support ttc

bojand · Oct 26, 2022 · dea0a90 · dea0a90
1 parent a80c9bd
commit dea0a90
Showing 1 changed file with 7 additions and 10 deletions.
diff --git a/src/matchers/font.rs b/src/matchers/font.rs
@@ -1,19 +1,11 @@
 /// Returns whether a buffer is WOFF font data.
 pub fn is_woff(buf: &[u8]) -> bool {
-    buf.len() > 3
-        && buf[0] == 0x77
-        && buf[1] == 0x4F
-        && buf[2] == 0x46
-        && buf[3] == 0x46
+    buf.len() > 3 && buf[0] == 0x77 && buf[1] == 0x4F && buf[2] == 0x46 && buf[3] == 0x46
 }
 
 /// Returns whether a buffer is WOFF2 font data.
 pub fn is_woff2(buf: &[u8]) -> bool {
-    buf.len() > 3
-        && buf[0] == 0x77
-        && buf[1] == 0x4F
-        && buf[2] == 0x46
-        && buf[3] == 0x32
+    buf.len() > 3 && buf[0] == 0x77 && buf[1] == 0x4F && buf[2] == 0x46 && buf[3] == 0x32
 }
 
 /// Returns whether a buffer is TTF font data.
@@ -35,3 +27,8 @@ pub fn is_otf(buf: &[u8]) -> bool {
         && buf[3] == 0x4F
         && buf[4] == 0x00
 }
+
+/// Returns whether a buffer is TTC font data.
+pub fn is_ttc(buf: &[u8]) -> bool {
+    buf.len() > 3 && buf[0] == 0x74 && buf[1] == 0x74 && buf[2] == 0x63 && buf[3] == 0x66
+}