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Author SHA1 Message Date
The Lua team
b9dde086db This is Lua 1.0. It was never publicly released. This code is a snapshot of
the status of Lua on 28 Jul 1993. It is distributed for historical curiosity
to celebrate 10 years of Lua and is hereby placed in the public domain.

There is no documentation, except the test programs. The manual for Lua 1.1
probably works for this version as well.

The source files for the lexer and parser have been lost: all that is left is
the output of lex and yacc. A grammar can be found inside y_tab.c in yyreds.

The code compiles and runs in RedHat 5.2 with gcc 2.7.2.3. It may not run in
newer systems, because it assumes that stdin and stdout are constants, though
ANSI C does not promise they are. If make fails, try using the fixed modules
provided in the "fixed" directory. To see the differences (which are really
quite minor), do "make diff".

To see Lua 1.0 in action, do "make test". (The last test raises an error on
purpose.)

Enjoy!

-- The Lua team, lua@tecgraf.puc-rio.br
2003-10-09 23:44:30 -03:00
48 changed files with 6202 additions and 7346 deletions

29
Makefile Normal file
View File

@@ -0,0 +1,29 @@
OBJS= hash.o inout.o lex_yy.o opcode.o table.o y_tab.o lua.o iolib.o mathlib.o strlib.o
CFLAGS= -O2 -I.
T= lua
all: $T
$T: $(OBJS)
$(CC) -o $@ $(OBJS) -lm
A=--------------------------------------------------------------------------
test: $T
@echo "$A"
./$T sort.lua main
@echo "$A"
./$T globals.lua | sort | column
@echo "$A"
./$T array.lua
@echo "$A"
./$T save.lua
@echo "$A"
./$T test.lua retorno_multiplo norma
clean:
rm -f $T $(OBJS) core core.*
diff:
diff . fixed | grep -v ^Only

22
README Normal file
View File

@@ -0,0 +1,22 @@
This is Lua 1.0. It was never publicly released. This code is a snapshot of
the status of Lua on 28 Jul 1993. It is distributed for historical curiosity
to celebrate 10 years of Lua and is hereby placed in the public domain.
There is no documentation, except the test programs. The manual for Lua 1.1
probably works for this version as well.
The source files for the lexer and parser have been lost: all that is left is
the output of lex and yacc. A grammar can be found inside y_tab.c in yyreds.
The code compiles and runs in RedHat 5.2 with gcc 2.7.2.3. It may not run in
newer systems, because it assumes that stdin and stdout are constants, though
ANSI C does not promise they are. If make fails, try using the fixed modules
provided in the "fixed" directory. To see the differences (which are really
quite minor), do "make diff".
To see Lua 1.0 in action, do "make test". (The last test raises an error on
purpose.)
Enjoy!
-- The Lua team, lua@tecgraf.puc-rio.br

15
array.lua Normal file
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@@ -0,0 +1,15 @@
$debug
a = @()
i=0
while i<10 do
a[i] = i*i
i=i+1
end
r,v = next(a,nil)
while r ~= nil do
print ("array["..r.."] = "..v)
r,v = next(a,r)
end

View File

@@ -1,175 +0,0 @@
/*
** fallback.c
** TecCGraf - PUC-Rio
*/
char *rcs_fallback="$Id: fallback.c,v 1.22 1996/03/19 22:28:37 roberto Exp roberto $";
#include <stdio.h>
#include <string.h>
#include "mem.h"
#include "fallback.h"
#include "opcode.h"
#include "lua.h"
static void errorFB (void);
static void indexFB (void);
static void gettableFB (void);
static void arithFB (void);
static void concatFB (void);
static void orderFB (void);
static void GDFB (void);
static void funcFB (void);
/*
** Warning: This list must be in the same order as the #define's
*/
struct FB luaI_fallBacks[] = {
{"error", {LUA_T_CFUNCTION, {errorFB}}, 1, 0},
{"index", {LUA_T_CFUNCTION, {indexFB}}, 2, 1},
{"gettable", {LUA_T_CFUNCTION, {gettableFB}}, 2, 1},
{"arith", {LUA_T_CFUNCTION, {arithFB}}, 3, 1},
{"order", {LUA_T_CFUNCTION, {orderFB}}, 3, 1},
{"concat", {LUA_T_CFUNCTION, {concatFB}}, 2, 1},
{"settable", {LUA_T_CFUNCTION, {gettableFB}}, 3, 0},
{"gc", {LUA_T_CFUNCTION, {GDFB}}, 1, 0},
{"function", {LUA_T_CFUNCTION, {funcFB}}, -1, -1},
/* no fixed number of params or results */
{"getglobal", {LUA_T_CFUNCTION, {indexFB}}, 1, 1}
/* same default behavior of index FB */
};
#define N_FB (sizeof(luaI_fallBacks)/sizeof(struct FB))
void luaI_setfallback (void)
{
int i;
char *name = lua_getstring(lua_getparam(1));
lua_Object func = lua_getparam(2);
if (name == NULL || !lua_isfunction(func))
lua_error("incorrect argument to function `setfallback'");
for (i=0; i<N_FB; i++)
{
if (strcmp(luaI_fallBacks[i].kind, name) == 0)
{
luaI_pushobject(&luaI_fallBacks[i].function);
luaI_fallBacks[i].function = *luaI_Address(func);
return;
}
}
/* name not found */
lua_error("incorrect argument to function `setfallback'");
}
static void errorFB (void)
{
lua_Object o = lua_getparam(1);
if (lua_isstring(o))
fprintf (stderr, "lua: %s\n", lua_getstring(o));
else
fprintf(stderr, "lua: unknown error\n");
}
static void indexFB (void)
{
lua_pushnil();
}
static void gettableFB (void)
{
lua_error("indexed expression not a table");
}
static void arithFB (void)
{
lua_error("unexpected type at conversion to number");
}
static void concatFB (void)
{
lua_error("unexpected type at conversion to string");
}
static void orderFB (void)
{
lua_error("unexpected type at comparison");
}
static void GDFB (void) { }
static void funcFB (void)
{
lua_error("call expression not a function");
}
/*
** Lock routines
*/
static Object *lockArray = NULL;
static int lockSize = 0;
int luaI_lock (Object *object)
{
int i;
int oldSize;
if (tag(object) == LUA_T_NIL)
return -1; /* special lock ref for nil */
for (i=0; i<lockSize; i++)
if (tag(&lockArray[i]) == LUA_T_NIL)
{
lockArray[i] = *object;
return i;
}
/* no more empty spaces */
oldSize = lockSize;
lockSize = growvector(&lockArray, lockSize, Object, lockEM, MAX_WORD);
for (i=oldSize; i<lockSize; i++)
tag(&lockArray[i]) = LUA_T_NIL;
lockArray[oldSize] = *object;
return oldSize;
}
void lua_unlock (int ref)
{
if (ref >= 0 && ref < lockSize)
tag(&lockArray[ref]) = LUA_T_NIL;
}
Object *luaI_getlocked (int ref)
{
static Object nul = {LUA_T_NIL, {0}};
if (ref >= 0 && ref < lockSize)
return &lockArray[ref];
else
return &nul;
}
void luaI_travlock (int (*fn)(Object *))
{
int i;
for (i=0; i<lockSize; i++)
fn(&lockArray[i]);
}
char *luaI_travfallbacks (int (*fn)(Object *))
{
int i;
for (i=0; i<N_FB; i++)
if (fn(&luaI_fallBacks[i].function))
return luaI_fallBacks[i].kind;
return NULL;
}

View File

@@ -1,35 +0,0 @@
/*
** $Id: fallback.h,v 1.10 1995/10/17 11:52:38 roberto Exp roberto $
*/
#ifndef fallback_h
#define fallback_h
#include "opcode.h"
extern struct FB {
char *kind;
Object function;
int nParams;
int nResults;
} luaI_fallBacks[];
#define FB_ERROR 0
#define FB_INDEX 1
#define FB_GETTABLE 2
#define FB_ARITH 3
#define FB_ORDER 4
#define FB_CONCAT 5
#define FB_SETTABLE 6
#define FB_GC 7
#define FB_FUNCTION 8
#define FB_GETGLOBAL 9
void luaI_setfallback (void);
int luaI_lock (Object *object);
Object *luaI_getlocked (int ref);
void luaI_travlock (int (*fn)(Object *));
char *luaI_travfallbacks (int (*fn)(Object *));
#endif

402
fixed/iolib.c Normal file
View File

@@ -0,0 +1,402 @@
/*
** iolib.c
** Input/output library to LUA
**
** Waldemar Celes Filho
** TeCGraf - PUC-Rio
** 19 May 93
*/
#include <stdlib.h>
#include <string.h>
#include <stdio.h>
#include <ctype.h>
#ifdef __GNUC__
#include <floatingpoint.h>
#endif
#include "lua.h"
static FILE *in=NULL, *out=NULL;
/*
** Open a file to read.
** LUA interface:
** status = readfrom (filename)
** where:
** status = 1 -> success
** status = 0 -> error
*/
static void io_readfrom (void)
{
lua_Object o = lua_getparam (1);
if (o == NULL) /* restore standart input */
{
if (in != stdin)
{
fclose (in);
in = stdin;
}
lua_pushnumber (1);
}
else
{
if (!lua_isstring (o))
{
lua_error ("incorrect argument to function 'readfrom`");
lua_pushnumber (0);
}
else
{
FILE *fp = fopen (lua_getstring(o),"r");
if (fp == NULL)
{
lua_pushnumber (0);
}
else
{
if (in != stdin) fclose (in);
in = fp;
lua_pushnumber (1);
}
}
}
}
/*
** Open a file to write.
** LUA interface:
** status = writeto (filename)
** where:
** status = 1 -> success
** status = 0 -> error
*/
static void io_writeto (void)
{
lua_Object o = lua_getparam (1);
if (o == NULL) /* restore standart output */
{
if (out != stdout)
{
fclose (out);
out = stdout;
}
lua_pushnumber (1);
}
else
{
if (!lua_isstring (o))
{
lua_error ("incorrect argument to function 'writeto`");
lua_pushnumber (0);
}
else
{
FILE *fp = fopen (lua_getstring(o),"w");
if (fp == NULL)
{
lua_pushnumber (0);
}
else
{
if (out != stdout) fclose (out);
out = fp;
lua_pushnumber (1);
}
}
}
}
/*
** Read a variable. On error put nil on stack.
** LUA interface:
** variable = read ([format])
**
** O formato pode ter um dos seguintes especificadores:
**
** s ou S -> para string
** f ou F, g ou G, e ou E -> para reais
** i ou I -> para inteiros
**
** Estes especificadores podem vir seguidos de numero que representa
** o numero de campos a serem lidos.
*/
static void io_read (void)
{
lua_Object o = lua_getparam (1);
if (o == NULL) /* free format */
{
int c;
char s[256];
while (isspace(c=fgetc(in)))
;
if (c == '\"')
{
if (fscanf (in, "%[^\"]\"", s) != 1)
{
lua_pushnil ();
return;
}
}
else if (c == '\'')
{
if (fscanf (in, "%[^\']\'", s) != 1)
{
lua_pushnil ();
return;
}
}
else
{
char *ptr;
double d;
ungetc (c, in);
if (fscanf (in, "%s", s) != 1)
{
lua_pushnil ();
return;
}
d = strtod (s, &ptr);
if (!(*ptr))
{
lua_pushnumber (d);
return;
}
}
lua_pushstring (s);
return;
}
else /* formatted */
{
char *e = lua_getstring(o);
char t;
int m=0;
while (isspace(*e)) e++;
t = *e++;
while (isdigit(*e))
m = m*10 + (*e++ - '0');
if (m > 0)
{
char f[80];
char s[256];
sprintf (f, "%%%ds", m);
fscanf (in, f, s);
switch (tolower(t))
{
case 'i':
{
long int l;
sscanf (s, "%ld", &l);
lua_pushnumber(l);
}
break;
case 'f': case 'g': case 'e':
{
float f;
sscanf (s, "%f", &f);
lua_pushnumber(f);
}
break;
default:
lua_pushstring(s);
break;
}
}
else
{
switch (tolower(t))
{
case 'i':
{
long int l;
fscanf (in, "%ld", &l);
lua_pushnumber(l);
}
break;
case 'f': case 'g': case 'e':
{
float f;
fscanf (in, "%f", &f);
lua_pushnumber(f);
}
break;
default:
{
char s[256];
fscanf (in, "%s", s);
lua_pushstring(s);
}
break;
}
}
}
}
/*
** Write a variable. On error put 0 on stack, otherwise put 1.
** LUA interface:
** status = write (variable [,format])
**
** O formato pode ter um dos seguintes especificadores:
**
** s ou S -> para string
** f ou F, g ou G, e ou E -> para reais
** i ou I -> para inteiros
**
** Estes especificadores podem vir seguidos de:
**
** [?][m][.n]
**
** onde:
** ? -> indica justificacao
** < = esquerda
** | = centro
** > = direita (default)
** m -> numero maximo de campos (se exceder estoura)
** n -> indica precisao para
** reais -> numero de casas decimais
** inteiros -> numero minimo de digitos
** string -> nao se aplica
*/
static char *buildformat (char *e, lua_Object o)
{
static char buffer[512];
static char f[80];
char *string = &buffer[255];
char t, j='r';
int m=0, n=0, l;
while (isspace(*e)) e++;
t = *e++;
if (*e == '<' || *e == '|' || *e == '>') j = *e++;
while (isdigit(*e))
m = m*10 + (*e++ - '0');
e++; /* skip point */
while (isdigit(*e))
n = n*10 + (*e++ - '0');
sprintf(f,"%%");
if (j == '<' || j == '|') sprintf(strchr(f,0),"-");
if (m != 0) sprintf(strchr(f,0),"%d", m);
if (n != 0) sprintf(strchr(f,0),".%d", n);
sprintf(strchr(f,0), "%c", t);
switch (tolower(t))
{
case 'i': t = 'i';
sprintf (string, f, (long int)lua_getnumber(o));
break;
case 'f': case 'g': case 'e': t = 'f';
sprintf (string, f, (float)lua_getnumber(o));
break;
case 's': t = 's';
sprintf (string, f, lua_getstring(o));
break;
default: return "";
}
l = strlen(string);
if (m!=0 && l>m)
{
int i;
for (i=0; i<m; i++)
string[i] = '*';
string[i] = 0;
}
else if (m!=0 && j=='|')
{
int i=l-1;
while (isspace(string[i])) i--;
string -= (m-i) / 2;
i=0;
while (string[i]==0) string[i++] = ' ';
string[l] = 0;
}
return string;
}
static void io_write (void)
{
lua_Object o1 = lua_getparam (1);
lua_Object o2 = lua_getparam (2);
if (o1 == NULL) /* new line */
{
fprintf (out, "\n");
lua_pushnumber(1);
}
else if (o2 == NULL) /* free format */
{
int status=0;
if (lua_isnumber(o1))
status = fprintf (out, "%g", lua_getnumber(o1));
else if (lua_isstring(o1))
status = fprintf (out, "%s", lua_getstring(o1));
lua_pushnumber(status);
}
else /* formated */
{
if (!lua_isstring(o2))
{
lua_error ("incorrect format to function `write'");
lua_pushnumber(0);
return;
}
lua_pushnumber(fprintf (out, "%s", buildformat(lua_getstring(o2),o1)));
}
}
/*
** Execute a executable program using "sustem".
** On error put 0 on stack, otherwise put 1.
*/
void io_execute (void)
{
lua_Object o = lua_getparam (1);
if (o == NULL || !lua_isstring (o))
{
lua_error ("incorrect argument to function 'execute`");
lua_pushnumber (0);
}
else
{
system(lua_getstring(o));
lua_pushnumber (1);
}
return;
}
/*
** Remove a file.
** On error put 0 on stack, otherwise put 1.
*/
void io_remove (void)
{
lua_Object o = lua_getparam (1);
if (o == NULL || !lua_isstring (o))
{
lua_error ("incorrect argument to function 'execute`");
lua_pushnumber (0);
}
else
{
if (remove(lua_getstring(o)) == 0)
lua_pushnumber (1);
else
lua_pushnumber (0);
}
return;
}
/*
** Open io library
*/
void iolib_open (void)
{
in=stdin; out=stdout;
lua_register ("readfrom", io_readfrom);
lua_register ("writeto", io_writeto);
lua_register ("read", io_read);
lua_register ("write", io_write);
lua_register ("execute", io_execute);
lua_register ("remove", io_remove);
}

923
fixed/lex_yy.c Normal file
View File

@@ -0,0 +1,923 @@
# 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 = {NULL}, *yyout = {NULL};
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);
}

55
fixed/lua.c Normal file
View File

@@ -0,0 +1,55 @@
/*
** lua.c
** Linguagem para Usuarios de Aplicacao
** TeCGraf - PUC-Rio
** 28 Apr 93
*/
#include <stdio.h>
#include "lua.h"
#include "lualib.h"
void test (void)
{
lua_pushobject(lua_getparam(1));
lua_call ("c", 1);
}
static void callfunc (void)
{
lua_Object obj = lua_getparam (1);
if (lua_isstring(obj)) lua_call(lua_getstring(obj),0);
}
static void execstr (void)
{
lua_Object obj = lua_getparam (1);
if (lua_isstring(obj)) lua_dostring(lua_getstring(obj));
}
int main (int argc, char *argv[])
{
int i;
if (argc < 2)
{
puts ("usage: lua filename [functionnames]");
return;
}
lua_register ("callfunc", callfunc);
lua_register ("execstr", execstr);
lua_register ("test", test);
iolib_open ();
strlib_open ();
mathlib_open ();
lua_dofile (argv[1]);
for (i=2; i<argc; i++)
{
lua_call (argv[i],0);
}
return 0;
}

1
floatingpoint.h Normal file
View File

@@ -0,0 +1 @@
/* empty file to please silly code in iolib.c and opcode.c */

156
func.c
View File

@@ -1,156 +0,0 @@
#include <stdlib.h>
#include "luadebug.h"
#include "table.h"
#include "mem.h"
#include "func.h"
#include "opcode.h"
static TFunc *function_root = NULL;
static LocVar *currvars = NULL;
static int numcurrvars = 0;
static int maxcurrvars = 0;
/*
** Initialize TFunc struct
*/
void luaI_initTFunc (TFunc *f)
{
f->next = NULL;
f->marked = 0;
f->size = 0;
f->code = NULL;
f->lineDefined = 0;
f->fileName = NULL;
f->locvars = NULL;
}
/*
** Insert function in list for GC
*/
void luaI_insertfunction (TFunc *f)
{
lua_pack();
f->next = function_root;
function_root = f;
f->marked = 0;
}
/*
** Free function
*/
void luaI_freefunc (TFunc *f)
{
luaI_free (f->code);
luaI_free (f->locvars);
luaI_free (f);
}
/*
** Garbage collection function.
** This function traverse the function list freeing unindexed functions
*/
Long luaI_funccollector (void)
{
TFunc *curr = function_root;
TFunc *prev = NULL;
Long counter = 0;
while (curr)
{
TFunc *next = curr->next;
if (!curr->marked)
{
if (prev == NULL)
function_root = next;
else
prev->next = next;
luaI_freefunc (curr);
++counter;
}
else
{
curr->marked = 0;
prev = curr;
}
curr = next;
}
return counter;
}
void lua_funcinfo (lua_Object func, char **filename, int *linedefined)
{
Object *f = luaI_Address(func);
if (f->tag == LUA_T_MARK || f->tag == LUA_T_FUNCTION)
{
*filename = f->value.tf->fileName;
*linedefined = f->value.tf->lineDefined;
}
else if (f->tag == LUA_T_CMARK || f->tag == LUA_T_CFUNCTION)
{
*filename = "(C)";
*linedefined = -1;
}
}
/*
** Stores information to know that variable has been declared in given line
*/
void luaI_registerlocalvar (TaggedString *varname, int line)
{
if (numcurrvars >= maxcurrvars)
maxcurrvars = growvector(&currvars, maxcurrvars, LocVar, "", MAX_WORD);
currvars[numcurrvars].varname = varname;
currvars[numcurrvars].line = line;
numcurrvars++;
}
/*
** Stores information to know that variable has been out of scope in given line
*/
void luaI_unregisterlocalvar (int line)
{
luaI_registerlocalvar(NULL, line);
}
/*
** Copies "currvars" into a new area and store it in function header.
** The values (varname = NULL, line = -1) signal the end of vector.
*/
void luaI_closelocalvars (TFunc *func)
{
func->locvars = newvector (numcurrvars+1, LocVar);
memcpy (func->locvars, currvars, numcurrvars*sizeof(LocVar));
func->locvars[numcurrvars].varname = NULL;
func->locvars[numcurrvars].line = -1;
numcurrvars = 0; /* prepares for next function */
}
/*
** Look for n-esim local variable at line "line" in function "func".
** Returns NULL if not found.
*/
char *luaI_getlocalname (TFunc *func, int local_number, int line)
{
int count = 0;
char *varname = NULL;
LocVar *lv = func->locvars;
if (lv == NULL)
return NULL;
for (; lv->line != -1 && lv->line < line; lv++)
{
if (lv->varname) /* register */
{
if (++count == local_number)
varname = lv->varname->str;
}
else /* unregister */
if (--count < local_number)
varname = NULL;
}
return varname;
}

44
func.h
View File

@@ -1,44 +0,0 @@
/*
** $Id: func.h,v 1.7 1996/03/08 12:04:04 roberto Exp roberto $
*/
#ifndef func_h
#define func_h
#include "types.h"
#include "lua.h"
#include "tree.h"
typedef struct LocVar
{
TaggedString *varname; /* NULL signals end of scope */
int line;
} LocVar;
/*
** Function Headers
*/
typedef struct TFunc
{
struct TFunc *next;
int marked;
int size;
Byte *code;
int lineDefined;
char *fileName;
LocVar *locvars;
} TFunc;
Long luaI_funccollector (void);
void luaI_insertfunction (TFunc *f);
void luaI_initTFunc (TFunc *f);
void luaI_freefunc (TFunc *f);
void luaI_registerlocalvar (TaggedString *varname, int line);
void luaI_unregisterlocalvar (int line);
void luaI_closelocalvars (TFunc *func);
char *luaI_getlocalname (TFunc *func, int local_number, int line);
#endif

5
globals.lua Normal file
View File

@@ -0,0 +1,5 @@
k,v=nextvar(k)
while k do
print(k)
k,v=nextvar(k)
end

437
hash.c
View File

@@ -1,275 +1,172 @@
/*
** hash.c
** hash manager for lua
** Luiz Henrique de Figueiredo - 17 Aug 90
** Modified by Waldemar Celes Filho
** 12 May 93
*/
char *rcs_hash="$Id: hash.c,v 2.28 1996/02/12 18:32:40 roberto Exp roberto $";
#include <string.h>
#include <stdlib.h>
#include "mem.h"
#include "opcode.h"
#include "hash.h"
#include "inout.h"
#include "table.h"
#include "lua.h"
#define streq(s1,s2) (strcmp(s1,s2)==0)
#define strneq(s1,s2) (strcmp(s1,s2)!=0)
#define new(s) ((s *)malloc(sizeof(s)))
#define newvector(n,s) ((s *)calloc(n,sizeof(s)))
#define nhash(t) ((t)->nhash)
#define nuse(t) ((t)->nuse)
#define markarray(t) ((t)->mark)
#define nodevector(t) ((t)->node)
#define node(t,i) (&(t)->node[i])
#define ref(n) (&(n)->ref)
#define val(n) (&(n)->val)
#define nodelist(t) ((t)->list)
#define list(t,i) ((t)->list[i])
#define ref_tag(n) (tag(&(n)->ref))
#define ref_nvalue(n) (nvalue(&(n)->ref))
#define ref_svalue(n) (svalue(&(n)->ref))
#define REHASH_LIMIT 0.70 /* avoid more than this % full */
static Hash *listhead = NULL;
/* hash dimensions values */
static Word dimensions[] =
{3, 5, 7, 11, 23, 47, 97, 197, 397, 797, 1597, 3203, 6421,
12853, 25717, 51437, 65521, 0}; /* 65521 == last prime < MAX_WORD */
Word luaI_redimension (Word nhash)
static int head (Hash *t, Object *ref) /* hash function */
{
Word i;
for (i=0; dimensions[i]!=0; i++)
if (tag(ref) == T_NUMBER) return (((int)nvalue(ref))%nhash(t));
else if (tag(ref) == T_STRING)
{
if (dimensions[i] > nhash)
return dimensions[i];
}
lua_error("table overflow");
return 0; /* to avoid warnings */
}
static Word hashindex (Hash *t, Object *ref) /* hash function */
{
switch (tag(ref))
{
case LUA_T_NIL:
lua_error ("unexpected type to index table");
return -1; /* UNREACHEABLE */
case LUA_T_NUMBER:
return (((Word)nvalue(ref))%nhash(t));
case LUA_T_STRING:
return (Word)((tsvalue(ref)->hash)%nhash(t)); /* make it a valid index */
case LUA_T_FUNCTION:
return (((IntPoint)ref->value.tf)%nhash(t));
case LUA_T_CFUNCTION:
return (((IntPoint)fvalue(ref))%nhash(t));
case LUA_T_ARRAY:
return (((IntPoint)avalue(ref))%nhash(t));
default: /* user data */
return (((IntPoint)uvalue(ref))%nhash(t));
}
}
int lua_equalObj (Object *t1, Object *t2)
{
if (tag(t1) != tag(t2)) return 0;
switch (tag(t1))
int h;
char *name = svalue(ref);
for (h=0; *name!=0; name++) /* interpret name as binary number */
{
case LUA_T_NIL: return 1;
case LUA_T_NUMBER: return nvalue(t1) == nvalue(t2);
case LUA_T_STRING: return svalue(t1) == svalue(t2);
case LUA_T_ARRAY: return avalue(t1) == avalue(t2);
case LUA_T_FUNCTION: return t1->value.tf == t2->value.tf;
case LUA_T_CFUNCTION: return fvalue(t1) == fvalue(t2);
default: return uvalue(t1) == uvalue(t2);
h <<= 8;
h += (unsigned char) *name; /* avoid sign extension */
h %= nhash(t); /* make it a valid index */
}
}
static Word present (Hash *t, Object *ref)
{
Word h = hashindex(t, ref);
while (tag(ref(node(t, h))) != LUA_T_NIL)
{
if (lua_equalObj(ref, ref(node(t, h))))
return h;
h = (h+1) % nhash(t);
return h;
}
else
{
lua_reportbug ("unexpected type to index table");
return -1;
}
return h;
}
/*
** Alloc a vector node
*/
static Node *hashnodecreate (Word nhash)
static Node *present(Hash *t, Object *ref, int h)
{
Word i;
Node *v = newvector (nhash, Node);
for (i=0; i<nhash; i++)
tag(ref(&v[i])) = LUA_T_NIL;
return v;
Node *n=NULL, *p;
if (tag(ref) == T_NUMBER)
{
for (p=NULL,n=list(t,h); n!=NULL; p=n, n=n->next)
if (ref_tag(n) == T_NUMBER && nvalue(ref) == ref_nvalue(n)) break;
}
else if (tag(ref) == T_STRING)
{
for (p=NULL,n=list(t,h); n!=NULL; p=n, n=n->next)
if (ref_tag(n) == T_STRING && streq(svalue(ref),ref_svalue(n))) break;
}
if (n==NULL) /* name not present */
return NULL;
#if 0
if (p!=NULL) /* name present but not first */
{
p->next=n->next; /* move-to-front self-organization */
n->next=list(t,h);
list(t,h)=n;
}
#endif
return n;
}
static void freelist (Node *n)
{
while (n)
{
Node *next = n->next;
free (n);
n = next;
}
}
/*
** Create a new hash. Return the hash pointer or NULL on error.
*/
static Hash *hashcreate (Word nhash)
Hash *lua_hashcreate (unsigned int nhash)
{
Hash *t = new(Hash);
nhash = luaI_redimension((Word)((float)nhash/REHASH_LIMIT));
nodevector(t) = hashnodecreate(nhash);
Hash *t = new (Hash);
if (t == NULL)
{
lua_error ("not enough memory");
return NULL;
}
nhash(t) = nhash;
nuse(t) = 0;
markarray(t) = 0;
nodelist(t) = newvector (nhash, Node*);
if (nodelist(t) == NULL)
{
lua_error ("not enough memory");
return NULL;
}
return t;
}
/*
** Delete a hash
*/
static void hashdelete (Hash *t)
void lua_hashdelete (Hash *h)
{
luaI_free (nodevector(t));
luaI_free(t);
int i;
for (i=0; i<nhash(h); i++)
freelist (list(h,i));
free (nodelist(h));
free(h);
}
/*
** If the hash node is present, return its pointer, otherwise create a new
** node for the given reference and also return its pointer.
** On error, return NULL.
*/
Object *lua_hashdefine (Hash *t, Object *ref)
{
int h;
Node *n;
h = head (t, ref);
if (h < 0) return NULL;
n = present(t, ref, h);
if (n == NULL)
{
n = new(Node);
if (n == NULL)
{
lua_error ("not enough memory");
return NULL;
}
n->ref = *ref;
tag(&n->val) = T_NIL;
n->next = list(t,h); /* link node to head of list */
list(t,h) = n;
}
return (&n->val);
}
/*
** Mark a hash and check its elements
*/
void lua_hashmark (Hash *h)
{
if (markarray(h) == 0)
{
Word i;
markarray(h) = 1;
for (i=0; i<nhash(h); i++)
{
Node *n = node(h,i);
if (tag(ref(n)) != LUA_T_NIL)
{
lua_markobject(&n->ref);
lua_markobject(&n->val);
}
}
}
}
static void call_fallbacks (void)
{
Hash *curr_array;
Object t;
tag(&t) = LUA_T_ARRAY;
for (curr_array = listhead; curr_array; curr_array = curr_array->next)
if (markarray(curr_array) != 1)
{
avalue(&t) = curr_array;
luaI_gcFB(&t);
}
tag(&t) = LUA_T_NIL;
luaI_gcFB(&t); /* end of list */
}
int i;
/*
** Garbage collection to arrays
** Delete all unmarked arrays.
*/
Long lua_hashcollector (void)
{
Hash *curr_array = listhead, *prev = NULL;
Long counter = 0;
call_fallbacks();
while (curr_array != NULL)
markarray(h) = 1;
for (i=0; i<nhash(h); i++)
{
Hash *next = curr_array->next;
if (markarray(curr_array) != 1)
Node *n;
for (n = list(h,i); n != NULL; n = n->next)
{
if (prev == NULL) listhead = next;
else prev->next = next;
hashdelete(curr_array);
++counter;
lua_markobject (&n->ref);
lua_markobject (&n->val);
}
else
{
markarray(curr_array) = 0;
prev = curr_array;
}
curr_array = next;
}
return counter;
}
/*
** Create a new array
** This function inserts the new array in the array list. It also
** executes garbage collection if the number of arrays created
** exceed a pre-defined range.
*/
Hash *lua_createarray (Word nhash)
{
Hash *array;
lua_pack();
array = hashcreate(nhash);
array->next = listhead;
listhead = array;
return array;
}
/*
** Re-hash
*/
static void rehash (Hash *t)
{
Word i;
Word nold = nhash(t);
Node *vold = nodevector(t);
nhash(t) = luaI_redimension(nhash(t));
nodevector(t) = hashnodecreate(nhash(t));
for (i=0; i<nold; i++)
{
Node *n = vold+i;
if (tag(ref(n)) != LUA_T_NIL && tag(val(n)) != LUA_T_NIL)
*node(t, present(t, ref(n))) = *n; /* copy old node to new hahs */
}
luaI_free(vold);
}
/*
** If the hash node is present, return its pointer, otherwise return
** null.
*/
Object *lua_hashget (Hash *t, Object *ref)
{
Word h = present(t, ref);
if (tag(ref(node(t, h))) != LUA_T_NIL) return val(node(t, h));
else return NULL;
}
/*
** If the hash node is present, return its pointer, otherwise create a new
** node for the given reference and also return its pointer.
*/
Object *lua_hashdefine (Hash *t, Object *ref)
{
Word h;
Node *n;
h = present(t, ref);
n = node(t, h);
if (tag(ref(n)) == LUA_T_NIL)
{
nuse(t)++;
if ((float)nuse(t) > (float)nhash(t)*REHASH_LIMIT)
{
rehash(t);
h = present(t, ref);
n = node(t, h);
}
*ref(n) = *ref;
tag(val(n)) = LUA_T_NIL;
}
return (val(n));
}
@@ -279,44 +176,84 @@ Object *lua_hashdefine (Hash *t, Object *ref)
** in the hash.
** This function pushs the element value and its reference to the stack.
*/
static void hashnext (Hash *t, Word i)
#include "lua.h"
static void firstnode (Hash *a, int h)
{
if (i >= nhash(t))
{
lua_pushnil(); lua_pushnil();
return;
}
while (tag(ref(node(t,i))) == LUA_T_NIL || tag(val(node(t,i))) == LUA_T_NIL)
{
if (++i >= nhash(t))
if (h < nhash(a))
{
int i;
for (i=h; i<nhash(a); i++)
{
lua_pushnil(); lua_pushnil();
return;
if (list(a,i) != NULL && tag(&list(a,i)->val) != T_NIL)
{
lua_pushobject (&list(a,i)->ref);
lua_pushobject (&list(a,i)->val);
return;
}
}
}
luaI_pushobject(ref(node(t,i)));
luaI_pushobject(val(node(t,i)));
lua_pushnil();
lua_pushnil();
}
void lua_next (void)
{
Hash *t;
lua_Object o = lua_getparam(1);
lua_Object r = lua_getparam(2);
if (o == LUA_NOOBJECT || r == LUA_NOOBJECT)
lua_error ("too few arguments to function `next'");
if (lua_getparam(3) != LUA_NOOBJECT)
lua_error ("too many arguments to function `next'");
if (!lua_istable(o))
lua_error ("first argument of function `next' is not a table");
t = avalue(luaI_Address(o));
if (lua_isnil(r))
Hash *a;
Object *o = lua_getparam (1);
Object *r = lua_getparam (2);
if (o == NULL || r == NULL)
{ lua_error ("too few arguments to function `next'"); return; }
if (lua_getparam (3) != NULL)
{ lua_error ("too many arguments to function `next'"); return; }
if (tag(o) != T_ARRAY)
{ lua_error ("first argument of function `next' is not a table"); return; }
a = avalue(o);
if (tag(r) == T_NIL)
{
hashnext(t, 0);
firstnode (a, 0);
return;
}
else
{
Word h = present (t, luaI_Address(r));
hashnext(t, h+1);
int h = head (a, r);
if (h >= 0)
{
Node *n = list(a,h);
while (n)
{
if (memcmp(&n->ref,r,sizeof(Object)) == 0)
{
if (n->next == NULL)
{
firstnode (a, h+1);
return;
}
else if (tag(&n->next->val) != T_NIL)
{
lua_pushobject (&n->next->ref);
lua_pushobject (&n->next->val);
return;
}
else
{
Node *next = n->next->next;
while (next != NULL && tag(&next->val) == T_NIL) next = next->next;
if (next == NULL)
{
firstnode (a, h+1);
return;
}
else
{
lua_pushobject (&next->ref);
lua_pushobject (&next->val);
}
return;
}
}
n = n->next;
}
if (n == NULL)
lua_error ("error in function 'next': reference not found");
}
}
}

25
hash.h
View File

@@ -1,38 +1,35 @@
/*
** hash.h
** hash manager for lua
** $Id: hash.h,v 2.10 1996/02/12 18:32:40 roberto Exp roberto $
** Luiz Henrique de Figueiredo - 17 Aug 90
** Modified by Waldemar Celes Filho
** 26 Apr 93
*/
#ifndef hash_h
#define hash_h
#include "types.h"
#include "opcode.h"
typedef struct node
{
Object ref;
Object val;
struct node *next;
} Node;
typedef struct Hash
{
struct Hash *next;
char mark;
Word nhash;
Word nuse;
Node *node;
unsigned int nhash;
Node **list;
} Hash;
#define markarray(t) ((t)->mark)
int lua_equalObj (Object *t1, Object *t2);
Word luaI_redimension (Word nhash);
Hash *lua_createarray (Word nhash);
void lua_hashmark (Hash *h);
Long lua_hashcollector (void);
Object *lua_hashget (Hash *t, Object *ref);
Hash *lua_hashcreate (unsigned int nhash);
void lua_hashdelete (Hash *h);
Object *lua_hashdefine (Hash *t, Object *ref);
void lua_hashmark (Hash *h);
void lua_next (void);
#endif

288
inout.c
View File

@@ -2,36 +2,59 @@
** inout.c
** Provide function to realise the input/output function and debugger
** facilities.
** Also provides some predefined lua functions.
**
** Waldemar Celes Filho
** TeCGraf - PUC-Rio
** 11 May 93
*/
char *rcs_inout="$Id: inout.c,v 2.35 1996/03/19 16:50:24 roberto Exp roberto $";
#include <stdio.h>
#include <string.h>
#include "lex.h"
#include "opcode.h"
#include "hash.h"
#include "inout.h"
#include "table.h"
#include "tree.h"
#include "lua.h"
#include "mem.h"
/* Exported variables */
Word lua_linenumber;
char *lua_parsedfile;
int lua_linenumber;
int lua_debug;
int lua_debugline;
/* Internal variables */
#ifndef MAXFUNCSTACK
#define MAXFUNCSTACK 32
#endif
static struct { int file; int function; } funcstack[MAXFUNCSTACK];
static int nfuncstack=0;
static FILE *fp;
static char *st;
static void (*usererror) (char *s);
/*
** Function to set user function to handle errors.
*/
void lua_errorfunction (void (*fn) (char *s))
{
usererror = fn;
}
/*
** Function to get the next character from the input file
*/
static int fileinput (void)
{
return fgetc (fp);
int c = fgetc (fp);
return (c == EOF ? 0 : c);
}
/*
** Function to unget the next character from to input file
*/
static void fileunput (int c)
{
ungetc (c, fp);
}
/*
@@ -39,28 +62,31 @@ static int fileinput (void)
*/
static int stringinput (void)
{
return *st++;
st++;
return (*(st-1));
}
/*
** Function to unget the next character from to input string
*/
static void stringunput (int c)
{
st--;
}
/*
** Function to open a file to be input unit.
** Return the file.
** Return 0 on success or 1 on error.
*/
FILE *lua_openfile (char *fn)
int lua_openfile (char *fn)
{
lua_setinput (fileinput);
if (fn == NULL)
{
fp = stdin;
fn = "(stdin)";
}
else
fp = fopen (fn, "r");
if (fp == NULL)
return NULL;
lua_linenumber = 1;
lua_parsedfile = luaI_createfixedstring(fn)->str;
return fp;
lua_setinput (fileinput);
lua_setunput (fileunput);
fp = fopen (fn, "r");
if (fp == NULL) return 1;
if (lua_addfile (fn)) return 1;
return 0;
}
/*
@@ -68,7 +94,7 @@ FILE *lua_openfile (char *fn)
*/
void lua_closefile (void)
{
if (fp != NULL && fp != stdin)
if (fp != NULL)
{
fclose (fp);
fp = NULL;
@@ -78,169 +104,85 @@ void lua_closefile (void)
/*
** Function to open a string to be input unit
*/
void lua_openstring (char *s)
int lua_openstring (char *s)
{
lua_setinput (stringinput);
st = s;
lua_linenumber = 1;
lua_parsedfile = luaI_createfixedstring("(string)")->str;
lua_setinput (stringinput);
lua_setunput (stringunput);
st = s;
{
char sn[64];
sprintf (sn, "String: %10.10s...", s);
if (lua_addfile (sn)) return 1;
}
return 0;
}
/*
** Function to close an opened string
** Call user function to handle error messages, if registred. Or report error
** using standard function (fprintf).
*/
void lua_closestring (void)
void lua_error (char *s)
{
}
/*
** Internal function: do a string
*/
void lua_internaldostring (void)
{
lua_Object obj = lua_getparam (1);
if (lua_isstring(obj) && !lua_dostring(lua_getstring(obj)))
lua_pushnumber(1);
else
lua_pushnil();
if (usererror != NULL) usererror (s);
else fprintf (stderr, "lua: %s\n", s);
}
/*
** Internal function: do a file
** Called to execute SETFUNCTION opcode, this function pushs a function into
** function stack. Return 0 on success or 1 on error.
*/
void lua_internaldofile (void)
int lua_pushfunction (int file, int function)
{
lua_Object obj = lua_getparam (1);
char *fname = NULL;
if (lua_isstring(obj))
fname = lua_getstring(obj);
else if (obj != LUA_NOOBJECT)
lua_error("invalid argument to function `dofile'");
/* else fname = NULL */
if (!lua_dofile(fname))
lua_pushnumber(1);
else
lua_pushnil();
if (nfuncstack >= MAXFUNCSTACK-1)
{
lua_error ("function stack overflow");
return 1;
}
funcstack[nfuncstack].file = file;
funcstack[nfuncstack].function = function;
nfuncstack++;
return 0;
}
static char *tostring (lua_Object obj)
/*
** Called to execute RESET opcode, this function pops a function from
** function stack.
*/
void lua_popfunction (void)
{
char *buff = luaI_buffer(20);
if (lua_isstring(obj)) /* get strings and numbers */
return lua_getstring(obj);
else switch(lua_type(obj))
nfuncstack--;
}
/*
** Report bug building a message and sending it to lua_error function.
*/
void lua_reportbug (char *s)
{
char msg[1024];
strcpy (msg, s);
if (lua_debugline != 0)
{
int i;
if (nfuncstack > 0)
{
case LUA_T_FUNCTION:
sprintf(buff, "function: %p", (luaI_Address(obj))->value.tf);
break;
case LUA_T_CFUNCTION:
sprintf(buff, "cfunction: %p", lua_getcfunction(obj));
break;
case LUA_T_ARRAY:
sprintf(buff, "table: %p", avalue(luaI_Address(obj)));
break;
case LUA_T_NIL:
sprintf(buff, "nil");
break;
default:
sprintf(buff, "userdata: %p", lua_getuserdata(obj));
break;
sprintf (strchr(msg,0),
"\n\tin statement begining at line %d in function \"%s\" of file \"%s\"",
lua_debugline, s_name(funcstack[nfuncstack-1].function),
lua_file[funcstack[nfuncstack-1].file]);
sprintf (strchr(msg,0), "\n\tactive stack\n");
for (i=nfuncstack-1; i>=0; i--)
sprintf (strchr(msg,0), "\t-> function \"%s\" of file \"%s\"\n",
s_name(funcstack[i].function),
lua_file[funcstack[i].file]);
}
return buff;
}
void luaI_tostring (void)
{
lua_pushstring(tostring(lua_getparam(1)));
}
void luaI_print (void)
{
int i = 1;
lua_Object obj;
while ((obj = lua_getparam(i++)) != LUA_NOOBJECT)
printf("%s\n", tostring(obj));
}
/*
** Internal function: return an object type.
*/
void luaI_type (void)
{
lua_Object o = lua_getparam(1);
int t;
if (o == LUA_NOOBJECT)
lua_error("no parameter to function 'type'");
t = lua_type(o);
switch (t)
{
case LUA_T_NIL :
lua_pushliteral("nil");
break;
case LUA_T_NUMBER :
lua_pushliteral("number");
break;
case LUA_T_STRING :
lua_pushliteral("string");
break;
case LUA_T_ARRAY :
lua_pushliteral("table");
break;
case LUA_T_FUNCTION :
case LUA_T_CFUNCTION :
lua_pushliteral("function");
break;
default :
lua_pushliteral("userdata");
break;
}
lua_pushnumber(t);
}
/*
** Internal function: convert an object to a number
*/
void lua_obj2number (void)
{
lua_Object o = lua_getparam(1);
if (lua_isnumber(o))
lua_pushnumber(lua_getnumber(o));
else
lua_pushnil();
{
sprintf (strchr(msg,0),
"\n\tin statement begining at line %d of file \"%s\"",
lua_debugline, lua_filename());
}
}
lua_error (msg);
}
void luaI_error (void)
{
char *s = lua_getstring(lua_getparam(1));
if (s == NULL) s = "(no message)";
lua_error(s);
}
void luaI_assert (void)
{
lua_Object p = lua_getparam(1);
if (p == LUA_NOOBJECT || lua_isnil(p))
lua_error("assertion failed!");
}
void luaI_setglobal (void)
{
lua_Object name = lua_getparam(1);
lua_Object value = lua_getparam(2);
if (!lua_isstring(name))
lua_error("incorrect argument to function `setglobal'");
lua_pushobject(value);
lua_storeglobal(lua_getstring(name));
lua_pushobject(value); /* return given value */
}
void luaI_getglobal (void)
{
lua_Object name = lua_getparam(1);
if (!lua_isstring(name))
lua_error("incorrect argument to function `getglobal'");
lua_pushobject(lua_getglobal(lua_getstring(name)));
}

35
inout.h
View File

@@ -1,33 +1,24 @@
/*
** $Id: inout.h,v 1.14 1996/03/15 13:13:13 roberto Exp roberto $
** inout.h
**
** Waldemar Celes Filho
** TeCGraf - PUC-Rio
** 11 May 93
*/
#ifndef inout_h
#define inout_h
#include "types.h"
#include <stdio.h>
extern int lua_linenumber;
extern int lua_debug;
extern int lua_debugline;
extern Word lua_linenumber;
extern Word lua_debugline;
extern char *lua_parsedfile;
FILE *lua_openfile (char *fn);
int lua_openfile (char *fn);
void lua_closefile (void);
void lua_openstring (char *s);
void lua_closestring (void);
void lua_internaldofile (void);
void lua_internaldostring (void);
void luaI_tostring (void);
void luaI_print (void);
void luaI_type (void);
void lua_obj2number (void);
void luaI_error (void);
void luaI_assert (void);
void luaI_setglobal (void);
void luaI_getglobal (void);
int lua_openstring (char *s);
int lua_pushfunction (int file, int function);
void lua_popfunction (void);
void lua_reportbug (char *s);
#endif

753
iolib.c
View File

@@ -1,62 +1,23 @@
/*
** iolib.c
** Input/output library to LUA
**
** Waldemar Celes Filho
** TeCGraf - PUC-Rio
** 19 May 93
*/
char *rcs_iolib="$Id: iolib.c,v 1.39 1996/03/14 15:55:18 roberto Exp roberto $";
#include <stdlib.h>
#include <string.h>
#include <stdio.h>
#include <ctype.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <string.h>
#include <time.h>
#include <stdlib.h>
#include <errno.h>
#include "lua.h"
#include "luadebug.h"
#include "lualib.h"
static FILE *in=stdin, *out=stdout;
#ifdef POPEN
FILE *popen();
int pclose();
#else
#define popen(x,y) NULL /* that is, popen always fails */
#define pclose(x) (-1)
#ifdef __GNUC__
#include <floatingpoint.h>
#endif
#include "lua.h"
static void pushresult (int i)
{
if (i)
lua_pushnumber (1);
else
lua_pushnil();
}
static void closeread (void)
{
if (in != stdin)
{
if (pclose(in) == -1)
fclose(in);
in = stdin;
}
}
static void closewrite (void)
{
if (out != stdout)
{
if (pclose(out) == -1)
fclose(out);
out = stdout;
}
}
static FILE *in=stdin, *out=stdout;
/*
** Open a file to read.
@@ -64,27 +25,41 @@ static void closewrite (void)
** status = readfrom (filename)
** where:
** status = 1 -> success
** status = nil -> error
** status = 0 -> error
*/
static void io_readfrom (void)
{
if (lua_getparam (1) == LUA_NOOBJECT)
{ /* restore standart input */
closeread();
lua_Object o = lua_getparam (1);
if (o == NULL) /* restore standart input */
{
if (in != stdin)
{
fclose (in);
in = stdin;
}
lua_pushnumber (1);
}
else
{
char *s = lua_check_string(1, "readfrom");
FILE *fp = (*s == '|') ? popen(s+1, "r") : fopen(s, "r");
if (!lua_isstring (o))
{
lua_error ("incorrect argument to function 'readfrom`");
lua_pushnumber (0);
}
else
{
FILE *fp = fopen (lua_getstring(o),"r");
if (fp == NULL)
lua_pushnil();
{
lua_pushnumber (0);
}
else
{
closeread();
if (in != stdin) fclose (in);
in = fp;
lua_pushnumber (1);
}
}
}
}
@@ -95,96 +70,45 @@ static void io_readfrom (void)
** status = writeto (filename)
** where:
** status = 1 -> success
** status = nil -> error
** status = 0 -> error
*/
static void io_writeto (void)
{
if (lua_getparam (1) == LUA_NOOBJECT) /* restore standart output */
lua_Object o = lua_getparam (1);
if (o == NULL) /* restore standart output */
{
closewrite();
if (out != stdout)
{
fclose (out);
out = stdout;
}
lua_pushnumber (1);
}
else
{
char *s = lua_check_string(1, "writeto");
FILE *fp = (*s == '|') ? popen(s+1,"w") : fopen(s,"w");
if (!lua_isstring (o))
{
lua_error ("incorrect argument to function 'writeto`");
lua_pushnumber (0);
}
else
{
FILE *fp = fopen (lua_getstring(o),"w");
if (fp == NULL)
lua_pushnil();
{
lua_pushnumber (0);
}
else
{
closewrite();
if (out != stdout) fclose (out);
out = fp;
lua_pushnumber (1);
}
}
}
}
/*
** Open a file to write appended.
** LUA interface:
** status = appendto (filename)
** where:
** status = 2 -> success (already exist)
** status = 1 -> success (new file)
** status = nil -> error
*/
static void io_appendto (void)
{
char *s = lua_check_string(1, "appendto");
struct stat st;
int r = (stat(s, &st) == -1) ? 1 : 2;
FILE *fp = fopen (s, "a");
if (fp == NULL)
lua_pushnil();
else
{
if (out != stdout) fclose (out);
out = fp;
lua_pushnumber (r);
}
}
static char getformat (char *f, int *just, int *m, int *n)
{
int t;
switch (*f++)
{
case 'q': case 'Q':
case 's': case 'S':
case 'i': case 'I':
t = tolower(*(f-1));
break;
case 'f': case 'F': case 'g': case 'G': case 'e': case 'E':
t = 'f';
break;
default:
t = 0; /* to avoid compiler warnings */
lua_arg_error("read/write (format)");
}
*just = (*f == '<' || *f == '>' || *f == '|') ? *f++ : '>';
if (isdigit(*f))
{
*m = 0;
while (isdigit(*f))
*m = *m*10 + (*f++ - '0');
}
else
*m = -1;
if (*f == '.')
{
f++; /* skip point */
*n = 0;
while (isdigit(*f))
*n = *n*10 + (*f++ - '0');
}
else
*n = -1;
return t;
}
/*
** Read a variable. On error put nil on stack.
** LUA interface:
@@ -199,130 +123,116 @@ static char getformat (char *f, int *just, int *m, int *n)
** Estes especificadores podem vir seguidos de numero que representa
** o numero de campos a serem lidos.
*/
static int read_until_char (int del)
{
int c;
while((c = fgetc(in)) != EOF && c != del)
luaI_addchar(c);
return c;
}
static void read_until_blank (void)
{
int c;
while((c = fgetc(in)) != EOF && !isspace(c))
luaI_addchar(c);
if (c != EOF) ungetc(c,in);
}
static void read_m (int m)
{
int c;
while (m-- && (c = fgetc(in)) != EOF)
luaI_addchar(c);
}
static void read_free (void)
static void io_read (void)
{
lua_Object o = lua_getparam (1);
if (o == NULL) /* free format */
{
int c;
char s[256];
while (isspace(c=fgetc(in)))
;
if (c == EOF)
if (c == '\"')
{
lua_pushnil();
if (fscanf (in, "%[^\"]\"", s) != 1)
{
lua_pushnil ();
return;
}
}
if (c == '\"' || c == '\'')
{ /* string */
c = read_until_char(c);
if (c == EOF)
lua_pushnil();
else
lua_pushstring(luaI_addchar(0));
else if (c == '\'')
{
if (fscanf (in, "%[^\']\'", s) != 1)
{
lua_pushnil ();
return;
}
}
else
{
double d;
char dummy;
char *s;
luaI_addchar(c);
read_until_blank();
s = luaI_addchar(0);
if (sscanf(s, "%lf %c", &d, &dummy) == 1)
lua_pushnumber(d);
else
lua_pushstring(s);
char *ptr;
double d;
ungetc (c, in);
if (fscanf (in, "%s", s) != 1)
{
lua_pushnil ();
return;
}
d = strtod (s, &ptr);
if (!(*ptr))
{
lua_pushnumber (d);
return;
}
}
}
static void io_read (void)
{
lua_Object o = lua_getparam (1);
luaI_addchar(0); /* initialize buffer */
if (o == LUA_NOOBJECT) /* free format */
read_free();
else /* formatted */
lua_pushstring (s);
return;
}
else /* formatted */
{
char *e = lua_getstring(o);
char t;
int m=0;
while (isspace(*e)) e++;
t = *e++;
while (isdigit(*e))
m = m*10 + (*e++ - '0');
if (m > 0)
{
int m, dummy1, dummy2;
switch (getformat(lua_check_string(1, "read"), &dummy1, &m, &dummy2))
char f[80];
char s[256];
sprintf (f, "%%%ds", m);
fscanf (in, f, s);
switch (tolower(t))
{
case 'i':
{
case 's':
{
char *s;
if (m < 0)
read_until_blank();
else
read_m(m);
s = luaI_addchar(0);
if ((m >= 0 && strlen(s) == m) || (m < 0 && strlen(s) > 0))
lua_pushstring(s);
else
lua_pushnil();
break;
}
case 'i': /* can read as float, since it makes no difference to Lua */
case 'f':
{
double d;
int result;
if (m < 0)
result = fscanf(in, "%lf", &d);
else
{
read_m(m);
result = sscanf(luaI_addchar(0), "%lf", &d);
}
if (result == 1)
lua_pushnumber(d);
else
lua_pushnil();
break;
}
default:
lua_arg_error("read (format)");
long int l;
sscanf (s, "%ld", &l);
lua_pushnumber(l);
}
break;
case 'f': case 'g': case 'e':
{
float f;
sscanf (s, "%f", &f);
lua_pushnumber(f);
}
break;
default:
lua_pushstring(s);
break;
}
}
}
/*
** Read characters until a given one. The delimiter is not read.
*/
static void io_readuntil (void)
{
int del, c;
lua_Object p = lua_getparam(1);
luaI_addchar(0); /* initialize buffer */
if (p == LUA_NOOBJECT || lua_isnil(p))
del = EOF;
else
del = *lua_check_string(1, "readuntil");
c = read_until_char(del);
if (c != EOF) ungetc(c,in);
lua_pushstring(luaI_addchar(0));
else
{
switch (tolower(t))
{
case 'i':
{
long int l;
fscanf (in, "%ld", &l);
lua_pushnumber(l);
}
break;
case 'f': case 'g': case 'e':
{
float f;
fscanf (in, "%f", &f);
lua_pushnumber(f);
}
break;
default:
{
char s[256];
fscanf (in, "%s", s);
lua_pushstring(s);
}
break;
}
}
}
}
@@ -352,252 +262,131 @@ static void io_readuntil (void)
** inteiros -> numero minimo de digitos
** string -> nao se aplica
*/
static int write_fill (int n, int c)
static char *buildformat (char *e, lua_Object o)
{
while (n--)
if (fputc(c, out) == EOF)
return 0;
return 1;
static char buffer[512];
static char f[80];
char *string = &buffer[255];
char t, j='r';
int m=0, n=0, l;
while (isspace(*e)) e++;
t = *e++;
if (*e == '<' || *e == '|' || *e == '>') j = *e++;
while (isdigit(*e))
m = m*10 + (*e++ - '0');
e++; /* skip point */
while (isdigit(*e))
n = n*10 + (*e++ - '0');
sprintf(f,"%%");
if (j == '<' || j == '|') sprintf(strchr(f,0),"-");
if (m != 0) sprintf(strchr(f,0),"%d", m);
if (n != 0) sprintf(strchr(f,0),".%d", n);
sprintf(strchr(f,0), "%c", t);
switch (tolower(t))
{
case 'i': t = 'i';
sprintf (string, f, (long int)lua_getnumber(o));
break;
case 'f': case 'g': case 'e': t = 'f';
sprintf (string, f, (float)lua_getnumber(o));
break;
case 's': t = 's';
sprintf (string, f, lua_getstring(o));
break;
default: return "";
}
l = strlen(string);
if (m!=0 && l>m)
{
int i;
for (i=0; i<m; i++)
string[i] = '*';
string[i] = 0;
}
else if (m!=0 && j=='|')
{
int i=l-1;
while (isspace(string[i])) i--;
string -= (m-i) / 2;
i=0;
while (string[i]==0) string[i++] = ' ';
string[l] = 0;
}
return string;
}
static int write_string (char *s, int just, int m)
{
int status;
int l = strlen(s);
int pre; /* number of blanks before string */
if (m < 0) m = l;
else if (l > m)
{
write_fill(m, '*');
return 0;
}
pre = (just == '<') ? 0 : (just == '>') ? m-l : (m-l)/2;
status = write_fill(pre, ' ');
status = status && fprintf(out, "%s", s) >= 0;
status = status && write_fill(m-(l+pre), ' ');
return status;
}
static int write_quoted (int just, int m)
{
luaI_addchar(0);
luaI_addquoted(lua_check_string(1, "write"));
return write_string(luaI_addchar(0), just, m);
}
static int write_float (int just, int m, int n)
{
char buffer[100];
lua_Object p = lua_getparam(1);
float number;
if (!lua_isnumber(p)) return 0;
number = lua_getnumber(p);
if (n >= 0)
sprintf(buffer, "%.*f", n, number);
else
sprintf(buffer, "%g", number);
return write_string(buffer, just, m);
}
static int write_int (int just, int m, int n)
{
char buffer[100];
lua_Object p = lua_getparam(1);
int number;
if (!lua_isnumber(p)) return 0;
number = (int)lua_getnumber(p);
if (n >= 0)
sprintf(buffer, "%.*d", n, number);
else
sprintf(buffer, "%d", number);
return write_string(buffer, just, m);
}
static void io_write (void)
{
int status = 0;
if (lua_getparam (2) == LUA_NOOBJECT) /* free format */
{
lua_Object o1 = lua_getparam(1);
int t = lua_type(o1);
if (t == LUA_T_NUMBER)
status = fprintf (out, "%g", lua_getnumber(o1)) >= 0;
else if (t == LUA_T_STRING)
status = fprintf (out, "%s", lua_getstring(o1)) >= 0;
lua_Object o1 = lua_getparam (1);
lua_Object o2 = lua_getparam (2);
if (o1 == NULL) /* new line */
{
fprintf (out, "\n");
lua_pushnumber(1);
}
else if (o2 == NULL) /* free format */
{
int status=0;
if (lua_isnumber(o1))
status = fprintf (out, "%g", lua_getnumber(o1));
else if (lua_isstring(o1))
status = fprintf (out, "%s", lua_getstring(o1));
lua_pushnumber(status);
}
else /* formated */
{
if (!lua_isstring(o2))
{
lua_error ("incorrect format to function `write'");
lua_pushnumber(0);
return;
}
else /* formated */
{
int just, m, n;
switch (getformat(lua_check_string(2, "write"), &just, &m, &n))
{
case 's':
{
lua_Object p = lua_getparam(1);
if (lua_isstring(p))
status = write_string(lua_getstring(p), just, m);
else
status = 0;
break;
}
case 'q':
status = write_quoted(just, m);
break;
case 'f':
status = write_float(just, m, n);
break;
case 'i':
status = write_int(just, m, n);
break;
}
}
if (status)
lua_pushnumber(status);
lua_pushnumber(fprintf (out, "%s", buildformat(lua_getstring(o2),o1)));
}
}
/*
** Execute a executable program using "sustem".
** On error put 0 on stack, otherwise put 1.
*/
void io_execute (void)
{
lua_Object o = lua_getparam (1);
if (o == NULL || !lua_isstring (o))
{
lua_error ("incorrect argument to function 'execute`");
lua_pushnumber (0);
}
else
{
system(lua_getstring(o));
lua_pushnumber (1);
}
return;
}
/*
** Remove a file.
** On error put 0 on stack, otherwise put 1.
*/
void io_remove (void)
{
lua_Object o = lua_getparam (1);
if (o == NULL || !lua_isstring (o))
{
lua_error ("incorrect argument to function 'execute`");
lua_pushnumber (0);
}
else
{
if (remove(lua_getstring(o)) == 0)
lua_pushnumber (1);
else
lua_pushnil();
lua_pushnumber (0);
}
return;
}
/*
** Execute a executable program using "system".
** Return the result of execution.
*/
static void io_execute (void)
{
lua_pushnumber(system(lua_check_string(1, "execute")));
}
/*
** Remove a file. On error return nil.
*/
static void io_remove (void)
{
pushresult(remove(lua_check_string(1, "remove")) == 0);
}
static void io_rename (void)
{
char *f1 = lua_check_string(1, "rename");
char *f2 = lua_check_string(2, "rename");
pushresult(rename(f1, f2) == 0);
}
static void io_tmpname (void)
{
lua_pushstring(tmpnam(NULL));
}
static void io_errorno (void)
{
/* lua_pushstring(strerror(errno));*/
}
/*
** To get a environment variable
*/
static void io_getenv (void)
{
char *env = getenv(lua_check_string(1, "getenv"));
lua_pushstring(env); /* if NULL push nil */
}
/*
** Return user formatted time stamp
*/
static void io_date (void)
{
time_t t;
struct tm *tm;
char *s;
char b[BUFSIZ];
if (lua_getparam(1) == LUA_NOOBJECT)
s = "%c";
else
s = lua_check_string(1, "date");
time(&t); tm = localtime(&t);
if (strftime(b,sizeof(b),s,tm))
lua_pushstring(b);
else
lua_error("invalid `date' format");
}
/*
** To exit
*/
static void io_exit (void)
{
lua_Object o = lua_getparam(1);
if (lua_isstring(o))
fprintf(stderr, "%s\n", lua_getstring(o));
exit(1);
}
/*
** To debug a lua program. Start a dialog with the user, interpreting
lua commands until an 'cont'.
*/
static void io_debug (void)
{
while (1)
{
char buffer[250];
fprintf(stderr, "lua_debug> ");
if (fgets(buffer, sizeof(buffer), stdin) == 0) return;
if (strcmp(buffer, "cont") == 0) return;
lua_dostring(buffer);
}
}
void lua_printstack (FILE *f)
{
int level = 0;
lua_Object func;
fprintf(f, "Active Stack:\n");
while ((func = lua_stackedfunction(level++)) != LUA_NOOBJECT)
{
char *name;
int currentline;
fprintf(f, "\t");
switch (*lua_getobjname(func, &name))
{
case 'g':
fprintf(f, "function %s", name);
break;
case 'f':
fprintf(f, "`%s' fallback", name);
break;
default:
{
char *filename;
int linedefined;
lua_funcinfo(func, &filename, &linedefined);
if (linedefined == 0)
fprintf(f, "main of %s", filename);
else if (linedefined < 0)
fprintf(f, "%s", filename);
else
fprintf(f, "function (%s:%d)", filename, linedefined);
}
}
if ((currentline = lua_currentline(func)) > 0)
fprintf(f, " at line %d", currentline);
fprintf(f, "\n");
}
}
static void errorfb (void)
{
lua_Object o = lua_getparam(1);
char *s = lua_isstring(o) ? lua_getstring(o) : "(no messsage)";
fprintf(stderr, "lua: %s\n", s);
lua_printstack(stderr);
}
/*
** Open io library
*/
@@ -605,20 +394,8 @@ void iolib_open (void)
{
lua_register ("readfrom", io_readfrom);
lua_register ("writeto", io_writeto);
lua_register ("appendto", io_appendto);
lua_register ("read", io_read);
lua_register ("readuntil",io_readuntil);
lua_register ("write", io_write);
lua_register ("execute", io_execute);
lua_register ("remove", io_remove);
lua_register ("rename", io_rename);
lua_register ("tmpname", io_tmpname);
lua_register ("ioerror", io_errorno);
lua_register ("getenv", io_getenv);
lua_register ("date", io_date);
lua_register ("exit", io_exit);
lua_register ("debug", io_debug);
lua_register ("print_stack", errorfb);
lua_setfallback("error", errorfb);
}

326
lex.c
View File

@@ -1,326 +0,0 @@
char *rcs_lex = "$Id: lex.c,v 2.31 1996/03/19 16:50:24 roberto Exp roberto $";
#include <ctype.h>
#include <string.h>
#include "mem.h"
#include "tree.h"
#include "table.h"
#include "lex.h"
#include "inout.h"
#include "luadebug.h"
#include "parser.h"
#define MINBUFF 260
#define next() { current = input(); }
#define save(x) { *yytextLast++ = (x); }
#define save_and_next() { save(current); next(); }
static int current;
static char *yytext = NULL;
static int textsize = 0;
static char *yytextLast;
static Input input;
void lua_setinput (Input fn)
{
current = ' ';
input = fn;
if (yytext == NULL)
{
textsize = MINBUFF;
yytext = newvector(textsize, char);
}
}
char *lua_lasttext (void)
{
*yytextLast = 0;
return yytext;
}
static struct
{
char *name;
int token;
} reserved [] = {
{"and", AND},
{"do", DO},
{"else", ELSE},
{"elseif", ELSEIF},
{"end", END},
{"function", FUNCTION},
{"if", IF},
{"local", LOCAL},
{"nil", NIL},
{"not", NOT},
{"or", OR},
{"repeat", REPEAT},
{"return", RETURN},
{"then", THEN},
{"until", UNTIL},
{"while", WHILE} };
#define RESERVEDSIZE (sizeof(reserved)/sizeof(reserved[0]))
void luaI_addReserved (void)
{
int i;
for (i=0; i<RESERVEDSIZE; i++)
{
TaggedString *ts = lua_createstring(reserved[i].name);
ts->marked = reserved[i].token; /* reserved word (always > 255) */
}
}
static void growtext (void)
{
int size = yytextLast - yytext;
textsize = growvector(&yytext, textsize, char, lexEM, MAX_WORD);
yytextLast = yytext + size;
}
static int read_long_string (void)
{
int cont = 0;
int spaceleft = textsize - (yytextLast - yytext);
while (1)
{
if (spaceleft <= 2) /* may read more than 1 char in one cicle */
{
growtext();
spaceleft = textsize - (yytextLast - yytext);
}
switch (current)
{
case EOF:
case 0:
return WRONGTOKEN;
case '[':
save_and_next(); spaceleft--;
if (current == '[')
{
cont++;
save_and_next(); spaceleft--;
}
continue;
case ']':
save_and_next(); spaceleft--;
if (current == ']')
{
if (cont == 0) return STRING;
cont--;
save_and_next(); spaceleft--;
}
continue;
case '\n':
lua_linenumber++; /* goes through */
default:
save_and_next(); spaceleft--;
}
}
}
int luaY_lex (void)
{
double a;
static int linelasttoken = 0;
if (lua_debug)
luaI_codedebugline(linelasttoken);
linelasttoken = lua_linenumber;
while (1)
{
yytextLast = yytext;
switch (current)
{
case EOF:
case 0:
return 0;
case '\n': linelasttoken = ++lua_linenumber;
case ' ':
case '\r': /* CR: to avoid problems with DOS/Windows */
case '\t':
next();
continue;
case '$':
next();
while (isalnum(current) || current == '_')
save_and_next();
*yytextLast = 0;
if (strcmp(yytext, "debug") == 0)
{
luaY_lval.vInt = 1;
return DEBUG;
}
else if (strcmp(yytext, "nodebug") == 0)
{
luaY_lval.vInt = 0;
return DEBUG;
}
return WRONGTOKEN;
case '-':
save_and_next();
if (current != '-') return '-';
do { next(); } while (current != '\n' && current != 0);
continue;
case '[':
save_and_next();
if (current != '[') return '[';
else
{
save_and_next(); /* pass the second '[' */
if (read_long_string() == WRONGTOKEN)
return WRONGTOKEN;
save_and_next(); /* pass the second ']' */
*(yytextLast-2) = 0; /* erases ']]' */
luaY_lval.vWord = luaI_findconstantbyname(yytext+2);
return STRING;
}
case '=':
save_and_next();
if (current != '=') return '=';
else { save_and_next(); return EQ; }
case '<':
save_and_next();
if (current != '=') return '<';
else { save_and_next(); return LE; }
case '>':
save_and_next();
if (current != '=') return '>';
else { save_and_next(); return GE; }
case '~':
save_and_next();
if (current != '=') return '~';
else { save_and_next(); return NE; }
case '"':
case '\'':
{
int del = current;
int spaceleft = textsize - (yytextLast - yytext);
next(); /* skip the delimiter */
while (current != del)
{
if (spaceleft <= 2) /* may read more than 1 char in one cicle */
{
growtext();
spaceleft = textsize - (yytextLast - yytext);
}
spaceleft--;
switch (current)
{
case EOF:
case 0:
case '\n':
return WRONGTOKEN;
case '\\':
next(); /* do not save the '\' */
switch (current)
{
case 'n': save('\n'); next(); break;
case 't': save('\t'); next(); break;
case 'r': save('\r'); next(); break;
case '\n': lua_linenumber++; /* goes through */
default : save(current); next(); break;
}
break;
default:
save_and_next();
}
}
next(); /* skip the delimiter */
*yytextLast = 0;
luaY_lval.vWord = luaI_findconstantbyname(yytext);
return STRING;
}
case 'a': case 'b': case 'c': case 'd': case 'e':
case 'f': case 'g': case 'h': case 'i': case 'j':
case 'k': case 'l': case 'm': case 'n': case 'o':
case 'p': case 'q': case 'r': case 's': case 't':
case 'u': case 'v': case 'w': case 'x': case 'y':
case 'z':
case 'A': case 'B': case 'C': case 'D': case 'E':
case 'F': case 'G': case 'H': case 'I': case 'J':
case 'K': case 'L': case 'M': case 'N': case 'O':
case 'P': case 'Q': case 'R': case 'S': case 'T':
case 'U': case 'V': case 'W': case 'X': case 'Y':
case 'Z':
case '_':
{
TaggedString *ts;
do { save_and_next(); } while (isalnum(current) || current == '_');
*yytextLast = 0;
ts = lua_createstring(yytext);
if (ts->marked > 2)
return ts->marked; /* reserved word */
luaY_lval.pTStr = ts;
ts->marked = 2; /* avoid GC */
return NAME;
}
case '.':
save_and_next();
if (current == '.')
{
save_and_next();
return CONC;
}
else if (!isdigit(current)) return '.';
/* current is a digit: goes through to number */
a=0.0;
goto fraction;
case '0': case '1': case '2': case '3': case '4':
case '5': case '6': case '7': case '8': case '9':
a=0.0;
do { a=10.0*a+(current-'0'); save_and_next(); } while (isdigit(current));
if (current == '.') save_and_next();
fraction:
{ double da=0.1;
while (isdigit(current))
{a+=(current-'0')*da; da/=10.0; save_and_next()};
if (current == 'e' || current == 'E')
{
int e=0;
int neg;
double ea;
save_and_next();
neg=(current=='-');
if (current == '+' || current == '-') save_and_next();
if (!isdigit(current)) return WRONGTOKEN;
do { e=10.0*e+(current-'0'); save_and_next(); } while (isdigit(current));
for (ea=neg?0.1:10.0; e>0; e>>=1)
{
if (e & 1) a*=ea;
ea*=ea;
}
}
luaY_lval.vFloat = a;
return NUMBER;
}
default: /* also end of file */
{
save_and_next();
return yytext[0];
}
}
}
}

19
lex.h
View File

@@ -1,19 +0,0 @@
/*
** lex.h
** TecCGraf - PUC-Rio
** $Id: lex.h,v 1.1 1996/02/13 17:30:39 roberto Exp roberto $
*/
#ifndef lex_h
#define lex_h
typedef int (*Input) (void);
void lua_setinput (Input fn);
char *lua_lasttext (void);
int luaY_lex (void);
void luaI_addReserved (void);
#endif

923
lex_yy.c Normal file
View File

@@ -0,0 +1,923 @@
# 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);
}

88
lua.c
View File

@@ -1,92 +1,54 @@
/*
** lua.c
** Linguagem para Usuarios de Aplicacao
** TeCGraf - PUC-Rio
** 28 Apr 93
*/
char *rcs_lua="$Id: lua.c,v 1.7 1995/10/31 17:05:35 roberto Exp roberto $";
#include <stdio.h>
#include <string.h>
#include "lua.h"
#include "lualib.h"
static int lua_argc;
static char **lua_argv;
/*
** although this function is POSIX, there is no standard header file that
** defines it
*/
int isatty (int fd);
/*
%F Allow Lua code to access argv strings.
%i Receive from Lua the argument number (starting with 1).
%o Return to Lua the argument, or nil if it does not exist.
*/
static void lua_getargv (void)
void test (void)
{
lua_Object lo = lua_getparam(1);
if (!lua_isnumber(lo))
lua_pushnil();
else
{
int n = (int)lua_getnumber(lo);
if (n < 1 || n > lua_argc) lua_pushnil();
else lua_pushstring(lua_argv[n]);
}
lua_pushobject(lua_getparam(1));
lua_call ("c", 1);
}
static void manual_input (void)
static void callfunc (void)
{
if (isatty(fileno(stdin)))
{
char buffer[250];
while (fgets(buffer, sizeof(buffer), stdin) != 0)
lua_dostring(buffer);
}
else
lua_dofile(NULL); /* executes stdin as a file */
lua_Object obj = lua_getparam (1);
if (lua_isstring(obj)) lua_call(lua_getstring(obj),0);
}
static void execstr (void)
{
lua_Object obj = lua_getparam (1);
if (lua_isstring(obj)) lua_dostring(lua_getstring(obj));
}
int main (int argc, char *argv[])
void main (int argc, char *argv[])
{
int i;
int result = 0;
if (argc < 2)
{
puts ("usage: lua filename [functionnames]");
return;
}
lua_register ("callfunc", callfunc);
lua_register ("execstr", execstr);
lua_register ("test", test);
iolib_open ();
strlib_open ();
mathlib_open ();
lua_register("argv", lua_getargv);
if (argc < 2)
manual_input();
else
lua_dofile (argv[1]);
for (i=2; i<argc; i++)
{
for (i=1; i<argc; i++)
if (strcmp(argv[i], "--") == 0)
{
lua_argc = argc-i-1;
lua_argv = argv+i;
break;
}
for (i=1; i<argc; i++)
{
if (strcmp(argv[i], "--") == 0)
break;
else if (strcmp(argv[i], "-") == 0)
manual_input();
else if (strcmp(argv[i], "-v") == 0)
printf("%s %s\n(written by %s)\n\n",
LUA_VERSION, LUA_COPYRIGHT, LUA_AUTHORS);
else
result = lua_dofile (argv[i]);
}
lua_call (argv[i],0);
}
return result;
}

121
lua.h
View File

@@ -2,108 +2,53 @@
** LUA - Linguagem para Usuarios de Aplicacao
** Grupo de Tecnologia em Computacao Grafica
** TeCGraf - PUC-Rio
** $Id: lua.h,v 3.24 1996/03/19 22:28:37 roberto Exp roberto $
** 19 May 93
*/
#ifndef lua_h
#define lua_h
#define LUA_VERSION "Lua 2.4 (beta)"
#define LUA_COPYRIGHT "Copyright (C) 1994, 1995 TeCGraf"
#define LUA_AUTHORS "W. Celes, R. Ierusalimschy & L. H. de Figueiredo"
/* Private Part */
typedef enum
{
LUA_T_NIL = -1,
LUA_T_NUMBER = -2,
LUA_T_STRING = -3,
LUA_T_ARRAY = -4,
LUA_T_FUNCTION = -5,
LUA_T_CFUNCTION= -6,
LUA_T_MARK = -7,
LUA_T_CMARK = -8,
LUA_T_LINE = -9,
LUA_T_USERDATA = 0
} lua_Type;
/* Public Part */
#define LUA_NOOBJECT 0
typedef void (*lua_CFunction) (void);
typedef unsigned int lua_Object;
lua_Object lua_setfallback (char *name, lua_CFunction fallback);
void lua_error (char *s);
int lua_dofile (char *filename);
int lua_dostring (char *string);
int lua_callfunction (lua_Object function);
int lua_call (char *funcname);
void lua_beginblock (void);
void lua_endblock (void);
lua_Object lua_getparam (int number);
#define lua_getresult(_) lua_getparam(_)
#define lua_isnil(_) (lua_type(_)==LUA_T_NIL)
#define lua_istable(_) (lua_type(_)==LUA_T_ARRAY)
#define lua_isuserdata(_) (lua_type(_)>=LUA_T_USERDATA)
#define lua_iscfunction(_) (lua_type(_)==LUA_T_CFUNCTION)
int lua_isnumber (lua_Object object);
int lua_isstring (lua_Object object);
int lua_isfunction (lua_Object object);
float lua_getnumber (lua_Object object);
char *lua_getstring (lua_Object object);
lua_CFunction lua_getcfunction (lua_Object object);
void *lua_getuserdata (lua_Object object);
void lua_pushnil (void);
void lua_pushnumber (float n);
void lua_pushstring (char *s);
void lua_pushcfunction (lua_CFunction fn);
void lua_pushusertag (void *u, int tag);
void lua_pushobject (lua_Object object);
lua_Object lua_getglobal (char *name);
void lua_storeglobal (char *name);
void lua_storesubscript (void);
lua_Object lua_getsubscript (void);
int lua_type (lua_Object object);
int lua_lock (void);
lua_Object lua_getlocked (int ref);
void lua_pushlocked (int ref);
void lua_unlock (int ref);
lua_Object lua_createtable (void);
/* some useful macros */
#define lua_lockobject(o) (lua_pushobject(o), lua_lock())
typedef struct Object *lua_Object;
#define lua_register(n,f) (lua_pushcfunction(f), lua_storeglobal(n))
#define lua_pushuserdata(u) lua_pushusertag(u, LUA_T_USERDATA)
void lua_errorfunction (void (*fn) (char *s));
void lua_error (char *s);
int lua_dofile (char *filename);
int lua_dostring (char *string);
int lua_call (char *functionname, int nparam);
/* for compatibility with old versions. Avoid using these macros */
lua_Object lua_getparam (int number);
float lua_getnumber (lua_Object object);
char *lua_getstring (lua_Object object);
char *lua_copystring (lua_Object object);
lua_CFunction lua_getcfunction (lua_Object object);
void *lua_getuserdata (lua_Object object);
lua_Object lua_getfield (lua_Object object, char *field);
lua_Object lua_getindexed (lua_Object object, float index);
lua_Object lua_getglobal (char *name);
#define lua_pushliteral(o) lua_pushstring(o)
lua_Object lua_pop (void);
#define lua_getindexed(o,n) (lua_pushobject(o), lua_pushnumber(n), lua_getsubscript())
#define lua_getfield(o,f) (lua_pushobject(o), lua_pushliteral(f), lua_getsubscript())
int lua_pushnil (void);
int lua_pushnumber (float n);
int lua_pushstring (char *s);
int lua_pushcfunction (lua_CFunction fn);
int lua_pushuserdata (void *u);
int lua_pushobject (lua_Object object);
#define lua_copystring(o) (strdup(lua_getstring(o)))
int lua_storeglobal (char *name);
int lua_storefield (lua_Object object, char *field);
int lua_storeindexed (lua_Object object, float index);
int lua_isnil (lua_Object object);
int lua_isnumber (lua_Object object);
int lua_isstring (lua_Object object);
int lua_istable (lua_Object object);
int lua_iscfunction (lua_Object object);
int lua_isuserdata (lua_Object object);
#endif

788
lua.stx
View File

@@ -1,788 +0,0 @@
%{
char *rcs_luastx = "$Id: lua.stx,v 3.35 1996/03/08 12:02:37 roberto Exp roberto $";
#include <stdio.h>
#include <stdlib.h>
#include "luadebug.h"
#include "mem.h"
#include "lex.h"
#include "opcode.h"
#include "hash.h"
#include "inout.h"
#include "tree.h"
#include "table.h"
#include "lua.h"
#include "func.h"
/* to avoid warnings generated by yacc */
int yyparse (void);
#define malloc luaI_malloc
#define realloc luaI_realloc
#define free luaI_free
#ifndef LISTING
#define LISTING 0
#endif
#ifndef CODE_BLOCK
#define CODE_BLOCK 256
#endif
static int maxcode;
static int maxmain;
static int maxcurr;
static Byte *funcCode = NULL;
static Byte **initcode;
static Byte *basepc;
static int maincode;
static int pc;
#define MAXVAR 32
static Long varbuffer[MAXVAR]; /* variables in an assignment list;
it's long to store negative Word values */
static int nvarbuffer=0; /* number of variables at a list */
#define MAXLOCALS 32
static TaggedString *localvar[MAXLOCALS]; /* store local variable names */
static int nlocalvar=0; /* number of local variables */
#define MAXFIELDS FIELDS_PER_FLUSH*2
static Word fields[MAXFIELDS]; /* fieldnames to be flushed */
static int nfields=0;
int lua_debug = 0;
/* Internal functions */
static void yyerror (char *s)
{
char msg[256];
char *token = lua_lasttext();
if (token[0] == 0)
token = "<eof>";
sprintf (msg,"%s; last token read: \"%s\" at line %d in file `%s'",
s, token, lua_linenumber, lua_parsedfile);
lua_error (msg);
}
static void code_byte (Byte c)
{
if (pc>maxcurr-2) /* 1 byte free to code HALT of main code */
maxcurr = growvector(&basepc, maxcurr, Byte, codeEM, MAX_INT);
basepc[pc++] = c;
}
static void code_word (Word n)
{
CodeWord code;
code.w = n;
code_byte(code.m.c1);
code_byte(code.m.c2);
}
static void code_float (float n)
{
CodeFloat code;
code.f = n;
code_byte(code.m.c1);
code_byte(code.m.c2);
code_byte(code.m.c3);
code_byte(code.m.c4);
}
static void code_code (TFunc *tf)
{
CodeCode code;
code.tf = tf;
code_byte(code.m.c1);
code_byte(code.m.c2);
code_byte(code.m.c3);
code_byte(code.m.c4);
}
static void code_word_at (Byte *p, int n)
{
CodeWord code;
if ((Word)n != n)
yyerror("block too big");
code.w = (Word)n;
*p++ = code.m.c1;
*p++ = code.m.c2;
}
static void push_field (Word name)
{
if (nfields < MAXFIELDS)
fields[nfields++] = name;
else
yyerror ("too many fields in nested constructors");
}
static void flush_record (int n)
{
int i;
if (n == 0) return;
code_byte(STORERECORD);
code_byte(n);
for (i=0; i<n; i++)
code_word(fields[--nfields]);
}
static void flush_list (int m, int n)
{
if (n == 0) return;
if (m == 0)
code_byte(STORELIST0);
else
if (m < 255)
{
code_byte(STORELIST);
code_byte(m);
}
else
yyerror ("list constructor too long");
code_byte(n);
}
static void store_localvar (TaggedString *name, int n)
{
if (nlocalvar+n < MAXLOCALS)
localvar[nlocalvar+n] = name;
else
yyerror ("too many local variables");
if (lua_debug)
luaI_registerlocalvar(name, lua_linenumber);
}
static void add_localvar (TaggedString *name)
{
store_localvar(name, 0);
nlocalvar++;
}
static void add_varbuffer (Long var)
{
if (nvarbuffer < MAXVAR)
varbuffer[nvarbuffer++] = var;
else
yyerror ("variable buffer overflow");
}
static void code_number (float f)
{
Word i = (Word)f;
if (f == (float)i) /* f has an (short) integer value */
{
if (i <= 2) code_byte(PUSH0 + i);
else if (i <= 255)
{
code_byte(PUSHBYTE);
code_byte(i);
}
else
{
code_byte(PUSHWORD);
code_word(i);
}
}
else
{
code_byte(PUSHFLOAT);
code_float(f);
}
}
/*
** Search a local name and if find return its index. If do not find return -1
*/
static int lua_localname (TaggedString *n)
{
int i;
for (i=nlocalvar-1; i >= 0; i--)
if (n == localvar[i]) return i; /* local var */
return -1; /* global var */
}
/*
** Push a variable given a number. If number is positive, push global variable
** indexed by (number -1). If negative, push local indexed by ABS(number)-1.
** Otherwise, if zero, push indexed variable (record).
*/
static void lua_pushvar (Long number)
{
if (number > 0) /* global var */
{
code_byte(PUSHGLOBAL);
code_word(number-1);
}
else if (number < 0) /* local var */
{
number = (-number) - 1;
if (number < 10) code_byte(PUSHLOCAL0 + number);
else
{
code_byte(PUSHLOCAL);
code_byte(number);
}
}
else
{
code_byte(PUSHINDEXED);
}
}
static void lua_codeadjust (int n)
{
if (n+nlocalvar == 0)
code_byte(ADJUST0);
else
{
code_byte(ADJUST);
code_byte(n+nlocalvar);
}
}
static void change2main (void)
{
/* (re)store main values */
pc=maincode; basepc=*initcode; maxcurr=maxmain;
nlocalvar=0;
}
static void savemain (void)
{
/* save main values */
maincode=pc; *initcode=basepc; maxmain=maxcurr;
}
static void init_func (void)
{
if (funcCode == NULL) /* first function */
{
funcCode = newvector(CODE_BLOCK, Byte);
maxcode = CODE_BLOCK;
}
savemain(); /* save main values */
/* set func values */
pc=0; basepc=funcCode; maxcurr=maxcode;
nlocalvar = 0;
luaI_codedebugline(lua_linenumber);
}
static void codereturn (void)
{
if (nlocalvar == 0)
code_byte(RETCODE0);
else
{
code_byte(RETCODE);
code_byte(nlocalvar);
}
}
void luaI_codedebugline (int line)
{
static int lastline = 0;
if (lua_debug && line != lastline)
{
code_byte(SETLINE);
code_word(line);
lastline = line;
}
}
static int adjust_functioncall (Long exp, int i)
{
if (exp <= 0)
return -exp; /* exp is -list length */
else
{
int temp = basepc[exp];
basepc[exp] = i;
return temp+i;
}
}
static void adjust_mult_assign (int vars, Long exps, int temps)
{
if (exps > 0)
{ /* must correct function call */
int diff = vars - basepc[exps];
if (diff >= 0)
adjust_functioncall(exps, diff);
else
{
adjust_functioncall(exps, 0);
lua_codeadjust(temps);
}
}
else if (vars != -exps)
lua_codeadjust(temps);
}
static void storesinglevar (Long v)
{
if (v > 0) /* global var */
{
code_byte(STOREGLOBAL);
code_word(v-1);
}
else if (v < 0) /* local var */
{
int number = (-v) - 1;
if (number < 10) code_byte(STORELOCAL0 + number);
else
{
code_byte(STORELOCAL);
code_byte(number);
}
}
else
code_byte(STOREINDEXED0);
}
static void lua_codestore (int i)
{
if (varbuffer[i] != 0) /* global or local var */
storesinglevar(varbuffer[i]);
else /* indexed var */
{
int j;
int upper=0; /* number of indexed variables upper */
int param; /* number of itens until indexed expression */
for (j=i+1; j <nvarbuffer; j++)
if (varbuffer[j] == 0) upper++;
param = upper*2 + i;
if (param == 0)
code_byte(STOREINDEXED0);
else
{
code_byte(STOREINDEXED);
code_byte(param);
}
}
}
static void codeIf (Long thenAdd, Long elseAdd)
{
Long elseinit = elseAdd+sizeof(Word)+1;
if (pc == elseinit) /* no else */
{
pc -= sizeof(Word)+1;
elseinit = pc;
}
else
{
basepc[elseAdd] = JMP;
code_word_at(basepc+elseAdd+1, pc-elseinit);
}
basepc[thenAdd] = IFFJMP;
code_word_at(basepc+thenAdd+1,elseinit-(thenAdd+sizeof(Word)+1));
}
/*
** Parse LUA code.
*/
void lua_parse (TFunc *tf)
{
initcode = &(tf->code);
*initcode = newvector(CODE_BLOCK, Byte);
maincode = 0;
maxmain = CODE_BLOCK;
change2main();
if (yyparse ()) lua_error("parse error");
savemain();
(*initcode)[maincode++] = RETCODE0;
tf->size = maincode;
#if LISTING
{ static void PrintCode (Byte *c, Byte *end);
PrintCode(*initcode,*initcode+maincode); }
#endif
}
%}
%union
{
int vInt;
float vFloat;
char *pChar;
Word vWord;
Long vLong;
TFunc *pFunc;
TaggedString *pTStr;
}
%start functionlist
%token WRONGTOKEN
%token NIL
%token IF THEN ELSE ELSEIF WHILE DO REPEAT UNTIL END
%token RETURN
%token LOCAL
%token FUNCTION
%token <vFloat> NUMBER
%token <vWord> STRING
%token <pTStr> NAME
%token <vInt> DEBUG
%type <vLong> PrepJump
%type <vLong> exprlist, exprlist1 /* if > 0, points to function return
counter (which has list length); if <= 0, -list lenght */
%type <vLong> functioncall, expr /* if != 0, points to function return
counter */
%type <vInt> varlist1, funcParams, funcvalue
%type <vInt> fieldlist, localdeclist, decinit
%type <vInt> ffieldlist, ffieldlist1, semicolonpart
%type <vInt> lfieldlist, lfieldlist1
%type <vInt> parlist
%type <vLong> var, singlevar, funcname
%type <pFunc> body
%left AND OR
%left EQ NE '>' '<' LE GE
%left CONC
%left '+' '-'
%left '*' '/'
%left UNARY NOT
%right '^'
%% /* beginning of rules section */
functionlist : /* empty */
| functionlist globalstat
| functionlist function
;
globalstat : stat sc
| setdebug
;
function : FUNCTION funcname body
{
code_byte(PUSHFUNCTION);
code_code($3);
storesinglevar($2);
}
;
funcname : var { $$ =$1; init_func(); }
| varexp ':' NAME
{
code_byte(PUSHSTRING);
code_word(luaI_findconstant($3));
$$ = 0; /* indexed variable */
init_func();
add_localvar(luaI_createfixedstring("self"));
}
;
body : '(' parlist ')' block END
{
codereturn();
$$ = new(TFunc);
luaI_initTFunc($$);
$$->size = pc;
$$->code = newvector(pc, Byte);
$$->fileName = lua_parsedfile;
$$->lineDefined = $2;
memcpy($$->code, basepc, pc*sizeof(Byte));
if (lua_debug)
luaI_closelocalvars($$);
/* save func values */
funcCode = basepc; maxcode=maxcurr;
#if LISTING
PrintCode(funcCode,funcCode+pc);
#endif
change2main(); /* change back to main code */
}
;
statlist : /* empty */
| statlist stat sc
;
sc : /* empty */ | ';' ;
stat : IF expr1 THEN PrepJump block PrepJump elsepart END
{ codeIf($4, $6); }
| WHILE {$<vLong>$=pc;} expr1 DO PrepJump block PrepJump END
{
basepc[$5] = IFFJMP;
code_word_at(basepc+$5+1, pc - ($5 + sizeof(Word)+1));
basepc[$7] = UPJMP;
code_word_at(basepc+$7+1, pc - ($<vLong>2));
}
| REPEAT {$<vLong>$=pc;} block UNTIL expr1 PrepJump
{
basepc[$6] = IFFUPJMP;
code_word_at(basepc+$6+1, pc - ($<vLong>2));
}
| varlist1 '=' exprlist1
{
{
int i;
adjust_mult_assign(nvarbuffer, $3, $1 * 2 + nvarbuffer);
for (i=nvarbuffer-1; i>=0; i--)
lua_codestore (i);
if ($1 > 1 || ($1 == 1 && varbuffer[0] != 0))
lua_codeadjust (0);
}
}
| functioncall
| LOCAL localdeclist decinit
{ nlocalvar += $2;
adjust_mult_assign($2, $3, 0);
}
;
elsepart : /* empty */
| ELSE block
| ELSEIF expr1 THEN PrepJump block PrepJump elsepart
{ codeIf($4, $6); }
;
block : {$<vInt>$ = nlocalvar;} statlist ret
{
if (nlocalvar != $<vInt>1)
{
if (lua_debug)
for (; nlocalvar > $<vInt>1; nlocalvar--)
luaI_unregisterlocalvar(lua_linenumber);
else
nlocalvar = $<vInt>1;
lua_codeadjust (0);
}
}
;
ret : /* empty */
| RETURN exprlist sc
{
adjust_functioncall($2, MULT_RET);
codereturn();
}
;
PrepJump : /* empty */
{
$$ = pc;
code_byte(0); /* open space */
code_word (0);
}
expr1 : expr { adjust_functioncall($1, 1); }
;
expr : '(' expr ')' { $$ = $2; }
| expr1 EQ expr1 { code_byte(EQOP); $$ = 0; }
| expr1 '<' expr1 { code_byte(LTOP); $$ = 0; }
| expr1 '>' expr1 { code_byte(GTOP); $$ = 0; }
| expr1 NE expr1 { code_byte(EQOP); code_byte(NOTOP); $$ = 0; }
| expr1 LE expr1 { code_byte(LEOP); $$ = 0; }
| expr1 GE expr1 { code_byte(GEOP); $$ = 0; }
| expr1 '+' expr1 { code_byte(ADDOP); $$ = 0; }
| expr1 '-' expr1 { code_byte(SUBOP); $$ = 0; }
| expr1 '*' expr1 { code_byte(MULTOP); $$ = 0; }
| expr1 '/' expr1 { code_byte(DIVOP); $$ = 0; }
| expr1 '^' expr1 { code_byte(POWOP); $$ = 0; }
| expr1 CONC expr1 { code_byte(CONCOP); $$ = 0; }
| '-' expr1 %prec UNARY { code_byte(MINUSOP); $$ = 0;}
| table { $$ = 0; }
| varexp { $$ = 0;}
| NUMBER { code_number($1); $$ = 0; }
| STRING
{
code_byte(PUSHSTRING);
code_word($1);
$$ = 0;
}
| NIL {code_byte(PUSHNIL); $$ = 0; }
| functioncall { $$ = $1; }
| NOT expr1 { code_byte(NOTOP); $$ = 0;}
| expr1 AND PrepJump {code_byte(POP); } expr1
{
basepc[$3] = ONFJMP;
code_word_at(basepc+$3+1, pc - ($3 + sizeof(Word)+1));
$$ = 0;
}
| expr1 OR PrepJump {code_byte(POP); } expr1
{
basepc[$3] = ONTJMP;
code_word_at(basepc+$3+1, pc - ($3 + sizeof(Word)+1));
$$ = 0;
}
;
table :
{
code_byte(CREATEARRAY);
$<vLong>$ = pc; code_word(0);
}
'{' fieldlist '}'
{
code_word_at(basepc+$<vLong>1, $3);
}
;
functioncall : funcvalue funcParams
{
code_byte(CALLFUNC);
code_byte($1+$2);
$$ = pc;
code_byte(0); /* may be modified by other rules */
}
;
funcvalue : varexp { $$ = 0; }
| varexp ':' NAME
{
code_byte(PUSHSELF);
code_word(luaI_findconstant($3));
$$ = 1;
}
;
funcParams : '(' exprlist ')'
{ $$ = adjust_functioncall($2, 1); }
| table { $$ = 1; }
;
exprlist : /* empty */ { $$ = 0; }
| exprlist1 { $$ = $1; }
;
exprlist1 : expr { if ($1 != 0) $$ = $1; else $$ = -1; }
| exprlist1 ',' { $<vLong>$ = adjust_functioncall($1, 1); } expr
{
if ($4 == 0) $$ = -($<vLong>3 + 1); /* -length */
else
{
adjust_functioncall($4, $<vLong>3);
$$ = $4;
}
}
;
parlist : /* empty */ { lua_codeadjust(0); $$ = lua_linenumber; }
| parlist1 { lua_codeadjust(0); $$ = lua_linenumber; }
;
parlist1 : NAME { add_localvar($1); }
| parlist1 ',' NAME { add_localvar($3); }
;
fieldlist : lfieldlist
{ flush_list($1/FIELDS_PER_FLUSH, $1%FIELDS_PER_FLUSH); }
semicolonpart
{ $$ = $1+$3; }
| ffieldlist1 lastcomma
{ $$ = $1; flush_record($1%FIELDS_PER_FLUSH); }
;
semicolonpart : /* empty */
{ $$ = 0; }
| ';' ffieldlist
{ $$ = $2; flush_record($2%FIELDS_PER_FLUSH); }
;
lastcomma : /* empty */
| ','
;
ffieldlist : /* empty */ { $$ = 0; }
| ffieldlist1 lastcomma { $$ = $1; }
;
ffieldlist1 : ffield {$$=1;}
| ffieldlist1 ',' ffield
{
$$=$1+1;
if ($$%FIELDS_PER_FLUSH == 0) flush_record(FIELDS_PER_FLUSH);
}
;
ffield : NAME '=' expr1
{
push_field(luaI_findconstant($1));
}
;
lfieldlist : /* empty */ { $$ = 0; }
| lfieldlist1 lastcomma { $$ = $1; }
;
lfieldlist1 : expr1 {$$=1;}
| lfieldlist1 ',' expr1
{
$$=$1+1;
if ($$%FIELDS_PER_FLUSH == 0)
flush_list($$/FIELDS_PER_FLUSH - 1, FIELDS_PER_FLUSH);
}
;
varlist1 : var
{
nvarbuffer = 0;
add_varbuffer($1);
$$ = ($1 == 0) ? 1 : 0;
}
| varlist1 ',' var
{
add_varbuffer($3);
$$ = ($3 == 0) ? $1 + 1 : $1;
}
;
var : singlevar { $$ = $1; }
| varexp '[' expr1 ']'
{
$$ = 0; /* indexed variable */
}
| varexp '.' NAME
{
code_byte(PUSHSTRING);
code_word(luaI_findconstant($3));
$$ = 0; /* indexed variable */
}
;
singlevar : NAME
{
int local = lua_localname($1);
if (local == -1) /* global var */
$$ = luaI_findsymbol($1)+1; /* return positive value */
else
$$ = -(local+1); /* return negative value */
}
;
varexp : var { lua_pushvar($1); }
;
localdeclist : NAME {store_localvar($1, 0); $$ = 1;}
| localdeclist ',' NAME
{
store_localvar($3, $1);
$$ = $1+1;
}
;
decinit : /* empty */ { $$ = 0; }
| '=' exprlist1 { $$ = $2; }
;
setdebug : DEBUG { lua_debug = $1; }
;
%%

View File

@@ -1,31 +0,0 @@
/*
** LUA - Linguagem para Usuarios de Aplicacao
** Grupo de Tecnologia em Computacao Grafica
** TeCGraf - PUC-Rio
** $Id: luadebug.h,v 1.5 1996/02/08 17:03:20 roberto Exp roberto $
*/
#ifndef luadebug_h
#define luadebug_h
#include "lua.h"
typedef lua_Object lua_Function;
typedef void (*lua_LHFunction) (int line);
typedef void (*lua_CHFunction) (lua_Function func, char *file, int line);
lua_Function lua_stackedfunction (int level);
void lua_funcinfo (lua_Object func, char **filename, int *linedefined);
int lua_currentline (lua_Function func);
char *lua_getobjname (lua_Object o, char **name);
lua_Object lua_getlocal (lua_Function func, int local_number, char **name);
int lua_setlocal (lua_Function func, int local_number);
extern lua_LHFunction lua_linehook;
extern lua_CHFunction lua_callhook;
extern int lua_debug;
#endif

View File

@@ -1,8 +1,8 @@
/*
** Libraries to be used in LUA programs
** Libraries to use in LUA programs
** Grupo de Tecnologia em Computacao Grafica
** TeCGraf - PUC-Rio
** $Id: lualib.h,v 1.6 1996/02/09 19:00:23 roberto Exp roberto $
** 19 May 93
*/
#ifndef lualib_h
@@ -12,13 +12,4 @@ void iolib_open (void);
void strlib_open (void);
void mathlib_open (void);
/* auxiliar functions (private) */
void lua_arg_error(char *funcname);
char *lua_check_string (int numArg, char *funcname);
double lua_check_number (int numArg, char *funcname);
char *luaI_addchar (int c);
void luaI_addquoted (char *s);
#endif

View File

@@ -1,70 +0,0 @@
/*
** mem.c
** TecCGraf - PUC-Rio
*/
char *rcs_mem = "$Id: mem.c,v 1.10 1996/03/21 16:31:32 roberto Exp roberto $";
#include <stdlib.h>
#include <string.h>
#include <stdio.h>
#include "mem.h"
#include "lua.h"
#include "table.h"
#define mem_error() lua_error(memEM)
void luaI_free (void *block)
{
if (block)
{
*((int *)block) = -1; /* to catch errors */
free(block);
}
}
void *luaI_malloc (unsigned long size)
{
void *block = malloc((size_t)size);
if (block == NULL)
mem_error();
return block;
}
void *luaI_realloc (void *oldblock, unsigned long size)
{
void *block = oldblock ? realloc(oldblock, (size_t)size) :
malloc((size_t)size);
if (block == NULL)
mem_error();
return block;
}
int luaI_growvector (void **block, unsigned long nelems, int size,
char *errormsg, unsigned long limit)
{
if (nelems >= limit)
lua_error(errormsg);
nelems = (nelems == 0) ? 20 : nelems*2;
if (nelems > limit)
nelems = limit;
*block = luaI_realloc(*block, nelems*size);
return (int) nelems;
}
void* luaI_buffer (unsigned long size)
{
static unsigned long buffsize = 0;
static char* buffer = NULL;
if (size > buffsize)
buffer = luaI_realloc(buffer, buffsize=size);
return buffer;
}

View File

@@ -1,39 +0,0 @@
/*
** mem.c
** memory manager for lua
** $Id: mem.h,v 1.5 1996/03/21 16:31:32 roberto Exp roberto $
*/
#ifndef mem_h
#define mem_h
#ifndef NULL
#define NULL 0
#endif
/* memory error messages */
#define codeEM "code size overflow"
#define symbolEM "symbol table overflow"
#define constantEM "constant table overflow"
#define stackEM "stack size overflow"
#define lexEM "lex buffer overflow"
#define lockEM "lock table overflow"
#define tableEM "table overflow"
#define memEM "not enough memory"
void luaI_free (void *block);
void *luaI_malloc (unsigned long size);
void *luaI_realloc (void *oldblock, unsigned long size);
void *luaI_buffer (unsigned long size);
int luaI_growvector (void **block, unsigned long nelems, int size,
char *errormsg, unsigned long limit);
#define new(s) ((s *)luaI_malloc(sizeof(s)))
#define newvector(n,s) ((s *)luaI_malloc((n)*sizeof(s)))
#define growvector(old,n,s,e,l) \
(luaI_growvector((void**)old,n,sizeof(s),e,l))
#endif

View File

@@ -1,91 +0,0 @@
# $Id: makefile,v 1.21 1996/03/05 15:57:53 roberto Exp roberto $
#configuration
# define (undefine) POPEN if your system (does not) support piped I/O
CONFIG = -DPOPEN
# Compilation parameters
CC = gcc
CFLAGS = $(CONFIG) -I/usr/5include -Wall -Wmissing-prototypes -Wshadow -ansi -O2
#CC = acc
#CFLAGS = -fast -I/usr/5include
AR = ar
ARFLAGS = rvl
# Aplication modules
LUAOBJS = \
parser.o \
lex.o \
opcode.o \
hash.o \
table.o \
inout.o \
tree.o \
fallback.o \
mem.o \
func.o \
undump.o
LIBOBJS = \
iolib.o \
mathlib.o \
strlib.o
lua : lua.o lua.a lualib.a
$(CC) $(CFLAGS) -o $@ lua.o lua.a lualib.a -lm
lua.a : $(LUAOBJS)
$(AR) $(ARFLAGS) $@ $?
ranlib lua.a
lualib.a : $(LIBOBJS)
$(AR) $(ARFLAGS) $@ $?
ranlib $@
liblua.so.1.0 : lua.o
ld -o liblua.so.1.0 $(LUAOBJS)
y.tab.c y.tab.h : lua.stx
yacc++ -d lua.stx
parser.c : y.tab.c
sed -e 's/yy/luaY_/g' y.tab.c > parser.c
parser.h : y.tab.h
sed -e 's/yy/luaY_/g' y.tab.h > parser.h
clear :
rcsclean
rm -f *.o
rm -f parser.c parser.h y.tab.c y.tab.h
co lua.h lualib.h luadebug.h
% : RCS/%,v
co $@
fallback.o : fallback.c mem.h fallback.h opcode.h lua.h types.h tree.h func.h
func.o : func.c luadebug.h lua.h table.h tree.h types.h opcode.h func.h mem.h
hash.o : hash.c mem.h opcode.h lua.h types.h tree.h func.h hash.h table.h
inout.o : inout.c lex.h opcode.h lua.h types.h tree.h func.h inout.h table.h \
mem.h
iolib.o : iolib.c lua.h luadebug.h lualib.h
lex.o : lex.c mem.h tree.h types.h table.h opcode.h lua.h func.h lex.h inout.h \
luadebug.h parser.h
lua.o : lua.c lua.h lualib.h
mathlib.o : mathlib.c lualib.h lua.h
mem.o : mem.c mem.h lua.h table.h tree.h types.h opcode.h func.h
opcode.o : opcode.c luadebug.h lua.h mem.h opcode.h types.h tree.h func.h hash.h \
inout.h table.h fallback.h undump.h
parser.o : parser.c luadebug.h lua.h mem.h lex.h opcode.h types.h tree.h func.h \
hash.h inout.h table.h
strlib.o : strlib.c lua.h lualib.h
table.o : table.c mem.h opcode.h lua.h types.h tree.h func.h hash.h table.h \
inout.h fallback.h luadebug.h
tree.o : tree.c mem.h lua.h tree.h types.h lex.h hash.h opcode.h func.h table.h
undump.o : undump.c opcode.h lua.h types.h tree.h func.h mem.h table.h undump.h

2153
manual.tex

File diff suppressed because it is too large Load Diff

233
mathlib.c
View File

@@ -1,25 +1,26 @@
/*
** mathlib.c
** Mathematics library to LUA
** Mathematica library to LUA
**
** Waldemar Celes Filho
** TeCGraf - PUC-Rio
** 19 May 93
*/
char *rcs_mathlib="$Id: mathlib.c,v 1.13 1995/11/10 17:54:31 roberto Exp roberto $";
#include <stdlib.h>
#include <stdio.h> /* NULL */
#include <math.h>
#include "lualib.h"
#include "lua.h"
#ifndef PI
#define PI 3.14159265358979323846
#endif
#define TODEGREE(a) ((a)*180.0/PI)
#define TORAD(a) ((a)*PI/180.0)
static void math_abs (void)
{
double d = lua_check_number(1, "abs");
double d;
lua_Object o = lua_getparam (1);
if (o == NULL)
{ lua_error ("too few arguments to function `abs'"); return; }
if (!lua_isnumber(o))
{ lua_error ("incorrect arguments to function `abs'"); return; }
d = lua_getnumber(o);
if (d < 0) d = -d;
lua_pushnumber (d);
}
@@ -27,173 +28,188 @@ static void math_abs (void)
static void math_sin (void)
{
double d = lua_check_number(1, "sin");
lua_pushnumber (sin(TORAD(d)));
double d;
lua_Object o = lua_getparam (1);
if (o == NULL)
{ lua_error ("too few arguments to function `sin'"); return; }
if (!lua_isnumber(o))
{ lua_error ("incorrect arguments to function `sin'"); return; }
d = lua_getnumber(o);
lua_pushnumber (sin(d));
}
static void math_cos (void)
{
double d = lua_check_number(1, "cos");
lua_pushnumber (cos(TORAD(d)));
double d;
lua_Object o = lua_getparam (1);
if (o == NULL)
{ lua_error ("too few arguments to function `cos'"); return; }
if (!lua_isnumber(o))
{ lua_error ("incorrect arguments to function `cos'"); return; }
d = lua_getnumber(o);
lua_pushnumber (cos(d));
}
static void math_tan (void)
{
double d = lua_check_number(1, "tan");
lua_pushnumber (tan(TORAD(d)));
double d;
lua_Object o = lua_getparam (1);
if (o == NULL)
{ lua_error ("too few arguments to function `tan'"); return; }
if (!lua_isnumber(o))
{ lua_error ("incorrect arguments to function `tan'"); return; }
d = lua_getnumber(o);
lua_pushnumber (tan(d));
}
static void math_asin (void)
{
double d = lua_check_number(1, "asin");
lua_pushnumber (TODEGREE(asin(d)));
double d;
lua_Object o = lua_getparam (1);
if (o == NULL)
{ lua_error ("too few arguments to function `asin'"); return; }
if (!lua_isnumber(o))
{ lua_error ("incorrect arguments to function `asin'"); return; }
d = lua_getnumber(o);
lua_pushnumber (asin(d));
}
static void math_acos (void)
{
double d = lua_check_number(1, "acos");
lua_pushnumber (TODEGREE(acos(d)));
double d;
lua_Object o = lua_getparam (1);
if (o == NULL)
{ lua_error ("too few arguments to function `acos'"); return; }
if (!lua_isnumber(o))
{ lua_error ("incorrect arguments to function `acos'"); return; }
d = lua_getnumber(o);
lua_pushnumber (acos(d));
}
static void math_atan (void)
{
double d = lua_check_number(1, "atan");
lua_pushnumber (TODEGREE(atan(d)));
}
static void math_atan2 (void)
{
double d1 = lua_check_number(1, "atan2");
double d2 = lua_check_number(2, "atan2");
lua_pushnumber (TODEGREE(atan2(d1, d2)));
double d;
lua_Object o = lua_getparam (1);
if (o == NULL)
{ lua_error ("too few arguments to function `atan'"); return; }
if (!lua_isnumber(o))
{ lua_error ("incorrect arguments to function `atan'"); return; }
d = lua_getnumber(o);
lua_pushnumber (atan(d));
}
static void math_ceil (void)
{
double d = lua_check_number(1, "ceil");
double d;
lua_Object o = lua_getparam (1);
if (o == NULL)
{ lua_error ("too few arguments to function `ceil'"); return; }
if (!lua_isnumber(o))
{ lua_error ("incorrect arguments to function `ceil'"); return; }
d = lua_getnumber(o);
lua_pushnumber (ceil(d));
}
static void math_floor (void)
{
double d = lua_check_number(1, "floor");
double d;
lua_Object o = lua_getparam (1);
if (o == NULL)
{ lua_error ("too few arguments to function `floor'"); return; }
if (!lua_isnumber(o))
{ lua_error ("incorrect arguments to function `floor'"); return; }
d = lua_getnumber(o);
lua_pushnumber (floor(d));
}
static void math_mod (void)
{
int d1 = (int)lua_check_number(1, "mod");
int d2 = (int)lua_check_number(2, "mod");
int d1, d2;
lua_Object o1 = lua_getparam (1);
lua_Object o2 = lua_getparam (2);
if (!lua_isnumber(o1) || !lua_isnumber(o2))
{ lua_error ("incorrect arguments to function `mod'"); return; }
d1 = (int) lua_getnumber(o1);
d2 = (int) lua_getnumber(o2);
lua_pushnumber (d1%d2);
}
static void math_sqrt (void)
{
double d = lua_check_number(1, "sqrt");
double d;
lua_Object o = lua_getparam (1);
if (o == NULL)
{ lua_error ("too few arguments to function `sqrt'"); return; }
if (!lua_isnumber(o))
{ lua_error ("incorrect arguments to function `sqrt'"); return; }
d = lua_getnumber(o);
lua_pushnumber (sqrt(d));
}
static int old_pow;
static void math_pow (void)
{
double d1, d2;
lua_Object o1 = lua_getparam (1);
lua_Object o2 = lua_getparam (2);
lua_Object op = lua_getparam(3);
if (!lua_isnumber(o1) || !lua_isnumber(o2) || *(lua_getstring(op)) != 'p')
{
lua_Object old = lua_getlocked(old_pow);
lua_pushobject(o1);
lua_pushobject(o2);
lua_pushobject(op);
if (lua_callfunction(old) != 0)
lua_error(NULL);
}
else
{
double d1 = lua_getnumber(o1);
double d2 = lua_getnumber(o2);
lua_pushnumber (pow(d1,d2));
}
if (!lua_isnumber(o1) || !lua_isnumber(o2))
{ lua_error ("incorrect arguments to function `pow'"); return; }
d1 = lua_getnumber(o1);
d2 = lua_getnumber(o2);
lua_pushnumber (pow(d1,d2));
}
static void math_min (void)
{
int i=1;
double dmin = lua_check_number(i, "min");
while (lua_getparam(++i) != LUA_NOOBJECT)
double d, dmin;
lua_Object o;
if ((o = lua_getparam(i++)) == NULL)
{ lua_error ("too few arguments to function `min'"); return; }
if (!lua_isnumber(o))
{ lua_error ("incorrect arguments to function `min'"); return; }
dmin = lua_getnumber (o);
while ((o = lua_getparam(i++)) != NULL)
{
double d = lua_check_number(i, "min");
if (!lua_isnumber(o))
{ lua_error ("incorrect arguments to function `min'"); return; }
d = lua_getnumber (o);
if (d < dmin) dmin = d;
}
lua_pushnumber (dmin);
}
static void math_max (void)
{
int i=1;
double dmax = lua_check_number(i, "max");
while (lua_getparam(++i) != LUA_NOOBJECT)
double d, dmax;
lua_Object o;
if ((o = lua_getparam(i++)) == NULL)
{ lua_error ("too few arguments to function `max'"); return; }
if (!lua_isnumber(o))
{ lua_error ("incorrect arguments to function `max'"); return; }
dmax = lua_getnumber (o);
while ((o = lua_getparam(i++)) != NULL)
{
double d = lua_check_number(i, "max");
if (!lua_isnumber(o))
{ lua_error ("incorrect arguments to function `max'"); return; }
d = lua_getnumber (o);
if (d > dmax) dmax = d;
}
lua_pushnumber (dmax);
}
static void math_log (void)
{
double d = lua_check_number(1, "log");
lua_pushnumber (log(d));
}
static void math_log10 (void)
{
double d = lua_check_number(1, "log10");
lua_pushnumber (log10(d));
}
static void math_exp (void)
{
double d = lua_check_number(1, "exp");
lua_pushnumber (exp(d));
}
static void math_deg (void)
{
float d = lua_check_number(1, "deg");
lua_pushnumber (d*180./PI);
}
static void math_rad (void)
{
float d = lua_check_number(1, "rad");
lua_pushnumber (d/180.*PI);
}
static void math_random (void)
{
lua_pushnumber((double)(rand()%RAND_MAX) / (double)RAND_MAX);
}
static void math_randomseed (void)
{
srand(lua_check_number(1, "randomseed"));
}
/*
@@ -208,20 +224,11 @@ void mathlib_open (void)
lua_register ("asin", math_asin);
lua_register ("acos", math_acos);
lua_register ("atan", math_atan);
lua_register ("atan2", math_atan2);
lua_register ("ceil", math_ceil);
lua_register ("floor", math_floor);
lua_register ("mod", math_mod);
lua_register ("sqrt", math_sqrt);
lua_register ("pow", math_pow);
lua_register ("min", math_min);
lua_register ("max", math_max);
lua_register ("log", math_log);
lua_register ("log10", math_log10);
lua_register ("exp", math_exp);
lua_register ("deg", math_deg);
lua_register ("rad", math_rad);
lua_register ("random", math_random);
lua_register ("randomseed", math_randomseed);
old_pow = lua_lockobject(lua_setfallback("arith", math_pow));
}

View File

@@ -1,13 +0,0 @@
/*
** Math library to LUA
** TeCGraf - PUC-Rio
** $Id: $
*/
#ifndef strlib_h
void mathlib_open (void);
#endif

1916
opcode.c

File diff suppressed because it is too large Load Diff

113
opcode.h
View File

@@ -1,57 +1,56 @@
/*
** opcode.h
** TeCGraf - PUC-Rio
** $Id: opcode.h,v 3.19 1996/03/06 13:11:23 roberto Exp $
** 16 Apr 92
*/
#ifndef opcode_h
#define opcode_h
#include "lua.h"
#include "types.h"
#include "tree.h"
#include "func.h"
#ifndef STACKGAP
#define STACKGAP 128
#endif
#ifndef real
#define real float
#endif
#define FIELDS_PER_FLUSH 40
typedef unsigned char Byte;
typedef unsigned short Word;
typedef enum
{
NOP,
PUSHNIL,
PUSH0, PUSH1, PUSH2,
PUSHBYTE,
PUSHWORD,
PUSHFLOAT,
PUSHSTRING,
PUSHFUNCTION,
PUSHLOCAL0, PUSHLOCAL1, PUSHLOCAL2, PUSHLOCAL3, PUSHLOCAL4,
PUSHLOCAL5, PUSHLOCAL6, PUSHLOCAL7, PUSHLOCAL8, PUSHLOCAL9,
PUSHLOCAL,
PUSHGLOBAL,
PUSHINDEXED,
PUSHSELF,
PUSHMARK,
PUSHOBJECT,
STORELOCAL0, STORELOCAL1, STORELOCAL2, STORELOCAL3, STORELOCAL4,
STORELOCAL5, STORELOCAL6, STORELOCAL7, STORELOCAL8, STORELOCAL9,
STORELOCAL,
STOREGLOBAL,
STOREINDEXED0,
STOREINDEXED,
STORELIST0,
STORELIST,
STORERECORD,
ADJUST0,
STOREFIELD,
ADJUST,
CREATEARRAY,
EQOP,
LTOP,
LEOP,
GTOP,
GEOP,
ADDOP,
SUBOP,
MULTOP,
DIVOP,
POWOP,
CONCOP,
MINUSOP,
NOTOP,
@@ -63,81 +62,83 @@ typedef enum
IFFUPJMP,
POP,
CALLFUNC,
RETCODE0,
RETCODE,
SETLINE
HALT,
SETFUNCTION,
SETLINE,
RESET
} OpCode;
#define MULT_RET 255
typedef enum
{
T_MARK,
T_NIL,
T_NUMBER,
T_STRING,
T_ARRAY,
T_FUNCTION,
T_CFUNCTION,
T_USERDATA
} Type;
typedef void (*Cfunction) (void);
typedef int (*Input) (void);
typedef void (*Unput) (int );
typedef union
{
lua_CFunction f;
real n;
TaggedString *ts;
TFunc *tf;
Cfunction f;
real n;
char *s;
Byte *b;
struct Hash *a;
void *u;
int i;
} Value;
typedef struct Object
{
lua_Type tag;
Type tag;
Value value;
} Object;
typedef struct
{
char *name;
Object object;
} Symbol;
/* Macros to access structure members */
#define tag(o) ((o)->tag)
#define nvalue(o) ((o)->value.n)
#define svalue(o) ((o)->value.ts->str)
#define tsvalue(o) ((o)->value.ts)
#define svalue(o) ((o)->value.s)
#define bvalue(o) ((o)->value.b)
#define avalue(o) ((o)->value.a)
#define fvalue(o) ((o)->value.f)
#define uvalue(o) ((o)->value.u)
/* Macros to access symbol table */
#define s_name(i) (lua_table[i].name)
#define s_object(i) (lua_table[i].object)
#define s_tag(i) (tag(&s_object(i)))
#define s_nvalue(i) (nvalue(&s_object(i)))
#define s_svalue(i) (svalue(&s_object(i)))
#define s_bvalue(i) (bvalue(&s_object(i)))
#define s_avalue(i) (avalue(&s_object(i)))
#define s_fvalue(i) (fvalue(&s_object(i)))
#define s_uvalue(i) (uvalue(&s_object(i)))
typedef union
{
struct {Byte c1; Byte c2;} m;
Word w;
} CodeWord;
#define get_word(code,pc) {code.m.c1 = *pc++; code.m.c2 = *pc++;}
typedef union
{
struct {Byte c1; Byte c2; Byte c3; Byte c4;} m;
float f;
} CodeFloat;
#define get_float(code,pc) {code.m.c1 = *pc++; code.m.c2 = *pc++;\
code.m.c3 = *pc++; code.m.c4 = *pc++;}
typedef union
{
struct {Byte c1; Byte c2; Byte c3; Byte c4;} m;
TFunc *tf;
} CodeCode;
#define get_code(code,pc) {code.m.c1 = *pc++; code.m.c2 = *pc++;\
code.m.c3 = *pc++; code.m.c4 = *pc++;}
/* Exported functions */
void lua_parse (TFunc *tf); /* from "lua.stx" module */
void luaI_codedebugline (int line); /* from "lua.stx" module */
void lua_travstack (int (*fn)(Object *));
Object *luaI_Address (lua_Object o);
void luaI_pushobject (Object *o);
void luaI_gcFB (Object *o);
int luaI_dorun (TFunc *tf);
int lua_execute (Byte *pc);
void lua_markstack (void);
char *lua_strdup (char *l);
void lua_setinput (Input fn); /* from "lua.lex" module */
void lua_setunput (Unput fn); /* from "lua.lex" module */
char *lua_lasttext (void); /* from "lua.lex" module */
int lua_parse (void); /* from "lua.stx" module */
void lua_type (void);
void lua_obj2number (void);
void lua_print (void);
#endif

47
save.lua Normal file
View File

@@ -0,0 +1,47 @@
$debug
function savevar (n,v)
if v = nil then return end;
if type(v) = "number" then print(n.."="..v) return end
if type(v) = "string" then print(n.."='"..v.."'") return end
if type(v) = "table" then
if v.__visited__ ~= nil then
print(n .. "=" .. v.__visited__);
else
print(n.."=@()")
v.__visited__ = n;
local r,f;
r,f = next(v,nil);
while r ~= nil do
if r ~= "__visited__" then
if type(r) = 'string' then
savevar(n.."['"..r.."']",f)
else
savevar(n.."["..r.."]",f)
end
end
r,f = next(v,r)
end
end
end
end
function save ()
local n,v
n,v = nextvar(nil)
while n ~= nil do
savevar(n,v);
n,v = nextvar(n)
end
end
a = 3
x = @{a = 4, b = "name", l=@[4,5,67]}
b = @{t=5}
x.next = b
save()

56
sort.lua Normal file
View File

@@ -0,0 +1,56 @@
$debug
function quicksort(r,s)
if s<=r then return end -- caso basico da recursao
local v=x[r]
local i=r
local j=s+1
i=i+1; while x[i]<v do i=i+1 end
j=j-1; while x[j]>v do j=j-1 end
x[i],x[j]=x[j],x[i]
while j>i do -- separacao
i=i+1; while x[i]<v do i=i+1 end
j=j-1; while x[j]>v do j=j-1 end
x[i],x[j]=x[j],x[i]
end
x[i],x[j]=x[j],x[i] -- undo last swap
x[j],x[r]=x[r],x[j]
quicksort(r,j-1) -- recursao
quicksort(j+1,s)
end
function sort(a,n) -- selection sort
local i=1
while i<=n do
local m=i
local j=i+1
while j<=n do
if a[j]<a[m] then m=j end
j=j+1
end
a[i],a[m]=a[m],a[i] -- swap a[i] and a[m]
i=i+1
end
end
function main()
x=@()
n=-1
n=n+1; x[n]="a"
n=n+1; x[n]="waldemar"
n=n+1; x[n]="luiz"
n=n+1; x[n]="lula"
n=n+1; x[n]="peter"
n=n+1; x[n]="raquel"
n=n+1; x[n]="camilo"
n=n+1; x[n]="andre"
n=n+1; x[n]="marcelo"
n=n+1; x[n]="sedrez"
n=n+1; x[n]="z"
-- quicksort(1,n-1)
print(x[0]..","..x[1]..","..x[2]..","..x[3]..","..x[4]..","..x[5]..","..x[6]..","..x[7]..","..x[8]..","..x[9]..","..x[10])
sort (x, n-1)
print(x[0]..","..x[1]..","..x[2]..","..x[3]..","..x[4]..","..x[5]..","..x[6]..","..x[7]..","..x[8]..","..x[9]..","..x[10])
end

255
strlib.c
View File

@@ -1,97 +1,36 @@
/*
** strlib.c
** String library to LUA
**
** Waldemar Celes Filho
** TeCGraf - PUC-Rio
** 19 May 93
*/
char *rcs_strlib="$Id: strlib.c,v 1.21 1996/03/21 22:18:08 roberto Exp roberto $";
#include <string.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <ctype.h>
#include <limits.h>
#include "lua.h"
#include "lualib.h"
void lua_arg_error(char *funcname)
{
char buff[100];
sprintf(buff, "incorrect arguments to function `%s'", funcname);
lua_error(buff);
}
char *lua_check_string (int numArg, char *funcname)
{
lua_Object o = lua_getparam(numArg);
if (!lua_isstring(o))
lua_arg_error(funcname);
return lua_getstring(o);
}
double lua_check_number (int numArg, char *funcname)
{
lua_Object o = lua_getparam(numArg);
if (!lua_isnumber(o))
lua_arg_error(funcname);
return lua_getnumber(o);
}
static int lua_opt_number (int numArg, int def, char *funcname)
{
return (lua_getparam(numArg) == LUA_NOOBJECT) ? def :
(int)lua_check_number(numArg, funcname);
}
char *luaI_addchar (int c)
{
static char *buff = NULL;
static int max = 0;
static int n = 0;
if (n >= max)
{
if (max == 0)
{
max = 100;
buff = (char *)malloc(max);
}
else
{
max *= 2;
buff = (char *)realloc(buff, max);
}
if (buff == NULL)
lua_error("memory overflow");
}
buff[n++] = c;
if (c == 0)
n = 0; /* prepare for next string */
return buff;
}
/*
** Return the position of the first caracter of a substring into a string
** LUA interface:
** n = strfind (string, substring, init, end)
** n = strfind (string, substring)
*/
static void str_find (void)
{
char *s1 = lua_check_string(1, "strfind");
char *s2 = lua_check_string(2, "strfind");
int init = lua_opt_number(3, 1, "strfind") - 1;
char *f = (init>=0 && init<=strlen(s1)) ? strstr(s1+init,s2) : NULL;
if (f != NULL)
{
int pos = f-s1+1;
if (lua_opt_number(4, INT_MAX, "strfind") >= pos+strlen(s2)-1)
lua_pushnumber (pos);
else
lua_pushnil();
}
else
lua_pushnil();
int n;
char *s1, *s2;
lua_Object o1 = lua_getparam (1);
lua_Object o2 = lua_getparam (2);
if (!lua_isstring(o1) || !lua_isstring(o2))
{ lua_error ("incorrect arguments to function `strfind'"); return; }
s1 = lua_getstring(o1);
s2 = lua_getstring(o2);
n = strstr(s1,s2) - s1 + 1;
lua_pushnumber (n);
}
/*
@@ -101,8 +40,10 @@ static void str_find (void)
*/
static void str_len (void)
{
char *s = lua_check_string(1, "strlen");
lua_pushnumber(strlen(s));
lua_Object o = lua_getparam (1);
if (!lua_isstring(o))
{ lua_error ("incorrect arguments to function `strlen'"); return; }
lua_pushnumber(strlen(lua_getstring(o)));
}
@@ -113,18 +54,24 @@ static void str_len (void)
*/
static void str_sub (void)
{
char *s = lua_check_string(1, "strsub");
int start = (int)lua_check_number(2, "strsub");
int end = lua_opt_number(3, strlen(s), "strsub");
int start, end;
char *s;
lua_Object o1 = lua_getparam (1);
lua_Object o2 = lua_getparam (2);
lua_Object o3 = lua_getparam (3);
if (!lua_isstring(o1) || !lua_isnumber(o2) || !lua_isnumber(o3))
{ lua_error ("incorrect arguments to function `strsub'"); return; }
s = strdup (lua_getstring(o1));
start = lua_getnumber (o2);
end = lua_getnumber (o3);
if (end < start || start < 1 || end > strlen(s))
lua_pushliteral("");
lua_pushstring ("");
else
{
luaI_addchar(0);
while (start <= end)
luaI_addchar(s[start++ - 1]);
lua_pushstring (luaI_addchar(0));
s[end] = 0;
lua_pushstring (&s[start-1]);
}
free (s);
}
/*
@@ -134,12 +81,19 @@ static void str_sub (void)
*/
static void str_lower (void)
{
char *s = lua_check_string(1, "strlower");
luaI_addchar(0);
while (*s)
luaI_addchar(tolower(*s++));
lua_pushstring(luaI_addchar(0));
}
char *s, *c;
lua_Object o = lua_getparam (1);
if (!lua_isstring(o))
{ lua_error ("incorrect arguments to function `strlower'"); return; }
c = s = strdup(lua_getstring(o));
while (*c != 0)
{
*c = tolower(*c);
c++;
}
lua_pushstring(s);
free(s);
}
/*
@@ -149,104 +103,19 @@ static void str_lower (void)
*/
static void str_upper (void)
{
char *s = lua_check_string(1, "strupper");
luaI_addchar(0);
while (*s)
luaI_addchar(toupper(*s++));
lua_pushstring(luaI_addchar(0));
}
/*
** get ascii value of a character in a string
*/
static void str_ascii (void)
{
char *s = lua_check_string(1, "ascii");
int pos = lua_opt_number(2, 1, "ascii") - 1;
if (pos<0 || pos>=strlen(s))
lua_arg_error("ascii");
lua_pushnumber(s[pos]);
}
void luaI_addquoted (char *s)
{
luaI_addchar('"');
for (; *s; s++)
{
if (*s == '"' || *s == '\\' || *s == '\n')
luaI_addchar('\\');
luaI_addchar(*s);
}
luaI_addchar('"');
}
#define MAX_CONVERTION 2000
#define MAX_FORMAT 50
static void str_format (void)
{
int arg = 1;
char *strfrmt = lua_check_string(arg++, "format");
luaI_addchar(0); /* initialize */
while (*strfrmt)
{
if (*strfrmt != '%')
luaI_addchar(*strfrmt++);
else if (*++strfrmt == '%')
luaI_addchar(*strfrmt++); /* %% */
else
{ /* format item */
char form[MAX_FORMAT]; /* store the format ('%...') */
char buff[MAX_CONVERTION]; /* store the formated value */
int size = 0;
int i = 0;
form[i++] = '%';
form[i] = *strfrmt++;
while (!isalpha(form[i]))
{
if (isdigit(form[i]))
{
size = size*10 + form[i]-'0';
if (size >= MAX_CONVERTION)
lua_error("format size/precision too long in function `format'");
}
else if (form[i] == '.')
size = 0; /* re-start */
if (++i >= MAX_FORMAT)
lua_error("bad format in function `format'");
form[i] = *strfrmt++;
}
form[i+1] = 0; /* ends string */
switch (form[i])
{
case 'q':
luaI_addquoted(lua_check_string(arg++, "format"));
buff[0] = '\0'; /* addchar already done */
break;
case 's':
{
char *s = lua_check_string(arg++, "format");
if (strlen(s) >= MAX_CONVERTION)
lua_error("string argument too long in function `format'");
sprintf(buff, form, s);
break;
}
case 'c': case 'd': case 'i': case 'o':
case 'u': case 'x': case 'X':
sprintf(buff, form, (int)lua_check_number(arg++, "format"));
break;
case 'e': case 'E': case 'f': case 'g':
sprintf(buff, form, lua_check_number(arg++, "format"));
break;
default: /* also treat cases 'pnLlh' */
lua_error("invalid format option in function `format'");
}
for (i=0; buff[i]; i++) /* move formated value to result */
luaI_addchar(buff[i]);
}
}
lua_pushstring(luaI_addchar(0)); /* push the result */
}
char *s, *c;
lua_Object o = lua_getparam (1);
if (!lua_isstring(o))
{ lua_error ("incorrect arguments to function `strlower'"); return; }
c = s = strdup(lua_getstring(o));
while (*c != 0)
{
*c = toupper(*c);
c++;
}
lua_pushstring(s);
free(s);
}
/*
@@ -259,6 +128,4 @@ void strlib_open (void)
lua_register ("strsub", str_sub);
lua_register ("strlower", str_lower);
lua_register ("strupper", str_upper);
lua_register ("ascii", str_ascii);
lua_register ("format", str_format);
}

View File

@@ -1,13 +0,0 @@
/*
** String library to LUA
** TeCGraf - PUC-Rio
** $Id: $
*/
#ifndef strlib_h
void strlib_open (void);
#endif

515
table.c
View File

@@ -1,266 +1,351 @@
/*
** table.c
** Module to control static tables
** TeCGraf - PUC-Rio
** 11 May 93
*/
char *rcs_table="$Id: table.c,v 2.50 1996/03/21 16:31:32 roberto Exp roberto $";
#include <stdlib.h>
#include <string.h>
#include "mem.h"
#include "opcode.h"
#include "tree.h"
#include "hash.h"
#include "table.h"
#include "inout.h"
#include "table.h"
#include "lua.h"
#include "fallback.h"
#include "luadebug.h"
#define streq(s1,s2) (strcmp(s1,s2)==0)
#define BUFFER_BLOCK 256
#ifndef MAXSYMBOL
#define MAXSYMBOL 512
#endif
static Symbol tablebuffer[MAXSYMBOL] = {
{"type",{T_CFUNCTION,{lua_type}}},
{"tonumber",{T_CFUNCTION,{lua_obj2number}}},
{"next",{T_CFUNCTION,{lua_next}}},
{"nextvar",{T_CFUNCTION,{lua_nextvar}}},
{"print",{T_CFUNCTION,{lua_print}}}
};
Symbol *lua_table=tablebuffer;
Word lua_ntable=5;
Symbol *lua_table = NULL;
Word lua_ntable = 0;
static Long lua_maxsymbol = 0;
#ifndef MAXCONSTANT
#define MAXCONSTANT 256
#endif
static char *constantbuffer[MAXCONSTANT] = {"mark","nil","number",
"string","table",
"function","cfunction"
};
char **lua_constant = constantbuffer;
Word lua_nconstant=T_CFUNCTION+1;
TaggedString **lua_constant = NULL;
Word lua_nconstant = 0;
static Long lua_maxconstant = 0;
#ifndef MAXSTRING
#define MAXSTRING 512
#endif
static char *stringbuffer[MAXSTRING];
char **lua_string = stringbuffer;
Word lua_nstring=0;
#ifndef MAXARRAY
#define MAXARRAY 512
#endif
static Hash *arraybuffer[MAXARRAY];
Hash **lua_array = arraybuffer;
Word lua_narray=0;
#define GARBAGE_BLOCK 1024
#define MIN_GARBAGE_BLOCK (GARBAGE_BLOCK/2)
static void lua_nextvar (void);
/*
** Internal functions
*/
static struct {
char *name;
lua_CFunction func;
} int_funcs[] = {
{"assert", luaI_assert},
{"dofile", lua_internaldofile},
{"dostring", lua_internaldostring},
{"error", luaI_error},
{"getglobal", luaI_getglobal},
{"next", lua_next},
{"nextvar", lua_nextvar},
{"print", luaI_print},
{"setfallback", luaI_setfallback},
{"setglobal", luaI_setglobal},
{"tonumber", lua_obj2number},
{"tostring", luaI_tostring},
{"type", luaI_type}
};
#define INTFUNCSIZE (sizeof(int_funcs)/sizeof(int_funcs[0]))
void luaI_initsymbol (void)
{
int i;
lua_maxsymbol = BUFFER_BLOCK;
lua_table = newvector(lua_maxsymbol, Symbol);
for (i=0; i<INTFUNCSIZE; i++)
{
Word n = luaI_findsymbolbyname(int_funcs[i].name);
s_tag(n) = LUA_T_CFUNCTION; s_fvalue(n) = int_funcs[i].func;
}
}
/*
** Initialise constant table with pre-defined constants
*/
void luaI_initconstant (void)
{
lua_maxconstant = BUFFER_BLOCK;
lua_constant = newvector(lua_maxconstant, TaggedString *);
/* pre-register mem error messages, to avoid loop when error arises */
luaI_findconstantbyname(tableEM);
luaI_findconstantbyname(memEM);
}
#define MAXFILE 20
char *lua_file[MAXFILE];
int lua_nfile;
/*
** Given a name, search it at symbol table and return its index. If not
** found, allocate it.
** found, allocate at end of table, checking oveflow and return its index.
** On error, return -1.
*/
Word luaI_findsymbol (TaggedString *t)
int lua_findsymbol (char *s)
{
if (t->varindex == NOT_USED)
{
if (lua_ntable == lua_maxsymbol)
lua_maxsymbol = growvector(&lua_table, lua_maxsymbol, Symbol,
symbolEM, MAX_WORD);
t->varindex = lua_ntable;
lua_table[lua_ntable].varname = t;
s_tag(lua_ntable) = LUA_T_NIL;
lua_ntable++;
}
return t->varindex;
}
Word luaI_findsymbolbyname (char *name)
{
return luaI_findsymbol(luaI_createfixedstring(name));
}
/*
** Given a tree node, check it is has a correspondent constant index. If not,
** allocate it.
*/
Word luaI_findconstant (TaggedString *t)
{
if (t->constindex == NOT_USED)
{
if (lua_nconstant == lua_maxconstant)
lua_maxconstant = growvector(&lua_constant, lua_maxconstant, TaggedString *,
constantEM, MAX_WORD);
t->constindex = lua_nconstant;
lua_constant[lua_nconstant] = t;
lua_nconstant++;
}
return t->constindex;
}
Word luaI_findconstantbyname (char *name)
{
return luaI_findconstant(luaI_createfixedstring(name));
}
TaggedString *luaI_createfixedstring (char *name)
{
TaggedString *ts = lua_createstring(name);
if (!ts->marked)
ts->marked = 2; /* avoid GC */
return ts;
}
/*
** Traverse symbol table objects
*/
static char *lua_travsymbol (int (*fn)(Object *))
{
Word i;
int i;
for (i=0; i<lua_ntable; i++)
if (fn(&s_object(i)))
return lua_table[i].varname->str;
return NULL;
if (streq(s,s_name(i)))
return i;
if (lua_ntable >= MAXSYMBOL-1)
{
lua_error ("symbol table overflow");
return -1;
}
s_name(lua_ntable) = strdup(s);
if (s_name(lua_ntable) == NULL)
{
lua_error ("not enough memory");
return -1;
}
s_tag(lua_ntable++) = T_NIL;
return (lua_ntable-1);
}
/*
** Given a constant string, eliminate its delimeters (" or '), search it at
** constant table and return its index. If not found, allocate at end of
** the table, checking oveflow and return its index.
**
** For each allocation, the function allocate a extra char to be used to
** mark used string (it's necessary to deal with constant and string
** uniformily). The function store at the table the second position allocated,
** that represents the beginning of the real string. On error, return -1.
**
*/
int lua_findenclosedconstant (char *s)
{
int i, j, l=strlen(s);
char *c = calloc (l, sizeof(char)); /* make a copy */
c++; /* create mark space */
/* introduce scape characters */
for (i=1,j=0; i<l-1; i++)
{
if (s[i] == '\\')
{
switch (s[++i])
{
case 'n': c[j++] = '\n'; break;
case 't': c[j++] = '\t'; break;
case 'r': c[j++] = '\r'; break;
default : c[j++] = '\\'; c[j++] = c[i]; break;
}
}
else
c[j++] = s[i];
}
c[j++] = 0;
for (i=0; i<lua_nconstant; i++)
if (streq(c,lua_constant[i]))
{
free (c-1);
return i;
}
if (lua_nconstant >= MAXCONSTANT-1)
{
lua_error ("lua: constant string table overflow");
return -1;
}
lua_constant[lua_nconstant++] = c;
return (lua_nconstant-1);
}
/*
** Given a constant string, search it at constant table and return its index.
** If not found, allocate at end of the table, checking oveflow and return
** its index.
**
** For each allocation, the function allocate a extra char to be used to
** mark used string (it's necessary to deal with constant and string
** uniformily). The function store at the table the second position allocated,
** that represents the beginning of the real string. On error, return -1.
**
*/
int lua_findconstant (char *s)
{
int i;
for (i=0; i<lua_nconstant; i++)
if (streq(s,lua_constant[i]))
return i;
if (lua_nconstant >= MAXCONSTANT-1)
{
lua_error ("lua: constant string table overflow");
return -1;
}
{
char *c = calloc(strlen(s)+2,sizeof(char));
c++; /* create mark space */
lua_constant[lua_nconstant++] = strcpy(c,s);
}
return (lua_nconstant-1);
}
/*
** Mark an object if it is a string or a unmarked array.
*/
int lua_markobject (Object *o)
{/* if already marked, does not change mark value */
if (tag(o) == LUA_T_STRING && !tsvalue(o)->marked)
tsvalue(o)->marked = 1;
else if (tag(o) == LUA_T_ARRAY)
void lua_markobject (Object *o)
{
if (tag(o) == T_STRING)
lua_markstring (svalue(o)) = 1;
else if (tag(o) == T_ARRAY && markarray(avalue(o)) == 0)
lua_hashmark (avalue(o));
else if ((o->tag == LUA_T_FUNCTION || o->tag == LUA_T_MARK)
&& !o->value.tf->marked)
o->value.tf->marked = 1;
return 0;
}
/*
** Mark all strings and arrays used by any object stored at symbol table.
*/
static void lua_marktable (void)
{
int i;
for (i=0; i<lua_ntable; i++)
lua_markobject (&s_object(i));
}
/*
** Simulate a garbage colection. When string table or array table overflows,
** this function check if all allocated strings and arrays are in use. If
** there are unused ones, pack (compress) the tables.
*/
static void lua_pack (void)
{
lua_markstack ();
lua_marktable ();
{ /* pack string */
int i, j;
for (i=j=0; i<lua_nstring; i++)
if (lua_markstring(lua_string[i]) == 1)
{
lua_string[j++] = lua_string[i];
lua_markstring(lua_string[i]) = 0;
}
else
{
free (lua_string[i]-1);
}
lua_nstring = j;
}
{ /* pack array */
int i, j;
for (i=j=0; i<lua_narray; i++)
if (markarray(lua_array[i]) == 1)
{
lua_array[j++] = lua_array[i];
markarray(lua_array[i]) = 0;
}
else
{
lua_hashdelete (lua_array[i]);
}
lua_narray = j;
}
}
/*
** Allocate a new string at string table. The given string is already
** allocated with mark space and the function puts it at the end of the
** table, checking overflow, and returns its own pointer, or NULL on error.
*/
char *lua_createstring (char *s)
{
if (s == NULL) return NULL;
if (lua_nstring >= MAXSTRING-1)
{
lua_pack ();
if (lua_nstring >= MAXSTRING-1)
{
lua_error ("string table overflow");
return NULL;
}
}
lua_string[lua_nstring++] = s;
return s;
}
/*
** Allocate a new array, already created, at array table. The function puts
** it at the end of the table, checking overflow, and returns its own pointer,
** or NULL on error.
*/
void *lua_createarray (void *a)
{
if (a == NULL) return NULL;
if (lua_narray >= MAXARRAY-1)
{
lua_pack ();
if (lua_narray >= MAXARRAY-1)
{
lua_error ("indexed table overflow");
return NULL;
}
}
lua_array[lua_narray++] = a;
return a;
}
/*
** Garbage collection.
** Delete all unused strings and arrays.
** Add a file name at file table, checking overflow. This function also set
** the external variable "lua_filename" with the function filename set.
** Return 0 on success or 1 on error.
*/
Long luaI_collectgarbage (void)
int lua_addfile (char *fn)
{
Long recovered = 0;
lua_travstack(lua_markobject); /* mark stack objects */
lua_travsymbol(lua_markobject); /* mark symbol table objects */
luaI_travlock(lua_markobject); /* mark locked objects */
luaI_travfallbacks(lua_markobject); /* mark fallbacks */
recovered += lua_strcollector();
recovered += lua_hashcollector();
recovered += luaI_funccollector();
return recovered;
}
if (lua_nfile >= MAXFILE-1)
{
lua_error ("too many files");
return 1;
}
if ((lua_file[lua_nfile++] = strdup (fn)) == NULL)
{
lua_error ("not enough memory");
return 1;
}
return 0;
}
void lua_pack (void)
/*
** Return the last file name set.
*/
char *lua_filename (void)
{
static Long block = GARBAGE_BLOCK; /* when garbage collector will be called */
static Long nentity = 0; /* counter of new entities (strings and arrays) */
Long recovered = 0;
if (nentity++ < block) return;
recovered = luaI_collectgarbage();
nentity = 0; /* reset counter */
block=(16*block-7*recovered)/12; /* adapt block size */
if (block < MIN_GARBAGE_BLOCK) block = MIN_GARBAGE_BLOCK;
}
return lua_file[lua_nfile-1];
}
/*
** Internal function: return next global variable
*/
static void lua_nextvar (void)
void lua_nextvar (void)
{
Word next;
lua_Object o = lua_getparam(1);
if (o == LUA_NOOBJECT)
lua_error("too few arguments to function `nextvar'");
if (lua_getparam(2) != LUA_NOOBJECT)
lua_error("too many arguments to function `nextvar'");
if (lua_isnil(o))
next = 0;
else if (!lua_isstring(o))
int index;
Object *o = lua_getparam (1);
if (o == NULL)
{ lua_error ("too few arguments to function `nextvar'"); return; }
if (lua_getparam (2) != NULL)
{ lua_error ("too many arguments to function `nextvar'"); return; }
if (tag(o) == T_NIL)
{
lua_error("incorrect argument to function `nextvar'");
return; /* to avoid warnings */
index = 0;
}
else
next = luaI_findsymbolbyname(lua_getstring(o)) + 1;
while (next < lua_ntable && s_tag(next) == LUA_T_NIL) next++;
if (next >= lua_ntable)
{
lua_pushnil();
lua_pushnil();
else if (tag(o) != T_STRING)
{
lua_error ("incorrect argument to function `nextvar'");
return;
}
else
{
TaggedString *t = lua_table[next].varname;
for (index=0; index<lua_ntable; index++)
if (streq(s_name(index),svalue(o))) break;
if (index == lua_ntable)
{
lua_error ("name not found in function `nextvar'");
return;
}
index++;
while (index < lua_ntable-1 && tag(&s_object(index)) == T_NIL) index++;
if (index == lua_ntable-1)
{
lua_pushnil();
lua_pushnil();
return;
}
}
{
Object name;
tag(&name) = LUA_T_STRING;
tsvalue(&name) = t;
luaI_pushobject(&name);
luaI_pushobject(&s_object(next));
tag(&name) = T_STRING;
svalue(&name) = lua_createstring(lua_strdup(s_name(index)));
if (lua_pushobject (&name)) return;
if (lua_pushobject (&s_object(index))) return;
}
}
static Object *functofind;
static int checkfunc (Object *o)
{
if (o->tag == LUA_T_FUNCTION)
return
((functofind->tag == LUA_T_FUNCTION || functofind->tag == LUA_T_MARK)
&& (functofind->value.tf == o->value.tf));
if (o->tag == LUA_T_CFUNCTION)
return
((functofind->tag == LUA_T_CFUNCTION || functofind->tag == LUA_T_CMARK)
&& (functofind->value.f == o->value.f));
return 0;
}
char *lua_getobjname (lua_Object o, char **name)
{ /* try to find a name for given function */
functofind = luaI_Address(o);
if ((*name = luaI_travfallbacks(checkfunc)) != NULL)
return "fallback";
else if ((*name = lua_travsymbol(checkfunc)) != NULL)
return "global";
else return "";
}

50
table.h
View File

@@ -1,37 +1,39 @@
/*
** table.c
** Module to control static tables
** TeCGraf - PUC-Rio
** $Id: table.h,v 2.19 1996/02/26 21:00:27 roberto Exp roberto $
** 11 May 93
*/
#ifndef table_h
#define table_h
#include "tree.h"
#include "opcode.h"
typedef struct
{
Object object;
TaggedString *varname;
} Symbol;
extern Symbol *lua_table;
extern Word lua_ntable;
extern TaggedString **lua_constant;
extern Word lua_nconstant;
extern Word lua_ntable;
void luaI_initsymbol (void);
void luaI_initconstant (void);
Word luaI_findsymbolbyname (char *name);
Word luaI_findsymbol (TaggedString *t);
Word luaI_findconstant (TaggedString *t);
Word luaI_findconstantbyname (char *name);
TaggedString *luaI_createfixedstring (char *str);
int lua_markobject (Object *o);
Long luaI_collectgarbage (void);
void lua_pack (void);
extern char **lua_constant;
extern Word lua_nconstant;
extern char **lua_string;
extern Word lua_nstring;
extern Hash **lua_array;
extern Word lua_narray;
extern char *lua_file[];
extern int lua_nfile;
#define lua_markstring(s) (*((s)-1))
int lua_findsymbol (char *s);
int lua_findenclosedconstant (char *s);
int lua_findconstant (char *s);
void lua_markobject (Object *o);
char *lua_createstring (char *s);
void *lua_createarray (void *a);
int lua_addfile (char *fn);
char *lua_filename (void);
void lua_nextvar (void);
#endif

15
test.lua Normal file
View File

@@ -0,0 +1,15 @@
$debug
function somaP (x1,y1,x2,y2)
return x1+x2, y1+y2
end
function norma (x,y)
return x*x+y*y
end
function retorno_multiplo ()
print (norma(somaP(2,3,4,5)))
end

145
tree.c
View File

@@ -1,145 +0,0 @@
/*
** tree.c
** TecCGraf - PUC-Rio
*/
char *rcs_tree="$Id: tree.c,v 1.19 1996/02/22 20:34:33 roberto Exp $";
#include <string.h>
#include "mem.h"
#include "lua.h"
#include "tree.h"
#include "lex.h"
#include "hash.h"
#include "table.h"
#define NUM_HASHS 64
typedef struct {
int size;
int nuse; /* number of elements (including EMPTYs) */
TaggedString **hash;
} stringtable;
static int initialized = 0;
static stringtable string_root[NUM_HASHS];
static TaggedString EMPTY = {NOT_USED, NOT_USED, 0, 2, {0}};
static unsigned long hash (char *str)
{
unsigned long h = 0;
while (*str)
h = ((h<<5)-h)^(unsigned char)*(str++);
return h;
}
static void initialize (void)
{
initialized = 1;
luaI_addReserved();
luaI_initsymbol();
luaI_initconstant();
}
static void grow (stringtable *tb)
{
int newsize = luaI_redimension(tb->size);
TaggedString **newhash = newvector(newsize, TaggedString *);
int i;
for (i=0; i<newsize; i++)
newhash[i] = NULL;
/* rehash */
tb->nuse = 0;
for (i=0; i<tb->size; i++)
if (tb->hash[i] != NULL && tb->hash[i] != &EMPTY)
{
int h = tb->hash[i]->hash%newsize;
while (newhash[h])
h = (h+1)%newsize;
newhash[h] = tb->hash[i];
tb->nuse++;
}
luaI_free(tb->hash);
tb->size = newsize;
tb->hash = newhash;
}
static TaggedString *insert (char *str, stringtable *tb)
{
TaggedString *ts;
unsigned long h = hash(str);
int i;
int j = -1;
if ((Long)tb->nuse*3 >= (Long)tb->size*2)
{
if (!initialized)
initialize();
grow(tb);
}
i = h%tb->size;
while (tb->hash[i])
{
if (tb->hash[i] == &EMPTY)
j = i;
else if (strcmp(str, tb->hash[i]->str) == 0)
return tb->hash[i];
i = (i+1)%tb->size;
}
/* not found */
lua_pack();
if (j != -1) /* is there an EMPTY space? */
i = j;
else
tb->nuse++;
ts = tb->hash[i] = (TaggedString *)luaI_malloc(sizeof(TaggedString)+strlen(str));
strcpy(ts->str, str);
ts->marked = 0;
ts->hash = h;
ts->varindex = ts->constindex = NOT_USED;
return ts;
}
TaggedString *lua_createstring (char *str)
{
return insert(str, &string_root[(unsigned)str[0]%NUM_HASHS]);
}
/*
** Garbage collection function.
** This function traverse the string list freeing unindexed strings
*/
Long lua_strcollector (void)
{
Long counter = 0;
int i;
for (i=0; i<NUM_HASHS; i++)
{
stringtable *tb = &string_root[i];
int j;
for (j=0; j<tb->size; j++)
{
TaggedString *t = tb->hash[j];
if (t != NULL && t->marked <= 1)
{
if (t->marked)
t->marked = 0;
else
{
luaI_free(t);
tb->hash[j] = &EMPTY;
counter++;
}
}
}
}
return counter;
}

28
tree.h
View File

@@ -1,28 +0,0 @@
/*
** tree.h
** TecCGraf - PUC-Rio
** $Id: tree.h,v 1.13 1996/02/14 13:35:51 roberto Exp roberto $
*/
#ifndef tree_h
#define tree_h
#include "types.h"
#define NOT_USED 0xFFFE
typedef struct TaggedString
{
Word varindex; /* != NOT_USED if this is a symbol */
Word constindex; /* != NOT_USED if this is a constant */
unsigned long hash; /* 0 if not initialized */
int marked; /* for garbage collection; never collect (nor change) if > 1 */
char str[1]; /* \0 byte already reserved */
} TaggedString;
TaggedString *lua_createstring (char *str);
Long lua_strcollector (void);
#endif

35
type.lua Normal file
View File

@@ -0,0 +1,35 @@
$debug
function check (object, class)
local v = next(object,nil);
while v ~= nil do
if class[v] = nil then print("unknown field: " .. v)
elseif type(object[v]) ~= class[v].type
then print("wrong type for field " .. v)
end
v = next(object,v);
end
v = next(class,nil);
while v ~= nil do
if object[v] = nil then
if class[v].default ~= nil then
object[v] = class[v].default
else print("field "..v.." not initialized")
end
end
v = next(class,v);
end
end
typetrilha = @{x = @{default = 0, type = "number"},
y = @{default = 0, type = "number"},
name = @{type = "string"}
}
function trilha (t) check(t,typetrilha) end
t1 = @trilha{ x = 4, name = "3"}
a = "na".."me"


29
types.h
View File

@@ -1,29 +0,0 @@
/*
** TeCGraf - PUC-Rio
** $Id: types.h,v 1.3 1995/02/06 19:32:43 roberto Exp roberto $
*/
#ifndef types_h
#define types_h
#include <limits.h>
#ifndef real
#define real float
#endif
#define Byte lua_Byte /* some systems have Byte as a predefined type */
typedef unsigned char Byte; /* unsigned 8 bits */
#define Word lua_Word /* some systems have Word as a predefined type */
typedef unsigned short Word; /* unsigned 16 bits */
#define MAX_WORD (USHRT_MAX-2) /* maximum value of a word (-2 for safety) */
#define MAX_INT (INT_MAX-2) /* maximum value of a int (-2 for safety) */
#define Long lua_Long /* some systems have Long as a predefined type */
typedef signed long Long; /* 32 bits */
typedef unsigned int IntPoint; /* unsigned with same size as a pointer (for hashing) */
#endif

326
undump.c
View File

@@ -1,326 +0,0 @@
/*
** undump.c
** load bytecodes from files
*/
char* rcs_undump="$Id: undump.c,v 1.13 1996/03/12 20:00:40 lhf Exp lhf $";
#include <stdio.h>
#include <string.h>
#include "opcode.h"
#include "mem.h"
#include "table.h"
#include "undump.h"
static int swapword=0;
static int swapfloat=0;
static TFunc* Main=NULL; /* functions in a chunk */
static TFunc* lastF=NULL;
static void warn(char* s) /* TODO: remove */
{
#if 0
fprintf(stderr,"undump: %s\n",s);
#endif
}
static void FixCode(Byte* code, Byte* end) /* swap words */
{
Byte* p;
for (p=code; p!=end;)
{
OpCode op=(OpCode)*p;
switch (op)
{
case PUSHNIL:
case PUSH0:
case PUSH1:
case PUSH2:
case PUSHLOCAL0:
case PUSHLOCAL1:
case PUSHLOCAL2:
case PUSHLOCAL3:
case PUSHLOCAL4:
case PUSHLOCAL5:
case PUSHLOCAL6:
case PUSHLOCAL7:
case PUSHLOCAL8:
case PUSHLOCAL9:
case PUSHINDEXED:
case STORELOCAL0:
case STORELOCAL1:
case STORELOCAL2:
case STORELOCAL3:
case STORELOCAL4:
case STORELOCAL5:
case STORELOCAL6:
case STORELOCAL7:
case STORELOCAL8:
case STORELOCAL9:
case STOREINDEXED0:
case ADJUST0:
case EQOP:
case LTOP:
case LEOP:
case GTOP:
case GEOP:
case ADDOP:
case SUBOP:
case MULTOP:
case DIVOP:
case POWOP:
case CONCOP:
case MINUSOP:
case NOTOP:
case POP:
case RETCODE0:
p++;
break;
case PUSHBYTE:
case PUSHLOCAL:
case STORELOCAL:
case STOREINDEXED:
case STORELIST0:
case ADJUST:
case RETCODE:
p+=2;
break;
case STORELIST:
case CALLFUNC:
p+=3;
break;
case PUSHFUNCTION:
p+=5;
break;
case PUSHWORD:
case PUSHSELF:
case CREATEARRAY:
case ONTJMP:
case ONFJMP:
case JMP:
case UPJMP:
case IFFJMP:
case IFFUPJMP:
case SETLINE:
case PUSHSTRING:
case PUSHGLOBAL:
case STOREGLOBAL:
{
Byte t;
t=p[1]; p[1]=p[2]; p[2]=t;
p+=3;
break;
}
case PUSHFLOAT:
{
Byte t;
t=p[1]; p[1]=p[4]; p[4]=t;
t=p[2]; p[2]=p[3]; p[3]=t;
p+=5;
break;
}
case STORERECORD:
{
int n=*++p;
p++;
while (n--)
{
Byte t;
t=p[0]; p[0]=p[1]; p[1]=t;
p+=2;
}
break;
}
default:
lua_error("corrupt binary file");
break;
}
}
}
static void Unthread(Byte* code, int i, int v)
{
while (i!=0)
{
CodeWord c;
Byte* p=code+i;
get_word(c,p);
i=c.w;
c.w=v;
p[-2]=c.m.c1;
p[-1]=c.m.c2;
}
}
static int LoadWord(FILE* D)
{
Word w;
fread(&w,sizeof(w),1,D);
if (swapword)
{
Byte* p=(Byte*)&w; /* TODO: need union? */
Byte t;
t=p[0]; p[0]=p[1]; p[1]=t;
}
return w;
}
static int LoadSize(FILE* D)
{
Word hi=LoadWord(D);
Word lo=LoadWord(D);
int s=(hi<<16)|lo;
if ((Word)s != s) lua_error("code too long");
return s;
}
static char* LoadBlock(int size, FILE* D)
{
char* b=luaI_malloc(size);
fread(b,size,1,D);
return b;
}
static char* LoadString(FILE* D)
{
int size=LoadWord(D);
char *b=luaI_buffer(size);
fread(b,size,1,D);
return b;
}
static char* LoadNewString(FILE* D)
{
return LoadBlock(LoadWord(D),D);
}
static void LoadFunction(FILE* D)
{
TFunc* tf=new(TFunc);
tf->next=NULL;
tf->locvars=NULL;
tf->size=LoadSize(D);
tf->lineDefined=LoadWord(D);
if (IsMain(tf)) /* new main */
{
tf->fileName=LoadNewString(D);
Main=lastF=tf;
}
else /* fix PUSHFUNCTION */
{
CodeCode c;
Byte* p;
tf->marked=LoadWord(D);
tf->fileName=Main->fileName;
p=Main->code+tf->marked;
c.tf=tf;
*p++=c.m.c1; *p++=c.m.c2; *p++=c.m.c3; *p++=c.m.c4;
lastF=lastF->next=tf;
}
tf->code=LoadBlock(tf->size,D);
if (swapword || swapfloat) FixCode(tf->code,tf->code+tf->size);
while (1) /* unthread */
{
int c=getc(D);
if (c==ID_VAR) /* global var */
{
int i=LoadWord(D);
char* s=LoadString(D);
int v=luaI_findsymbolbyname(s);
Unthread(tf->code,i,v);
}
else if (c==ID_STR) /* constant string */
{
int i=LoadWord(D);
char* s=LoadString(D);
int v=luaI_findconstantbyname(s);
Unthread(tf->code,i,v);
}
else
{
ungetc(c,D);
break;
}
}
}
static void LoadSignature(FILE* D)
{
char* s=SIGNATURE;
while (*s!=0 && getc(D)==*s)
++s;
if (*s!=0) lua_error("bad signature");
}
static void LoadHeader(FILE* D) /* TODO: error handling */
{
Word w,tw=TEST_WORD;
float f,tf=TEST_FLOAT;
LoadSignature(D);
getc(D); /* skip version */
fread(&w,sizeof(w),1,D); /* test word */
if (w!=tw)
{
swapword=1;
warn("different byte order");
}
fread(&f,sizeof(f),1,D); /* test float */
if (f!=tf)
{
Byte* p=(Byte*)&f; /* TODO: need union? */
Byte t;
swapfloat=1;
t=p[0]; p[0]=p[3]; p[3]=t;
t=p[1]; p[1]=p[2]; p[2]=t;
if (f!=tf) /* TODO: try another perm? */
lua_error("different float representation");
else
warn("different byte order in floats");
}
}
static void LoadChunk(FILE* D)
{
LoadHeader(D);
while (1)
{
int c=getc(D);
if (c==ID_FUN) LoadFunction(D); else { ungetc(c,D); break; }
}
}
/*
** load one chunk from a file.
** return list of functions found, headed by main, or NULL at EOF.
*/
TFunc* luaI_undump1(FILE* D)
{
while (1)
{
int c=getc(D);
if (c==ID_CHUNK)
{
LoadChunk(D);
return Main;
}
else if (c==EOF)
return NULL;
else
lua_error("not a lua binary file");
}
}
/*
** load and run all chunks in a file
*/
int luaI_undump(FILE* D)
{
TFunc* m;
while ((m=luaI_undump1(D)))
{
int status=luaI_dorun(m);
luaI_freefunc(m);
if (status!=0) return status;
}
return 0;
}

View File

@@ -1,23 +0,0 @@
/*
** undump.h
** definitions for lua decompiler
** $Id: undump.h,v 1.1 1996/03/08 21:43:21 lhf Exp lhf $
*/
#include "func.h"
#define IsMain(f) (f->lineDefined==0)
/* definitions for chunk headers */
#define ID_CHUNK 27 /* ESC */
#define ID_FUN 'F'
#define ID_VAR 'V'
#define ID_STR 'S'
#define SIGNATURE "Lua"
#define VERSION 0x23 /* 2.3 */
#define TEST_WORD 0x1234 /* a word for testing byte ordering */
#define TEST_FLOAT 0.123456789e-23 /* a float for testing representation */
TFunc* luaI_undump1(FILE* D); /* load one chunk */
int luaI_undump(FILE* D); /* load all chunks */

1639
y_tab.c Normal file

File diff suppressed because it is too large Load Diff

35
y_tab.h Normal file
View File

@@ -0,0 +1,35 @@
typedef union
{
int vInt;
long vLong;
float vFloat;
Word vWord;
Byte *pByte;
} YYSTYPE;
extern YYSTYPE yylval;
# define NIL 257
# define IF 258
# define THEN 259
# define ELSE 260
# define ELSEIF 261
# define WHILE 262
# define DO 263
# define REPEAT 264
# define UNTIL 265
# define END 266
# define RETURN 267
# define LOCAL 268
# define NUMBER 269
# define FUNCTION 270
# define NAME 271
# define STRING 272
# define DEBUG 273
# define NOT 274
# define AND 275
# define OR 276
# define NE 277
# define LE 278
# define GE 279
# define CONC 280
# define UNARY 281