Enable default input for non-path

Close #218

autoload/ctrlp.vim

@@ -529,7 +529,7 @@ fu! s:BuildPrompt(upd, ...)
 endf
 " - SetDefTxt() {{{1
 fu! s:SetDefTxt()
-	if s:deftxt == '0' || !s:ispath | retu | en
+	if s:deftxt == '0' || ( s:deftxt == 1 && !s:ispath ) | retu | en
 	let txt = s:deftxt
 	if !type(txt)
 		let txt = txt && !stridx(s:crfpath, s:dyncwd)

doc/ctrlp.txt

@@ -341,6 +341,10 @@ Set this to 1 to enable seeding the prompt with the current file's relative
 path: >
   let g:ctrlp_default_input = 0
 <
+Instead of 1 or 0, if the value of the option is a string, it'll be used as-is
+as the default input: >
+  let g:ctrlp_default_input = 'anystring'
+<
 
                                                          *'g:ctrlp_use_migemo'*
 Set this to 1 to use Migemo Pattern for Japanese filenames. Migemo Search only