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" Author: Christian Gibbons <cgibbons@gmu.edu>
" Description: This file defines a handler function that should work for the
" flawfinder format with the -CDQS flags.
" Swiped this function from the GCC handler. Not sure if needed, but doesn't
" hurt to have it.
function! s:RemoveUnicodeQuotes(text) abort
let l:text = a:text
let l:text = substitute(l:text, '[`´‘’]', '''', 'g')
let l:text = substitute(l:text, '\v\\u2018([^\\]+)\\u2019', '''\1''', 'g')
let l:text = substitute(l:text, '[“”]', '"', 'g')
return l:text
endfunction
function! ale#handlers#flawfinder#HandleFlawfinderFormat(buffer, lines) abort
" Look for lines like the following.
"
" <stdin>:12:4: [2] (buffer) char:Statically-sized arrays can be improperly restricted, leading to potential overflows or other issues (CWE-119!/CWE-120). Perform bounds checking, use functions that limit length, or ensure that the size is larger than the maximum possible length.
" <stdin>:31:4: [1] (buffer) strncpy:Easily used incorrectly; doesn't always \0-terminate or check for invalid pointers [MS-banned] (CWE-120).
let l:pattern = '\v^([a-zA-Z]?:?[^:]+):(\d+):(\d+)?:? ( \[[0-5]\] [^:]+):(.+)$'
let l:output = []
for l:match in ale#util#GetMatches(a:lines, l:pattern)
" Use severity level to determine if it should be considered a warning
" or error.
let l:severity = str2nr(matchstr(split(l:match[4])[0], '[0-5]'))
let l:item = {
\ 'lnum': str2nr(l:match[2]),
\ 'col': str2nr(l:match[3]),
\ 'type': (l:severity < ale#Var(a:buffer, 'c_flawfinder_error_severity'))
\ ? 'W' : 'E',
\ 'text': s:RemoveUnicodeQuotes(join(split(l:match[4])[1:]) . ': ' . l:match[5]),
\}
" If the filename is something like <stdin>, <nofile> or -, then
" this is an error for the file we checked.
if l:match[1] isnot# '-' && l:match[1][0] isnot# '<'
let l:item['filename'] = l:match[1]
endif
call add(l:output, l:item)
endfor
return l:output
endfunction
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