17b26015ac58e54e88f4214e248f772ad4f055477whesse@chromium.org// Copyright 2011 the V8 project authors. All rights reserved. 29a4089a092cad9ff23b6416b92cd5d818dc101d1mads.s.ager@gmail.com// Redistribution and use in source and binary forms, with or without 39a4089a092cad9ff23b6416b92cd5d818dc101d1mads.s.ager@gmail.com// modification, are permitted provided that the following conditions are 49a4089a092cad9ff23b6416b92cd5d818dc101d1mads.s.ager@gmail.com// met: 59a4089a092cad9ff23b6416b92cd5d818dc101d1mads.s.ager@gmail.com// 69a4089a092cad9ff23b6416b92cd5d818dc101d1mads.s.ager@gmail.com// * Redistributions of source code must retain the above copyright 79a4089a092cad9ff23b6416b92cd5d818dc101d1mads.s.ager@gmail.com// notice, this list of conditions and the following disclaimer. 89a4089a092cad9ff23b6416b92cd5d818dc101d1mads.s.ager@gmail.com// * Redistributions in binary form must reproduce the above 99a4089a092cad9ff23b6416b92cd5d818dc101d1mads.s.ager@gmail.com// copyright notice, this list of conditions and the following 109a4089a092cad9ff23b6416b92cd5d818dc101d1mads.s.ager@gmail.com// disclaimer in the documentation and/or other materials provided 119a4089a092cad9ff23b6416b92cd5d818dc101d1mads.s.ager@gmail.com// with the distribution. 129a4089a092cad9ff23b6416b92cd5d818dc101d1mads.s.ager@gmail.com// * Neither the name of Google Inc. nor the names of its 139a4089a092cad9ff23b6416b92cd5d818dc101d1mads.s.ager@gmail.com// contributors may be used to endorse or promote products derived 149a4089a092cad9ff23b6416b92cd5d818dc101d1mads.s.ager@gmail.com// from this software without specific prior written permission. 159a4089a092cad9ff23b6416b92cd5d818dc101d1mads.s.ager@gmail.com// 169a4089a092cad9ff23b6416b92cd5d818dc101d1mads.s.ager@gmail.com// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 179a4089a092cad9ff23b6416b92cd5d818dc101d1mads.s.ager@gmail.com// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 189a4089a092cad9ff23b6416b92cd5d818dc101d1mads.s.ager@gmail.com// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 199a4089a092cad9ff23b6416b92cd5d818dc101d1mads.s.ager@gmail.com// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 209a4089a092cad9ff23b6416b92cd5d818dc101d1mads.s.ager@gmail.com// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 219a4089a092cad9ff23b6416b92cd5d818dc101d1mads.s.ager@gmail.com// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 229a4089a092cad9ff23b6416b92cd5d818dc101d1mads.s.ager@gmail.com// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 239a4089a092cad9ff23b6416b92cd5d818dc101d1mads.s.ager@gmail.com// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 249a4089a092cad9ff23b6416b92cd5d818dc101d1mads.s.ager@gmail.com// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 259a4089a092cad9ff23b6416b92cd5d818dc101d1mads.s.ager@gmail.com// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 269a4089a092cad9ff23b6416b92cd5d818dc101d1mads.s.ager@gmail.com// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 279a4089a092cad9ff23b6416b92cd5d818dc101d1mads.s.ager@gmail.com 287b26015ac58e54e88f4214e248f772ad4f055477whesse@chromium.org// Avoid excessive expansions of regexp repetitions inside regexp repetitions. 297b26015ac58e54e88f4214e248f772ad4f055477whesse@chromium.org// Some of these caused stack overflows, others cause out-of-memory. 307b26015ac58e54e88f4214e248f772ad4f055477whesse@chromium.orgvar r1 = /(?:a(?:b(?:c(?:d(?:e(?:f(?:g(?:h(?:i(?:j(?:k(?:l(?:m(?:n(?:o(?:p(?:q(?:r(?:s(?:t(?:u(?:v(?:w(?:x(?:y(?:z(?:FooBar)+)+)+)+)+)+)+)+)+)+)+)+)+)+)+)+)+)+)+)+)+)+)+)+)+)+)/; 317b26015ac58e54e88f4214e248f772ad4f055477whesse@chromium.org"xxx".match(r1); 329a4089a092cad9ff23b6416b92cd5d818dc101d1mads.s.ager@gmail.com 337b26015ac58e54e88f4214e248f772ad4f055477whesse@chromium.orgvar r2 = /(?:a(?:b(?:c(?:d(?:e(?:f(?:g(?:h(?:i(?:j(?:k(?:l(?:FooBar){0,2}){0,2}){0,2}){0,2}){0,2}){0,2}){0,2}){0,2}){0,2}){0,2}){0,2}){0,2}){0,2}/; 347b26015ac58e54e88f4214e248f772ad4f055477whesse@chromium.org"xxx".match(r2); 359a4089a092cad9ff23b6416b92cd5d818dc101d1mads.s.ager@gmail.com 367b26015ac58e54e88f4214e248f772ad4f055477whesse@chromium.orgvar r3 = /(?:a(?:b(?:c(?:d(?:e(?:f(?:g(?:h(?:i(?:j(?:k(?:l(?:FooBar){2}){2}){2}){2}){2}){2}){2}){2}){2}){2}){2}){2}){2}/; 377b26015ac58e54e88f4214e248f772ad4f055477whesse@chromium.org"xxx".match(r3); 387b26015ac58e54e88f4214e248f772ad4f055477whesse@chromium.org 397b26015ac58e54e88f4214e248f772ad4f055477whesse@chromium.orgvar r4 = /(?:a(?:b(?:c(?:d(?:e(?:f(?:g(?:h(?:i(?:FooBar){3,6}){3,6}){3,6}){3,6}){3,6}){3,6}){3,6}){3,6}){3,6}){3,6}/; 407b26015ac58e54e88f4214e248f772ad4f055477whesse@chromium.org"xxx".match(r4); 41