diff options
Diffstat (limited to 'src/lauxlib.c')
-rw-r--r-- | src/lauxlib.c | 133 |
1 files changed, 0 insertions, 133 deletions
diff --git a/src/lauxlib.c b/src/lauxlib.c deleted file mode 100644 index db929c4f..00000000 --- a/src/lauxlib.c +++ /dev/null @@ -1,133 +0,0 @@ -/* -** $Id: lauxlib.c,v 1.17 1999/03/11 18:59:19 roberto Exp $ -** Auxiliary functions for building Lua libraries -** See Copyright Notice in lua.h -*/ - - -#include <stdarg.h> -#include <stdio.h> -#include <string.h> - -/* Please Notice: This file uses only the official API of Lua -** Any function declared here could be written as an application function. -** With care, these functions can be used by other libraries. -*/ - -#include "lauxlib.h" -#include "lua.h" -#include "luadebug.h" - - - -int luaL_findstring (char *name, char *list[]) { - int i; - for (i=0; list[i]; i++) - if (strcmp(list[i], name) == 0) - return i; - return -1; /* name not found */ -} - -void luaL_argerror (int numarg, char *extramsg) { - lua_Function f = lua_stackedfunction(0); - char *funcname; - lua_getobjname(f, &funcname); - numarg -= lua_nups(f); - if (funcname == NULL) - funcname = "?"; - if (extramsg == NULL) - luaL_verror("bad argument #%d to function `%.50s'", numarg, funcname); - else - luaL_verror("bad argument #%d to function `%.50s' (%.100s)", - numarg, funcname, extramsg); -} - -char *luaL_check_lstr (int numArg, long *len) -{ - lua_Object o = lua_getparam(numArg); - luaL_arg_check(lua_isstring(o), numArg, "string expected"); - if (len) *len = lua_strlen(o); - return lua_getstring(o); -} - -char *luaL_opt_lstr (int numArg, char *def, long *len) -{ - return (lua_getparam(numArg) == LUA_NOOBJECT) ? def : - luaL_check_lstr(numArg, len); -} - -double luaL_check_number (int numArg) -{ - lua_Object o = lua_getparam(numArg); - luaL_arg_check(lua_isnumber(o), numArg, "number expected"); - return lua_getnumber(o); -} - - -double luaL_opt_number (int numArg, double def) -{ - return (lua_getparam(numArg) == LUA_NOOBJECT) ? def : - luaL_check_number(numArg); -} - - -lua_Object luaL_tablearg (int arg) -{ - lua_Object o = lua_getparam(arg); - luaL_arg_check(lua_istable(o), arg, "table expected"); - return o; -} - -lua_Object luaL_functionarg (int arg) -{ - lua_Object o = lua_getparam(arg); - luaL_arg_check(lua_isfunction(o), arg, "function expected"); - return o; -} - -lua_Object luaL_nonnullarg (int numArg) -{ - lua_Object o = lua_getparam(numArg); - luaL_arg_check(o != LUA_NOOBJECT, numArg, "value expected"); - return o; -} - -void luaL_openlib (struct luaL_reg *l, int n) -{ - int i; - lua_open(); /* make sure lua is already open */ - for (i=0; i<n; i++) - lua_register(l[i].name, l[i].func); -} - - -void luaL_verror (char *fmt, ...) -{ - char buff[500]; - va_list argp; - va_start(argp, fmt); - vsprintf(buff, fmt, argp); - va_end(argp); - lua_error(buff); -} - - -void luaL_chunkid (char *out, char *source, int len) { - len -= 13; /* 13 = strlen("string ''...\0") */ - if (*source == '@') - sprintf(out, "file `%.*s'", len, source+1); - else if (*source == '(') - strcpy(out, "(C code)"); - else { - char *b = strchr(source , '\n'); /* stop string at first new line */ - int lim = (b && (b-source)<len) ? b-source : len; - sprintf(out, "string `%.*s'", lim, source); - strcpy(out+lim+(13-5), "...'"); /* 5 = strlen("...'\0") */ - } -} - - -void luaL_filesource (char *out, char *filename, int len) { - if (filename == NULL) filename = "(stdin)"; - sprintf(out, "@%.*s", len-2, filename); /* -2 for '@' and '\0' */ -} |