#38 fix shellescape (#39)

autoload/esearch/backend/nvim.vim

@@ -103,10 +103,7 @@ endfu
 " g:esearch.expand_special has no affect due to josbstart is a function
 " (e.g #dispatch uses cmdline, where #,%,... can be expanded)
 fu! esearch#backend#nvim#escape_cmd(cmd) abort
-  let cmd = escape(esearch#util#shellescape(a:cmd), '()')
-  let cmd = substitute(cmd, '>', '\\>', 'g')
-  let cmd = substitute(cmd, '&', '\\&', 'g')
-  return cmd
+  return shellescape(a:cmd)
 endfu
 
 fu! esearch#backend#nvim#init_events() abort

autoload/esearch/backend/system.vim

@@ -16,7 +16,7 @@ fu! esearch#backend#system#run(request) abort
 endfu
 
 fu! esearch#backend#system#escape_cmd(cmd) abort
-  return escape(esearch#util#shellescape(a:cmd), '()')
+  return shellescape(a:cmd)
 endfu
 
 fu! esearch#backend#system#abort(...) abort

autoload/esearch/backend/vim8.vim

@@ -93,10 +93,7 @@ endfu
 " g:esearch.expand_special has no affect due to josbstart is a function
 " (e.g #dispatch uses cmdline, where #,%,... can be expanded)
 fu! esearch#backend#vim8#escape_cmd(cmd) abort
-  let cmd = escape(esearch#util#shellescape(a:cmd), '()')
-  let cmd = substitute(cmd, '>', '\\>', 'g')
-  let cmd = substitute(cmd, '&', '\\&', 'g')
-  return cmd
+  return shellescape(a:cmd)
 endfu
 
 fu! esearch#backend#vim8#init_events() abort

autoload/esearch/backend/vimproc.vim

@@ -131,9 +131,14 @@ fu! s:completed(request) abort
 endfu
 
 fu! esearch#backend#vimproc#abort(bufnr) abort
-  let esearch = getbufvar(a:bufnr, 'esearch', 0)
+  " FIXME unify with out#qflist
+  let esearch = getbufvar(a:bufnr, 'esearch', get(g:, 'esearch_qf', {}))
+  if empty(esearch)
+    return -1
+  endif
+
   let esearch.request.aborted = 1
-  return empty(esearch) ?  0 : esearch.request.pipe.kill(g:vimproc#SIGTERM)
+  return esearch.request.pipe.kill(g:vimproc#SIGKILL)
 endfu
 
 fu! esearch#backend#vimproc#init_events() abort