package tmcm.xModels; import java.util.Hashtable; import java.util.Vector; import java.awt.Color; class Parser { // variable declarations and static initializer at end! Parser(String str) throws ParseError { data = str; pos = 0; userdef = new Hashtable(10); model = new Model(); objects = new Vector(10); nextToken = null; model.frames = 1; // default, to be changed if an animate command is found doParse(); model.scene = new ComplexObject(objects); if (model.viewDistance == null) model.viewDistance = new ParamVal(20.0); if (model.bgColor == null) model.bgColor = new RGBParam(Color.white); objects = null; data = null; userdef = null; nextToken = null; } Model getModel() { return model; } // everything else is private private void doError(String message) throws ParseError{ throw new ParseError(message,pos); } private Object lookToken() throws ParseError { if (nextToken == null) getToken(); return nextToken; } private Object readToken() throws ParseError { if (nextToken == null) getToken(); Object t = nextToken; nextToken = null; return t; } private void rescanToken() { // force recanning of lookahead token if (nextToken != null) { nextToken = null; pos = tokenStart; } } private void getToken() throws ParseError { while (true) { // skip whitespace and comments if (pos >= data.length()) break; if (data.charAt(pos) == ';') { do { pos++; } while (pos < data.length() && data.charAt(pos) != '\n' && data.charAt(pos) != '\r'); if (pos >= data.length()) break; } if (data.charAt(pos) == ',' || Character.isSpace(data.charAt(pos))) pos++; else break; } tokenStart = pos; // used for rescanning (which is done by doDefineObject() if (pos >= data.length()) { nextToken = eofToken; tokenString = "End-of-data"; return; } char ch = data.charAt(pos); if (ch == '[') { nextToken = leftBracket; tokenString = "["; pos++; } else if (ch == ']') { nextToken = rightBracket; tokenString = "]"; pos++; } else if (ch == ':') { nextToken = colon; tokenString = ":"; pos++; } else if (Character.isLetter(ch) || ch == '_') doWord(); else if (Character.isDigit(ch) || ch == '-' || ch == '+' || ch == '.') doNumber(); else doError("Illegal character, " + ch + ", found in scene description."); } private void doNumber() throws ParseError { buffer.setLength(0); char ch = data.charAt(pos); if (ch == '+' || ch == '-') { buffer.append(ch); pos++; } while (true) { if (pos >= data.length()) break; ch = data.charAt(pos); if (Character.isDigit(ch)) { buffer.append(ch); pos++; } else break; } if (pos < data.length() && data.charAt(pos) == '.') { buffer.append(data.charAt(pos)); pos++; while (true) { if (pos >= data.length()) break; ch = data.charAt(pos); if (Character.isDigit(ch)) { buffer.append(ch); pos++; } else break; } } if (pos < data.length() && (data.charAt(pos) == 'e' || data.charAt(pos) == 'E')) { buffer.append(data.charAt(pos)); pos++; if (pos < data.length() && (data.charAt(pos) == '-' || data.charAt(pos) == '+')) { buffer.append(data.charAt(pos)); pos++; } while (true) { if (pos >= data.length()) break; ch = data.charAt(pos); if (Character.isDigit(ch)) { buffer.append(ch); pos++; } else break; } } Double d = null; tokenString = buffer.toString(); try { d = new Double(tokenString); } catch (NumberFormatException e) { d = null; } if (d == null || d.isInfinite() || d.isNaN()) doError("Illegal number, \"" + tokenString + "\", found in scene description."); nextToken = d; } private void doWord() { buffer.setLength(0); while (true) { if (pos >= data.length()) break; char ch = data.charAt(pos); if (Character.isLetterOrDigit(ch) || ch == '_') { buffer.append(Character.toLowerCase(ch)); pos++; } else break; } tokenString = buffer.toString(); Object val = userdef.get(tokenString); if (val == null) val = predef.get(tokenString); if (val == null) nextToken = tokenString; else nextToken = val; } private void doParse() throws ParseError { Object token = lookToken(); if (token == eofToken) doError("There is no data in the program."); if (token == animate) { doAnimationData(); token = lookToken(); } while (token != eofToken) { if (token == define) doDefineObject(); else if (token == background) doBackgroundData(); else if (token == viewdistance) doViewdistance(); else if (token instanceof SceneMaker || token == leftBracket) objects.addElement(doObject()); else if (token == rgb || token == hsb || token instanceof Color) objects.addElement(doColor()); else if (token instanceof Integer) { if (token == polygon || token == polygon_3d || token == lathe || token == extrude) objects.addElement( doPolyThing(((Integer)token).intValue()) ); else if (token == animate) doError("The command \"animate\" can only be used as the first item in a scene description."); else if (token == infinity) doError("The word \"infinity\" is reserved for use with the ViewDistance command."); else if (token == aboutline) doError("The word \"aboutLine\" is meant for used with a rotation transformation."); else if (token == about) doError("The word \"about\" is meant for used with a rotation transformation."); else doError("Found a transformation when an object or command was expected."); } else if (token instanceof String) doError("Unrecognized word, " + token + ", found in scene description."); else if (token instanceof Character) doError("Misplaced character, " + token + ", found while expecting an object, a color, etc."); else if (token instanceof Double) doError("Number (" + ((Double)token) + ") found in illegal position while expecting a transformation, object, color, etc."); else doError("Unexpected token found in input."); token = lookToken(); } } private void doAnimationData() throws ParseError { readToken(); // skip "animate" Object token = lookToken(); if (!(token instanceof Double)) doError("Expecting a number here; the \"animate\" command must be followd by one or more frame counts."); int[] frameCounts = new int[10]; int ct = 0; while (token instanceof Double) { readToken(); if (ct >= frameCounts.length) { int[] temp = new int[frameCounts.length + 10]; for (int i = 0; i < frameCounts.length; i++) temp[i] = frameCounts[i]; frameCounts = temp; } frameCounts[ct] = ((Double)token).intValue(); if (frameCounts[ct] <= 0) doError("The frame counts for the animate command must be positive integers."); ct++; token = lookToken(); } model.frameCounts = new int[ct + 1]; // model.frameCounts are cumulative model.frameCounts[0] = 0; for (int i = 1; i <= ct; i++) model.frameCounts[i] = frameCounts[i-1] + model.frameCounts[i-1]; model.frames = model.frameCounts[ct] + 1; if (model.frames > 100000) doError("Too many frames specified in animation. An absolute limit of 100000 is imposed."); } private void doDefineObject() throws ParseError { readToken(); // skip "define" Object token = readToken(); if (token instanceof String) { String name = (String)token; token = lookToken(); if (token == rgb || token == hsb || token instanceof Color) userdef.put(name, doColor()); else userdef.put(name, doObject()); rescanToken(); // necessary because putting a new string into userdef might have invalidated the lookahead token } else if (token instanceof SceneMaker || token instanceof Integer) doError("You can't redefine the word \"" + tokenString + "\". It already has a definition."); else if (token == eofToken) doError("Unexpected end-of-data in the middle of a \"define\" command."); else if (token instanceof Character) doError("Found an unexpected character, " + tokenString + ", in a \"define\" command where the word being defined should have been."); else if (token instanceof Double) doError("Found a number in a \"define\" command where the word being defined should have been."); else doError("Error in \"define\" command."); } private void doBackgroundData() throws ParseError { if (model.bgColor != null) doError("The \"background\" command can only be used once in a scene description."); readToken(); //skip "background" model.bgColor = doColor(); } private void doViewdistance() throws ParseError { if (model.viewDistance != null) doError("The \"viewdistance\" command can only be used once in a scene description."); readToken(); //skip "viewdistance" Object token = lookToken(); if (token == infinity) { model.viewDistance = new ParamVal(Double.POSITIVE_INFINITY); readToken(); } else if (token instanceof Double) { ParamVal v = doParam(); for (int i = 0; i < v.values.length; i++) if (!Double.isNaN(v.values[i]) && v.values[i] < 1.0e-10) doError("Negative number or zero found in viewDistance specification. View distance must be positive."); model.viewDistance = v; } else doError("The \"viewdistance\" command must be followed by a number, a number range, or the word \"infinity\"."); } private SceneMaker doObject() throws ParseError { Object token = lookToken(); SceneMaker obj = null; if (token == leftBracket) { readToken(); Vector objlist = new Vector(10); while (true) { token = lookToken(); if (token == eofToken) doError("Missing right bracket; end-of-data encountered in the middle of a complex object."); if (token == rightBracket) break; if (token instanceof SceneMaker || token == leftBracket) objlist.addElement(doObject()); else if (token == rgb || token == hsb || token instanceof Color) objlist.addElement(doColor()); else if (token instanceof Integer) { if (token == polygon || token == polygon_3d || token == lathe || token == extrude) objlist.addElement( doPolyThing(((Integer)token).intValue()) ); else if (token == infinity) doError("The word \"infinity\" is reserved for use with the ViewDistance command."); else if (token == about) doError("The word \"about\" is meant for used with a rotation transformation."); else if (token == aboutline) doError("The word \"aboutLine\" is meant for used with a rotation transformation."); else if (token == define || token == background || token == viewdistance || token == animate) doError("The command \"" + tokenString + "\" cannot be used in a complex object or as an object definition."); else doError("Found a transformation when an object or command was expected."); } else if (token instanceof String) doError("Unrecognized word, " + token + ", found in complex object or as an object definition."); else if (token instanceof Character) doError("Misplaced character, " + token + ", found while expecting an object, a color, etc."); else doError("Error in object."); } readToken(); obj = new ComplexObject(objlist); } else if (token instanceof SceneMaker) obj = (SceneMaker)readToken(); else if (token == polygon || token == polygon_3d || token == lathe || token == extrude) obj = doPolyThing( ((Integer)token).intValue() ); else doError("Expected an object, but found \"" + tokenString + "\"."); token = lookToken(); if (token instanceof Integer && ((Integer)token).intValue() > 100) obj = new TransformedObject(obj,doTransformList()); return obj; } private RGBParam doColor() throws ParseError { Object token = readToken(); RGBParam p = null; if (token == rgb || token == hsb) { Vector params = doParamList(0); if (params.size() != 3) if (token == rgb) doError("Exactly three parameters are required for an rgb specification."); else doError("Exactly three parameters are required for an hsb specification."); for (int i=0; i<3; i++) { ParamVal v = (ParamVal)params.elementAt(i); for (int j=0; j < v.values.length; j++) if (!Double.isNaN(v.values[j]) && (v.values[j] < 0 ||v.values[j] > 1)) if (token == rgb) doError("All parameter values for \"rgb\" must be between 0.0 and 1.0, inclusize."); else doError("All parameter values for \"hsb\" must be between 0.0 and 1.0, inclusize."); } if (token == rgb) p = new RGBParam( (ParamVal)params.elementAt(0), (ParamVal)params.elementAt(1), (ParamVal)params.elementAt(2) ); else p = new HSBParam( (ParamVal)params.elementAt(0), (ParamVal)params.elementAt(1), (ParamVal)params.elementAt(2) ); } else if (token instanceof Color) p = new RGBParam((Color)token); else doError("Expected a color specification, but found \"" + tokenString + "\"."); return p; } private Vector doParamList(int max) throws ParseError { Vector list = new Vector(); list.addElement(doParam()); while (lookToken() instanceof Double) { if (max > 0 && list.size() == max) doError("Found too many parameters, when expecting a maximum of " + max + "."); list.addElement(doParam()); } return list; } private ParamVal doParam() throws ParseError { Object token = readToken(); if (!(token instanceof Double)) if (model.frames > 1) doError("Expected a number or range of numbers, but found \"" + tokenString + "\" instead"); else doError("Expected a number, but found \"" + tokenString + "\" instead"); Object next = lookToken(); if (next != colon) return new ParamVal(((Double)token).doubleValue()); if (model.frames == 1) doError("Found an illegal \":\". This scene was not specified to be an animation; ranges of numbers not allowed."); double[] values = new double[model.frameCounts.length]; values[0] = ((Double)token).doubleValue(); int ct = 1; while (next == colon) { if (ct >= values.length) if (values.length == 2) doError("Too many values. This is not a segmented animation; a number range must give exactly two values."); else doError("Too many values. A number range must contain exactly as many colons as there are segments in the animation."); readToken(); token = lookToken(); if (token == colon) { values[ct] = Double.NaN; ct++; next = token; } else if (token instanceof Double) { values[ct] = ((Double)token).doubleValue(); ct++; readToken(); next = lookToken(); } else doError("Error in number range; a \":\" must be followed by a number or by another \":\"."); } if (ct < values.length) doError("Too few values. A number range must contain exactly as many colons as there are segments in the animation."); return new ParamVal(model.frameCounts, values); } private Vector doTransformList() throws ParseError { Vector list = new Vector(10); Object token = lookToken(); while (token instanceof Integer && ((Integer)token).intValue() > 100) { list.addElement(doTransform()); token = lookToken(); } return list; } private TransformInfo doTransform() throws ParseError { Object token=readToken(); TransformInfo trans = null; Vector params, params2; Object temp; int savePos = pos; switch (((Integer)token).intValue()) { case 105: // scale params = doParamList(3); if (params.size() == 0) doError("Missing parameter for \"scale\" transformation. One, two, or three numbers or number ranges must be provided."); trans = new TransformInfo(TransformInfo.scale, params); break; case 106: // xscale params = doParamList(1); if (params.size() == 0) doError("Missing parameter for \"xscale\" transformation. A number or number range must be provided."); params.addElement(new ParamVal(1)); params.addElement(new ParamVal(1)); trans = new TransformInfo(TransformInfo.scale, params); break; case 107: // yscale params = doParamList(1); if (params.size() == 0) doError("Missing parameter for \"yscale\" transformation. A number or number range must be provided."); temp = params.elementAt(0); params.setSize(0); params.addElement(new ParamVal(1)); params.addElement(temp); params.addElement(new ParamVal(1)); trans = new TransformInfo(TransformInfo.scale, params); break; case 108: // zscale params = doParamList(1); if (params.size() == 0) doError("Missing parameter for \"zscale\" transformation. A number or number range must be provided."); temp = params.elementAt(0); params.setSize(0); params.addElement(new ParamVal(1)); params.addElement(new ParamVal(1)); params.addElement(temp); trans = new TransformInfo(TransformInfo.scale, params); break; case 109: // translate params = doParamList(3); if (params.size() == 0) doError("Missing parameter for \"translate\" transformation. One, two, or three numbers or number ranges must be provided."); trans = new TransformInfo(TransformInfo.translate, params); break; case 110: // xtranslate params = doParamList(1); if (params.size() == 0) doError("Missing parameter for \"xtranslate\" transformation. A number or number range must be provided."); params.addElement(new ParamVal(0)); params.addElement(new ParamVal(0)); trans = new TransformInfo(TransformInfo.translate, params); break; case 111: // ytranslate params = doParamList(1); if (params.size() == 0) doError("Missing parameter for \"ytranslate\" transformation. A number or number range must be provided."); temp = params.elementAt(0); params.setSize(0); params.addElement(new ParamVal(0)); params.addElement(temp); params.addElement(new ParamVal(0)); trans = new TransformInfo(TransformInfo.translate, params); break; case 112: // ztranslate params = doParamList(1); if (params.size() == 0) doError("Missing parameter for \"ztranslate\" transformation. A number or number range must be provided."); temp = params.elementAt(0); params.setSize(0); params.addElement(new ParamVal(0)); params.addElement(new ParamVal(0)); params.addElement(temp); trans = new TransformInfo(TransformInfo.translate, params); break; case 113: // rotate params = doParamList(1); if (params.size() == 0) doError("Missing parameter for \"rotate\" transformation. A number or number range must be provided."); token = lookToken(); if (token == about || token == aboutline) { readToken(); lookToken(); if (tokenString.equals("line")) { readToken(); token = aboutline; } if (token == about) { params2 = doParamList(0); if (params2.size() == 0) doError("Missing parameters. \"About\" requires two parameters to specifiy the pivot point for the rotation."); if (params2.size() != 2) doError("\"About\" requires exactly two parameters to specifiy the pivot point for the rotation."); params.addElement(params2.elementAt(0)); params.addElement(params2.elementAt(1)); trans = new TransformInfo(TransformInfo.rotateAboutPoint, params); } else if (token == aboutline) { params2 = doParamList(0); if (params2.size() == 0) doError("Missing parameters. \"AboutLine\" requires either 3 or 6 parameters to specify the line."); if (params2.size() != 3 && params2.size() != 6) doError("\"AboutLine\" requires either 3 or 6 parameters to specify the line."); for (int i = 0; i < params2.size(); i++) params.addElement(params2.elementAt(i)); trans = new TransformInfo(TransformInfo.rotateAboutLine, params); } } else trans = new TransformInfo(TransformInfo.zrotate, params); break; case 114: // xrorate params = doParamList(1); if (params.size() == 0) doError("Missing parameter for \"xrotate\" transformation. A number or number range must be provided."); trans = new TransformInfo(TransformInfo.xrotate, params); break; case 115: // yrorate params = doParamList(1); if (params.size() == 0) doError("Missing parameter for \"yrotate\" transformation. A number or number range must be provided."); trans = new TransformInfo(TransformInfo.yrotate, params); break; case 116: // zrorate params = doParamList(1); if (params.size() == 0) doError("Missing parameter for \"zrotate\" transformation. A number or number range must be provided."); trans = new TransformInfo(TransformInfo.zrotate, params); break; case 117: // xskew params = doParamList(1); if (params.size() == 0) doError("Missing parameter for \"xskew\" transformation. A number or number range must be provided."); params.addElement(new ParamVal(0)); trans = new TransformInfo(TransformInfo.xskew, params); break; case 118: // yskew params = doParamList(1); if (params.size() == 0) doError("Missing parameter for \"yskew\" transformation. A number or number range must be provided."); trans = new TransformInfo(TransformInfo.yskew, params); break; case 119: // xyshear params = doParamList(0); if (params.size() == 0) doError("Missing parameters for \"xyshear\" transformation. Two numbers or number ranges must be provided."); if (params.size() != 2) doError("Wrong number of parameters for \"xyshear\" transformation. Exactly two numbers or number ranges must be provided."); trans = new TransformInfo(TransformInfo.xyshear, params); break; default: // shouldn't happen! doError("Internal Error: Unimplemented transformation type."); } return trans; } private SceneMaker doPolyThing(int code) throws ParseError { // codes: polygon=1, polygon_3d=2, lathe=3, extrude=4 String command = tokenString; readToken(); Vector params; int reps = 0; int points,lines; ParamLineGroup g; SceneMaker obj = null; if (code == 3 || code == 4) { // read rep count for lathe/extrude Object n = readToken(); if (!(n instanceof Double)) doError("Expected an integer to specify the repetition count for \"" + command + "\" command."); Object next = lookToken(); if (next == colon) doError("The \"" + command + "\" command must be followed by a single integer to specify the repetition count, not a number range."); reps = ((Double)n).intValue(); if (reps < 2) doError("The repetition count for the \"" + command + "\" command must be at least 2"); if (reps > 100) doError("The repetition count for the \"" + command + "\" command is limited to 100."); } params = doParamList(0); if (params.size() == 0) doError("Missing parameters. A list of points for the \"" + command + "\" command is required."); if (code == 2) { if (params.size() % 3 != 0) doError("Polygon_3d requires a list of (x,y,z) points; the number of parameters must be a multiple of 3."); if (params.size() < 6) doError("Polygon_3d requires at least 6 parameters, specifying at least two (x,y,z) points."); } else if (code == 1) { if (params.size() % 2 != 0) doError("Polygon requires a list of (x,y) points; the number of parameters must be an even number."); if (params.size() < 4) doError("Polygon requires at least 4 parameters, specifying at least two (x,y) points."); } else { if (params.size() % 2 != 0) doError(command + " requires a repetition count, followed by an even number of paramaters to specify a list of points."); } switch (code) { case 1: // polygon points = params.size() / 2; lines = points; g = new ParamLineGroup(points,lines); for (int i = 0; i < lines; i++) { g.x[i] = (ParamVal)params.elementAt(2*i); g.y[i] = (ParamVal)params.elementAt(2*i+1); g.z[i] = new ParamVal(0); g.v1[i] = i; g.v2[i] = (i < lines-1)? i+1 : 0; } obj = g; break; case 2: // polygon_3d points = params.size() / 3; points = params.size() / 2; lines = points; g = new ParamLineGroup(points,lines); for (int i = 0; i < lines; i++) { g.x[i] = (ParamVal)params.elementAt(3*i); g.y[i] = (ParamVal)params.elementAt(3*i+1); g.z[i] = (ParamVal)params.elementAt(3*i+2); g.v1[i] = i; g.v2[i] = (i < lines-1)? i+1 : 0; } obj = g; break; case 3: // lathe points = params.size() / 2; obj = new LatheObject(reps,params); break; case 4: // extrude points = params.size() / 2; obj = new ExtrudeObject(reps,params); break; } Object token = lookToken(); if (token instanceof Integer && ((Integer)token).intValue() > 100) obj = new TransformedObject(obj,doTransformList()); return obj; } private Hashtable userdef; private int pos; private String data; private Model model; private Vector objects; private Object nextToken; private int tokenStart; private String tokenString; private StringBuffer buffer = new StringBuffer(50); private final static Character eofToken = new Character((char)26); private final static Character leftBracket = new Character('['); private final static Character rightBracket = new Character(']'); private final static Character colon = new Character(':'); private static Hashtable predef; // see static initializer below private static LineGroup square, circle, cube, line, cone, cylinder; private static final Integer polygon = new Integer(1), polygon_3d = new Integer(2), lathe = new Integer(3), extrude = new Integer(4), rgb = new Integer(18), hsb = new Integer(19), infinity = new Integer(20), define = new Integer(21), animate = new Integer(22), background = new Integer(23), viewdistance = new Integer(24), about = new Integer(90), aboutline = new Integer(91), scale = new Integer(105), // transformation commands have intValue > 100 xscale = new Integer(106), yscale = new Integer(107), zscale = new Integer(108), translate = new Integer(109), xtranslate = new Integer(110), ytranslate = new Integer(111), ztranslate = new Integer(112), rotate = new Integer(113), xrotate = new Integer(114), yrotate = new Integer(115), zrotate = new Integer(116), xskew = new Integer(117), yskew = new Integer(118), xyshear = new Integer(119); static { line = new LineGroup(2,1); line.x[0] = -0.5; line.x[1] = 0.5; line.v1[0] = 0; line.v2[0] = 1; square = new LineGroup(4,4); square.x[0] = -0.5; square.y[0] = -0.5; square.x[1] = 0.5; square.y[1] = -0.5; square.x[2] = 0.5; square.y[2] = 0.5; square.x[3] = -0.5; square.y[3] = 0.5; square.v1[0] = 0; square.v2[0] = 1; square.v1[1] = 1; square.v2[1] = 2; square.v1[2] = 2; square.v2[2] = 3; square.v1[3] = 3; square.v2[3] = 0; cube = new LineGroup(8,12); for (int i = 0; i < 4; i++) { cube.x[i] = cube.x[i+4] = square.x[i]; cube.y[i] = cube.y[i+4] = square.y[i]; cube.z[i] = -0.5; cube.z[i+4] = 0.5; cube.v1[i] = i; cube.v2[i] = (i<3)? i+1 : 0; cube.v1[i+4] = i+4; cube.v2[i+4] = (i<3)? i+5 : 4; cube.v1[i+8] = i; cube.v2[i+8] = i+4; } circle = new LineGroup(36,36); for (int i = 0; i < 36; i++) { circle.x[i] = 0.5*Math.cos(i*Math.PI/18.0); circle.y[i] = 0.5*Math.sin(i*Math.PI/18.0); circle.v1[i] = i; circle.v2[i] = (i<35)? i+1 : 0; } cone = new LineGroup(37,48); for (int i = 0; i < 36; i++) { cone.x[i] = circle.x[i]; cone.y[i] = -0.5; cone.z[i] = circle.y[i]; cone.v1[i] = circle.v1[i]; cone.v2[i] = circle.v2[i]; } cone.x[36] = 0; cone.y[36] = 0.5; cone.z[36] = 0; for (int i = 36; i < 48; i++) { cone.v1[i] = 36; cone.v2[i] = (i-36) * 3; } cylinder = new LineGroup(72,84); for (int i = 0; i < 36; i++) { cylinder.x[i] = cylinder.x[i+36] = circle.x[i]; cylinder.y[i] = -0.5; cylinder.y[i+36] = 0.5; cylinder.z[i] = cylinder.z[i+36] = circle.y[i]; cylinder.v1[i] = circle.v1[i]; cylinder.v1[i+36] = circle.v1[i]+36; cylinder.v2[i] = circle.v2[i]; cylinder.v2[i+36] = circle.v2[i]+36; } for (int i = 73; i < 84; i++) { cylinder.v1[i] = (i-72) * 3; cylinder.v2[i] = cylinder.v1[i] + 36; } predef = new Hashtable(75); predef.put("polygon", polygon); predef.put("polygon_3d", polygon_3d); predef.put("lathe",lathe); predef.put("extrude",extrude); predef.put("scale",scale); predef.put("xscale",xscale); predef.put("yscale",yscale); predef.put("zscale",zscale); predef.put("translate",translate); predef.put("xtranslate",xtranslate); predef.put("ytranslate",ytranslate); predef.put("ztranslate",ztranslate); predef.put("rotate",rotate); predef.put("xrotate",xrotate); predef.put("yrotate",yrotate); predef.put("zrotate",zrotate); predef.put("xskew",xskew); predef.put("yskew",yskew); predef.put("xyshear",xyshear); predef.put("about",about); predef.put("aboutline",aboutline); predef.put("rgb",rgb); predef.put("hsb",hsb); predef.put("infinity",infinity); predef.put("define",define); predef.put("animate",animate); predef.put("background",background); predef.put("viewdistance",viewdistance); predef.put("line",line); predef.put("square",square); predef.put("circle",circle); predef.put("cube",cube); predef.put("cone",cone); predef.put("cylinder",cylinder); predef.put("red", Color.red); predef.put("green", Color.green); predef.put("blue", Color.blue); predef.put("black", Color.black); predef.put("white", Color.white); predef.put("gray", Color.gray); predef.put("darkgray", Color.darkGray); predef.put("lightgray", Color.lightGray); predef.put("cyan", Color.cyan); predef.put("magenta", Color.magenta); predef.put("yellow", Color.yellow); } // end of static initialization } // end of class Parser