3 files changed, 23 insertions, 0 deletions
diff --git a/core/string/ustring.cpp b/core/string/ustring.cpp
index ac8e2ece12..779270fe47 100644
--- a/core/string/ustring.cpp
+++ b/core/string/ustring.cpp
@@ -3507,6 +3507,27 @@ char32_t String::unicode_at(int p_idx) const {
 	return operator[](p_idx);
 }
 
+String String::indent(const String &p_prefix) const {
+	String new_string;
+	int line_start = 0;
+
+	for (int i = 0; i < length(); i++) {
+		const char32_t c = operator[](i);
+		if (c == '\n') {
+			if (i == line_start) {
+				new_string += c; // Leave empty lines empty.
+			} else {
+				new_string += p_prefix + substr(line_start, i - line_start + 1);
+			}
+			line_start = i + 1;
+		}
+	}
+	if (line_start != length()) {
+		new_string += p_prefix + substr(line_start);
+	}
+	return new_string;
+}
+
 String String::dedent() const {
 	String new_string;
 	String indent;
diff --git a/core/string/ustring.h b/core/string/ustring.h
index 396c996050..780515c12e 100644
--- a/core/string/ustring.h
+++ b/core/string/ustring.h
@@ -356,6 +356,7 @@ public:
 
 	String left(int p_pos) const;
 	String right(int p_pos) const;
+	String indent(const String &p_prefix) const;
 	String dedent() const;
 	String strip_edges(bool left = true, bool right = true) const;
 	String strip_escapes() const;
diff --git a/core/variant/variant_call.cpp b/core/variant/variant_call.cpp
index 82f547e78c..51b9119933 100644
--- a/core/variant/variant_call.cpp
+++ b/core/variant/variant_call.cpp
@@ -1411,6 +1411,7 @@ static void _register_variant_builtin_methods() {
 	bind_method(String, get_basename, sarray(), varray());
 	bind_method(String, plus_file, sarray("file"), varray());
 	bind_method(String, unicode_at, sarray("at"), varray());
+	bind_method(String, indent, sarray("prefix"), varray());
 	bind_method(String, dedent, sarray(), varray());
 	bind_method(String, hash, sarray(), varray());
 	bind_method(String, md5_text, sarray(), varray());