1 /*
2  * Copyright (C) 2017 The Android Open Source Project
3  *
4  * Licensed under the Apache License, Version 2.0 (the "License");
5  * you may not use this file except in compliance with the License.
6  * You may obtain a copy of the License at
7  *
8  *      http://www.apache.org/licenses/LICENSE-2.0
9  *
10  * Unless required by applicable law or agreed to in writing, software
11  * distributed under the License is distributed on an "AS IS" BASIS,
12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13  * See the License for the specific language governing permissions and
14  * limitations under the License.
15  */
16 
17 #ifndef AAPT_TEXT_PRINTER_H
18 #define AAPT_TEXT_PRINTER_H
19 
20 #include "android-base/macros.h"
21 #include "androidfw/StringPiece.h"
22 
23 #include "io/Io.h"
24 
25 namespace aapt {
26 namespace text {
27 
28 // An indenting Printer that helps write formatted text to the OutputStream.
29 class Printer {
30  public:
Printer(::aapt::io::OutputStream * out)31   explicit Printer(::aapt::io::OutputStream* out) : out_(out) {
32   }
33 
34   Printer& Print(const ::android::StringPiece& str);
35   Printer& Println(const ::android::StringPiece& str);
36   Printer& Println();
37 
38   void Indent();
39   void Undent();
40 
41  private:
42   DISALLOW_COPY_AND_ASSIGN(Printer);
43 
44   ::aapt::io::OutputStream* out_;
45   int indent_level_ = 0;
46   bool needs_indent_ = false;
47   bool error_ = false;
48 };
49 
50 }  // namespace text
51 }  // namespace aapt
52 
53 #endif  // AAPT_TEXT_PRINTER_H
54