69 lines
1.4 KiB
JavaScript
69 lines
1.4 KiB
JavaScript
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/**
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* @typedef {import('./util/schema.js').Schema} Schema
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*/
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import {normalize} from './normalize.js'
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import {DefinedInfo} from './util/defined-info.js'
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import {Info} from './util/info.js'
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const valid = /^data[-\w.:]+$/i
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const dash = /-[a-z]/g
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const cap = /[A-Z]/g
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/**
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* @param {Schema} schema
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* @param {string} value
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* @returns {Info}
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*/
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export function find(schema, value) {
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const normal = normalize(value)
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let prop = value
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let Type = Info
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if (normal in schema.normal) {
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return schema.property[schema.normal[normal]]
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}
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if (normal.length > 4 && normal.slice(0, 4) === 'data' && valid.test(value)) {
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// Attribute or property.
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if (value.charAt(4) === '-') {
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// Turn it into a property.
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const rest = value.slice(5).replace(dash, camelcase)
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prop = 'data' + rest.charAt(0).toUpperCase() + rest.slice(1)
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} else {
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// Turn it into an attribute.
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const rest = value.slice(4)
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if (!dash.test(rest)) {
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let dashes = rest.replace(cap, kebab)
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if (dashes.charAt(0) !== '-') {
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dashes = '-' + dashes
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}
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value = 'data' + dashes
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}
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}
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Type = DefinedInfo
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}
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return new Type(prop, value)
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}
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/**
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* @param {string} $0
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* @returns {string}
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*/
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function kebab($0) {
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return '-' + $0.toLowerCase()
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}
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/**
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* @param {string} $0
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* @returns {string}
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*/
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function camelcase($0) {
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return $0.charAt(1).toUpperCase()
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}
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