public static EntityReferenceParseResult Parse(string entityRef)
{
var tokens = RuleLexer.Analyse(entityRef ?? string.Empty);
var firstErr = tokens.FirstOrDefault(t => t.TokenType == ApplyIfTokenType.Error);
if (firstErr != null)
{
var lexingError = $@"""{firstErr.Text}"" is not a valid token.";
var name = new EntityReferenceParseResult(lexingError);
return(name);
}
var rule = PerformParse(tokens, out var error);
if (!string.IsNullOrWhiteSpace(error))
{
return(new EntityReferenceParseResult(error));
}
return(rule);
}
internal static ApplyIfRule Parse(string applyIfSpec)
{
var tokens = RuleLexer.Analyse(applyIfSpec ?? string.Empty);
var firstErr = tokens.FirstOrDefault(t => t.TokenType == ApplyIfTokenType.Error);
if (firstErr != null)
{
var lexingError = $@"""{firstErr.Text}"" is not a valid token.";
var name = new ApplyIfRule(new ApplyIfRuleErrorClause($"ApplyIf rule could not be interpreted. (\"{firstErr.Text}\" is not valid.)"));
name.FailedParse(lexingError);
return(name);
}
var rule = PerformParse(tokens, out var error);
if (!string.IsNullOrWhiteSpace(error))
{
rule.FailedParse(error);
}
return(rule);
}
