Split JavaScript string with conditions

Question

I can separate a string by comma (,) in JavaScript with split. My string is as follows:

"Hojas, DNI, Factura {Con N° de O/C impresa, otra cosa}, Pasaporte, Permiso"

The result should be:

["Hojas", "DNI", "Factura {Con N° de O/C impresa, otra cosa}", "Pasaporte", "Permiso"]

I tried to do the following:

"Hojas, DNI, Factura {Con N° de O/C impresa, otra cosa}, Pasaporte, Permiso".split(/,\s+(.+\s{.+})?/g)

But I get the following result: ["Hojas", "DNI, Factura {Con N° de O/C impresa, otra cosa}", "", undefined, "Pasaporte", undefined, "Permiso"]

Wiktor Stribiżew · Accepted Answer · 2015-10-14 14:05:37Z

3

Assuming that there are no unpaired or nested {}, you can use a (?![^{}]*}) look-ahead to make sure there is no closing } after the comma:

\s*,\s*(?![^{}]*})

See the regex demo

And a snippet:

var re = /\s*,\s*(?![^{}]*})/g; 
var str = 'Hojas, DNI, Factura {Con N° de O/C impresa, otra cosa}, Pasaporte, Permiso';
var res = str.split(re);
for (var i=0; i<res.length; i++) {
  document.write(res[i]+ "<br/>");
}

The \s* are used to trim the resulting array entries.

answered Oct 14, 2015 at 14:05

Wiktor Stribiżew

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Comments

amitguptageek · Accepted Answer · 2015-10-14 14:22:14Z

0

Please find below code snippet:

var arr = "Hojas, DNI, Factura {Con N° de O/C impresa, otra cosa}, Pasaporte, Permiso".split(/\s*,\s*(?![^{}]*})/g);
console.log(arr);

edited Oct 14, 2015 at 14:22

answered Oct 14, 2015 at 14:12

amitguptageek

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2 Comments

Grundy Over a year ago

Factura {Con N° de O/C impresa, otra cosa} should be one element, but your code get two

amitguptageek Over a year ago

@Grundy: Thanks. Corrected the same.

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