updated for version 7.3.686
Problem: Using CTRL-\ e mappings is useful also when entering an
expression, but it doesn't work. (Marcin Szamotulski)
Solution: Allow using CTRL-\ e when entering an expression if it was not
typed.
diff --git a/src/ex_getln.c b/src/ex_getln.c
index 9cf1287..249dafb 100644
--- a/src/ex_getln.c
+++ b/src/ex_getln.c
@@ -667,9 +667,10 @@
c = plain_vgetc();
--no_mapping;
--allow_keys;
- /* CTRL-\ e doesn't work when obtaining an expression. */
- if (c != Ctrl_N && c != Ctrl_G
- && (c != 'e' || ccline.cmdfirstc == '='))
+ /* CTRL-\ e doesn't work when obtaining an expression, unless it
+ * is in a mapping. */
+ if (c != Ctrl_N && c != Ctrl_G && (c != 'e'
+ || (ccline.cmdfirstc == '=' && KeyTyped)))
{
vungetc(c);
c = Ctrl_BSL;