Checking in vendor folder for ease of using go get.

vendor/golang.org/x/text/currency/gen_common.go

@@ -0,0 +1,71 @@
+// Copyright 2015 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.
+
+// +build ignore
+
+package main
+
+import (
+	"time"
+
+	"golang.org/x/text/language"
+)
+
+// This file contains code common to gen.go and the package code.
+
+const (
+	cashShift = 3
+	roundMask = 0x7
+
+	nonTenderBit = 0x8000
+)
+
+// currencyInfo contains information about a currency.
+// bits 0..2: index into roundings for standard rounding
+// bits 3..5: index into roundings for cash rounding
+type currencyInfo byte
+
+// roundingType defines the scale (number of fractional decimals) and increments
+// in terms of units of size 10^-scale. For example, for scale == 2 and
+// increment == 1, the currency is rounded to units of 0.01.
+type roundingType struct {
+	scale, increment uint8
+}
+
+// roundings contains rounding data for currencies. This struct is
+// created by hand as it is very unlikely to change much.
+var roundings = [...]roundingType{
+	{2, 1}, // default
+	{0, 1},
+	{1, 1},
+	{3, 1},
+	{4, 1},
+	{2, 5}, // cash rounding alternative
+	{2, 50},
+}
+
+// regionToCode returns a 16-bit region code. Only two-letter codes are
+// supported. (Three-letter codes are not needed.)
+func regionToCode(r language.Region) uint16 {
+	if s := r.String(); len(s) == 2 {
+		return uint16(s[0])<<8 | uint16(s[1])
+	}
+	return 0
+}
+
+func toDate(t time.Time) uint32 {
+	y := t.Year()
+	if y == 1 {
+		return 0
+	}
+	date := uint32(y) << 4
+	date |= uint32(t.Month())
+	date <<= 5
+	date |= uint32(t.Day())
+	return date
+}
+
+func fromDate(date uint32) time.Time {
+	return time.Date(int(date>>9), time.Month((date>>5)&0xf), int(date&0x1f), 0, 0, 0, 0, time.UTC)
+}