reorganized file layout (part 1: moves and renames)

[org.ibex.core.git] / src / gnu / regexp / RETokenWordBoundary.java

diff --git a/src/gnu/regexp/RETokenWordBoundary.java b/src/gnu/regexp/RETokenWordBoundary.java
deleted file mode 100644 (file)
index dd8f478..0000000
--- a/src/gnu/regexp/RETokenWordBoundary.java
+++ /dev/null
@@ -1,85 +0,0 @@
-/*
- *  gnu/regexp/RETokenWordBoundary.java
- *  Copyright (C) 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;
-
-/**
- * Represents a combination lookahead/lookbehind for POSIX [:alnum:].
- */
-final class RETokenWordBoundary extends REToken {
-    private boolean negated;
-    private int where;
-    static final int BEGIN = 1;
-    static final int END = 2;
-
-    RETokenWordBoundary(int subIndex, int where, boolean negated) {
-       super(subIndex);
-       this.where = where;
-       this.negated = negated;
-    }
-    
-    boolean match(CharIndexed input, REMatch mymatch) {
-       // Word boundary means input[index-1] was a word character
-       // and input[index] is not, or input[index] is a word character
-       // and input[index-1] was not
-       //  In the string "one two three", these positions match:
-       //  |o|n|e| |t|w|o| |t|h|r|e|e|
-       //  ^     ^ ^     ^ ^         ^
-       boolean after = false;  // is current character a letter or digit?
-       boolean before = false; // is previous character a letter or digit?
-       char ch;
-
-       // TODO: Also check REG_ANCHORINDEX vs. anchor
-       if (((mymatch.eflags & RE.REG_ANCHORINDEX) != RE.REG_ANCHORINDEX) 
-           || (mymatch.offset + mymatch.index > mymatch.anchor)) {
-           if ((ch = input.charAt(mymatch.index - 1)) != CharIndexed.OUT_OF_BOUNDS) {
-               before = Character.isLetterOrDigit(ch) || (ch == '_');
-           }
-       }
-
-       if ((ch = input.charAt(mymatch.index)) != CharIndexed.OUT_OF_BOUNDS) {
-           after = Character.isLetterOrDigit(ch) || (ch == '_');
-       }
-
-       // if (before) and (!after), we're at end (\>)
-       // if (after) and (!before), we're at beginning (\<)
-       boolean doNext = false;
-
-       if ((where & BEGIN) == BEGIN) {
-           doNext = after && !before;
-       }
-       if ((where & END) == END) {
-           doNext ^= before && !after;
-       }
-
-       if (negated) doNext = !doNext;
-
-       return (doNext ? next(input, mymatch) : false);
-    }
-    
-    void dump(StringBuffer os) {
-       if (where == (BEGIN | END)) {
-           os.append( negated ? "\\B" : "\\b" );
-       } else if (where == BEGIN) {
-           os.append("\\<");
-       } else {
-           os.append("\\>");
-       }
-    }
-}