WG2 members, UTC members Document N2634 provides a complete proposal for encoding the Tai Lue (Xishuangbanna Dai) script. This document provides comments on that proposal. Character inventory and encoding model The character repertoire and encoding model proposed in N2634 is appropriate and complete for this script. Ordering of characters The proposal does not discuss collation issues explicitly. While the encoding order of characters should not be strictly tied to collation order (due to collation, in general, involving greater complexity than can be reflected in code point order of characters alone, as well as variation between cultures), the code point order will influence implementers, and so is an important consideration. There is some variation in Tai Lue documents and descriptions of Tai Lue with respect to ordering, though one ordering of consonant and vowels seems to prevail. The ordering of consonants in this proposal is corroborated in various sources. The ordering of vowel symbols can be seen in the following sample: 1 1 Note that the columns in this chart come in sets of three: the left column has a phonetic transcription, the middle column has the Tai Lue vowel sign, and the right-hand column contains the older writing convention for the Tai Lue language, using a variation of the Lanna script
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