Keep the currency of an amount written as money text

[jimhoyd]

What this changes

Before: an event's amount: €12 was totalled as 12 USD, and amount: 99.50 EUR was left out of the ledger altogether. Only a bare number with a separate currency: field worked. Record prices handled money text, but $1,899 with priceCurrency: AUD was read as USD.

After: event amounts and record prices follow one rule, the new moneyIn in src/core/util.ts:

• A code written with the number (99.50 EUR) wins.
• A sign gives way to the document's currency or priceCurrency, so $20 with currency: CAD is 20 CAD.
• With no currency field, € is EUR, £ GBP, ¥ JPY and $ USD.
• A bare number takes the currency field, else USD.

Totals stay per currency and are never converted, as before.

Why

Jimmy asked whether GitRoll handles different currencies. Checking showed that money text in amount lost its currency.

How it was tested

• make check passes (typecheck, tests, build, @gitroll/core build, audit): 415 pass, 0 fail, 1 skipped (the CI-only browser presence check), 0 vulnerabilities.
• Tests added or updated for every behavior change: a new test in test/ledger.test.ts covers €, £, ¥, a trailing code, a code against a currency field, $ with currency: CAD, bare numbers, priceCurrency: AUD, and a ledger total of two EUR amounts.

Anything a reviewer should look at closely

Format of files in a Roll: SPEC.md's event field table now describes money text in amount and how currency interacts with it. GitRoll itself still writes amount as a number plus currency, so existing Rolls read as before, except for hand-written money text, which was misread until now.

🤖 Generated with Claude Code

https://claude.ai/code/session_01XCVQuXXVJBEB4WExAcfQfD

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