Check for unknown labels in usage commands #177
Merged
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Because the
usage
command was checking the database in a single pass, it did not know about axioms after the current cursor, and was assuming that these axioms existed and were not used.However, this has the side effect of not being able to report unknown labels in usage commands.
This PR fixes this, and reports unknown labels in usage commands.
One test added.
This is a follow-up of #175: Following that PR, a missing space between two
usage
labels like in$j 'exel' avoids 'ax-10''ax-13';
will now be parsed as refering toax-10'ax-13
(doubled quote as escape). To be complete, the tool now needs to report this unknown label.