mirrors
/
lua
mirror of https://github.com/lua/lua
1
0
Fork 0
Code Issues Packages Projects Releases Wiki Activity

details

This commit is contained in:
Roberto Ierusalimschy 2004-12-20 11:47:29 -02:00
parent c6254dceff
commit 4194de70e7
1 changed files with 14 additions and 11 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

25
lauxlib.c
View File

@ -1,5 +1,5 @@
/*
** $Id: lauxlib.c,v 1.125 2004/09/21 16:54:32 roberto Exp roberto $
** $Id: lauxlib.c,v 1.126 2004/09/29 21:03:14 roberto Exp roberto $
** Auxiliary functions for building Lua libraries
** See Copyright Notice in lua.h
*/
@ -375,9 +375,19 @@ LUALIB_API const char *luaL_gsub (lua_State *L, const char *s, const char *p,
}
static int readable (const char *fname) {
int err;
FILE *f = fopen(fname, "r"); /* try to open file */
if (f == NULL) return 0; /* open failed */
getc(f); /* try to read it */
err = ferror(f);
fclose(f);
return (err == 0);
}
LUALIB_API const char *luaL_searchpath (lua_State *L, const char *name,
const char *path) {
FILE *f;
const char *p = path;
for (;;) {
const char *fname;
@ -387,15 +397,8 @@ LUALIB_API const char *luaL_searchpath (lua_State *L, const char *name,
}
fname = luaL_gsub(L, lua_tostring(L, -1), LUA_PATH_MARK, name);
lua_remove(L, -2); /* remove path template */
f = fopen(fname, "r"); /* try to open it */
if (f) {
int err;
getc(f); /* try to read file */
err = ferror(f);
fclose(f);
if (err == 0) /* open and read sucessful? */
return fname; /* return that file name */
}
if (readable(fname)) /* does file exist and is readable? */
return fname; /* return that file name */
lua_pop(L, 1); /* remove file name */
}
}