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patch 8.2.3743: ":sign" can add a highlight group without a name

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Problem:    ":sign" can add a highlight group without a name.
Solution:   Give an error if the group name is missing. (closes #9280)
This commit is contained in:
Bram Moolenaar
2021-12-05 13:02:50 +00:00
parent f589fd3e10
commit 5e18ccc60b
4 changed files with 34 additions and 0 deletions
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26
src/sign.c
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@@ -1295,6 +1295,17 @@ sign_jump(int sign_id, char_u *sign_group, buf_T *buf)
return lnum;
}
static int
check_empty_group(size_t len, char *name)
{
if (len == 0)
{
semsg(_(e_group_name_missing_for_str), name);
return FAIL;
}
return OK;
}
/*
* ":sign define {name} ..." command
*/
@@ -1330,16 +1341,31 @@ sign_define_cmd(char_u *sign_name, char_u *cmdline)
else if (STRNCMP(arg, "linehl=", 7) == 0)
{
arg += 7;
if (check_empty_group(p - arg, "linehl") == FAIL)
{
failed = TRUE;
break;
}
linehl = vim_strnsave(arg, p - arg);
}
else if (STRNCMP(arg, "texthl=", 7) == 0)
{
arg += 7;
if (check_empty_group(p - arg, "texthl") == FAIL)
{
failed = TRUE;
break;
}
texthl = vim_strnsave(arg, p - arg);
}
else if (STRNCMP(arg, "culhl=", 6) == 0)
{
arg += 6;
if (check_empty_group(p - arg, "culhl") == FAIL)
{
failed = TRUE;
break;
}
culhl = vim_strnsave(arg, p - arg);
}
else