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node_modules/merge2/README.md

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+# merge2
+
+Merge multiple streams into one stream in sequence or parallel.
+
+[![NPM version][npm-image]][npm-url]
+[![Build Status][travis-image]][travis-url]
+[![Downloads][downloads-image]][downloads-url]
+
+## Install
+
+Install with [npm](https://npmjs.org/package/merge2)
+
+```sh
+npm install merge2
+```
+
+## Usage
+
+```js
+const gulp = require('gulp')
+const merge2 = require('merge2')
+const concat = require('gulp-concat')
+const minifyHtml = require('gulp-minify-html')
+const ngtemplate = require('gulp-ngtemplate')
+
+gulp.task('app-js', function () {
+  return merge2(
+      gulp.src('static/src/tpl/*.html')
+        .pipe(minifyHtml({empty: true}))
+        .pipe(ngtemplate({
+          module: 'genTemplates',
+          standalone: true
+        })
+      ), gulp.src([
+        'static/src/js/app.js',
+        'static/src/js/locale_zh-cn.js',
+        'static/src/js/router.js',
+        'static/src/js/tools.js',
+        'static/src/js/services.js',
+        'static/src/js/filters.js',
+        'static/src/js/directives.js',
+        'static/src/js/controllers.js'
+      ])
+    )
+    .pipe(concat('app.js'))
+    .pipe(gulp.dest('static/dist/js/'))
+})
+```
+
+```js
+const stream = merge2([stream1, stream2], stream3, {end: false})
+//...
+stream.add(stream4, stream5)
+//..
+stream.end()
+```
+
+```js
+// equal to merge2([stream1, stream2], stream3)
+const stream = merge2()
+stream.add([stream1, stream2])
+stream.add(stream3)
+```
+
+```js
+// merge order:
+//   1. merge `stream1`;
+//   2. merge `stream2` and `stream3` in parallel after `stream1` merged;
+//   3. merge 'stream4' after `stream2` and `stream3` merged;
+const stream = merge2(stream1, [stream2, stream3], stream4)
+
+// merge order:
+//   1. merge `stream5` and `stream6` in parallel after `stream4` merged;
+//   2. merge 'stream7' after `stream5` and `stream6` merged;
+stream.add([stream5, stream6], stream7)
+```
+
+```js
+// nest merge
+// equal to merge2(stream1, stream2, stream6, stream3, [stream4, stream5]);
+const streamA = merge2(stream1, stream2)
+const streamB = merge2(stream3, [stream4, stream5])
+const stream = merge2(streamA, streamB)
+streamA.add(stream6)
+```
+
+## API
+
+```js
+const merge2 = require('merge2')
+```
+
+### merge2()
+
+### merge2(options)
+
+### merge2(stream1, stream2, ..., streamN)
+
+### merge2(stream1, stream2, ..., streamN, options)
+
+### merge2(stream1, [stream2, stream3, ...], streamN, options)
+
+return a duplex stream (mergedStream). streams in array will be merged in parallel.
+
+### mergedStream.add(stream)
+
+### mergedStream.add(stream1, [stream2, stream3, ...], ...)
+
+return the mergedStream.
+
+### mergedStream.on('queueDrain', function() {})
+
+It will emit 'queueDrain' when all streams merged. If you set `end === false` in options, this event give you a notice that should add more streams to merge or end the mergedStream.
+
+#### stream
+
+*option*
+Type: `Readable` or `Duplex` or `Transform` stream.
+
+#### options
+
+*option*
+Type: `Object`.
+
+* **end** - `Boolean` - if `end === false` then mergedStream will not be auto ended, you should end by yourself. **Default:** `undefined`
+
+* **objectMode** - `Boolean` . **Default:** `true`
+
+`objectMode` and other options(`highWaterMark`, `defaultEncoding` ...) is same as Node.js `Stream`.
+
+## License
+
+MIT © [Teambition](https://www.teambition.com)
+
+[npm-url]: https://npmjs.org/package/merge2
+[npm-image]: http://img.shields.io/npm/v/merge2.svg
+
+[travis-url]: https://travis-ci.org/teambition/merge2
+[travis-image]: http://img.shields.io/travis/teambition/merge2.svg
+
+[downloads-url]: https://npmjs.org/package/merge2
+[downloads-image]: http://img.shields.io/npm/dm/merge2.svg?style=flat-square