diff --git a/CHANGELOG.md b/CHANGELOG.md
index 2e5be96..dc6d734 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -10,8 +10,11 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 ### Added
 
 - Support was added for
-  [MATLAB](https://www.mathworks.com/products/matlab.html) and
+  [MATLAB](https://www.mathworks.com/products/matlab.html)
+- Support was added for
   [Vim Script](https://vimdoc.sourceforge.net/htmldoc/usr_41.html).
+- Support was added for
+  [Powershell](https://learn.microsoft.com/en-us/powershell/).
 
 ## [0.9.0] - 2024-08-08
 
diff --git a/SUPPORTED_LANGUAGES.md b/SUPPORTED_LANGUAGES.md
index 8e8584e..23be10f 100644
--- a/SUPPORTED_LANGUAGES.md
+++ b/SUPPORTED_LANGUAGES.md
@@ -1,6 +1,6 @@
 # Supported Languages
 
-44 languages are currently supported.
+45 languages are currently supported.
 
 | File type         | Extension                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                           | Supported comments |
 | ----------------- | ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- | ------------------ |
@@ -30,6 +30,7 @@
 | Objective-C       | `.m`, `.h`                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          | `//`, `/* */`      |
 | PHP               | `.php`, `.aw`, `.ctp`, `.fcgi`, `.inc`, `.php3`, `.php4`, `.php5`, `.phps`, `.phpt`                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                 | `#`, `//`, `/* */` |
 | Perl              | `.pl`, `.al`, `.cgi`, `.fcgi`, `.perl`, `.ph`, `.plx`, `.pm`, `.psgi`, `.t`                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                         | `#`, `= =cut`      |
+| PowerShell        | `.ps1`, `.psd1`, `.psm1`                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            | `#`, `<# #>`       |
 | Puppet            | `.pp`                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                               | `#`                |
 | Python            | `.py`, `.cgi`, `.fcgi`, `.gyp`, `.gypi`, `.lmi`, `.py3`, `.pyde`, `.pyi`, `.pyp`, `.pyt`, `.pyw`, `.rpy`, `.spec`, `.tac`, `.wsgi`, `.xpy`                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          | `#`, `""" """`     |
 | R                 | `.r`, `.rd`, `.rsx`                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                 | `#`                |
diff --git a/internal/scanner/languages.go b/internal/scanner/languages.go
index e716f1e..58ace59 100644
--- a/internal/scanner/languages.go
+++ b/internal/scanner/languages.go
@@ -32,10 +32,12 @@ type MultilineCommentConfig struct {
 }
 
 var (
-	// BackslashEscape indicates characters can be escaped by a backslash.
-	BackslashEscape = "backslash"
-	// NoEscape indicates characters cannot be escaped.
+	// CharEscape indicates the following character is the escape character.
+	CharEscape = "character"
+
+	// NoEscape indicates characters cannot be escaped. This is the default.
 	NoEscape = "none"
+
 	// DoubleEscape indicates that strings can be escaped with double characters.
 	DoubleEscape = "double"
 )
@@ -56,18 +58,12 @@ type Config struct {
 
 type escapeFunc func(s *CommentScanner, st *stateString) ([]rune, error)
 
-var escapeFuncs = map[string]escapeFunc{
-	BackslashEscape: backslashEscape,
-	NoEscape:        noEscape,
-	DoubleEscape:    doubleEscape,
-}
-
 func noEscape(_ *CommentScanner, _ *stateString) ([]rune, error) {
 	return nil, nil
 }
 
-func backslashEscape(s *CommentScanner, st *stateString) ([]rune, error) {
-	b := append([]rune{'\\'}, s.config.Strings[st.index].End...)
+func charEscape(c rune, s *CommentScanner, st *stateString) ([]rune, error) {
+	b := append([]rune{c}, s.config.Strings[st.index].End...)
 	eq, err := s.peekEqual(b)
 	if err != nil {
 		return nil, err
diff --git a/internal/scanner/languages.yml b/internal/scanner/languages.yml
index 2ae6a09..90d1c41 100644
--- a/internal/scanner/languages.yml
+++ b/internal/scanner/languages.yml
@@ -33,10 +33,10 @@ C:
   strings:
     - start: '"'
       end: '"'
-      escape: backslash
+      escape: character \
     - start: "'"
       end: "'"
-      escape: backslash
+      escape: character \
 C++:
   line_comment_start: ["//"]
   multiline_comment:
@@ -45,10 +45,10 @@ C++:
   strings:
     - start: '"'
       end: '"'
-      escape: backslash
+      escape: character \
     - start: "'"
       end: "'"
-      escape: backslash
+      escape: character \
 C#:
   line_comment_start: ["//"]
   multiline_comment:
@@ -57,16 +57,16 @@ C#:
   strings:
     - start: '"'
       end: '"'
-      escape: backslash
+      escape: character \
     - start: "'"
       end: "'"
-      escape: backslash
+      escape: character \
 Clojure:
   line_comment_start: [";"]
   strings:
     - start: '"'
       end: '"'
-      escape: backslash
+      escape: character \
 CoffeeScript:
   line_comment_start: ["#"]
   multiline_comment:
@@ -75,34 +75,34 @@ CoffeeScript:
   strings:
     - start: '"'
       end: '"'
-      escape: backslash
+      escape: character \
     - start: "'"
       end: "'"
-      escape: backslash
+      escape: character \
 Dockerfile:
   line_comment_start: ["#"]
   strings:
     - start: '"'
       end: '"'
-      escape: backslash
+      escape: character \
     - start: "'"
       end: "'"
-      escape: backslash
+      escape: character \
 Emacs Lisp:
   line_comment_start: [";"]
   strings:
     - start: '"'
       end: '"'
-      escape: backslash
+      escape: character \
 Erlang:
   line_comment_start: ["%"]
   strings:
     - start: '"'
       end: '"'
-      escape: backslash
+      escape: character \
     - start: "'"
       end: "'"
-      escape: backslash
+      escape: character \
 Fortran:
   line_comment_start: ["!"]
   strings:
@@ -129,11 +129,11 @@ Go:
   strings:
     - start: '"'
       end: '"'
-      escape: backslash
+      escape: character \
     # Rune
     - start: "'"
       end: "'"
-      escape: backslash
+      escape: character \
     # Raw strings
     - start: "`"
       end: "`"
@@ -145,7 +145,7 @@ Go Module:
   strings:
     - start: '"'
       end: '"'
-      escape: backslash
+      escape: character \
     # Raw strings
     - start: "`"
       end: "`"
@@ -158,13 +158,13 @@ Groovy:
   strings:
     - start: '"'
       end: '"'
-      escape: backslash
+      escape: character \
     - start: "'"
       end: "'"
-      escape: backslash
+      escape: character \
     - start: "'''"
       end: "'''"
-      escape: backslash
+      escape: character \
 Haskell:
   line_comment_start: ["--"]
   multiline_comment:
@@ -173,10 +173,10 @@ Haskell:
   strings:
     - start: '"'
       end: '"'
-      escape: backslash
+      escape: character \
     - start: "'"
       end: "'"
-      escape: backslash
+      escape: character \
 HTML:
   multiline_comment:
     start: "<!--"
@@ -184,10 +184,10 @@ HTML:
   strings:
     - start: '"'
       end: '"'
-      escape: backslash
+      escape: character \
     - start: "'"
       end: "'"
-      escape: backslash
+      escape: character \
 Java:
   line_comment_start: ["//"]
   multiline_comment:
@@ -196,10 +196,10 @@ Java:
   strings:
     - start: '"'
       end: '"'
-      escape: backslash
+      escape: character \
     - start: "'"
       end: "'"
-      escape: backslash
+      escape: character \
 JavaScript:
   line_comment_start: ["//"]
   multiline_comment:
@@ -208,10 +208,10 @@ JavaScript:
   strings:
     - start: '"'
       end: '"'
-      escape: backslash
+      escape: character \
     - start: "'"
       end: "'"
-      escape: backslash
+      escape: character \
 # NOTE: Some JSON files support JS comments (e.g. tsconfig.json)
 # NOTE: HOCON format allows # comments (github.com/lightbend/config/blob/master/HOCON.md)
 JSON:
@@ -222,10 +222,10 @@ JSON:
   strings:
     - start: '"'
       end: '"'
-      escape: backslash
+      escape: character \
     - start: "'"
       end: "'"
-      escape: backslash
+      escape: character \
 Kotlin:
   line_comment_start: ["//"]
   multiline_comment:
@@ -234,10 +234,10 @@ Kotlin:
   strings:
     - start: '"'
       end: '"'
-      escape: backslash
+      escape: character \
     - start: "'"
       end: "'"
-      escape: backslash
+      escape: character \
 Lua:
   line_comment_start: ["--"]
   multiline_comment:
@@ -246,19 +246,19 @@ Lua:
   strings:
     - start: '"'
       end: '"'
-      escape: backslash
+      escape: character \
     - start: "'"
       end: "'"
-      escape: backslash
+      escape: character \
 Makefile:
   line_comment_start: ["#"]
   strings:
     - start: '"'
       end: '"'
-      escape: backslash
+      escape: character \
     - start: "'"
       end: "'"
-      escape: backslash
+      escape: character \
 MATLAB:
   line_comment_start: ["%"]
   multiline_comment:
@@ -268,11 +268,11 @@ MATLAB:
     # Strings
     - start: '"'
       end: '"'
-      escape: backslash
+      escape: character \
     # Character vectors
     - start: "'"
       end: "'"
-      escape: backslash
+      escape: character \
 Objective-C:
   line_comment_start: ["//"]
   multiline_comment:
@@ -281,10 +281,10 @@ Objective-C:
   strings:
     - start: '"'
       end: '"'
-      escape: backslash
+      escape: character \
     - start: "'"
       end: "'"
-      escape: backslash
+      escape: character \
 Perl:
   line_comment_start: ["#"]
   multiline_comment:
@@ -295,10 +295,10 @@ Perl:
     # TODO(#357): Perl supports strings with any delimiter.
     - start: '"'
       end: '"'
-      escape: backslash
+      escape: character \
     - start: "'"
       end: "'"
-      escape: backslash
+      escape: character \
 PHP:
   line_comment_start: ["#", "//"]
   multiline_comment:
@@ -307,19 +307,31 @@ PHP:
   strings:
     - start: '"'
       end: '"'
-      escape: backslash
+      escape: character \
     - start: "'"
       end: "'"
-      escape: backslash
+      escape: character \
+PowerShell:
+  line_comment_start: ["#"]
+  multiline_comment:
+    start: "<#"
+    end: "#>"
+  strings:
+    - start: '"'
+      end: '"'
+      escape: character `
+    - start: "'"
+      end: "'"
+      escape: character `
 Puppet:
   line_comment_start: ["#"]
   strings:
     - start: '"'
       end: '"'
-      escape: backslash
+      escape: character \
     - start: "'"
       end: "'"
-      escape: backslash
+      escape: character \
 Python:
   line_comment_start: ["#"]
   multiline_comment:
@@ -328,19 +340,19 @@ Python:
   strings:
     - start: '"'
       end: '"'
-      escape: backslash
+      escape: character \
     - start: "'"
       end: "'"
-      escape: backslash
+      escape: character \
 R:
   line_comment_start: ["#"]
   strings:
     - start: '"'
       end: '"'
-      escape: backslash
+      escape: character \
     - start: "'"
       end: "'"
-      escape: backslash
+      escape: character \
 Ruby:
   line_comment_start: ["#"]
   multiline_comment:
@@ -350,13 +362,13 @@ Ruby:
   strings:
     - start: '"'
       end: '"'
-      escape: backslash
+      escape: character \
     - start: "'"
       end: "'"
-      escape: backslash
+      escape: character \
     - start: "%{"
       end: "}"
-      escape: backslash
+      escape: character \
 Rust:
   line_comment_start: ["//"]
   multiline_comment:
@@ -365,10 +377,10 @@ Rust:
   strings:
     - start: '"'
       end: '"'
-      escape: backslash
+      escape: character \
     - start: "'"
       end: "'"
-      escape: backslash
+      escape: character \
 Scala:
   line_comment_start: ["//"]
   multiline_comment:
@@ -377,19 +389,19 @@ Scala:
   strings:
     - start: '"'
       end: '"'
-      escape: backslash
+      escape: character \
     - start: "'"
       end: "'"
-      escape: backslash
+      escape: character \
 Shell:
   line_comment_start: ["#"]
   strings:
     - start: '"'
       end: '"'
-      escape: backslash
+      escape: character \
     - start: "'"
       end: "'"
-      escape: backslash
+      escape: character \
 Swift:
   line_comment_start: ["//"]
   multiline_comment:
@@ -398,7 +410,7 @@ Swift:
   strings:
     - start: '"'
       end: '"'
-      escape: backslash
+      escape: character \
 SQL:
   line_comment_start: ["--"]
   multiline_comment:
@@ -416,10 +428,10 @@ TOML:
   strings:
     - start: '"'
       end: '"'
-      escape: backslash
+      escape: character \
     - start: "'"
       end: "'"
-      escape: backslash
+      escape: character \
 TypeScript:
   line_comment_start: ["//"]
   multiline_comment:
@@ -428,10 +440,10 @@ TypeScript:
   strings:
     - start: '"'
       end: '"'
-      escape: backslash
+      escape: character \
     - start: "'"
       end: "'"
-      escape: backslash
+      escape: character \
 TeX:
   line_comment_start: ["%"]
 Unix Assembly:
@@ -451,22 +463,22 @@ Vim Script:
   strings:
     - start: '"'
       end: '"'
-      escape: backslash
+      escape: character \
     - start: "'"
       end: "'"
-      escape: backslash
+      escape: character \
 VBA:
   line_comment_start: ["'"]
   strings:
     - start: '"'
       end: '"'
-      escape: backslash
+      escape: character \
 Visual Basic .NET:
   line_comment_start: ["'"]
   strings:
     - start: '"'
       end: '"'
-      escape: backslash
+      escape: character \
 XML:
   multiline_comment:
     start: "<!--"
@@ -474,16 +486,16 @@ XML:
   strings:
     - start: '"'
       end: '"'
-      escape: backslash
+      escape: character \
     - start: "'"
       end: "'"
-      escape: backslash
+      escape: character \
 YAML:
   line_comment_start: ["#"]
   strings:
     - start: '"'
       end: '"'
-      escape: backslash
+      escape: character \
     - start: "'"
       end: "'"
-      escape: backslash
+      escape: character \
diff --git a/internal/scanner/scanner.go b/internal/scanner/scanner.go
index 9619b0d..1fe9b2d 100644
--- a/internal/scanner/scanner.go
+++ b/internal/scanner/scanner.go
@@ -60,11 +60,32 @@ func convertConfig(c *Config) *config {
 	c2.MultilineCommentStart = []rune(c.MultilineComment.Start)
 	c2.MultilineCommentEnd = []rune(c.MultilineComment.End)
 	c2.MultilineCommentAtLineStart = c.MultilineComment.AtLineStart
+
+	// TODO(#460): Generate code for language support.
 	for i := range c.Strings {
+		var eFunc escapeFunc
+		switch {
+		case strings.HasPrefix(c.Strings[i].Escape, CharEscape):
+			parts := strings.Split(c.Strings[i].Escape, " ")
+			if len(parts[1]) != 1 {
+				panic(fmt.Sprintf("invalid escape character %q", parts[1]))
+			}
+			eRune := []rune(parts[1])[0]
+			eFunc = func(s *CommentScanner, st *stateString) ([]rune, error) {
+				return charEscape(eRune, s, st)
+			}
+		case c.Strings[i].Escape == DoubleEscape:
+			eFunc = doubleEscape
+		case c.Strings[i].Escape == "" || c.Strings[i].Escape == NoEscape:
+			eFunc = noEscape
+		default:
+			panic(fmt.Sprintf("invalid escape %q", c.Strings[i].Escape))
+		}
+
 		c2.Strings = append(c2.Strings, stringConfig{
 			Start:      []rune(c.Strings[i].Start),
 			End:        []rune(c.Strings[i].End),
-			EscapeFunc: escapeFuncs[c.Strings[i].Escape],
+			EscapeFunc: eFunc,
 		})
 	}
 	return &c2
diff --git a/internal/scanner/scanner_test.go b/internal/scanner/scanner_test.go
index 1b53b3c..5482d1b 100644
--- a/internal/scanner/scanner_test.go
+++ b/internal/scanner/scanner_test.go
@@ -979,6 +979,117 @@ var scannerTestCases = []*struct {
 		},
 	},
 
+	// PowerShell
+	{
+		name: "line_comments.ps1",
+		src: `# file comment
+
+			# TODO is a function.
+			function TODO {
+				Write-Output "TODO" # Random comment
+			}`,
+		config: "PowerShell",
+		comments: []struct {
+			text string
+			line int
+		}{
+			{
+				text: "# file comment",
+				line: 1,
+			},
+			{
+				text: "# TODO is a function.",
+				line: 3,
+			},
+			{
+				text: "# Random comment",
+				line: 5,
+			},
+		},
+	},
+	{
+		name: "comments_in_string.ps1",
+		src: `# file comment
+
+			# TODO is a function.
+			function TODO {
+				Write-Output "# TODO"
+				Write-Output '# TODO'
+			}`,
+		config: "PowerShell",
+		comments: []struct {
+			text string
+			line int
+		}{
+			{
+				text: "# file comment",
+				line: 1,
+			},
+			{
+				text: "# TODO is a function.",
+				line: 3,
+			},
+		},
+	},
+	{
+		name: "escaped_string.ps1",
+		src: `# file comment
+
+			# TODO is a function.
+			function TODO {
+				Write-Output "` + "`" + `"# Random comment"
+				Write-Output '` + "`" + `'# Random comment'
+			}`,
+		config: "PowerShell",
+		comments: []struct {
+			text string
+			line int
+		}{
+			{
+				text: "# file comment",
+				line: 1,
+			},
+			{
+				text: "# TODO is a function.",
+				line: 3,
+			},
+		},
+	},
+	{
+		name: "multi_line.ps1",
+		src: `# file comment
+
+			<#
+			TODO is a function.
+			#>
+			function TODO {
+				Write-Output "TODO" # Random comment
+			}
+			<# extra comment #>`,
+		config: "PowerShell",
+		comments: []struct {
+			text string
+			line int
+		}{
+			{
+				text: "# file comment",
+				line: 1,
+			},
+			{
+				text: "<#\n\t\t\tTODO is a function.\n\t\t\t#>",
+				line: 3,
+			},
+			{
+				text: "# Random comment",
+				line: 7,
+			},
+			{
+				text: "<# extra comment #>",
+				line: 9,
+			},
+		},
+	},
+
 	// Puppet
 	{
 		name: "line_comments.pp",
@@ -2180,13 +2291,13 @@ End Module`,
 			},
 			// TODO(#1540): Read this closed string as a comment.
 			// {
-			// 	text: "\" TODO is a function.\"",
-			// 	line: 3,
+			//	text: "\" TODO is a function.\"",
+			//	line: 3,
 			// },
 			// TODO(#1540): Read this closed string as a comment.
 			// {
-			// 	text: "\" Random comment\"",
-			// 	line: 5,
+			//	text: "\" Random comment\"",
+			//	line: 5,
 			// },
 			{
 				text: "\" extra comment",