patch 9.0.0449: there is no easy way to translate a key code into a string
Problem: There is no easy way to translate a string with a key code into a
readable string.
Solution: Add the keytrans() function. (closes #11114)
diff --git a/src/message.c b/src/message.c
index b68c089..57197c1 100644
--- a/src/message.c
+++ b/src/message.c
@@ -1759,7 +1759,7 @@
++str;
}
else
- text = (char *)str2special(&str, from);
+ text = (char *)str2special(&str, from, FALSE);
if (text[0] != NUL && text[1] == NUL)
// single-byte character or illegal byte
text = (char *)transchar_byte((char_u)text[0]);
@@ -1782,14 +1782,16 @@
char_u *
str2special_save(
char_u *str,
- int is_lhs) // TRUE for lhs, FALSE for rhs
+ int replace_spaces, // TRUE to replace " " with "<Space>".
+ // used for the lhs of mapping and keytrans().
+ int replace_lt) // TRUE to replace "<" with "<lt>".
{
garray_T ga;
char_u *p = str;
ga_init2(&ga, 1, 40);
while (*p != NUL)
- ga_concat(&ga, str2special(&p, is_lhs));
+ ga_concat(&ga, str2special(&p, replace_spaces, replace_lt));
ga_append(&ga, NUL);
return (char_u *)ga.ga_data;
}
@@ -1804,7 +1806,9 @@
char_u *
str2special(
char_u **sp,
- int from) // TRUE for lhs of mapping
+ int replace_spaces, // TRUE to replace " " with "<Space>".
+ // used for the lhs of mapping and keytrans().
+ int replace_lt) // TRUE to replace "<" with "<lt>".
{
int c;
static char_u buf[7];
@@ -1861,8 +1865,10 @@
*sp = str + (*str == NUL ? 0 : 1);
// Make special keys and C0 control characters in <> form, also <M-Space>.
- // Use <Space> only for lhs of a mapping.
- if (special || c < ' ' || (from && c == ' '))
+ if (special
+ || c < ' '
+ || (replace_spaces && c == ' ')
+ || (replace_lt && c == '<'))
return get_special_key_name(c, modifiers);
buf[0] = c;
buf[1] = NUL;
@@ -1880,7 +1886,7 @@
*buf = NUL;
while (*sp)
{
- s = str2special(&sp, FALSE);
+ s = str2special(&sp, FALSE, FALSE);
if ((int)(STRLEN(s) + STRLEN(buf)) < len)
STRCAT(buf, s);
}