/// <summary>Test the hard coded rules.
/// One rule is testet with the load function.</summary>
/// <param name="code">String to parse.</param>
/// <param name="markup">Expected markup from rule output.</param>
/// <param name="rules">List of rules to test. The first rule is loaded.</param>
public static void ParserLoadRule(List <Rule> rules, string code, string markup)
{
var parser = new Parser();
var outElements = new List <TextElement>();
TextBuffer buffer = Util.NewBufferWs(code);
parser.Rules = rules.Select(r => r.CloneForParse(buffer) as Rule).ToList();
ParserBuilder.InitializeGrammar(parser, parser.Rules, buffer.Status);
ParserBuilder.ValidateGrammar(parser, buffer.Status);
string syntax = parser.GetGrammar();
Rule rule = parser.Rules[0];
Assert.AreEqual(true, rule.Load(outElements, 0), string.Format("rule '{0}': cant read", rule.Name));
string actual = outElements[0].ToMarkupProtected(string.Empty);
Assert.AreEqual(markup, actual, "Equation TestOption: document fail");
}
/// <summary>Read from a text buffer and create a text document.</summary>
/// <param name="buffer">The text buffer.</param>
/// <returns>A text document, or null if error.</returns>
/// <exclude/>
internal CodeDocument ParseString(TextBuffer buffer)
{
if (buffer.Status.Error != null)
{
return(null);
}
List <Rule> procesRules = Rules.Select(r => r.CloneForParse(buffer) as Rule).ToList();
if (!ParserBuilder.InitializeGrammar(this, procesRules, buffer.Status))
{
return(null);
}
var elements = new List <TextElement>();
bool ok;
var resultDoc = new CodeDocument(elements, procesRules[0].Name);
try
{
// skip preceding white spaces and comments
buffer.FindNextWord(resultDoc.ChildNodes, false);
//buffer.InsertComments(elements);
ok = procesRules[0].Load(elements, 0);
buffer.FindNextWord(elements, false);
//buffer.InsertComments(elements);
}
catch (Exception e)
{
buffer.Status.AddException(e, () => MessageRes.itc12, e.Message);
return(null);
}
if (buffer.Status.Error != null)
{
return(null);
}
if (!ok)
{
buffer.Status.AddParseError(() => MessageRes.itc12, procesRules[0].Name);
}
else if (!buffer.IsEnd())
{
if (elements != null && elements.Count() > 0)
{
CodeElement last = elements.OfType <CodeElement>().Last();
string debug = last.ToMarkupProtected(string.Empty);
buffer.GetLoopLast(null);
procesRules[0].ResolveErrorsLast(last, 0);
}
buffer.Status.AddSyntaxErrorEof(() => MessageRes.itc13);
}
else if (elements.OfType <CodeElement>().Count() == 1)
{
resultDoc.AddRange(elements.OfType <CodeElement>().First().ChildNodes);
resultDoc.AddRange(elements.OfType <CommentElement>());
return(resultDoc);
}
else
{
buffer.Status.AddParseError(() => MessageRes.itc20, procesRules[0].Name);
}
return(null);
}