Crate scolapasta_int_parse

Parse a given byte string and optional radix into an i64.

parse wraps i64::from_str_radix by normalizing the input byte string:

• Assert the byte string is ASCII and does not contain NUL bytes.
• Parse the radix to ensure it is in range and valid for the given input byte string.
• Trim leading whitespace.
• Accept a single, optional + or - sign byte.
• Parse a literal radix out of the string from one of 0b, 0B, 0o, 0O, 0d, 0D, 0x, or 0X. If the given radix is Some(_), the radix must match the embedded radix literal. A 0 prefix of arbitrary length is interpreted as an octal literal.
• Remove (“squeeze”) leading zeros.
• Collect ASCII alphanumeric bytes and filter out underscores.

The functions and types in this crate can be used to implement Kernel#Integer in Ruby.

Structs

ArgumentError

Error that indicates the byte string input to parse was invalid.

InvalidRadixError

Error that indicates the radix input to parse was invalid.

Radix

A checked container for the radix to use when converting a string to an integer.

Enums

Error

Sum type for all possible errors from this crate.

InvalidRadixExceptionKind

An enum describing which type of Ruby Exception an InvalidRadixError should be mapped to.

Functions

parse

Parse a given byte string and optional Radix into an i64.