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lua/lex_yy.c
The Lua team cd05d9c5cb oldest known commit
1993-07-28 10:18:00 -03:00

924 lines
15 KiB
C
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# 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;
#include <stdlib.h>
#include <string.h>
#include "opcode.h"
#include "hash.h"
#include "inout.h"
#include "table.h"
#include "y_tab.h"
#undef input
#undef unput
static Input input;
static Unput unput;
void lua_setinput (Input fn)
{
input = fn;
}
void lua_setunput (Unput fn)
{
unput = fn;
}
char *lua_lasttext (void)
{
return yytext;
}
# 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:
;
break;
case 2:
{yylval.vInt = 1; return DEBUG;}
break;
case 3:
{yylval.vInt = 0; return DEBUG;}
break;
case 4:
lua_linenumber++;
break;
case 5:
;
break;
case 6:
return LOCAL;
break;
case 7:
return IF;
break;
case 8:
return THEN;
break;
case 9:
return ELSE;
break;
case 10:
return ELSEIF;
break;
case 11:
return WHILE;
break;
case 12:
return DO;
break;
case 13:
return REPEAT;
break;
case 14:
return UNTIL;
break;
case 15:
{
yylval.vWord = lua_nfile-1;
return FUNCTION;
}
break;
case 16:
return END;
break;
case 17:
return RETURN;
break;
case 18:
return LOCAL;
break;
case 19:
return NIL;
break;
case 20:
return AND;
break;
case 21:
return OR;
break;
case 22:
return NOT;
break;
case 23:
return NE;
break;
case 24:
return LE;
break;
case 25:
return GE;
break;
case 26:
return CONC;
break;
case 27:
case 28:
{
yylval.vWord = lua_findenclosedconstant (yytext);
return STRING;
}
break;
case 29:
case 30:
case 31:
case 32:
{
yylval.vFloat = atof(yytext);
return NUMBER;
}
break;
case 33:
{
yylval.vWord = lua_findsymbol (yytext);
return NAME;
}
break;
case 34:
return *yytext;
break;
case -1:
break;
default:
fprintf(yyout,"bad switch yylook %d",nstr);
} return(0); }
/* end of yylex */
int yyvstop[] = {
0,
1,
0,
1,
0,
34,
0,
1,
34,
0,
4,
0,
34,
0,
34,
0,
34,
0,
34,
0,
29,
34,
0,
34,
0,
34,
0,
33,
34,
0,
33,
34,
0,
33,
34,
0,
33,
34,
0,
33,
34,
0,
33,
34,
0,
33,
34,
0,
33,
34,
0,
33,
34,
0,
33,
34,
0,
33,
34,
0,
33,
34,
0,
33,
34,
0,
34,
0,
34,
0,
1,
0,
27,
0,
28,
0,
5,
0,
26,
0,
30,
0,
29,
0,
29,
0,
24,
0,
25,
0,
33,
0,
33,
0,
12,
33,
0,
33,
0,
33,
0,
33,
0,
7,
33,
0,
33,
0,
33,
0,
33,
0,
21,
33,
0,
33,
0,
33,
0,
33,
0,
33,
0,
23,
0,
29,
30,
0,
31,
0,
20,
33,
0,
33,
0,
16,
33,
0,
33,
0,
33,
0,
19,
33,
0,
22,
33,
0,
33,
0,
33,
0,
33,
0,
33,
0,
33,
0,
32,
0,
9,
33,
0,
33,
0,
33,
0,
33,
0,
33,
0,
8,
33,
0,
33,
0,
33,
0,
31,
32,
0,
33,
0,
33,
0,
6,
18,
33,
0,
33,
0,
33,
0,
14,
33,
0,
11,
33,
0,
10,
33,
0,
33,
0,
13,
33,
0,
17,
33,
0,
2,
0,
33,
0,
15,
33,
0,
3,
0,
0};
# define YYTYPE char
struct yywork { YYTYPE verify, advance; } yycrank[] = {
0,0, 0,0, 1,3, 0,0,
0,0, 0,0, 0,0, 0,0,
0,0, 0,0, 1,4, 1,5,
6,29, 4,28, 0,0, 0,0,
0,0, 0,0, 7,31, 0,0,
6,29, 6,29, 0,0, 0,0,
0,0, 0,0, 7,31, 7,31,
0,0, 0,0, 0,0, 0,0,
0,0, 0,0, 0,0, 1,6,
4,28, 0,0, 0,0, 0,0,
1,7, 0,0, 0,0, 0,0,
1,3, 6,30, 1,8, 1,9,
0,0, 1,10, 6,29, 7,31,
8,33, 0,0, 6,29, 0,0,
7,32, 0,0, 0,0, 6,29,
7,31, 1,11, 0,0, 1,12,
2,27, 7,31, 1,13, 11,39,
12,40, 1,13, 26,56, 0,0,
0,0, 2,8, 2,9, 0,0,
6,29, 0,0, 0,0, 6,29,
0,0, 0,0, 7,31, 0,0,
0,0, 7,31, 0,0, 0,0,
2,11, 0,0, 2,12, 0,0,
0,0, 0,0, 0,0, 0,0,
0,0, 0,0, 1,14, 0,0,
0,0, 1,15, 1,16, 1,17,
0,0, 22,52, 1,18, 18,47,
23,53, 1,19, 42,63, 1,20,
1,21, 25,55, 14,42, 1,22,
15,43, 1,23, 1,24, 16,44,
1,25, 16,45, 17,46, 19,48,
21,51, 2,14, 20,49, 1,26,
2,15, 2,16, 2,17, 24,54,
20,50, 2,18, 44,64, 45,65,
2,19, 46,66, 2,20, 2,21,
27,57, 48,67, 2,22, 49,68,
2,23, 2,24, 50,69, 2,25,
52,70, 53,72, 27,58, 54,73,
52,71, 9,34, 2,26, 9,35,
9,35, 9,35, 9,35, 9,35,
9,35, 9,35, 9,35, 9,35,
9,35, 10,36, 55,74, 10,37,
10,37, 10,37, 10,37, 10,37,
10,37, 10,37, 10,37, 10,37,
10,37, 57,75, 58,76, 64,80,
66,81, 67,82, 70,83, 71,84,
72,85, 73,86, 74,87, 10,38,
10,38, 38,61, 10,38, 38,61,
75,88, 76,89, 38,62, 38,62,
38,62, 38,62, 38,62, 38,62,
38,62, 38,62, 38,62, 38,62,
80,92, 81,93, 13,41, 13,41,
13,41, 13,41, 13,41, 13,41,
13,41, 13,41, 13,41, 13,41,
82,94, 83,95, 84,96, 10,38,
10,38, 86,97, 10,38, 13,41,
13,41, 13,41, 13,41, 13,41,
13,41, 13,41, 13,41, 13,41,
13,41, 13,41, 13,41, 13,41,
13,41, 13,41, 13,41, 13,41,
13,41, 13,41, 13,41, 13,41,
13,41, 13,41, 13,41, 13,41,
13,41, 87,98, 88,99, 60,79,
60,79, 13,41, 60,79, 13,41,
13,41, 13,41, 13,41, 13,41,
13,41, 13,41, 13,41, 13,41,
13,41, 13,41, 13,41, 13,41,
13,41, 13,41, 13,41, 13,41,
13,41, 13,41, 13,41, 13,41,
13,41, 13,41, 13,41, 13,41,
13,41, 33,33, 89,100, 60,79,
60,79, 92,101, 60,79, 93,102,
95,103, 33,33, 33,0, 96,104,
99,105, 100,106, 102,107, 106,108,
107,109, 35,35, 35,35, 35,35,
35,35, 35,35, 35,35, 35,35,
35,35, 35,35, 35,35, 108,110,
0,0, 0,0, 0,0, 0,0,
0,0, 0,0, 33,33, 0,0,
0,0, 35,59, 35,59, 33,33,
35,59, 0,0, 0,0, 33,33,
0,0, 0,0, 0,0, 0,0,
33,33, 0,0, 0,0, 0,0,
0,0, 36,60, 36,60, 36,60,
36,60, 36,60, 36,60, 36,60,
36,60, 36,60, 36,60, 0,0,
0,0, 33,33, 0,0, 0,0,
33,33, 35,59, 35,59, 0,0,
35,59, 36,38, 36,38, 59,77,
36,38, 59,77, 0,0, 0,0,
59,78, 59,78, 59,78, 59,78,
59,78, 59,78, 59,78, 59,78,
59,78, 59,78, 61,62, 61,62,
61,62, 61,62, 61,62, 61,62,
61,62, 61,62, 61,62, 61,62,
0,0, 0,0, 0,0, 0,0,
0,0, 36,38, 36,38, 0,0,
36,38, 77,78, 77,78, 77,78,
77,78, 77,78, 77,78, 77,78,
77,78, 77,78, 77,78, 79,90,
0,0, 79,90, 0,0, 0,0,
79,91, 79,91, 79,91, 79,91,
79,91, 79,91, 79,91, 79,91,
79,91, 79,91, 90,91, 90,91,
90,91, 90,91, 90,91, 90,91,
90,91, 90,91, 90,91, 90,91,
0,0};
struct yysvf yysvec[] = {
0, 0, 0,
yycrank+-1, 0, yyvstop+1,
yycrank+-28, yysvec+1, yyvstop+3,
yycrank+0, 0, yyvstop+5,
yycrank+4, 0, yyvstop+7,
yycrank+0, 0, yyvstop+10,
yycrank+-11, 0, yyvstop+12,
yycrank+-17, 0, yyvstop+14,
yycrank+7, 0, yyvstop+16,
yycrank+107, 0, yyvstop+18,
yycrank+119, 0, yyvstop+20,
yycrank+6, 0, yyvstop+23,
yycrank+7, 0, yyvstop+25,
yycrank+158, 0, yyvstop+27,
yycrank+4, yysvec+13, yyvstop+30,
yycrank+5, yysvec+13, yyvstop+33,
yycrank+11, yysvec+13, yyvstop+36,
yycrank+5, yysvec+13, yyvstop+39,
yycrank+5, yysvec+13, yyvstop+42,
yycrank+12, yysvec+13, yyvstop+45,
yycrank+21, yysvec+13, yyvstop+48,
yycrank+10, yysvec+13, yyvstop+51,
yycrank+4, yysvec+13, yyvstop+54,
yycrank+4, yysvec+13, yyvstop+57,
yycrank+21, yysvec+13, yyvstop+60,
yycrank+9, yysvec+13, yyvstop+63,
yycrank+9, 0, yyvstop+66,
yycrank+40, 0, yyvstop+68,
yycrank+0, yysvec+4, yyvstop+70,
yycrank+0, yysvec+6, 0,
yycrank+0, 0, yyvstop+72,
yycrank+0, yysvec+7, 0,
yycrank+0, 0, yyvstop+74,
yycrank+-280, 0, yyvstop+76,
yycrank+0, 0, yyvstop+78,
yycrank+249, 0, yyvstop+80,
yycrank+285, 0, yyvstop+82,
yycrank+0, yysvec+10, yyvstop+84,
yycrank+146, 0, 0,
yycrank+0, 0, yyvstop+86,
yycrank+0, 0, yyvstop+88,
yycrank+0, yysvec+13, yyvstop+90,
yycrank+10, yysvec+13, yyvstop+92,
yycrank+0, yysvec+13, yyvstop+94,
yycrank+19, yysvec+13, yyvstop+97,
yycrank+35, yysvec+13, yyvstop+99,
yycrank+27, yysvec+13, yyvstop+101,
yycrank+0, yysvec+13, yyvstop+103,
yycrank+42, yysvec+13, yyvstop+106,
yycrank+35, yysvec+13, yyvstop+108,
yycrank+30, yysvec+13, yyvstop+110,
yycrank+0, yysvec+13, yyvstop+112,
yycrank+36, yysvec+13, yyvstop+115,
yycrank+48, yysvec+13, yyvstop+117,
yycrank+35, yysvec+13, yyvstop+119,
yycrank+61, yysvec+13, yyvstop+121,
yycrank+0, 0, yyvstop+123,
yycrank+76, 0, 0,
yycrank+67, 0, 0,
yycrank+312, 0, 0,
yycrank+183, yysvec+36, yyvstop+125,
yycrank+322, 0, 0,
yycrank+0, yysvec+61, yyvstop+128,
yycrank+0, yysvec+13, yyvstop+130,
yycrank+78, yysvec+13, yyvstop+133,
yycrank+0, yysvec+13, yyvstop+135,
yycrank+81, yysvec+13, yyvstop+138,
yycrank+84, yysvec+13, yyvstop+140,
yycrank+0, yysvec+13, yyvstop+142,
yycrank+0, yysvec+13, yyvstop+145,
yycrank+81, yysvec+13, yyvstop+148,
yycrank+66, yysvec+13, yyvstop+150,
yycrank+74, yysvec+13, yyvstop+152,
yycrank+80, yysvec+13, yyvstop+154,
yycrank+78, yysvec+13, yyvstop+156,
yycrank+94, 0, 0,
yycrank+93, 0, 0,
yycrank+341, 0, 0,
yycrank+0, yysvec+77, yyvstop+158,
yycrank+356, 0, 0,
yycrank+99, yysvec+13, yyvstop+160,
yycrank+89, yysvec+13, yyvstop+163,
yycrank+108, yysvec+13, yyvstop+165,
yycrank+120, yysvec+13, yyvstop+167,
yycrank+104, yysvec+13, yyvstop+169,
yycrank+0, yysvec+13, yyvstop+171,
yycrank+113, yysvec+13, yyvstop+174,
yycrank+148, yysvec+13, yyvstop+176,
yycrank+133, 0, 0,
yycrank+181, 0, 0,
yycrank+366, 0, 0,
yycrank+0, yysvec+90, yyvstop+178,
yycrank+183, yysvec+13, yyvstop+181,
yycrank+182, yysvec+13, yyvstop+183,
yycrank+0, yysvec+13, yyvstop+185,
yycrank+172, yysvec+13, yyvstop+189,
yycrank+181, yysvec+13, yyvstop+191,
yycrank+0, yysvec+13, yyvstop+193,
yycrank+0, yysvec+13, yyvstop+196,
yycrank+189, 0, 0,
yycrank+195, 0, 0,
yycrank+0, yysvec+13, yyvstop+199,
yycrank+183, yysvec+13, yyvstop+202,
yycrank+0, yysvec+13, yyvstop+204,
yycrank+0, yysvec+13, yyvstop+207,
yycrank+0, 0, yyvstop+210,
yycrank+178, 0, 0,
yycrank+186, yysvec+13, yyvstop+212,
yycrank+204, 0, 0,
yycrank+0, yysvec+13, yyvstop+214,
yycrank+0, 0, yyvstop+217,
0, 0, 0};
struct yywork *yytop = yycrank+423;
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 ,047 ,
01 ,01 ,01 ,'+' ,01 ,'+' ,01 ,01 ,
'0' ,'0' ,'0' ,'0' ,'0' ,'0' ,'0' ,'0' ,
'0' ,'0' ,01 ,01 ,01 ,01 ,01 ,01 ,
01 ,'A' ,'A' ,'A' ,'D' ,'D' ,'A' ,'D' ,
'A' ,'A' ,'A' ,'A' ,'A' ,'A' ,'A' ,'A' ,
'A' ,'A' ,'A' ,'A' ,'A' ,'A' ,'A' ,'A' ,
'A' ,'A' ,'A' ,01 ,01 ,01 ,01 ,'A' ,
01 ,'A' ,'A' ,'A' ,'D' ,'D' ,'A' ,'D' ,
'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,
0,0,0,0,0,0,0,0,
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);
}
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