1 /* 2 * Permission is hereby granted, free of charge, to any person obtaining a copy of 3 * this software and associated documentation files (the "Software"), to deal in 4 * the Software without restriction, including without limitation the rights to 5 * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies 6 * of the Software, and to permit persons to whom the Software is furnished to do 7 * so, subject to the following conditions: 8 * 9 * The above copyright notice and this permission notice shall be included in all 10 * copies or substantial portions of the Software. 11 * 12 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 13 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 14 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE 15 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER 16 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, 17 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE 18 * SOFTWARE. 19 */ 20 package jdk.nashorn.internal.runtime.regexp.joni; 21 22 import jdk.nashorn.internal.runtime.regexp.joni.ast.CClassNode; 23 import jdk.nashorn.internal.runtime.regexp.joni.ast.ConsAltNode; 24 import jdk.nashorn.internal.runtime.regexp.joni.ast.StringNode; 25 26 final class ApplyCaseFold { 27 28 // i_apply_case_fold 29 public void apply(int from, int[]to, int length, Object o) { 30 ApplyCaseFoldArg arg = (ApplyCaseFoldArg)o; 31 32 ScanEnvironment env = arg.env; 33 CClassNode cc = arg.cc; 34 BitSet bs = cc.bs; 35 36 if (length == 1) { 37 boolean inCC = cc.isCodeInCC(from); 38 39 if (Config.CASE_FOLD_IS_APPLIED_INSIDE_NEGATIVE_CCLASS) { 40 if ((inCC && !cc.isNot()) || (!inCC && cc.isNot())) { 41 if (to[0] >= BitSet.SINGLE_BYTE_SIZE) { 42 cc.addCodeRange(env, to[0], to[0]); 43 } else { 44 /* /(?i:[^A-C])/.match("a") ==> fail. */ 45 bs.set(to[0]); 46 } 47 } 48 } else { 49 if (inCC) { 50 if (to[0] >= BitSet.SINGLE_BYTE_SIZE) { 51 if (cc.isNot()) cc.clearNotFlag(); 52 cc.addCodeRange(env, to[0], to[0]); 53 } else { 54 if (cc.isNot()) { 55 bs.clear(to[0]); 56 } else { 57 bs.set(to[0]); 58 } 59 } 60 } 61 } // CASE_FOLD_IS_APPLIED_INSIDE_NEGATIVE_CCLASS 62 63 } else { 64 if (cc.isCodeInCC(from) && (!Config.CASE_FOLD_IS_APPLIED_INSIDE_NEGATIVE_CCLASS || !cc.isNot())) { 65 StringNode node = null; 66 for (int i=0; i<length; i++) { 67 if (i == 0) { 68 node = new StringNode(); 69 /* char-class expanded multi-char only 70 compare with string folded at match time. */ 71 node.setAmbig(); 72 } 73 node.catCode(to[i]); 74 } 75 76 ConsAltNode alt = ConsAltNode.newAltNode(node, null); 77 78 if (arg.tail == null) { 79 arg.altRoot = alt; 80 } else { 81 arg.tail.setCdr(alt); 82 } 83 arg.tail = alt; 84 } 85 86 } 87 88 } 89 90 static final ApplyCaseFold INSTANCE = new ApplyCaseFold(); 91 } --- EOF ---