Vendor dependencies with dep

vendor/github.com/kurin/blazer/base/strings.go

@@ -0,0 +1,81 @@
+// Copyright 2017, Google
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package base
+
+import (
+	"bytes"
+	"errors"
+	"fmt"
+)
+
+func noEscape(c byte) bool {
+	switch c {
+	case '.', '_', '-', '/', '~', '!', '$', '\'', '(', ')', '*', ';', '=', ':', '@':
+		return true
+	}
+	return false
+}
+
+func escape(s string) string {
+	// cribbed from url.go, kinda
+	b := &bytes.Buffer{}
+	for i := 0; i < len(s); i++ {
+		switch c := s[i]; {
+		case c == '/':
+			b.WriteByte(c)
+		case 'a' <= c && c <= 'z' || 'A' <= c && c <= 'Z' || '0' <= c && c <= '9':
+			b.WriteByte(c)
+		case noEscape(c):
+			b.WriteByte(c)
+		default:
+			fmt.Fprintf(b, "%%%X", c)
+		}
+	}
+	return b.String()
+}
+
+func unescape(s string) (string, error) {
+	b := &bytes.Buffer{}
+	for i := 0; i < len(s); i++ {
+		c := s[i]
+		switch c {
+		case '/':
+			b.WriteString("/")
+		case '+':
+			b.WriteString(" ")
+		case '%':
+			if len(s)-i < 3 {
+				return "", errors.New("unescape: bad encoding")
+			}
+			b.WriteByte(unhex(s[i+1])<<4 | unhex(s[i+2]))
+			i += 2
+		default:
+			b.WriteByte(c)
+		}
+	}
+	return b.String(), nil
+}
+
+func unhex(c byte) byte {
+	switch {
+	case '0' <= c && c <= '9':
+		return c - '0'
+	case 'a' <= c && c <= 'f':
+		return c - 'a' + 10
+	case 'A' <= c && c <= 'F':
+		return c - 'A' + 10
+	}
+	return 0
+}