what's the unicode code point for \b as accent?
U+0331 COMBINING MACRON BELOW/NON-SPACING MACRON BELOW
+ opposite of \= (U+0304 COMBINING MACRON/NON-SPACING MACRON)
- Unicode doesn't have a letter with this accent
+U0332 COMBINING LOW LINE/NON-SPACING UNDERSCORE
+ practical use for underlining (e.g. in bookmarks)
- it isn't a typical accent
+U0320 COMBINING MINUS SIGN BELOW/NON-SPACING MINUS SIGN BELOW
- I don't see use cases, especially, there isn't a `plus sign below'.
My guess would be `macron below', \b seems to be inherited
from math mode.
Heiko <[log in to unmask]>