c_feature.test
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%{
#include <stdio.h>
%}
%code {
if(foo) {
}
}
%%
exp:
NUM {
$$ = f($3, $4);
@$.first_column = @1.first_column;
$result = $left + $<itype>1;
}
%%
----------------------------------------------------
[
["bison", [
["c", [
["delimiter", "%{"],
["macro", ["#include ", ["string", "<stdio.h>"]]],
["delimiter", "%}"]
]],
["keyword", "%code"],
["c", [
["delimiter", "{"],
["keyword", "if"], ["punctuation", "("], "foo", ["punctuation", ")"],
["punctuation", "{"], ["punctuation", "}"],
["delimiter", "}"]
]],
["punctuation", "%%"],
["property", "exp"], ["punctuation", ":"],
"\r\n\tNUM ",
["c", [
["delimiter", "{"],
["bison-variable", ["$$"]], ["operator", "="],
["function", "f"], ["punctuation", "("],
["bison-variable", ["$3"]], ["punctuation", ","],
["bison-variable", ["$4"]], ["punctuation", ")"], ["punctuation", ";"],
["bison-variable", ["@$"]], ["punctuation", "."], "first_column ", ["operator", "="],
["bison-variable", ["@1"]], ["punctuation", "."], "first_column", ["punctuation", ";"],
["bison-variable", ["$result"]], ["operator", "="],
["bison-variable", ["$left"]], ["operator", "+"],
["bison-variable", ["$", ["punctuation", "<"], "itype", ["punctuation", ">"], "1"]], ["punctuation", ";"],
["delimiter", "}"]
]],
["punctuation", "%%"]
]]
]
----------------------------------------------------
Checks for C inside Bison, along with special Bison variables.