add xcdat

ajatt/packages/dictionaries.scm

@@ -345,4 +345,31 @@ the popup and sdcv for the dictionary lookup.")
     (list license:gpl3+
           license:zlib))))       
 
-goldendict-ng
+
+
+
+(define-public xcdat
+  (package
+   (name "xcdat")
+   (version "0.2.1")
+   (source
+    (origin
+     (method git-fetch)
+     (uri
+      (git-reference
+       (url "https://github.com/kampersanda/xcdat.git")
+       (commit "c1b97048259140ff5d5a22a29c1724e60112da4f")))
+     (sha256
+      (base32 "0kwfhv3kvbc4sl0bingncmpn9i210vv02lszjiqi91fa84rlxisj"))))
+   (build-system cmake-build-system)
+   (arguments
+    (list  #:cmake cmake
+           #:tests? #f ))
+ 
+
+   (synopsis "Fast compressed trie dictionary library.")
+   (description
+    "Xcdat is a C++17 header-only library of a fast compressed string dictionary based on an improved double-array trie structure.")
+   (home-page "https://kampersanda.github.io/xcdat/")
+   (license
+    (list license:expat))))