chaîne CSV JavaScript avec des virgules dans les champs
// Return array of string values, or NULL if CSV string not well formed.
function CSVtoArray(text) {
var re_valid = /^\s*(?:'[^'\\]*(?:\\[\S\s][^'\\]*)*'|"[^"\\]*(?:\\[\S\s][^"\\]*)*"|[^,'"\s\\]*(?:\s+[^,'"\s\\]+)*)\s*(?:,\s*(?:'[^'\\]*(?:\\[\S\s][^'\\]*)*'|"[^"\\]*(?:\\[\S\s][^"\\]*)*"|[^,'"\s\\]*(?:\s+[^,'"\s\\]+)*)\s*)*$/;
var re_value = /(?!\s*$)\s*(?:'([^'\\]*(?:\\[\S\s][^'\\]*)*)'|"([^"\\]*(?:\\[\S\s][^"\\]*)*)"|([^,'"\s\\]*(?:\s+[^,'"\s\\]+)*))\s*(?:,|$)/g;
// Return NULL if input string is not well formed CSV string.
if (!re_valid.test(text)) return null;
var a = []; // Initialize array to receive values.
text.replace(re_value, // "Walk" the string using replace with callback.
function(m0, m1, m2, m3) {
// Remove backslash from \' in single quoted values.
if (m1 !== undefined) a.push(m1.replace(/\\'/g, "'"));
// Remove backslash from \" in double quoted values.
else if (m2 !== undefined) a.push(m2.replace(/\\"/g, '"'));
else if (m3 !== undefined) a.push(m3);
return ''; // Return empty string.
});
// Handle special case of empty last value.
if (/,\s*$/.test(text)) a.push('');
return a;
};
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