whole_func_string: function parse(code) {
      try {
          var labels = {};
          var root = [];
          var manager = new BlockManager();
  
          var lines = code.split('\n');
          for (var i = 0; i < lines.length; i++) {
              try {
                  var line = parseLine(lines[i].trim(), i, labels, false, manager);
                  if (line instanceof SyntaxError) throw createLineError(line, i);
                  if (line.error instanceof SyntaxError) throw createLineError(line.error, i);
                  root[i] = line;
              } catch (ex) {
                  throw createLineError(ex, i);
              }
          }
  
          return new AbstractSyntaxTree(root, labels, manager);
      } catch (ex) {
          return { "error": ex };
      }
  }
func_code_string: function parse(code) {
      try {
          var labels = {};
          var root = [];
          var manager = new BlockManager();
  
          var lines = code.split('\n');
          for (var i = 0; i < lines.length; i++) {
              try {
                  var line = parseLine(lines[i].trim(), i, labels, false, manager);
                  if (line instanceof SyntaxError) throw createLineError(line, i);
                  if (line.error instanceof SyntaxError) throw createLineError(line.error, i);
                  root[i] = line;
              } catch (ex) {
                  throw createLineError(ex, i);
              }
          }
  
          return new AbstractSyntaxTree(root, labels, manager);
      } catch (ex) {
          return { "error": ex };
      }
  }
func_documentation_string: Parses BASIC code and returns an abstract syntax tree
  
  @param {String} code
  @returns {AbstractSyntaxTree|{error: String}} The resulting AST