diff --git a/src/regexp.c b/src/regexp.c
index 3450f3a..853d255 100644
--- a/src/regexp.c
+++ b/src/regexp.c
@@ -365,6 +365,7 @@
 static char_u e_z_not_allowed[] = N_("E66: \\z( not allowed here");
 static char_u e_z1_not_allowed[] = N_("E67: \\z1 et al. not allowed here");
 #endif
+static char_u e_missing_sb[] = N_("E69: Missing ] after %s%%[");
 
 #define NOT_MULTI	0
 #define MULTI_ONE	1
@@ -1173,6 +1174,16 @@
     return 0;
 }
 
+static void get_cpo_flags __ARGS((void));
+static int reg_cpo_lit; /* 'cpoptions' contains 'l' flag */
+static int reg_cpo_bsl; /* 'cpoptions' contains '\' flag */
+
+    static void
+get_cpo_flags()
+{
+    reg_cpo_lit = vim_strchr(p_cpo, CPO_LITERAL) != NULL;
+    reg_cpo_bsl = vim_strchr(p_cpo, CPO_BACKSL) != NULL;
+}
 
 /*
  * Skip over a "[]" range.
@@ -1183,15 +1194,10 @@
 skip_anyof(p)
     char_u	*p;
 {
-    int		cpo_lit;	/* 'cpoptions' contains 'l' flag */
-    int		cpo_bsl;	/* 'cpoptions' contains '\' flag */
 #ifdef FEAT_MBYTE
     int		l;
 #endif
 
-    cpo_lit = vim_strchr(p_cpo, CPO_LITERAL) != NULL;
-    cpo_bsl = vim_strchr(p_cpo, CPO_BACKSL) != NULL;
-
     if (*p == '^')	/* Complement of range. */
 	++p;
     if (*p == ']' || *p == '-')
@@ -1210,9 +1216,9 @@
 		    mb_ptr_adv(p);
 	    }
 	else if (*p == '\\'
-		&& !cpo_bsl
+		&& !reg_cpo_bsl
 		&& (vim_strchr(REGEXP_INRANGE, p[1]) != NULL
-		    || (!cpo_lit && vim_strchr(REGEXP_ABBR, p[1]) != NULL)))
+		    || (!reg_cpo_lit && vim_strchr(REGEXP_ABBR, p[1]) != NULL)))
 	    p += 2;
 	else if (*p == '[')
 	{
@@ -1251,6 +1257,7 @@
 	mymagic = MAGIC_ON;
     else
 	mymagic = MAGIC_OFF;
+    get_cpo_flags();
 
     for (; p[0] != NUL; mb_ptr_adv(p))
     {
@@ -1462,6 +1469,7 @@
 	reg_magic = MAGIC_OFF;
     reg_string = (re_flags & RE_STRING);
     reg_strict = (re_flags & RE_STRICT);
+    get_cpo_flags();
 
     num_complex_braces = 0;
     regnpar = 1;
@@ -1909,15 +1917,11 @@
 {
     char_u	    *ret;
     int		    flags;
-    int		    cpo_lit;	    /* 'cpoptions' contains 'l' flag */
-    int		    cpo_bsl;	    /* 'cpoptions' contains '\' flag */
     int		    c;
     char_u	    *p;
     int		    extra = 0;
 
     *flagp = WORST;		/* Tentatively. */
-    cpo_lit = vim_strchr(p_cpo, CPO_LITERAL) != NULL;
-    cpo_bsl = vim_strchr(p_cpo, CPO_BACKSL) != NULL;
 
     c = getchr();
     switch (c)
@@ -2207,7 +2211,7 @@
 			      while ((c = getchr()) != ']')
 			      {
 				  if (c == NUL)
-				      EMSG2_RET_NULL(_("E69: Missing ] after %s%%["),
+				      EMSG2_RET_NULL(_(e_missing_sb),
 						      reg_magic == MAGIC_ALL);
 				  br = regnode(BRANCH);
 				  if (ret == NULL)
@@ -2410,7 +2414,7 @@
 			    }
 
 			    /* Handle \o40, \x20 and \u20AC style sequences */
-			    if (endc == '\\' && !cpo_lit && !cpo_bsl)
+			    if (endc == '\\' && !reg_cpo_lit && !reg_cpo_bsl)
 				endc = coll_get_char();
 
 			    if (startc > endc)
@@ -2452,9 +2456,9 @@
 		     * Posix doesn't recognize backslash at all.
 		     */
 		    else if (*regparse == '\\'
-			    && !cpo_bsl
+			    && !reg_cpo_bsl
 			    && (vim_strchr(REGEXP_INRANGE, regparse[1]) != NULL
-				|| (!cpo_lit
+				|| (!reg_cpo_lit
 				    && vim_strchr(REGEXP_ABBR,
 						       regparse[1]) != NULL)))
 		    {