chunkmatcher

chunkmatcher

Fast searching for multiple patterns accross multiple data chunks.

This is useful if you have an http request that you want to search for terms and you don't want to buffer the whole response or test boundary conditions for terms between chunks.

Installation

$ npm install chunksearch

Quick Examples

var Terms = require("chunkmatcher").Terms;

var terms = new Terms();
terms.add('test', { ignoreCase: true });
terms.add('testing');
terms.add('search');

var matcher = terms.createMatcher();
matcher.append('test sear');
matcher.append('ching t te tes te');
matcher.append('sting test');
console.log(matcher.results);
// [
//   {
//     start: 0,
//     pattern: 'test'
//   },
//   {
//     start: 5,
//     pattern: 'search'
//   },
//   {
//     start: 24,
//     pattern: 'test'
//   },
//   {
//     start: 24,
//     pattern: 'testing'
//   },
//   {
//     start: 32,
//     pattern: 'test'
//   }
// ]

var Terms = require("chunkmatcher").Terms;

var terms = new Terms();
terms.add('www.google.com');
var matcher = terms.createMatcher();

var options = {
  host: 'www.google.com',
  port: 80,
  path: '/index.html'
};
http.get(options, function (res) {
  res.on('data', function (chunk) {
    matcher.append(chunk);
  });
  res.on('end', function () {
    console.log(matcher.results);
  });
});