diff options
Diffstat (limited to 'awktab.c')
-rw-r--r-- | awktab.c | 339 |
1 files changed, 171 insertions, 168 deletions
@@ -1,47 +1,48 @@ /* A Bison parser, made from ./awk.y - by GNU Bison version 1.28 */ + by GNU Bison version 1.25 + */ #define YYBISON 1 /* Identify Bison output. */ -#define FUNC_CALL 257 -#define NAME 258 -#define REGEXP 259 -#define ERROR 260 -#define YNUMBER 261 -#define YSTRING 262 -#define RELOP 263 -#define APPEND_OP 264 -#define ASSIGNOP 265 -#define MATCHOP 266 -#define NEWLINE 267 -#define CONCAT_OP 268 -#define LEX_BEGIN 269 -#define LEX_END 270 -#define LEX_IF 271 -#define LEX_ELSE 272 -#define LEX_RETURN 273 -#define LEX_DELETE 274 -#define LEX_WHILE 275 -#define LEX_DO 276 -#define LEX_FOR 277 -#define LEX_BREAK 278 -#define LEX_CONTINUE 279 -#define LEX_PRINT 280 -#define LEX_PRINTF 281 -#define LEX_NEXT 282 -#define LEX_EXIT 283 -#define LEX_FUNCTION 284 -#define LEX_GETLINE 285 -#define LEX_NEXTFILE 286 -#define LEX_IN 287 -#define LEX_AND 288 -#define LEX_OR 289 -#define INCREMENT 290 -#define DECREMENT 291 -#define LEX_BUILTIN 292 -#define LEX_LENGTH 293 -#define UNARY 294 +#define FUNC_CALL 258 +#define NAME 259 +#define REGEXP 260 +#define ERROR 261 +#define YNUMBER 262 +#define YSTRING 263 +#define RELOP 264 +#define APPEND_OP 265 +#define ASSIGNOP 266 +#define MATCHOP 267 +#define NEWLINE 268 +#define CONCAT_OP 269 +#define LEX_BEGIN 270 +#define LEX_END 271 +#define LEX_IF 272 +#define LEX_ELSE 273 +#define LEX_RETURN 274 +#define LEX_DELETE 275 +#define LEX_WHILE 276 +#define LEX_DO 277 +#define LEX_FOR 278 +#define LEX_BREAK 279 +#define LEX_CONTINUE 280 +#define LEX_PRINT 281 +#define LEX_PRINTF 282 +#define LEX_NEXT 283 +#define LEX_EXIT 284 +#define LEX_FUNCTION 285 +#define LEX_GETLINE 286 +#define LEX_NEXTFILE 287 +#define LEX_IN 288 +#define LEX_AND 289 +#define LEX_OR 290 +#define INCREMENT 291 +#define DECREMENT 292 +#define LEX_BUILTIN 293 +#define LEX_LENGTH 294 +#define UNARY 295 #line 26 "./awk.y" @@ -129,7 +130,7 @@ typedef union { #define YYFLAG -32768 #define YYNTBASE 62 -#define YYTRANSLATE(x) ((unsigned)(x) <= 294 ? yytranslate[x] : 107) +#define YYTRANSLATE(x) ((unsigned)(x) <= 295 ? yytranslate[x] : 107) static const char yytranslate[] = { 0, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, @@ -157,11 +158,11 @@ static const char 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, 2, 2, 2, 1, 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, 52 + 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, 52 }; #if YYDEBUG != 0 @@ -780,8 +781,7 @@ static const short yycheck[] = { 3, 46, 47, -1, -1, -1, 51, -1, -1, 54, 55 }; /* -*-C-*- Note some compilers choke on comments on `#line' lines. */ -#line 3 "/usr/lib/bison.simple" -/* This file comes from bison-1.28. */ +#line 3 "/usr/local/share/bison.simple" /* Skeleton output parser for bison, Copyright (C) 1984, 1989, 1990 Free Software Foundation, Inc. @@ -798,66 +798,46 @@ static const short yycheck[] = { 3, You should have received a copy of the GNU General Public License along with this program; if not, write to the Free Software - Foundation, Inc., 59 Temple Place - Suite 330, - Boston, MA 02111-1307, USA. */ + Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */ /* As a special exception, when this file is copied by Bison into a Bison output file, you may use that output file without restriction. This special exception was added by the Free Software Foundation in version 1.24 of Bison. */ -/* This is the parser code that is written into each bison parser - when the %semantic_parser declaration is not specified in the grammar. - It was written by Richard Stallman by simplifying the hairy parser - used when %semantic_parser is specified. */ - -#ifndef YYSTACK_USE_ALLOCA -#ifdef alloca -#define YYSTACK_USE_ALLOCA -#else /* alloca not defined */ +#ifndef alloca #ifdef __GNUC__ -#define YYSTACK_USE_ALLOCA #define alloca __builtin_alloca #else /* not GNU C. */ -#if (!defined (__STDC__) && defined (sparc)) || defined (__sparc__) || defined (__sparc) || defined (__sgi) || (defined (__sun) && defined (__i386)) -#define YYSTACK_USE_ALLOCA +#if (!defined (__STDC__) && defined (sparc)) || defined (__sparc__) || defined (__sparc) || defined (__sgi) #include <alloca.h> #else /* not sparc */ -/* We think this test detects Watcom and Microsoft C. */ -/* This used to test MSDOS, but that is a bad idea - since that symbol is in the user namespace. */ -#if (defined (_MSDOS) || defined (_MSDOS_)) && !defined (__TURBOC__) -#if 0 /* No need for malloc.h, which pollutes the namespace; - instead, just don't use alloca. */ +#if defined (MSDOS) && !defined (__TURBOC__) #include <malloc.h> -#endif #else /* not MSDOS, or __TURBOC__ */ #if defined(_AIX) -/* I don't know what this was needed for, but it pollutes the namespace. - So I turned it off. rms, 2 May 1997. */ -/* #include <malloc.h> */ +#include <malloc.h> #pragma alloca -#define YYSTACK_USE_ALLOCA -#else /* not MSDOS, or __TURBOC__, or _AIX */ -#if 0 -#ifdef __hpux /* haible@ilog.fr says this works for HPUX 9.05 and up, - and on HPUX 10. Eventually we can turn this on. */ -#define YYSTACK_USE_ALLOCA -#define alloca __builtin_alloca +#else /* not MSDOS, __TURBOC__, or _AIX */ +#ifdef __hpux +#ifdef __cplusplus +extern "C" { +void *alloca (unsigned int); +}; +#else /* not __cplusplus */ +void *alloca (); +#endif /* not __cplusplus */ #endif /* __hpux */ -#endif #endif /* not _AIX */ #endif /* not MSDOS, or __TURBOC__ */ -#endif /* not sparc */ -#endif /* not GNU C */ -#endif /* alloca not defined */ -#endif /* YYSTACK_USE_ALLOCA not defined */ +#endif /* not sparc. */ +#endif /* not GNU C. */ +#endif /* alloca not defined. */ -#ifdef YYSTACK_USE_ALLOCA -#define YYSTACK_ALLOC alloca -#else -#define YYSTACK_ALLOC malloc -#endif +/* This is the parser code that is written into each bison parser + when the %semantic_parser declaration is not specified in the grammar. + It was written by Richard Stallman by simplifying the hairy parser + used when %semantic_parser is specified. */ /* Note: there must be only one dollar sign in this file. It is replaced by the list of actions, each action @@ -867,8 +847,8 @@ static const short yycheck[] = { 3, #define yyclearin (yychar = YYEMPTY) #define YYEMPTY -2 #define YYEOF 0 -#define YYACCEPT goto yyacceptlab -#define YYABORT goto yyabortlab +#define YYACCEPT return(0) +#define YYABORT return(1) #define YYERROR goto yyerrlab1 /* Like YYERROR except do call yyerror. This remains here temporarily to ease the @@ -949,12 +929,12 @@ int yydebug; /* nonzero means print parse trace */ #ifndef YYMAXDEPTH #define YYMAXDEPTH 10000 #endif - -/* Define __yy_memcpy. Note that the size argument - should be passed with type unsigned int, because that is what the non-GCC - definitions require. With GCC, __builtin_memcpy takes an arg - of type size_t, but it can handle unsigned int. */ +/* Prevent warning if -Wstrict-prototypes. */ +#ifdef __GNUC__ +int yyparse (void); +#endif + #if __GNUC__ > 1 /* GNU C and GNU C++ define this. */ #define __yy_memcpy(TO,FROM,COUNT) __builtin_memcpy(TO,FROM,COUNT) #else /* not GNU C or C++ */ @@ -966,7 +946,7 @@ static void __yy_memcpy (to, from, count) char *to; char *from; - unsigned int count; + int count; { register char *f = from; register char *t = to; @@ -981,10 +961,10 @@ __yy_memcpy (to, from, count) /* This is the most reliable way to avoid incompatibilities in available built-in functions on various systems. */ static void -__yy_memcpy (char *to, char *from, unsigned int count) +__yy_memcpy (char *to, char *from, int count) { - register char *t = to; register char *f = from; + register char *t = to; register int i = count; while (i-- > 0) @@ -994,7 +974,7 @@ __yy_memcpy (char *to, char *from, unsigned int count) #endif #endif -#line 217 "/usr/lib/bison.simple" +#line 196 "/usr/local/share/bison.simple" /* The user can define YYPARSE_PARAM as the name of an argument to be passed into yyparse. The argument should have type void *. @@ -1015,15 +995,6 @@ __yy_memcpy (char *to, char *from, unsigned int count) #define YYPARSE_PARAM_DECL #endif /* not YYPARSE_PARAM */ -/* Prevent warning if -Wstrict-prototypes. */ -#ifdef __GNUC__ -#ifdef YYPARSE_PARAM -int yyparse (void *); -#else -int yyparse (void); -#endif -#endif - int yyparse(YYPARSE_PARAM_ARG) YYPARSE_PARAM_DECL @@ -1052,7 +1023,6 @@ yyparse(YYPARSE_PARAM_ARG) #endif int yystacksize = YYINITDEPTH; - int yyfree_stacks = 0; #ifdef YYPURE int yychar; @@ -1137,32 +1107,18 @@ yynewstate: if (yystacksize >= YYMAXDEPTH) { yyerror("parser stack overflow"); - if (yyfree_stacks) - { - free (yyss); - free (yyvs); -#ifdef YYLSP_NEEDED - free (yyls); -#endif - } return 2; } yystacksize *= 2; if (yystacksize > YYMAXDEPTH) yystacksize = YYMAXDEPTH; -#ifndef YYSTACK_USE_ALLOCA - yyfree_stacks = 1; -#endif - yyss = (short *) YYSTACK_ALLOC (yystacksize * sizeof (*yyssp)); - __yy_memcpy ((char *)yyss, (char *)yyss1, - size * (unsigned int) sizeof (*yyssp)); - yyvs = (YYSTYPE *) YYSTACK_ALLOC (yystacksize * sizeof (*yyvsp)); - __yy_memcpy ((char *)yyvs, (char *)yyvs1, - size * (unsigned int) sizeof (*yyvsp)); + yyss = (short *) alloca (yystacksize * sizeof (*yyssp)); + __yy_memcpy ((char *)yyss, (char *)yyss1, size * sizeof (*yyssp)); + yyvs = (YYSTYPE *) alloca (yystacksize * sizeof (*yyvsp)); + __yy_memcpy ((char *)yyvs, (char *)yyvs1, size * sizeof (*yyvsp)); #ifdef YYLSP_NEEDED - yyls = (YYLTYPE *) YYSTACK_ALLOC (yystacksize * sizeof (*yylsp)); - __yy_memcpy ((char *)yyls, (char *)yyls1, - size * (unsigned int) sizeof (*yylsp)); + yyls = (YYLTYPE *) alloca (yystacksize * sizeof (*yylsp)); + __yy_memcpy ((char *)yyls, (char *)yyls1, size * sizeof (*yylsp)); #endif #endif /* no yyoverflow */ @@ -2211,7 +2167,7 @@ case 161: break;} } /* the action file gets copied in in place of this dollarsign */ -#line 543 "/usr/lib/bison.simple" +#line 498 "/usr/local/share/bison.simple" yyvsp -= yylen; yyssp -= yylen; @@ -2406,30 +2362,6 @@ yyerrhandle: yystate = yyn; goto yynewstate; - - yyacceptlab: - /* YYACCEPT comes here. */ - if (yyfree_stacks) - { - free (yyss); - free (yyvs); -#ifdef YYLSP_NEEDED - free (yyls); -#endif - } - return 0; - - yyabortlab: - /* YYABORT comes here. */ - if (yyfree_stacks) - { - free (yyss); - free (yyvs); -#ifdef YYLSP_NEEDED - free (yyls); -#endif - } - return 1; } #line 867 "./awk.y" @@ -2463,9 +2395,15 @@ extern NODE static struct token tokentab[] = { {"BEGIN", Node_illegal, LEX_BEGIN, 0, 0}, {"END", Node_illegal, LEX_END, 0, 0}, +#ifdef BITOPS +{"and", Node_builtin, LEX_BUILTIN, GAWKX|A(2), do_and}, +#endif /* BITOPS */ {"atan2", Node_builtin, LEX_BUILTIN, NOT_OLD|A(2), do_atan2}, {"break", Node_K_break, LEX_BREAK, 0, 0}, {"close", Node_builtin, LEX_BUILTIN, NOT_OLD|A(1), do_close}, +#ifdef BITOPS +{"compl", Node_builtin, LEX_BUILTIN, GAWKX|A(1), do_compl}, +#endif /* BITOPS */ {"continue", Node_K_continue, LEX_CONTINUE, 0, 0}, {"cos", Node_builtin, LEX_BUILTIN, NOT_OLD|A(1), do_cos}, {"delete", Node_K_delete, LEX_DELETE, NOT_OLD, 0}, @@ -2486,19 +2424,31 @@ static struct token tokentab[] = { {"int", Node_builtin, LEX_BUILTIN, A(1), do_int}, {"length", Node_builtin, LEX_LENGTH, A(0)|A(1), do_length}, {"log", Node_builtin, LEX_BUILTIN, A(1), do_log}, +#ifdef BITOPS +{"lshift", Node_builtin, LEX_BUILTIN, GAWKX|A(2), do_lshift}, +#endif /* BITOPS */ {"match", Node_builtin, LEX_BUILTIN, NOT_OLD|A(2), do_match}, {"next", Node_K_next, LEX_NEXT, 0, 0}, {"nextfile", Node_K_nextfile, LEX_NEXTFILE, GAWKX, 0}, +#ifdef BITOPS +{"or", Node_builtin, LEX_BUILTIN, GAWKX|A(2), do_or}, +#endif /* BITOPS */ {"print", Node_K_print, LEX_PRINT, 0, 0}, {"printf", Node_K_printf, LEX_PRINTF, 0, 0}, {"rand", Node_builtin, LEX_BUILTIN, NOT_OLD|A(0), do_rand}, {"return", Node_K_return, LEX_RETURN, NOT_OLD, 0}, +#ifdef BITOPS +{"rshift", Node_builtin, LEX_BUILTIN, GAWKX|A(2), do_rshift}, +#endif /* BITOPS */ {"sin", Node_builtin, LEX_BUILTIN, NOT_OLD|A(1), do_sin}, {"split", Node_builtin, LEX_BUILTIN, A(2)|A(3), do_split}, {"sprintf", Node_builtin, LEX_BUILTIN, 0, do_sprintf}, {"sqrt", Node_builtin, LEX_BUILTIN, A(1), do_sqrt}, {"srand", Node_builtin, LEX_BUILTIN, NOT_OLD|A(0)|A(1), do_srand}, {"strftime", Node_builtin, LEX_BUILTIN, GAWKX|A(0)|A(1)|A(2), do_strftime}, +#ifdef BITOPS +{"strtonum", Node_builtin, LEX_BUILTIN, GAWKX|A(1), do_strtonum}, +#endif /* BITOPS */ {"sub", Node_builtin, LEX_BUILTIN, NOT_OLD|A(2)|A(3), do_sub}, {"substr", Node_builtin, LEX_BUILTIN, A(2)|A(3), do_substr}, {"system", Node_builtin, LEX_BUILTIN, NOT_OLD|A(1), do_system}, @@ -2506,6 +2456,9 @@ static struct token tokentab[] = { {"tolower", Node_builtin, LEX_BUILTIN, NOT_OLD|A(1), do_tolower}, {"toupper", Node_builtin, LEX_BUILTIN, NOT_OLD|A(1), do_toupper}, {"while", Node_K_while, LEX_WHILE, 0, 0}, +#ifdef BITOPS +{"xor", Node_builtin, LEX_BUILTIN, GAWKX|A(2), do_xor}, +#endif /* BITOPS */ }; /* yyerror --- print a syntax error message, show where */ @@ -2590,11 +2543,13 @@ get_src_buf() register char *scan; static int len = 0; static int did_newline = FALSE; + int newfile; struct stat sbuf; # define SLOP 128 /* enough space to hold most source lines */ again: + newfile = FALSE; if (nextfile > numfiles) return NULL; @@ -2672,17 +2627,7 @@ again: in, strerror(errno)); } len = optimal_bufsize(fd, & sbuf); - if (sbuf.st_size == 0) { - static int warned = FALSE; - - if (do_lint && ! warned) { - warned = TRUE; - warning("source file `%s' is empty", source); - } - close(fd); - ++nextfile; - goto again; - } + newfile = TRUE; if (buf != NULL) free(buf); emalloc(buf, char *, len + SLOP, "get_src_buf"); @@ -2716,6 +2661,14 @@ again: fatal("can't read sourcefile \"%s\" (%s)", source, strerror(errno)); if (n == 0) { + if (newfile) { + static int warned = FALSE; + + if (do_lint && ! warned) { + warned = TRUE; + warning("source file `%s' is empty", source); + } + } close(fd); samefile = FALSE; nextfile++; @@ -2819,6 +2772,7 @@ yylex() static int did_newline = FALSE; char *tokkey; static int lasttok = 0, eof_warned = FALSE; + int inhex = FALSE; if (nextc() == EOF) { if (lasttok != NEWLINE) { @@ -2984,8 +2938,10 @@ retry: if (nextc() == '\n') { sourceline++; goto retry; - } else + } else { yyerror("backslash not last character on line"); + exit(1); + } break; case '$': @@ -3152,6 +3108,7 @@ retry: if (c == '\n') { pushback(); yyerror("unterminated string"); + exit(1); } if (c == '\\') { c = nextc(); @@ -3165,6 +3122,7 @@ retry: if (c == EOF) { pushback(); yyerror("unterminated string"); + exit(1); } tokadd(c); } @@ -3207,6 +3165,15 @@ retry: tokadd(c); switch (c) { +#ifdef BITOPS + case 'x': + case 'X': + if (do_traditional) + goto done; + if (tok == tokstart + 2) + inhex = TRUE; + break; +#endif /* BITOTS */ case '.': if (seen_point) { gotnumber = TRUE; @@ -3216,6 +3183,8 @@ retry: break; case 'e': case 'E': + if (inhex) + break; if (seen_e) { gotnumber = TRUE; break; @@ -3226,6 +3195,21 @@ retry: else pushback(); break; +#ifdef BITOPS + case 'a': + case 'A': + case 'b': + case 'B': + case 'c': + case 'C': + case 'D': + case 'd': + case 'f': + case 'F': + if (do_traditional || ! inhex) + goto done; + /* fall through */ +#endif case '0': case '1': case '2': @@ -3238,6 +3222,7 @@ retry: case '9': break; default: + done: gotnumber = TRUE; } if (gotnumber) @@ -3251,6 +3236,11 @@ retry: eof_warned = TRUE; } tokadd('\0'); +#ifdef BITOPS + if (! do_traditional && isnondecimal(tokstart)) + yylval.nodeval = make_number(nondec2awknum(tokstart, strlen(tokstart))); + else +#endif /* BITOPS */ yylval.nodeval = make_number(atof(tokstart)); yylval.nodeval->flags |= PERM; return lasttok = YNUMBER; @@ -3276,8 +3266,10 @@ retry: return lasttok = '|'; } - if (c != '_' && ! isalpha(c)) + if (c != '_' && ! isalpha(c)) { yyerror("Invalid char '%c' in expression\n", c); + exit(1); + } /* it's some type of name-type-thing. Find its length. */ tok = tokstart; @@ -3518,6 +3510,9 @@ NODE *func; int count, i, j, dups; NODE *params; + if (func == NULL) /* error earlier */ + return TRUE; + fname = func->param; count = func->param_cnt; params = func->rnode; @@ -3525,11 +3520,19 @@ NODE *func; if (count == 0) /* no args, no problem */ return FALSE; + if (params == NULL) /* error earlier */ + return TRUE; + emalloc(names, char **, count * sizeof(char *), "dup_parms"); i = 0; - for (np = params; np != NULL; np = np->rnode) + for (np = params; np != NULL; np = np->rnode) { + if (np->param == NULL) { /* error earlier, give up, go home */ + free(names); + return TRUE; + } names[i++] = np->param; + } dups = 0; for (i = 1; i < count; i++) { |