[Bug 2047926] Re: vim Matchit's parentheses matching function breaks in tex files

[Geoff Adelbloom]

** Summary changed:

- matchit vim matching parentheses tex files
+ vim Matchit's parentheses matching function breaks in tex files

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Title:
  vim Matchit's parentheses matching function breaks in tex files

Status in vim package in Ubuntu:
  New

Bug description:
  ** lsb_release -rd
  Description:	Ubuntu 22.04.3 LTS
  Release:	22.04

  **apt-cache policy vim
  vim:
    Installed: 2:8.2.3995-1ubuntu2.15
    Candidate: 2:8.2.3995-1ubuntu2.15
    Version table:
   *** 2:8.2.3995-1ubuntu2.15 500
          500 http://de.archive.ubuntu.com/ubuntu jammy-updates/main amd64 Packages
          500 http://security.ubuntu.com/ubuntu jammy-security/main amd64 Packages
          100 /var/lib/dpkg/status
       2:8.2.3995-1ubuntu2 500
          500 http://de.archive.ubuntu.com/ubuntu jammy/main amd64 Packages

  
  **The functionality of the package 'Matchit' that is shipped with vim 8.2 is broken for .tex files.

  **Minimal example:
  The file test.tex contains the following text:

  (hello)

  
  **Expected behavior: when the cursor is placed on the '(' character, a keyboard press of the '%' button should take the cursor to the ')' character. 

  **Faulty behavior: instead, an error message pops up, saying:

  Error detected while processing function matchit#Match_wrapper[161]..<SNR>65_Par
  seSkip:
  line   10:
  E488: Trailing characters: . strpart(skip,2). "'"
  Error detected while processing function matchit#Match_wrapper:
  line  174:
  E121: Undefined variable: r
  line  176:
  E121: Undefined variable: r

  **Possible solution: replace the file
  /usr/share/vim/vim82/pack/dist/opt/matchit/autoload/matchit.vim with
  the newest version of matchit.vim (commit 9c1c78e,
  https://github.com/chrisbra/matchit/blob/master/autoload/matchit.vim)

  ProblemType: Bug
  DistroRelease: Ubuntu 22.04
  Package: vim 2:8.2.3995-1ubuntu2.15
  ProcVersionSignature: Ubuntu 5.15.0-91.101-generic 5.15.131
  Uname: Linux 5.15.0-91-generic x86_64
  ApportVersion: 2.20.11-0ubuntu82.5
  Architecture: amd64
  CasperMD5CheckResult: unknown
  CurrentDesktop: ubuntu:GNOME
  Date: Wed Jan  3 11:53:45 2024
  DistributionChannelDescriptor:
   # This is the distribution channel descriptor for the OEM CDs
   # For more information see http://wiki.ubuntu.com/DistributionChannelDescriptor
   canonical-oem-somerville-bionic-amd64-20180608-47+north-bay-14-15-15p+X56
  InstallationDate: Installed on 2020-03-16 (1388 days ago)
  InstallationMedia: Ubuntu 18.04 "Bionic" - Build amd64 LIVE Binary 20180608-09:38
  SourcePackage: vim
  UpgradeStatus: Upgraded to jammy on 2023-12-10 (23 days ago)

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