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AttributeCalculator.cs
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AttributeCalculator.cs
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// ********************************************************************************************************
// Product Name: DotSpatial.Symbology.Forms.dll
// Description: The Windows Forms user interface layer for the DotSpatial.Projections library.
//
// ********************************************************************************************************
// The contents of this file are subject to the MIT License (MIT)
// you may not use this file except in compliance with the License. You may obtain a copy of the License at
// http://dotspatial.codeplex.com/license
//
// Software distributed under the License is distributed on an "AS IS" basis, WITHOUT WARRANTY OF
// ANY KIND, either expressed or implied. See the License for the specific language governing rights and
// limitations under the License.
//
// The Original Code is DotSpatial.dll
//
// The Initial Developer of this Original Code is Kandasamy Prasanna. Created in 09/11/09.
//
// Contributor(s): (Open source contributors should list themselves and their modifications here).
// Name Date Comments
// --------------------------------------------------------------------------------------------------------
// Ted Dunsford | 9/11/2009 | Cleaned up the code conventions using re-sharper
// ********************************************************************************************************
using System;
using System.Collections.Generic;
using System.Linq;
using System.Windows.Forms;
using DotSpatial.Data;
namespace DotSpatial.Symbology.Forms
{
/// <summary>
/// A Dialog for performing calculations on attributes.
/// </summary>
public partial class AttributeCalculator : Form
{
private const double E = Math.E;
private string _expression;
private List<string> _fields = new List<string>();
private IFeatureSet _fs;
/// <summary>
/// this form will show to user to algebra calculation
/// with attribute fields and user can save it back in attribute Table.
/// </summary>
public AttributeCalculator()
{
InitializeComponent();
}
#region parameters
/// <summary>
/// set or get the Expression of computation.
/// </summary>
public string Expression
{
get { return _expression; }
set { _expression = value; }
}
/// <summary>
/// get or set dataset
/// </summary>
public IFeatureSet FeatureSet
{
get { return _fs; }
set { _fs = value; }
}
#endregion
#region Methods
/// <summary>
/// This will load the attribute field in Table Field.
/// </summary>
/// <param name="list"></param>
public void LoadTableField(List<string> list)
{
_fields = list;
comDestFieldComboBox.Items.Add("New Field");
foreach (string st in list)
{
lstViewFields.Items.Add(st + "\n");
comDestFieldComboBox.Items.Add(st);
}
}
/// <summary>
/// This will display the Expression in RichText box
/// </summary>
public void DisplyExpression()
{
rtxtComputaion.Text = _expression;
}
#endregion
/// <summary>
/// Occurs whenever the user Added new field to the Table
/// </summary>
public event EventHandler NewFieldAdded;
private void btnClose_Click(object sender, EventArgs e)
{
Hide();
}
private void btnClaculate_Click(object sender, EventArgs e)
{
string expression = rtxtComputaion.Text;
ParExp(expression);
}
private void btnPlus_Click(object sender, EventArgs e)
{
const string plus = " + ";
Expression = rtxtComputaion.Text;
Expression = Expression + plus;
DisplyExpression();
}
private void btnMinus_Click(object sender, EventArgs e)
{
const string minus = " - ";
Expression = rtxtComputaion.Text;
Expression = Expression + minus;
DisplyExpression();
}
private void btnMultiply_Click(object sender, EventArgs e)
{
const string times = " * ";
Expression = rtxtComputaion.Text;
Expression = Expression + times;
DisplyExpression();
}
private void btnDivide_Click(object sender, EventArgs e)
{
const string division = " / ";
Expression = rtxtComputaion.Text;
Expression = Expression + division;
DisplyExpression();
}
#region Expression Handle
/// <summary>
/// Tral: This will divide the string to relavent functions level
/// </summary>
/// <param name="exp"></param>
private void ParExp(string exp)
{
const string fun1Full = "Abs( Atan( Cos( Exp( Fix( Int( Ln( Log( Rnd( Sgn( Sin( Sqr( Cbr (Tan( Acos( Asin( " + "Cosh( Sinh( Tanh( Acosh( Asinh( Atanh( Fact( Not( Erf( Gamma( Gammaln( Digamma( Zeta( Ei( " + "csc( sec( cot( acsc( asec( acot( csch( sech( coth( acsch( asech( acoth( Dec( Rad( Deg( Grad(";
const string fun2Full = "Comb( Max( Min( Mcm( Mcd( Lcm( Gcd( Mod( And( Or( Xor( Beta( Root( Round( Nand( Nor( NXor(";
int numPart = 0;
char[] seperators = new[] { '[', ']', ' ', ',' };
string[] split = exp.Split(seperators, StringSplitOptions.None);
int noOfSplit = split.Count();
FunClass[] functionClsArr = new FunClass[noOfSplit]; //assign no of arg to no of split string
FunClass tempClass;
bool isFunctionEndingBracket = false;
string st;
for (int i = 0; i < noOfSplit; i++)
{
bool isField = false;
st = split[i];
st = st.Trim();
if (string.IsNullOrEmpty(st)) continue;
int num;
switch (st)
{
case (" "):
break;
case (","):
break;
case ("(")://process Open Bracket
case ("{"): numPart++;
break;
case (")")://process Closed Bracket
case ("}"):
{
if (st == ")" && i > 1)
{
//consider closing functions
//check it is normal closing bracket or function closing bracket
num = i;
for (int l = i - 1; l > -1; l--)
{
if (functionClsArr[l] != null)
{
num--;
if (functionClsArr[l] != null)
{
if (functionClsArr[l].NoOfArg == 1 && num == i - 2)
{
//mono function
isFunctionEndingBracket = true;
break;
}
if (functionClsArr[l].NoOfArg == 3 && num == i - 3)
{
//di function
isFunctionEndingBracket = true;
break;
}
}
}
}
}
if (isFunctionEndingBracket == false)
numPart -= 1;
else //No need to subtract
isFunctionEndingBracket = false;
if (numPart < 0)
throw new ArgumentException(SymbologyFormsMessageStrings.AttributeCalculator_TooManyClosingBrackets);
}
break;
case ("+"):
case ("-"):
string preSt = split[i - 1];
if (CheckExpo(preSt))
{
tempClass = new FunClass("exp", i) { PriorityLevel = 8 + numPart * 10 };
functionClsArr[i] = tempClass;
functionClsArr[i].NoOfArg = 1;
}
else
{
tempClass = new FunClass(st, i) { PriorityLevel = 2 + numPart * 10 };
functionClsArr[i] = tempClass;
functionClsArr[i].NoOfArg = 2;
}
break;
case ("*"):
case ("/"):
tempClass = new FunClass(st, i) { PriorityLevel = 3 + numPart * 10 };
functionClsArr[i] = tempClass;
functionClsArr[i].NoOfArg = 2;
break;
case ("^"):
tempClass = new FunClass(st, i) { PriorityLevel = 4 + numPart * 10 };
functionClsArr[i] = tempClass;
//functionClsArr[i].PreviousArgument = functionClsArr[i - 1].functionName;
//functionClsArr[i].NextArgument = functionClsArr[i + 1].functionName;
functionClsArr[i].NoOfArg = 2;
break;
case ("%"):
tempClass = new FunClass(st, i) { PriorityLevel = 4 + numPart * 10 };
functionClsArr[i] = tempClass;
functionClsArr[i].NoOfArg = 2;
break;
case ("!"):
tempClass = new FunClass("fact(", i) { PriorityLevel = 7 + numPart * 10 };
functionClsArr[i] = tempClass;
functionClsArr[i].NoOfArg = 1;
functionClsArr[i].NextArgument = functionClsArr[i - 1].FunctionName;
break;
case (";"):
//comes from bivariate function f(x;y)
break;
case ("|"):
//absolute symbol |.|
if (IsNumeric(split[i - 1]))
{
//ending absolte symbol
numPart--;
if (numPart < 0)
{
throw new ArgumentException(SymbologyFormsMessageStrings.AttributeCalculator_TooManyClosingBrackets);
}
}
else
{
//start absolute
numPart++;
tempClass = new FunClass(st, i) { PriorityLevel = numPart * 10 };
functionClsArr[i] = tempClass;
functionClsArr[i].NoOfArg = 1;
}
break;
case ("="):
case ("<"):
case (">")://Logical operators
tempClass = new FunClass(st, i) { PriorityLevel = 1 + numPart * 10 };
functionClsArr[i] = tempClass;
functionClsArr[i].NoOfArg = 2;
break;
case ("X"): //Not use full in practical
case ("x"):
case ("Y"):
case ("y"):
case ("Z")://monomial coeff.
case ("z")://Ex: 7x is converted into product 7*x
if (IsNumeric(split[i + 1]))
{
tempClass = new FunClass("*", i) { PriorityLevel = 3 + numPart * 10 };
functionClsArr[i] = tempClass;
functionClsArr[i].NoOfArg = 2;
}
break;
default:
if (IsNumeric(st))
{
//Check with Numeric number
if (st.IndexOf(")", st.Length - 1) == st.Length - 1 && st.Length > 1)
{
//this will check the following 24).closing bracket with out space in between
st = st.Remove(st.Length - 1, 1);
st = st.Trim();
//check it is normal closing bracket or function closing bracket
num = i;
for (int l = i - 1; l > -1; l--)
{
if (functionClsArr[l] != null)
{
num--;
if (functionClsArr[l] != null)
{
if (functionClsArr[l].NoOfArg == 1 && num == i - 1)
{
//mono function
isFunctionEndingBracket = true;
break;
}
if (functionClsArr[l].NoOfArg == 3 && num == i - 2)
{
//di function
isFunctionEndingBracket = true;
break;
}
}
}
}
if (isFunctionEndingBracket == false)
numPart--;
else
isFunctionEndingBracket = false;
}
tempClass = new FunClass(st, i) { PriorityLevel = 0 };
functionClsArr[i] = tempClass;
functionClsArr[i].NoOfArg = 0;
break;
}
if (st.IndexOf("(", 0) == 0 && st.Length > 1)
{
//this will check the following 24).starting bracket with out space in between
st = st.Remove(0, 1);
st = st.Trim();
numPart++;
tempClass = new FunClass(st, i) { PriorityLevel = 0 };
functionClsArr[i] = tempClass;
functionClsArr[i].NoOfArg = 0;
break;
}
if (fun1Full.ToLower().Contains(st.ToLower()))
{
//MonoVariable function
tempClass = new FunClass(st, i) { PriorityLevel = 9 + numPart * 10 };
functionClsArr[i] = tempClass;
functionClsArr[i].NoOfArg = 1;
break;
}
if (fun2Full.ToLower().Contains(st.ToLower()))
{
//BiVariable function
tempClass = new FunClass(st, i) { PriorityLevel = 9 + numPart * 10 };
functionClsArr[i] = tempClass;
functionClsArr[i].NoOfArg = 3; //mean it need to take next two arguments but in between ";" sysmbol
break;
}
foreach (string field in _fields)
{
if (st == field)
{
tempClass = new FunClass(st, i) { PriorityLevel = 0 };
functionClsArr[i] = tempClass;
functionClsArr[i].NoOfArg = 0;
isField = true;
break;
}
}
if (isField == false)
{
MessageBox.Show("Unrecognized format.");
return;
}
break;
}
}
int count = 0; //index after filtered
//sort the array.
List<FunClass> templist1 = new List<FunClass>();
foreach (FunClass funcls in functionClsArr)
{
if (funcls != null)
{
funcls.Index = count;
templist1.Add(funcls);
count++;
}
}
int noOfArr = templist1.Count;
//assign the relavent variables
for (int i = 0; i < noOfArr; i++)
{
if (templist1[i].NoOfArg == 1)
{
if (i < noOfArr - 1 && templist1[i].NextArgument == null)
templist1[i].NextArgument = templist1[i + 1].FunctionName;
}
else if (templist1[i].NoOfArg == 2)
{
if (i < noOfArr - 1)
templist1[i].NextArgument = templist1[i + 1].FunctionName;
if (i > 0)
templist1[i].PreviousArgument = templist1[i - 1].FunctionName;
}
else if (templist1[i].NoOfArg == 3)
{
//need to modify to handle continues two arguments
if (i < noOfArr - 2)
{
templist1[i].PreviousArgument = templist1[i + 1].FunctionName;
templist1[i].NextArgument = templist1[i + 2].FunctionName;
}
}
}
//sort according to Priority Level
for (int a = 1; a < noOfArr; a++)
{
if (templist1[a].PriorityLevel > templist1[a - 1].PriorityLevel)
{
//int b = a;
for (int c = a; c > 0; c--)
{
if (templist1[c].PriorityLevel > templist1[c - 1].PriorityLevel)
{
tempClass = templist1[c];
templist1[c] = templist1[c - 1];
templist1[c - 1] = tempClass;
}
}
}
}
//arrange operation next to previous priority level operation in same prority level oprations
for (int a = 2; a < noOfArr; a++)
{
if (templist1[a].PriorityLevel == templist1[a - 1].PriorityLevel && templist1[a].PriorityLevel > 0)
{
if (a > 1)
{
//At least 3 operations need, 1 higher prority and 2 same prorities
if (templist1[a - 2].Index > templist1[a].Index)
{
if (templist1[a].Index > templist1[a - 1].Index)
{
tempClass = templist1[a];
templist1[a] = templist1[a - 1];
templist1[a - 1] = tempClass;
}
}
else if (templist1[a - 2].Index < templist1[a].Index)
{
if (templist1[a].Index < templist1[a - 1].Index)
{
tempClass = templist1[a];
templist1[a] = templist1[a - 1];
templist1[a - 1] = tempClass;
}
}
}
}
}
//take selected destination field from combo box
int destinationCol = comDestFieldComboBox.SelectedIndex;
if (destinationCol == -1)
{
//set to new field if user not selected
destinationCol = 0;
}
if (destinationCol == 0)
{
//create new field
if (CreateNewColumn() == false)
{
return;
}
destinationCol = FeatureSet.DataTable.Columns.Count; //point the last field
}
//execute the equation through records
for (int i = 0; i < _fs.DataTable.Rows.Count; i++)
{
double finanalVal = 1.0;
string arg1;
if (noOfArr > 1)
{
for (int a = 0; a < noOfArr; a++)
{
if (templist1[a].NoOfArg == 0)
{
//check it is argument.
continue;
}
bool isField1 = false;
bool isField2 = false;
bool isArgAssign = false;
bool noNeedToAssign = false;
double argVal1 = 0.0;
double argVal2 = 0.0;
double val;
int colField1 = 0; //save the colum index of the field
if (templist1[a].NoOfArg == 1)
{
//mono argument function
arg1 = templist1[a].NextArgument;
if (IsNumeric(arg1) == false)
{
//Get the field from data Table
for (int j = 0; j < _fields.Count; j++)
{
if (arg1 == _fields[j])
{
colField1 = j;
isField1 = true;
break;
}
}
}
if (isField1)
{
argVal1 = Convert.ToDouble(_fs.DataTable.Rows[i][colField1]);
}
else if (IsNumeric(arg1))
{
argVal1 = Convert.ToDouble(arg1);
}
else
{
throw new ArgumentException(SymbologyFormsMessageStrings.AttributeCalculator_ParameterInvalid);
}
val = EvaluateFunction(GetTokenNo(templist1[a].FunctionName), argVal1, 0.0); //EXECUTE operation
templist1[a].Value = val;
finanalVal = finanalVal * val;
}
else
{
string arg2;
if ((templist1[a].NoOfArg == 2))
{
//operator
arg1 = templist1[a].PreviousArgument;
arg2 = templist1[a].NextArgument;
if (IsNumeric(arg1) == false)
{
//Get the field from data Table
for (int j = 0; j < _fields.Count; j++)
{
//check in the field of datatable
if (arg1 == _fields[j])
{
colField1 = j;
isField1 = true;
break;
}
}
}
if (a > 0)
{
//take the value from previous operation
for (int r = a; r > -1; r--)
{
//go through previous calculated functions
if (Equals(noNeedToAssign, true))
break;
if (templist1[a].Index > templist1[r].Index)
{
//check the prority in left side
for (int b = a; b < noOfArr; b++)
{
// this will check the rest operation that in between current and Previous prority operation
if (templist1[a].Index - 2 == templist1[b].Index && templist1[b].NoOfArg > 0)
{
noNeedToAssign = true;
break;
}
}
if (templist1[r].Value != 0 && noNeedToAssign == false)
{
argVal1 = templist1[r].Value;
isArgAssign = true;
break;
}
}
}
}
if (isField1 && isArgAssign == false)
argVal1 = Convert.ToDouble(_fs.DataTable.Rows[i][colField1]);
else if (IsNumeric(arg1) && isArgAssign == false)
argVal1 = Convert.ToDouble(arg1);
else if (isArgAssign == false)
{
throw new ArgumentException(SymbologyFormsMessageStrings.AttributeCalculator_ParameterInvalid);
}
isArgAssign = false; //reset flag
noNeedToAssign = false;
if (IsNumeric(arg2) == false)
{
//Get the field from data Table
//Caroso add code to determine the second field
int j = 0;
foreach (string t in _fields)
{
if (arg2 == t)
{
colField1 = j;
isField2 = true;
break;
}
j++;
}
}
if (a > 0)
{
//take the value from previous operation
for (int r = a; r > -1; r--)
{
//go through previous calculated functions
if (noNeedToAssign) break;
if (templist1[a].Index < templist1[r].Index)
{
//check the prority in right side
//Take only if it is next opration
for (int b = a; b < noOfArr; b++)
{
// this will check the rest operation that in between current and Previous prority operation
if (templist1[a].Index == templist1[b].Index - 2 && templist1[b].NoOfArg > 0)
{
noNeedToAssign = true;
break;
}
}
if (templist1[r].Value != 0 && noNeedToAssign == false)
{
argVal2 = templist1[r].Value;
isArgAssign = true;
break;
}
}
}
}
if (isField2 && isArgAssign == false)
argVal2 = Convert.ToDouble(_fs.DataTable.Rows[i][colField1]);
else if (IsNumeric(arg2) && isArgAssign == false)
argVal2 = Convert.ToDouble(arg2);
else if (isArgAssign == false)
{
argVal2 = 0.0;
}
//execute the operation
val = EvaluateFunction(GetTokenNo(templist1[a].FunctionName), argVal1, argVal2);
templist1[a].Value = val;
finanalVal = val;
}
else if ((templist1[a].NoOfArg == 3))
{
//di argument function
arg1 = templist1[a].PreviousArgument;
arg2 = templist1[a].NextArgument;
if (IsNumeric(arg1) == false)
{
//Get the field from data Table
for (int j = 0; j < _fields.Count; j++)
{
//check in the field of datatable
if (arg1 == _fields[j])
{
colField1 = j;
isField1 = true;
break;
}
}
}
if (isField1)
argVal1 = Convert.ToDouble(_fs.DataTable.Rows[i][colField1]);
else if (IsNumeric(arg1))
argVal1 = Convert.ToDouble(arg1);
else
{
throw new ArgumentException(SymbologyFormsMessageStrings.AttributeCalculator_ParameterInvalid);
}
if (IsNumeric(arg2) == false)
{
//Get the field from data Table
foreach (string t in _fields)
{
if (arg2 == t)
{
isField2 = true;
break;
}
}
}
if (isField2)
argVal2 = Convert.ToDouble(_fs.DataTable.Rows[i][colField1]);
else if (IsNumeric(arg2))
argVal2 = Convert.ToDouble(arg2);
else
{
throw new ArgumentException(SymbologyFormsMessageStrings.AttributeCalculator_ParameterInvalid);
}
//execute the operation
val = EvaluateFunction(GetTokenNo(templist1[a].FunctionName), argVal1, argVal2);
templist1[a].Value = val;
finanalVal = val;
}
}
}//loop through all operation
}
else if (noOfArr == 1 && templist1[0].NoOfArg == 0)
{
//Simple case only one variable or one argument
arg1 = templist1[0].FunctionName;
int colField1 = FindFieldInDataTable(arg1);
if (colField1 != -1)//Field inside the Table
finanalVal = Convert.ToDouble(_fs.DataTable.Rows[i][colField1]);
else if (IsNumeric(arg1))
finanalVal = Convert.ToDouble(arg1);
else
{
throw new ArgumentException(SymbologyFormsMessageStrings.AttributeCalculator_ParameterInvalid);
}
}
else
{
MessageBox.Show("There is no argument");
return;
}
//Save the final value to the field under attribute
if (_fs.DataTable.Columns[destinationCol - 1].DataType == typeof(double))
_fs.DataTable.Rows[i][destinationCol - 1] = finanalVal;
else if (_fs.DataTable.Columns[destinationCol - 1].DataType == typeof(string))
_fs.DataTable.Rows[i][destinationCol - 1] = Convert.ToString(finanalVal);
else if (_fs.DataTable.Columns[destinationCol - 1].DataType == typeof(int))
_fs.DataTable.Rows[i][destinationCol - 1] = Convert.ToInt32(finanalVal);
else
{
throw new ArgumentException(SymbologyFormsMessageStrings.AttributeCalculator_IncompatibleDestinationField);
}
} //Loop through records
//_fs.Save();
Hide();
// MessageBox.Show(MessageStrings.ToSave);
return;
}
/// <summary>
/// This will check and return the column index as given field name or -1 for not find.
/// </summary>
/// <param name="arg"></param>
/// <returns></returns>
private int FindFieldInDataTable(string arg)
{
for (int j = 0; j < _fields.Count; j++)
{
//check in the field of datatable
if (arg == _fields[j])
{
return j;
}
}
return -1;
}
private bool CreateNewColumn()
{
var addCol = new AddNewColum();
if (addCol.ShowDialog(this) == DialogResult.OK)
{
_fs.DataTable.Columns.Add(addCol.Name, addCol.Type);
OnNewFieldAdded();
return true;
}
return false;
}
/// <summary>
/// This will activate the NewFieldAdded event
/// </summary>
protected virtual void OnNewFieldAdded()
{
NewFieldAdded(this, EventArgs.Empty);
}
private void linkLabel1_LinkClicked(object sender, LinkLabelLinkClickedEventArgs e)
{
CalculatorUserGuide calUseGui = new CalculatorUserGuide();
calUseGui.ShowDialog();
}
#region Get Token Number
/// <summary>
/// this give the relavent token no
/// </summary>
/// <param name="subExp">Function Name</param>
/// <returns></returns>
private static int GetTokenNo(string subExp)
{
subExp = subExp.Trim();
int tok;
switch (subExp.ToLower())
{
case ("+"): tok = 0;
break;
case ("-"): tok = 1;
break;
case ("*"): tok = 2;
break;
case ("/"): tok = 3;
break;
case ("%"): tok = 4;
break;
//case ("\") : tok=5;
//break;
case ("^"): tok = 6;
break;
case ("abs("): tok = 7;
break;
case ("atan("): tok = 8;
break;
case ("cos("): tok = 9;
break;
case ("sin("): tok = 10;
break;
case ("exp("): tok = 11;
break;
//case ("exp(") : tok=12;
// break;
case ("fix("): tok = 13;
break;
case ("int("): tok = 14;
break;
case ("dec("): tok = 67;
break;
case ("ln("): tok = 15;
break;
case ("log("): tok = 16;
break;
case ("rnd("): tok = 17;
break;
case ("sgn("): tok = 18;
break;
case ("sqr("): tok = 19;
break;
case ("cbr("): tok = 65;
break;
case ("tan("): tok = 20;
break;
case ("acos("): tok = 21;
break;
case ("asin("): tok = 22;
break;
case ("cosh("): tok = 23;
break;
case ("sinh("): tok = 24;
break;
case ("tanh("): tok = 25;
break;
case ("acosh("): tok = 26;
break;
case ("asinh("): tok = 27;
break;
case ("atanh("): tok = 28;
break;
case ("root("): tok = 66;
break;
case ("mod("): tok = 29;
break;
case ("!"):
case ("fact("): tok = 30;
break;
case ("comb("): tok = 31;
break;
case ("min("): tok = 32;
break;
case ("max("): tok = 33;
break;
case ("gcd("):
case ("mcd("): tok = 34;
break;
case ("mcm("):
case ("lcm("): tok = 35;
break;
case (">"): tok = 36;
break;
case (">="):
case ("=>"): tok = 37;
break;
case ("<"): tok = 38;
break;
case ("<="):
case ("=<"): tok = 39;
break;
case ("="): tok = 40;
break;
case ("<>"): tok = 41;
break;
case ("and"): tok = 42;
break;
case ("or"): tok = 43;
break;
case ("not"): tok = 44;
break;
case ("xor"): tok = 45;
break;
case ("nand"): tok = 72;
break;
case ("nor"): tok = 73;
break;
case ("nxor"): tok = 74;
break;
case ("erf("): tok = 46;
break;
case ("gamma("): tok = 47;
break;
case ("gammaln("): tok = 48;
break;
case ("digamma("): tok = 49;
break;
case ("beta("): tok = 50;
break;
case ("zeta("): tok = 51;
break;
case ("ei("): tok = 52;
break;
case ("csc("): tok = 53;
break;
case ("sec("): tok = 54;
break;
case ("cot("): tok = 55;
break;
case ("acsc("): tok = 56;
break;
case ("asec("): tok = 57;
break;
case ("acot("): tok = 58;
break;
case ("csch("): tok = 59;
break;
case ("sech("): tok = 60;
break;
case ("coth("): tok = 61;
break;
case ("acsch("): tok = 62;
break;
case ("asech("): tok = 63;
break;
case ("acoth("): tok = 64;
break;
case ("rad("): tok = 68;
break;
case ("deg("): tok = 69;
break;
case ("grad("): tok = 71;
break;