0 (used when writing some languages) a mark made under a letter, especially c, then written as ç, to show that the letter has a special sound -- 下加变音符，尾形符（尤指字母c写作ç）
Romanian writings, including books created to teach children to write, treat the comma and cedilla as a variation in font.
This feature forces s with cedilla to be rendered using the same glyph as s with comma below.
However, the cedilla is replaced with a comma.
For that purpose, he introduced the apostrophe, the accent, and the cedilla.
The mapping is done by converting accented characters and the cedilla for their non-accented versions and c, respectively, and discards hyphens.
The letters ",", "and" are written with a cedilla or a small comma placed below (or above the lowercase "g").
Alternate glyphs include rounded dots, old style figures, and alternate cedilla.
