public CommandProcessingResult ProcessCommand(CommandContext context)
{
var position = context.ArgumentsStartPosition;
var source = context.CommandSource;
if (position == source.Length)
{
throw new TexParseException("illegal end!");
}
var cellsSource = TexFormulaParser.ReadElement(source, ref position);
var matrixSource = context.CommandSource.Segment(
context.CommandNameStartPosition,
position - context.CommandNameStartPosition);
var cells = ReadMatrixCells(context.Parser, context.Formula, cellsSource, context.Environment);
var matrix = new MatrixAtom(matrixSource, cells, _cellAlignment);
SymbolAtom GetDelimiter(string name) =>
name == null
? null
: TexFormulaParser.GetDelimiterSymbol(name, null) ??
throw new TexParseException($"The delimiter {name} could not be found");
var leftDelimiter = GetDelimiter(_leftDelimiterSymbolName);
var rightDelimiter = GetDelimiter(_rightDelimiterSymbolName);
var atom = leftDelimiter == null && rightDelimiter == null
? (Atom)matrix
: new FencedAtom(
matrixSource,
matrix,
leftDelimiter,
rightDelimiter);
return(new CommandProcessingResult(atom, position));
}
public void AddEmbraced(TexFormula formula, string leftSymbol, string rightSymbol) => Add(new FencedAtom(formula?.RootAtom, TexFormulaParser.GetDelimiterSymbol(leftSymbol),
TexFormulaParser.GetDelimiterSymbol(rightSymbol)));