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searchpath is "private affair" of loadlib

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This commit is contained in:
Roberto Ierusalimschy
2005-07-13 16:02:42 -03:00
parent a05190fa3b
commit d6ff5d9f46
3 changed files with 48 additions and 54 deletions
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35
lauxlib.c
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@@ -1,5 +1,5 @@
/*
** $Id: lauxlib.c,v 1.139 2005/07/11 16:41:51 roberto Exp roberto $
** $Id: lauxlib.c,v 1.140 2005/07/12 14:32:48 roberto Exp roberto $
** Auxiliary functions for building Lua libraries
** See Copyright Notice in lua.h
*/
@@ -325,16 +325,6 @@ LUALIB_API int luaL_getn (lua_State *L, int t) {
/* }====================================================== */
static const char *pushnexttemplate (lua_State *L, const char *path) {
const char *l;
while (*path == *LUA_PATHSEP) path++; /* skip separators */
if (*path == '\0') return NULL; /* no more templates */
l = strchr(path, *LUA_PATHSEP); /* find next separator */
if (l == NULL) l = path+strlen(path);
lua_pushlstring(L, path, l - path); /* template */
return l;
}
LUALIB_API const char *luaL_gsub (lua_State *L, const char *s, const char *p,
const char *r) {
@@ -353,29 +343,6 @@ LUALIB_API const char *luaL_gsub (lua_State *L, const char *s, const char *p,
}
static int readable (const char *fname) {
FILE *f = fopen(fname, "r"); /* try to open file */
if (f == NULL) return 0; /* open failed */
fclose(f);
return 1;
}
LUALIB_API const char *luaL_searchpath (lua_State *L, const char *name,
const char *path) {
const char *p = path;
for (;;) {
const char *fname;
if ((p = pushnexttemplate(L, p)) == NULL)
return NULL;
fname = luaL_gsub(L, lua_tostring(L, -1), LUA_PATH_MARK, name);
lua_remove(L, -2); /* remove path template */
if (readable(fname)) /* does file exist and is readable? */
return fname; /* return that file name */
lua_pop(L, 1); /* remove file name */
}
}
LUALIB_API const char *luaL_getfield (lua_State *L, int idx,
const char *fname) {