1 /* This file generated automatically using
2 * @Id: skel2c,v 1.4 2016/06/07 00:26:09 tom Exp @
5 /* @Id: yaccpar.skel,v 1.10 2018/05/06 21:28:14 Guy.Harris Exp @ */
9 /* If the skeleton is changed, the banner should be changed so that */
10 /* the altered version can be easily distinguished from the original. */
12 /* The #defines included with the banner are there because they are */
13 /* useful in subsequent code. The macros #defined in the header or */
14 /* the body either are not useful outside of semantic actions or */
15 /* are conditional. */
17 const char *const banner[] =
19 "/* original parser id follows */",
20 "/* yysccsid[] = \"@(#)yaccpar 1.9 (Berkeley) 02/21/93\" */",
21 "/* (use YYMAJOR/YYMINOR for ifdefs dependent on parser version) */",
24 CONCAT1("#define YYMAJOR ", YYMAJOR),
25 CONCAT1("#define YYMINOR ", YYMINOR),
27 CONCAT1("#define YYPATCH ", YYPATCH),
30 "#define YYEMPTY (-1)",
31 "#define yyclearin (yychar = YYEMPTY)",
32 "#define yyerrok (yyerrflag = 0)",
33 "#define YYRECOVERING() (yyerrflag != 0)",
34 "#define YYENOMEM (-2)",
39 const char *const xdecls[] =
42 "extern int YYPARSE_DECL();",
46 const char *const tables[] =
48 "extern YYINT yylhs[];",
49 "extern YYINT yylen[];",
50 "extern YYINT yydefred[];",
51 "extern YYINT yydgoto[];",
52 "extern YYINT yysindex[];",
53 "extern YYINT yyrindex[];",
54 "extern YYINT yygindex[];",
55 "extern YYINT yytable[];",
56 "extern YYINT yycheck[];",
58 "#if YYDEBUG || defined(yytname)",
59 "extern char *yyname[];",
62 "extern char *yyrule[];",
67 const char *const global_vars[] =
76 const char *const impure_vars[] =
87 const char *const hdr_defs[] =
90 "/* define the initial stack-sizes */",
93 "#define YYMAXDEPTH YYSTACKSIZE",
96 "#define YYSTACKSIZE YYMAXDEPTH",
98 "#define YYSTACKSIZE 10000",
99 "#define YYMAXDEPTH 10000",
103 "#define YYINITSTACKSIZE 200",
106 " unsigned stacksize;",
116 const char *const hdr_vars[] =
118 "/* variables for the parser stack */",
119 "static YYSTACKDATA yystack;",
123 const char *const body_vars[] =
131 " /* variables for the parser stack */",
132 " YYSTACKDATA yystack;",
136 const char *const body_1[] =
140 "#include <stdio.h> /* needed for printf */",
143 "#include <stdlib.h> /* needed for malloc, etc */",
144 "#include <string.h> /* needed for memset */",
146 "/* allocate initial stack or double stack size, up to YYMAXDEPTH */",
147 "static int yygrowstack(YYSTACKDATA *data)",
150 " unsigned newsize;",
154 " if ((newsize = data->stacksize) == 0)",
155 " newsize = YYINITSTACKSIZE;",
156 " else if (newsize >= YYMAXDEPTH)",
158 " else if ((newsize *= 2) > YYMAXDEPTH)",
159 " newsize = YYMAXDEPTH;",
161 " i = (int) (data->s_mark - data->s_base);",
162 " newss = (YYINT *)realloc(data->s_base, newsize * sizeof(*newss));",
166 " data->s_base = newss;",
167 " data->s_mark = newss + i;",
169 " newvs = (YYSTYPE *)realloc(data->l_base, newsize * sizeof(*newvs));",
173 " data->l_base = newvs;",
174 " data->l_mark = newvs + i;",
176 " data->stacksize = newsize;",
177 " data->s_last = data->s_base + newsize - 1;",
181 "#if YYPURE || defined(YY_NO_LEAKS)",
182 "static void yyfreestack(YYSTACKDATA *data)",
184 " free(data->s_base);",
185 " free(data->l_base);",
186 " memset(data, 0, sizeof(*data));",
189 "#define yyfreestack(data) /* nothing */",
192 "#define YYABORT goto yyabort",
193 "#define YYREJECT goto yyabort",
194 "#define YYACCEPT goto yyaccept",
195 "#define YYERROR goto yyerrlab",
203 const char *const body_2[] =
205 " int yym, yyn, yystate;",
209 " if ((yys = getenv(\"YYDEBUG\")) != 0)",
212 " if (yyn >= '0' && yyn <= '9')",
213 " yydebug = yyn - '0';",
220 const char *const init_vars[] =
222 " memset(&yyval, 0, sizeof(yyval));",
223 " memset(&yylval, 0, sizeof(yylval));",
228 const char *const body_3[] =
234 " yychar = YYEMPTY;",
238 " memset(&yystack, 0, sizeof(yystack));",
241 " if (yystack.s_base == NULL && yygrowstack(&yystack) == YYENOMEM) goto yyoverflow;",
242 " yystack.s_mark = yystack.s_base;",
243 " yystack.l_mark = yystack.l_base;",
245 " *yystack.s_mark = 0;",
248 " if ((yyn = yydefred[yystate]) != 0) goto yyreduce;",
252 " if (yychar < 0) yychar = YYEOF;",
256 " if ((yys = yyname[YYTRANSLATE(yychar)]) == NULL) yys = yyname[YYUNDFTOKEN];",
257 " printf(\"%sdebug: state %d, reading %d (%s)\\n\",",
258 " YYPREFIX, yystate, yychar, yys);",
262 " if (((yyn = yysindex[yystate]) != 0) && (yyn += yychar) >= 0 &&",
263 " yyn <= YYTABLESIZE && yycheck[yyn] == (YYINT) yychar)",
267 " printf(\"%sdebug: state %d, shifting to state %d\\n\",",
268 " YYPREFIX, yystate, yytable[yyn]);",
270 " if (yystack.s_mark >= yystack.s_last && yygrowstack(&yystack) == YYENOMEM) goto yyoverflow;",
271 " yystate = yytable[yyn];",
272 " *++yystack.s_mark = yytable[yyn];",
273 " *++yystack.l_mark = yylval;",
274 " yychar = YYEMPTY;",
275 " if (yyerrflag > 0) --yyerrflag;",
278 " if (((yyn = yyrindex[yystate]) != 0) && (yyn += yychar) >= 0 &&",
279 " yyn <= YYTABLESIZE && yycheck[yyn] == (YYINT) yychar)",
281 " yyn = yytable[yyn];",
284 " if (yyerrflag != 0) goto yyinrecovery;",
286 " YYERROR_CALL(\"syntax error\");",
288 " goto yyerrlab; /* redundant goto avoids 'unused label' warning */",
293 " if (yyerrflag < 3)",
298 " if (((yyn = yysindex[*yystack.s_mark]) != 0) && (yyn += YYERRCODE) >= 0 &&",
299 " yyn <= YYTABLESIZE && yycheck[yyn] == (YYINT) YYERRCODE)",
303 " printf(\"%sdebug: state %d, error recovery shifting\\",
304 " to state %d\\n\", YYPREFIX, *yystack.s_mark, yytable[yyn]);",
306 " if (yystack.s_mark >= yystack.s_last && yygrowstack(&yystack) == YYENOMEM) goto yyoverflow;",
307 " yystate = yytable[yyn];",
308 " *++yystack.s_mark = yytable[yyn];",
309 " *++yystack.l_mark = yylval;",
316 " printf(\"%sdebug: error recovery discarding state %d\\n\",",
317 " YYPREFIX, *yystack.s_mark);",
319 " if (yystack.s_mark <= yystack.s_base) goto yyabort;",
320 " --yystack.s_mark;",
321 " --yystack.l_mark;",
327 " if (yychar == YYEOF) goto yyabort;",
331 " if ((yys = yyname[YYTRANSLATE(yychar)]) == NULL) yys = yyname[YYUNDFTOKEN];",
332 " printf(\"%sdebug: state %d, error recovery discards token %d (%s)\\n\",",
333 " YYPREFIX, yystate, yychar, yys);",
336 " yychar = YYEMPTY;",
343 " printf(\"%sdebug: state %d, reducing by rule %d (%s)\\n\",",
344 " YYPREFIX, yystate, yyn, yyrule[yyn]);",
346 " yym = yylen[yyn];",
348 " yyval = yystack.l_mark[1-yym];",
350 " memset(&yyval, 0, sizeof yyval);",
357 const char *const trailer[] =
360 " yystack.s_mark -= yym;",
361 " yystate = *yystack.s_mark;",
362 " yystack.l_mark -= yym;",
363 " yym = yylhs[yyn];",
364 " if (yystate == 0 && yym == 0)",
368 " printf(\"%sdebug: after reduction, shifting from state 0 to\\",
369 " state %d\\n\", YYPREFIX, YYFINAL);",
371 " yystate = YYFINAL;",
372 " *++yystack.s_mark = YYFINAL;",
373 " *++yystack.l_mark = yyval;",
377 " if (yychar < 0) yychar = YYEOF;",
381 " if ((yys = yyname[YYTRANSLATE(yychar)]) == NULL) yys = yyname[YYUNDFTOKEN];",
382 " printf(\"%sdebug: state %d, reading %d (%s)\\n\",",
383 " YYPREFIX, YYFINAL, yychar, yys);",
387 " if (yychar == YYEOF) goto yyaccept;",
390 " if (((yyn = yygindex[yym]) != 0) && (yyn += yystate) >= 0 &&",
391 " yyn <= YYTABLESIZE && yycheck[yyn] == (YYINT) yystate)",
392 " yystate = yytable[yyn];",
394 " yystate = yydgoto[yym];",
397 " printf(\"%sdebug: after reduction, shifting from state %d \\",
398 "to state %d\\n\", YYPREFIX, *yystack.s_mark, yystate);",
400 " if (yystack.s_mark >= yystack.s_last && yygrowstack(&yystack) == YYENOMEM) goto yyoverflow;",
401 " *++yystack.s_mark = (YYINT) yystate;",
402 " *++yystack.l_mark = yyval;",
406 " YYERROR_CALL(\"yacc stack overflow\");",
409 " yyfreestack(&yystack);",
413 " yyfreestack(&yystack);",
420 write_section(FILE * fp, const char *const section[])
425 for (i = 0; (s = section[i]) != 0; ++i)
429 fprintf(fp, "%s\n", s);