This commit is contained in:
Danil Negrienko 2024-07-06 13:42:59 -04:00
parent 0c3373b87e
commit 379e523c04
10 changed files with 271 additions and 0 deletions

View File

@ -0,0 +1,29 @@
{
"authors": [
"jimmbraddock"
],
"contributors": [
"angelikatyborska",
"awochna",
"Cohen-Carlisle",
"devonestes",
"lpil",
"neenjaw",
"parkerl",
"sotojuan"
],
"files": {
"solution": [
"lib/isogram.ex"
],
"test": [
"test/isogram_test.exs"
],
"example": [
".meta/example.ex"
]
},
"blurb": "Determine if a word or phrase is an isogram.",
"source": "Wikipedia",
"source_url": "https://en.wikipedia.org/wiki/Isogram"
}

View File

@ -0,0 +1 @@
{"track":"elixir","exercise":"isogram","id":"97e0306c1cf5487e94c9f5a8a42aab63","url":"https://exercism.org/tracks/elixir/exercises/isogram","handle":"negrienko","is_requester":true,"auto_approve":false}

View File

@ -0,0 +1,4 @@
# Used by "mix format"
[
inputs: ["{mix,.formatter}.exs", "{config,lib,test}/**/*.{ex,exs}"]
]

24
elixir/isogram/.gitignore vendored Normal file
View File

@ -0,0 +1,24 @@
# The directory Mix will write compiled artifacts to.
/_build/
# If you run "mix test --cover", coverage assets end up here.
/cover/
# The directory Mix downloads your dependencies sources to.
/deps/
# Where third-party dependencies like ExDoc output generated docs.
/doc/
# Ignore .fetch files in case you like to edit your project deps locally.
/.fetch
# If the VM crashes, it generates a dump, let's ignore it too.
erl_crash.dump
# Also ignore archive artifacts (built via "mix archive.build").
*.ez
# Ignore package tarball (built via "mix hex.build").
isogram-*.tar

75
elixir/isogram/HELP.md Normal file
View File

@ -0,0 +1,75 @@
# Help
## Running the tests
From the terminal, change to the base directory of the exercise then execute the tests with:
```bash
$ mix test
```
This will execute the test file found in the `test` subfolder -- a file ending in `_test.exs`
Documentation:
* [`mix test` - Elixir's test execution tool](https://hexdocs.pm/mix/Mix.Tasks.Test.html)
* [`ExUnit` - Elixir's unit test library](https://hexdocs.pm/ex_unit/ExUnit.html)
## Pending tests
In test suites of practice exercises, all but the first test have been tagged to be skipped.
Once you get a test passing, you can unskip the next one by commenting out the relevant `@tag :pending` with a `#` symbol.
For example:
```elixir
# @tag :pending
test "shouting" do
assert Bob.hey("WATCH OUT!") == "Whoa, chill out!"
end
```
If you wish to run all tests at once, you can include all skipped test by using the `--include` flag on the `mix test` command:
```bash
$ mix test --include pending
```
Or, you can enable all the tests by commenting out the `ExUnit.configure` line in the file `test/test_helper.exs`.
```elixir
# ExUnit.configure(exclude: :pending, trace: true)
```
## Useful `mix test` options
* `test/<FILE>.exs:LINENUM` - runs only a single test, the test from `<FILE>.exs` whose definition is on line `LINENUM`
* `--failed` - runs only tests that failed the last time they ran
* `--max-failures` - the suite stops evaluating tests when this number of test failures
is reached
* `--seed 0` - disables randomization so the tests in a single file will always be ran
in the same order they were defined in
## Submitting your solution
You can submit your solution using the `exercism submit lib/isogram.ex` command.
This command will upload your solution to the Exercism website and print the solution page's URL.
It's possible to submit an incomplete solution which allows you to:
- See how others have completed the exercise
- Request help from a mentor
## Need to get help?
If you'd like help solving the exercise, check the following pages:
- The [Elixir track's documentation](https://exercism.org/docs/tracks/elixir)
- The [Elixir track's programming category on the forum](https://forum.exercism.org/c/programming/elixir)
- [Exercism's programming category on the forum](https://forum.exercism.org/c/programming/5)
- The [Frequently Asked Questions](https://exercism.org/docs/using/faqs)
Should those resources not suffice, you could submit your (incomplete) solution to request mentoring.
If you're stuck on something, it may help to look at some of the [available resources](https://exercism.org/docs/tracks/elixir/resources) out there where answers might be found.

40
elixir/isogram/README.md Normal file
View File

@ -0,0 +1,40 @@
# Isogram
Welcome to Isogram on Exercism's Elixir Track.
If you need help running the tests or submitting your code, check out `HELP.md`.
## Instructions
Determine if a word or phrase is an isogram.
An isogram (also known as a "non-pattern word") is a word or phrase without a repeating letter, however spaces and hyphens are allowed to appear multiple times.
Examples of isograms:
- lumberjacks
- background
- downstream
- six-year-old
The word _isograms_, however, is not an isogram, because the s repeats.
## Source
### Created by
- @jimmbraddock
### Contributed to by
- @angelikatyborska
- @awochna
- @Cohen-Carlisle
- @devonestes
- @lpil
- @neenjaw
- @parkerl
- @sotojuan
### Based on
Wikipedia - https://en.wikipedia.org/wiki/Isogram

View File

@ -0,0 +1,9 @@
defmodule Isogram do
@doc """
Determines if a word or sentence is an isogram
"""
@isogram ~r/(\w).*\1/i
@spec isogram?(String.t()) :: boolean
def isogram?(sentence), do: !Regex.match?(@isogram, String.downcase(sentence))
end

28
elixir/isogram/mix.exs Normal file
View File

@ -0,0 +1,28 @@
defmodule Isogram.MixProject do
use Mix.Project
def project do
[
app: :isogram,
version: "0.1.0",
# elixir: "~> 1.8",
start_permanent: Mix.env() == :prod,
deps: deps()
]
end
# Run "mix help compile.app" to learn about applications.
def application do
[
extra_applications: [:logger]
]
end
# Run "mix help deps" to learn about dependencies.
defp deps do
[
# {:dep_from_hexpm, "~> 0.3.0"},
# {:dep_from_git, git: "https://github.com/elixir-lang/my_dep.git", tag: "0.1.0"}
]
end
end

View File

@ -0,0 +1,59 @@
defmodule IsogramTest do
use ExUnit.Case
test "empty string" do
assert Isogram.isogram?("")
end
test "isogram with only lower case characters" do
assert Isogram.isogram?("isogram")
end
test "word with one duplicated character" do
refute Isogram.isogram?("eleven")
end
test "word with one duplicated character from the end of the alphabet" do
refute Isogram.isogram?("zzyzx")
end
test "longest reported english isogram" do
assert Isogram.isogram?("subdermatoglyphic")
end
test "word with duplicated character in mixed case" do
refute Isogram.isogram?("Alphabet")
end
test "word with duplicated character in mixed case, lowercase first" do
refute Isogram.isogram?("alphAbet")
end
test "hypothetical isogrammic word with hyphen" do
assert Isogram.isogram?("thumbscrew-japingly")
end
test "hypothetical word with duplicated character following hyphen" do
refute Isogram.isogram?("thumbscrew-jappingly")
end
test "isogram with duplicated hyphen" do
assert Isogram.isogram?("six-year-old")
end
test "made-up name that is an isogram" do
assert Isogram.isogram?("Emily Jung Schwartzkopf")
end
test "duplicated character in the middle" do
refute Isogram.isogram?("accentor")
end
test "same first and last characters" do
refute Isogram.isogram?("angola")
end
test "word with duplicated character and with two hyphens" do
refute Isogram.isogram?("up-to-date")
end
end

View File

@ -0,0 +1,2 @@
ExUnit.start()
ExUnit.configure(exclude: :pending, trace: true)