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/*
* POSIX library for Lua 5.1, 5.2, 5.3 & 5.4.
* Copyright (C) 2013-2025 Gary V. Vaughan
* Copyright (C) 2010-2013 Reuben Thomas <rrt@sc3d.org>
* Copyright (C) 2008-2010 Natanael Copa <natanael.copa@gmail.com>
* Clean up and bug fixes by Leo Razoumov <slonik.az@gmail.com> 2006-10-11
* Luiz Henrique de Figueiredo <lhf@tecgraf.puc-rio.br> 07 Apr 2006 23:17:49
* Based on original by Claudio Terra for Lua 3.x.
* With contributions by Roberto Ierusalimschy.
* With documentation from Steve Donovan 2012
*/
/***
Character tests.
@module posix.ctype
*/
#include <ctype.h>
#include "_helpers.c"
static int
bind_ctype(lua_State *L, int (*cb)(int))
{
const char *s = luaL_checkstring(L, 1);
char c = *s;
checknargs(L, 1);
lua_pop(L, 1);
return pushintegerresult(cb((int)c));
}
/***
Check for any printable character except space.
@function isgraph
@string character to act on
@treturn int non-zero if character is not in the class
@see isgraph(3)
*/
static int
Pisgraph(lua_State *L)
{
return bind_ctype(L, &isgraph);
}
/***
Check for any printable character including space.
@function isprint
@string character to act on
@treturn int non-zero if character is not in the class
@see isprint(3)
*/
static int
Pisprint(lua_State *L)
{
return bind_ctype(L, &isprint);
}
static const luaL_Reg posix_ctype_fns[] =
{
LPOSIX_FUNC( Pisgraph ),
LPOSIX_FUNC( Pisprint ),
{NULL, NULL}
};
LUALIB_API int
luaopen_posix_ctype(lua_State *L)
{
luaL_newlib(L, posix_ctype_fns);
lua_pushstring(L, LPOSIX_VERSION_STRING("ctype"));
lua_setfield(L, -2, "version");
return 1;
}
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