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multistart: adjust computation of initial core and adjust reports

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Currently the core of the initial state is limited to the single rule
on $accept.

* src/lr0.c (generate_states): There may now be several rules on
$accept.

* src/graphviz.c (conclude_red): Recognize "final" transitions by the
fact that we reduce to "$accept".
* src/print.c (print_reduction): Likewise.
* src/print-xml.c (print_reduction): Likewise.
This commit is contained in:
Akim Demaille
2020-02-22 21:55:23 +01:00
parent 4646be7db4
commit 85ccc1bab3
5 changed files with 1173 additions and 17 deletions
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13
src/print-xml.c
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@@ -216,17 +216,18 @@ static void
print_reduction (FILE *out, int level, char const *lookahead,
rule *r, bool enabled)
{
if (r->number)
const bool final = r->lhs->symbol == acceptsymbol;
if (final)
xml_printf (out, level,
"<reduction symbol=\"%s\" rule=\"accept\" enabled=\"%s\"/>",
xml_escape (lookahead),
enabled ? "true" : "false");
else
xml_printf (out, level,
"<reduction symbol=\"%s\" rule=\"%d\" enabled=\"%s\"/>",
xml_escape (lookahead),
r->number,
enabled ? "true" : "false");
else
xml_printf (out, level,
"<reduction symbol=\"%s\" rule=\"accept\" enabled=\"%s\"/>",
xml_escape (lookahead),
enabled ? "true" : "false");
}