public void DoublePercentIsIgnored()
{
String input = "\"" + @"some %% value" + "\"";
var parser = new FSharpStringScanner(input);
Assert.Equal(null, parser.Next());
}
public void VerbatimMeansIgnoreSequences()
{
String input = "@\"some string\\nescape\"";
var parser = new FSharpStringScanner(input);
Assert.Equal(null, parser.Next());
}
public void TripleQuoteMeansIgnoreSequences()
{
String input = "\"\"\"some string\\escape\"\"\"";
var parser = new FSharpStringScanner(input);
Assert.Equal(null, parser.Next());
}
public void PercentAtEndOfStringIsIgnored()
{
String input = "\"" + @"some %" + "\"";
var parser = new FSharpStringScanner(input);
Assert.Equal(null, parser.Next());
}
public void FormatSpecWithSpaceFlagsIsExtracted()
{
String input = "\"" + @"some % 8x value" + "\"";
var parser = new FSharpStringScanner(input);
Assert.Equal(new StringPart(6, 4, StringPartType.FormatSpecifier), parser.Next());
Assert.Equal(null, parser.Next());
}
public void FormatSpecWithFlagsWidthAndPrecisionIsExtracted()
{
String input = "\"" + @"some %-8.2f value" + "\"";
var parser = new FSharpStringScanner(input);
Assert.Equal(new StringPart(6, 6, StringPartType.FormatSpecifier), parser.Next());
Assert.Equal(null, parser.Next());
}
public void SimpleFormatSpecIsExtracted()
{
String input = "\"" + @"some %d value" + "\"";
var parser = new FSharpStringScanner(input);
Assert.Equal(new StringPart(6, 2, StringPartType.FormatSpecifier), parser.Next());
Assert.Equal(null, parser.Next());
}
public void UnicodeGraphShortIncompleteIsNotReturned()
{
String input = "\"" +
@"\u12some other stuff"
+ "\"";
var parser = new FSharpStringScanner(input);
Assert.Equal(null, parser.Next());
}
public void TwoDigitAfterBackslashNotConsideredTrigraph()
{
String input = "\"" +
@"\02abcd"
+ "\"";
var parser = new FSharpStringScanner(input);
Assert.Equal(null, parser.Next());
}
public void UnicodeGraphShortIsEscapeSequence()
{
String input = "\"" +
@"\u1234some other stuff"
+ "\"";
var parser = new FSharpStringScanner(input);
Assert.Equal(new StringPart(1, 6), parser.Next());
Assert.Equal(null, parser.Next());
}
public void NonEscapeSequenceIsNotHighlighted()
{
// regexp non-escape-chars = '\' [^"\'ntbrafv]
String input = "\"" +
@"\h\l"
+ "\"";
var parser = new FSharpStringScanner(input);
Assert.Equal(null, parser.Next());
}
public void UnicodeGraphLongIsEscapeSequence()
{
String input = "\"" +
@"\Uabcdef01some other stuff"
+ "\"";
var parser = new FSharpStringScanner(input);
Assert.Equal(new StringPart(1, 10), parser.Next());
Assert.Equal(null, parser.Next());
}
public void UnicodeGraphShortIncompleteIsNotReturned()
{
String input = "\"" +
@"\u12some other stuff"
+ "\"";
var parser = new FSharpStringScanner(input);
Assert.Equal(new StringPart(1, 3, StringPartType.EscapeSequenceError), parser.Next());
Assert.Equal(null, parser.Next());
}
public void TwoDigitAfterBackslashNotConsideredTrigraph()
{
String input = "\"" +
@"\02abcd"
+ "\"";
var parser = new FSharpStringScanner(input);
Assert.Equal(new StringPart(1, 2, StringPartType.EscapeSequenceError), parser.Next());
Assert.Equal(null, parser.Next());
}
public void NullCharReturnedAsEscapeSequence()
{
// \0
String input = "\"" +
@"\0||||\0"
+ "\"";
var parser = new FSharpStringScanner(input);
Assert.Equal(new StringPart(1, 2), parser.Next());
Assert.Equal(new StringPart(7, 2), parser.Next());
Assert.Equal(null, parser.Next());
}
public void TrigraphReturnedAsEscapeSequence()
{
// regexp trigraph = '\' digit-char digit-char digit-char
String input = "\"" +
@"\023\124"
+ "\"";
var parser = new FSharpStringScanner(input);
Assert.Equal(new StringPart(1, 4), parser.Next());
Assert.Equal(new StringPart(5, 4), parser.Next());
Assert.Equal(null, parser.Next());
}
public void NonEscapeSequenceIsMarkedAsError()
{
// regexp non-escape-chars = '\' [^"\'ntbrafv]
String input = "\"" +
@"\h\l"
+ "\"";
var parser = new FSharpStringScanner(input);
Assert.Equal(new StringPart(1, 2, StringPartType.EscapeSequenceError), parser.Next());
Assert.Equal(new StringPart(3, 2, StringPartType.EscapeSequenceError), parser.Next());
Assert.Equal(null, parser.Next());
}
public void SimpleEscapeSequences()
{
// regexp escape-char = '\' ["\'ntbrafv]
String input = "\"\\\"|" +
@"\\|\'|\n|\t|\b|\r|\a|\f|\v"
+ "\"";
var parser = new FSharpStringScanner(input);
Assert.Equal(new StringPart(1, 2), parser.Next());
Assert.Equal(new StringPart(4, 2), parser.Next());
Assert.Equal(new StringPart(7, 2), parser.Next());
Assert.Equal(new StringPart(10, 2), parser.Next());
Assert.Equal(new StringPart(13, 2), parser.Next());
Assert.Equal(new StringPart(16, 2), parser.Next());
Assert.Equal(new StringPart(19, 2), parser.Next());
Assert.Equal(new StringPart(22, 2), parser.Next());
Assert.Equal(new StringPart(25, 2), parser.Next());
Assert.Equal(new StringPart(28, 2), parser.Next());
Assert.Equal(null, parser.Next());
}
