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lex.yy
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1992-08-09
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10KB
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513 lines
# include "stdio.h"
# define U(x) x
# define NLSTATE yyprevious=YYNEWLINE
# define BEGIN yybgin = yysvec + 1 +
# define INITIAL 0
# define YYLERR yysvec
# define YYSTATE (yyestate-yysvec-1)
# define YYOPTIM 1
# define YYLMAX BUFSIZ
# define output(c) putc(c,yyout)
# define input() (((yytchar=yysptr>yysbuf?U(*--yysptr):getc(yyin))==10?(yylineno++,yytchar):yytchar)==EOF?0:yytchar)
# define unput(c) {yytchar= (c);if(yytchar=='\n')yylineno--;*yysptr++=yytchar;}
# define yymore() (yymorfg=1)
# define ECHO fprintf(yyout, "%s",yytext)
# define REJECT { nstr = yyreject(); goto yyfussy;}
int yyleng; extern char yytext[];
int yymorfg;
extern char *yysptr, yysbuf[];
int yytchar;
FILE *yyin = {stdin}, *yyout = {stdout};
extern int yylineno;
struct yysvf {
struct yywork *yystoff;
struct yysvf *yyother;
int *yystops;};
struct yysvf *yyestate;
extern struct yysvf yysvec[], *yybgin;
# define COMMENT 2
# define YYNEWLINE 10
yylex(){
int nstr; extern int yyprevious;
while((nstr = yylook()) >= 0)
yyfussy: switch(nstr){
case 0:
if(yywrap()) return(0); break;
case 1:
{
BEGIN COMMENT; }
break;
case 2:
{
BEGIN INITIAL; }
break;
case 3:
{
}
break;
case 4:
{
}
break;
case 5:
{
}
break;
case 6:
{
return(COMMA);
}
break;
case 7:
{
sscanf(yytext,"%lf",&f);
return(CONS);
}
break;
case 8:
{ Sign=0;
for(x=0;x<yyleng;x++)
if(yytext[x]=='-'||yytext[x]=='+')
Sign=(Sign==(yytext[x]=='+'));
return (SIGN);
/* Sign is TRUE if the sign-string
represents a '-'. Otherwise Sign
is FALSE */
}
break;
case 9:
{
{strcpy(Last_var, yytext);}
return(VAR);
}
break;
case 10:
{
return(AR_M_OP); }
break;
case 11:
{
return(RE_OP); }
break;
case 12:
{
return(END_C); }
break;
case 13:
{
fprintf(stderr,"LEX ERROR : %s lineno %d \n" ,yytext,yylineno); }
break;
case -1:
break;
default:
fprintf(yyout,"bad switch yylook %d",nstr);
} return(0); }
/* end of yylex */
int yyvstop[] = {
0,
11,
0,
11,
0,
11,
0,
11,
0,
13,
0,
5,
8,
13,
0,
5,
8,
0,
10,
13,
0,
8,
13,
0,
6,
13,
0,
13,
0,
13,
0,
7,
13,
0,
12,
13,
0,
11,
13,
0,
11,
13,
0,
9,
13,
0,
3,
0,
4,
0,
3,
0,
8,
0,
7,
0,
1,
0,
7,
0,
11,
0,
9,
0,
9,
0,
2,
0,
7,
0,
0};
# define YYTYPE char
struct yywork { YYTYPE verify, advance; } yycrank[] = {
0,0, 0,0, 1,5, 0,0,
0,0, 0,0, 0,0, 0,0,
0,0, 0,0, 1,6, 1,7,
9,21, 9,21, 21,21, 21,21,
3,18, 6,7, 6,7, 0,0,
0,0, 0,0, 0,0, 0,0,
3,18, 3,19, 0,0, 0,0,
0,0, 0,0, 0,0, 0,0,
0,0, 0,0, 0,0, 9,21,
0,0, 21,21, 0,0, 0,0,
6,7, 0,0, 0,0, 1,8,
1,9, 1,10, 4,20, 1,11,
1,12, 1,13, 2,8, 6,21,
2,10, 6,21, 2,11, 2,12,
12,23, 3,20, 3,18, 20,30,
1,14, 1,15, 1,16, 3,18,
15,27, 0,0, 1,17, 2,14,
0,0, 2,16, 1,17, 0,0,
0,0, 0,0, 0,0, 3,18,
22,26, 0,0, 0,0, 0,0,
3,18, 0,0, 0,0, 0,0,
3,18, 11,22, 11,22, 11,22,
11,22, 11,22, 11,22, 11,22,
11,22, 11,22, 11,22, 13,24,
1,5, 13,25, 13,25, 13,25,
13,25, 13,25, 13,25, 13,25,
13,25, 13,25, 13,25, 0,0,
22,26, 0,0, 3,18, 0,0,
0,0, 0,0, 0,0, 0,0,
0,0, 0,0, 13,26, 0,0,
0,0, 0,0, 0,0, 0,0,
0,0, 17,28, 0,0, 0,0,
0,0, 0,0, 0,0, 0,0,
0,0, 0,0, 17,29, 17,29,
17,29, 17,29, 17,29, 17,29,
17,29, 17,29, 17,29, 17,29,
0,0, 0,0, 0,0, 0,0,
0,0, 0,0, 13,26, 17,29,
17,29, 17,29, 17,29, 17,29,
17,29, 17,29, 17,29, 17,29,
17,29, 17,29, 17,29, 17,29,
17,29, 17,29, 17,29, 17,29,
17,29, 17,29, 17,29, 17,29,
17,29, 17,29, 17,29, 17,29,
17,29, 0,0, 0,0, 0,0,
0,0, 17,29, 0,0, 17,29,
17,29, 17,29, 17,29, 17,29,
17,29, 17,29, 17,29, 17,29,
17,29, 17,29, 17,29, 17,29,
17,29, 17,29, 17,29, 17,29,
17,29, 17,29, 17,29, 17,29,
17,29, 17,29, 17,29, 17,29,
17,29, 26,31, 0,0, 26,31,
0,0, 0,0, 26,32, 26,32,
26,32, 26,32, 26,32, 26,32,
26,32, 26,32, 26,32, 26,32,
31,32, 31,32, 31,32, 31,32,
31,32, 31,32, 31,32, 31,32,
31,32, 31,32, 0,0, 0,0,
0,0};
struct yysvf yysvec[] = {
0, 0, 0,
yycrank+-1, 0, yyvstop+1,
yycrank+-8, yysvec+1, yyvstop+3,
yycrank+-15, 0, yyvstop+5,
yycrank+-4, yysvec+3, yyvstop+7,
yycrank+0, 0, yyvstop+9,
yycrank+8, 0, yyvstop+11,
yycrank+0, yysvec+6, yyvstop+15,
yycrank+0, 0, yyvstop+18,
yycrank+3, yysvec+6, yyvstop+21,
yycrank+0, 0, yyvstop+24,
yycrank+37, 0, yyvstop+27,
yycrank+14, 0, yyvstop+29,
yycrank+49, 0, yyvstop+31,
yycrank+0, 0, yyvstop+34,
yycrank+3, 0, yyvstop+37,
yycrank+0, 0, yyvstop+40,
yycrank+86, 0, yyvstop+43,
yycrank+0, 0, yyvstop+46,
yycrank+0, 0, yyvstop+48,
yycrank+12, 0, yyvstop+50,
yycrank+5, yysvec+6, yyvstop+52,
yycrank+7, yysvec+11, yyvstop+54,
yycrank+0, 0, yyvstop+56,
yycrank+0, yysvec+11, 0,
yycrank+0, yysvec+13, yyvstop+58,
yycrank+166, 0, 0,
yycrank+0, 0, yyvstop+60,
yycrank+0, 0, yyvstop+62,
yycrank+0, yysvec+17, yyvstop+64,
yycrank+0, 0, yyvstop+66,
yycrank+176, 0, 0,
yycrank+0, yysvec+31, yyvstop+68,
0, 0, 0};
struct yywork *yytop = yycrank+233;
struct yysvf *yybgin = yysvec+1;
char yymatch[] = {
00 ,01 ,01 ,01 ,01 ,01 ,01 ,01 ,
01 ,011 ,012 ,01 ,01 ,01 ,01 ,01 ,
01 ,01 ,01 ,01 ,01 ,01 ,01 ,01 ,
01 ,01 ,01 ,01 ,01 ,01 ,01 ,01 ,
011 ,01 ,01 ,01 ,01 ,01 ,01 ,01 ,
01 ,01 ,01 ,'+' ,01 ,'+' ,01 ,01 ,
'0' ,'0' ,'0' ,'0' ,'0' ,'0' ,'0' ,'0' ,
'0' ,'0' ,01 ,01 ,'<' ,01 ,'<' ,01 ,
01 ,'A' ,'A' ,'A' ,'A' ,'E' ,'A' ,'A' ,
'A' ,'A' ,'A' ,'A' ,'A' ,'A' ,'A' ,'A' ,
'A' ,'A' ,'A' ,'A' ,'A' ,'A' ,'A' ,'A' ,
'A' ,'A' ,'A' ,01 ,01 ,01 ,01 ,'_' ,
01 ,'A' ,'A' ,'A' ,'A' ,'E' ,'A' ,'A' ,
'A' ,'A' ,'A' ,'A' ,'A' ,'A' ,'A' ,'A' ,
'A' ,'A' ,'A' ,'A' ,'A' ,'A' ,'A' ,'A' ,
'A' ,'A' ,'A' ,01 ,01 ,01 ,01 ,01 ,
0};
char yyextra[] = {
0,0,0,0,0,0,0,0,
0,0,0,0,0,0,0,0,
0};
#ifndef lint
static char ncform_sccsid[] = "@(#)ncform 1.6 88/02/08 SMI"; /* from S5R2 1.2 */
#endif
int yylineno =1;
# define YYU(x) x
# define NLSTATE yyprevious=YYNEWLINE
char yytext[YYLMAX];
struct yysvf *yylstate [YYLMAX], **yylsp, **yyolsp;
char yysbuf[YYLMAX];
char *yysptr = yysbuf;
int *yyfnd;
extern struct yysvf *yyestate;
int yyprevious = YYNEWLINE;
yylook(){
register struct yysvf *yystate, **lsp;
register struct yywork *yyt;
struct yysvf *yyz;
int yych, yyfirst;
struct yywork *yyr;
# ifdef LEXDEBUG
int debug;
# endif
char *yylastch;
/* start off machines */
# ifdef LEXDEBUG
debug = 0;
# endif
yyfirst=1;
if (!yymorfg)
yylastch = yytext;
else {
yymorfg=0;
yylastch = yytext+yyleng;
}
for(;;){
lsp = yylstate;
yyestate = yystate = yybgin;
if (yyprevious==YYNEWLINE) yystate++;
for (;;){
# ifdef LEXDEBUG
if(debug)fprintf(yyout,"state %d\n",yystate-yysvec-1);
# endif
yyt = yystate->yystoff;
if(yyt == yycrank && !yyfirst){ /* may not be any transitions */
yyz = yystate->yyother;
if(yyz == 0)break;
if(yyz->yystoff == yycrank)break;
}
*yylastch++ = yych = input();
yyfirst=0;
tryagain:
# ifdef LEXDEBUG
if(debug){
fprintf(yyout,"char ");
allprint(yych);
putchar('\n');
}
# endif
yyr = yyt;
if ( (int)yyt > (int)yycrank){
yyt = yyr + yych;
if (yyt <= yytop && yyt->verify+yysvec == yystate){
if(yyt->advance+yysvec == YYLERR) /* error transitions */
{unput(*--yylastch);break;}
*lsp++ = yystate = yyt->advance+yysvec;
goto contin;
}
}
# ifdef YYOPTIM
else if((int)yyt < (int)yycrank) { /* r < yycrank */
yyt = yyr = yycrank+(yycrank-yyt);
# ifdef LEXDEBUG
if(debug)fprintf(yyout,"compressed state\n");
# endif
yyt = yyt + yych;
if(yyt <= yytop && yyt->verify+yysvec == yystate){
if(yyt->advance+yysvec == YYLERR) /* error transitions */
{unput(*--yylastch);break;}
*lsp++ = yystate = yyt->advance+yysvec;
goto contin;
}
yyt = yyr + YYU(yymatch[yych]);
# ifdef LEXDEBUG
if(debug){
fprintf(yyout,"try fall back character ");
allprint(YYU(yymatch[yych]));
putchar('\n');
}
# endif
if(yyt <= yytop && yyt->verify+yysvec == yystate){
if(yyt->advance+yysvec == YYLERR) /* error transition */
{unput(*--yylastch);break;}
*lsp++ = yystate = yyt->advance+yysvec;
goto contin;
}
}
if ((yystate = yystate->yyother) && (yyt= yystate->yystoff) != yycrank){
# ifdef LEXDEBUG
if(debug)fprintf(yyout,"fall back to state %d\n",yystate-yysvec-1);
# endif
goto tryagain;
}
# endif
else
{unput(*--yylastch);break;}
contin:
# ifdef LEXDEBUG
if(debug){
fprintf(yyout,"state %d char ",yystate-yysvec-1);
allprint(yych);
putchar('\n');
}
# endif
;
}
# ifdef LEXDEBUG
if(debug){
fprintf(yyout,"stopped at %d with ",*(lsp-1)-yysvec-1);
allprint(yych);
putchar('\n');
}
# endif
while (lsp-- > yylstate){
*yylastch-- = 0;
if (*lsp != 0 && (yyfnd= (*lsp)->yystops) && *yyfnd > 0){
yyolsp = lsp;
if(yyextra[*yyfnd]){ /* must backup */
while(yyback((*lsp)->yystops,-*yyfnd) != 1 && lsp > yylstate){
lsp--;
unput(*yylastch--);
}
}
yyprevious = YYU(*yylastch);
yylsp = lsp;
yyleng = yylastch-yytext+1;
yytext[yyleng] = 0;
# ifdef LEXDEBUG
if(debug){
fprintf(yyout,"\nmatch ");
sprint(yytext);
fprintf(yyout," action %d\n",*yyfnd);
}
# endif
return(*yyfnd++);
}
unput(*yylastch);
}
if (yytext[0] == 0 /* && feof(yyin) */)
{
yysptr=yysbuf;
return(0);
}
yyprevious = yytext[0] = input();
if (yyprevious>0)
output(yyprevious);
yylastch=yytext;
# ifdef LEXDEBUG
if(debug)putchar('\n');
# endif
}
}
yyback(p, m)
int *p;
{
if (p==0) return(0);
while (*p)
{
if (*p++ == m)
return(1);
}
return(0);
}
/* the following are only used in the lex library */
yyinput(){
return(input());
}
yyoutput(c)
int c; {
output(c);
}
yyunput(c)
int c; {
unput(c);
}