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Fix CFLAGS parsing

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Split by space instead of dash.
This prevents incorrect parsing where space-separated arguments are
merged (in particular, .c or .o files were appended to -I or -D
arguments).

Handle shell escape: quotes and escaped quotes \" and shell
substitutions are recognised. This is done by verifying that no special
character (" ' ` ()) has not a matching character.

Fixes #2049
This commit is contained in:
François-Xavier Carton 2018-12-29 01:11:35 +01:00
parent 73ca1e7191
commit f7c4c403eb
1 changed files with 22 additions and 10 deletions
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32
autoload/ale/c.vim
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@ -48,26 +48,38 @@ endfunction
function! ale#c#ParseCFlags(path_prefix, cflag_line) abort
let l:cflags_list = []
let l:previous_options = []
let l:previous_options = ''
let l:split_lines = split(a:cflag_line, '-')
let l:split_lines = split(a:cflag_line, ' ')
let l:option_index = 0
while l:option_index < len(l:split_lines)
let l:option = l:split_lines[l:option_index]
let l:option = l:previous_options . l:split_lines[l:option_index]
let l:option_index = l:option_index + 1
call add(l:previous_options, l:option)
" Check if cflag contained a '-' and should not have been splitted
let l:option_list = split(l:option, '\zs')
if len(l:option_list) > 0 && l:option_list[-1] isnot# ' ' && l:option_index < len(l:split_lines)
" Check if cflag contained an unmatched characters and should not have been splitted
let l:option_special = substitute(l:option, '\\"', '', 'g')
let l:option_special = substitute(l:option_special, '[^"''()`]', '', 'g')
let l:option_special = substitute(l:option_special, '""', '', 'g')
let l:option_special = substitute(l:option_special, '''''', '', 'g')
let l:option_special = substitute(l:option_special, '``', '', 'g')
let l:option_special = substitute(l:option_special, '((', '(', 'g')
let l:option_special = substitute(l:option_special, '))', ')', 'g')
let l:option_special = substitute(l:option_special, '()', '', 'g')
if len(l:option_special) > 0 && l:option_index < len(l:split_lines)
let l:previous_options = l:option . ' '
continue
endif
let l:option = join(l:previous_options, '-')
let l:previous_options = []
" Check if there was spaces after -D/-I and the flag should not have been splitted
if l:option is# '-D' || l:option is# '-I'
let l:previous_options = l:option
continue
endif
let l:previous_options = ''
let l:option = '-' . substitute(l:option, '^\s*\(.\{-}\)\s*$', '\1', '')
" Fix relative paths if needed
if stridx(l:option, '-I') >= 0 &&