New: spln and tokn functions.

Instead of trying to work the new count parameter into the spl and
tok functions, it's better to make new ones.

* eval.c (eval_init): spln and tokn intrinsics registered.

* lib.[ch] (spln, tokn): New functions.

* tests/015/split.tl: New test cases.

* txr.1: Documented.

* stdlib/doc-syms.tl: Updated.

1 files changed, 2 insertions, 0 deletions

diff --git a/lib.h b/lib.h
index 585a2c05..59b20645 100644
--- a/lib.h
+++ b/lib.h
@@ -927,10 +927,12 @@ val fmt_join(struct args *args);
 val split_str(val str, val sep);
 val split_str_keep(val str, val sep, val keep_sep_opt, val count_opt);
 val spl(val sep, val arg1, val arg2);
+val spln(val count, val sep, val arg1, val arg2);
 val split_str_set(val str, val set);
 val sspl(val set, val str);
 val tok_str(val str, val tok_regex, val keep_sep_opt, val count_opt);
 val tok(val tok_regex, val arg1, val arg2);
+val tokn(val count, val tok_regex, val arg1, val arg2);
 val tok_where(val str, val tok_regex);
 val list_str(val str);
 val trim_str(val str);