45 lines
1.1 KiB
TypeScript
45 lines
1.1 KiB
TypeScript
import { Decoration, EditorState, syntaxTree } from "../deps.ts";
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import { decoratorStateField, isCursorInRange } from "./util.ts";
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function getDirectives(state: EditorState) {
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const widgets: any[] = [];
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syntaxTree(state).iterate({
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enter: ({ type, from, to }) => {
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if (type.name !== "CommentBlock") {
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return;
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}
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const text = state.sliceDoc(from, to);
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if (/<!--\s*#/.exec(text)) {
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// Open directive
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widgets.push(
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Decoration.line({
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class: "sb-directive-start",
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}).range(from),
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);
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} else if (/<!--\s*\//.exec(text)) {
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widgets.push(
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Decoration.line({
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class: "sb-directive-end",
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}).range(from),
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);
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} else {
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return;
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}
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if (!isCursorInRange(state, [from, to])) {
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widgets.push(
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Decoration.line({
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class: "sb-directive-outside",
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}).range(from),
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);
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}
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},
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});
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return Decoration.set(widgets, true);
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}
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export function directivePlugin() {
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return decoratorStateField(getDirectives);
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}
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