String (PsiLiteralExpression expression) { String[] lines = getTextBlockLines(expression); if (lines == null) return null; int prefix = getTextBlockIndent(lines); StringBuilder sb = new StringBuilder(); for (int i = 0; i < lines.length; i++) { String line = lines[i]; if (!line.isEmpty()) { sb.append(trimTrailingWhitespaces(line.substring(prefix))); } if (i < lines.length - 1) { sb.append('\n'); } } return sb.toString(); }