[Bug 1911676] Re: Short pattern not terminated by ~ or !

[Launchpad Bug Tracker]

This bug was fixed in the package apt - 2.0.4

---------------
apt (2.0.4) focal; urgency=medium

  [ Julian Andres Klode ]
  * Merge 2.0.2ubuntu0.1 and 2.0.2ubuntu0.2 security updates with 2.0.3
    release.
  * pkgnames: Correctly set the default for AllNames to false, and do not
    exclude virtual packages if --all-names is specified (LP: #1876495)
  * Remove expired domain that became nsfw from debian/changelog
  * patterns: Terminate short pattern by ~ and ! (LP: #1911676)
  * Improve immediate configuration handling (LP: #1871268)
    - Do not immediately configure m-a: same packages in lockstep
    - Ignore failures from immediate configuration. This does not change the
      actual installation ordering - we never passed the return code to the
      caller and installation went underway anyway if it could be ordered at a
      later stage, this just removes spurious after-the-fact errors.

  [ JCGoran ]
  * Fix "extended_states" typo in apt-mark(8) (Closes: #969086)

apt (2.0.3) focal; urgency=medium

  [ Frans Spiesschaert ]
  * Dutch manpages translation update (Closes: #956313)

  [ David Kalnischkies ]
  * Add correct std namespace to nullptr_t

  [ Julian Andres Klode ]
  * Reinstate * wildcards (Closes: #953531) (LP: #1872200)
  * apt list: Fix behavior of regex vs fnmatch vs wildcards
  * debian/gbp.conf: We're in the 2.0.y branch
  * CI: Test on ubuntu:focal, not debian:unstable

 -- Julian Andres Klode <juliank at ubuntu.com>  Thu, 14 Jan 2021 12:49:00
+0100

** Changed in: apt (Ubuntu Focal)
       Status: Fix Committed => Fix Released

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https://bugs.launchpad.net/bugs/1911676

Title:
  Short pattern not terminated by  ~ or !

Status in apt package in Ubuntu:
  Fix Released
Status in apt source package in Focal:
  Fix Released
Status in apt source package in Groovy:
  Fix Released

Bug description:
  [Impact]

  Short patterns like ~nfoo!~nbar or ~nfoo~nbar do not work correctly -
  they are treated as ?name(foo!~nbar) / ?name(foo~nbar) rather than
  ?name(foo)?not(?name(bar)) / ?name(foo)?name(bar)

  [Test Case]
  Unit tests have been added that are run during build and check they are parsed correctly

  +   EXPECT_PATTERN_EQ("~napt~nfoo", "?and(?name(apt),?name(foo))");
  +   EXPECT_PATTERN_EQ("~napt!~nfoo", "?and(?name(apt),?not(?name(foo)))");

  [Where problems could occur]
  Really just changing a string constant for this change in a function that parses of words, so well, the only problem arising could be that words inside patterns are recognized wrongly.

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