Is it a currency code + symbol + amount?

Tests whether each element is an ISO 4217 code immediately followed by a currency symbol and a numeric amount with at most two decimals, e.g. "USD$12.30", "EUR€299.10", "JPY¥22", "GBP£1222". The prefix must be a real ISO 4217 code; the symbol must be one of $, €, ¥, £.

Usage

is_currency_code_symbol(x)

Arguments

x

A character vector of candidate values.

Value

A logical vector the same length as x: TRUE where both the syntax matches and the prefix is a valid ISO 4217 code, FALSE otherwise, NA where x is NA.

Details

The code and symbol are not cross-checked for consistency (e.g. "USD€10" passes), because market data frequently pairs an offshore symbol with a settlement code.

See also

is_currency_code(), is_currency_symbol(), guess_data_type()

Other currency detectors: is_currency_amount(), is_currency_code(), is_currency_symbol()

Examples

is_currency_code_symbol(c("USD$12.30", "ZZZ$1", "USD 10", NA))
#> [1]  TRUE FALSE FALSE    NA
#> TRUE FALSE FALSE NA