[antlr-interest] 2 C-target questions
Corno Schraverus
antlr-interest at schraverus.com
Wed Oct 3 02:22:29 PDT 2007
Hi all,
I have 2 C-target questions, could anybody help me with that.
1)
If I have labeled a token (like this: myToken=IDENT ), how can I then get
the text of that token? (similar like myToken->getText() for C++ in ANTLR2).
I did find something about the GETTEXT macro while googling but I couldn't
get it to work.
2)
The following construct used to work in antlr2, in antlr3 it doesn't. The
variable x is placed in a nested block in the generated code and is
therefore not accessible outside that block.
Is this an error on my side, a bug in antlr or a bug in the
c-stringtemplate?
----
grammar test;
options
{
language=C;
}
test
:
{
char x;
}
(
'a' { x = 'a'; }
|
'b' { x = 'b'; }
)
;
---
This becomes:
----
{
{
char x; <----- declaration
}
{
------snip------
switch (alt1)
{
case 1:
{
MATCHT(4, &FOLLOW_4_in_test35);
{
x = 'a'; <------ failing assignment
}
}
break;
------snip-------
}
}
}
Greetings,
Corno
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