javascript string regexp code example

Example 1: javascript regex reference

// Javascript Regex Reference
//  /abc/	A sequence of characters
//  /[abc]/	Any character from a set of characters
//  /[^abc]/	Any character not in a set of characters
//  /[0-9]/	Any character in a range of characters
//  /x+/	One or more occurrences of the pattern x
//  /x+?/	One or more occurrences, nongreedy
//  /x*/	Zero or more occurrences
//  /x?/	Zero or one occurrence
//  /x{2,4}/	Two to four occurrences
//  /(abc)/	A group
//  /a|b|c/	Any one of several patterns
//  /\d/	Any digit character
// /\w/	An alphanumeric character (“word character”)
//  /\s/	Any whitespace character
//  /./	Any character except newlines
//  /\b/	A word boundary
//  /^/	Start of input
//  /$/	End of input

Example 2: how to english paragraph matching in javascript

var text = "If he's restin', I'll wake him up! (Shouts at the cage.) 'Ello, Mister Polly Parrot! (Owner hits the cage.) There, he moved!!!\r\n\r\nNorth Korea is accusing the U.S. government of being behind the making of the movie \"The Interview.\"\r\n\r\nAnd, in a dispatch on state media, the totalitarian regime warns the United States that U.S. \"citadels\" will be attacked, dwarfing the attack on Sony that led to the cancellation of the film's release.\r\n\r\nWhile steadfastly denying involvement in the hack, North Korea accused U.S. President Barack Obama of calling for \"symmetric counteraction.\"\r\n\r\n\"The DPRK has already launched the toughest counteraction. Nothing is more serious miscalculation than guessing that just a single movie production company is the target of this counteraction. Our target is all the citadels of the U.S. imperialists who earned the bitterest grudge of all Koreans,\" a report on state-run KCNA read.";

var splitSentences = function() {

  var pattern = /(.+?([A-Z].)[\.|\?](?:['")\\\s]?)+?\s?)/igm, match;
  var ol = document.getElementById( "result" );
  while( ( match = pattern.exec( text )) != null ) {
    if( match.index === pattern.lastIndex ) {
      pattern.lastIndex++;
    }
    var li = document.createElement( "li" );
    li.appendChild( document.createTextNode( match[0] ) );
    ol.appendChild( li );
    console.log( match[0] );
  }

}();