/// <summary>
/// scan from the current cursor position, from line to line, until
/// a char not equal any of the pattern chars is found.
/// </summary>
/// <param name="InCsr"></param>
/// <param name="InNotEqualChars"></param>
/// <returns></returns>
public TextLinesScanResults ScanNotEqual(
TextLinesCursor InCsr,
ScanPatterns InNotEqualPatterns,
ScannerEndOfLineConsider InEolConsider)
{
ScanPatternResults res;
TextLinesScanResults rv = new TextLinesScanResults();
TextLinesCursor csr = Scanner_InitialCursorSetup(this, InCsr);
while (true)
{
if ((csr.Position == RelativePosition.End) ||
(csr.Position == RelativePosition.None))
{
csr.Position = RelativePosition.None;
rv.Pos = csr;
rv.WhatFound = ScannerWhatFound.NotFound;
break;
}
int ex = csr.LinesNode.Value.LineData.Length - 1;
res = Scanner.ScanNotEqual(
csr.LinesNode.Value.LineData, csr.LineOx, ex,
InNotEqualPatterns);
// a char not equal to the pattern chars is found.
if (res.FoundPos >= 0)
{
csr.LineOx = res.FoundPos;
rv.Pos = csr;
rv.WhatFound = ScannerWhatFound.PatternChar;
break;
}
else if (InEolConsider == ScannerEndOfLineConsider.Found)
{
csr.LineOx = -1;
rv.Pos = csr;
rv.WhatFound = ScannerWhatFound.HardLineBreak;
break;
}
else
{
csr.LineAdvance(this);
}
}
return(rv);
}
/// <summary>
/// Scan forward in TextLines until char equal any of the pattern chars.
/// </summary>
/// <param name="InCsr"></param>
/// <param name="InPatternChars"></param>
/// <param name="InEolConsider"></param>
/// <returns></returns>
public TextLinesScanResults ScanEqualAny(
TextLinesCursor InCsr,
char[] InPatternChars,
ScannerEndOfLineConsider InEolConsider)
{
TextLinesScanResults rv = new TextLinesScanResults();
Scanner.ScanCharResults res;
TextLinesCursor csr = Scanner_InitialCursorSetup(this, InCsr);
while (true)
{
if ((csr.Position == RelativePosition.End) ||
(csr.Position == RelativePosition.None))
{
csr.Position = RelativePosition.None;
rv.Pos = csr;
rv.WhatFound = ScannerWhatFound.NotFound;
break;
}
res = Scanner.ScanEqualAny(
csr.LineData, csr.LineOx, InPatternChars);
// char is found.
if (res.ResultPos >= 0)
{
csr.LineOx = res.ResultPos;
rv.Pos = csr;
rv.WhatFound = ScannerWhatFound.PatternChar;
break;
}
else if (InEolConsider == ScannerEndOfLineConsider.Found)
{
csr.LineOx = -1;
rv.Pos = csr;
rv.WhatFound = ScannerWhatFound.HardLineBreak;
break;
}
csr.LineAdvance(this);
}
return(rv);
}
