commit c53b467473160b5cfce77277fbae414bf43e66ce
author Christian Brabandt <cb@256bit.org> Sat Jan 15 10:01:05 2022 +0000
committer Bram Moolenaar <Bram@vim.org> Sat Jan 15 10:01:05 2022 +0000
tree 0b9c46f21daf65cd1dde027cbae993bcb7d0608f
parent ece07639f4989a300276d66b13553c21a7435030

patch 8.2.4093: cached breakindent values not initialized properly

Problem:    Cached breakindent values not initialized properly.
Solution:   Initialize and cache formatlistpat. (Christian Brabandt,
            closes #9526, closes #9512)

src/indent.c

diff --git a/src/indent.c b/src/indent.c
index b74bae6..a1012d2 100644
--- a/src/indent.c
+++ b/src/indent.c
@@ -924,6 +924,8 @@
 # endif
     static int      prev_list = 0;	// cached list value
     static int      prev_listopt = 0;	// cached w_p_briopt_list value
+    // cached formatlistpat value
+    static char_u   *prev_flp = NULL;
     int		    bri = 0;
     // window width minus window margin space, i.e. what rests for text
     const int	    eff_wwidth = wp->w_width
@@ -931,10 +933,16 @@
 				&& (vim_strchr(p_cpo, CPO_NUMCOL) == NULL)
 						? number_width(wp) + 1 : 0);
 
-    // used cached indent, unless line, 'tabstop' or briopt_list changed
+    // used cached indent, unless
+    // - line pointer changed
+    // - 'tabstop' changed
+    // - 'briopt_list changed' changed or
+    // - 'formatlistpattern' changed
     if (prev_line != line || prev_ts != wp->w_buffer->b_p_ts
 	    || prev_tick != CHANGEDTICK(wp->w_buffer)
 	    || prev_listopt != wp->w_briopt_list
+	    || (prev_flp == NULL
+		|| (STRCMP(prev_flp, get_flp_value(wp->w_buffer)) != 0))
 # ifdef FEAT_VARTABS
 	    || prev_vts != wp->w_buffer->b_p_vts_array
 # endif
@@ -953,13 +961,16 @@
 				     (int)wp->w_buffer->b_p_ts, wp->w_p_list);
 # endif
 	prev_listopt = wp->w_briopt_list;
+	prev_list = 0;
+	vim_free(prev_flp);
+	prev_flp = vim_strsave(get_flp_value(wp->w_buffer));
 	// add additional indent for numbered lists
 	if (wp->w_briopt_list != 0)
 	{
 	    regmatch_T	    regmatch;
 
-	    regmatch.regprog = vim_regcomp(curbuf->b_p_flp,
-				       RE_MAGIC + RE_STRING + RE_AUTO + RE_STRICT);
+	    regmatch.regprog = vim_regcomp(prev_flp,
+				   RE_MAGIC + RE_STRING + RE_AUTO + RE_STRICT);
 
 	    if (regmatch.regprog != NULL)
 	    {