Blame ext/posix/ctype.c

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/*
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 * POSIX library for Lua 5.1, 5.2 & 5.3.
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 * (c) Gary V. Vaughan <gary@vaughan.pe>, 2013-2015
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 * (c) Reuben Thomas <rrt@sc3d.org> 2010-2013
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 * (c) Natanael Copa <natanael.copa@gmail.com> 2008-2010
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 * Clean up and bug fixes by Leo Razoumov <slonik.az@gmail.com> 2006-10-11
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 * Luiz Henrique de Figueiredo <lhf@tecgraf.puc-rio.br> 07 Apr 2006 23:17:49
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 * Based on original by Claudio Terra for Lua 3.x.
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 * With contributions by Roberto Ierusalimschy.
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 * With documentation from Steve Donovan 2012
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 */
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/***
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 Character tests.
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@module posix.ctype
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*/
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#include <config.h>
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#include <ctype.h>
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#include "_helpers.c"
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static int
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bind_ctype(lua_State *L, int (*cb)(int))
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{
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	const char *s = luaL_checkstring(L, 1);
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	char c = *s;
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	checknargs(L, 1);
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	lua_pop(L, 1);
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	return pushintresult(cb((int)c));
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}
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/***
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Check for any printable character except space.
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@function isgraph
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@see isgraph(3)
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@string character to act on
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@treturn int non-zero if character is not in the class
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*/
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static int
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Pisgraph(lua_State *L)
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{
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	return bind_ctype(L, &isgraph);
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}
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/***
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Check for any printable character including space.
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@function isprint
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@string character to act on
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@treturn int non-zero if character is not in the class
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@see isprint(3)
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*/
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static int
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Pisprint(lua_State *L)
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{
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	return bind_ctype(L, &isprint);
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}
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static const luaL_Reg posix_ctype_fns[] =
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{
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	LPOSIX_FUNC( Pisgraph		),
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	LPOSIX_FUNC( Pisprint		),
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	{NULL, NULL}
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};
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LUALIB_API int
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luaopen_posix_ctype(lua_State *L)
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{
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	luaL_register(L, "posix.ctype", posix_ctype_fns);
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	lua_pushliteral(L, "posix.ctype for " LUA_VERSION " / " PACKAGE_STRING);
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	lua_setfield(L, -2, "version");
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	return 1;
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}