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#define _POSIX_C_SOURCE 200809L
#include <ctype.h>
#include <string.h>
#include <unistd.h>
#define EXEC1(args) execvp(args[0], args)
#define EXEC(...) EXEC1(((char *const []){ __VA_ARGS__, NULL }))
static const char *extension(const char *filename);
int
main(int argc, char *argv[])
{
int opt;
while ((opt = getopt(argc, argv, "")) != -1)
return 1;
argc -= optind;
argv += optind;
if (argc != 1)
return 1;
const char *ext = extension(argv[0]);
if (ext == NULL)
return 1;
if (strlen(ext) == 1 && isdigit(*ext)) {
EXEC("mandoc", "-Thtml", "-Ofragment", "-Ios=");
} else if (strcmp(ext, "md") == 0) {
EXEC("lowdown", "-Thtml");
}
return 1;
}
static const char *
extension(const char *filename)
{
const char *end = strrchr(filename, '.');
// no dot
if (end == NULL)
return NULL;
// no extension
if (end == filename)
return NULL;
const char *ext = end + 1;
// extension is empty/name ends with dot
if (*ext == '\0')
return NULL;
return ext;
}
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