git-branch -D: make it work even when on a yet-to-be-born branch

diff --git a/config.c b/config.c
index e8f0caf7cf674ff44b23e0182420988e9672cc69..3cae3901aa9b50e8d04a8ce2633a1a1ef8ed0f6c 100644 (file)
--- a/config.c
+++ b/config.c
@@ -103,6 +103,11 @@ static char *parse_value(void)
        }
 }
 
+static inline int iskeychar(int c)
+{
+       return isalnum(c) || c == '-';
+}
+
 static int get_value(config_fn_t fn, char *name, unsigned int len)
 {
        int c;
@@ -113,7 +118,7 @@ static int get_value(config_fn_t fn, char *name, unsigned int len)
                c = get_next_char();
                if (c == EOF)
                        break;
-               if (!isalnum(c))
+               if (!iskeychar(c))
                        break;
                name[len++] = tolower(c);
                if (len >= MAXNAME)
@@ -181,7 +186,7 @@ static int get_base_var(char *name)
                        return baselen;
                if (isspace(c))
                        return get_extended_base_var(name, baselen, c);
-               if (!isalnum(c) && c != '.')
+               if (!iskeychar(c) && c != '.')
                        return -1;
                if (baselen > MAXNAME / 2)
                        return -1;
@@ -573,7 +578,7 @@ int git_config_set_multivar(const char* key, const char* value,
                        dot = 1;
                /* Leave the extended basename untouched.. */
                if (!dot || i > store.baselen) {
-                       if (!isalnum(c) || (i == store.baselen+1 && !isalpha(c))) {
+                       if (!iskeychar(c) || (i == store.baselen+1 && !isalpha(c))) {
                                fprintf(stderr, "invalid key: %s\n", key);
                                free(store.key);
                                ret = 1;