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Code Issues Packages Projects Releases Wiki Activity

Improve Katex copy robustness (#274194)

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This commit is contained in:
Paul
2025-11-03 10:24:08 -08:00
committed by GitHub
parent 411f0c8970
commit 944cb2ad74
9 changed files with 23 additions and 16 deletions
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11
src/vs/workbench/contrib/chat/browser/actions/chatCopyActions.ts
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@@ -12,6 +12,7 @@ import { CHAT_CATEGORY, stringifyItem } from './chatActions.js';
import { ChatTreeItem, IChatWidgetService } from '../chat.js';
import { ChatContextKeys } from '../../common/chatContextKeys.js';
import { IChatRequestViewModel, IChatResponseViewModel, isChatTreeItem, isRequestVM, isResponseVM } from '../../common/chatViewModel.js';
import { katexContainerClassName, katexContainerLatexAttributeName } from '../../../markdown/common/markedKatexExtension.js';
export function registerChatCopyActions() {
registerAction2(class CopyAllAction extends Action2 {
@@ -135,15 +136,13 @@ export function registerChatCopyActions() {
// Otherwise, fallback to querying from the active element
if (!selectedElement) {
// eslint-disable-next-line no-restricted-syntax
selectedElement = activeElement?.querySelector('.katex') ?? null;
selectedElement = activeElement?.querySelector(`.${katexContainerClassName}`) ?? null;
}
// Extract the LaTeX source from the annotation element
const katexElement = dom.isHTMLElement(selectedElement) ? selectedElement.closest('.katex') : null;
// eslint-disable-next-line no-restricted-syntax
const annotation = katexElement?.querySelector('annotation[encoding="application/x-tex"]');
if (annotation) {
const latexSource = annotation.textContent || '';
const katexElement = dom.isHTMLElement(selectedElement) ? selectedElement.closest(`.${katexContainerClassName}`) : null;
const latexSource = katexElement?.getAttribute(katexContainerLatexAttributeName) || '';
if (latexSource) {
await clipboardService.writeText(latexSource);
}
}

3
src/vs/workbench/contrib/chat/browser/chatWidget.ts
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@@ -95,6 +95,7 @@ import { ChatViewPane } from './chatViewPane.js';
import { ChatViewWelcomePart, IChatSuggestedPrompts, IChatViewWelcomeContent } from './viewsWelcome/chatViewWelcomeController.js';
import { IWorkspaceContextService, WorkbenchState } from '../../../../platform/workspace/common/workspace.js';
import { ILifecycleService } from '../../../services/lifecycle/common/lifecycle.js';
import { katexContainerClassName } from '../../markdown/common/markedKatexExtension.js';
const $ = dom.$;
@@ -2015,7 +2016,7 @@ export class ChatWidget extends Disposable implements IChatWidget {
// Check if the context menu was opened on a KaTeX element
const target = e.browserEvent.target as HTMLElement;
const isKatexElement = target.closest('.katex') !== null;
const isKatexElement = target.closest(`.${katexContainerClassName}`) !== null;
const scopedContextKeyService = this.contextKeyService.createOverlay([
[ChatContextKeys.responseIsFiltered.key, isResponseVM(selected) && !!selected.errorDetails?.responseIsFiltered],

3
src/vs/workbench/contrib/markdown/browser/markedKatexSupport.ts
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@@ -9,7 +9,7 @@ import { MarkdownSanitizerConfig } from '../../../../base/browser/markdownRender
import { CodeWindow } from '../../../../base/browser/window.js';
import { Lazy } from '../../../../base/common/lazy.js';
import type * as marked from '../../../../base/common/marked/marked.js';
import { MarkedKatexExtension } from '../common/markedKatexExtension.js';
import { katexContainerLatexAttributeName, MarkedKatexExtension } from '../common/markedKatexExtension.js';
export class MarkedKatexSupport {
@@ -32,6 +32,7 @@ export class MarkedKatexSupport {
'stretchy',
'encoding',
'accent',
katexContainerLatexAttributeName,
// SVG
'd',

10
src/vs/workbench/contrib/markdown/common/markedKatexExtension.ts
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@@ -3,9 +3,11 @@
* Licensed under the MIT License. See License.txt in the project root for license information.
*--------------------------------------------------------------------------------------------*/
import type * as marked from '../../../../base/common/marked/marked.js';
import { htmlAttributeEncodeValue } from '../../../../base/common/strings.js';
export const mathInlineRegExp = /(?<![a-zA-Z0-9])(?<dollars>\${1,2})(?!\$)((?:\\.|[^\\\n])*?(?:\\.|[^\\\n\$]))\k<dollars>(?![a-zA-Z0-9])/; // Non-standard, but ensure opening $ is not preceded and closing $ is not followed by word/number characters
export const katexContainerClassName = 'vscode-katex-container';
export const katexContainerLatexAttributeName = 'data-latex';
const inlineRule = new RegExp('^' + mathInlineRegExp.source);
@@ -32,11 +34,15 @@ export namespace MarkedKatexExtension {
return (token: marked.Tokens.Generic) => {
let out: string;
try {
out = katex.renderToString(token.text, {
const html = katex.renderToString(token.text, {
...options,
throwOnError: true,
displayMode: token.displayMode,
});
// Wrap in a container with attribute as a fallback for extracting the original LaTeX source
// This ensures we can always retrieve the source even if the annotation element is not present
out = `<span class="${katexContainerClassName}" ${katexContainerLatexAttributeName}="${htmlAttributeEncodeValue(token.text)}">${html}</span>`;
} catch {
// On failure, just use the original text including the wrapping $ or $$
out = token.raw;

2
src/vs/workbench/contrib/markdown/test/browser/__snapshots__/Markdown_Katex_Support_Test_Basic_inline_equation.0.snap
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@@ -1 +1 @@
<p>Hello <span class="katex"><span class="katex-mathml"><math><semantics><mrow><mfrac><mn>1</mn><mn>2</mn></mfrac></mrow><annotation encoding="application/x-tex">\frac{1}{2}</annotation></semantics></math></span><span class="katex-html"><span class="base"><span class="strut" style="height: 1.1901em; vertical-align: -0.345em"></span><span class="mord"><span class="mopen nulldelimiter"></span><span class="mfrac"><span class="vlist-t vlist-t2"><span class="vlist-r"><span class="vlist" style="height: 0.8451em"><span style="top: -2.655em"><span class="pstrut" style="height: 3em"></span><span class="sizing reset-size6 size3 mtight"><span class="mord mtight"><span class="mord mtight">2</span></span></span></span><span style="top: -3.23em"><span class="pstrut" style="height: 3em"></span><span class="frac-line" style="border-bottom-width: 0.04em"></span></span><span style="top: -3.394em"><span class="pstrut" style="height: 3em"></span><span class="sizing reset-size6 size3 mtight"><span class="mord mtight"><span class="mord mtight">1</span></span></span></span></span><span class="vlist-s">​</span></span><span class="vlist-r"><span class="vlist" style="height: 0.345em"><span></span></span></span></span></span><span class="mclose nulldelimiter"></span></span></span></span></span> World!</p>
<p>Hello <span class="vscode-katex-container" data-latex="\frac{1}{2}"><span class="katex"><span class="katex-mathml"><math><semantics><mrow><mfrac><mn>1</mn><mn>2</mn></mfrac></mrow><annotation encoding="application/x-tex">\frac{1}{2}</annotation></semantics></math></span><span class="katex-html"><span class="base"><span class="strut" style="height: 1.1901em; vertical-align: -0.345em"></span><span class="mord"><span class="mopen nulldelimiter"></span><span class="mfrac"><span class="vlist-t vlist-t2"><span class="vlist-r"><span class="vlist" style="height: 0.8451em"><span style="top: -2.655em"><span class="pstrut" style="height: 3em"></span><span class="sizing reset-size6 size3 mtight"><span class="mord mtight"><span class="mord mtight">2</span></span></span></span><span style="top: -3.23em"><span class="pstrut" style="height: 3em"></span><span class="frac-line" style="border-bottom-width: 0.04em"></span></span><span style="top: -3.394em"><span class="pstrut" style="height: 3em"></span><span class="sizing reset-size6 size3 mtight"><span class="mord mtight"><span class="mord mtight">1</span></span></span></span></span><span class="vlist-s">​</span></span><span class="vlist-r"><span class="vlist" style="height: 0.345em"><span></span></span></span></span></span><span class="mclose nulldelimiter"></span></span></span></span></span></span> World!</p>

2
src/vs/workbench/contrib/markdown/test/browser/__snapshots__/Markdown_Katex_Support_Test_Should_still_render_math_at_start_and_end_of_line.0.snap
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@@ -1 +1 @@
<p><span class="katex"><span class="katex-mathml"><math><semantics><mrow><mfrac><mn>1</mn><mn>2</mn></mfrac></mrow><annotation encoding="application/x-tex">\frac{1}{2}</annotation></semantics></math></span><span class="katex-html"><span class="base"><span class="strut" style="height: 1.1901em; vertical-align: -0.345em"></span><span class="mord"><span class="mopen nulldelimiter"></span><span class="mfrac"><span class="vlist-t vlist-t2"><span class="vlist-r"><span class="vlist" style="height: 0.8451em"><span style="top: -2.655em"><span class="pstrut" style="height: 3em"></span><span class="sizing reset-size6 size3 mtight"><span class="mord mtight"><span class="mord mtight">2</span></span></span></span><span style="top: -3.23em"><span class="pstrut" style="height: 3em"></span><span class="frac-line" style="border-bottom-width: 0.04em"></span></span><span style="top: -3.394em"><span class="pstrut" style="height: 3em"></span><span class="sizing reset-size6 size3 mtight"><span class="mord mtight"><span class="mord mtight">1</span></span></span></span></span><span class="vlist-s">​</span></span><span class="vlist-r"><span class="vlist" style="height: 0.345em"><span></span></span></span></span></span><span class="mclose nulldelimiter"></span></span></span></span></span> at start, and at end <span class="katex"><span class="katex-mathml"><math><semantics><mrow><msup><mi>x</mi><mn>2</mn></msup></mrow><annotation encoding="application/x-tex">x^2</annotation></semantics></math></span><span class="katex-html"><span class="base"><span class="strut" style="height: 0.8141em"></span><span class="mord"><span class="mord mathnormal">x</span><span class="msupsub"><span class="vlist-t"><span class="vlist-r"><span class="vlist" style="height: 0.8141em"><span style="top: -3.063em; margin-right: 0.05em"><span class="pstrut" style="height: 2.7em"></span><span class="sizing reset-size6 size3 mtight"><span class="mord mtight">2</span></span></span></span></span></span></span></span></span></span></span></p>
<p><span class="vscode-katex-container" data-latex="\frac{1}{2}"><span class="katex"><span class="katex-mathml"><math><semantics><mrow><mfrac><mn>1</mn><mn>2</mn></mfrac></mrow><annotation encoding="application/x-tex">\frac{1}{2}</annotation></semantics></math></span><span class="katex-html"><span class="base"><span class="strut" style="height: 1.1901em; vertical-align: -0.345em"></span><span class="mord"><span class="mopen nulldelimiter"></span><span class="mfrac"><span class="vlist-t vlist-t2"><span class="vlist-r"><span class="vlist" style="height: 0.8451em"><span style="top: -2.655em"><span class="pstrut" style="height: 3em"></span><span class="sizing reset-size6 size3 mtight"><span class="mord mtight"><span class="mord mtight">2</span></span></span></span><span style="top: -3.23em"><span class="pstrut" style="height: 3em"></span><span class="frac-line" style="border-bottom-width: 0.04em"></span></span><span style="top: -3.394em"><span class="pstrut" style="height: 3em"></span><span class="sizing reset-size6 size3 mtight"><span class="mord mtight"><span class="mord mtight">1</span></span></span></span></span><span class="vlist-s">​</span></span><span class="vlist-r"><span class="vlist" style="height: 0.345em"><span></span></span></span></span></span><span class="mclose nulldelimiter"></span></span></span></span></span></span> at start, and at end <span class="vscode-katex-container" data-latex="x^2"><span class="katex"><span class="katex-mathml"><math><semantics><mrow><msup><mi>x</mi><mn>2</mn></msup></mrow><annotation encoding="application/x-tex">x^2</annotation></semantics></math></span><span class="katex-html"><span class="base"><span class="strut" style="height: 0.8141em"></span><span class="mord"><span class="mord mathnormal">x</span><span class="msupsub"><span class="vlist-t"><span class="vlist-r"><span class="vlist" style="height: 0.8141em"><span style="top: -3.063em; margin-right: 0.05em"><span class="pstrut" style="height: 2.7em"></span><span class="sizing reset-size6 size3 mtight"><span class="mord mtight">2</span></span></span></span></span></span></span></span></span></span></span></span></p>

2
src/vs/workbench/contrib/markdown/test/browser/__snapshots__/Markdown_Katex_Support_Test_Should_still_render_math_with_special_characters_around_dollars.0.snap
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@@ -1 +1 @@
<p>Hello (<span class="katex"><span class="katex-mathml"><math><semantics><mrow><mfrac><mn>1</mn><mn>2</mn></mfrac></mrow><annotation encoding="application/x-tex">\frac{1}{2}</annotation></semantics></math></span><span class="katex-html"><span class="base"><span class="strut" style="height: 1.1901em; vertical-align: -0.345em"></span><span class="mord"><span class="mopen nulldelimiter"></span><span class="mfrac"><span class="vlist-t vlist-t2"><span class="vlist-r"><span class="vlist" style="height: 0.8451em"><span style="top: -2.655em"><span class="pstrut" style="height: 3em"></span><span class="sizing reset-size6 size3 mtight"><span class="mord mtight"><span class="mord mtight">2</span></span></span></span><span style="top: -3.23em"><span class="pstrut" style="height: 3em"></span><span class="frac-line" style="border-bottom-width: 0.04em"></span></span><span style="top: -3.394em"><span class="pstrut" style="height: 3em"></span><span class="sizing reset-size6 size3 mtight"><span class="mord mtight"><span class="mord mtight">1</span></span></span></span></span><span class="vlist-s">​</span></span><span class="vlist-r"><span class="vlist" style="height: 0.345em"><span></span></span></span></span></span><span class="mclose nulldelimiter"></span></span></span></span></span>) and [<span class="katex"><span class="katex-mathml"><math><semantics><mrow><msup><mi>x</mi><mn>2</mn></msup></mrow><annotation encoding="application/x-tex">x^2</annotation></semantics></math></span><span class="katex-html"><span class="base"><span class="strut" style="height: 0.8141em"></span><span class="mord"><span class="mord mathnormal">x</span><span class="msupsub"><span class="vlist-t"><span class="vlist-r"><span class="vlist" style="height: 0.8141em"><span style="top: -3.063em; margin-right: 0.05em"><span class="pstrut" style="height: 2.7em"></span><span class="sizing reset-size6 size3 mtight"><span class="mord mtight">2</span></span></span></span></span></span></span></span></span></span></span>] work fine</p>
<p>Hello (<span class="vscode-katex-container" data-latex="\frac{1}{2}"><span class="katex"><span class="katex-mathml"><math><semantics><mrow><mfrac><mn>1</mn><mn>2</mn></mfrac></mrow><annotation encoding="application/x-tex">\frac{1}{2}</annotation></semantics></math></span><span class="katex-html"><span class="base"><span class="strut" style="height: 1.1901em; vertical-align: -0.345em"></span><span class="mord"><span class="mopen nulldelimiter"></span><span class="mfrac"><span class="vlist-t vlist-t2"><span class="vlist-r"><span class="vlist" style="height: 0.8451em"><span style="top: -2.655em"><span class="pstrut" style="height: 3em"></span><span class="sizing reset-size6 size3 mtight"><span class="mord mtight"><span class="mord mtight">2</span></span></span></span><span style="top: -3.23em"><span class="pstrut" style="height: 3em"></span><span class="frac-line" style="border-bottom-width: 0.04em"></span></span><span style="top: -3.394em"><span class="pstrut" style="height: 3em"></span><span class="sizing reset-size6 size3 mtight"><span class="mord mtight"><span class="mord mtight">1</span></span></span></span></span><span class="vlist-s">​</span></span><span class="vlist-r"><span class="vlist" style="height: 0.345em"><span></span></span></span></span></span><span class="mclose nulldelimiter"></span></span></span></span></span></span>) and [<span class="vscode-katex-container" data-latex="x^2"><span class="katex"><span class="katex-mathml"><math><semantics><mrow><msup><mi>x</mi><mn>2</mn></msup></mrow><annotation encoding="application/x-tex">x^2</annotation></semantics></math></span><span class="katex-html"><span class="base"><span class="strut" style="height: 0.8141em"></span><span class="mord"><span class="mord mathnormal">x</span><span class="msupsub"><span class="vlist-t"><span class="vlist-r"><span class="vlist" style="height: 0.8141em"><span style="top: -3.063em; margin-right: 0.05em"><span class="pstrut" style="height: 2.7em"></span><span class="sizing reset-size6 size3 mtight"><span class="mord mtight">2</span></span></span></span></span></span></span></span></span></span></span></span>] work fine</p>

4
src/vs/workbench/contrib/markdown/test/browser/__snapshots__/Markdown_Katex_Support_Test_Should_support_blocks_immediately_after_paragraph.0.snap
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@@ -1,4 +1,4 @@
<p>Block example:</p><span class="katex-display"><span class="katex"><span class="katex-mathml"><math><semantics><mrow><msubsup><mo>∫</mo><mrow><mo>−</mo><mi>∞</mi></mrow><mi>∞</mi></msubsup><msup><mi>e</mi><mrow><mo>−</mo><msup><mi>x</mi><mn>2</mn></msup></mrow></msup><mi>d</mi><mi>x</mi><mo>=</mo><msqrt><mi>π</mi></msqrt></mrow><annotation encoding="application/x-tex">\int_{-\infty}^{\infty} e^{-x^2} dx = \sqrt{\pi}</annotation></semantics></math></span><span class="katex-html"><span class="base"><span class="strut" style="height: 2.3846em; vertical-align: -0.9703em"></span><span class="mop"><span class="mop op-symbol large-op" style="margin-right: 0.44445em; position: relative; top: -0.0011em">∫</span><span class="msupsub"><span class="vlist-t vlist-t2"><span class="vlist-r"><span class="vlist" style="height: 1.4143em"><span style="top: -1.7881em; margin-left: -0.4445em; margin-right: 0.05em"><span class="pstrut" style="height: 2.7em"></span><span class="sizing reset-size6 size3 mtight"><span class="mord mtight"><span class="mord mtight">−</span><span class="mord mtight">∞</span></span></span></span><span style="top: -3.8129em; margin-right: 0.05em"><span class="pstrut" style="height: 2.7em"></span><span class="sizing reset-size6 size3 mtight"><span class="mord mtight"><span class="mord mtight">∞</span></span></span></span></span><span class="vlist-s">​</span></span><span class="vlist-r"><span class="vlist" style="height: 0.9703em"><span></span></span></span></span></span></span><span class="mspace" style="margin-right: 0.1667em"></span><span class="mord"><span class="mord mathnormal">e</span><span class="msupsub"><span class="vlist-t"><span class="vlist-r"><span class="vlist" style="height: 1.0369em"><span style="top: -3.113em; margin-right: 0.05em"><span class="pstrut" style="height: 2.7em"></span><span class="sizing reset-size6 size3 mtight"><span class="mord mtight"><span class="mord mtight">−</span><span class="mord mtight"><span class="mord mathnormal mtight">x</span><span class="msupsub"><span class="vlist-t"><span class="vlist-r"><span class="vlist" style="height: 0.8913em"><span style="top: -2.931em; margin-right: 0.0714em"><span class="pstrut" style="height: 2.5em"></span><span class="sizing reset-size3 size1 mtight"><span class="mord mtight">2</span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span><span class="mord mathnormal">d</span><span class="mord mathnormal">x</span><span class="mspace" style="margin-right: 0.2778em"></span><span class="mrel">=</span><span class="mspace" style="margin-right: 0.2778em"></span></span><span class="base"><span class="strut" style="height: 1.04em; vertical-align: -0.1908em"></span><span class="mord sqrt"><span class="vlist-t vlist-t2"><span class="vlist-r"><span class="vlist" style="height: 0.8492em"><span class="svg-align" style="top: -3em"><span class="pstrut" style="height: 3em"></span><span class="mord" style="padding-left: 0.833em"><span class="mord mathnormal" style="margin-right: 0.03588em">π</span></span></span><span style="top: -2.8092em"><span class="pstrut" style="height: 3em"></span><span class="hide-tail" style="min-width: 0.853em; height: 1.08em"><svg width="400em" height="1.08em" viewBox="0 0 400000 1080" preserveAspectRatio="xMinYMin slice"><path d="M95,702
<p>Block example:</p><span class="vscode-katex-container" data-latex="\int_{-\infty}^{\infty} e^{-x^2} dx = \sqrt{\pi}"><span class="katex-display"><span class="katex"><span class="katex-mathml"><math><semantics><mrow><msubsup><mo>∫</mo><mrow><mo>−</mo><mi>∞</mi></mrow><mi>∞</mi></msubsup><msup><mi>e</mi><mrow><mo>−</mo><msup><mi>x</mi><mn>2</mn></msup></mrow></msup><mi>d</mi><mi>x</mi><mo>=</mo><msqrt><mi>π</mi></msqrt></mrow><annotation encoding="application/x-tex">\int_{-\infty}^{\infty} e^{-x^2} dx = \sqrt{\pi}</annotation></semantics></math></span><span class="katex-html"><span class="base"><span class="strut" style="height: 2.3846em; vertical-align: -0.9703em"></span><span class="mop"><span class="mop op-symbol large-op" style="margin-right: 0.44445em; position: relative; top: -0.0011em">∫</span><span class="msupsub"><span class="vlist-t vlist-t2"><span class="vlist-r"><span class="vlist" style="height: 1.4143em"><span style="top: -1.7881em; margin-left: -0.4445em; margin-right: 0.05em"><span class="pstrut" style="height: 2.7em"></span><span class="sizing reset-size6 size3 mtight"><span class="mord mtight"><span class="mord mtight">−</span><span class="mord mtight">∞</span></span></span></span><span style="top: -3.8129em; margin-right: 0.05em"><span class="pstrut" style="height: 2.7em"></span><span class="sizing reset-size6 size3 mtight"><span class="mord mtight"><span class="mord mtight">∞</span></span></span></span></span><span class="vlist-s">​</span></span><span class="vlist-r"><span class="vlist" style="height: 0.9703em"><span></span></span></span></span></span></span><span class="mspace" style="margin-right: 0.1667em"></span><span class="mord"><span class="mord mathnormal">e</span><span class="msupsub"><span class="vlist-t"><span class="vlist-r"><span class="vlist" style="height: 1.0369em"><span style="top: -3.113em; margin-right: 0.05em"><span class="pstrut" style="height: 2.7em"></span><span class="sizing reset-size6 size3 mtight"><span class="mord mtight"><span class="mord mtight">−</span><span class="mord mtight"><span class="mord mathnormal mtight">x</span><span class="msupsub"><span class="vlist-t"><span class="vlist-r"><span class="vlist" style="height: 0.8913em"><span style="top: -2.931em; margin-right: 0.0714em"><span class="pstrut" style="height: 2.5em"></span><span class="sizing reset-size3 size1 mtight"><span class="mord mtight">2</span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span><span class="mord mathnormal">d</span><span class="mord mathnormal">x</span><span class="mspace" style="margin-right: 0.2778em"></span><span class="mrel">=</span><span class="mspace" style="margin-right: 0.2778em"></span></span><span class="base"><span class="strut" style="height: 1.04em; vertical-align: -0.1908em"></span><span class="mord sqrt"><span class="vlist-t vlist-t2"><span class="vlist-r"><span class="vlist" style="height: 0.8492em"><span class="svg-align" style="top: -3em"><span class="pstrut" style="height: 3em"></span><span class="mord" style="padding-left: 0.833em"><span class="mord mathnormal" style="margin-right: 0.03588em">π</span></span></span><span style="top: -2.8092em"><span class="pstrut" style="height: 3em"></span><span class="hide-tail" style="min-width: 0.853em; height: 1.08em"><svg width="400em" height="1.08em" viewBox="0 0 400000 1080" preserveAspectRatio="xMinYMin slice"><path d="M95,702
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2
src/vs/workbench/contrib/markdown/test/browser/__snapshots__/Markdown_Katex_Support_Test_Should_support_inline_equation_wrapped_in_parans.0.snap
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@@ -1 +1 @@
<p>Hello (<span class="katex"><span class="katex-mathml"><math><semantics><mrow><mfrac><mn>1</mn><mn>2</mn></mfrac></mrow><annotation encoding="application/x-tex">\frac{1}{2}</annotation></semantics></math></span><span class="katex-html"><span class="base"><span class="strut" style="height: 1.1901em; vertical-align: -0.345em"></span><span class="mord"><span class="mopen nulldelimiter"></span><span class="mfrac"><span class="vlist-t vlist-t2"><span class="vlist-r"><span class="vlist" style="height: 0.8451em"><span style="top: -2.655em"><span class="pstrut" style="height: 3em"></span><span class="sizing reset-size6 size3 mtight"><span class="mord mtight"><span class="mord mtight">2</span></span></span></span><span style="top: -3.23em"><span class="pstrut" style="height: 3em"></span><span class="frac-line" style="border-bottom-width: 0.04em"></span></span><span style="top: -3.394em"><span class="pstrut" style="height: 3em"></span><span class="sizing reset-size6 size3 mtight"><span class="mord mtight"><span class="mord mtight">1</span></span></span></span></span><span class="vlist-s">​</span></span><span class="vlist-r"><span class="vlist" style="height: 0.345em"><span></span></span></span></span></span><span class="mclose nulldelimiter"></span></span></span></span></span>) World!</p>
<p>Hello (<span class="vscode-katex-container" data-latex="\frac{1}{2}"><span class="katex"><span class="katex-mathml"><math><semantics><mrow><mfrac><mn>1</mn><mn>2</mn></mfrac></mrow><annotation encoding="application/x-tex">\frac{1}{2}</annotation></semantics></math></span><span class="katex-html"><span class="base"><span class="strut" style="height: 1.1901em; vertical-align: -0.345em"></span><span class="mord"><span class="mopen nulldelimiter"></span><span class="mfrac"><span class="vlist-t vlist-t2"><span class="vlist-r"><span class="vlist" style="height: 0.8451em"><span style="top: -2.655em"><span class="pstrut" style="height: 3em"></span><span class="sizing reset-size6 size3 mtight"><span class="mord mtight"><span class="mord mtight">2</span></span></span></span><span style="top: -3.23em"><span class="pstrut" style="height: 3em"></span><span class="frac-line" style="border-bottom-width: 0.04em"></span></span><span style="top: -3.394em"><span class="pstrut" style="height: 3em"></span><span class="sizing reset-size6 size3 mtight"><span class="mord mtight"><span class="mord mtight">1</span></span></span></span></span><span class="vlist-s">​</span></span><span class="vlist-r"><span class="vlist" style="height: 0.345em"><span></span></span></span></span></span><span class="mclose nulldelimiter"></span></span></span></span></span></span>) World!</p>