66 lines
2.0 KiB
TypeScript
66 lines
2.0 KiB
TypeScript
import { nodeAtPos, ParseTree, renderToText } from "$sb/lib/tree.ts";
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import { replaceAsync } from "$sb/lib/util.ts";
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import { markdown } from "$sb/silverbullet-syscall/mod.ts";
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import { extractMeta } from "./data.ts";
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import { evalDirectiveRenderer } from "./eval_directive.ts";
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import { queryDirectiveRenderer } from "./query_directive.ts";
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import {
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cleanTemplateInstantiations,
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templateDirectiveRenderer,
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} from "./template_directive.ts";
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export const directiveRegex =
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/(<!--\s*#(use|use-verbose|include|eval|query)\s+(.*?)-->)(.+?)(<!--\s*\/\2\s*-->)/gs;
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/**
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* Looks for directives in the text dispatches them based on name
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*/
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export async function directiveDispatcher(
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pageName: string,
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text: string,
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tree: ParseTree,
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directiveRenderers: Record<
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string,
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(directive: string, pageName: string, arg: string) => Promise<string>
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>,
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): Promise<string> {
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return replaceAsync(
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text,
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directiveRegex,
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async (fullMatch, startInst, type, arg, _body, endInst, index) => {
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const currentNode = nodeAtPos(tree, index + 1);
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// console.log("Node type", currentNode?.type);
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if (currentNode?.type !== "CommentBlock") {
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// If not a comment block, it's likely a code block, ignore
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// console.log("Not comment block, ingoring", fullMatch);
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return fullMatch;
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}
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arg = arg.trim();
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try {
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const newBody = await directiveRenderers[type](type, pageName, arg);
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return `${startInst}\n${newBody.trim()}\n${endInst}`;
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} catch (e: any) {
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return `${startInst}\n**ERROR:** ${e.message}\n${endInst}`;
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}
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},
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);
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}
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export async function renderDirectives(
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pageName: string,
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text: string,
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): Promise<string> {
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const tree = await markdown.parseMarkdown(text);
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text = await directiveDispatcher(pageName, text, tree, {
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use: templateDirectiveRenderer,
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"use-verbose": templateDirectiveRenderer,
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"include": templateDirectiveRenderer,
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query: queryDirectiveRenderer,
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eval: evalDirectiveRenderer,
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});
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return await cleanTemplateInstantiations(text);
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}
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