Function PARSE-NUMBER (string &key start end radix float-format)
Function PARSE-REAL-NUMBER (string &key start end radix float-format)
Function PARSE-POSITIVE-REAL-NUMBER (string &key start end radix float-format)
The source code is availabe from a repository at github.
You can download the repository as a zip file or you can get a
tar file of the version 1.3.
In addition parse-number is available via Quicklisp.
parse-number comes with an asdf file for compilation.
You can test the installation with asdf. This is an example output:
(asdf:test-system :parse-number) => .PARSE-NUMBER: 23 assertions passed, 0 failed. => T
An online documentation is availabe at parse-number API documentation.
parse-number does not handle thousands separators, so if you use this package, you might think about adding that.