0
Fork 0
mirror of https://codeberg.org/forgejo/forgejo.git synced 2024-12-23 15:53:07 -05:00
forgejo/modules/util/truncate.go
wxiaoguang 19de52e0f4
Introduce GiteaLocaleNumber custom element to handle number localization on pages. (#23861)
Follow #21429 & #22861

Use `<gitea-locale-number>` instead of backend `PrettyNumber`. All old
`PrettyNumber` related functions are removed. A lot of code could be
simplified.

And some functions haven't been used for long time (dead code), so they
are also removed by the way (eg: `SplitStringAtRuneN`, `Dedent`)

This PR only tries to improve the `PrettyNumber` rendering problem, it
doesn't touch the "plural" problem.

Screenshot:


![image](https://user-images.githubusercontent.com/2114189/229290804-1f63db65-1e34-4a54-84ba-e00b44331b17.png)


![image](https://user-images.githubusercontent.com/2114189/229290911-c88dea00-b11d-48dd-accb-9f52edd73ce4.png)
2023-04-03 12:58:09 -04:00

37 lines
826 B
Go

// Copyright 2021 The Gitea Authors. All rights reserved.
// SPDX-License-Identifier: MIT
package util
import "unicode/utf8"
// in UTF8 "…" is 3 bytes so doesn't really gain us anything...
const (
utf8Ellipsis = "…"
asciiEllipsis = "..."
)
// SplitStringAtByteN splits a string at byte n accounting for rune boundaries. (Combining characters are not accounted for.)
func SplitStringAtByteN(input string, n int) (left, right string) {
if len(input) <= n {
return input, ""
}
if !utf8.ValidString(input) {
if n-3 < 0 {
return input, ""
}
return input[:n-3] + asciiEllipsis, asciiEllipsis + input[n-3:]
}
end := 0
for end <= n-3 {
_, size := utf8.DecodeRuneInString(input[end:])
if end+size > n-3 {
break
}
end += size
}
return input[:end] + utf8Ellipsis, utf8Ellipsis + input[end:]
}