Julio Biason
3 years ago
8 changed files with 207 additions and 0 deletions
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|
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{ |
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"blurb": "Create a sentence of the form \"One for X, one for me.\"", |
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"authors": [ |
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"sjwarner-bp" |
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], |
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"contributors": [ |
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"ErikSchierboom", |
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"iHiD", |
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"juhlig", |
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"NobbZ" |
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], |
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"files": { |
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"solution": [ |
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"src/two_fer.erl" |
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], |
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"test": [ |
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"test/two_fer_tests.erl" |
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], |
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"example": [ |
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".meta/example.erl" |
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] |
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}, |
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"source_url": "https://github.com/exercism/problem-specifications/issues/757" |
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} |
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{"track":"erlang","exercise":"two-fer","id":"e8deb62d43c54acabb5ef043ccb92ca5","url":"https://exercism.org/tracks/erlang/exercises/two-fer","handle":"JBiason","is_requester":true,"auto_approve":false} |
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# Help |
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## Running the tests |
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You can run the tests by running the following command from the exercise directory. |
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```bash |
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$ rebar3 eunit |
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``` |
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## Submitting your solution |
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You can submit your solution using the `exercism submit src/two_fer.erl` command. |
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This command will upload your solution to the Exercism website and print the solution page's URL. |
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It's possible to submit an incomplete solution which allows you to: |
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- See how others have completed the exercise |
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- Request help from a mentor |
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|
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## Need to get help? |
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If you'd like help solving the exercise, check the following pages: |
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- The [Erlang track's documentation](https://exercism.org/docs/tracks/erlang) |
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- [Exercism's support channel on gitter](https://gitter.im/exercism/support) |
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- The [Frequently Asked Questions](https://exercism.org/docs/using/faqs) |
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|
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Should those resources not suffice, you could submit your (incomplete) solution to request mentoring. |
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|
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To get help if you're having trouble, you can use one of the following resources: |
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- [Exercism related BEAM support channel on gitter](https://gitter.im/exercism/xerlang) |
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- [Erlang Documentation](http://www.erlang.org/doc.html) |
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- [Learn You Some Erlang for Great Good](http://learnyousomeerlang.com) |
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- [StackOverflow](http://stackoverflow.com/) |
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# Two Fer |
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Welcome to Two Fer on Exercism's Erlang Track. |
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If you need help running the tests or submitting your code, check out `HELP.md`. |
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## Instructions |
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`Two-fer` or `2-fer` is short for two for one. One for you and one for me. |
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Given a name, return a string with the message: |
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```text |
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One for name, one for me. |
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``` |
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Where "name" is the given name. |
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However, if the name is missing, return the string: |
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```text |
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One for you, one for me. |
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``` |
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Here are some examples: |
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|Name |String to return |
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|:-------|:------------------ |
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|Alice |One for Alice, one for me. |
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|Bob |One for Bob, one for me. |
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| |One for you, one for me. |
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|Zaphod |One for Zaphod, one for me. |
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|
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## Source |
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### Created by |
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- @sjwarner-bp |
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### Contributed to by |
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- @ErikSchierboom |
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- @iHiD |
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- @juhlig |
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- @NobbZ |
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### Based on |
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https://github.com/exercism/problem-specifications/issues/757 |
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%% Erlang compiler options |
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{erl_opts, [debug_info, warnings_as_errors]}. |
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{deps, [{erl_exercism, "0.1.2"}]}. |
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{dialyzer, [ |
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{warnings, [underspecs, no_return]}, |
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{get_warnings, true}, |
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{plt_apps, top_level_deps}, % top_level_deps | all_deps |
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{plt_extra_apps, []}, |
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{plt_location, local}, % local | "/my/file/name" |
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{plt_prefix, "rebar3"}, |
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{base_plt_apps, [stdlib, kernel, crypto]}, |
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{base_plt_location, global}, % global | "/my/file/name" |
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{base_plt_prefix, "rebar3"} |
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]}. |
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|
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%% eunit:test(Tests) |
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{eunit_tests, []}. |
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%% Options for eunit:test(Tests, Opts) |
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{eunit_opts, [verbose]}. |
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%% == xref == |
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{xref_warnings, true}. |
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%% xref checks to run |
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{xref_checks, [undefined_function_calls, undefined_functions, |
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locals_not_used, exports_not_used, |
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deprecated_function_calls, deprecated_functions]}. |
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{application, two_fer, |
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[{description, "exercism.io - two-fer"}, |
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{vsn, "0.0.1"}, |
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{modules, []}, |
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{registered, []}, |
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{applications, [kernel, |
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stdlib]}, |
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{env, []} |
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]}. |
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-module(two_fer). |
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-import(string, [concat/2]). |
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-export([two_fer/0, two_fer/1]). |
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two_fer() -> |
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"One for you, one for me.". |
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two_fer(Name) -> |
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concat( |
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concat("One for ", Name), |
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", one for me." |
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). |
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%% Generated with 'testgen v0.2.0' |
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%% Revision 1 of the exercises generator was used |
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%% https://github.com/exercism/problem-specifications/raw/42dd0cea20498fd544b152c4e2c0a419bb7e266a/exercises/two-fer/canonical-data.json |
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%% This file is automatically generated from the exercises canonical data. |
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-module(two_fer_tests). |
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-include_lib("erl_exercism/include/exercism.hrl"). |
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-include_lib("eunit/include/eunit.hrl"). |
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-define(assertStringEqual(Expect, Expr), |
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begin ((fun () -> |
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__X = (Expect), |
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__Y = (Expr), |
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case string:equal(__X, __Y) of |
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true -> ok; |
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false -> erlang:error({assertStringEqual, |
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[{module, ?MODULE}, |
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{line, ?LINE}, |
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{expression, (??Expr)}, |
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{expected, unicode:characters_to_list(__X)}, |
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{value, unicode:characters_to_list(__Y)}]}) |
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end |
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end)()) |
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end). |
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-define(_assertStringEqual(Expect, Expr), ?_test(?assertStringEqual(Expect, Expr))). |
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'1_no_name_given_test_'() -> |
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{"no name given", |
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?_assertStringEqual("One for you, one for me.", |
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two_fer:two_fer())}. |
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'2_a_name_given_test_'() -> |
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{"a name given", |
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?_assertStringEqual("One for Alice, one for me.", |
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two_fer:two_fer("Alice"))}. |
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'3_another_name_given_test_'() -> |
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{"another name given", |
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?_assertStringEqual("One for Bob, one for me.", |
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two_fer:two_fer("Bob"))}. |
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