Ok, I managed to get this to work, and ultimately it was quite easy. First you
do this in flex:
'.* { yylval.s = g_string_new(strndup(yytext + 1, yyleng - 1)); return
QUOTEREM; } // short form in MS
!.* { yylval.s = g_string_new(strndup(yytext + 1, yyleng - 1)); return
BANGREM; } // later MS allow bang as well
Then in your bison you do this:
statements:
statement
{
$$ = g_list_prepend(NULL, $1);
}
|
statement ':' statements
{
$$ = g_list_prepend($3, $1);
}
|
statements QUOTEREM
{
$$ = g_list_prepend($1, NULL);
}
|
statements BANGREM
{
$$ = g_list_prepend($1, NULL);
}
;
and finally:
|
REM
{
statement_t *new = make_statement(REM);
new->parms.rem = yylval.s;
$$ = new;
}
|
QUOTEREM
{
statement_t *new = make_statement(QUOTEREM);
new->parms.rem = yylval.s;
$$ = new;
}
|
BANGREM
{
statement_t *new = make_statement(BANGREM);
new->parms.rem = yylval.s;
$$ = new;
}
Presto! More work than I would have liked, but doesn't really upset the syntax
too badly and is still self-documented to a good degree.
