nik/lush
1
1
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

no more explicit support for wide-chars; too much troble...

Browse Source
This commit is contained in:
Roberto Ierusalimschy
2001-11-28 18:13:13 -02:00
parent dfaf8c5291
commit 72659a0605
39 changed files with 1161 additions and 1210 deletions
Download Patch File Download Diff File Expand all files Collapse all files

245
liolib.c
View File

@@ -1,5 +1,5 @@
/*
** $Id: liolib.c,v 1.123 2001/10/02 16:41:36 roberto Exp $
** $Id: liolib.c,v 1.124 2001/10/26 17:33:30 roberto Exp $
** Standard I/O (and system) library
** See Copyright Notice in lua.h
*/
@@ -10,7 +10,6 @@
#include <string.h>
#include <time.h>
#define LUA_PRIVATE
#include "lua.h"
#include "lauxlib.h"
@@ -40,12 +39,12 @@ int pclose(); */
#define OUTFILE 1
#define NOFILE 2
#define FILEHANDLE l_s("FileHandle")
#define CLOSEDFILEHANDLE l_s("ClosedFileHandle")
#define FILEHANDLE "FileHandle"
#define CLOSEDFILEHANDLE "ClosedFileHandle"
static const l_char *const filenames[] = {l_s("_INPUT"), l_s("_OUTPUT")};
static const l_char *const basicfiles[] = {l_s("_STDIN"), l_s("_STDOUT")};
static const char *const filenames[] = {"_INPUT", "_OUTPUT"};
static const char *const basicfiles[] = {"_STDIN", "_STDOUT"};
static int pushresult (lua_State *L, int i) {
@@ -77,16 +76,16 @@ static FILE *getopthandle (lua_State *L, int inout) {
if (p != NULL) { /* is it a userdata ? */
if (!checkfile(L, 1)) { /* not a valid file handle? */
if (strcmp(lua_type(L, 1), CLOSEDFILEHANDLE) == 0)
luaL_argerror(L, 1, l_s("file is closed"));
luaL_argerror(L, 1, "file is closed");
else
luaL_argerror(L, 1, l_s("(invalid value)"));
luaL_argerror(L, 1, "(invalid value)");
}
lua_pushvalue(L, 1); lua_remove(L, 1); /* move it to stack top */
}
else { /* try global value */
lua_getglobal(L, filenames[inout]);
if (!checkfile(L,-1))
luaL_verror(L, l_s("global variable `%.10s' is not a valid file handle"),
luaL_verror(L, "global variable `%.10s' is not a valid file handle",
filenames[inout]);
p = (FILE *)(lua_touserdata(L, -1));
}
@@ -100,7 +99,7 @@ static void newfile (lua_State *L, FILE *f) {
}
static void newfilewithname (lua_State *L, FILE *f, const l_char *name) {
static void newfilewithname (lua_State *L, FILE *f, const char *name) {
newfile(L, f);
lua_setglobal(L, name);
}
@@ -158,7 +157,7 @@ static int io_tmpfile (lua_State *L) {
static int io_fromto (lua_State *L, int inout, const l_char *mode) {
static int io_fromto (lua_State *L, int inout, const char *mode) {
FILE *current;
if (lua_isnull(L, 1)) {
getopthandle(L, inout);
@@ -166,25 +165,25 @@ static int io_fromto (lua_State *L, int inout, const l_char *mode) {
return io_close(L);
}
else {
const l_char *s = luaL_check_string(L, 1);
current = (*s == l_c('|')) ? popen(s+1, mode) : fopen(s, mode);
const char *s = luaL_check_string(L, 1);
current = (*s == '|') ? popen(s+1, mode) : fopen(s, mode);
return setnewfile(L, current, inout);
}
}
static int io_readfrom (lua_State *L) {
return io_fromto(L, INFILE, l_s("r"));
return io_fromto(L, INFILE, "r");
}
static int io_writeto (lua_State *L) {
return io_fromto(L, OUTFILE, l_s("w"));
return io_fromto(L, OUTFILE, "w");
}
static int io_appendto (lua_State *L) {
FILE *current = fopen(luaL_check_string(L, 1), l_s("a"));
FILE *current = fopen(luaL_check_string(L, 1), "a");
return setnewfile(L, current, OUTFILE);
}
@@ -208,7 +207,7 @@ static int io_appendto (lua_State *L) {
** Addison-Wesley, 1993.)
*/
static void prep_read_until (int next[], const l_char *p, int pl) {
static void prep_read_until (int next[], const char *p, int pl) {
int i = 0;
int j = -1;
next[0] = -1;
@@ -221,8 +220,8 @@ static void prep_read_until (int next[], const l_char *p, int pl) {
}
static int read_until (lua_State *L, FILE *f, const l_char *p, int pl) {
l_charint c;
static int read_until (lua_State *L, FILE *f, const char *p, int pl) {
int c;
int j;
int next[LUA_MAXUNTIL+1];
luaL_Buffer b;
@@ -255,7 +254,7 @@ static int read_until (lua_State *L, FILE *f, const l_char *p, int pl) {
static int read_number (lua_State *L, FILE *f) {
lua_Number d;
if (fscanf(f, l_s(LUA_NUMBER_SCAN), &d) == 1) {
if (fscanf(f, LUA_NUMBER_SCAN, &d) == 1) {
lua_pushnumber(L, d);
return 1;
}
@@ -264,7 +263,7 @@ static int read_number (lua_State *L, FILE *f) {
static int test_eof (lua_State *L, FILE *f) {
l_charint c = getc(f);
int c = getc(f);
ungetc(c, f);
lua_pushlstring(L, NULL, 0);
return (c != EOF);
@@ -278,9 +277,9 @@ static int read_chars (lua_State *L, FILE *f, size_t n) {
luaL_buffinit(L, &b);
rlen = LUAL_BUFFERSIZE; /* try to read that much each time */
do {
l_char *p = luaL_prepbuffer(&b);
char *p = luaL_prepbuffer(&b);
if (rlen > n) rlen = n; /* cannot read more than asked */
nr = fread(p, sizeof(l_char), rlen, f);
nr = fread(p, sizeof(char), rlen, f);
luaL_addsize(&b, nr);
n -= nr; /* still have to read `n' chars */
} while (n > 0 && nr == rlen); /* until end of count or eof */
@@ -295,11 +294,11 @@ static int io_read (lua_State *L) {
int success;
int n;
if (nargs == 0) { /* no arguments? */
success = read_until(L, f, l_s("\n"), 1); /* read until \n (a line) */
success = read_until(L, f, "\n", 1); /* read until \n (a line) */
n = 2; /* will return n-1 results */
}
else { /* ensure stack space for all results and for auxlib's buffer */
luaL_check_stack(L, nargs+LUA_MINSTACK, l_s("too many arguments"));
luaL_check_stack(L, nargs+LUA_MINSTACK, "too many arguments");
success = 1;
for (n = 1; n<=nargs && success; n++) {
if (lua_rawtag(L, n) == LUA_TNUMBER) {
@@ -307,32 +306,32 @@ static int io_read (lua_State *L) {
success = (l == 0) ? test_eof(L, f) : read_chars(L, f, l);
}
else {
const l_char *p = lua_tostring(L, n);
if (!p || p[0] != l_c('*'))
lua_error(L, l_s("invalid `read' option"));
const char *p = lua_tostring(L, n);
if (!p || p[0] != '*')
lua_error(L, "invalid `read' option");
switch (p[1]) {
case l_c('n'): /* number */
case 'n': /* number */
success = read_number(L, f);
break;
case l_c('l'): /* line */
success = read_until(L, f, l_s("\n"), 1); /* read until \n */
case 'l': /* line */
success = read_until(L, f, "\n", 1); /* read until \n */
break;
case l_c('a'): /* file */
case 'a': /* file */
read_chars(L, f, ~((size_t)0)); /* read MAX_SIZE_T chars */
success = 1; /* always success */
break;
case l_c('w'): /* word */
lua_error(L, l_s("obsolete option `*w'"));
case 'w': /* word */
lua_error(L, "obsolete option `*w'");
break;
case l_c('u'): { /* read until */
case 'u': { /* read until */
size_t pl = lua_strlen(L, n) - 2;
luaL_arg_check(L, 0 < pl && pl <= LUA_MAXUNTIL, n,
l_s("invalid read-until length"));
"invalid read-until length");
success = read_until(L, f, p+2, (int)(pl));
break;
}
default:
luaL_argerror(L, n, l_s("invalid format"));
luaL_argerror(L, n, "invalid format");
success = 0; /* to avoid warnings */
}
}
@@ -357,12 +356,12 @@ static int io_write (lua_State *L) {
if (lua_rawtag(L, arg) == LUA_TNUMBER) {
/* optimization: could be done exactly as for strings */
status = status &&
fprintf(f, l_s(LUA_NUMBER_FMT), lua_tonumber(L, arg)) > 0;
fprintf(f, LUA_NUMBER_FMT, lua_tonumber(L, arg)) > 0;
}
else {
size_t l;
const l_char *s = luaL_check_lstr(L, arg, &l);
status = status && (fwrite(s, sizeof(l_char), l, f) == l);
const char *s = luaL_check_lstr(L, arg, &l);
status = status && (fwrite(s, sizeof(char), l, f) == l);
}
}
pushresult(L, status);
@@ -372,11 +371,11 @@ static int io_write (lua_State *L) {
static int io_seek (lua_State *L) {
static const int mode[] = {SEEK_SET, SEEK_CUR, SEEK_END};
static const l_char *const modenames[] = {l_s("set"), l_s("cur"), l_s("end"), NULL};
static const char *const modenames[] = {"set", "cur", "end", NULL};
FILE *f = (FILE *)(luaL_check_userdata(L, 1, FILEHANDLE));
int op = luaL_findstring(luaL_opt_string(L, 2, l_s("cur")), modenames);
int op = luaL_findstring(luaL_opt_string(L, 2, "cur"), modenames);
long offset = luaL_opt_long(L, 3, 0);
luaL_arg_check(L, op != -1, 2, l_s("invalid mode"));
luaL_arg_check(L, op != -1, 2, "invalid mode");
op = fseek(f, offset, mode[op]);
if (op)
return pushresult(L, 0); /* error */
@@ -420,9 +419,9 @@ static int io_rename (lua_State *L) {
static int io_tmpname (lua_State *L) {
l_char buff[L_tmpnam];
char buff[L_tmpnam];
if (tmpnam(buff) != buff)
lua_error(L, l_s("unable to generate a unique filename"));
lua_error(L, "unable to generate a unique filename");
lua_pushstring(L, buff);
return 1;
}
@@ -449,14 +448,14 @@ static int io_clock (lua_State *L) {
** =======================================================
*/
static void setfield (lua_State *L, const l_char *key, int value) {
static void setfield (lua_State *L, const char *key, int value) {
lua_pushstring(L, key);
lua_pushnumber(L, value);
lua_rawset(L, -3);
}
static int getfield (lua_State *L, const l_char *key, int d) {
static int getfield (lua_State *L, const char *key, int d) {
int res;
lua_pushstring(L, key);
lua_rawget(L, -2);
@@ -464,7 +463,7 @@ static int getfield (lua_State *L, const l_char *key, int d) {
res = (int)(lua_tonumber(L, -1));
else {
if (d == -2)
luaL_verror(L, l_s("field `%.20s' missing in date table"), key);
luaL_verror(L, "field `%.20s' missing in date table", key);
res = d;
}
lua_pop(L, 1);
@@ -473,12 +472,12 @@ static int getfield (lua_State *L, const l_char *key, int d) {
static int io_date (lua_State *L) {
const l_char *s = luaL_opt_string(L, 1, l_s("%c"));
const char *s = luaL_opt_string(L, 1, "%c");
time_t t = (time_t)(luaL_opt_number(L, 2, -1));
struct tm *stm;
if (t == (time_t)(-1)) /* no time given? */
t = time(NULL); /* use current time */
if (*s == l_c('!')) { /* UTC? */
if (*s == '!') { /* UTC? */
stm = gmtime(&t);
s++; /* skip `!' */
}
@@ -486,24 +485,24 @@ static int io_date (lua_State *L) {
stm = localtime(&t);
if (stm == NULL) /* invalid date? */
lua_pushnil(L);
else if (strcmp(s, l_s("*t")) == 0) {
else if (strcmp(s, "*t") == 0) {
lua_newtable(L);
setfield(L, l_s("sec"), stm->tm_sec);
setfield(L, l_s("min"), stm->tm_min);
setfield(L, l_s("hour"), stm->tm_hour);
setfield(L, l_s("day"), stm->tm_mday);
setfield(L, l_s("month"), stm->tm_mon+1);
setfield(L, l_s("year"), stm->tm_year+1900);
setfield(L, l_s("wday"), stm->tm_wday+1);
setfield(L, l_s("yday"), stm->tm_yday+1);
setfield(L, l_s("isdst"), stm->tm_isdst);
setfield(L, "sec", stm->tm_sec);
setfield(L, "min", stm->tm_min);
setfield(L, "hour", stm->tm_hour);
setfield(L, "day", stm->tm_mday);
setfield(L, "month", stm->tm_mon+1);
setfield(L, "year", stm->tm_year+1900);
setfield(L, "wday", stm->tm_wday+1);
setfield(L, "yday", stm->tm_yday+1);
setfield(L, "isdst", stm->tm_isdst);
}
else {
l_char b[256];
char b[256];
if (strftime(b, sizeof(b), s, stm))
lua_pushstring(L, b);
else
lua_error(L, l_s("invalid `date' format"));
lua_error(L, "invalid `date' format");
}
return 1;
}
@@ -517,13 +516,13 @@ static int io_time (lua_State *L) {
struct tm ts;
luaL_check_rawtype(L, 1, LUA_TTABLE);
lua_settop(L, 1); /* make sure table is at the top */
ts.tm_sec = getfield(L, l_s("sec"), 0);
ts.tm_min = getfield(L, l_s("min"), 0);
ts.tm_hour = getfield(L, l_s("hour"), 12);
ts.tm_mday = getfield(L, l_s("day"), -2);
ts.tm_mon = getfield(L, l_s("month"), -2)-1;
ts.tm_year = getfield(L, l_s("year"), -2)-1900;
ts.tm_isdst = getfield(L, l_s("isdst"), -1);
ts.tm_sec = getfield(L, "sec", 0);
ts.tm_min = getfield(L, "min", 0);
ts.tm_hour = getfield(L, "hour", 12);
ts.tm_mday = getfield(L, "day", -2);
ts.tm_mon = getfield(L, "month", -2)-1;
ts.tm_year = getfield(L, "year", -2)-1900;
ts.tm_isdst = getfield(L, "isdst", -1);
t = mktime(&ts);
if (t == (time_t)(-1))
lua_pushnil(L);
@@ -546,10 +545,10 @@ static int io_difftime (lua_State *L) {
static int io_setloc (lua_State *L) {
static const int cat[] = {LC_ALL, LC_COLLATE, LC_CTYPE, LC_MONETARY,
LC_NUMERIC, LC_TIME};
static const l_char *const catnames[] = {l_s("all"), l_s("collate"), l_s("ctype"), l_s("monetary"),
l_s("numeric"), l_s("time"), NULL};
int op = luaL_findstring(luaL_opt_string(L, 2, l_s("all")), catnames);
luaL_arg_check(L, op != -1, 2, l_s("invalid option"));
static const char *const catnames[] = {"all", "collate", "ctype", "monetary",
"numeric", "time", NULL};
int op = luaL_findstring(luaL_opt_string(L, 2, "all"), catnames);
luaL_arg_check(L, op != -1, 2, "invalid option");
lua_pushstring(L, setlocale(cat[op], luaL_check_string(L, 1)));
return 1;
}
@@ -566,10 +565,10 @@ static int io_exit (lua_State *L) {
static int io_debug (lua_State *L) {
for (;;) {
l_char buffer[250];
fprintf(stderr, l_s("lua_debug> "));
char buffer[250];
fprintf(stderr, "lua_debug> ");
if (fgets(buffer, sizeof(buffer), stdin) == 0 ||
strcmp(buffer, l_s("cont\n")) == 0)
strcmp(buffer, "cont\n") == 0)
return 0;
lua_dostring(L, buffer);
lua_settop(L, 0); /* remove eventual returns */
@@ -586,61 +585,61 @@ static int errorfb (lua_State *L) {
lua_Debug ar;
luaL_Buffer b;
luaL_buffinit(L, &b);
luaL_addstring(&b, l_s("error: "));
luaL_addstring(&b, "error: ");
luaL_addstring(&b, luaL_check_string(L, 1));
luaL_addstring(&b, l_s("\n"));
luaL_addstring(&b, "\n");
while (lua_getstack(L, level++, &ar)) {
l_char buff[120]; /* enough to fit following `sprintf's */
char buff[120]; /* enough to fit following `sprintf's */
if (level == 2)
luaL_addstring(&b, l_s("stack traceback:\n"));
luaL_addstring(&b, "stack traceback:\n");
else if (level > LEVELS1 && firstpart) {
/* no more than `LEVELS2' more levels? */
if (!lua_getstack(L, level+LEVELS2, &ar))
level--; /* keep going */
else {
luaL_addstring(&b, l_s(" ...\n")); /* too many levels */
luaL_addstring(&b, " ...\n"); /* too many levels */
while (lua_getstack(L, level+LEVELS2, &ar)) /* find last levels */
level++;
}
firstpart = 0;
continue;
}
sprintf(buff, l_s("%4d: "), level-1);
sprintf(buff, "%4d: ", level-1);
luaL_addstring(&b, buff);
lua_getinfo(L, l_s("Snl"), &ar);
lua_getinfo(L, "Snl", &ar);
switch (*ar.namewhat) {
case l_c('g'): case l_c('l'): /* global, local */
sprintf(buff, l_s("function `%.50s'"), ar.name);
case 'g': case 'l': /* global, local */
sprintf(buff, "function `%.50s'", ar.name);
break;
case l_c('f'): /* field */
sprintf(buff, l_s("method `%.50s'"), ar.name);
case 'f': /* field */
sprintf(buff, "method `%.50s'", ar.name);
break;
case l_c('t'): /* tag method */
sprintf(buff, l_s("`%.50s' tag method"), ar.name);
case 't': /* tag method */
sprintf(buff, "`%.50s' tag method", ar.name);
break;
default: {
if (*ar.what == l_c('m')) /* main? */
sprintf(buff, l_s("main of %.70s"), ar.short_src);
else if (*ar.what == l_c('C')) /* C function? */
sprintf(buff, l_s("%.70s"), ar.short_src);
if (*ar.what == 'm') /* main? */
sprintf(buff, "main of %.70s", ar.short_src);
else if (*ar.what == 'C') /* C function? */
sprintf(buff, "%.70s", ar.short_src);
else
sprintf(buff, l_s("function <%d:%.70s>"), ar.linedefined, ar.short_src);
sprintf(buff, "function <%d:%.70s>", ar.linedefined, ar.short_src);
ar.source = NULL; /* do not print source again */
}
}
luaL_addstring(&b, buff);
if (ar.currentline > 0) {
sprintf(buff, l_s(" at line %d"), ar.currentline);
sprintf(buff, " at line %d", ar.currentline);
luaL_addstring(&b, buff);
}
if (ar.source) {
sprintf(buff, l_s(" [%.70s]"), ar.short_src);
sprintf(buff, " [%.70s]", ar.short_src);
luaL_addstring(&b, buff);
}
luaL_addstring(&b, l_s("\n"));
luaL_addstring(&b, "\n");
}
luaL_pushresult(&b);
lua_getglobal(L, l_s(LUA_ALERT));
lua_getglobal(L, LUA_ALERT);
if (lua_isfunction(L, -1)) { /* avoid loop if _ALERT is not defined */
lua_pushvalue(L, -2); /* error message */
lua_rawcall(L, 1, 0);
@@ -651,29 +650,29 @@ static int errorfb (lua_State *L) {
static const luaL_reg iolib[] = {
{l_s("appendto"), io_appendto},
{l_s("clock"), io_clock},
{l_s("closefile"), io_close},
{l_s("date"), io_date},
{l_s("debug"), io_debug},
{l_s("difftime"), io_difftime},
{l_s("execute"), io_execute},
{l_s("exit"), io_exit},
{l_s("flush"), io_flush},
{l_s("getenv"), io_getenv},
{l_s("openfile"), io_open},
{l_s("read"), io_read},
{l_s("readfrom"), io_readfrom},
{l_s("remove"), io_remove},
{l_s("rename"), io_rename},
{l_s("seek"), io_seek},
{l_s("setlocale"), io_setloc},
{l_s("time"), io_time},
{l_s("tmpfile"), io_tmpfile},
{l_s("tmpname"), io_tmpname},
{l_s("write"), io_write},
{l_s("writeto"), io_writeto},
{l_s(LUA_ERRORMESSAGE), errorfb}
{"appendto", io_appendto},
{"clock", io_clock},
{"closefile", io_close},
{"date", io_date},
{"debug", io_debug},
{"difftime", io_difftime},
{"execute", io_execute},
{"exit", io_exit},
{"flush", io_flush},
{"getenv", io_getenv},
{"openfile", io_open},
{"read", io_read},
{"readfrom", io_readfrom},
{"remove", io_remove},
{"rename", io_rename},
{"seek", io_seek},
{"setlocale", io_setloc},
{"time", io_time},
{"tmpfile", io_tmpfile},
{"tmpname", io_tmpname},
{"write", io_write},
{"writeto", io_writeto},
{LUA_ERRORMESSAGE, errorfb}
};
@@ -684,12 +683,12 @@ LUALIB_API int lua_iolibopen (lua_State *L) {
/* predefined file handles */
newfilewithname(L, stdin, basicfiles[INFILE]);
newfilewithname(L, stdout, basicfiles[OUTFILE]);
newfilewithname(L, stderr, l_s("_STDERR"));
newfilewithname(L, stderr, "_STDERR");
resetfile(L, INFILE);
resetfile(L, OUTFILE);
/* close files when collected */
lua_pushcfunction(L, file_collect);
lua_settagmethod(L, iotag, l_s("gc"));
lua_settagmethod(L, iotag, "gc");
return 0;
}