special functions : corrects the punctuation

Hello,

I wanted to share a special directory functions, it corrects the punctuation of a description.

Here is what the correct punctuation:

- Put a space after a period, a semicolon ... and one capitalize the word following point
- Put a space after a comma
- Puts a majucule to main content
- Removes spaces at the beginning and end of string

The + + +

- Does not affect the 3 series or 2 points (...)
- Does not affect smileys
- Does not affect the number of signs ?!?!?
- Does not affect the single and double odds "and"
- Does not affect the HTML
- Does not affect the URLs (because the correction is not running)
- Does not include email addresses (because the correction is not running)
- Does not affect Tel No: 01.04.01 ...
- Does not affect the number 0.10 ...

<?php
function corrige_ponctuation($chaine) {

/*****************************************************************************/
/* initialization                                                       */
/*****************************************************************************/


  $signes = array(".","!","?",",",":",";");
  $signes_connexe = array('"',")",">","'");
  $i=0;
  $taille_chaine = strlen( $chaine );

  $masque_url  = '#';
  $masque_url .= '([http|ftp|https]+://';
  $masque_url .= '[www\.]?';
  $masque_url .= '[\.\-a-zA-Z0-9]*';
  $masque_url .= '[a-zA-Z]{2,4}?';
  $masque_url .= '[\?/\=\&\-_.a-zA-Z0-9]+?';
 

  $masque_url .= '[\?/\=\&\-_.a-zA-Z0-9]+?';


  $masque_url .= '[\?/\=\&\-_.a-zA-Z0-9]+)';
  $masque_url .= '#i';


  $masque_email  = '#';
  $masque_email .= "[_a-zA-Z0-9-]+(\.[_a-zA-Z0-9-]+)*";
  $masque_email .= "@([a-zA-Z0-9-]+\.)+([a-zA-Z]{2,4})+";
  $masque_email .= '#';

/*****************************************************************************/
/*If 1 url or 1 email address is in the text, the correction stop */
/*****************************************************************************/

if (!preg_match_all($masque_url,$chaine,$match_1) and
    !preg_match_all($masque_email,$chaine,$match_2)
   )
{
/*****************************************************************************/
/* beginning of the correction                                                  */
/*****************************************************************************/

  while ( $i < $taille_chaine )
    {
    // met la premiere lettre du texte en majuscule
    if ($i==0) $chaine[$i] = strtoupper($chaine[$i]);
    // capture la chaine deja analysée
    $capture .= $chaine[$i];


/*****************************************************************************/
/* correct punctuation                                             */
/*****************************************************************************/

     
      if( in_array($chaine[$i],$signes )
               and $chaine[$i+1] != ' '
               and !is_numeric( $chaine[$i+1] )
               and !is_numeric( $chaine[$i-1] )
               and ($chaine[$i+1] < $taille_chaine)
               and ($chaine[$i+1] != '.')
               and ($chaine[$i+1] != in_array($chaine[$i+1],$signes ))
               and ($chaine[$i+1] != in_array($chaine[$i+1],$signes_connexe ))
                                       )
       {
        $capture_trans = $capture.' ';
        // insere le point + 1 espace
        $chaine = str_replace( $capture, $capture_trans, $chaine );

        // met la lettre en majuscule si on ne traite pas une virgule
        if($chaine[$i] != ',')
        $chaine[$i+2] = strtoupper($chaine[$i+2]);
       }

/*****************************************************************************/
/* puts a capital letter after a sign                                          */
/*****************************************************************************/
     if (in_array($chaine[$i],$signes ) and ($chaine[$i+1] == ' ')
                                        and ($chaine[$i] != ',') )
      $chaine[$i+2] = strtoupper($chaine[$i+2]);

      $i++;
    }
    return trim($chaine);
   }
  }
/*****************************************************************************/
/* test                                                                      */
/*****************************************************************************/

// pour l'utiliser : 

   echo corrige_ponctuation($texte);


?>

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