Highlighted code blocks inside the app (#1153)

app/MindWork AI Studio/Tools/CodeHighlighting/Languages/PowerShellCodeRules.cs

@@ -0,0 +1,46 @@
+namespace AIStudio.Tools.CodeHighlighting.Languages;
+
+/// <summary>
+/// How a PowerShell script looks to the tokenizer.
+/// </summary>
+/// <remarks>
+/// PowerShell ignores the case of its keywords and operators. A command such as Get-ChildItem has the
+/// form Verb-Noun, an operator such as -eq is a word after a hyphen, and a type stands in square
+/// brackets, as in [string]. The backtick escapes within double quotation marks; two apostrophes stand
+/// for one within single ones.
+/// </remarks>
+public static class PowerShellCodeRules
+{
+    public static readonly CodeLanguageRules RULES = new()
+    {
+        Keywords = CodeLanguageRules.WordsInAnyCase(
+            "begin", "break", "catch", "class", "continue", "do", "dynamicparam", "else", "elseif", "end", "enum", "exit",
+            "filter", "finally", "for", "foreach", "function", "if", "in", "param", "process", "return", "switch", "throw",
+            "trap", "try", "until", "using", "while"),
+
+        FunctionDeclarations = CodeLanguageRules.WordsInAnyCase("function", "filter"),
+        TypeDeclarations = CodeLanguageRules.WordsInAnyCase("class", "enum"),
+        LineComments = ["#"],
+        LineCommentsNeedSeparator = true,
+        BlockComments = [new("<#", "#>")],
+        Strings =
+        [
+            new("@\"", "\"@", Escape: '`', IsMultiline: true),
+            new("@'", "'@", Escape: null, IsMultiline: true),
+            new("\"", "\"", Escape: '`', IsMultiline: true),
+            new("'", "'", Escape: null, IsMultiline: true, DoubledCloseIsLiteral: true),
+        ],
+
+        VariablePrefix = '$',
+        VariableNameCharacters = ":",
+        WordCharacters = "-",
+        HighlightCommandNames = true,
+        HyphenOperators = CodeLanguageRules.WordsInAnyCase(
+            "and", "as", "band", "bnot", "bor", "bxor", "ceq", "clike", "cmatch", "cne", "contains", "creplace", "eq", "f",
+            "ge", "gt", "ieq", "ilike", "imatch", "in", "ine", "ireplace", "is", "isnot", "join", "le", "like", "lt",
+            "match", "ne", "not", "notcontains", "notin", "notlike", "notmatch", "or", "replace", "shl", "shr", "split",
+            "xor"),
+
+        HasBracketTypes = true,
+    };
+}