/* Copyright (C) 2004
 * Andy Goth <unununium@openverse.com>
 *
 * This code is available under the GNU General Public License; see COPYING. */

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

int main(int argc, char** argv)
{
    int reverse;
    int i, ret;
    unsigned char c, buf[4096];

    while (1) {
        ret = read(0, buf, 4096);

        if (ret == -1) {
            perror("read");
            return EXIT_FAILURE;
        } else if (ret == 0) {
            return EXIT_SUCCESS;
        } else {
            /* Fall through. */
        }

        for (i = 0; i < ret; ++i) {
            switch (c = buf[i]) {
            case '\n':                        break;
            case '\r':                        break;
            case ' ' : write(1, "&nbsp;", 6); break;
            case '<' : write(1, "&lt;"  , 4); break;
            case '>' : write(1, "&gt;"  , 4); break;
            case '&' : write(1, "&amp;" , 5); break;
            default  : write(1, &c      , 1); break;
            }
        }
    }

    return EXIT_SUCCESS;
}

/* vim: set ts=4 sts=4 sw=4 tw=80 et: */