/jEdit/tags/jedit-4-0-pre5/gnu/regexp/REException.java
Java | 164 lines | 39 code | 23 blank | 102 comment | 0 complexity | ac0e3b8cf0f97c688f8adc895275cd47 MD5 | raw file
Possible License(s): BSD-3-Clause, AGPL-1.0, Apache-2.0, LGPL-2.0, LGPL-3.0, GPL-2.0, CC-BY-SA-3.0, LGPL-2.1, GPL-3.0, MPL-2.0-no-copyleft-exception, IPL-1.0
- /*
- * gnu/regexp/REException.java
- * Copyright (C) 1998-2001 Wes Biggs
- *
- * This library is free software; you can redistribute it and/or modify
- * it under the terms of the GNU Lesser General Public License as published
- * by the Free Software Foundation; either version 2.1 of the License, or
- * (at your option) any later version.
- *
- * This library is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU Lesser General Public License for more details.
- *
- * You should have received a copy of the GNU Lesser General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
- */
- package gnu.regexp;
- import java.text.MessageFormat;
- /**
- * This is the regular expression exception class. An exception of this type
- * defines the three attributes:
- * <OL>
- * <LI> A descriptive message of the error.
- * <LI> An integral type code equivalent to one of the statically
- * defined symbols listed below.
- * <LI> The approximate position in the input string where the error
- * occurred.
- * </OL>
- *
- * @author <A HREF="mailto:wes@cacas.org">Wes Biggs</A>
- */
- public class REException extends Exception {
- private int type;
- private int pos;
- // Error conditions from GNU regcomp(3) manual
- /**
- * Error flag.
- * Invalid use of repetition operators such as using
- * `*' as the first character.
- */
- public static final int REG_BADRPT = 1;
- /**
- * Error flag.
- * Invalid use of back reference operator.
- */
- public static final int REG_BADBR = 2;
- /**
- * Error flag.
- * Un-matched brace interval operators.
- */
- public static final int REG_EBRACE = 3;
- /**
- * Error flag.
- * Un-matched bracket list operators.
- */
- public static final int REG_EBRACK = 4;
- /**
- * Error flag.
- * Invalid use of the range operator, eg. the ending
- * point of the range occurs prior to the starting
- * point.
- */
- public static final int REG_ERANGE = 5;
- /**
- * Error flag.
- * Unknown character class name. <B>Not implemented</B>.
- */
- public static final int REG_ECTYPE = 6;
- /**
- * Error flag.
- * Un-matched parenthesis group operators.
- */
- public static final int REG_EPAREN = 7;
- /**
- * Error flag.
- * Invalid back reference to a subexpression.
- */
- public static final int REG_ESUBREG = 8;
- /**
- * Error flag.
- * Non specific error. <B>Not implemented</B>.
- */
- public static final int REG_EEND = 9;
- /**
- * Error flag.
- * Invalid escape sequence. <B>Not implemented</B>.
- */
- public static final int REG_ESCAPE = 10;
- /**
- * Error flag.
- * Invalid use of pattern operators such as group or list.
- */
- public static final int REG_BADPAT = 11;
- /**
- * Error flag.
- * Compiled regular expression requires a pattern
- * buffer larger than 64Kb. <B>Not implemented</B>.
- */
- public static final int REG_ESIZE = 12;
- /**
- * Error flag.
- * The regex routines ran out of memory. <B>Not implemented</B>.
- */
- public static final int REG_ESPACE = 13;
- REException(String msg, int type, int position) {
- super(msg);
- this.type = type;
- this.pos = position;
- }
- /**
- * Returns the type of the exception, one of the constants listed above.
- */
- public int getType() {
- return type;
- }
- /**
- * Returns the position, relative to the string or character array being
- * compiled, where the error occurred. This position is generally the point
- * where the error was detected, not necessarily the starting index of
- * a bad subexpression.
- */
- public int getPosition() {
- return pos;
- }
- /**
- * Reports the descriptive message associated with this exception
- * as well as its index position in the string or character array
- * being compiled.
- */
- public String getMessage() {
- Object[] args = {new Integer(pos)};
- StringBuffer sb = new StringBuffer();
- String prefix = RE.getLocalizedMessage("error.prefix");
- sb.append(MessageFormat.format(prefix, args));
- sb.append('\n');
- sb.append(super.getMessage());
- return sb.toString();
- }
- }