beginnings of regular expression library.

will move elsewhere when more complete.
parses, does not execute.
no character classes yet.

R=rsc
DELTA=522  (522 added, 0 deleted, 0 changed)
OCL=16863
CL=16874

1 files changed, 22 insertions, 0 deletions

diff --git a/usr/r/regexp/main.go b/usr/r/regexp/main.go
new file mode 100644
index 000000000..d723d87a9
--- /dev/null
+++ b/usr/r/regexp/main.go
@@ -0,0 +1,22 @@
+// Copyright 2009 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+package main
+
+import (
+	"os";
+	"regexp";
+)
+
+func main() {
+	str := "a*b*c*";
+	if sys.argc() > 1 {
+		str = sys.argv(1);
+	}
+	re, err := regexp.Compile(str);
+	if err != nil {
+		print("error: ", err.String(), "\n");
+		sys.exit(1);
+	}
+}