node_modules/prismjs/tests/languages/c/macro_feature.test

# include <stdio.h>
  #define PG_locked 0

#elif
#else
#endif
#error
#ifdef
#ifndef
#if
#import
#include
#line
#pragma
#undef
#using

----------------------------------------------------

[
	["macro", [
		"# ", ["directive", "include"],
		["string", "<stdio.h>"]
	]],
	["macro", ["#", ["directive", "define"], " PG_locked 0"]],
	["macro", ["#", ["directive", "elif"]]],
	["macro", ["#", ["directive", "else"]]],
    ["macro", ["#", ["directive", "endif"]]],
    ["macro", ["#", ["directive", "error"]]],
    ["macro", ["#", ["directive", "ifdef"]]],
    ["macro", ["#", ["directive", "ifndef"]]],
    ["macro", ["#", ["directive", "if"]]],
    ["macro", ["#", ["directive", "import"]]],
    ["macro", ["#", ["directive", "include"]]],
    ["macro", ["#", ["directive", "line"]]],
    ["macro", ["#", ["directive", "pragma"]]],
    ["macro", ["#", ["directive", "undef"]]],
    ["macro", ["#", ["directive", "using"]]]
]

----------------------------------------------------

Checks for macros, multi-line macros and paths inside include statements.