/// <summary>
/// Adds a block containing a procedure definition to the managed list. If a procedure
/// by that name is already defined, creates a new unique name for the procedure and renames the block.
/// </summary>
public void AddDefinition(Block block)
{
string procedureName = GetProcedureName(block);
if (string.IsNullOrEmpty(procedureName) || mProcedureDefinitions.ContainsKey(procedureName))
{
return;
}
procedureName = mNameMgr.GetDistinctName(procedureName);
SetProcedureName(block, procedureName);
mProcedureDefinitions.Add(procedureName, block);
mProcedureCallers.Add(procedureName, new List <Block>());
FireUpdate(new ProcedureUpdateData(((ProcedureMutator)block.Mutator).ProcedureInfo, block));
}
/// <summary>
/// Define a function to be included in the generated code.
/// The first time this is called with a given desiredName,
/// the code is saved and an actual name is generated.
/// Subsequent calls with the same desiredName have no effect but have the same return value.
/// It is up to the caller to make sure the same desiredName is not used for different code values.
/// The code gets output when Blockly.Generator.finish() is called.
/// </summary>
/// <param name="desiredName"></param>
/// <param name="code"></param>
/// <returns>The actual name of the new function. This may differ from desiredName if the former has already been taken by the user.</returns>
public string ProvideFunction(string desiredName, string code)
{
KeyValuePair <string, string> funcPair;
if (mFuncMap.TryGetValue(desiredName, out funcPair))
{
return(funcPair.Key);
}
string funcName = mVariableNames.GetDistinctName(desiredName);
string codeText = code.Replace(FUNCTION_NAME_PLACEHOLDER, funcName);
// Change all ' ' indents into the desired indent.
// To avoid an infinite loop of replacements, change all indents to '\0'
// character first, then replace them all with the indent.
// We are assuming that no provided functions contain a literal null char.
string oldCodeText = null;
while (!codeText.Equals(oldCodeText))
{
oldCodeText = codeText;
Regex regex = new Regex(@"^(( )*) ");
codeText = regex.Replace(codeText, "$1\0");
}
codeText = codeText.Replace("\0", this.Indent);
mFuncMap[desiredName] = new KeyValuePair <string, string>(funcName, codeText);
return(funcName);
}
