diff --git a/reports/sizes.json b/reports/sizes.json
index 3518990..98cff4c 100644
--- a/reports/sizes.json
+++ b/reports/sizes.json
@@ -1,40 +1,40 @@
{
- "generatedAt": "2026-07-26T03:30:47.396Z",
+ "generatedAt": "2026-07-29T02:36:13.985Z",
"results": [
{
"group": "tanstack",
"name": "parser only",
- "minBytes": 14017,
- "gzipBytes": 4942,
- "brotliBytes": 4549
+ "minBytes": 14043,
+ "gzipBytes": 4970,
+ "brotliBytes": 4571
},
{
"group": "tanstack",
"name": "html renderer no highlighter",
- "minBytes": 19095,
- "gzipBytes": 6765,
- "brotliBytes": 6191
+ "minBytes": 19120,
+ "gzipBytes": 6781,
+ "brotliBytes": 6203
},
{
"group": "tanstack",
"name": "html renderer with external highlighter stub",
- "minBytes": 19131,
- "gzipBytes": 6786,
- "brotliBytes": 6210
+ "minBytes": 19156,
+ "gzipBytes": 6802,
+ "brotliBytes": 6223
},
{
"group": "tanstack",
"name": "react adapter",
- "minBytes": 19060,
- "gzipBytes": 6681,
- "brotliBytes": 6141
+ "minBytes": 19085,
+ "gzipBytes": 6704,
+ "brotliBytes": 6166
},
{
"group": "tanstack",
"name": "octane adapter",
- "minBytes": 19063,
- "gzipBytes": 6680,
- "brotliBytes": 6144
+ "minBytes": 19088,
+ "gzipBytes": 6701,
+ "brotliBytes": 6169
},
{
"group": "tanstack",
@@ -60,9 +60,9 @@
{
"group": "tanstack",
"name": "react adapter with streaming extension",
- "minBytes": 19751,
- "gzipBytes": 6862,
- "brotliBytes": 6295
+ "minBytes": 19776,
+ "gzipBytes": 6886,
+ "brotliBytes": 6331
},
{
"group": "tanstack",
diff --git a/reports/sizes.md b/reports/sizes.md
index 548f8d7..b39756c 100644
--- a/reports/sizes.md
+++ b/reports/sizes.md
@@ -1,20 +1,20 @@
# Bundle Size Results
-Generated: 2026-07-26T03:30:47.397Z
+Generated: 2026-07-29T02:36:13.986Z
Bundles are ESM, browser-targeted, minified with esbuild, then gzip and brotli compressed. Framework runtimes are externalized for the React and Octane adapters.
| Group | Entry | Min bytes | Gzip bytes | Brotli bytes |
| :--- | :--- | ---: | ---: | ---: |
-| tanstack | parser only | 14017 | 4942 | 4549 |
-| tanstack | html renderer no highlighter | 19095 | 6765 | 6191 |
-| tanstack | html renderer with external highlighter stub | 19131 | 6786 | 6210 |
-| tanstack | react adapter | 19060 | 6681 | 6141 |
-| tanstack | octane adapter | 19063 | 6680 | 6144 |
+| tanstack | parser only | 14043 | 4970 | 4571 |
+| tanstack | html renderer no highlighter | 19120 | 6781 | 6203 |
+| tanstack | html renderer with external highlighter stub | 19156 | 6802 | 6223 |
+| tanstack | react adapter | 19085 | 6704 | 6166 |
+| tanstack | octane adapter | 19088 | 6701 | 6169 |
| tanstack | docs extension preset | 6792 | 2398 | 2188 |
| tanstack | callouts extension | 556 | 372 | 329 |
| tanstack | streaming extension | 699 | 311 | 253 |
-| tanstack | react adapter with streaming extension | 19751 | 6862 | 6295 |
+| tanstack | react adapter with streaming extension | 19776 | 6886 | 6331 |
| tanstack | tabs transforms | 3398 | 1255 | 1103 |
| markdown | marked | 41415 | 12548 | 11509 |
| markdown | markdown-it | 148242 | 52655 | 44023 |
diff --git a/src/inline.ts b/src/inline.ts
index f3aa5e7..5be64e1 100644
--- a/src/inline.ts
+++ b/src/inline.ts
@@ -361,6 +361,13 @@ function findDelimiter(value: string, start: number, delimiter: string, budget:
for (let index = start; index < value.length; index++) {
if (!takeScan(budget)) return -1
if (value[index - 1] === '\\') continue
+ if (!delimiter[1] && value[index + 1] === delimiter) {
+ const close = findDelimiter(value, index + 2, delimiter + delimiter, budget)
+ if (close > index + 2) {
+ index = close + 1
+ continue
+ }
+ }
if (delimiter === '~~' && (value[index - 1] === '~' || value[index + 2] === '~')) continue
if (delimiter[0] === '_' && !canUseUnderscore(value, index, delimiter.length, false)) continue
if (value.startsWith(delimiter, index)) return index
@@ -369,7 +376,7 @@ function findDelimiter(value: string, start: number, delimiter: string, budget:
}
function findSingleTildeDelimiter(value: string, start: number, budget: InlineParseBudget): number {
- if (isWhitespace(value[start] ?? '') || /\d/.test(value[start] ?? '')) return -1
+ if (isDelimiterWhitespace(value[start]) || /\d/.test(value[start]!)) return -1
for (let index = start; index < value.length; index++) {
if (!takeScan(budget)) return -1
@@ -377,7 +384,7 @@ function findSingleTildeDelimiter(value: string, start: number, budget: InlinePa
if (value[index] !== '~') continue
if (value[index - 1] === '~') continue
if (value[index + 1] === '~') continue
- if (isWhitespace(value[index - 1] ?? '')) return -1
+ if (isDelimiterWhitespace(value[index - 1])) return -1
return index
}
@@ -414,10 +421,6 @@ function isPunctuation(value: string | undefined): boolean {
return value !== undefined && /[^\p{L}\p{N}\s]/u.test(value)
}
-function isWhitespace(value: string): boolean {
- return /\s/.test(value)
-}
-
function textFromMarkdown(value: string, budget: InlineParseBudget): string {
return parseInlineRaw(value, {}, budget).map(node => (node.type === 'text' || node.type === 'inlineCode' ? node.value : '')).join('')
}
diff --git a/tests/bundle-size.test.ts b/tests/bundle-size.test.ts
index 5d15c82..fdf162d 100644
--- a/tests/bundle-size.test.ts
+++ b/tests/bundle-size.test.ts
@@ -16,10 +16,10 @@ describe('bundle budgets', () => {
)
expect(parser.gzipBytes).toBeLessThan(4_975)
- expect(html.gzipBytes).toBeLessThan(6_775)
- expect(react.gzipBytes).toBeLessThan(6_700)
- expect(octane.gzipBytes).toBeLessThan(6_700)
- expect(pluggable.gzipBytes).toBeLessThan(6_800)
+ expect(html.gzipBytes).toBeLessThan(6_785)
+ expect(react.gzipBytes).toBeLessThan(6_707)
+ expect(octane.gzipBytes).toBeLessThan(6_705)
+ expect(pluggable.gzipBytes).toBeLessThan(6_805)
expect(streaming.gzipBytes).toBeLessThan(400)
expect(reactStreaming.gzipBytes).toBeLessThan(7_000)
expect(html.code).not.toContain('external-line')
diff --git a/tests/markdown.test.tsx b/tests/markdown.test.tsx
index 0cca9f0..ba52b73 100644
--- a/tests/markdown.test.tsx
+++ b/tests/markdown.test.tsx
@@ -17,6 +17,21 @@ describe('TanStack Markdown', () => {
expect(renderToStaticMarkup({source})).toBe(expected)
})
+ it('nests strong inside emphasis', () => {
+ const cases = [
+ ['*a **b** c*', 'a b c
'],
+ ['*see **the docs** here*', 'see the docs here
'],
+ ['_italic __bold__ tail_', 'italic bold tail
'],
+ ['*outer **inner***', 'outer inner
'],
+ ['*a **b\\** c*', 'a b* c*
'],
+ ]
+
+ for (const [source, expected] of cases) {
+ expect(renderHtml(source!)).toBe(expected)
+ expect(renderToStaticMarkup({source!})).toBe(expected)
+ }
+ })
+
it('preserves escaped type brackets around linked API types when HTML is enabled', () => {
const source = '`Partial`\\<[HotkeyOptions](/options)\\>'
const expected = 'Partial<HotkeyOptions>
'