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/*
 * Copyright 2010 dorkbox, llc
 *
 * Licensed under the Apache License, Version 2.0 (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.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package dorkbox.util;

public class RegExp {
    private static final String whitespace_chars =  ""       /* dummy empty string for homogeneity */
            + "\\u0009" // CHARACTER TABULATION
            + "\\u000A" // LINE FEED (LF)
            + "\\u000B" // LINE TABULATION
            + "\\u000C" // FORM FEED (FF)
            + "\\u000D" // CARRIAGE RETURN (CR)
            + "\\u0020" // SPACE
            + "\\u0085" // NEXT LINE (NEL)
            + "\\u00A0" // NO-BREAK SPACE
            + "\\u1680" // OGHAM SPACE MARK
            + "\\u180E" // MONGOLIAN VOWEL SEPARATOR
            + "\\u2000" // EN QUAD
            + "\\u2001" // EM QUAD
            + "\\u2002" // EN SPACE
            + "\\u2003" // EM SPACE
            + "\\u2004" // THREE-PER-EM SPACE
            + "\\u2005" // FOUR-PER-EM SPACE
            + "\\u2006" // SIX-PER-EM SPACE
            + "\\u2007" // FIGURE SPACE
            + "\\u2008" // PUNCTUATION SPACE
            + "\\u2009" // THIN SPACE
            + "\\u200A" // HAIR SPACE
            + "\\u2028" // LINE SEPARATOR
            + "\\u2029" // PARAGRAPH SEPARATOR
            + "\\u202F" // NARROW NO-BREAK SPACE
            + "\\u205F" // MEDIUM MATHEMATICAL SPACE
            + "\\u3000" // IDEOGRAPHIC SPACE
                ;

    /* A \s that actually works for Java’s native character set: Unicode */
    public static final String whitespace_charclass = "["  + whitespace_chars + "]";

    /* A \S that actually works for  Java’s native character set: Unicode */
    public static final String not_whitespace_charclass = "[^" + whitespace_chars + "]";
}