1 files changed, 4 insertions, 0 deletions
diff --git a/st.h b/st.h
index 46c33f6..c516cee 100644
--- a/st.h
+++ b/st.h
@@ -20,6 +20,10 @@
 #define TRUECOLOR(r,g,b)	(1 << 24 | (r) << 16 | (g) << 8 | (b))
 #define IS_TRUECOL(x)		(1 << 24 & (x))
 
+#define HEX_TO_INT(c)		((c) >= '0' && (c) <= '9' ? (c) - '0' : \
+				(c) >= 'a' && (c) <= 'f' ? (c) - 'a' + 10 : \
+				(c) >= 'A' && (c) <= 'F' ? (c) - 'A' + 10 : -1)
+
 enum glyph_attribute {
 	ATTR_NULL       = 0,
 	ATTR_SET        = 1 << 0,