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