From e5d0b574be695f5a887504f86cb3a945af39c57d Mon Sep 17 00:00:00 2001
From: Yuri Pieters <magejohnyjtp@gmail.com>
Date: Mon, 30 Dec 2019 12:09:02 +0000
Subject: [PATCH 1/2] Set 'notildeop' before preserving the case of the small
 camel

When 'tildeop' is set the command `normal! l~` doesn't work. So back up the option, set `notildeop`, and restore it afterwards.
---
 autoload/textobj/variable_segment.vim | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/autoload/textobj/variable_segment.vim b/autoload/textobj/variable_segment.vim
index 5c2995f..7671f8a 100644
--- a/autoload/textobj/variable_segment.vim
+++ b/autoload/textobj/variable_segment.vim
@@ -38,7 +38,10 @@ function! s:select_a()
         if start_column - 2 <= word_start ||
          \ getline(start_line)[:start_column - 2] =~# '^_*$'
             call setpos('.', end_position)
+            let l:tildeop = &tildeop
+            set notildeop
             normal! l~
+            let &tildeop = l:tildeop
         endif
     endif
 

From c63c5e7d330edf430de4aed991daec3ccd1b0869 Mon Sep 17 00:00:00 2001
From: Yuri Pieters <magejohnyjtp@gmail.com>
Date: Mon, 30 Dec 2019 14:53:58 +0000
Subject: [PATCH 2/2] Test that 'tildeop' being set does not effect 'av'

---
 t/variable-segment.vim | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/t/variable-segment.vim b/t/variable-segment.vim
index b5f4252..aadafea 100644
--- a/t/variable-segment.vim
+++ b/t/variable-segment.vim
@@ -404,4 +404,13 @@ describe 'av'
         normal dav
         Expect getline(1) == 'foo bazQuux'
     end
+    it 'selects leading small camels and swaps case even with tildeop'
+        set tildeop  " Vim default is notildeop
+        put! = 'fooBarQuux'
+        normal! 0
+        normal dav
+        Expect getline(1) == 'barQuux'
+        Expect &tildeop == 1
+        set notildeop
+    end
 end