<?php

function getConf(&$conf,&$confFP) {
	$errors=[];
	$nconf=[];
	$buff=@file($confFP,FILE_IGNORE_NEW_LINES|FILE_SKIP_EMPTY_LINES);
	if ($buff===false) dieYoung("Error: could not read configuration file «$confFP}».\n",1);
	$i=0;
	foreach ($buff as $line) {
		$i++;
		if ($line[0]!=='#') {
			if (preg_match('#^([^=]+)=(.+)$#',$line,$matches)===1) {
				$matches[1]=trim($matches[1]);
				$matches[2]=trim($matches[2]);
				if (array_key_exists($matches[1],$conf))
					$nconf[$matches[1]]=$matches[2];
				else
					$errors[]="line {$i}: «{$matches[1]}» is an unknown key";
			} else {
				$errors[]="could not interpret line {$i} («{$line}»)";
			}
		}
	}
	//print_r($nconf);
	foreach ($conf as $key=>$val) {
		if ($conf[$key]['required'] && !array_key_exists($key,$nconf))
			$errors[]="«{$key}» is not defined";
		if (array_key_exists($key,$nconf))
			$conf[$key]=$nconf[$key];
		else
			$conf[$key]=$conf[$key]['default'];
	}
	$errorsCount=count($errors);
	if ($errorsCount>0) {
		fwrite(STDERR,"Sorry, there are errors in configuration file «{$confFP}»:\n");
		for ($i=1; $i<=$errorsCount; $i++)
			fwrite(STDERR," {$i}. {$errors[$i-1]}\n");
		fwrite(STDERR,"Use «-h» or «--help» to display help.\n");
		exit(1);
	}
}

?>