greggirwin

Red [
	title: "A simple flat-block db model."
	author: "Gregg Irwin"
	url: https://gist.github.com/greggirwin/d990fff8cf55d2aaa53bd23a0e47acde
	notes: {
		Mocked up in response to chat that came up based on `remove/key`
		being case sensitive, and how Reducers can/should use flat blocks.

		https://github.com/red/red/issues/5652
		

greggirwin

Red []

;styles: keys-of system/view/vid/styles
style-name: [
	'base | 'button | 'text | 'field | 'area | 'rich-text | 'toggle
	| 'check | 'radio | 'progress | 'slider | 'scroller | 'camera
	| 'calendar | 'text-list | 'drop-list | 'drop-down | 'panel
	| 'group-box | 'tab-panel | 'h1 | 'h2 | 'h3 | 'h4 | 'h5 | 'box
	| 'image
]

greggirwin

Red []

; A quick hack for capturing VID set-words into a context, and limiting their global damange.

view-ctx: function [
	"View a layout, binding set-words in it to a returned context."
	spec [block!] "VID layout spec; LAY will refer to the root of the face tree in the result."
][
	words: collect-words/set/deep spec		; what about draw words though?

greggirwin

Comment {
APPLY is coming! To keep it simple, it won't support named args in
the initial release. These are experiments for how we can think of
ways to do that at the mezz level and play.

APPLY is an avanced func and may be used in both very dynamic code
(think thunks) but also code that requires high performance. We may
not get all the features to do both without some effort, but some
of the ideas here may give you clues about how to do things to your
taste, that meets your needs.

greggirwin

Red []

do %step.red

; Wrapper that hides the detail of whether a value is indirectly referenced.
arg-val: func [arg][
	either any [any-word? arg  any-path? arg] [get arg][arg]
]

test-step: func [arg /by amt][

greggirwin

Red []

; We should give our survey a name so we can identify
; responses for it.

survey-name: "Ren datatype survey"

types: [
    none
    true

greggirwin

; This was developed for Windows only, as far as specific names
; the OS uses. For cross-platform use we need to add lists of
; reserved names, and maybe more complex rule checks. It also
; takes a "lowest common denomitator" approach, in that it doesn't
; express illegal chars by OS, the idea being that a good goal is
; to create portable filenames.
safe-filename: function [
	"Changes invalid characters to underscores, limits length; reserved OS names return none."
	file [any-string!] "Unqualified filenames."
	/local mark

greggirwin

Red []

_5-panes-ctx: context [
	layout-spec: none									; layout spec we build
	p-top: p-left: p-center: p-right: p-bottom: none    ; area panels

	def-panel-sizes: [top 50 left 200 right 150 bottom 25]
	sizes: []											; panel sizes used in layout

	win-sizes: compose [								;!! may be better to separate default

greggirwin

Red	[]

context	[
	list: none
	last-event:	none
	
	trap: function [
		event	[word!]									;--	event name
		input	[string! binary!]						;--	input series at	current	loading	position
		type	[datatype! word! none!]					;--	type of	token or value currently processed.

greggirwin

; Go lang style defer experiment

deferreds-ctx: context [
    stack: []
    cur-stack:	does [last stack]					; current function's stack
    push-frame:	does [append/only stack copy []]	; new stack frame
    pop-frame:	does [take/last stack]				; drop last stack frame
    ;push-defer:	func [blk [block!]] [append/only cur-stack blk]	; LIFO
    push-defer:	func [blk [block!]] [insert/only cur-stack blk]		; FIFO
    do-deferreds: does [foreach blk cur-stack [attempt [do blk]]]