tree-wide: add global ascii_isdigit() + ascii_isalpha()

We now have a local implementation in string-util-fundamental.c, but
it's useful at a lot of other places, hence let's give it a more
expressive name and share it across the tree.

Follow-up for: 8d9156660d6958c8d63b1d44692968f1b5d33920

1 files changed, 2 insertions, 3 deletions

diff --git a/src/udev/udev-builtin-path_id.c b/src/udev/udev-builtin-path_id.c
index ae92e45205..d33eede984 100644
--- a/src/udev/udev-builtin-path_id.c
+++ b/src/udev/udev-builtin-path_id.c
@@ -695,9 +695,8 @@ static int builtin_path_id(sd_device *dev, sd_netlink **rtnl, int argc, char *ar
 
                 /* compose valid udev tag name */
                 for (const char *p = path; *p; p++) {
-                        if ((*p >= '0' && *p <= '9') ||
-                            (*p >= 'A' && *p <= 'Z') ||
-                            (*p >= 'a' && *p <= 'z') ||
+                        if (ascii_isdigit(*p) ||
+                            ascii_isalpha(*p) ||
                             *p == '-') {
                                 tag[i++] = *p;
                                 continue;