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77dbc35138
- Go has a suite of small linters that helps with modernizing Go code by using newer functions and catching small mistakes, https://pkg.go.dev/golang.org/x/tools/go/analysis/passes/modernize. - Enable this linter in golangci-lint. - There's also [`go fix`](https://go.dev/blog/gofix), which is not yet released as a linter in golangci-lint: https://github.com/golangci/golangci-lint/pull/6385 Reviewed-on: https://codeberg.org/forgejo/forgejo/pulls/11936 Reviewed-by: Mathieu Fenniak <mfenniak@noreply.codeberg.org> Co-authored-by: Gusted <postmaster@gusted.xyz> Co-committed-by: Gusted <postmaster@gusted.xyz>
65 lines
1.6 KiB
Go
65 lines
1.6 KiB
Go
// Copyright 2021 The Gitea Authors. All rights reserved.
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// SPDX-License-Identifier: MIT
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package util
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import (
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"strings"
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"unicode/utf8"
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)
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// in UTF8 "…" is 3 bytes so doesn't really gain us anything...
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const (
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utf8Ellipsis = "…"
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asciiEllipsis = "..."
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)
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// SplitStringAtByteN splits a string at byte n accounting for rune boundaries. (Combining characters are not accounted for.)
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func SplitStringAtByteN(input string, n int) (left, right string) {
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if len(input) <= n {
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return input, ""
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}
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if !utf8.ValidString(input) {
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if n-3 < 0 {
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return input, ""
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}
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return input[:n-3] + asciiEllipsis, asciiEllipsis + input[n-3:]
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}
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end := 0
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for end <= n-3 {
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_, size := utf8.DecodeRuneInString(input[end:])
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if end+size > n-3 {
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break
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}
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end += size
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}
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return input[:end] + utf8Ellipsis, utf8Ellipsis + input[end:]
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}
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// SplitTrimSpace splits the string at given separator and trims leading and trailing space
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func SplitTrimSpace(input, sep string) []string {
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// Trim initial leading & trailing space
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input = strings.TrimSpace(input)
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// replace CRLF with LF
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input = strings.ReplaceAll(input, "\r\n", "\n")
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var stringList []string
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for s := range strings.SplitSeq(input, sep) {
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// trim leading and trailing space
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stringList = append(stringList, strings.TrimSpace(s))
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}
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return stringList
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}
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// TruncateRunes returns a truncated string with given rune limit,
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// it returns input string if its rune length doesn't exceed the limit.
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func TruncateRunes(str string, limit int) string {
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if utf8.RuneCountInString(str) < limit {
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return str
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}
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return string([]rune(str)[:limit])
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}
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