mirror of
https://github.com/siyuan-note/siyuan.git
synced 2025-05-04 01:59:05 +08:00
83 lines
2.0 KiB
Go
83 lines
2.0 KiB
Go
// SiYuan - Refactor your thinking
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// Copyright (c) 2020-present, b3log.org
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//
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// This program is free software: you can redistribute it and/or modify
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// it under the terms of the GNU Affero General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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//
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// This program is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU Affero General Public License for more details.
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//
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// You should have received a copy of the GNU Affero General Public License
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// along with this program. If not, see <https://www.gnu.org/licenses/>.
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package util
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import (
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"bytes"
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"strings"
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"unicode"
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"github.com/88250/lute/html"
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)
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// InsertElement inserts a new element value at the specified index position.
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// 0 <= index <= len(a)
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func InsertElement[T any](ret []T, index int, value T) []T {
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if len(ret) == index { // nil or empty slice or after last element
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return append(ret, value)
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}
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ret = append(ret[:index+1], ret[index:]...) // index < len(a)
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ret[index] = value
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return ret
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}
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func EscapeHTML(s string) string {
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if strings.Contains(s, "&") {
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return s
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}
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if strings.ContainsAny(s, "<>\"'") {
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return html.EscapeString(s)
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}
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return s
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}
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func Reverse(s string) string {
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runes := []rune(s)
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for i, j := 0, len(runes)-1; i < j; i, j = i+1, j-1 {
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runes[i], runes[j] = runes[j], runes[i]
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}
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return string(runes)
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}
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func RemoveRedundantSpace(str string) string {
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buf := bytes.Buffer{}
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lastIsChinese := false
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lastIsSpace := false
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for _, r := range str {
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if unicode.IsSpace(r) {
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if lastIsChinese || lastIsSpace {
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continue
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}
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buf.WriteRune(' ')
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lastIsChinese = false
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lastIsSpace = true
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continue
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}
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lastIsSpace = false
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buf.WriteRune(r)
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if unicode.Is(unicode.Han, r) {
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lastIsChinese = true
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continue
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} else {
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lastIsChinese = false
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}
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}
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return buf.String()
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}
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