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Diffstat (limited to 'libjava/gnu/regexp/RETokenOneOf.java')
| -rw-r--r-- | libjava/gnu/regexp/RETokenOneOf.java | 130 |
1 files changed, 0 insertions, 130 deletions
diff --git a/libjava/gnu/regexp/RETokenOneOf.java b/libjava/gnu/regexp/RETokenOneOf.java deleted file mode 100644 index 7752b25771c..00000000000 --- a/libjava/gnu/regexp/RETokenOneOf.java +++ /dev/null @@ -1,130 +0,0 @@ -/* gnu/regexp/RETokenOneOf.java - Copyright (C) 1998-2001, 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., 59 Temple Place, Suite 330, Boston, MA -02111-1307 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 gnu.regexp; -import java.util.Vector; - -final class RETokenOneOf extends REToken { - private Vector options; - private boolean negative; - - // This constructor is used for convenience when we know the set beforehand, - // e.g. \d --> new RETokenOneOf("0123456789",false, ..) - // \D --> new RETokenOneOf("0123456789",true, ..) - - RETokenOneOf(int subIndex, String optionsStr, boolean negative, boolean insens) { - super(subIndex); - options = new Vector(); - this.negative = negative; - for (int i = 0; i < optionsStr.length(); i++) - options.addElement(new RETokenChar(subIndex,optionsStr.charAt(i),insens)); - } - - RETokenOneOf(int subIndex, Vector options, boolean negative) { - super(subIndex); - this.options = options; - this.negative = negative; - } - - int getMinimumLength() { - int min = Integer.MAX_VALUE; - int x; - for (int i=0; i < options.size(); i++) { - if ((x = ((REToken) options.elementAt(i)).getMinimumLength()) < min) - min = x; - } - return min; - } - - boolean match(CharIndexed input, REMatch mymatch) { - if (negative && (input.charAt(mymatch.index) == CharIndexed.OUT_OF_BOUNDS)) - return false; - - REMatch newMatch = null; - REMatch last = null; - REToken tk; - boolean isMatch; - for (int i=0; i < options.size(); i++) { - tk = (REToken) options.elementAt(i); - REMatch tryMatch = (REMatch) mymatch.clone(); - if (tk.match(input, tryMatch)) { // match was successful - if (negative) return false; - - if (next(input, tryMatch)) { - // Add tryMatch to list of possibilities. - if (last == null) { - newMatch = tryMatch; - last = tryMatch; - } else { - last.next = tryMatch; - last = tryMatch; - } - } // next succeeds - } // is a match - } // try next option - - if (newMatch != null) { - if (negative) { - return false; - } else { - // set contents of mymatch equal to newMatch - - // try each one that matched - mymatch.assignFrom(newMatch); - return true; - } - } else { - if (negative) { - ++mymatch.index; - return next(input, mymatch); - } else { - return false; - } - } - - // index+1 works for [^abc] lists, not for generic lookahead (--> index) - } - - void dump(StringBuffer os) { - os.append(negative ? "[^" : "(?:"); - for (int i = 0; i < options.size(); i++) { - if (!negative && (i > 0)) os.append('|'); - ((REToken) options.elementAt(i)).dumpAll(os); - } - os.append(negative ? ']' : ')'); - } -} |