patch 8.1.0542: shiftwidth() does not take 'vartabstop' into account commit https://github.com/vim/vim/commit/f951416a8396a54bbbe21de1a8b16716428549f2 Author: Bram Moolenaar <Bram@vim.org> Date: Thu Nov 22 03:08:29 2018 +0100 patch 8.1.0542: shiftwidth() does not take 'vartabstop' into account Problem: shiftwidth() does not take 'vartabstop' into account. Solution: Use the cursor position or a position explicitly passed. Also make >> and << work better with 'vartabstop'. (Christian Brabandt)

--- a/src/proto/option.pro
+++ b/src/proto/option.pro
@@ -72,6 +72,9 @@ int *tabstop_copy(int *oldts);
 int tabstop_count(int *ts);
 int tabstop_first(int *ts);
 long get_sw_value(buf_T *buf);
+long get_sw_value_indent(buf_T *buf);
+long get_sw_value_pos(buf_T *buf, pos_T *pos);
+long get_sw_value_col(buf_T *buf, colnr_T col);
 long get_sts_value(void);
 void find_mps_values(int *initc, int *findc, int *backwards, int switchit);
 unsigned int get_bkc_value(buf_T *buf);