diff --git a/.circleci/config.yml b/.circleci/config.yml index 0421308..f7e46be 100644 --- a/.circleci/config.yml +++ b/.circleci/config.yml @@ -11,7 +11,7 @@ jobs: name: Install dependencies command: | sudo apt-get update - sudo apt-get install -qy make gcc libtool autoconf automake bison libreadline-dev + sudo apt-get install -qy make gcc libtool autoconf automake libreadline-dev - run: name: Autotools diff --git a/.gitattributes b/.gitattributes index 417e98f..3a9e4d5 100644 --- a/.gitattributes +++ b/.gitattributes @@ -1 +1,4 @@ test/tests/trip.es text diff +y.tab.c -diff +y.tab.h -diff +token.h -diff diff --git a/.gitignore b/.gitignore index d2508b8..0819fea 100644 --- a/.gitignore +++ b/.gitignore @@ -34,13 +34,13 @@ config.h # yacc -y.* +y.output +y.tab.h # es initial.c sigmsgs.c -token.h es esdump testrun diff --git a/Makefile.in b/Makefile.in index c81645b..50c3445 100644 --- a/Makefile.in +++ b/Makefile.in @@ -34,10 +34,7 @@ mandir = @mandir@ bindir = @bindir@ srcdir = @srcdir@ testdir = @srcdir@/test - VPATH = $(srcdir) - - SHELL = /bin/sh CC = @CC@ YACC = @YACC@ @@ -52,7 +49,7 @@ LDFLAGS = @LDFLAGS@ $(ADDLDFLAGS) LIBS = @READLINE_LIBS@ @LIBS@ $(ADDLIBS) HFILES = config.h es.h gc.h input.h prim.h print.h sigmsgs.h \ - stdenv.h syntax.h term.h var.h + stdenv.h syntax.h term.h token.h var.h CFILES = access.c closure.c conv.c dict.c eval.c except.c fd.c gc.c glob.c \ glom.c input.c heredoc.c history.c list.c main.c match.c open.c opt.c \ prim-ctl.c prim-etc.c prim-io.c prim-sys.c prim.c print.c proc.c \ @@ -64,7 +61,7 @@ OFILES = access.o closure.o conv.o dict.o eval.o except.o fd.o gc.o glob.o \ sigmsgs.o signal.o split.o status.o str.o syntax.o term.o token.o \ tree.o util.o var.o vec.o version.o y.tab.o OTHER = Makefile parse.y mksignal -GEN = esdump y.tab.c y.tab.h y.output token.h sigmsgs.c initial.c +GEN = esdump y.tab.h y.output sigmsgs.c initial.c SIGFILES = @SIGFILES@ @@ -104,14 +101,12 @@ testclean : src : @echo $(OTHER) $(CFILES) $(HFILES) -y.tab.h : parse.y - $(YACC) -vd $(srcdir)/parse.y - -y.tab.c : y.tab.h - -token.h : y.tab.h +token.h : parse.y + $(YACC) -vd -b y $(srcdir)/parse.y -cmp -s y.tab.h token.h || cp y.tab.h token.h +y.tab.c : token.h + initial.c : esdump $(srcdir)/initial.es ./esdump < $(srcdir)/initial.es > initial.c @@ -134,9 +129,9 @@ fd.o : fd.c es.h config.h stdenv.h gc.o : gc.c es.h config.h stdenv.h gc.h glob.o : glob.c es.h config.h stdenv.h gc.h glom.o : glom.c es.h config.h stdenv.h gc.h -input.o : input.c es.h config.h stdenv.h input.h -heredoc.o : heredoc.c es.h config.h stdenv.h gc.h input.h syntax.h -history.o : history.c es.h config.h stdenv.h gc.h input.h +input.o : input.c es.h config.h stdenv.h input.h token.h +heredoc.o : heredoc.c es.h config.h stdenv.h gc.h input.h syntax.h token.h +history.o : history.c es.h config.h stdenv.h gc.h input.h token.h list.o : list.c es.h config.h stdenv.h gc.h main.o : main.c es.h config.h stdenv.h match.o : match.c es.h config.h stdenv.h diff --git a/configure.ac b/configure.ac index 3977c61..0729937 100644 --- a/configure.ac +++ b/configure.ac @@ -22,6 +22,8 @@ dnl Build configuration. AC_ARG_ENABLE(strict, AS_HELP_STRING([--enable-strict], [enable strict compiler flags for testing and debugging; not all compilers support these]), opt_strict_mode=$enableval, opt_strict_mode=no) +AC_ARG_VAR(YACC, [yacc command. es requires bison, byacc, or something else that supports generating pure parsers.]) + if test $opt_strict_mode = yes; then AC_SUBST([STRICT_CFLAGS], ["-ansi -pedantic -DGCDEBUG=1 -D_POSIX_C_SOURCE=200112L -DREF_ASSERTIONS=1"]) fi @@ -31,7 +33,12 @@ AC_PROG_CC AC_PROG_CPP AC_PROG_INSTALL AC_PROG_MKDIR_P -AC_PROG_YACC + +dnl Custom yacc check, because we don't want POSIX yacc. +dnl If we don't find either bison or byacc, just set it to yacc and see if it +dnl works or barfs on the extension. + +AC_CHECK_PROGS(YACC, bison byacc, yacc) dnl ---------------------------- dnl CHECK FOR /dev/fd FILESYSTEM diff --git a/input.h b/input.h index 3048756..698b763 100644 --- a/input.h +++ b/input.h @@ -2,6 +2,8 @@ #define MAXUNGET 2 /* maximum 2 character pushback */ +#include "token.h" /* for YYSTYPE */ + typedef struct Input Input; struct Input { int (*get)(Input *self); @@ -34,7 +36,7 @@ extern void yyerror(const char *s); /* token.c */ extern const char dnw[]; -extern int yylex(void); +extern int yylex(YYSTYPE *y); extern void inityy(void); extern void print_prompt2(void); diff --git a/parse.y b/parse.y index d5f6e39..4fd5a84 100644 --- a/parse.y +++ b/parse.y @@ -7,6 +7,8 @@ #include "syntax.h" %} +%define api.pure full + %token WORD QWORD %token LOCAL LET FOR CLOSURE FN %token REDIR DUP diff --git a/token.c b/token.c index a689270..b4c0cf8 100644 --- a/token.c +++ b/token.c @@ -141,13 +141,12 @@ static Boolean getfds(int fd[2], int c, int default0, int default1) { return TRUE; } -extern int yylex(void) { +extern int yylex(YYSTYPE *y) { static Boolean dollar = FALSE; int c; size_t i; /* The purpose of all these local assignments is to */ const char *meta; /* allow optimizing compilers like gcc to load these */ char *buf = tokenbuf; /* values into registers. On a sparc this is a */ - YYSTYPE *y = &yylval; /* win, in code size *and* execution time */ if (goterror) { goterror = FALSE; diff --git a/token.h b/token.h new file mode 100644 index 0000000..f87674c --- /dev/null +++ b/token.h @@ -0,0 +1,110 @@ +/* A Bison parser, made by GNU Bison 3.8.2. */ + +/* Bison interface 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 . */ + +/* 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. */ + +#ifndef YY_YY_Y_TAB_H_INCLUDED +# define YY_YY_Y_TAB_H_INCLUDED +/* 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" */ + WORD = 258, /* WORD */ + QWORD = 259, /* QWORD */ + LOCAL = 260, /* LOCAL */ + LET = 261, /* LET */ + FOR = 262, /* FOR */ + CLOSURE = 263, /* CLOSURE */ + FN = 264, /* FN */ + REDIR = 265, /* REDIR */ + DUP = 266, /* DUP */ + ANDAND = 267, /* ANDAND */ + BACKBACK = 268, /* BACKBACK */ + BBFLAT = 269, /* BBFLAT */ + BFLAT = 270, /* BFLAT */ + EXTRACT = 271, /* EXTRACT */ + CALL = 272, /* CALL */ + COUNT = 273, /* COUNT */ + FLAT = 274, /* FLAT */ + OROR = 275, /* OROR */ + PRIM = 276, /* PRIM */ + SUB = 277, /* SUB */ + NL = 278, /* NL */ + ENDFILE = 279, /* ENDFILE */ + ERROR = 280, /* ERROR */ + MATCH = 281, /* MATCH */ + PIPE = 282 /* PIPE */ + }; + typedef enum yytokentype yytoken_kind_t; +#endif + +/* Value type. */ +#if ! defined YYSTYPE && ! defined YYSTYPE_IS_DECLARED +union YYSTYPE +{ +#line 27 "./parse.y" + + Tree *tree; + char *str; + NodeKind kind; + +#line 97 "y.tab.h" + +}; +typedef union YYSTYPE YYSTYPE; +# define YYSTYPE_IS_TRIVIAL 1 +# define YYSTYPE_IS_DECLARED 1 +#endif + + + + +int yyparse (void); + + +#endif /* !YY_YY_Y_TAB_H_INCLUDED */ diff --git a/y.tab.c b/y.tab.c new file mode 100644 index 0000000..9460198 --- /dev/null +++ b/y.tab.c @@ -0,0 +1,2135 @@ +/* A Bison parser, made by GNU Bison 3.8.2. */ + +/* 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 . */ + +/* 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 30802 + +/* Bison version string. */ +#define YYBISON_VERSION "3.8.2" + +/* Skeleton name. */ +#define YYSKELETON_NAME "yacc.c" + +/* Pure parsers. */ +#define YYPURE 2 + +/* Push parsers. */ +#define YYPUSH 0 + +/* Pull parsers. */ +#define YYPULL 1 + + + + +/* First part of user prologue. */ +#line 3 "./parse.y" + +/* Some yaccs insist on including stdlib.h */ +#include "es.h" +#include "input.h" +#include "syntax.h" + +#line 78 "y.tab.c" + +# ifndef YY_CAST +# ifdef __cplusplus +# define YY_CAST(Type, Val) static_cast (Val) +# define YY_REINTERPRET_CAST(Type, Val) reinterpret_cast (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 + +/* Use api.header.include to #include this header + instead of duplicating it here. */ +#ifndef YY_YY_Y_TAB_H_INCLUDED +# define YY_YY_Y_TAB_H_INCLUDED +/* 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" */ + WORD = 258, /* WORD */ + QWORD = 259, /* QWORD */ + LOCAL = 260, /* LOCAL */ + LET = 261, /* LET */ + FOR = 262, /* FOR */ + CLOSURE = 263, /* CLOSURE */ + FN = 264, /* FN */ + REDIR = 265, /* REDIR */ + DUP = 266, /* DUP */ + ANDAND = 267, /* ANDAND */ + BACKBACK = 268, /* BACKBACK */ + BBFLAT = 269, /* BBFLAT */ + BFLAT = 270, /* BFLAT */ + EXTRACT = 271, /* EXTRACT */ + CALL = 272, /* CALL */ + COUNT = 273, /* COUNT */ + FLAT = 274, /* FLAT */ + OROR = 275, /* OROR */ + PRIM = 276, /* PRIM */ + SUB = 277, /* SUB */ + NL = 278, /* NL */ + ENDFILE = 279, /* ENDFILE */ + ERROR = 280, /* ERROR */ + MATCH = 281, /* MATCH */ + PIPE = 282 /* PIPE */ + }; + typedef enum yytokentype yytoken_kind_t; +#endif + +/* Value type. */ +#if ! defined YYSTYPE && ! defined YYSTYPE_IS_DECLARED +union YYSTYPE +{ +#line 27 "./parse.y" + + Tree *tree; + char *str; + NodeKind kind; + +#line 161 "y.tab.c" + +}; +typedef union YYSTYPE YYSTYPE; +# define YYSTYPE_IS_TRIVIAL 1 +# define YYSTYPE_IS_DECLARED 1 +#endif + + + + +int yyparse (void); + + +#endif /* !YY_YY_Y_TAB_H_INCLUDED */ +/* 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_WORD = 3, /* WORD */ + YYSYMBOL_QWORD = 4, /* QWORD */ + YYSYMBOL_LOCAL = 5, /* LOCAL */ + YYSYMBOL_LET = 6, /* LET */ + YYSYMBOL_FOR = 7, /* FOR */ + YYSYMBOL_CLOSURE = 8, /* CLOSURE */ + YYSYMBOL_FN = 9, /* FN */ + YYSYMBOL_REDIR = 10, /* REDIR */ + YYSYMBOL_DUP = 11, /* DUP */ + YYSYMBOL_ANDAND = 12, /* ANDAND */ + YYSYMBOL_BACKBACK = 13, /* BACKBACK */ + YYSYMBOL_BBFLAT = 14, /* BBFLAT */ + YYSYMBOL_BFLAT = 15, /* BFLAT */ + YYSYMBOL_EXTRACT = 16, /* EXTRACT */ + YYSYMBOL_CALL = 17, /* CALL */ + YYSYMBOL_COUNT = 18, /* COUNT */ + YYSYMBOL_FLAT = 19, /* FLAT */ + YYSYMBOL_OROR = 20, /* OROR */ + YYSYMBOL_PRIM = 21, /* PRIM */ + YYSYMBOL_SUB = 22, /* SUB */ + YYSYMBOL_NL = 23, /* NL */ + YYSYMBOL_ENDFILE = 24, /* ENDFILE */ + YYSYMBOL_ERROR = 25, /* ERROR */ + YYSYMBOL_MATCH = 26, /* MATCH */ + YYSYMBOL_27_ = 27, /* '^' */ + YYSYMBOL_28_ = 28, /* '=' */ + YYSYMBOL_29_ = 29, /* ')' */ + YYSYMBOL_30_ = 30, /* '!' */ + YYSYMBOL_PIPE = 31, /* PIPE */ + YYSYMBOL_32_ = 32, /* '$' */ + YYSYMBOL_33_ = 33, /* ';' */ + YYSYMBOL_34_ = 34, /* '&' */ + YYSYMBOL_35_ = 35, /* '(' */ + YYSYMBOL_36_ = 36, /* '~' */ + YYSYMBOL_37_ = 37, /* '{' */ + YYSYMBOL_38_ = 38, /* '}' */ + YYSYMBOL_39_ = 39, /* '@' */ + YYSYMBOL_40_ = 40, /* '`' */ + YYSYMBOL_YYACCEPT = 41, /* $accept */ + YYSYMBOL_es = 42, /* es */ + YYSYMBOL_end = 43, /* end */ + YYSYMBOL_line = 44, /* line */ + YYSYMBOL_body = 45, /* body */ + YYSYMBOL_cmdsa = 46, /* cmdsa */ + YYSYMBOL_cmdsan = 47, /* cmdsan */ + YYSYMBOL_cmd = 48, /* cmd */ + YYSYMBOL_cases = 49, /* cases */ + YYSYMBOL_case = 50, /* case */ + YYSYMBOL_simple = 51, /* simple */ + YYSYMBOL_args = 52, /* args */ + YYSYMBOL_redir = 53, /* redir */ + YYSYMBOL_bindings = 54, /* bindings */ + YYSYMBOL_binding = 55, /* binding */ + YYSYMBOL_assign = 56, /* assign */ + YYSYMBOL_fn = 57, /* fn */ + YYSYMBOL_first = 58, /* first */ + YYSYMBOL_sword = 59, /* sword */ + YYSYMBOL_word = 60, /* word */ + YYSYMBOL_comword = 61, /* comword */ + YYSYMBOL_param = 62, /* param */ + YYSYMBOL_params = 63, /* params */ + YYSYMBOL_words = 64, /* words */ + YYSYMBOL_nlwords = 65, /* nlwords */ + YYSYMBOL_nl = 66, /* nl */ + YYSYMBOL_caret = 67, /* caret */ + YYSYMBOL_binder = 68, /* binder */ + YYSYMBOL_keyword = 69 /* keyword */ +}; +typedef enum yysymbol_kind_t yysymbol_kind_t; + + + + +#ifdef short +# undef short +#endif + +/* On compilers that do not define __PTRDIFF_MAX__ etc., make sure + and (if available) are included + so that the code can choose integer types of a good width. */ + +#ifndef __PTRDIFF_MAX__ +# include /* INFRINGES ON USER NAME SPACE */ +# if defined __STDC_VERSION__ && 199901 <= __STDC_VERSION__ +# include /* 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 + . */ +#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 /* 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 /* 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_uint8 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 /* 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 /* INFRINGES ON USER NAME SPACE */ +# elif defined _AIX +# define YYSTACK_ALLOC __alloca +# elif defined _MSC_VER +# include /* INFRINGES ON USER NAME SPACE */ +# define alloca _alloca +# else +# define YYSTACK_ALLOC alloca +# if ! defined _ALLOCA_H && ! defined EXIT_SUCCESS +# include /* 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 /* 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 76 +/* YYLAST -- Last index in YYTABLE. */ +#define YYLAST 605 + +/* YYNTOKENS -- Number of terminals. */ +#define YYNTOKENS 41 +/* YYNNTS -- Number of nonterminals. */ +#define YYNNTS 29 +/* YYNRULES -- Number of rules. */ +#define YYNRULES 95 +/* YYNSTATES -- Number of states. */ +#define YYNSTATES 155 + +/* YYMAXUTOK -- Last valid token kind. */ +#define YYMAXUTOK 282 + + +/* 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, 30, 2, 2, 32, 2, 34, 2, + 35, 29, 2, 2, 2, 2, 2, 2, 2, 2, + 2, 2, 2, 2, 2, 2, 2, 2, 2, 33, + 2, 28, 2, 2, 39, 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, 27, 2, 40, 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, 37, 2, 38, 36, 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, 31 +}; + +#if YYDEBUG +/* YYRLINE[YYN] -- Source line where rule number YYN was defined. */ +static const yytype_uint8 yyrline[] = +{ + 0, 43, 43, 44, 46, 47, 49, 50, 52, 53, + 55, 56, 58, 59, 61, 62, 63, 64, 65, 66, + 67, 68, 69, 70, 71, 72, 73, 75, 76, 77, + 79, 80, 82, 83, 85, 86, 87, 88, 90, 91, + 93, 94, 95, 97, 98, 99, 101, 103, 104, 106, + 107, 109, 110, 112, 113, 115, 116, 117, 118, 119, + 120, 121, 122, 123, 124, 125, 126, 127, 128, 130, + 131, 133, 134, 136, 137, 139, 140, 141, 143, 144, + 146, 147, 149, 150, 151, 152, 154, 155, 156, 157, + 158, 159, 160, 161, 162, 163 +}; +#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\"", "WORD", "QWORD", + "LOCAL", "LET", "FOR", "CLOSURE", "FN", "REDIR", "DUP", "ANDAND", + "BACKBACK", "BBFLAT", "BFLAT", "EXTRACT", "CALL", "COUNT", "FLAT", + "OROR", "PRIM", "SUB", "NL", "ENDFILE", "ERROR", "MATCH", "'^'", "'='", + "')'", "'!'", "PIPE", "'$'", "';'", "'&'", "'('", "'~'", "'{'", "'}'", + "'@'", "'`'", "$accept", "es", "end", "line", "body", "cmdsa", "cmdsan", + "cmd", "cases", "case", "simple", "args", "redir", "bindings", "binding", + "assign", "fn", "first", "sword", "word", "comword", "param", "params", + "words", "nlwords", "nl", "caret", "binder", "keyword", YY_NULLPTR +}; + +static const char * +yysymbol_name (yysymbol_kind_t yysymbol) +{ + return yytname[yysymbol]; +} +#endif + +#define YYPACT_NINF (-83) + +#define yypact_value_is_default(Yyn) \ + ((Yyn) == YYPACT_NINF) + +#define YYTABLE_NINF (-81) + +#define yytable_value_is_error(Yyn) \ + 0 + +/* YYPACT[STATE-NUM] -- Index in YYTABLE of the portion describing + STATE-NUM. */ +static const yytype_int16 yypact[] = +{ + 155, 77, -83, -83, -83, -83, -83, -83, 459, 459, + -83, 459, 459, 459, 459, 459, 459, 459, 7, 459, + -6, 459, -83, 459, 345, -83, 459, 17, 77, 345, + 57, -83, 345, -83, 193, -83, -83, -83, -83, -83, + -83, -83, -83, -83, -83, -83, -83, -83, -83, -83, + -83, -83, 24, -83, -83, 25, 383, 383, -83, 25, + -83, -83, -83, -83, 25, -83, 345, 36, 231, 25, + 47, -83, 345, 53, 34, -83, -83, -83, -83, -83, + -83, -83, -83, -83, 67, 497, 269, -83, -83, 25, + 75, 33, 459, 46, -83, -83, 459, 58, 67, -83, + -83, -83, 25, 459, -83, -83, -83, 345, -83, 307, + 307, 307, -83, -83, 25, -6, -83, 535, -83, 345, + 25, 459, 421, 68, 67, 67, -83, -83, -15, -83, + -83, 78, 70, 66, -83, 565, -83, -83, 459, 535, + -83, 535, -83, -83, 459, -83, 459, 85, -83, 307, + -83, -83, -83, 459, 43 +}; + +/* YYDEFACT[STATE-NUM] -- Default reduction number in state STATE-NUM. + Performed when YYTABLE does not specify something else to do. Zero + means the default is an error. */ +static const yytype_int8 yydefact[] = +{ + 0, 0, 69, 70, 82, 83, 84, 85, 0, 0, + 38, 0, 0, 0, 0, 0, 0, 0, 0, 0, + 80, 0, 75, 0, 14, 71, 0, 0, 0, 14, + 6, 15, 14, 18, 32, 49, 55, 78, 4, 5, + 3, 90, 91, 92, 94, 93, 89, 95, 88, 86, + 87, 53, 48, 51, 52, 39, 0, 0, 66, 73, + 61, 62, 63, 64, 78, 81, 14, 59, 0, 73, + 0, 12, 14, 8, 0, 65, 1, 2, 7, 78, + 78, 78, 10, 11, 16, 81, 33, 35, 17, 34, + 0, 0, 0, 0, 67, 68, 25, 0, 23, 73, + 77, 56, 76, 24, 57, 9, 13, 14, 72, 14, + 14, 14, 50, 37, 36, 80, 79, 43, 54, 14, + 74, 30, 0, 0, 20, 21, 22, 73, 0, 40, + 44, 80, 0, 0, 27, 0, 60, 58, 46, 43, + 78, 43, 45, 47, 30, 26, 30, 31, 42, 14, + 41, 29, 28, 0, 19 +}; + +/* YYPGOTO[NTERM-NUM]. */ +static const yytype_int8 yypgoto[] = +{ + -83, -83, 76, 87, -59, 15, -83, 4, -83, -66, + -83, -83, -32, -83, -47, -13, -77, -82, -10, 11, + 0, -62, 69, -60, -83, -38, -19, -83, -83 +}; + +/* YYDEFGOTO[NTERM-NUM]. */ +static const yytype_uint8 yydefgoto[] = +{ + 0, 27, 40, 28, 70, 71, 72, 73, 133, 134, + 31, 86, 32, 128, 129, 88, 33, 34, 51, 120, + 53, 36, 74, 96, 68, 91, 90, 37, 54 +}; + +/* YYTABLE[YYPACT[STATE-NUM]] -- What to do in state STATE-NUM. If + positive, shift that token. If negative, reduce the rule whose + number is the opposite. If YYTABLE_NINF, syntax error. */ +static const yytype_int16 yytable[] = +{ + 35, 66, 87, 58, 30, 60, 61, 62, 139, 103, + 63, 67, 108, 105, 140, 29, 75, 76, 141, 52, + 55, 65, 56, 57, 35, 59, 97, -71, -71, 35, + 64, 108, 35, 30, 69, 131, 84, 2, 3, 122, + 130, 109, 110, 111, 29, 89, 94, 95, 123, 2, + 3, 92, 92, 147, 113, 79, 116, 131, 99, 131, + 132, -71, 130, 80, 130, 79, 35, 138, 117, 79, + 98, 107, 35, 80, 81, 112, 106, 80, 151, 102, + 152, 116, 118, 119, 81, 104, 82, 83, 81, 144, + 82, 83, 148, 121, 150, 145, 127, 114, 81, 146, + 38, 39, 149, 115, 77, 85, 137, 35, 143, 35, + 35, 35, 153, 124, 125, 126, 78, 35, 142, 35, + 0, 93, 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 135, 0, 0, 35, 0, 0, 0, 35, + 0, 35, 0, 112, 0, 0, 0, 0, 0, 35, + 0, 0, 0, 154, 0, 135, 1, 135, 2, 3, + 4, 5, 6, 7, 8, 9, 10, -14, 11, 12, + 13, 14, 15, 16, 17, -14, 18, 0, -14, -14, + 0, 19, 0, 0, 0, 20, -14, 21, -14, -14, + 22, 23, 24, 0, 25, 26, 2, 3, 41, 42, + 43, 44, 45, 9, 10, 0, 11, 12, 13, 46, + 15, 16, 17, 0, 18, 0, 0, 0, 0, 47, + 85, -80, 0, 49, 0, 21, 0, 0, 22, 50, + 24, 0, 25, 26, 2, 3, 41, 42, 43, 44, + 45, 0, 0, 0, 11, 12, 13, 46, 15, 16, + 17, 0, 18, 0, 100, 0, 0, 47, 0, 48, + 101, 49, 0, 21, 0, 0, 22, 50, 24, 0, + 25, 26, 2, 3, 41, 42, 43, 44, 45, 9, + 10, 0, 11, 12, 13, 46, 15, 16, 17, 0, + 18, 0, 0, 0, 0, 47, 0, 48, 0, 49, + 0, 21, 0, 0, 22, 50, 24, 0, 25, 26, + 2, 3, 4, 5, 6, 7, 8, 9, 10, 0, + 11, 12, 13, 14, 15, 16, 17, 0, 18, 0, + 116, 0, 0, 19, 0, 0, 0, 20, 0, 21, + 0, 0, 22, 23, 24, 0, 25, 26, 2, 3, + 4, 5, 6, 7, 8, 9, 10, 0, 11, 12, + 13, 14, 15, 16, 17, 0, 18, 0, 0, 0, + 0, 19, 0, 0, 0, 20, 0, 21, 0, 0, + 22, 23, 24, 0, 25, 26, 2, 3, 41, 42, + 43, 44, 45, 0, 0, 0, 11, 12, 13, 46, + 15, 16, 17, 0, 18, 0, 0, 0, 0, 47, + 92, 48, 0, 49, 0, 21, 0, 0, 22, 50, + 24, 0, 25, 26, 2, 3, 41, 42, 43, 44, + 45, 0, 0, 0, 11, 12, 13, 46, 15, 16, + 17, 0, 18, 0, 0, 0, 0, 47, 0, 48, + 136, 49, 0, 21, 0, 0, 22, 50, 24, 0, + 25, 26, 2, 3, 41, 42, 43, 44, 45, 0, + 0, 0, 11, 12, 13, 46, 15, 16, 17, 0, + 18, 0, 0, 0, 0, 47, 0, 48, 0, 49, + 0, 21, 0, 0, 22, 50, 24, 0, 25, 26, + 2, 3, 41, 42, 43, 44, 45, 0, 0, 0, + 11, 12, 13, 46, 15, 16, 17, 0, 18, 0, + 0, 0, 0, 47, 0, 0, 0, 49, 0, 21, + 0, 0, 22, 50, 24, 0, 25, 26, 2, 3, + 0, 0, 0, 0, 8, 0, 0, 0, 11, 12, + 13, 0, 15, 16, 17, 0, 18, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 21, 2, 3, + 22, 0, 24, 0, 25, 26, 0, 0, 11, 12, + 13, 0, 15, 16, 17, 0, 18, 0, 0, 0, + 0, 0, 92, 0, 0, 0, 0, 21, 0, 0, + 22, 0, 24, 0, 25, 26 +}; + +static const yytype_int16 yycheck[] = +{ + 0, 20, 34, 13, 0, 15, 16, 17, 23, 69, + 3, 21, 74, 72, 29, 0, 26, 0, 33, 8, + 9, 27, 11, 12, 24, 14, 64, 3, 4, 29, + 19, 93, 32, 29, 23, 117, 32, 3, 4, 99, + 117, 79, 80, 81, 29, 34, 56, 57, 107, 3, + 4, 27, 27, 135, 86, 12, 23, 139, 22, 141, + 119, 37, 139, 20, 141, 12, 66, 127, 35, 12, + 66, 37, 72, 20, 31, 85, 23, 20, 144, 68, + 146, 23, 92, 37, 31, 38, 33, 34, 31, 23, + 33, 34, 139, 35, 141, 29, 115, 86, 31, 33, + 23, 24, 140, 28, 28, 27, 38, 107, 38, 109, + 110, 111, 27, 109, 110, 111, 29, 117, 131, 119, + -1, 52, -1, -1, -1, -1, -1, -1, -1, -1, + -1, -1, 121, -1, -1, 135, -1, -1, -1, 139, + -1, 141, -1, 153, -1, -1, -1, -1, -1, 149, + -1, -1, -1, 149, -1, 144, 1, 146, 3, 4, + 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, + 15, 16, 17, 18, 19, 20, 21, -1, 23, 24, + -1, 26, -1, -1, -1, 30, 31, 32, 33, 34, + 35, 36, 37, -1, 39, 40, 3, 4, 5, 6, + 7, 8, 9, 10, 11, -1, 13, 14, 15, 16, + 17, 18, 19, -1, 21, -1, -1, -1, -1, 26, + 27, 28, -1, 30, -1, 32, -1, -1, 35, 36, + 37, -1, 39, 40, 3, 4, 5, 6, 7, 8, + 9, -1, -1, -1, 13, 14, 15, 16, 17, 18, + 19, -1, 21, -1, 23, -1, -1, 26, -1, 28, + 29, 30, -1, 32, -1, -1, 35, 36, 37, -1, + 39, 40, 3, 4, 5, 6, 7, 8, 9, 10, + 11, -1, 13, 14, 15, 16, 17, 18, 19, -1, + 21, -1, -1, -1, -1, 26, -1, 28, -1, 30, + -1, 32, -1, -1, 35, 36, 37, -1, 39, 40, + 3, 4, 5, 6, 7, 8, 9, 10, 11, -1, + 13, 14, 15, 16, 17, 18, 19, -1, 21, -1, + 23, -1, -1, 26, -1, -1, -1, 30, -1, 32, + -1, -1, 35, 36, 37, -1, 39, 40, 3, 4, + 5, 6, 7, 8, 9, 10, 11, -1, 13, 14, + 15, 16, 17, 18, 19, -1, 21, -1, -1, -1, + -1, 26, -1, -1, -1, 30, -1, 32, -1, -1, + 35, 36, 37, -1, 39, 40, 3, 4, 5, 6, + 7, 8, 9, -1, -1, -1, 13, 14, 15, 16, + 17, 18, 19, -1, 21, -1, -1, -1, -1, 26, + 27, 28, -1, 30, -1, 32, -1, -1, 35, 36, + 37, -1, 39, 40, 3, 4, 5, 6, 7, 8, + 9, -1, -1, -1, 13, 14, 15, 16, 17, 18, + 19, -1, 21, -1, -1, -1, -1, 26, -1, 28, + 29, 30, -1, 32, -1, -1, 35, 36, 37, -1, + 39, 40, 3, 4, 5, 6, 7, 8, 9, -1, + -1, -1, 13, 14, 15, 16, 17, 18, 19, -1, + 21, -1, -1, -1, -1, 26, -1, 28, -1, 30, + -1, 32, -1, -1, 35, 36, 37, -1, 39, 40, + 3, 4, 5, 6, 7, 8, 9, -1, -1, -1, + 13, 14, 15, 16, 17, 18, 19, -1, 21, -1, + -1, -1, -1, 26, -1, -1, -1, 30, -1, 32, + -1, -1, 35, 36, 37, -1, 39, 40, 3, 4, + -1, -1, -1, -1, 9, -1, -1, -1, 13, 14, + 15, -1, 17, 18, 19, -1, 21, -1, -1, -1, + -1, -1, -1, -1, -1, -1, -1, 32, 3, 4, + 35, -1, 37, -1, 39, 40, -1, -1, 13, 14, + 15, -1, 17, 18, 19, -1, 21, -1, -1, -1, + -1, -1, 27, -1, -1, -1, -1, 32, -1, -1, + 35, -1, 37, -1, 39, 40 +}; + +/* YYSTOS[STATE-NUM] -- The symbol kind of the accessing symbol of + state STATE-NUM. */ +static const yytype_int8 yystos[] = +{ + 0, 1, 3, 4, 5, 6, 7, 8, 9, 10, + 11, 13, 14, 15, 16, 17, 18, 19, 21, 26, + 30, 32, 35, 36, 37, 39, 40, 42, 44, 46, + 48, 51, 53, 57, 58, 61, 62, 68, 23, 24, + 43, 5, 6, 7, 8, 9, 16, 26, 28, 30, + 36, 59, 60, 61, 69, 60, 60, 60, 59, 60, + 59, 59, 59, 3, 60, 27, 67, 59, 65, 60, + 45, 46, 47, 48, 63, 59, 0, 43, 44, 12, + 20, 31, 33, 34, 48, 27, 52, 53, 56, 60, + 67, 66, 27, 63, 59, 59, 64, 66, 48, 22, + 23, 29, 60, 64, 38, 45, 23, 37, 62, 66, + 66, 66, 59, 53, 60, 28, 23, 35, 59, 37, + 60, 35, 64, 45, 48, 48, 48, 67, 54, 55, + 57, 58, 45, 49, 50, 60, 29, 38, 64, 23, + 29, 33, 56, 38, 23, 29, 33, 58, 55, 66, + 55, 50, 50, 27, 48 +}; + +/* YYR1[RULE-NUM] -- Symbol kind of the left-hand side of rule RULE-NUM. */ +static const yytype_int8 yyr1[] = +{ + 0, 41, 42, 42, 43, 43, 44, 44, 45, 45, + 46, 46, 47, 47, 48, 48, 48, 48, 48, 48, + 48, 48, 48, 48, 48, 48, 48, 49, 49, 49, + 50, 50, 51, 51, 52, 52, 52, 52, 53, 53, + 54, 54, 54, 55, 55, 55, 56, 57, 57, 58, + 58, 59, 59, 60, 60, 61, 61, 61, 61, 61, + 61, 61, 61, 61, 61, 61, 61, 61, 61, 62, + 62, 63, 63, 64, 64, 65, 65, 65, 66, 66, + 67, 67, 68, 68, 68, 68, 69, 69, 69, 69, + 69, 69, 69, 69, 69, 69 +}; + +/* YYR2[RULE-NUM] -- Number of symbols on the right-hand side of rule RULE-NUM. */ +static const yytype_int8 yyr2[] = +{ + 0, 2, 2, 2, 1, 1, 1, 2, 1, 2, + 2, 2, 1, 2, 0, 1, 2, 2, 1, 7, + 4, 4, 4, 3, 3, 3, 6, 1, 3, 3, + 0, 2, 1, 2, 1, 1, 2, 2, 1, 2, + 1, 3, 3, 0, 1, 2, 4, 6, 2, 1, + 3, 1, 1, 1, 3, 1, 3, 3, 5, 2, + 5, 2, 2, 2, 2, 2, 2, 3, 3, 1, + 1, 0, 2, 0, 2, 0, 2, 2, 0, 2, + 0, 1, 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1 +}; + + +enum { YYENOMEM = -2 }; + +#define yyerrok (yyerrstatus = 0) +#define yyclearin (yychar = YYEMPTY) + +#define YYACCEPT goto yyacceptlab +#define YYABORT goto yyabortlab +#define YYERROR goto yyerrorlab +#define YYNOMEM goto yyexhaustedlab + + +#define YYRECOVERING() (!!yyerrstatus) + +#define YYBACKUP(Token, Value) \ + do \ + if (yychar == YYEMPTY) \ + { \ + yychar = (Token); \ + yylval = (Value); \ + YYPOPSTACK (yylen); \ + yystate = *yyssp; \ + goto yybackup; \ + } \ + else \ + { \ + yyerror (YY_("syntax error: cannot back up")); \ + YYERROR; \ + } \ + while (0) + +/* Backward compatibility with an undocumented macro. + Use YYerror or YYUNDEF. */ +#define YYERRCODE YYUNDEF + + +/* Enable debugging if requested. */ +#if YYDEBUG + +# ifndef YYFPRINTF +# include /* INFRINGES ON USER NAME SPACE */ +# define YYFPRINTF fprintf +# endif + +# define YYDPRINTF(Args) \ +do { \ + if (yydebug) \ + YYFPRINTF Args; \ +} while (0) + + + + +# define YY_SYMBOL_PRINT(Title, Kind, Value, Location) \ +do { \ + if (yydebug) \ + { \ + YYFPRINTF (stderr, "%s ", Title); \ + yy_symbol_print (stderr, \ + Kind, Value); \ + YYFPRINTF (stderr, "\n"); \ + } \ +} while (0) + + +/*-----------------------------------. +| Print this symbol's value on YYO. | +`-----------------------------------*/ + +static void +yy_symbol_value_print (FILE *yyo, + yysymbol_kind_t yykind, YYSTYPE const * const yyvaluep) +{ + FILE *yyoutput = yyo; + YY_USE (yyoutput); + if (!yyvaluep) + return; + YY_IGNORE_MAYBE_UNINITIALIZED_BEGIN + YY_USE (yykind); + YY_IGNORE_MAYBE_UNINITIALIZED_END +} + + +/*---------------------------. +| Print this symbol on YYO. | +`---------------------------*/ + +static void +yy_symbol_print (FILE *yyo, + yysymbol_kind_t yykind, YYSTYPE const * const yyvaluep) +{ + YYFPRINTF (yyo, "%s %s (", + yykind < YYNTOKENS ? "token" : "nterm", yysymbol_name (yykind)); + + yy_symbol_value_print (yyo, yykind, yyvaluep); + YYFPRINTF (yyo, ")"); +} + +/*------------------------------------------------------------------. +| yy_stack_print -- Print the state stack from its BOTTOM up to its | +| TOP (included). | +`------------------------------------------------------------------*/ + +static void +yy_stack_print (yy_state_t *yybottom, yy_state_t *yytop) +{ + YYFPRINTF (stderr, "Stack now"); + for (; yybottom <= yytop; yybottom++) + { + int yybot = *yybottom; + YYFPRINTF (stderr, " %d", yybot); + } + YYFPRINTF (stderr, "\n"); +} + +# define YY_STACK_PRINT(Bottom, Top) \ +do { \ + if (yydebug) \ + yy_stack_print ((Bottom), (Top)); \ +} while (0) + + +/*------------------------------------------------. +| Report that the YYRULE is going to be reduced. | +`------------------------------------------------*/ + +static void +yy_reduce_print (yy_state_t *yyssp, YYSTYPE *yyvsp, + int yyrule) +{ + int yylno = yyrline[yyrule]; + int yynrhs = yyr2[yyrule]; + int yyi; + YYFPRINTF (stderr, "Reducing stack by rule %d (line %d):\n", + yyrule - 1, yylno); + /* The symbols being reduced. */ + for (yyi = 0; yyi < yynrhs; yyi++) + { + YYFPRINTF (stderr, " $%d = ", yyi + 1); + yy_symbol_print (stderr, + YY_ACCESSING_SYMBOL (+yyssp[yyi + 1 - yynrhs]), + &yyvsp[(yyi + 1) - (yynrhs)]); + YYFPRINTF (stderr, "\n"); + } +} + +# define YY_REDUCE_PRINT(Rule) \ +do { \ + if (yydebug) \ + yy_reduce_print (yyssp, yyvsp, Rule); \ +} while (0) + +/* Nonzero means print parse trace. It is left uninitialized so that + multiple parsers can coexist. */ +int yydebug; +#else /* !YYDEBUG */ +# define YYDPRINTF(Args) ((void) 0) +# define YY_SYMBOL_PRINT(Title, Kind, Value, Location) +# define YY_STACK_PRINT(Bottom, Top) +# define YY_REDUCE_PRINT(Rule) +#endif /* !YYDEBUG */ + + +/* YYINITDEPTH -- initial size of the parser's stacks. */ +#ifndef YYINITDEPTH +# define YYINITDEPTH 200 +#endif + +/* YYMAXDEPTH -- maximum size the stacks can grow to (effective only + if the built-in stack extension method is used). + + Do not make this value too large; the results are undefined if + YYSTACK_ALLOC_MAXIMUM < YYSTACK_BYTES (YYMAXDEPTH) + evaluated with infinite-precision integer arithmetic. */ + +#ifndef YYMAXDEPTH +# define YYMAXDEPTH 10000 +#endif + + + + + + +/*-----------------------------------------------. +| Release the memory associated to this symbol. | +`-----------------------------------------------*/ + +static void +yydestruct (const char *yymsg, + yysymbol_kind_t yykind, YYSTYPE *yyvaluep) +{ + YY_USE (yyvaluep); + if (!yymsg) + yymsg = "Deleting"; + YY_SYMBOL_PRINT (yymsg, yykind, yyvaluep, yylocationp); + + YY_IGNORE_MAYBE_UNINITIALIZED_BEGIN + YY_USE (yykind); + YY_IGNORE_MAYBE_UNINITIALIZED_END +} + + + + + + +/*----------. +| yyparse. | +`----------*/ + +int +yyparse (void) +{ +/* Lookahead token kind. */ +int yychar; + + +/* The semantic value of the lookahead symbol. */ +/* Default value used for initialization, for pacifying older GCCs + or non-GCC compilers. */ +YY_INITIAL_VALUE (static YYSTYPE yyval_default;) +YYSTYPE yylval YY_INITIAL_VALUE (= yyval_default); + + /* Number of syntax errors so far. */ + int yynerrs = 0; + + yy_state_fast_t yystate = 0; + /* Number of tokens to shift before error messages enabled. */ + int yyerrstatus = 0; + + /* Refer to the stacks through separate pointers, to allow yyoverflow + to reallocate them elsewhere. */ + + /* Their size. */ + YYPTRDIFF_T yystacksize = YYINITDEPTH; + + /* The state stack: array, bottom, top. */ + yy_state_t yyssa[YYINITDEPTH]; + yy_state_t *yyss = yyssa; + yy_state_t *yyssp = yyss; + + /* The semantic value stack: array, bottom, top. */ + YYSTYPE yyvsa[YYINITDEPTH]; + YYSTYPE *yyvs = yyvsa; + YYSTYPE *yyvsp = yyvs; + + int yyn; + /* The return value of yyparse. */ + int yyresult; + /* Lookahead symbol kind. */ + yysymbol_kind_t yytoken = YYSYMBOL_YYEMPTY; + /* The variables used to return semantic value and location from the + action routines. */ + YYSTYPE yyval; + + + +#define YYPOPSTACK(N) (yyvsp -= (N), yyssp -= (N)) + + /* The number of symbols on the RHS of the reduced rule. + Keep to zero when no symbol should be popped. */ + int yylen = 0; + + YYDPRINTF ((stderr, "Starting parse\n")); + + yychar = YYEMPTY; /* Cause a token to be read. */ + + goto yysetstate; + + +/*------------------------------------------------------------. +| yynewstate -- push a new state, which is found in yystate. | +`------------------------------------------------------------*/ +yynewstate: + /* In all cases, when you get here, the value and location stacks + have just been pushed. So pushing a state here evens the stacks. */ + yyssp++; + + +/*--------------------------------------------------------------------. +| yysetstate -- set current state (the top of the stack) to yystate. | +`--------------------------------------------------------------------*/ +yysetstate: + YYDPRINTF ((stderr, "Entering state %d\n", yystate)); + YY_ASSERT (0 <= yystate && yystate < YYNSTATES); + YY_IGNORE_USELESS_CAST_BEGIN + *yyssp = YY_CAST (yy_state_t, yystate); + YY_IGNORE_USELESS_CAST_END + YY_STACK_PRINT (yyss, yyssp); + + if (yyss + yystacksize - 1 <= yyssp) +#if !defined yyoverflow && !defined YYSTACK_RELOCATE + YYNOMEM; +#else + { + /* Get the current used size of the three stacks, in elements. */ + YYPTRDIFF_T yysize = yyssp - yyss + 1; + +# if defined yyoverflow + { + /* Give user a chance to reallocate the stack. Use copies of + these so that the &'s don't force the real ones into + memory. */ + yy_state_t *yyss1 = yyss; + YYSTYPE *yyvs1 = yyvs; + + /* Each stack pointer address is followed by the size of the + data in use in that stack, in bytes. This used to be a + conditional around just the two extra args, but that might + be undefined if yyoverflow is a macro. */ + yyoverflow (YY_("memory exhausted"), + &yyss1, yysize * YYSIZEOF (*yyssp), + &yyvs1, yysize * YYSIZEOF (*yyvsp), + &yystacksize); + yyss = yyss1; + yyvs = yyvs1; + } +# else /* defined YYSTACK_RELOCATE */ + /* Extend the stack our own way. */ + if (YYMAXDEPTH <= yystacksize) + YYNOMEM; + yystacksize *= 2; + if (YYMAXDEPTH < yystacksize) + yystacksize = YYMAXDEPTH; + + { + yy_state_t *yyss1 = yyss; + union yyalloc *yyptr = + YY_CAST (union yyalloc *, + YYSTACK_ALLOC (YY_CAST (YYSIZE_T, YYSTACK_BYTES (yystacksize)))); + if (! yyptr) + YYNOMEM; + YYSTACK_RELOCATE (yyss_alloc, yyss); + YYSTACK_RELOCATE (yyvs_alloc, yyvs); +# undef YYSTACK_RELOCATE + if (yyss1 != yyssa) + YYSTACK_FREE (yyss1); + } +# endif + + yyssp = yyss + yysize - 1; + yyvsp = yyvs + yysize - 1; + + YY_IGNORE_USELESS_CAST_BEGIN + YYDPRINTF ((stderr, "Stack size increased to %ld\n", + YY_CAST (long, yystacksize))); + YY_IGNORE_USELESS_CAST_END + + if (yyss + yystacksize - 1 <= yyssp) + YYABORT; + } +#endif /* !defined yyoverflow && !defined YYSTACK_RELOCATE */ + + + if (yystate == YYFINAL) + YYACCEPT; + + goto yybackup; + + +/*-----------. +| yybackup. | +`-----------*/ +yybackup: + /* Do appropriate processing given the current state. Read a + lookahead token if we need one and don't already have one. */ + + /* First try to decide what to do without reference to lookahead token. */ + yyn = yypact[yystate]; + if (yypact_value_is_default (yyn)) + goto yydefault; + + /* Not known => get a lookahead token if don't already have one. */ + + /* YYCHAR is either empty, or end-of-input, or a valid lookahead. */ + if (yychar == YYEMPTY) + { + YYDPRINTF ((stderr, "Reading a token\n")); + yychar = yylex (&yylval); + } + + if (yychar <= YYEOF) + { + yychar = YYEOF; + yytoken = YYSYMBOL_YYEOF; + YYDPRINTF ((stderr, "Now at end of input.\n")); + } + else if (yychar == 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. */ + yychar = YYUNDEF; + yytoken = YYSYMBOL_YYerror; + goto yyerrlab1; + } + else + { + yytoken = YYTRANSLATE (yychar); + YY_SYMBOL_PRINT ("Next token is", yytoken, &yylval, &yylloc); + } + + /* If the proper action on seeing token YYTOKEN is to reduce or to + detect an error, take that action. */ + yyn += yytoken; + if (yyn < 0 || YYLAST < yyn || yycheck[yyn] != yytoken) + goto yydefault; + yyn = yytable[yyn]; + if (yyn <= 0) + { + if (yytable_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. */ + YY_SYMBOL_PRINT ("Shifting", yytoken, &yylval, &yylloc); + yystate = yyn; + YY_IGNORE_MAYBE_UNINITIALIZED_BEGIN + *++yyvsp = yylval; + YY_IGNORE_MAYBE_UNINITIALIZED_END + + /* Discard the shifted token. */ + yychar = YYEMPTY; + goto yynewstate; + + +/*-----------------------------------------------------------. +| yydefault -- do the default action for the current state. | +`-----------------------------------------------------------*/ +yydefault: + yyn = yydefact[yystate]; + if (yyn == 0) + goto yyerrlab; + goto yyreduce; + + +/*-----------------------------. +| yyreduce -- do a reduction. | +`-----------------------------*/ +yyreduce: + /* yyn is the number of a rule to reduce with. */ + yylen = yyr2[yyn]; + + /* If YYLEN is nonzero, implement the default value of the action: + '$$ = $1'. + + Otherwise, the following line sets YYVAL to garbage. + This behavior is undocumented and Bison + users should not rely upon it. Assigning to YYVAL + unconditionally makes the parser a bit smaller, and it avoids a + GCC warning that YYVAL may be used uninitialized. */ + yyval = yyvsp[1-yylen]; + + + YY_REDUCE_PRINT (yyn); + switch (yyn) + { + case 2: /* es: line end */ +#line 43 "./parse.y" + { parsetree = (yyvsp[-1].tree); YYACCEPT; } +#line 1406 "y.tab.c" + break; + + case 3: /* es: error end */ +#line 44 "./parse.y" + { yyerrok; parsetree = NULL; YYABORT; } +#line 1412 "y.tab.c" + break; + + case 4: /* end: NL */ +#line 46 "./parse.y" + { if (!readheredocs(FALSE)) YYABORT; } +#line 1418 "y.tab.c" + break; + + case 5: /* end: ENDFILE */ +#line 47 "./parse.y" + { if (!readheredocs(TRUE)) YYABORT; } +#line 1424 "y.tab.c" + break; + + case 6: /* line: cmd */ +#line 49 "./parse.y" + { (yyval.tree) = (yyvsp[0].tree); } +#line 1430 "y.tab.c" + break; + + case 7: /* line: cmdsa line */ +#line 50 "./parse.y" + { (yyval.tree) = mkseq("%seq", (yyvsp[-1].tree), (yyvsp[0].tree)); } +#line 1436 "y.tab.c" + break; + + case 8: /* body: cmd */ +#line 52 "./parse.y" + { (yyval.tree) = (yyvsp[0].tree); } +#line 1442 "y.tab.c" + break; + + case 9: /* body: cmdsan body */ +#line 53 "./parse.y" + { (yyval.tree) = mkseq("%seq", (yyvsp[-1].tree), (yyvsp[0].tree)); } +#line 1448 "y.tab.c" + break; + + case 10: /* cmdsa: cmd ';' */ +#line 55 "./parse.y" + { (yyval.tree) = (yyvsp[-1].tree); } +#line 1454 "y.tab.c" + break; + + case 11: /* cmdsa: cmd '&' */ +#line 56 "./parse.y" + { (yyval.tree) = prefix("%background", mk(nList, thunkify((yyvsp[-1].tree)), NULL)); } +#line 1460 "y.tab.c" + break; + + case 12: /* cmdsan: cmdsa */ +#line 58 "./parse.y" + { (yyval.tree) = (yyvsp[0].tree); } +#line 1466 "y.tab.c" + break; + + case 13: /* cmdsan: cmd NL */ +#line 59 "./parse.y" + { (yyval.tree) = (yyvsp[-1].tree); if (!readheredocs(FALSE)) YYABORT; } +#line 1472 "y.tab.c" + break; + + case 14: /* cmd: %empty */ +#line 61 "./parse.y" + { (yyval.tree) = NULL; } +#line 1478 "y.tab.c" + break; + + case 15: /* cmd: simple */ +#line 62 "./parse.y" + { (yyval.tree) = redirect((yyvsp[0].tree)); if ((yyval.tree) == &errornode) YYABORT; } +#line 1484 "y.tab.c" + break; + + case 16: /* cmd: redir cmd */ +#line 63 "./parse.y" + { (yyval.tree) = redirect(mk(nRedir, (yyvsp[-1].tree), (yyvsp[0].tree))); if ((yyval.tree) == &errornode) YYABORT; } +#line 1490 "y.tab.c" + break; + + case 17: /* cmd: first assign */ +#line 64 "./parse.y" + { (yyval.tree) = mk(nAssign, (yyvsp[-1].tree), (yyvsp[0].tree)); } +#line 1496 "y.tab.c" + break; + + case 18: /* cmd: fn */ +#line 65 "./parse.y" + { (yyval.tree) = (yyvsp[0].tree); } +#line 1502 "y.tab.c" + break; + + case 19: /* cmd: binder nl '(' bindings ')' nl cmd */ +#line 66 "./parse.y" + { (yyval.tree) = mk((yyvsp[-6].kind), (yyvsp[-3].tree), (yyvsp[0].tree)); } +#line 1508 "y.tab.c" + break; + + case 20: /* cmd: cmd ANDAND nl cmd */ +#line 67 "./parse.y" + { (yyval.tree) = mkseq("%and", (yyvsp[-3].tree), (yyvsp[0].tree)); } +#line 1514 "y.tab.c" + break; + + case 21: /* cmd: cmd OROR nl cmd */ +#line 68 "./parse.y" + { (yyval.tree) = mkseq("%or", (yyvsp[-3].tree), (yyvsp[0].tree)); } +#line 1520 "y.tab.c" + break; + + case 22: /* cmd: cmd PIPE nl cmd */ +#line 69 "./parse.y" + { (yyval.tree) = mkpipe((yyvsp[-3].tree), (yyvsp[-2].tree)->u[0].i, (yyvsp[-2].tree)->u[1].i, (yyvsp[0].tree)); } +#line 1526 "y.tab.c" + break; + + case 23: /* cmd: '!' caret cmd */ +#line 70 "./parse.y" + { (yyval.tree) = prefix("%not", mk(nList, thunkify((yyvsp[0].tree)), NULL)); } +#line 1532 "y.tab.c" + break; + + case 24: /* cmd: '~' word words */ +#line 71 "./parse.y" + { (yyval.tree) = mk(nMatch, (yyvsp[-1].tree), (yyvsp[0].tree)); } +#line 1538 "y.tab.c" + break; + + case 25: /* cmd: EXTRACT word words */ +#line 72 "./parse.y" + { (yyval.tree) = mk(nExtract, (yyvsp[-1].tree), (yyvsp[0].tree)); } +#line 1544 "y.tab.c" + break; + + case 26: /* cmd: MATCH word nl '(' cases ')' */ +#line 73 "./parse.y" + { (yyval.tree) = mkmatch((yyvsp[-4].tree), (yyvsp[-1].tree)); } +#line 1550 "y.tab.c" + break; + + case 27: /* cases: case */ +#line 75 "./parse.y" + { (yyval.tree) = treecons((yyvsp[0].tree), NULL); } +#line 1556 "y.tab.c" + break; + + case 28: /* cases: cases ';' case */ +#line 76 "./parse.y" + { (yyval.tree) = treeconsend((yyvsp[-2].tree), (yyvsp[0].tree)); } +#line 1562 "y.tab.c" + break; + + case 29: /* cases: cases NL case */ +#line 77 "./parse.y" + { (yyval.tree) = treeconsend((yyvsp[-2].tree), (yyvsp[0].tree)); } +#line 1568 "y.tab.c" + break; + + case 30: /* case: %empty */ +#line 79 "./parse.y" + { (yyval.tree) = NULL; } +#line 1574 "y.tab.c" + break; + + case 31: /* case: word first */ +#line 80 "./parse.y" + { (yyval.tree) = mk(nMatch, (yyvsp[-1].tree), thunkify((yyvsp[0].tree))); } +#line 1580 "y.tab.c" + break; + + case 32: /* simple: first */ +#line 82 "./parse.y" + { (yyval.tree) = treecons((yyvsp[0].tree), NULL); } +#line 1586 "y.tab.c" + break; + + case 33: /* simple: first args */ +#line 83 "./parse.y" + { (yyval.tree) = firstprepend((yyvsp[-1].tree), (yyvsp[0].tree)); } +#line 1592 "y.tab.c" + break; + + case 34: /* args: word */ +#line 85 "./parse.y" + { (yyval.tree) = treecons((yyvsp[0].tree), NULL); } +#line 1598 "y.tab.c" + break; + + case 35: /* args: redir */ +#line 86 "./parse.y" + { (yyval.tree) = redirappend(NULL, (yyvsp[0].tree)); } +#line 1604 "y.tab.c" + break; + + case 36: /* args: args word */ +#line 87 "./parse.y" + { (yyval.tree) = treeconsend((yyvsp[-1].tree), (yyvsp[0].tree)); } +#line 1610 "y.tab.c" + break; + + case 37: /* args: args redir */ +#line 88 "./parse.y" + { (yyval.tree) = redirappend((yyvsp[-1].tree), (yyvsp[0].tree)); } +#line 1616 "y.tab.c" + break; + + case 38: /* redir: DUP */ +#line 90 "./parse.y" + { (yyval.tree) = (yyvsp[0].tree); } +#line 1622 "y.tab.c" + break; + + case 39: /* redir: REDIR word */ +#line 91 "./parse.y" + { (yyval.tree) = mkredir((yyvsp[-1].tree), (yyvsp[0].tree)); } +#line 1628 "y.tab.c" + break; + + case 40: /* bindings: binding */ +#line 93 "./parse.y" + { (yyval.tree) = treecons((yyvsp[0].tree), NULL); } +#line 1634 "y.tab.c" + break; + + case 41: /* bindings: bindings ';' binding */ +#line 94 "./parse.y" + { (yyval.tree) = treeconsend((yyvsp[-2].tree), (yyvsp[0].tree)); } +#line 1640 "y.tab.c" + break; + + case 42: /* bindings: bindings NL binding */ +#line 95 "./parse.y" + { (yyval.tree) = treeconsend((yyvsp[-2].tree), (yyvsp[0].tree)); } +#line 1646 "y.tab.c" + break; + + case 43: /* binding: %empty */ +#line 97 "./parse.y" + { (yyval.tree) = NULL; } +#line 1652 "y.tab.c" + break; + + case 44: /* binding: fn */ +#line 98 "./parse.y" + { (yyval.tree) = (yyvsp[0].tree); } +#line 1658 "y.tab.c" + break; + + case 45: /* binding: first assign */ +#line 99 "./parse.y" + { (yyval.tree) = mk(nAssign, (yyvsp[-1].tree), (yyvsp[0].tree)); } +#line 1664 "y.tab.c" + break; + + case 46: /* assign: caret '=' caret words */ +#line 101 "./parse.y" + { (yyval.tree) = (yyvsp[0].tree); } +#line 1670 "y.tab.c" + break; + + case 47: /* fn: FN word params '{' body '}' */ +#line 103 "./parse.y" + { (yyval.tree) = fnassign((yyvsp[-4].tree), mklambda((yyvsp[-3].tree), (yyvsp[-1].tree))); } +#line 1676 "y.tab.c" + break; + + case 48: /* fn: FN word */ +#line 104 "./parse.y" + { (yyval.tree) = fnassign((yyvsp[0].tree), NULL); } +#line 1682 "y.tab.c" + break; + + case 49: /* first: comword */ +#line 106 "./parse.y" + { (yyval.tree) = (yyvsp[0].tree); } +#line 1688 "y.tab.c" + break; + + case 50: /* first: first '^' sword */ +#line 107 "./parse.y" + { (yyval.tree) = mk(nConcat, (yyvsp[-2].tree), (yyvsp[0].tree)); } +#line 1694 "y.tab.c" + break; + + case 51: /* sword: comword */ +#line 109 "./parse.y" + { (yyval.tree) = (yyvsp[0].tree); } +#line 1700 "y.tab.c" + break; + + case 52: /* sword: keyword */ +#line 110 "./parse.y" + { (yyval.tree) = mk(nWord, (yyvsp[0].str)); } +#line 1706 "y.tab.c" + break; + + case 53: /* word: sword */ +#line 112 "./parse.y" + { (yyval.tree) = (yyvsp[0].tree); } +#line 1712 "y.tab.c" + break; + + case 54: /* word: word '^' sword */ +#line 113 "./parse.y" + { (yyval.tree) = mk(nConcat, (yyvsp[-2].tree), (yyvsp[0].tree)); } +#line 1718 "y.tab.c" + break; + + case 55: /* comword: param */ +#line 115 "./parse.y" + { (yyval.tree) = (yyvsp[0].tree); } +#line 1724 "y.tab.c" + break; + + case 56: /* comword: '(' nlwords ')' */ +#line 116 "./parse.y" + { (yyval.tree) = (yyvsp[-1].tree); } +#line 1730 "y.tab.c" + break; + + case 57: /* comword: '{' body '}' */ +#line 117 "./parse.y" + { (yyval.tree) = thunkify((yyvsp[-1].tree)); } +#line 1736 "y.tab.c" + break; + + case 58: /* comword: '@' params '{' body '}' */ +#line 118 "./parse.y" + { (yyval.tree) = mklambda((yyvsp[-3].tree), (yyvsp[-1].tree)); } +#line 1742 "y.tab.c" + break; + + case 59: /* comword: '$' sword */ +#line 119 "./parse.y" + { (yyval.tree) = mk(nVar, (yyvsp[0].tree)); } +#line 1748 "y.tab.c" + break; + + case 60: /* comword: '$' sword SUB words ')' */ +#line 120 "./parse.y" + { (yyval.tree) = mk(nVarsub, (yyvsp[-3].tree), (yyvsp[-1].tree)); } +#line 1754 "y.tab.c" + break; + + case 61: /* comword: CALL sword */ +#line 121 "./parse.y" + { (yyval.tree) = mk(nCall, (yyvsp[0].tree)); } +#line 1760 "y.tab.c" + break; + + case 62: /* comword: COUNT sword */ +#line 122 "./parse.y" + { (yyval.tree) = mk(nCall, prefix("%count", treecons(mk(nVar, (yyvsp[0].tree)), NULL))); } +#line 1766 "y.tab.c" + break; + + case 63: /* comword: FLAT sword */ +#line 123 "./parse.y" + { (yyval.tree) = flatten(mk(nVar, (yyvsp[0].tree)), " "); } +#line 1772 "y.tab.c" + break; + + case 64: /* comword: PRIM WORD */ +#line 124 "./parse.y" + { (yyval.tree) = mk(nPrim, (yyvsp[0].str)); } +#line 1778 "y.tab.c" + break; + + case 65: /* comword: '`' sword */ +#line 125 "./parse.y" + { (yyval.tree) = backquote(mk(nVar, mk(nWord, "ifs")), (yyvsp[0].tree)); } +#line 1784 "y.tab.c" + break; + + case 66: /* comword: BFLAT sword */ +#line 126 "./parse.y" + { (yyval.tree) = flatten(backquote(mk(nVar, mk(nWord, "ifs")), (yyvsp[0].tree)), " "); } +#line 1790 "y.tab.c" + break; + + case 67: /* comword: BACKBACK word sword */ +#line 127 "./parse.y" + { (yyval.tree) = backquote((yyvsp[-1].tree), (yyvsp[0].tree)); } +#line 1796 "y.tab.c" + break; + + case 68: /* comword: BBFLAT word sword */ +#line 128 "./parse.y" + { (yyval.tree) = flatten(backquote((yyvsp[-1].tree), (yyvsp[0].tree)), " "); } +#line 1802 "y.tab.c" + break; + + case 69: /* param: WORD */ +#line 130 "./parse.y" + { (yyval.tree) = mk(nWord, (yyvsp[0].str)); } +#line 1808 "y.tab.c" + break; + + case 70: /* param: QWORD */ +#line 131 "./parse.y" + { (yyval.tree) = mk(nQword, (yyvsp[0].str)); } +#line 1814 "y.tab.c" + break; + + case 71: /* params: %empty */ +#line 133 "./parse.y" + { (yyval.tree) = NULL; } +#line 1820 "y.tab.c" + break; + + case 72: /* params: params param */ +#line 134 "./parse.y" + { (yyval.tree) = treeconsend((yyvsp[-1].tree), (yyvsp[0].tree)); } +#line 1826 "y.tab.c" + break; + + case 73: /* words: %empty */ +#line 136 "./parse.y" + { (yyval.tree) = NULL; } +#line 1832 "y.tab.c" + break; + + case 74: /* words: words word */ +#line 137 "./parse.y" + { (yyval.tree) = treeconsend((yyvsp[-1].tree), (yyvsp[0].tree)); } +#line 1838 "y.tab.c" + break; + + case 75: /* nlwords: %empty */ +#line 139 "./parse.y" + { (yyval.tree) = NULL; } +#line 1844 "y.tab.c" + break; + + case 76: /* nlwords: nlwords word */ +#line 140 "./parse.y" + { (yyval.tree) = treeconsend((yyvsp[-1].tree), (yyvsp[0].tree)); } +#line 1850 "y.tab.c" + break; + + case 77: /* nlwords: nlwords NL */ +#line 141 "./parse.y" + { (yyval.tree) = (yyvsp[-1].tree); } +#line 1856 "y.tab.c" + break; + + case 82: /* binder: LOCAL */ +#line 149 "./parse.y" + { (yyval.kind) = nLocal; } +#line 1862 "y.tab.c" + break; + + case 83: /* binder: LET */ +#line 150 "./parse.y" + { (yyval.kind) = nLet; } +#line 1868 "y.tab.c" + break; + + case 84: /* binder: FOR */ +#line 151 "./parse.y" + { (yyval.kind) = nFor; } +#line 1874 "y.tab.c" + break; + + case 85: /* binder: CLOSURE */ +#line 152 "./parse.y" + { (yyval.kind) = nClosure; } +#line 1880 "y.tab.c" + break; + + case 86: /* keyword: '!' */ +#line 154 "./parse.y" + { (yyval.str) = "!"; } +#line 1886 "y.tab.c" + break; + + case 87: /* keyword: '~' */ +#line 155 "./parse.y" + { (yyval.str) = "~"; } +#line 1892 "y.tab.c" + break; + + case 88: /* keyword: '=' */ +#line 156 "./parse.y" + { (yyval.str) = "="; } +#line 1898 "y.tab.c" + break; + + case 89: /* keyword: EXTRACT */ +#line 157 "./parse.y" + { (yyval.str) = "~~"; } +#line 1904 "y.tab.c" + break; + + case 90: /* keyword: LOCAL */ +#line 158 "./parse.y" + { (yyval.str) = "local"; } +#line 1910 "y.tab.c" + break; + + case 91: /* keyword: LET */ +#line 159 "./parse.y" + { (yyval.str) = "let"; } +#line 1916 "y.tab.c" + break; + + case 92: /* keyword: FOR */ +#line 160 "./parse.y" + { (yyval.str) = "for"; } +#line 1922 "y.tab.c" + break; + + case 93: /* keyword: FN */ +#line 161 "./parse.y" + { (yyval.str) = "fn"; } +#line 1928 "y.tab.c" + break; + + case 94: /* keyword: CLOSURE */ +#line 162 "./parse.y" + { (yyval.str) = "%closure"; } +#line 1934 "y.tab.c" + break; + + case 95: /* keyword: MATCH */ +#line 163 "./parse.y" + { (yyval.str) = "match"; } +#line 1940 "y.tab.c" + break; + + +#line 1944 "y.tab.c" + + default: break; + } + /* User semantic actions sometimes alter yychar, and that requires + that yytoken be updated with the new translation. We take the + approach of translating immediately before every use of yytoken. + One alternative is translating here after every semantic action, + but that translation would be missed if the semantic action invokes + YYABORT, YYACCEPT, or YYERROR immediately after altering yychar or + if it invokes YYBACKUP. In the case of YYABORT or YYACCEPT, an + incorrect destructor might then be invoked immediately. In the + case of YYERROR or YYBACKUP, subsequent parser actions might lead + to an incorrect destructor call or verbose syntax error message + before the lookahead is translated. */ + YY_SYMBOL_PRINT ("-> $$ =", YY_CAST (yysymbol_kind_t, yyr1[yyn]), &yyval, &yyloc); + + YYPOPSTACK (yylen); + yylen = 0; + + *++yyvsp = yyval; + + /* Now 'shift' the result of the reduction. Determine what state + that goes to, based on the state we popped back to and the rule + number reduced by. */ + { + const int yylhs = yyr1[yyn] - YYNTOKENS; + const int yyi = yypgoto[yylhs] + *yyssp; + yystate = (0 <= yyi && yyi <= YYLAST && yycheck[yyi] == *yyssp + ? yytable[yyi] + : yydefgoto[yylhs]); + } + + goto yynewstate; + + +/*--------------------------------------. +| yyerrlab -- here on detecting error. | +`--------------------------------------*/ +yyerrlab: + /* Make sure we have latest lookahead translation. See comments at + user semantic actions for why this is necessary. */ + yytoken = yychar == YYEMPTY ? YYSYMBOL_YYEMPTY : YYTRANSLATE (yychar); + /* If not already recovering from an error, report this error. */ + if (!yyerrstatus) + { + ++yynerrs; + yyerror (YY_("syntax error")); + } + + if (yyerrstatus == 3) + { + /* If just tried and failed to reuse lookahead token after an + error, discard it. */ + + if (yychar <= YYEOF) + { + /* Return failure if at end of input. */ + if (yychar == YYEOF) + YYABORT; + } + else + { + yydestruct ("Error: discarding", + yytoken, &yylval); + yychar = YYEMPTY; + } + } + + /* 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 (0) + YYERROR; + ++yynerrs; + + /* Do not reclaim the symbols of the rule whose action triggered + this YYERROR. */ + YYPOPSTACK (yylen); + yylen = 0; + YY_STACK_PRINT (yyss, yyssp); + yystate = *yyssp; + 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[yystate]; + if (!yypact_value_is_default (yyn)) + { + yyn += YYSYMBOL_YYerror; + if (0 <= yyn && yyn <= YYLAST && yycheck[yyn] == YYSYMBOL_YYerror) + { + yyn = yytable[yyn]; + if (0 < yyn) + break; + } + } + + /* Pop the current state because it cannot handle the error token. */ + if (yyssp == yyss) + YYABORT; + + + yydestruct ("Error: popping", + YY_ACCESSING_SYMBOL (yystate), yyvsp); + YYPOPSTACK (1); + yystate = *yyssp; + YY_STACK_PRINT (yyss, yyssp); + } + + YY_IGNORE_MAYBE_UNINITIALIZED_BEGIN + *++yyvsp = yylval; + YY_IGNORE_MAYBE_UNINITIALIZED_END + + + /* Shift the error token. */ + YY_SYMBOL_PRINT ("Shifting", YY_ACCESSING_SYMBOL (yyn), yyvsp, yylsp); + + yystate = yyn; + goto yynewstate; + + +/*-------------------------------------. +| yyacceptlab -- YYACCEPT comes here. | +`-------------------------------------*/ +yyacceptlab: + yyresult = 0; + goto yyreturnlab; + + +/*-----------------------------------. +| yyabortlab -- YYABORT comes here. | +`-----------------------------------*/ +yyabortlab: + yyresult = 1; + goto yyreturnlab; + + +/*-----------------------------------------------------------. +| yyexhaustedlab -- YYNOMEM (memory exhaustion) comes here. | +`-----------------------------------------------------------*/ +yyexhaustedlab: + yyerror (YY_("memory exhausted")); + yyresult = 2; + goto yyreturnlab; + + +/*----------------------------------------------------------. +| yyreturnlab -- parsing is finished, clean up and return. | +`----------------------------------------------------------*/ +yyreturnlab: + if (yychar != YYEMPTY) + { + /* Make sure we have latest lookahead translation. See comments at + user semantic actions for why this is necessary. */ + yytoken = YYTRANSLATE (yychar); + yydestruct ("Cleanup: discarding lookahead", + yytoken, &yylval); + } + /* Do not reclaim the symbols of the rule whose action triggered + this YYABORT or YYACCEPT. */ + YYPOPSTACK (yylen); + YY_STACK_PRINT (yyss, yyssp); + while (yyssp != yyss) + { + yydestruct ("Cleanup: popping", + YY_ACCESSING_SYMBOL (+*yyssp), yyvsp); + YYPOPSTACK (1); + } +#ifndef yyoverflow + if (yyss != yyssa) + YYSTACK_FREE (yyss); +#endif + + return yyresult; +} +