Hi all,
I am trying to use yy_scan_string on a program which also uses buffer
state stacks ({yypush, yypop}_buffer_state). According to the
documentation, yy_scan_string switches current buffer so a string is
parsed, but my desired behaviour is to get back to parsing the file
(using yypop?) once the string has been parsed.
I have seen some references on the web to using
yypush_buffer_state(yy_parse_string(...))
but I have noticed the inner yy_parse_string subsitutes the current
buffer state, which then gets pushed, and the original state gets lost
(no way to get back to file parsing).
The solution I have found is a little bit weird:
yypush_buffer_state (YY_CURRENT_BUFFER);
yy_scan_string (m.definition.c_str());
Thus first the *current* state is pushed (effectively creating a copy),
but then the yy_scan_string changes current buffer to the string.
It works, but just wanted to ask if somebody knows a better way to do
it.
Thanks!
Carlos
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