[elpa] externals/vdiff 170e968c6a 4/4: Merge pull request #38 from wwade/master

[ELPA Syncer]

branch: externals/vdiff
commit 170e968c6a46a572b30c52c1b038232d418734cc
Merge: d5df45f843 1e6e393104
Author: Justin Burkett <justin@burkett.cc>
Commit: GitHub <noreply@github.com>

    Merge pull request #38 from wwade/master
    
    Fix diff opts handling (ignore case / whitespace)
---
 vdiff.el | 14 +++++++++-----
 1 file changed, 9 insertions(+), 5 deletions(-)

diff --git a/vdiff.el b/vdiff.el
index ac07e9c36b..33055eea2f 100644
--- a/vdiff.el
+++ b/vdiff.el
@@ -296,6 +296,10 @@ because those are handled differently.")
   "Make ARGS into list and remove nils."
   (delq nil (apply #'list args)))
 
+(defun vdiff--maybe-list (str)
+  "Return a list with STR as the sole element, or an empty list if STR is 
empty."
+  (if (string= str "") '() (list str)))
+
 (defun vdiff--buffer-a-p ()
   (when (and
          vdiff--session
@@ -489,7 +493,7 @@ non-nil. Ignore folds if NO-FOLD is non-nil."
                             vdiff--case-options)
            vdiff--case-options))))
   (setf (vdiff-session-case-args vdiff--session)
-        command-line-arg)
+        (vdiff--maybe-list command-line-arg))
   (when vdiff-mode
     (vdiff-refresh)))
 
@@ -502,7 +506,7 @@ non-nil. Ignore folds if NO-FOLD is non-nil."
                             vdiff--whitespace-options)
            vdiff--whitespace-options))))
   (setf (vdiff-session-whitespace-args vdiff--session)
-        command-line-arg)
+        (vdiff--maybe-list command-line-arg))
   (when vdiff-mode
     (vdiff-refresh)))
 
@@ -1901,8 +1905,8 @@ with non-nil USE-FOLDS."
    :process-buffer (generate-new-buffer-name " *vdiff* ")
    :word-diff-output-buffer (generate-new-buffer-name " *vdiff-word* ")
    :folds (make-hash-table :test 'equal :weakness 'value)
-   :case-args ""
-   :whitespace-args ""
+   :case-args nil
+   :whitespace-args nil
    :prior-window-config prior-window-config
    :on-quit on-quit
    :kill-buffers-on-quit kill-buffers-on-quit))
@@ -2359,7 +2363,7 @@ enabled automatically if `vdiff-lock-scrolling' is 
non-nil."
     "on (-i)"))
 
 (defun vdiff--current-whitespace ()
-  (pcase (vdiff-session-whitespace-args vdiff--session)
+  (pcase (car (vdiff-session-whitespace-args vdiff--session))
     ("" "off")
     ("-w" "all (-w)")
     ("-b" "space changes (-b)")