1 ! Copyright (C) 2006, 2011 Slava Pestov
2 ! See http://factorcode.org/license.txt for BSD license.
3 USING: accessors arrays assocs calendar colors combinators
4 combinators.short-circuit documents documents.elements fonts fry
5 grouping kernel literals locals make math math.functions
6 math.order ranges math.rectangles math.vectors models
7 models.arrow namespaces opengl opengl.gl sequences sorting
8 splitting system timers ui.baseline-alignment ui.clipboards
9 ui.commands ui.gadgets ui.gadgets.borders
10 ui.gadgets.line-support ui.gadgets.menus ui.gadgets.scrollers
11 prettyprint math.parser
12 ui.gestures ui.pens.solid ui.render ui.text ui.theme unicode variables ;
13 IN: ui.gadgets.editors
15 TUPLE: editor < line-gadget
18 focused? blink blink-timer
22 preedit-selected-start
24 preedit-selection-mode?
27 M: editor preedit? preedit-start>> ;
29 SYMBOLS: +line+ +box+ +filled+ ;
30 GLOBAL: caret-is-shape
31 +line+ caret-is-shape set-global
33 : <caret-shape> ( -- shape ) caret-is-shape get-global <model> ;
37 : <loc> ( -- loc ) { 0 0 } <model> ;
39 : init-editor-locs ( editor -- editor )
41 <caret-shape> >>caret-shape
44 : editor-theme ( editor -- editor )
45 monospace-font >>font ; inline
49 : new-editor ( class -- editor )
55 : <editor> ( -- editor )
60 : activate-editor-model ( editor model -- )
62 [ nip activate-model ]
63 [ swap model>> add-loc ] 2tri ;
65 : deactivate-editor-model ( editor model -- )
67 [ nip deactivate-model ]
68 [ swap model>> remove-loc ] 2tri ;
70 : blink-caret ( editor -- )
71 [ not ] change-blink relayout-1 ;
73 SYMBOL: blink-interval
75 750 milliseconds blink-interval set-global
77 : stop-blinking ( editor -- )
78 blink-timer>> [ stop-timer ] when* ;
80 : start-blinking ( editor -- )
82 blink-timer>> [ restart-timer ] when* ;
84 : restart-blinking ( editor -- )
94 [ dup caret>> activate-editor-model ]
95 [ dup mark>> activate-editor-model ]
98 '[ _ blink-caret ] blink-interval get dup <timer>
103 [ [ stop-blinking ] [ f >>blink-timer drop ] bi ]
104 [ dup caret>> deactivate-editor-model ]
105 [ dup mark>> deactivate-editor-model ] tri ;
107 : editor-caret ( editor -- loc ) caret>> value>> ;
109 : editor-mark ( editor -- loc ) mark>> value>> ;
111 : set-caret ( loc editor -- )
112 [ model>> validate-loc ] [ caret>> ] bi set-model ;
114 : set-mark ( loc editor -- )
115 [ model>> validate-loc ] [ mark>> ] bi set-model ;
117 : change-caret ( editor quot: ( loc document -- newloc ) -- )
118 [ [ [ editor-caret ] [ model>> ] bi ] dip call ] [ drop ] 2bi
121 : mark>caret ( editor -- )
122 [ editor-caret ] [ mark>> ] bi set-model ;
124 : change-caret&mark ( editor quot: ( loc document -- newloc ) -- )
125 [ change-caret ] [ drop mark>caret ] 2bi ; inline
127 : editor-line ( n editor -- str ) control-value nth ;
129 :: point>loc ( point editor -- loc )
130 point second editor y>line {
131 { [ dup 0 < ] [ drop { 0 0 } ] }
132 { [ dup editor model>> last-line# > ] [ drop editor model>> doc-end ] }
142 : clicked-loc ( editor -- loc )
143 [ hand-rel ] keep point>loc ;
145 : click-loc ( editor model -- )
146 [ clicked-loc ] dip set-model ;
148 : focus-editor ( editor -- )
149 [ start-blinking ] [ t >>focused? relayout-1 ] bi ;
151 : unfocus-editor ( editor -- )
152 [ stop-blinking ] [ f >>focused? relayout-1 ] bi ;
154 : loc>x ( loc editor -- x )
155 [ first2 swap ] dip [ editor-line ] [ font>> ] bi swap offset>x gl-round ;
157 : loc>point ( loc editor -- loc )
158 [ loc>x ] [ [ first ] dip line>y gl-ceiling ] 2bi 2array ;
160 : caret-loc ( editor -- loc )
161 [ editor-caret ] keep loc>point ;
163 : caret-dim ( editor -- dim )
164 [ 0 ] dip line-height 2array ;
166 : scroll>caret ( editor -- )
167 dup graft-state>> second [
169 [ caret-loc ] [ caret-dim { 2 1 } v+ ] bi <rect>
175 : draw-caret? ( editor -- ? )
176 { [ focused?>> ] [ blink>> ]
177 [ [ preedit? not ] [ preedit-selection-mode?>> not ] bi or ] } 1&& ;
179 : (caret-location) ( editor -- loc dim )
180 [ caret-loc ] [ caret-dim ] bi ;
182 : (caret-rect) ( dim -- newdim )
183 second [ 2 / ] keep 2array ;
185 : draw-caret-line ( editor -- )
186 (caret-location) over v+ gl-line ;
188 : draw-caret-rect ( editor -- )
189 (caret-location) (caret-rect) gl-rect ;
191 : draw-caret-rect-filled ( editor -- )
192 (caret-location) (caret-rect) gl-fill-rect ;
194 : draw-caret-shape ( editor -- )
195 dup caret-shape>> value>>
197 { +box+ [ draw-caret-rect ] }
198 { +filled+ [ draw-caret-rect-filled ] }
199 [ drop draw-caret-line ]
203 : draw-caret ( editor -- )
205 [ editor-caret-color gl-color ] dip
209 :: draw-preedit-underlines ( editor -- )
210 editor [ preedit? ] [ preedit-underlines>> ] bi and [
211 editor [ caret-loc second ] [ caret-dim second ] bi + 2.0 - :> y
212 editor editor-caret first :> row
213 editor font>> foreground>> gl-color
214 editor preedit-underlines>> [
216 dup second glLineWidth
217 first editor preedit-start>> second dup 2array v+ first2
218 [ row swap 2array editor loc>x 1.0 + y 2array ]
219 [ row swap 2array editor loc>x 1.0 - y 2array ]
226 : selection-start/end ( editor -- start end )
227 [ editor-mark ] [ editor-caret ] bi sort-pair ;
229 SYMBOL: selected-lines
231 TUPLE: selected-line start end first? last? ;
233 : compute-selection ( editor -- assoc )
234 dup gadget-selection? [
235 [ selection-start/end [ [ first ] bi@ [a..b] ] [ ] 2bi ]
237 '[ [ _ _ ] [ _ start/end-on-line ] bi 2array ] H{ } map>assoc
240 :: draw-selection ( line pair editor -- )
241 pair [ editor font>> line offset>x gl-round ] map :> pair
242 editor selection-color>> gl-color
244 pair second pair first - 1 max editor line-height 2array
247 : draw-unselected-line ( line editor -- )
248 font>> swap draw-text ;
250 : draw-selected-line ( line pair editor -- )
252 [ nip draw-unselected-line ] [ draw-selection ] 3bi
256 [ [ first2 ] [ selection-color>> ] bi* <selection> ]
257 [ draw-unselected-line ] bi
261 : draw-default-text? ( editor -- ? )
262 { [ default-text>> ] [ model>> doc-string empty? ] } 1&& ;
264 : draw-default-text ( editor -- )
265 [ font>> clone line-color >>foreground ]
266 [ default-text>> ] bi draw-text ;
271 [ selected-lines get at ] dip over
272 [ draw-selected-line ] [ nip draw-unselected-line ] if ;
274 M: editor draw-gadget*
275 dup draw-default-text? [
276 [ draw-default-text ] [ draw-caret ] [ draw-preedit-underlines ] tri
278 dup compute-selection selected-lines [
279 [ draw-lines ] [ draw-caret ] [ draw-preedit-underlines ] tri
284 [ call-next-method ] keep ! at least as big as our min-rows/min-cols
285 ! Add some space for the caret.
286 [ font>> ] keep dup draw-default-text?
287 [ default-text>> ] [ control-value ] if
288 text-dim { 1 0 } v+ vmax ;
290 M: editor baseline font>> font-metrics ascent>> ;
292 M: editor cap-height font>> font-metrics cap-height>> ;
296 : contents-changed ( model editor -- )
297 [ [ nip caret>> ] [ drop ] 2bi '[ _ validate-loc ] (change-model) ]
298 [ [ nip mark>> ] [ drop ] 2bi '[ _ validate-loc ] (change-model) ]
299 [ nip relayout ] 2tri ;
301 : caret/mark-changed ( editor -- )
302 [ restart-blinking ] keep scroll>caret ;
306 M: editor model-changed
308 { [ 2dup model>> eq? ] [ contents-changed ] }
309 { [ 2dup caret>> eq? ] [ nip caret/mark-changed ] }
310 { [ 2dup mark>> eq? ] [ nip caret/mark-changed ] }
313 M: editor gadget-selection?
314 selection-start/end = not ;
316 M: editor gadget-selection
317 [ selection-start/end ] [ model>> ] bi doc-range ;
319 : remove-selection ( editor -- )
320 [ selection-start/end ] [ model>> ] bi remove-doc-range ;
322 M: editor user-input*
323 [ selection-start/end ] [ model>> ] bi set-doc-range t ;
325 M: editor temp-im-input
326 [ selection-start/end ] [ model>> ] bi set-doc-range* t ;
328 : editor-string ( editor -- string )
331 : set-editor-string ( string editor -- )
332 model>> set-doc-string ;
334 M: editor gadget-text* editor-string % ;
336 : extend-selection ( editor -- )
339 [ dup caret>> click-loc ] tri ;
341 : remove-preedit-text ( editor -- )
342 { [ preedit-start>> ] [ set-caret ]
343 [ preedit-end>> ] [ set-mark ]
347 : remove-preedit-info ( editor -- )
350 f >>preedit-selected-start
351 f >>preedit-selected-end
352 f >>preedit-selection-mode?
353 f >>preedit-underlines
356 : mouse-elt ( -- element )
360 } at one-line-elt or ;
362 : drag-direction? ( loc editor -- ? )
363 editor-mark before? ;
365 : drag-selection-caret ( loc editor element -- loc )
367 [ drag-direction? ] [ model>> ] 2bi
368 ] dip prev/next-elt ? ;
370 : drag-selection-mark ( loc editor element -- loc )
372 [ drag-direction? not ]
375 ] dip prev/next-elt ? ;
377 : drag-caret&mark ( editor -- caret mark )
378 [ clicked-loc ] [ mouse-elt ] bi
379 [ drag-selection-caret ]
380 [ drag-selection-mark ] 3bi ;
382 : drag-selection ( editor -- )
385 [ caret>> set-model ] tri ;
387 : editor-cut ( editor clipboard -- )
388 [ gadget-copy ] [ drop remove-selection ] 2bi ;
390 : delete/backspace ( editor quot -- )
391 over gadget-selection? [
392 drop remove-selection
394 [ [ [ editor-caret ] [ model>> ] bi ] dip call ]
399 : editor-delete ( editor elt -- )
400 '[ dupd _ next-elt ] delete/backspace ;
402 : editor-backspace ( editor elt -- )
403 '[ over [ _ prev-elt ] dip ] delete/backspace ;
405 : editor-select-prev ( editor elt -- )
406 '[ _ prev-elt ] change-caret ;
408 : editor-prev ( editor elt -- )
409 [ editor-select-prev ] [ drop mark>caret ] 2bi ;
411 : editor-select-next ( editor elt -- )
412 '[ _ next-elt ] change-caret ;
414 : editor-next ( editor elt -- )
415 dupd editor-select-next mark>caret ;
417 : editor-select ( from to editor -- )
418 [ mark>> set-model ] [ caret>> set-model ] bi-curry bi* ;
420 : select-elt ( editor elt -- )
421 [ [ [ editor-caret ] [ model>> ] bi ] dip prev/next-elt ] [ drop ] 2bi
424 : start-of-document ( editor -- ) doc-elt editor-prev ;
426 : end-of-document ( editor -- ) doc-elt editor-next ;
428 : position-caret ( editor -- )
429 mouse-elt dup one-char-elt =
430 [ drop dup extend-selection dup mark>> click-loc ]
433 : delete-previous-character ( editor -- )
434 char-elt editor-backspace ;
436 : delete-next-character ( editor -- )
437 char-elt editor-delete ;
439 : delete-previous-word ( editor -- )
440 word-elt editor-backspace ;
442 : delete-next-word ( editor -- )
443 word-elt editor-delete ;
445 : delete-to-start-of-line ( editor -- )
446 one-line-elt editor-backspace ;
448 : delete-to-end-of-line ( editor -- )
449 one-line-elt editor-delete ;
451 : delete-to-start-of-document ( editor -- )
452 doc-elt editor-delete ;
454 : delete-to-end-of-document ( editor -- )
455 doc-elt editor-delete ;
457 : com-undo ( editor -- ) model>> undo ;
459 : com-redo ( editor -- ) model>> redo ;
462 { undo-action com-undo }
463 { redo-action com-redo }
464 { T{ key-down f f "DELETE" } delete-next-character }
465 { T{ key-down f f "BACKSPACE" } delete-previous-character }
466 { T{ key-down f { S+ } "DELETE" } delete-next-character }
467 { T{ key-down f { S+ } "BACKSPACE" } delete-previous-character }
468 { T{ key-down f ${ os macosx? A+ C+ ? } "DELETE" } delete-next-word }
469 { T{ key-down f ${ os macosx? A+ C+ ? } "BACKSPACE" } delete-previous-word }
470 { T{ key-down f ${ os macosx? M+ A+ ? } "DELETE" } delete-to-end-of-line }
471 { T{ key-down f ${ os macosx? M+ A+ ? } "BACKSPACE" } delete-to-start-of-line }
473 { T{ key-down f { C+ } "DELETE" } delete-next-character }
474 { T{ key-down f { C+ } "BACKSPACE" } delete-previous-character }
475 } append ] when define-command-map
477 : com-paste ( editor -- ) clipboard get paste-clipboard ;
479 : paste-selection ( editor -- ) ui.clipboards:selection get paste-clipboard ;
481 : com-cut ( editor -- ) clipboard get editor-cut ;
483 editor "clipboard" f {
484 { cut-action com-cut }
485 { copy-action com-copy }
486 { paste-action com-paste }
487 { T{ button-up } com-copy-selection }
488 { T{ button-up f f 2 } paste-selection }
491 : previous-character ( editor -- )
492 dup gadget-selection? [
493 dup selection-start/end drop
494 over set-caret mark>caret
499 : next-character ( editor -- )
500 dup gadget-selection? [
501 dup selection-start/end nip
502 over set-caret mark>caret
507 : previous-word ( editor -- ) word-elt editor-prev ;
509 : next-word ( editor -- ) word-elt editor-next ;
511 : start-of-line ( editor -- ) one-line-elt editor-prev ;
513 : end-of-line ( editor -- ) one-line-elt editor-next ;
515 : start-of-paragraph ( editor -- ) paragraph-elt editor-prev ;
517 : end-of-paragraph ( editor -- ) paragraph-elt editor-next ;
519 editor "caret-motion" f {
520 { T{ button-down } position-caret }
521 { T{ key-down f f "LEFT" } previous-character }
522 { T{ key-down f f "RIGHT" } next-character }
523 { T{ key-down f ${ os macosx? A+ C+ ? } "LEFT" } previous-word }
524 { T{ key-down f ${ os macosx? A+ C+ ? } "RIGHT" } next-word }
525 { T{ key-down f f "HOME" } start-of-line }
526 { T{ key-down f f "END" } end-of-line }
527 { T{ key-down f ${ os macosx? A+ C+ ? } "UP" } start-of-paragraph }
528 { T{ key-down f ${ os macosx? A+ C+ ? } "DOWN" } end-of-paragraph }
529 { T{ key-down f ${ os macosx? A+ C+ ? } "HOME" } start-of-document }
530 { T{ key-down f ${ os macosx? A+ C+ ? } "END" } end-of-document }
532 { T{ key-down f { M+ } "LEFT" } start-of-line }
533 { T{ key-down f { M+ } "RIGHT" } end-of-line }
534 { T{ key-down f { M+ } "UP" } start-of-paragraph }
535 { T{ key-down f { M+ } "DOWN" } end-of-paragraph }
536 { T{ key-down f { M+ } "HOME" } start-of-document }
537 { T{ key-down f { M+ } "END" } end-of-document }
538 } append ] when define-command-map
540 : clear-editor ( editor -- )
543 : select-all ( editor -- ) doc-elt select-elt ;
545 : select-line ( editor -- ) one-line-elt select-elt ;
547 : select-word ( editor -- ) one-word-elt select-elt ;
549 : selected-token ( editor -- string )
550 dup gadget-selection?
551 [ dup select-word ] unless
554 : select-previous-character ( editor -- )
555 char-elt editor-select-prev ;
557 : select-next-character ( editor -- )
558 char-elt editor-select-next ;
560 : select-previous-word ( editor -- )
561 word-elt editor-select-prev ;
563 : select-next-word ( editor -- )
564 word-elt editor-select-next ;
566 : select-start-of-line ( editor -- )
567 one-line-elt editor-select-prev ;
569 : select-end-of-line ( editor -- )
570 one-line-elt editor-select-next ;
572 : select-start-of-paragraph ( editor -- )
573 paragraph-elt editor-select-prev ;
575 : select-end-of-paragraph ( editor -- )
576 paragraph-elt editor-select-next ;
578 : select-start-of-document ( editor -- )
579 doc-elt editor-select-prev ;
581 : select-end-of-document ( editor -- )
582 doc-elt editor-select-next ;
584 editor "selection" f {
585 { T{ button-down f { S+ } 1 } extend-selection }
586 { T{ button-up f { S+ } 1 } com-copy-selection }
587 { T{ drag { # 1 } } drag-selection }
588 { gain-focus focus-editor }
589 { lose-focus unfocus-editor }
590 { delete-action remove-selection }
591 { select-all-action select-all }
592 { T{ key-down f { C+ } "l" } select-line }
593 { T{ key-down f { S+ } "LEFT" } select-previous-character }
594 { T{ key-down f { S+ } "RIGHT" } select-next-character }
595 { T{ key-down f ${ S+ os macosx? A+ C+ ? } "LEFT" } select-previous-word }
596 { T{ key-down f ${ S+ os macosx? A+ C+ ? } "RIGHT" } select-next-word }
597 { T{ key-down f { S+ } "HOME" } select-start-of-line }
598 { T{ key-down f { S+ } "END" } select-end-of-line }
599 { T{ key-down f ${ S+ os macosx? A+ C+ ? } "UP" } select-start-of-paragraph }
600 { T{ key-down f ${ S+ os macosx? A+ C+ ? } "DOWN" } select-end-of-paragraph }
601 { T{ key-down f ${ S+ os macosx? A+ C+ ? } "HOME" } select-start-of-document }
602 { T{ key-down f ${ S+ os macosx? A+ C+ ? } "END" } select-end-of-document }
604 { T{ key-down f { S+ M+ } "LEFT" } select-start-of-line }
605 { T{ key-down f { S+ M+ } "RIGHT" } select-end-of-line }
606 { T{ key-down f { S+ M+ } "UP" } select-start-of-paragraph }
607 { T{ key-down f { S+ M+ } "DOWN" } select-end-of-paragraph }
608 { T{ key-down f { S+ M+ } "HOME" } select-start-of-document }
609 { T{ key-down f { S+ M+ } "END" } select-end-of-document }
610 } append ] when define-command-map
612 : editor-menu ( editor -- )
620 } show-commands-menu ;
623 ! { T{ button-down f f 2 } paste-selection }
624 { T{ button-down f f 3 } editor-menu }
628 TUPLE: multiline-editor < editor ;
630 : <multiline-editor> ( -- editor )
631 multiline-editor new-editor ;
633 : previous-line ( editor -- ) line-elt editor-prev ;
635 : next-line ( editor -- ) line-elt editor-next ;
639 : page-elt ( editor n -- editor element )
640 over visible-lines 1 - min 1 max <page-elt> ;
642 : prev-page-elt ( editor -- editor element )
643 dup editor-caret first page-elt ;
645 : next-page-elt ( editor -- editor element )
646 dup [ control-value length 1 - ] [ editor-caret first ] bi - page-elt ;
650 : previous-page ( editor -- ) prev-page-elt editor-prev ;
652 : next-page ( editor -- ) next-page-elt editor-next ;
654 : select-previous-line ( editor -- ) line-elt editor-select-prev ;
656 : select-next-line ( editor -- ) line-elt editor-select-next ;
658 : select-previous-page ( editor -- ) prev-page-elt editor-select-prev ;
660 : select-next-page ( editor -- ) next-page-elt editor-select-next ;
662 : insert-newline ( editor -- )
663 "\n" swap user-input* drop ;
665 : change-selection ( editor quot -- )
666 '[ gadget-selection @ ] [ user-input* drop ] bi ; inline
670 : join-lines ( string -- string' )
672 [ rest-slice [ [ blank? ] trim-head-slice ] map! drop ]
673 [ but-last-slice [ [ blank? ] trim-tail-slice ] map! drop ]
677 : last-line? ( document line -- ? )
678 [ last-line# ] dip = ;
680 : prev-line-and-this ( document line -- start end )
681 swap [ drop 1 - 0 2array ] [ line-end ] 2bi ;
683 : join-with-prev ( document line -- )
684 [ prev-line-and-this ] [ drop ] 2bi
685 [ join-lines ] change-doc-range ;
687 : this-line-and-next ( document line -- start end )
688 swap [ drop 0 2array ] [ [ 1 + ] dip line-end ] 2bi ;
690 : join-with-next ( document line -- )
691 [ this-line-and-next ] [ drop ] 2bi
692 [ join-lines ] change-doc-range ;
696 : com-join-lines ( editor -- )
697 dup gadget-selection?
698 [ [ join-lines ] change-selection ] [
699 [ model>> ] [ editor-caret first ] bi {
700 { [ over last-line# 0 = ] [ 2drop ] }
701 { [ 2dup last-line? ] [ join-with-prev ] }
706 multiline-editor "multiline" f {
707 { T{ key-down f f "UP" } previous-line }
708 { T{ key-down f f "DOWN" } next-line }
709 { T{ key-down f { S+ } "UP" } select-previous-line }
710 { T{ key-down f { S+ } "DOWN" } select-next-line }
711 { T{ key-down f f "PAGE_UP" } previous-page }
712 { T{ key-down f f "PAGE_DOWN" } next-page }
713 { T{ key-down f { S+ } "PAGE_UP" } select-previous-page }
714 { T{ key-down f { S+ } "PAGE_DOWN" } select-next-page }
715 { T{ key-down f f "RET" } insert-newline }
716 { T{ key-down f { S+ } "RET" } insert-newline }
717 { T{ key-down f f "ENTER" } insert-newline }
718 { T{ key-down f { S+ } "ENTER" } insert-newline }
719 { T{ key-down f { C+ } "j" } com-join-lines }
722 TUPLE: source-editor < multiline-editor ;
724 : <source-editor> ( -- editor )
725 source-editor new-editor ;
728 : <element-model> ( editor element -- model )
729 [ [ caret>> ] [ model>> ] bi ] dip
730 '[ _ _ elt-string ] <arrow> ;
732 ! Fields wrap an editor
733 TUPLE: field < border editor min-cols max-cols ;
737 : field-theme ( gadget -- gadget )
740 field-border-color <solid> >>boundary ; inline
742 : <field-border> ( gadget -- border )
743 border new-border field-theme ;
747 : new-field ( class -- gadget )
748 [ <editor> ] dip new-border
749 dup gadget-child >>editor
752 ! For line-gadget-width
753 M: field font>> editor>> font>> ;
757 [ editor>> pref-dim ]
758 [ [ line-gadget-width ] [ drop second ] 2bi 2array ]
759 tri border-pref-dim ;
761 M: field default-text>> editor>> default-text>> ;
763 M: field default-text<< editor>> default-text<< ;
765 TUPLE: model-field < field field-model ;
767 : <model-field> ( model -- gadget )
768 model-field new-field
771 M: model-field graft*
772 [ [ field-model>> value>> ] [ editor>> ] bi set-editor-string ]
773 [ dup editor>> model>> add-connection ]
776 M: model-field ungraft*
777 dup editor>> model>> remove-connection ;
779 M: model-field model-changed
780 nip [ editor>> editor-string ] [ field-model>> ] bi set-model ;
782 TUPLE: action-field < field quot ;
784 : <action-field> ( quot: ( string -- ) -- gadget )
785 action-field [ <editor> ] dip new-border
786 dup gadget-child >>editor
790 : invoke-action-field ( field -- )
791 [ editor>> editor-string ]
792 [ editor>> clear-editor ]
794 tri call( string -- ) ;
797 { T{ key-down f f "RET" } [ invoke-action-field ] }
800 : readline-bindings ( editor-class -- )
802 { T{ key-down f { C+ } "p" } previous-line }
803 { T{ key-down f { C+ } "n" } next-line }
804 { T{ key-down f { C+ } "b" } previous-character }
805 { T{ key-down f { C+ } "f" } next-character }
806 { T{ key-down f { C+ } "a" } start-of-line }
807 { T{ key-down f { C+ } "e" } end-of-line }
808 ! { T{ key-down f { C+ } "t" } transpose-character }
809 { T{ key-down f { C+ } "d" } delete-next-character }
810 { T{ key-down f { C+ } "h" } delete-previous-character }
811 { T{ key-down f { C+ } "u" } delete-to-start-of-line }
812 { T{ key-down f { C+ } "k" } delete-to-end-of-line }
813 { T{ key-down f { C+ } "w" } delete-previous-word }
814 } define-command-map ;