Float package:foundation

Single-precision floating point numbers. It is desirable that this type be at least equal in range and precision to the IEEE single-precision type.

IEEE754 Floating Point

Read an Floating like number of the form:

• - numbers [ . numbers ] [ ( e | E ) [ - ] number ]

Call a function with:

• A boolean representing if the number is negative
• The digits part represented as a single natural number (123.456 is represented as 123456)
• The number of digits in the fractional part (e.g. 123.456 => 3)
• The exponent if any

The code is structured as a simple state machine that:

• Optionally Consume a - sign
• Consume number for the integral part
• Optionally
• Consume .
• Consume remaining digits if not already end of string
• Optionally Consume a e or E follow by an optional - and a number