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Warnings: Track basic $-references
authorIan Jackson <ijackson@chiark.greenend.org.uk>
Sat, 28 Dec 2019 12:31:49 +0000 (12:31 +0000)
committerIan Jackson <ijackson@chiark.greenend.org.uk>
Mon, 30 Dec 2019 11:35:16 +0000 (11:35 +0000)
commit4d32a95729b7ae70fc1b65017cd26d22707ea33d
tree22bd26a0aed250a907fcb1c7b3f65701b4f6961ftree | snapshot
parent9ef44574417286a94e60170c358134392eb9034bcommit | diff
Warnings: Track basic $-references

We must always stop at $'s in the input now.

Having stopped at $, we normally just output it and carry on.  Ie, we
only stop so we can do some inspection: as before, we do this variable
tracking as inspection before processing, rather entangled with
processing.

We can deal reasonably properly with ${ } and $( ).

Signed-off-by: Ian Jackson <ijackson@chiark.greenend.org.uk>
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