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carbon/lib/util.js

68 lines
1.5 KiB
JavaScript

import morph from 'morphmorph'
const KEY = 'CARBON_STATE'
const assign = morph.assign(KEY)
const parse = v => {
try {
return JSON.parse(v)
} catch (e) {
// pass
}
}
// https://gist.github.com/alexgibson/1704515
// TODO use https://github.com/sindresorhus/escape-goat/
export const escapeHtml = s => {
if (typeof s === 'string') {
return s
.replace(/</g, '&lt;')
.replace(/>/g, '&gt;')
.replace(/\//g, '&#x2F;')
.replace(/&/g, '&amp;')
}
}
export const unescapeHtml = s => {
if (typeof s === 'string') {
return s
.replace(/&lt;/g, '<')
.replace(/&gt;/g, '>')
.replace(/&#x2F;/g, '/')
.replace(/&amp;/g, '&');
}
}
export const parseRGBA = obj => `rgba(${obj.r},${obj.g},${obj.b},${obj.a})`
export const getState = morph.compose(
parse,
escapeHtml,
morph.get(KEY)
)
export const saveState = (window, v) => assign(window, JSON.stringify(v))
export const capitalizeFirstLetter = s => s.charAt(0).toUpperCase() + s.slice(1)
export const range = n => [...Array(n).keys()]
export const fileToDataURL = blob =>
new Promise(res => {
const reader = new FileReader()
reader.onload = e => res(e.target.result)
reader.readAsDataURL(blob)
})
export const formatCode = async code => {
const prettier = await import('prettier/standalone')
const babylonParser = await import('prettier/parser-babylon')
return prettier.format(code, {
parser: 'babylon',
plugins: [babylonParser],
semi: false,
singleQuote: true
})
}