我正在尝试将外部csv文件解析为javascript数组,它采用如下数据:
AL185,YAHOO/PA_AL185,1855
ATUK,GOOG/LON_ATUK,@UK PLC
408,YAHOO/SZ_000408,*STJG
ATTY,GOOG/PINK_ATTY,1-800-Attorney Inc-
然后把它变成这样的数组:
var stocks = [
["STI,GOOG/NYSE_STI,SunTrust Banks"],
["AAPL,GOOG/NASDAQ_AAPL,Apple Inc"]
];
上面的代码应该正确解析它,但我不知道它为什么不起作用
代码:
$('#test').submit(function (event) {
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];
// When the very first character of the data is a delimiter
// (either field or row delimiter) the item *before* the delimiter
// is an unquoted empty string. This empty string we need to add
// before handling the delimiter (ub@abego.org)
if (arrMatches.index == 0 && strMatchedDelimiter) {
arrData[arrData.length - 1].push("");
}
// 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);
}
var csv =
'AL185,YAHOO/PA_AL185,1855'
'AL185,YAHOO/PA_AL185,1855'
var array = CSVToArray(csv, "\n");
alert(array[0]);
event.preventDefault();
})
答案 0 :(得分:0)
而不是传递控制字符(“\ n”)&将它插入你的正则表达式中,在它前面加一个\,传递它的REPRESENTATION(“\\ n”)并将它放在你的正则表达式中,而不是额外的前导。 (注意:要让SO显示2个斜杠,这就是你需要的,我必须在这个帖子的“源”中放3个。)