--- style/amsmath.el-11.87	2008-02-03 23:53:31.000000000 +0900
+++ style/amsmath.el	2012-12-05 00:13:24.000000000 +0900
@@ -45,6 +45,7 @@
      '("xxalignat"  LaTeX-amsmath-env-alignat)
      '("aligned"    LaTeX-amsmath-env-aligned)
      '("gathered"   LaTeX-amsmath-env-aligned)
+     '("alignedat"  LaTeX-amsmath-env-alignedat)
      "align*" "gather*" "flalign*" "multline*" "equation*"
      "split"
      "cases"
@@ -56,6 +57,7 @@
      '("eqref" TeX-arg-ref)
      '("numberwithin" TeX-arg-counter "Section level")
      '("raisetag" "Dimension")
+     '("shoveright" t) '("shoveleft" t)
      '("intertext" t)
      '("hdotsfor" ["Stretch"] "Number of columns to cover")
      '("xleftarrow" ["Below"] "Above")
@@ -111,6 +113,7 @@
 		     ("xalignat"  . LaTeX-item-equations)
 		     ("xalignat*" . LaTeX-item-equation)
 		     ("xxalignat" . LaTeX-item-equation)
+		     ("alignedat" . LaTeX-item-equation)
 		     ("flalign"  . LaTeX-item-equations)
 		     ("flalign*" . LaTeX-item-equation)
 		     ("matrix" .  LaTeX-item-equation)
@@ -119,6 +122,7 @@
 		     ("Bmatrix" .  LaTeX-item-equation)
 		     ("vmatrix" .  LaTeX-item-equation)
 		     ("Vmatrix" .  LaTeX-item-equation)
+		     ("subarray" . LaTeX-item-equation)
 		     ("cases"    . LaTeX-item-equation))
 		   LaTeX-item-list))
 
@@ -158,6 +162,14 @@
       (setq where (concat "[" where "]")))
     (LaTeX-insert-environment env where)))
 
+(defun LaTeX-amsmath-env-alignedat (env)
+  (let ((where (read-string "(optional) Vertical position (t or b): "))
+     (ncols (read-string "Number of columns: ")))
+    (if (string= where "")
+     (setq where "")
+      (setq where (concat "[" where "]")))
+    (LaTeX-insert-environment env (concat where TeX-grop ncols TeX-grcl))))
+
 (defun LaTeX-item-equation ()
   (end-of-line 0)
   (just-one-space)
--- font-latex.el-11.87	2012-09-13 19:14:18.000000000 +0900
+++ font-latex.el	2012-12-24 01:37:51.000000000 +0900
@@ -824,7 +824,7 @@
 KEYWORDS is a list of keywords or keywords with syntax specs.
 CLASS corresponds to a keyword class and can be one of the
 symbols 'warning, 'variable, 'reference, 'biblatex, 'function,
-sectioning-0, 'sectioning-1, 'sectioning-2, 'sectioning-3,
+'sectioning-0, 'sectioning-1, 'sectioning-2, 'sectioning-3,
 'sectioning-4, 'sectioning-5, 'slide-title, 'textual,
 'bold-command, 'italic-command, 'math-command, 'type-command,
 'bold-declaration, 'italic-declaration or 'type-declaration.
@@ -1671,7 +1671,7 @@
 
 (defcustom font-latex-math-environments
   '("display" "displaymath" "equation" "eqnarray" "gather" "multline"
-    "align" "alignat" "xalignat")
+    "align" "alignat" "xalignat" "xxalignat" "flalign")
   "List of math environment names for font locking."
   :type '(repeat string)
   :group 'font-latex)