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When matching strings containing accented characters (diacritics), JavaScript presents challenges due to its Unicode handling. Here are approaches to address this:
This method is cumbersome and inflexible, as it requires manually listing all supported accented characters:
var accentedCharacters = "àèìòùÀÈÌÒÙáéíóúýÁÉÍÓÚÝâêîôûÂÊÎÔÛãñõÃÑÕäëïöüÿÄËÏÖÜŸçÇßØøÅåÆæœ"; var regex = "^[a-zA-Z" + accentedCharacters + "]+,\s[a-zA-Z" + accentedCharacters + "]+$";
This approach matches almost anything, as the dot (.) class allows for any character except newlines:
var regex = /^.+,\s.+$/;
This method utilizes a Unicode character range to match accented Latin characters:
/^[a-zA-Z\u00C0-\u017F]+,\s[a-zA-Z\u00C0-\u017F]+$/
The third approach using the Unicode range is recommended, as it matches all Latin characters with accents relevant to the user case and avoids unnecessary characters or excessive matching.
For matching all Unicode accents, consider using this simplified expression:
[A-zÀ-ú] // accepts lowercase and uppercase characters [A-zÀ-ÿ] // as above, including letters with an umlaut (includes [ ] ^ \ × ÷) [A-Za-zÀ-ÿ] // as above but not including [ ] ^ \ [A-Za-zÀ-ÖØ-öø-ÿ] // as above, but not including [ ] ^ \ × ÷
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