update at 2025-09-22 13:55:41

src/markdown/text-highlight.ts

@@ -0,0 +1,66 @@
+/*
+ * Copyright (c) 2024-2025 Sun Booshi
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
+
+import { Token, Tokens, Lexer, MarkedExtension } from "marked";
+import { Extension } from "./extension";
+
+const highlightRegex = /^==(.*?)==/;
+
+export class TextHighlight extends Extension {
+    markedExtension(): MarkedExtension {
+        return {
+            extensions: [{
+                name: 'InlineHighlight',
+                level: 'inline',
+                start(src: string) {
+                    let index;
+                    let indexSrc = src;
+
+                    while (indexSrc) {
+                        index = indexSrc.indexOf('==');
+                        if (index === -1) return;
+                        return index;
+                    }
+                },
+                tokenizer(src: string, tokens: Token[]) {
+                    const match = src.match(highlightRegex);
+                    if (match) {
+                        return {
+                            type: 'InlineHighlight',
+                            raw: match[0],
+                            text: match[1],
+                        };
+                    }
+                },
+                renderer(token: Tokens.Generic) {
+                    const lexer = new Lexer();
+                    const tokens = lexer.lex(token.text);
+                    // TODO: 优化一下
+                    let body = this.parser.parse(tokens)
+                    body = body.replace('<p>', '')
+                    body = body.replace('</p>', '')
+                    return `<span class="note-highlight">${body}</span>`;
+                }
+            }]
+        };
+    }
+}