File size: 2,146 Bytes
c9d0005 | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 | import { cloneDeep, isObject } from 'lodash-es';
const recursionArray: any = (list: any[], dataMap: any) => {
const result = list.map((item) => {
if (Array.isArray(item)) {
return recursionArray(item);
}
if (isObject(item)) {
return parseAllExpression(item, dataMap);
}
if (isExpression(item)) {
return parseExpression(item, dataMap);
}
return item;
});
return result;
};
export const isExpression = (str: string) => {
if (typeof str !== 'string') {
return false;
}
const pattern = /^{\s*{(.+)}\s*}$/;
const reg1 = /^{\s*{function\(.+}\s*}$/;
return str.trim().match(pattern) && !str.trim().match(reg1);
};
export const parseExpression = (
func: any,
{ sourceData, parentData, currentData }: { sourceData?: any; parentData?: any; currentData?: any },
) => {
if (typeof func === 'string') {
const funcBody = func.replace(/^{\s*{/g, '').replace(/}\s*}$/g, '');
const funcStr = `
return ${funcBody
.replace(/source:/g, JSON.stringify(sourceData) + '.')
.replace(/data:/g, JSON.stringify(currentData) + '.')
.replace(/parent:/g, JSON.stringify(parentData) + '.')
// 兼容两种写法
.replace(/\$s/g, JSON.stringify(sourceData))
.replace(/\$d/g, JSON.stringify(currentData))
.replace(/\$p/g, JSON.stringify(parentData))}
`;
try {
const result = Function(funcStr)();
return result;
} catch (error) {
// console.log(error);
return null; // 如果计算有错误，return null 最合适
}
}
return func;
};
export const parseAllExpression = (_schema: any, dataMap: any) => {
const schema: any = cloneDeep(_schema);
Object.keys(schema).forEach((key) => {
const item: any = schema[key];
const { mustacheParse } = item || {};
if (Array.isArray(item)) {
schema[key] = recursionArray(item, dataMap);
}
if (isObject(item) && (mustacheParse ?? true)) {
schema[key] = parseAllExpression(item, dataMap);
} else if (isExpression(item)) {
schema[key] = parseExpression(item, dataMap);
}
});
return schema;
};
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