Add xref support for LaTeX

init.org

@@ -1032,6 +1032,7 @@ Don't try to check if there are files with a certain extension...it will lead to
         ((derived-mode-p 'sh-mode)         (my-shell-hydra/body))
         ((derived-mode-p 'sql-mode)        (my-sql-hydra/body))
         ((derived-mode-p 'comint-mode)     (my-comint-hydra/body))
+        ((derived-mode-p 'tex-mode)        (my-tex-hydra/body))
         (t (my-general-hydra/body))))
 
 (use-package boon
@@ -1080,6 +1081,13 @@ Don't try to check if there are files with a certain extension...it will lead to
   ("r" comint-next-prompt "next"))
 #+END_SRC
 
+*** LaTeX
+#+BEGIN_SRC emacs-lisp
+(my-defhydra my-tex-hydra (:color blue)
+  ("j" xref-find-definitions "Jump to definition")
+  ("h" my-help-hydra/body "Help"))
+#+END_SRC
+
 ** marginalia
 :PROPERTIES:
 :CREATED:  2022-01-16T00:28:51+0530
@@ -3048,7 +3056,9 @@ PR ideas
         ("m" . #'mu4e-headers-mark-for-something)
         ("u" . #'mu4e-headers-mark-for-unmark)
         ("Q" . #'mu4e-mark-execute-all)
-        ("+" . #'my-mu4e-mkdir))
+        ("+" . #'my-mu4e-mkdir)
+        ("h" . #'mu4e-headers-prev-unread)
+        ("s" . #'mu4e-headers-next-unread))
   (:map mu4e-view-mode-map
         ("c" . #'mu4e-view-headers-prev)
         ("r" . #'mu4e-view-headers-next))
@@ -4449,6 +4459,14 @@ Used by Eldev documentation.
 :CUSTOM_ID: programming
 :END:
 ** FIXME common [%]
+*** xref
+#+BEGIN_SRC emacs-lisp
+(use-package xref
+  :bind (:map xref--xref-buffer-mode-map
+              ("c" . #'xref-prev-line)
+              ("r" . #'xref-next-line)))
+#+END_SRC
+
 *** swap keys                                                    :disabled:
 1. [X] =keyswap-mode= swaps numeric keys with symbols by default. We want to swap just () with [] (to begin with), but the code below doesn't work, for some reason.
 2. [ ] Does not always work in the minibuffer, namely =eval-expression=
@@ -4751,6 +4769,12 @@ Create advice for =lispy-pair= - if =lispy--in-string-or-comment-p= is true, sel
          ("c" . previous-line))))
 #+END_SRC
 
+*** dump-jump
+#+BEGIN_SRC emacs-lisp
+(use-package dumb-jump
+  :init (add-hook 'xref-backend-functions #'dumb-jump-xref-activate))
+#+END_SRC
+
 ** lisp
 :PROPERTIES:
 :CREATED:  2022-01-13T21:03:15+0530