struct arg_rex* arg_rex1(const char* shortopts,
const char* longopts,
const char* pattern,
const char *datatype,
int flags,
const char *glossary)
{
return arg_rexn(shortopts,longopts,pattern,datatype,1,1,flags,glossary);
}
int main(int argc, char **argv)
{
struct arg_rex *a = arg_rex0("a", NULL, "hello", NULL , 0, "blah blah");
struct arg_rex *b = arg_rex1(NULL, "beta", "[Ww]orld", NULL , 0, "blah blah");
struct arg_rex *c = arg_rexn(NULL, NULL, "goodbye", NULL , 1,5, REG_ICASE, "blah blah");
struct arg_rex *d = arg_rex0(NULL, NULL, "any.*", NULL , REG_ICASE, "blah blah");
struct arg_lit *help = arg_lit0(NULL,"help","print this help and exit");
struct arg_end *end = arg_end(20);
void* argtable[] = {a,b,c,d,help,end};
int nerrors;
int exitcode=0;
int i;
/* print the command line */
for (i=0; i<argc; i++)
printf("%s ",argv[i]);
printf("\n");
/* verify the argtable[] entries were allocated sucessfully */
if (arg_nullcheck(argtable) != 0)
{
/* NULL entries were detected, some allocations must have failed */
printf("%s: insufficient memory\n",argv[0]);
exitcode=1;
goto exit;
}
/* Parse the command line as defined by argtable[] */
nerrors = arg_parse(argc,argv,argtable);
/* special case: '--help' takes precedence over error reporting */
if (help->count > 0)
{
printf("Usage: %s ", argv[0]);
arg_print_syntax(stdout,argtable,"\n");
arg_print_glossary(stdout,argtable," %-25s %s\n");
exitcode=0;
goto exit;
}
/* If the parser returned any errors then display them and exit */
if (nerrors > 0)
{
/* Display the error details contained in the arg_end struct.*/
arg_print_errors(stdout,end,"syntax error");
exitcode=1;
goto exit;
}
for (i=0; i<a->count; i++)
printf("a->sval[%d] = \"%s\"\n", i, a->sval[i] );
for (i=0; i<b->count; i++)
printf("b->sval[%d] = \"%s\"\n", i, b->sval[i] );
for (i=0; i<c->count; i++)
printf("c->sval[%d] = \"%s\"\n", i, c->sval[i] );
for (i=0; i<d->count; i++)
printf("d->sval[%d] = \"%s\"\n", i, d->sval[i] );
exit:
/* deallocate each non-null entry in argtable[] */
arg_freetable(argtable,sizeof(argtable)/sizeof(argtable[0]));
printf("exitcode=%d\n\n",exitcode);
return exitcode;
}
