diff --git a/config.json b/config.json index ea86b75..664074d 100644 --- a/config.json +++ b/config.json @@ -330,6 +330,14 @@ "prerequisites": [], "difficulty": 8 }, + { + "slug": "pig-latin", + "name": "Pig Latin", + "uuid": "2c45ef99-047e-4d83-b11d-256acc20a175", + "practices": [], + "prerequisites": [], + "difficulty": 8 + }, { "slug": "rest-api", "name": "REST API", diff --git a/exercises/practice/pig-latin/.docs/instructions.md b/exercises/practice/pig-latin/.docs/instructions.md new file mode 100644 index 0000000..a9645ac --- /dev/null +++ b/exercises/practice/pig-latin/.docs/instructions.md @@ -0,0 +1,46 @@ +# Instructions + +Your task is to translate text from English to Pig Latin. +The translation is defined using four rules, which look at the pattern of vowels and consonants at the beginning of a word. +These rules look at each word's use of vowels and consonants: + +- vowels: the letters `a`, `e`, `i`, `o`, and `u` +- consonants: the other 21 letters of the English alphabet + +## Rule 1 + +If a word begins with a vowel, or starts with `"xr"` or `"yt"`, add an `"ay"` sound to the end of the word. + +For example: + +- `"apple"` -> `"appleay"` (starts with vowel) +- `"xray"` -> `"xrayay"` (starts with `"xr"`) +- `"yttria"` -> `"yttriaay"` (starts with `"yt"`) + +## Rule 2 + +If a word begins with one or more consonants, first move those consonants to the end of the word and then add an `"ay"` sound to the end of the word. + +For example: + +- `"pig"` -> `"igp"` -> `"igpay"` (starts with single consonant) +- `"chair"` -> `"airch"` -> `"airchay"` (starts with multiple consonants) +- `"thrush"` -> `"ushthr"` -> `"ushthray"` (starts with multiple consonants) + +## Rule 3 + +If a word starts with zero or more consonants followed by `"qu"`, first move those consonants (if any) and the `"qu"` part to the end of the word, and then add an `"ay"` sound to the end of the word. + +For example: + +- `"quick"` -> `"ickqu"` -> `"ickquay"` (starts with `"qu"`, no preceding consonants) +- `"square"` -> `"aresqu"` -> `"aresquay"` (starts with one consonant followed by `"qu`") + +## Rule 4 + +If a word starts with one or more consonants followed by `"y"`, first move the consonants preceding the `"y"`to the end of the word, and then add an `"ay"` sound to the end of the word. + +Some examples: + +- `"my"` -> `"ym"` -> `"ymay"` (starts with single consonant followed by `"y"`) +- `"rhythm"` -> `"ythmrh"` -> `"ythmrhay"` (starts with multiple consonants followed by `"y"`) diff --git a/exercises/practice/pig-latin/.docs/introduction.md b/exercises/practice/pig-latin/.docs/introduction.md new file mode 100644 index 0000000..04baa47 --- /dev/null +++ b/exercises/practice/pig-latin/.docs/introduction.md @@ -0,0 +1,8 @@ +# Introduction + +Your parents have challenged you and your sibling to a game of two-on-two basketball. +Confident they'll win, they let you score the first couple of points, but then start taking over the game. +Needing a little boost, you start speaking in [Pig Latin][pig-latin], which is a made-up children's language that's difficult for non-children to understand. +This will give you the edge to prevail over your parents! + +[pig-latin]: https://en.wikipedia.org/wiki/Pig_latin diff --git a/exercises/practice/pig-latin/.meta/config.json b/exercises/practice/pig-latin/.meta/config.json new file mode 100644 index 0000000..9735645 --- /dev/null +++ b/exercises/practice/pig-latin/.meta/config.json @@ -0,0 +1,19 @@ +{ + "authors": [ + "jimmytty" + ], + "files": { + "solution": [ + "pig-latin.sql" + ], + "test": [ + "pig-latin_test.sql" + ], + "example": [ + ".meta/example.sql" + ] + }, + "blurb": "Implement a program that translates from English to Pig Latin.", + "source": "The Pig Latin exercise at Test First Teaching by Ultrasaurus", + "source_url": "https://github.com/ultrasaurus/test-first-teaching/blob/master/learn_ruby/pig_latin/" +} diff --git a/exercises/practice/pig-latin/.meta/example.sql b/exercises/practice/pig-latin/.meta/example.sql new file mode 100644 index 0000000..0aadad9 --- /dev/null +++ b/exercises/practice/pig-latin/.meta/example.sql @@ -0,0 +1,51 @@ +UPDATE "pig-latin" + SET result = ( + WITH words (word) AS ( + SELECT j.value + FROM JSON_EACH(PRINTF('["%s"]', REPLACE(phrase, ' ', '","'))) j + ) + SELECT GROUP_CONCAT(word, ' ') + FROM ( + SELECT ( + WITH remove_vowels (word, no_vowel) AS ( + SELECT + word, + REPLACE(REPLACE(REPLACE(REPLACE(REPLACE( + word, + 'a', CHAR(10)), + 'e', CHAR(10)), + 'i', CHAR(10)), + 'o', CHAR(10)), + 'u', CHAR(10) + ) + FROM "pig-latin" + ) + SELECT CASE + WHEN REGEXP('^([aeiou]|xr|yt)', word) THEN word || 'ay' + WHEN REGEXP('^[bcdfghjklmnpqrstvwxyz]*qu', word) + THEN PRINTF( + '%s%say', + SUBSTR(word, INSTR(word, 'qu') + 2), + SUBSTR(word, 1, INSTR(word, 'qu') + 1) + ) + WHEN REGEXP('^[bcdfghjklmnpqrstvwxz]+y', word) + THEN + PRINTF( + '%s%say', + SUBSTR(word, INSTR(word, 'y')), + SUBSTR(word, 1 , INSTR(word, 'y') - 1) + ) + WHEN GLOB('[bcdfghjklmnpqrstvwxyz]*', word) + THEN + PRINTF( + '%s%say', + SUBSTR(word, INSTR(no_vowel, CHAR(10))), + SUBSTR(word, 1, INSTR(no_vowel, CHAR(10)) - 1) + ) + END + FROM remove_vowels + ) AS word + FROM words + ) + ) +; diff --git a/exercises/practice/pig-latin/.meta/tests.toml b/exercises/practice/pig-latin/.meta/tests.toml new file mode 100644 index 0000000..d524305 --- /dev/null +++ b/exercises/practice/pig-latin/.meta/tests.toml @@ -0,0 +1,79 @@ +# This is an auto-generated file. +# +# Regenerating this file via `configlet sync` will: +# - Recreate every `description` key/value pair +# - Recreate every `reimplements` key/value pair, where they exist in problem-specifications +# - Remove any `include = true` key/value pair (an omitted `include` key implies inclusion) +# - Preserve any other key/value pair +# +# As user-added comments (using the # character) will be removed when this file +# is regenerated, comments can be added via a `comment` key. + +[11567f84-e8c6-4918-aedb-435f0b73db57] +description = "ay is added to words that start with vowels -> word beginning with a" + +[f623f581-bc59-4f45-9032-90c3ca9d2d90] +description = "ay is added to words that start with vowels -> word beginning with e" + +[7dcb08b3-23a6-4e8a-b9aa-d4e859450d58] +description = "ay is added to words that start with vowels -> word beginning with i" + +[0e5c3bff-266d-41c8-909f-364e4d16e09c] +description = "ay is added to words that start with vowels -> word beginning with o" + +[614ba363-ca3c-4e96-ab09-c7320799723c] +description = "ay is added to words that start with vowels -> word beginning with u" + +[bf2538c6-69eb-4fa7-a494-5a3fec911326] +description = "ay is added to words that start with vowels -> word beginning with a vowel and followed by a qu" + +[e5be8a01-2d8a-45eb-abb4-3fcc9582a303] +description = "first letter and ay are moved to the end of words that start with consonants -> word beginning with p" + +[d36d1e13-a7ed-464d-a282-8820cb2261ce] +description = "first letter and ay are moved to the end of words that start with consonants -> word beginning with k" + +[d838b56f-0a89-4c90-b326-f16ff4e1dddc] +description = "first letter and ay are moved to the end of words that start with consonants -> word beginning with x" + +[bce94a7a-a94e-4e2b-80f4-b2bb02e40f71] +description = "first letter and ay are moved to the end of words that start with consonants -> word beginning with q without a following u" + +[e59dbbe8-ccee-4619-a8e9-ce017489bfc0] +description = "first letter and ay are moved to the end of words that start with consonants -> word beginning with consonant and vowel containing qu" + +[c01e049a-e3e2-451c-bf8e-e2abb7e438b8] +description = "some letter clusters are treated like a single consonant -> word beginning with ch" + +[9ba1669e-c43f-4b93-837a-cfc731fd1425] +description = "some letter clusters are treated like a single consonant -> word beginning with qu" + +[92e82277-d5e4-43d7-8dd3-3a3b316c41f7] +description = "some letter clusters are treated like a single consonant -> word beginning with qu and a preceding consonant" + +[79ae4248-3499-4d5b-af46-5cb05fa073ac] +description = "some letter clusters are treated like a single consonant -> word beginning with th" + +[e0b3ae65-f508-4de3-8999-19c2f8e243e1] +description = "some letter clusters are treated like a single consonant -> word beginning with thr" + +[20bc19f9-5a35-4341-9d69-1627d6ee6b43] +description = "some letter clusters are treated like a single consonant -> word beginning with sch" + +[54b796cb-613d-4509-8c82-8fbf8fc0af9e] +description = "some letter clusters are treated like a single vowel -> word beginning with yt" + +[8c37c5e1-872e-4630-ba6e-d20a959b67f6] +description = "some letter clusters are treated like a single vowel -> word beginning with xr" + +[a4a36d33-96f3-422c-a233-d4021460ff00] +description = "position of y in a word determines if it is a consonant or a vowel -> y is treated like a consonant at the beginning of a word" + +[adc90017-1a12-4100-b595-e346105042c7] +description = "position of y in a word determines if it is a consonant or a vowel -> y is treated like a vowel at the end of a consonant cluster" + +[29b4ca3d-efe5-4a95-9a54-8467f2e5e59a] +description = "position of y in a word determines if it is a consonant or a vowel -> y as second letter in two letter word" + +[44616581-5ce3-4a81-82d0-40c7ab13d2cf] +description = "phrases are translated -> a whole phrase" diff --git a/exercises/practice/pig-latin/create_fixture.sql b/exercises/practice/pig-latin/create_fixture.sql new file mode 100644 index 0000000..033a85b --- /dev/null +++ b/exercises/practice/pig-latin/create_fixture.sql @@ -0,0 +1,10 @@ +DROP TABLE IF EXISTS "pig-latin"; +CREATE TABLE "pig-latin" ( + phrase TEXT NOT NULL, + result TEXT +); + +.mode csv +.import ./data.csv "pig-latin" + +UPDATE "pig-latin" SET result = NULL; diff --git a/exercises/practice/pig-latin/create_test_table.sql b/exercises/practice/pig-latin/create_test_table.sql new file mode 100644 index 0000000..b8c1db9 --- /dev/null +++ b/exercises/practice/pig-latin/create_test_table.sql @@ -0,0 +1,41 @@ +DROP TABLE IF EXISTS tests; +CREATE TABLE IF NOT EXISTS tests ( + -- uuid and description are taken from the test.toml file + uuid TEXT PRIMARY KEY, + description TEXT NOT NULL, + -- The following section is needed by the online test-runner + status TEXT DEFAULT 'fail', + message TEXT, + output TEXT, + test_code TEXT, + task_id INTEGER DEFAULT NULL, + -- Here are columns for the actual tests + phrase TEXT NOT NULL, + expected TEXT NOT NULL +); + +INSERT INTO tests (uuid, description, phrase, expected) +VALUES + ('11567f84-e8c6-4918-aedb-435f0b73db57', 'word beginning with a', 'apple', 'appleay'), + ('f623f581-bc59-4f45-9032-90c3ca9d2d90', 'word beginning with e', 'ear', 'earay'), + ('7dcb08b3-23a6-4e8a-b9aa-d4e859450d58', 'word beginning with i', 'igloo', 'iglooay'), + ('0e5c3bff-266d-41c8-909f-364e4d16e09c', 'word beginning with o', 'object', 'objectay'), + ('614ba363-ca3c-4e96-ab09-c7320799723c', 'word beginning with u', 'under', 'underay'), + ('bf2538c6-69eb-4fa7-a494-5a3fec911326', 'word beginning with a vowel and followed by a qu', 'equal', 'equalay'), + ('e5be8a01-2d8a-45eb-abb4-3fcc9582a303', 'word beginning with p', 'pig', 'igpay'), + ('d36d1e13-a7ed-464d-a282-8820cb2261ce', 'word beginning with k', 'koala', 'oalakay'), + ('d838b56f-0a89-4c90-b326-f16ff4e1dddc', 'word beginning with x', 'xenon', 'enonxay'), + ('bce94a7a-a94e-4e2b-80f4-b2bb02e40f71', 'word beginning with q without a following u', 'qat', 'atqay'), + ('e59dbbe8-ccee-4619-a8e9-ce017489bfc0', 'word beginning with consonant and vowel containing qu', 'liquid', 'iquidlay'), + ('c01e049a-e3e2-451c-bf8e-e2abb7e438b8', 'word beginning with ch', 'chair', 'airchay'), + ('9ba1669e-c43f-4b93-837a-cfc731fd1425', 'word beginning with qu', 'queen', 'eenquay'), + ('92e82277-d5e4-43d7-8dd3-3a3b316c41f7', 'word beginning with qu and a preceding consonant', 'square', 'aresquay'), + ('79ae4248-3499-4d5b-af46-5cb05fa073ac', 'word beginning with th', 'therapy', 'erapythay'), + ('e0b3ae65-f508-4de3-8999-19c2f8e243e1', 'word beginning with thr', 'thrush', 'ushthray'), + ('20bc19f9-5a35-4341-9d69-1627d6ee6b43', 'word beginning with sch', 'school', 'oolschay'), + ('54b796cb-613d-4509-8c82-8fbf8fc0af9e', 'word beginning with yt', 'yttria', 'yttriaay'), + ('8c37c5e1-872e-4630-ba6e-d20a959b67f6', 'word beginning with xr', 'xray', 'xrayay'), + ('a4a36d33-96f3-422c-a233-d4021460ff00', 'y is treated like a consonant at the beginning of a word', 'yellow', 'ellowyay'), + ('adc90017-1a12-4100-b595-e346105042c7', 'y is treated like a vowel at the end of a consonant cluster', 'rhythm', 'ythmrhay'), + ('29b4ca3d-efe5-4a95-9a54-8467f2e5e59a', 'y as second letter in two letter word', 'my', 'ymay'), + ('44616581-5ce3-4a81-82d0-40c7ab13d2cf', 'a whole phrase', 'quick fast run', 'ickquay astfay unray'); diff --git a/exercises/practice/pig-latin/data.csv b/exercises/practice/pig-latin/data.csv new file mode 100644 index 0000000..d9841be --- /dev/null +++ b/exercises/practice/pig-latin/data.csv @@ -0,0 +1,23 @@ +"apple", +"ear", +"igloo", +"object", +"under", +"equal", +"pig", +"koala", +"xenon", +"qat", +"liquid", +"chair", +"queen", +"square", +"therapy", +"thrush", +"school", +"yttria", +"xray", +"yellow", +"rhythm", +"my", +"quick fast run", diff --git a/exercises/practice/pig-latin/pig-latin.sql b/exercises/practice/pig-latin/pig-latin.sql new file mode 100644 index 0000000..14857c0 --- /dev/null +++ b/exercises/practice/pig-latin/pig-latin.sql @@ -0,0 +1,2 @@ +-- Schema: CREATE TABLE "pig-latin" ( phrase TEXT NOT NULL, result TEXT ); +-- Task: update the pig-latin table and set the result based on the phrase. diff --git a/exercises/practice/pig-latin/pig-latin_test.sql b/exercises/practice/pig-latin/pig-latin_test.sql new file mode 100644 index 0000000..d0680a0 --- /dev/null +++ b/exercises/practice/pig-latin/pig-latin_test.sql @@ -0,0 +1,40 @@ +-- Create database: +.read ./create_fixture.sql + +-- Read user student solution and save any output as markdown in user_output.md: +.mode markdown +.output user_output.md +.read ./pig-latin.sql +.output + +-- Create a clean testing environment: +.read ./create_test_table.sql + +-- Comparison of user input and the tests updates the status for each test: +UPDATE tests +SET status = 'pass' +FROM (SELECT phrase, result FROM "pig-latin") AS actual +WHERE (actual.phrase, actual.result) = (tests.phrase, tests.expected); + +-- Update message for failed tests to give helpful information: +UPDATE tests +SET message = ( + 'Result for "' + || tests.phrase + || '"' + || ' is <' || COALESCE(actual.result, 'NULL') + || '> but should be <' || tests.expected || '>' +) +FROM (SELECT phrase, result FROM "pig-latin") AS actual +WHERE actual.phrase = tests.phrase AND tests.status = 'fail'; + +-- Save results to ./output.json (needed by the online test-runner) +.mode json +.once './output.json' +SELECT description, status, message, output, test_code, task_id +FROM tests; + +-- Display test results in readable form for the student: +.mode table +SELECT description, status, message +FROM tests;