Function parse_amount_with_currency 

pub fn parse_amount_with_currency(
    input: &str,
    currency: &str,
) -> Result<f64, ParseError>

Parse amount with currency-specific decimal validation

This combines amount parsing with currency-specific decimal precision validation. Use this for amount fields where the currency is known (Field 32A, 32B, etc.)

Arguments

• input - Amount string to parse
• currency - ISO 4217 currency code for decimal validation

Returns

Parsed amount as f64

Errors

Returns error if:

• Amount format is invalid
• Decimal precision exceeds currency limit (C03)