# line 2 "dex.y" /************************************************************************ * * * Copyright (c) 1982, Fred Fish * * All Rights Reserved * * * * This software and/or documentation is released for public * * distribution for personal, non-commercial use only. * * Limited rights to use, modify, and redistribute are hereby * * granted for non-commercial purposes, provided that all * * copyright notices remain intact and all changes are clearly * * documented. The author makes no warranty of any kind with * * respect to this product and explicitly disclaims any implied * * warranties of merchantability or fitness for any particular * * purpose. * * * ************************************************************************ */ # line 61 "dex.y" #include #define TRUE 1 #define FALSE 0 char savedtext[256]; /* Text for current line */ extern char *infile; /* Input file name if not stdin */ extern int linenum; /* Current input file line number */ extern FILE *infp; /* Input stream */ extern int debug; /* Debug variable */ # define BSTART 257 # define TEXT 258 # define JUNK 259 # define HSTART 260 # define FSTART 261 # define UFSTART 262 # define NEWLINE 263 #define yyclearin yychar = -1 #define yyerrok yyerrflag = 0 extern int yychar; extern int yyerrflag; #ifndef YYMAXDEPTH #define YYMAXDEPTH 150 #endif #ifndef YYSTYPE #define YYSTYPE int #endif YYSTYPE yylval, yyval; typedef int yytabelem; # define YYERRCODE 256 # line 154 "dex.y" #include "dex.lo" /* LEX output; renamed from lex.yy.c */ yywrap () /* Thought this was in library */ { return(1); } yyerror(sp) char *sp; { fprintf(stderr,"%s: ",infile); /* What file */ fprintf(stderr,"line %d: ",linenum); /* Where in file */ fprintf(stderr,"%s: ",sp); /* What was wrong */ fprintf(stderr,"%s\n",yytext); /* What it choked on */ } yytabelem yyexca[] ={ -1, 1, 0, -1, -2, 0, }; # define YYNPROD 18 # define YYLAST 31 yytabelem yyact[]={ 11, 14, 8, 10, 12, 13, 14, 18, 9, 17, 7, 2, 16, 15, 6, 5, 4, 3, 1, 0, 19, 0, 20, 21, 0, 0, 22, 0, 0, 23, 24 }; yytabelem yypact[]={ -257, -257, -1000, -262, -1000, -1000, -1000, -1000, -1000, -1000, -251, -262, -251, -251, -1000, -1000, -1000, -262, -1000, -1000, -262, -262, -1000, -1000, -1000 }; yytabelem yypgo[]={ 0, 18, 11, 17, 16, 15, 14, 10, 8, 9 }; yytabelem yyr1[]={ 0, 1, 1, 1, 2, 2, 2, 2, 2, 3, 3, 3, 4, 5, 6, 7, 8, 9 }; yytabelem yyr2[]={ 0, 3, 5, 1, 3, 3, 3, 3, 3, 3, 3, 5, 7, 5, 7, 7, 3, 3 }; yytabelem yychk[]={ -1000, -1, -2, -3, -4, -5, -6, -7, 259, -8, 260, 257, 261, 262, 263, -2, -8, -9, 258, -8, -9, -9, -8, -8, -8 }; yytabelem yydef[]={ 3, -2, 1, 4, 5, 6, 7, 8, 9, 10, 0, 0, 0, 0, 16, 2, 11, 0, 17, 13, 0, 0, 12, 14, 15 }; typedef struct { char *t_name; int t_val; } yytoktype; #ifndef YYDEBUG # define YYDEBUG 0 /* don't allow debugging */ #endif #if YYDEBUG yytoktype yytoks[] = { "BSTART", 257, "TEXT", 258, "JUNK", 259, "HSTART", 260, "FSTART", 261, "UFSTART", 262, "NEWLINE", 263, "-unknown-", -1 /* ends search */ }; char * yyreds[] = { "-no such reduction-", "file : line", "file : file line", "file : /* empty */", "line : junk", "line : id_line", "line : blank_line", "line : filled_line", "line : unfilled_line", "junk : JUNK", "junk : newline", "junk : junk newline", "id_line : HSTART text newline", "blank_line : BSTART newline", "filled_line : FSTART text newline", "unfilled_line : UFSTART text newline", "newline : NEWLINE", "text : TEXT", }; #endif /* YYDEBUG */ /* @(#)yaccpar 1.9 */ /* ** Skeleton parser driver for yacc output */ /* ** yacc user known macros and defines */ #define YYERROR goto yyerrlab #define YYACCEPT return(0) #define YYABORT return(1) #define YYBACKUP( newtoken, newvalue )\ {\ if ( yychar >= 0 || ( yyr2[ yytmp ] >> 1 ) != 1 )\ {\ yyerror( "syntax error - cannot backup" );\ goto yyerrlab;\ }\ yychar = newtoken;\ yystate = *yyps;\ yylval = newvalue;\ goto yynewstate;\ } #define YYRECOVERING() (!!yyerrflag) #ifndef YYDEBUG # define YYDEBUG 1 /* make debugging available */ #endif /* ** user known globals */ int yydebug; /* set to 1 to get debugging */ /* ** driver internal defines */ #define YYFLAG (-1000) /* ** global variables used by the parser */ YYSTYPE yyv[ YYMAXDEPTH ]; /* value stack */ int yys[ YYMAXDEPTH ]; /* state stack */ YYSTYPE *yypv; /* top of value stack */ int *yyps; /* top of state stack */ int yystate; /* current state */ int yytmp; /* extra var (lasts between blocks) */ int yynerrs; /* number of errors */ int yyerrflag; /* error recovery flag */ int yychar; /* current input token number */ /* ** yyparse - return 0 if worked, 1 if syntax error not recovered from */ int yyparse() { register YYSTYPE *yypvt; /* top of value stack for $vars */ /* ** Initialize externals - yyparse may be called more than once */ yypv = &yyv[-1]; yyps = &yys[-1]; yystate = 0; yytmp = 0; yynerrs = 0; yyerrflag = 0; yychar = -1; goto yystack; { register YYSTYPE *yy_pv; /* top of value stack */ register int *yy_ps; /* top of state stack */ register int yy_state; /* current state */ register int yy_n; /* internal state number info */ /* ** get globals into registers. ** branch to here only if YYBACKUP was called. */ yynewstate: yy_pv = yypv; yy_ps = yyps; yy_state = yystate; goto yy_newstate; /* ** get globals into registers. ** either we just started, or we just finished a reduction */ yystack: yy_pv = yypv; yy_ps = yyps; yy_state = yystate; /* ** top of for (;;) loop while no reductions done */ yy_stack: /* ** put a state and value onto the stacks */ #if YYDEBUG /* ** if debugging, look up token value in list of value vs. ** name pairs. 0 and negative (-1) are special values. ** Note: linear search is used since time is not a real ** consideration while debugging. */ if ( yydebug ) { register int yy_i; printf( "State %d, token ", yy_state ); if ( yychar == 0 ) printf( "end-of-file\n" ); else if ( yychar < 0 ) printf( "-none-\n" ); else { for ( yy_i = 0; yytoks[yy_i].t_val >= 0; yy_i++ ) { if ( yytoks[yy_i].t_val == yychar ) break; } printf( "%s\n", yytoks[yy_i].t_name ); } } #endif /* YYDEBUG */ if ( ++yy_ps >= &yys[ YYMAXDEPTH ] ) /* room on stack? */ { yyerror( "yacc stack overflow" ); YYABORT; } *yy_ps = yy_state; *++yy_pv = yyval; /* ** we have a new state - find out what to do */ yy_newstate: if ( ( yy_n = yypact[ yy_state ] ) <= YYFLAG ) goto yydefault; /* simple state */ #if YYDEBUG /* ** if debugging, need to mark whether new token grabbed */ yytmp = yychar < 0; #endif if ( ( yychar < 0 ) && ( ( yychar = yylex() ) < 0 ) ) yychar = 0; /* reached EOF */ #if YYDEBUG if ( yydebug && yytmp ) { register int yy_i; printf( "Received token " ); if ( yychar == 0 ) printf( "end-of-file\n" ); else if ( yychar < 0 ) printf( "-none-\n" ); else { for ( yy_i = 0; yytoks[yy_i].t_val >= 0; yy_i++ ) { if ( yytoks[yy_i].t_val == yychar ) break; } printf( "%s\n", yytoks[yy_i].t_name ); } } #endif /* YYDEBUG */ if ( ( ( yy_n += yychar ) < 0 ) || ( yy_n >= YYLAST ) ) goto yydefault; if ( yychk[ yy_n = yyact[ yy_n ] ] == yychar ) /*valid shift*/ { yychar = -1; yyval = yylval; yy_state = yy_n; if ( yyerrflag > 0 ) yyerrflag--; goto yy_stack; } yydefault: if ( ( yy_n = yydef[ yy_state ] ) == -2 ) { #if YYDEBUG yytmp = yychar < 0; #endif if ( ( yychar < 0 ) && ( ( yychar = yylex() ) < 0 ) ) yychar = 0; /* reached EOF */ #if YYDEBUG if ( yydebug && yytmp ) { register int yy_i; printf( "Received token " ); if ( yychar == 0 ) printf( "end-of-file\n" ); else if ( yychar < 0 ) printf( "-none-\n" ); else { for ( yy_i = 0; yytoks[yy_i].t_val >= 0; yy_i++ ) { if ( yytoks[yy_i].t_val == yychar ) { break; } } printf( "%s\n", yytoks[yy_i].t_name ); } } #endif /* YYDEBUG */ /* ** look through exception table */ { register int *yyxi = yyexca; while ( ( *yyxi != -1 ) || ( yyxi[1] != yy_state ) ) { yyxi += 2; } while ( ( *(yyxi += 2) >= 0 ) && ( *yyxi != yychar ) ) ; if ( ( yy_n = yyxi[1] ) < 0 ) YYACCEPT; } } /* ** check for syntax error */ if ( yy_n == 0 ) /* have an error */ { /* no worry about speed here! */ switch ( yyerrflag ) { case 0: /* new error */ yyerror( "syntax error" ); goto skip_init; yyerrlab: /* ** get globals into registers. ** we have a user generated syntax type error */ yy_pv = yypv; yy_ps = yyps; yy_state = yystate; yynerrs++; skip_init: case 1: case 2: /* incompletely recovered error */ /* try again... */ yyerrflag = 3; /* ** find state where "error" is a legal ** shift action */ while ( yy_ps >= yys ) { yy_n = yypact[ *yy_ps ] + YYERRCODE; if ( yy_n >= 0 && yy_n < YYLAST && yychk[yyact[yy_n]] == YYERRCODE) { /* ** simulate shift of "error" */ yy_state = yyact[ yy_n ]; goto yy_stack; } /* ** current state has no shift on ** "error", pop stack */ #if YYDEBUG # define _POP_ "Error recovery pops state %d, uncovers state %d\n" if ( yydebug ) printf( _POP_, *yy_ps, yy_ps[-1] ); # undef _POP_ #endif yy_ps--; yy_pv--; } /* ** there is no state on stack with "error" as ** a valid shift. give up. */ YYABORT; case 3: /* no shift yet; eat a token */ #if YYDEBUG /* ** if debugging, look up token in list of ** pairs. 0 and negative shouldn't occur, ** but since timing doesn't matter when ** debugging, it doesn't hurt to leave the ** tests here. */ if ( yydebug ) { register int yy_i; printf( "Error recovery discards " ); if ( yychar == 0 ) printf( "token end-of-file\n" ); else if ( yychar < 0 ) printf( "token -none-\n" ); else { for ( yy_i = 0; yytoks[yy_i].t_val >= 0; yy_i++ ) { if ( yytoks[yy_i].t_val == yychar ) { break; } } printf( "token %s\n", yytoks[yy_i].t_name ); } } #endif /* YYDEBUG */ if ( yychar == 0 ) /* reached EOF. quit */ YYABORT; yychar = -1; goto yy_newstate; } }/* end if ( yy_n == 0 ) */ /* ** reduction by production yy_n ** put stack tops, etc. so things right after switch */ #if YYDEBUG /* ** if debugging, print the string that is the user's ** specification of the reduction which is just about ** to be done. */ if ( yydebug ) printf( "Reduce by (%d) \"%s\"\n", yy_n, yyreds[ yy_n ] ); #endif yytmp = yy_n; /* value to switch over */ yypvt = yy_pv; /* $vars top of value stack */ /* ** Look in goto table for next state ** Sorry about using yy_state here as temporary ** register variable, but why not, if it works... ** If yyr2[ yy_n ] doesn't have the low order bit ** set, then there is no action to be done for ** this reduction. So, no saving & unsaving of ** registers done. The only difference between the ** code just after the if and the body of the if is ** the goto yy_stack in the body. This way the test ** can be made before the choice of what to do is needed. */ { /* length of production doubled with extra bit */ register int yy_len = yyr2[ yy_n ]; if ( !( yy_len & 01 ) ) { yy_len >>= 1; yyval = ( yy_pv -= yy_len )[1]; /* $$ = $1 */ yy_state = yypgo[ yy_n = yyr1[ yy_n ] ] + *( yy_ps -= yy_len ) + 1; if ( yy_state >= YYLAST || yychk[ yy_state = yyact[ yy_state ] ] != -yy_n ) { yy_state = yyact[ yypgo[ yy_n ] ]; } goto yy_stack; } yy_len >>= 1; yyval = ( yy_pv -= yy_len )[1]; /* $$ = $1 */ yy_state = yypgo[ yy_n = yyr1[ yy_n ] ] + *( yy_ps -= yy_len ) + 1; if ( yy_state >= YYLAST || yychk[ yy_state = yyact[ yy_state ] ] != -yy_n ) { yy_state = yyact[ yypgo[ yy_n ] ]; } } /* save until reenter driver code */ yystate = yy_state; yyps = yy_ps; yypv = yy_pv; } /* ** code supplied by user is placed in this switch */ switch( yytmp ) { case 1: # line 80 "dex.y" {if(debug){printf("yyparse: file\n");}} break; case 2: # line 82 "dex.y" {if(debug){printf("yyparse: file\n");}} break; case 3: # line 84 "dex.y" {if(debug){printf("yyparse: file\n");}} break; case 4: # line 88 "dex.y" { if(debug){printf("yyparse: line\n");} reset_section(); } break; case 5: # line 93 "dex.y" {if(debug){printf("yyparse: line\n");}} break; case 6: # line 95 "dex.y" {if(debug){printf("yyparse: line\n");}} break; case 7: # line 97 "dex.y" {if(debug){printf("yyparse: line\n");}} break; case 8: # line 99 "dex.y" {if(debug){printf("yyparse: line\n");}} break; case 9: # line 103 "dex.y" {if(debug){printf("yyparse: junk\n");}} break; case 10: # line 105 "dex.y" {if(debug){printf("yyparse: junk\n");}} break; case 11: # line 107 "dex.y" {if(debug){printf("yyparse: junk\n");}} break; case 12: # line 111 "dex.y" { {if(debug){printf("yyparse: id_line\n");}} set_section(savedtext); } break; case 13: # line 119 "dex.y" { {if(debug){printf("yyparse: blank_line\n");}} emit_bline(); } break; case 14: # line 126 "dex.y" { {if(debug){printf("yyparse: filled_line\n");}} emit_filled(savedtext); } break; case 15: # line 133 "dex.y" { {if(debug){printf("yyparse: unfilled_line\n");}} emit_unfilled(savedtext); } break; case 16: # line 141 "dex.y" { {if(debug){printf("yyparse: newline\n");}} linenum++; } break; case 17: # line 148 "dex.y" { {if(debug){printf("yyparse: text\n");}} strcpy(savedtext,yytext); } break; } goto yystack; /* reset registers in driver code */ }