diff --git a/config.json b/config.json index 38b9a735..5e5ef8d4 100644 --- a/config.json +++ b/config.json @@ -735,6 +735,14 @@ "practices": [], "prerequisites": [], "difficulty": 1 + }, + { + "slug": "proverb", + "name": "Proverb", + "uuid": "ef243fad-2ac8-4313-a484-1c28a6d7ab21", + "practices": [], + "prerequisites": [], + "difficulty": 1 } ] }, diff --git a/exercises/practice/proverb/.docs/instructions.md b/exercises/practice/proverb/.docs/instructions.md new file mode 100644 index 00000000..f6fb8593 --- /dev/null +++ b/exercises/practice/proverb/.docs/instructions.md @@ -0,0 +1,19 @@ +# Instructions + +For want of a horseshoe nail, a kingdom was lost, or so the saying goes. + +Given a list of inputs, generate the relevant proverb. +For example, given the list `["nail", "shoe", "horse", "rider", "message", "battle", "kingdom"]`, you will output the full text of this proverbial rhyme: + +```text +For want of a nail the shoe was lost. +For want of a shoe the horse was lost. +For want of a horse the rider was lost. +For want of a rider the message was lost. +For want of a message the battle was lost. +For want of a battle the kingdom was lost. +And all for the want of a nail. +``` + +Note that the list of inputs may vary; your solution should be able to handle lists of arbitrary length and content. +No line of the output text should be a static, unchanging string; all should vary according to the input given. diff --git a/exercises/practice/proverb/.meta/config.json b/exercises/practice/proverb/.meta/config.json new file mode 100644 index 00000000..962abc34 --- /dev/null +++ b/exercises/practice/proverb/.meta/config.json @@ -0,0 +1,19 @@ +{ + "authors": [ + "habere-et-dispertire" + ], + "files": { + "solution": [ + "lib/Proverb.rakumod" + ], + "test": [ + "t/proverb.rakutest" + ], + "example": [ + ".meta/solutions/lib/Proverb.rakumod" + ] + }, + "blurb": "For want of a horseshoe nail, a kingdom was lost, or so the saying goes. Output the full text of this proverbial rhyme.", + "source": "Wikipedia", + "source_url": "https://en.wikipedia.org/wiki/For_Want_of_a_Nail" +} diff --git a/exercises/practice/proverb/.meta/solutions/lib/Proverb.rakumod b/exercises/practice/proverb/.meta/solutions/lib/Proverb.rakumod new file mode 100644 index 00000000..64d7cf72 --- /dev/null +++ b/exercises/practice/proverb/.meta/solutions/lib/Proverb.rakumod @@ -0,0 +1,13 @@ +unit module Proverb; + +multi recite ( $noun where $_ eq '' ) is export { } +multi recite ( $noun where $_ ne '' ) { + "And all for the want of a $noun." +} +multi recite ( @nouns ) { + join "\n", + @nouns + .rotor(2=>-1) + .map( { "For want of a {.head} the {.tail} was lost." } ), + recite @nouns.head +} diff --git a/exercises/practice/proverb/.meta/solutions/t/proverb.rakutest b/exercises/practice/proverb/.meta/solutions/t/proverb.rakutest new file mode 120000 index 00000000..7b98c3b9 --- /dev/null +++ b/exercises/practice/proverb/.meta/solutions/t/proverb.rakutest @@ -0,0 +1 @@ +../../../t/proverb.rakutest \ No newline at end of file diff --git a/exercises/practice/proverb/.meta/template-data.yaml b/exercises/practice/proverb/.meta/template-data.yaml new file mode 100644 index 00000000..db54d937 --- /dev/null +++ b/exercises/practice/proverb/.meta/template-data.yaml @@ -0,0 +1,30 @@ +properties: + recite: + test: |- + sprintf(q :to 'END', %case.Array.raku, %case.join("\n").raku, %case.raku); + cmp-ok( + recite(%s), + "eq", + %s, + %s, + ); + END + + +unit: module +example: |- + multi recite ( $noun where $_ eq '' ) is export { } + multi recite ( $noun where $_ ne '' ) { + "And all for the want of a $noun." + } + multi recite ( @nouns ) { + join "\n", + @nouns + .rotor(2=>-1) + .map( { "For want of a {.head} the {.tail} was lost." } ), + recite @nouns.head + } + +stub: |- + sub proverb (@nouns) is export { + } diff --git a/exercises/practice/proverb/.meta/tests.toml b/exercises/practice/proverb/.meta/tests.toml new file mode 100644 index 00000000..dc92a0c9 --- /dev/null +++ b/exercises/practice/proverb/.meta/tests.toml @@ -0,0 +1,28 @@ +# 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. + +[e974b73e-7851-484f-8d6d-92e07fe742fc] +description = "zero pieces" + +[2fcd5f5e-8b82-4e74-b51d-df28a5e0faa4] +description = "one piece" + +[d9d0a8a1-d933-46e2-aa94-eecf679f4b0e] +description = "two pieces" + +[c95ef757-5e94-4f0d-a6cb-d2083f5e5a83] +description = "three pieces" + +[433fb91c-35a2-4d41-aeab-4de1e82b2126] +description = "full proverb" + +[c1eefa5a-e8d9-41c7-91d4-99fab6d6b9f7] +description = "four pieces modernized" diff --git a/exercises/practice/proverb/lib/Proverb.rakumod b/exercises/practice/proverb/lib/Proverb.rakumod new file mode 100644 index 00000000..61202808 --- /dev/null +++ b/exercises/practice/proverb/lib/Proverb.rakumod @@ -0,0 +1,4 @@ +unit module Proverb; + +sub proverb (@nouns) is export { +} diff --git a/exercises/practice/proverb/t/proverb.rakutest b/exercises/practice/proverb/t/proverb.rakutest new file mode 100755 index 00000000..1bedca1a --- /dev/null +++ b/exercises/practice/proverb/t/proverb.rakutest @@ -0,0 +1,48 @@ +#!/usr/bin/env raku +use Test; +use lib $?FILE.IO.parent(2).add('lib'); +use Proverb; + +cmp-ok( # begin: e974b73e-7851-484f-8d6d-92e07fe742fc + recite([]), + "eq", + "", + "zero pieces", +); # end: e974b73e-7851-484f-8d6d-92e07fe742fc + +cmp-ok( # begin: 2fcd5f5e-8b82-4e74-b51d-df28a5e0faa4 + recite(["nail"]), + "eq", + "And all for the want of a nail.", + "one piece", +); # end: 2fcd5f5e-8b82-4e74-b51d-df28a5e0faa4 + +cmp-ok( # begin: d9d0a8a1-d933-46e2-aa94-eecf679f4b0e + recite(["nail", "shoe"]), + "eq", + "For want of a nail the shoe was lost.\nAnd all for the want of a nail.", + "two pieces", +); # end: d9d0a8a1-d933-46e2-aa94-eecf679f4b0e + +cmp-ok( # begin: c95ef757-5e94-4f0d-a6cb-d2083f5e5a83 + recite(["nail", "shoe", "horse"]), + "eq", + "For want of a nail the shoe was lost.\nFor want of a shoe the horse was lost.\nAnd all for the want of a nail.", + "three pieces", +); # end: c95ef757-5e94-4f0d-a6cb-d2083f5e5a83 + +cmp-ok( # begin: 433fb91c-35a2-4d41-aeab-4de1e82b2126 + recite(["nail", "shoe", "horse", "rider", "message", "battle", "kingdom"]), + "eq", + "For want of a nail the shoe was lost.\nFor want of a shoe the horse was lost.\nFor want of a horse the rider was lost.\nFor want of a rider the message was lost.\nFor want of a message the battle was lost.\nFor want of a battle the kingdom was lost.\nAnd all for the want of a nail.", + "full proverb", +); # end: 433fb91c-35a2-4d41-aeab-4de1e82b2126 + +cmp-ok( # begin: c1eefa5a-e8d9-41c7-91d4-99fab6d6b9f7 + recite(["pin", "gun", "soldier", "battle"]), + "eq", + "For want of a pin the gun was lost.\nFor want of a gun the soldier was lost.\nFor want of a soldier the battle was lost.\nAnd all for the want of a pin.", + "four pieces modernized", +); # end: c1eefa5a-e8d9-41c7-91d4-99fab6d6b9f7 + +done-testing;