Andreas Huber | c9410c7 | 2016-07-28 12:18:40 -0700 | [diff] [blame] | 1 | #include "Formatter.h" |
| 2 | |
| 3 | #include <assert.h> |
| 4 | |
Andreas Huber | c9410c7 | 2016-07-28 12:18:40 -0700 | [diff] [blame] | 5 | namespace android { |
| 6 | |
Andreas Huber | 881227d | 2016-08-02 14:20:21 -0700 | [diff] [blame] | 7 | Formatter::Formatter(FILE *file) |
| 8 | : mFile(file == NULL ? stdout : file), |
| 9 | mIndentDepth(0), |
Andreas Huber | c9410c7 | 2016-07-28 12:18:40 -0700 | [diff] [blame] | 10 | mAtStartOfLine(true) { |
| 11 | } |
| 12 | |
Andreas Huber | 881227d | 2016-08-02 14:20:21 -0700 | [diff] [blame] | 13 | Formatter::~Formatter() { |
| 14 | if (mFile != stdout) { |
| 15 | fclose(mFile); |
| 16 | } |
| 17 | mFile = NULL; |
| 18 | } |
| 19 | |
Andreas Huber | c9410c7 | 2016-07-28 12:18:40 -0700 | [diff] [blame] | 20 | void Formatter::indent() { |
| 21 | ++mIndentDepth; |
| 22 | } |
| 23 | |
| 24 | void Formatter::unindent() { |
| 25 | assert(mIndentDepth > 0); |
| 26 | --mIndentDepth; |
| 27 | } |
| 28 | |
Zhuoyao Zhang | 5158db4 | 2016-08-10 10:25:20 -0700 | [diff] [blame] | 29 | Formatter &Formatter::operator<<(const std::string &out) { |
Andreas Huber | c9410c7 | 2016-07-28 12:18:40 -0700 | [diff] [blame] | 30 | const size_t len = out.length(); |
| 31 | size_t start = 0; |
| 32 | while (start < len) { |
| 33 | size_t pos = out.find("\n", start); |
| 34 | |
Zhuoyao Zhang | 5158db4 | 2016-08-10 10:25:20 -0700 | [diff] [blame] | 35 | if (pos == std::string::npos) { |
Andreas Huber | c9410c7 | 2016-07-28 12:18:40 -0700 | [diff] [blame] | 36 | if (mAtStartOfLine) { |
Andreas Huber | 881227d | 2016-08-02 14:20:21 -0700 | [diff] [blame] | 37 | fprintf(mFile, "%*s", (int)(2 * mIndentDepth), ""); |
Andreas Huber | c9410c7 | 2016-07-28 12:18:40 -0700 | [diff] [blame] | 38 | mAtStartOfLine = false; |
| 39 | } |
| 40 | |
Andreas Huber | 0e00de4 | 2016-08-03 09:56:02 -0700 | [diff] [blame] | 41 | output(out.substr(start)); |
Andreas Huber | c9410c7 | 2016-07-28 12:18:40 -0700 | [diff] [blame] | 42 | break; |
| 43 | } |
| 44 | |
| 45 | if (pos == start) { |
Andreas Huber | 881227d | 2016-08-02 14:20:21 -0700 | [diff] [blame] | 46 | fprintf(mFile, "\n"); |
Andreas Huber | c9410c7 | 2016-07-28 12:18:40 -0700 | [diff] [blame] | 47 | mAtStartOfLine = true; |
| 48 | } else if (pos > start) { |
| 49 | if (mAtStartOfLine) { |
Andreas Huber | 881227d | 2016-08-02 14:20:21 -0700 | [diff] [blame] | 50 | fprintf(mFile, "%*s", (int)(2 * mIndentDepth), ""); |
Andreas Huber | c9410c7 | 2016-07-28 12:18:40 -0700 | [diff] [blame] | 51 | } |
| 52 | |
Andreas Huber | 0e00de4 | 2016-08-03 09:56:02 -0700 | [diff] [blame] | 53 | output(out.substr(start, pos - start + 1)); |
Andreas Huber | c9410c7 | 2016-07-28 12:18:40 -0700 | [diff] [blame] | 54 | |
| 55 | mAtStartOfLine = true; |
| 56 | } |
| 57 | |
| 58 | start = pos + 1; |
| 59 | } |
| 60 | |
| 61 | return *this; |
| 62 | } |
| 63 | |
| 64 | Formatter &Formatter::operator<<(size_t n) { |
| 65 | return (*this) << std::to_string(n); |
| 66 | } |
| 67 | |
Andreas Huber | 0e00de4 | 2016-08-03 09:56:02 -0700 | [diff] [blame] | 68 | void Formatter::setNamespace(const std::string &space) { |
| 69 | mSpace = space; |
Andreas Huber | 0e00de4 | 2016-08-03 09:56:02 -0700 | [diff] [blame] | 70 | } |
| 71 | |
| 72 | void Formatter::output(const std::string &text) const { |
| 73 | const size_t spaceLength = mSpace.size(); |
| 74 | if (spaceLength > 0) { |
| 75 | // Remove all occurences of "mSpace" and output the filtered result. |
| 76 | size_t matchPos = text.find(mSpace); |
| 77 | if (matchPos != std::string::npos) { |
| 78 | std::string newText = text.substr(0, matchPos); |
| 79 | size_t startPos = matchPos + spaceLength; |
| 80 | while ((matchPos = text.find(mSpace, startPos)) |
| 81 | != std::string::npos) { |
| 82 | newText.append(text.substr(startPos, matchPos - startPos)); |
| 83 | startPos = matchPos + spaceLength; |
| 84 | } |
| 85 | newText.append(text.substr(startPos)); |
| 86 | fprintf(mFile, "%s", newText.c_str()); |
| 87 | return; |
| 88 | } |
| 89 | } |
| 90 | |
| 91 | fprintf(mFile, "%s", text.c_str()); |
| 92 | } |
| 93 | |
Andreas Huber | c9410c7 | 2016-07-28 12:18:40 -0700 | [diff] [blame] | 94 | } // namespace android |