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95 lines
2.0 KiB
PHP
95 lines
2.0 KiB
PHP
<?php
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/*
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* CVM is more free software. It is licensed under the WTFPL, which
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* allows you to do pretty much anything with it, without having to
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* ask permission. Commercial use is allowed, and no attribution is
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* required. We do politely request that you share your modifications
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* to benefit other developers, but you are under no enforced
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* obligation to do so :)
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*
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* Please read the accompanying LICENSE document for the full WTFPL
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* licensing text.
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*/
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if(!isset($_APP)) { die("Unauthorized."); }
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function split_whitespace($input)
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{
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return preg_split("/\s+/", $input);
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}
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function split_lines($input)
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{
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$lines = explode("/n", $input);
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foreach($lines as &$line)
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{
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$line = trim($line);
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}
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return $lines;
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}
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function shrink_command($command)
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{
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$command = preg_replace("/(\t+|\n)/", " ", $command);
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$command = str_replace("/r", "", $command);
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return $command;
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}
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function parse_size($size, $multiplier = 1024)
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{
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/* Note that this function will always assume bytes and the given multiplier, regardless of
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* what is actually specified. */
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if(preg_match("/(-?[0-9.,]+)\s*(([kKmMgGtTpPeEzZyY]?)([iI]?)([bB]?))/", $size, $matches))
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{
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$number = (float) $matches[1];
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$unit = $matches[2];
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$prefix = $matches[3];
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$suffix = $matches[5];
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if(empty($prefix))
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{
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/* Size is in bytes. */
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return $number;
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}
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else
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{
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switch(strtolower($prefix))
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{
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case "y":
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$number = $number * $multiplier;
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case "z":
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$number = $number * $multiplier;
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case "e":
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$number = $number * $multiplier;
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case "p":
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$number = $number * $multiplier;
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case "t":
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$number = $number * $multiplier;
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case "g":
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$number = $number * $multiplier;
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case "m":
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$number = $number * $multiplier;
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case "k":
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$number = $number * $multiplier;
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break;
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default:
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throw new ParsingException("No valid unit was specified.");
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}
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return $number;
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}
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}
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elseif(is_numeric($size))
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{
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return (int) $size;
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}
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else
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{
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throw new ParsingException("The given size specification could not be parsed.");
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}
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}
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?>
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