Yes Value in Logical Order Exception Unicode Property

Yes is an indication that a character participates in the visual reordering of certain Indic scripts, such as Devanagari, where the logical sequence of characters differs from their displayed order. This value marks characters that are exceptions to the standard left to right rule, typically involving vowels that appear before or after consonants in a syllable but are typed in a different position. These characters, like the vowel sign for the short "i" in Devanagari, are stored in logical order but need to be rendered to the left of the preceding consonant. The flag ensures that shaping engines correctly reposition these marks during text display, preserving the intended pronunciation and meaning while following script specific layout rules.