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feat: add automatic code formatting and language detection to the snippet editor - #205
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SudiptaPaul-31 merged 2 commits intoOct 3, 2026
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…ppet editor - Detect pasted code language with weighted heuristics and confidence scoring; low-confidence, mixed, or unsupported pastes fall back to plaintext - Add an editor toolbar with language indicator, Format Code button, auto-format toggle, and accept/dismiss suggestion banner - Format with Prettier (JS/TS/HTML/CSS/JSON/Markdown), a conservative Python formatter, and whitespace-only normalization for other languages; plaintext and oversized snippets are never rewritten - Lock detection when editing an existing snippet or when the user manually picks a language; guard Radix Select against spurious empty change events - Add test suites for detection, formatting, the formatting hook, the toolbar, and form integration (5 suites, 75 tests)
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Summary
Closes #187
Implemented automatic code formatting and language detection support for the snippet editor.
What changed
Added intelligent pasted-code language detection using weighted heuristics and confidence scoring.
Added editor formatting workflow:
Added language-aware formatting:
Improved editor stability:
Files added/updated
lib/language-detection.tslib/format-code.tshooks/useSnippetFormatting.tscomponents/SnippetEditorToolbar.tsxcomponents/ui/switch.tsxcomponents/SnippetForm.tsxlib/languages.tsTesting
Added comprehensive test coverage:
lib/language-detection.test.tslib/format-code.test.tshooks/useSnippetFormatting.test.tscomponents/__tests__/SnippetEditorToolbar.test.tsxcomponents/__tests__/SnippetForm.test.tsxResults:
tsc --noEmitpasses with zero errors in all modified files.The remaining failing tests are existing failures from
mainand unrelated to this change (reputation, wallet, signature, share/blockchain services).