Day 1

days/day01.st

@@ -1,66 +1,15 @@
-Object subclass: CharPattern [
-    | pattern assoc next |
-    pattern [ ^pattern ]
-    assoc [ ^assoc ]
-    init: patIn
-    [ pattern := patIn.
-      assoc := patIn tokenize: '\|'.
-      ^self ]
-
-    next: nextPat
-    [ nextPat ifNotNil: [
-        next := nextPat.
-        pattern := pattern,'|',nextPat pattern ] ]
-
-    findIn: line
-    [ ^(line searchRegex: pattern) match ]
-
-    interpWord: word
-    [ ^(assoc indexOf: word ifAbsent: [nil])
-          ifNil: [ next interpWord: word ]
-          ifNotNil: [:it | it - 1] ]
-
-    findAndInterp: line
-    [ ^self interpWord: (self findIn: line) ]
-
-    reversed
-    [ ^(CharPattern
-            new: ((assoc collect: [:it | it reverse])
-                      join: '|'))
-           next: next ]
-]
-
-CharPattern class extend [
-    new: pattern
-    [ | r | r := super new. r init: pattern. ^r ]
-]
-
-String extend [
-    calibration: pat rpat: rpat
-    [ | d1 d2 |
-      d1 := pat findAndInterp: self.
-      d2 := rpat findAndInterp: self reverse.
-      ^(d1 * 10) + d2 ]
-]
-
-OrderedCollection extend [
-    collectPart: pat
-    [ | rpat |
-      rpat := pat reversed.
-      ^self collect: [
-          :line |
-          [ line calibration: pat rpat: rpat ]
-          ifError: [ :exn | exn ]
-      ]
-    ]
-]
-
-pat1 := CharPattern new: '0|1|2|3|4|5|6|7|8|9'.
-pat2 := CharPattern new: 'zero|one|two|three|four|five|six|seven|eight|nine'.
-pat2 next: pat1.
-
-AOC part1: pat1;
-    part2: pat2;
-    arg: [ FileStream stdin toLines ];
-    map: [ :lines :pat | (lines collectPart: pat) sum ];
+AOC part1: [ :lines | | sorted |
+             sorted := (lines collect: [ :it | it asSortedCollection readStream ]).
+             ((sorted at: 1) with: (sorted at: 2)) collect:
+                 [ :arr | ((arr at: 1) - (arr at: 2)) abs ] ];
+    part2: [ :lines | | counts | counts := Dictionary new.
+             (lines at: 2) do: [
+                 :elt | counts at: elt
+                               put: 1 + (counts at: elt ifAbsent: [0]) ].
+             (lines at: 1) collect: [ :elt | elt * (counts at: elt ifAbsent: [0]) ] ];
+    arg: [ | inp l r | inp := FileStream stdin toLines collect: [ :ln | ln scanf: '%d %d' ].
+           l := inp collect: [ :e | e at: 1 ].
+           r := inp collect: [ :e | e at: 2 ].
+           {l . r} ];
+    map: [ :lines :part | (part value: lines) sum ];
     finish.

days/interaction.st

@@ -0,0 +1,66 @@
+Object subclass: ExplorerStream [
+    | stream objects | on: aStream
+    [ stream := aStream.
+      objects := OrderedCollection new. ]
+
+    title: title [ stream << '# ' << title ; nl. ]
+    subtitle: block [ stream << '**'. block value. stream << '**'; nl; nl. ]
+    text: text [ text displayOn: stream ]
+    nl [ stream nl ]
+
+    linkTextTo: obj name: text
+    [ |r| r := '[%1][%2]' % {text . objects size}.
+      objects add: obj. ^r ]
+
+    linkTo: obj name: text [ self text: (self linkTextTo: obj name: text). ]
+
+    section: title do: block [ self text: '## '; text: title; nl. block value ]
+    ssection: title do: block [ self text: '### '; text: title; nl. block value ]
+]
+ExplorerStream class extend [ on: stream [ ^super new on: stream ] ]
+
+Object extend [
+    emacsExploreOn: exs
+    [ self basicEmacsExploreOn: exs;
+           emacsExploreMembersOn: exs]
+
+    basicEmacsExploreOn: exs
+    [ exs title: self;
+          subtitle: [
+          exs text: 'of class: ';
+              linkTo: self class name: self class ] ]
+
+    emacsExploreMembersOn: exs []
+]
+
+Class extend [
+    emacsExploreOn: exs
+    [ self basicEmacsExploreOn: exs.
+      self superclass ifNotNil: [
+          :sc | exs subtitle: [
+              exs text: 'Superclass: ';
+                  linkTo: sc name: sc.
+          ] ].
+      self category ifNotNil: [
+          :cat | exs subtitle: [ exs text: 'Category: '; text: cat ] ].
+      self comment
+          ifNotNil: [ :cmnt | exs text: cmnt; nl; nl ]
+          ifNil: [ exs text: 'No comment.'; nl; nl ].
+
+      self subclasses size > 0 ifTrue: [
+          exs subtitle: [
+          exs text: 'Subclasses: '.
+          self subclasses
+              do: [ :sc | exs linkTo: sc name: sc ]
+              separatedBy: [ exs text: ', ' ]. ] ].
+
+      exs section: 'Own members' do:
+          [ self selectors do: [
+              :selector | | method |
+              exs ssection: selector asString do:
+                  [ (self sourceCodeAt: selector ifAbsent: [nil])
+                        ifNotNil: [ :source | exs text: source ]
+                        ifNil: [ exs text: 'No source available.' ] ]; nl; nl.
+          ] ]
+    ]
+]

run.sh

@@ -5,7 +5,7 @@ cd "$DIR" || exit 1
 
 if [ -z "$1" ]
 then DAYN="$(date +%d)"
-else DAYN="$1"
+else DAYN="$1"; shift
 fi
 DAY="$(echo "$DAYN" | sed 's/^0*//')"
 DAYP="$(printf "%02d" "$DAY")"