30
To delete an instruction, select it in the left pane, then click the
Delete
button on the keypad. You can also highlight the text in
the right pane and cut/delete it.
Error Checking and Parsing
Each time you enter an instruction, Sequence checks the syntax for you. If an error is found, the icon for the errant instruction
will appear in red in the left pane. The program containing that instruction will also appear in red, as will the sequence containing
the program, and the Sequence icon itself, to help you quickly spot the problem.
In the example in
Figure 30
, the same label appears twice in the same program. Sequence has flagged this as an error.
Figure 30. An error like this repeated label is flagged in red all the way up the hierarchy
Though Sequence can help you debug syntactical errors, it cannot spot logical flaws in the way your sequence is structured. Good
programming practices should be applied to limit the number of errors and the length of the debugging process.
