gnu: Add texlive-ccool.

* gnu/packages/tex.scm (texlive-ccool): New variable.

gnu/packages/tex.scm

@@ -2200,6 +2200,32 @@ (define-public texlive-ccfonts
 including AMS fonts (Ulrik Vieth's @code{concmath}).")
     (license license:lppl)))
 
+(define-public texlive-ccool
+  (package
+    (name "texlive-ccool")
+    (version (number->string %texlive-revision))
+    (source (texlive-origin
+             name version
+             (list "doc/latex/ccool/" "source/latex/ccool/"
+                   "tex/latex/ccool/")
+             (base32
+              "17xkwd8mrvl751rn6zvxaznac27rpvmi53rq8nwwlp6j1bdnaj94")))
+    (outputs '("out" "doc"))
+    (build-system texlive-build-system)
+    (home-page "https://ctan.org/pkg/ccool")
+    (synopsis "Key-value document command parser")
+    (description
+     "This package provides a key-value interface, @code{\\Ccool}, on top of
+@code{xparse}'s document command parser.  Global options control input
+processing and its expansion.  By default, they are set to meet likely
+requirements, depending on context: the selected language, and which of text
+and math mode is active.  These options can be overridden inline.  Polymorphic
+commands can be generated by parameterizing the keys (for instance, one
+parameter value for style, another for a property).  User input to
+@code{\\Ccool} can optionally be serialized.  This can useful for typesetting
+documents sharing the same notation.")
+    (license license:lppl1.3c)))
+
 (define-public texlive-chronosys
   (package
     (name "texlive-chronosys")