Wavefront.java

private static Pattern vertexPattern = Pattern.compile("(v( (\\-){0,1}\\d+(\\.\\d+)?){3,4} *\\n)|(v( (\\-){0,1}\\d+(\\.\\d+)?){3,4} *$)");
    private static Pattern vertexNormalPattern = Pattern.compile("(vn( (\\-){0,1}\\d+(\\.\\d+)?){3,4} *\\n)|(vn( (\\-){0,1}\\d+(\\.\\d+)?){3,4} *$)");
    private static Pattern textureCoordinatePattern = Pattern.compile("(vt( (\\-){0,1}\\d+\\.\\d+){2,3} *\\n)|(vt( (\\-){0,1}\\d+(\\.\\d+)?){2,3} *$)");
    private static Pattern face_V_VT_VN_Pattern = Pattern.compile("(f( \\d+/\\d+/\\d+){3,4} *\\n)|(f( \\d+/\\d+/\\d+){3,4} *$)");
    private static Pattern face_V_VT_Pattern = Pattern.compile("(f( \\d+/\\d+){3,4} *\\n)|(f( \\d+/\\d+){3,4} *$)");
    private static Pattern face_V_VN_Pattern = Pattern.compile("(f( \\d+//\\d+){3,4} *\\n)|(f( \\d+//\\d+){3,4} *$)");
    private static Pattern face_V_Pattern = Pattern.compile("(f( \\d+){3,4} *\\n)|(f( \\d+){3,4} *$)");
    private static Pattern groupObjectPattern = Pattern.compile("([go]( [\\w\\d\\.]+) *\\n)|([go]( [\\w\\d\\.]+) *$)");

    private static Matcher vertexMatcher, vertexNormalMatcher, textureCoordinateMatcher;
    private static Matcher face_V_VT_VN_Matcher, face_V_VT_Matcher, face_V_VN_Matcher, face_V_Matcher;
    private static Matcher groupObjectMatcher;