skeleton.c

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/*************************************************************************\
* Copyright (c) 2002 The University of Chicago, as Operator of Argonne
*     National Laboratory.
* Copyright (c) 2002 The Regents of the University of California, as
*     Operator of Los Alamos National Laboratory.
* EPICS BASE is distributed subject to a Software License Agreement found
* in file LICENSE that is included with this distribution.
\*************************************************************************/
#include "defs.h"

/*  If the skeleton is changed, the banner should be changed so that    */
/*  the altered version can be easily distinguished from the original.  */
/*                                                                      */
/*  The #defines included with the banner are there because they are    */
/*  useful in subsequent code.  The macros #defined in the header or    */
/*  the body either are not useful outside of semantic actions or       */
/*  are conditional.                                                    */

char *banner[] =
{
    "#define YYBYACC 1",
    "#define YYMAJOR 1",
    "#define YYMINOR 9",
    "#define yyclearin (yychar=(-1))",
    "#define yyerrok (yyerrflag=0)",
    "#define YYRECOVERING (yyerrflag!=0)",
    "static int yyparse(void);",/* JRW */
    0
};


char *tables[] =
{
    "static short yylhs[];",    /* JRW */
    "static short yylen[];",    /* JRW */
    "static short yydefred[];", /* JRW */
    "static short yydgoto[];",  /* JRW */
    "static short yysindex[];", /* JRW */
    "static short yyrindex[];", /* JRW */
    "static short yygindex[];", /* JRW */
    "static short yytable[];",  /* JRW */
    "static short yycheck[];",  /* JRW */
    "#if YYDEBUG",
    "static char *yyname[];",   /* JRW */
    "static char *yyrule[];",   /* JRW */
    "#endif",
    0
};


char *header[] =
{
    "#ifdef YYSTACKSIZE",
    "#undef YYMAXDEPTH",
    "#define YYMAXDEPTH YYSTACKSIZE",
    "#else",
    "#ifdef YYMAXDEPTH",
    "#define YYSTACKSIZE YYMAXDEPTH",
    "#else",
    "#define YYSTACKSIZE 500",
    "#define YYMAXDEPTH 500",
    "#endif",
    "#endif",
    "#if YYDEBUG",                              /* MRK */
    "static int yydebug;",                      /* JRW */
    "#endif",                                   /* MRK */
    "static int yynerrs;",                      /* JRW */
    "static int yyerrflag;",                    /* JRW */
    "static int yychar;",                       /* JRW */
    "static short *yyssp;",                     /* JRW */
    "static YYSTYPE *yyvsp;",                   /* JRW */
    "static YYSTYPE yyval;",                    /* JRW */
    "static YYSTYPE yylval;",                   /* JRW */
    "static short yyss[YYSTACKSIZE];",          /* JRW */
    "static YYSTYPE yyvs[YYSTACKSIZE];",        /* JRW */
    "#define yystacksize YYSTACKSIZE",
    0
};


char *body[] =
{
    "#define YYABORT goto yyabort",
    "#define YYREJECT goto yyabort",
    "#define YYACCEPT goto yyaccept",
    "#define YYERROR goto yyerrlab",
    "static int",               /* JRW */
    "yyparse(void)",            /* JRW */
    "{",
    "    int yym, yyn, yystate;",
    "#if YYDEBUG",
    "    char *yys;",
    "    extern char *getenv();",
    "",
    "    if ((yys = getenv(\"YYDEBUG\")))",
    "    {",
    "        yyn = *yys;",
    "        if (yyn >= '0' && yyn <= '9')",
    "            yydebug = yyn - '0';",
    "    }",
    "#endif",
    "",
    "    yynerrs = 0;",
    "    yyerrflag = 0;",
    "    yychar = (-1);",
    "",
    "    yyssp = yyss;",
    "    yyvsp = yyvs;",
    "    *yyssp = yystate = 0;",
    "",
    "yyloop:",
    "    if ((yyn = yydefred[yystate])) goto yyreduce;",
    "    if (yychar < 0)",
    "    {",
    "        if ((yychar = yylex()) < 0) yychar = 0;",
    "#if YYDEBUG",
    "        if (yydebug)",
    "        {",
    "            yys = 0;",
    "            if (yychar <= YYMAXTOKEN) yys = yyname[yychar];",
    "            if (!yys) yys = \"illegal-symbol\";",
    "            printf(\"%sdebug: state %d, reading %d (%s)\\n\",",
    "                    YYPREFIX, yystate, yychar, yys);",
    "        }",
    "#endif",
    "    }",
    "    if ((yyn = yysindex[yystate]) && (yyn += yychar) >= 0 &&",
    "            yyn <= YYTABLESIZE && yycheck[yyn] == yychar)",
    "    {",
    "#if YYDEBUG",
    "        if (yydebug)",
    "            printf(\"%sdebug: state %d, shifting to state %d\\n\",",
    "                    YYPREFIX, yystate, yytable[yyn]);",
    "#endif",
    "        if (yyssp >= yyss + yystacksize - 1)",
    "        {",
    "            goto yyoverflow;",
    "        }",
    "        *++yyssp = yystate = yytable[yyn];",
    "        *++yyvsp = yylval;",
    "        yychar = (-1);",
    "        if (yyerrflag > 0)  --yyerrflag;",
    "        goto yyloop;",
    "    }",
    "    if ((yyn = yyrindex[yystate]) && (yyn += yychar) >= 0 &&",
    "            yyn <= YYTABLESIZE && yycheck[yyn] == yychar)",
    "    {",
    "        yyn = yytable[yyn];",
    "        goto yyreduce;",
    "    }",
    "    if (yyerrflag) goto yyinrecovery;",
    "    yyerror(\"syntax error\");",
    "    ++yynerrs;",
    "yyinrecovery:",
    "    if (yyerrflag < 3)",
    "    {",
    "        yyerrflag = 3;",
    "        for (;;)",
    "        {",
    "            if ((yyn = yysindex[*yyssp]) && (yyn += YYERRCODE) >= 0 &&",
    "                    yyn <= YYTABLESIZE && yycheck[yyn] == YYERRCODE)",
    "            {",
    "#if YYDEBUG",
    "                if (yydebug)",
    "                    printf(\"%sdebug: state %d, error recovery shifting\\",
    " to state %d\\n\", YYPREFIX, *yyssp, yytable[yyn]);",
    "#endif",
    "                if (yyssp >= yyss + yystacksize - 1)",
    "                {",
    "                    goto yyoverflow;",
    "                }",
    "                *++yyssp = yystate = yytable[yyn];",
    "                *++yyvsp = yylval;",
    "                goto yyloop;",
    "            }",
    "            else",
    "            {",
    "#if YYDEBUG",
    "                if (yydebug)",
    "                    printf(\"%sdebug: error recovery discarding state %d\
\\n\",",
    "                            YYPREFIX, *yyssp);",
    "#endif",
    "                if (yyssp <= yyss) goto yyabort;",
    "                --yyssp;",
    "                --yyvsp;",
    "            }",
    "        }",
    "    }",
    "    else",
    "    {",
    "        if (yychar == 0) goto yyabort;",
    "#if YYDEBUG",
    "        if (yydebug)",
    "        {",
    "            yys = 0;",
    "            if (yychar <= YYMAXTOKEN) yys = yyname[yychar];",
    "            if (!yys) yys = \"illegal-symbol\";",
    "            printf(\"%sdebug: state %d, error recovery discards token %d\
 (%s)\\n\",",
    "                    YYPREFIX, yystate, yychar, yys);",
    "        }",
    "#endif",
    "        yychar = (-1);",
    "        goto yyloop;",
    "    }",
    "yyreduce:",
    "#if YYDEBUG",
    "    if (yydebug)",
    "        printf(\"%sdebug: state %d, reducing by rule %d (%s)\\n\",",
    "                YYPREFIX, yystate, yyn, yyrule[yyn]);",
    "#endif",
    "    yym = yylen[yyn];",
    "    yyval = yyvsp[1-yym];",
    "    switch (yyn)",
    "    {",
    0
};


char *trailer[] =
{
    "    }",
    "    yyssp -= yym;",
    "    yystate = *yyssp;",
    "    yyvsp -= yym;",
    "    yym = yylhs[yyn];",
    "    if (yystate == 0 && yym == 0)",
    "    {",
    "#if YYDEBUG",
    "        if (yydebug)",
    "            printf(\"%sdebug: after reduction, shifting from state 0 to\\",
    " state %d\\n\", YYPREFIX, YYFINAL);",
    "#endif",
    "        yystate = YYFINAL;",
    "        *++yyssp = YYFINAL;",
    "        *++yyvsp = yyval;",
    "        if (yychar < 0)",
    "        {",
    "            if ((yychar = yylex()) < 0) yychar = 0;",
    "#if YYDEBUG",
    "            if (yydebug)",
    "            {",
    "                yys = 0;",
    "                if (yychar <= YYMAXTOKEN) yys = yyname[yychar];",
    "                if (!yys) yys = \"illegal-symbol\";",
    "                printf(\"%sdebug: state %d, reading %d (%s)\\n\",",
    "                        YYPREFIX, YYFINAL, yychar, yys);",
    "            }",
    "#endif",
    "        }",
    "        if (yychar == 0) goto yyaccept;",
    "        goto yyloop;",
    "    }",
    "    if ((yyn = yygindex[yym]) && (yyn += yystate) >= 0 &&",
    "            yyn <= YYTABLESIZE && yycheck[yyn] == yystate)",
    "        yystate = yytable[yyn];",
    "    else",
    "        yystate = yydgoto[yym];",
    "#if YYDEBUG",
    "    if (yydebug)",
    "        printf(\"%sdebug: after reduction, shifting from state %d \\",
    "to state %d\\n\", YYPREFIX, *yyssp, yystate);",
    "#endif",
    "    if (yyssp >= yyss + yystacksize - 1)",
    "    {",
    "        goto yyoverflow;",
    "    }",
    "    *++yyssp = yystate;",
    "    *++yyvsp = yyval;",
    "    goto yyloop;",
    "yyoverflow:",
    "    yyerror(\"yacc stack overflow\");",
    "yyabort:",
    "    return (1);",
    "yyaccept:",
    "    return (0);",
    "}",
    0
};


void
write_section(char *section[])
{
    int c;
    int i;
    char *s;
    FILE *f;

    f = code_file;
    for (i = 0; (s = section[i]); ++i)
    {
        ++outline;
        while ((c = *s))
        {
            putc(c, f);
            ++s;
        }
        putc('\n', f);
    }
}