From 8637f3d0fa8d2f7325313abd66edb072b1a69db7 Mon Sep 17 00:00:00 2001
From: Stefan Monnier <monnier@iro.umontreal.ca>
Date: Sat, 2 Jan 2016 13:03:42 -0500
Subject: [PATCH] (semantic-symref-derive-find-filepatterns): Return a list

* lisp/cedet/semantic/symref/grep.el
(semantic-symref-derive-find-filepatterns): Return a list.
(semantic-symref-perform-search): Quote the result here once and for all.
---
 lisp/cedet/semantic/symref/grep.el | 39 +++++++++++++++++---------------------
 1 file changed, 17 insertions(+), 22 deletions(-)

diff --git a/lisp/cedet/semantic/symref/grep.el b/lisp/cedet/semantic/symref/grep.el
index 54b538345ab..3b544d9f912 100644
--- a/lisp/cedet/semantic/symref/grep.el
+++ b/lisp/cedet/semantic/symref/grep.el
@@ -53,6 +53,8 @@ and those hits returned.")
 See find -name man page for format.")
 
 (defun semantic-symref-derive-find-filepatterns (&optional mode)
+  ;; FIXME: This should be moved to grep.el, where it could be used
+  ;; for "C-u M-x grep" as well.
   "Derive a list of file patterns for the current buffer.
 Looks first in `semantic-symref-filepattern-alist'.  If it is not
 there, it then looks in `auto-mode-alist', and attempts to derive something
@@ -64,28 +66,20 @@ Optional argument MODE specifies the `major-mode' to test."
     (when (not pat)
       ;; No hit, try auto-mode-alist.
       (dolist (X auto-mode-alist)
-	(when (eq (cdr X) mode)
-	  ;; Only take in simple patterns, so try to convert this one.
-	  (let ((Xp
-		 (cond ((string-match "\\\\\\.\\([^\\'>]+\\)\\\\'" (car X))
-			(concat "*." (match-string 1 (car X))))
-		       (t nil))))
-	    (when Xp
-	      (setq pat (cons Xp pat))))
-	  )))
+	(when (and (eq (cdr X) mode)
+                   ;; Only take in simple patterns, so try to convert this one.
+                   (string-match "\\\\\\.\\([^\\'>]+\\)\\\\'" (car X)))
+          (push (concat "*." (match-string 1 (car X))) pat))))
     ;; Convert the list into some find-flags.
-    (cond ((= (length pat) 1)
-	   (concat "-name " (shell-quote-argument (car pat))))
-	  ((consp pat)
-	   (concat (shell-quote-argument "(") " "
-		   (mapconcat (lambda (s)
-				(concat "-name " (shell-quote-argument s)))
-			      pat
-			      " -o ")
-		   " " (shell-quote-argument ")")))
-	  (t
-	   (error "Customize `semantic-symref-filepattern-alist' for %s" major-mode))
-	  )))
+    (if (null pat)
+        (error "Customize `semantic-symref-filepattern-alist' for %S"
+               major-mode)
+      (let ((args `("-name" ,(car pat))))
+        (if (null (cdr args))
+            args
+          `("(" ,@args
+            ,@(apply #'nconc (mapcar (lambda (s) `("-o" "-name" ,s)) pat))
+            ")"))))))
 
 (defvar grepflags)
 (defvar greppattern)
@@ -147,7 +141,8 @@ This shell should support pipe redirect syntax."
   ;; Find the root of the project, and do a find-grep...
   (let* (;; Find the file patterns to use.
 	 (rootdir (semantic-symref-calculate-rootdir))
-	 (filepattern (semantic-symref-derive-find-filepatterns))
+	 (filepatterns (semantic-symref-derive-find-filepatterns))
+         (filepattern (mapconcat #'shell-quote-argument filepatterns " "))
 	 ;; Grep based flags.
 	 (grepflags (cond ((eq (oref tool :resulttype) 'file)
                            "-l ")
-- 
2.11.4.GIT