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comparison: dom/plugins/base/nsPluginManifestLineReader.h
dom/plugins/base/nsPluginManifestLineReader.h
- changeset 0
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| 1 /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ | |
| 2 /* This Source Code Form is subject to the terms of the Mozilla Public | |
| 3 * License, v. 2.0. If a copy of the MPL was not distributed with this | |
| 4 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ | |
| 5 | |
| 6 #ifndef nsPluginManifestLineReader_h_ | |
| 7 #define nsPluginManifestLineReader_h_ | |
| 8 | |
| 9 #include "nspr.h" | |
| 10 #include "nsDebug.h" | |
| 11 | |
| 12 #ifdef XP_WIN | |
| 13 #define PLUGIN_REGISTRY_FIELD_DELIMITER '|' | |
| 14 #else | |
| 15 #define PLUGIN_REGISTRY_FIELD_DELIMITER ':' | |
| 16 #endif | |
| 17 | |
| 18 #define PLUGIN_REGISTRY_END_OF_LINE_MARKER '$' | |
| 19 | |
| 20 class nsPluginManifestLineReader | |
| 21 { | |
| 22 public: | |
| 23 nsPluginManifestLineReader() {mBase = mCur = mNext = mLimit = 0;} | |
| 24 ~nsPluginManifestLineReader() { if (mBase) delete[] mBase; mBase=0;} | |
| 25 | |
| 26 char* Init(uint32_t flen) | |
| 27 { | |
| 28 mBase = mCur = mNext = new char[flen + 1]; | |
| 29 if (mBase) { | |
| 30 mLimit = mBase + flen; | |
| 31 *mLimit = 0; | |
| 32 } | |
| 33 mLength = 0; | |
| 34 return mBase; | |
| 35 } | |
| 36 | |
| 37 bool NextLine() | |
| 38 { | |
| 39 if (mNext >= mLimit) | |
| 40 return false; | |
| 41 | |
| 42 mCur = mNext; | |
| 43 mLength = 0; | |
| 44 | |
| 45 char *lastDelimiter = 0; | |
| 46 while(mNext < mLimit) { | |
| 47 if (IsEOL(*mNext)) { | |
| 48 if (lastDelimiter) { | |
| 49 if (lastDelimiter && *(mNext - 1) != PLUGIN_REGISTRY_END_OF_LINE_MARKER) | |
| 50 return false; | |
| 51 *lastDelimiter = '\0'; | |
| 52 } else { | |
| 53 *mNext = '\0'; | |
| 54 } | |
| 55 | |
| 56 for (++mNext; mNext < mLimit; ++mNext) { | |
| 57 if (!IsEOL(*mNext)) | |
| 58 break; | |
| 59 } | |
| 60 return true; | |
| 61 } | |
| 62 if (*mNext == PLUGIN_REGISTRY_FIELD_DELIMITER) | |
| 63 lastDelimiter = mNext; | |
| 64 ++mNext; | |
| 65 ++mLength; | |
| 66 } | |
| 67 return false; | |
| 68 } | |
| 69 | |
| 70 int ParseLine(char** chunks, int maxChunks) | |
| 71 { | |
| 72 NS_ASSERTION(mCur && maxChunks && chunks, "bad call to ParseLine"); | |
| 73 int found = 0; | |
| 74 chunks[found++] = mCur; | |
| 75 | |
| 76 if (found < maxChunks) { | |
| 77 for (char* cur = mCur; *cur; cur++) { | |
| 78 if (*cur == PLUGIN_REGISTRY_FIELD_DELIMITER) { | |
| 79 *cur = 0; | |
| 80 chunks[found++] = cur + 1; | |
| 81 if (found == maxChunks) | |
| 82 break; | |
| 83 } | |
| 84 } | |
| 85 } | |
| 86 return found; | |
| 87 } | |
| 88 | |
| 89 char* LinePtr() { return mCur; } | |
| 90 uint32_t LineLength() { return mLength; } | |
| 91 | |
| 92 bool IsEOL(char c) {return c == '\n' || c == '\r';} | |
| 93 | |
| 94 char* mBase; | |
| 95 private: | |
| 96 char* mCur; | |
| 97 uint32_t mLength; | |
| 98 char* mNext; | |
| 99 char* mLimit; | |
| 100 }; | |
| 101 | |
| 102 #endif |
