Migrate spell checking from PySpelling/aspell to cspell

.cspell/pony-terms.txt

@@ -0,0 +1,23 @@
+Akka
+AOT
+deserialisation
+deserialise
+deserialised
+deserialising
+desugars
+docstrings
+finaliser
+finalisers
+forgeable
+LLDB
+parameterise
+Ponylang
+ponyc
+reraise
+struct
+structs
+subtyping
+unalias
+unaliased
+unaliasing
+Zulip

.github/workflows/pr.yml

@@ -31,4 +31,8 @@ jobs:
       - name: Checkout source
         uses: actions/checkout@v4.1.1
       - name: Check spelling
-        uses: rojopolis/spellcheck-github-actions@e0dcc87bedf34ff10d6be443753f1c770bacbaa2
+        # streetsidesoftware/cspell-action v8.2.0
+        uses: streetsidesoftware/cspell-action@d5d910b521ad408f1e7383c24609079f5a88bdca
+        with:
+          use_cspell_files: true
+          incremental_files_only: false

cspell.json

@@ -0,0 +1,32 @@
+{
+  "version": "0.2",
+  "language": "en",
+  "files": ["docs/**/*.md"],
+  "dictionaries": ["en-gb", "pony-terms"],
+  "dictionaryDefinitions": [
+    {
+      "name": "pony-terms",
+      "path": "./.cspell/pony-terms.txt",
+      "addWords": false
+    }
+  ],
+  "patterns": [
+    {
+      "name": "markdown-fenced-code",
+      "pattern": "/^(\\s*`{3,}).*[\\s\\S]*?^\\1/gm"
+    },
+    {
+      "name": "markdown-inline-code",
+      "pattern": "/`[^`]*`/g"
+    }
+  ],
+  "languageSettings": [
+    {
+      "languageId": "markdown",
+      "ignoreRegExpList": [
+        "markdown-fenced-code",
+        "markdown-inline-code"
+      ]
+    }
+  ]
+}