme.md         | 3 +++
 2 files changed, 6 insertions(+), 5 deletions(-)

diff --git a/lua/tidy/init.lua b/lua/tidy/init.lua
index 6babc40..45e7697 100644
--- a/lua/tidy/init.lua
+++ b/lua/tidy/init.lua
@@ -1,7 +1,5 @@
 -- MP
--- These sources did all the work
---  1. https://vim.fandom.com/wiki/Remove_unwanted_spaces#Automatically_removing_all_trailing_whitespace
---  2. https://stackoverflow.com/a/7501902
+
 
 local M = {}
 
@@ -12,10 +10,10 @@ function M.tidy_up()
     local pos = vim.api.nvim_win_get_cursor( 0 )
 
     -- delete all whitespace, see source 1
-    vim.cmd[[:%s/\s\+$//e]]
+    vim.cmd[[:keepjumps keeppatterns %s/\s\+$//e]]
 
     -- delete all lines at end of buffer, see source 2
-    vim.cmd[[:silent! 0;/^\%(\n*.\)\@!/,$d]]
+    vim.cmd[[:keepjumps keeppatterns silent! 0;/^\%(\n*.\)\@!/,$d]]
 
     -- get row count after line deletion
     local end_row = vim.api.nvim_buf_line_count( 0 )
diff --git a/readme.md b/readme.md
index 2603eaf..0b895f2 100644
--- a/readme.md
+++ b/readme.md
@@ -14,3 +14,6 @@ https://user-images.githubusercontent.com/59481467/138811091-05031eb1-96fc-4915-
 Credits:
 1. [Vim Tips Wiki entry for removing unwanted spaces](https://vim.fandom.com/wiki/Remove_unwanted_spaces#Automatically_removing_all_trailing_whitespace)
 2. ib., the author of [this stack overflow answer](https://stackoverflow.com/a/7501902)
+3. [This line](https://github.com/gpanders/editorconfig.nvim/blob/ae3586771996b2fb1662eb0c17f5d1f4f5759bb7/lua/editorconfig.lua#L180)
+in [gpanders/editorconfig.nvim](https://github.com/gpanders/editorconfig.nvim) for exposing me to the `keepjumps`
+and `keeppatterns` modifiers