Imported Upstream version 1.4upstream/1.4

1 files changed, 15 insertions, 0 deletions

diff --git a/src/cmd/yacc/testdata/expr/main.go b/src/cmd/yacc/testdata/expr/main.go
new file mode 100644
index 000000000..8d5b6911f
--- /dev/null
+++ b/src/cmd/yacc/testdata/expr/main.go
@@ -0,0 +1,15 @@
+// Copyright 2014 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.
+
+// This file holds the go generate command to run yacc on the grammar in expr.y.
+// To build expr:
+//	% go generate
+//	% go build
+
+//go:generate -command yacc go tool yacc
+//go:generate yacc -o expr.go -p "expr" expr.y
+
+// Expr is a simple expression evaluator that serves as a working example of
+// how to use Go's yacc implemenation.
+package main