public State(int initialState, TransitionData[] transitions)
{
int i;
int j;
UiExceptionHelper.CheckNotNull(transitions, "transitions");
UiExceptionHelper.CheckTrue(
transitions.Length == 8,
"expecting transitions.Length to be 8",
"transitions");
for (i = 0; i < transitions.Length; ++i)
{
for (j = 0; j < transitions.Length; ++j)
{
if (j == i)
{
continue;
}
if (transitions[j].Transition == transitions[i].Transition)
{
UiExceptionHelper.CheckTrue(false,
String.Format("transition '{0}' already present", transitions[j].Transition),
"transitions");
}
}
}
InitialState = initialState;
Transitions = transitions;
return;
}
public ErrorItem ToErrorItem()
{
UiExceptionHelper.CheckTrue(
_function != null,
"Cannot create instance of ErrorItem without a valid value in Function",
"Function");
return(new ErrorItem(_path, _function, _line));
}
/// <summary>
/// Registers an ICodeFormatter for the given language. The system
/// is not case sensitive.
/// </summary>
/// <param name="formatter">
/// A non null formatter.
/// </param>
/// <param name="language">
/// A non null file language.
/// The value must not be empty nor contain '.' and
/// must not have been already registered.
/// </param>
public void Register(ICodeFormatter formatter, string extension)
{
UiExceptionHelper.CheckNotNull(formatter, "formatter");
UiExceptionHelper.CheckNotNull(extension, "language");
extension = extension.ToLower();
UiExceptionHelper.CheckTrue(extension.Length > 0,
"language cannot be empty", "language");
UiExceptionHelper.CheckTrue(extension.LastIndexOf('.') == -1,
"language cannot contain '.'", "language");
UiExceptionHelper.CheckFalse(_toFormatter.ContainsKey(extension),
"language '" + extension + "' has already an handler. Remove handler first.",
"language");
_toFormatter.Add(extension, formatter);
return;
}
/// <summary>
/// Converts the given value into the matching ClassificationTag.
/// </summary>
private ClassificationTag _getTagFromByteValue(byte value)
{
switch (value)
{
case 0: return(ClassificationTag.Code);
case 1: return(ClassificationTag.Keyword);
case 2: return(ClassificationTag.Comment);
case 3: return(ClassificationTag.String);
default:
UiExceptionHelper.CheckTrue(false, "should not reach this code", "value");
break;
}
return(ClassificationTag.Code);
}
/// <summary>
/// An utility method that check data consistency. The operation
/// raises an exception if an error is found.
/// </summary>
public static void CheckData(FormattedCode data)
{
List <int> lines;
int line;
int bound;
int i;
UiExceptionHelper.CheckNotNull(data, "data");
UiExceptionHelper.CheckTrue(
data._codeInfo.IndexArray.Count == data._codeInfo.TagArray.Count,
"IndexArray.Count and TagArray.Count must match.",
"data");
bound = data._codeInfo.IndexArray.Count;
lines = data._codeInfo.LineArray;
for (i = 0; i < lines.Count; ++i)
{
line = lines[i];
UiExceptionHelper.CheckTrue(
line >= 0 && line < bound,
"Bad LineArray value at index " + i + ", value was: " + line + ", expected to be in: [0-" + bound + "[.",
"data");
if (i == 0)
{
continue;
}
UiExceptionHelper.CheckTrue(
lines[i] > lines[i - 1],
"Bad LineArray[" + i + "], value was: " + line + ", expected to be > than LineArray[" + (i - 1) + "]=" + lines[i - 1] + ".",
"data");
}
return;
}
/// <summary>
/// Build a new token and add it to the list of tokens known by TokenDictionary.
/// Tokens must be added from the longest text value to the shortest otherwise
/// an exception will be raised.
/// </summary>
/// <param name="value">
/// The token's text value. It must not be null nor empty. It must not be already
/// defined neither. If there are tokens already defined, value's length must not
/// be longer than the previous added token.
/// </param>
/// <param name="tag">The token's tag value.</param>
public void Add(string value, LexerTag tag)
{
InternalLexToken newToken;
UiExceptionHelper.CheckNotNull(value, "value");
UiExceptionHelper.CheckFalse(value == "",
"Token value must not be empty.", "value");
UiExceptionHelper.CheckFalse(
Contains(value),
String.Format("Token '{0}' is already defined.", value),
"value");
if (Count > 0)
{
UiExceptionHelper.CheckTrue(
_list[Count - 1].Text.Length >= value.Length,
"Tokens must be inserted from the longest to the shortest value.",
"value");
}
newToken = new InternalLexToken(value, tag);
// loop through each item to populate
// newToken.StartingWith list.
foreach (InternalLexToken item in _list)
{
if (item.Text.StartsWith(value))
{
newToken.StartingWith.Add(item);
}
}
_list.Add(newToken);
return;
}
