initial add - go fmt on grpc
Change-Id: Ib0afadd2fe5571d1456a091f94f5644458f7d3f4
diff --git a/vendor/golang.org/x/text/unicode/norm/readwriter.go b/vendor/golang.org/x/text/unicode/norm/readwriter.go
new file mode 100644
index 0000000..b38096f
--- /dev/null
+++ b/vendor/golang.org/x/text/unicode/norm/readwriter.go
@@ -0,0 +1,125 @@
+// Copyright 2011 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 norm
+
+import "io"
+
+type normWriter struct {
+ rb reorderBuffer
+ w io.Writer
+ buf []byte
+}
+
+// Write implements the standard write interface. If the last characters are
+// not at a normalization boundary, the bytes will be buffered for the next
+// write. The remaining bytes will be written on close.
+func (w *normWriter) Write(data []byte) (n int, err error) {
+ // Process data in pieces to keep w.buf size bounded.
+ const chunk = 4000
+
+ for len(data) > 0 {
+ // Normalize into w.buf.
+ m := len(data)
+ if m > chunk {
+ m = chunk
+ }
+ w.rb.src = inputBytes(data[:m])
+ w.rb.nsrc = m
+ w.buf = doAppend(&w.rb, w.buf, 0)
+ data = data[m:]
+ n += m
+
+ // Write out complete prefix, save remainder.
+ // Note that lastBoundary looks back at most 31 runes.
+ i := lastBoundary(&w.rb.f, w.buf)
+ if i == -1 {
+ i = 0
+ }
+ if i > 0 {
+ if _, err = w.w.Write(w.buf[:i]); err != nil {
+ break
+ }
+ bn := copy(w.buf, w.buf[i:])
+ w.buf = w.buf[:bn]
+ }
+ }
+ return n, err
+}
+
+// Close forces data that remains in the buffer to be written.
+func (w *normWriter) Close() error {
+ if len(w.buf) > 0 {
+ _, err := w.w.Write(w.buf)
+ if err != nil {
+ return err
+ }
+ }
+ return nil
+}
+
+// Writer returns a new writer that implements Write(b)
+// by writing f(b) to w. The returned writer may use an
+// internal buffer to maintain state across Write calls.
+// Calling its Close method writes any buffered data to w.
+func (f Form) Writer(w io.Writer) io.WriteCloser {
+ wr := &normWriter{rb: reorderBuffer{}, w: w}
+ wr.rb.init(f, nil)
+ return wr
+}
+
+type normReader struct {
+ rb reorderBuffer
+ r io.Reader
+ inbuf []byte
+ outbuf []byte
+ bufStart int
+ lastBoundary int
+ err error
+}
+
+// Read implements the standard read interface.
+func (r *normReader) Read(p []byte) (int, error) {
+ for {
+ if r.lastBoundary-r.bufStart > 0 {
+ n := copy(p, r.outbuf[r.bufStart:r.lastBoundary])
+ r.bufStart += n
+ if r.lastBoundary-r.bufStart > 0 {
+ return n, nil
+ }
+ return n, r.err
+ }
+ if r.err != nil {
+ return 0, r.err
+ }
+ outn := copy(r.outbuf, r.outbuf[r.lastBoundary:])
+ r.outbuf = r.outbuf[0:outn]
+ r.bufStart = 0
+
+ n, err := r.r.Read(r.inbuf)
+ r.rb.src = inputBytes(r.inbuf[0:n])
+ r.rb.nsrc, r.err = n, err
+ if n > 0 {
+ r.outbuf = doAppend(&r.rb, r.outbuf, 0)
+ }
+ if err == io.EOF {
+ r.lastBoundary = len(r.outbuf)
+ } else {
+ r.lastBoundary = lastBoundary(&r.rb.f, r.outbuf)
+ if r.lastBoundary == -1 {
+ r.lastBoundary = 0
+ }
+ }
+ }
+}
+
+// Reader returns a new reader that implements Read
+// by reading data from r and returning f(data).
+func (f Form) Reader(r io.Reader) io.Reader {
+ const chunk = 4000
+ buf := make([]byte, chunk)
+ rr := &normReader{rb: reorderBuffer{}, r: r, inbuf: buf}
+ rr.rb.init(f, buf)
+ return rr
+}