User interface > Debugging and executing > Recognized token
A docking window of its own is a little box with information about the recognized last token and the next token found.
If a TETRA program is executed step-by-step, in this little table in the first row the current recognized token and in the second row the found next token are shown. As soon, as the node, which represents the found token is left, the found token is accepted and becomes the recognized token. At the same time the next token is evaluated.
Special cases are the SKIP-nodes. As soon as a SKIP-alternative was chosen, also the token, which follow the SKIP-node is known. It is shown in the third line of the table.
The combo box above of the token table contains a list of all tokens, on which the actual parsed productions are depending. For each of these tokens the name, symbol number and regular definition is displayed.