详解使用Node.js 将txt文件转为Excel文件

 Policy Name:  policyName1
 ……省略中间内容……
 Policy Type:  Standard (0)
 ……省略中间内容……
 Client/HW/OS/Pri/CIT: Client1
 Client/HW/OS/Pri/CIT: Client2
 Client/HW/OS/Pri/CIT: Client3
 Client/HW/OS/Pri/CIT: Client4
 ……省略多个Client
 Include:   /dir1
 Include:   /dir2
 Include:   /dir3
 ……省略多个Include
 Schedule:    Schedule1
  Type：
  ……
 Schedule:    Schedule2
  Type：
  ……
 ……省略多个Schedule

 Policy Name:  policyName2
 ……省略中间内容……
 ……

fs.readFile(filePath, 'UTF-8', function (err, data) {
 if (err) throw err;
 // 对文件读取的数据进行处理，首先用 policyName 进行切割
 var policyLists = data.split(config.splitRules.policyName);
 if (policyLists[0] === '\r\n') {
 policyLists.shift();
 };

 policyLists.forEach(function (policy) {
 var policyData = policyFormatter(config.splitRules.policyName + policy);
 excelData.push(policyData);
 });

/**
 * 对每一个policy进行整理 使其符合表格插入的形式
 * @param {*} policy 
 * {
 * policyName: String
 * client: []]
 * policyType: String
 * include: []
 * schedule[]
 * scheduleResidence: String
 * }
 * 
 */
function policyFormatter(policy) {

 var policyNameMatcher = new RegExp(config.splitRules.policyName + "([\\s\\w\\d\\-]*)\\r\\n"),
 clientMatcher = new RegExp(config.splitRules.client + "([\\s\\w\\d\\?\\-\\.]*)\\r\\n", "g"),
 policyTypeMatcher = new RegExp(config.splitRules.policyType + "([\\s\\w\\d\\(\\)\\-]*)\\r\\n"),
 includeMatcher = new RegExp(config.splitRules.include + "([\\s/\\w\\.\\\\:_\\?=\\\"\\*]*)\\r\\n", "g");

 var scheduleLists = policy.split(config.splitRules.schedule).slice(1),
 scheduleFormatLists = [],
 scheduleResidenceMatcher = new RegExp(config.splitRules.scheduleResidence + "([\\s\\w\\d\\-\\(\\)]*)\\r\\n");

 scheduleLists.forEach(function (schedule) {
 var scheduleFormat = config.splitRules.schedule + schedule;
 scheduleFormatLists.push(scheduleFormat);
 });

 // console.log(scheduleFormatLists);

 var results = {
 policyName: policy.match(policyNameMatcher)[1].trim(),
 client: policy.match(clientMatcher) ? policy.match(clientMatcher).join('').trim() : '',
 policyType: policy.match(policyTypeMatcher)[1].trim(),
 include: policy.match(includeMatcher).join('').trim(),
 schedule: scheduleFormatLists.join('').trim(),
 scheduleResidence: scheduleLists[0].match(scheduleResidenceMatcher)[1].trim()
 };

 // console.dir(results);
 return results;
}