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290_01
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parse.c
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C/C++ Source or Header
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1990-05-14
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1,096 lines
/* A Bison parser, made from parse.y */
#define CHAR 258
#define NUMBER 259
#define SECTEND 260
#define SCDECL 261
#define XSCDECL 262
#define WHITESPACE 263
#define NAME 264
#define PREVCCL 265
#include "flexdef.h"
#include "ecs.h" /* RA.1989.12.30 */
#include "nfa.h" /* RA.1989.12.30 */
#include "sym.h" /* RA.1989.12.30 */
#include "ccl.h" /* RA.1989.12.30 */
#include "misc.h" /* RA.1989.12.30 */
int pat, scnum, eps,
headcnt, trailcnt, anyccl,
lastchar, i, actvp, rulelen;
int trlcontxt, xcluflg,
cclsorted, varlength;
static int madeany = false; /* whether we've made the '.' character class */
#ifndef YYLTYPE
typedef
struct yyltype
{
int timestamp;
int first_line;
int first_column;
int last_line;
int last_column;
char *text;
}
yyltype;
#define YYLTYPE yyltype
#endif
#define YYACCEPT return(0)
#define YYABORT return(1)
#define YYERROR goto yyerrlab
#ifndef YYSTYPE
#define YYSTYPE int
#endif
#include <stdio.h>
#ifndef __STDC__
#define const
#endif
#define YYFINAL 81
#define YYFLAG -32767
#define YYNTBASE 31
#define YYTRANSLATE(x) ((unsigned)(x) <= 265 ? yytranslate[x] : 50)
static const char yytranslate[] = { 0,
2, 2, 2, 2, 2, 2, 2, 2, 2, 11,
2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
2, 2, 2, 25, 2, 16, 2, 2, 2, 26,
27, 19, 20, 15, 30, 24, 18, 2, 2, 2,
2, 2, 2, 2, 2, 2, 2, 2, 2, 13,
2, 14, 21, 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,
28, 2, 29, 12, 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, 22, 17, 23, 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, 2, 1, 2, 3, 4, 5,
6, 7, 8, 9, 10
};
static const short yyrline[] = { 0,
46, 65, 74, 75, 76, 80, 83, 93, 97, 100,
103, 107, 108, 111, 119, 128, 137, 151, 161, 165,
168, 177, 185, 189, 211, 227, 234, 237, 242, 265,
273, 277, 284, 291, 298, 311, 325, 343, 365, 382,
389, 392, 395, 409, 412, 426, 454, 466, 474, 485
};
static const char * const yytname[] = { 0,
"error","$illegal.","CHAR","NUMBER","SECTEND","SCDECL","XSCDECL","WHITESPACE","NAME","PREVCCL",
"'\\n'","'^'","'<'","'>'","','","'$'","'|'","'/'","'*'","'+'",
"'?'","'{'","'}'","'.'","'\"'","'('","')'","'['","']'","'-'",
"goal"
};
static const short yyr1[] = { 0,
31, 32, 33, 33, 33, 34, 35, 35, 36, 36,
36, 37, 37, 38, 39, 39, 39, 39, 39, 40,
41, 41, 41, 42, 42, 43, 43, 43, 44, 45,
45, 46, 46, 46, 46, 46, 46, 46, 46, 46,
46, 46, 46, 47, 47, 48, 48, 48, 49, 49
};
static const short yyr2[] = { 0,
4, 0, 5, 0, 2, 1, 1, 1, 3, 1,
1, 4, 0, 0, 4, 3, 3, 2, 1, 3,
3, 1, 1, 1, 0, 3, 2, 1, 2, 2,
1, 2, 2, 2, 6, 5, 4, 1, 1, 1,
3, 3, 1, 3, 4, 4, 2, 0, 2, 0
};
static const short yydefact[] = { 2,
0, 0, 0, 5, 6, 7, 8, 13, 0, 14,
0, 0, 11, 10, 0, 19, 43, 40, 0, 0,
38, 50, 0, 48, 0, 0, 25, 0, 28, 31,
39, 0, 3, 25, 23, 22, 0, 0, 0, 48,
0, 12, 0, 25, 24, 0, 29, 18, 27, 30,
32, 33, 34, 0, 9, 17, 20, 0, 49, 41,
42, 0, 47, 44, 25, 16, 26, 0, 21, 45,
0, 15, 0, 37, 46, 0, 36, 35, 0, 0,
0
};
static const short yydefgoto[] = { 79,
1, 3, 8, 9, 15, 10, 12, 25, 26, 37,
48, 27, 28, 29, 30, 31, 41, 38
};
static const short yypact[] = {-32767,
61, -5, 43,-32767,-32767,-32767,-32767,-32767, 8, 9,
1, 2,-32767,-32767, 28,-32767,-32767,-32767, 32, 45,
-32767,-32767, 32, 13, 42, 19, 57, 32, 32, 50,
-32767, 55,-32767, 57,-32767,-32767, 62, 15, 34,-32767,
4,-32767, 32, 57,-32767, 32,-32767,-32767, 32, 50,
-32767,-32767,-32767, 74,-32767,-32767,-32767, 56,-32767,-32767,
-32767, 5, -17,-32767, 57,-32767, 32, 40,-32767,-32767,
76,-32767, 0,-32767,-32767, 36,-32767,-32767, 80, 81,
-32767
};
static const short yypgoto[] = {-32767,
-32767,-32767,-32767,-32767,-32767,-32767,-32767,-32767,-32767,-32767,
-33, -2,-32767, -9, -29,-32767, 44,-32767
};
#define YYLAST 84
static const short yytable[] = { 50,
56, 13, 16, 76, 17, 4, 63, 63, -1, 14,
66, 18, 71, 19, 20, 11, 34, 59, 49, 50,
39, 17, 77, 44, 40, 21, 22, 23, 18, 24,
43, 72, 64, 70, 17, 32, 67, 50, 33, 60,
65, 18, 21, 22, 23, 35, 24, 5, 6, 7,
46, 47, 42, 36, 73, 21, 22, 23, 78, 24,
61, 2, 74, 55, 69, -4, -4, -4, 51, 52,
53, 54, 45, 46, 47, 57, 58, 68, 75, 80,
81, 0, 0, 62
};
static const short yycheck[] = { 29,
34, 1, 1, 4, 3, 11, 3, 3, 0, 9,
44, 10, 30, 12, 13, 8, 19, 3, 28, 49,
23, 3, 23, 26, 12, 24, 25, 26, 10, 28,
12, 65, 29, 29, 3, 8, 46, 67, 11, 25,
43, 10, 24, 25, 26, 1, 28, 5, 6, 7,
17, 18, 11, 9, 15, 24, 25, 26, 23, 28,
27, 1, 23, 9, 9, 5, 6, 7, 19, 20,
21, 22, 16, 17, 18, 14, 15, 4, 3, 0,
0, -1, -1, 40
};
#define YYPURE 1
/* Skeleton output parser for bison,
copyright (C) 1984 Bob Corbett and Richard Stallman
/* 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
as one case of the switch. */
#define yyerrok (yyerrstatus = 0)
#define yyclearin (yychar = YYEMPTY)
#define YYEMPTY -2
#define YYEOF 0
#define YYFAIL goto yyerrlab;
#define YYTERROR 1
#ifndef YYIMPURE
extern int yylex( void) ;
#define YYLEX yylex()
#endif
#ifndef YYPURE
extern int yylex( YYLTYPE *, YYLTYPE *) ;
#define YYLEX yylex(&yylval, &yylloc)
#endif
/* If nonreentrant, generate the variables here */
#ifndef YYIMPURE
int yychar; /* the lookahead symbol */
YYSTYPE yylval; /* the semantic value of the */
/* lookahead symbol */
YYLTYPE yylloc; /* location data for the lookahead */
/* symbol */
int yynerr; /* number of parse errors so far */
#ifdef YYDEBUG
int yydebug = 0; /* nonzero means print parse trace */
#endif
#endif /* YYIMPURE */
/* YYMAXDEPTH indicates the initial size of the parser's stacks */
#ifndef YYMAXDEPTH
#define YYMAXDEPTH 200
#endif
/* YYMAXLIMIT is the maximum size the stacks can grow to
(effective only if the built-in stack extension method is used). */
#ifndef YYMAXLIMIT
#define YYMAXLIMIT 10000
#endif
int
yyparse()
{
register int yystate;
register int yyn;
register short *yyssp;
register YYSTYPE *yyvsp;
YYLTYPE *yylsp;
int yyerrstatus; /* number of tokens to shift before error messages enabled */
int yychar1; /* lookahead token as an internal (translated) token number */
short yyssa[YYMAXDEPTH]; /* the state stack */
YYSTYPE yyvsa[YYMAXDEPTH]; /* the semantic value stack */
YYLTYPE yylsa[YYMAXDEPTH]; /* the location stack */
short *yyss = yyssa; /* refer to the stacks thru separate pointers */
YYSTYPE *yyvs = yyvsa; /* to allow yyoverflow to reallocate them elsewhere */
YYLTYPE *yyls = yylsa;
int yymaxdepth = YYMAXDEPTH;
#ifndef YYPURE
int yychar;
YYSTYPE yylval;
YYLTYPE yylloc;
#endif
#ifdef YYDEBUG
extern int yydebug;
#endif
YYSTYPE yyval; /* the variable used to return */
/* semantic values from the action */
/* routines */
int yylen;
#ifdef YYDEBUG
if (yydebug)
fprintf(stderr, "Starting parse\n");
#endif
yystate = 0;
yyerrstatus = 0;
yynerr = 0;
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. */
yyssp = yyss - 1;
yyvsp = yyvs;
yylsp = yyls;
/* Push a new state, which is found in yystate . */
/* In all cases, when you get here, the value and location stacks
have just been pushed. so pushing a state here evens the stacks. */
yynewstate:
*++yyssp = yystate;
if (yyssp >= yyss + yymaxdepth - 1)
{
/* Give user a chance to reallocate the stack */
/* Use copies of these so that the &'s don't force the real ones into memory. */
YYSTYPE *yyvs1 = yyvs;
YYLTYPE *yyls1 = yyls;
short *yyss1 = yyss;
/* Get the current used size of the three stacks, in elements. */
int size = yyssp - yyss + 1;
#ifdef yyoverflow
/* Each stack pointer address is followed by the size of
the data in use in that stack, in bytes. */
yyoverflow("parser stack overflow",
&yyss1, size * sizeof (*yyssp),
&yyvs1, size * sizeof (*yyvsp),
&yyls1, size * sizeof (*yylsp),
&yymaxdepth);
yyss = yyss1; yyvs = yyvs1; yyls = yyls1;
#else /* no yyoverflow */
/* Extend the stack our own way. */
if (yymaxdepth >= YYMAXLIMIT)
yyerror("parser stack overflow");
yymaxdepth *= 2;
if (yymaxdepth > YYMAXLIMIT)
yymaxdepth = YYMAXLIMIT;
yyss = (short *) malloc (yymaxdepth * sizeof (*yyssp));
memcpy ((char *)yyss, (char *)yyss1, size * sizeof (*yyssp));
yyvs = (YYSTYPE *) malloc (yymaxdepth * sizeof (*yyvsp));
memcpy ((char *)yyvs, (char *)yyvs1, size * sizeof (*yyvsp));
#ifdef YYLSP_NEEDED
yyls = (YYLTYPE *) malloc (yymaxdepth * sizeof (*yylsp));
memcpy ((char *)yyls, (char *)yyls1, size * sizeof (*yylsp));
#endif
#endif /* no yyoverflow */
yyssp = yyss + size - 1;
yyvsp = yyvs + size - 1;
#ifdef YYLSP_NEEDED
yylsp = yyls + size - 1;
#endif
#ifdef YYDEBUG
if (yydebug)
fprintf(stderr, "Stack size increased to %d\n", yymaxdepth);
#endif
if (yyssp >= yyss + yymaxdepth - 1)
YYABORT;
}
#ifdef YYDEBUG
if (yydebug)
fprintf(stderr, "Entering state %d\n", yystate);
#endif
/* Do appropriate processing given the current state. */
/* Read a lookahead token if we need one and don't already have one. */
yyresume:
/* First try to decide what to do without reference to lookahead token. */
yyn = yypact[yystate];
if (yyn == YYFLAG)
goto yydefault;
/* Not known => get a lookahead token if don't already have one. */
/* yychar is either YYEMPTY or YYEOF
or a valid token in external form. */
if (yychar == YYEMPTY)
{
#ifdef YYDEBUG
if (yydebug)
fprintf(stderr, "Reading a token: ");
#endif
yychar = YYLEX;
}
/* Convert token to internal form (in yychar1) for indexing tables with */
if (yychar <= 0) /* This means end of input. */
{
yychar1 = 0;
yychar = YYEOF; /* Don't call YYLEX any more */
#ifdef YYDEBUG
if (yydebug)
fprintf(stderr, "Now at end of input.\n");
#endif
}
else
{
yychar1 = YYTRANSLATE(yychar);
#ifdef YYDEBUG
if (yydebug)
fprintf(stderr, "Next token is %d (%s)\n", yychar, yytname[yychar1]);
#endif
}
yyn += yychar1;
if (yyn < 0 || yyn > YYLAST || yycheck[yyn] != yychar1)
goto yydefault;
yyn = yytable[yyn];
/* yyn is what to do for this token type in this state.
Negative => reduce, -yyn is rule number.
Positive => shift, yyn is new state.
New state is final state => don't bother to shift,
just return success.
0, or most negative number => error. */
if (yyn < 0)
{
if (yyn == YYFLAG)
goto yyerrlab;
yyn = -yyn;
goto yyreduce;
}
else if (yyn == 0)
goto yyerrlab;
if (yyn == YYFINAL)
YYACCEPT;
/* Shift the lookahead token. */
#ifdef YYDEBUG
if (yydebug)
fprintf(stderr, "Shifting token %d (%s), ", yychar, yytname[yychar1]);
#endif
/* Discard the token being shifted unless it is eof. */
if (yychar != YYEOF)
yychar = YYEMPTY;
*++yyvsp = yylval;
#ifdef YYLSP_NEEDED
*++yylsp = yylloc;
#endif
/* count tokens shifted since error; after three, turn off error status. */
if (yyerrstatus) yyerrstatus--;
yystate = yyn;
goto yynewstate;
/* Do the default action for the current state. */
yydefault:
yyn = yydefact[yystate];
if (yyn == 0)
goto yyerrlab;
/* Do a reduction. yyn is the number of a rule to reduce with. */
yyreduce:
yylen = yyr2[yyn];
yyval = yyvsp[1-yylen]; /* implement default value of the action */
#ifdef YYDEBUG
if (yydebug)
{
if (yylen == 1)
fprintf (stderr, "Reducing 1 value via line %d, ",
yyrline[yyn]);
else
fprintf (stderr, "Reducing %d values via line %d, ",
yylen, yyrline[yyn]);
}
#endif
/* the action file gets copied in in place of this dollarsign */
switch (yyn) {
case 1:
{ /* add default rule */
int def_rule;
pat = cclinit();
cclnegate( pat );
def_rule = mkstate( -pat );
add_accept( def_rule, 0, 0 );
for ( i = 1; i <= lastsc; ++i )
scset[i] = mkbranch( scset[i], def_rule );
fputs( "YY_DEFAULT_ACTION;\n\tYY_BREAK\n",
temp_action_file );
;
break;}
case 2:
{
/* initialize for processing rules */
/* create default DFA start condition */
scinstal( "INITIAL", false );
;
break;}
case 5:
{ synerr( "unknown error processing section 1" ); ;
break;}
case 7:
{
/* these productions are separate from the s1object
* rule because the semantics must be done before
* we parse the remainder of an s1object
*/
xcluflg = false;
;
break;}
case 8:
{ xcluflg = true; ;
break;}
case 9:
{ scinstal( nmstr, xcluflg ); ;
break;}
case 10:
{ scinstal( nmstr, xcluflg ); ;
break;}
case 11:
{ synerr( "bad start condition list" ); ;
break;}
case 14:
{
/* initialize for a parse of one rule */
trlcontxt = varlength = false;
trailcnt = headcnt = rulelen = 0;
;
break;}
case 15:
{
pat = link_machines( yyvsp[-1], yyvsp[0] );
add_accept( pat, headcnt, trailcnt );
for ( i = 1; i <= actvp; ++i )
scbol[actvsc[i]] = mkbranch( scbol[actvsc[i]], pat );
;
break;}
case 16:
{
pat = link_machines( yyvsp[-1], yyvsp[0] );
add_accept( pat, headcnt, trailcnt );
for ( i = 1; i <= actvp; ++i )
scset[actvsc[i]] = mkbranch( scset[actvsc[i]], pat );
;
break;}
case 17:
{
pat = link_machines( yyvsp[-1], yyvsp[0] );
add_accept( pat, headcnt, trailcnt );
/* add to all non-exclusive start conditions,
* including the default (0) start condition
*/
for ( i = 1; i <= lastsc; ++i )
if ( ! scxclu[i] )
scbol[i] = mkbranch( scbol[i], pat );
;
break;}
case 18:
{
pat = link_machines( yyvsp[-1], yyvsp[0] );
add_accept( pat, headcnt, trailcnt );
for ( i = 1; i <= lastsc; ++i )
if ( ! scxclu[i] )
scset[i] = mkbranch( scset[i], pat );
;
break;}
case 19:
{ synerr( "unrecognized rule" ); ;
break;}
case 21:
{
if ( (scnum = sclookup( nmstr )) == 0 )
synerr( "undeclared start condition" );
else
actvsc[++actvp] = scnum;
;
break;}
case 22:
{
if ( (scnum = sclookup( nmstr )) == 0 )
synerr( "undeclared start condition" );
else
actvsc[actvp = 1] = scnum;
;
break;}
case 23:
{ synerr( "bad start condition list" ); ;
break;}
case 24:
{
if ( trlcontxt )
{
synerr( "trailing context used twice" );
yyval = mkstate( SYM_EPSILON );
}
else
{
trlcontxt = true;
if ( ! varlength )
headcnt = rulelen;
++rulelen;
trailcnt = 1;
eps = mkstate( SYM_EPSILON );
yyval = link_machines( eps, mkstate( '\n' ) );
}
;
break;}
case 25:
{
yyval = mkstate( SYM_EPSILON );
if ( trlcontxt )
{
if ( varlength && headcnt == 0 )
/* both head and trail are variable-length */
synerr( "illegal trailing context" );
else
trailcnt = rulelen;
}
;
break;}
case 26:
{
varlength = true;
yyval = mkor( yyvsp[-2], yyvsp[0] );
;
break;}
case 27:
{ yyval = link_machines( yyvsp[-1], yyvsp[0] ); ;
break;}
case 28:
{ yyval = yyvsp[0]; ;
break;}
case 29:
{
/* this rule is separate from the others for "re" so
* that the reduction will occur before the trailing
* series is parsed
*/
if ( trlcontxt )
synerr( "trailing context used twice" );
else
trlcontxt = true;
if ( varlength )
/* the trailing context had better be fixed-length */
varlength = false;
else
headcnt = rulelen;
rulelen = 0;
yyval = yyvsp[-1];
;
break;}
case 30:
{
/* this is where concatenation of adjacent patterns
* gets done
*/
yyval = link_machines( yyvsp[-1], yyvsp[0] );
;
break;}
case 31:
{ yyval = yyvsp[0]; ;
break;}
case 32:
{
varlength = true;
yyval = mkclos( yyvsp[-1] );
;
break;}
case 33:
{
varlength = true;
yyval = mkposcl( yyvsp[-1] );
;
break;}
case 34:
{
varlength = true;
yyval = mkopt( yyvsp[-1] );
;
break;}
case 35:
{
varlength = true;
if ( yyvsp[-3] > yyvsp[-1] || yyvsp[-3] <= 0 )
{
synerr( "bad iteration values" );
yyval = yyvsp[-5];
}
else
yyval = mkrep( yyvsp[-5], yyvsp[-3], yyvsp[-1] );
;
break;}
case 36:
{
varlength = true;
if ( yyvsp[-2] <= 0 )
{
synerr( "iteration value must be positive" );
yyval = yyvsp[-4];
}
else
yyval = mkrep( yyvsp[-4], yyvsp[-2], INFINITY );
;
break;}
case 37:
{
/* the singleton could be something like "(foo)",
* in which case we have no idea what its length
* is, so we punt here.
*/
varlength = true;
if ( yyvsp[-1] <= 0 )
{
synerr( "iteration value must be positive" );
yyval = yyvsp[-3];
}
else
yyval = link_machines( yyvsp[-3], copysingl( yyvsp[-3], yyvsp[-1] - 1 ) );
;
break;}
case 38:
{
if ( ! madeany )
{
/* create the '.' character class */
anyccl = cclinit();
ccladd( anyccl, '\n' );
cclnegate( anyccl );
if ( useecs )
mkeccl( ccltbl + cclmap[anyccl],
ccllen[anyccl], nextecm,
ecgroup, CSIZE );
madeany = true;
}
++rulelen;
yyval = mkstate( -anyccl );
;
break;}
case 39:
{
if ( ! cclsorted )
/* sort characters for fast searching. We use a
* shell sort since this list could be large.
*/
cshell( ccltbl + cclmap[yyvsp[0]], ccllen[yyvsp[0]] );
if ( useecs )
mkeccl( ccltbl + cclmap[yyvsp[0]], ccllen[yyvsp[0]],
nextecm, ecgroup, CSIZE );
++rulelen;
yyval = mkstate( -yyvsp[0] );
;
break;}
case 40:
{
++rulelen;
yyval = mkstate( -yyvsp[0] );
;
break;}
case 41:
{ yyval = yyvsp[-1]; ;
break;}
case 42:
{ yyval = yyvsp[-1]; ;
break;}
case 43:
{
++rulelen;
if ( yyvsp[0] == '\0' )
synerr( "null in rule" );
if ( caseins && yyvsp[0] >= 'A' && yyvsp[0] <= 'Z' )
yyvsp[0] = clower( yyvsp[0] );
yyval = mkstate( yyvsp[0] );
;
break;}
case 44:
{ yyval = yyvsp[-1]; ;
break;}
case 45:
{
/* *Sigh* - to be compatible Unix lex, negated ccls
* match newlines
*/
#ifdef NOTDEF
ccladd( yyvsp[-1], '\n' ); /* negated ccls don't match '\n' */
cclsorted = false; /* because we added the newline */
#endif
cclnegate( yyvsp[-1] );
yyval = yyvsp[-1];
;
break;}
case 46:
{
if ( yyvsp[-2] > yyvsp[0] )
synerr( "negative range in character class" );
else
{
if ( caseins )
{
if ( yyvsp[-2] >= 'A' && yyvsp[-2] <= 'Z' )
yyvsp[-2] = clower( yyvsp[-2] );
if ( yyvsp[0] >= 'A' && yyvsp[0] <= 'Z' )
yyvsp[0] = clower( yyvsp[0] );
}
for ( i = yyvsp[-2]; i <= yyvsp[0]; ++i )
ccladd( yyvsp[-3], i );
/* keep track if this ccl is staying in alphabetical
* order
*/
cclsorted = cclsorted && (yyvsp[-2] > lastchar);
lastchar = yyvsp[0];
}
yyval = yyvsp[-3];
;
break;}
case 47:
{
if ( caseins )
if ( yyvsp[0] >= 'A' && yyvsp[0] <= 'Z' )
yyvsp[0] = clower( yyvsp[0] );
ccladd( yyvsp[-1], yyvsp[0] );
cclsorted = cclsorted && (yyvsp[0] > lastchar);
lastchar = yyvsp[0];
yyval = yyvsp[-1];
;
break;}
case 48:
{
cclsorted = true;
lastchar = 0;
yyval = cclinit();
;
break;}
case 49:
{
if ( caseins )
if ( yyvsp[0] >= 'A' && yyvsp[0] <= 'Z' )
yyvsp[0] = clower( yyvsp[0] );
++rulelen;
yyval = link_machines( yyvsp[-1], mkstate( yyvsp[0] ) );
;
break;}
case 50:
{ yyval = mkstate( SYM_EPSILON ); ;
break;}
}
yyvsp -= yylen;
yyssp -= yylen;
#ifdef YYLSP_NEEDED
yylsp -= yylen;
#endif
#ifdef YYDEBUG
if (yydebug)
{
short *ssp1 = yyss - 1;
fprintf (stderr, "state stack now");
while (ssp1 != yyssp)
fprintf (stderr, " %d", *++ssp1);
fprintf (stderr, "\n");
}
#endif
*++yyvsp = yyval;
#ifdef YYLSP_NEEDED
yylsp++;
if (yylen == 0)
{
yylsp->first_line = yylloc.first_line;
yylsp->first_column = yylloc.first_column;
yylsp->last_line = (yylsp-1)->last_line;
yylsp->last_column = (yylsp-1)->last_column;
yylsp->text = 0;
}
else
{
yylsp->last_line = (yylsp+yylen-1)->last_line;
yylsp->last_column = (yylsp+yylen-1)->last_column;
}
#endif
/* 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. */
yyn = yyr1[yyn];
yystate = yypgoto[yyn - YYNTBASE] + *yyssp;
if (yystate >= 0 && yystate <= YYLAST && yycheck[yystate] == *yyssp)
yystate = yytable[yystate];
else
yystate = yydefgoto[yyn - YYNTBASE];
goto yynewstate;
yyerrlab: /* here on detecting error */
if (! yyerrstatus)
/* If not already recovering from an error, report this error. */
{
++yynerr;
yyerror("parse error");
}
if (yyerrstatus == 3)
{
/* if just tried and failed to reuse lookahead token after an error, discard it. */
/* return failure if at end of input */
if (yychar == YYEOF)
YYABORT;
#ifdef YYDEBUG
if (yydebug)
fprintf(stderr, "Discarding token %d (%s).\n", yychar, yytname[yychar1]);
#endif
yychar = YYEMPTY;
}
/* Else will try to reuse lookahead token
after shifting the error token. */
yyerrstatus = 3; /* Each real token shifted decrements this */
goto yyerrhandle;
yyerrdefault: /* current state does not do anything special for the error token. */
#if 0
/* This is wrong; only states that explicitly want error tokens
should shift them. */
yyn = yydefact[yystate]; /* If its default is to accept any token, ok. Otherwise pop it.*/
if (yyn) goto yydefault;
#endif
yyerrpop: /* pop the current state because it cannot handle the error token */
if (yyssp == yyss) YYABORT;
yyvsp--;
yystate = *--yyssp;
#ifdef YYLSP_NEEDED
yylsp--;
#endif
#ifdef YYDEBUG
if (yydebug)
{
short *ssp1 = yyss - 1;
fprintf (stderr, "Error: state stack now");
while (ssp1 != yyssp)
fprintf (stderr, " %d", *++ssp1);
fprintf (stderr, "\n");
}
#endif
yyerrhandle:
yyn = yypact[yystate];
if (yyn == YYFLAG)
goto yyerrdefault;
yyn += YYTERROR;
if (yyn < 0 || yyn > YYLAST || yycheck[yyn] != YYTERROR)
goto yyerrdefault;
yyn = yytable[yyn];
if (yyn < 0)
{
if (yyn == YYFLAG)
goto yyerrpop;
yyn = -yyn;
goto yyreduce;
}
else if (yyn == 0)
goto yyerrpop;
if (yyn == YYFINAL)
YYACCEPT;
#ifdef YYDEBUG
if (yydebug)
fprintf(stderr, "Shifting error token, ");
#endif
*++yyvsp = yylval;
#ifdef YYLSP_NEEDED
*++yylsp = yylloc;
#endif
yystate = yyn;
goto yynewstate;
}
/*
** function: synerr
** purpose: Report a syntax error
** mods: 1989.12.30 - Roberto Artigas Jr
** Changed return type to void
*/
void
synerr( str )
char str[]; /* Error message */
{
syntaxerror = true; /* We have an error! */
fprintf(stderr, /* Error file */
"Syntax error at line %d: %s\n", /* Message text */
linenum, /* Line number */
str); /* Error message */
}; /* synerr */
/*
** function: yyerror
** purpose: Eat up an error message from the parser
** mods: 1989.12.30 - Roberto Artigas Jr
** Changed return type to void
*/
void
yyerror( msg )
char msg[]; /* Error message */
{
}; /* yyerror */