in src/main/java/org/apache/sling/scripting/javascript/io/EspReader.java [732:746]
private void startWrite(String startString) throws IOException {
// inject the out.write( part and the initial string
if (startString != null && startString.length() > 0) {
doVerbatim(startString);
}
doVerbatim("out.write(");
// if out is not set yet, we also acquire it now setting it
// globally
if (outUndefined) {
doVerbatim(outInitStatement);
outUndefined = false;
}
}