New function: grade.

Inspired by APL.

* eval.c (eval_init): Register grade intrinsic.

* lib.c (grade): New function.

* lib.h (grade): Declared.

* txr.1: Documented.

1 files changed, 1 insertions, 0 deletions

diff --git a/eval.c b/eval.c
index 3f904e21..deed3ede 100644
--- a/eval.c
+++ b/eval.c
@@ -6003,6 +6003,7 @@ void eval_init(void)
   reg_fun(intern(lit("sort-group"), user_package), func_n3o(sort_group, 1));
   reg_fun(intern(lit("unique"), user_package), func_n2ov(unique, 1));
   reg_fun(intern(lit("uniq"), user_package), func_n1(uniq));
+  reg_fun(intern(lit("grade"), user_package), func_n3o(grade, 1));
 
   reg_var(intern(lit("*param-macro*"), user_package), pm_table);