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feat(csv): support Markdown, ChatGPT, and psql/MySQL box table paste (AC-14) - #231
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…(AC-14) - Add detectMarkdownOrCliTable in app/src/lib/markdownTable.ts to detect and normalize GitHub/ChatGPT Markdown pipe tables and psql/MySQL ASCII box tables into RFC 4180 CSV. - Auto-normalize detected Markdown/CLI tables inside parseCsvTable and convertText/csvToJson (when separator is auto) so pasted tables immediately render clean columns and rows in CsvTable and JSON output without divider rows or empty outer pipe columns. - Surface a contextual Clean Markdown table / Clean CLI table pill (data-testid="csv-clean-markdown-pill") in InputPane to rewrite raw input into canonical CSV in place while recording an undo snapshot. - Add bundled changelog entry #21 and unit/component test coverage. Co-authored-by: David Boskovic <david@obvious.ai>
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Why
Developers and analysts frequently copy Markdown pipe tables out of GitHub PRs, docs, or ChatGPT responses (
| name | score |\n| --- | ---: |\n| Ada | 42 |) or copy ASCII box tables straight frompsqland MySQL terminals (id | city\n----+------\n 1 | Rome\n(1 row)). Pasting either format into CSV -> JSON previously treated the| --- | --- |or----+----separator rule as a data row, produced empty leading and trailing columns from outer border pipes, and included(N rows)CLI footers as malformed rows.What
app/src/lib/markdownTable.ts):detectMarkdownOrCliTable(input: string): DetectedTablePaste | nullsupporting both GitHub/ChatGPT Markdown pipe tables (header row +| --- | :---: |alignment separator + data rows, unescaping\|->|, trimming cell padding, and RFC 4180-quoting cells) andpsql/MySQL ASCII box tables (+---+---+framed box tables andcol1 | col2+----+----border tables with optional(N rows)footers).nullfor standard CSV, TSV, JSON, or plain pipe-separated CSV that has no Markdown or CLI separator rule line.app/src/lib/csvTable.ts,app/src/lib/convert.ts,app/src/components/CsvTable.tsx):separatoris"auto"(or default),parseCsvTableandconvertText(csv2json) automatically normalize detected Markdown or CLI box tables so the input grid and JSON output render clean columns and rows immediately on paste.app/src/components/InputPane.tsx):data-testid="csv-markdown-table-bar"anddata-testid="csv-clean-markdown-pill"(Clean Markdown table (N rows)orClean CLI table (N rows)) above the CSV table when a Markdown or CLI box table is pasted. Clicking rewrites rawinputinto canonical comma-separated CSV and pushes the original Markdown/CLI table onto the undo stack (Mod+Z).#19inapp/src/changelog/entries.ts.app/src/lib/markdownTable.test.ts,app/src/lib/__tests__/convert.test.ts, andapp/src/App.test.tsx.How to Review
app/src/lib/markdownTable.tsandapp/src/lib/markdownTable.test.ts— pure detection and normalization logic for Markdown pipe tables andpsql/MySQL ASCII box tables.app/src/lib/csvTable.tsandapp/src/lib/convert.ts— auto-normalization hook when separator is"auto".app/src/components/InputPane.tsxandapp/src/App.test.tsx— contextualClean Markdown table/Clean CLI tablepill and undo integration.Verification
cd app && npm run lint && npx tsc -b --noEmit && npm test && npm run build(35 test suites, 579 tests passing)bash .github/scripts/verify-seo.sh(passed, 45,103 bytes prerendered HTML)Human author: David Boskovic (david@obvious.ai)
🔗 Obvious Project · 🧵 Obvious Thread · 🔀 Obvious PR Artifact
Test Evidence
AC-14: Paste GitHub/ChatGPT Markdown and psql/MySQL CLI box tables with auto-normalization and one-click Clean table pill
