[英]how to convert CSV (with array and dictionary) values to JSON
can someone please advice how I can convert a CSV file with arrays and dictionaries to JSON. 有人可以建议我如何将包含数组和字典的CSV文件转换为JSON。 I've looked at some similar questions without much success, since they don't address conversion of arrays and dictionaries. 我看过一些类似的问题,但是没有成功,因为它们没有解决数组和字典的转换问题。
here is a sample CSV text which has arrays and dictionaries, also find excel file (shown as image) from which I created this CSV text. 这是示例CSV文本,其中包含数组和字典,还可以找到我从中创建此CSV文本的Excel文件(显示为图片)。
For explanation purposes, I have limited number of fields and the complexity. 为了说明的目的,我限制了字段的数量和复杂性。 I wonder if there is a snippet of code or tool converter that can do the job of conversion. 我想知道是否有一段代码或工具转换器可以完成转换工作。
FYI: I am collecting the info in excel file, converting into CSV file to load it on to the database. 仅供参考:我正在收集Excel文件中的信息,将其转换为CSV文件以将其加载到数据库中。
firstName,lastName,address
John,Baker,Newyork
Paul,Fisher,Paris
Gabriel,Solksi,[location:London, postcode:EC17DC]
Laurene,smith,{location:Beijing, pincode:512389, alternateNames:[risingCity, futureCity]}
have a look here http://jsfiddle.net/sturtevant/AZFvQ/ . 在这里看看http://jsfiddle.net/sturtevant/AZFvQ/ 。 This link has the code you require to convert CSV
text to JSON
. 该链接包含将CSV
文本转换为JSON
所需的代码。
You can also refer to products available in market like PapaParse 您还可以参考市场上可用的产品,例如PapaParse
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);
}
function CSV2JSON(csv) {
var array = CSVToArray(csv);
var objArray = [];
for (var i = 1; i < array.length; i++) {
objArray[i - 1] = {};
for (var k = 0; k < array[0].length && k < array[i].length; k++) {
var key = array[0][k];
objArray[i - 1][key] = array[i][k]
}
}
var json = JSON.stringify(objArray);
var str = json.replace(/},/g, "},\r\n");
return str;
}
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