// A Bison parser, made by GNU Bison 3.8.2.
// Skeleton implementation for Bison LALR(1) parsers in C++
// Copyright (C) 2002-2015, 2018-2021 Free Software Foundation, Inc.
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
// You should have received a copy of the GNU General Public License
// along with this program. If not, see .
// As a special exception, you may create a larger work that contains
// part or all of the Bison parser skeleton and distribute that work
// under terms of your choice, so long as that work isn't itself a
// parser generator using the skeleton or a modified version thereof
// as a parser skeleton. Alternatively, if you modify or redistribute
// the parser skeleton itself, you may (at your option) remove this
// special exception, which will cause the skeleton and the resulting
// Bison output files to be licensed under the GNU General Public
// License without this special exception.
// This special exception was added by the Free Software Foundation in
// version 2.2 of Bison.
// DO NOT RELY ON FEATURES THAT ARE NOT DOCUMENTED in the manual,
// especially those whose name start with YY_ or yy_. They are
// private implementation details that can be changed or removed.
// Take the name prefix into account.
#define yylex evallex
#include "parser.h"
// Unqualified %code blocks.
#line 33 "parser.yy"
# include "eval_context.h"
#line 52 "parser.cc"
#ifndef YY_
# if defined YYENABLE_NLS && YYENABLE_NLS
# if ENABLE_NLS
# include // FIXME: INFRINGES ON USER NAME SPACE.
# define YY_(msgid) dgettext ("bison-runtime", msgid)
# endif
# endif
# ifndef YY_
# define YY_(msgid) msgid
# endif
#endif
// Whether we are compiled with exception support.
#ifndef YY_EXCEPTIONS
# if defined __GNUC__ && !defined __EXCEPTIONS
# define YY_EXCEPTIONS 0
# else
# define YY_EXCEPTIONS 1
# endif
#endif
#define YYRHSLOC(Rhs, K) ((Rhs)[K].location)
/* YYLLOC_DEFAULT -- Set CURRENT to span from RHS[1] to RHS[N].
If N is 0, then set CURRENT to the empty location which ends
the previous symbol: RHS[0] (always defined). */
# ifndef YYLLOC_DEFAULT
# define YYLLOC_DEFAULT(Current, Rhs, N) \
do \
if (N) \
{ \
(Current).begin = YYRHSLOC (Rhs, 1).begin; \
(Current).end = YYRHSLOC (Rhs, N).end; \
} \
else \
{ \
(Current).begin = (Current).end = YYRHSLOC (Rhs, 0).end; \
} \
while (false)
# endif
// Enable debugging if requested.
#if EVALDEBUG
// A pseudo ostream that takes yydebug_ into account.
# define YYCDEBUG if (yydebug_) (*yycdebug_)
# define YY_SYMBOL_PRINT(Title, Symbol) \
do { \
if (yydebug_) \
{ \
*yycdebug_ << Title << ' '; \
yy_print_ (*yycdebug_, Symbol); \
*yycdebug_ << '\n'; \
} \
} while (false)
# define YY_REDUCE_PRINT(Rule) \
do { \
if (yydebug_) \
yy_reduce_print_ (Rule); \
} while (false)
# define YY_STACK_PRINT() \
do { \
if (yydebug_) \
yy_stack_print_ (); \
} while (false)
#else // !EVALDEBUG
# define YYCDEBUG if (false) std::cerr
# define YY_SYMBOL_PRINT(Title, Symbol) YY_USE (Symbol)
# define YY_REDUCE_PRINT(Rule) static_cast (0)
# define YY_STACK_PRINT() static_cast (0)
#endif // !EVALDEBUG
#define yyerrok (yyerrstatus_ = 0)
#define yyclearin (yyla.clear ())
#define YYACCEPT goto yyacceptlab
#define YYABORT goto yyabortlab
#define YYERROR goto yyerrorlab
#define YYRECOVERING() (!!yyerrstatus_)
#line 14 "parser.yy"
namespace isc { namespace eval {
#line 145 "parser.cc"
/// Build a parser object.
EvalParser::EvalParser (EvalContext& ctx_yyarg)
#if EVALDEBUG
: yydebug_ (false),
yycdebug_ (&std::cerr),
#else
:
#endif
ctx (ctx_yyarg)
{}
EvalParser::~EvalParser ()
{}
EvalParser::syntax_error::~syntax_error () YY_NOEXCEPT YY_NOTHROW
{}
/*---------.
| symbol. |
`---------*/
// by_state.
EvalParser::by_state::by_state () YY_NOEXCEPT
: state (empty_state)
{}
EvalParser::by_state::by_state (const by_state& that) YY_NOEXCEPT
: state (that.state)
{}
void
EvalParser::by_state::clear () YY_NOEXCEPT
{
state = empty_state;
}
void
EvalParser::by_state::move (by_state& that)
{
state = that.state;
that.clear ();
}
EvalParser::by_state::by_state (state_type s) YY_NOEXCEPT
: state (s)
{}
EvalParser::symbol_kind_type
EvalParser::by_state::kind () const YY_NOEXCEPT
{
if (state == empty_state)
return symbol_kind::S_YYEMPTY;
else
return YY_CAST (symbol_kind_type, yystos_[+state]);
}
EvalParser::stack_symbol_type::stack_symbol_type ()
{}
EvalParser::stack_symbol_type::stack_symbol_type (YY_RVREF (stack_symbol_type) that)
: super_type (YY_MOVE (that.state), YY_MOVE (that.location))
{
switch (that.kind ())
{
case symbol_kind::S_option_repr_type: // option_repr_type
value.YY_MOVE_OR_COPY< TokenOption::RepresentationType > (YY_MOVE (that.value));
break;
case symbol_kind::S_pkt4_field: // pkt4_field
value.YY_MOVE_OR_COPY< TokenPkt4::FieldType > (YY_MOVE (that.value));
break;
case symbol_kind::S_pkt6_field: // pkt6_field
value.YY_MOVE_OR_COPY< TokenPkt6::FieldType > (YY_MOVE (that.value));
break;
case symbol_kind::S_pkt_metadata: // pkt_metadata
value.YY_MOVE_OR_COPY< TokenPkt::MetadataType > (YY_MOVE (that.value));
break;
case symbol_kind::S_relay6_field: // relay6_field
value.YY_MOVE_OR_COPY< TokenRelay6Field::FieldType > (YY_MOVE (that.value));
break;
case symbol_kind::S_nest_level: // nest_level
value.YY_MOVE_OR_COPY< int8_t > (YY_MOVE (that.value));
break;
case symbol_kind::S_STRING: // "constant string"
case symbol_kind::S_INTEGER: // "integer"
case symbol_kind::S_HEXSTRING: // "constant hexstring"
case symbol_kind::S_OPTION_NAME: // "option name"
case symbol_kind::S_IP_ADDRESS: // "ip address"
value.YY_MOVE_OR_COPY< std::string > (YY_MOVE (that.value));
break;
case symbol_kind::S_option_code: // option_code
case symbol_kind::S_sub_option_code: // sub_option_code
value.YY_MOVE_OR_COPY< uint16_t > (YY_MOVE (that.value));
break;
case symbol_kind::S_integer_expr: // integer_expr
case symbol_kind::S_enterprise_id: // enterprise_id
value.YY_MOVE_OR_COPY< uint32_t > (YY_MOVE (that.value));
break;
default:
break;
}
#if 201103L <= YY_CPLUSPLUS
// that is emptied.
that.state = empty_state;
#endif
}
EvalParser::stack_symbol_type::stack_symbol_type (state_type s, YY_MOVE_REF (symbol_type) that)
: super_type (s, YY_MOVE (that.location))
{
switch (that.kind ())
{
case symbol_kind::S_option_repr_type: // option_repr_type
value.move< TokenOption::RepresentationType > (YY_MOVE (that.value));
break;
case symbol_kind::S_pkt4_field: // pkt4_field
value.move< TokenPkt4::FieldType > (YY_MOVE (that.value));
break;
case symbol_kind::S_pkt6_field: // pkt6_field
value.move< TokenPkt6::FieldType > (YY_MOVE (that.value));
break;
case symbol_kind::S_pkt_metadata: // pkt_metadata
value.move< TokenPkt::MetadataType > (YY_MOVE (that.value));
break;
case symbol_kind::S_relay6_field: // relay6_field
value.move< TokenRelay6Field::FieldType > (YY_MOVE (that.value));
break;
case symbol_kind::S_nest_level: // nest_level
value.move< int8_t > (YY_MOVE (that.value));
break;
case symbol_kind::S_STRING: // "constant string"
case symbol_kind::S_INTEGER: // "integer"
case symbol_kind::S_HEXSTRING: // "constant hexstring"
case symbol_kind::S_OPTION_NAME: // "option name"
case symbol_kind::S_IP_ADDRESS: // "ip address"
value.move< std::string > (YY_MOVE (that.value));
break;
case symbol_kind::S_option_code: // option_code
case symbol_kind::S_sub_option_code: // sub_option_code
value.move< uint16_t > (YY_MOVE (that.value));
break;
case symbol_kind::S_integer_expr: // integer_expr
case symbol_kind::S_enterprise_id: // enterprise_id
value.move< uint32_t > (YY_MOVE (that.value));
break;
default:
break;
}
// that is emptied.
that.kind_ = symbol_kind::S_YYEMPTY;
}
#if YY_CPLUSPLUS < 201103L
EvalParser::stack_symbol_type&
EvalParser::stack_symbol_type::operator= (const stack_symbol_type& that)
{
state = that.state;
switch (that.kind ())
{
case symbol_kind::S_option_repr_type: // option_repr_type
value.copy< TokenOption::RepresentationType > (that.value);
break;
case symbol_kind::S_pkt4_field: // pkt4_field
value.copy< TokenPkt4::FieldType > (that.value);
break;
case symbol_kind::S_pkt6_field: // pkt6_field
value.copy< TokenPkt6::FieldType > (that.value);
break;
case symbol_kind::S_pkt_metadata: // pkt_metadata
value.copy< TokenPkt::MetadataType > (that.value);
break;
case symbol_kind::S_relay6_field: // relay6_field
value.copy< TokenRelay6Field::FieldType > (that.value);
break;
case symbol_kind::S_nest_level: // nest_level
value.copy< int8_t > (that.value);
break;
case symbol_kind::S_STRING: // "constant string"
case symbol_kind::S_INTEGER: // "integer"
case symbol_kind::S_HEXSTRING: // "constant hexstring"
case symbol_kind::S_OPTION_NAME: // "option name"
case symbol_kind::S_IP_ADDRESS: // "ip address"
value.copy< std::string > (that.value);
break;
case symbol_kind::S_option_code: // option_code
case symbol_kind::S_sub_option_code: // sub_option_code
value.copy< uint16_t > (that.value);
break;
case symbol_kind::S_integer_expr: // integer_expr
case symbol_kind::S_enterprise_id: // enterprise_id
value.copy< uint32_t > (that.value);
break;
default:
break;
}
location = that.location;
return *this;
}
EvalParser::stack_symbol_type&
EvalParser::stack_symbol_type::operator= (stack_symbol_type& that)
{
state = that.state;
switch (that.kind ())
{
case symbol_kind::S_option_repr_type: // option_repr_type
value.move< TokenOption::RepresentationType > (that.value);
break;
case symbol_kind::S_pkt4_field: // pkt4_field
value.move< TokenPkt4::FieldType > (that.value);
break;
case symbol_kind::S_pkt6_field: // pkt6_field
value.move< TokenPkt6::FieldType > (that.value);
break;
case symbol_kind::S_pkt_metadata: // pkt_metadata
value.move< TokenPkt::MetadataType > (that.value);
break;
case symbol_kind::S_relay6_field: // relay6_field
value.move< TokenRelay6Field::FieldType > (that.value);
break;
case symbol_kind::S_nest_level: // nest_level
value.move< int8_t > (that.value);
break;
case symbol_kind::S_STRING: // "constant string"
case symbol_kind::S_INTEGER: // "integer"
case symbol_kind::S_HEXSTRING: // "constant hexstring"
case symbol_kind::S_OPTION_NAME: // "option name"
case symbol_kind::S_IP_ADDRESS: // "ip address"
value.move< std::string > (that.value);
break;
case symbol_kind::S_option_code: // option_code
case symbol_kind::S_sub_option_code: // sub_option_code
value.move< uint16_t > (that.value);
break;
case symbol_kind::S_integer_expr: // integer_expr
case symbol_kind::S_enterprise_id: // enterprise_id
value.move< uint32_t > (that.value);
break;
default:
break;
}
location = that.location;
// that is emptied.
that.state = empty_state;
return *this;
}
#endif
template
void
EvalParser::yy_destroy_ (const char* yymsg, basic_symbol& yysym) const
{
if (yymsg)
YY_SYMBOL_PRINT (yymsg, yysym);
}
#if EVALDEBUG
template
void
EvalParser::yy_print_ (std::ostream& yyo, const basic_symbol& yysym) const
{
std::ostream& yyoutput = yyo;
YY_USE (yyoutput);
if (yysym.empty ())
yyo << "empty symbol";
else
{
symbol_kind_type yykind = yysym.kind ();
yyo << (yykind < YYNTOKENS ? "token" : "nterm")
<< ' ' << yysym.name () << " ("
<< yysym.location << ": ";
switch (yykind)
{
case symbol_kind::S_STRING: // "constant string"
#line 122 "parser.yy"
{ yyoutput << yysym.value.template as < std::string > (); }
#line 464 "parser.cc"
break;
case symbol_kind::S_INTEGER: // "integer"
#line 122 "parser.yy"
{ yyoutput << yysym.value.template as < std::string > (); }
#line 470 "parser.cc"
break;
case symbol_kind::S_HEXSTRING: // "constant hexstring"
#line 122 "parser.yy"
{ yyoutput << yysym.value.template as < std::string > (); }
#line 476 "parser.cc"
break;
case symbol_kind::S_OPTION_NAME: // "option name"
#line 122 "parser.yy"
{ yyoutput << yysym.value.template as < std::string > (); }
#line 482 "parser.cc"
break;
case symbol_kind::S_IP_ADDRESS: // "ip address"
#line 122 "parser.yy"
{ yyoutput << yysym.value.template as < std::string > (); }
#line 488 "parser.cc"
break;
case symbol_kind::S_integer_expr: // integer_expr
#line 122 "parser.yy"
{ yyoutput << yysym.value.template as < uint32_t > (); }
#line 494 "parser.cc"
break;
case symbol_kind::S_option_code: // option_code
#line 122 "parser.yy"
{ yyoutput << yysym.value.template as < uint16_t > (); }
#line 500 "parser.cc"
break;
case symbol_kind::S_sub_option_code: // sub_option_code
#line 122 "parser.yy"
{ yyoutput << yysym.value.template as < uint16_t > (); }
#line 506 "parser.cc"
break;
case symbol_kind::S_option_repr_type: // option_repr_type
#line 122 "parser.yy"
{ yyoutput << yysym.value.template as < TokenOption::RepresentationType > (); }
#line 512 "parser.cc"
break;
case symbol_kind::S_nest_level: // nest_level
#line 122 "parser.yy"
{ yyoutput << yysym.value.template as < int8_t > (); }
#line 518 "parser.cc"
break;
case symbol_kind::S_pkt_metadata: // pkt_metadata
#line 122 "parser.yy"
{ yyoutput << yysym.value.template as < TokenPkt::MetadataType > (); }
#line 524 "parser.cc"
break;
case symbol_kind::S_enterprise_id: // enterprise_id
#line 122 "parser.yy"
{ yyoutput << yysym.value.template as < uint32_t > (); }
#line 530 "parser.cc"
break;
case symbol_kind::S_pkt4_field: // pkt4_field
#line 122 "parser.yy"
{ yyoutput << yysym.value.template as < TokenPkt4::FieldType > (); }
#line 536 "parser.cc"
break;
case symbol_kind::S_pkt6_field: // pkt6_field
#line 122 "parser.yy"
{ yyoutput << yysym.value.template as < TokenPkt6::FieldType > (); }
#line 542 "parser.cc"
break;
case symbol_kind::S_relay6_field: // relay6_field
#line 122 "parser.yy"
{ yyoutput << yysym.value.template as < TokenRelay6Field::FieldType > (); }
#line 548 "parser.cc"
break;
default:
break;
}
yyo << ')';
}
}
#endif
void
EvalParser::yypush_ (const char* m, YY_MOVE_REF (stack_symbol_type) sym)
{
if (m)
YY_SYMBOL_PRINT (m, sym);
yystack_.push (YY_MOVE (sym));
}
void
EvalParser::yypush_ (const char* m, state_type s, YY_MOVE_REF (symbol_type) sym)
{
#if 201103L <= YY_CPLUSPLUS
yypush_ (m, stack_symbol_type (s, std::move (sym)));
#else
stack_symbol_type ss (s, sym);
yypush_ (m, ss);
#endif
}
void
EvalParser::yypop_ (int n) YY_NOEXCEPT
{
yystack_.pop (n);
}
#if EVALDEBUG
std::ostream&
EvalParser::debug_stream () const
{
return *yycdebug_;
}
void
EvalParser::set_debug_stream (std::ostream& o)
{
yycdebug_ = &o;
}
EvalParser::debug_level_type
EvalParser::debug_level () const
{
return yydebug_;
}
void
EvalParser::set_debug_level (debug_level_type l)
{
yydebug_ = l;
}
#endif // EVALDEBUG
EvalParser::state_type
EvalParser::yy_lr_goto_state_ (state_type yystate, int yysym)
{
int yyr = yypgoto_[yysym - YYNTOKENS] + yystate;
if (0 <= yyr && yyr <= yylast_ && yycheck_[yyr] == yystate)
return yytable_[yyr];
else
return yydefgoto_[yysym - YYNTOKENS];
}
bool
EvalParser::yy_pact_value_is_default_ (int yyvalue) YY_NOEXCEPT
{
return yyvalue == yypact_ninf_;
}
bool
EvalParser::yy_table_value_is_error_ (int yyvalue) YY_NOEXCEPT
{
return yyvalue == yytable_ninf_;
}
int
EvalParser::operator() ()
{
return parse ();
}
int
EvalParser::parse ()
{
int yyn;
/// Length of the RHS of the rule being reduced.
int yylen = 0;
// Error handling.
int yynerrs_ = 0;
int yyerrstatus_ = 0;
/// The lookahead symbol.
symbol_type yyla;
/// The locations where the error started and ended.
stack_symbol_type yyerror_range[3];
/// The return value of parse ().
int yyresult;
#if YY_EXCEPTIONS
try
#endif // YY_EXCEPTIONS
{
YYCDEBUG << "Starting parse\n";
/* Initialize the stack. The initial state will be set in
yynewstate, since the latter expects the semantical and the
location values to have been already stored, initialize these
stacks with a primary value. */
yystack_.clear ();
yypush_ (YY_NULLPTR, 0, YY_MOVE (yyla));
/*-----------------------------------------------.
| yynewstate -- push a new symbol on the stack. |
`-----------------------------------------------*/
yynewstate:
YYCDEBUG << "Entering state " << int (yystack_[0].state) << '\n';
YY_STACK_PRINT ();
// Accept?
if (yystack_[0].state == yyfinal_)
YYACCEPT;
goto yybackup;
/*-----------.
| yybackup. |
`-----------*/
yybackup:
// Try to take a decision without lookahead.
yyn = yypact_[+yystack_[0].state];
if (yy_pact_value_is_default_ (yyn))
goto yydefault;
// Read a lookahead token.
if (yyla.empty ())
{
YYCDEBUG << "Reading a token\n";
#if YY_EXCEPTIONS
try
#endif // YY_EXCEPTIONS
{
symbol_type yylookahead (yylex (ctx));
yyla.move (yylookahead);
}
#if YY_EXCEPTIONS
catch (const syntax_error& yyexc)
{
YYCDEBUG << "Caught exception: " << yyexc.what() << '\n';
error (yyexc);
goto yyerrlab1;
}
#endif // YY_EXCEPTIONS
}
YY_SYMBOL_PRINT ("Next token is", yyla);
if (yyla.kind () == symbol_kind::S_YYerror)
{
// The scanner already issued an error message, process directly
// to error recovery. But do not keep the error token as
// lookahead, it is too special and may lead us to an endless
// loop in error recovery. */
yyla.kind_ = symbol_kind::S_YYUNDEF;
goto yyerrlab1;
}
/* If the proper action on seeing token YYLA.TYPE is to reduce or
to detect an error, take that action. */
yyn += yyla.kind ();
if (yyn < 0 || yylast_ < yyn || yycheck_[yyn] != yyla.kind ())
{
goto yydefault;
}
// Reduce or error.
yyn = yytable_[yyn];
if (yyn <= 0)
{
if (yy_table_value_is_error_ (yyn))
goto yyerrlab;
yyn = -yyn;
goto yyreduce;
}
// Count tokens shifted since error; after three, turn off error status.
if (yyerrstatus_)
--yyerrstatus_;
// Shift the lookahead token.
yypush_ ("Shifting", state_type (yyn), YY_MOVE (yyla));
goto yynewstate;
/*-----------------------------------------------------------.
| yydefault -- do the default action for the current state. |
`-----------------------------------------------------------*/
yydefault:
yyn = yydefact_[+yystack_[0].state];
if (yyn == 0)
goto yyerrlab;
goto yyreduce;
/*-----------------------------.
| yyreduce -- do a reduction. |
`-----------------------------*/
yyreduce:
yylen = yyr2_[yyn];
{
stack_symbol_type yylhs;
yylhs.state = yy_lr_goto_state_ (yystack_[yylen].state, yyr1_[yyn]);
/* Variants are always initialized to an empty instance of the
correct type. The default '$$ = $1' action is NOT applied
when using variants. */
switch (yyr1_[yyn])
{
case symbol_kind::S_option_repr_type: // option_repr_type
yylhs.value.emplace< TokenOption::RepresentationType > ();
break;
case symbol_kind::S_pkt4_field: // pkt4_field
yylhs.value.emplace< TokenPkt4::FieldType > ();
break;
case symbol_kind::S_pkt6_field: // pkt6_field
yylhs.value.emplace< TokenPkt6::FieldType > ();
break;
case symbol_kind::S_pkt_metadata: // pkt_metadata
yylhs.value.emplace< TokenPkt::MetadataType > ();
break;
case symbol_kind::S_relay6_field: // relay6_field
yylhs.value.emplace< TokenRelay6Field::FieldType > ();
break;
case symbol_kind::S_nest_level: // nest_level
yylhs.value.emplace< int8_t > ();
break;
case symbol_kind::S_STRING: // "constant string"
case symbol_kind::S_INTEGER: // "integer"
case symbol_kind::S_HEXSTRING: // "constant hexstring"
case symbol_kind::S_OPTION_NAME: // "option name"
case symbol_kind::S_IP_ADDRESS: // "ip address"
yylhs.value.emplace< std::string > ();
break;
case symbol_kind::S_option_code: // option_code
case symbol_kind::S_sub_option_code: // sub_option_code
yylhs.value.emplace< uint16_t > ();
break;
case symbol_kind::S_integer_expr: // integer_expr
case symbol_kind::S_enterprise_id: // enterprise_id
yylhs.value.emplace< uint32_t > ();
break;
default:
break;
}
// Default location.
{
stack_type::slice range (yystack_, yylen);
YYLLOC_DEFAULT (yylhs.location, range, yylen);
yyerror_range[1].location = yylhs.location;
}
// Perform the reduction.
YY_REDUCE_PRINT (yyn);
#if YY_EXCEPTIONS
try
#endif // YY_EXCEPTIONS
{
switch (yyn)
{
case 6: // bool_expr: "not" bool_expr
#line 142 "parser.yy"
{
TokenPtr neg(new TokenNot());
ctx.expression.push_back(neg);
}
#line 846 "parser.cc"
break;
case 7: // bool_expr: bool_expr "and" bool_expr
#line 147 "parser.yy"
{
TokenPtr neg(new TokenAnd());
ctx.expression.push_back(neg);
}
#line 855 "parser.cc"
break;
case 8: // bool_expr: bool_expr "or" bool_expr
#line 152 "parser.yy"
{
TokenPtr neg(new TokenOr());
ctx.expression.push_back(neg);
}
#line 864 "parser.cc"
break;
case 9: // bool_expr: string_expr "==" string_expr
#line 157 "parser.yy"
{
TokenPtr eq(new TokenEqual());
ctx.expression.push_back(eq);
}
#line 873 "parser.cc"
break;
case 10: // bool_expr: "option" "[" option_code "]" "." "exists"
#line 162 "parser.yy"
{
TokenPtr opt(new TokenOption(yystack_[3].value.as < uint16_t > (), TokenOption::EXISTS));
ctx.expression.push_back(opt);
}
#line 882 "parser.cc"
break;
case 11: // bool_expr: "option" "[" option_code "]" "." "option" "[" sub_option_code "]" "." "exists"
#line 167 "parser.yy"
{
TokenPtr opt(new TokenSubOption(yystack_[8].value.as < uint16_t > (), yystack_[3].value.as < uint16_t > (), TokenOption::EXISTS));
ctx.expression.push_back(opt);
}
#line 891 "parser.cc"
break;
case 12: // bool_expr: "relay4" "[" sub_option_code "]" "." "exists"
#line 172 "parser.yy"
{
switch (ctx.getUniverse()) {
case Option::V4:
{
TokenPtr opt(new TokenRelay4Option(yystack_[3].value.as < uint16_t > (), TokenOption::EXISTS));
ctx.expression.push_back(opt);
break;
}
case Option::V6:
// We will have relay6[123] for the DHCPv6.
// In a very distant future we'll possibly be able
// to mix both if we have DHCPv4-over-DHCPv6, so it
// has some sense to make it explicit whether we
// talk about DHCPv4 relay or DHCPv6 relay. However,
// for the time being relay4 can be used in DHCPv4
// only.
error(yystack_[5].location, "relay4 can only be used in DHCPv4.");
}
}
#line 915 "parser.cc"
break;
case 13: // bool_expr: "relay6" "[" nest_level "]" "." "option" "[" sub_option_code "]" "." "exists"
#line 192 "parser.yy"
{
switch (ctx.getUniverse()) {
case Option::V6:
{
TokenPtr opt(new TokenRelay6Option(yystack_[8].value.as < int8_t > (), yystack_[3].value.as < uint16_t > (), TokenOption::EXISTS));
ctx.expression.push_back(opt);
break;
}
case Option::V4:
// For now we only use relay6 in DHCPv6.
error(yystack_[10].location, "relay6 can only be used in DHCPv6.");
}
}
#line 933 "parser.cc"
break;
case 14: // bool_expr: "vendor-class" "[" enterprise_id "]" "." "exists"
#line 206 "parser.yy"
{
// Expression: vendor-class[1234].exists
//
// This token will find option 124 (DHCPv4) or 16 (DHCPv6),
// and will check if enterprise-id equals specified value.
TokenPtr exist(new TokenVendorClass(ctx.getUniverse(), yystack_[3].value.as < uint32_t > (), TokenOption::EXISTS));
ctx.expression.push_back(exist);
}
#line 946 "parser.cc"
break;
case 15: // bool_expr: "vendor" "[" enterprise_id "]" "." "exists"
#line 215 "parser.yy"
{
// Expression: vendor[1234].exists
//
// This token will find option 125 (DHCPv4) or 17 (DHCPv6),
// and will check if enterprise-id equals specified value.
TokenPtr exist(new TokenVendor(ctx.getUniverse(), yystack_[3].value.as < uint32_t > (), TokenOption::EXISTS));
ctx.expression.push_back(exist);
}
#line 959 "parser.cc"
break;
case 16: // bool_expr: "vendor" "[" enterprise_id "]" "." "option" "[" sub_option_code "]" "." "exists"
#line 224 "parser.yy"
{
// Expression vendor[1234].option[123].exists
//
// This token will check if specified vendor option
// exists, has specified enterprise-id and if has
// specified suboption.
TokenPtr exist(new TokenVendor(ctx.getUniverse(), yystack_[8].value.as < uint32_t > (), TokenOption::EXISTS, yystack_[3].value.as < uint16_t > ()));
ctx.expression.push_back(exist);
}
#line 973 "parser.cc"
break;
case 17: // bool_expr: "member" "(" "constant string" ")"
#line 234 "parser.yy"
{
// Expression member('foo')
//
// This token will check if the packet is a member of
// the specified client class.
// To avoid loops at evaluation only already defined and
// built-in classes are allowed.
std::string cc = yystack_[1].value.as < std::string > ();
if (!ctx.isClientClassDefined(cc)) {
error(yystack_[1].location, "Not defined client class '" + cc + "'");
}
TokenPtr member(new TokenMember(cc));
ctx.expression.push_back(member);
}
#line 992 "parser.cc"
break;
case 18: // string_expr: "constant string"
#line 251 "parser.yy"
{
TokenPtr str(new TokenString(yystack_[0].value.as < std::string > ()));
ctx.expression.push_back(str);
}
#line 1001 "parser.cc"
break;
case 19: // string_expr: "constant hexstring"
#line 256 "parser.yy"
{
TokenPtr hex(new TokenHexString(yystack_[0].value.as < std::string > ()));
ctx.expression.push_back(hex);
}
#line 1010 "parser.cc"
break;
case 20: // string_expr: "ip address"
#line 261 "parser.yy"
{
TokenPtr ip(new TokenIpAddress(yystack_[0].value.as < std::string > ()));
ctx.expression.push_back(ip);
}
#line 1019 "parser.cc"
break;
case 21: // string_expr: "option" "[" option_code "]" "." option_repr_type
#line 266 "parser.yy"
{
TokenPtr opt(new TokenOption(yystack_[3].value.as < uint16_t > (), yystack_[0].value.as < TokenOption::RepresentationType > ()));
ctx.expression.push_back(opt);
}
#line 1028 "parser.cc"
break;
case 22: // string_expr: "option" "[" option_code "]" "." "option" "[" sub_option_code "]" "." option_repr_type
#line 271 "parser.yy"
{
TokenPtr opt(new TokenSubOption(yystack_[8].value.as < uint16_t > (), yystack_[3].value.as < uint16_t > (), yystack_[0].value.as < TokenOption::RepresentationType > ()));
ctx.expression.push_back(opt);
}
#line 1037 "parser.cc"
break;
case 23: // string_expr: "relay4" "[" sub_option_code "]" "." option_repr_type
#line 276 "parser.yy"
{
switch (ctx.getUniverse()) {
case Option::V4:
{
TokenPtr opt(new TokenRelay4Option(yystack_[3].value.as < uint16_t > (), yystack_[0].value.as < TokenOption::RepresentationType > ()));
ctx.expression.push_back(opt);
break;
}
case Option::V6:
// We will have relay6[123] for the DHCPv6.
// In a very distant future we'll possibly be able
// to mix both if we have DHCPv4-over-DHCPv6, so it
// has some sense to make it explicit whether we
// talk about DHCPv4 relay or DHCPv6 relay. However,
// for the time being relay4 can be used in DHCPv4
// only.
error(yystack_[5].location, "relay4 can only be used in DHCPv4.");
}
}
#line 1061 "parser.cc"
break;
case 24: // string_expr: "relay6" "[" nest_level "]" "." "option" "[" sub_option_code "]" "." option_repr_type
#line 297 "parser.yy"
{
switch (ctx.getUniverse()) {
case Option::V6:
{
TokenPtr opt(new TokenRelay6Option(yystack_[8].value.as < int8_t > (), yystack_[3].value.as < uint16_t > (), yystack_[0].value.as < TokenOption::RepresentationType > ()));
ctx.expression.push_back(opt);
break;
}
case Option::V4:
// For now we only use relay6 in DHCPv6.
error(yystack_[10].location, "relay6 can only be used in DHCPv6.");
}
}
#line 1079 "parser.cc"
break;
case 25: // string_expr: "pkt" "." pkt_metadata
#line 312 "parser.yy"
{
TokenPtr pkt_metadata(new TokenPkt(yystack_[0].value.as < TokenPkt::MetadataType > ()));
ctx.expression.push_back(pkt_metadata);
}
#line 1088 "parser.cc"
break;
case 26: // string_expr: "pkt4" "." pkt4_field
#line 317 "parser.yy"
{
switch (ctx.getUniverse()) {
case Option::V4:
{
TokenPtr pkt4_field(new TokenPkt4(yystack_[0].value.as < TokenPkt4::FieldType > ()));
ctx.expression.push_back(pkt4_field);
break;
}
case Option::V6:
// For now we only use pkt4 in DHCPv4.
error(yystack_[2].location, "pkt4 can only be used in DHCPv4.");
}
}
#line 1106 "parser.cc"
break;
case 27: // string_expr: "pkt6" "." pkt6_field
#line 331 "parser.yy"
{
switch (ctx.getUniverse()) {
case Option::V6:
{
TokenPtr pkt6_field(new TokenPkt6(yystack_[0].value.as < TokenPkt6::FieldType > ()));
ctx.expression.push_back(pkt6_field);
break;
}
case Option::V4:
// For now we only use pkt6 in DHCPv6.
error(yystack_[2].location, "pkt6 can only be used in DHCPv6.");
}
}
#line 1124 "parser.cc"
break;
case 28: // string_expr: "relay6" "[" nest_level "]" "." relay6_field
#line 345 "parser.yy"
{
switch (ctx.getUniverse()) {
case Option::V6:
{
TokenPtr relay6field(new TokenRelay6Field(yystack_[3].value.as < int8_t > (), yystack_[0].value.as < TokenRelay6Field::FieldType > ()));
ctx.expression.push_back(relay6field);
break;
}
case Option::V4:
// For now we only use relay6 in DHCPv6.
error(yystack_[5].location, "relay6 can only be used in DHCPv6.");
}
}
#line 1142 "parser.cc"
break;
case 29: // string_expr: "substring" "(" string_expr "," start_expr "," length_expr ")"
#line 360 "parser.yy"
{
TokenPtr sub(new TokenSubstring());
ctx.expression.push_back(sub);
}
#line 1151 "parser.cc"
break;
case 30: // string_expr: "split" "(" string_expr "," string_expr "," int_expr ")"
#line 365 "parser.yy"
{
TokenPtr split(new TokenSplit());
ctx.expression.push_back(split);
}
#line 1160 "parser.cc"
break;
case 31: // string_expr: "concat" "(" string_expr "," string_expr ")"
#line 370 "parser.yy"
{
TokenPtr conc(new TokenConcat());
ctx.expression.push_back(conc);
}
#line 1169 "parser.cc"
break;
case 32: // string_expr: string_expr "+" string_expr
#line 375 "parser.yy"
{
TokenPtr conc(new TokenConcat());
ctx.expression.push_back(conc);
}
#line 1178 "parser.cc"
break;
case 33: // string_expr: "ifelse" "(" bool_expr "," string_expr "," string_expr ")"
#line 380 "parser.yy"
{
TokenPtr cond(new TokenIfElse());
ctx.expression.push_back(cond);
}
#line 1187 "parser.cc"
break;
case 34: // string_expr: "hexstring" "(" string_expr "," string_expr ")"
#line 385 "parser.yy"
{
TokenPtr tohex(new TokenToHexString());
ctx.expression.push_back(tohex);
}
#line 1196 "parser.cc"
break;
case 35: // string_expr: "addrtotext" "(" string_expr ")"
#line 390 "parser.yy"
{
TokenPtr addrtotext(new TokenIpAddressToText());
ctx.expression.push_back(addrtotext);
}
#line 1205 "parser.cc"
break;
case 36: // string_expr: "int8totext" "(" string_expr ")"
#line 395 "parser.yy"
{
TokenPtr int8totext(new TokenInt8ToText());
ctx.expression.push_back(int8totext);
}
#line 1214 "parser.cc"
break;
case 37: // string_expr: "int16totext" "(" string_expr ")"
#line 400 "parser.yy"
{
TokenPtr int16totext(new TokenInt16ToText());
ctx.expression.push_back(int16totext);
}
#line 1223 "parser.cc"
break;
case 38: // string_expr: "int32totext" "(" string_expr ")"
#line 405 "parser.yy"
{
TokenPtr int32totext(new TokenInt32ToText());
ctx.expression.push_back(int32totext);
}
#line 1232 "parser.cc"
break;
case 39: // string_expr: "uint8totext" "(" string_expr ")"
#line 410 "parser.yy"
{
TokenPtr uint8totext(new TokenUInt8ToText());
ctx.expression.push_back(uint8totext);
}
#line 1241 "parser.cc"
break;
case 40: // string_expr: "uint16totext" "(" string_expr ")"
#line 415 "parser.yy"
{
TokenPtr uint16totext(new TokenUInt16ToText());
ctx.expression.push_back(uint16totext);
}
#line 1250 "parser.cc"
break;
case 41: // string_expr: "uint32totext" "(" string_expr ")"
#line 420 "parser.yy"
{
TokenPtr uint32totext(new TokenUInt32ToText());
ctx.expression.push_back(uint32totext);
}
#line 1259 "parser.cc"
break;
case 42: // string_expr: "vendor" "." "enterprise"
#line 425 "parser.yy"
{
// expression: vendor.enterprise
//
// This token will return enterprise-id number of
// received vendor option.
TokenPtr vendor(new TokenVendor(ctx.getUniverse(), 0, TokenVendor::ENTERPRISE_ID));
ctx.expression.push_back(vendor);
}
#line 1272 "parser.cc"
break;
case 43: // string_expr: "vendor-class" "." "enterprise"
#line 434 "parser.yy"
{
// expression: vendor-class.enterprise
//
// This token will return enterprise-id number of
// received vendor class option.
TokenPtr vendor(new TokenVendorClass(ctx.getUniverse(), 0,
TokenVendor::ENTERPRISE_ID));
ctx.expression.push_back(vendor);
}
#line 1286 "parser.cc"
break;
case 44: // string_expr: "vendor" "[" enterprise_id "]" "." "option" "[" sub_option_code "]" "." option_repr_type
#line 444 "parser.yy"
{
// This token will search for vendor option with
// specified enterprise-id. If found, will search
// for specified suboption and finally will return
// its content.
TokenPtr opt(new TokenVendor(ctx.getUniverse(), yystack_[8].value.as < uint32_t > (), yystack_[0].value.as < TokenOption::RepresentationType > (), yystack_[3].value.as < uint16_t > ()));
ctx.expression.push_back(opt);
}
#line 1299 "parser.cc"
break;
case 45: // string_expr: "vendor-class" "[" enterprise_id "]" "." "data"
#line 453 "parser.yy"
{
// expression: vendor-class[1234].data
//
// Vendor class option does not have suboptions,
// but chunks of data (typically 1, but the option
// structure allows multiple of them). If chunk
// offset is not specified, we assume the first (0th)
// is requested.
TokenPtr vendor_class(new TokenVendorClass(ctx.getUniverse(), yystack_[3].value.as < uint32_t > (),
TokenVendor::DATA, 0));
ctx.expression.push_back(vendor_class);
}
#line 1316 "parser.cc"
break;
case 46: // string_expr: "vendor-class" "[" enterprise_id "]" "." "data" "[" "integer" "]"
#line 466 "parser.yy"
{
// expression: vendor-class[1234].data[5]
//
// Vendor class option does not have suboptions,
// but chunks of data (typically 1, but the option
// structure allows multiple of them). This syntax
// specifies which data chunk (tuple) we want.
uint8_t index = ctx.convertUint8(yystack_[1].value.as < std::string > (), yystack_[1].location);
TokenPtr vendor_class(new TokenVendorClass(ctx.getUniverse(), yystack_[6].value.as < uint32_t > (),
TokenVendor::DATA, index));
ctx.expression.push_back(vendor_class);
}
#line 1333 "parser.cc"
break;
case 47: // string_expr: integer_expr
#line 479 "parser.yy"
{
TokenPtr integer(new TokenInteger(yystack_[0].value.as < uint32_t > ()));
ctx.expression.push_back(integer);
}
#line 1342 "parser.cc"
break;
case 49: // integer_expr: "integer"
#line 487 "parser.yy"
{
yylhs.value.as < uint32_t > () = ctx.convertUint32(yystack_[0].value.as < std::string > (), yystack_[0].location);
}
#line 1350 "parser.cc"
break;
case 50: // option_code: "integer"
#line 493 "parser.yy"
{
yylhs.value.as < uint16_t > () = ctx.convertOptionCode(yystack_[0].value.as < std::string > (), yystack_[0].location);
}
#line 1358 "parser.cc"
break;
case 51: // option_code: "option name"
#line 497 "parser.yy"
{
yylhs.value.as < uint16_t > () = ctx.convertOptionName(yystack_[0].value.as < std::string > (), yystack_[0].location);
}
#line 1366 "parser.cc"
break;
case 52: // sub_option_code: "integer"
#line 503 "parser.yy"
{
yylhs.value.as < uint16_t > () = ctx.convertOptionCode(yystack_[0].value.as < std::string > (), yystack_[0].location);
}
#line 1374 "parser.cc"
break;
case 53: // option_repr_type: "text"
#line 509 "parser.yy"
{
yylhs.value.as < TokenOption::RepresentationType > () = TokenOption::TEXTUAL;
}
#line 1382 "parser.cc"
break;
case 54: // option_repr_type: "hex"
#line 513 "parser.yy"
{
yylhs.value.as < TokenOption::RepresentationType > () = TokenOption::HEXADECIMAL;
}
#line 1390 "parser.cc"
break;
case 55: // nest_level: "integer"
#line 519 "parser.yy"
{
yylhs.value.as < int8_t > () = ctx.convertNestLevelNumber(yystack_[0].value.as < std::string > (), yystack_[0].location);
}
#line 1398 "parser.cc"
break;
case 56: // pkt_metadata: "iface"
#line 528 "parser.yy"
{
yylhs.value.as < TokenPkt::MetadataType > () = TokenPkt::IFACE;
}
#line 1406 "parser.cc"
break;
case 57: // pkt_metadata: "src"
#line 532 "parser.yy"
{
yylhs.value.as < TokenPkt::MetadataType > () = TokenPkt::SRC;
}
#line 1414 "parser.cc"
break;
case 58: // pkt_metadata: "dst"
#line 536 "parser.yy"
{
yylhs.value.as < TokenPkt::MetadataType > () = TokenPkt::DST;
}
#line 1422 "parser.cc"
break;
case 59: // pkt_metadata: "len"
#line 540 "parser.yy"
{
yylhs.value.as < TokenPkt::MetadataType > () = TokenPkt::LEN;
}
#line 1430 "parser.cc"
break;
case 60: // enterprise_id: "integer"
#line 546 "parser.yy"
{
yylhs.value.as < uint32_t > () = ctx.convertUint32(yystack_[0].value.as < std::string > (), yystack_[0].location);
}
#line 1438 "parser.cc"
break;
case 61: // enterprise_id: "*"
#line 550 "parser.yy"
{
yylhs.value.as < uint32_t > () = 0;
}
#line 1446 "parser.cc"
break;
case 62: // pkt4_field: "mac"
#line 556 "parser.yy"
{
yylhs.value.as < TokenPkt4::FieldType > () = TokenPkt4::CHADDR;
}
#line 1454 "parser.cc"
break;
case 63: // pkt4_field: "hlen"
#line 560 "parser.yy"
{
yylhs.value.as < TokenPkt4::FieldType > () = TokenPkt4::HLEN;
}
#line 1462 "parser.cc"
break;
case 64: // pkt4_field: "htype"
#line 564 "parser.yy"
{
yylhs.value.as < TokenPkt4::FieldType > () = TokenPkt4::HTYPE;
}
#line 1470 "parser.cc"
break;
case 65: // pkt4_field: "ciaddr"
#line 568 "parser.yy"
{
yylhs.value.as < TokenPkt4::FieldType > () = TokenPkt4::CIADDR;
}
#line 1478 "parser.cc"
break;
case 66: // pkt4_field: "giaddr"
#line 572 "parser.yy"
{
yylhs.value.as < TokenPkt4::FieldType > () = TokenPkt4::GIADDR;
}
#line 1486 "parser.cc"
break;
case 67: // pkt4_field: "yiaddr"
#line 576 "parser.yy"
{
yylhs.value.as < TokenPkt4::FieldType > () = TokenPkt4::YIADDR;
}
#line 1494 "parser.cc"
break;
case 68: // pkt4_field: "siaddr"
#line 580 "parser.yy"
{
yylhs.value.as < TokenPkt4::FieldType > () = TokenPkt4::SIADDR;
}
#line 1502 "parser.cc"
break;
case 69: // pkt4_field: "msgtype"
#line 584 "parser.yy"
{
yylhs.value.as < TokenPkt4::FieldType > () = TokenPkt4::MSGTYPE;
}
#line 1510 "parser.cc"
break;
case 70: // pkt4_field: "transid"
#line 588 "parser.yy"
{
yylhs.value.as < TokenPkt4::FieldType > () = TokenPkt4::TRANSID;
}
#line 1518 "parser.cc"
break;
case 71: // pkt6_field: "msgtype"
#line 594 "parser.yy"
{
yylhs.value.as < TokenPkt6::FieldType > () = TokenPkt6::MSGTYPE;
}
#line 1526 "parser.cc"
break;
case 72: // pkt6_field: "transid"
#line 598 "parser.yy"
{
yylhs.value.as < TokenPkt6::FieldType > () = TokenPkt6::TRANSID;
}
#line 1534 "parser.cc"
break;
case 73: // relay6_field: "peeraddr"
#line 604 "parser.yy"
{
yylhs.value.as < TokenRelay6Field::FieldType > () = TokenRelay6Field::PEERADDR;
}
#line 1542 "parser.cc"
break;
case 74: // relay6_field: "linkaddr"
#line 608 "parser.yy"
{
yylhs.value.as < TokenRelay6Field::FieldType > () = TokenRelay6Field::LINKADDR;
}
#line 1550 "parser.cc"
break;
case 75: // start_expr: "integer"
#line 614 "parser.yy"
{
TokenPtr str(new TokenString(yystack_[0].value.as < std::string > ()));
ctx.expression.push_back(str);
}
#line 1559 "parser.cc"
break;
case 76: // length_expr: "integer"
#line 621 "parser.yy"
{
TokenPtr str(new TokenString(yystack_[0].value.as < std::string > ()));
ctx.expression.push_back(str);
}
#line 1568 "parser.cc"
break;
case 77: // length_expr: "all"
#line 626 "parser.yy"
{
TokenPtr str(new TokenString("all"));
ctx.expression.push_back(str);
}
#line 1577 "parser.cc"
break;
case 78: // int_expr: "integer"
#line 632 "parser.yy"
{
TokenPtr str(new TokenString(yystack_[0].value.as < std::string > ()));
ctx.expression.push_back(str);
}
#line 1586 "parser.cc"
break;
#line 1590 "parser.cc"
default:
break;
}
}
#if YY_EXCEPTIONS
catch (const syntax_error& yyexc)
{
YYCDEBUG << "Caught exception: " << yyexc.what() << '\n';
error (yyexc);
YYERROR;
}
#endif // YY_EXCEPTIONS
YY_SYMBOL_PRINT ("-> $$ =", yylhs);
yypop_ (yylen);
yylen = 0;
// Shift the result of the reduction.
yypush_ (YY_NULLPTR, YY_MOVE (yylhs));
}
goto yynewstate;
/*--------------------------------------.
| yyerrlab -- here on detecting error. |
`--------------------------------------*/
yyerrlab:
// If not already recovering from an error, report this error.
if (!yyerrstatus_)
{
++yynerrs_;
context yyctx (*this, yyla);
std::string msg = yysyntax_error_ (yyctx);
error (yyla.location, YY_MOVE (msg));
}
yyerror_range[1].location = yyla.location;
if (yyerrstatus_ == 3)
{
/* If just tried and failed to reuse lookahead token after an
error, discard it. */
// Return failure if at end of input.
if (yyla.kind () == symbol_kind::S_YYEOF)
YYABORT;
else if (!yyla.empty ())
{
yy_destroy_ ("Error: discarding", yyla);
yyla.clear ();
}
}
// Else will try to reuse lookahead token after shifting the error token.
goto yyerrlab1;
/*---------------------------------------------------.
| yyerrorlab -- error raised explicitly by YYERROR. |
`---------------------------------------------------*/
yyerrorlab:
/* Pacify compilers when the user code never invokes YYERROR and
the label yyerrorlab therefore never appears in user code. */
if (false)
YYERROR;
/* Do not reclaim the symbols of the rule whose action triggered
this YYERROR. */
yypop_ (yylen);
yylen = 0;
YY_STACK_PRINT ();
goto yyerrlab1;
/*-------------------------------------------------------------.
| yyerrlab1 -- common code for both syntax error and YYERROR. |
`-------------------------------------------------------------*/
yyerrlab1:
yyerrstatus_ = 3; // Each real token shifted decrements this.
// Pop stack until we find a state that shifts the error token.
for (;;)
{
yyn = yypact_[+yystack_[0].state];
if (!yy_pact_value_is_default_ (yyn))
{
yyn += symbol_kind::S_YYerror;
if (0 <= yyn && yyn <= yylast_
&& yycheck_[yyn] == symbol_kind::S_YYerror)
{
yyn = yytable_[yyn];
if (0 < yyn)
break;
}
}
// Pop the current state because it cannot handle the error token.
if (yystack_.size () == 1)
YYABORT;
yyerror_range[1].location = yystack_[0].location;
yy_destroy_ ("Error: popping", yystack_[0]);
yypop_ ();
YY_STACK_PRINT ();
}
{
stack_symbol_type error_token;
yyerror_range[2].location = yyla.location;
YYLLOC_DEFAULT (error_token.location, yyerror_range, 2);
// Shift the error token.
error_token.state = state_type (yyn);
yypush_ ("Shifting", YY_MOVE (error_token));
}
goto yynewstate;
/*-------------------------------------.
| yyacceptlab -- YYACCEPT comes here. |
`-------------------------------------*/
yyacceptlab:
yyresult = 0;
goto yyreturn;
/*-----------------------------------.
| yyabortlab -- YYABORT comes here. |
`-----------------------------------*/
yyabortlab:
yyresult = 1;
goto yyreturn;
/*-----------------------------------------------------.
| yyreturn -- parsing is finished, return the result. |
`-----------------------------------------------------*/
yyreturn:
if (!yyla.empty ())
yy_destroy_ ("Cleanup: discarding lookahead", yyla);
/* Do not reclaim the symbols of the rule whose action triggered
this YYABORT or YYACCEPT. */
yypop_ (yylen);
YY_STACK_PRINT ();
while (1 < yystack_.size ())
{
yy_destroy_ ("Cleanup: popping", yystack_[0]);
yypop_ ();
}
return yyresult;
}
#if YY_EXCEPTIONS
catch (...)
{
YYCDEBUG << "Exception caught: cleaning lookahead and stack\n";
// Do not try to display the values of the reclaimed symbols,
// as their printers might throw an exception.
if (!yyla.empty ())
yy_destroy_ (YY_NULLPTR, yyla);
while (1 < yystack_.size ())
{
yy_destroy_ (YY_NULLPTR, yystack_[0]);
yypop_ ();
}
throw;
}
#endif // YY_EXCEPTIONS
}
void
EvalParser::error (const syntax_error& yyexc)
{
error (yyexc.location, yyexc.what ());
}
/* Return YYSTR after stripping away unnecessary quotes and
backslashes, so that it's suitable for yyerror. The heuristic is
that double-quoting is unnecessary unless the string contains an
apostrophe, a comma, or backslash (other than backslash-backslash).
YYSTR is taken from yytname. */
std::string
EvalParser::yytnamerr_ (const char *yystr)
{
if (*yystr == '"')
{
std::string yyr;
char const *yyp = yystr;
for (;;)
switch (*++yyp)
{
case '\'':
case ',':
goto do_not_strip_quotes;
case '\\':
if (*++yyp != '\\')
goto do_not_strip_quotes;
else
goto append;
append:
default:
yyr += *yyp;
break;
case '"':
return yyr;
}
do_not_strip_quotes: ;
}
return yystr;
}
std::string
EvalParser::symbol_name (symbol_kind_type yysymbol)
{
return yytnamerr_ (yytname_[yysymbol]);
}
// EvalParser::context.
EvalParser::context::context (const EvalParser& yyparser, const symbol_type& yyla)
: yyparser_ (yyparser)
, yyla_ (yyla)
{}
int
EvalParser::context::expected_tokens (symbol_kind_type yyarg[], int yyargn) const
{
// Actual number of expected tokens
int yycount = 0;
const int yyn = yypact_[+yyparser_.yystack_[0].state];
if (!yy_pact_value_is_default_ (yyn))
{
/* Start YYX at -YYN if negative to avoid negative indexes in
YYCHECK. In other words, skip the first -YYN actions for
this state because they are default actions. */
const int yyxbegin = yyn < 0 ? -yyn : 0;
// Stay within bounds of both yycheck and yytname.
const int yychecklim = yylast_ - yyn + 1;
const int yyxend = yychecklim < YYNTOKENS ? yychecklim : YYNTOKENS;
for (int yyx = yyxbegin; yyx < yyxend; ++yyx)
if (yycheck_[yyx + yyn] == yyx && yyx != symbol_kind::S_YYerror
&& !yy_table_value_is_error_ (yytable_[yyx + yyn]))
{
if (!yyarg)
++yycount;
else if (yycount == yyargn)
return 0;
else
yyarg[yycount++] = YY_CAST (symbol_kind_type, yyx);
}
}
if (yyarg && yycount == 0 && 0 < yyargn)
yyarg[0] = symbol_kind::S_YYEMPTY;
return yycount;
}
int
EvalParser::yy_syntax_error_arguments_ (const context& yyctx,
symbol_kind_type yyarg[], int yyargn) const
{
/* There are many possibilities here to consider:
- If this state is a consistent state with a default action, then
the only way this function was invoked is if the default action
is an error action. In that case, don't check for expected
tokens because there are none.
- The only way there can be no lookahead present (in yyla) is
if this state is a consistent state with a default action.
Thus, detecting the absence of a lookahead is sufficient to
determine that there is no unexpected or expected token to
report. In that case, just report a simple "syntax error".
- Don't assume there isn't a lookahead just because this state is
a consistent state with a default action. There might have
been a previous inconsistent state, consistent state with a
non-default action, or user semantic action that manipulated
yyla. (However, yyla is currently not documented for users.)
- Of course, the expected token list depends on states to have
correct lookahead information, and it depends on the parser not
to perform extra reductions after fetching a lookahead from the
scanner and before detecting a syntax error. Thus, state merging
(from LALR or IELR) and default reductions corrupt the expected
token list. However, the list is correct for canonical LR with
one exception: it will still contain any token that will not be
accepted due to an error action in a later state.
*/
if (!yyctx.lookahead ().empty ())
{
if (yyarg)
yyarg[0] = yyctx.token ();
int yyn = yyctx.expected_tokens (yyarg ? yyarg + 1 : yyarg, yyargn - 1);
return yyn + 1;
}
return 0;
}
// Generate an error message.
std::string
EvalParser::yysyntax_error_ (const context& yyctx) const
{
// Its maximum.
enum { YYARGS_MAX = 5 };
// Arguments of yyformat.
symbol_kind_type yyarg[YYARGS_MAX];
int yycount = yy_syntax_error_arguments_ (yyctx, yyarg, YYARGS_MAX);
char const* yyformat = YY_NULLPTR;
switch (yycount)
{
#define YYCASE_(N, S) \
case N: \
yyformat = S; \
break
default: // Avoid compiler warnings.
YYCASE_ (0, YY_("syntax error"));
YYCASE_ (1, YY_("syntax error, unexpected %s"));
YYCASE_ (2, YY_("syntax error, unexpected %s, expecting %s"));
YYCASE_ (3, YY_("syntax error, unexpected %s, expecting %s or %s"));
YYCASE_ (4, YY_("syntax error, unexpected %s, expecting %s or %s or %s"));
YYCASE_ (5, YY_("syntax error, unexpected %s, expecting %s or %s or %s or %s"));
#undef YYCASE_
}
std::string yyres;
// Argument number.
std::ptrdiff_t yyi = 0;
for (char const* yyp = yyformat; *yyp; ++yyp)
if (yyp[0] == '%' && yyp[1] == 's' && yyi < yycount)
{
yyres += symbol_name (yyarg[yyi++]);
++yyp;
}
else
yyres += *yyp;
return yyres;
}
const short EvalParser::yypact_ninf_ = -156;
const signed char EvalParser::yytable_ninf_ = -1;
const short
EvalParser::yypact_[] =
{
43, 109, 156, 20, 109, 109, 73, 94, 98, 90,
79, 111, 133, 142, 157, 168, 177, 180, 185, 189,
190, 192, 211, 219, 207, 112, 131, -156, -156, -156,
-156, -156, 135, 29, -156, 156, 210, 212, 213, 161,
164, 187, -156, 104, 0, -156, -34, 169, 170, 172,
82, 52, 156, 156, 156, 109, 156, 156, 156, 156,
156, 156, 156, 156, 113, -39, 176, -39, 178, 109,
109, 156, 156, 1, -34, 169, 170, -39, -39, -156,
-156, -156, -156, 217, -156, 220, -156, 221, 231, -156,
-156, -156, -156, -156, -156, -156, -156, -156, -156, -156,
-156, -156, -156, -156, 147, 150, 173, 10, 174, 2,
3, 5, 6, 7, 14, 23, -156, -156, -156, -156,
-156, 222, -156, 223, -156, -156, 234, 187, -156, 225,
226, 227, 228, 229, 230, 232, 233, -156, 186, 156,
156, 156, 156, -156, -156, -156, -156, -156, -156, -156,
235, 236, 237, 238, 239, 240, 241, 16, 4, 78,
-156, 214, 181, 25, 184, 26, 11, 77, 80, 188,
81, 193, 250, 245, -156, -156, -156, -156, -156, -156,
246, -156, -156, -156, -17, 202, -156, 156, -156, -156,
248, 249, -156, 251, 252, 253, 169, 169, -156, -156,
261, -156, 265, 28, 215, 169, 169, 169, 169, 254,
255, -156, -156, -156, 256, 257, 258, 260, 262, 263,
264, -156, 266, 267, 268, 269, 97, 106, 155, 188,
188, 188, -156, -156, -156, -156, -156, -156
};
const signed char
EvalParser::yydefact_[] =
{
0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 18, 49, 19,
20, 2, 4, 0, 47, 0, 0, 0, 0, 0,
0, 3, 1, 0, 0, 6, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 5,
48, 50, 51, 0, 52, 0, 55, 0, 0, 56,
57, 58, 59, 25, 62, 63, 64, 65, 66, 67,
68, 69, 70, 26, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 71, 72, 27, 61,
60, 0, 43, 0, 42, 7, 8, 9, 32, 0,
0, 0, 0, 0, 0, 0, 0, 17, 0, 0,
0, 0, 0, 35, 36, 37, 38, 39, 40, 41,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
75, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 53, 54, 10, 21, 12, 23,
0, 73, 74, 28, 0, 0, 31, 0, 34, 14,
45, 0, 15, 0, 0, 0, 0, 0, 77, 76,
0, 78, 0, 0, 0, 0, 0, 0, 0, 0,
0, 29, 30, 33, 0, 0, 0, 0, 0, 0,
0, 46, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 11, 22, 13, 24, 16, 44
};
const short
EvalParser::yypgoto_[] =
{
-156, -156, -156, 8, -2, -156, 203, -74, -155, 206,
-156, -29, -156, -156, -156, -156, -156, -156
};
const unsigned char
EvalParser::yydefgoto_[] =
{
0, 3, 31, 32, 33, 34, 83, 85, 177, 87,
93, 121, 103, 118, 183, 161, 200, 202
};
const unsigned char
EvalParser::yytable_[] =
{
41, 130, 44, 179, 80, 80, 143, 144, 71, 145,
146, 147, 43, 45, 179, 119, 69, 70, 148, 198,
42, 120, 174, 175, 178, 173, 81, 149, 82, 186,
188, 189, 213, 73, 174, 175, 176, 71, 123, 72,
72, 72, 72, 199, 72, 72, 72, 141, 132, 133,
104, 105, 106, 72, 108, 109, 110, 111, 112, 113,
114, 115, 72, 107, 72, 72, 190, 72, 72, 127,
128, 233, 235, 237, 233, 235, 237, 125, 126, 94,
95, 96, 97, 98, 99, 100, 191, 180, 46, 193,
194, 181, 182, 49, 181, 182, 50, 192, 174, 175,
1, 2, 101, 102, 89, 90, 91, 92, 79, 47,
69, 70, 4, 48, 5, 174, 175, 232, 6, 7,
8, 9, 209, 210, 174, 175, 234, 65, 51, 66,
10, 215, 216, 217, 218, 11, 52, 162, 163, 164,
165, 69, 70, 12, 13, 53, 67, 14, 68, 15,
16, 17, 18, 19, 20, 21, 22, 23, 24, 35,
54, 25, 26, 116, 117, 36, 37, 38, 27, 28,
29, 55, 30, 174, 175, 236, 77, 10, 66, 78,
56, 68, 11, 57, 138, 203, 72, 139, 58, 72,
12, 13, 59, 60, 14, 61, 15, 16, 17, 18,
19, 20, 21, 22, 23, 24, 174, 175, 39, 40,
140, 142, 72, 72, 62, 27, 28, 29, 185, 30,
72, 187, 63, 72, 64, 74, 72, 75, 76, 84,
86, 88, 122, 134, 124, 137, 135, 136, 150, 151,
69, 152, 153, 154, 155, 156, 160, 157, 190, 158,
159, 184, 166, 167, 168, 169, 170, 171, 172, 195,
196, 197, 201, 204, 205, 211, 206, 207, 208, 212,
219, 220, 221, 222, 223, 214, 224, 129, 225, 0,
226, 227, 131, 228, 229, 230, 231
};
const short
EvalParser::yycheck_[] =
{
2, 75, 4, 158, 4, 4, 4, 4, 8, 4,
4, 4, 4, 5, 169, 54, 6, 7, 4, 36,
0, 60, 18, 19, 20, 9, 60, 4, 62, 4,
4, 20, 4, 35, 18, 19, 20, 8, 67, 39,
39, 39, 39, 60, 39, 39, 39, 37, 77, 78,
52, 53, 54, 39, 56, 57, 58, 59, 60, 61,
62, 63, 39, 55, 39, 39, 55, 39, 39, 71,
72, 226, 227, 228, 229, 230, 231, 69, 70, 27,
28, 29, 30, 31, 32, 33, 9, 9, 15, 9,
9, 13, 14, 3, 13, 14, 17, 20, 18, 19,
57, 58, 50, 51, 22, 23, 24, 25, 4, 15,
6, 7, 3, 15, 5, 18, 19, 20, 9, 10,
11, 12, 196, 197, 18, 19, 20, 15, 17, 17,
21, 205, 206, 207, 208, 26, 3, 139, 140, 141,
142, 6, 7, 34, 35, 3, 15, 38, 17, 40,
41, 42, 43, 44, 45, 46, 47, 48, 49, 3,
3, 52, 53, 50, 51, 9, 10, 11, 59, 60,
61, 3, 63, 18, 19, 20, 15, 21, 17, 15,
3, 17, 26, 3, 37, 187, 39, 37, 3, 39,
34, 35, 3, 3, 38, 3, 40, 41, 42, 43,
44, 45, 46, 47, 48, 49, 18, 19, 52, 53,
37, 37, 39, 39, 3, 59, 60, 61, 37, 63,
39, 37, 3, 39, 17, 15, 39, 15, 15, 60,
60, 59, 56, 16, 56, 4, 16, 16, 16, 16,
6, 16, 16, 16, 16, 16, 60, 17, 55, 17,
17, 37, 17, 17, 17, 17, 17, 17, 17, 9,
15, 15, 60, 15, 15, 4, 15, 15, 15, 4,
16, 16, 16, 16, 16, 60, 16, 74, 16, -1,
17, 17, 76, 17, 17, 17, 17
};
const signed char
EvalParser::yystos_[] =
{
0, 57, 58, 65, 3, 5, 9, 10, 11, 12,
21, 26, 34, 35, 38, 40, 41, 42, 43, 44,
45, 46, 47, 48, 49, 52, 53, 59, 60, 61,
63, 66, 67, 68, 69, 3, 9, 10, 11, 52,
53, 68, 0, 67, 68, 67, 15, 15, 15, 3,
17, 17, 3, 3, 3, 3, 3, 3, 3, 3,
3, 3, 3, 3, 17, 15, 17, 15, 17, 6,
7, 8, 39, 68, 15, 15, 15, 15, 15, 4,
4, 60, 62, 70, 60, 71, 60, 73, 59, 22,
23, 24, 25, 74, 27, 28, 29, 30, 31, 32,
33, 50, 51, 76, 68, 68, 68, 67, 68, 68,
68, 68, 68, 68, 68, 68, 50, 51, 77, 54,
60, 75, 56, 75, 56, 67, 67, 68, 68, 70,
71, 73, 75, 75, 16, 16, 16, 4, 37, 37,
37, 37, 37, 4, 4, 4, 4, 4, 4, 4,
16, 16, 16, 16, 16, 16, 16, 17, 17, 17,
60, 79, 68, 68, 68, 68, 17, 17, 17, 17,
17, 17, 17, 9, 18, 19, 20, 72, 20, 72,
9, 13, 14, 78, 37, 37, 4, 37, 4, 20,
55, 9, 20, 9, 9, 9, 15, 15, 36, 60,
80, 60, 81, 68, 15, 15, 15, 15, 15, 71,
71, 4, 4, 4, 60, 71, 71, 71, 71, 16,
16, 16, 16, 16, 16, 16, 17, 17, 17, 17,
17, 17, 20, 72, 20, 72, 20, 72
};
const signed char
EvalParser::yyr1_[] =
{
0, 64, 65, 65, 66, 67, 67, 67, 67, 67,
67, 67, 67, 67, 67, 67, 67, 67, 68, 68,
68, 68, 68, 68, 68, 68, 68, 68, 68, 68,
68, 68, 68, 68, 68, 68, 68, 68, 68, 68,
68, 68, 68, 68, 68, 68, 68, 68, 68, 69,
70, 70, 71, 72, 72, 73, 74, 74, 74, 74,
75, 75, 76, 76, 76, 76, 76, 76, 76, 76,
76, 77, 77, 78, 78, 79, 80, 80, 81
};
const signed char
EvalParser::yyr2_[] =
{
0, 2, 2, 2, 1, 3, 2, 3, 3, 3,
6, 11, 6, 11, 6, 6, 11, 4, 1, 1,
1, 6, 11, 6, 11, 3, 3, 3, 6, 8,
8, 6, 3, 8, 6, 4, 4, 4, 4, 4,
4, 4, 3, 3, 11, 6, 9, 1, 3, 1,
1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
1, 1, 1, 1, 1, 1, 1, 1, 1
};
#if EVALDEBUG || 1
// YYTNAME[SYMBOL-NUM] -- String name of the symbol SYMBOL-NUM.
// First, the terminals, then, starting at \a YYNTOKENS, nonterminals.
const char*
const EvalParser::yytname_[] =
{
"\"end of file\"", "error", "\"invalid token\"", "\"(\"", "\")\"",
"\"not\"", "\"and\"", "\"or\"", "\"==\"", "\"option\"", "\"relay4\"",
"\"relay6\"", "\"member\"", "\"peeraddr\"", "\"linkaddr\"", "\"[\"",
"\"]\"", "\".\"", "\"text\"", "\"hex\"", "\"exists\"", "\"pkt\"",
"\"iface\"", "\"src\"", "\"dst\"", "\"len\"", "\"pkt4\"", "\"mac\"",
"\"hlen\"", "\"htype\"", "\"ciaddr\"", "\"giaddr\"", "\"yiaddr\"",
"\"siaddr\"", "\"substring\"", "\"split\"", "\"all\"", "\",\"",
"\"concat\"", "\"+\"", "\"ifelse\"", "\"hexstring\"", "\"addrtotext\"",
"\"int8totext\"", "\"int16totext\"", "\"int32totext\"",
"\"uint8totext\"", "\"uint16totext\"", "\"uint32totext\"", "\"pkt6\"",
"\"msgtype\"", "\"transid\"", "\"vendor-class\"", "\"vendor\"", "\"*\"",
"\"data\"", "\"enterprise\"", "\"top-level bool\"",
"\"top-level string\"", "\"constant string\"", "\"integer\"",
"\"constant hexstring\"", "\"option name\"", "\"ip address\"", "$accept",
"start", "expression", "bool_expr", "string_expr", "integer_expr",
"option_code", "sub_option_code", "option_repr_type", "nest_level",
"pkt_metadata", "enterprise_id", "pkt4_field", "pkt6_field",
"relay6_field", "start_expr", "length_expr", "int_expr", YY_NULLPTR
};
#endif
#if EVALDEBUG
const short
EvalParser::yyrline_[] =
{
0, 131, 131, 132, 137, 140, 141, 146, 151, 156,
161, 166, 171, 191, 205, 214, 223, 233, 250, 255,
260, 265, 270, 275, 296, 311, 316, 330, 344, 359,
364, 369, 374, 379, 384, 389, 394, 399, 404, 409,
414, 419, 424, 433, 443, 452, 465, 478, 483, 486,
492, 496, 502, 508, 512, 518, 527, 531, 535, 539,
545, 549, 555, 559, 563, 567, 571, 575, 579, 583,
587, 593, 597, 603, 607, 613, 620, 625, 631
};
void
EvalParser::yy_stack_print_ () const
{
*yycdebug_ << "Stack now";
for (stack_type::const_iterator
i = yystack_.begin (),
i_end = yystack_.end ();
i != i_end; ++i)
*yycdebug_ << ' ' << int (i->state);
*yycdebug_ << '\n';
}
void
EvalParser::yy_reduce_print_ (int yyrule) const
{
int yylno = yyrline_[yyrule];
int yynrhs = yyr2_[yyrule];
// Print the symbols being reduced, and their result.
*yycdebug_ << "Reducing stack by rule " << yyrule - 1
<< " (line " << yylno << "):\n";
// The symbols being reduced.
for (int yyi = 0; yyi < yynrhs; yyi++)
YY_SYMBOL_PRINT (" $" << yyi + 1 << " =",
yystack_[(yynrhs) - (yyi + 1)]);
}
#endif // EVALDEBUG
#line 14 "parser.yy"
} } // isc::eval
#line 2214 "parser.cc"
#line 638 "parser.yy"
void
isc::eval::EvalParser::error(const location_type& loc,
const std::string& what)
{
ctx.error(loc, what);
}