emacs/custom.el

(custom-set-variables
 ;; custom-set-variables was added by Custom.
 ;; If you edit it by hand, you could mess it up, so be careful.
 ;; Your init file should contain only one such instance.
 ;; If there is more than one, they won't work right.
 '(package-selected-packages
   '(spell-fu helm-company company auto-complete laas aas yasnippet evil editorconfig markdown-mode auctex rust-mode nasm-mode lua-mode ada-mode diff-hl magit corfu consult vertico)))
(custom-set-faces
 ;; custom-set-faces was added by Custom.
 ;; If you edit it by hand, you could mess it up, so be careful.
 ;; Your init file should contain only one such instance.
 ;; If there is more than one, they won't work right.
 )

(setq make-backup-files nil)

(unless (package-installed-p 'yasnippet)
  (package-install 'yasnippet))
(add-to-list 'load-path
	     "~/.config/emacs/snippets")
(yas-global-mode 1)
(setq yas-triggers-in-filed t)

(global-prettify-symbols-mode 1)
(setq yas-triggers-in-field t)

; Global Autoactivating snippet engine
(unless (package-installed-p 'aas)
  (package-install 'aas))

(use-package aas
  :hook (LaTeX-mode . aas-activate-for-major-mode)
  :hook (org-mode . aas-activate-for-major-mode)
  :config
  (aas-set-snippets 'text-mode
    ;; expand unconditionally
    ";o-" "ō"
    ";i-" "ī"
    ";a-" "ā"
    ";u-" "ū"
    ";e-" "ē"
    ";a:" "ä"
    ";o:" "ö"
    ";u:" "ü"
    )
  (aas-set-snippets 'global
    "credpriv" "Yannick Reiß <yannick.reiss@protonmail.ch>"
    "creduni" "Yannick Reiß <yannick.reiss@student.hs-rm.de>"
    )
  (aas-set-snippets 'c-mode
		    "/*" (lambda () (interactive)
			   (yas-expand-snippet "/* $1 */$0"))
    )
  (aas-set-snippets 'tex-mode
    ;; set condition!
    :cond #'texmathp ; expand only while in math
    "supp" "\\supp"
    "On" "O(n)"
    "O1" "O(1)"
    "Olog" "O(\\log n)"
    "Olon" "O(n \\log n)"
    ;; Use YAS/Tempel snippets with ease!
    "amin" '(yas "\\argmin_{$1}") ; YASnippet snippet shorthand form
    "amax" '(tempel "\\argmax_{" p "}") ; Tempel snippet shorthand form
    ;; bind to functions!
    ";ig" #'insert-register
    ";call-sin"
    (lambda (angle) ; Get as fancy as you like
      (interactive "sAngle: ")
      (insert (format "%s" (sin (string-to-number angle))))))
  ;; disable snippets by redefining them with a nil expansion
  (aas-set-snippets 'latex-mode
		    "supp" nil)
  (aas-set-snippets 'global
		    ";--" "—"
		    ";->" "→")
  (aas-global-mode))

;; LaTeX Autoactivating snippet engine
(unless (package-installed-p 'laas)
  (package-install 'laas))

(use-package laas
  :hook (LaTeX-mode . laas-mode)
  :config ; do whatever here
  (aas-set-snippets 'laas-mode
		    ;; Custom LaTeX Shortcuts
		    "ß" (lambda () (interactive)
			   (yas-expand-snippet "\\\\$0"))
		    "sss" (lambda () (interactive)
			   (yas-expand-snippet "ß$0"))
		    "%%" (lambda () (interactive)
			   (yas-expand-snippet "\\%$0"))
		    ",#" (lambda () (interactive)
			   (yas-expand-snippet "\\textbf{$1}$0"))
		    ",m" (lambda () (interactive)
			   (yas-expand-snippet "\\\\( $1 \\\\) $0"))
		    ";M" (lambda () (interactive)
			   (yas-expand-snippet " \\\\[ $1 \\\\] $0"))
		    ";L" (lambda () (interactive)
			   (yas-expand-snippet "\\begin{align} $1 \\end{align}$0"))
    		    "-->" "$\\rightarrow$"
		    "texmeta" (lambda () (interactive)
			   (yas-expand-snippet "% TODO: ${1:Do what?} `(current-time-string)`"))
		    "tgreen" (lambda () (interactive)
			       (yas-expand-snippet "\\textcolor{green}{$1}$0"))
		    "tblue" (lambda () (interactive)
			      (yas-expand-snippet "\\textcolor{blue}{$1}$0"))

                    ;; set condition!
                    :cond #'texmathp ; expand only while in math
                    "supp" "\\supp"
                    "On" "O(n)"
                    "O1" "O(1)"
                    "Olog" "O(\\log n)"
                    "Olon" "O(n \\log n)"
		    "menge" (lambda () (interactive)
			      (yas-expand-snippet "\\mathbb{$1}$0"))

		    ;; Greek Letters (Shortcuts)
		    "@a" "\\alpha"
		    "@A" "\\Alpha"
		    "@b" "\\beta"
		    "@B" "\\Beta"
		    "@p" "\\phi"
		    "@P" "\\Phi"
		    "@s" "\\sigma"
		    "@S" "\\Sigma"
		    "@m" "\\mu"
		    "@M" "\\Mu"

		    ;; custom math shortcuts
		    "%%" "\\%"
		    "++" (lambda () (interactive)
			   (yas-expand-snippet "^{$1}$0"))
		    "mod" (lambda () (interactive)
			    (yas-expand-snippet "\\text{ mod }"))
		    "root" (lambda () (interactive)
			     (yas-expand-snippet "\\sqrt[$1]{$2}$0"))
		    "__" (lambda () (interactive)
			   (yas-expand-snippet "_{$1}$0"))
		    "circ" "\\circ"
		    "in" "\\in"

                    ;; bind to functions!
                    "Sum" (lambda () (interactive)
                            (yas-expand-snippet "\\sum_{$1}^{$2} $0"))
                    "Span" (lambda () (interactive)
                             (yas-expand-snippet "\\Span($1)$0"))
                    ;; add accent snippets
                    :cond #'laas-object-on-left-condition
                    "qq" (lambda () (interactive) (laas-wrap-previous-object "sqrt"))))

(global-hl-line-mode 1)

(unless (package-installed-p 'company)
  (package-install 'company))
(add-hook 'after-init-hook 'global-company-mode)

(unless (package-installed-p 'helm-company)
  (package-install 'helm-company))

(unless (package-installed-p 'spell-fu)
  (package-install 'spell-fu))
(spell-fu-global-mode)

(add-hook 'spell-fu-mode-hook
  (lambda ()
    (spell-fu-dictionary-add (spell-fu-get-ispell-dictionary "de"))
    (spell-fu-dictionary-add (spell-fu-get-ispell-dictionary "en"))
))