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Add swift-scheduling (#121)
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‎config.json‎

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"prerequisites": [],
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"difficulty": 5
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},
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{
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"slug": "swift-scheduling",
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"name": "Swift Scheduling",
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"uuid": "c1d0b2a7-d27e-43c9-a82b-73ff892a9ff3",
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"practices": [],
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"prerequisites": [],
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"difficulty": 5
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},
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{
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"slug": "change",
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"name": "Change",

‎exercises/practice/swift-scheduling/.busted‎

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return {
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default = {
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ROOT = { '.' }
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}
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}

‎exercises/practice/swift-scheduling/.docs/instructions.md‎

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# Instructions
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Your task is to convert delivery date descriptions to _actual_ delivery dates, based on when the meeting started.
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There are two types of delivery date descriptions:
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1. Fixed: a predefined set of words.
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2. Variable: words that have a variable component, but follow a predefined set of patterns.
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## Fixed delivery date descriptions
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There are three fixed delivery date descriptions:
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- `"NOW"`
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- `"ASAP"` (As Soon As Possible)
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- `"EOW"` (End Of Week)
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The following table shows how to translate them:
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| Description | Meeting start | Delivery date |
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| ----------- | ----------------------------- | ----------------------------------- |
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| `"NOW"` | - | Two hours after the meeting started |
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| `"ASAP"` | Before 13:00 | Today at 17:00 |
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| `"ASAP"` | After or at 13:00 | Tomorrow at 13:00 |
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| `"EOW"` | Monday, Tuesday, or Wednesday | Friday at 17:00 |
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| `"EOW"` | Thursday or Friday | Sunday at 20:00 |
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## Variable delivery date descriptions
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There are two variable delivery date description patterns:
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- `"<N>M"` (N-th month)
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- `"Q<N>"` (N-th quarter)
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| Description | Meeting start | Delivery date |
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| ----------- | ------------------------- | --------------------------------------------------------- |
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| `"<N>M"` | Before N-th month | At 8:00 on the _first_ workday of this year's N-th month |
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| `"<N>M"` | After or in N-th month | At 8:00 on the _first_ workday of next year's N-th month |
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| `"Q<N>"` | Before or in N-th quarter | At 8:00 on the _last_ workday of this year's N-th quarter |
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| `"Q<N>"` | After N-th quarter | At 8:00 on the _last_ workday of next year's N-th quarter |
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~~~~exercism/note
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A workday is a Monday, Tuesday, Wednesday, Thursday, or Friday.
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A year has four quarters, each with three months:
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1. January/February/March
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2. April/May/June
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3. July/August/September
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4. October/November/December.
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~~~~

‎exercises/practice/swift-scheduling/.docs/introduction.md‎

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# Introduction
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This week, it is your turn to take notes in the department's planning meeting.
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In this meeting, your boss will set delivery dates for all open work items.
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Annoyingly, instead of specifying the _actual_ delivery dates, your boss will only _describe them_ in an abbreviated format.
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As many of your colleagues won't be familiar with this corporate lingo, you'll need to convert these delivery date descriptions to actual delivery dates.

‎exercises/practice/swift-scheduling/.meta/config.json‎

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{
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"authors": [
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"glennj"
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],
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"files": {
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"solution": [
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"swift_scheduling.moon"
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],
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"test": [
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"swift_scheduling_spec.moon"
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],
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"example": [
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".meta/example.moon"
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]
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},
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"blurb": "Convert delivery date descriptions to actual delivery dates.",
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"source": "Erik Schierboom",
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"source_url": "https://github.com/exercism/problem-specifications/pull/2536"
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}

‎exercises/practice/swift-scheduling/.meta/example.moon‎

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QUARTER_END = {
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{month: 3, day: 31}
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{month: 6, day: 30}
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{month: 9, day: 30}
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{month: 12, day: 31}
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}
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now = (spec) ->
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with spec
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.hour += 2
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asap = (spec) ->
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with spec
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.day += (.hour < 13 and 0 or 1)
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.hour = (.hour < 13 and 17 or 13)
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.min = 0
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eow = (spec) ->
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dow = tonumber os.date '%w', os.time spec
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switch dow
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when 1, 2, 3
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-- want dow = 5, Friday
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spec.day += 5 - dow
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spec.hour = 17
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when 4, 5
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spec.day += 7 - dow
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spec.hour = 20
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with spec
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.min = 0
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month = (spec, m) ->
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spec = {
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year: spec.year + (spec.month < m and 0 or 1)
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month: m
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day: 1
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hour: 8
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}
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switch os.date '%w', os.time spec
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when '0' then spec.day += 1
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when '6' then spec.day += 2
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-- os.time normalizes the table it's given.
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-- This can cause off-by-one DST errors unless we unset
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-- the isdst field.
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with spec
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.isdst = nil
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quarter = (spec, q) ->
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current_quarter = 1 + spec.month // 3
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spec = {
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year: spec.year + (current_quarter > q and 1 or 0)
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month: QUARTER_END[q].month
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day: QUARTER_END[q].day
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hour: 8
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}
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switch os.date '%w', os.time spec
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when '0' then spec.day -= 2
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when '6' then spec.day -= 1
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with spec
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.isdst = nil
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-- ------------------------------------------------------------
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delivery_date = (code, timestamp) ->
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dt = [tonumber n for n in timestamp\gmatch '%d+']
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assert #dt == 6, "can't parse timestamp '#{timestamp}'"
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timespec = {
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year: dt[1]
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month: dt[2]
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day: dt[3]
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hour: dt[4]
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min: dt[5]
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sec: dt[6]
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}
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timespec = switch code
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when 'NOW' then now timespec
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when 'ASAP' then asap timespec
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when 'EOW' then eow timespec
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else
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m = code\match '(%d+)M'
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q = code\match 'Q([1234])'
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if m then month timespec, tonumber m
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elseif q then quarter timespec, tonumber q
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else error "unknown code #{code}"
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os.date '%Y-%m-%dT%H:%M:%S', os.time timespec
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{ :delivery_date }

‎exercises/practice/swift-scheduling/.meta/spec_generator.moon‎

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{
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module_imports: {'delivery_date'},
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generate_test: (case, level) ->
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lines = {
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"result = delivery_date #{quote case.input.description}, #{quote case.input.meetingStart}"
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"expected = #{quote case.expected}"
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"assert.are.equal expected, result"
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}
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table.concat [indent line, level for line in *lines], '\n'
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}

‎exercises/practice/swift-scheduling/.meta/tests.toml‎

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# This is an auto-generated file.
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#
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# Regenerating this file via `configlet sync` will:
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# - Recreate every `description` key/value pair
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# - Recreate every `reimplements` key/value pair, where they exist in problem-specifications
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# - Remove any `include = true` key/value pair (an omitted `include` key implies inclusion)
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# - Preserve any other key/value pair
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#
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# As user-added comments (using the # character) will be removed when this file
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# is regenerated, comments can be added via a `comment` key.
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[1d0e6e72-f370-408c-bc64-5dafa9c6da73]
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description = "NOW translates to two hours later"
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[93325e7b-677d-4d96-b017-2582af879dc2]
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description = "ASAP before one in the afternoon translates to today at five in the afternoon"
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[cb4252a3-c4c1-41f6-8b8c-e7269733cef8]
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description = "ASAP at one in the afternoon translates to tomorrow at one in the afternoon"
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[6fddc1ea-2fe9-4c60-81f7-9220d2f45537]
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description = "ASAP after one in the afternoon translates to tomorrow at one in the afternoon"
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[25f46bf9-6d2a-4e95-8edd-f62dd6bc8a6e]
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description = "EOW on Monday translates to Friday at five in the afternoon"
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[0b375df5-d198-489e-acee-fd538a768616]
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description = "EOW on Tuesday translates to Friday at five in the afternoon"
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[4afbb881-0b5c-46be-94e1-992cdc2a8ca4]
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description = "EOW on Wednesday translates to Friday at five in the afternoon"
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[e1341c2b-5e1b-4702-a95c-a01e8e96e510]
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description = "EOW on Thursday translates to Sunday at eight in the evening"
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[bbffccf7-97f7-4244-888d-bdd64348fa2e]
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description = "EOW on Friday translates to Sunday at eight in the evening"
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[d651fcf4-290e-407c-8107-36b9076f39b2]
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description = "EOW translates to leap day"
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[439bf09f-3a0e-44e7-bad5-b7b6d0c4505a]
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description = "2M before the second month of this year translates to the first workday of the second month of this year"
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[86d82e83-c481-4fb4-9264-625de7521340]
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description = "11M in the eleventh month translates to the first workday of the eleventh month of next year"
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[0d0b8f6a-1915-46f5-a630-1ff06af9da08]
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description = "4M in the ninth month translates to the first workday of the fourth month of next year"
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[06d401e3-8461-438f-afae-8d26aa0289e0]
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description = "Q1 in the first quarter translates to the last workday of the first quarter of this year"
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[eebd5f32-b16d-4ecd-91a0-584b0364b7ed]
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description = "Q4 in the second quarter translates to the last workday of the fourth quarter of this year"
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[c920886c-44ad-4d34-a156-dc4176186581]
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description = "Q3 in the fourth quarter translates to the last workday of the third quarter of next year"

‎exercises/practice/swift-scheduling/swift_scheduling.moon‎

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{
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delivery_date: (code, timestamp) ->
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error 'Implement me'
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}

‎exercises/practice/swift-scheduling/swift_scheduling_spec.moon‎

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import delivery_date from require 'swift_scheduling'
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describe 'swift-scheduling', ->
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it 'NOW translates to two hours later', ->
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result = delivery_date 'NOW', '2012-02-13T09:00:00'
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expected = '2012-02-13T11:00:00'
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assert.are.equal expected, result
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pending 'ASAP before one in the afternoon translates to today at five in the afternoon', ->
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result = delivery_date 'ASAP', '1999-06-03T09:45:00'
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expected = '1999-06-03T17:00:00'
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assert.are.equal expected, result
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pending 'ASAP at one in the afternoon translates to tomorrow at one in the afternoon', ->
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result = delivery_date 'ASAP', '2008-12-21T13:00:00'
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expected = '2008-12-22T13:00:00'
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assert.are.equal expected, result
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pending 'ASAP after one in the afternoon translates to tomorrow at one in the afternoon', ->
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result = delivery_date 'ASAP', '2008-12-21T14:50:00'
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expected = '2008-12-22T13:00:00'
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assert.are.equal expected, result
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pending 'EOW on Monday translates to Friday at five in the afternoon', ->
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result = delivery_date 'EOW', '2025-02-03T16:00:00'
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expected = '2025-02-07T17:00:00'
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assert.are.equal expected, result
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pending 'EOW on Tuesday translates to Friday at five in the afternoon', ->
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result = delivery_date 'EOW', '1997-04-29T10:50:00'
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expected = '1997-05-02T17:00:00'
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assert.are.equal expected, result
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pending 'EOW on Wednesday translates to Friday at five in the afternoon', ->
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result = delivery_date 'EOW', '2005-09-14T11:00:00'
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expected = '2005-09-16T17:00:00'
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assert.are.equal expected, result
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pending 'EOW on Thursday translates to Sunday at eight in the evening', ->
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result = delivery_date 'EOW', '2011-05-19T08:30:00'
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expected = '2011-05-22T20:00:00'
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assert.are.equal expected, result
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pending 'EOW on Friday translates to Sunday at eight in the evening', ->
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result = delivery_date 'EOW', '2022-08-05T14:00:00'
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expected = '2022-08-07T20:00:00'
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assert.are.equal expected, result
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pending 'EOW translates to leap day', ->
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result = delivery_date 'EOW', '2008-02-25T10:30:00'
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expected = '2008-02-29T17:00:00'
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assert.are.equal expected, result
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pending '2M before the second month of this year translates to the first workday of the second month of this year', ->
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result = delivery_date '2M', '2007-01-02T14:15:00'
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expected = '2007-02-01T08:00:00'
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assert.are.equal expected, result
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pending '11M in the eleventh month translates to the first workday of the eleventh month of next year', ->
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result = delivery_date '11M', '2013-11-21T15:30:00'
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expected = '2014-11-03T08:00:00'
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assert.are.equal expected, result
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pending '4M in the ninth month translates to the first workday of the fourth month of next year', ->
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result = delivery_date '4M', '2019-11-18T15:15:00'
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expected = '2020-04-01T08:00:00'
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assert.are.equal expected, result
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pending 'Q1 in the first quarter translates to the last workday of the first quarter of this year', ->
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result = delivery_date 'Q1', '2003-01-01T10:45:00'
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expected = '2003-03-31T08:00:00'
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assert.are.equal expected, result
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pending 'Q4 in the second quarter translates to the last workday of the fourth quarter of this year', ->
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result = delivery_date 'Q4', '2001-04-09T09:00:00'
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expected = '2001-12-31T08:00:00'
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assert.are.equal expected, result
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pending 'Q3 in the fourth quarter translates to the last workday of the third quarter of next year', ->
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result = delivery_date 'Q3', '2022-10-06T11:00:00'
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expected = '2023-09-29T08:00:00'
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assert.are.equal expected, result

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