private string[] GetTerms(string allterms)
{
int splitIndex = allterms.IndexOf(',');
if (splitIndex < 0)
{
return new string[] { allterms }
}
;
char[] startChars = new char[] { '(', '[', ',' };
int start = 0;
int len;
List <string> result = new List <string>();
while (start < allterms.Length)
{
int ss = allterms.IndexOfAny(startChars, start);
if (ss < 0)
{
string s = allterms.Substring(start).Trim();
if (s.Length > 0)
{
result.Add(s);
}
break;
}
if (allterms[ss] == ',')
{
// copy from start
len = ss - start;
string s = allterms.Substring(start, len).Trim();
if (s.Length > 0)
{
result.Add(s);
}
start = ss + 1;
continue;
}
int termend = Term.FindMatchingEnd(allterms[ss], allterms, ss);
len = termend - start + 1;
string su = allterms.Substring(start, len).Trim();
if (su.Length > 0)
{
result.Add(su);
}
start = termend + 1;
ss = allterms.IndexOfAny(startChars, start);
if (ss > 0)
{
start = ss + 1;
}
}
return(result.ToArray());
}
public Function(string src, int start, EquationElement root)
{
m_startIndex = start;
m_func = Term.ExtractName(src, start).ToLower();
start += m_func.Length;
// space는 무시, 다음문자는 무조건 괄호가 와야함.
while (src[start] == ' ')
{
start++;
}
if (src[start] != '(')
{
throw new ParseException(src, m_startIndex, "함수는 무조건 () 로 실행해야 합니다.'");
}
int termstart = start;
int end = Term.FindMatchingEnd('(', src, termstart);
if (end < termstart)
{
throw new ParseException(src, m_startIndex, "함수 매칭 실패");
}
m_endindex = end;
string allterms = src.Substring(termstart + 1, end - termstart - 1);
//string[] terms = allterms.Split(',');
string[] terms = GetTerms(allterms);
m_terms = new List <Term>();
foreach (string term in terms)
{
Term newterm = new Term();
newterm.Parse(term, root);
newterm.Parent = this;
m_terms.Add(newterm);
}
}