Checking in vendor folder for ease of using go get.

vendor/golang.org/x/text/internal/catmsg/varint.go

@@ -0,0 +1,62 @@
+// Copyright 2017 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 catmsg
+
+// This file implements varint encoding analogous to the one in encoding/binary.
+// We need a string version of this function, so we add that here and then add
+// the rest for consistency.
+
+import "errors"
+
+var (
+	errIllegalVarint  = errors.New("catmsg: illegal varint")
+	errVarintTooLarge = errors.New("catmsg: varint too large for uint64")
+)
+
+const maxVarintBytes = 10 // maximum length of a varint
+
+// encodeUint encodes x as a variable-sized integer into buf and returns the
+// number of bytes written. buf must be at least maxVarintBytes long
+func encodeUint(buf []byte, x uint64) (n int) {
+	for ; x > 127; n++ {
+		buf[n] = 0x80 | uint8(x&0x7F)
+		x >>= 7
+	}
+	buf[n] = uint8(x)
+	n++
+	return n
+}
+
+func decodeUintString(s string) (x uint64, size int, err error) {
+	i := 0
+	for shift := uint(0); shift < 64; shift += 7 {
+		if i >= len(s) {
+			return 0, i, errIllegalVarint
+		}
+		b := uint64(s[i])
+		i++
+		x |= (b & 0x7F) << shift
+		if b&0x80 == 0 {
+			return x, i, nil
+		}
+	}
+	return 0, i, errVarintTooLarge
+}
+
+func decodeUint(b []byte) (x uint64, size int, err error) {
+	i := 0
+	for shift := uint(0); shift < 64; shift += 7 {
+		if i >= len(b) {
+			return 0, i, errIllegalVarint
+		}
+		c := uint64(b[i])
+		i++
+		x |= (c & 0x7F) << shift
+		if c&0x80 == 0 {
+			return x, i, nil
+		}
+	}
+	return 0, i, errVarintTooLarge
+}