MooseParsedFunctionBase.C

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//* This file is part of the MOOSE framework
//* https://mooseframework.inl.gov
//*
//* All rights reserved, see COPYRIGHT for full restrictions
//* https://github.com/idaholab/moose/blob/master/COPYRIGHT
//*
//* Licensed under LGPL 2.1, please see LICENSE for details
//* https://www.gnu.org/licenses/lgpl-2.1.html
 
#include "MooseParsedFunctionBase.h"
 
// MOOSE includes
#include "InputParameters.h"
#include "MooseError.h"
#include "MooseParsedFunctionWrapper.h"
 
InputParameters
MooseParsedFunctionBase::validParams()
{
  InputParameters params = emptyInputParameters();
  params.addParam<std::vector<std::string>>(
      "symbol_names",
      "Symbols (excluding t,x,y,z) that are bound to the values provided by the corresponding "
      "items in the symbol_values vector.");
  params.addParam<std::vector<std::string>>(
      "symbol_values",
      "Constant numeric values, postprocessor names, function names, and scalar variables "
      "corresponding to the symbols in symbol_names.");
  return params;
}
 
MooseParsedFunctionBase::MooseParsedFunctionBase(const InputParameters & parameters)
  : _pfb_feproblem(*parameters.getCheckedPointerParam<FEProblemBase *>("_fe_problem_base")),
    _vars(parameters.get<std::vector<std::string>>("symbol_names")),
    _vals(parameters.get<std::vector<std::string>>("symbol_values"))
{
  if (_vars.size() != _vals.size())
    mooseError("Number of symbol_names must match the number of symbol_values!");
 
  // Loop through the variables assigned by the user and give an error if x,y,z,t are used
  for (const auto & var : _vars)
    if (var.find_first_of("xyzt") != std::string::npos && var.size() == 1)
      mooseError("The variables \"x, y, z, and t\" in the ParsedFunction are pre-declared for use "
                 "and must not be declared in \"symbol_names\"");
}
 
MooseParsedFunctionBase::~MooseParsedFunctionBase() {}
 
std::string
MooseParsedFunctionBase::verifyFunction(const std::string & function_str)
{
  // Throws an error if quotes are found
  if (function_str.find("\"") != std::string::npos)
    mooseError("The expression in ParsedFunction contains quotes which cannot be properly parsed");
 
  // Return the input equation (no error)
  return function_str;
}