add key combination for zooming in emacs

emacs/.emacs

@@ -2,14 +2,38 @@
 (add-to-list 'package-archives '("melpa" . "https://melpa.org/packages/") t)
 (package-initialize)
 
+
 (setq-default word-wrap t)
 
+
 ; Display current column
 ;; https://www.gnu.org/software/emacs/manual/html_node/efaq/Displaying-the-current-line-or-column.html
 (setq column-number-mode t)
 
+
 ; Set default encoding as UTF-8
 (set-terminal-coding-system 'utf-8)
 
+
 ; Don't show welcome screen every time
 (setq inhibit-startup-screen t)
+
+
+; Scroll buffer without moving cursor
+;; https://www.emacswiki.org/emacs/Scrolling#h5o-2
+(defun gcm-scroll-down ()
+  (interactive)
+  (scroll-up 1))
+
+(defun gcm-scroll-up ()
+  (interactive)
+  (scroll-down 1))
+
+(global-set-key [(control down)] 'gcm-scroll-down)
+(global-set-key [(control up)]   'gcm-scroll-up)
+
+
+; Zooming
+; https://stackoverflow.com/questions/5533110/emacs-zoom-in-zoom-out
+(global-set-key [C-mouse-4] 'text-scale-increase)  ; scroll up
+(global-set-key [C-mouse-5] 'text-scale-decrease)  ; scroll down

vim/README.md

@@ -1,2 +1,2 @@
-`.vimrc`: Located at `~/.vim/`.
-`digraph_defs.vim`: Located at `~/.vim/`.
+ - `.vimrc`: Located at `~/.vim/`.
+ - `digraph_defs.vim`: Located at `~/.vim/`.

vim/digraph_defs.vim

@@ -2,9 +2,11 @@
 " https://en.wikipedia.org/wiki/Mathematical_operators_and_symbols_in_Unicode
 " https://github.com/joom/latex-unicoder.vim/blob/master/autoload/unicoder.vim
 
+
 "" Set theory
 digr )- 8713  " ∉
 
+
 "" Super-script characters
 " Note: q, C, F, Q, S, X, Y, Z haven't got super-script version.
 digr ^0 8304  " ⁰ (duplicate of 0S)
@@ -17,8 +19,6 @@ digr ^6 8310  " ⁶ (duplicate of 6S)
 digr ^7 8311  " ⁷ (duplicate of 7S)
 digr ^8 8312  " ⁸ (duplicate of 8S)
 digr ^9 8313  " ⁹ (duplicate of 9S)
-digr ^+ 8314  " ⁺ (duplicate of +S)
-digr ^- 8315  " ⁻ (duplicate of -S)
 digr ^a 7491  " ᵃ
 digr ^b 7495  " ᵇ
 digr ^c 7580  " ᶜ
@@ -64,6 +64,12 @@ digr ^U 7489  " ᵁ
 digr ^V 11389  " ⱽ
 digr ^W 7490  " ᵂ
 
+digr ^+ 8314  " ⁺ (duplicate of +S)
+digr ^- 8315  " ⁻ (duplicate of -S)
+digr ^= 8316  " ⁼
+digr ^( 8317  " ⁽
+digr ^) 8318  " ⁾
+
 
 "" Sub-script characters
 " Note: b, c, d, f, g, q, w, y, z haven't got sub-script version.
@@ -78,8 +84,6 @@ digr _6 8326  " ₆ (duplicate of 6s)
 digr _7 8327  " ₇ (duplicate of 7s)
 digr _8 8328  " ₈ (duplicate of 8s)
 digr _9 8329  " ₉ (duplicate of 9s)
-digr _+ 8330  " ₊ (duplicate of +s)
-digr _- 8331  " ₋ (duplicate of -s)
 digr _a 8336  " ₐ
 digr _e 8337  " ₑ
 digr _h 8341  " ₕ
@@ -98,6 +102,12 @@ digr _u 7524  " ᵤ
 digr _v 7525  " ᵥ
 digr _x 8339  " ₓ
 
+digr _+ 8330  " ₊ (duplicate of +s)
+digr _- 8331  " ₋ (duplicate of -s)
+digr _= 8332  " ₌
+digr _( 8333  " ₍
+digr _) 8334  " ₎
+
 
 "" Italic letters (resemble italics syntax in emacs org-mode)
 digr /A 119860  " 𝐴
@@ -162,14 +172,16 @@ digr CC 8450  " ℂ: Set of complex numbers (overriding ~T: Cancel character)
 digr QQ 8474  " ℚ: Set of rational numbers
 digr BB 120121  " 𝔹: Set of Booleans (overriding ¦)
 
+
 "" Constants
 digr ee 8495  " ℯ: Euler's number ≅ 2.71828
-
 digr ph 8501  " ℵ : Aleph number (in addition to א (A+))
 
+
 "" Fancy letters
 digr el 8467  " ℓ
 
+
 "" Proof theory stuff
 digr TN 8708  " ∄ (Since ∃ is TE)
 digr n< 8602  " ↚ (Since ← is <-)
@@ -211,6 +223,7 @@ digr ~~ 822  " strikethrough text overlay
 "" With grave
 " digr a`        " à
 
+
 "" With tilde
 digr A~ 195  " Ã (duplicate of 'A?')
 digr E~ 7868 " Ẽ (duplicate of 'E?')
@@ -230,7 +243,6 @@ digr v~ 7805 " ṽ (duplicate of 'v?')
 digr y~ 7929 " ỹ (duplicate of 'y?')
 
 
-
 "" Matrix brackets
 
 "lbrackuend      ⎡