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| author | Roberto Ierusalimschy <roberto@inf.puc-rio.br> | 2005-07-13 16:02:42 -0300 |
|---|---|---|
| committer | Roberto Ierusalimschy <roberto@inf.puc-rio.br> | 2005-07-13 16:02:42 -0300 |
| commit | d6ff5d9f46be3db99dd3fec0c12504b7ba1854e1 (patch) | |
| tree | 268a21e18ee7d43fd9147f89b6039b1b11b2536d /lauxlib.c | |
| parent | a05190fa3b5c3685b0772f0235f136e05587fa9c (diff) | |
| download | lua-d6ff5d9f46be3db99dd3fec0c12504b7ba1854e1.tar.gz lua-d6ff5d9f46be3db99dd3fec0c12504b7ba1854e1.tar.bz2 lua-d6ff5d9f46be3db99dd3fec0c12504b7ba1854e1.zip | |
searchpath is "private affair" of loadlib
Diffstat (limited to 'lauxlib.c')
| -rw-r--r-- | lauxlib.c | 35 |
1 files changed, 1 insertions, 34 deletions
| @@ -1,5 +1,5 @@ | |||
| 1 | /* | 1 | /* |
| 2 | ** $Id: lauxlib.c,v 1.139 2005/07/11 16:41:51 roberto Exp roberto $ | 2 | ** $Id: lauxlib.c,v 1.140 2005/07/12 14:32:48 roberto Exp roberto $ |
| 3 | ** Auxiliary functions for building Lua libraries | 3 | ** Auxiliary functions for building Lua libraries |
| 4 | ** See Copyright Notice in lua.h | 4 | ** See Copyright Notice in lua.h |
| 5 | */ | 5 | */ |
| @@ -325,16 +325,6 @@ LUALIB_API int luaL_getn (lua_State *L, int t) { | |||
| 325 | /* }====================================================== */ | 325 | /* }====================================================== */ |
| 326 | 326 | ||
| 327 | 327 | ||
| 328 | static const char *pushnexttemplate (lua_State *L, const char *path) { | ||
| 329 | const char *l; | ||
| 330 | while (*path == *LUA_PATHSEP) path++; /* skip separators */ | ||
| 331 | if (*path == '\0') return NULL; /* no more templates */ | ||
| 332 | l = strchr(path, *LUA_PATHSEP); /* find next separator */ | ||
| 333 | if (l == NULL) l = path+strlen(path); | ||
| 334 | lua_pushlstring(L, path, l - path); /* template */ | ||
| 335 | return l; | ||
| 336 | } | ||
| 337 | |||
| 338 | 328 | ||
| 339 | LUALIB_API const char *luaL_gsub (lua_State *L, const char *s, const char *p, | 329 | LUALIB_API const char *luaL_gsub (lua_State *L, const char *s, const char *p, |
| 340 | const char *r) { | 330 | const char *r) { |
| @@ -353,29 +343,6 @@ LUALIB_API const char *luaL_gsub (lua_State *L, const char *s, const char *p, | |||
| 353 | } | 343 | } |
| 354 | 344 | ||
| 355 | 345 | ||
| 356 | static int readable (const char *fname) { | ||
| 357 | FILE *f = fopen(fname, "r"); /* try to open file */ | ||
| 358 | if (f == NULL) return 0; /* open failed */ | ||
| 359 | fclose(f); | ||
| 360 | return 1; | ||
| 361 | } | ||
| 362 | |||
| 363 | |||
| 364 | LUALIB_API const char *luaL_searchpath (lua_State *L, const char *name, | ||
| 365 | const char *path) { | ||
| 366 | const char *p = path; | ||
| 367 | for (;;) { | ||
| 368 | const char *fname; | ||
| 369 | if ((p = pushnexttemplate(L, p)) == NULL) | ||
| 370 | return NULL; | ||
| 371 | fname = luaL_gsub(L, lua_tostring(L, -1), LUA_PATH_MARK, name); | ||
| 372 | lua_remove(L, -2); /* remove path template */ | ||
| 373 | if (readable(fname)) /* does file exist and is readable? */ | ||
| 374 | return fname; /* return that file name */ | ||
| 375 | lua_pop(L, 1); /* remove file name */ | ||
| 376 | } | ||
| 377 | } | ||
| 378 | |||
| 379 | 346 | ||
| 380 | LUALIB_API const char *luaL_getfield (lua_State *L, int idx, | 347 | LUALIB_API const char *luaL_getfield (lua_State *L, int idx, |
| 381 | const char *fname) { | 348 | const char *fname) { |
