cgit-about-filter: Invoke filters in-line0.1.1

Previously, EXEC relied on filter invocations being stored globally in a
char * array. Use an improved variadic version of the macro that enables
us to get rid of those global definitions and instead invoke filters
in-line.

1 files changed, 4 insertions, 6 deletions

diff --git a/cgit-about-filter.c b/cgit-about-filter.c
index 68dfd9b..02b6043 100644
--- a/cgit-about-filter.c
+++ b/cgit-about-filter.c
@@ -4,13 +4,11 @@
 #include <string.h>
 #include <unistd.h>
 
-#define EXEC(args) execvp(args[0], args)
+#define EXEC1(args) execvp(args[0], args)
+#define EXEC(...) EXEC1(((char *const []){ __VA_ARGS__, NULL }))
 
 static const char *extension(const char *filename);
 
-char *mandoc[] = { "mandoc", "-Thtml", "-Ofragment", NULL };
-char *lowdown[] = { "lowdown", "-Thtml", NULL };
-
 int
 main(int argc, char *argv[])
 {
@@ -28,9 +26,9 @@ main(int argc, char *argv[])
 		return 1;
 
 	if (strlen(ext) == 1 && isdigit(*ext)) {
-		EXEC(mandoc);
+		EXEC("mandoc", "-Thtml", "-Ofragment");
 	} else if (strcmp(ext, "md") == 0) {
-		EXEC(lowdown);
+		EXEC("lowdown", "-Thtml");
 	}
 
 	return 1;