diff --git a/functions-formatting.php b/functions-formatting.php
deleted file mode 100644
index 83fc396..0000000
--- a/functions-formatting.php
+++ /dev/null
@@ -1,798 +0,0 @@
-<?php
-/*
- * YOURLS
- * Function library for anything related to formatting / validating / sanitizing
- */
-
-/**
- * Convert an integer (1337) to a string (3jk).
- *
- * @param int $num       Number to convert
- * @param string $chars  Characters to use for conversion
- * @return string        Converted number
- */
-function yourls_int2string($num, $chars = null) {
-	if( $chars == null )
-		$chars = yourls_get_shorturl_charset();
-	$string = '';
-	$len = strlen( $chars );
-	while( $num >= $len ) {
-		$mod = bcmod( (string)$num, (string)$len );
-		$num = bcdiv( (string)$num, (string)$len );
-		$string = $chars[ $mod ] . $string;
-	}
-	$string = $chars[ intval( $num ) ] . $string;
-
-	return yourls_apply_filter( 'int2string', $string, $num, $chars );
-}
-
-/**
- * Convert a string (3jk) to an integer (1337)
- *
- * @param string $string  String to convert
- * @param string $chars   Characters to use for conversion
- * @return string         Number (as a string)
- */
-function yourls_string2int($string, $chars = null) {
-	if( $chars == null )
-		$chars = yourls_get_shorturl_charset();
-	$integer = 0;
-	$string = strrev( $string  );
-	$baselen = strlen( $chars );
-	$inputlen = strlen( $string );
-	for ($i = 0; $i < $inputlen; $i++) {
-		$index = strpos( $chars, $string[$i] );
-		$integer = bcadd( (string)$integer, bcmul( (string)$index, bcpow( (string)$baselen, (string)$i ) ) );
-	}
-
-	return yourls_apply_filter( 'string2int', $integer, $string, $chars );
-}
-
-/**
- * Return a unique string to be used as a valid HTML id
- *
- * @since   1.8.3
- * @param  string $prefix   Optional prefix
- * @return string           The unique string
- */
-function yourls_unique_element_id($prefix = 'yid') {
-    static $id_counter = 0;
-	return yourls_apply_filter( 'unique_element_id', $prefix . (string)++$id_counter );
-}
-
-/**
- * Make sure a link keyword (ie "1fv" as in "http://sho.rt/1fv") is acceptable
- *
- * If we are ADDING or EDITING a short URL, the keyword must comply to the short URL charset: every
- * character that doesn't belong to it will be removed.
- * But otherwise we must have a more conservative approach: we could be checking for a keyword that
- * was once valid but now the short URL charset has changed. In such a case, we are treating the keyword for what
- * it is: just a part of a URL, hence sanitize it as a URL.
- *
- * @param  string $keyword                        short URL keyword
- * @param  bool   $restrict_to_shorturl_charset   Optional, default false. True if we want the keyword to comply to short URL charset
- * @return string                                 The sanitized keyword
- */
-function yourls_sanitize_keyword( $keyword, $restrict_to_shorturl_charset = false ) {
-    if( $restrict_to_shorturl_charset === true ) {
-        // make a regexp pattern with the shorturl charset, and remove everything but this
-        $pattern = yourls_make_regexp_pattern( yourls_get_shorturl_charset() );
-        $valid = (string) substr( preg_replace( '![^'.$pattern.']!', '', $keyword ), 0, 199 );
-    } else {
-        $valid = yourls_sanitize_url( $keyword );
-    }
-
-	return yourls_apply_filter( 'sanitize_string', $valid, $keyword, $restrict_to_shorturl_charset );
-}
-
-/**
- * Sanitize a page title. No HTML per W3C http://www.w3.org/TR/html401/struct/global.html#h-7.4.2
- *
- *
- * @since 1.5
- * @param string $unsafe_title  Title, potentially unsafe
- * @param string $fallback      Optional fallback if after sanitization nothing remains
- * @return string               Safe title
- */
-function yourls_sanitize_title( $unsafe_title, $fallback = '' ) {
-	$title = $unsafe_title;
-	$title = strip_tags( $title );
-	$title = preg_replace( "/\s+/", ' ', trim( $title ) );
-
-    if ( '' === $title || false === $title ) {
-        $title = $fallback;
-    }
-
-	return yourls_apply_filter( 'sanitize_title', $title, $unsafe_title, $fallback );
-}
-
-/**
- * A few sanity checks on the URL. Used for redirection or DB.
- * For redirection when you don't trust the URL ($_SERVER variable, query string), see yourls_sanitize_url_safe()
- * For display purpose, see yourls_esc_url()
- *
- * @param string $unsafe_url unsafe URL
- * @param array $protocols Optional allowed protocols, default to global $yourls_allowedprotocols
- * @return string Safe URL
- */
-function yourls_sanitize_url( $unsafe_url, $protocols = array() ) {
-	$url = yourls_esc_url( $unsafe_url, 'redirection', $protocols );
-	return yourls_apply_filter( 'sanitize_url', $url, $unsafe_url );
-}
-
-/**
- * A few sanity checks on the URL, including CRLF. Used for redirection when URL to be sanitized is critical and cannot be trusted.
- *
- * Use when critical URL comes from user input or environment variable. In such a case, this function will sanitize
- * it like yourls_sanitize_url() but will also remove %0A and %0D to prevent CRLF injection.
- * Still, some legit URLs contain %0A or %0D (see issue 2056, and for extra fun 1694, 1707, 2030, and maybe others)
- * so we're not using this function unless it's used for internal redirection when the target location isn't
- * hardcoded, to avoid XSS via CRLF
- *
- * @since 1.7.2
- * @param string $unsafe_url unsafe URL
- * @param array $protocols Optional allowed protocols, default to global $yourls_allowedprotocols
- * @return string Safe URL
- */
-function yourls_sanitize_url_safe( $unsafe_url, $protocols = array() ) {
-	$url = yourls_esc_url( $unsafe_url, 'safe', $protocols );
-	return yourls_apply_filter( 'sanitize_url_safe', $url, $unsafe_url );
-}
-
-/**
- * Perform a replacement while a string is found, eg $subject = '%0%0%0DDD', $search ='%0D' -> $result =''
- *
- * Stolen from WP's _deep_replace
- *
- * @param string|array $search   Needle, or array of needles.
- * @param string       $subject  Haystack.
- * @return string                The string with the replaced values.
- */
-function yourls_deep_replace($search, $subject ){
-	$found = true;
-	while($found) {
-		$found = false;
-		foreach( (array) $search as $val ) {
-			while( strpos( $subject, $val ) !== false ) {
-				$found = true;
-				$subject = str_replace( $val, '', $subject );
-			}
-		}
-	}
-
-	return $subject;
-}
-
-/**
- * Make sure an integer is a valid integer (PHP's intval() limits to too small numbers)
- *
- * @param int $int  Integer to check
- * @return string   Integer as a string
- */
-function yourls_sanitize_int($int ) {
-	return ( substr( preg_replace( '/[^0-9]/', '', strval( $int ) ), 0, 20 ) );
-}
-
-/**
- * Sanitize an IP address
- * No check on validity, just return a sanitized string
- *
- * @param string $ip  IP address
- * @return string     IP address
- */
-function yourls_sanitize_ip($ip ) {
-	return preg_replace( '/[^0-9a-fA-F:., ]/', '', $ip );
-}
-
-/**
- * Make sure a date is m(m)/d(d)/yyyy, return false otherwise
- *
- * @param string $date  Date to check
- * @return false|mixed  Date in format m(m)/d(d)/yyyy or false if invalid
- */
-function yourls_sanitize_date($date ) {
-	if( !preg_match( '!^\d{1,2}/\d{1,2}/\d{4}$!' , $date ) ) {
-		return false;
-	}
-	return $date;
-}
-
-/**
- * Sanitize a date for SQL search. Return false if malformed input.
- *
- * @param string $date   Date
- * @return false|string  String in Y-m-d format for SQL search or false if malformed input
- */
-function yourls_sanitize_date_for_sql($date) {
-	if( !yourls_sanitize_date( $date ) )
-		return false;
-	return date( 'Y-m-d', strtotime( $date ) );
-}
-
-/**
- * Return trimmed string, optionally append '[...]' if string is too long
- *
- * @param string $string  String to trim
- * @param int $length     Maximum length of string
- * @param string $append  String to append if trimmed
- * @return string         Trimmed string
- */
-function yourls_trim_long_string($string, $length = 60, $append = '[...]') {
-	$newstring = $string;
-    if ( mb_strlen( $newstring ) > $length ) {
-        $newstring = mb_substr( $newstring, 0, $length - mb_strlen( $append ), 'UTF-8' ) . $append;
-    }
-	return yourls_apply_filter( 'trim_long_string', $newstring, $string, $length, $append );
-}
-
-/**
- * Sanitize a version number (1.4.1-whatever-RC1 -> 1.4.1)
- *
- * The regexp searches for the first digits, then a period, then more digits and periods, and discards
- * all the rest.
- * For instance, 'mysql-5.5-beta' and '5.5-RC1' return '5.5'
- *
- * @since 1.4.1
- * @param  string $version  Version number
- * @return string           Sanitized version number
- */
-function yourls_sanitize_version( $version ) {
-    preg_match( '/([0-9]+\.[0-9.]+).*$/', $version, $matches );
-    $version = isset($matches[1]) ? trim($matches[1], '.') : '';
-
-    return $version;
-}
-
-/**
- * Sanitize a filename (no Win32 stuff)
- *
- * @param string $file  File name
- * @return string|null  Sanitized file name (or null if it's just backslashes, ok...)
- */
-function yourls_sanitize_filename($file) {
-	$file = str_replace( '\\', '/', $file ); // sanitize for Win32 installs
-	$file = preg_replace( '|/+|' ,'/', $file ); // remove any duplicate slash
-	return $file;
-}
-
-/**
- * Check if a string seems to be UTF-8. Stolen from WP.
- *
- * @param string $str  String to check
- * @return bool        Whether string seems valid UTF-8
- */
-function yourls_seems_utf8($str) {
-	$length = strlen( $str );
-	for ( $i=0; $i < $length; $i++ ) {
-		$c = ord( $str[ $i ] );
-		if ( $c < 0x80 ) $n = 0; # 0bbbbbbb
-		elseif (($c & 0xE0) == 0xC0) $n=1; # 110bbbbb
-		elseif (($c & 0xF0) == 0xE0) $n=2; # 1110bbbb
-		elseif (($c & 0xF8) == 0xF0) $n=3; # 11110bbb
-		elseif (($c & 0xFC) == 0xF8) $n=4; # 111110bb
-		elseif (($c & 0xFE) == 0xFC) $n=5; # 1111110b
-		else return false; # Does not match any model
-		for ($j=0; $j<$n; $j++) { # n bytes matching 10bbbbbb follow ?
-			if ((++$i == $length) || ((ord($str[$i]) & 0xC0) != 0x80))
-				return false;
-		}
-	}
-	return true;
-}
-
-
-/**
- * Check for PCRE /u modifier support. Stolen from WP.
- *
- * Just in case "PCRE is not compiled with PCRE_UTF8" which seems to happen
- * on some distros
- *
- * @since 1.7.1
- *
- * @return bool whether there's /u support or not
- */
-function yourls_supports_pcre_u() {
-    static $utf8_pcre;
-    if( !isset( $utf8_pcre ) ) {
-        $utf8_pcre = (bool) @preg_match( '/^./u', 'a' );
-    }
-    return $utf8_pcre;
-}
-
-/**
- * Checks for invalid UTF8 in a string. Stolen from WP
- *
- * @since 1.6
- *
- * @param string $string The text which is to be checked.
- * @param boolean $strip Optional. Whether to attempt to strip out invalid UTF8. Default is false.
- * @return string The checked text.
- */
-function yourls_check_invalid_utf8( $string, $strip = false ) {
-	$string = (string) $string;
-
-	if ( 0 === strlen( $string ) ) {
-		return '';
-	}
-
-	// We can't demand utf8 in the PCRE installation, so just return the string in those cases
-	if ( ! yourls_supports_pcre_u() ) {
-		return $string;
-	}
-
-	// preg_match fails when it encounters invalid UTF8 in $string
-	if ( 1 === @preg_match( '/^./us', $string ) ) {
-		return $string;
-	}
-
-	// Attempt to strip the bad chars if requested (not recommended)
-	if ( $strip && function_exists( 'iconv' ) ) {
-		return iconv( 'utf-8', 'utf-8', $string );
-	}
-
-	return '';
-}
-
-/**
- * Converts a number of special characters into their HTML entities. Stolen from WP.
- *
- * Specifically deals with: &, <, >, ", and '.
- *
- * $quote_style can be set to ENT_COMPAT to encode " to
- * &quot;, or ENT_QUOTES to do both. Default is ENT_NOQUOTES where no quotes are encoded.
- *
- * @since 1.6
- *
- * @param string $string The text which is to be encoded.
- * @param mixed $quote_style Optional. Converts double quotes if set to ENT_COMPAT, both single and double if set to ENT_QUOTES or none if set to ENT_NOQUOTES. Also compatible with old values; converting single quotes if set to 'single', double if set to 'double' or both if otherwise set. Default is ENT_NOQUOTES.
- * @param boolean $double_encode Optional. Whether to encode existing html entities. Default is false.
- * @return string The encoded text with HTML entities.
- */
-function yourls_specialchars( $string, $quote_style = ENT_NOQUOTES, $double_encode = false ) {
-	$string = (string) $string;
-
-	if ( 0 === strlen( $string ) )
-		return '';
-
-	// Don't bother if there are no specialchars - saves some processing
-	if ( ! preg_match( '/[&<>"\']/', $string ) )
-		return $string;
-
-	// Account for the previous behaviour of the function when the $quote_style is not an accepted value
-	if ( empty( $quote_style ) )
-		$quote_style = ENT_NOQUOTES;
-	elseif ( ! in_array( $quote_style, array( 0, 2, 3, 'single', 'double' ), true ) )
-		$quote_style = ENT_QUOTES;
-
-	$charset = 'UTF-8';
-
-	$_quote_style = $quote_style;
-
-	if ( $quote_style === 'double' ) {
-		$quote_style = ENT_COMPAT;
-		$_quote_style = ENT_COMPAT;
-	} elseif ( $quote_style === 'single' ) {
-		$quote_style = ENT_NOQUOTES;
-	}
-
-	// Handle double encoding ourselves
-	if ( $double_encode ) {
-		$string = @htmlspecialchars( $string, $quote_style, $charset );
-	} else {
-		// Decode &amp; into &
-		$string = yourls_specialchars_decode( $string, $_quote_style );
-
-		// Guarantee every &entity; is valid or re-encode the &
-		$string = yourls_kses_normalize_entities( $string );
-
-		// Now re-encode everything except &entity;
-		$string = preg_split( '/(&#?x?[0-9a-z]+;)/i', $string, -1, PREG_SPLIT_DELIM_CAPTURE );
-
-		for ( $i = 0; $i < count( $string ); $i += 2 )
-			$string[$i] = @htmlspecialchars( $string[$i], $quote_style, $charset );
-
-		$string = implode( '', $string );
-	}
-
-	// Backwards compatibility
-	if ( 'single' === $_quote_style )
-		$string = str_replace( "'", '&#039;', $string );
-
-	return $string;
-}
-
-/**
- * Converts a number of HTML entities into their special characters. Stolen from WP.
- *
- * Specifically deals with: &, <, >, ", and '.
- *
- * $quote_style can be set to ENT_COMPAT to decode " entities,
- * or ENT_QUOTES to do both " and '. Default is ENT_NOQUOTES where no quotes are decoded.
- *
- * @since 1.6
- *
- * @param string $string The text which is to be decoded.
- * @param mixed $quote_style Optional. Converts double quotes if set to ENT_COMPAT, both single and double if set to ENT_QUOTES or none if set to ENT_NOQUOTES. Also compatible with old _wp_specialchars() values; converting single quotes if set to 'single', double if set to 'double' or both if otherwise set. Default is ENT_NOQUOTES.
- * @return string The decoded text without HTML entities.
- */
-function yourls_specialchars_decode( $string, $quote_style = ENT_NOQUOTES ) {
-	$string = (string) $string;
-
-	if ( 0 === strlen( $string ) ) {
-		return '';
-	}
-
-	// Don't bother if there are no entities - saves a lot of processing
-	if ( strpos( $string, '&' ) === false ) {
-		return $string;
-	}
-
-	// Match the previous behaviour of _wp_specialchars() when the $quote_style is not an accepted value
-	if ( empty( $quote_style ) ) {
-		$quote_style = ENT_NOQUOTES;
-	} elseif ( !in_array( $quote_style, array( 0, 2, 3, 'single', 'double' ), true ) ) {
-		$quote_style = ENT_QUOTES;
-	}
-
-	// More complete than get_html_translation_table( HTML_SPECIALCHARS )
-	$single = array( '&#039;'  => '\'', '&#x27;' => '\'' );
-	$single_preg = array( '/&#0*39;/'  => '&#039;', '/&#x0*27;/i' => '&#x27;' );
-	$double = array( '&quot;' => '"', '&#034;'  => '"', '&#x22;' => '"' );
-	$double_preg = array( '/&#0*34;/'  => '&#034;', '/&#x0*22;/i' => '&#x22;' );
-	$others = array( '&lt;'   => '<', '&#060;'  => '<', '&gt;'   => '>', '&#062;'  => '>', '&amp;'  => '&', '&#038;'  => '&', '&#x26;' => '&' );
-	$others_preg = array( '/&#0*60;/'  => '&#060;', '/&#0*62;/'  => '&#062;', '/&#0*38;/'  => '&#038;', '/&#x0*26;/i' => '&#x26;' );
-
-    $translation = $translation_preg = [];
-
-	if ( $quote_style === ENT_QUOTES ) {
-		$translation = array_merge( $single, $double, $others );
-		$translation_preg = array_merge( $single_preg, $double_preg, $others_preg );
-	} elseif ( $quote_style === ENT_COMPAT || $quote_style === 'double' ) {
-		$translation = array_merge( $double, $others );
-		$translation_preg = array_merge( $double_preg, $others_preg );
-	} elseif ( $quote_style === 'single' ) {
-		$translation = array_merge( $single, $others );
-		$translation_preg = array_merge( $single_preg, $others_preg );
-	} elseif ( $quote_style === ENT_NOQUOTES ) {
-		$translation = $others;
-		$translation_preg = $others_preg;
-	}
-
-	// Remove zero padding on numeric entities
-	$string = preg_replace( array_keys( $translation_preg ), array_values( $translation_preg ), $string );
-
-	// Replace characters according to translation table
-	return strtr( $string, $translation );
-}
-
-
-/**
- * Escaping for HTML blocks. Stolen from WP
- *
- * @since 1.6
- *
- * @param string $text
- * @return string
- */
-function yourls_esc_html( $text ) {
-	$safe_text = yourls_check_invalid_utf8( $text );
-	$safe_text = yourls_specialchars( $safe_text, ENT_QUOTES );
-	return yourls_apply_filter( 'esc_html', $safe_text, $text );
-}
-
-/**
- * Escaping for HTML attributes.  Stolen from WP
- *
- * @since 1.6
- *
- * @param string $text
- * @return string
- */
-function yourls_esc_attr( $text ) {
-	$safe_text = yourls_check_invalid_utf8( $text );
-	$safe_text = yourls_specialchars( $safe_text, ENT_QUOTES );
-	return yourls_apply_filter( 'esc_attr', $safe_text, $text );
-}
-
-/**
- * Checks and cleans a URL before printing it. Stolen from WP.
- *
- * A number of characters are removed from the URL. If the URL is for displaying
- * (the default behaviour) ampersands are also replaced.
- *
- * This function by default "escapes" URL for display purpose (param $context = 'display') but can
- * take extra steps in URL sanitization. See yourls_sanitize_url() and yourls_sanitize_url_safe()
- *
- * @since 1.6
- *
- * @param string $url The URL to be cleaned.
- * @param string $context 'display' or something else. Use yourls_sanitize_url() for database or redirection usage.
- * @param array $protocols Optional. Array of allowed protocols, defaults to global $yourls_allowedprotocols
- * @return string The cleaned $url
- */
-function yourls_esc_url( $url, $context = 'display', $protocols = array() ) {
-    // trim first -- see #1931
-    $url = trim( $url );
-
-	// make sure there's only one 'http://' at the beginning (prevents pasting a URL right after the default 'http://')
-	$url = str_replace(
-		array( 'http://http://', 'http://https://' ),
-		array( 'http://',        'https://'        ),
-		$url
-	);
-
-	if ( '' == $url )
-		return $url;
-
-	$original_url = $url;
-
-	// force scheme and domain to lowercase - see issues 591 and 1630
-    $url = yourls_normalize_uri( $url );
-
-	$url = preg_replace( '|[^a-z0-9-~+_.?#=!&;,/:%@$\|*\'()\[\]\\x80-\\xff]|i', '', $url );
-	// Previous regexp in YOURLS was '|[^a-z0-9-~+_.?\[\]\^#=!&;,/:%@$\|*`\'<>"()\\x80-\\xff\{\}]|i'
-	// TODO: check if that was it too destructive
-
-    // If $context is 'safe', an extra step is taken to make sure no CRLF injection is possible.
-    // To be used when $url can be forged by evil user (eg it's from a $_SERVER variable, a query string, etc..)
-	if ( 'safe' == $context ) {
-        $strip = array( '%0d', '%0a', '%0D', '%0A' );
-        $url = yourls_deep_replace( $strip, $url );
-    }
-
-	// Replace ampersands and single quotes only when displaying.
-	if ( 'display' == $context ) {
-		$url = yourls_kses_normalize_entities( $url );
-		$url = str_replace( '&amp;', '&#038;', $url );
-		$url = str_replace( "'", '&#039;', $url );
-	}
-
-    // If there's a protocol, make sure it's OK
-    if( yourls_get_protocol($url) !== '' ) {
-        if ( ! is_array( $protocols ) or ! $protocols ) {
-            global $yourls_allowedprotocols;
-            $protocols = yourls_apply_filter( 'esc_url_protocols', $yourls_allowedprotocols );
-            // Note: $yourls_allowedprotocols is also globally filterable in functions-kses.php/yourls_kses_init()
-        }
-
-        if ( !yourls_is_allowed_protocol( $url, $protocols ) )
-            return '';
-
-        // I didn't use KSES function kses_bad_protocol() because it doesn't work the way I liked (returns //blah from illegal://blah)
-    }
-
-	return yourls_apply_filter( 'esc_url', $url, $original_url, $context );
-}
-
-
-/**
- * Normalize a URI : lowercase scheme and domain, convert IDN to UTF8
- *
- * All in one example: 'HTTP://XN--mgbuq0c.Com/AbCd' -> 'http://طارق.com/AbCd'
- * See issues 591, 1630, 1889, 2691
- *
- * This function is trickier than what seems to be needed at first
- *
- * First, we need to handle several URI types: http://example.com, mailto:ozh@ozh.ozh, facetime:user@example.com, and so on, see
- * yourls_kses_allowed_protocols() in functions-kses.php
- * The general rule is that the scheme ("stuff://" or "stuff:") is case insensitive and should be lowercase. But then, depending on the
- * scheme, parts of what follows the scheme may or may not be case sensitive.
- *
- * Second, simply using parse_url() and its opposite http_build_url() is a pretty unsafe process:
- *  - parse_url() can easily trip up on malformed or weird URLs
- *  - exploding a URL with parse_url(), lowercasing some stuff, and glueing things back with http_build_url() does not handle well
- *    "stuff:"-like URI [1] and can result in URLs ending modified [2][3]. We don't want to *validate* URI, we just want to lowercase
- *    what is supposed to be lowercased.
- *
- * So, to be conservative, this function:
- *  - lowercases the scheme
- *  - does not lowercase anything else on "stuff:" URI
- *  - tries to lowercase only scheme and domain of "stuff://" URI
- *
- * [1] http_build_url(parse_url("mailto:ozh")) == "mailto:///ozh"
- * [2] http_build_url(parse_url("http://blah#omg")) == "http://blah/#omg"
- * [3] http_build_url(parse_url("http://blah?#")) == "http://blah/"
- *
- * @since 1.7.1
- * @param string $url URL
- * @return string URL with lowercase scheme and protocol
- */
-function yourls_normalize_uri( $url ) {
-    $scheme = yourls_get_protocol( $url );
-
-    if ('' == $scheme) {
-        // Scheme not found, malformed URL? Something else? Not sure.
-        return $url;
-    }
-
-    /**
-     * Case 1 : scheme like "stuff:", as opposed to "stuff://"
-     * Examples: "mailto:joe@joe.com" or "bitcoin:15p1o8vnWqNkJBJGgwafNgR1GCCd6EGtQR?amount=1&label=Ozh"
-     * In this case, we only lowercase the scheme, because depending on it, things after should or should not be lowercased
-     */
-    if (substr($scheme, -2, 2) != '//') {
-        $url = str_replace( $scheme, strtolower( $scheme ), $url );
-        return $url;
-    }
-
-    /**
-     * Case 2 : scheme like "stuff://" (eg "http://example.com/" or "ssh://joe@joe.com")
-     * Here we lowercase the scheme and domain parts
-     */
-    $parts = parse_url($url);
-
-    // Most likely malformed stuff, could not parse : we'll just lowercase the scheme and leave the rest untouched
-    if (false == $parts) {
-        $url = str_replace( $scheme, strtolower( $scheme ), $url );
-        return $url;
-    }
-
-    // URL seems parsable, let's do the best we can
-    $lower = array();
-    $lower['scheme'] = strtolower( $parts['scheme'] );
-    if( isset( $parts['host'] ) ) {
-        // Convert domain to lowercase, with mb_ to preserve UTF8
-        $lower['host'] = mb_strtolower($parts['host']);
-        /**
-         * Convert IDN domains to their UTF8 form so that طارق.net and xn--mgbuq0c.net
-         * are considered the same. Explicitely mention option and variant to avoid notice
-         * on PHP 7.2 and 7.3
-         */
-         $lower['host'] = idn_to_utf8($lower['host'], IDNA_DEFAULT, INTL_IDNA_VARIANT_UTS46);
-    }
-
-    $url = http_build_url($url, $lower);
-
-    return $url;
-}
-
-
-/**
- * Escape single quotes, htmlspecialchar " < > &, and fix line endings. Stolen from WP.
- *
- * Escapes text strings for echoing in JS. It is intended to be used for inline JS
- * (in a tag attribute, for example onclick="..."). Note that the strings have to
- * be in single quotes. The filter 'js_escape' is also applied here.
- *
- * @since 1.6
- *
- * @param string $text The text to be escaped.
- * @return string Escaped text.
- */
-function yourls_esc_js( $text ) {
-	$safe_text = yourls_check_invalid_utf8( $text );
-	$safe_text = yourls_specialchars( $safe_text, ENT_COMPAT );
-	$safe_text = preg_replace( '/&#(x)?0*(?(1)27|39);?/i', "'", stripslashes( $safe_text ) );
-	$safe_text = str_replace( "\r", '', $safe_text );
-	$safe_text = str_replace( "\n", '\\n', addslashes( $safe_text ) );
-	return yourls_apply_filter( 'esc_js', $safe_text, $text );
-}
-
-/**
- * Escaping for textarea values. Stolen from WP.
- *
- * @since 1.6
- *
- * @param string $text
- * @return string
- */
-function yourls_esc_textarea( $text ) {
-	$safe_text = htmlspecialchars( $text, ENT_QUOTES );
-	return yourls_apply_filter( 'esc_textarea', $safe_text, $text );
-}
-
-/**
- * Adds backslashes before letters and before a number at the start of a string. Stolen from WP.
- *
- * @since 1.6
- * @param string $string Value to which backslashes will be added.
- * @return string String with backslashes inserted.
- */
-function yourls_backslashit($string) {
-    $string = preg_replace('/^([0-9])/', '\\\\\\\\\1', (string)$string);
-    $string = preg_replace('/([a-z])/i', '\\\\\1', (string)$string);
-    return $string;
-}
-
-/**
- * Check if a string seems to be urlencoded
- *
- * We use rawurlencode instead of urlencode to avoid messing with '+'
- *
- * @since 1.7
- * @param string $string
- * @return bool
- */
-function yourls_is_rawurlencoded( $string ) {
-	return rawurldecode( $string ) != $string;
-}
-
-/**
- * rawurldecode a string till it's not encoded anymore
- *
- * Deals with multiple encoding (eg "%2521" => "%21" => "!").
- * See https://github.com/YOURLS/YOURLS/issues/1303
- *
- * @since 1.7
- * @param string $string
- * @return string
- */
-function yourls_rawurldecode_while_encoded( $string ) {
-	$string = rawurldecode( $string );
-	if( yourls_is_rawurlencoded( $string ) ) {
-		$string = yourls_rawurldecode_while_encoded( $string );
-	}
-	return $string;
-}
-
-/**
- * Converts readable Javascript code into a valid bookmarklet link
- *
- * Uses https://github.com/ozh/bookmarkletgen
- *
- * @since 1.7.1
- * @param  string $code  Javascript code
- * @return string        Bookmarklet link
- */
-function yourls_make_bookmarklet( $code ) {
-    $book = new \Ozh\Bookmarkletgen\Bookmarkletgen;
-    return $book->crunch( $code );
-}
-
-/**
- * Return a timestamp, plus or minus the time offset if defined
- *
- * @since 1.7.10
- * @param  string|int $timestamp  a timestamp
- * @return int                    a timestamp, plus or minus offset if defined
- */
-function yourls_get_timestamp( $timestamp ) {
-    $offset = yourls_get_time_offset();
-    $timestamp_offset = (int)$timestamp + ($offset * 3600);
-
-    return yourls_apply_filter( 'get_timestamp', $timestamp_offset, $timestamp, $offset );
-}
-
-/**
- * Get time offset, as defined in config, filtered
- *
- * @since 1.7.10
- * @return int       Time offset
- */
-function yourls_get_time_offset() {
-    $offset = defined('YOURLS_HOURS_OFFSET') ? (int)YOURLS_HOURS_OFFSET : 0;
-    return yourls_apply_filter( 'get_time_offset', $offset );
-}
-
-/**
- * Return a date() format for a full date + time, filtered
- *
- * @since 1.7.10
- * @param  string $format  Date format string
- * @return string          Date format string
- */
-function yourls_get_datetime_format( $format ) {
-    return yourls_apply_filter( 'get_datetime_format', (string)$format );
-}
-
-/**
- * Return a date() format for date (no time), filtered
- *
- * @since 1.7.10
- * @param  string $format  Date format string
- * @return string          Date format string
- */
-function yourls_get_date_format( $format ) {
-    return yourls_apply_filter( 'get_date_format', (string)$format );
-}
-
-/**
- * Return a date() format for a time (no date), filtered
- *
- * @since 1.7.10
- * @param  string $format  Date format string
- * @return string          Date format string
- */
-function yourls_get_time_format( $format ) {
-    return yourls_apply_filter( 'get_time_format', (string)$format );
-}