As per the Wikipedia article on the Alsatian language (https://en.wikipedia.org/wiki/Alsatian_dialect#Orthography) the orthography includes the latin letters A,B,C ... X,Y,Z and the following vowels with diacritics with the corresponding IPA below.
| Orthography | Ä | À | É | Ö | Ü | Ù |
|---|---|---|---|---|---|---|
| IPA | /ɛ/ | /ɑ/,/ɑː/ | /ɛ/ | /œ/ | /y/ | /u/ |
But as per the "Office pour la langue et le cultures d'alsace et de moselle" (http://www.olcalsace.org/) the official(?) body within France for language and culture for the Alsace region. The orthography for Alsatian (all/most dialects) follow the ORTHAL system (http://www.orthal.fr/index.html & https://fr.wikipedia.org/wiki/Orthal)
Latest specification (http://www.orthal.fr/ORTHAL_2016.pdf) & Explanatory document (http://www.olcalsace.org/sites/default/files/documents/synthese_ORTHAL.pdf).
Notably the differences are - the letters X & Y are not a part of the alphabet with the digraph KS & letter J replacing them in ORTHAL.
The vowels are indicated by the following different set of letters. With umlauted letters following standard German orthography/phonology for the most part. Vowels with the grave accent indicating changes from standard German orthography/phonology.
Presumably to allow for better readability/etymological link with standard German. Their publications E.g. - glossaries for children - http://www.olcalsace.org/fr/lexiques exemplifies the use of this orthography.
| Orthography | Ä | À | Ë | Ì | Ö | Ü | Ù |
|---|---|---|---|---|---|---|---|
| IPA | /ɛ/ | /ɑ ~ ɒ/ | /æ/ | /ɪ/ | /œ/ | /y/ | /u/ |
It seems that either the Wikipedia article is wrong or outdated. I can update Wikipedia, but before I update the article, I wanted to find out if there is an authoritative source for the orthography besides olcalsace.
