idek

include/tcpl/tcpl.h

@@ -1,10 +1,26 @@
+/* tcpl.h: global header for the tcpl project.
+   Copyright (C) vxclutch 2026
+
+Written by vxclutch
+
+This file is part of tcpl
+
+Permission to use, copy, modify, and/or distribute this software for any
+purpose with or without fee is hereby granted, provided that the above
+copyright notice and this permission notice appear in all copies.
+
+THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES WITH
+REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
+AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT,
+INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM
+LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR
+OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
+PERFORMANCE OF THIS SOFTWARE. */
 #ifndef TCPL_TCPL_H
 #define TCPL_TCPL_H
-/*
- * This is a header file to be included into every source file that comprises
- * this project.
- * Do #include <tcpl/tcpl.h>
- */
+/* This is a header file to be included into every source file that comprises
+this project.
+Do #include <tcpl/tcpl.h> */
 
 #define unused (void)
 

lib/print.c

@@ -1,10 +1,38 @@
+/* print.c: print functions for tcpl.
+   Copyright (C) vxclutch 2026
+
+Written by vxclutch
+
+This file is part of tcpl
+
+Permission to use, copy, modify, and/or distribute this software for any
+purpose with or without fee is hereby granted, provided that the above
+copyright notice and this permission notice appear in all copies.
+
+THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES WITH
+REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
+AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT,
+INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM
+LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR
+OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
+PERFORMANCE OF THIS SOFTWARE. */
+
 #include "print.h"
 #include <stdio.h>
+#include <stdarg.h>
 #include <tcpl/tcpl.h>
 
-char *arg0 = "";
+char* arg0 = "";
 
-int tcpl_print(char* s)
+int tcpl_print(char* fmt, ...)
 {
-	return printf("%s: %s\n", arg0, s);
+	va_list ap;
+	va_start(ap, fmt);
+
+	printf("%s: ", arg0);
+	int ln = vprintf(fmt, ap);
+	putc('\n', stdout);
+
+	va_end(ap);
+	return ln;
 }

lib/print.h

@@ -1,10 +1,28 @@
+/* print.h: print functions for tcpl.
+   Copyright (C) vxclutch 2026
+
+Written by vxclutch
+
+This file is part of tcpl
+
+Permission to use, copy, modify, and/or distribute this software for any
+purpose with or without fee is hereby granted, provided that the above
+copyright notice and this permission notice appear in all copies.
+
+THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES WITH
+REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
+AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT,
+INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM
+LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR
+OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
+PERFORMANCE OF THIS SOFTWARE. */
 #ifndef TCPL_PRINT_H
 #define TCPL_PRINT_H
 /*
  * Define the print functions for this project
  */
 
-extern char *arg0;
-int tcpl_print(char* s);
+extern char* arg0;
+int tcpl_print(char* fmt, ...);
 
 #endif

src/main.c

@@ -1,5 +1,5 @@
 /* main.c: defines the entry point for tcpl.
-   Copyright (C) vxclutch
+   Copyright (C) vxclutch 2026
 
 Written by vxclutch
 
@@ -22,9 +22,14 @@ PERFORMANCE OF THIS SOFTWARE. */
 
 int main(int argc, char** argv)
 {
-	unused argc;
-
 	arg0 = basename(argv[0]);
-	tcpl_print("Hello, World!");
+
+	if (argc < 2)
+		tcpl_print("Hello, World!");
+	else {
+		for (int i = 1; i < argc; ++i) {
+			tcpl_print("Hello, %s!", argv[i]);
+		}
+	}
 	return 0;
 }

t/basic

@@ -0,0 +1,7 @@
+#!/bin/sh
+
+. t/lib.sh
+
+check "" "tcpl: Hello, World!"
+check "foo" "tcpl: Hello, foo!"
+check "oo" "tcpl: Hello, foo!"

t/lib.sh

@@ -0,0 +1,55 @@
+#!/bin/sh
+
+scriptversion="1"
+me=$(basename "$0")
+version="$me/vxc v$scriptversion
+Copyright (C) 2026 vxc.
+This is free software; you are free to change and redistribute it.
+There is NO WARRANTY, to the extent permitted by law."
+
+usage="Usage: $me [OPTION]... <arg1> <arg2>
+Does a thing
+
+Options:
+--help         print this help and exit
+--version      output version information"
+
+while [ $# -gt 0 ]; do
+	case $1 in
+		--help) echo "$usage"; exit 0 ;;
+		--version) echo "$version"; exit 0 ;;
+		-*) echo "$me: Unknown option '$1'." >&2; exit 1 ;;
+		*) break ;;
+	esac
+	shift
+done
+
+width=$(tput cols 2>/dev/null || echo 80)
+
+INFO="\e[0;34m"
+RESET="\e[0m"
+OK="\e[0;32m"
+BAD="\e[0;31m"
+
+good() {
+	printf "%$((${width}))s\r%s...\n" "$(echo -e "$INFO[ ${OK}ok $INFO]$RESET")" "$1"
+}
+
+fail() {
+	printf "%$((${width}))s\r%s...\n" "$(echo -e "$INFO[${BAD}fail$INFO]$RESET")" "$1"
+}
+
+make -s
+
+check() {
+	expected=$2
+	output=$(./tcpl $1) || { fail "$1 (execution failed)"; return 1; }
+
+	if [ "$output" = "$expected" ]; then
+		good "./tcpl $1"
+		return 0
+	else
+		fail "./tcpl $1: unexpected: $output; wanted: $expected"
+		return 1
+	fi
+}