add tab-* utilities

[RobinMalfait]

This PR adds new tab-* utilities.

The tab-* utilities set the tab-size property. They support positive integer bare values, arbitrary values, and theme values coming from --tab-size-*:

Class	CSS
tab-2	tab-size: 2;
tab-[12px]	tab-size: 12px;
tab-github	tab-size: var(--tab-size-github);

@theme {
  --tab-size-github: 8;
}

tab-github:

.tab-github {
  tab-size: var(--tab-size-github);
}

This doesn't ship with any --tab-size-* theme keys out of the box.

This also adds tab-size to the property order near the other text layout properties.

Test plan

1. Added new tab-* utility tests
2. Updated the intellisense snapshot
3. Other existing tests still pass

[greptile-apps]

Confidence Score: 5/5

Safe to merge — the change adds a new, self-contained utility with no modifications to existing logic.

The implementation follows the exact same pattern used by every comparable functional utility in the file (line-clamp, columns, etc.), the invalid-value cases are all explicitly tested and return empty output, and isPositiveInteger already accepts 0 (per its num >= 0 check) so edge cases are covered. The property-order insertion and intellisense snapshot are both consistent with the rest of the codebase.

No files require special attention.

_{Reviews (2): Last reviewed commit: "add `tab-*` utilities" | Re-trigger Greptile}

[coderabbitai]

No actionable comments were generated in the recent review. 🎉

ℹ️ Recent review info

⚙️ Run configuration

Configuration used: Repository UI

Review profile: CHILL

Plan: Pro

Run ID: d6cfc527-fc3e-4dc8-925e-6ffd7fa0b97f

📥 Commits

Reviewing files that changed from the base of the PR and between 11a266d and 3b559e6.

⛔ Files ignored due to path filters (1)

• packages/tailwindcss/src/__snapshots__/intellisense.test.ts.snap is excluded by !**/*.snap

📒 Files selected for processing (3)

• packages/tailwindcss/src/property-order.ts
• packages/tailwindcss/src/utilities.test.ts
• packages/tailwindcss/src/utilities.ts

✅ Files skipped from review due to trivial changes (1)

• packages/tailwindcss/src/property-order.ts

🚧 Files skipped from review as they are similar to previous changes (2)

• packages/tailwindcss/src/utilities.test.ts
• packages/tailwindcss/src/utilities.ts

---

Walkthrough

This pull request adds support for a new tab-* functional utility class in Tailwind CSS. The implementation spans three coordinated changes: the tab-size CSS property is registered in the property ordering configuration, the tab-* functional utility is implemented to map theme values and bare positive integers to the tab-size property, and comprehensive tests verify the output for both theme-backed and bracketed values as well as command-line execution.

🚥 Pre-merge checks | ✅ 4

✅ Passed checks (4 passed)

Check name	Status	Explanation
Title check	✅ Passed	The title clearly and concisely summarizes the main change: adding new tab-* utilities to the Tailwind CSS package.
Description check	✅ Passed	The description provides comprehensive details about the new tab-* utilities, their functionality, usage examples, and test plan, all directly related to the changeset.
Linked Issues check	✅ Passed	Check skipped because no linked issues were found for this pull request.
Out of Scope Changes check	✅ Passed	Check skipped because no linked issues were found for this pull request.

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---

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[coderabbitai]

Actionable comments posted: 1

🤖 Prompt for all review comments with AI agents

Verify each finding against current code. Fix only still-valid issues, skip the
rest with a brief reason, keep changes minimal, and validate.

Inline comments:
In `@packages/tailwindcss/src/utilities.test.ts`:
- Around line 11850-11858: The invalid-candidate list passed to the test helper
run in utilities.test.ts is missing an explicit case for the zero value; add
'tab-0' to the array argument of the run([...]) call (the same array that
currently contains 'tab', '-tab-2', 'tab-2.5', 'tab-1/2', 'tab-unknown',
'tab-2/foo', 'tab-[12px]/foo') so the tests assert that a bare zero is invalid
and lock in the “positive integer bare value” rule.

🪄 Autofix (Beta)

Fix all unresolved CodeRabbit comments on this PR:

• Push a commit to this branch (recommended)
• Create a new PR with the fixes

---

ℹ️ Review info

⚙️ Run configuration

Configuration used: Repository UI

Review profile: CHILL

Plan: Pro

Run ID: aae9d4ce-8ab9-46ff-a1a9-56693791eb61

📥 Commits

Reviewing files that changed from the base of the PR and between 754e751 and 11a266d.

⛔ Files ignored due to path filters (1)

• packages/tailwindcss/src/__snapshots__/intellisense.test.ts.snap is excluded by !**/*.snap

📒 Files selected for processing (3)

• packages/tailwindcss/src/property-order.ts
• packages/tailwindcss/src/utilities.test.ts
• packages/tailwindcss/src/utilities.ts

[coderabbitai]

⚠️ Potential issue | 🟡 Minor | ⚡ Quick win

Add an explicit invalid assertion for tab-0.

On Line 11850 onward, the invalid-candidate list is missing tab-0, which helps lock in the “positive integer bare value” rule and prevent regressions.

Suggested test delta

   expect(
     await run([
       'tab',
+      'tab-0',
       '-tab-2',
       'tab-2.5',
       'tab-1/2',
       'tab-unknown',
       'tab-2/foo',
       'tab-[12px]/foo',
     ]),
   ).toEqual('')

📝 Committable suggestion

‼️ IMPORTANT
Carefully review the code before committing. Ensure that it accurately replaces the highlighted code, contains no missing lines, and has no issues with indentation. Thoroughly test & benchmark the code to ensure it meets the requirements.

Suggested change

	await run([
	'tab',
	'-tab-2',
	'tab-2.5',
	'tab-1/2',
	'tab-unknown',
	'tab-2/foo',
	'tab-[12px]/foo',
	]),
	await run([
	'tab',
	'tab-0',
	'-tab-2',
	'tab-2.5',
	'tab-1/2',
	'tab-unknown',
	'tab-2/foo',
	'tab-[12px]/foo',
	]),

🤖 Prompt for AI Agents

Verify each finding against current code. Fix only still-valid issues, skip the
rest with a brief reason, keep changes minimal, and validate.

In `@packages/tailwindcss/src/utilities.test.ts` around lines 11850 - 11858, The
invalid-candidate list passed to the test helper run in utilities.test.ts is
missing an explicit case for the zero value; add 'tab-0' to the array argument
of the run([...]) call (the same array that currently contains 'tab', '-tab-2',
'tab-2.5', 'tab-1/2', 'tab-unknown', 'tab-2/foo', 'tab-[12px]/foo') so the tests
assert that a bare zero is invalid and lock in the “positive integer bare value”
rule.