/// <summary>
/// Parse any string into an array of numbers with their optional unit markers.
/// </summary>
/// <param name="input"></param>
/// <param name="returnUnits"></param>
/// <param name="validunits"></param>
/// <param name="validSeparators"></param>
/// <returns></returns>
/// <remarks></remarks>
public static double[] ParseArrayOfNumbersWithUnits(string input, [Optional, DefaultParameterValue(null)] ref string[] returnUnits, string[] validunits = null, string validSeparators = ",x;:")
{
if (validunits is null)
{
validunits = new[] { "in", "mm", "'", "\"", "ft" };
}
var vc = validSeparators.ToCharArray();
int i;
int c;
var sb = new System.Text.StringBuilder();
var retVal = new List <double>();
var ru = new List <string>();
string s;
var exp = new MathExpressionParser();
input = input.ToLower();
c = vc.Count();
for (i = 1; i < c; i++)
{
input = input.Replace(vc[i], vc[0]);
}
var parse = TextTools.Split(input, vc[0].ToString());
c = parse.Count();
string su = null;
for (i = 0; i < c; i++)
{
s = parse[i].Trim();
s = StripUnit(s, ref su);
ru.Add(su);
string argErrorText = null;
retVal.Add(exp.ParseExpression(s, ErrorText: ref argErrorText));
}
returnUnits = ru.ToArray();
return(retVal.ToArray());
}
public bool ParseOperations(string value = null)
{
string[] st = null;
int i;
int c;
int n = 0;
string sFar;
MathExpressionParser objOp;
if (value == null)
{
value = m_Expression;
}
value = TextTools.OneSpace(TextTools.SpaceOperators(value.Trim()).ToLower());
m_Expression = value;
c = 0;
i = value.IndexOf("(");
if (i == -1)
{
i = value.IndexOf(")");
if (i != -1)
{
m_Error = "Unexpected closing parenthesis at column " + i;
return(false);
}
m_Value = ParseExpression(value, ref m_Error);
if (m_Value == default)
{
return(false);
}
return(true);
}
while (c < value.Length)
{
i = value.IndexOf("(", c);
if (i == -1)
{
Array.Resize(ref st, n + 1);
st[n] = "@" + value.Substring(c);
n += 1;
break;
}
Array.Resize(ref st, n + 1);
if (i - c > 0)
{
st[n] = "@" + value.Substring(c, i - c);
n += 1;
}
sFar = TextTools.Bracket(value, ref i, ref c);
Array.Resize(ref st, n + 1);
st[n] = sFar;
n += 1;
i = value.IndexOf("(", c);
}
sFar = "";
m_Col.Clear();
for (i = 0; i < n; i++)
{
ErrorText = "";
if (st[i].Substring(0, 1) == "@")
{
sFar += st[i].Substring(1);
objOp = new MathExpressionParser();
string argErrorText = null;
objOp.ParseExpression(sFar, ErrorText: ref argErrorText);
m_Col.Add(objOp);
}
else
{
objOp = new MathExpressionParser();
objOp.ParseOperations(st[i]);
if (!string.IsNullOrEmpty(objOp.ErrorText))
{
ErrorText = objOp.ErrorText;
return(false);
}
m_Col.Add(objOp);
sFar += " " + objOp.Value;
}
}
sFar = TextTools.OneSpace(TextTools.SpaceOperators(sFar.Trim()).ToLower());
double localParseExpression()
{
string argErrorText = ErrorText; var ret = ParseExpression(sFar, ref argErrorText); ErrorText = argErrorText; return(ret);
}
m_Value = localParseExpression();
if (!string.IsNullOrEmpty(ErrorText))
{
return(false);
}
return(true);
}
