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-
- /* 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 */
-