New functions: list-seq, ved-seq and str-seq.

These functions convert any iterable to a list, vector or
string.

* eval.c (eval_init): Registered list-seq, vec-seq and str-seq
intrinsics.

* lib.c (list_seq, vec_seq, str_seq): New functions.

* lib.h (list_seq, vec_seq, str_seq): Declared.

* txr.1: Documented.

1 files changed, 29 insertions, 0 deletions

diff --git a/txr.1 b/txr.1
index 84b1dab7..c81b4523 100644
--- a/txr.1
+++ b/txr.1
@@ -29227,6 +29227,35 @@ then convert the resulting list to the same type as an input value
 by using
 .codn make-like .
 
+.coNP Functions @, list-seq @ vec-seq and @ str-seq
+.synb
+.mets (list-seq << iterable )
+.mets (vec-seq << iterable )
+.mets (str-seq << iterable )
+.syne
+.desc
+The
+.codn list-seq ,
+.code vec-seq
+and
+.code str-seq
+functions convert an iterable object of any type into a list, vector
+or string, respectively.
+
+The
+.code list-seq
+and
+.code vec-seq
+iterate the items of
+.meta iterable
+and accumulate these items into a new list or vector.
+
+The
+.code str-seq
+similarly iterates the items of
+.metn iterable ,
+requiring them to be a mixture of characters and strings.
+
 .coNP Functions @ length and @ len
 .synb
 .mets (length << iterable )