/interpreter/tags/at2dist130208/src/edu/vub/util/regexp/UncheckedRE.java
http://ambienttalk.googlecode.com/ · Java · 109 lines · 16 code · 7 blank · 86 comment · 0 complexity · e1572b690c7e2947a12f618ea1554bf4 MD5 · raw file
- /* gnu/regexp/UncheckedRE.java
- Copyright (C) 2001, 2004 Free Software Foundation, Inc.
- This file is part of GNU Classpath.
- GNU Classpath is free software; you can redistribute it and/or modify
- it under the terms of the GNU General Public License as published by
- the Free Software Foundation; either version 2, or (at your option)
- any later version.
- GNU Classpath 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
- General Public License for more details.
- You should have received a copy of the GNU General Public License
- along with GNU Classpath; see the file COPYING. If not, write to the
- Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
- 02110-1301 USA.
- Linking this library statically or dynamically with other modules is
- making a combined work based on this library. Thus, the terms and
- conditions of the GNU General Public License cover the whole
- combination.
- As a special exception, the copyright holders of this library give you
- permission to link this library with independent modules to produce an
- executable, regardless of the license terms of these independent
- modules, and to copy and distribute the resulting executable under
- terms of your choice, provided that you also meet, for each linked
- independent module, the terms and conditions of the license of that
- module. An independent module is a module which is not derived from
- or based on this library. If you modify this library, you may extend
- this exception to your version of the library, but you are not
- obligated to do so. If you do not wish to do so, delete this
- exception statement from your version. */
- package edu.vub.util.regexp;
- /**
- * UncheckedRE is a subclass of RE that allows programmers an easier means
- * of programmatically precompiling regular expressions. It is constructed
- * and used in exactly the same manner as an instance of the RE class; the
- * only difference is that its constructors do not throw REException.
- * Instead, if a syntax error is encountered during construction, a
- * RuntimeException will be thrown.
- * <P>
- * Note that this makes UncheckedRE dangerous if constructed with
- * dynamic data. Do not use UncheckedRE unless you are completely sure
- * that all input being passed to it contains valid, well-formed
- * regular expressions for the syntax specified.
- *
- * @author <A HREF="mailto:wes@cacas.org">Wes Biggs</A>
- * @see edu.vub.util.regexp.RE
- * @since edu.vub.util.regexp 1.1.4
- */
- public final class UncheckedRE extends RE {
- /**
- * Constructs a regular expression pattern buffer without any compilation
- * flags set, and using the default syntax (RESyntax.RE_SYNTAX_PERL5).
- *
- * @param pattern A regular expression pattern, in the form of a String,
- * StringBuffer or char[]. Other input types will be converted to
- * strings using the toString() method.
- * @exception RuntimeException The input pattern could not be parsed.
- * @exception NullPointerException The pattern was null.
- */
- public UncheckedRE(Object pattern) {
- this(pattern,0,RESyntax.RE_SYNTAX_PERL5);
- }
- /**
- * Constructs a regular expression pattern buffer using the specified
- * compilation flags and the default syntax (RESyntax.RE_SYNTAX_PERL5).
- *
- * @param pattern A regular expression pattern, in the form of a String,
- * StringBuffer, or char[]. Other input types will be converted to
- * strings using the toString() method.
- * @param cflags The logical OR of any combination of the compilation flags in the RE class.
- * @exception RuntimeException The input pattern could not be parsed.
- * @exception NullPointerException The pattern was null.
- */
- public UncheckedRE(Object pattern, int cflags) {
- this(pattern,cflags,RESyntax.RE_SYNTAX_PERL5);
- }
- /**
- * Constructs a regular expression pattern buffer using the specified
- * compilation flags and regular expression syntax.
- *
- * @param pattern A regular expression pattern, in the form of a String,
- * StringBuffer, or char[]. Other input types will be converted to
- * strings using the toString() method.
- * @param cflags The logical OR of any combination of the compilation flags in the RE class.
- * @param syntax The type of regular expression syntax to use.
- * @exception RuntimeException The input pattern could not be parsed.
- * @exception NullPointerException The pattern was null.
- */
- public UncheckedRE(Object pattern, int cflags, RESyntax syntax) {
- try {
- initialize(pattern,cflags,syntax,0,0);
- } catch (REException e) {
- throw new RuntimeException(e.getMessage());
- }
- }
- }