New string compression/decompression functions.

* buf.c (str_compress, str_decompress): New functions.
(buf_init): str-compress, str-decompress intrinsics
registered.

* lib.[ch] (string_utf8_from_buf): New function.

* tests/012/buf.tl: New tests.

* txr.1: Documented.

1 files changed, 1 insertions, 0 deletions

diff --git a/lib.h b/lib.h
index 2e416dcd..70753bb2 100644
--- a/lib.h
+++ b/lib.h
@@ -1087,6 +1087,7 @@ val bitset(val n);
 val string_own(wchar_t *str);
 val string(const wchar_t *str);
 val string_utf8(const char *str);
+val string_utf8_from_buf(const char *str, size_t len);
 val string_8bit(const unsigned char *str);
 val string_8bit_size(const unsigned char *str, size_t sz);
 val mkstring(val len, val ch);