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Parser - a simple algebraic command parser
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Parser - a simple algebraic command parser
- new
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Return a reference to a new Parser object.
- variables
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- variables HASHREF
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If input is passed, then assign this input as the new value of variables. Return the current value of variables to teh caller.
- status
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- status INT
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If input is passed, then assign this input as the new value to the current status. Return the current status to the caller.
- statusIsValid
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Returns a boolean indicating whether or not the current status is 'valid.'
- statusToString
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Converts the current status value into its string representation and returns it.
- toString
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Return a string representing the internal state of the parser.
- setVariable NAME,VALUE
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Set the variable NAME to VALUE.
- getVariable NAME
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Return the value of variable NAME to the caller.
- haveVariable NAME
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Return a boolean indicating the existence of variable NAME.
- printConstant INFO
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Return a string representing the constant referred to by INFO.
- printVariable INFO
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Return a string representing the variable referred to by INFO.
- printCommand
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Return a string representing the results of the command referred to by INFO.
- doPrint
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Based on the block info, generate a string containing a printable value.
- doGBasis
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Calculate the Groebner Basis of p1,...,p2.
- doSPoly
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Calculate the S-Poly of p1 and p2.
- doMonLCM
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Calculate the monomial Least Common Multiple of p1 and p2.
- doReduce
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Attempt to reduce a polyomial to a simpler form.
- doGCD
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Determine the Greatest Common Divisor of p1 and p2, where p1 and p2 are single variabel polynomials.
- doMult
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Perform polynomial multiplication.
- doQuo
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Determine the quotient of p1 / p2, where p1 and p2 are single variable polynomials.
- doRem
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Determine the remainder of a p1 / p2.
- doNormalf
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Calculate the normal form of p1 / (p2,...,pn).
- doDivide
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Perform polynomial division.
- doSubtract
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Perform polynomial subtraction.
- doAdd
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Perform polynomial addition.
- doFunction
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Determine and execute a function as indicated by the block info.
- doMonomialOrdering
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Modify the monomial ordering.
- haveMonomialOrdering
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Return a boolean indicating the existence of a monomial ordering.
- doVariableOrdering
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Modify the variable ordering.
- haveVariableOrdering
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Return a boolean indicating the existence of a variable ordering.
- doVerbose
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Toggle the verbose state of the interpreter and and polynomials contained within.
- doState
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Generate a string representing the state of the variables in the interpreter.
- doValue
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See
value() in Language Commands.
- doAssignment
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Determine and assign a value to a variable.
- getBlockInfo
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Query a string to determine its nature relative to the parsing scheme and return the info.
- varToString VARNAME
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Retrieve the contents of VARNAME and convert the value into a string.
- parseLine STRING
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Parse the string as a command.
- parseCmdString STRING
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Isolate each command in STRING by parsing on ';', and then iterate through the list and call parseLine for each.
- parseCGICmdString STRING
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Operates almost identically to parseCmdString except that the resulting string is parsed, replacing each EOL with an HTML EOL.
- parseFile FILENAME
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Read a file and pass it to parseCmdString.
Brian Guarraci <bguarrac@hotmail.com>
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Parser - a simple algebraic command parser
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