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Commit 24edab0f authored by hudson@kremvax's avatar hudson@kremvax
Browse files

Imported lua-5.1.4

parent 1e441d146216
# makefile for building Lua
# see ../INSTALL for installation instructions
# see ../Makefile and luaconf.h for further customization
# == CHANGE THE SETTINGS BELOW TO SUIT YOUR ENVIRONMENT =======================
# Your platform. See PLATS for possible values.
PLAT= none
CC= gcc
CFLAGS= -O2 -Wall $(MYCFLAGS)
AR= ar rcu
RANLIB= ranlib
RM= rm -f
LIBS= -lm $(MYLIBS)
MYCFLAGS=
MYLDFLAGS=
MYLIBS=
# == END OF USER SETTINGS. NO NEED TO CHANGE ANYTHING BELOW THIS LINE =========
PLATS= aix ansi bsd freebsd generic linux macosx mingw posix solaris
LUA_A= liblua.a
CORE_O= lapi.o lcode.o ldebug.o ldo.o ldump.o lfunc.o lgc.o llex.o lmem.o \
lobject.o lopcodes.o lparser.o lstate.o lstring.o ltable.o ltm.o \
lundump.o lvm.o lzio.o
LIB_O= lauxlib.o lbaselib.o ldblib.o liolib.o lmathlib.o loslib.o ltablib.o \
lstrlib.o loadlib.o linit.o
LUA_T= lua
LUA_O= lua.o
LUAC_T= luac
LUAC_O= luac.o print.o
ALL_O= $(CORE_O) $(LIB_O) $(LUA_O) $(LUAC_O)
ALL_T= $(LUA_A) $(LUA_T) $(LUAC_T)
ALL_A= $(LUA_A)
default: $(PLAT)
all: $(ALL_T)
o: $(ALL_O)
a: $(ALL_A)
$(LUA_A): $(CORE_O) $(LIB_O)
$(AR) $@ $?
$(RANLIB) $@
$(LUA_T): $(LUA_O) $(LUA_A)
$(CC) -o $@ $(MYLDFLAGS) $(LUA_O) $(LUA_A) $(LIBS)
$(LUAC_T): $(LUAC_O) $(LUA_A)
$(CC) -o $@ $(MYLDFLAGS) $(LUAC_O) $(LUA_A) $(LIBS)
clean:
$(RM) $(ALL_T) $(ALL_O)
depend:
@$(CC) $(CFLAGS) -MM l*.c print.c
echo:
@echo "PLAT = $(PLAT)"
@echo "CC = $(CC)"
@echo "CFLAGS = $(CFLAGS)"
@echo "AR = $(AR)"
@echo "RANLIB = $(RANLIB)"
@echo "RM = $(RM)"
@echo "MYCFLAGS = $(MYCFLAGS)"
@echo "MYLDFLAGS = $(MYLDFLAGS)"
@echo "MYLIBS = $(MYLIBS)"
# convenience targets for popular platforms
none:
@echo "Please choose a platform:"
@echo " $(PLATS)"
aix:
$(MAKE) all CC="xlc" CFLAGS="-O2 -DLUA_USE_POSIX -DLUA_USE_DLOPEN" MYLIBS="-ldl" MYLDFLAGS="-brtl -bexpall"
ansi:
$(MAKE) all MYCFLAGS=-DLUA_ANSI
bsd:
$(MAKE) all MYCFLAGS="-DLUA_USE_POSIX -DLUA_USE_DLOPEN" MYLIBS="-Wl,-E"
freebsd:
$(MAKE) all MYCFLAGS="-DLUA_USE_LINUX" MYLIBS="-Wl,-E -lreadline"
generic:
$(MAKE) all MYCFLAGS=
linux:
$(MAKE) all MYCFLAGS=-DLUA_USE_LINUX MYLIBS="-Wl,-E -ldl -lreadline -lhistory -lncurses"
macosx:
$(MAKE) all MYCFLAGS=-DLUA_USE_LINUX MYLIBS="-lreadline"
# use this on Mac OS X 10.3-
# $(MAKE) all MYCFLAGS=-DLUA_USE_MACOSX
mingw:
$(MAKE) "LUA_A=lua51.dll" "LUA_T=lua.exe" \
"AR=$(CC) -shared -o" "RANLIB=strip --strip-unneeded" \
"MYCFLAGS=-DLUA_BUILD_AS_DLL" "MYLIBS=" "MYLDFLAGS=-s" lua.exe
$(MAKE) "LUAC_T=luac.exe" luac.exe
posix:
$(MAKE) all MYCFLAGS=-DLUA_USE_POSIX
solaris:
$(MAKE) all MYCFLAGS="-DLUA_USE_POSIX -DLUA_USE_DLOPEN" MYLIBS="-ldl"
# list targets that do not create files (but not all makes understand .PHONY)
.PHONY: all $(PLATS) default o a clean depend echo none
# DO NOT DELETE
lapi.o: lapi.c lua.h luaconf.h lapi.h lobject.h llimits.h ldebug.h \
lstate.h ltm.h lzio.h lmem.h ldo.h lfunc.h lgc.h lstring.h ltable.h \
lundump.h lvm.h
lauxlib.o: lauxlib.c lua.h luaconf.h lauxlib.h
lbaselib.o: lbaselib.c lua.h luaconf.h lauxlib.h lualib.h
lcode.o: lcode.c lua.h luaconf.h lcode.h llex.h lobject.h llimits.h \
lzio.h lmem.h lopcodes.h lparser.h ldebug.h lstate.h ltm.h ldo.h lgc.h \
ltable.h
ldblib.o: ldblib.c lua.h luaconf.h lauxlib.h lualib.h
ldebug.o: ldebug.c lua.h luaconf.h lapi.h lobject.h llimits.h lcode.h \
llex.h lzio.h lmem.h lopcodes.h lparser.h ldebug.h lstate.h ltm.h ldo.h \
lfunc.h lstring.h lgc.h ltable.h lvm.h
ldo.o: ldo.c lua.h luaconf.h ldebug.h lstate.h lobject.h llimits.h ltm.h \
lzio.h lmem.h ldo.h lfunc.h lgc.h lopcodes.h lparser.h lstring.h \
ltable.h lundump.h lvm.h
ldump.o: ldump.c lua.h luaconf.h lobject.h llimits.h lstate.h ltm.h \
lzio.h lmem.h lundump.h
lfunc.o: lfunc.c lua.h luaconf.h lfunc.h lobject.h llimits.h lgc.h lmem.h \
lstate.h ltm.h lzio.h
lgc.o: lgc.c lua.h luaconf.h ldebug.h lstate.h lobject.h llimits.h ltm.h \
lzio.h lmem.h ldo.h lfunc.h lgc.h lstring.h ltable.h
linit.o: linit.c lua.h luaconf.h lualib.h lauxlib.h
liolib.o: liolib.c lua.h luaconf.h lauxlib.h lualib.h
llex.o: llex.c lua.h luaconf.h ldo.h lobject.h llimits.h lstate.h ltm.h \
lzio.h lmem.h llex.h lparser.h lstring.h lgc.h ltable.h
lmathlib.o: lmathlib.c lua.h luaconf.h lauxlib.h lualib.h
lmem.o: lmem.c lua.h luaconf.h ldebug.h lstate.h lobject.h llimits.h \
ltm.h lzio.h lmem.h ldo.h
loadlib.o: loadlib.c lua.h luaconf.h lauxlib.h lualib.h
lobject.o: lobject.c lua.h luaconf.h ldo.h lobject.h llimits.h lstate.h \
ltm.h lzio.h lmem.h lstring.h lgc.h lvm.h
lopcodes.o: lopcodes.c lopcodes.h llimits.h lua.h luaconf.h
loslib.o: loslib.c lua.h luaconf.h lauxlib.h lualib.h
lparser.o: lparser.c lua.h luaconf.h lcode.h llex.h lobject.h llimits.h \
lzio.h lmem.h lopcodes.h lparser.h ldebug.h lstate.h ltm.h ldo.h \
lfunc.h lstring.h lgc.h ltable.h
lstate.o: lstate.c lua.h luaconf.h ldebug.h lstate.h lobject.h llimits.h \
ltm.h lzio.h lmem.h ldo.h lfunc.h lgc.h llex.h lstring.h ltable.h
lstring.o: lstring.c lua.h luaconf.h lmem.h llimits.h lobject.h lstate.h \
ltm.h lzio.h lstring.h lgc.h
lstrlib.o: lstrlib.c lua.h luaconf.h lauxlib.h lualib.h
ltable.o: ltable.c lua.h luaconf.h ldebug.h lstate.h lobject.h llimits.h \
ltm.h lzio.h lmem.h ldo.h lgc.h ltable.h
ltablib.o: ltablib.c lua.h luaconf.h lauxlib.h lualib.h
ltm.o: ltm.c lua.h luaconf.h lobject.h llimits.h lstate.h ltm.h lzio.h \
lmem.h lstring.h lgc.h ltable.h
lua.o: lua.c lua.h luaconf.h lauxlib.h lualib.h
luac.o: luac.c lua.h luaconf.h lauxlib.h ldo.h lobject.h llimits.h \
lstate.h ltm.h lzio.h lmem.h lfunc.h lopcodes.h lstring.h lgc.h \
lundump.h
lundump.o: lundump.c lua.h luaconf.h ldebug.h lstate.h lobject.h \
llimits.h ltm.h lzio.h lmem.h ldo.h lfunc.h lstring.h lgc.h lundump.h
lvm.o: lvm.c lua.h luaconf.h ldebug.h lstate.h lobject.h llimits.h ltm.h \
lzio.h lmem.h ldo.h lfunc.h lgc.h lopcodes.h lstring.h ltable.h lvm.h
lzio.o: lzio.c lua.h luaconf.h llimits.h lmem.h lstate.h lobject.h ltm.h \
lzio.h
print.o: print.c ldebug.h lstate.h lua.h luaconf.h lobject.h llimits.h \
ltm.h lzio.h lmem.h lopcodes.h lundump.h
# (end of Makefile)
This diff is collapsed.
/*
** $Id: lapi.h,v 2.2.1.1 2007/12/27 13:02:25 roberto Exp $
** Auxiliary functions from Lua API
** See Copyright Notice in lua.h
*/
#ifndef lapi_h
#define lapi_h
#include "lobject.h"
LUAI_FUNC void luaA_pushobject (lua_State *L, const TValue *o);
#endif
/*
** $Id: lauxlib.c,v 1.159.1.3 2008/01/21 13:20:51 roberto Exp $
** Auxiliary functions for building Lua libraries
** See Copyright Notice in lua.h
*/
#include <ctype.h>
#include <errno.h>
#include <stdarg.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
/* This file uses only the official API of Lua.
** Any function declared here could be written as an application function.
*/
#define lauxlib_c
#define LUA_LIB
#include "lua.h"
#include "lauxlib.h"
#define FREELIST_REF 0 /* free list of references */
/* convert a stack index to positive */
#define abs_index(L, i) ((i) > 0 || (i) <= LUA_REGISTRYINDEX ? (i) : \
lua_gettop(L) + (i) + 1)
/*
** {======================================================
** Error-report functions
** =======================================================
*/
LUALIB_API int luaL_argerror (lua_State *L, int narg, const char *extramsg) {
lua_Debug ar;
if (!lua_getstack(L, 0, &ar)) /* no stack frame? */
return luaL_error(L, "bad argument #%d (%s)", narg, extramsg);
lua_getinfo(L, "n", &ar);
if (strcmp(ar.namewhat, "method") == 0) {
narg--; /* do not count `self' */
if (narg == 0) /* error is in the self argument itself? */
return luaL_error(L, "calling " LUA_QS " on bad self (%s)",
ar.name, extramsg);
}
if (ar.name == NULL)
ar.name = "?";
return luaL_error(L, "bad argument #%d to " LUA_QS " (%s)",
narg, ar.name, extramsg);
}
LUALIB_API int luaL_typerror (lua_State *L, int narg, const char *tname) {
const char *msg = lua_pushfstring(L, "%s expected, got %s",
tname, luaL_typename(L, narg));
return luaL_argerror(L, narg, msg);
}
static void tag_error (lua_State *L, int narg, int tag) {
luaL_typerror(L, narg, lua_typename(L, tag));
}
LUALIB_API void luaL_where (lua_State *L, int level) {
lua_Debug ar;
if (lua_getstack(L, level, &ar)) { /* check function at level */
lua_getinfo(L, "Sl", &ar); /* get info about it */
if (ar.currentline > 0) { /* is there info? */
lua_pushfstring(L, "%s:%d: ", ar.short_src, ar.currentline);
return;
}
}
lua_pushliteral(L, ""); /* else, no information available... */
}
LUALIB_API int luaL_error (lua_State *L, const char *fmt, ...) {
va_list argp;
va_start(argp, fmt);
luaL_where(L, 1);
lua_pushvfstring(L, fmt, argp);
va_end(argp);
lua_concat(L, 2);
return lua_error(L);
}
/* }====================================================== */
LUALIB_API int luaL_checkoption (lua_State *L, int narg, const char *def,
const char *const lst[]) {
const char *name = (def) ? luaL_optstring(L, narg, def) :
luaL_checkstring(L, narg);
int i;
for (i=0; lst[i]; i++)
if (strcmp(lst[i], name) == 0)
return i;
return luaL_argerror(L, narg,
lua_pushfstring(L, "invalid option " LUA_QS, name));
}
LUALIB_API int luaL_newmetatable (lua_State *L, const char *tname) {
lua_getfield(L, LUA_REGISTRYINDEX, tname); /* get registry.name */
if (!lua_isnil(L, -1)) /* name already in use? */
return 0; /* leave previous value on top, but return 0 */
lua_pop(L, 1);
lua_newtable(L); /* create metatable */
lua_pushvalue(L, -1);
lua_setfield(L, LUA_REGISTRYINDEX, tname); /* registry.name = metatable */
return 1;
}
LUALIB_API void *luaL_checkudata (lua_State *L, int ud, const char *tname) {
void *p = lua_touserdata(L, ud);
if (p != NULL) { /* value is a userdata? */
if (lua_getmetatable(L, ud)) { /* does it have a metatable? */
lua_getfield(L, LUA_REGISTRYINDEX, tname); /* get correct metatable */
if (lua_rawequal(L, -1, -2)) { /* does it have the correct mt? */
lua_pop(L, 2); /* remove both metatables */
return p;
}
}
}
luaL_typerror(L, ud, tname); /* else error */
return NULL; /* to avoid warnings */
}
LUALIB_API void luaL_checkstack (lua_State *L, int space, const char *mes) {
if (!lua_checkstack(L, space))
luaL_error(L, "stack overflow (%s)", mes);
}
LUALIB_API void luaL_checktype (lua_State *L, int narg, int t) {
if (lua_type(L, narg) != t)
tag_error(L, narg, t);
}
LUALIB_API void luaL_checkany (lua_State *L, int narg) {
if (lua_type(L, narg) == LUA_TNONE)
luaL_argerror(L, narg, "value expected");
}
LUALIB_API const char *luaL_checklstring (lua_State *L, int narg, size_t *len) {
const char *s = lua_tolstring(L, narg, len);
if (!s) tag_error(L, narg, LUA_TSTRING);
return s;
}
LUALIB_API const char *luaL_optlstring (lua_State *L, int narg,
const char *def, size_t *len) {
if (lua_isnoneornil(L, narg)) {
if (len)
*len = (def ? strlen(def) : 0);
return def;
}
else return luaL_checklstring(L, narg, len);
}
LUALIB_API lua_Number luaL_checknumber (lua_State *L, int narg) {
lua_Number d = lua_tonumber(L, narg);
if (d == 0 && !lua_isnumber(L, narg)) /* avoid extra test when d is not 0 */
tag_error(L, narg, LUA_TNUMBER);
return d;
}
LUALIB_API lua_Number luaL_optnumber (lua_State *L, int narg, lua_Number def) {
return luaL_opt(L, luaL_checknumber, narg, def);
}
LUALIB_API lua_Integer luaL_checkinteger (lua_State *L, int narg) {
lua_Integer d = lua_tointeger(L, narg);
if (d == 0 && !lua_isnumber(L, narg)) /* avoid extra test when d is not 0 */
tag_error(L, narg, LUA_TNUMBER);
return d;
}
LUALIB_API lua_Integer luaL_optinteger (lua_State *L, int narg,
lua_Integer def) {
return luaL_opt(L, luaL_checkinteger, narg, def);
}
LUALIB_API int luaL_getmetafield (lua_State *L, int obj, const char *event) {
if (!lua_getmetatable(L, obj)) /* no metatable? */
return 0;
lua_pushstring(L, event);
lua_rawget(L, -2);
if (lua_isnil(L, -1)) {
lua_pop(L, 2); /* remove metatable and metafield */
return 0;
}
else {
lua_remove(L, -2); /* remove only metatable */
return 1;
}
}
LUALIB_API int luaL_callmeta (lua_State *L, int obj, const char *event) {
obj = abs_index(L, obj);
if (!luaL_getmetafield(L, obj, event)) /* no metafield? */
return 0;
lua_pushvalue(L, obj);
lua_call(L, 1, 1);
return 1;
}
LUALIB_API void (luaL_register) (lua_State *L, const char *libname,
const luaL_Reg *l) {
luaI_openlib(L, libname, l, 0);
}
static int libsize (const luaL_Reg *l) {
int size = 0;
for (; l->name; l++) size++;
return size;
}
LUALIB_API void luaI_openlib (lua_State *L, const char *libname,
const luaL_Reg *l, int nup) {
if (libname) {
int size = libsize(l);
/* check whether lib already exists */
luaL_findtable(L, LUA_REGISTRYINDEX, "_LOADED", 1);
lua_getfield(L, -1, libname); /* get _LOADED[libname] */
if (!lua_istable(L, -1)) { /* not found? */
lua_pop(L, 1); /* remove previous result */
/* try global variable (and create one if it does not exist) */
if (luaL_findtable(L, LUA_GLOBALSINDEX, libname, size) != NULL)
luaL_error(L, "name conflict for module " LUA_QS, libname);
lua_pushvalue(L, -1);
lua_setfield(L, -3, libname); /* _LOADED[libname] = new table */
}
lua_remove(L, -2); /* remove _LOADED table */
lua_insert(L, -(nup+1)); /* move library table to below upvalues */
}
for (; l->name; l++) {
int i;
for (i=0; i<nup; i++) /* copy upvalues to the top */
lua_pushvalue(L, -nup);
lua_pushcclosure(L, l->func, nup);
lua_setfield(L, -(nup+2), l->name);
}
lua_pop(L, nup); /* remove upvalues */
}
/*
** {======================================================
** getn-setn: size for arrays
** =======================================================
*/
#if defined(LUA_COMPAT_GETN)
static int checkint (lua_State *L, int topop) {
int n = (lua_type(L, -1) == LUA_TNUMBER) ? lua_tointeger(L, -1) : -1;
lua_pop(L, topop);
return n;
}
static void getsizes (lua_State *L) {
lua_getfield(L, LUA_REGISTRYINDEX, "LUA_SIZES");
if (lua_isnil(L, -1)) { /* no `size' table? */
lua_pop(L, 1); /* remove nil */
lua_newtable(L); /* create it */
lua_pushvalue(L, -1); /* `size' will be its own metatable */
lua_setmetatable(L, -2);
lua_pushliteral(L, "kv");
lua_setfield(L, -2, "__mode"); /* metatable(N).__mode = "kv" */
lua_pushvalue(L, -1);
lua_setfield(L, LUA_REGISTRYINDEX, "LUA_SIZES"); /* store in register */
}
}
LUALIB_API void luaL_setn (lua_State *L, int t, int n) {
t = abs_index(L, t);
lua_pushliteral(L, "n");
lua_rawget(L, t);
if (checkint(L, 1) >= 0) { /* is there a numeric field `n'? */
lua_pushliteral(L, "n"); /* use it */
lua_pushinteger(L, n);
lua_rawset(L, t);
}
else { /* use `sizes' */
getsizes(L);
lua_pushvalue(L, t);
lua_pushinteger(L, n);
lua_rawset(L, -3); /* sizes[t] = n */
lua_pop(L, 1); /* remove `sizes' */
}
}
LUALIB_API int luaL_getn (lua_State *L, int t) {
int n;
t = abs_index(L, t);
lua_pushliteral(L, "n"); /* try t.n */
lua_rawget(L, t);
if ((n = checkint(L, 1)) >= 0) return n;
getsizes(L); /* else try sizes[t] */
lua_pushvalue(L, t);
lua_rawget(L, -2);
if ((n = checkint(L, 2)) >= 0) return n;
return (int)lua_objlen(L, t);
}
#endif
/* }====================================================== */
LUALIB_API const char *luaL_gsub (lua_State *L, const char *s, const char *p,
const char *r) {
const char *wild;
size_t l = strlen(p);
luaL_Buffer b;
luaL_buffinit(L, &b);
while ((wild = strstr(s, p)) != NULL) {
luaL_addlstring(&b, s, wild - s); /* push prefix */
luaL_addstring(&b, r); /* push replacement in place of pattern */
s = wild + l; /* continue after `p' */
}
luaL_addstring(&b, s); /* push last suffix */
luaL_pushresult(&b);
return lua_tostring(L, -1);
}
LUALIB_API const char *luaL_findtable (lua_State *L, int idx,
const char *fname, int szhint) {
const char *e;
lua_pushvalue(L, idx);
do {
e = strchr(fname, '.');
if (e == NULL) e = fname + strlen(fname);
lua_pushlstring(L, fname, e - fname);
lua_rawget(L, -2);
if (lua_isnil(L, -1)) { /* no such field? */
lua_pop(L, 1); /* remove this nil */
lua_createtable(L, 0, (*e == '.' ? 1 : szhint)); /* new table for field */
lua_pushlstring(L, fname, e - fname);
lua_pushvalue(L, -2);
lua_settable(L, -4); /* set new table into field */
}
else if (!lua_istable(L, -1)) { /* field has a non-table value? */
lua_pop(L, 2); /* remove table and value */
return fname; /* return problematic part of the name */
}
lua_remove(L, -2); /* remove previous table */
fname = e + 1;
} while (*e == '.');
return NULL;
}
/*
** {======================================================
** Generic Buffer manipulation
** =======================================================
*/
#define bufflen(B) ((B)->p - (B)->buffer)
#define bufffree(B) ((size_t)(LUAL_BUFFERSIZE - bufflen(B)))
#define LIMIT (LUA_MINSTACK/2)
static int emptybuffer (luaL_Buffer *B) {
size_t l = bufflen(B);
if (l == 0) return 0; /* put nothing on stack */
else {
lua_pushlstring(B->L, B->buffer, l);
B->p = B->buffer;
B->lvl++;
return 1;
}
}
static void adjuststack (luaL_Buffer *B) {
if (B->lvl > 1) {
lua_State *L = B->L;
int toget = 1; /* number of levels to concat */
size_t toplen = lua_strlen(L, -1);
do {
size_t l = lua_strlen(L, -(toget+1));
if (B->lvl - toget + 1 >= LIMIT || toplen > l) {
toplen += l;
toget++;
}
else break;
} while (toget < B->lvl);