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parse.cc
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parse.cc
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// 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 <https://www.gnu.org/licenses/>.
// 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.
// First part of user prologue.
#line 28 "../bashcpp/parse.yy"
#include "config.h"
#include "shell.hh"
static inline bash::parser::symbol_type
yylex ()
{
return bash::the_shell->yylex ();
}
#if defined(__clang__)
#pragma clang diagnostic push
#pragma clang diagnostic ignored "-Wswitch-enum"
#pragma clang diagnostic ignored "-Wunreachable-code-break"
#pragma clang diagnostic ignored "-Wunused-macros"
#endif
#line 59 "../bashcpp/parse.cc"
#include "../bashcpp/parse.hh"
#ifndef YY_
# if defined YYENABLE_NLS && YYENABLE_NLS
# if ENABLE_NLS
# include <libintl.h> // 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
// Enable debugging if requested.
#if YYDEBUG
// 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 // !YYDEBUG
# define YYCDEBUG if (false) std::cerr
# define YY_SYMBOL_PRINT(Title, Symbol) YY_USE (Symbol)
# define YY_REDUCE_PRINT(Rule) static_cast<void> (0)
# define YY_STACK_PRINT() static_cast<void> (0)
#endif // !YYDEBUG
#define yyerrok (yyerrstatus_ = 0)
#define yyclearin (yyla.clear ())
#define YYACCEPT goto yyacceptlab
#define YYABORT goto yyabortlab
#define YYERROR goto yyerrorlab
#define YYRECOVERING() (!!yyerrstatus_)
#line 26 "../bashcpp/parse.yy"
namespace bash {
#line 138 "../bashcpp/parse.cc"
/// Build a parser object.
parser::parser ()
#if YYDEBUG
: yydebug_ (false),
yycdebug_ (&std::cerr)
#else
#endif
{}
parser::~parser ()
{}
parser::syntax_error::~syntax_error () YY_NOEXCEPT YY_NOTHROW
{}
/*---------.
| symbol. |
`---------*/
// by_state.
parser::by_state::by_state () YY_NOEXCEPT
: state (empty_state)
{}
parser::by_state::by_state (const by_state& that) YY_NOEXCEPT
: state (that.state)
{}
void
parser::by_state::clear () YY_NOEXCEPT
{
state = empty_state;
}
void
parser::by_state::move (by_state& that)
{
state = that.state;
that.clear ();
}
parser::by_state::by_state (state_type s) YY_NOEXCEPT
: state (s)
{}
parser::symbol_kind_type
parser::by_state::kind () const YY_NOEXCEPT
{
if (state == empty_state)
return symbol_kind::S_YYEMPTY;
else
return YY_CAST (symbol_kind_type, yystos_[+state]);
}
parser::stack_symbol_type::stack_symbol_type ()
{}
parser::stack_symbol_type::stack_symbol_type (YY_RVREF (stack_symbol_type) that)
: super_type (YY_MOVE (that.state))
{
switch (that.kind ())
{
case symbol_kind::S_COND_CMD: // COND_CMD
case symbol_kind::S_inputunit: // inputunit
case symbol_kind::S_simple_command: // simple_command
case symbol_kind::S_command: // command
case symbol_kind::S_shell_command: // shell_command
case symbol_kind::S_for_command: // for_command
case symbol_kind::S_arith_for_command: // arith_for_command
case symbol_kind::S_select_command: // select_command
case symbol_kind::S_case_command: // case_command
case symbol_kind::S_function_def: // function_def
case symbol_kind::S_function_body: // function_body
case symbol_kind::S_subshell: // subshell
case symbol_kind::S_comsub: // comsub
case symbol_kind::S_coproc: // coproc
case symbol_kind::S_if_command: // if_command
case symbol_kind::S_group_command: // group_command
case symbol_kind::S_arith_command: // arith_command
case symbol_kind::S_cond_command: // cond_command
case symbol_kind::S_elif_clause: // elif_clause
case symbol_kind::S_compound_list: // compound_list
case symbol_kind::S_list0: // list0
case symbol_kind::S_list1: // list1
case symbol_kind::S_simple_list: // simple_list
case symbol_kind::S_simple_list1: // simple_list1
case symbol_kind::S_pipeline_command: // pipeline_command
case symbol_kind::S_pipeline: // pipeline
value.YY_MOVE_OR_COPY< COMMAND_PTR > (YY_MOVE (that.value));
break;
case symbol_kind::S_simple_command_element: // simple_command_element
value.YY_MOVE_OR_COPY< ELEMENT > (YY_MOVE (that.value));
break;
case symbol_kind::S_case_clause: // case_clause
case symbol_kind::S_pattern_list: // pattern_list
case symbol_kind::S_case_clause_sequence: // case_clause_sequence
value.YY_MOVE_OR_COPY< PATTERN_LIST_PTR > (YY_MOVE (that.value));
break;
case symbol_kind::S_redirection: // redirection
case symbol_kind::S_redirection_list: // redirection_list
value.YY_MOVE_OR_COPY< REDIRECT_PTR > (YY_MOVE (that.value));
break;
case symbol_kind::S_WORD: // WORD
case symbol_kind::S_ASSIGNMENT_WORD: // ASSIGNMENT_WORD
case symbol_kind::S_REDIR_WORD: // REDIR_WORD
value.YY_MOVE_OR_COPY< WORD_DESC_PTR > (YY_MOVE (that.value));
break;
case symbol_kind::S_ARITH_CMD: // ARITH_CMD
case symbol_kind::S_ARITH_FOR_EXPRS: // ARITH_FOR_EXPRS
case symbol_kind::S_word_list: // word_list
case symbol_kind::S_pattern: // pattern
value.YY_MOVE_OR_COPY< WORD_LIST_PTR > (YY_MOVE (that.value));
break;
case symbol_kind::S_NUMBER: // NUMBER
case symbol_kind::S_list_terminator: // list_terminator
case symbol_kind::S_timespec: // timespec
value.YY_MOVE_OR_COPY< int64_t > (YY_MOVE (that.value));
break;
default:
break;
}
#if 201103L <= YY_CPLUSPLUS
// that is emptied.
that.state = empty_state;
#endif
}
parser::stack_symbol_type::stack_symbol_type (state_type s, YY_MOVE_REF (symbol_type) that)
: super_type (s)
{
switch (that.kind ())
{
case symbol_kind::S_COND_CMD: // COND_CMD
case symbol_kind::S_inputunit: // inputunit
case symbol_kind::S_simple_command: // simple_command
case symbol_kind::S_command: // command
case symbol_kind::S_shell_command: // shell_command
case symbol_kind::S_for_command: // for_command
case symbol_kind::S_arith_for_command: // arith_for_command
case symbol_kind::S_select_command: // select_command
case symbol_kind::S_case_command: // case_command
case symbol_kind::S_function_def: // function_def
case symbol_kind::S_function_body: // function_body
case symbol_kind::S_subshell: // subshell
case symbol_kind::S_comsub: // comsub
case symbol_kind::S_coproc: // coproc
case symbol_kind::S_if_command: // if_command
case symbol_kind::S_group_command: // group_command
case symbol_kind::S_arith_command: // arith_command
case symbol_kind::S_cond_command: // cond_command
case symbol_kind::S_elif_clause: // elif_clause
case symbol_kind::S_compound_list: // compound_list
case symbol_kind::S_list0: // list0
case symbol_kind::S_list1: // list1
case symbol_kind::S_simple_list: // simple_list
case symbol_kind::S_simple_list1: // simple_list1
case symbol_kind::S_pipeline_command: // pipeline_command
case symbol_kind::S_pipeline: // pipeline
value.move< COMMAND_PTR > (YY_MOVE (that.value));
break;
case symbol_kind::S_simple_command_element: // simple_command_element
value.move< ELEMENT > (YY_MOVE (that.value));
break;
case symbol_kind::S_case_clause: // case_clause
case symbol_kind::S_pattern_list: // pattern_list
case symbol_kind::S_case_clause_sequence: // case_clause_sequence
value.move< PATTERN_LIST_PTR > (YY_MOVE (that.value));
break;
case symbol_kind::S_redirection: // redirection
case symbol_kind::S_redirection_list: // redirection_list
value.move< REDIRECT_PTR > (YY_MOVE (that.value));
break;
case symbol_kind::S_WORD: // WORD
case symbol_kind::S_ASSIGNMENT_WORD: // ASSIGNMENT_WORD
case symbol_kind::S_REDIR_WORD: // REDIR_WORD
value.move< WORD_DESC_PTR > (YY_MOVE (that.value));
break;
case symbol_kind::S_ARITH_CMD: // ARITH_CMD
case symbol_kind::S_ARITH_FOR_EXPRS: // ARITH_FOR_EXPRS
case symbol_kind::S_word_list: // word_list
case symbol_kind::S_pattern: // pattern
value.move< WORD_LIST_PTR > (YY_MOVE (that.value));
break;
case symbol_kind::S_NUMBER: // NUMBER
case symbol_kind::S_list_terminator: // list_terminator
case symbol_kind::S_timespec: // timespec
value.move< int64_t > (YY_MOVE (that.value));
break;
default:
break;
}
// that is emptied.
that.kind_ = symbol_kind::S_YYEMPTY;
}
#if YY_CPLUSPLUS < 201103L
parser::stack_symbol_type&
parser::stack_symbol_type::operator= (const stack_symbol_type& that)
{
state = that.state;
switch (that.kind ())
{
case symbol_kind::S_COND_CMD: // COND_CMD
case symbol_kind::S_inputunit: // inputunit
case symbol_kind::S_simple_command: // simple_command
case symbol_kind::S_command: // command
case symbol_kind::S_shell_command: // shell_command
case symbol_kind::S_for_command: // for_command
case symbol_kind::S_arith_for_command: // arith_for_command
case symbol_kind::S_select_command: // select_command
case symbol_kind::S_case_command: // case_command
case symbol_kind::S_function_def: // function_def
case symbol_kind::S_function_body: // function_body
case symbol_kind::S_subshell: // subshell
case symbol_kind::S_comsub: // comsub
case symbol_kind::S_coproc: // coproc
case symbol_kind::S_if_command: // if_command
case symbol_kind::S_group_command: // group_command
case symbol_kind::S_arith_command: // arith_command
case symbol_kind::S_cond_command: // cond_command
case symbol_kind::S_elif_clause: // elif_clause
case symbol_kind::S_compound_list: // compound_list
case symbol_kind::S_list0: // list0
case symbol_kind::S_list1: // list1
case symbol_kind::S_simple_list: // simple_list
case symbol_kind::S_simple_list1: // simple_list1
case symbol_kind::S_pipeline_command: // pipeline_command
case symbol_kind::S_pipeline: // pipeline
value.copy< COMMAND_PTR > (that.value);
break;
case symbol_kind::S_simple_command_element: // simple_command_element
value.copy< ELEMENT > (that.value);
break;
case symbol_kind::S_case_clause: // case_clause
case symbol_kind::S_pattern_list: // pattern_list
case symbol_kind::S_case_clause_sequence: // case_clause_sequence
value.copy< PATTERN_LIST_PTR > (that.value);
break;
case symbol_kind::S_redirection: // redirection
case symbol_kind::S_redirection_list: // redirection_list
value.copy< REDIRECT_PTR > (that.value);
break;
case symbol_kind::S_WORD: // WORD
case symbol_kind::S_ASSIGNMENT_WORD: // ASSIGNMENT_WORD
case symbol_kind::S_REDIR_WORD: // REDIR_WORD
value.copy< WORD_DESC_PTR > (that.value);
break;
case symbol_kind::S_ARITH_CMD: // ARITH_CMD
case symbol_kind::S_ARITH_FOR_EXPRS: // ARITH_FOR_EXPRS
case symbol_kind::S_word_list: // word_list
case symbol_kind::S_pattern: // pattern
value.copy< WORD_LIST_PTR > (that.value);
break;
case symbol_kind::S_NUMBER: // NUMBER
case symbol_kind::S_list_terminator: // list_terminator
case symbol_kind::S_timespec: // timespec
value.copy< int64_t > (that.value);
break;
default:
break;
}
return *this;
}
parser::stack_symbol_type&
parser::stack_symbol_type::operator= (stack_symbol_type& that)
{
state = that.state;
switch (that.kind ())
{
case symbol_kind::S_COND_CMD: // COND_CMD
case symbol_kind::S_inputunit: // inputunit
case symbol_kind::S_simple_command: // simple_command
case symbol_kind::S_command: // command
case symbol_kind::S_shell_command: // shell_command
case symbol_kind::S_for_command: // for_command
case symbol_kind::S_arith_for_command: // arith_for_command
case symbol_kind::S_select_command: // select_command
case symbol_kind::S_case_command: // case_command
case symbol_kind::S_function_def: // function_def
case symbol_kind::S_function_body: // function_body
case symbol_kind::S_subshell: // subshell
case symbol_kind::S_comsub: // comsub
case symbol_kind::S_coproc: // coproc
case symbol_kind::S_if_command: // if_command
case symbol_kind::S_group_command: // group_command
case symbol_kind::S_arith_command: // arith_command
case symbol_kind::S_cond_command: // cond_command
case symbol_kind::S_elif_clause: // elif_clause
case symbol_kind::S_compound_list: // compound_list
case symbol_kind::S_list0: // list0
case symbol_kind::S_list1: // list1
case symbol_kind::S_simple_list: // simple_list
case symbol_kind::S_simple_list1: // simple_list1
case symbol_kind::S_pipeline_command: // pipeline_command
case symbol_kind::S_pipeline: // pipeline
value.move< COMMAND_PTR > (that.value);
break;
case symbol_kind::S_simple_command_element: // simple_command_element
value.move< ELEMENT > (that.value);
break;
case symbol_kind::S_case_clause: // case_clause
case symbol_kind::S_pattern_list: // pattern_list
case symbol_kind::S_case_clause_sequence: // case_clause_sequence
value.move< PATTERN_LIST_PTR > (that.value);
break;
case symbol_kind::S_redirection: // redirection
case symbol_kind::S_redirection_list: // redirection_list
value.move< REDIRECT_PTR > (that.value);
break;
case symbol_kind::S_WORD: // WORD
case symbol_kind::S_ASSIGNMENT_WORD: // ASSIGNMENT_WORD
case symbol_kind::S_REDIR_WORD: // REDIR_WORD
value.move< WORD_DESC_PTR > (that.value);
break;
case symbol_kind::S_ARITH_CMD: // ARITH_CMD
case symbol_kind::S_ARITH_FOR_EXPRS: // ARITH_FOR_EXPRS
case symbol_kind::S_word_list: // word_list
case symbol_kind::S_pattern: // pattern
value.move< WORD_LIST_PTR > (that.value);
break;
case symbol_kind::S_NUMBER: // NUMBER
case symbol_kind::S_list_terminator: // list_terminator
case symbol_kind::S_timespec: // timespec
value.move< int64_t > (that.value);
break;
default:
break;
}
// that is emptied.
that.state = empty_state;
return *this;
}
#endif
template <typename Base>
void
parser::yy_destroy_ (const char* yymsg, basic_symbol<Base>& yysym) const
{
if (yymsg)
YY_SYMBOL_PRINT (yymsg, yysym);
}
#if YYDEBUG
template <typename Base>
void
parser::yy_print_ (std::ostream& yyo, const basic_symbol<Base>& 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 () << " (";
YY_USE (yykind);
yyo << ')';
}
}
#endif
void
parser::yypush_ (const char* m, YY_MOVE_REF (stack_symbol_type) sym)
{
if (m)
YY_SYMBOL_PRINT (m, sym);
yystack_.push (YY_MOVE (sym));
}
void
parser::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
parser::yypop_ (int n) YY_NOEXCEPT
{
yystack_.pop (n);
}
#if YYDEBUG
std::ostream&
parser::debug_stream () const
{
return *yycdebug_;
}
void
parser::set_debug_stream (std::ostream& o)
{
yycdebug_ = &o;
}
parser::debug_level_type
parser::debug_level () const
{
return yydebug_;
}
void
parser::set_debug_level (debug_level_type l)
{
yydebug_ = l;
}
#endif // YYDEBUG
parser::state_type
parser::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
parser::yy_pact_value_is_default_ (int yyvalue) YY_NOEXCEPT
{
return yyvalue == yypact_ninf_;
}
bool
parser::yy_table_value_is_error_ (int yyvalue) YY_NOEXCEPT
{
return yyvalue == yytable_ninf_;
}
int
parser::operator() ()
{
return parse ();
}
int
parser::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 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 ());
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_COND_CMD: // COND_CMD
case symbol_kind::S_inputunit: // inputunit
case symbol_kind::S_simple_command: // simple_command
case symbol_kind::S_command: // command
case symbol_kind::S_shell_command: // shell_command
case symbol_kind::S_for_command: // for_command
case symbol_kind::S_arith_for_command: // arith_for_command
case symbol_kind::S_select_command: // select_command
case symbol_kind::S_case_command: // case_command
case symbol_kind::S_function_def: // function_def
case symbol_kind::S_function_body: // function_body
case symbol_kind::S_subshell: // subshell
case symbol_kind::S_comsub: // comsub
case symbol_kind::S_coproc: // coproc
case symbol_kind::S_if_command: // if_command
case symbol_kind::S_group_command: // group_command
case symbol_kind::S_arith_command: // arith_command
case symbol_kind::S_cond_command: // cond_command
case symbol_kind::S_elif_clause: // elif_clause
case symbol_kind::S_compound_list: // compound_list
case symbol_kind::S_list0: // list0
case symbol_kind::S_list1: // list1
case symbol_kind::S_simple_list: // simple_list
case symbol_kind::S_simple_list1: // simple_list1
case symbol_kind::S_pipeline_command: // pipeline_command
case symbol_kind::S_pipeline: // pipeline
yylhs.value.emplace< COMMAND_PTR > ();
break;
case symbol_kind::S_simple_command_element: // simple_command_element
yylhs.value.emplace< ELEMENT > ();
break;
case symbol_kind::S_case_clause: // case_clause
case symbol_kind::S_pattern_list: // pattern_list
case symbol_kind::S_case_clause_sequence: // case_clause_sequence
yylhs.value.emplace< PATTERN_LIST_PTR > ();
break;
case symbol_kind::S_redirection: // redirection
case symbol_kind::S_redirection_list: // redirection_list
yylhs.value.emplace< REDIRECT_PTR > ();
break;
case symbol_kind::S_WORD: // WORD
case symbol_kind::S_ASSIGNMENT_WORD: // ASSIGNMENT_WORD
case symbol_kind::S_REDIR_WORD: // REDIR_WORD
yylhs.value.emplace< WORD_DESC_PTR > ();
break;
case symbol_kind::S_ARITH_CMD: // ARITH_CMD
case symbol_kind::S_ARITH_FOR_EXPRS: // ARITH_FOR_EXPRS
case symbol_kind::S_word_list: // word_list
case symbol_kind::S_pattern: // pattern
yylhs.value.emplace< WORD_LIST_PTR > ();
break;
case symbol_kind::S_NUMBER: // NUMBER
case symbol_kind::S_list_terminator: // list_terminator
case symbol_kind::S_timespec: // timespec
yylhs.value.emplace< int64_t > ();
break;
default:
break;
}
// Perform the reduction.
YY_REDUCE_PRINT (yyn);
#if YY_EXCEPTIONS
try
#endif // YY_EXCEPTIONS
{
switch (yyn)
{
case 2: // inputunit: simple_list simple_list_terminator
#line 96 "../bashcpp/parse.yy"
{
/* Case of regular command. Discard the error
safety net, and return the command just parsed. */
Shell &sh = *the_shell;
sh.global_command = yystack_[1].value.as < COMMAND_PTR > ().value;
sh.eof_encountered = 0;
/* discard_parser_constructs (0); */
if (sh.parser_state & PST_CMDSUBST)
sh.parser_state |= PST_EOFTOKEN;
YYACCEPT;
}
#line 844 "../bashcpp/parse.cc"
break;
case 3: // inputunit: comsub
#line 108 "../bashcpp/parse.yy"
{
/* This is special; look at the production and how
parse_comsub sets token_to_read */
Shell &sh = *the_shell;
sh.global_command = yystack_[0].value.as < COMMAND_PTR > ().value;
sh.eof_encountered = 0;
YYACCEPT;
}
#line 857 "../bashcpp/parse.cc"
break;
case 4: // inputunit: '\n'
#line 117 "../bashcpp/parse.yy"
{
/* Case of regular command, but not a very
interesting one. Return a nullptr command. */
Shell &sh = *the_shell;
sh.global_command = nullptr;
if (sh.parser_state & PST_CMDSUBST)
sh.parser_state |= PST_EOFTOKEN;
YYACCEPT;
}
#line 871 "../bashcpp/parse.cc"
break;
case 5: // inputunit: error '\n'
#line 127 "../bashcpp/parse.yy"
{
/* Error during parsing. Return NULL command. */
Shell &sh = *the_shell;
sh.global_command = nullptr;
sh.eof_encountered = 0;
/* discard_parser_constructs (1); */
if (sh.interactive && sh.parse_and_execute_level == 0)
{
YYACCEPT;
}
else
{
YYABORT;
}
}
#line 891 "../bashcpp/parse.cc"
break;
case 6: // inputunit: error yacc_EOF
#line 143 "../bashcpp/parse.yy"
{
/* EOF after an error. Do ignoreeof or not. Really
only interesting in non-interactive shells */
Shell &sh = *the_shell;
sh.global_command = nullptr;
if (sh.last_command_exit_value == 0)
sh.last_command_exit_value
= EX_BADUSAGE; /* force error return */
if (sh.interactive && sh.parse_and_execute_level == 0)
{
sh.handle_eof_input_unit ();
YYACCEPT;
}
else
{
YYABORT;
}
}
#line 914 "../bashcpp/parse.cc"
break;
case 7: // inputunit: yacc_EOF
#line 162 "../bashcpp/parse.yy"
{
// Case of EOF seen by itself. Do ignoreeof or not.
Shell &sh = *the_shell;
sh.global_command = nullptr;
sh.handle_eof_input_unit ();
YYACCEPT;
}
#line 926 "../bashcpp/parse.cc"
break;
case 8: // word_list: WORD
#line 172 "../bashcpp/parse.yy"
{
yylhs.value.as < WORD_LIST_PTR > () = WORD_LIST_PTR (yystack_[0].value.as < WORD_DESC_PTR > ());
}
#line 934 "../bashcpp/parse.cc"
break;
case 9: // word_list: word_list WORD
#line 176 "../bashcpp/parse.yy"
{
yylhs.value.as < WORD_LIST_PTR > () = WORD_LIST_PTR (yystack_[0].value.as < WORD_DESC_PTR > (), yystack_[1].value.as < WORD_LIST_PTR > ());
}
#line 942 "../bashcpp/parse.cc"
break;
case 10: // redirection: '>' WORD
#line 182 "../bashcpp/parse.yy"
{
REDIRECTEE source (1);
REDIRECTEE redir (yystack_[0].value.as < WORD_DESC_PTR > ());
yylhs.value.as < REDIRECT_PTR > () = REDIRECT_PTR (
source, r_output_direction, redir, REDIR_NOFLAGS);
}
#line 953 "../bashcpp/parse.cc"
break;
case 11: // redirection: '<' WORD
#line 189 "../bashcpp/parse.yy"
{
REDIRECTEE source (0);
REDIRECTEE redir (yystack_[0].value.as < WORD_DESC_PTR > ());
yylhs.value.as < REDIRECT_PTR > () = REDIRECT_PTR (
source, r_input_direction, redir, REDIR_NOFLAGS);
}
#line 964 "../bashcpp/parse.cc"
break;
case 12: // redirection: NUMBER '>' WORD
#line 196 "../bashcpp/parse.yy"
{
REDIRECTEE source (static_cast<int> (yystack_[2].value.as < int64_t > ()));
REDIRECTEE redir (yystack_[0].value.as < WORD_DESC_PTR > ());
yylhs.value.as < REDIRECT_PTR > () = REDIRECT_PTR (
source, r_output_direction, redir, REDIR_NOFLAGS);
}
#line 975 "../bashcpp/parse.cc"
break;
case 13: // redirection: NUMBER '<' WORD
#line 203 "../bashcpp/parse.yy"
{
REDIRECTEE source (static_cast<int> (yystack_[2].value.as < int64_t > ()));
REDIRECTEE redir (yystack_[0].value.as < WORD_DESC_PTR > ());
yylhs.value.as < REDIRECT_PTR > () = REDIRECT_PTR (
source, r_input_direction, redir, REDIR_NOFLAGS);
}
#line 986 "../bashcpp/parse.cc"
break;
case 14: // redirection: REDIR_WORD '>' WORD
#line 210 "../bashcpp/parse.yy"
{
REDIRECTEE source (yystack_[2].value.as < WORD_DESC_PTR > ());
REDIRECTEE redir (yystack_[0].value.as < WORD_DESC_PTR > ());
yylhs.value.as < REDIRECT_PTR > () = REDIRECT_PTR (
source, r_output_direction, redir, REDIR_VARASSIGN);
}
#line 997 "../bashcpp/parse.cc"
break;
case 15: // redirection: REDIR_WORD '<' WORD
#line 217 "../bashcpp/parse.yy"