uralsjs-templator v0.1.1
js-uralsjs-templator
uralsjs html templator dsl
Description
Extendable html-templator dsl with full typescript support. May be used for building models of html-trees, easy-comparable, and easy-to-difference-calculatable. May be extended by custom tags.
Example
import * as htmlDsl from "uralsjs-templator"
import * as assert from "assert"
const given = htmlDsl.typecheck(['html', {},
['div', {
'class': 'w-100',
'style': 'height: 50px;'
},
['input', {
name: 'test-input',
val: 'test-val'
},
['textarea'] //input is single tag, children "textarea" will be ignored
],
['button', {
'class': 'btn btn-success'
}, "Submit"],
['input'],
]
], htmlDsl.html.config)
const result = htmlDsl.tag.render(given, htmlDsl.html.config)
const nominal = '<html>'
+ '\n <div class="w-100" style="height: 50px;">'
+ '\n <input name="test-input" val="test-val">'
+ '\n <button class="btn btn-success">'
+ '\n Submit</button>'
+ '\n <input></div></html>';
assert.strictEqual(result, nominal)Extending
For understanding package extension possibilities you should understand concept of config:
export type T<Tag extends string> = Record< //config type
Tag, //Known tags for templator: for example 'div' | 'form' | etc..
(
params: Record<string, string|number>,
content: string
) => string //Known functions for print html by this tags
>config uses as list of instructions for rendering html by dsl-phrase calls tag:
export type T<Tag extends string> = [ //tag type
Tag,
Record<string, string|number>?,
...T<Tag>[]
] | stringdefault renderer for html tags contains in inner ./html file
Use tags and configs you may compose typechecked phrases and render them into html
//Declaration of inner package's index file:
//Uses for rendering tags composition into html.
export const render = <Tag extends string>(
t: T<Tag>, //tags composition
conf: config.T<Tag>,
deep: number = 0
): string => {...}
//Uses for compiler's typechecking tags composition. Doesn't make sense in runtime.
export const typecheck = <Tag extends string>(
t: T<Tag>, //tags composition
conf: config.T<Tag>,
): T<Tag> => tYou may declare your own renderer for your own tags, applies renderer type, and spread it with default renderer or as only one renderer in your project. Default renderer builded by spreading single-tag and double-tag renderers:
//content of "./html/index" file:
import * as singleTag from "./single-tag"
import * as doubleTag from "./double-tag"
import * as c from "../config"
export const config: c.T<
(typeof singleTag.literals[number])|(typeof doubleTag.literals[number])
> = {
...singleTag.config,
...doubleTag.config
}
//For details or default renderers realization look "./dsl/single-tag.ts"
//and "./dsl/double-tag.ts" filesLicense
MIT
Contacts
Anatoly Starodubtsev tostar74@mail.ru