/usr/share/vim/vim73/compiler/ruby.vim is in vim-runtime 2:7.3.429-2ubuntu2.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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" Language: Ruby
" Function: Syntax check and/or error reporting
" Maintainer: Tim Hammerquist <timh at rubyforge.org>
" Last Change: 2008 Aug 1
" URL: http://vim-ruby.rubyforge.org
" Anon CVS: See above site
" Release Coordinator: Doug Kearns <dougkearns@gmail.com>
" ----------------------------------------------------------------------------
"
" Changelog:
" 0.2: script saves and restores 'cpoptions' value to prevent problems with
" line continuations
" 0.1: initial release
"
" Contributors:
" Hugh Sasse <hgs@dmu.ac.uk>
" Doug Kearns <djkea2@gus.gscit.monash.edu.au>
"
" Todo:
" match error type %m
"
" Comments:
" I know this file isn't perfect. If you have any questions, suggestions,
" patches, etc., please don't hesitate to let me know.
"
" This is my first experience with 'errorformat' and compiler plugins and
" I welcome any input from more experienced (or clearer-thinking)
" individuals.
" ----------------------------------------------------------------------------
if exists("current_compiler")
finish
endif
let current_compiler = "ruby"
if exists(":CompilerSet") != 2 " older Vim always used :setlocal
command -nargs=* CompilerSet setlocal <args>
endif
let s:cpo_save = &cpo
set cpo-=C
" default settings runs script normally
" add '-c' switch to run syntax check only:
"
" CompilerSet makeprg=ruby\ -wc\ $*
"
" or add '-c' at :make command line:
"
" :make -c %<CR>
"
CompilerSet makeprg=ruby\ -w\ $*
CompilerSet errorformat=
\%+E%f:%l:\ parse\ error,
\%W%f:%l:\ warning:\ %m,
\%E%f:%l:in\ %*[^:]:\ %m,
\%E%f:%l:\ %m,
\%-C%\tfrom\ %f:%l:in\ %.%#,
\%-Z%\tfrom\ %f:%l,
\%-Z%p^,
\%-G%.%#
let &cpo = s:cpo_save
unlet s:cpo_save
" vim: nowrap sw=2 sts=2 ts=8:
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