diff options
Diffstat (limited to 'src/guile/skribilo/package/eq.scm')
| -rw-r--r-- | src/guile/skribilo/package/eq.scm | 62 |
1 files changed, 45 insertions, 17 deletions
diff --git a/src/guile/skribilo/package/eq.scm b/src/guile/skribilo/package/eq.scm index a3eb99c..76bbf6c 100644 --- a/src/guile/skribilo/package/eq.scm +++ b/src/guile/skribilo/package/eq.scm @@ -29,6 +29,8 @@ :use-module (skribilo utils keywords) ;; `the-options', etc. :autoload (skribilo package base) (it symbol sub sup) :autoload (skribilo engine lout) (lout-illustration) + + :use-module (srfi srfi-39) :use-module (ice-9 optargs)) ;;; Author: Ludovic Courtès @@ -52,6 +54,11 @@ ;;; Utilities. ;;; +(define-public *embedded-renderer* + ;; Tells whether an engine is invoked as an embedded renderer or as the + ;; native engine. + (make-parameter #f)) + (define %operators '(/ * + - = != ~= < > <= >= sqrt expt sum product script in notin apply limit combinations)) @@ -178,15 +185,25 @@ a symbol representing the mathematical operator denoted by @var{m} (e.g., ;;; Markup. ;;; +(define-markup (eq-display :rest opts :key (ident #f) (class "eq-display")) + (new container + (markup 'eq-display) + (ident (or ident (symbol->string (gensym "eq-display")))) + (class class) + (options (the-options opts :ident :class :div-style)) + (body (the-body opts)))) + (define-markup (eq :rest opts :key (ident #f) (class "eq") - (inline? #f) + (inline? #f) (align-with #f) (renderer #f) (div-style 'over)) (new container (markup 'eq) (ident (or ident (symbol->string (gensym "eq")))) (class class) - (options `((:div-style ,div-style) - ,@(the-options opts :ident :class :div-style))) + (options `((:div-style ,div-style) (:align-with ,align-with) + ,@(the-options opts + :ident :class + :div-style :align-with))) (body (let loop ((body (the-body opts)) (result '())) (if (null? body) @@ -199,6 +216,7 @@ a symbol representing the mathematical operator denoted by @var{m} (e.g., ;; passed )))))) + (define-markup (eq:/ :rest opts :key (ident #f) (div-style #f)) ;; If no `:div-style' is specified here, obey the top-level one. (new markup @@ -295,6 +313,15 @@ a symbol representing the mathematical operator denoted by @var{m} (e.g., ;;; +(markup-writer 'eq-display (find-engine 'base) + :action (lambda (node engine) + (for-each (lambda (node) + (let ((eq? (is-markup? node 'eq))) + (if eq? (output (linebreak) engine)) + (output node engine) + (if eq? (output (linebreak) engine)))) + (markup-body node)))) + (markup-writer 'eq (find-engine 'base) :action (lambda (node engine) ;; The `:renderer' option should be a symbol (naming an engine @@ -306,20 +333,21 @@ a symbol representing the mathematical operator denoted by @var{m} (e.g., (cond ((not renderer) ;; default: use the current engine (output (it (markup-body node)) engine)) ((symbol? renderer) - (case renderer - ;; FIXME: We should have an `embed' slot for each - ;; engine class similar to `lout-illustration'. - ((lout) - (let ((lout-code - (with-output-to-string - (lambda () - (output node (find-engine 'lout)))))) - (output (lout-illustration - :ident (markup-ident node) - lout-code) - engine))) - (else - (skribe-error 'eq "invalid renderer" renderer)))) + (parameterize ((*embedded-renderer* #t)) + (case renderer + ;; FIXME: We should have an `embed' slot for each + ;; engine class similar to `lout-illustration'. + ((lout) + (let ((lout-code + (with-output-to-string + (lambda () + (output node (find-engine 'lout)))))) + (output (lout-illustration + :ident (markup-ident node) + lout-code) + engine))) + (else + (skribe-error 'eq "invalid renderer" renderer))))) ;; FIXME: `engine?' and `engine-class?' (else (skribe-error 'eq "`:renderer' -- wrong argument type" |