Description

The style gb-7714-2015-numeric formats a citation with a number enclosed in square brackets (e.g., [1]) and render them in superscript.
However, some fonts only provide dedicated superscript glyphs for numbers, not for brackets. This can cause misalignment, with the numbers appearing higher than the brackets in the superscript.

#set text(font: "Noto Serif CJK SC")
孔乙己@key\上大人

#set text(font: "Noto Serif CJK SC")
孔乙己@key\上大人

#let bib = ```bib
@misc{key,
  title = {Title},
}
```.text
#bibliography(bytes(bib), style: "gb-7714-2015-numeric")

Workaround

#show cite: set super(typographic: false)

Suggested change

This issue is caused by an imperfect font, but typst can still provide a better default.
For example, we can use the dedicated superscript glyphs only when all characters in [1] have them.

According to the following example, the mechanism is already implemented for #super, but #cite processes prefix ([), number (1), and suffix (]) separately, thereby ignoring that mechanism.

#set text(font: "Noto Serif CJK SC")

❌国@key
✅国#super("[1]")
❌国#"[1]".clusters().map(super).join()

#set super(typographic: false)

✅国@key
✅国#super("[1]")
✅国#"[1]".clusters().map(super).join()

Background and previous discussion

The unexpected behaviour was described in #4203 and #5852, but they were closed in favor of #4006, which was in turn closed as a duplicate of #633.
However, this issue (occured in single citation) is more basic than #633 (occured in multiple superscripts), and be can be fixed before #633. Therefore, I recreate this one.

This issue was also recorded in §7.1 Citing of clreq-gap for typst.

The suggested change was came up in the forum, starting from this post.

Reproduction URL

No response

Operating system

Windows, Web app

Typst version

• I am using the latest version of Typst