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Diffstat (limited to 'trunk/infrastructure/rhino1_7R1/src/org/mozilla/javascript/regexp/NativeRegExpCtor.java')
| -rw-r--r-- | trunk/infrastructure/rhino1_7R1/src/org/mozilla/javascript/regexp/NativeRegExpCtor.java | 289 |
1 files changed, 289 insertions, 0 deletions
diff --git a/trunk/infrastructure/rhino1_7R1/src/org/mozilla/javascript/regexp/NativeRegExpCtor.java b/trunk/infrastructure/rhino1_7R1/src/org/mozilla/javascript/regexp/NativeRegExpCtor.java new file mode 100644 index 0000000..808d62d --- /dev/null +++ b/trunk/infrastructure/rhino1_7R1/src/org/mozilla/javascript/regexp/NativeRegExpCtor.java @@ -0,0 +1,289 @@ +/* -*- Mode: java; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 4 -*- + * + * ***** BEGIN LICENSE BLOCK ***** + * Version: MPL 1.1/GPL 2.0 + * + * The contents of this file are subject to the Mozilla Public License Version + * 1.1 (the "License"); you may not use this file except in compliance with + * the License. You may obtain a copy of the License at + * http://www.mozilla.org/MPL/ + * + * Software distributed under the License is distributed on an "AS IS" basis, + * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License + * for the specific language governing rights and limitations under the + * License. + * + * The Original Code is Rhino code, released + * May 6, 1998. + * + * The Initial Developer of the Original Code is + * Netscape Communications Corporation. + * Portions created by the Initial Developer are Copyright (C) 1997-1999 + * the Initial Developer. All Rights Reserved. + * + * Contributor(s): + * Norris Boyd + * Igor Bukanov + * Brendan Eich + * + * Alternatively, the contents of this file may be used under the terms of + * the GNU General Public License Version 2 or later (the "GPL"), in which + * case the provisions of the GPL are applicable instead of those above. If + * you wish to allow use of your version of this file only under the terms of + * the GPL and not to allow others to use your version of this file under the + * MPL, indicate your decision by deleting the provisions above and replacing + * them with the notice and other provisions required by the GPL. If you do + * not delete the provisions above, a recipient may use your version of this + * file under either the MPL or the GPL. + * + * ***** END LICENSE BLOCK ***** */ + +package org.mozilla.javascript.regexp; + +import org.mozilla.javascript.*; + +/** + * This class implements the RegExp constructor native object. + * + * Revision History: + * Implementation in C by Brendan Eich + * Initial port to Java by Norris Boyd from jsregexp.c version 1.36 + * Merged up to version 1.38, which included Unicode support. + * Merged bug fixes in version 1.39. + * Merged JSFUN13_BRANCH changes up to 1.32.2.11 + * + * @author Brendan Eich + * @author Norris Boyd + */ +class NativeRegExpCtor extends BaseFunction +{ + static final long serialVersionUID = -5733330028285400526L; + + NativeRegExpCtor() + { + } + + public String getFunctionName() + { + return "RegExp"; + } + + public Object call(Context cx, Scriptable scope, Scriptable thisObj, + Object[] args) + { + if (args.length > 0 && args[0] instanceof NativeRegExp && + (args.length == 1 || args[1] == Undefined.instance)) + { + return args[0]; + } + return construct(cx, scope, args); + } + + public Scriptable construct(Context cx, Scriptable scope, Object[] args) + { + NativeRegExp re = new NativeRegExp(); + re.compile(cx, scope, args); + ScriptRuntime.setObjectProtoAndParent(re, scope); + return re; + } + + private static RegExpImpl getImpl() + { + Context cx = Context.getCurrentContext(); + return (RegExpImpl) ScriptRuntime.getRegExpProxy(cx); + } + +// #string_id_map# + + private static final int + Id_multiline = 1, + Id_STAR = 2, // #string=$*# + + Id_input = 3, + Id_UNDERSCORE = 4, // #string=$_# + + Id_lastMatch = 5, + Id_AMPERSAND = 6, // #string=$&# + + Id_lastParen = 7, + Id_PLUS = 8, // #string=$+# + + Id_leftContext = 9, + Id_BACK_QUOTE = 10, // #string=$`# + + Id_rightContext = 11, + Id_QUOTE = 12, // #string=$'# + + DOLLAR_ID_BASE = 12; + + private static final int + Id_DOLLAR_1 = DOLLAR_ID_BASE + 1, // #string=$1# + Id_DOLLAR_2 = DOLLAR_ID_BASE + 2, // #string=$2# + Id_DOLLAR_3 = DOLLAR_ID_BASE + 3, // #string=$3# + Id_DOLLAR_4 = DOLLAR_ID_BASE + 4, // #string=$4# + Id_DOLLAR_5 = DOLLAR_ID_BASE + 5, // #string=$5# + Id_DOLLAR_6 = DOLLAR_ID_BASE + 6, // #string=$6# + Id_DOLLAR_7 = DOLLAR_ID_BASE + 7, // #string=$7# + Id_DOLLAR_8 = DOLLAR_ID_BASE + 8, // #string=$8# + Id_DOLLAR_9 = DOLLAR_ID_BASE + 9, // #string=$9# + + MAX_INSTANCE_ID = DOLLAR_ID_BASE + 9; + + protected int getMaxInstanceId() + { + return super.getMaxInstanceId() + MAX_INSTANCE_ID; + } + + protected int findInstanceIdInfo(String s) { + int id; +// #generated# Last update: 2001-05-24 16:09:31 GMT+02:00 + L0: { id = 0; String X = null; int c; + L: switch (s.length()) { + case 2: switch (s.charAt(1)) { + case '&': if (s.charAt(0)=='$') {id=Id_AMPERSAND; break L0;} break L; + case '\'': if (s.charAt(0)=='$') {id=Id_QUOTE; break L0;} break L; + case '*': if (s.charAt(0)=='$') {id=Id_STAR; break L0;} break L; + case '+': if (s.charAt(0)=='$') {id=Id_PLUS; break L0;} break L; + case '1': if (s.charAt(0)=='$') {id=Id_DOLLAR_1; break L0;} break L; + case '2': if (s.charAt(0)=='$') {id=Id_DOLLAR_2; break L0;} break L; + case '3': if (s.charAt(0)=='$') {id=Id_DOLLAR_3; break L0;} break L; + case '4': if (s.charAt(0)=='$') {id=Id_DOLLAR_4; break L0;} break L; + case '5': if (s.charAt(0)=='$') {id=Id_DOLLAR_5; break L0;} break L; + case '6': if (s.charAt(0)=='$') {id=Id_DOLLAR_6; break L0;} break L; + case '7': if (s.charAt(0)=='$') {id=Id_DOLLAR_7; break L0;} break L; + case '8': if (s.charAt(0)=='$') {id=Id_DOLLAR_8; break L0;} break L; + case '9': if (s.charAt(0)=='$') {id=Id_DOLLAR_9; break L0;} break L; + case '_': if (s.charAt(0)=='$') {id=Id_UNDERSCORE; break L0;} break L; + case '`': if (s.charAt(0)=='$') {id=Id_BACK_QUOTE; break L0;} break L; + } break L; + case 5: X="input";id=Id_input; break L; + case 9: c=s.charAt(4); + if (c=='M') { X="lastMatch";id=Id_lastMatch; } + else if (c=='P') { X="lastParen";id=Id_lastParen; } + else if (c=='i') { X="multiline";id=Id_multiline; } + break L; + case 11: X="leftContext";id=Id_leftContext; break L; + case 12: X="rightContext";id=Id_rightContext; break L; + } + if (X!=null && X!=s && !X.equals(s)) id = 0; + } +// #/generated# + + if (id == 0) return super.findInstanceIdInfo(s); + + int attr; + switch (id) { + case Id_multiline: + case Id_STAR: + case Id_input: + case Id_UNDERSCORE: + attr = PERMANENT; + break; + default: + attr = PERMANENT | READONLY; + break; + } + + return instanceIdInfo(attr, super.getMaxInstanceId() + id); + } + +// #/string_id_map# + + protected String getInstanceIdName(int id) + { + int shifted = id - super.getMaxInstanceId(); + if (1 <= shifted && shifted <= MAX_INSTANCE_ID) { + switch (shifted) { + case Id_multiline: return "multiline"; + case Id_STAR: return "$*"; + + case Id_input: return "input"; + case Id_UNDERSCORE: return "$_"; + + case Id_lastMatch: return "lastMatch"; + case Id_AMPERSAND: return "$&"; + + case Id_lastParen: return "lastParen"; + case Id_PLUS: return "$+"; + + case Id_leftContext: return "leftContext"; + case Id_BACK_QUOTE: return "$`"; + + case Id_rightContext: return "rightContext"; + case Id_QUOTE: return "$'"; + } + // Must be one of $1..$9, convert to 0..8 + int substring_number = shifted - DOLLAR_ID_BASE - 1; + char[] buf = { '$', (char)('1' + substring_number) }; + return new String(buf); + } + return super.getInstanceIdName(id); + } + + protected Object getInstanceIdValue(int id) + { + int shifted = id - super.getMaxInstanceId(); + if (1 <= shifted && shifted <= MAX_INSTANCE_ID) { + RegExpImpl impl = getImpl(); + Object stringResult; + switch (shifted) { + case Id_multiline: + case Id_STAR: + return ScriptRuntime.wrapBoolean(impl.multiline); + + case Id_input: + case Id_UNDERSCORE: + stringResult = impl.input; + break; + + case Id_lastMatch: + case Id_AMPERSAND: + stringResult = impl.lastMatch; + break; + + case Id_lastParen: + case Id_PLUS: + stringResult = impl.lastParen; + break; + + case Id_leftContext: + case Id_BACK_QUOTE: + stringResult = impl.leftContext; + break; + + case Id_rightContext: + case Id_QUOTE: + stringResult = impl.rightContext; + break; + + default: + { + // Must be one of $1..$9, convert to 0..8 + int substring_number = shifted - DOLLAR_ID_BASE - 1; + stringResult = impl.getParenSubString(substring_number); + break; + } + } + return (stringResult == null) ? "" : stringResult.toString(); + } + return super.getInstanceIdValue(id); + } + + protected void setInstanceIdValue(int id, Object value) + { + int shifted = id - super.getMaxInstanceId(); + switch (shifted) { + case Id_multiline: + case Id_STAR: + getImpl().multiline = ScriptRuntime.toBoolean(value); + return; + + case Id_input: + case Id_UNDERSCORE: + getImpl().input = ScriptRuntime.toString(value); + return; + } + super.setInstanceIdValue(id, value); + } + +} |