git ssb

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'use strict'
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var tester = require('../util/tester')
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module.exports = function filter (test) {
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  //regexp
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  test = tester(test)
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  return function (read) {
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    return function next (end, cb) {
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      var sync, loop = true
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      while(loop) {
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        loop = false
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        sync = true
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        read(end, function (end, data) {
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          if(!end && !test(data))
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            return sync ? loop = true : next(end, cb)
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          cb(end, data)
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        })
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        sync = false
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      }
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    }
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  }
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}
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