PAL.C.T MINI SHELL
<?php
/**
* Parse command line options
*
*/
class gtCommandLineOptions {
protected $shortOptions = array(
'b',
'e',
'v',
'h',
);
protected $shortOptionsWithArgs = array(
'c',
'm',
'f',
'i',
's',
'x',
'k',
);
protected $options;
protected function isShortOption($arg)
{
return (substr($arg, 0, 1) == '-') && (substr($arg, 1, 1) != '-');
}
public function isValidOptionArg($array, $index) {
if (!isset($array[$index]))
{
return false;
}
return substr($array[$index], 0, 1) != '-';
}
public function parse($argv)
{
if(count($argv) < 2) {
throw new gtMissingOptionsException('Command line options are required');
}
for ($i=1; $i<count($argv); $i++) {
if ($this->isShortOption($argv[$i])) {
$option = substr($argv[$i], 1);
} else {
throw new gtUnknownOptionException('Unrecognised command line option ' . $argv[$i]);
}
if (!in_array($option, array_merge($this->shortOptions, $this->shortOptionsWithArgs)))
{
throw new gtUnknownOptionException('Unknown option ' . $argv[$i]);
}
if (in_array($option, $this->shortOptions)) {
$this->options[$option] = true;
continue;
}
if (!$this->isValidOptionArg($argv, $i + 1))
{
throw new gtMissingArgumentException('Missing argument for command line option ' . $argv[$i]);
}
$i++;
$this->options[$option] = $argv[$i];
}
}
/**
*
*/
public function getOption($option)
{
if (!isset($this->options[$option])) {
return false;
}
return $this->options[$option];
}
/**
* Check whether an option exists
*/
public function hasOption($option)
{
return isset($this->options[$option]);
}
}
?>
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