/*
 * simple URL encoder
 * spd, 2001 - may 2026
 */

#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include <errno.h>

static char __ident[] = "@(#)(c)SPDsoft, May 5, 2026";
#define VERS_STR        ((char*)&__ident[4])
#define PATH_SEP        '/'

void	usage(void);
char	*app;

void usage(void)
{
	fprintf(stderr,"Use: %s [-ha]\n", app);
	fprintf(stderr,"%s: -a : only non ascci chars\n", app);
	exit(0);
}

int main( int argc, char *argv[])
{
	int opt;
	extern char     *optarg;
	extern int      optind,opterr;
	unsigned char c;
	int all = 1;


	if ((app = strrchr(argv[0], PATH_SEP))  != NULL)
		app = app+1;
	else
		app = argv[0];
	
	while ( (opt=getopt(argc,argv,"ah")) != EOF )
	{
		switch(opt)
		{
			case 'a':
				all=0;
				break;
			case 'h':
			default:
				usage();
				break;
		}
	}


	if (!all)
	{
		for( c=getchar(); (!feof(stdin)); c=getchar())
		{
			if ( c == ' ' )
			{
				printf("%c", '+');
			} else if (
				(( c >= 'a' ) &&  ( c <= 'z' )) ||
				(( c >= 'A' ) &&  ( c <= 'Z' )) ||
				(( c >= '0' ) &&  ( c <= '9' )) ||
				( c == '\n' ) ||
				( c == '=' ) ||
				( c == '-' ) ||
				( c == '+' ) ||
				( c == '&' ) )
			{
				printf("%c",c);
			} else 
			{
				printf("%%%0.2X",c);
			}
		}
	}
	else
	{
		for( c=getchar(); (!feof(stdin)); c=getchar())
			printf("%%%0.2X",c);
	}
}