搬砖 - js 读取带双引号的csv文件

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|\\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);
}

标签：strDelimiter,双引号,arrMatches,js,delimiter,var,our,array,csv
来源： https://www.cnblogs.com/huanglisong/p/15628800.html