348 lines
11 KiB
Scheme
348 lines
11 KiB
Scheme
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(module syntax-snip mzscheme
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(require (lib "class.ss")
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(lib "mred.ss" "mred")
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(lib "framework.ss" "framework")
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(lib "match.ss")
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(lib "list.ss")
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(lib "string.ss")
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"interfaces.ss"
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"display.ss"
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"controller.ss"
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"properties.ss"
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"partition.ss")
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(provide syntax-value-snip%)
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;; syntax-value-snip%
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(define syntax-value-snip%
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(class* editor-snip% (readable-snip<%>)
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(init-field ((stx syntax)))
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(init-field host)
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(inherit set-margin
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set-inset)
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(define text (new text:standard-style-list%))
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(super-new (editor text) (with-border? #f))
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(set-margin 0 0 0 0)
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(set-inset 2 2 2 2)
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(send text begin-edit-sequence)
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(send text change-style (make-object style-delta% 'change-alignment 'top))
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(define display
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(print-syntax-to-editor stx text (send host get-controller)))
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(send text lock #t)
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(send text end-edit-sequence)
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(send text hide-caret #t)
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(send host add-keymap text this)
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;; snip% Methods
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(define/override (copy)
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(new syntax-value-snip% (host host) (syntax stx)))
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;; read-special : any number/#f number/#f number/#f -> syntax
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;; Produces 3D syntax to preserve eq-ness of syntax
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;; #'#'stx would be lose identity when wrapped
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(define/public (read-special src line col pos)
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(with-syntax ([p (lambda () stx)])
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#'(p)))
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))
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;; syntax-snip%
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#;
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(define syntax-snip%
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(class* editor-snip% (readable-snip<%>)
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(init-field ((stx syntax)))
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(init-field primary-partition)
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(inherit set-margin
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set-inset
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set-snipclass
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set-tight-text-fit
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show-border
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get-admin)
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(define properties-snip (new properties-snip%))
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(define -outer (new text%))
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(super-new (editor -outer) (with-border? #f))
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(set-margin 0 0 0 0)
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(set-inset 0 0 0 0)
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(set-snipclass snip-class)
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(send -outer select-all)
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(define the-syntax-snip
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(new syntax-value-snip%
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(syntax stx)
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(controller controller)
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;; FIXME
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#;(syntax-keymap% syntax-keymap%)
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))
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(define the-summary
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(let ([line (syntax-line stx)]
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[col (syntax-column stx)])
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(if (and line col)
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(format "#<syntax:~s:~s>" line col)
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"#<syntax>")))
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(define shown? #f)
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(define/public (refresh)
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(if shown?
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(refresh/shown)
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(refresh/hidden)))
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(define/private (refresh/hidden)
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(send* -outer
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(begin-edit-sequence)
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(lock #f)
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(erase))
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(set-tight-text-fit #t)
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(show-border #f)
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(outer:insert (show-icon) style:hyper
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(lambda _ (set! shown? #t) (refresh)))
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(outer:insert the-summary)
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(send* -outer
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(lock #t)
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(end-edit-sequence)))
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(define/private (refresh/shown)
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(send* -outer
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(begin-edit-sequence)
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(lock #f)
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(erase))
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(set-tight-text-fit #f)
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(show-border #t)
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(outer:insert (hide-icon) style:hyper
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(lambda _ (set! shown? #f) (refresh)))
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(outer:insert " ")
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(outer:insert the-syntax-snip)
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(outer:insert " ")
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(if (props-shown?)
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(begin (outer:insert "<" style:green (lambda _ (show #f)))
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(outer:insert properties-snip))
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(begin (outer:insert ">" style:green (lambda _ (show #t)))))
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(send* -outer
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(change-style (make-object style-delta% 'change-alignment 'top)
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0
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(send -outer last-position))
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(lock #t)
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(end-edit-sequence)))
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(define/private outer:insert
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(case-lambda
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[(obj)
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(outer:insert obj style:normal)]
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[(text style)
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(outer:insert text style #f)]
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[(text style clickback)
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(let ([start (send -outer last-position)])
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(send -outer insert text)
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(let ([end (send -outer last-position)])
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(send -outer change-style style start end #f)
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(when clickback
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(send -outer set-clickback start end clickback))))]))
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;; Snip methods
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(define/override (copy)
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(new syntax-snip% (syntax stx)))
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(define/override (write stream)
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(send stream put (string->bytes/utf-8 (format "~s" (marshall-syntax stx)))))
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(define/public (read-special src line col pos)
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(send the-syntax-snip read-special src line col pos))
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(define/private (find-primary-partition)
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#;(define editor (send (get-admin) get-editor))
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(new-bound-partition))
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;; syntax-properties-controller methods
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(define properties-shown? #f)
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(define/public (props-shown?)
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properties-shown?)
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(define/public (show ?)
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(set! properties-shown? ?)
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(refresh))
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(define/public (set-syntax stx)
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(send properties-snip set-syntax stx))
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(refresh)
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(send -outer hide-caret #t)
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(send -outer lock #t)
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))
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;; independent-properties-controller%
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#;
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(define independent-properties-controller%
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(class* object% (syntax-properties-controller<%>)
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(init-field controller)
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(init-field ((stx syntax) #f))
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;; Properties display
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(define parent
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(new frame% (label "Properties") (height (pref:height))
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(width (floor (* (pref:props-percentage) (pref:width))))))
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(define pv (new properties-view% (parent parent)))
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(define/private (show-properties)
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(unless (send parent is-shown?)
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(send parent show #t)))
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(define/public (set-syntax stx)
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(send pv set-syntax stx))
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(define/public (show ?)
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(send parent show ?))
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(define/public (props-shown?)
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(send parent is-shown?))
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(super-new)))
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#;
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(define snip-keymap-extension@
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(unit
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(import (prefix pre: keymap^))
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(export keymap^)
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(define syntax-keymap%
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(class pre:syntax-keymap%
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(init-field snip)
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(inherit add-function)
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(super-new (controller (send snip get-controller)))
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(add-function "show-syntax-properties"
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(lambda (i e)
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(send snip show-props)))))))
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(define style:normal (make-object style-delta% 'change-normal))
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(define style:hyper
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(let ([s (make-object style-delta% 'change-normal)])
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(send s set-delta 'change-toggle-underline)
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(send s set-delta-foreground "blue")
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s))
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(define style:green
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(let ([s (make-object style-delta% 'change-normal)])
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(send s set-delta-foreground "darkgreen")
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s))
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(define style:bold
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(let ([s (make-object style-delta% 'change-normal)])
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(send s set-delta 'change-bold)
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s))
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(define (show-icon)
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(make-object image-snip%
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(build-path (collection-path "icons") "turn-up.png")))
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(define (hide-icon)
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(make-object image-snip%
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(build-path (collection-path "icons") "turn-down.png")))
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(define (show-properties-icon)
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(make-object image-snip%
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(build-path (collection-path "icons") "syncheck.png")))
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;; marshall-syntax : syntax -> printable
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(define (marshall-syntax stx)
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(unless (syntax? stx)
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(error 'marshall-syntax "not syntax: ~s\n" stx))
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`(syntax
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(source ,(marshall-object (syntax-source stx)))
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(source-module ,(marshall-object (syntax-source-module stx)))
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(position ,(syntax-position stx))
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(line ,(syntax-line stx))
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(column ,(syntax-column stx))
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(span ,(syntax-span stx))
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(original? ,(syntax-original? stx))
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(properties
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,@(map (λ (x) `(,x ,(marshall-object (syntax-property stx x))))
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(syntax-property-symbol-keys stx)))
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(contents
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,(marshall-object (syntax-e stx)))))
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;; marshall-object : any -> printable
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;; really only intended for use with marshall-syntax
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(define (marshall-object obj)
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(cond
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[(syntax? obj) (marshall-syntax obj)]
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[(pair? obj)
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`(pair ,(cons (marshall-object (car obj))
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(marshall-object (cdr obj))))]
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[(or (symbol? obj)
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(char? obj)
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(number? obj)
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(string? obj)
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(boolean? obj)
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(null? obj))
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`(other ,obj)]
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[else (string->symbol (format "unknown-object: ~s" obj))]))
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;; COPIED AND MODIFIED from mrlib/syntax-browser.ss
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#;
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(define syntax-snipclass%
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(class snip-class%
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(define/override (read stream)
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(make-object syntax-snip%
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(unmarshall-syntax (read-from-string (send stream get-bytes)))))
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(super-instantiate ())))
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#;(define snip-class (make-object syntax-snipclass%))
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#;(send snip-class set-version 2)
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#;(send snip-class set-classname
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(format "~s" '(lib "implementation.ss" "macro-debugger" "syntax-browser")))
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#;(send (get-the-snip-class-list) add snip-class)
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(define (unmarshall-syntax stx)
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(match stx
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[`(syntax
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(source ,src)
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(source-module ,source-module) ;; marshalling
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(position ,pos)
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(line ,line)
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(column ,col)
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(span ,span)
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(original? ,original?)
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(properties ,@(properties ...))
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(contents ,contents))
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(foldl
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add-properties
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(datum->syntax-object
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#'here ;; ack
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(unmarshall-object contents)
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(list (unmarshall-object src)
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line
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col
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pos
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span))
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properties)]
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[else #'unknown-syntax-object]))
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;; add-properties : syntax any -> syntax
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(define (add-properties prop-spec stx)
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(match prop-spec
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[`(,(and sym (? symbol?))
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,prop)
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(syntax-property stx sym (unmarshall-object prop))]
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[else stx]))
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(define (unmarshall-object obj)
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(let ([unknown (lambda () (string->symbol (format "unknown: ~s" obj)))])
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(if (and (pair? obj)
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(symbol? (car obj)))
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(case (car obj)
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[(pair)
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(if (pair? (cdr obj))
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(let ([raw-obj (cadr obj)])
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(if (pair? raw-obj)
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(cons (unmarshall-object (car raw-obj))
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(unmarshall-object (cdr raw-obj)))
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(unknown)))
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(unknown))]
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[(other)
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(if (pair? (cdr obj))
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(cadr obj)
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(unknown))]
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[(syntax) (unmarshall-syntax obj)]
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[else (unknown)])
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(unknown))))
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)
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