Marcel Schneider <charupdate at orange dot fr> wrote: > Representing fractions as U+2044 is known as a compatibility mapping, > equally like representing a superscript as , while (I go on checking > my knowledge...) representing a precomposed diacriticized letter as is > known as a decomposition mapping. The difference between the two ways > of getting the same thing is in plain text. With decomposition we stay > in plain text, while compatibility mappings need formatting, thus > leaving the field of plain text.
It's not a matter of one being plain text and the other not. Read Section 3.7, "Decomposition" [1] to learn about canonical and compatibility decomposition. In general, the Glossary [2] and FAQ [3] are useful resources. [1] http://www.unicode.org/versions/Unicode7.0.0/ch03.pdf#G729 [2] http://www.unicode.org/glossary/ [3] http://www.unicode.org/faq/ -- Doug Ewell | http://ewellic.org | Thornton, CO 🇺🇸
