Refactor the code to make less unnecessaty calls

There were multiple calls made to the cleaning method that were unnecessary since it is useful only on the last call.
It allows to simplify code by returning values ealier.

app/Models/Search.php

@@ -32,7 +32,7 @@ class FreshRSS_Search {
 		$input = $this->parsePubdateSearch($input);
 		$input = $this->parseDateSearch($input);
 		$input = $this->parseTagsSeach($input);
-		$this->search = $input;
+		$this->search = $this->cleanSearch($input);
 	}
 
 	public function getRawInput() {
@@ -86,12 +86,13 @@ class FreshRSS_Search {
 	private function parseIntitleSearch($input) {
 		if (preg_match('/intitle:(?P<delim>[\'"])(?P<search>.*)(?P=delim)/U', $input, $matches)) {
 			$this->intitle = $matches['search'];
-			$input = str_replace($matches[0], '', $input);
-		} else if (preg_match('/intitle:(?P<search>\w*)/', $input, $matches)) {
+			return str_replace($matches[0], '', $input);
+		}
+		if (preg_match('/intitle:(?P<search>\w*)/', $input, $matches)) {
 			$this->intitle = $matches['search'];
-			$input = str_replace($matches[0], '', $input);
+			return str_replace($matches[0], '', $input);
 		}
-		return $this->cleanSearch($input);
+		return $input;
 	}
 
 	/**
@@ -107,12 +108,13 @@ class FreshRSS_Search {
 	private function parseAuthorSearch($input) {
 		if (preg_match('/author:(?P<delim>[\'"])(?P<search>.*)(?P=delim)/U', $input, $matches)) {
 			$this->author = $matches['search'];
-			$input = str_replace($matches[0], '', $input);
-		} else if (preg_match('/author:(?P<search>\w*)/', $input, $matches)) {
+			return str_replace($matches[0], '', $input);
+		}
+		if (preg_match('/author:(?P<search>\w*)/', $input, $matches)) {
 			$this->author = $matches['search'];
-			$input = str_replace($matches[0], '', $input);
+			return str_replace($matches[0], '', $input);
 		}
-		return $this->cleanSearch($input);
+		return $input;
 	}
 
 	/**
@@ -126,9 +128,9 @@ class FreshRSS_Search {
 	private function parseInurlSearch($input) {
 		if (preg_match('/inurl:(?P<search>[^\s]*)/', $input, $matches)) {
 			$this->inurl = $matches['search'];
-			$input = str_replace($matches[0], '', $input);
+			return str_replace($matches[0], '', $input);
 		}
-		return $this->cleanSearch($input);
+		return $input;
 	}
 
 	/**
@@ -142,9 +144,9 @@ class FreshRSS_Search {
 	private function parseDateSearch($input) {
 		if (preg_match('/date:(?P<search>[^\s]*)/', $input, $matches)) {
 			list($this->min_date, $this->max_date) = parseDateInterval($matches['search']);
-			$input = str_replace($matches[0], '', $input);
+			return str_replace($matches[0], '', $input);
 		}
-		return $this->cleanSearch($input);
+		return $input;
 	}
 
 	/**
@@ -158,9 +160,9 @@ class FreshRSS_Search {
 	private function parsePubdateSearch($input) {
 		if (preg_match('/pubdate:(?P<search>[^\s]*)/', $input, $matches)) {
 			list($this->min_pubdate, $this->max_pubdate) = parseDateInterval($matches['search']);
-			$input = str_replace($matches[0], '', $input);
+			return str_replace($matches[0], '', $input);
 		}
-		return $this->cleanSearch($input);
+		return $input;
 	}
 
 	/**
@@ -174,11 +176,17 @@ class FreshRSS_Search {
 	private function parseTagsSeach($input) {
 		if (preg_match_all('/#(?P<search>[^\s]+)/', $input, $matches)) {
 			$this->tags = $matches['search'];
-			$input = str_replace($matches[0], '', $input);
+			return str_replace($matches[0], '', $input);
 		}
-		return $this->cleanSearch($input);
+		return $input;
 	}
 
+	/**
+	 * Remove all unnecessary spaces in the search
+	 *
+	 * @param string $input
+	 * @return string
+	 */
 	private function cleanSearch($input) {
 		$input = preg_replace('/\s+/', ' ', $input);
 		return trim($input);