#!/bin/sh

if [ $# -ne 0 ]; then
	cat<<EOF>&2
Usage: ${0##*/}

A therme vierwer for 'highlight', a listing pretty-printer.

This script runs over every single theme. A 256-color terminal is required.

EOF
	exit
fi

if ! command -v highlight >/dev/null 2>&1; then
	echo >&2 "'highlight' not found"
	exit 1
fi

SAMPLE="$(cat <<EOF
void function(char *pointer, int &ref) {
	int integer=3;
	char* string="Hello!";

	// Line comment
	for (i=0; i<10; i++)
	{
		printf("Sum: %d\n", i*( integer+14 ) );
	}
}
EOF
)"

echo "Press ENTER to view next, Ctrl-c to exit."
for i in $(highlight -w | awk '!flag && NF == 1  {flag=1; print; next} !flag {next} NF != 1 {exit} 1'); do
	echo "==> $i"
	echo "$SAMPLE" | highlight -S c -O xterm256 -s "$i"
	read DUMMY
done