La méthode ci-dessous permet d’autoriser une syntaxe moins rigoureuse en prenant soin de modifier les petites erreurs qui ont pu être commises.
/**
* Clean a string
* * Remove comments ("//" and "/*")
* * Add first and last braces ("{" and "}") if missing
* * Remove unauthorized commas
*
* @param data Almost JSON string that will be cleaned to become a valid JSON string
* @return Valid JSON string (or at least, a more valid one)
*/
QString cleanJsonString(QString data)
{
// Remove inline comms
QRegExp pattern = QRegExp("(^|\\[|\\{|,|\\n|\\s)//.*($|\\n)");
pattern.setMinimal(true); //ungreedy
data.replace(pattern, "\\1\n");
data.replace(pattern, "\\1\n"); //2 times, I am not sure why...
// Remove bloc comms
pattern = QRegExp("/\\*.*\\*/");
pattern.setMinimal(true); //ungreedy
data.replace(pattern, "");
// Add first and last brace
if (!data.startsWith("{")) {
data = "{\n"+data;
}
if (!data.endsWith("}")) {
data += "\n}";
}
// Remove commas before } or ]
pattern = QRegExp(",(\\s*[}\\]])");
pattern.setMinimal(true); //non-greedy
data.replace(pattern, "\\1");
return data;
}
J’ai commis une méthode similaire en PHP : Manipuler du JSON en PHP.
