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/**
* Copyright (c) 2023 - present TinyEngine Authors.
* Copyright (c) 2023 - present Huawei Cloud Computing Technologies Co., Ltd.
*
* Use of this source code is governed by an MIT-style license.
*
* THE OPEN SOURCE SOFTWARE IN THIS PRODUCT IS DISTRIBUTED IN THE HOPE THAT IT WILL BE USEFUL,
* BUT WITHOUT ANY WARRANTY, WITHOUT EVEN THE IMPLIED WARRANTY OF MERCHANTABILITY OR FITNESS FOR
* A PARTICULAR PURPOSE. SEE THE APPLICABLE LICENSES FOR MORE DETAILS.
*
*/
import { isObject, isArray } from '@opentiny/vue-renderless/grid/static'
export const fun_ctor = Function
/**
* 解析表达式字符串
* @param {string} rawCode 表达式字符串
* @param {object} context 调用的上下文
* @returns any
*/
export function parseExpression(rawCode, context = {}) {
try {
return fun_ctor(`return (${rawCode})`).call(context)
} catch (error) {
// eslint-disable-next-line no-console
console.error(`parseExpression error: ${error}`)
return undefined
}
}
/**
* 解析函数字符串成函数
* @param {string} rawCode 字符串函数
* @param {object} context 需要绑定的函数上下文
* @returns Function
*/
export function parseFunction(rawCode, context = {}) {
try {
return fun_ctor(`return (${rawCode})`).call(context).bind(context)
} catch (error) {
// eslint-disable-next-line no-console
console.error(`parseFunction error: ${JSON.Stringify(error)}`)
return null
}
}
/**
* 将字符串包含的特殊正则字符逃逸出来 （加上 \\）
* 适用于 new Regexp(`${str}`)的情形，防止变量 str 具有一些特殊的正则字符串导致挂掉或者不符合期望
* @param {string} value 字符串
* @returns escape 之后的字符串
*/
export const escapeRegExp = (value) => {
const reg = /[\\^$.*+?()[\]{}|]/g
const str = String(value)
return str.replace(reg, '\\$&')
}
// prefer old unicode hacks for backward compatibility
// https://base64.guru/developers/javascript/examples/unicode-strings
export const utoa = (string) => btoa(unescape(encodeURIComponent(string)))
export const atou = (base64) => decodeURIComponent(escape(atob(base64)))
/**
* Create a cached version of a pure function.
*/
function cached(fn) {
const cache = Object.create(null)
return function cachedFn(str) {
if (!cache[str]) {
cache[str] = fn(str)
}
return cache[str]
}
}
/**
* Camelize a hyphen-delimited string.
*/
const camelizeRE = /-(\w)/g
export const camelize = cached((str) => {
return str.replace(camelizeRE, (_, c) => {
return c ? c.toUpperCase() : ''
})
})
/**
* Capitalize a string.
*/
export const capitalize = cached((str) => {
return str.charAt(0).toUpperCase() + str.slice(1)
})
export const hyphenateRE = /\B([A-Z])/g
export const hyphenate = cached((str) => {
return str.replace(hyphenateRE, '-$1').toLowerCase()
})
/**
* get random id
*/
export const guid = () => {
return 'xxxxxxxx'.replace(/[x]/g, (c) => {
const random = parseFloat('0.' + crypto.getRandomValues(new Uint32Array(1))[0])
const r = (random * 16) | 0
const v = c === 'x' ? r : (r & 0x3) | 0x8
return v.toString(16)
})
}
export const getEnumData = (item) => {
if (item.enum && item.enumNames) {
return item.enum.map((value, index) => ({ value, text: item.enumNames[index] }))
}
return undefined
}
export const mapTree = (obj = {}, handler, childName = 'children') => {
const children = obj[childName]
const node = handler(obj)
if (Array.isArray(children)) {
node[childName] = children.map((child) => mapTree(child, handler))
}
return node
}
export const mapObj = (source, handler, rootKey) => {
const caller = (obj, key) => {
const { item, deep } = handler(obj, key)
return deep ? mapObj(item, handler, key) : item
}
if (isArray(source)) {
return source.map((obj) => caller(obj, rootKey))
}
if (source && isObject(source)) {
return Object.keys(source).reduce((output, key) => {
output[key] = caller(source[key], rootKey || key)
return output
}, {})
}
return source
}
export const getDefaultProps = (properties = []) => {
const props = {}
properties.forEach(({ content = [] }) => {
content.forEach(({ defaultValue, schema, property }) => {
const value = Array.isArray(schema) ? getDefaultProps(schema) : defaultValue
if (value) {
props[property] = value
}
})
})
return props
}
export function generateRandomLetters(length = 1) {
let result = ''
const chars = 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz'
for (let i = 0; i < length; i++) {
const random = parseFloat('0.' + crypto.getRandomValues(new Uint32Array(1))[0])
result += chars.charAt(Math.floor(random * chars.length))
}
return result
}