diff options
| -rw-r--r-- | src/guile/skribilo/package/eq.scm | 15 | ||||
| -rw-r--r-- | src/guile/skribilo/package/eq/lout.scm | 20 |
2 files changed, 30 insertions, 5 deletions
diff --git a/src/guile/skribilo/package/eq.scm b/src/guile/skribilo/package/eq.scm index 8b4d325..90db17b 100644 --- a/src/guile/skribilo/package/eq.scm +++ b/src/guile/skribilo/package/eq.scm @@ -60,6 +60,11 @@ ;; native engine. (make-parameter #f)) +(define-public *use-lout-eq2?* + ;; Whether the use the new Lout `eq2' package instead of `eq'. + (make-parameter #f)) + + (define %operators '(/ * + - = != ~= < > <= >= sqrt expt sum product script in notin apply limit combinations set)) @@ -130,6 +135,16 @@ a symbol representing the mathematical operator denoted by @var{m} (e.g., ((#t) #t) (else #f))))) +(define-public (direct-equation-child? m) + "Return @code{#t} if @var{m} is a direct child of an @code{eq} markup." + (let ((parent (ast-parent m))) + (and (is-markup? parent 'eq) + (let ((body (markup-body parent))) + (or (eq? body m) + (and (list? body) + (memq m body))))))) + + ;;; ;;; Operator precedence. diff --git a/src/guile/skribilo/package/eq/lout.scm b/src/guile/skribilo/package/eq/lout.scm index d0d9570..bd4ccc7 100644 --- a/src/guile/skribilo/package/eq/lout.scm +++ b/src/guile/skribilo/package/eq/lout.scm @@ -45,7 +45,9 @@ ;; Append the `eq' include file (engine-custom-set! lout 'includes (string-append includes "\n" - "@SysInclude { eq }\n"))))) + "@SysInclude { " + (if (*use-lout-eq2?*) "eq2" "eq") + " }\n"))))) ;;; @@ -131,7 +133,8 @@ (and first? (is-markup? eq-parent 'eq-display) (eq? ',sym - (markup-option eq :align-with)))) + (markup-option eq :align-with)) + (direct-equation-child? node))) (op (car operands)) (eq-op? (equation-markup? op)) (need-paren? @@ -232,9 +235,12 @@ (let ((body (markup-body node)) (var (markup-option node :var)) (limit (markup-option node :limit))) - (display "{ lim from { ") + (format #t "{ lim ~a { { " + (if (*use-lout-eq2?*) + "atop @SubScriptStyle" + "from")) (output var engine) - (display " --> ") + (display " } --> ") (output limit engine) (display (string-append " } } @VContract { " %left-paren)) (output body engine) @@ -262,7 +268,11 @@ (let ((from (markup-option node :from)) (to (markup-option node :to)) (body (markup-body node))) - (display ,(string-append " { big " lout-name + (display ,(string-append " { " + (if (*use-lout-eq2?*) + "" + "big ") + lout-name " from { ")) (output from engine) (display " } to { ") |