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## Look Ahead Procedure

The Look Ahead procedure searches for all commands that define the measured path of the element, starting from the measured command without a path. These commands are:

- Move

- Movetf

- Probe

- Dist_Approach

Look Ahead stops when:

- A measured command has been detected.

- An indirect measured command (construction) has been detected.

- A tolerance command has been detected.

- An alignment command has been detected.

- A procedure call has been detected.

- An exec command has been detected. (external application execution)

The remaining Tutor commands are divided into two groups:

The commands of the first group finish the Look Ahead procedure.
This group consists of measured commands, indirect measured tolerances, alignments, procedures, execution of external programs (exec), chain, loop, end_loop, for, end_for, if, end_if and jump.
The commands of the second group are ignored by the look-head procedure.