用于导入CSV文件的Javascript和正则表达式

以下是从CSV导入的一行原始文本：

10,"2013-04-17 16:29:36",out,"BTC sold: [tid:0450750450454505] 0.85985758 BTC at 69.88355 € (0.55% fee)",0.85985758,0

我试图编辑的代码相当简单，来自[本教程页面][1]（*主代码副本位于本页面底部）：

主要的regexp代码部分是：

var objPattern = new RegExp(
  (
    // Delimiters.
    "(\\" + strDelimiter + "|\\r?\\n|\\r|^)" +

    // Quoted fields.
    "(?:\"([^\"]*(?:\"\"[^\"]*)*)\"|" +

    // Standard fields.
    "([^\"\\" + strDelimiter + "\\r\\n]*))"
  ),
  "gi"
);

我想要的是，在我开始复制的原始行文本中，我想要删除或忽略括号、括号（）之间的内容，并将单词“at”作为新列的分隔符。当我导入CSV时，新列的值将是单词“at”后面的值

等效的regexp代码应为： [(.?)]|((.?)) 和 （\bat\b）

我尝试了各种选项，比如在delimiters部分中向regexp添加（\bat\b），但是它不起作用

非常感谢你的帮助

全部代码：

function onOpen() {
  var ss = SpreadsheetApp.getActiveSpreadsheet();
  var csvMenuEntries = [{name: "Load from CSV file", functionName: "importFromCSV"}];
  ss.addMenu("CSV", csvMenuEntries);
}

function search() {
  // Prompt the user for a search term
  var searchTerm = Browser.inputBox("Enter the string to search for:");

  // Get the active spreadsheet and the active sheet
  var ss = SpreadsheetApp.getActiveSpreadsheet();
  var sheet = ss.getActiveSheet();

  // Set up the spreadsheet to display the results
  var headers = [["File Name", "File Type", "URL"]];
  sheet.clear();
  sheet.getRange("A1:C1").setValues(headers);

  // Search the files in the user's Docs List for the search term
  var files = DocsList.find(searchTerm);

  // Loop through the results and display the file name, file type, and URL
  for (var i = 0; i < files.length; i++) {
    sheet.getRange(i+2, 1, 1, 1).setValue(files[i].getName());
    sheet.getRange(i+2, 2, 1, 1).setValue(files[i].getType());
    if (files[i].getType() == "document") {
      urlBase = "https://docs.google.com/Doc?docid=";
    }
    else if (files[i].getType() == "spreadsheet") {
      urlBase = "https://spreadsheets.google.com/ccc?key=";
    }
    else if (files[i].getType() == "presentation") {
      urlBase = "https://docs.google.com/present/view?id=";
    }
    else {
      urlBase = "https://docs.google.com/fileview?id=";
    }
    sheet.getRange(i+2, 3, 1, 1).setValue(urlBase + files[i].getId());
  }
}

function importFromCSV() {
  var fileName = "history_BTC.csv";


 var files = DocsList.getFiles();
  var csvFile = "";



  for (var i = 0; i < files.length; i++) {
    if (files[i].getName() == fileName) {
      csvFile = files[i].getContentAsString();

      break;
    }
  }

  var csvData = CSVToArray(csvFile, ",");
  var ss = SpreadsheetApp.getActiveSpreadsheet();
  var sheet = ss.getActiveSheet();
  for (var i = 0; i < csvData.length; i++) {
    sheet.getRange(i+1, 1, 1, csvData[i].length).setValues(new Array(csvData[i]));
  }
}

// This will parse a delimited string into an array of
// arrays. The default delimiter is the comma, but this
// can be overriden in the second argument.

function CSVToArray( strData, strDelimiter ){
  // Check to see if the delimiter is defined. If not,
  // then default to comma.
  strDelimiter = (strDelimiter || "," );


  // Create a regular expression to parse the CSV values.
  var objPattern = new RegExp(
    (
      // Delimiters.
      "(\\" + strDelimiter + "|\\r?\\n|\bat\b|\\r|^)" +

      // Quoted fields.
      "(?:\"([^\"]*(?:\"\"[^\"]*)*)\"|" +

      // Standard fields.
      "([^\"\\" + strDelimiter + "\\r\\n]*))"

    ),
    "gi"
  );


  // Create an array to hold our data. Give the array
  // a default empty first row.
  var arrData = [[]];

  // Create an array to hold our individual pattern
  // matching groups.
  var arrMatches = null;


  // Keep looping over the regular expression matches
  // until we can no longer find a match.
  while (arrMatches = objPattern.exec( strData )){

    // Get the delimiter that was found.
    var strMatchedDelimiter = arrMatches[ 1 ];

    // Check to see if the given delimiter has a length
    // (is not the start of string) and if it matches
    // field delimiter. If id does not, then we know
    // that this delimiter is a row delimiter.
    if (
      strMatchedDelimiter.length &&
      (strMatchedDelimiter != strDelimiter)
    ){

      // Since we have reached a new row of data,
      // add an empty row to our data array.
      arrData.push( [] );

    }


    // Now that we have our delimiter out of the way,
    // let's check to see which kind of value we
    // captured (quoted or unquoted).
    if (arrMatches[ 2 ]){

      // We found a quoted value. When we capture
      // this value, unescape any double quotes.
      var strMatchedValue = arrMatches[ 2 ].replace(
        new RegExp( "\"\"", "g" ),
        "\""
      );

    } else {

      // We found a non-quoted value.
      var strMatchedValue = arrMatches[ 3 ];

    }


    // Now that we have our value string, let's add
    // it to the data array.
    arrData[ arrData.length - 1 ].push( strMatchedValue );
  }

  // Return the parsed data.
  return( arrData );
}

函数onOpen（）{ var ss=SpreadsheetApp.getActiveSpreadsheet（）； var csvMenuEntries=[{name:“从CSV文件加载”，functionName:“importFromCSV”}]； ss.addMenu（“CSV”，csvMenuEntries）； } 函数搜索（）{ //提示用户输入搜索词 var searchTerm=Browser.inputBox（“输入要搜索的字符串：”）； //获取活动电子表格和活动工作表 var ss=SpreadsheetApp.getActiveSpreadsheet（）； var sheet=ss.getActiveSheet（）； //设置电子表格以显示结果 var headers=[[“文件名”、“文件类型”、“URL”]]； sheet.clear（）； 表.getRange（“A1:C1”）.SetValue（标题）； //在用户的文档列表中搜索搜索词 var files=DocsList.find（searchTerm）； //循环浏览结果并显示文件名、文件类型和URL 对于（var i=0；i首先，将“at”替换为“，”。这不需要正则表达式

那么这就是一个简单的替换：

a=myString.replace(" at ", ",");
b=a.replace(" at ", ",");
c=b.replace(/(\[[^\]]+\]|\([^)]+\))/gi, "");

---

您是否考虑过简单地使用

\[（.*？\]\（.*？）

将输入字符串中的替换为“”，然后用适当的分隔符替换

/\bat\b/g

，，然后再处理该函数我开始理解逻辑，谢谢：）你能告诉我在哪里粘贴这个吗，这样我就不用在上面花太多时间了？我的字符串也要更改了吗？我试了好几个小时都没有成功。不管怎样，谢谢你的帮助。我仍在努力按照dda的建议完成这项工作，但是我不知道该把代码放在哪里。另外，我认为我必须用一些东西来替换myString，可能是csvData或csvFile，但我会遇到类似“TypeError:找不到object中的函数replace”这样的错误，我很确定提供的代码应该可以完美地工作，但我对javascript太差了。