using --stdout and --full option does not output reflex_code_INITIAL

[haihuayang]

Hi,
when I use both --stdout --full option to generate the lexer, reflex does not output reflex_code_INITIAL. it looks like in function Pattern::assemble opt_f is empty when using --stdout option.
if (!opt_.f.empty())
{
if (opt_.o)
gencode_dfa(start);
else
export_code();
}

is it by design or a bug?

Thanks,

[genivia-inc]

There is no filename to save the source to, so it won't generate the source.

In other parts of the code there is a check for stdout.<extension> to generate the code. The <extension> determines what type of source to save. So it is potentially possible, but not done in the reflex tool. I don't remember the details why I could not get this done. But clearly this is not trivial, since there is also this code that checks if option --stdout is not used (options["stdout"].empty()) to generate the tables:

  if (options["matcher"].empty() && (!options["full"].empty() || !options["fast"].empty()) && options["tables_file"].empty() && options["stdout"].empty())
    write_banner("TABLES");

[genivia-inc]

This should be working now with the upcoming update v3.3.6.