46 lines
1.6 KiB
TypeScript
46 lines
1.6 KiB
TypeScript
/* 文件：markdown/text-highlight.ts — 文本高亮（强调）语法的解析与样式。 */
|
||
|
||
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>`;
|
||
}
|
||
}]
|
||
};
|
||
}
|
||
} |