108 lines
3.0 KiB
TypeScript
108 lines
3.0 KiB
TypeScript
import { styleTags } from "@codemirror/highlight";
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import { BlockContext, LeafBlock, LeafBlockParser, MarkdownConfig, parseCode, TaskList } from "@lezer/markdown";
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import { commonmark, getCodeParser, mkLang } from "./markdown/markdown";
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import * as ct from "./customtags";
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import { Language, LanguageDescription, LanguageSupport } from "@codemirror/language";
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import { StreamLanguage } from "@codemirror/stream-parser";
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import { yaml } from "@codemirror/legacy-modes/mode/yaml";
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import { javascriptLanguage } from "@codemirror/lang-javascript";
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import { MDExt, mdExtensionStyleTags, mdExtensionSyntaxConfig } from "./markdown_ext";
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export const pageLinkRegex = /^\[\[([^\]]+)\]\]/;
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// const pageLinkRegexPrefix = new RegExp(
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// "^" + pageLinkRegex.toString().slice(1, -1)
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// );
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const WikiLink: MarkdownConfig = {
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defineNodes: ["WikiLink", "WikiLinkPage"],
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parseInline: [
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{
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name: "WikiLink",
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parse(cx, next, pos) {
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let match: RegExpMatchArray | null;
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if (
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next != 91 /* '[' */ ||
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!(match = pageLinkRegex.exec(cx.slice(pos, cx.end)))
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) {
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return -1;
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}
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return cx.addElement(
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cx.elt("WikiLink", pos, pos + match[0].length, [
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cx.elt("WikiLinkPage", pos + 2, pos + match[0].length - 2),
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])
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);
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},
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after: "Emphasis",
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},
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],
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};
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class CommentParser implements LeafBlockParser {
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nextLine() {
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return false;
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}
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finish(cx: BlockContext, leaf: LeafBlock) {
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cx.addLeafElement(
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leaf,
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cx.elt("Comment", leaf.start, leaf.start + leaf.content.length, [
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// cx.elt("CommentMarker", leaf.start, leaf.start + 3),
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...cx.parser.parseInline(leaf.content.slice(3), leaf.start + 3),
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])
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);
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return true;
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}
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}
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export const Comment: MarkdownConfig = {
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defineNodes: [{ name: "Comment", block: true }],
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parseBlock: [
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{
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name: "Comment",
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leaf(cx, leaf) {
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return /^%%\s/.test(leaf.content) ? new CommentParser() : null;
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},
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after: "SetextHeading",
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},
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],
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};
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export default function buildMarkdown(mdExtensions: MDExt[]): Language {
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return mkLang(
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commonmark.configure([
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WikiLink,
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TaskList,
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Comment,
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...mdExtensions.map(mdExtensionSyntaxConfig),
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parseCode({
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codeParser: getCodeParser([
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LanguageDescription.of({
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name: "yaml",
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alias: ["meta", "data"],
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support: new LanguageSupport(StreamLanguage.define(yaml)),
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}),
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LanguageDescription.of({
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name: "javascript",
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alias: ["js"],
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support: new LanguageSupport(javascriptLanguage),
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}),
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]),
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}),
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{
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props: [
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styleTags({
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WikiLink: ct.WikiLinkTag,
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WikiLinkPage: ct.WikiLinkPageTag,
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Task: ct.TaskTag,
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TaskMarker: ct.TaskMarkerTag,
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Comment: ct.CommentTag,
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}),
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...mdExtensions.map((mdExt) =>
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styleTags(mdExtensionStyleTags(mdExt))
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),
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],
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},
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])
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);
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}
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