IsolateQuotedWord(
ScanStream ScanStream,
TextTraits Traits,
int Bx)
{
LiteralType litType = LiteralType.none;
string litText = null;
char ch1 = ScanStream.Stream[Bx];
ScanPattern foundPat = null;
int foundIx = -1;
int quoteEx = -1;
// is start of a verbatim string literal
if ((Traits.VerbatimLiteralPattern != null) &&
(Traits.VerbatimLiteralPattern.Match(ScanStream.Stream, Bx)))
{
var rv = VerbatimLiteral.ScanCloseQuote(
ScanStream.Stream, Traits.VerbatimLiteralPattern, Bx);
quoteEx = rv.Item1;
litText = rv.Item2;
litType = LiteralType.VerbatimString;
}
// is a quoted literal
else if (Traits.IsQuoteChar(ch1) == true)
{
quoteEx = Scanner.ScanCloseQuote(ScanStream.Stream, Bx, Traits.QuoteEncapsulation);
if (quoteEx != -1)
{
int lx = quoteEx - Bx + 1;
litText = ScanStream.Substring(Bx, lx);
// correct the following at some point. Should be either string or
// char lit.
litType = LiteralType.String;
}
}
// isolate the delim that follows that quoted word.
{
int bx = quoteEx + 1;
var rv = Scanner.ScanEqualAny(ScanStream.Stream, bx, Traits.DelimPatterns);
foundPat = rv.Item1;
foundIx = rv.Item2;
}
return(new Tuple <LiteralType, string, ScanPattern, int>(
litType, litText, foundPat, foundIx));
}
IsolateQuotedWord(
string Text, int Bx, TextTraits Traits)
{
ScanPatternResults spr = null;
int? ex = null;
string wordText = null;
char ch1 = Text[Bx];
LiteralType litType = LiteralType.none;
// is start of a verbatim string literal
if ((Traits.VerbatimLiteralPattern != null) &&
(Traits.VerbatimLiteralPattern.Match(Text, Bx)))
{
var rv = VerbatimLiteral.ScanCloseQuote(
Text, Traits.VerbatimLiteralPattern, Bx);
ex = rv.Item1;
wordText = rv.Item2;
litType = LiteralType.VerbatimString;
}
// is a quoted literal
else if (Traits.IsQuoteChar(ch1) == true)
{
ex = Scanner.ScanCloseQuote(Text, Bx, Traits.QuoteEncapsulation);
if (ex.Value != -1)
{
int lx = ex.Value - Bx + 1;
wordText = Text.Substring(Bx, lx);
// correct the following at some point. Should be either string or
// char lit.
litType = LiteralType.String;
}
}
// not a quoted literal
if ((ex == null) || (ex.Value == -1))
{
throw (new ApplicationException(
"Closing quote not found starting at position " +
Bx.ToString() + " in " + Text));
}
else
{
// setup the non word which follows the closing quote.
int ix = ex.Value + 1;
if (Text.IsPastEnd(ix))
{
spr = new ScanPatternResults(-1);
}
else
{
// the char that follows the closing quote must be a delim
int remLx = Text.Length - ix;
spr = Scanner.ScanEqualAny(Text, ix, remLx, Traits.NonWordPatterns);
if (spr.FoundPos != ix)
{
throw new ApplicationException(
"invalid char follows close quote at pos " + ix.ToString() +
" in " + Stringer.Head(Text, 80));
}
}
}
return(new Tuple <int, int?, string, LiteralType, ScanPatternResults>
(Bx, ex, wordText, litType, spr));
}