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-rw-r--r--cpp/demo/book/evictor_filesystem/Grammar.cpp331
1 files changed, 146 insertions, 185 deletions
diff --git a/cpp/demo/book/evictor_filesystem/Grammar.cpp b/cpp/demo/book/evictor_filesystem/Grammar.cpp
index 3694f0de424..7fea980c2c3 100644
--- a/cpp/demo/book/evictor_filesystem/Grammar.cpp
+++ b/cpp/demo/book/evictor_filesystem/Grammar.cpp
@@ -1,22 +1,24 @@
-/* A Bison parser, made by GNU Bison 2.4.3. */
+/* A Bison parser, made by GNU Bison 2.3. */
/* Skeleton implementation for Bison's Yacc-like parsers in C
-
- Copyright (C) 1984, 1989, 1990, 2000, 2001, 2002, 2003, 2004, 2005, 2006,
- 2009, 2010 Free Software Foundation, Inc.
-
- This program is free software: you can redistribute it and/or modify
+
+ Copyright (C) 1984, 1989, 1990, 2000, 2001, 2002, 2003, 2004, 2005, 2006
+ 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.
-
+ the Free Software Foundation; either version 2, 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 <http://www.gnu.org/licenses/>. */
+ along with this program; if not, write to the Free Software
+ Foundation, Inc., 51 Franklin Street, Fifth Floor,
+ Boston, MA 02110-1301, USA. */
/* As a special exception, you may create a larger work that contains
part or all of the Bison parser skeleton and distribute that work
@@ -27,7 +29,7 @@
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. */
@@ -45,7 +47,7 @@
#define YYBISON 1
/* Bison version. */
-#define YYBISON_VERSION "2.4.3"
+#define YYBISON_VERSION "2.3"
/* Skeleton name. */
#define YYSKELETON_NAME "yacc.c"
@@ -53,20 +55,49 @@
/* Pure parsers. */
#define YYPURE 1
-/* Push parsers. */
-#define YYPUSH 0
-
-/* Pull parsers. */
-#define YYPULL 1
-
/* Using locations. */
#define YYLSP_NEEDED 0
-/* Copy the first part of user declarations. */
+/* Tokens. */
+#ifndef YYTOKENTYPE
+# define YYTOKENTYPE
+ /* Put the tokens into the symbol table, so that GDB and other debuggers
+ know about them. */
+ enum yytokentype {
+ TOK_HELP = 258,
+ TOK_EXIT = 259,
+ TOK_STRING = 260,
+ TOK_LIST = 261,
+ TOK_LIST_RECURSIVE = 262,
+ TOK_CREATE_FILE = 263,
+ TOK_CREATE_DIR = 264,
+ TOK_PWD = 265,
+ TOK_CD = 266,
+ TOK_CAT = 267,
+ TOK_WRITE = 268,
+ TOK_RM = 269
+ };
+#endif
+/* Tokens. */
+#define TOK_HELP 258
+#define TOK_EXIT 259
+#define TOK_STRING 260
+#define TOK_LIST 261
+#define TOK_LIST_RECURSIVE 262
+#define TOK_CREATE_FILE 263
+#define TOK_CREATE_DIR 264
+#define TOK_PWD 265
+#define TOK_CD 266
+#define TOK_CAT 267
+#define TOK_WRITE 268
+#define TOK_RM 269
+
+
+
-/* Line 189 of yacc.c */
+/* Copy the first part of user declarations. */
#line 1 "Grammar.y"
@@ -99,9 +130,6 @@ yyerror(const char* s)
-/* Line 189 of yacc.c */
-#line 104 "Grammar.tab.c"
-
/* Enabling traces. */
#ifndef YYDEBUG
# define YYDEBUG 1
@@ -120,43 +148,20 @@ yyerror(const char* s)
# define YYTOKEN_TABLE 0
#endif
-
-/* Tokens. */
-#ifndef YYTOKENTYPE
-# define YYTOKENTYPE
- /* Put the tokens into the symbol table, so that GDB and other debuggers
- know about them. */
- enum yytokentype {
- TOK_HELP = 258,
- TOK_EXIT = 259,
- TOK_STRING = 260,
- TOK_LIST = 261,
- TOK_LIST_RECURSIVE = 262,
- TOK_CREATE_FILE = 263,
- TOK_CREATE_DIR = 264,
- TOK_PWD = 265,
- TOK_CD = 266,
- TOK_CAT = 267,
- TOK_WRITE = 268,
- TOK_RM = 269
- };
-#endif
-
-
-
#if ! defined YYSTYPE && ! defined YYSTYPE_IS_DECLARED
typedef int YYSTYPE;
-# define YYSTYPE_IS_TRIVIAL 1
# define yystype YYSTYPE /* obsolescent; will be withdrawn */
# define YYSTYPE_IS_DECLARED 1
+# define YYSTYPE_IS_TRIVIAL 1
#endif
+
/* Copy the second part of user declarations. */
-/* Line 264 of yacc.c */
-#line 160 "Grammar.tab.c"
+/* Line 216 of yacc.c. */
+#line 165 "Grammar.tab.c"
#ifdef short
# undef short
@@ -231,14 +236,14 @@ typedef short int yytype_int16;
#if (defined __STDC__ || defined __C99__FUNC__ \
|| defined __cplusplus || defined _MSC_VER)
static int
-YYID (int yyi)
+YYID (int i)
#else
static int
-YYID (yyi)
- int yyi;
+YYID (i)
+ int i;
#endif
{
- return yyi;
+ return i;
}
#endif
@@ -319,9 +324,9 @@ void free (void *); /* INFRINGES ON USER NAME SPACE */
/* A type that is properly aligned for any stack member. */
union yyalloc
{
- yytype_int16 yyss_alloc;
- YYSTYPE yyvs_alloc;
-};
+ yytype_int16 yyss;
+ YYSTYPE yyvs;
+ };
/* The size of the maximum gap between one aligned stack and the next. */
# define YYSTACK_GAP_MAXIMUM (sizeof (union yyalloc) - 1)
@@ -355,12 +360,12 @@ union yyalloc
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) \
+# define YYSTACK_RELOCATE(Stack) \
do \
{ \
YYSIZE_T yynewbytes; \
- YYCOPY (&yyptr->Stack_alloc, Stack, yysize); \
- Stack = &yyptr->Stack_alloc; \
+ YYCOPY (&yyptr->Stack, Stack, yysize); \
+ Stack = &yyptr->Stack; \
yynewbytes = yystacksize * sizeof (*Stack) + YYSTACK_GAP_MAXIMUM; \
yyptr += yynewbytes / sizeof (*yyptr); \
} \
@@ -565,18 +570,9 @@ static const yytype_uint8 yystos[] =
/* Like YYERROR except do call yyerror. This remains here temporarily
to ease the transition to the new meaning of YYERROR, for GCC.
- Once GCC version 2 has supplanted version 1, this can go. However,
- YYFAIL appears to be in use. Nevertheless, it is formally deprecated
- in Bison 2.4.2's NEWS entry, where a plan to phase it out is
- discussed. */
+ Once GCC version 2 has supplanted version 1, this can go. */
#define YYFAIL goto yyerrlab
-#if defined YYFAIL
- /* This is here to suppress warnings from the GCC cpp's
- -Wunused-macros. Normally we don't worry about that warning, but
- some users do, and we want to make it easy for users to remove
- YYFAIL uses, which will produce warnings from Bison 2.5. */
-#endif
#define YYRECOVERING() (!!yyerrstatus)
@@ -744,20 +740,17 @@ yy_symbol_print (yyoutput, yytype, yyvaluep)
#if (defined __STDC__ || defined __C99__FUNC__ \
|| defined __cplusplus || defined _MSC_VER)
static void
-yy_stack_print (yytype_int16 *yybottom, yytype_int16 *yytop)
+yy_stack_print (yytype_int16 *bottom, yytype_int16 *top)
#else
static void
-yy_stack_print (yybottom, yytop)
- yytype_int16 *yybottom;
- yytype_int16 *yytop;
+yy_stack_print (bottom, top)
+ yytype_int16 *bottom;
+ yytype_int16 *top;
#endif
{
YYFPRINTF (stderr, "Stack now");
- for (; yybottom <= yytop; yybottom++)
- {
- int yybot = *yybottom;
- YYFPRINTF (stderr, " %d", yybot);
- }
+ for (; bottom <= top; ++bottom)
+ YYFPRINTF (stderr, " %d", *bottom);
YYFPRINTF (stderr, "\n");
}
@@ -791,11 +784,11 @@ yy_reduce_print (yyvsp, yyrule)
/* The symbols being reduced. */
for (yyi = 0; yyi < yynrhs; yyi++)
{
- YYFPRINTF (stderr, " $%d = ", yyi + 1);
+ fprintf (stderr, " $%d = ", yyi + 1);
yy_symbol_print (stderr, yyrhs[yyprhs[yyrule] + yyi],
&(yyvsp[(yyi + 1) - (yynrhs)])
);
- YYFPRINTF (stderr, "\n");
+ fprintf (stderr, "\n");
}
}
@@ -1075,8 +1068,10 @@ yydestruct (yymsg, yytype, yyvaluep)
break;
}
}
+
/* Prevent warnings from -Wmissing-prototypes. */
+
#ifdef YYPARSE_PARAM
#if defined __STDC__ || defined __cplusplus
int yyparse (void *YYPARSE_PARAM);
@@ -1095,9 +1090,10 @@ int yyparse ();
-/*-------------------------.
-| yyparse or yypush_parse. |
-`-------------------------*/
+
+/*----------.
+| yyparse. |
+`----------*/
#ifdef YYPARSE_PARAM
#if (defined __STDC__ || defined __C99__FUNC__ \
@@ -1121,46 +1117,22 @@ yyparse ()
#endif
#endif
{
-/* The lookahead symbol. */
+ /* The look-ahead symbol. */
int yychar;
-/* The semantic value of the lookahead symbol. */
+/* The semantic value of the look-ahead symbol. */
YYSTYPE yylval;
- /* Number of syntax errors so far. */
- int yynerrs;
-
- int yystate;
- /* Number of tokens to shift before error messages enabled. */
- int yyerrstatus;
-
- /* The stacks and their tools:
- `yyss': related to states.
- `yyvs': related to semantic values.
-
- Refer to the stacks thru separate pointers, to allow yyoverflow
- to reallocate them elsewhere. */
-
- /* The state stack. */
- yytype_int16 yyssa[YYINITDEPTH];
- yytype_int16 *yyss;
- yytype_int16 *yyssp;
-
- /* The semantic value stack. */
- YYSTYPE yyvsa[YYINITDEPTH];
- YYSTYPE *yyvs;
- YYSTYPE *yyvsp;
-
- YYSIZE_T yystacksize;
+/* Number of syntax errors so far. */
+int yynerrs;
+ int yystate;
int yyn;
int yyresult;
- /* Lookahead token as an internal (translated) token number. */
- int yytoken;
- /* The variables used to return semantic value and location from the
- action routines. */
- YYSTYPE yyval;
-
+ /* Number of tokens to shift before error messages enabled. */
+ int yyerrstatus;
+ /* Look-ahead token as an internal (translated) token number. */
+ int yytoken = 0;
#if YYERROR_VERBOSE
/* Buffer for error messages, and its allocated size. */
char yymsgbuf[128];
@@ -1168,28 +1140,51 @@ YYSTYPE yylval;
YYSIZE_T yymsg_alloc = sizeof yymsgbuf;
#endif
+ /* Three stacks and their tools:
+ `yyss': related to states,
+ `yyvs': related to semantic values,
+ `yyls': related to locations.
+
+ Refer to the stacks thru separate pointers, to allow yyoverflow
+ to reallocate them elsewhere. */
+
+ /* The state stack. */
+ yytype_int16 yyssa[YYINITDEPTH];
+ yytype_int16 *yyss = yyssa;
+ yytype_int16 *yyssp;
+
+ /* The semantic value stack. */
+ YYSTYPE yyvsa[YYINITDEPTH];
+ YYSTYPE *yyvs = yyvsa;
+ YYSTYPE *yyvsp;
+
+
+
#define YYPOPSTACK(N) (yyvsp -= (N), yyssp -= (N))
+ YYSIZE_T yystacksize = YYINITDEPTH;
+
+ /* The variables used to return semantic value and location from the
+ action routines. */
+ YYSTYPE yyval;
+
+
/* The number of symbols on the RHS of the reduced rule.
Keep to zero when no symbol should be popped. */
int yylen = 0;
- yytoken = 0;
- yyss = yyssa;
- yyvs = yyvsa;
- yystacksize = YYINITDEPTH;
-
YYDPRINTF ((stderr, "Starting parse\n"));
yystate = 0;
yyerrstatus = 0;
yynerrs = 0;
- yychar = YYEMPTY; /* Cause a token to be read. */
+ yychar = YYEMPTY; /* Cause a token to be read. */
/* Initialize stack pointers.
Waste one element of value and location stack
so that they stay on the same level as the state stack.
The wasted elements are never initialized. */
+
yyssp = yyss;
yyvsp = yyvs;
@@ -1219,6 +1214,7 @@ YYSTYPE yylval;
YYSTYPE *yyvs1 = yyvs;
yytype_int16 *yyss1 = yyss;
+
/* 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
@@ -1226,6 +1222,7 @@ YYSTYPE yylval;
yyoverflow (YY_("memory exhausted"),
&yyss1, yysize * sizeof (*yyssp),
&yyvs1, yysize * sizeof (*yyvsp),
+
&yystacksize);
yyss = yyss1;
@@ -1248,8 +1245,9 @@ YYSTYPE yylval;
(union yyalloc *) YYSTACK_ALLOC (YYSTACK_BYTES (yystacksize));
if (! yyptr)
goto yyexhaustedlab;
- YYSTACK_RELOCATE (yyss_alloc, yyss);
- YYSTACK_RELOCATE (yyvs_alloc, yyvs);
+ YYSTACK_RELOCATE (yyss);
+ YYSTACK_RELOCATE (yyvs);
+
# undef YYSTACK_RELOCATE
if (yyss1 != yyssa)
YYSTACK_FREE (yyss1);
@@ -1260,6 +1258,7 @@ YYSTYPE yylval;
yyssp = yyss + yysize - 1;
yyvsp = yyvs + yysize - 1;
+
YYDPRINTF ((stderr, "Stack size increased to %lu\n",
(unsigned long int) yystacksize));
@@ -1269,9 +1268,6 @@ YYSTYPE yylval;
YYDPRINTF ((stderr, "Entering state %d\n", yystate));
- if (yystate == YYFINAL)
- YYACCEPT;
-
goto yybackup;
/*-----------.
@@ -1280,16 +1276,16 @@ YYSTYPE yylval;
yybackup:
/* Do appropriate processing given the current state. Read a
- lookahead token if we need one and don't already have one. */
+ look-ahead token if we need one and don't already have one. */
- /* First try to decide what to do without reference to lookahead token. */
+ /* First try to decide what to do without reference to look-ahead token. */
yyn = yypact[yystate];
if (yyn == YYPACT_NINF)
goto yydefault;
- /* Not known => get a lookahead token if don't already have one. */
+ /* Not known => get a look-ahead token if don't already have one. */
- /* YYCHAR is either YYEMPTY or YYEOF or a valid lookahead symbol. */
+ /* YYCHAR is either YYEMPTY or YYEOF or a valid look-ahead symbol. */
if (yychar == YYEMPTY)
{
YYDPRINTF ((stderr, "Reading a token: "));
@@ -1321,16 +1317,20 @@ yybackup:
goto yyreduce;
}
+ if (yyn == YYFINAL)
+ YYACCEPT;
+
/* Count tokens shifted since error; after three, turn off error
status. */
if (yyerrstatus)
yyerrstatus--;
- /* Shift the lookahead token. */
+ /* Shift the look-ahead token. */
YY_SYMBOL_PRINT ("Shifting", yytoken, &yylval, &yylloc);
- /* Discard the shifted token. */
- yychar = YYEMPTY;
+ /* Discard the shifted token unless it is eof. */
+ if (yychar != YYEOF)
+ yychar = YYEMPTY;
yystate = yyn;
*++yyvsp = yylval;
@@ -1370,40 +1370,30 @@ yyreduce:
switch (yyn)
{
case 2:
-
-/* Line 1464 of yacc.c */
#line 53 "Grammar.y"
{
;}
break;
case 3:
-
-/* Line 1464 of yacc.c */
#line 56 "Grammar.y"
{
;}
break;
case 4:
-
-/* Line 1464 of yacc.c */
#line 64 "Grammar.y"
{
;}
break;
case 5:
-
-/* Line 1464 of yacc.c */
#line 67 "Grammar.y"
{
;}
break;
case 6:
-
-/* Line 1464 of yacc.c */
#line 75 "Grammar.y"
{
parser->usage();
@@ -1411,8 +1401,6 @@ yyreduce:
break;
case 7:
-
-/* Line 1464 of yacc.c */
#line 79 "Grammar.y"
{
return 0;
@@ -1420,8 +1408,6 @@ yyreduce:
break;
case 8:
-
-/* Line 1464 of yacc.c */
#line 83 "Grammar.y"
{
parser->list(false);
@@ -1429,8 +1415,6 @@ yyreduce:
break;
case 9:
-
-/* Line 1464 of yacc.c */
#line 87 "Grammar.y"
{
parser->list(true);
@@ -1438,8 +1422,6 @@ yyreduce:
break;
case 10:
-
-/* Line 1464 of yacc.c */
#line 91 "Grammar.y"
{
parser->createFile((yyvsp[(2) - (2)]));
@@ -1447,8 +1429,6 @@ yyreduce:
break;
case 11:
-
-/* Line 1464 of yacc.c */
#line 95 "Grammar.y"
{
parser->createDir((yyvsp[(2) - (2)]));
@@ -1456,8 +1436,6 @@ yyreduce:
break;
case 12:
-
-/* Line 1464 of yacc.c */
#line 99 "Grammar.y"
{
parser->pwd();
@@ -1465,8 +1443,6 @@ yyreduce:
break;
case 13:
-
-/* Line 1464 of yacc.c */
#line 103 "Grammar.y"
{
parser->cd("/");
@@ -1474,8 +1450,6 @@ yyreduce:
break;
case 14:
-
-/* Line 1464 of yacc.c */
#line 107 "Grammar.y"
{
parser->cd((yyvsp[(2) - (2)]).front());
@@ -1483,8 +1457,6 @@ yyreduce:
break;
case 15:
-
-/* Line 1464 of yacc.c */
#line 111 "Grammar.y"
{
parser->cat((yyvsp[(2) - (2)]).front());
@@ -1492,8 +1464,6 @@ yyreduce:
break;
case 16:
-
-/* Line 1464 of yacc.c */
#line 115 "Grammar.y"
{
parser->write((yyvsp[(2) - (2)]));
@@ -1501,8 +1471,6 @@ yyreduce:
break;
case 17:
-
-/* Line 1464 of yacc.c */
#line 119 "Grammar.y"
{
parser->destroy((yyvsp[(2) - (2)]));
@@ -1510,8 +1478,6 @@ yyreduce:
break;
case 18:
-
-/* Line 1464 of yacc.c */
#line 123 "Grammar.y"
{
parser->usage();
@@ -1520,16 +1486,12 @@ yyreduce:
break;
case 19:
-
-/* Line 1464 of yacc.c */
#line 128 "Grammar.y"
{
;}
break;
case 20:
-
-/* Line 1464 of yacc.c */
#line 136 "Grammar.y"
{
(yyval) = (yyvsp[(2) - (2)]);
@@ -1538,8 +1500,6 @@ yyreduce:
break;
case 21:
-
-/* Line 1464 of yacc.c */
#line 141 "Grammar.y"
{
(yyval) = (yyvsp[(1) - (1)]);
@@ -1547,9 +1507,8 @@ yyreduce:
break;
-
-/* Line 1464 of yacc.c */
-#line 1553 "Grammar.tab.c"
+/* Line 1267 of yacc.c. */
+#line 1512 "Grammar.tab.c"
default: break;
}
YY_SYMBOL_PRINT ("-> $$ =", yyr1[yyn], &yyval, &yyloc);
@@ -1560,6 +1519,7 @@ yyreduce:
*++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. */
@@ -1624,7 +1584,7 @@ yyerrlab:
if (yyerrstatus == 3)
{
- /* If just tried and failed to reuse lookahead token after an
+ /* If just tried and failed to reuse look-ahead token after an
error, discard it. */
if (yychar <= YYEOF)
@@ -1641,7 +1601,7 @@ yyerrlab:
}
}
- /* Else will try to reuse lookahead token after shifting the error
+ /* Else will try to reuse look-ahead token after shifting the error
token. */
goto yyerrlab1;
@@ -1698,6 +1658,9 @@ yyerrlab1:
YY_STACK_PRINT (yyss, yyssp);
}
+ if (yyn == YYFINAL)
+ YYACCEPT;
+
*++yyvsp = yylval;
@@ -1722,7 +1685,7 @@ yyabortlab:
yyresult = 1;
goto yyreturn;
-#if !defined(yyoverflow) || YYERROR_VERBOSE
+#ifndef yyoverflow
/*-------------------------------------------------.
| yyexhaustedlab -- memory exhaustion comes here. |
`-------------------------------------------------*/
@@ -1733,7 +1696,7 @@ yyexhaustedlab:
#endif
yyreturn:
- if (yychar != YYEMPTY)
+ if (yychar != YYEOF && yychar != YYEMPTY)
yydestruct ("Cleanup: discarding lookahead",
yytoken, &yylval);
/* Do not reclaim the symbols of the rule which action triggered
@@ -1759,8 +1722,6 @@ yyreturn:
}
-
-/* Line 1684 of yacc.c */
#line 146 "Grammar.y"
generated by cgit v1.2.3 (git 2.46.0) at 2025-08-03 22:11:36 +0000