// --------------------------- ScanNextWord -------------------------------
public static TextLinesWordCursor ScanNextWord(
TextLines Lines, TextLinesWordCursor CurrentWord)
{
TextLinesWordCursor res = null;
TextLinesCursor csr = null;
TextLinesScanResults sr = null;
// calc scan start position
csr = ScanWord_CalcStartBx(Lines, CurrentWord);
// advance past whitespace
if ((csr.Position != RelativePosition.None) &&
(csr.Position != RelativePosition.End))
{
sr = Lines.ScanNotEqual(
csr, CurrentWord.TextTraits.WhitespacePatterns,
ScannerEndOfLineConsider.ContinueScan);
csr = sr.Pos;
}
// got the start of something. scan for the delimeter ( could be the current char )
if (csr.Position == RelativePosition.At)
{
//ScanWord_IsolateWord(InBoundedString, Bx, ref results, InCurrentWord.TextTraits);
}
return(res);
}
// ----------------------- ScanWord_CalcStartBx ---------------------------
// calc start position from which to start scan to the next word.
private static TextLinesCursor ScanWord_CalcStartBx(
TextLines InLines, TextLinesWordCursor InWord)
{
// TextLinesNode linesNode = null;
TextLinesCursor bx = null;
switch (InWord.Position)
{
case RelativePosition.Begin:
bx = InLines.PosBgn();
break;
case RelativePosition.Before:
break;
case RelativePosition.After:
break;
case RelativePosition.End:
bx = InLines.PosEnd();
break;
case RelativePosition.None:
break;
case RelativePosition.At:
break;
default:
break;
}
return(bx);
}
public static TextLinesWordCursor ScanFirstWord(
TextLines InLines, TextTraits InTraits)
{
TextLinesWordCursor csr = new TextLinesWordCursor();
csr.Position = RelativePosition.Begin;
csr.TextTraits = InTraits;
TextLinesWordCursor res = ScanNextWord(InLines, csr);
return(res);
}
// -------------------- ScanWord_IsolatexWord ---------------------------
private static TextLinesWordCursor ScanWord_IsolatexWord(
TextLines InLines,
TextLinesCursor InBxCsr,
TextTraits InTraits)
{
TextLinesWordCursor tlwc = null;
TextLinesCursor csr = null;
TextLinesCursor endcsr = null;
ScanPatternResults spr = null;
csr = new TextLinesCursor(InBxCsr);
char ch1 = InBxCsr.CursorChar;
// look ahead to see if this word is braced.
if (IsOpenQuoteChar(ch1) == false)
{
spr =
ScanEqualAny(csr.LineData, csr.LineOx, csr.LineData.Length - 1, InTraits.NonWordPatterns);
}
else
{
spr = new ScanPatternResults(-1);
}
// the rule is only braced words can span multiple lines. so if the word is
// not braced, it can be parsed by the more general purpose IsolatexWord method.
if ((IsOpenQuoteChar(ch1) == true) ||
(InTraits.IsOpenBraceChar(spr.FoundChar.Value) == false))
{
ScanBoundedString bs = new ScanBoundedString(csr.LineData);
WordCursor wc = new WordCursor();
wc.SetTraits(InTraits);
ScanWord_IsolateWord(bs, csr.LineOx, ref wc, InTraits);
endcsr =
new TextLinesCursor(csr.LinesNode, wc.ScanEx, AcRelativePosition.At);
tlwc = new TextLinesWordCursor(wc, csr, endcsr);
}
else
{
}
return(tlwc);
}
