mirror of
https://github.com/siyuan-note/siyuan.git
synced 2025-05-02 20:30:36 +08:00
50 lines
1.5 KiB
Go
50 lines
1.5 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 treenode
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import (
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"github.com/88250/gulu"
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"github.com/88250/lute/lex"
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)
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func ContainsMarker(str string) (ret string) {
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if !gulu.Str.IsASCII(str) {
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return
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}
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for _, token := range str {
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if IsMarker(byte(token)) {
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return string(token)
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}
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}
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return
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}
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func IsMarker(token byte) bool {
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switch token {
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case lex.ItemAsterisk, lex.ItemUnderscore, lex.ItemOpenBracket, lex.ItemCloseBracket, lex.ItemNewline,
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lex.ItemBang, lex.ItemBackslash, lex.ItemBacktick, lex.ItemLess, lex.ItemGreater,
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lex.ItemAmpersand, lex.ItemTilde, lex.ItemDollar, lex.ItemOpenBrace, lex.ItemCloseBrace,
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lex.ItemOpenParen, lex.ItemCloseParen, lex.ItemEqual, lex.ItemCrosshatch:
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return true
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case lex.ItemCaret:
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return true
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default:
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return false
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}
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}
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