_sre.java example

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/*
 * Copyright 2000 Finn Bock
 *
 * This program contains material copyrighted by:
 * Copyright (c) 1997-2000 by Secret Labs AB.  All rights reserved.
 *
 * This version of the SRE library can be redistributed under CNRI's
 * Python 1.6 license.  For any other use, please contact Secret Labs
 * AB (info@pythonware.com).
 *
 * Portions of this engine have been developed in cooperation with
 * CNRI.  Hewlett-Packard provided funding for 1.6 integration and
 * other compatibility work.
 */

package org.python.modules;

import org.python.core.Py;
import org.python.core.PyInteger;
import org.python.core.PyList;
import org.python.core.PyObject;
import org.python.core.PyString;
import org.python.modules.sre.PatternObject;
import org.python.modules.sre.SRE_STATE;

public class _sre {
    public static int MAGIC = SRE_STATE.SRE_MAGIC;

    public static int CODESIZE = 2;

    public static PatternObject compile(PyString pattern, int flags, PyObject code, int groups, PyObject groupindex,
            PyObject indexgroup) {
        char[] ccode = null;
        if (code instanceof PyList) {
            int n = code.__len__();
            ccode = new char[n];
            for (int i = 0; i < n; i++)
                ccode[i] = (char) ((PyInteger) code.__getitem__(i).__int__()).getValue();
        } else {
            throw Py.TypeError("Expected list");
        }

        PatternObject po = new PatternObject(pattern, flags, ccode, groups, groupindex, indexgroup);
        return po;
    }

    public static int getcodesize() {
        return CODESIZE;
    }

    public static int getlower(int ch, int flags) {
        return SRE_STATE.getlower(ch, flags);
    }
}