feat: Implement aoc2024 day1

aoc2024.ps1

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+#!/usr/bin/env pwsh
+[CmdletBinding()]
+param (
+    [switch] $Release,
+    [switch] $Full,
+    [switch] $All,
+    [switch] $NoBuild,
+    [ValidateSet(
+        "day1"
+        # , "day2", "day3", "day4", "day5", "day6", "day7", "day8", "day9"
+        # , "day10", "day11", "day12", "day13", "day14", "day15", "day16"
+        # , "day17", "day18", "day19", "day20", "day21", "day22"
+        # , "day23", "day24", "day25"
+    )]
+    [string] $Day
+)
+function ExecSafe([scriptblock] $cmd) {
+    & $cmd
+    if ($LASTEXITCODE) { exit $LASTEXITCODE }
+}
+
+$AllDays = @(
+    "day1", "day2", "day3", "day4", "day5", "day6", "day7", "day8", "day9"
+    , "day10", "day11", "day12", "day13", "day14", "day15", "day16"
+    , "day17", "day18", "day19", "day20", "day21", "day22"
+    , "day23", "day24", "day25"
+)
+
+$root = $PSScriptRoot
+$cliScript = Join-Path -Path $root -ChildPath "cli.ps1" -Resolve
+
+if ($All) {
+    $NoBuild = $false
+
+    $SelectedDays = $AllDays
+
+    if ($Day) {
+        $SelectedDays = @()
+        $DidFind = $false
+        foreach ($ad in $AllDays) {
+            if ($ad -eq $Day) {
+                $DidFind = $true
+                $SelectedDays += $ad
+            }
+            elseif ($DidFind) {
+                $SelectedDays += $ad
+            }
+        }
+    }
+
+    foreach ($ad in $SelectedDays) {
+        $cliArgs = @(
+            "./visp/examples/aoc2023/$ad.visp"
+        )
+        if ($Full) {
+            $cliArgs += "full"
+        }
+        if ($Release) {
+            $cliArgs += "--release"
+        }
+
+        Write-Host "Running: $ad"
+
+        ExecSafe {
+            & $cliScript -NoBuild:$NoBuild @cliArgs
+        }
+
+        $NoBuild = $true
+    }
+}
+else {
+    $cliArgs = @(
+        "./visp/examples/aoc2024/$Day.visp"
+    )
+    if ($Full) {
+        $cliArgs += "full"
+    }
+    if ($Release) {
+        $cliArgs += "--release"
+    }
+
+    ExecSafe {
+        & $cliScript -NoBuild:$NoBuild @cliArgs
+    }
+}
+

visp/examples/aoc2024/.gitignore

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+inputs/*.txt
+!inputs/*example.txt

visp/examples/aoc2024/common.visp

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+;; Copyright 2024 Ville Penttinen
+;; Distributed under the MIT License.
+;; https://github.com/vipentti/visp-fs/blob/main/LICENSE.md
+;;
+;; for basic syntax highlighting
+;; vim: set syntax=clojure:
+(require SpanUtils "0.4.1")
+
+(open System)
+(open System.Collections.Generic)
+(open System.Text.RegularExpressions)
+(open SpanUtils.Extensions)
+
+(let commonSplitOptions StringSplitOptions.TrimEntries)
+
+(let IS_EXAMPLE (not (Array.contains "full" ARGV)))
+
+(fn WriteResult (part value ex)
+  (printfn "%s: %A %A" part value (= value ex)))
+
+(fn EnumerateSpanSplitLines ([text: string])
+  (.EnumerateSplitSubstrings text [| #\lf #\cr |]  commonSplitOptions))
+
+(fn EnumareteSpanSplitChars ([ch: array<char>] [text: ReadOnlySpan<char>])
+  (.EnumerateSplitSubstrings text ch commonSplitOptions))
+
+(fn ReadInput ([day: string])
+  (let filepath (String.concat "" [| "./inputs/" day (if IS_EXAMPLE "_example" "") ".txt" |]))
+  (printfn "file: %s" filepath)
+  (System.IO.File.ReadAllText filepath))
+
+(syntax-macro Macro_ReadWhileNotEmpty
+  ([_ (id enu) body ...]
+    (while (.MoveNext enu)
+      (let id (+Current enu))
+      (unless (+IsEmpty id)
+        (begin body ...)
+      ))))
+
+(syntax-macro Macro_ReadNext
+  [(_ enu)
+    (begin
+      (ignore (.MoveNext enu))
+      (+Current enu))])

visp/examples/aoc2024/day1.visp

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+
+;; Copyright 2024 Ville Penttinen
+;; Distributed under the MIT License.
+;; https://github.com/vipentti/visp-fs/blob/main/LICENSE.md
+;;
+;; for basic syntax highlighting
+;; vim: set syntax=clojure:
+
+;; day1
+;;
+;; Include common utlities
+(include "./common.visp")
+
+;; Functions & types
+
+(fn ParseFile ([text: string])
+  (mut lines (EnumerateSpanSplitLines text))
+
+  (mut lhs_items (||))
+  (mut rhs_items (||))
+
+  (Macro_ReadWhileNotEmpty [line lines]
+    (mut parts (.EnumerateSplitSubstrings line [| #\space |] (bor StringSplitOptions.TrimEntries StringSplitOptions.RemoveEmptyEntries)))
+    (let lhs (span->int64 (Macro_ReadNext parts)))
+    (let rhs (span->int64 (Macro_ReadNext parts)))
+
+    (up! lhs_items (cons lhs))
+    (up! rhs_items (cons rhs))
+
+    ())
+
+    (lhs_items . rhs_items))
+
+(fn Part1 (parsedInput)
+  ;; Implement part1
+
+  (let (lhs, rhs) parsedInput)
+
+  (let sorted_lhs (-> lhs List.sort))
+  (let sorted_rhs (-> rhs List.sort))
+
+  (let zipper (List.zip sorted_lhs sorted_rhs))
+  (-> zipper
+    (List.fold #(+ %1 (abs (- (fst %2) (snd %2)))) 0L)
+  ))
+
+(fn Part2 (parsedInput)
+  ;; Implement part2
+  (let (lhs, rhs) parsedInput)
+
+  (let result (-> lhs
+    (List.fold #(begin
+      (let cur %2)
+      (let counts (-> rhs (List.filter #(= cur %1)) List.length))
+      (+ %1 (* cur (int64 counts)))
+    ) 0L)
+  ))
+
+  result)
+
+;; Implementation
+
+(let parsed (-> (ReadInput "day1") ParseFile))
+
+;; Expected results
+(let PART1_EXPECTED_RESULT (if IS_EXAMPLE 11 2264607))
+(let PART2_EXPECTED_RESULT (if IS_EXAMPLE 31 19457120))
+
+(WriteResult "part1" (-> parsed Part1) PART1_EXPECTED_RESULT)
+(WriteResult "part2" (-> parsed Part2) PART2_EXPECTED_RESULT)
+
+()

visp/examples/aoc2024/init.visp

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+;; Copyright 2024 Ville Penttinen
+;; Distributed under the MIT License.
+;; https://github.com/vipentti/visp-fs/blob/main/LICENSE.md
+;;
+;; for basic syntax highlighting
+;; vim: set syntax=clojure:
+(require Flurl.Http "4.0.2")
+
+(open System)
+(open System.IO)
+(open Flurl.Http)
+
+(fn GetFileTemplate (day)
+  $$"""
+;; Copyright 2024 Ville Penttinen
+;; Distributed under the MIT License.
+;; https://github.com/vipentti/visp-fs/blob/main/LICENSE.md
+;;
+;; for basic syntax highlighting
+;; vim: set syntax=clojure:
+
+;;
+;; {{day}}
+;;
+;; Include common utlities
+(include "./common.visp")
+
+;; Functions & types
+
+(fn ParseFile ([text: string])
+  (mut lines (EnumerateSpanSplitLines text))
+
+  (Macro_ReadWhileNotEmpty [line lines]
+    ;; Read contents here
+    ())
+  )
+
+(fn Part1 (parsedInput)
+  ;; Implement part1
+  0)
+
+(fn Part2 (parsedInput)
+  ;; Implement part2
+  0)
+
+;; Implementation
+
+(let parsed (-> (ReadInput "{{day}}") ParseFile))
+
+;; Expected results
+(let PART1_EXPECTED_RESULT (if IS_EXAMPLE -1 -1))
+(let PART2_EXPECTED_RESULT (if IS_EXAMPLE -1 -1))
+
+(WriteResult "part1" (-> parsed Part1) PART1_EXPECTED_RESULT)
+(WriteResult "part2" (-> parsed Part2) PART2_EXPECTED_RESULT)
+
+()
+"""
+)
+
+(fn TryGetNamedArg (name)
+  (match (Array.tryFindIndex #(= name %1) ARGV)
+    [(Some index)
+      (if (< (inc index) (+Length ARGV))
+        (Some (.[(inc index)] ARGV))
+        None)
+    ]
+    [None None]))
+
+(fn Run ()
+  (let dayNr (match (TryGetNamedArg "--day")
+    [(Some it) it]
+    [None (failwithf "Missing --day")]
+  ))
+
+  (let sessionToken (match (TryGetNamedArg "--session")
+    [(Some it) it]
+    [None (match (TryGetEnvVar "AOC_SESSION")
+      [(Some it) it]
+      [None (failwithf "Missing either --session or env:AOC_SESSION")]
+    )]
+  ))
+
+  (printfn "Setting up day %s" dayNr)
+
+  (let dayName $"day{dayNr}")
+
+  (let exampleInput $"{dayName}_example.txt")
+  (let mainInput $"{dayName}.txt")
+
+  (printfn "CWD: %A" (GetCurrentDirectory))
+
+  (let targetFile (->>
+    (Path.Combine ((GetCurrentDirectory) . $"{dayName}.visp"))
+    (Path.GetFullPath)
+  ))
+
+  (let inputPath (->>
+    (Path.Combine ((GetCurrentDirectory) . "inputs"))
+    (Path.GetFullPath)
+  ))
+
+  (let exampleInputPath (->> (-Combine Path (inputPath . exampleInput)) (Path.GetFullPath)))
+  (let mainInputPath (->> (-Combine Path (inputPath . mainInput)) (Path.GetFullPath)))
+
+  (unless (.Exists File targetFile)
+    (printfn "new %s" targetFile)
+    (.WriteAllText System.IO.File targetFile (GetFileTemplate dayName))
+  )
+
+  (unless (.Exists File exampleInputPath)
+    (printfn "new %s" exampleInputPath)
+    (.WriteAllText System.IO.File exampleInputPath "")
+  )
+
+  (unless (.Exists File mainInputPath)
+    (printfn "new %s" mainInputPath)
+    (->> (task->
+      (let! content
+        (begin
+          (let url $"https://adventofcode.com/2024/day/{dayNr}/input")
+          (printfn "downloading: %s" url)
+          (->> url
+            #(-WithCookie %1 ("session" . sessionToken))
+            .GetStringAsync
+          )
+        )
+      )
+      (do! (.WriteAllTextAsync System.IO.File mainInputPath content)))
+
+      (Async.AwaitTask)
+      (Async.RunSynchronously)
+
+    )
+  )
+
+  ;; (cond_
+  ;;   [(.Exists File targetFile)
+  ;;     (printfn "%s found" targetFile)
+  ;;   ]
+  ;;   [_
+  ;;     (printfn "new %s" targetFile)
+  ;;   ]
+  ;; )
+)
+
+(Run)

visp/examples/aoc2024/inputs/day1_example.txt

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+3   4
+4   3
+2   5
+1   3
+3   9
+3   3