https://www.oitabank.co.jp/js/csv.js

1/* Usage:
2 *  jQuery.csv()(csvtext)       returns an array of arrays representing the CSV text.
3 *  jQuery.csv("\t")(tsvtext)       uses Tab as a delimiter (comma is the default)
4 *  jQuery.csv("\t", "'")(tsvtext)  uses a single quote as the quote character instead of double quotes
5 *  jQuery.csv("\t", "'\"")(tsvtext)    uses single & double quotes as the quote character
6 *  jQuery.csv(",", "", "\n")(tsvtext)  カンマ区切りで改行コード「\n」
7 */
8jQuery.extend({
9    csv: function(delim, quote, lined) {
10        delim = typeof delim == "string" ? new RegExp( "[" + (delim || ","   ) + "]" ) : typeof delim == "undefined" ? ","    : delim;
11        quote = typeof quote == "string" ? new RegExp("^[" + (quote || '"'   ) + "]" ) : typeof quote == "undefined" ? '"'    : quote;
12        lined = typeof lined == "string" ? new RegExp( "[" + (lined || "\r\n") + "]+") : typeof lined == "undefined" ? "\r\n" : lined;
13
14        function splitline (v) {
15            // Split the line using the delimitor
16            var arr  = v.split(delim), out = [], q;
17            for (var i=0, l=arr.length; i<l; i++) {
18                if (q = arr[i].match(quote)) {
19                    for (j=i; j<l; j++) {
20                        if (arr[j].charAt(arr[j].length-1) == q[0]) {
21                            break;
22                        }
23                    }
24                    var s = arr.slice(i,j+1).join(delim);
25                    out.push(s.substr(1,s.length-2));
26                    i = j;
27                }
28                else {
29                    out.push(arr[i]);
30                }
31            }
32
33            return out;
34        }
35
36        return function(text) {
37            var lines = text.split(lined);
38            for (var i=0, l=lines.length; i<l; i++) {
39                lines[i] = splitline(lines[i]);
40            }
41            
42            // 最後の行を削除
43            var last = lines.length - 1;
44            if (lines[last].length == 1 && lines[last][0] == "") {
45                lines.splice(last, 1);
46            }
47            
48            return lines;
49        };
50    }
51});