includes/composer/ComposerVersionNormalizer.php

   1 <?php
   2
   3 /**
   4  * @license GNU GPL v2+
   5  * @author Jeroen De Dauw < jeroendedauw@gmail.com >
   6  */
   7 class ComposerVersionNormalizer {
   8
   9         /**
  10          * Ensures there is a dash in between the version and the stability suffix.
  11          *
  12          * Examples:
  13          * - 1.23RC => 1.23-RC
  14          * - 1.23alpha => 1.23-alpha
  15          * - 1.23alpha3 => 1.23-alpha3
  16          * - 1.23-beta => 1.23-beta
  17          *
  18          * @param string $version
  19          *
  20          * @return string
  21          * @throws InvalidArgumentException
  22          */
  23         public function normalizeSuffix( $version ) {
  24                 if ( !is_string( $version ) ) {
  25                         throw new InvalidArgumentException( '$version must be a string' );
  26                 }
  27
  28                 return preg_replace( '/^(\d[\d\.]*)([a-zA-Z]+)(\d*)$/', '$1-$2$3', $version, 1 );
  29         }
  30
  31         /**
  32          * Ensures the version has four levels.
  33          * Version suffixes are supported, as long as they start with a dash.
  34          *
  35          * Examples:
  36          * - 1.19 => 1.19.0.0
  37          * - 1.19.2.3 => 1.19.2.3
  38          * - 1.19-alpha => 1.19.0.0-alpha
  39          * - 1337 => 1337.0.0.0
  40          *
  41          * @param string $version
  42          *
  43          * @return string
  44          * @throws InvalidArgumentException
  45          */
  46         public function normalizeLevelCount( $version ) {
  47                 if ( !is_string( $version ) ) {
  48                         throw new InvalidArgumentException( '$version must be a string' );
  49                 }
  50
  51                 $dashPosition = strpos( $version, '-' );
  52
  53                 if ( $dashPosition !== false ) {
  54                         $suffix = substr( $version, $dashPosition );
  55                         $version = substr( $version, 0, $dashPosition );
  56                 }
  57
  58                 $version = implode( '.', array_pad( explode( '.', $version ), 4, '0' ) );
  59
  60                 if ( $dashPosition !== false ) {
  61                         $version .= $suffix;
  62                 }
  63
  64                 return $version;
  65         }
  66 }