private void ProcessLine(IDocumentWriter writer, string line)
{
if (string.IsNullOrWhiteSpace(line))
{
return;
}
if (line.StartsWith("."))
{
// This is a control statement. Process it appropriately.
if (line.StartsWith(".bold"))
{
writer.SetFontStyle(FontStyle.Bold);
}
else if (line.StartsWith(".italic"))
{
writer.SetFontStyle(FontStyle.Italic);
}
else if (line.StartsWith(".regular"))
{
writer.SetFontStyle(FontStyle.NoStyle);
}
else if (line.StartsWith(".large"))
{
writer.SetFontSize(FontSize.Large);
}
else if (line.StartsWith(".normal"))
{
writer.SetFontSize(FontSize.Normal);
}
else if (line.StartsWith(".fill"))
{
writer.SetParagraphAlignment(ParagraphAlignment.Justified);
}
else if (line.StartsWith(".nofill"))
{
writer.SetParagraphAlignment(ParagraphAlignment.LeftAlign);
}
else if (line.StartsWith(".paragraph"))
{
writer.StartNewParagraph();
}
else if (line.StartsWith(".indent"))
{
// Parse out the indent value.
var indentValue = line.Substring(7).Trim();
if (int.TryParse(indentValue, out var indent))
{
writer.ChangeIndent(indent);
}
else
{
throw new Exception($"Invalid indent value '{indentValue}'");
}
}
else
{
throw new Exception($"Unrecognized control statement '{line}'");
}
}
else
{
// This is just text - write it.
writer.Write(line);
}
}