adding the package magic-latex-buffer to the latex layer

layers/+lang/latex/README.org

@@ -13,6 +13,7 @@
   - [[#build-command][Build command]]
   - [[#auto-fill][Auto-fill]]
   - [[#folding][Folding]]
+  - [[#magic-latex-buffer][Magic latex buffer]]
 - [[#keybindings][Keybindings]]
   - [[#folding-1][Folding]]
   - [[#reftex][RefTeX]]
@@ -87,6 +88,28 @@ is nil.
     (latex :variables latex-enable-folding t))
 #+END_SRC
 
+** Magic latex buffer
+To enable “magic” symbols in latex buffers, set the variable
+=latex-enable-magic= to =t=.
+
+#+BEGIN_SRC emacs-lisp
+  dotspacemacs-configuration-layers '(
+    (latex :variables latex-enable-magic t))
+#+END_SRC
+
+The precise effect of this feature can be modified by adjusting the following
+variables:
+- =magic-latex-enable-block-highlight=: show font properties like =\large=
+  (default =t=).
+- =magic-latex-enable-block-align=: reflect block alignment such as =\center=
+  (default =nil=).
+- =magic-latex-enable-pretty-symbols=: substitute symbols in place of code, e.g.
+  greek letters (default =t=).
+- =magic-latex-enable-suscript=: show subscripts and superscripts (default =t=).
+- =magic-latex-enable-inline-image=: show images inline (default =nil=).
+
+By default, the underlying latex code is echoed in the echo area.
+
 * Keybindings
 
 | Key Binding   | Description                                |

layers/+lang/latex/config.el

@@ -22,6 +22,9 @@
 (defvar latex-enable-folding nil
   "Whether to use `TeX-fold-mode' or not in tex/latex buffers.")
 
+(defvar latex-enable-magic nil
+  "Whether to enable \"magic\" symbols in the buffer.")
+
 (defvar latex-nofill-env '("equation"
                            "equation*"
                            "align"

layers/+lang/latex/packages.el

@@ -10,21 +10,22 @@
 ;;; License: GPLv3
 
 (setq latex-packages
-  '(
-    auctex
-    (auctex-latexmk :toggle (string= "LatexMk" latex-build-command))
-    (company-auctex :toggle (configuration-layer/package-usedp 'company))
-    evil-matchit
-    (reftex :location built-in)
-    flycheck
-    flyspell
-    ggtags
-    helm-gtags
-    smartparens
-    typo
-    yasnippet
-    which-key
-    ))
+      '(
+        auctex
+        (auctex-latexmk :toggle (string= "LatexMk" latex-build-command))
+        (company-auctex :toggle (configuration-layer/package-usedp 'company))
+        evil-matchit
+        (reftex :location built-in)
+        flycheck
+        flyspell
+        ggtags
+        helm-gtags
+        (magic-latex-buffer :toggle latex-enable-magic)
+        smartparens
+        typo
+        yasnippet
+        which-key
+        ))
 
 (defun latex/init-auctex ()
   (use-package tex
@@ -199,3 +200,15 @@
 (defun latex/post-init-which-key ()
   (push '((nil . "\\`latex/font-\\(.+\\)\\'") . (nil . "\\1"))
         which-key-replacement-alist))
+
+(defun latex/init-magic-latex-buffer ()
+  (use-package magic-latex-buffer
+    :defer t
+    :init
+    (progn
+      (add-hook 'LaTeX-mode-hook 'magic-latex-buffer)
+      (setq magic-latex-enable-block-highlight t
+            magic-latex-enable-suscript t
+            magic-latex-enable-pretty-symbols t
+            magic-latex-enable-block-align nil
+            magic-latex-enable-inline-image nil))))