From 584020c40a4e35baeac0f6a5a3f8267ff43cd376 Mon Sep 17 00:00:00 2001
From: Kyle Meyer <kyle@kyleam.com>
Date: Fri, 4 Mar 2016 00:56:29 -0500
Subject: popup: Consider file targets in region

---
 snakemake-test.el | 20 ++++++++++++++++++++
 snakemake.el      | 26 +++++++++++++++++++++++++-
 2 files changed, 45 insertions(+), 1 deletion(-)

diff --git a/snakemake-test.el b/snakemake-test.el
index 8ebb3ff..6374b0d 100644
--- a/snakemake-test.el
+++ b/snakemake-test.el
@@ -693,6 +693,26 @@ rule abc:
                    (forward-line -1)
                    (snakemake-org-link-file-targets)))))
 
+(ert-deftest snakemake-test-region-file-targets ()
+  (let ((files '("/path/to/fname" "fname2" "CAP")))
+    (should (equal (mapcar #'expand-file-name files)
+                   (with-temp-buffer
+                     (insert (mapconcat #'identity files "\n"))
+                     (snakemake-region-file-targets
+                      (point-min) (point-max)))))
+    (should (equal (mapcar #'expand-file-name files)
+                   (with-temp-buffer
+                     (insert (mapconcat #'identity files ","))
+                     (snakemake-region-file-targets
+                      (point-min) (point-max)))))
+    (should (equal (mapcar #'expand-file-name files)
+                   (with-temp-buffer
+                     (insert (car files))
+                     (insert ?\n)
+                     (insert (mapconcat #'identity (cdr files) " "))
+                     (snakemake-region-file-targets
+                      (point-min) (point-max)))))))
+
 (ert-deftest snakemake-test-file-targets-at-point ()
   (should
    (equal '("aa.out")
diff --git a/snakemake.el b/snakemake.el
index 663f336..c3f5ec4 100644
--- a/snakemake.el
+++ b/snakemake.el
@@ -110,7 +110,8 @@ Snakefiles in the current directory will be detected."
   :package-version '(snakemake-mode . "0.4.0"))
 
 (defcustom snakemake-file-targets-hook
-  '(snakemake-dired-file-targets
+  '(snakemake-region-file-targets
+    snakemake-dired-file-targets
     snakemake-org-link-file-targets
     snakemake-thingatpt-file-targets)
   "Functions to return file targets at point.
@@ -120,6 +121,13 @@ value should be a list of absolute paths."
   :type 'hook
   :package-version '(snakemake-mode . "0.4.0"))
 
+(defcustom snakemake-region-files-strip-re
+  (concat (regexp-opt '("[" "]" "'" "\"" ";" ",")) "+")
+  "Regexp matching text to be discarded when collecting region files.
+Used by `snakemake-region-file-targets'."
+  :type 'regexp
+  :package-version '(snakemake-mode . "0.4.0"))
+
 
 ;;; Utilities
 
@@ -237,6 +245,22 @@ currently limited to a single-item list."
   (and (derived-mode-p 'dired-mode)
        (dired-get-marked-files)))
 
+(defun snakemake-region-file-targets (&optional beg end)
+  "Return file targets in region.
+
+Before generating the list, characters that match
+`snakemake-region-files-strip-re' are discarded.
+
+If BEG or END is non-nil, use them in place of `region-beginning'
+or `region-end', respectively."
+  (when (or (use-region-p) (and beg end))
+    (mapcar #'expand-file-name
+            (split-string
+             (replace-regexp-in-string
+              snakemake-region-files-strip-re " "
+              (buffer-substring-no-properties (or beg (region-beginning))
+                                              (or end (region-end))))))))
+
 (defun snakemake-thingatpt-file-targets ()
   "Return file at point accordinng `thing-at-point'.
 This function returns a list for consistency with other
-- 
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