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hoa: add some error recovery

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* src/hoaparse/hoaparse.yy: Here.
* src/tgbatest/hoaparse.test: More tests.
This commit is contained in:
Alexandre Duret-Lutz 2014-11-21 17:43:17 +01:00
parent 4043ad2ccf
commit 1c8b58d69f
2 changed files with 93 additions and 7 deletions
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40
src/hoaparse/hoaparse.yy
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@ -144,6 +144,16 @@ hoa: header "--BODY--" body "--END--"
res.h->loc = @$;
YYACCEPT;
}
hoa: error "--END--"
{
res.h->loc = @$;
YYACCEPT;
}
hoa: error ENDOFFILE
{
res.h->loc = @$;
YYACCEPT;
}
hoa: ENDOFFILE { YYABORT; }
string_opt: | STRING
@ -173,12 +183,18 @@ header: format-version header-items
}
}
format-version: "HOA:" { res.h->loc = @1; } IDENTIFIER
{
if (*$3 != "v1")
error(@$, "unsupported version of the HOA format");
delete $3;
}
version: IDENTIFIER
{
if (*$1 != "v1")
error(@$, "unsupported version of the HOA format");
delete $1;
}
format-version: "HOA:" { res.h->loc = @1; } version
| error "HOA:"
{ error(@1, "ignoring leading garbage");
res.h->loc = @2; }
version
header-items: | header-items header-item
header-item: "States:" INT
@ -295,6 +311,7 @@ header-item: "States:" INT
" be ignored)");
delete $1;
}
| error
ap-names: | ap-names ap-name
ap-name: STRING
@ -500,6 +517,8 @@ state: state-name labeled-edges
res.cur_guard = res.guards.begin();
}
}
| error
state-name: "State:" state-label_opt checked-state-num string_opt acc-sig_opt
{
res.cur_state = $3;
@ -517,6 +536,11 @@ label: '[' label-expr ']'
res.cur_label = bdd_from_int($2);
bdd_delref($2);
}
| '[' error ']'
{
error(@$, "ignoring this invalid label");
res.cur_label = bddtrue;
}
state-label_opt: { res.has_state_label = false; }
| label { res.has_state_label = true;
res.state_label_loc = @1;
@ -547,6 +571,10 @@ acc-sig_opt:
res.ignore_acc_silent = true;
}
}
| '{' error '}'
{
error(@$, "ignoring this invalid acceptance set");
}
acc-sets:
{
$$ = spot::acc_cond::mark_t(0U);