Method write_section_begin

src/reflex.cpp:2340–2347

Write %%begin code to lex.yy.cpp

/// Write %%begin code to lex.yy.cpp
void Reflex::write_section_begin()
{
  if (!options["flex"].empty())
    *out <<
      "    YY_USER_INIT\n";
  if (!section_begin.empty())
    write_code(section_begin);
}

/// Write perf_report code to lex.yy.cpp
void Reflex::write_perf_report()