The Tor Browser / file comparison
comparison: parser/html/javasrc/UTF16Buffer.java
parser/html/javasrc/UTF16Buffer.java
- branch
- TOR_BUG_9701
- changeset 14
- 925c144e1f1f
equal
deleted
inserted
replaced
| -1:000000000000 | 0:20d8d6ba4334 |
|---|---|
| 1 /* | |
| 2 * Copyright (c) 2008-2010 Mozilla Foundation | |
| 3 * | |
| 4 * Permission is hereby granted, free of charge, to any person obtaining a | |
| 5 * copy of this software and associated documentation files (the "Software"), | |
| 6 * to deal in the Software without restriction, including without limitation | |
| 7 * the rights to use, copy, modify, merge, publish, distribute, sublicense, | |
| 8 * and/or sell copies of the Software, and to permit persons to whom the | |
| 9 * Software is furnished to do so, subject to the following conditions: | |
| 10 * | |
| 11 * The above copyright notice and this permission notice shall be included in | |
| 12 * all copies or substantial portions of the Software. | |
| 13 * | |
| 14 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR | |
| 15 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, | |
| 16 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL | |
| 17 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER | |
| 18 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING | |
| 19 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER | |
| 20 * DEALINGS IN THE SOFTWARE. | |
| 21 */ | |
| 22 | |
| 23 package nu.validator.htmlparser.impl; | |
| 24 | |
| 25 import nu.validator.htmlparser.annotation.NoLength; | |
| 26 | |
| 27 /** | |
| 28 * An UTF-16 buffer that knows the start and end indeces of its unconsumed | |
| 29 * content. | |
| 30 * | |
| 31 * @version $Id$ | |
| 32 * @author hsivonen | |
| 33 */ | |
| 34 public final class UTF16Buffer { | |
| 35 | |
| 36 /** | |
| 37 * The backing store of the buffer. May be larger than the logical content | |
| 38 * of this <code>UTF16Buffer</code>. | |
| 39 */ | |
| 40 private final @NoLength char[] buffer; | |
| 41 | |
| 42 /** | |
| 43 * The index of the first unconsumed character in the backing buffer. | |
| 44 */ | |
| 45 private int start; | |
| 46 | |
| 47 /** | |
| 48 * The index of the slot immediately after the last character in the backing | |
| 49 * buffer that is part of the logical content of this | |
| 50 * <code>UTF16Buffer</code>. | |
| 51 */ | |
| 52 private int end; | |
| 53 | |
| 54 //[NOCPP[ | |
| 55 | |
| 56 /** | |
| 57 * Constructor for wrapping an existing UTF-16 code unit array. | |
| 58 * | |
| 59 * @param buffer | |
| 60 * the backing buffer | |
| 61 * @param start | |
| 62 * the index of the first character to consume | |
| 63 * @param end | |
| 64 * the index immediately after the last character to consume | |
| 65 */ | |
| 66 public UTF16Buffer(@NoLength char[] buffer, int start, int end) { | |
| 67 this.buffer = buffer; | |
| 68 this.start = start; | |
| 69 this.end = end; | |
| 70 } | |
| 71 | |
| 72 // ]NOCPP] | |
| 73 | |
| 74 /** | |
| 75 * Returns the start index. | |
| 76 * | |
| 77 * @return the start index | |
| 78 */ | |
| 79 public int getStart() { | |
| 80 return start; | |
| 81 } | |
| 82 | |
| 83 /** | |
| 84 * Sets the start index. | |
| 85 * | |
| 86 * @param start | |
| 87 * the start index | |
| 88 */ | |
| 89 public void setStart(int start) { | |
| 90 this.start = start; | |
| 91 } | |
| 92 | |
| 93 /** | |
| 94 * Returns the backing buffer. | |
| 95 * | |
| 96 * @return the backing buffer | |
| 97 */ | |
| 98 public @NoLength char[] getBuffer() { | |
| 99 return buffer; | |
| 100 } | |
| 101 | |
| 102 /** | |
| 103 * Returns the end index. | |
| 104 * | |
| 105 * @return the end index | |
| 106 */ | |
| 107 public int getEnd() { | |
| 108 return end; | |
| 109 } | |
| 110 | |
| 111 /** | |
| 112 * Checks if the buffer has data left. | |
| 113 * | |
| 114 * @return <code>true</code> if there's data left | |
| 115 */ | |
| 116 public boolean hasMore() { | |
| 117 return start < end; | |
| 118 } | |
| 119 | |
| 120 /** | |
| 121 * Adjusts the start index to skip over the first character if it is a line | |
| 122 * feed and the previous character was a carriage return. | |
| 123 * | |
| 124 * @param lastWasCR | |
| 125 * whether the previous character was a carriage return | |
| 126 */ | |
| 127 public void adjust(boolean lastWasCR) { | |
| 128 if (lastWasCR && buffer[start] == '\n') { | |
| 129 start++; | |
| 130 } | |
| 131 } | |
| 132 | |
| 133 /** | |
| 134 * Sets the end index. | |
| 135 * | |
| 136 * @param end | |
| 137 * the end index | |
| 138 */ | |
| 139 public void setEnd(int end) { | |
| 140 this.end = end; | |
| 141 } | |
| 142 } |
