Merge pull request #105 from grumlimited/par2

Par2 - added support

Author: bojand

README.md

@@ -179,6 +179,7 @@ assert_eq!(kind.extension(), "foo");
 - **lz4** - `application/x-lz4`
 - **msi** - `application/x-ole-storage`
 - **cpio** - `application/x-cpio`
+- **par2** - `application/x-par2`
 
 #### Book
 

src/map.rs

@@ -444,6 +444,12 @@ matcher_map!(
         "tar",
         matchers::archive::is_tar
     ),
+    (
+        MatcherType::Archive,
+        "application/x-par2",
+        "par2",
+        matchers::archive::is_par2
+    ),
     (
         MatcherType::Archive,
         "application/vnd.rar",

src/matchers/archive.rs

@@ -35,6 +35,18 @@ pub fn is_tar(buf: &[u8]) -> bool {
         && buf[261] == 0x72
 }
 
+pub fn is_par2(buf: &[u8]) -> bool {
+    buf.len() > 8
+        && buf[0] == 0x50
+        && buf[1] == 0x41
+        && buf[2] == 0x52
+        && buf[3] == 0x32
+        && buf[4] == 0x00
+        && buf[5] == 0x50
+        && buf[6] == 0x4B
+        && buf[7] == 0x54
+}
+
 /// Returns whether a buffer is a RAR archive.
 pub fn is_rar(buf: &[u8]) -> bool {
     buf.len() > 6

testdata/sample.par2

@@ -25,3 +25,4 @@ test_format!(
     zst_skip,
     "sample.skippable.zst"
 );
+test_format!(Archive, "application/x-par2", "par2", par2, "sample.par2");