Qfyilyi

I've configured prettify-symbols-mode as below. However, only in the scratch buffer is any drawing performed. Further, lambda (λ) is the only multi-character token drawn as a unicode glyph. Is something missing or incorrectly set in the prettify configuration?

;; Globally prettify symbols

(global-prettify-symbols-mode 1)

(setq prettify-symbols-alist '(("lambda" . 955)

                               ("->" . 8594)

                               ("->>" . 21A0)

                               ("=>" . 8658)

                               ("map" . 8614)

                               ("/=" . 2260)

                               ("==" . 2261)

                               ("<=" . 2264)

                               (">=" . 2265)

                               ("=<<" . 226A)

                               (">>=" . 226B)

                               ("<=<" . 21A2)

                               (">=>" . 21A3)

                               ("&&" . 2227)

                               ("||" . 2228)

                               ("not" . 00AC)))

prettify-symbols-alist is a variable defined in ‘prog-mode.el’.

Automatically becomes buffer-local when set.

So your setq sets it only for a single buffer.

While setq-default could be used to set a default value, what you should do is use the appropriate major mode hooks to setq the value to a sensible value for each of the modes you are interested in.

This is partly because global-prettify-symbols-mode only enables the mode in buffers which have a buffer-local value for prettify-symbols-alist -- setting a default value doesn't trigger it.