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Simplify toc structure

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This commit is contained in:
Matt Bierner
2022-01-19 12:49:14 -08:00
parent 7756c6d7c7
commit a2d7dfaf35
7 changed files with 75 additions and 91 deletions
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36
extensions/markdown-language-features/src/tableOfContentsProvider.ts
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@@ -28,34 +28,24 @@ export interface SkinnyTextDocument {
getText(): string;
}
export class TableOfContentsProvider {
private toc?: TocEntry[];
export class TableOfContents {
public static async create(engine: MarkdownEngine, document: SkinnyTextDocument): Promise<TableOfContents> {
const entries = await this.buildToc(engine, document);
return new TableOfContents(entries);
}
public constructor(
private engine: MarkdownEngine,
private document: SkinnyTextDocument
private constructor(
public readonly entries: readonly TocEntry[],
) { }
public async getToc(): Promise<TocEntry[]> {
if (!this.toc) {
try {
this.toc = await this.buildToc(this.document);
} catch (e) {
this.toc = [];
}
}
return this.toc;
}
public async lookup(fragment: string): Promise<TocEntry | undefined> {
const toc = await this.getToc();
public lookup(fragment: string): TocEntry | undefined {
const slug = githubSlugifier.fromHeading(fragment);
return toc.find(entry => entry.slug.equals(slug));
return this.entries.find(entry => entry.slug.equals(slug));
}
private async buildToc(document: SkinnyTextDocument): Promise<TocEntry[]> {
private static async buildToc(engine: MarkdownEngine, document: SkinnyTextDocument): Promise<TocEntry[]> {
const toc: TocEntry[] = [];
const tokens = await this.engine.parse(document);
const tokens = await engine.parse(document);
const existingSlugEntries = new Map<string, { count: number }>();
@@ -78,8 +68,8 @@ export class TableOfContentsProvider {
toc.push({
slug,
text: TableOfContentsProvider.getHeaderText(line.text),
level: TableOfContentsProvider.getHeaderLevel(heading.markup),
text: TableOfContents.getHeaderText(line.text),
level: TableOfContents.getHeaderLevel(heading.markup),
line: lineNumber,
location: new vscode.Location(document.uri,
new vscode.Range(lineNumber, 0, lineNumber, line.text.length))