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Archive version of: rebol-dom.r ... version: 47 ... inetw3dm 10-May

Amendment note: Updated: version 0.9 Roadmap: more DOM funcitons, get and set by methods, Var search by index: arr[1] || Publicly available? Yes

    	File: %rebol-dom.r
    	Date: 05-01-2021
    	Title: "Dialect Object Model"
        author: daniel murrill
    	Purpose: {
             Use a recodable rebol function to create easy to follow blocks/series as 
             a Dialect Object Model  that allow different program languages to work together
             and viewed as HTML and VID. A parse alternative}

library: [
        author: daniel murrill
    	level: 'intermediate
        platform: 'all
        type: Dialect
        domain: [html vid css json js array]
        tested-under: 'windows
        support: none
        license: none
        see-also: %Mdlparser.r
        version: 0.9

my-dialect: [
lua-tbl = {[first] = "fred", [last] = "cougar"} 
#this-issue [{color: "purple" bgcolor: "orange"}]

var anObj = { 100: 'a', 2: 'b', 7: 'c', };

body: [{background-color="blue" text "white"} ]

p: [
    { "color":"#0000ff", "bgcolor":"yellow", "width" : "399", "height" : "100" "font-styles": "big" } 
 This is an example of an Dialect Oject Model
b: [
    {color = "Chocolate" bgcolor = "yellow"} 
 that can be written to look like json' html' javascript arrays' css'  
i: [
    {color = "green"} 
 VID' or plain old rebol ] 
 if you like.

hr: [{color="red" bgcolor="yellow"}]

div: [
    {width="399" bgcolor="orange"}  
b: [
    {color: "purple" bgcolor: "orange"} 
 Maybe it would be easier to write  
i: [
    {color: "green"}
 MakeDoc.r code but the purpose of this rebol DOM is']  

p: [
    {width "399" height= 200 
    style="color: red;  bgcolor: brown; border: 2x2;" 
b: [     
 to read or load as many well known dialects of coding styles as possible
 and write all of it as a single or seperate legible rebol series that's
 quickly manipulated' transcoded as html' and viewed as a VID. ]


document.: func [request-as][
		DOM: head DOM use*=*to-set-values 
		any [equal? block! type? data-node data-node: node: reduce [to-block data-node]]
		either equal? tag! type? data-node/1 [node-element: data-node/1
		node-element: data-node/1: build-tag to-block first parent-node: data-node
		var .style: = node-element style: :array-obj! .style: :array-obj!
                return node-element
return-tag-node: does [=: :equal? 
		any [equal? block! type? data-node 
		data-node: node: reduce [to-block strip-obj-chars-from data-node]]
		any [equal? tag! type? node-element: data-node/1 attempt [
		replace/all node-element [=] [] 
		node-element: data-node/1: build-tag to-block node-element]
.style: []
equal?: :=
DOM: DSL: html: window: end-tag: ""
data-node: parent-node: node: none

.body: .hr: .p: .b: .i: .tr: .ul: .li: .area: .table: .td: .button: .input: .div: .font: .span: 0
node-obj: node-element: node-name: *name: use-methods: attr-name: attr-value: none

check: func [select-this][return first parse select-this none]

strip-chars-from: func [node-name][
		foreach char elemt-chars: ["{" "}" "(" ")" {"} "/" "." "[" "]" "," ":" ";" "," "="
		replace/all node-name char " "

strip-obj-chars-from: func [node-name][
		trim node-name if equal? #"^"" node-name/1 [remove node-name]
		foreach [-char +char] obj-chars: [#"^/" " " {=""} {="undefined"} 
		"," "" {" : "} {: "} {":"} {: "} {":} {:} {" "} {" } { " } "" 
		"[" "" "]" "" {""} {"} {  "} "" ":" "" { =} {=} {=} " " "'" "" { #} { #","}
		 replace/all node-name -char +char

getnodename: func [node-name][
        DOM: head DOM =: :equal?
		either block! = type? node-name [
		insert/only data-node: [] node-name 
		any [attempt [node-element: data-node/1: build-tag data-node/1] node-element: data-node/1]
		node-name: to block! strip-chars-from form node-name
		count: any [attempt [count: pick find node-name integer! 1]1]
		nodename: to-word join  "." array-obj!: node-name/1 
		any [repeat ? count [data-node: first DOM: next node: find DOM nodename]
		print reduce ["node-name:" mold form node-name/1 "not found"]
		slf*: join node-name/1 count
		return either tag! = type? data-node/1 [node-element: data-node/1][node-element: data-node] 

setnodename: func [old-name new-name][
		any [equal? this-name: check strip-chars-from old-name check node-element getnodename old-name]
		any [equal? none not find node-element new-name try [
		replace node-element to string! this-name new-name 
		replace data-node to-tag join "/" this-name  to-tag join "/" new-name] 
getattribute: func [attr-name][
			attr-value: none
			do compose/deep [attr-value: array-obj![(attr-name)]]
			print any [[attr-name attr-value] ["node-attribute:" mold form attr-name "not found"]

setattribute: func [attr-name new-attr][
            *key: *value: none 
            do compose/deep [.style[(form attr-name )]]
            any [
            if *value [replace node-element attr-name new-attr]
            array-obj![repend [" " new-attr {="undefined"}]""]
            print ["Must get a parent-node with this attribute: " attr-name]]
	    ;get-attributes node-element attempt [set-attributes]

setattributevalue: func [attr-name attr-value][
            any [
            if find node-element key: form attr-name [
	    do compose/deep [.style[(key)] `= (attr-value)]]	
	    array-obj![repend [" " attr-name {="}attr-value {"}]""]
	    print ["Must get a parent-node with this attribute: " attr-name]
	    ] ;get-attributes node-element attempt [set-attributes]

getElementByTagName: func [Tag-Name selection [block!]][
            dom: head dom 
            repeat this first selection [
            node-element: first data-node: first dom: next find dom to-word join "." Tag-Name]
            if use-methods [use-attr-as-methods yes]
            use-methods: off        

look-deep-for: func [this in-node][
			foreach in-child-node in-node [
			if all [tag! = type? in-child-node find/any mold node-element: in-child-node this]eval-id:[print node-element break]
getElementById: func [my-id][in-child-node: none 
			id: copy join "id*" form my-id =: :equal?
			foreach in-parent-node dom [
		if block! = type? in-parent-node [any [look-deep-for id in-parent-node
			foreach in-sibling in-parent-node [
		if block! = type? in-sibling [look-deep-for id in-sibling 

querySelecter: func [css-Selecter][in-child-node: none 
			id: rejoin [css-Selecter "*="] =: :equal?
			foreach in-parent-node dom [
		if block! = type? in-parent-node [any [look-deep-for id in-parent-node
			foreach in-sibling in-parent-node [
		if block! = type? in-sibling [look-deep-for id in-sibling 

.innerHTML: func [element][
			children: copy/part next data-node find/last data-node tag!
			either equal? tag! type? node-element [
			any [empty? element replace data-node children element]
			][print "The node-element has no innerHTML"]
use*=*to-set-values: does [=: func [value][any [value]]]

use-attr-as-methods: func [maybe [logic!]][
			if maybe [foreach [-char +char][{" } {" .} ".." "."][replace/all node-element -char +char]
			replace node-element " " " ."
			use-methods: yes

node-list: []

*!: func [var][set to-word check form node-element none set to-set-word form var :array-obj!]

var: func [var-data][node-element:  variable: "" node-name: :variable
			any [
			attempt [variable: first parse node-element: var-data "=:, "]
			attempt [if equal? block! type? var-data [variable: first node-element: var-data]] 
			attempt [variable: var-data node-element: ""]
			use*=*to-set-values variable: to-string variable
			any [
			not empty? node-element any [find node-list variable append node-list reduce 
                        [variable node-element: any [attempt [do :variable] " "]]]] 
                        any [equal? tag! type? node-element append node-list reduce [form variable node-element]] 
                        set to-word variable array-obj!: func [key [block! word! string!]] node: compose/deep copy get-array-obj!
			attempt [if not find variable "." [do load to-string reduce ["set " #"'" variable ". :array-obj!"]]]
			use-methods: off

get-array-obj!: [
			if not equal? tag! type? node-element [node-element: select node-list  
                       (form variable) ] 
			if inline: find/any node-element { style*=*"} [
			replace node-element inline replace inline {"} " "]
			any [
                        if empty? form key [ 
                        return any [
                        if equal? tag! type? node-element [node-element]
			attempt [trim next find/tail node-element first parse node-element ":= ,"]
                        next node-element]
			attempt [*value: first this: next find parse strip-obj-chars-from copy node-element "[]{};= " *key: form key]
			attempt [*value: select node-element *key: key] 
                        attempt [do head insert next copy key [node-element join]] 
                        attempt [do form key] 
			if not find node-element key [none]] ;[print [*key "called"]]

`=: func[attr-value][
			 any [
			replace node-element form *value form attr-value
			replace node-element mold form *value mold attr-value
			replace node-element *value attr-value
			;replace/all node-element {""} " "

node-element: *node-name: *name: array-obj!: key: *key: *value: ""

markup-DOM: func [DSL][
use-methods: string-is-data: no 
		either block! = this-type?: type? DSL [
			DOM: copy/deep DSL: load replace/all replace/all mold DSL "__" " " {=""} {="undefined"}
			any [
			find DSL [rebol-DOM: [{DSL-type="html/block" type="text/html"}]]
			insert DSL [rebol-DOM: [{DSL-type="html/block" type="text/html"}]]]
get-data: func [data][	
		find-end-tag: find data get-word!
			either find-end-tag [
			replace data first find-end-tag  to-tag mold to-refinement first find-end-tag
			insert tail data to-tag join "/" any [*name *node-name]
repeat in-data data [
		if set-word! = type? in-data [*node-name: copy form in-data
			replace data in-data node-name: to-word join "." *node-name
		if string! = type? in-data [
			strip-obj-chars-from in-data 
			insert in-data next reform [node-name " "]
			child: build-tag to-block in-data 
			foreach [a b][{=" } "={" {" " } "} "][replace/all child a b]
			replace data in-data child
		if block! = type? in-data [
			get-next in-data

get-next: func [in-data][
	repeat data in-data [
		if set-word! = type? data [*name: copy form data
			replace in-data data node-name: to-word join "." *name
		if string! = type? data [
			strip-obj-chars-from data  
			insert data next reform [node-name " "]
			child: build-tag to-block data 
			foreach [a b][{=" } "={" {" " } "} "][replace/all child a b]
			replace in-data data child
		if block! = type? data [get-data data
			set to-word *node-name data]
                        find-end-tag: find in-data get-word!
			either find-end-tag[
			replace in-data first find-end-tag  to-tag mold to-refinement first find-end-tag
			insert tail in-data to-tag join "/" any [*node-name *name]
			clear *node-name]

repeat with-this-data DSL [
		if issue! = type? with-this-data [
			node-name: to-word join "." *name: copy form with-this-data
		if set-word! = type? with-this-data [
			replace DSL with-this-data node-name: to-word join "." *name: copy form with-this-data
		if word! = type? with-this-data [
			either '= = with-this-data [string-is-data: yes replace DSL with-this-data ""
			*name: copy form with-this-data
			replace DSL with-this-data node-name: to-word join "." with-this-data] 
			replace DSL reduce [node-name node-name] node-name
		if string! = type? with-this-data [
			either string-is-data [
			replace DSL with-this-data rejoin [node-name " " with-this-data]
			created-data: copy with-this-data
			strip-obj-chars-from created-data  
			insert created-data reduce [node-name " "]
			child: build-tag to-block remove created-data 
			foreach [a b][{=" } "={" {" " } "} "][replace/all child a b]
			replace DSL with-this-data child
			string-is-data: no
		if block! = type? with-this-data [ 
			get-data with-this-data
		if get-word! = type? with-this-data [
			replace DSL with-this-data to-tag mold to-refinement *name
		    replace/all dsl "" [] DOM: copy DSL
		    view center-face layout [
			backcolor black space 8
			h3 yellow "Need a Dialect Object Model as type! block"
			text gray "Your DSL type is: " text red bold form :this-type? 
			text gray "Some DOM functions will not work properly"]

format-this: func [node-element with-these-chars][
			foreach [-char +char] with-these-chars [
			replace/all node-element -char +char] 
			do last with-these-chars

as-js-object!: [
			{ #} "" {=" } ": {" { " } "} " 
			{="} {: "} "={" ": {" {""} {"} {" } {", } {", "} {"}
			[replace node-element " " ": {" 
			replace/all node-element { "} {: "}
			replace/all node-element "::" ":"
			append trim/tail node-element "}"]

return-html-dsl: does [
		html: copy form any [find head DOM "<body" head DOM]	
		replace/all replace/all html "<." "<" "' " ", "
		replace/all replace/all html "{" "<" "}" ">" 
		foreach n-name [
						".body " ".hr " ".p " ".b " ".i " ".? " 
						".tr " ".table " ".td " ".button " ".input "
						".div " ".ul " ".li " ".font " ".span "
						".img " ".a " ".strong " " ." ".hr " "lua-tbl "
						][replace/all html n-name " "
		append replace/all html </body> "" </body>
		html: any [find html "<body" html]

markup-DOM my-dialect

getElementById 'my-p1
document. getnodename {"div"[1]}getattribute "bgcolor"  
document. getnodename{("p")[2]} .style[width] `= "block-build"

setattributevalue('height) "1000"

    getattribute "height"

setnodename {hr[1]} "listview"

document. getnodename{("p")[1]}.style[font-styles] `= "block-build"

data-node: DOM/.p/.b 

document.(data-node).style[color] `= "bluberry" 

    setattribute('i-style) "silly" 

; Some examples of selecting keys and values set to variables as an array object.
; good to use with anything that's structured with {} , or "". It also can be used with [].
;IE (javascript, json objects/arrays.. lua table/arrays.. associative arrays etc.) 
;even DOM's and rebol data.

;The insert, remove, append, and lookup of a group (a node-element) by way of a Var (variable)
;is done as a data-node and syntactically as an associative array. The associattion of key 
;values is done by index in Rebol therefore there is no need for the overhead of objects or 
;multi.dim arrays. But the cool part is you can do what ever you like!

;You must use use*=*to-set-values before setting the first variable.
;it will use = to set any value to a variable (a set-word) 
;`= this literal equal is used to set values to keys. Feel free to use
;different function symbols for any !op function.  


;variables and there values (node-elements) that are'nt tags are sent and fetched from a
;node-list block for demo purposes. They will be appended to the DOM later.

;The variable name and the first word in it's value must be the same in order for
;the variable to be automatically bound to the node-element and array-obj!() function.

var hello: = {hello 100:"a" 2: "two words" 7="c"}


hello[2] `= "a to z"


;insert dots, "." to keys to be used as methods to get and set values with
;*use-methods: yes.  the to-methods function not created yet.sorry!.dot.

;use-methods: yes

var app: = document.(getElementByTagName('p)[2]).style[bgcolor]`="green"
    .innerHTML("Lets change this, shall we.")

;You must call/associate the array-obj! with this variable name
;because the variable name "app" and the node-name/TagName "p"
;are not the same.


;or app: :array-obj!

;the style.obj! is auto created by using the document. function


;is the same as calling, but without the cell(block) this time. 

app 'bgcolor

;Write values however. they are handled by the get-array-obj! as any-type.


app[.width] `= "curly quew-size"

app ('bgcolor) `= to-string [{'}purple']  ;or just {'purple'}

;when you need to create a variable to use with an array-obj!

poppy: {100:"a" street : "backside" 7="c"}

var 'poppy ;local or global hoisting: must move/reset to head.
head poppy[] 

var join {poppy2 } {200:"a" street : "backside" 7="c"}

;you don't need a set-word! variable. It will always be the first
;word followed by ": =", ": ", or " " found in the value (node-element)
;or a set word that has a value.
;you can access it with array-obj![]. But the value will change once
;a new VAR is created and you'll have to select it from the node-list.

poppy[street]`="old rover rd."

poppy[7] `= "cities"

;VAR values can also be set to an arrayed object.

var poppy3: = [poppy3 #100:"a" street: "backside" #7:"c"]

;Even though it's not the best idea to use integers as keys, you can.
;it can encourage mistakes when trying to get by index...  poppy2[3]
;But this is Rebol, so we will roll with this...
;You must always start cell number keys with the pound sign. "#"

poppy3[street:]`= "old rover rd."

poppy3[#7:]`= "cities"

;DOM variables are renamed to start with a dot "." so not to be confused with words.
;this will change in the future. All DOM Var's will be type! set-word!.

;Remember when calling a node-name and using that name as the variable,

var .anObj: = getnodename "anobj"

;you dont have to call/associate the array-obj! with this variable name
;but the variable name must began with a dot. IE "."


;but with 

var anObj: = getnodename "anobj" 

;you do

*![anObj]  ;or anObj: :array-obj!

;after calling some variable[key]/array-obj![key], you can replace the key and value.

replace replace node-element *key 'this-key *value {'some-value'}


var 'try-this 

try-this.[insert (add 50 50) ","]


try-this.[append ("new-value")","]

try-this[.innerHTML("change me please") ""]

;a roadmap for javascripting with the Dialect Object Model (DOM).

;A quick way to change op! functions between rebol and javascript.

js-op!: does [x: :* *: :do console.log: :print var 'use js-do: :js-op!] 
reb-op!: does [*: :x =: :equal? reb-do: :reb-op!]

;This code...

function welcomeSite() {
  siteMessage = "Welcome to the...";
  var siteMessage;

siteMessage.append("Rebolution") siteMessage

;Is changed to this code...


'function! welcomeSite: *{
     siteMessage: = "Welcome to the... ";
     Message-type: "Welcome"
     do reb-op! alert(siteMessage)
     var 'siteMessage;

;Hey you can load welcomeSite from a DOM or files with variables, functions, key-values or Rebol code:


;to use the welcomeSite Message-type in your code.

    var say-hi-to: = Message-type
    console.log(reduce ["This is a message to" say-hi-to "you."]);
siteMessage.[append("Rebolution.")#"^/"] siteMessage.[print]

var first-obj: = {first-obj: first-name: "Brigsby" last-name: "Backfort"}

var second-obj: = {second-obj: first-name: "Krystal" last-name: "Frontbunker"}

first-obj[last-name]`="FortBack"  first-obj[]

second-obj[last-name]`="Bunkerfront"  second-obj[]

Var contacts: = {Bestfriend: "[{"first": "Besty", "last": "Bestest", "number": 777-9211}]"}

;Does Var persist if not destroyed? YES.

;and then back to Rebol

reb-do 2 * 2

;Create a DOM from a nested javascript object DSL, search and update.
;A return-js-object-dsl() function will return the new js-object.
;Mold blocks and load strings to do quick formating like remove all ",".
markup-DOM load replace/all {data: [
    fullName: "James Zhan",
    address: {
        city: "Shenzhen",
        state: {
            name: "Guangdone",
            abbr: "CN""
        country: {
            local-name: "Guangdone",
            abbr: "CN"
			id: "jazzy"
    hobbies: ["coding", "reading"],
    projects: [
        { name: "form2json", language: "javascript", popular: true },
        { name: "peony", language: "ruby" }
} "," ""

getElementById "jazzy"

format-this node-element as-js-object! 

var here: dom/.data/.projects/1

format-this node-element as-js-object!