protected JRExpression getLineExpression(String line) {
JRExpression expression = null;
int exprIdStart = line.indexOf(SOURCE_EXPRESSION_ID_START);
if (exprIdStart >= 0) {
exprIdStart += SOURCE_EXPRESSION_ID_START_LENGTH;
int exprIdEnd = line.indexOf('$', exprIdStart);
if (exprIdEnd >= 0) {
try {
int exprId = Integer.parseInt(line.substring(exprIdStart, exprIdEnd));
expression = sourceTask.getExpression(exprId);
} catch (NumberFormatException e) {
// ignore
}
}
}
return expression;
}
