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/*
* UNG's Not GNU
*
* Copyright (c) 2022, Jakob Kaivo <jkk@ung.org>
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*/
/* TODO: Track down XPG/3 or 4 to get a more accurate description of requirements */
#define _POSIX_C_SOURCE 2
#include <ctype.h>
#include <limits.h>
#include <locale.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#define CHARACTER_WIDTH 9
#define CHARACTER_HEIGHT 8
static char letters[UCHAR_MAX][CHARACTER_HEIGHT][CHARACTER_WIDTH] = {
['a'] = { " ",
" ",
" aaa ",
" a ",
" aaaa ",
" a a ",
" aaa a ",
" ", },
['b'] = { " ",
" b ",
" b ",
" b ",
" bbbbb ",
" b b ",
" bbbbb ",
" " },
};
static void banner(char *s, size_t columns)
{
size_t slen = strlen(s);
for (size_t i = 0; i < slen; i++) {
if (!isprint(s[i]) || s[i] < 0 || i > UCHAR_MAX) {
s[i] = '?';
}
}
for (size_t row = 0; row < CHARACTER_HEIGHT; row++) {
for (size_t i = 0; i < columns / CHARACTER_WIDTH && i < slen; i++) {
fputs(letters[(size_t)s[i]][row], stdout);
}
putchar('\n');
}
}
int main(int argc, char *argv[])
{
setlocale(LC_ALL, "");
int c;
while ((c = getopt(argc, argv, "")) != -1) {
switch(c) {
default:
return 1;
}
}
if (optind >= argc) {
fprintf(stderr, "banner: missing operands\n");
return 1;
}
size_t columns = 80;
char *colenv = getenv("COLUMNS");
if (colenv) {
columns = atoi(colenv);
}
while (optind < argc) {
banner(argv[optind++], columns);
}
return 0;
}
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