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| author | Kaz Kylheku <kaz@kylheku.com> | 2022-09-08 18:36:12 -0700 |
|---|---|---|
| committer | Kaz Kylheku <kaz@kylheku.com> | 2022-09-08 18:36:12 -0700 |
| commit | 6fb34ff4e32cab93f437ed6c3d93042b87024437 (patch) | |
| tree | 1518d00a53b217075ec432f7d6125d1c3ffefab6 /tests/012 | |
| parent | 9083d40bfb936f58e09940e4a987ca7d341d7650 (diff) | |
| download | txr-6fb34ff4e32cab93f437ed6c3d93042b87024437.tar.gz txr-6fb34ff4e32cab93f437ed6c3d93042b87024437.tar.bz2 txr-6fb34ff4e32cab93f437ed6c3d93042b87024437.zip | |
syntax: read and print [. x] and [. @x].
* lib.c (obj_print_impl): Handle (dwim . atom) syntax
by printing [. atom]. Note that (dwim . @var)
and (dwim . @(expr)) already print as [. @var]
and [. @(expr)]; this is not new. But none of these
forms are supported by reading without the
accompanying change to the parser.
* parser.y (dwim): Handle the [. expr] and [ . expr]
syntax, so that forms like [. a] and [. @a] have
print-read consistency. The motivation is to be
able to [. @args] in pattern matching to match a
DWIM forms; I tried that and was surprised to have it
blow up in my face.
* tests/012/readprint.tl: New test file. Future
printer/parser changes will be tested here. Historically,
changes to the syntax have not been consistently
unit-tested.
* y.tab.c.shipped: Regenerated.
Diffstat (limited to 'tests/012')
| -rw-r--r-- | tests/012/readprint.tl | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/tests/012/readprint.tl b/tests/012/readprint.tl new file mode 100644 index 00000000..cf70320a --- /dev/null +++ b/tests/012/readprint.tl @@ -0,0 +1,7 @@ +(load "../common") + +(mstest + '[ . a] "[. a]" + '[. a] "[. a]" + '[ . @a] "[. @a]" + '[. @a] "[. @a]") |