[elpa] master de34d91 130/177: Closes #470, handle non-whitespace newlines

[João Távora]

branch: master
commit de34d91a3c149993526370f98cf36eb6da565976
Author: Noam Postavsky <address@hidden>
Commit: Noam Postavsky <address@hidden>

    Closes #470, handle non-whitespace newlines
    
    Many modes put newlines in comment ender class because they have line
    comments.
    
    * yasnippet.el (yas-try-key-from-whitespace): new function.
    (yas-key-syntaxes): use it in place of "^ ".
    * yasnippet-tests.el (complicated-yas-key-syntaxes): test it.
---
 yasnippet-tests.el |   12 ++++++++----
 yasnippet.el       |   14 +++++++++++++-
 2 files changed, 21 insertions(+), 5 deletions(-)

diff --git a/yasnippet-tests.el b/yasnippet-tests.el
index f40ed25..ae7a8d1 100644
--- a/yasnippet-tests.el
+++ b/yasnippet-tests.el
@@ -322,12 +322,13 @@ TODO: correct this bug!"
     (yas-saving-variables
      (yas-with-snippet-dirs
        '((".emacs.d/snippets"
-          ("text-mode"
+          ("emacs-lisp-mode"
            ("foo-barbaz" . "# condition: yas--foobarbaz\n# --\nOKfoo-barbazOK")
            ("barbaz" . "# condition: yas--barbaz\n# --\nOKbarbazOK")
-           ("baz" . "OKbazOK"))))
+           ("baz" . "OKbazOK")
+           ("'quote" . "OKquoteOK"))))
        (yas-reload-all)
-       (text-mode)
+       (emacs-lisp-mode)
        (yas-minor-mode-on)
        (let ((yas-key-syntaxes '("w" "w_")))
          (let ((yas--barbaz t))
@@ -342,7 +343,10 @@ TODO: correct this bug!"
                             'again))
                       yas-key-syntaxes))
                (yas--foobarbaz t))
-           (yas-should-expand '(("foo-barbaz" . "foo-barOKbazOK")))))))))
+           (yas-should-expand '(("foo-barbaz" . "foo-barOKbazOK")))))
+       (let ((yas-key-syntaxes '(yas-try-key-from-whitespace)))
+         (yas-should-expand '(("xxx\n'quote" . "xxx\nOKquoteOK")
+                              ("xxx 'quote" . "xxx OKquoteOK"))))))))
 
 
 ;;; Loading
diff --git a/yasnippet.el b/yasnippet.el
index fc5d36b..741ab61 100644
--- a/yasnippet.el
+++ b/yasnippet.el
@@ -388,7 +388,8 @@ the trigger key itself."
                       map)
   "The active keymap while a snippet expansion is in progress.")
 
-(defvar yas-key-syntaxes (list "w" "w_" "w_." "w_.()" "^ ")
+(defvar yas-key-syntaxes (list "w" "w_" "w_." "w_.()"
+                               #'yas-try-key-from-whitespace)
   "Syntaxes and functions to help look for trigger keys before point.
 
 Each element in this list specifies how to skip buffer positions
@@ -2726,6 +2727,17 @@ and `kill-buffer' instead."
 
 
 
+;;; User convenience functions, for using in `yas-key-syntaxes'
+
+(defun yas-try-key-from-whitespace ()
+  "Go back to nearest whitespace.
+
+A newline will be considered whitespace even if the mode syntax
+marks it as something else (typically comment ender). Use as
+element of `yas-key-syntaxes'."
+  (skip-chars-backward "^[:space:]\n"))
+
+
 ;;; User convenience functions, for using in snippet definitions
 
 (defvar yas-modified-p nil