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The MIT License (MIT)
Copyright (c) 2015-2016, Jon Schlinkert.
Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in
all copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
THE SOFTWARE.

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# snapdragon [![NPM version](https://img.shields.io/npm/v/snapdragon.svg?style=flat)](https://www.npmjs.com/package/snapdragon) [![NPM downloads](https://img.shields.io/npm/dm/snapdragon.svg?style=flat)](https://npmjs.org/package/snapdragon) [![Build Status](https://img.shields.io/travis/jonschlinkert/snapdragon.svg?style=flat)](https://travis-ci.org/jonschlinkert/snapdragon)
> Fast, pluggable and easy-to-use parser-renderer factory.
## Install
Install with [npm](https://www.npmjs.com/):
```sh
$ npm install --save snapdragon
```
Created by [jonschlinkert](https://github.com/jonschlinkert) and [doowb](https://github.com/doowb).
**Features**
* Bootstrap your own parser, get sourcemap support for free
* All parsing and compiling is handled by simple, reusable middleware functions
* Inspired by the parsers in [pug](http://jade-lang.com) and [css](https://github.com/reworkcss/css).
## History
### v0.5.0
**Breaking changes**
Substantial breaking changes were made in v0.5.0! Most of these changes are part of a larger refactor that will be finished in 0.6.0, including the introduction of a `Lexer` class.
* Renderer was renamed to `Compiler`
* the `.render` method was renamed to `.compile`
* Many other smaller changes. A more detailed overview will be provided in 0.6.0. If you don't have to time review code, I recommend you wait for the 0.6.0 release.
## Usage examples
```js
var Snapdragon = require('snapdragon');
var snapdragon = new Snapdragon();
```
**Parse**
```js
var ast = snapdragon.parser('some string', options)
// parser middleware that can be called by other middleware
.set('foo', function () {})
// parser middleware, runs immediately in the order defined
.use(bar())
.use(baz())
```
**Render**
```js
// pass the `ast` from the parse method
var res = snapdragon.compiler(ast)
// compiler middleware, called when the name of the middleware
// matches the `node.type` (defined in a parser middleware)
.set('bar', function () {})
.set('baz', function () {})
.compile()
```
See the [examples](./examples/).
## Getting started
**Parsers**
Parsers are middleware functions used for parsing a string into an ast node.
```js
var ast = snapdragon.parser(str, options)
.use(function() {
var pos = this.position();
var m = this.match(/^\./);
if (!m) return;
return pos({
// `type` specifies the compiler to use
type: 'dot',
val: m[0]
});
})
```
**AST node**
When the parser finds a match, `pos()` is called, pushing a token for that node onto the ast that looks something like:
```js
{ type: 'dot',
val: '.',
position:
{ start: { lineno: 1, column: 1 },
end: { lineno: 1, column: 2 } }}
```
**Renderers**
Renderers are _named_ middleware functions that visit over an array of ast nodes to compile a string.
```js
var res = snapdragon.compiler(ast)
.set('dot', function (node) {
console.log(node.val)
//=> '.'
return this.emit(node.val);
})
```
**Source maps**
If you want source map support, make sure to emit the position as well.
```js
var res = snapdragon.compiler(ast)
.set('dot', function (node) {
return this.emit(node.val, node.position);
})
```
## Docs
### Parser middleware
A parser middleware is a function that returns an abject called a `token`. This token is pushed onto the AST as a node.
**Example token**
```js
{ type: 'dot',
val: '.',
position:
{ start: { lineno: 1, column: 1 },
end: { lineno: 1, column: 2 } }}
```
**Example parser middleware**
Match a single `.` in a string:
1. Get the starting position by calling `this.position()`
2. pass a regex for matching a single dot to the `.match` method
3. if **no match** is found, return `undefined`
4. if a **match** is found, `pos()` is called, which returns a token with:
- `type`: the name of the [compiler] to use
- `val`: The actual value captured by the regex. In this case, a `.`. Note that you can capture and return whatever will be needed by the corresponding [compiler].
- The ending position: automatically calculated by adding the length of the first capture group to the starting position.
## Renderer middleware
Renderers are run when the name of the compiler middleware matches the `type` defined on an ast `node` (which is defined in a parser).
**Example**
Exercise: Parse a dot, then compile it as an escaped dot.
```js
var ast = snapdragon.parser('.')
.use(function () {
var pos = this.position();
var m = this.match(/^\./);
if (!m) return;
return pos({
// define the `type` of compiler to use
type: 'dot',
val: m[0]
})
})
var result = snapdragon.compiler(ast)
.set('dot', function (node) {
return this.emit('\\' + node.val);
})
.compile()
console.log(result.output);
//=> '\.'
```
## API
### [Parser](lib/parser.js#L19)
Create a new `Parser` with the given `input` and `options`.
**Params**
* `input` **{String}**
* `options` **{Object}**
### [.define](lib/parser.js#L103)
Define a non-enumberable property on the `Parser` instance.
**Example**
```js
parser.define('foo', 'bar');
```
**Params**
* `key` **{String}**: propery name
* `val` **{any}**: property value
* `returns` **{Object}**: Returns the Parser instance for chaining.
Set parser `name` with the given `fn`
**Params**
* `name` **{String}**
* `fn` **{Function}**
Get parser `name`
**Params**
* `name` **{String}**
Push a `token` onto the `type` stack.
**Params**
* `type` **{String}**
* `returns` **{Object}** `token`
Pop a token off of the `type` stack
**Params**
* `type` **{String}**
* `returns` **{Object}**: Returns a token
Return true if inside a `stack` node. Types are `braces`, `parens` or `brackets`.
**Params**
* `type` **{String}**
* `returns` **{Boolean}**
**Example**
```js
parser.isType(node, 'brace');
```
**Params**
* `node` **{Object}**
* `type` **{String}**
* `returns` **{Boolean}**
### [.define](lib/compiler.js#L71)
Define a non-enumberable property on the `Compiler` instance.
**Example**
```js
compiler.define('foo', 'bar');
```
**Params**
* `key` **{String}**: propery name
* `val` **{any}**: property value
* `returns` **{Object}**: Returns the Compiler instance for chaining.
## About
### Related projects
* [braces](https://www.npmjs.com/package/braces): Fastest brace expansion for node.js, with the most complete support for the Bash 4.3 braces… [more](https://github.com/jonschlinkert/braces) | [homepage](https://github.com/jonschlinkert/braces "Fastest brace expansion for node.js, with the most complete support for the Bash 4.3 braces specification.")
* [expand-brackets](https://www.npmjs.com/package/expand-brackets): Expand POSIX bracket expressions (character classes) in glob patterns. | [homepage](https://github.com/jonschlinkert/expand-brackets "Expand POSIX bracket expressions (character classes) in glob patterns.")
* [extglob](https://www.npmjs.com/package/extglob): Convert extended globs to regex-compatible strings. Add (almost) the expressive power of regular expressions to… [more](https://github.com/jonschlinkert/extglob) | [homepage](https://github.com/jonschlinkert/extglob "Convert extended globs to regex-compatible strings. Add (almost) the expressive power of regular expressions to glob patterns.")
* [micromatch](https://www.npmjs.com/package/micromatch): Glob matching for javascript/node.js. A drop-in replacement and faster alternative to minimatch and multimatch. | [homepage](https://github.com/jonschlinkert/micromatch "Glob matching for javascript/node.js. A drop-in replacement and faster alternative to minimatch and multimatch.")
### Contributing
Pull requests and stars are always welcome. For bugs and feature requests, [please create an issue](../../issues/new).
### Contributors
| **Commits** | **Contributor**<br/> |
| --- | --- |
| 106 | [jonschlinkert](https://github.com/jonschlinkert) |
| 2 | [doowb](https://github.com/doowb) |
### Building docs
_(This document was generated by [verb-generate-readme](https://github.com/verbose/verb-generate-readme) (a [verb](https://github.com/verbose/verb) generator), please don't edit the readme directly. Any changes to the readme must be made in [.verb.md](.verb.md).)_
To generate the readme and API documentation with [verb](https://github.com/verbose/verb):
```sh
$ npm install -g verb verb-generate-readme && verb
```
### Running tests
Install dev dependencies:
```sh
$ npm install -d && npm test
```
### Author
**Jon Schlinkert**
* [github/jonschlinkert](https://github.com/jonschlinkert)
* [twitter/jonschlinkert](http://twitter.com/jonschlinkert)
### License
Copyright © 2016, [Jon Schlinkert](https://github.com/jonschlinkert).
Released under the [MIT license](https://github.com/jonschlinkert/snapdragon/blob/master/LICENSE).
***
_This file was generated by [verb-generate-readme](https://github.com/verbose/verb-generate-readme), v0.1.31, on October 10, 2016._

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'use strict';
var Base = require('base');
var define = require('define-property');
var Compiler = require('./lib/compiler');
var Parser = require('./lib/parser');
var utils = require('./lib/utils');
var regexCache = {};
var cache = {};
/**
* Create a new instance of `Snapdragon` with the given `options`.
*
* ```js
* var snapdragon = new Snapdragon();
* ```
*
* @param {Object} `options`
* @api public
*/
function Snapdragon(options) {
Base.call(this, null, options);
this.options = utils.extend({source: 'string'}, this.options);
this.compiler = new Compiler(this.options);
this.parser = new Parser(this.options);
Object.defineProperty(this, 'compilers', {
get: function() {
return this.compiler.compilers;
}
});
Object.defineProperty(this, 'parsers', {
get: function() {
return this.parser.parsers;
}
});
Object.defineProperty(this, 'regex', {
get: function() {
return this.parser.regex;
}
});
}
/**
* Inherit Base
*/
Base.extend(Snapdragon);
/**
* Add a parser to `snapdragon.parsers` for capturing the given `type` using
* the specified regex or parser function. A function is useful if you need
* to customize how the token is created and/or have access to the parser
* instance to check options, etc.
*
* ```js
* snapdragon
* .capture('slash', /^\//)
* .capture('dot', function() {
* var pos = this.position();
* var m = this.match(/^\./);
* if (!m) return;
* return pos({
* type: 'dot',
* val: m[0]
* });
* });
* ```
* @param {String} `type`
* @param {RegExp|Function} `regex`
* @return {Object} Returns the parser instance for chaining
* @api public
*/
Snapdragon.prototype.capture = function() {
return this.parser.capture.apply(this.parser, arguments);
};
/**
* Register a plugin `fn`.
*
* ```js
* var snapdragon = new Snapdgragon([options]);
* snapdragon.use(function() {
* console.log(this); //<= snapdragon instance
* console.log(this.parser); //<= parser instance
* console.log(this.compiler); //<= compiler instance
* });
* ```
* @param {Object} `fn`
* @api public
*/
Snapdragon.prototype.use = function(fn) {
fn.call(this, this);
return this;
};
/**
* Parse the given `str`.
*
* ```js
* var snapdragon = new Snapdgragon([options]);
* // register parsers
* snapdragon.parser.use(function() {});
*
* // parse
* var ast = snapdragon.parse('foo/bar');
* console.log(ast);
* ```
* @param {String} `str`
* @param {Object} `options` Set `options.sourcemap` to true to enable source maps.
* @return {Object} Returns an AST.
* @api public
*/
Snapdragon.prototype.parse = function(str, options) {
this.options = utils.extend({}, this.options, options);
var parsed = this.parser.parse(str, this.options);
// add non-enumerable parser reference
define(parsed, 'parser', this.parser);
return parsed;
};
/**
* Compile the given `AST`.
*
* ```js
* var snapdragon = new Snapdgragon([options]);
* // register plugins
* snapdragon.use(function() {});
* // register parser plugins
* snapdragon.parser.use(function() {});
* // register compiler plugins
* snapdragon.compiler.use(function() {});
*
* // parse
* var ast = snapdragon.parse('foo/bar');
*
* // compile
* var res = snapdragon.compile(ast);
* console.log(res.output);
* ```
* @param {Object} `ast`
* @param {Object} `options`
* @return {Object} Returns an object with an `output` property with the rendered string.
* @api public
*/
Snapdragon.prototype.compile = function(ast, options) {
this.options = utils.extend({}, this.options, options);
var compiled = this.compiler.compile(ast, this.options);
// add non-enumerable compiler reference
define(compiled, 'compiler', this.compiler);
return compiled;
};
/**
* Expose `Snapdragon`
*/
module.exports = Snapdragon;
/**
* Expose `Parser` and `Compiler`
*/
module.exports.Compiler = Compiler;
module.exports.Parser = Parser;

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'use strict';
var use = require('use');
var define = require('define-property');
var debug = require('debug')('snapdragon:compiler');
var utils = require('./utils');
/**
* Create a new `Compiler` with the given `options`.
* @param {Object} `options`
*/
function Compiler(options, state) {
debug('initializing', __filename);
this.options = utils.extend({source: 'string'}, options);
this.state = state || {};
this.compilers = {};
this.output = '';
this.set('eos', function(node) {
return this.emit(node.val, node);
});
this.set('noop', function(node) {
return this.emit(node.val, node);
});
this.set('bos', function(node) {
return this.emit(node.val, node);
});
use(this);
}
/**
* Prototype methods
*/
Compiler.prototype = {
/**
* Throw an error message with details including the cursor position.
* @param {String} `msg` Message to use in the Error.
*/
error: function(msg, node) {
var pos = node.position || {start: {column: 0}};
var message = this.options.source + ' column:' + pos.start.column + ': ' + msg;
var err = new Error(message);
err.reason = msg;
err.column = pos.start.column;
err.source = this.pattern;
if (this.options.silent) {
this.errors.push(err);
} else {
throw err;
}
},
/**
* Define a non-enumberable property on the `Compiler` instance.
*
* ```js
* compiler.define('foo', 'bar');
* ```
* @name .define
* @param {String} `key` propery name
* @param {any} `val` property value
* @return {Object} Returns the Compiler instance for chaining.
* @api public
*/
define: function(key, val) {
define(this, key, val);
return this;
},
/**
* Emit `node.val`
*/
emit: function(str, node) {
this.output += str;
return str;
},
/**
* Add a compiler `fn` with the given `name`
*/
set: function(name, fn) {
this.compilers[name] = fn;
return this;
},
/**
* Get compiler `name`.
*/
get: function(name) {
return this.compilers[name];
},
/**
* Get the previous AST node.
*/
prev: function(n) {
return this.ast.nodes[this.idx - (n || 1)] || { type: 'bos', val: '' };
},
/**
* Get the next AST node.
*/
next: function(n) {
return this.ast.nodes[this.idx + (n || 1)] || { type: 'eos', val: '' };
},
/**
* Visit `node`.
*/
visit: function(node, nodes, i) {
var fn = this.compilers[node.type];
this.idx = i;
if (typeof fn !== 'function') {
throw this.error('compiler "' + node.type + '" is not registered', node);
}
return fn.call(this, node, nodes, i);
},
/**
* Map visit over array of `nodes`.
*/
mapVisit: function(nodes) {
if (!Array.isArray(nodes)) {
throw new TypeError('expected an array');
}
var len = nodes.length;
var idx = -1;
while (++idx < len) {
this.visit(nodes[idx], nodes, idx);
}
return this;
},
/**
* Compile `ast`.
*/
compile: function(ast, options) {
var opts = utils.extend({}, this.options, options);
this.ast = ast;
this.parsingErrors = this.ast.errors;
this.output = '';
// source map support
if (opts.sourcemap) {
var sourcemaps = require('./source-maps');
sourcemaps(this);
this.mapVisit(this.ast.nodes);
this.applySourceMaps();
this.map = opts.sourcemap === 'generator' ? this.map : this.map.toJSON();
return this;
}
this.mapVisit(this.ast.nodes);
return this;
}
};
/**
* Expose `Compiler`
*/
module.exports = Compiler;

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'use strict';
var use = require('use');
var util = require('util');
var Cache = require('map-cache');
var define = require('define-property');
var debug = require('debug')('snapdragon:parser');
var Position = require('./position');
var utils = require('./utils');
/**
* Create a new `Parser` with the given `input` and `options`.
* @param {String} `input`
* @param {Object} `options`
* @api public
*/
function Parser(options) {
debug('initializing', __filename);
this.options = utils.extend({source: 'string'}, options);
this.init(this.options);
use(this);
}
/**
* Prototype methods
*/
Parser.prototype = {
constructor: Parser,
init: function(options) {
this.orig = '';
this.input = '';
this.parsed = '';
this.column = 1;
this.line = 1;
this.regex = new Cache();
this.errors = this.errors || [];
this.parsers = this.parsers || {};
this.types = this.types || [];
this.sets = this.sets || {};
this.fns = this.fns || [];
this.currentType = 'root';
var pos = this.position();
this.bos = pos({type: 'bos', val: ''});
this.ast = {
type: 'root',
errors: this.errors,
nodes: [this.bos]
};
define(this.bos, 'parent', this.ast);
this.nodes = [this.ast];
this.count = 0;
this.setCount = 0;
this.stack = [];
},
/**
* Throw a formatted error with the cursor column and `msg`.
* @param {String} `msg` Message to use in the Error.
*/
error: function(msg, node) {
var pos = node.position || {start: {column: 0, line: 0}};
var line = pos.start.line;
var column = pos.start.column;
var source = this.options.source;
var message = source + ' <line:' + line + ' column:' + column + '>: ' + msg;
var err = new Error(message);
err.source = source;
err.reason = msg;
err.pos = pos;
if (this.options.silent) {
this.errors.push(err);
} else {
throw err;
}
},
/**
* Define a non-enumberable property on the `Parser` instance.
*
* ```js
* parser.define('foo', 'bar');
* ```
* @name .define
* @param {String} `key` propery name
* @param {any} `val` property value
* @return {Object} Returns the Parser instance for chaining.
* @api public
*/
define: function(key, val) {
define(this, key, val);
return this;
},
/**
* Mark position and patch `node.position`.
*/
position: function() {
var start = { line: this.line, column: this.column };
var self = this;
return function(node) {
define(node, 'position', new Position(start, self));
return node;
};
},
/**
* Set parser `name` with the given `fn`
* @param {String} `name`
* @param {Function} `fn`
* @api public
*/
set: function(type, fn) {
if (this.types.indexOf(type) === -1) {
this.types.push(type);
}
this.parsers[type] = fn.bind(this);
return this;
},
/**
* Get parser `name`
* @param {String} `name`
* @api public
*/
get: function(name) {
return this.parsers[name];
},
/**
* Push a `token` onto the `type` stack.
*
* @param {String} `type`
* @return {Object} `token`
* @api public
*/
push: function(type, token) {
this.sets[type] = this.sets[type] || [];
this.count++;
this.stack.push(token);
return this.sets[type].push(token);
},
/**
* Pop a token off of the `type` stack
* @param {String} `type`
* @returns {Object} Returns a token
* @api public
*/
pop: function(type) {
this.sets[type] = this.sets[type] || [];
this.count--;
this.stack.pop();
return this.sets[type].pop();
},
/**
* Return true if inside a `stack` node. Types are `braces`, `parens` or `brackets`.
*
* @param {String} `type`
* @return {Boolean}
* @api public
*/
isInside: function(type) {
this.sets[type] = this.sets[type] || [];
return this.sets[type].length > 0;
},
/**
* Return true if `node` is the given `type`.
*
* ```js
* parser.isType(node, 'brace');
* ```
* @param {Object} `node`
* @param {String} `type`
* @return {Boolean}
* @api public
*/
isType: function(node, type) {
return node && node.type === type;
},
/**
* Get the previous AST node
* @return {Object}
*/
prev: function(n) {
return this.stack.length > 0
? utils.last(this.stack, n)
: utils.last(this.nodes, n);
},
/**
* Update line and column based on `str`.
*/
consume: function(len) {
this.input = this.input.substr(len);
},
/**
* Update column based on `str`.
*/
updatePosition: function(str, len) {
var lines = str.match(/\n/g);
if (lines) this.line += lines.length;
var i = str.lastIndexOf('\n');
this.column = ~i ? len - i : this.column + len;
this.parsed += str;
this.consume(len);
},
/**
* Match `regex`, return captures, and update the cursor position by `match[0]` length.
* @param {RegExp} `regex`
* @return {Object}
*/
match: function(regex) {
var m = regex.exec(this.input);
if (m) {
this.updatePosition(m[0], m[0].length);
return m;
}
},
/**
* Capture `type` with the given regex.
* @param {String} `type`
* @param {RegExp} `regex`
* @return {Function}
*/
capture: function(type, regex) {
if (typeof regex === 'function') {
return this.set.apply(this, arguments);
}
this.regex.set(type, regex);
this.set(type, function() {
var parsed = this.parsed;
var pos = this.position();
var m = this.match(regex);
if (!m || !m[0]) return;
var prev = this.prev();
var node = pos({
type: type,
val: m[0],
parsed: parsed,
rest: this.input
});
if (m[1]) {
node.inner = m[1];
}
define(node, 'inside', this.stack.length > 0);
define(node, 'parent', prev);
prev.nodes.push(node);
}.bind(this));
return this;
},
/**
* Create a parser with open and close for parens,
* brackets or braces
*/
capturePair: function(type, openRegex, closeRegex, fn) {
this.sets[type] = this.sets[type] || [];
/**
* Open
*/
this.set(type + '.open', function() {
var parsed = this.parsed;
var pos = this.position();
var m = this.match(openRegex);
if (!m || !m[0]) return;
var val = m[0];
this.setCount++;
this.specialChars = true;
var open = pos({
type: type + '.open',
val: val,
rest: this.input
});
if (typeof m[1] !== 'undefined') {
open.inner = m[1];
}
var prev = this.prev();
var node = pos({
type: type,
nodes: [open]
});
define(node, 'rest', this.input);
define(node, 'parsed', parsed);
define(node, 'prefix', m[1]);
define(node, 'parent', prev);
define(open, 'parent', node);
if (typeof fn === 'function') {
fn.call(this, open, node);
}
this.push(type, node);
prev.nodes.push(node);
});
/**
* Close
*/
this.set(type + '.close', function() {
var pos = this.position();
var m = this.match(closeRegex);
if (!m || !m[0]) return;
var parent = this.pop(type);
var node = pos({
type: type + '.close',
rest: this.input,
suffix: m[1],
val: m[0]
});
if (!this.isType(parent, type)) {
if (this.options.strict) {
throw new Error('missing opening "' + type + '"');
}
this.setCount--;
node.escaped = true;
return node;
}
if (node.suffix === '\\') {
parent.escaped = true;
node.escaped = true;
}
parent.nodes.push(node);
define(node, 'parent', parent);
});
return this;
},
/**
* Capture end-of-string
*/
eos: function() {
var pos = this.position();
if (this.input) return;
var prev = this.prev();
while (prev.type !== 'root' && !prev.visited) {
if (this.options.strict === true) {
throw new SyntaxError('invalid syntax:' + util.inspect(prev, null, 2));
}
if (!hasDelims(prev)) {
prev.parent.escaped = true;
prev.escaped = true;
}
visit(prev, function(node) {
if (!hasDelims(node.parent)) {
node.parent.escaped = true;
node.escaped = true;
}
});
prev = prev.parent;
}
var tok = pos({
type: 'eos',
val: this.append || ''
});
define(tok, 'parent', this.ast);
return tok;
},
/**
* Run parsers to advance the cursor position
*/
next: function() {
var parsed = this.parsed;
var len = this.types.length;
var idx = -1;
var tok;
while (++idx < len) {
if ((tok = this.parsers[this.types[idx]].call(this))) {
define(tok, 'rest', this.input);
define(tok, 'parsed', parsed);
this.last = tok;
return tok;
}
}
},
/**
* Parse the given string.
* @return {Array}
*/
parse: function(input) {
if (typeof input !== 'string') {
throw new TypeError('expected a string');
}
this.init(this.options);
this.orig = input;
this.input = input;
var self = this;
function parse() {
// check input before calling `.next()`
input = self.input;
// get the next AST ndoe
var node = self.next();
if (node) {
var prev = self.prev();
if (prev) {
define(node, 'parent', prev);
if (prev.nodes) {
prev.nodes.push(node);
}
}
if (self.sets.hasOwnProperty(prev.type)) {
self.currentType = prev.type;
}
}
// if we got here but input is not changed, throw an error
if (self.input && input === self.input) {
throw new Error('no parsers registered for: "' + self.input.slice(0, 5) + '"');
}
}
while (this.input) parse();
if (this.stack.length && this.options.strict) {
var node = this.stack.pop();
throw this.error('missing opening ' + node.type + ': "' + this.orig + '"');
}
var eos = this.eos();
var tok = this.prev();
if (tok.type !== 'eos') {
this.ast.nodes.push(eos);
}
return this.ast;
}
};
/**
* Visit `node` with the given `fn`
*/
function visit(node, fn) {
if (!node.visited) {
define(node, 'visited', true);
return node.nodes ? mapVisit(node.nodes, fn) : fn(node);
}
return node;
}
/**
* Map visit over array of `nodes`.
*/
function mapVisit(nodes, fn) {
var len = nodes.length;
var idx = -1;
while (++idx < len) {
visit(nodes[idx], fn);
}
}
function hasOpen(node) {
return node.nodes && node.nodes[0].type === (node.type + '.open');
}
function hasClose(node) {
return node.nodes && utils.last(node.nodes).type === (node.type + '.close');
}
function hasDelims(node) {
return hasOpen(node) && hasClose(node);
}
/**
* Expose `Parser`
*/
module.exports = Parser;

14
node_modules/snapdragon/lib/position.js generated vendored Normal file
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@ -0,0 +1,14 @@
'use strict';
var define = require('define-property');
/**
* Store position for a node
*/
module.exports = function Position(start, parser) {
this.start = start;
this.end = { line: parser.line, column: parser.column };
define(this, 'content', parser.orig);
define(this, 'source', parser.options.source);
};

145
node_modules/snapdragon/lib/source-maps.js generated vendored Normal file
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@ -0,0 +1,145 @@
'use strict';
var fs = require('fs');
var path = require('path');
var define = require('define-property');
var utils = require('./utils');
/**
* Expose `mixin()`.
* This code is based on `source-maps-support.js` in reworkcss/css
* https://github.com/reworkcss/css/blob/master/lib/stringify/source-map-support.js
* Copyright (c) 2012 TJ Holowaychuk <tj@vision-media.ca>
*/
module.exports = mixin;
/**
* Mixin source map support into `compiler`.
*
* @param {Object} `compiler`
* @api public
*/
function mixin(compiler) {
define(compiler, '_comment', compiler.comment);
compiler.map = new utils.SourceMap.SourceMapGenerator();
compiler.position = { line: 1, column: 1 };
compiler.content = {};
compiler.files = {};
for (var key in exports) {
define(compiler, key, exports[key]);
}
}
/**
* Update position.
*
* @param {String} str
*/
exports.updatePosition = function(str) {
var lines = str.match(/\n/g);
if (lines) this.position.line += lines.length;
var i = str.lastIndexOf('\n');
this.position.column = ~i ? str.length - i : this.position.column + str.length;
};
/**
* Emit `str` with `position`.
*
* @param {String} str
* @param {Object} [pos]
* @return {String}
*/
exports.emit = function(str, node) {
var position = node.position || {};
var source = position.source;
if (source) {
if (position.filepath) {
source = utils.unixify(position.filepath);
}
this.map.addMapping({
source: source,
generated: {
line: this.position.line,
column: Math.max(this.position.column - 1, 0)
},
original: {
line: position.start.line,
column: position.start.column - 1
}
});
if (position.content) {
this.addContent(source, position);
}
if (position.filepath) {
this.addFile(source, position);
}
this.updatePosition(str);
this.output += str;
}
return str;
};
/**
* Adds a file to the source map output if it has not already been added
* @param {String} `file`
* @param {Object} `pos`
*/
exports.addFile = function(file, position) {
if (typeof position.content !== 'string') return;
if (Object.prototype.hasOwnProperty.call(this.files, file)) return;
this.files[file] = position.content;
};
/**
* Adds a content source to the source map output if it has not already been added
* @param {String} `source`
* @param {Object} `position`
*/
exports.addContent = function(source, position) {
if (typeof position.content !== 'string') return;
if (Object.prototype.hasOwnProperty.call(this.content, source)) return;
this.map.setSourceContent(source, position.content);
};
/**
* Applies any original source maps to the output and embeds the source file
* contents in the source map.
*/
exports.applySourceMaps = function() {
Object.keys(this.files).forEach(function(file) {
var content = this.files[file];
this.map.setSourceContent(file, content);
if (this.options.inputSourcemaps === true) {
var originalMap = utils.sourceMapResolve.resolveSync(content, file, fs.readFileSync);
if (originalMap) {
var map = new utils.SourceMap.SourceMapConsumer(originalMap.map);
var relativeTo = originalMap.sourcesRelativeTo;
this.map.applySourceMap(map, file, utils.unixify(path.dirname(relativeTo)));
}
}
}, this);
};
/**
* Process comments, drops sourceMap comments.
* @param {Object} node
*/
exports.comment = function(node) {
if (/^# sourceMappingURL=/.test(node.comment)) {
return this.emit('', node.position);
}
return this._comment(node);
};

48
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@ -0,0 +1,48 @@
'use strict';
/**
* Module dependencies
*/
exports.extend = require('extend-shallow');
exports.SourceMap = require('source-map');
exports.sourceMapResolve = require('source-map-resolve');
/**
* Convert backslash in the given string to forward slashes
*/
exports.unixify = function(fp) {
return fp.split(/\\+/).join('/');
};
/**
* Return true if `val` is a non-empty string
*
* @param {String} `str`
* @return {Boolean}
*/
exports.isString = function(str) {
return str && typeof str === 'string';
};
/**
* Cast `val` to an array
* @return {Array}
*/
exports.arrayify = function(val) {
if (typeof val === 'string') return [val];
return val ? (Array.isArray(val) ? val : [val]) : [];
};
/**
* Get the last `n` element from the given `array`
* @param {Array} `array`
* @return {*}
*/
exports.last = function(arr, n) {
return arr[arr.length - (n || 1)];
};

1
node_modules/snapdragon/node_modules/debug/.coveralls.yml generated vendored Normal file
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@ -0,0 +1 @@
repo_token: SIAeZjKYlHK74rbcFvNHMUzjRiMpflxve

11
node_modules/snapdragon/node_modules/debug/.eslintrc generated vendored Normal file
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@ -0,0 +1,11 @@
{
"env": {
"browser": true,
"node": true
},
"rules": {
"no-console": 0,
"no-empty": [1, { "allowEmptyCatch": true }]
},
"extends": "eslint:recommended"
}

9
node_modules/snapdragon/node_modules/debug/.npmignore generated vendored Normal file
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@ -0,0 +1,9 @@
support
test
examples
example
*.sock
dist
yarn.lock
coverage
bower.json

14
node_modules/snapdragon/node_modules/debug/.travis.yml generated vendored Normal file
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@ -0,0 +1,14 @@
language: node_js
node_js:
- "6"
- "5"
- "4"
install:
- make node_modules
script:
- make lint
- make test
- make coveralls

362
node_modules/snapdragon/node_modules/debug/CHANGELOG.md generated vendored Normal file
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@ -0,0 +1,362 @@
2.6.9 / 2017-09-22
==================
* remove ReDoS regexp in %o formatter (#504)
2.6.8 / 2017-05-18
==================
* Fix: Check for undefined on browser globals (#462, @marbemac)
2.6.7 / 2017-05-16
==================
* Fix: Update ms to 2.0.0 to fix regular expression denial of service vulnerability (#458, @hubdotcom)
* Fix: Inline extend function in node implementation (#452, @dougwilson)
* Docs: Fix typo (#455, @msasad)
2.6.5 / 2017-04-27
==================
* Fix: null reference check on window.documentElement.style.WebkitAppearance (#447, @thebigredgeek)
* Misc: clean up browser reference checks (#447, @thebigredgeek)
* Misc: add npm-debug.log to .gitignore (@thebigredgeek)
2.6.4 / 2017-04-20
==================
* Fix: bug that would occure if process.env.DEBUG is a non-string value. (#444, @LucianBuzzo)
* Chore: ignore bower.json in npm installations. (#437, @joaovieira)
* Misc: update "ms" to v0.7.3 (@tootallnate)
2.6.3 / 2017-03-13
==================
* Fix: Electron reference to `process.env.DEBUG` (#431, @paulcbetts)
* Docs: Changelog fix (@thebigredgeek)
2.6.2 / 2017-03-10
==================
* Fix: DEBUG_MAX_ARRAY_LENGTH (#420, @slavaGanzin)
* Docs: Add backers and sponsors from Open Collective (#422, @piamancini)
* Docs: Add Slackin invite badge (@tootallnate)
2.6.1 / 2017-02-10
==================
* Fix: Module's `export default` syntax fix for IE8 `Expected identifier` error
* Fix: Whitelist DEBUG_FD for values 1 and 2 only (#415, @pi0)
* Fix: IE8 "Expected identifier" error (#414, @vgoma)
* Fix: Namespaces would not disable once enabled (#409, @musikov)
2.6.0 / 2016-12-28
==================
* Fix: added better null pointer checks for browser useColors (@thebigredgeek)
* Improvement: removed explicit `window.debug` export (#404, @tootallnate)
* Improvement: deprecated `DEBUG_FD` environment variable (#405, @tootallnate)
2.5.2 / 2016-12-25
==================
* Fix: reference error on window within webworkers (#393, @KlausTrainer)
* Docs: fixed README typo (#391, @lurch)
* Docs: added notice about v3 api discussion (@thebigredgeek)
2.5.1 / 2016-12-20
==================
* Fix: babel-core compatibility
2.5.0 / 2016-12-20
==================
* Fix: wrong reference in bower file (@thebigredgeek)
* Fix: webworker compatibility (@thebigredgeek)
* Fix: output formatting issue (#388, @kribblo)
* Fix: babel-loader compatibility (#383, @escwald)
* Misc: removed built asset from repo and publications (@thebigredgeek)
* Misc: moved source files to /src (#378, @yamikuronue)
* Test: added karma integration and replaced babel with browserify for browser tests (#378, @yamikuronue)
* Test: coveralls integration (#378, @yamikuronue)
* Docs: simplified language in the opening paragraph (#373, @yamikuronue)
2.4.5 / 2016-12-17
==================
* Fix: `navigator` undefined in Rhino (#376, @jochenberger)
* Fix: custom log function (#379, @hsiliev)
* Improvement: bit of cleanup + linting fixes (@thebigredgeek)
* Improvement: rm non-maintainted `dist/` dir (#375, @freewil)
* Docs: simplified language in the opening paragraph. (#373, @yamikuronue)
2.4.4 / 2016-12-14
==================
* Fix: work around debug being loaded in preload scripts for electron (#368, @paulcbetts)
2.4.3 / 2016-12-14
==================
* Fix: navigation.userAgent error for react native (#364, @escwald)
2.4.2 / 2016-12-14
==================
* Fix: browser colors (#367, @tootallnate)
* Misc: travis ci integration (@thebigredgeek)
* Misc: added linting and testing boilerplate with sanity check (@thebigredgeek)
2.4.1 / 2016-12-13
==================
* Fix: typo that broke the package (#356)
2.4.0 / 2016-12-13
==================
* Fix: bower.json references unbuilt src entry point (#342, @justmatt)
* Fix: revert "handle regex special characters" (@tootallnate)
* Feature: configurable util.inspect()`options for NodeJS (#327, @tootallnate)
* Feature: %O`(big O) pretty-prints objects (#322, @tootallnate)
* Improvement: allow colors in workers (#335, @botverse)
* Improvement: use same color for same namespace. (#338, @lchenay)
2.3.3 / 2016-11-09
==================
* Fix: Catch `JSON.stringify()` errors (#195, Jovan Alleyne)
* Fix: Returning `localStorage` saved values (#331, Levi Thomason)
* Improvement: Don't create an empty object when no `process` (Nathan Rajlich)
2.3.2 / 2016-11-09
==================
* Fix: be super-safe in index.js as well (@TooTallNate)
* Fix: should check whether process exists (Tom Newby)
2.3.1 / 2016-11-09
==================
* Fix: Added electron compatibility (#324, @paulcbetts)
* Improvement: Added performance optimizations (@tootallnate)
* Readme: Corrected PowerShell environment variable example (#252, @gimre)
* Misc: Removed yarn lock file from source control (#321, @fengmk2)
2.3.0 / 2016-11-07
==================
* Fix: Consistent placement of ms diff at end of output (#215, @gorangajic)
* Fix: Escaping of regex special characters in namespace strings (#250, @zacronos)
* Fix: Fixed bug causing crash on react-native (#282, @vkarpov15)
* Feature: Enabled ES6+ compatible import via default export (#212 @bucaran)
* Feature: Added %O formatter to reflect Chrome's console.log capability (#279, @oncletom)
* Package: Update "ms" to 0.7.2 (#315, @DevSide)
* Package: removed superfluous version property from bower.json (#207 @kkirsche)
* Readme: fix USE_COLORS to DEBUG_COLORS
* Readme: Doc fixes for format string sugar (#269, @mlucool)
* Readme: Updated docs for DEBUG_FD and DEBUG_COLORS environment variables (#232, @mattlyons0)
* Readme: doc fixes for PowerShell (#271 #243, @exoticknight @unreadable)
* Readme: better docs for browser support (#224, @matthewmueller)
* Tooling: Added yarn integration for development (#317, @thebigredgeek)
* Misc: Renamed History.md to CHANGELOG.md (@thebigredgeek)
* Misc: Added license file (#226 #274, @CantemoInternal @sdaitzman)
* Misc: Updated contributors (@thebigredgeek)
2.2.0 / 2015-05-09
==================
* package: update "ms" to v0.7.1 (#202, @dougwilson)
* README: add logging to file example (#193, @DanielOchoa)
* README: fixed a typo (#191, @amir-s)
* browser: expose `storage` (#190, @stephenmathieson)
* Makefile: add a `distclean` target (#189, @stephenmathieson)
2.1.3 / 2015-03-13
==================
* Updated stdout/stderr example (#186)
* Updated example/stdout.js to match debug current behaviour
* Renamed example/stderr.js to stdout.js
* Update Readme.md (#184)
* replace high intensity foreground color for bold (#182, #183)
2.1.2 / 2015-03-01
==================
* dist: recompile
* update "ms" to v0.7.0
* package: update "browserify" to v9.0.3
* component: fix "ms.js" repo location
* changed bower package name
* updated documentation about using debug in a browser
* fix: security error on safari (#167, #168, @yields)
2.1.1 / 2014-12-29
==================
* browser: use `typeof` to check for `console` existence
* browser: check for `console.log` truthiness (fix IE 8/9)
* browser: add support for Chrome apps
* Readme: added Windows usage remarks
* Add `bower.json` to properly support bower install
2.1.0 / 2014-10-15
==================
* node: implement `DEBUG_FD` env variable support
* package: update "browserify" to v6.1.0
* package: add "license" field to package.json (#135, @panuhorsmalahti)
2.0.0 / 2014-09-01
==================
* package: update "browserify" to v5.11.0
* node: use stderr rather than stdout for logging (#29, @stephenmathieson)
1.0.4 / 2014-07-15
==================
* dist: recompile
* example: remove `console.info()` log usage
* example: add "Content-Type" UTF-8 header to browser example
* browser: place %c marker after the space character
* browser: reset the "content" color via `color: inherit`
* browser: add colors support for Firefox >= v31
* debug: prefer an instance `log()` function over the global one (#119)
* Readme: update documentation about styled console logs for FF v31 (#116, @wryk)
1.0.3 / 2014-07-09
==================
* Add support for multiple wildcards in namespaces (#122, @seegno)
* browser: fix lint
1.0.2 / 2014-06-10
==================
* browser: update color palette (#113, @gscottolson)
* common: make console logging function configurable (#108, @timoxley)
* node: fix %o colors on old node <= 0.8.x
* Makefile: find node path using shell/which (#109, @timoxley)
1.0.1 / 2014-06-06
==================
* browser: use `removeItem()` to clear localStorage
* browser, node: don't set DEBUG if namespaces is undefined (#107, @leedm777)
* package: add "contributors" section
* node: fix comment typo
* README: list authors
1.0.0 / 2014-06-04
==================
* make ms diff be global, not be scope
* debug: ignore empty strings in enable()
* node: make DEBUG_COLORS able to disable coloring
* *: export the `colors` array
* npmignore: don't publish the `dist` dir
* Makefile: refactor to use browserify
* package: add "browserify" as a dev dependency
* Readme: add Web Inspector Colors section
* node: reset terminal color for the debug content
* node: map "%o" to `util.inspect()`
* browser: map "%j" to `JSON.stringify()`
* debug: add custom "formatters"
* debug: use "ms" module for humanizing the diff
* Readme: add "bash" syntax highlighting
* browser: add Firebug color support
* browser: add colors for WebKit browsers
* node: apply log to `console`
* rewrite: abstract common logic for Node & browsers
* add .jshintrc file
0.8.1 / 2014-04-14
==================
* package: re-add the "component" section
0.8.0 / 2014-03-30
==================
* add `enable()` method for nodejs. Closes #27
* change from stderr to stdout
* remove unnecessary index.js file
0.7.4 / 2013-11-13
==================
* remove "browserify" key from package.json (fixes something in browserify)
0.7.3 / 2013-10-30
==================
* fix: catch localStorage security error when cookies are blocked (Chrome)
* add debug(err) support. Closes #46
* add .browser prop to package.json. Closes #42
0.7.2 / 2013-02-06
==================
* fix package.json
* fix: Mobile Safari (private mode) is broken with debug
* fix: Use unicode to send escape character to shell instead of octal to work with strict mode javascript
0.7.1 / 2013-02-05
==================
* add repository URL to package.json
* add DEBUG_COLORED to force colored output
* add browserify support
* fix component. Closes #24
0.7.0 / 2012-05-04
==================
* Added .component to package.json
* Added debug.component.js build
0.6.0 / 2012-03-16
==================
* Added support for "-" prefix in DEBUG [Vinay Pulim]
* Added `.enabled` flag to the node version [TooTallNate]
0.5.0 / 2012-02-02
==================
* Added: humanize diffs. Closes #8
* Added `debug.disable()` to the CS variant
* Removed padding. Closes #10
* Fixed: persist client-side variant again. Closes #9
0.4.0 / 2012-02-01
==================
* Added browser variant support for older browsers [TooTallNate]
* Added `debug.enable('project:*')` to browser variant [TooTallNate]
* Added padding to diff (moved it to the right)
0.3.0 / 2012-01-26
==================
* Added millisecond diff when isatty, otherwise UTC string
0.2.0 / 2012-01-22
==================
* Added wildcard support
0.1.0 / 2011-12-02
==================
* Added: remove colors unless stderr isatty [TooTallNate]
0.0.1 / 2010-01-03
==================
* Initial release

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node_modules/snapdragon/node_modules/debug/LICENSE generated vendored Normal file
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@ -0,0 +1,19 @@
(The MIT License)
Copyright (c) 2014 TJ Holowaychuk <tj@vision-media.ca>
Permission is hereby granted, free of charge, to any person obtaining a copy of this software
and associated documentation files (the 'Software'), to deal in the Software without restriction,
including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense,
and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so,
subject to the following conditions:
The above copyright notice and this permission notice shall be included in all copies or substantial
portions of the Software.
THE SOFTWARE IS PROVIDED 'AS IS', WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT
LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

50
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@ -0,0 +1,50 @@
# get Makefile directory name: http://stackoverflow.com/a/5982798/376773
THIS_MAKEFILE_PATH:=$(word $(words $(MAKEFILE_LIST)),$(MAKEFILE_LIST))
THIS_DIR:=$(shell cd $(dir $(THIS_MAKEFILE_PATH));pwd)
# BIN directory
BIN := $(THIS_DIR)/node_modules/.bin
# Path
PATH := node_modules/.bin:$(PATH)
SHELL := /bin/bash
# applications
NODE ?= $(shell which node)
YARN ?= $(shell which yarn)
PKG ?= $(if $(YARN),$(YARN),$(NODE) $(shell which npm))
BROWSERIFY ?= $(NODE) $(BIN)/browserify
.FORCE:
install: node_modules
node_modules: package.json
@NODE_ENV= $(PKG) install
@touch node_modules
lint: .FORCE
eslint browser.js debug.js index.js node.js
test-node: .FORCE
istanbul cover node_modules/mocha/bin/_mocha -- test/**.js
test-browser: .FORCE
mkdir -p dist
@$(BROWSERIFY) \
--standalone debug \
. > dist/debug.js
karma start --single-run
rimraf dist
test: .FORCE
concurrently \
"make test-node" \
"make test-browser"
coveralls:
cat ./coverage/lcov.info | ./node_modules/coveralls/bin/coveralls.js
.PHONY: all install clean distclean

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# debug
[![Build Status](https://travis-ci.org/visionmedia/debug.svg?branch=master)](https://travis-ci.org/visionmedia/debug) [![Coverage Status](https://coveralls.io/repos/github/visionmedia/debug/badge.svg?branch=master)](https://coveralls.io/github/visionmedia/debug?branch=master) [![Slack](https://visionmedia-community-slackin.now.sh/badge.svg)](https://visionmedia-community-slackin.now.sh/) [![OpenCollective](https://opencollective.com/debug/backers/badge.svg)](#backers)
[![OpenCollective](https://opencollective.com/debug/sponsors/badge.svg)](#sponsors)
A tiny node.js debugging utility modelled after node core's debugging technique.
**Discussion around the V3 API is under way [here](https://github.com/visionmedia/debug/issues/370)**
## Installation
```bash
$ npm install debug
```
## Usage
`debug` exposes a function; simply pass this function the name of your module, and it will return a decorated version of `console.error` for you to pass debug statements to. This will allow you to toggle the debug output for different parts of your module as well as the module as a whole.
Example _app.js_:
```js
var debug = require('debug')('http')
, http = require('http')
, name = 'My App';
// fake app
debug('booting %s', name);
http.createServer(function(req, res){
debug(req.method + ' ' + req.url);
res.end('hello\n');
}).listen(3000, function(){
debug('listening');
});
// fake worker of some kind
require('./worker');
```
Example _worker.js_:
```js
var debug = require('debug')('worker');
setInterval(function(){
debug('doing some work');
}, 1000);
```
The __DEBUG__ environment variable is then used to enable these based on space or comma-delimited names. Here are some examples:
![debug http and worker](http://f.cl.ly/items/18471z1H402O24072r1J/Screenshot.png)
![debug worker](http://f.cl.ly/items/1X413v1a3M0d3C2c1E0i/Screenshot.png)
#### Windows note
On Windows the environment variable is set using the `set` command.
```cmd
set DEBUG=*,-not_this
```
Note that PowerShell uses different syntax to set environment variables.
```cmd
$env:DEBUG = "*,-not_this"
```
Then, run the program to be debugged as usual.
## Millisecond diff
When actively developing an application it can be useful to see when the time spent between one `debug()` call and the next. Suppose for example you invoke `debug()` before requesting a resource, and after as well, the "+NNNms" will show you how much time was spent between calls.
![](http://f.cl.ly/items/2i3h1d3t121M2Z1A3Q0N/Screenshot.png)
When stdout is not a TTY, `Date#toUTCString()` is used, making it more useful for logging the debug information as shown below:
![](http://f.cl.ly/items/112H3i0e0o0P0a2Q2r11/Screenshot.png)
## Conventions
If you're using this in one or more of your libraries, you _should_ use the name of your library so that developers may toggle debugging as desired without guessing names. If you have more than one debuggers you _should_ prefix them with your library name and use ":" to separate features. For example "bodyParser" from Connect would then be "connect:bodyParser".
## Wildcards
The `*` character may be used as a wildcard. Suppose for example your library has debuggers named "connect:bodyParser", "connect:compress", "connect:session", instead of listing all three with `DEBUG=connect:bodyParser,connect:compress,connect:session`, you may simply do `DEBUG=connect:*`, or to run everything using this module simply use `DEBUG=*`.
You can also exclude specific debuggers by prefixing them with a "-" character. For example, `DEBUG=*,-connect:*` would include all debuggers except those starting with "connect:".
## Environment Variables
When running through Node.js, you can set a few environment variables that will
change the behavior of the debug logging:
| Name | Purpose |
|-----------|-------------------------------------------------|
| `DEBUG` | Enables/disables specific debugging namespaces. |
| `DEBUG_COLORS`| Whether or not to use colors in the debug output. |
| `DEBUG_DEPTH` | Object inspection depth. |
| `DEBUG_SHOW_HIDDEN` | Shows hidden properties on inspected objects. |
__Note:__ The environment variables beginning with `DEBUG_` end up being
converted into an Options object that gets used with `%o`/`%O` formatters.
See the Node.js documentation for
[`util.inspect()`](https://nodejs.org/api/util.html#util_util_inspect_object_options)
for the complete list.
## Formatters
Debug uses [printf-style](https://wikipedia.org/wiki/Printf_format_string) formatting. Below are the officially supported formatters:
| Formatter | Representation |
|-----------|----------------|
| `%O` | Pretty-print an Object on multiple lines. |
| `%o` | Pretty-print an Object all on a single line. |
| `%s` | String. |
| `%d` | Number (both integer and float). |
| `%j` | JSON. Replaced with the string '[Circular]' if the argument contains circular references. |
| `%%` | Single percent sign ('%'). This does not consume an argument. |
### Custom formatters
You can add custom formatters by extending the `debug.formatters` object. For example, if you wanted to add support for rendering a Buffer as hex with `%h`, you could do something like:
```js
const createDebug = require('debug')
createDebug.formatters.h = (v) => {
return v.toString('hex')
}
// …elsewhere
const debug = createDebug('foo')
debug('this is hex: %h', new Buffer('hello world'))
// foo this is hex: 68656c6c6f20776f726c6421 +0ms
```
## Browser support
You can build a browser-ready script using [browserify](https://github.com/substack/node-browserify),
or just use the [browserify-as-a-service](https://wzrd.in/) [build](https://wzrd.in/standalone/debug@latest),
if you don't want to build it yourself.
Debug's enable state is currently persisted by `localStorage`.
Consider the situation shown below where you have `worker:a` and `worker:b`,
and wish to debug both. You can enable this using `localStorage.debug`:
```js
localStorage.debug = 'worker:*'
```
And then refresh the page.
```js
a = debug('worker:a');
b = debug('worker:b');
setInterval(function(){
a('doing some work');
}, 1000);
setInterval(function(){
b('doing some work');
}, 1200);
```
#### Web Inspector Colors
Colors are also enabled on "Web Inspectors" that understand the `%c` formatting
option. These are WebKit web inspectors, Firefox ([since version
31](https://hacks.mozilla.org/2014/05/editable-box-model-multiple-selection-sublime-text-keys-much-more-firefox-developer-tools-episode-31/))
and the Firebug plugin for Firefox (any version).
Colored output looks something like:
![](https://cloud.githubusercontent.com/assets/71256/3139768/b98c5fd8-e8ef-11e3-862a-f7253b6f47c6.png)
## Output streams
By default `debug` will log to stderr, however this can be configured per-namespace by overriding the `log` method:
Example _stdout.js_:
```js
var debug = require('debug');
var error = debug('app:error');
// by default stderr is used
error('goes to stderr!');
var log = debug('app:log');
// set this namespace to log via console.log
log.log = console.log.bind(console); // don't forget to bind to console!
log('goes to stdout');
error('still goes to stderr!');
// set all output to go via console.info
// overrides all per-namespace log settings
debug.log = console.info.bind(console);
error('now goes to stdout via console.info');
log('still goes to stdout, but via console.info now');
```
## Authors
- TJ Holowaychuk
- Nathan Rajlich
- Andrew Rhyne
## Backers
Support us with a monthly donation and help us continue our activities. [[Become a backer](https://opencollective.com/debug#backer)]
<a href="https://opencollective.com/debug/backer/0/website" target="_blank"><img src="https://opencollective.com/debug/backer/0/avatar.svg"></a>
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## Sponsors
Become a sponsor and get your logo on our README on Github with a link to your site. [[Become a sponsor](https://opencollective.com/debug#sponsor)]
<a href="https://opencollective.com/debug/sponsor/0/website" target="_blank"><img src="https://opencollective.com/debug/sponsor/0/avatar.svg"></a>
<a href="https://opencollective.com/debug/sponsor/1/website" target="_blank"><img src="https://opencollective.com/debug/sponsor/1/avatar.svg"></a>
<a href="https://opencollective.com/debug/sponsor/2/website" target="_blank"><img src="https://opencollective.com/debug/sponsor/2/avatar.svg"></a>
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## License
(The MIT License)
Copyright (c) 2014-2016 TJ Holowaychuk &lt;tj@vision-media.ca&gt;
Permission is hereby granted, free of charge, to any person obtaining
a copy of this software and associated documentation files (the
'Software'), to deal in the Software without restriction, including
without limitation the rights to use, copy, modify, merge, publish,
distribute, sublicense, and/or sell copies of the Software, and to
permit persons to whom the Software is furnished to do so, subject to
the following conditions:
The above copyright notice and this permission notice shall be
included in all copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED 'AS IS', WITHOUT WARRANTY OF ANY KIND,
EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

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{
"name": "debug",
"repo": "visionmedia/debug",
"description": "small debugging utility",
"version": "2.6.9",
"keywords": [
"debug",
"log",
"debugger"
],
"main": "src/browser.js",
"scripts": [
"src/browser.js",
"src/debug.js"
],
"dependencies": {
"rauchg/ms.js": "0.7.1"
}
}

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// Karma configuration
// Generated on Fri Dec 16 2016 13:09:51 GMT+0000 (UTC)
module.exports = function(config) {
config.set({
// base path that will be used to resolve all patterns (eg. files, exclude)
basePath: '',
// frameworks to use
// available frameworks: https://npmjs.org/browse/keyword/karma-adapter
frameworks: ['mocha', 'chai', 'sinon'],
// list of files / patterns to load in the browser
files: [
'dist/debug.js',
'test/*spec.js'
],
// list of files to exclude
exclude: [
'src/node.js'
],
// preprocess matching files before serving them to the browser
// available preprocessors: https://npmjs.org/browse/keyword/karma-preprocessor
preprocessors: {
},
// test results reporter to use
// possible values: 'dots', 'progress'
// available reporters: https://npmjs.org/browse/keyword/karma-reporter
reporters: ['progress'],
// web server port
port: 9876,
// enable / disable colors in the output (reporters and logs)
colors: true,
// level of logging
// possible values: config.LOG_DISABLE || config.LOG_ERROR || config.LOG_WARN || config.LOG_INFO || config.LOG_DEBUG
logLevel: config.LOG_INFO,
// enable / disable watching file and executing tests whenever any file changes
autoWatch: true,
// start these browsers
// available browser launchers: https://npmjs.org/browse/keyword/karma-launcher
browsers: ['PhantomJS'],
// Continuous Integration mode
// if true, Karma captures browsers, runs the tests and exits
singleRun: false,
// Concurrency level
// how many browser should be started simultaneous
concurrency: Infinity
})
}

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module.exports = require('./src/node');

91
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{
"_args": [
[
"debug@2.6.9",
"/Users/tatiana/selfdefined"
]
],
"_from": "debug@2.6.9",
"_id": "debug@2.6.9",
"_inBundle": false,
"_integrity": "sha512-bC7ElrdJaJnPbAP+1EotYvqZsb3ecl5wi6Bfi6BJTUcNowp6cvspg0jXznRTKDjm/E7AdgFBVeAPVMNcKGsHMA==",
"_location": "/snapdragon/debug",
"_phantomChildren": {},
"_requested": {
"type": "version",
"registry": true,
"raw": "debug@2.6.9",
"name": "debug",
"escapedName": "debug",
"rawSpec": "2.6.9",
"saveSpec": null,
"fetchSpec": "2.6.9"
},
"_requiredBy": [
"/snapdragon"
],
"_resolved": "https://registry.npmjs.org/debug/-/debug-2.6.9.tgz",
"_spec": "2.6.9",
"_where": "/Users/tatiana/selfdefined",
"author": {
"name": "TJ Holowaychuk",
"email": "tj@vision-media.ca"
},
"browser": "./src/browser.js",
"bugs": {
"url": "https://github.com/visionmedia/debug/issues"
},
"component": {
"scripts": {
"debug/index.js": "browser.js",
"debug/debug.js": "debug.js"
}
},
"contributors": [
{
"name": "Nathan Rajlich",
"email": "nathan@tootallnate.net",
"url": "http://n8.io"
},
{
"name": "Andrew Rhyne",
"email": "rhyneandrew@gmail.com"
}
],
"dependencies": {
"ms": "2.0.0"
},
"description": "small debugging utility",
"devDependencies": {
"browserify": "9.0.3",
"chai": "^3.5.0",
"concurrently": "^3.1.0",
"coveralls": "^2.11.15",
"eslint": "^3.12.1",
"istanbul": "^0.4.5",
"karma": "^1.3.0",
"karma-chai": "^0.1.0",
"karma-mocha": "^1.3.0",
"karma-phantomjs-launcher": "^1.0.2",
"karma-sinon": "^1.0.5",
"mocha": "^3.2.0",
"mocha-lcov-reporter": "^1.2.0",
"rimraf": "^2.5.4",
"sinon": "^1.17.6",
"sinon-chai": "^2.8.0"
},
"homepage": "https://github.com/visionmedia/debug#readme",
"keywords": [
"debug",
"log",
"debugger"
],
"license": "MIT",
"main": "./src/index.js",
"name": "debug",
"repository": {
"type": "git",
"url": "git://github.com/visionmedia/debug.git"
},
"version": "2.6.9"
}

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/**
* This is the web browser implementation of `debug()`.
*
* Expose `debug()` as the module.
*/
exports = module.exports = require('./debug');
exports.log = log;
exports.formatArgs = formatArgs;
exports.save = save;
exports.load = load;
exports.useColors = useColors;
exports.storage = 'undefined' != typeof chrome
&& 'undefined' != typeof chrome.storage
? chrome.storage.local
: localstorage();
/**
* Colors.
*/
exports.colors = [
'lightseagreen',
'forestgreen',
'goldenrod',
'dodgerblue',
'darkorchid',
'crimson'
];
/**
* Currently only WebKit-based Web Inspectors, Firefox >= v31,
* and the Firebug extension (any Firefox version) are known
* to support "%c" CSS customizations.
*
* TODO: add a `localStorage` variable to explicitly enable/disable colors
*/
function useColors() {
// NB: In an Electron preload script, document will be defined but not fully
// initialized. Since we know we're in Chrome, we'll just detect this case
// explicitly
if (typeof window !== 'undefined' && window.process && window.process.type === 'renderer') {
return true;
}
// is webkit? http://stackoverflow.com/a/16459606/376773
// document is undefined in react-native: https://github.com/facebook/react-native/pull/1632
return (typeof document !== 'undefined' && document.documentElement && document.documentElement.style && document.documentElement.style.WebkitAppearance) ||
// is firebug? http://stackoverflow.com/a/398120/376773
(typeof window !== 'undefined' && window.console && (window.console.firebug || (window.console.exception && window.console.table))) ||
// is firefox >= v31?
// https://developer.mozilla.org/en-US/docs/Tools/Web_Console#Styling_messages
(typeof navigator !== 'undefined' && navigator.userAgent && navigator.userAgent.toLowerCase().match(/firefox\/(\d+)/) && parseInt(RegExp.$1, 10) >= 31) ||
// double check webkit in userAgent just in case we are in a worker
(typeof navigator !== 'undefined' && navigator.userAgent && navigator.userAgent.toLowerCase().match(/applewebkit\/(\d+)/));
}
/**
* Map %j to `JSON.stringify()`, since no Web Inspectors do that by default.
*/
exports.formatters.j = function(v) {
try {
return JSON.stringify(v);
} catch (err) {
return '[UnexpectedJSONParseError]: ' + err.message;
}
};
/**
* Colorize log arguments if enabled.
*
* @api public
*/
function formatArgs(args) {
var useColors = this.useColors;
args[0] = (useColors ? '%c' : '')
+ this.namespace
+ (useColors ? ' %c' : ' ')
+ args[0]
+ (useColors ? '%c ' : ' ')
+ '+' + exports.humanize(this.diff);
if (!useColors) return;
var c = 'color: ' + this.color;
args.splice(1, 0, c, 'color: inherit')
// the final "%c" is somewhat tricky, because there could be other
// arguments passed either before or after the %c, so we need to
// figure out the correct index to insert the CSS into
var index = 0;
var lastC = 0;
args[0].replace(/%[a-zA-Z%]/g, function(match) {
if ('%%' === match) return;
index++;
if ('%c' === match) {
// we only are interested in the *last* %c
// (the user may have provided their own)
lastC = index;
}
});
args.splice(lastC, 0, c);
}
/**
* Invokes `console.log()` when available.
* No-op when `console.log` is not a "function".
*
* @api public
*/
function log() {
// this hackery is required for IE8/9, where
// the `console.log` function doesn't have 'apply'
return 'object' === typeof console
&& console.log
&& Function.prototype.apply.call(console.log, console, arguments);
}
/**
* Save `namespaces`.
*
* @param {String} namespaces
* @api private
*/
function save(namespaces) {
try {
if (null == namespaces) {
exports.storage.removeItem('debug');
} else {
exports.storage.debug = namespaces;
}
} catch(e) {}
}
/**
* Load `namespaces`.
*
* @return {String} returns the previously persisted debug modes
* @api private
*/
function load() {
var r;
try {
r = exports.storage.debug;
} catch(e) {}
// If debug isn't set in LS, and we're in Electron, try to load $DEBUG
if (!r && typeof process !== 'undefined' && 'env' in process) {
r = process.env.DEBUG;
}
return r;
}
/**
* Enable namespaces listed in `localStorage.debug` initially.
*/
exports.enable(load());
/**
* Localstorage attempts to return the localstorage.
*
* This is necessary because safari throws
* when a user disables cookies/localstorage
* and you attempt to access it.
*
* @return {LocalStorage}
* @api private
*/
function localstorage() {
try {
return window.localStorage;
} catch (e) {}
}

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/**
* This is the common logic for both the Node.js and web browser
* implementations of `debug()`.
*
* Expose `debug()` as the module.
*/
exports = module.exports = createDebug.debug = createDebug['default'] = createDebug;
exports.coerce = coerce;
exports.disable = disable;
exports.enable = enable;
exports.enabled = enabled;
exports.humanize = require('ms');
/**
* The currently active debug mode names, and names to skip.
*/
exports.names = [];
exports.skips = [];
/**
* Map of special "%n" handling functions, for the debug "format" argument.
*
* Valid key names are a single, lower or upper-case letter, i.e. "n" and "N".
*/
exports.formatters = {};
/**
* Previous log timestamp.
*/
var prevTime;
/**
* Select a color.
* @param {String} namespace
* @return {Number}
* @api private
*/
function selectColor(namespace) {
var hash = 0, i;
for (i in namespace) {
hash = ((hash << 5) - hash) + namespace.charCodeAt(i);
hash |= 0; // Convert to 32bit integer
}
return exports.colors[Math.abs(hash) % exports.colors.length];
}
/**
* Create a debugger with the given `namespace`.
*
* @param {String} namespace
* @return {Function}
* @api public
*/
function createDebug(namespace) {
function debug() {
// disabled?
if (!debug.enabled) return;
var self = debug;
// set `diff` timestamp
var curr = +new Date();
var ms = curr - (prevTime || curr);
self.diff = ms;
self.prev = prevTime;
self.curr = curr;
prevTime = curr;
// turn the `arguments` into a proper Array
var args = new Array(arguments.length);
for (var i = 0; i < args.length; i++) {
args[i] = arguments[i];
}
args[0] = exports.coerce(args[0]);
if ('string' !== typeof args[0]) {
// anything else let's inspect with %O
args.unshift('%O');
}
// apply any `formatters` transformations
var index = 0;
args[0] = args[0].replace(/%([a-zA-Z%])/g, function(match, format) {
// if we encounter an escaped % then don't increase the array index
if (match === '%%') return match;
index++;
var formatter = exports.formatters[format];
if ('function' === typeof formatter) {
var val = args[index];
match = formatter.call(self, val);
// now we need to remove `args[index]` since it's inlined in the `format`
args.splice(index, 1);
index--;
}
return match;
});
// apply env-specific formatting (colors, etc.)
exports.formatArgs.call(self, args);
var logFn = debug.log || exports.log || console.log.bind(console);
logFn.apply(self, args);
}
debug.namespace = namespace;
debug.enabled = exports.enabled(namespace);
debug.useColors = exports.useColors();
debug.color = selectColor(namespace);
// env-specific initialization logic for debug instances
if ('function' === typeof exports.init) {
exports.init(debug);
}
return debug;
}
/**
* Enables a debug mode by namespaces. This can include modes
* separated by a colon and wildcards.
*
* @param {String} namespaces
* @api public
*/
function enable(namespaces) {
exports.save(namespaces);
exports.names = [];
exports.skips = [];
var split = (typeof namespaces === 'string' ? namespaces : '').split(/[\s,]+/);
var len = split.length;
for (var i = 0; i < len; i++) {
if (!split[i]) continue; // ignore empty strings
namespaces = split[i].replace(/\*/g, '.*?');
if (namespaces[0] === '-') {
exports.skips.push(new RegExp('^' + namespaces.substr(1) + '$'));
} else {
exports.names.push(new RegExp('^' + namespaces + '$'));
}
}
}
/**
* Disable debug output.
*
* @api public
*/
function disable() {
exports.enable('');
}
/**
* Returns true if the given mode name is enabled, false otherwise.
*
* @param {String} name
* @return {Boolean}
* @api public
*/
function enabled(name) {
var i, len;
for (i = 0, len = exports.skips.length; i < len; i++) {
if (exports.skips[i].test(name)) {
return false;
}
}
for (i = 0, len = exports.names.length; i < len; i++) {
if (exports.names[i].test(name)) {
return true;
}
}
return false;
}
/**
* Coerce `val`.
*
* @param {Mixed} val
* @return {Mixed}
* @api private
*/
function coerce(val) {
if (val instanceof Error) return val.stack || val.message;
return val;
}

10
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/**
* Detect Electron renderer process, which is node, but we should
* treat as a browser.
*/
if (typeof process !== 'undefined' && process.type === 'renderer') {
module.exports = require('./browser.js');
} else {
module.exports = require('./node.js');
}

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module.exports = inspectorLog;
// black hole
const nullStream = new (require('stream').Writable)();
nullStream._write = () => {};
/**
* Outputs a `console.log()` to the Node.js Inspector console *only*.
*/
function inspectorLog() {
const stdout = console._stdout;
console._stdout = nullStream;
console.log.apply(console, arguments);
console._stdout = stdout;
}

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/**
* Module dependencies.
*/
var tty = require('tty');
var util = require('util');
/**
* This is the Node.js implementation of `debug()`.
*
* Expose `debug()` as the module.
*/
exports = module.exports = require('./debug');
exports.init = init;
exports.log = log;
exports.formatArgs = formatArgs;
exports.save = save;
exports.load = load;
exports.useColors = useColors;
/**
* Colors.
*/
exports.colors = [6, 2, 3, 4, 5, 1];
/**
* Build up the default `inspectOpts` object from the environment variables.
*
* $ DEBUG_COLORS=no DEBUG_DEPTH=10 DEBUG_SHOW_HIDDEN=enabled node script.js
*/
exports.inspectOpts = Object.keys(process.env).filter(function (key) {
return /^debug_/i.test(key);
}).reduce(function (obj, key) {
// camel-case
var prop = key
.substring(6)
.toLowerCase()
.replace(/_([a-z])/g, function (_, k) { return k.toUpperCase() });
// coerce string value into JS value
var val = process.env[key];
if (/^(yes|on|true|enabled)$/i.test(val)) val = true;
else if (/^(no|off|false|disabled)$/i.test(val)) val = false;
else if (val === 'null') val = null;
else val = Number(val);
obj[prop] = val;
return obj;
}, {});
/**
* The file descriptor to write the `debug()` calls to.
* Set the `DEBUG_FD` env variable to override with another value. i.e.:
*
* $ DEBUG_FD=3 node script.js 3>debug.log
*/
var fd = parseInt(process.env.DEBUG_FD, 10) || 2;
if (1 !== fd && 2 !== fd) {
util.deprecate(function(){}, 'except for stderr(2) and stdout(1), any other usage of DEBUG_FD is deprecated. Override debug.log if you want to use a different log function (https://git.io/debug_fd)')()
}
var stream = 1 === fd ? process.stdout :
2 === fd ? process.stderr :
createWritableStdioStream(fd);
/**
* Is stdout a TTY? Colored output is enabled when `true`.
*/
function useColors() {
return 'colors' in exports.inspectOpts
? Boolean(exports.inspectOpts.colors)
: tty.isatty(fd);
}
/**
* Map %o to `util.inspect()`, all on a single line.
*/
exports.formatters.o = function(v) {
this.inspectOpts.colors = this.useColors;
return util.inspect(v, this.inspectOpts)
.split('\n').map(function(str) {
return str.trim()
}).join(' ');
};
/**
* Map %o to `util.inspect()`, allowing multiple lines if needed.
*/
exports.formatters.O = function(v) {
this.inspectOpts.colors = this.useColors;
return util.inspect(v, this.inspectOpts);
};
/**
* Adds ANSI color escape codes if enabled.
*
* @api public
*/
function formatArgs(args) {
var name = this.namespace;
var useColors = this.useColors;
if (useColors) {
var c = this.color;
var prefix = ' \u001b[3' + c + ';1m' + name + ' ' + '\u001b[0m';
args[0] = prefix + args[0].split('\n').join('\n' + prefix);
args.push('\u001b[3' + c + 'm+' + exports.humanize(this.diff) + '\u001b[0m');
} else {
args[0] = new Date().toUTCString()
+ ' ' + name + ' ' + args[0];
}
}
/**
* Invokes `util.format()` with the specified arguments and writes to `stream`.
*/
function log() {
return stream.write(util.format.apply(util, arguments) + '\n');
}
/**
* Save `namespaces`.
*
* @param {String} namespaces
* @api private
*/
function save(namespaces) {
if (null == namespaces) {
// If you set a process.env field to null or undefined, it gets cast to the
// string 'null' or 'undefined'. Just delete instead.
delete process.env.DEBUG;
} else {
process.env.DEBUG = namespaces;
}
}
/**
* Load `namespaces`.
*
* @return {String} returns the previously persisted debug modes
* @api private
*/
function load() {
return process.env.DEBUG;
}
/**
* Copied from `node/src/node.js`.
*
* XXX: It's lame that node doesn't expose this API out-of-the-box. It also
* relies on the undocumented `tty_wrap.guessHandleType()` which is also lame.
*/
function createWritableStdioStream (fd) {
var stream;
var tty_wrap = process.binding('tty_wrap');
// Note stream._type is used for test-module-load-list.js
switch (tty_wrap.guessHandleType(fd)) {
case 'TTY':
stream = new tty.WriteStream(fd);
stream._type = 'tty';
// Hack to have stream not keep the event loop alive.
// See https://github.com/joyent/node/issues/1726
if (stream._handle && stream._handle.unref) {
stream._handle.unref();
}
break;
case 'FILE':
var fs = require('fs');
stream = new fs.SyncWriteStream(fd, { autoClose: false });
stream._type = 'fs';
break;
case 'PIPE':
case 'TCP':
var net = require('net');
stream = new net.Socket({
fd: fd,
readable: false,
writable: true
});
// FIXME Should probably have an option in net.Socket to create a
// stream from an existing fd which is writable only. But for now
// we'll just add this hack and set the `readable` member to false.
// Test: ./node test/fixtures/echo.js < /etc/passwd
stream.readable = false;
stream.read = null;
stream._type = 'pipe';
// FIXME Hack to have stream not keep the event loop alive.
// See https://github.com/joyent/node/issues/1726
if (stream._handle && stream._handle.unref) {
stream._handle.unref();
}
break;
default:
// Probably an error on in uv_guess_handle()
throw new Error('Implement me. Unknown stream file type!');
}
// For supporting legacy API we put the FD here.
stream.fd = fd;
stream._isStdio = true;
return stream;
}
/**
* Init logic for `debug` instances.
*
* Create a new `inspectOpts` object in case `useColors` is set
* differently for a particular `debug` instance.
*/
function init (debug) {
debug.inspectOpts = {};
var keys = Object.keys(exports.inspectOpts);
for (var i = 0; i < keys.length; i++) {
debug.inspectOpts[keys[i]] = exports.inspectOpts[keys[i]];
}
}
/**
* Enable namespaces listed in `process.env.DEBUG` initially.
*/
exports.enable(load());

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The MIT License (MIT)
Copyright (c) 2015, Jon Schlinkert.
Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in
all copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
THE SOFTWARE.

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# define-property [![NPM version](https://badge.fury.io/js/define-property.svg)](http://badge.fury.io/js/define-property)
> Define a non-enumerable property on an object.
## Install
Install with [npm](https://www.npmjs.com/)
```sh
$ npm i define-property --save
```
## Usage
**Params**
* `obj`: The object on which to define the property.
* `prop`: The name of the property to be defined or modified.
* `descriptor`: The descriptor for the property being defined or modified.
```js
var define = require('define-property');
var obj = {};
define(obj, 'foo', function(val) {
return val.toUpperCase();
});
console.log(obj);
//=> {}
console.log(obj.foo('bar'));
//=> 'BAR'
```
**get/set**
```js
define(obj, 'foo', {
get: function() {},
set: function() {}
});
```
## Related projects
* [delegate-object](https://www.npmjs.com/package/delegate-object): Copy properties from an object to another object, where properties with function values will be… [more](https://www.npmjs.com/package/delegate-object) | [homepage](https://github.com/doowb/delegate-object)
* [forward-object](https://www.npmjs.com/package/forward-object): Copy properties from an object to another object, where properties with function values will be… [more](https://www.npmjs.com/package/forward-object) | [homepage](https://github.com/doowb/forward-object)
* [mixin-deep](https://www.npmjs.com/package/mixin-deep): Deeply mix the properties of objects into the first object. Like merge-deep, but doesn't clone. | [homepage](https://github.com/jonschlinkert/mixin-deep)
* [mixin-object](https://www.npmjs.com/package/mixin-object): Mixin the own and inherited properties of other objects onto the first object. Pass an… [more](https://www.npmjs.com/package/mixin-object) | [homepage](https://github.com/jonschlinkert/mixin-object)
## Running tests
Install dev dependencies:
```sh
$ npm i -d && npm test
```
## Contributing
Pull requests and stars are always welcome. For bugs and feature requests, [please create an issue](https://github.com/jonschlinkert/define-property/issues/new).
## Author
**Jon Schlinkert**
+ [github/jonschlinkert](https://github.com/jonschlinkert)
+ [twitter/jonschlinkert](http://twitter.com/jonschlinkert)
## License
Copyright © 2015 Jon Schlinkert
Released under the MIT license.
***
_This file was generated by [verb-cli](https://github.com/assemble/verb-cli) on August 31, 2015._

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/*!
* define-property <https://github.com/jonschlinkert/define-property>
*
* Copyright (c) 2015, Jon Schlinkert.
* Licensed under the MIT License.
*/
'use strict';
var isDescriptor = require('is-descriptor');
module.exports = function defineProperty(obj, prop, val) {
if (typeof obj !== 'object' && typeof obj !== 'function') {
throw new TypeError('expected an object or function.');
}
if (typeof prop !== 'string') {
throw new TypeError('expected `prop` to be a string.');
}
if (isDescriptor(val) && ('set' in val || 'get' in val)) {
return Object.defineProperty(obj, prop, val);
}
return Object.defineProperty(obj, prop, {
configurable: true,
enumerable: false,
writable: true,
value: val
});
};

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{
"_args": [
[
"define-property@0.2.5",
"/Users/tatiana/selfdefined"
]
],
"_from": "define-property@0.2.5",
"_id": "define-property@0.2.5",
"_inBundle": false,
"_integrity": "sha1-w1se+RjsPJkPmlvFe+BKrOxcgRY=",
"_location": "/snapdragon/define-property",
"_phantomChildren": {},
"_requested": {
"type": "version",
"registry": true,
"raw": "define-property@0.2.5",
"name": "define-property",
"escapedName": "define-property",
"rawSpec": "0.2.5",
"saveSpec": null,
"fetchSpec": "0.2.5"
},
"_requiredBy": [
"/snapdragon"
],
"_resolved": "https://registry.npmjs.org/define-property/-/define-property-0.2.5.tgz",
"_spec": "0.2.5",
"_where": "/Users/tatiana/selfdefined",
"author": {
"name": "Jon Schlinkert",
"url": "https://github.com/jonschlinkert"
},
"bugs": {
"url": "https://github.com/jonschlinkert/define-property/issues"
},
"dependencies": {
"is-descriptor": "^0.1.0"
},
"description": "Define a non-enumerable property on an object.",
"devDependencies": {
"mocha": "*",
"should": "^7.0.4"
},
"engines": {
"node": ">=0.10.0"
},
"files": [
"index.js"
],
"homepage": "https://github.com/jonschlinkert/define-property",
"keywords": [
"define",
"define-property",
"enumerable",
"key",
"non",
"non-enumerable",
"object",
"prop",
"property",
"value"
],
"license": "MIT",
"main": "index.js",
"name": "define-property",
"repository": {
"type": "git",
"url": "git+https://github.com/jonschlinkert/define-property.git"
},
"scripts": {
"test": "mocha"
},
"verb": {
"related": {
"list": [
"mixin-deep",
"mixin-object",
"delegate-object",
"forward-object"
]
}
},
"version": "0.2.5"
}

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@ -0,0 +1,21 @@
The MIT License (MIT)
Copyright (c) 2014-2015, Jon Schlinkert.
Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in
all copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
THE SOFTWARE.

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# extend-shallow [![NPM version](https://badge.fury.io/js/extend-shallow.svg)](http://badge.fury.io/js/extend-shallow) [![Build Status](https://travis-ci.org/jonschlinkert/extend-shallow.svg)](https://travis-ci.org/jonschlinkert/extend-shallow)
> Extend an object with the properties of additional objects. node.js/javascript util.
## Install
Install with [npm](https://www.npmjs.com/)
```sh
$ npm i extend-shallow --save
```
## Usage
```js
var extend = require('extend-shallow');
extend({a: 'b'}, {c: 'd'})
//=> {a: 'b', c: 'd'}
```
Pass an empty object to shallow clone:
```js
var obj = {};
extend(obj, {a: 'b'}, {c: 'd'})
//=> {a: 'b', c: 'd'}
```
## Related
* [extend-shallow](https://github.com/jonschlinkert/extend-shallow): Extend an object with the properties of additional objects. node.js/javascript util.
* [for-own](https://github.com/jonschlinkert/for-own): Iterate over the own enumerable properties of an object, and return an object with properties… [more](https://github.com/jonschlinkert/for-own)
* [for-in](https://github.com/jonschlinkert/for-in): Iterate over the own and inherited enumerable properties of an objecte, and return an object… [more](https://github.com/jonschlinkert/for-in)
* [is-plain-object](https://github.com/jonschlinkert/is-plain-object): Returns true if an object was created by the `Object` constructor.
* [isobject](https://github.com/jonschlinkert/isobject): Returns true if the value is an object and not an array or null.
* [kind-of](https://github.com/jonschlinkert/kind-of): Get the native type of a value.
## Running tests
Install dev dependencies:
```sh
$ npm i -d && npm test
```
## Author
**Jon Schlinkert**
+ [github/jonschlinkert](https://github.com/jonschlinkert)
+ [twitter/jonschlinkert](http://twitter.com/jonschlinkert)
## License
Copyright © 2015 Jon Schlinkert
Released under the MIT license.
***
_This file was generated by [verb-cli](https://github.com/assemble/verb-cli) on June 29, 2015._

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'use strict';
var isObject = require('is-extendable');
module.exports = function extend(o/*, objects*/) {
if (!isObject(o)) { o = {}; }
var len = arguments.length;
for (var i = 1; i < len; i++) {
var obj = arguments[i];
if (isObject(obj)) {
assign(o, obj);
}
}
return o;
};
function assign(a, b) {
for (var key in b) {
if (hasOwn(b, key)) {
a[key] = b[key];
}
}
}
/**
* Returns true if the given `key` is an own property of `obj`.
*/
function hasOwn(obj, key) {
return Object.prototype.hasOwnProperty.call(obj, key);
}

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{
"_args": [
[
"extend-shallow@2.0.1",
"/Users/tatiana/selfdefined"
]
],
"_from": "extend-shallow@2.0.1",
"_id": "extend-shallow@2.0.1",
"_inBundle": false,
"_integrity": "sha1-Ua99YUrZqfYQ6huvu5idaxxWiQ8=",
"_location": "/snapdragon/extend-shallow",
"_phantomChildren": {},
"_requested": {
"type": "version",
"registry": true,
"raw": "extend-shallow@2.0.1",
"name": "extend-shallow",
"escapedName": "extend-shallow",
"rawSpec": "2.0.1",
"saveSpec": null,
"fetchSpec": "2.0.1"
},
"_requiredBy": [
"/snapdragon"
],
"_resolved": "https://registry.npmjs.org/extend-shallow/-/extend-shallow-2.0.1.tgz",
"_spec": "2.0.1",
"_where": "/Users/tatiana/selfdefined",
"author": {
"name": "Jon Schlinkert",
"url": "https://github.com/jonschlinkert"
},
"bugs": {
"url": "https://github.com/jonschlinkert/extend-shallow/issues"
},
"dependencies": {
"is-extendable": "^0.1.0"
},
"description": "Extend an object with the properties of additional objects. node.js/javascript util.",
"devDependencies": {
"array-slice": "^0.2.3",
"benchmarked": "^0.1.4",
"chalk": "^1.0.0",
"for-own": "^0.1.3",
"glob": "^5.0.12",
"is-plain-object": "^2.0.1",
"kind-of": "^2.0.0",
"minimist": "^1.1.1",
"mocha": "^2.2.5",
"should": "^7.0.1"
},
"engines": {
"node": ">=0.10.0"
},
"files": [
"index.js"
],
"homepage": "https://github.com/jonschlinkert/extend-shallow",
"keywords": [
"assign",
"extend",
"javascript",
"js",
"keys",
"merge",
"obj",
"object",
"prop",
"properties",
"property",
"props",
"shallow",
"util",
"utility",
"utils",
"value"
],
"license": "MIT",
"main": "index.js",
"name": "extend-shallow",
"repository": {
"type": "git",
"url": "git+https://github.com/jonschlinkert/extend-shallow.git"
},
"scripts": {
"test": "mocha"
},
"version": "2.0.1"
}

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/**
* Helpers.
*/
var s = 1000;
var m = s * 60;
var h = m * 60;
var d = h * 24;
var y = d * 365.25;
/**
* Parse or format the given `val`.
*
* Options:
*
* - `long` verbose formatting [false]
*
* @param {String|Number} val
* @param {Object} [options]
* @throws {Error} throw an error if val is not a non-empty string or a number
* @return {String|Number}
* @api public
*/
module.exports = function(val, options) {
options = options || {};
var type = typeof val;
if (type === 'string' && val.length > 0) {
return parse(val);
} else if (type === 'number' && isNaN(val) === false) {
return options.long ? fmtLong(val) : fmtShort(val);
}
throw new Error(
'val is not a non-empty string or a valid number. val=' +
JSON.stringify(val)
);
};
/**
* Parse the given `str` and return milliseconds.
*
* @param {String} str
* @return {Number}
* @api private
*/
function parse(str) {
str = String(str);
if (str.length > 100) {
return;
}
var match = /^((?:\d+)?\.?\d+) *(milliseconds?|msecs?|ms|seconds?|secs?|s|minutes?|mins?|m|hours?|hrs?|h|days?|d|years?|yrs?|y)?$/i.exec(
str
);
if (!match) {
return;
}
var n = parseFloat(match[1]);
var type = (match[2] || 'ms').toLowerCase();
switch (type) {
case 'years':
case 'year':
case 'yrs':
case 'yr':
case 'y':
return n * y;
case 'days':
case 'day':
case 'd':
return n * d;
case 'hours':
case 'hour':
case 'hrs':
case 'hr':
case 'h':
return n * h;
case 'minutes':
case 'minute':
case 'mins':
case 'min':
case 'm':
return n * m;
case 'seconds':
case 'second':
case 'secs':
case 'sec':
case 's':
return n * s;
case 'milliseconds':
case 'millisecond':
case 'msecs':
case 'msec':
case 'ms':
return n;
default:
return undefined;
}
}
/**
* Short format for `ms`.
*
* @param {Number} ms
* @return {String}
* @api private
*/
function fmtShort(ms) {
if (ms >= d) {
return Math.round(ms / d) + 'd';
}
if (ms >= h) {
return Math.round(ms / h) + 'h';
}
if (ms >= m) {
return Math.round(ms / m) + 'm';
}
if (ms >= s) {
return Math.round(ms / s) + 's';
}
return ms + 'ms';
}
/**
* Long format for `ms`.
*
* @param {Number} ms
* @return {String}
* @api private
*/
function fmtLong(ms) {
return plural(ms, d, 'day') ||
plural(ms, h, 'hour') ||
plural(ms, m, 'minute') ||
plural(ms, s, 'second') ||
ms + ' ms';
}
/**
* Pluralization helper.
*/
function plural(ms, n, name) {
if (ms < n) {
return;
}
if (ms < n * 1.5) {
return Math.floor(ms / n) + ' ' + name;
}
return Math.ceil(ms / n) + ' ' + name + 's';
}

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The MIT License (MIT)
Copyright (c) 2016 Zeit, Inc.
Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in all
copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
SOFTWARE.

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{
"_args": [
[
"ms@2.0.0",
"/Users/tatiana/selfdefined"
]
],
"_from": "ms@2.0.0",
"_id": "ms@2.0.0",
"_inBundle": false,
"_integrity": "sha1-VgiurfwAvmwpAd9fmGF4jeDVl8g=",
"_location": "/snapdragon/ms",
"_phantomChildren": {},
"_requested": {
"type": "version",
"registry": true,
"raw": "ms@2.0.0",
"name": "ms",
"escapedName": "ms",
"rawSpec": "2.0.0",
"saveSpec": null,
"fetchSpec": "2.0.0"
},
"_requiredBy": [
"/snapdragon/debug"
],
"_resolved": "https://registry.npmjs.org/ms/-/ms-2.0.0.tgz",
"_spec": "2.0.0",
"_where": "/Users/tatiana/selfdefined",
"bugs": {
"url": "https://github.com/zeit/ms/issues"
},
"description": "Tiny milisecond conversion utility",
"devDependencies": {
"eslint": "3.19.0",
"expect.js": "0.3.1",
"husky": "0.13.3",
"lint-staged": "3.4.1",
"mocha": "3.4.1"
},
"eslintConfig": {
"extends": "eslint:recommended",
"env": {
"node": true,
"es6": true
}
},
"files": [
"index.js"
],
"homepage": "https://github.com/zeit/ms#readme",
"license": "MIT",
"lint-staged": {
"*.js": [
"npm run lint",
"prettier --single-quote --write",
"git add"
]
},
"main": "./index",
"name": "ms",
"repository": {
"type": "git",
"url": "git+https://github.com/zeit/ms.git"
},
"scripts": {
"lint": "eslint lib/* bin/*",
"precommit": "lint-staged",
"test": "mocha tests.js"
},
"version": "2.0.0"
}

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# ms
[![Build Status](https://travis-ci.org/zeit/ms.svg?branch=master)](https://travis-ci.org/zeit/ms)
[![Slack Channel](http://zeit-slackin.now.sh/badge.svg)](https://zeit.chat/)
Use this package to easily convert various time formats to milliseconds.
## Examples
```js
ms('2 days') // 172800000
ms('1d') // 86400000
ms('10h') // 36000000
ms('2.5 hrs') // 9000000
ms('2h') // 7200000
ms('1m') // 60000
ms('5s') // 5000
ms('1y') // 31557600000
ms('100') // 100
```
### Convert from milliseconds
```js
ms(60000) // "1m"
ms(2 * 60000) // "2m"
ms(ms('10 hours')) // "10h"
```
### Time format written-out
```js
ms(60000, { long: true }) // "1 minute"
ms(2 * 60000, { long: true }) // "2 minutes"
ms(ms('10 hours'), { long: true }) // "10 hours"
```
## Features
- Works both in [node](https://nodejs.org) and in the browser.
- If a number is supplied to `ms`, a string with a unit is returned.
- If a string that contains the number is supplied, it returns it as a number (e.g.: it returns `100` for `'100'`).
- If you pass a string with a number and a valid unit, the number of equivalent ms is returned.
## Caught a bug?
1. [Fork](https://help.github.com/articles/fork-a-repo/) this repository to your own GitHub account and then [clone](https://help.github.com/articles/cloning-a-repository/) it to your local device
2. Link the package to the global module directory: `npm link`
3. Within the module you want to test your local development instance of ms, just link it to the dependencies: `npm link ms`. Instead of the default one from npm, node will now use your clone of ms!
As always, you can run the tests using: `npm test`

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{
"_args": [
[
"snapdragon@0.8.2",
"/Users/tatiana/selfdefined"
]
],
"_from": "snapdragon@0.8.2",
"_id": "snapdragon@0.8.2",
"_inBundle": false,
"_integrity": "sha512-FtyOnWN/wCHTVXOMwvSv26d+ko5vWlIDD6zoUJ7LW8vh+ZBC8QdljveRP+crNrtBwioEUWy/4dMtbBjA4ioNlg==",
"_location": "/snapdragon",
"_phantomChildren": {
"is-descriptor": "0.1.6",
"is-extendable": "0.1.1"
},
"_requested": {
"type": "version",
"registry": true,
"raw": "snapdragon@0.8.2",
"name": "snapdragon",
"escapedName": "snapdragon",
"rawSpec": "0.8.2",
"saveSpec": null,
"fetchSpec": "0.8.2"
},
"_requiredBy": [
"/braces",
"/expand-brackets",
"/extglob",
"/micromatch",
"/nanomatch"
],
"_resolved": "https://registry.npmjs.org/snapdragon/-/snapdragon-0.8.2.tgz",
"_spec": "0.8.2",
"_where": "/Users/tatiana/selfdefined",
"author": {
"name": "Jon Schlinkert",
"url": "https://github.com/jonschlinkert"
},
"bugs": {
"url": "https://github.com/jonschlinkert/snapdragon/issues"
},
"contributors": [
{
"name": "Brian Woodward",
"url": "https://twitter.com/doowb"
},
{
"name": "Edward Betts",
"url": "http://edwardbetts.com"
},
{
"name": "Jon Schlinkert",
"url": "http://twitter.com/jonschlinkert"
}
],
"dependencies": {
"base": "^0.11.1",
"debug": "^2.2.0",
"define-property": "^0.2.5",
"extend-shallow": "^2.0.1",
"map-cache": "^0.2.2",
"source-map": "^0.5.6",
"source-map-resolve": "^0.5.0",
"use": "^3.1.0"
},
"description": "Fast, pluggable and easy-to-use parser-renderer factory.",
"devDependencies": {
"gulp": "^3.9.1",
"gulp-eslint": "^3.0.1",
"gulp-format-md": "^0.1.10",
"gulp-istanbul": "^1.1.1",
"gulp-mocha": "^3.0.1",
"gulp-unused": "^0.2.0",
"mocha": "^3.0.2"
},
"engines": {
"node": ">=0.10.0"
},
"files": [
"index.js",
"lib"
],
"homepage": "https://github.com/jonschlinkert/snapdragon",
"keywords": [
"lexer",
"snapdragon"
],
"license": "MIT",
"main": "index.js",
"name": "snapdragon",
"repository": {
"type": "git",
"url": "git+https://github.com/jonschlinkert/snapdragon.git"
},
"scripts": {
"test": "mocha"
},
"verb": {
"toc": false,
"layout": "default",
"tasks": [
"readme"
],
"plugins": [
"gulp-format-md"
],
"related": {
"description": "These libraries use snapdragon:",
"list": [
"braces",
"expand-brackets",
"extglob",
"micromatch"
]
},
"reflinks": [
"css",
"pug",
"verb",
"verb-generate-readme"
],
"lint": {
"reflinks": true
}
},
"version": "0.8.2"
}