Online PHP editor | rfc for 6Ftpb

@ 2016-09-21T00:41:13Z

<?php

$tests = [
    'bar 3 m foo',          // -
    '5s 4m',          // -
    '5s 10mins 4 days',          // -
    'bass drop 2 d bare',   // -
    '2 3 m foo foo',        // -
    '1 222 4 d baz',        // -
    '5d 4h 3m 2s',          // -    
    '2 d 3 m baz',          // +
    '5d 4h 3m 2s foo',      // +
    '2 s foo',              // +
    '222 h baz bar',        // +    
    '1 mon foo',            // + mon for month?
    '1w bar',               // +
    '1 month baz',          // +
    '2 months foobar',      // +
    '4 months 2 months foo' // + repeating same string is allowed by strtotime, though it sums up
];

/*
* Replaces (s|m|h|d|w|mon) with strtotime compatible abbreviations
*
* ps. (?&int) is there so it doesn't replace the 's' in 'months' etc.
*
* @param array $tests
* @return array
*/
function normalizeTimeSpec($tests) {
    $reg1 = "/(?<int> (?:\G|(?!\n)) \s*\b \d{1,5} \s* )\K
              (?<time> (?: s|m(on)?|h|d|w)\b )
             /uix";
    
    $array = [];

    foreach($tests as $case){
        
        $out = preg_replace_callback ($reg1, 
            function($matches){
                switch($matches['time']){
                    case 's': $t = 'sec'; break;
                    case 'm': $t = 'min'; break;
                    case 'h': $t = 'hour'; break;
                    case 'd': $t = 'day'; break;
                    case 'w': $t = 'week'; break;
                    case 'mon': $t = 'month'; break;
                }
                return $t;
            }, $case);
            
        $array[] = $out;
    }
    
    return $array;
}

/*
* Test whether given time string passes regex rules & match
* @param array $tests
* @return array
*/
function testTimeSpec($tests){
    $finalArray = [];
    
    $regex = <<<'REGEX'
    /(?(DEFINE)
      (?<int>
        (\s*\b)?
        (\d{1,5})?
        (\s*)?
      )
      (?<timepart>
        (?&int)
        ( s(ec(ond)?s?)?
        | m(in(ute)?s?|onths?)?
        | h(rs?|ours?)?
        | d(ays?)?
        | w(eeks?)?
        )
        \b
      )
     )
    
     ^(?<time>
       (?:(?&timepart)(*SKIP).)+
     )
     (?<string>.+)$
     /uix
REGEX;

    foreach($tests as $case){
        
        if(preg_match($regex, $case, $matches)){
            $finalArray[] = $matches['time'].$matches['string'];
        }
        
    }
    return $finalArray;
}

print_r(normalizeTimeSpec($tests));
print_r(testTimeSpec(normalizeTimeSpec($tests)));

Output for git.master, git.master_jit, rfc.property-hooks: Array ( [0] => bar 3 m foo [1] => 5sec 4min [2] => 5sec 10mins 4 days [3] => bass drop 2 d bare [4] => 2 3 m foo foo [5] => 1 222 4 d baz [6] => 5day 4hour 3min 2sec [7] => 2 day 3 min baz [8] => 5day 4hour 3min 2sec foo [9] => 2 sec foo [10] => 222 hour baz bar [11] => 1 month foo [12] => 1week bar [13] => 1 month baz [14] => 2 months foobar [15] => 4 months 2 months foo ) Array ( [0] => 2 day 3 min baz [1] => 5day 4hour 3min 2sec foo [2] => 2 sec foo [3] => 222 hour baz bar [4] => 1 month foo [5] => 1week bar [6] => 1 month baz [7] => 2 months foobar [8] => 4 months 2 months foo )

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