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- // Copyright 2021 The Gitea Authors. All rights reserved.
- // SPDX-License-Identifier: MIT
-
- package util
-
- import (
- "strings"
- "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:]
- }
-
- // SplitTrimSpace splits the string at given separator and trims leading and trailing space
- func SplitTrimSpace(input, sep string) []string {
- // replace CRLF with LF
- input = strings.ReplaceAll(input, "\r\n", "\n")
-
- var stringList []string
- for _, s := range strings.Split(input, sep) {
- // trim leading and trailing space
- stringList = append(stringList, strings.TrimSpace(s))
- }
-
- return stringList
- }
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