util : fallback to plain ASCII drawing if locale is not UTF-8

When printing cgroup and sysfs hierarchies, avoid using UTF-8 box drawing
characters if the locale is not UTF-8.

https://bugzilla.redhat.com/show_bug.cgi?id=871153

1 files changed, 9 insertions, 0 deletions

diff --git a/src/shared/util.h b/src/shared/util.h
index b979b0e89f..e387b1268a 100644
--- a/src/shared/util.h
+++ b/src/shared/util.h
@@ -600,3 +600,12 @@ void *xbsearch_r(const void *key, const void *base, size_t nmemb, size_t size,
                  void *arg);
 
 bool is_locale_utf8(void);
+
+typedef enum DrawSpecialChar {
+        DRAW_BOX_VERT,
+        DRAW_BOX_VERT_AND_RIGHT,
+        DRAW_BOX_UP_AND_RIGHT,
+        DRAW_TRIANGULAR_BULLET,
+        _DRAW_SPECIAL_CHAR_MAX
+} DrawSpecialChar;
+const char *draw_special_char(DrawSpecialChar ch);