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Clean up link provider

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This commit is contained in:
Matt Bierner
2022-03-29 14:36:41 -07:00
parent 93aad560e1
commit 2783263582
4 changed files with 38 additions and 26 deletions
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42
extensions/markdown-language-features/src/languageFeatures/documentLinkProvider.ts
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@@ -99,13 +99,25 @@ const angleBracketLinkRe = /^<(.*)>$/;
*
* <http://example.com> will be transformed to http://example.com
*/
export function stripAngleBrackets(link: string) {
function stripAngleBrackets(link: string) {
return link.replace(angleBracketLinkRe, '$1');
}
/**
* Matches `[text](link)`
*/
const linkPattern = /(\[((!\[[^\]]*?\]\(\s*)([^\s\(\)]+?)\s*\)\]|(?:\\\]|[^\]])*\])\(\s*)(([^\s\(\)]|\([^\s\(\)]*?\))+)\s*(".*?")?\)/g;
/**
* Matches `[text][ref]`
*/
const referenceLinkPattern = /(?:(\[((?:\\\]|[^\]])+)\]\[\s*?)([^\s\]]*?)\]|\[\s*?([^\s\]]*?)\])(?!\:)/g;
/**
* Matches `[text]: link`
*/
const definitionPattern = /^([\t ]*\[(?!\^)((?:\\\]|[^\]])+)\]:\s*)([^<]\S*|<[^>]+>)/gm;
const inlineCodePattern = /(?:^|[^`])(`+)(?:.+?|.*?(?:(?:\r?\n).+?)*?)(?:\r?\n)?\1(?:$|[^`])/gm;
interface CodeInDocument {
@@ -149,15 +161,12 @@ export class MdLinkProvider implements vscode.DocumentLinkProvider {
): Promise<vscode.DocumentLink[]> {
const text = document.getText();
return [
...(await this.providerInlineLinks(text, document)),
...this.provideReferenceLinks(text, document)
...(await this.getInlineLinks(text, document)),
...this.getReferenceLinks(text, document)
];
}
private async providerInlineLinks(
text: string,
document: vscode.TextDocument,
): Promise<vscode.DocumentLink[]> {
private async getInlineLinks(text: string, document: vscode.TextDocument): Promise<vscode.DocumentLink[]> {
const results: vscode.DocumentLink[] = [];
const codeInDocument = await findCode(document, this.engine);
for (const match of text.matchAll(linkPattern)) {
@@ -173,13 +182,8 @@ export class MdLinkProvider implements vscode.DocumentLinkProvider {
return results;
}
private provideReferenceLinks(
text: string,
document: vscode.TextDocument,
): vscode.DocumentLink[] {
const results: vscode.DocumentLink[] = [];
const definitions = MdLinkProvider.getDefinitions(text, document);
public *getReferenceLinks(text: string, document: vscode.TextDocument): Iterable<vscode.DocumentLink> {
const definitions = this.getDefinitions(text, document);
for (const match of text.matchAll(referenceLinkPattern)) {
let linkStart: vscode.Position;
let linkEnd: vscode.Position;
@@ -201,9 +205,9 @@ export class MdLinkProvider implements vscode.DocumentLinkProvider {
try {
const link = definitions.get(reference);
if (link) {
results.push(new vscode.DocumentLink(
yield new vscode.DocumentLink(
new vscode.Range(linkStart, linkEnd),
vscode.Uri.parse(`command:_markdown.moveCursorToPosition?${encodeURIComponent(JSON.stringify([link.linkRange.start.line, link.linkRange.start.character]))}`)));
vscode.Uri.parse(`command:_markdown.moveCursorToPosition?${encodeURIComponent(JSON.stringify([link.linkRange.start.line, link.linkRange.start.character]))}`));
}
} catch (e) {
// noop
@@ -214,17 +218,15 @@ export class MdLinkProvider implements vscode.DocumentLinkProvider {
try {
const linkData = parseLink(document, definition.link);
if (linkData) {
results.push(new vscode.DocumentLink(definition.linkRange, linkData.uri));
yield new vscode.DocumentLink(definition.linkRange, linkData.uri);
}
} catch (e) {
// noop
}
}
return results;
}
public static getDefinitions(text: string, document: vscode.TextDocument) {
public getDefinitions(text: string, document: vscode.TextDocument): Map<string, { readonly link: string; readonly linkRange: vscode.Range }> {
const out = new Map<string, { link: string; linkRange: vscode.Range }>();
for (const match of text.matchAll(definitionPattern)) {
const pre = match[1];