diff options
Diffstat (limited to 'src/guile')
| -rw-r--r-- | src/guile/skribilo/package/eq/lout.scm | 27 |
1 files changed, 15 insertions, 12 deletions
diff --git a/src/guile/skribilo/package/eq/lout.scm b/src/guile/skribilo/package/eq/lout.scm index 16d4513..cc4b3bf 100644 --- a/src/guile/skribilo/package/eq/lout.scm +++ b/src/guile/skribilo/package/eq/lout.scm @@ -73,6 +73,11 @@ :after " } }") +;; Scaled parenthesis. We could use `pmatrix' here but it precludes +;; line-breaking within equations. +(define %left-paren "{ Base @Font @VScale \"(\" }") +(define %right-paren "{ Base @Font @VScale \")\" }") + (define (div-style->lout style) (case style ((over) "over") @@ -91,13 +96,11 @@ (cadr args))) (precedence (operator-precedence sym)) - ;; Note: We could use `pmatrix' here but it precludes line-breaking - ;; within equations. (open-par (if parentheses? - `(if need-paren? "{ @VScale ( }" "") + `(if need-paren? %left-paren "") "")) (close-par (if parentheses? - `(if need-paren? "{ @VScale ) }" "") + `(if need-paren? %right-paren "") ""))) `(markup-writer ',(symbol-append 'eq: sym) (find-engine 'lout) @@ -175,9 +178,9 @@ (second (cadr body)) (parentheses? (equation-markup? first))) (display " { { ") - (if parentheses? (display "(")) + (if parentheses? (display %left-paren)) (output first engine) - (if parentheses? (display ")")) + (if parentheses? (display %right-paren)) (display ,(string-append " } " lout-name " { ")) (output second engine) (display " } } ")) @@ -185,15 +188,15 @@ "wrong number of arguments" body)))))) -(binary-lout-markup-writer expt "sup") -(binary-lout-markup-writer in "element") +(binary-lout-markup-writer expt "sup") +(binary-lout-markup-writer in "element") (binary-lout-markup-writer notin "notelement") (markup-writer 'eq:apply (find-engine 'lout) :action (lambda (node engine) (let ((func (car (markup-body node)))) (output func engine) - (display "(") + (display %left-paren) (let loop ((operands (cdr (markup-body node)))) (if (null? operands) #t @@ -202,7 +205,7 @@ (if (not (null? (cdr operands))) (display ", ")) (loop (cdr operands))))) - (display ")")))) + (display %right-paren)))) (markup-writer 'eq:limit (find-engine 'lout) @@ -214,9 +217,9 @@ (output var engine) (display " --> ") (output limit engine) - (display " } } (") + (display (string-append " } } @VContract { " %left-paren)) (output body engine) - (display ") ")))) + (display (string-append %right-paren " } "))))) (markup-writer 'eq:combinations (find-engine 'lout) :action (lambda (node engine) |