HTML Entities
var
HTMLEntities = {}
HTMLEntities.Encode = HTMLEntitiesEncode
HTMLEntities.Decode = DecodeHTMLEntities
Encode
/*
* The following implementations were copied from the following opensource implementations:
*
* http://locutus.io/php/strings/htmlentities/
* http://locutus.io/php/strings/get_html_translation_table/index.html
*/
function HTMLEntitiesEncode( string, quoteStyle, charset, doubleEncode )
{
// discuss at: http://locutus.io/php/htmlentities/
// original by: Kevin van Zonneveld (http://kvz.io)
// revised by: Kevin van Zonneveld (http://kvz.io)
// revised by: Kevin van Zonneveld (http://kvz.io)
// improved by: nobbler
// improved by: Jack
// improved by: Rafał Kukawski (http://blog.kukawski.pl)
// improved by: Dj (http://locutus.io/php/htmlentities:425#comment_134018)
// bugfixed by: Onno Marsman (https://twitter.com/onnomarsman)
// bugfixed by: Brett Zamir (http://brett-zamir.me)
// input by: Ratheous
// note 1: function is compatible with PHP 5.2 and older
// example 1: htmlentities('Kevin & van Zonneveld')
// returns 1: 'Kevin & van Zonneveld'
// example 2: htmlentities("foo'bar","ENT_QUOTES")
// returns 2: 'foo'bar'
var hashMap = HTMLEntitiesEncode.GetHTMLTranslationTable( 'HTML_ENTITIES', quoteStyle )
string = string === null ? '' : string + ''
if ( !hashMap )
{
return false
}
if ( quoteStyle && quoteStyle === 'ENT_QUOTES' )
{
hashMap["'"] = '''
}
doubleEncode = doubleEncode === null || !!doubleEncode
var regex = new RegExp('&(?:#\\d+|#x[\\da-f]+|[a-zA-Z][\\da-z]*);|[' + Object.keys(hashMap).join('').replace(/([()[\]{}\-.*+?^$|\/\\])/g, '\\$1') + ']','g')
return string.replace( regex,
function ( ent )
{
if ( ent.length > 1 )
{
return doubleEncode ? hashMap['&'] + ent.substr(1) : ent
}
return hashMap[ent]
}
)
}
Decode
function DecodeHTMLEntities( htmlEncodedString )
{
var ret = htmlEncodedString;
if ( "string" == typeof htmlEncodedString )
{
var bits = htmlEncodedString.split( '&' );
var n = bits.length;
if ( 1 < n )
{
for ( var i=0; i < n; i++ )
{
var s = bits[i].indexOf( ";" );
if ( -1 != s )
{
var bit = bits[i];
var bob = bit.substring( 0, s + 1 );
switch ( bob )
{
case "amp;":
bits[i] = "&" + bit.substring( s + 1, bit.length );
break;
case "quot;":
bits[i] = "\"" + bit.substring( s + 1, bit.length );
break;
case "rsquo;":
bits[i] = "\'" + bit.substring( s + 1, bit.length );
break;
case "apos;":
bits[i] = "\'" + bit.substring( s + 1, bit.length );
break;
case "lt;":
bits[i] = "<" + bit.substring( s + 1, bit.length );
break;
case "gt;":
bits[i] = ">" + bit.substring( s + 1, bit.length );
break;
default:
bits[i] = DecodeHTMLEntities.DecodeEntity( bob ) + bit.substring( s + 1, bit.length );
}
}
}
ret = bits.join( "" );
}
}
return ret;
}
Helper functions
HTMLEntitiesEncode.GetHTMLTranslationTable
=
function( table, quoteStyle )
{
// eslint-disable-line camelcase
// discuss at: http://locutus.io/php/get_html_translation_table/
// original by: Philip Peterson
// revised by: Kevin van Zonneveld (http://kvz.io)
// bugfixed by: noname
// bugfixed by: Alex
// bugfixed by: Marco
// bugfixed by: madipta
// bugfixed by: Brett Zamir (http://brett-zamir.me)
// bugfixed by: T.Wild
// improved by: KELAN
// improved by: Brett Zamir (http://brett-zamir.me)
// input by: Frank Forte
// input by: Ratheous
// note 1: It has been decided that we're not going to add global
// note 1: dependencies to Locutus, meaning the constants are not
// note 1: real constants, but strings instead. Integers are also supported if someone
// note 1: chooses to create the constants themselves.
// example 1: get_html_translation_table('HTML_SPECIALCHARS')
// returns 1: {'"': '"', '&': '&', '<': '<', '>': '>'}
var entities = {}
var hashMap = {}
var decimal
var constMappingTable = {}
var constMappingQuoteStyle = {}
var useTable = {}
var useQuoteStyle = {}
// Translate arguments
constMappingTable[0] = 'HTML_SPECIALCHARS'
constMappingTable[1] = 'HTML_ENTITIES'
constMappingQuoteStyle[0] = 'ENT_NOQUOTES'
constMappingQuoteStyle[2] = 'ENT_COMPAT'
constMappingQuoteStyle[3] = 'ENT_QUOTES'
useTable = !isNaN(table)
? constMappingTable[table]
: table
? table.toUpperCase()
: 'HTML_SPECIALCHARS'
useQuoteStyle = !isNaN(quoteStyle)
? constMappingQuoteStyle[quoteStyle]
: quoteStyle
? quoteStyle.toUpperCase()
: 'ENT_COMPAT'
if (useTable !== 'HTML_SPECIALCHARS' && useTable !== 'HTML_ENTITIES') {
throw new Error('Table: ' + useTable + ' not supported')
}
entities['38'] = '&'
if (useTable === 'HTML_ENTITIES')
{
entities['160'] = ' '
entities['161'] = '¡'
entities['162'] = '¢'
entities['163'] = '£'
entities['164'] = '¤'
entities['165'] = '¥'
entities['166'] = '¦'
entities['167'] = '§'
entities['168'] = '¨'
entities['169'] = '©'
entities['170'] = 'ª'
entities['171'] = '«'
entities['172'] = '¬'
entities['173'] = ''
entities['174'] = '®'
entities['175'] = '¯'
entities['176'] = '°'
entities['177'] = '±'
entities['178'] = '²'
entities['179'] = '³'
entities['180'] = '´'
entities['181'] = 'µ'
entities['182'] = '¶'
entities['183'] = '·'
entities['184'] = '¸'
entities['185'] = '¹'
entities['186'] = 'º'
entities['187'] = '»'
entities['188'] = '¼'
entities['189'] = '½'
entities['190'] = '¾'
entities['191'] = '¿'
entities['192'] = 'À'
entities['193'] = 'Á'
entities['194'] = 'Â'
entities['195'] = 'Ã'
entities['196'] = 'Ä'
entities['197'] = 'Å'
entities['198'] = 'Æ'
entities['199'] = 'Ç'
entities['200'] = 'È'
entities['201'] = 'É'
entities['202'] = 'Ê'
entities['203'] = 'Ë'
entities['204'] = 'Ì'
entities['205'] = 'Í'
entities['206'] = 'Î'
entities['207'] = 'Ï'
entities['208'] = 'Ð'
entities['209'] = 'Ñ'
entities['210'] = 'Ò'
entities['211'] = 'Ó'
entities['212'] = 'Ô'
entities['213'] = 'Õ'
entities['214'] = 'Ö'
entities['215'] = '×'
entities['216'] = 'Ø'
entities['217'] = 'Ù'
entities['218'] = 'Ú'
entities['219'] = 'Û'
entities['220'] = 'Ü'
entities['221'] = 'Ý'
entities['222'] = 'Þ'
entities['223'] = 'ß'
entities['224'] = 'à'
entities['225'] = 'á'
entities['226'] = 'â'
entities['227'] = 'ã'
entities['228'] = 'ä'
entities['229'] = 'å'
entities['230'] = 'æ'
entities['231'] = 'ç'
entities['232'] = 'è'
entities['233'] = 'é'
entities['234'] = 'ê'
entities['235'] = 'ë'
entities['236'] = 'ì'
entities['237'] = 'í'
entities['238'] = 'î'
entities['239'] = 'ï'
entities['240'] = 'ð'
entities['241'] = 'ñ'
entities['242'] = 'ò'
entities['243'] = 'ó'
entities['244'] = 'ô'
entities['245'] = 'õ'
entities['246'] = 'ö'
entities['247'] = '÷'
entities['248'] = 'ø'
entities['249'] = 'ù'
entities['250'] = 'ú'
entities['251'] = 'û'
entities['252'] = 'ü'
entities['253'] = 'ý'
entities['254'] = 'þ'
entities['255'] = 'ÿ'
}
if (useQuoteStyle !== 'ENT_NOQUOTES')
{
entities['34'] = '"'
}
if (useQuoteStyle === 'ENT_QUOTES')
{
entities['39'] = '''
}
entities['60'] = '<'
entities['62'] = '>'
// ascii decimals to real symbols
for ( const decimal in entities)
{
if (entities.hasOwnProperty(decimal))
{
hashMap[String.fromCharCode(decimal)] = entities[decimal]
}
}
return hashMap
}
DecodeHTMLEntities.DecodeEntity
=
function( entity )
{
var ret = entity;
if ( 0 == entity.indexOf( "#" ) )
{
var entity2 = entity.substring( 1, entity.length );
var e = entity2.indexOf( ";" );
if ( (entity2.length - 1) == e )
{
var entity3 = entity2.substring( 0, entity2.length - 1 );
var dec = parseInt( entity3 );
if ( NaN !== dec )
{
ret = String.fromCharCode( dec );
}
}
}
return ret;
}