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diff --git a/raku/phone-number/README.md b/raku/phone-number/README.md new file mode 100644 index 0000000..ee01f5a --- /dev/null +++ b/raku/phone-number/README.md @@ -0,0 +1,52 @@ +# Phone Number + +Clean up user-entered phone numbers so that they can be sent SMS messages. + +The **North American Numbering Plan (NANP)** is a telephone numbering system used by many countries in North America like the United States, Canada or Bermuda. All NANP-countries share the same international country code: `1`. + +NANP numbers are ten-digit numbers consisting of a three-digit Numbering Plan Area code, commonly known as *area code*, followed by a seven-digit local number. The first three digits of the local number represent the *exchange code*, followed by the unique four-digit number which is the *subscriber number*. + +The format is usually represented as + +```text +(NXX)-NXX-XXXX +``` + +where `N` is any digit from 2 through 9 and `X` is any digit from 0 through 9. + +Your task is to clean up differently formatted telephone numbers by removing punctuation and the country code (1) if present. + +For example, the inputs +- `+1 (613)-995-0253` +- `613-995-0253` +- `1 613 995 0253` +- `613.995.0253` + +should all produce the output + +`6139950253` + +**Note:** As this exercise only deals with telephone numbers used in NANP-countries, only 1 is considered a valid country code. + +## Resources + +Remember to check out the Raku [documentation](https://docs.raku.org/) and +[resources](https://raku.org/resources/) pages for information, tips, and +examples if you get stuck. + +## Running the tests + +There is a test suite and module included with the exercise. +The test suite (a file with the extension `.rakutest`) will attempt to run routines +from the module (a file with the extension `.rakumod`). +Add/modify routines in the module so that the tests will pass! You can view the +test data by executing the command `raku --doc *.rakutest` (\* being the name of the +test suite), and run the test suite for the exercise by executing the command +`prove6 .` in the exercise directory. + +## Source + +Event Manager by JumpstartLab [http://tutorials.jumpstartlab.com/projects/eventmanager.html](http://tutorials.jumpstartlab.com/projects/eventmanager.html) + +## Submitting Incomplete Solutions +It's possible to submit an incomplete solution so you can see how others have completed the exercise. |