;; This file:
;;   http://anggtwu.net/MAXIMA/barematrix1.lisp.html
;;   http://anggtwu.net/MAXIMA/barematrix1.lisp
;;          (find-angg "MAXIMA/barematrix1.lisp")
;; Author: Eduardo Ochs <eduardoochs@gmail.com>
;;
;; This file is loaded by:
;;   (find-angg "MAXIMA/barematrix1.mac")
;; It removes some TeX-isms from how "matrix"es and "/"s are TeXed,
;; and makes them more LaTeX-friendly.
;;
;; Compare the defuns below with:
;; (find-maximagitfile "src/mactex.lisp" "(defprop $matrix tex-matrix tex)")
;; (find-maximagitfile "src/mactex.lisp" "(defprop $matrix tex-matrix tex)" "\\ifx")
;; (find-maximagitfile "src/mactex.lisp" "(defun tex-mquotient ")
;; (find-maximagitfile "src/mactex.lisp" "(defun tex-mquotient " "\\over")
;;
;; (defun bl () (interactive) (find-angg "MAXIMA/barematrix1.lisp"))
;; (defun bm () (interactive) (find-angg "MAXIMA/barematrix1.mac"))
;;
;; «.tex-matrix»	(to "tex-matrix")
;; «.tex-barematrix»	(to "tex-barematrix")
;; «.tex-mquotient»	(to "tex-mquotient")


(defprop $matrix     tex-matrix     tex)
(defprop $barematrix tex-barematrix tex)

;; «tex-matrix»  (to ".tex-matrix")
(defun tex-matrix (x l r) ;; matrix looks like ((mmatrix) ((mlist) a b) ...)
  (append l `("\\begin{pmatrix}")
	  (mapcan #'(lambda(y)
		      (tex-list (cdr y) nil (list "\\cr ") "&"))
		  (cdr x))
	  '("\\end{pmatrix}") r))

;; «tex-barematrix»  (to ".tex-barematrix")
;; Bonus:
(defun tex-barematrix (x l r)
  (append l `("\\begin{matrix}")
	  (mapcan #'(lambda(y)
		      (tex-list (cdr y) nil (list "\\cr ") "&"))
		  (cdr x))
	  '("\\end{matrix}") r))

;; «tex-mquotient»  (to ".tex-mquotient")
(defun tex-mquotient (x l r)
  (twoargcheck x)
  (setq l (tex (cadr x) (append l '("{\\frac{")) nil 'mparen 'mparen)
					;the divide bar groups things
	r (tex (caddr x) (list "}{") (append '("}}")r) 'mparen 'mparen))
  (append l r))










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