Make the interface for libbio expose errors.

    Filling in all the error conditions correctly is only lightly
    tested, but it seems to work.

1 files changed, 5 insertions, 2 deletions

diff --git a/lib/regex/redump.myr b/lib/regex/redump.myr
index 920b257..5c1e7bc 100644
--- a/lib/regex/redump.myr
+++ b/lib/regex/redump.myr
@@ -57,10 +57,13 @@ const runall = {re, files
 const dump = {re, fd 
 	while true
 		match bio.readln(fd)
-		| `std.Some ln:
+		| `bio.Ok ln:
 			show(re, ln, regex.exec(re, ln))
 			std.slfree(ln)
-		| `std.None:
+		| `bio.Eof:
+			break
+		| `bio.Err:
+			std.put("error reading from input")
 			break
 		;;
 	;;