//Runs an Algo script, given a file path.
public void RunAlgoScript(string path, string newScopeName = "")
{
//Read the entire text file into a lexer and tokens.
string input = File.ReadAllText(path);
var chars = new AntlrInputStream(input);
var lexer = new algoLexer(chars);
var tokens = new CommonTokenStream(lexer);
//Parse the file.
var parser = new algoParser(tokens);
parser.BuildParseTree = true;
var tree = parser.compileUnit();
//Set the currently loaded file.
FileInfo fi = new FileInfo(path);
string oldFile = AlgoRuntimeInformation.FileLoaded;
AlgoRuntimeInformation.FileLoaded = fi.Name;
//If this is being placed in a separate scope, switch out now.
AlgoScopeCollection oldScope = null;
if (newScopeName != "")
{
oldScope = Scopes;
Scopes = new AlgoScopeCollection();
}
//Visit this tree, and fully execute.
VisitCompileUnit(tree);
//Set the currently loaded file back.
AlgoRuntimeInformation.FileLoaded = oldFile;
//If it was executed in a separate scope, save as a library with this name.
if (newScopeName != "")
{
AlgoScopeCollection importScope = Scopes;
Scopes = oldScope;
Scopes.AddLibrary(newScopeName, importScope);
}
}
