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node_modules/exit-on-epipe/LICENSE

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+Copyright (C) 2015-present SheetJS
+
+   Licensed under the Apache License, Version 2.0 (the "License");
+   you may not use this file except in compliance with the License.
+   You may obtain a copy of the License at
+
+       http://www.apache.org/licenses/LICENSE-2.0
+
+   Unless required by applicable law or agreed to in writing, software
+   distributed under the License is distributed on an "AS IS" BASIS,
+   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+   See the License for the specific language governing permissions and
+   limitations under the License.

node_modules/exit-on-epipe/README.md

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+# exit-on-epipe
+
+Cleanly exit on pipe errors in NodeJS scripts.
+
+NOTE: The underlying problem was addressed in 8.x NodeJS versions but the fix
+was not backported to 6.x and other versions of NodeJS.
+
+These errors are common in pipelines that involve NodeJS scripts. For example,
+take a simple script that prints out 10 lines:
+
+```js
+for(var i = 0; i < 10; ++i) console.log(i)
+```
+
+NodeJS will print an error message if the output is truncated:
+
+```bash
+$ cat t.js
+for(var i = 0; i < 10; ++i) console.log(i)
+$ node --version
+v6.11.1
+$ node t.js  | head -n 1
+0
+events.js:160
+      throw er; // Unhandled 'error' event
+      ^
+
+Error: write EPIPE
+    at exports._errnoException (util.js:1018:11)
+    at WriteWrap.afterWrite (net.js:800:14)
+```
+
+The process will cleanly exit if you require the module:
+
+```bash
+$ cat t.js
+require("exit-on-epipe");
+for(var i = 0; i < 10; ++i) console.log(i)
+$ node t.js  | head -n 1
+0
+```
+
+## Installation
+
+With [npm](https://www.npmjs.org/package/exit-on-epipe):
+
+```bash
+$ npm install exit-on-epipe
+```
+
+## Usage
+
+For basic scripts, requiring at the top of the source file suffices:
+
+```js
+require('exit-on-epipe');
+// ... rest of source
+```
+
+For more advanced situations (e.g. handing other streams), call the module:
+
+```js
+var eoepipe = require('exit-on-epipe');
+eoepipe(stream);            // will exit process on an EPIPE error on stream
+eoepipe(stream, handler);   // will call handler() instead of process.exit
+```
+
+## Interface
+
+The module exports a single function (exposed as the variable `eoepipe`).
+
+`eoepipe(stream, bail)` will attach an error handler to `stream` which will:
+
+- call the `bail` function if the error `.code` is `"EPIPE"` or `.errno` is `32`
+- defer to the default behavior if there are no other error handlers
+- noop if the error is not `EPIPE` and if there are other error handlers
+
+If the `bail` function is not specified, `process.exit` is used.
+
+If the `stream` parameter is not specified, no action will be taken
+
+## Notes
+
+The script will not perform any action if `process` or `process.stdout` are not
+available.  It is safe to use in a web page.
+
+## License
+
+Please consult the attached LICENSE file for details.  All rights not explicitly
+granted by the Apache 2.0 license are reserved by the Original Author.
+
+## Badges
+
+[![Build Status](https://travis-ci.org/SheetJS/node-exit-on-epipe.svg?branch=master)](https://travis-ci.org/SheetJS/node-exit-on-epipe)
+
+[![npm license](https://img.shields.io/npm/l/exit-on-epipe.svg)](https://npmjs.org/package/exit-on-epipe)
+
+[![NPM Downloads](https://img.shields.io/npm/dt/exit-on-epipe.svg)](https://npmjs.org/package/exit-on-epipe)
+
+[![Dependencies Status](https://david-dm.org/sheetjs/node-exit-on-epipe/status.svg)](https://david-dm.org/sheetjs/node-exit-on-epipe)
+
+[![ghit.me](https://ghit.me/badge.svg?repo=sheetjs/node-exit-on-epipe)](https://ghit.me/repo/sheetjs/node-exit-on-epipe)
+
+[![Analytics](https://ga-beacon.appspot.com/UA-36810333-1/SheetJS/node-exit-on-epipe?pixel)](https://github.com/SheetJS/node-exit-on-epipe)

node_modules/exit-on-epipe/exit-on-epipe.js

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+/* exit-on-epipe.js (C) 2015-present SheetJS -- http://sheetjs.com */
+/* vim: set ts=2: */
+/*jshint eqnull:true, node:true */
+var eoepipe = function eoepipeit(S/*:events$EventEmitter*/, bail/*:?()=>any*/) {
+	if(!S || !S.on) return;
+	if(!bail && typeof process !== 'undefined') bail = process.exit;
+	var eoe = function eoeit(err/*:ErrnoError*/) {
+		if(err.code === 'EPIPE' || err.errno === /*EPIPE*/32) { if(bail) bail(); else return; }
+		var cnt = S.listenerCount ? S.listenerCount('error') : S.listeners('error').length;
+		if(cnt == 1) {
+			S.removeListener('error', eoe);
+			S.emit('error', err);
+			S.on('error', eoe);
+		}
+	};
+	S.on('error', eoe);
+};
+
+if(typeof module !== 'undefined') module.exports = eoepipe;
+if(typeof process !== 'undefined') eoepipe(process.stdout);

node_modules/exit-on-epipe/package.json

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+{
+	"name": "exit-on-epipe",
+	"version": "1.0.1",
+	"author": "sheetjs",
+	"description": "Cleanly exit process on EPIPE",
+	"keywords": [ "epipe", "pipe", "error", "exit" ],
+	"main": "./exit-on-epipe",
+	"dependencies": {
+	},
+	"devDependencies": {
+		"mocha":"~2.5.3"
+	},
+	"repository": { "type":"git", "url":"git://github.com/SheetJS/node-exit-on-epipe.git" },
+	"scripts": {
+		"test": "make test"
+	},
+	"files": ["exit-on-epipe.js", "LICENSE", "README.md"],
+	"bugs": { "url": "https://github.com/SheetJS/node-exit-on-epipe/issues" },
+	"license": "Apache-2.0",
+	"engines": { "node": ">=0.8" }
+}