multi-line string literals

compiler/lexer/lexer.odin

@@ -277,6 +277,34 @@ lex :: proc(
 				)
 				append_token(&stream, source_file, .Invalid, start, cursor, diagnostic=id)
 			}
+		case '`':
+			// Multi-line string: each line is marked with a leading '`'; raw
+			// content (no escapes) runs to end of line. Consecutive backtick
+			// lines collapse into one token; the trailing '\n' is left to
+			// become the statement-terminating Newline.
+			start := cursor
+			content_end := cursor
+			for {
+				cursor += 1 // skip backtick
+				for cursor < len(bytes) && bytes[cursor] != '\n' {
+					cursor += 1
+				}
+				content_end = cursor
+				look := cursor
+				if look < len(bytes) && bytes[look] == '\n' {
+					look += 1
+				}
+				for look < len(bytes) && (bytes[look] == ' ' || bytes[look] == '\t') {
+					look += 1
+				}
+				if look < len(bytes) && bytes[look] == '`' {
+					cursor = look
+					continue
+				}
+				break
+			}
+			cursor = content_end
+			append_token(&stream, source_file, .Multiline_String, start, content_end)
 		case ';':
 			append_token(&stream, source_file, .Semicolon, cursor, cursor+1)
 			cursor += 1