Package org.jmol.script

Class ScriptMathProcessor

  • public class ScriptMathProcessor
extends java.lang.Object

    • Field Detail

      • wasX

        public boolean wasX
        Reverse Polish Notation Engine for IF, SET, and @{...} -- Bob Hanson 2/16/2007 Just a (not so simple?) RPN processor that can handle boolean, int, float, String, Point3f, BitSet, Array, Hashtable, Matrix3f, Matrix4f hansonr@stolaf.edu

      • asBitSet

        public boolean asBitSet

      • oPt

        public int oPt

      • chk

        private boolean chk

      • wasSyntaxCheck

        private boolean wasSyntaxCheck

      • debugHigh

        private boolean debugHigh

      • oStack

        private T[] oStack

      • xStack

        private SV[] xStack

      • ifStack

        private char[] ifStack

      • ifPt

        private int ifPt

      • xPt

        private int xPt

      • parenCount

        private int parenCount

      • squareCount

        private int squareCount

      • braceCount

        private int braceCount

      • isArrayItem

        private boolean isArrayItem

      • asVector

        private boolean asVector

      • haveSpaceBeforeSquare

        private boolean haveSpaceBeforeSquare

      • equalCount

        private int equalCount

      • ptid

        private int ptid

      • ptx

        private int ptx

      • pto

        private int pto

      • isSpecialAssignment

        private boolean isSpecialAssignment

      • doSelections

        private boolean doSelections

      • assignLeft

        private boolean assignLeft

      • allowUnderflow

        private boolean allowUnderflow

      • isAssignment

        private boolean isAssignment

      • skipping

        private boolean skipping

      • lastAssignedString

        private SV lastAssignedString

    • Constructor Detail

      • ScriptMathProcessor

        ScriptMathProcessor​(ScriptExpr eval,
                    boolean isSpecialAssignment,
                    boolean isArrayItem,
                    boolean asVector,
                    boolean asBitSet,
                    boolean allowUnderflow,
                    java.lang.String key)
        Parameters:
        eval -
        isSpecialAssignment - x[n] = ...
        isArrayItem -
        asVector - return a Lst(SV) from getResult()
        asBitSet - return a (SV)bitset
        allowUnderflow - expression can terminate prior to end of statement
        key -

    • Method Detail

      • endAssignment

        public boolean endAssignment()

      • putX

        private void putX​(SV x)

      • putOp

        private void putOp​(T op)

      • putIf

        private void putIf​(char c)

      • addXCopy

        public boolean addXCopy​(SV x)

      • addX

        public boolean addX​(SV x)

      • addXObj

        public boolean addXObj​(java.lang.Object x)

      • addXStr

        public boolean addXStr​(java.lang.String x)

      • addXBool

        public boolean addXBool​(boolean x)

      • addXInt

        public boolean addXInt​(int x)

      • addXList

        public boolean addXList​(javajs.util.Lst<?> x)

      • addXMap

        public boolean addXMap​(java.util.Map<java.lang.String,​?> x)

      • addXM3

        public boolean addXM3​(javajs.util.M3 x)

      • addXM4

        public boolean addXM4​(javajs.util.M4 x)

      • addXFloat

        public boolean addXFloat​(float x)

      • addXBs

        public boolean addXBs​(BS bs)

      • addXPt

        public boolean addXPt​(javajs.util.P3 pt)

      • addXPt4

        public boolean addXPt4​(javajs.util.P4 pt)

      • addXAV

        public boolean addXAV​(SV[] x)

      • addXAD

        public boolean addXAD​(double[] x)

      • addXAS

        public boolean addXAS​(java.lang.String[] x)

      • addXAI

        public boolean addXAI​(int[] x)

      • addXAII

        public boolean addXAII​(int[][] x)

      • addXAF

        public boolean addXAF​(float[] x)

      • addXAFF

        public boolean addXAFF​(float[][] x)

      • isOpFunc

        private static boolean isOpFunc​(T op)

      • addOp

        public boolean addOp​(T op)
              throws ScriptException
        addOp The primary driver of the Reverse Polish Notation evaluation engine. This method loads operators onto the oStack[] and processes them based on a precedence system. Operands are added by addX() onto the xStack[]. We check here for syntax issues that were not caught in the compiler. I suppose that should be done at compilation stage, but this is how it is for now. The processing of functional arguments and (___?___:___) constructs is carried out by pushing markers onto the stacks that later can be used to fill argument lists or turn "skipping" on or off. Note that in the case of skipped sections of ( ? : ) no attempt is made to do syntax checking. [That's not entirely true -- when syntaxChecking is true, that is, when the user is typing at the Jmol application console, then this code is being traversed with dummy variables. That could be improved, for sure. Actually, there's plenty of room for improvement here. I did this based on what I learned in High School in 1974 -- 35 years ago! -- when I managed to build a mini FORTRAN compiler from scratch in machine code. That was fun. (This was fun, too.) -- Bob Hanson, hansonr@stolaf.edu 6/9/2009
        Parameters:
        op -
        Returns:
        false if an error condition arises
        Throws:
        ScriptException

      • checkSkip

        private boolean checkSkip​(T op,
                          int tok0)

      • doSelection

        private boolean doSelection()

      • dumpStacks

        void dumpStacks​(java.lang.String message)

      • getXTok

        public int getXTok()

      • isDecimal

        private boolean isDecimal​(SV x)

      • planeValue

        public javajs.util.P4 planeValue​(T x)

      • typeOf

        private static java.lang.String typeOf​(SV x)

      • getMatrix4f

        public static javajs.util.M4 getMatrix4f​(javajs.util.M3 matRotate,
                                         javajs.util.T3 vTranslate)

      • getBoundBox

        private boolean getBoundBox​(SV x2)