Variable: math--big-bracket-alist

math--big-bracket-alist is a variable defined in calccomp.el.gz.

Value

((40 9115 9117 9116)
 (41 9118 9120 9119)
 (91 9121 9123 9122)
 (93 9124 9126 9125)
 (123 9127 9129 9130 9128)
 (125 9131 9133 9130 9132))

Documentation

Alist mapping bracket chars to (UPPER LOWER EXTENSION MIDPIECE).

Not all brackets have midpieces.

Source Code

;; Defined in /usr/src/emacs/lisp/calc/calccomp.el.gz
;; FIXME: maybe try box drawing chars if big bracket chars are unavailable,
;; like  ┌     ┐n
;;       │a + b│     ┌ a + b ┐n
;;       │-----│  or │ ----- │    ?
;;       │  c  │     └   c   ┘
;;       └     ┘
;; They are more common than the chars below, but look a bit square.
;; Rounded corners exist but are less commonly available.

(defconst math--big-bracket-alist
  '((?\( . (?⎛ ?⎝ ?⎜))
    (?\) . (?⎞ ?⎠ ?⎟))
    (?\[ . (?⎡ ?⎣ ?⎢))
    (?\] . (?⎤ ?⎦ ?⎥))
    (?\{ . (?⎧ ?⎩ ?⎪ ?⎨))
    (?\} . (?⎫ ?⎭ ?⎪ ?⎬)))
  "Alist mapping bracket chars to (UPPER LOWER EXTENSION MIDPIECE).
Not all brackets have midpieces.")