MD> символов несколько, а внешне глиф — один

Кодепоинтов несколько. Я бы не сказал, что символов.

https://stackoverflow.com/questions/27331819/whats-the-difference-between-a-character-a-code-point-a-glyph-and-a-grapheme

Кроме того, не надо мне тыкать глифами. Глиф — это только часть графемы:

A glyph is an image, usually stored in a font (which is a collection of glyphs), used to represent graphemes or parts thereof.

A grapheme is a sequence of one or more code points that are displayed as a single, graphical unit that a reader recognizes as a single element of the writing system.

MD> символов несколько, а внешне глиф — один

Кодепоинтов несколько. Я бы не сказал, что символов.

https://stackoverflow.com/questions/27331819/whats-the-difference-between-a-character-a-code-point-a-glyph-and-a-grapheme

Кроме того, не надо мне тыкать глифами. Глиф — это только часть графемы:

A glyph is an image, usually stored in a font (which is a collection of glyphs), used to represent graphemes or parts thereof.

A grapheme is a sequence of one or more code points that are displayed as a single, graphical unit that a reader recognizes as a single element of the writing system.

character is an individual unit of text composed of one or more graphemes