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137 jpm 1
<?php
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class Surligneur {
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	private $texte = '';
202 delphine 4
	private $texteSansAccent = '';
137 jpm 5
	private $tags = array();
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	private $nbreSurlignageMaxParMot = 1;
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	private $nbreSurlignageCourant = 0;
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207 delphine 9
	public function __construct($texte = null, $surlignageMaxParMot = null) {
137 jpm 10
		if (is_null($texte) == false) {
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			$this->setTexte($texte);
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		}
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		if (is_null($surlignageMaxParMot) == false) {
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			$this->setNbreMaxSurlignageParMot($surlignageMaxParMot);
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		}
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	}
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	public function setTexte($txt) {
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		$this->texte = $txt;
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	}
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	public function setNbreMaxSurlignageParMot($nbre) {
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		$this->nbreSurlignageMaxParMot = $nbre;
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	}
821 mathilde 25
 
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	function supprimerAccents($chaine){
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		return strtr($chaine,array('à' => 'a','á' => 'a','â' => 'a','ã' => 'a','ä' => 'a',
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											'ç' => 'c',
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											'è' => 'e','é' => 'e','ê' => 'e','ë' => 'e',
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											'ì' => 'i','í' => 'i','î' => 'i','ï' => 'i',
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											'ñ' => 'n',
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											'ò' => 'o', 'ó' => 'o' , 'ô' => 'o', 'õ' => 'o', 'ö' => 'o',
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											'ù' => 'u', 'ú' => 'u', 'û' => 'u', 'ü' => 'u',
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											'ý' => 'y', 'ÿ' => 'y'));
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	}
137 jpm 36
 
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	public function surlignerMots($mots) {
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		$this->verifierTableauDeMots($mots);
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		$this->texte = preg_replace_callback('`<[^>]+>`', array($this, 'sauverTags'), $this->texte);
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		foreach ($mots as $mot) {
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			$this->initialiserNbreSurlignageCourant();
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			$this->texte = $this->surlignerMot($mot);
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		}
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		$this->texte = preg_replace_callback('`<([0-9]+)>`', array($this, 'restaurerTags'), $this->texte);
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		return $this->texte;
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	}
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	private function verifierTableauDeMots($mots) {
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		if (is_array($mots) === false) {
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			$message = "Surligneur::surlignerMots() n'accepte que les tableaux de mots en argument";
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			throw new InvalidArgumentException($message);
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		} else {
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			if (count($mots) == 0) {
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				$message = "Surligneur::surlignerMots() n'accepte que des tableaux contenant au moins un mot";
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				throw new LengthException($message);
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			}
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		}
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	}
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	private function sauverTags($match) {
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		$i = count($this->tags);
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		$this->tags[$i] = $match[0];
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		return '<'.$i.'>';
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	}
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	private function initialiserNbreSurlignageCourant() {
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		$this->nbreSurlignageCourant = 0;
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	}
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	private function surlignerMot($mot) {
207 delphine 71
		$positionDebutMot = stripos($this->texte, $mot);
137 jpm 72
		$longueurMot = strlen($mot);
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		$surlignage = $this->texte;
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		if ($positionDebutMot !== false) {
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			$this->nbreSurlignageCourant++;
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			if ($this->nbreSurlignageCourant <= $this->nbreSurlignageMaxParMot) {
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				$debut = substr($this->texte, 0, $positionDebutMot);
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				$milieu = substr($this->texte, $positionDebutMot, $longueurMot);
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				$this->texte = substr($this->texte, $positionDebutMot + $longueurMot);
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				$fin = $this->surlignerMot($mot);
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				$surlignage = $debut.$this->sauverTagSurlignage($milieu).$fin;
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			}
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		}
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		return $surlignage;
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	}
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	private function sauverTagSurlignage($motTrouve) {
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		$i = count($this->tags);
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		$this->tags[$i] = '<span class="surlignage">'.$motTrouve.'</span>';
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		return '<'.$i.'>';
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	}
202 delphine 92
 
137 jpm 93
	private function restaurerTags($match) {
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		return $this->tags[$match[1]];
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	}
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}
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?>