public Exception Error(string message)
{
var startPos = AtEnd ? _tokens[_index - 1].EndPos : _tokens[_index].StartPos;
var endPos = AtEnd ? _tokens[_index - 1].EndPos : _tokens[_index].EndPos;
var programWithLines = new ProgramWithLines(_program);
return(new JsonMasherException(
message,
programWithLines.GetLineNumber(startPos) + 1,
programWithLines.GetColumnNumber(startPos) + 1,
PositionHighlighter.Highlight(programWithLines, startPos, endPos)));
}
internal Exception Error(
string message,
int? positionNullable = null,
int? lengthNullable = null,
Exception ex = null)
{
var position = positionNullable == null ? _index : positionNullable.Value;
var length = lengthNullable == null ? 1 : lengthNullable.Value;
var programWithLines = new ProgramWithLines(_program);
return new JsonMasherException(
message,
programWithLines.GetLineNumber(position) + 1,
programWithLines.GetColumnNumber(position) + 1,
PositionHighlighter.Highlight(programWithLines, position, position + length),
ex);
}
public void ProgramHighlighterTests()
{
// Arrange
// Act
var result = PositionHighlighter.Highlight(@"line1
line2
line4
line5".CleanCR(), 2, 20);
// Assert
result.CleanCR().Should().Be(@"Line 1: line1
Line 1: ^^^
Line 2: line2
Line 2: ^^^^^
Line 4: line4
Line 4: ^^^^^
Line 5: line5
Line 5: ^
".CleanCR());
}
