/// <summary>
/// Scan for keyword followed by enclosign parenthesis.
/// Return the string within the encoding paren.
/// Return null if keyword is not found.
/// </summary>
/// <param name="InText"></param>
/// <param name="InKwd"></param>
/// <returns></returns>
public static string ScanParenEnclosedValue(this string InText, string InKwd)
{
string foundValue = null;
string findText = InKwd + "(";
int fx = InText.IndexOf(findText);
if (fx >= 0)
{
int braceBx = fx + InKwd.Length;
int ex = Scanner.ScanCloseBrace(InText, braceBx);
if (ex >= 0)
{
int valueBx = braceBx + 1;
int valueLx = ex - valueBx;
if (valueLx > 0)
{
foundValue = InText.Substring(valueBx, valueLx).Trim();
}
else
{
foundValue = "";
}
}
}
return(foundValue);
}
/// <summary>
/// Examine the string for its WordClassification content.
/// </summary>
/// <param name="InWord"></param>
/// <param name="InTraits"></param>
/// <returns></returns>
public static CharObjectPair CalcWordClassification(
string InWord, TextTraits InTraits)
{
int Fx = 0, Ix = 0;
WordClassification wc = WordClassification.None;
char braceChar = ' ';
char ch1 = AcCommon.PullChar(InWord, 0);
int Ex = InWord.Length - 1;
// is quoted. the word runs to the closing quote.
if (Scanner.IsOpenQuoteChar(ch1) == true)
{
Ix = Scanner.ScanCloseQuote(InWord, 0, InTraits.QuoteEncapsulation);
if (Ix == Ex)
{
wc = WordClassification.Quoted;
}
else
{
wc = WordClassification.MixedText;
}
}
// check if the string is a Braced or NameBraced word.
if (wc == WordClassification.None)
{
char[] combo = AcCommon.Concat(InTraits.DelimChars, InTraits.BraceChars);
Scanner.ScanCharResults results = Scanner.ScanEqual(InWord, 0, combo);
Fx = results.ResultPos;
ch1 = results.ResultChar;
// found a brace char
if ((InTraits.IsOpenBraceChar(ch1) == true) &&
(InTraits.IsDelimChar(ch1) == false))
{
Ix = Scanner.ScanCloseBrace(InWord, Fx);
if (Ix == Ex)
{
braceChar = ch1;
if (Fx == 0)
{
wc = WordClassification.Braced;
}
else
{
wc = WordClassification.NameBraced;
}
}
}
}
// word is all delimeter.
if (wc == WordClassification.None)
{
Fx = Scanner.ScanNotEqual(InWord, 0, InTraits.DelimChars).a;
if (Fx >= 0)
{
wc = WordClassification.Delimeter;
}
}
// check if a numeric string.
if (wc == WordClassification.None)
{
char[] digitChars =
new char[] { '0', '1', '2', '3', '4', '5', '6', '7', '8', '9', '.', '+', '-' };
Fx = Scanner.ScanNotEqual(InWord, 0, digitChars).a;
if (Fx == -1)
{
wc = WordClassification.Numeric;
try
{
double vx = double.Parse(InWord);
}
catch (Exception)
{
wc = WordClassification.None;
}
}
}
// any delim chars in the string. if not, the string is a name. otherwise, it is
// mixed.
if (wc == WordClassification.None)
{
Fx = Scanner.ScanEqual(InWord, 0, InTraits.DelimChars).a;
if (Fx == -1)
{
wc = WordClassification.Name;
}
else
{
wc = WordClassification.MixedText;
}
}
return(new CharObjectPair(braceChar, wc));
}