dom/plugins/base/nsPluginManifestLineReader.h@b8a032363ba2 (annotated)
dom/plugins/base/nsPluginManifestLineReader.h
Thu, 22 Jan 2015 13:21:57 +0100
- author
- Michael Schloh von Bennewitz <michael@schloh.com>
- date
- Thu, 22 Jan 2015 13:21:57 +0100
- branch
- TOR_BUG_9701
- changeset 15
- b8a032363ba2
- permissions
- -rw-r--r--
Incorporate requested changes from Mozilla in review:
https://bugzilla.mozilla.org/show_bug.cgi?id=1123480#c6
| michael@0 | 1 | /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ |
| michael@0 | 2 | /* This Source Code Form is subject to the terms of the Mozilla Public |
| michael@0 | 3 | * License, v. 2.0. If a copy of the MPL was not distributed with this |
| michael@0 | 4 | * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ |
| michael@0 | 5 | |
| michael@0 | 6 | #ifndef nsPluginManifestLineReader_h_ |
| michael@0 | 7 | #define nsPluginManifestLineReader_h_ |
| michael@0 | 8 | |
| michael@0 | 9 | #include "nspr.h" |
| michael@0 | 10 | #include "nsDebug.h" |
| michael@0 | 11 | |
| michael@0 | 12 | #ifdef XP_WIN |
| michael@0 | 13 | #define PLUGIN_REGISTRY_FIELD_DELIMITER '|' |
| michael@0 | 14 | #else |
| michael@0 | 15 | #define PLUGIN_REGISTRY_FIELD_DELIMITER ':' |
| michael@0 | 16 | #endif |
| michael@0 | 17 | |
| michael@0 | 18 | #define PLUGIN_REGISTRY_END_OF_LINE_MARKER '$' |
| michael@0 | 19 | |
| michael@0 | 20 | class nsPluginManifestLineReader |
| michael@0 | 21 | { |
| michael@0 | 22 | public: |
| michael@0 | 23 | nsPluginManifestLineReader() {mBase = mCur = mNext = mLimit = 0;} |
| michael@0 | 24 | ~nsPluginManifestLineReader() { if (mBase) delete[] mBase; mBase=0;} |
| michael@0 | 25 | |
| michael@0 | 26 | char* Init(uint32_t flen) |
| michael@0 | 27 | { |
| michael@0 | 28 | mBase = mCur = mNext = new char[flen + 1]; |
| michael@0 | 29 | if (mBase) { |
| michael@0 | 30 | mLimit = mBase + flen; |
| michael@0 | 31 | *mLimit = 0; |
| michael@0 | 32 | } |
| michael@0 | 33 | mLength = 0; |
| michael@0 | 34 | return mBase; |
| michael@0 | 35 | } |
| michael@0 | 36 | |
| michael@0 | 37 | bool NextLine() |
| michael@0 | 38 | { |
| michael@0 | 39 | if (mNext >= mLimit) |
| michael@0 | 40 | return false; |
| michael@0 | 41 | |
| michael@0 | 42 | mCur = mNext; |
| michael@0 | 43 | mLength = 0; |
| michael@0 | 44 | |
| michael@0 | 45 | char *lastDelimiter = 0; |
| michael@0 | 46 | while(mNext < mLimit) { |
| michael@0 | 47 | if (IsEOL(*mNext)) { |
| michael@0 | 48 | if (lastDelimiter) { |
| michael@0 | 49 | if (lastDelimiter && *(mNext - 1) != PLUGIN_REGISTRY_END_OF_LINE_MARKER) |
| michael@0 | 50 | return false; |
| michael@0 | 51 | *lastDelimiter = '\0'; |
| michael@0 | 52 | } else { |
| michael@0 | 53 | *mNext = '\0'; |
| michael@0 | 54 | } |
| michael@0 | 55 | |
| michael@0 | 56 | for (++mNext; mNext < mLimit; ++mNext) { |
| michael@0 | 57 | if (!IsEOL(*mNext)) |
| michael@0 | 58 | break; |
| michael@0 | 59 | } |
| michael@0 | 60 | return true; |
| michael@0 | 61 | } |
| michael@0 | 62 | if (*mNext == PLUGIN_REGISTRY_FIELD_DELIMITER) |
| michael@0 | 63 | lastDelimiter = mNext; |
| michael@0 | 64 | ++mNext; |
| michael@0 | 65 | ++mLength; |
| michael@0 | 66 | } |
| michael@0 | 67 | return false; |
| michael@0 | 68 | } |
| michael@0 | 69 | |
| michael@0 | 70 | int ParseLine(char** chunks, int maxChunks) |
| michael@0 | 71 | { |
| michael@0 | 72 | NS_ASSERTION(mCur && maxChunks && chunks, "bad call to ParseLine"); |
| michael@0 | 73 | int found = 0; |
| michael@0 | 74 | chunks[found++] = mCur; |
| michael@0 | 75 | |
| michael@0 | 76 | if (found < maxChunks) { |
| michael@0 | 77 | for (char* cur = mCur; *cur; cur++) { |
| michael@0 | 78 | if (*cur == PLUGIN_REGISTRY_FIELD_DELIMITER) { |
| michael@0 | 79 | *cur = 0; |
| michael@0 | 80 | chunks[found++] = cur + 1; |
| michael@0 | 81 | if (found == maxChunks) |
| michael@0 | 82 | break; |
| michael@0 | 83 | } |
| michael@0 | 84 | } |
| michael@0 | 85 | } |
| michael@0 | 86 | return found; |
| michael@0 | 87 | } |
| michael@0 | 88 | |
| michael@0 | 89 | char* LinePtr() { return mCur; } |
| michael@0 | 90 | uint32_t LineLength() { return mLength; } |
| michael@0 | 91 | |
| michael@0 | 92 | bool IsEOL(char c) {return c == '\n' || c == '\r';} |
| michael@0 | 93 | |
| michael@0 | 94 | char* mBase; |
| michael@0 | 95 | private: |
| michael@0 | 96 | char* mCur; |
| michael@0 | 97 | uint32_t mLength; |
| michael@0 | 98 | char* mNext; |
| michael@0 | 99 | char* mLimit; |
| michael@0 | 100 | }; |
| michael@0 | 101 | |
| michael@0 | 102 | #endif |
