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awkgram.c
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/* A Bison parser, made by GNU Bison 3.8. */
/* Bison implementation for Yacc-like parsers in C
Copyright (C) 1984, 1989-1990, 2000-2015, 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. */
/* C LALR(1) parser skeleton written by Richard Stallman, by
simplifying the original so-called "semantic" parser. */
/* 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. */
/* All symbols defined below should begin with yy or YY, to avoid
infringing on user name space. This should be done even for local
variables, as they might otherwise be expanded by user macros.
There are some unavoidable exceptions within include files to
define necessary library symbols; they are noted "INFRINGES ON
USER NAME SPACE" below. */
/* Identify Bison output, and Bison version. */
#define YYBISON 30800
/* Bison version string. */
#define YYBISON_VERSION "3.8"
/* Skeleton name. */
#define YYSKELETON_NAME "yacc.c"
/* Pure parsers. */
#define YYPURE 0
/* Push parsers. */
#define YYPUSH 0
/* Pull parsers. */
#define YYPULL 1
/* First part of user prologue. */
#line 26 "awkgram.y"
#ifdef GAWKDEBUG
#define YYDEBUG 12
#endif
#include "awk.h"
#if defined(__STDC__) && __STDC__ < 1 /* VMS weirdness, maybe elsewhere */
#define signed /**/
#endif
static void yyerror(const char *m, ...) ATTRIBUTE_PRINTF_1;
#define YYERROR_IS_DECLARED 1 /* for bison 3.8. sigh. */
static void error_ln(int line, const char *m, ...) ATTRIBUTE_PRINTF_2;
static void lintwarn_ln(int line, const char *m, ...) ATTRIBUTE_PRINTF_2;
static void warning_ln(int line, const char *m, ...) ATTRIBUTE_PRINTF_2;
static char *get_src_buf(void);
static int yylex(void);
int yyparse(void);
static INSTRUCTION *snode(INSTRUCTION *subn, INSTRUCTION *op);
static char **check_params(char *fname, int pcount, INSTRUCTION *list);
static int install_function(char *fname, INSTRUCTION *fi, INSTRUCTION *plist);
static NODE *mk_rexp(INSTRUCTION *exp);
static void param_sanity(INSTRUCTION *arglist);
static int parms_shadow(INSTRUCTION *pc, bool *shadow);
#ifndef NO_LINT
static int isnoeffect(OPCODE type);
#endif
static INSTRUCTION *make_assignable(INSTRUCTION *ip);
static void dumpintlstr(const char *str, size_t len);
static void dumpintlstr2(const char *str1, size_t len1, const char *str2, size_t len2);
static bool include_source(INSTRUCTION *file, void **srcfile_p);
static bool load_library(INSTRUCTION *file, void **srcfile_p);
static void set_namespace(INSTRUCTION *ns, INSTRUCTION *comment);
static void next_sourcefile(void);
static char *tokexpand(void);
static NODE *set_profile_text(NODE *n, const char *str, size_t len);
static int check_qualified_special(char *token);
static char *qualify_name(const char *name, size_t len);
static INSTRUCTION *trailing_comment;
static INSTRUCTION *outer_comment;
static INSTRUCTION *interblock_comment;
static INSTRUCTION *pending_comment;
static INSTRUCTION *namespace_chain;
#ifdef DEBUG_COMMENTS
static void
debug_print_comment_s(const char *name, INSTRUCTION *comment, int line)
{
if (comment != NULL)
fprintf(stderr, "%d: %s: <%.*s>\n", line, name,
(int) (comment->memory->stlen - 1),
comment->memory->stptr);
}
#define debug_print_comment(comment) \
debug_print_comment_s(# comment, comment, __LINE__)
#endif
#define instruction(t) bcalloc(t, 1, 0)
static INSTRUCTION *mk_program(void);
static INSTRUCTION *append_rule(INSTRUCTION *pattern, INSTRUCTION *action);
static INSTRUCTION *mk_function(INSTRUCTION *fi, INSTRUCTION *def);
static INSTRUCTION *mk_condition(INSTRUCTION *cond, INSTRUCTION *ifp, INSTRUCTION *true_branch,
INSTRUCTION *elsep, INSTRUCTION *false_branch);
static INSTRUCTION *mk_expression_list(INSTRUCTION *list, INSTRUCTION *s1);
static INSTRUCTION *mk_for_loop(INSTRUCTION *forp, INSTRUCTION *init, INSTRUCTION *cond,
INSTRUCTION *incr, INSTRUCTION *body);
static void fix_break_continue(INSTRUCTION *list, INSTRUCTION *b_target, INSTRUCTION *c_target);
static INSTRUCTION *mk_binary(INSTRUCTION *s1, INSTRUCTION *s2, INSTRUCTION *op);
static INSTRUCTION *mk_boolean(INSTRUCTION *left, INSTRUCTION *right, INSTRUCTION *op);
static INSTRUCTION *mk_assignment(INSTRUCTION *lhs, INSTRUCTION *rhs, INSTRUCTION *op);
static INSTRUCTION *mk_getline(INSTRUCTION *op, INSTRUCTION *opt_var, INSTRUCTION *redir, int redirtype);
static int count_expressions(INSTRUCTION **list, bool isarg);
static INSTRUCTION *optimize_assignment(INSTRUCTION *exp);
static void add_lint(INSTRUCTION *list, LINTTYPE linttype);
enum defref { FUNC_DEFINE, FUNC_USE, FUNC_EXT };
static void func_use(const char *name, enum defref how);
static void check_funcs(void);
static ssize_t read_one_line(int fd, void *buffer, size_t count);
static int one_line_close(int fd);
static void merge_comments(INSTRUCTION *c1, INSTRUCTION *c2);
static INSTRUCTION *make_braced_statements(INSTRUCTION *lbrace, INSTRUCTION *stmts, INSTRUCTION *rbrace);
static void add_sign_to_num(NODE *n, char sign);
static bool at_seen = false;
static bool want_source = false;
static bool want_regexp = false; /* lexical scanning kludge */
static enum {
FUNC_HEADER,
FUNC_BODY,
DONT_CHECK
} want_param_names = DONT_CHECK; /* ditto */
static bool in_function; /* parsing kludge */
static int rule = 0;
const char *const ruletab[] = {
"?",
"BEGIN",
"Rule",
"END",
"BEGINFILE",
"ENDFILE",
};
static bool in_print = false; /* lexical scanning kludge for print */
static int in_parens = 0; /* lexical scanning kludge for print */
static int sub_counter = 0; /* array dimension counter for use in delete */
static char *lexptr; /* pointer to next char during parsing */
static char *lexend; /* end of buffer */
static char *lexptr_begin; /* keep track of where we were for error msgs */
static char *lexeme; /* beginning of lexeme for debugging */
static bool lexeof; /* seen EOF for current source? */
static char *thisline = NULL;
static int in_braces = 0; /* count braces for firstline, lastline in an 'action' */
static int lastline = 0;
static int firstline = 0;
static SRCFILE *sourcefile = NULL; /* current program source */
static int lasttok = 0;
static bool eof_warned = false; /* GLOBAL: want warning for each file */
static int break_allowed; /* kludge for break */
static int continue_allowed; /* kludge for continue */
#define END_FILE -1000
#define END_SRC -2000
#define YYDEBUG_LEXER_TEXT (lexeme)
static char *tokstart = NULL;
static char *tok = NULL;
static char *tokend;
int errcount = 0;
extern char *source;
extern int sourceline;
extern SRCFILE *srcfiles;
extern INSTRUCTION *rule_list;
extern int max_args;
extern NODE **args_array;
const char awk_namespace[] = "awk";
const char *current_namespace = awk_namespace;
bool namespace_changed = false;
static INSTRUCTION *rule_block[sizeof(ruletab)/sizeof(ruletab[0])];
static INSTRUCTION *ip_rec;
static INSTRUCTION *ip_newfile;
static INSTRUCTION *ip_atexit = NULL;
static INSTRUCTION *ip_end;
static INSTRUCTION *ip_endfile;
static INSTRUCTION *ip_beginfile;
INSTRUCTION *main_beginfile;
static bool called_from_eval = false;
static inline INSTRUCTION *list_create(INSTRUCTION *x);
static inline INSTRUCTION *list_append(INSTRUCTION *l, INSTRUCTION *x);
static inline INSTRUCTION *list_prepend(INSTRUCTION *l, INSTRUCTION *x);
static inline INSTRUCTION *list_merge(INSTRUCTION *l1, INSTRUCTION *l2);
extern double fmod(double x, double y);
#define YYSTYPE INSTRUCTION *
#line 237 "awkgram.c"
# ifndef YY_CAST
# ifdef __cplusplus
# define YY_CAST(Type, Val) static_cast<Type> (Val)
# define YY_REINTERPRET_CAST(Type, Val) reinterpret_cast<Type> (Val)
# else
# define YY_CAST(Type, Val) ((Type) (Val))
# define YY_REINTERPRET_CAST(Type, Val) ((Type) (Val))
# endif
# endif
# ifndef YY_NULLPTR
# if defined __cplusplus
# if 201103L <= __cplusplus
# define YY_NULLPTR nullptr
# else
# define YY_NULLPTR 0
# endif
# else
# define YY_NULLPTR ((void*)0)
# endif
# endif
/* Debug traces. */
#ifndef YYDEBUG
# define YYDEBUG 0
#endif
#if YYDEBUG
extern int yydebug;
#endif
/* Token kinds. */
#ifndef YYTOKENTYPE
# define YYTOKENTYPE
enum yytokentype
{
YYEMPTY = -2,
YYEOF = 0, /* "end of file" */
YYerror = 256, /* error */
YYUNDEF = 257, /* "invalid token" */
FUNC_CALL = 258, /* FUNC_CALL */
NAME = 259, /* NAME */
REGEXP = 260, /* REGEXP */
FILENAME = 261, /* FILENAME */
YNUMBER = 262, /* YNUMBER */
YSTRING = 263, /* YSTRING */
TYPED_REGEXP = 264, /* TYPED_REGEXP */
RELOP = 265, /* RELOP */
IO_OUT = 266, /* IO_OUT */
IO_IN = 267, /* IO_IN */
ASSIGNOP = 268, /* ASSIGNOP */
ASSIGN = 269, /* ASSIGN */
MATCHOP = 270, /* MATCHOP */
CONCAT_OP = 271, /* CONCAT_OP */
SUBSCRIPT = 272, /* SUBSCRIPT */
LEX_BEGIN = 273, /* LEX_BEGIN */
LEX_END = 274, /* LEX_END */
LEX_IF = 275, /* LEX_IF */
LEX_ELSE = 276, /* LEX_ELSE */
LEX_RETURN = 277, /* LEX_RETURN */
LEX_DELETE = 278, /* LEX_DELETE */
LEX_SWITCH = 279, /* LEX_SWITCH */
LEX_CASE = 280, /* LEX_CASE */
LEX_DEFAULT = 281, /* LEX_DEFAULT */
LEX_WHILE = 282, /* LEX_WHILE */
LEX_DO = 283, /* LEX_DO */
LEX_FOR = 284, /* LEX_FOR */
LEX_BREAK = 285, /* LEX_BREAK */
LEX_CONTINUE = 286, /* LEX_CONTINUE */
LEX_PRINT = 287, /* LEX_PRINT */
LEX_PRINTF = 288, /* LEX_PRINTF */
LEX_NEXT = 289, /* LEX_NEXT */
LEX_EXIT = 290, /* LEX_EXIT */
LEX_FUNCTION = 291, /* LEX_FUNCTION */
LEX_BEGINFILE = 292, /* LEX_BEGINFILE */
LEX_ENDFILE = 293, /* LEX_ENDFILE */
LEX_GETLINE = 294, /* LEX_GETLINE */
LEX_NEXTFILE = 295, /* LEX_NEXTFILE */
LEX_IN = 296, /* LEX_IN */
LEX_AND = 297, /* LEX_AND */
LEX_OR = 298, /* LEX_OR */
INCREMENT = 299, /* INCREMENT */
DECREMENT = 300, /* DECREMENT */
LEX_BUILTIN = 301, /* LEX_BUILTIN */
LEX_LENGTH = 302, /* LEX_LENGTH */
LEX_EOF = 303, /* LEX_EOF */
LEX_INCLUDE = 304, /* LEX_INCLUDE */
LEX_EVAL = 305, /* LEX_EVAL */
LEX_LOAD = 306, /* LEX_LOAD */
LEX_NAMESPACE = 307, /* LEX_NAMESPACE */
NEWLINE = 308, /* NEWLINE */
SLASH_BEFORE_EQUAL = 309, /* SLASH_BEFORE_EQUAL */
UNARY = 310 /* UNARY */
};
typedef enum yytokentype yytoken_kind_t;
#endif
/* Token kinds. */
#define YYEMPTY -2
#define YYEOF 0
#define YYerror 256
#define YYUNDEF 257
#define FUNC_CALL 258
#define NAME 259
#define REGEXP 260
#define FILENAME 261
#define YNUMBER 262
#define YSTRING 263
#define TYPED_REGEXP 264
#define RELOP 265
#define IO_OUT 266
#define IO_IN 267
#define ASSIGNOP 268
#define ASSIGN 269
#define MATCHOP 270
#define CONCAT_OP 271
#define SUBSCRIPT 272
#define LEX_BEGIN 273
#define LEX_END 274
#define LEX_IF 275
#define LEX_ELSE 276
#define LEX_RETURN 277
#define LEX_DELETE 278
#define LEX_SWITCH 279
#define LEX_CASE 280
#define LEX_DEFAULT 281
#define LEX_WHILE 282
#define LEX_DO 283
#define LEX_FOR 284
#define LEX_BREAK 285
#define LEX_CONTINUE 286
#define LEX_PRINT 287
#define LEX_PRINTF 288
#define LEX_NEXT 289
#define LEX_EXIT 290
#define LEX_FUNCTION 291
#define LEX_BEGINFILE 292
#define LEX_ENDFILE 293
#define LEX_GETLINE 294
#define LEX_NEXTFILE 295
#define LEX_IN 296
#define LEX_AND 297
#define LEX_OR 298
#define INCREMENT 299
#define DECREMENT 300
#define LEX_BUILTIN 301
#define LEX_LENGTH 302
#define LEX_EOF 303
#define LEX_INCLUDE 304
#define LEX_EVAL 305
#define LEX_LOAD 306
#define LEX_NAMESPACE 307
#define NEWLINE 308
#define SLASH_BEFORE_EQUAL 309
#define UNARY 310
/* Value type. */
#if ! defined YYSTYPE && ! defined YYSTYPE_IS_DECLARED
typedef int YYSTYPE;
# define YYSTYPE_IS_TRIVIAL 1
# define YYSTYPE_IS_DECLARED 1
#endif
extern YYSTYPE yylval;
#if !defined yyerror && !defined YYERROR_IS_DECLARED
void yyerror (const char *msg);
#endif
#if !defined yylex && !defined YYLEX_IS_DECLARED
int yylex (void);
#endif
int yyparse (void);
/* Symbol kind. */
enum yysymbol_kind_t
{
YYSYMBOL_YYEMPTY = -2,
YYSYMBOL_YYEOF = 0, /* "end of file" */
YYSYMBOL_YYerror = 1, /* error */
YYSYMBOL_YYUNDEF = 2, /* "invalid token" */
YYSYMBOL_FUNC_CALL = 3, /* FUNC_CALL */
YYSYMBOL_NAME = 4, /* NAME */
YYSYMBOL_REGEXP = 5, /* REGEXP */
YYSYMBOL_FILENAME = 6, /* FILENAME */
YYSYMBOL_YNUMBER = 7, /* YNUMBER */
YYSYMBOL_YSTRING = 8, /* YSTRING */
YYSYMBOL_TYPED_REGEXP = 9, /* TYPED_REGEXP */
YYSYMBOL_RELOP = 10, /* RELOP */
YYSYMBOL_IO_OUT = 11, /* IO_OUT */
YYSYMBOL_IO_IN = 12, /* IO_IN */
YYSYMBOL_ASSIGNOP = 13, /* ASSIGNOP */
YYSYMBOL_ASSIGN = 14, /* ASSIGN */
YYSYMBOL_MATCHOP = 15, /* MATCHOP */
YYSYMBOL_CONCAT_OP = 16, /* CONCAT_OP */
YYSYMBOL_SUBSCRIPT = 17, /* SUBSCRIPT */
YYSYMBOL_LEX_BEGIN = 18, /* LEX_BEGIN */
YYSYMBOL_LEX_END = 19, /* LEX_END */
YYSYMBOL_LEX_IF = 20, /* LEX_IF */
YYSYMBOL_LEX_ELSE = 21, /* LEX_ELSE */
YYSYMBOL_LEX_RETURN = 22, /* LEX_RETURN */
YYSYMBOL_LEX_DELETE = 23, /* LEX_DELETE */
YYSYMBOL_LEX_SWITCH = 24, /* LEX_SWITCH */
YYSYMBOL_LEX_CASE = 25, /* LEX_CASE */
YYSYMBOL_LEX_DEFAULT = 26, /* LEX_DEFAULT */
YYSYMBOL_LEX_WHILE = 27, /* LEX_WHILE */
YYSYMBOL_LEX_DO = 28, /* LEX_DO */
YYSYMBOL_LEX_FOR = 29, /* LEX_FOR */
YYSYMBOL_LEX_BREAK = 30, /* LEX_BREAK */
YYSYMBOL_LEX_CONTINUE = 31, /* LEX_CONTINUE */
YYSYMBOL_LEX_PRINT = 32, /* LEX_PRINT */
YYSYMBOL_LEX_PRINTF = 33, /* LEX_PRINTF */
YYSYMBOL_LEX_NEXT = 34, /* LEX_NEXT */
YYSYMBOL_LEX_EXIT = 35, /* LEX_EXIT */
YYSYMBOL_LEX_FUNCTION = 36, /* LEX_FUNCTION */
YYSYMBOL_LEX_BEGINFILE = 37, /* LEX_BEGINFILE */
YYSYMBOL_LEX_ENDFILE = 38, /* LEX_ENDFILE */
YYSYMBOL_LEX_GETLINE = 39, /* LEX_GETLINE */
YYSYMBOL_LEX_NEXTFILE = 40, /* LEX_NEXTFILE */
YYSYMBOL_LEX_IN = 41, /* LEX_IN */
YYSYMBOL_LEX_AND = 42, /* LEX_AND */
YYSYMBOL_LEX_OR = 43, /* LEX_OR */
YYSYMBOL_INCREMENT = 44, /* INCREMENT */
YYSYMBOL_DECREMENT = 45, /* DECREMENT */
YYSYMBOL_LEX_BUILTIN = 46, /* LEX_BUILTIN */
YYSYMBOL_LEX_LENGTH = 47, /* LEX_LENGTH */
YYSYMBOL_LEX_EOF = 48, /* LEX_EOF */
YYSYMBOL_LEX_INCLUDE = 49, /* LEX_INCLUDE */
YYSYMBOL_LEX_EVAL = 50, /* LEX_EVAL */
YYSYMBOL_LEX_LOAD = 51, /* LEX_LOAD */
YYSYMBOL_LEX_NAMESPACE = 52, /* LEX_NAMESPACE */
YYSYMBOL_NEWLINE = 53, /* NEWLINE */
YYSYMBOL_SLASH_BEFORE_EQUAL = 54, /* SLASH_BEFORE_EQUAL */
YYSYMBOL_55_ = 55, /* '?' */
YYSYMBOL_56_ = 56, /* ':' */
YYSYMBOL_57_ = 57, /* ',' */
YYSYMBOL_58_ = 58, /* '<' */
YYSYMBOL_59_ = 59, /* '>' */
YYSYMBOL_60_ = 60, /* '+' */
YYSYMBOL_61_ = 61, /* '-' */
YYSYMBOL_62_ = 62, /* '*' */
YYSYMBOL_63_ = 63, /* '/' */
YYSYMBOL_64_ = 64, /* '%' */
YYSYMBOL_65_ = 65, /* '!' */
YYSYMBOL_UNARY = 66, /* UNARY */
YYSYMBOL_67_ = 67, /* '^' */
YYSYMBOL_68_ = 68, /* '$' */
YYSYMBOL_69_ = 69, /* '(' */
YYSYMBOL_70_ = 70, /* ')' */
YYSYMBOL_71_ = 71, /* '@' */
YYSYMBOL_72_ = 72, /* '[' */
YYSYMBOL_73_ = 73, /* ']' */
YYSYMBOL_74_ = 74, /* '{' */
YYSYMBOL_75_ = 75, /* '}' */
YYSYMBOL_76_ = 76, /* ';' */
YYSYMBOL_YYACCEPT = 77, /* $accept */
YYSYMBOL_program = 78, /* program */
YYSYMBOL_rule = 79, /* rule */
YYSYMBOL_source = 80, /* source */
YYSYMBOL_library = 81, /* library */
YYSYMBOL_namespace = 82, /* namespace */
YYSYMBOL_pattern = 83, /* pattern */
YYSYMBOL_action = 84, /* action */
YYSYMBOL_func_name = 85, /* func_name */
YYSYMBOL_lex_builtin = 86, /* lex_builtin */
YYSYMBOL_function_prologue = 87, /* function_prologue */
YYSYMBOL_88_1 = 88, /* $@1 */
YYSYMBOL_regexp = 89, /* regexp */
YYSYMBOL_90_2 = 90, /* $@2 */
YYSYMBOL_typed_regexp = 91, /* typed_regexp */
YYSYMBOL_a_slash = 92, /* a_slash */
YYSYMBOL_statements = 93, /* statements */
YYSYMBOL_statement_term = 94, /* statement_term */
YYSYMBOL_statement = 95, /* statement */
YYSYMBOL_non_compound_stmt = 96, /* non_compound_stmt */
YYSYMBOL_97_3 = 97, /* $@3 */
YYSYMBOL_simple_stmt = 98, /* simple_stmt */
YYSYMBOL_99_4 = 99, /* $@4 */
YYSYMBOL_100_5 = 100, /* $@5 */
YYSYMBOL_opt_simple_stmt = 101, /* opt_simple_stmt */
YYSYMBOL_case_statements = 102, /* case_statements */
YYSYMBOL_case_statement = 103, /* case_statement */
YYSYMBOL_case_value = 104, /* case_value */
YYSYMBOL_print = 105, /* print */
YYSYMBOL_print_expression_list = 106, /* print_expression_list */
YYSYMBOL_output_redir = 107, /* output_redir */
YYSYMBOL_108_6 = 108, /* $@6 */
YYSYMBOL_if_statement = 109, /* if_statement */
YYSYMBOL_nls = 110, /* nls */
YYSYMBOL_opt_nls = 111, /* opt_nls */
YYSYMBOL_input_redir = 112, /* input_redir */
YYSYMBOL_opt_param_list = 113, /* opt_param_list */
YYSYMBOL_param_list = 114, /* param_list */
YYSYMBOL_opt_exp = 115, /* opt_exp */
YYSYMBOL_opt_expression_list = 116, /* opt_expression_list */
YYSYMBOL_expression_list = 117, /* expression_list */
YYSYMBOL_opt_fcall_expression_list = 118, /* opt_fcall_expression_list */
YYSYMBOL_fcall_expression_list = 119, /* fcall_expression_list */
YYSYMBOL_fcall_exp = 120, /* fcall_exp */
YYSYMBOL_opt_fcall_exp = 121, /* opt_fcall_exp */
YYSYMBOL_exp = 122, /* exp */
YYSYMBOL_assign_operator = 123, /* assign_operator */
YYSYMBOL_relop_or_less = 124, /* relop_or_less */
YYSYMBOL_a_relop = 125, /* a_relop */
YYSYMBOL_common_exp = 126, /* common_exp */
YYSYMBOL_simp_exp = 127, /* simp_exp */
YYSYMBOL_simp_exp_nc = 128, /* simp_exp_nc */
YYSYMBOL_non_post_simp_exp = 129, /* non_post_simp_exp */
YYSYMBOL_func_call = 130, /* func_call */
YYSYMBOL_direct_func_call = 131, /* direct_func_call */
YYSYMBOL_opt_variable = 132, /* opt_variable */
YYSYMBOL_delete_subscript_list = 133, /* delete_subscript_list */
YYSYMBOL_delete_subscript = 134, /* delete_subscript */
YYSYMBOL_delete_exp_list = 135, /* delete_exp_list */
YYSYMBOL_bracketed_exp_list = 136, /* bracketed_exp_list */
YYSYMBOL_subscript = 137, /* subscript */
YYSYMBOL_subscript_list = 138, /* subscript_list */
YYSYMBOL_simple_variable = 139, /* simple_variable */
YYSYMBOL_variable = 140, /* variable */
YYSYMBOL_opt_incdec = 141, /* opt_incdec */
YYSYMBOL_l_brace = 142, /* l_brace */
YYSYMBOL_r_brace = 143, /* r_brace */
YYSYMBOL_r_paren = 144, /* r_paren */
YYSYMBOL_opt_semi = 145, /* opt_semi */
YYSYMBOL_semi = 146, /* semi */
YYSYMBOL_colon = 147, /* colon */
YYSYMBOL_comma = 148 /* comma */
};
typedef enum yysymbol_kind_t yysymbol_kind_t;
#ifdef short
# undef short
#endif
/* On compilers that do not define __PTRDIFF_MAX__ etc., make sure
<limits.h> and (if available) <stdint.h> are included
so that the code can choose integer types of a good width. */
#ifndef __PTRDIFF_MAX__
# include <limits.h> /* INFRINGES ON USER NAME SPACE */
# if defined __STDC_VERSION__ && 199901 <= __STDC_VERSION__
# include <stdint.h> /* INFRINGES ON USER NAME SPACE */
# define YY_STDINT_H
# endif
#endif
/* Narrow types that promote to a signed type and that can represent a
signed or unsigned integer of at least N bits. In tables they can
save space and decrease cache pressure. Promoting to a signed type
helps avoid bugs in integer arithmetic. */
#ifdef __INT_LEAST8_MAX__
typedef __INT_LEAST8_TYPE__ yytype_int8;
#elif defined YY_STDINT_H
typedef int_least8_t yytype_int8;
#else
typedef signed char yytype_int8;
#endif
#ifdef __INT_LEAST16_MAX__
typedef __INT_LEAST16_TYPE__ yytype_int16;
#elif defined YY_STDINT_H
typedef int_least16_t yytype_int16;
#else
typedef short yytype_int16;
#endif
/* Work around bug in HP-UX 11.23, which defines these macros
incorrectly for preprocessor constants. This workaround can likely
be removed in 2023, as HPE has promised support for HP-UX 11.23
(aka HP-UX 11i v2) only through the end of 2022; see Table 2 of
<https://h20195.www2.hpe.com/V2/getpdf.aspx/4AA4-7673ENW.pdf>. */
#ifdef __hpux
# undef UINT_LEAST8_MAX
# undef UINT_LEAST16_MAX
# define UINT_LEAST8_MAX 255
# define UINT_LEAST16_MAX 65535
#endif
#if defined __UINT_LEAST8_MAX__ && __UINT_LEAST8_MAX__ <= __INT_MAX__
typedef __UINT_LEAST8_TYPE__ yytype_uint8;
#elif (!defined __UINT_LEAST8_MAX__ && defined YY_STDINT_H \
&& UINT_LEAST8_MAX <= INT_MAX)
typedef uint_least8_t yytype_uint8;
#elif !defined __UINT_LEAST8_MAX__ && UCHAR_MAX <= INT_MAX
typedef unsigned char yytype_uint8;
#else
typedef short yytype_uint8;
#endif
#if defined __UINT_LEAST16_MAX__ && __UINT_LEAST16_MAX__ <= __INT_MAX__
typedef __UINT_LEAST16_TYPE__ yytype_uint16;
#elif (!defined __UINT_LEAST16_MAX__ && defined YY_STDINT_H \
&& UINT_LEAST16_MAX <= INT_MAX)
typedef uint_least16_t yytype_uint16;
#elif !defined __UINT_LEAST16_MAX__ && USHRT_MAX <= INT_MAX
typedef unsigned short yytype_uint16;
#else
typedef int yytype_uint16;
#endif
#ifndef YYPTRDIFF_T
# if defined __PTRDIFF_TYPE__ && defined __PTRDIFF_MAX__
# define YYPTRDIFF_T __PTRDIFF_TYPE__
# define YYPTRDIFF_MAXIMUM __PTRDIFF_MAX__
# elif defined PTRDIFF_MAX
# ifndef ptrdiff_t
# include <stddef.h> /* INFRINGES ON USER NAME SPACE */
# endif
# define YYPTRDIFF_T ptrdiff_t
# define YYPTRDIFF_MAXIMUM PTRDIFF_MAX
# else
# define YYPTRDIFF_T long
# define YYPTRDIFF_MAXIMUM LONG_MAX
# endif
#endif
#ifndef YYSIZE_T
# ifdef __SIZE_TYPE__
# define YYSIZE_T __SIZE_TYPE__
# elif defined size_t
# define YYSIZE_T size_t
# elif defined __STDC_VERSION__ && 199901 <= __STDC_VERSION__
# include <stddef.h> /* INFRINGES ON USER NAME SPACE */
# define YYSIZE_T size_t
# else
# define YYSIZE_T unsigned
# endif
#endif
#define YYSIZE_MAXIMUM \
YY_CAST (YYPTRDIFF_T, \
(YYPTRDIFF_MAXIMUM < YY_CAST (YYSIZE_T, -1) \
? YYPTRDIFF_MAXIMUM \
: YY_CAST (YYSIZE_T, -1)))
#define YYSIZEOF(X) YY_CAST (YYPTRDIFF_T, sizeof (X))
/* Stored state numbers (used for stacks). */
typedef yytype_int16 yy_state_t;
/* State numbers in computations. */
typedef int yy_state_fast_t;
#ifndef YY_
# if defined YYENABLE_NLS && YYENABLE_NLS
# if ENABLE_NLS
# include <libintl.h> /* INFRINGES ON USER NAME SPACE */
# define YY_(Msgid) dgettext ("bison-runtime", Msgid)
# endif
# endif
# ifndef YY_
# define YY_(Msgid) Msgid
# endif
#endif
#ifndef YY_ATTRIBUTE_PURE
# if defined __GNUC__ && 2 < __GNUC__ + (96 <= __GNUC_MINOR__)
# define YY_ATTRIBUTE_PURE __attribute__ ((__pure__))
# else
# define YY_ATTRIBUTE_PURE
# endif
#endif
#ifndef YY_ATTRIBUTE_UNUSED
# if defined __GNUC__ && 2 < __GNUC__ + (7 <= __GNUC_MINOR__)
# define YY_ATTRIBUTE_UNUSED __attribute__ ((__unused__))
# else
# define YY_ATTRIBUTE_UNUSED
# endif
#endif
/* Suppress unused-variable warnings by "using" E. */
#if ! defined lint || defined __GNUC__
# define YY_USE(E) ((void) (E))
#else
# define YY_USE(E) /* empty */
#endif
/* Suppress an incorrect diagnostic about yylval being uninitialized. */
#if defined __GNUC__ && ! defined __ICC && 406 <= __GNUC__ * 100 + __GNUC_MINOR__
# if __GNUC__ * 100 + __GNUC_MINOR__ < 407
# define YY_IGNORE_MAYBE_UNINITIALIZED_BEGIN \
_Pragma ("GCC diagnostic push") \
_Pragma ("GCC diagnostic ignored \"-Wuninitialized\"")
# else
# define YY_IGNORE_MAYBE_UNINITIALIZED_BEGIN \
_Pragma ("GCC diagnostic push") \
_Pragma ("GCC diagnostic ignored \"-Wuninitialized\"") \
_Pragma ("GCC diagnostic ignored \"-Wmaybe-uninitialized\"")
# endif
# define YY_IGNORE_MAYBE_UNINITIALIZED_END \
_Pragma ("GCC diagnostic pop")
#else
# define YY_INITIAL_VALUE(Value) Value
#endif
#ifndef YY_IGNORE_MAYBE_UNINITIALIZED_BEGIN
# define YY_IGNORE_MAYBE_UNINITIALIZED_BEGIN
# define YY_IGNORE_MAYBE_UNINITIALIZED_END
#endif
#ifndef YY_INITIAL_VALUE
# define YY_INITIAL_VALUE(Value) /* Nothing. */
#endif
#if defined __cplusplus && defined __GNUC__ && ! defined __ICC && 6 <= __GNUC__
# define YY_IGNORE_USELESS_CAST_BEGIN \
_Pragma ("GCC diagnostic push") \
_Pragma ("GCC diagnostic ignored \"-Wuseless-cast\"")
# define YY_IGNORE_USELESS_CAST_END \
_Pragma ("GCC diagnostic pop")
#endif
#ifndef YY_IGNORE_USELESS_CAST_BEGIN
# define YY_IGNORE_USELESS_CAST_BEGIN
# define YY_IGNORE_USELESS_CAST_END
#endif
#define YY_ASSERT(E) ((void) (0 && (E)))
#if !defined yyoverflow
/* The parser invokes alloca or malloc; define the necessary symbols. */
# ifdef YYSTACK_USE_ALLOCA
# if YYSTACK_USE_ALLOCA
# ifdef __GNUC__
# define YYSTACK_ALLOC __builtin_alloca
# elif defined __BUILTIN_VA_ARG_INCR
# include <alloca.h> /* INFRINGES ON USER NAME SPACE */
# elif defined _AIX
# define YYSTACK_ALLOC __alloca
# elif defined _MSC_VER
# include <malloc.h> /* INFRINGES ON USER NAME SPACE */
# define alloca _alloca
# else
# define YYSTACK_ALLOC alloca
# if ! defined _ALLOCA_H && ! defined EXIT_SUCCESS
# include <stdlib.h> /* INFRINGES ON USER NAME SPACE */
/* Use EXIT_SUCCESS as a witness for stdlib.h. */
# ifndef EXIT_SUCCESS
# define EXIT_SUCCESS 0
# endif
# endif
# endif
# endif
# endif
# ifdef YYSTACK_ALLOC
/* Pacify GCC's 'empty if-body' warning. */
# define YYSTACK_FREE(Ptr) do { /* empty */; } while (0)
# ifndef YYSTACK_ALLOC_MAXIMUM
/* The OS might guarantee only one guard page at the bottom of the stack,
and a page size can be as small as 4096 bytes. So we cannot safely
invoke alloca (N) if N exceeds 4096. Use a slightly smaller number
to allow for a few compiler-allocated temporary stack slots. */
# define YYSTACK_ALLOC_MAXIMUM 4032 /* reasonable circa 2006 */
# endif
# else
# define YYSTACK_ALLOC YYMALLOC
# define YYSTACK_FREE YYFREE
# ifndef YYSTACK_ALLOC_MAXIMUM
# define YYSTACK_ALLOC_MAXIMUM YYSIZE_MAXIMUM
# endif
# if (defined __cplusplus && ! defined EXIT_SUCCESS \
&& ! ((defined YYMALLOC || defined malloc) \
&& (defined YYFREE || defined free)))
# include <stdlib.h> /* INFRINGES ON USER NAME SPACE */
# ifndef EXIT_SUCCESS
# define EXIT_SUCCESS 0
# endif
# endif
# ifndef YYMALLOC
# define YYMALLOC malloc
# if ! defined malloc && ! defined EXIT_SUCCESS
void *malloc (YYSIZE_T); /* INFRINGES ON USER NAME SPACE */
# endif
# endif
# ifndef YYFREE
# define YYFREE free
# if ! defined free && ! defined EXIT_SUCCESS
void free (void *); /* INFRINGES ON USER NAME SPACE */
# endif
# endif
# endif
#endif /* !defined yyoverflow */
#if (! defined yyoverflow \
&& (! defined __cplusplus \
|| (defined YYSTYPE_IS_TRIVIAL && YYSTYPE_IS_TRIVIAL)))
/* A type that is properly aligned for any stack member. */
union yyalloc
{
yy_state_t yyss_alloc;
YYSTYPE yyvs_alloc;
};
/* The size of the maximum gap between one aligned stack and the next. */
# define YYSTACK_GAP_MAXIMUM (YYSIZEOF (union yyalloc) - 1)
/* The size of an array large to enough to hold all stacks, each with
N elements. */
# define YYSTACK_BYTES(N) \
((N) * (YYSIZEOF (yy_state_t) + YYSIZEOF (YYSTYPE)) \
+ YYSTACK_GAP_MAXIMUM)
# define YYCOPY_NEEDED 1
/* Relocate STACK from its old location to the new one. The
local variables YYSIZE and YYSTACKSIZE give the old and new number of
elements in the stack, and YYPTR gives the new location of the
stack. Advance YYPTR to a properly aligned location for the next
stack. */
# define YYSTACK_RELOCATE(Stack_alloc, Stack) \
do \
{ \
YYPTRDIFF_T yynewbytes; \
YYCOPY (&yyptr->Stack_alloc, Stack, yysize); \
Stack = &yyptr->Stack_alloc; \
yynewbytes = yystacksize * YYSIZEOF (*Stack) + YYSTACK_GAP_MAXIMUM; \
yyptr += yynewbytes / YYSIZEOF (*yyptr); \
} \
while (0)
#endif
#if defined YYCOPY_NEEDED && YYCOPY_NEEDED
/* Copy COUNT objects from SRC to DST. The source and destination do
not overlap. */
# ifndef YYCOPY
# if defined __GNUC__ && 1 < __GNUC__
# define YYCOPY(Dst, Src, Count) \
__builtin_memcpy (Dst, Src, YY_CAST (YYSIZE_T, (Count)) * sizeof (*(Src)))
# else
# define YYCOPY(Dst, Src, Count) \
do \
{ \
YYPTRDIFF_T yyi; \
for (yyi = 0; yyi < (Count); yyi++) \
(Dst)[yyi] = (Src)[yyi]; \
} \
while (0)
# endif
# endif
#endif /* !YYCOPY_NEEDED */
/* YYFINAL -- State number of the termination state. */
#define YYFINAL 2
/* YYLAST -- Last index in YYTABLE. */
#define YYLAST 1200
/* YYNTOKENS -- Number of terminals. */
#define YYNTOKENS 77
/* YYNNTS -- Number of nonterminals. */
#define YYNNTS 72
/* YYNRULES -- Number of rules. */
#define YYNRULES 209
/* YYNSTATES -- Number of states. */
#define YYNSTATES 356
/* YYMAXUTOK -- Last valid token kind. */
#define YYMAXUTOK 310
/* YYTRANSLATE(TOKEN-NUM) -- Symbol number corresponding to TOKEN-NUM
as returned by yylex, with out-of-bounds checking. */
#define YYTRANSLATE(YYX) \
(0 <= (YYX) && (YYX) <= YYMAXUTOK \
? YY_CAST (yysymbol_kind_t, yytranslate[YYX]) \
: YYSYMBOL_YYUNDEF)
/* YYTRANSLATE[TOKEN-NUM] -- Symbol number corresponding to TOKEN-NUM
as returned by yylex. */
static const yytype_int8 yytranslate[] =
{
0, 2, 2, 2, 2, 2, 2, 2, 2, 2,
2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
2, 2, 2, 65, 2, 2, 68, 64, 2, 2,
69, 70, 62, 60, 57, 61, 2, 63, 2, 2,
2, 2, 2, 2, 2, 2, 2, 2, 56, 76,
58, 2, 59, 55, 71, 2, 2, 2, 2, 2,
2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
2, 72, 2, 73, 67, 2, 2, 2, 2, 2,
2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
2, 2, 2, 74, 2, 75, 2, 2, 2, 2,
2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
2, 2, 2, 2, 2, 2, 1, 2, 3, 4,
5, 6, 7, 8, 9, 10, 11, 12, 13, 14,
15, 16, 17, 18, 19, 20, 21, 22, 23, 24,
25, 26, 27, 28, 29, 30, 31, 32, 33, 34,
35, 36, 37, 38, 39, 40, 41, 42, 43, 44,
45, 46, 47, 48, 49, 50, 51, 52, 53, 54,
66
};
#if YYDEBUG
/* YYRLINE[YYN] -- Source line where rule number YYN was defined. */
static const yytype_int16 yyrline[] =
{
0, 233, 233, 234, 239, 249, 253, 265, 273, 287,
298, 308, 318, 331, 341, 343, 348, 358, 360, 365,
367, 369, 375, 379, 384, 414, 426, 438, 444, 453,
471, 472, 483, 489, 497, 498, 502, 502, 536, 535,
569, 584, 586, 591, 592, 612, 617, 618, 622, 633,
638, 645, 753, 804, 854, 980, 1002, 1023, 1033, 1043,
1053, 1064, 1077, 1095, 1094, 1111, 1129, 1129, 1231, 1231,
1264, 1294, 1302, 1303, 1309, 1310, 1317, 1322, 1335, 1350,
1352, 1360, 1367, 1369, 1377, 1386, 1388, 1397, 1398, 1406,
1411, 1411, 1424, 1431, 1444, 1448, 1470, 1471, 1477, 1478,
1487, 1488, 1493, 1498, 1515, 1517, 1519, 1526, 1527, 1533,
1534, 1539, 1541, 1548, 1550, 1558, 1563, 1574, 1575, 1580,
1582, 1589, 1591, 1599, 1604, 1614, 1615, 1620, 1621, 1626,
1633, 1637, 1639, 1641, 1654, 1671, 1681, 1688, 1690, 1695,
1697, 1699, 1707, 1709, 1714, 1716, 1721, 1723, 1725, 1782,
1784, 1786, 1788, 1790, 1792, 1794, 1796, 1810, 1815, 1820,
1846, 1852, 1854, 1856, 1858, 1860, 1862, 1867, 1871, 1903,
1911, 1917, 1923, 1936, 1937, 1938, 1943, 1948, 1952, 1956,
1971, 1992, 1997, 2034, 2071, 2072, 2078, 2079, 2084, 2086,
2093, 2110, 2127, 2129, 2136, 2141, 2147, 2158, 2170, 2179,
2183, 2188, 2192, 2196, 2200, 2205, 2206, 2210, 2214, 2218
};
#endif
/** Accessing symbol of state STATE. */
#define YY_ACCESSING_SYMBOL(State) YY_CAST (yysymbol_kind_t, yystos[State])
#if YYDEBUG || 0
/* The user-facing name of the symbol whose (internal) number is
YYSYMBOL. No bounds checking. */
static const char *yysymbol_name (yysymbol_kind_t yysymbol) YY_ATTRIBUTE_UNUSED;
/* YYTNAME[SYMBOL-NUM] -- String name of the symbol SYMBOL-NUM.
First, the terminals, then, starting at YYNTOKENS, nonterminals. */
static const char *const yytname[] =
{
"\"end of file\"", "error", "\"invalid token\"", "FUNC_CALL", "NAME",
"REGEXP", "FILENAME", "YNUMBER", "YSTRING", "TYPED_REGEXP", "RELOP",
"IO_OUT", "IO_IN", "ASSIGNOP", "ASSIGN", "MATCHOP", "CONCAT_OP",
"SUBSCRIPT", "LEX_BEGIN", "LEX_END", "LEX_IF", "LEX_ELSE", "LEX_RETURN",
"LEX_DELETE", "LEX_SWITCH", "LEX_CASE", "LEX_DEFAULT", "LEX_WHILE",
"LEX_DO", "LEX_FOR", "LEX_BREAK", "LEX_CONTINUE", "LEX_PRINT",
"LEX_PRINTF", "LEX_NEXT", "LEX_EXIT", "LEX_FUNCTION", "LEX_BEGINFILE",
"LEX_ENDFILE", "LEX_GETLINE", "LEX_NEXTFILE", "LEX_IN", "LEX_AND",