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diff --git a/node_modules/snapdragon-util/README.md b/node_modules/snapdragon-util/README.md new file mode 100644 index 0000000..b654e02 --- /dev/null +++ b/node_modules/snapdragon-util/README.md @@ -0,0 +1,807 @@ +# snapdragon-util [](https://www.npmjs.com/package/snapdragon-util) [](https://npmjs.org/package/snapdragon-util) [](https://npmjs.org/package/snapdragon-util) [](https://travis-ci.org/jonschlinkert/snapdragon-util) + +> Utilities for the snapdragon parser/compiler. + +<details> +<summary><strong>Table of Contents</strong></summary> + +- [Install](#install) +- [Usage](#usage) +- [API](#api) +- [Release history](#release-history) + * [[3.0.0] - 2017-05-01](#300---2017-05-01) + * [[0.1.0]](#010) +- [About](#about) + +</details> + +## Install + +Install with [npm](https://www.npmjs.com/): + +```sh +$ npm install --save snapdragon-util +``` + +Install with [yarn](https://yarnpkg.com): + +```sh +$ yarn add snapdragon-util +``` + +## Usage + +```js +var util = require('snapdragon-util'); +``` + +## API + +### [.isNode](index.js#L21) + +Returns true if the given value is a node. + +**Params** + +* `node` **{Object}**: Instance of [snapdragon-node](https://github.com/jonschlinkert/snapdragon-node) +* `returns` **{Boolean}** + +**Example** + +```js +var Node = require('snapdragon-node'); +var node = new Node({type: 'foo'}); +console.log(utils.isNode(node)); //=> true +console.log(utils.isNode({})); //=> false +``` + +### [.noop](index.js#L37) + +Emit an empty string for the given `node`. + +**Params** + +* `node` **{Object}**: Instance of [snapdragon-node](https://github.com/jonschlinkert/snapdragon-node) +* `returns` **{undefined}** + +**Example** + +```js +// do nothing for beginning-of-string +snapdragon.compiler.set('bos', utils.noop); +``` + +### [.identity](index.js#L53) + +Appdend `node.val` to `compiler.output`, exactly as it was created by the parser. + +**Params** + +* `node` **{Object}**: Instance of [snapdragon-node](https://github.com/jonschlinkert/snapdragon-node) +* `returns` **{undefined}** + +**Example** + +```js +snapdragon.compiler.set('text', utils.identity); +``` + +### [.append](index.js#L76) + +Previously named `.emit`, this method appends the given `val` to `compiler.output` for the given node. Useful when you know what value should be appended advance, regardless of the actual value of `node.val`. + +**Params** + +* `node` **{Object}**: Instance of [snapdragon-node](https://github.com/jonschlinkert/snapdragon-node) +* `returns` **{Function}**: Returns a compiler middleware function. + +**Example** + +```js +snapdragon.compiler + .set('i', function(node) { + this.mapVisit(node); + }) + .set('i.open', utils.append('<i>')) + .set('i.close', utils.append('</i>')) +``` + +### [.toNoop](index.js#L99) + +Used in compiler middleware, this onverts an AST node into an empty `text` node and deletes `node.nodes` if it exists. The advantage of this method is that, as opposed to completely removing the node, indices will not need to be re-calculated in sibling nodes, and nothing is appended to the output. + +**Params** + +* `node` **{Object}**: Instance of [snapdragon-node](https://github.com/jonschlinkert/snapdragon-node) +* `nodes` **{Array}**: Optionally pass a new `nodes` value, to replace the existing `node.nodes` array. + +**Example** + +```js +utils.toNoop(node); +// convert `node.nodes` to the given value instead of deleting it +utils.toNoop(node, []); +``` + +### [.visit](index.js#L128) + +Visit `node` with the given `fn`. The built-in `.visit` method in snapdragon automatically calls registered compilers, this allows you to pass a visitor function. + +**Params** + +* `node` **{Object}**: Instance of [snapdragon-node](https://github.com/jonschlinkert/snapdragon-node) +* `fn` **{Function}** +* `returns` **{Object}**: returns the node after recursively visiting all child nodes. + +**Example** + +```js +snapdragon.compiler.set('i', function(node) { + utils.visit(node, function(childNode) { + // do stuff with "childNode" + return childNode; + }); +}); +``` + +### [.mapVisit](index.js#L155) + +Map [visit](#visit) the given `fn` over `node.nodes`. This is called by [visit](#visit), use this method if you do not want `fn` to be called on the first node. + +**Params** + +* `node` **{Object}**: Instance of [snapdragon-node](https://github.com/jonschlinkert/snapdragon-node) +* `options` **{Object}** +* `fn` **{Function}** +* `returns` **{Object}**: returns the node + +**Example** + +```js +snapdragon.compiler.set('i', function(node) { + utils.mapVisit(node, function(childNode) { + // do stuff with "childNode" + return childNode; + }); +}); +``` + +### [.addOpen](index.js#L194) + +Unshift an `*.open` node onto `node.nodes`. + +**Params** + +* `node` **{Object}**: Instance of [snapdragon-node](https://github.com/jonschlinkert/snapdragon-node) +* `Node` **{Function}**: (required) Node constructor function from [snapdragon-node](https://github.com/jonschlinkert/snapdragon-node). +* `filter` **{Function}**: Optionaly specify a filter function to exclude the node. +* `returns` **{Object}**: Returns the created opening node. + +**Example** + +```js +var Node = require('snapdragon-node'); +snapdragon.parser.set('brace', function(node) { + var match = this.match(/^{/); + if (match) { + var parent = new Node({type: 'brace'}); + utils.addOpen(parent, Node); + console.log(parent.nodes[0]): + // { type: 'brace.open', val: '' }; + + // push the parent "brace" node onto the stack + this.push(parent); + + // return the parent node, so it's also added to the AST + return brace; + } +}); +``` + +### [.addClose](index.js#L244) + +Push a `*.close` node onto `node.nodes`. + +**Params** + +* `node` **{Object}**: Instance of [snapdragon-node](https://github.com/jonschlinkert/snapdragon-node) +* `Node` **{Function}**: (required) Node constructor function from [snapdragon-node](https://github.com/jonschlinkert/snapdragon-node). +* `filter` **{Function}**: Optionaly specify a filter function to exclude the node. +* `returns` **{Object}**: Returns the created closing node. + +**Example** + +```js +var Node = require('snapdragon-node'); +snapdragon.parser.set('brace', function(node) { + var match = this.match(/^}/); + if (match) { + var parent = this.parent(); + if (parent.type !== 'brace') { + throw new Error('missing opening: ' + '}'); + } + + utils.addClose(parent, Node); + console.log(parent.nodes[parent.nodes.length - 1]): + // { type: 'brace.close', val: '' }; + + // no need to return a node, since the parent + // was already added to the AST + return; + } +}); +``` + +### [.wrapNodes](index.js#L274) + +Wraps the given `node` with `*.open` and `*.close` nodes. + +**Params** + +* `node` **{Object}**: Instance of [snapdragon-node](https://github.com/jonschlinkert/snapdragon-node) +* `Node` **{Function}**: (required) Node constructor function from [snapdragon-node](https://github.com/jonschlinkert/snapdragon-node). +* `filter` **{Function}**: Optionaly specify a filter function to exclude the node. +* `returns` **{Object}**: Returns the node + +### [.pushNode](index.js#L299) + +Push the given `node` onto `parent.nodes`, and set `parent` as `node.parent. + +**Params** + +* `parent` **{Object}** +* `node` **{Object}**: Instance of [snapdragon-node](https://github.com/jonschlinkert/snapdragon-node) +* `returns` **{Object}**: Returns the child node + +**Example** + +```js +var parent = new Node({type: 'foo'}); +var node = new Node({type: 'bar'}); +utils.pushNode(parent, node); +console.log(parent.nodes[0].type) // 'bar' +console.log(node.parent.type) // 'foo' +``` + +### [.unshiftNode](index.js#L325) + +Unshift `node` onto `parent.nodes`, and set `parent` as `node.parent. + +**Params** + +* `parent` **{Object}** +* `node` **{Object}**: Instance of [snapdragon-node](https://github.com/jonschlinkert/snapdragon-node) +* `returns` **{undefined}** + +**Example** + +```js +var parent = new Node({type: 'foo'}); +var node = new Node({type: 'bar'}); +utils.unshiftNode(parent, node); +console.log(parent.nodes[0].type) // 'bar' +console.log(node.parent.type) // 'foo' +``` + +### [.popNode](index.js#L354) + +Pop the last `node` off of `parent.nodes`. The advantage of using this method is that it checks for `node.nodes` and works with any version of `snapdragon-node`. + +**Params** + +* `parent` **{Object}** +* `node` **{Object}**: Instance of [snapdragon-node](https://github.com/jonschlinkert/snapdragon-node) +* `returns` **{Number|Undefined}**: Returns the length of `node.nodes` or undefined. + +**Example** + +```js +var parent = new Node({type: 'foo'}); +utils.pushNode(parent, new Node({type: 'foo'})); +utils.pushNode(parent, new Node({type: 'bar'})); +utils.pushNode(parent, new Node({type: 'baz'})); +console.log(parent.nodes.length); //=> 3 +utils.popNode(parent); +console.log(parent.nodes.length); //=> 2 +``` + +### [.shiftNode](index.js#L382) + +Shift the first `node` off of `parent.nodes`. The advantage of using this method is that it checks for `node.nodes` and works with any version of `snapdragon-node`. + +**Params** + +* `parent` **{Object}** +* `node` **{Object}**: Instance of [snapdragon-node](https://github.com/jonschlinkert/snapdragon-node) +* `returns` **{Number|Undefined}**: Returns the length of `node.nodes` or undefined. + +**Example** + +```js +var parent = new Node({type: 'foo'}); +utils.pushNode(parent, new Node({type: 'foo'})); +utils.pushNode(parent, new Node({type: 'bar'})); +utils.pushNode(parent, new Node({type: 'baz'})); +console.log(parent.nodes.length); //=> 3 +utils.shiftNode(parent); +console.log(parent.nodes.length); //=> 2 +``` + +### [.removeNode](index.js#L409) + +Remove the specified `node` from `parent.nodes`. + +**Params** + +* `parent` **{Object}** +* `node` **{Object}**: Instance of [snapdragon-node](https://github.com/jonschlinkert/snapdragon-node) +* `returns` **{Object|undefined}**: Returns the removed node, if successful, or undefined if it does not exist on `parent.nodes`. + +**Example** + +```js +var parent = new Node({type: 'abc'}); +var foo = new Node({type: 'foo'}); +utils.pushNode(parent, foo); +utils.pushNode(parent, new Node({type: 'bar'})); +utils.pushNode(parent, new Node({type: 'baz'})); +console.log(parent.nodes.length); //=> 3 +utils.removeNode(parent, foo); +console.log(parent.nodes.length); //=> 2 +``` + +### [.isType](index.js#L443) + +Returns true if `node.type` matches the given `type`. Throws a `TypeError` if `node` is not an instance of `Node`. + +**Params** + +* `node` **{Object}**: Instance of [snapdragon-node](https://github.com/jonschlinkert/snapdragon-node) +* `type` **{String}** +* `returns` **{Boolean}** + +**Example** + +```js +var Node = require('snapdragon-node'); +var node = new Node({type: 'foo'}); +console.log(utils.isType(node, 'foo')); // false +console.log(utils.isType(node, 'bar')); // true +``` + +### [.hasType](index.js#L486) + +Returns true if the given `node` has the given `type` in `node.nodes`. Throws a `TypeError` if `node` is not an instance of `Node`. + +**Params** + +* `node` **{Object}**: Instance of [snapdragon-node](https://github.com/jonschlinkert/snapdragon-node) +* `type` **{String}** +* `returns` **{Boolean}** + +**Example** + +```js +var Node = require('snapdragon-node'); +var node = new Node({ + type: 'foo', + nodes: [ + new Node({type: 'bar'}), + new Node({type: 'baz'}) + ] +}); +console.log(utils.hasType(node, 'xyz')); // false +console.log(utils.hasType(node, 'baz')); // true +``` + +### [.firstOfType](index.js#L519) + +Returns the first node from `node.nodes` of the given `type` + +**Params** + +* `nodes` **{Array}** +* `type` **{String}** +* `returns` **{Object|undefined}**: Returns the first matching node or undefined. + +**Example** + +```js +var node = new Node({ + type: 'foo', + nodes: [ + new Node({type: 'text', val: 'abc'}), + new Node({type: 'text', val: 'xyz'}) + ] +}); + +var textNode = utils.firstOfType(node.nodes, 'text'); +console.log(textNode.val); +//=> 'abc' +``` + +### [.findNode](index.js#L556) + +Returns the node at the specified index, or the first node of the given `type` from `node.nodes`. + +**Params** + +* `nodes` **{Array}** +* `type` **{String|Number}**: Node type or index. +* `returns` **{Object}**: Returns a node or undefined. + +**Example** + +```js +var node = new Node({ + type: 'foo', + nodes: [ + new Node({type: 'text', val: 'abc'}), + new Node({type: 'text', val: 'xyz'}) + ] +}); + +var nodeOne = utils.findNode(node.nodes, 'text'); +console.log(nodeOne.val); +//=> 'abc' + +var nodeTwo = utils.findNode(node.nodes, 1); +console.log(nodeTwo.val); +//=> 'xyz' +``` + +### [.isOpen](index.js#L584) + +Returns true if the given node is an "*.open" node. + +**Params** + +* `node` **{Object}**: Instance of [snapdragon-node](https://github.com/jonschlinkert/snapdragon-node) +* `returns` **{Boolean}** + +**Example** + +```js +var Node = require('snapdragon-node'); +var brace = new Node({type: 'brace'}); +var open = new Node({type: 'brace.open'}); +var close = new Node({type: 'brace.close'}); + +console.log(utils.isOpen(brace)); // false +console.log(utils.isOpen(open)); // true +console.log(utils.isOpen(close)); // false +``` + +### [.isClose](index.js#L607) + +Returns true if the given node is a "*.close" node. + +**Params** + +* `node` **{Object}**: Instance of [snapdragon-node](https://github.com/jonschlinkert/snapdragon-node) +* `returns` **{Boolean}** + +**Example** + +```js +var Node = require('snapdragon-node'); +var brace = new Node({type: 'brace'}); +var open = new Node({type: 'brace.open'}); +var close = new Node({type: 'brace.close'}); + +console.log(utils.isClose(brace)); // false +console.log(utils.isClose(open)); // false +console.log(utils.isClose(close)); // true +``` + +### [.hasOpen](index.js#L633) + +Returns true if `node.nodes` **has** an `.open` node + +**Params** + +* `node` **{Object}**: Instance of [snapdragon-node](https://github.com/jonschlinkert/snapdragon-node) +* `returns` **{Boolean}** + +**Example** + +```js +var Node = require('snapdragon-node'); +var brace = new Node({ + type: 'brace', + nodes: [] +}); + +var open = new Node({type: 'brace.open'}); +console.log(utils.hasOpen(brace)); // false + +brace.pushNode(open); +console.log(utils.hasOpen(brace)); // true +``` + +### [.hasClose](index.js#L663) + +Returns true if `node.nodes` **has** a `.close` node + +**Params** + +* `node` **{Object}**: Instance of [snapdragon-node](https://github.com/jonschlinkert/snapdragon-node) +* `returns` **{Boolean}** + +**Example** + +```js +var Node = require('snapdragon-node'); +var brace = new Node({ + type: 'brace', + nodes: [] +}); + +var close = new Node({type: 'brace.close'}); +console.log(utils.hasClose(brace)); // false + +brace.pushNode(close); +console.log(utils.hasClose(brace)); // true +``` + +### [.hasOpenAndClose](index.js#L697) + +Returns true if `node.nodes` has both `.open` and `.close` nodes + +**Params** + +* `node` **{Object}**: Instance of [snapdragon-node](https://github.com/jonschlinkert/snapdragon-node) +* `returns` **{Boolean}** + +**Example** + +```js +var Node = require('snapdragon-node'); +var brace = new Node({ + type: 'brace', + nodes: [] +}); + +var open = new Node({type: 'brace.open'}); +var close = new Node({type: 'brace.close'}); +console.log(utils.hasOpen(brace)); // false +console.log(utils.hasClose(brace)); // false + +brace.pushNode(open); +brace.pushNode(close); +console.log(utils.hasOpen(brace)); // true +console.log(utils.hasClose(brace)); // true +``` + +### [.addType](index.js#L719) + +Push the given `node` onto the `state.inside` array for the given type. This array is used as a specialized "stack" for only the given `node.type`. + +**Params** + +* `state` **{Object}**: The `compiler.state` object or custom state object. +* `node` **{Object}**: Instance of [snapdragon-node](https://github.com/jonschlinkert/snapdragon-node) +* `returns` **{Array}**: Returns the `state.inside` stack for the given type. + +**Example** + +```js +var state = { inside: {}}; +var node = new Node({type: 'brace'}); +utils.addType(state, node); +console.log(state.inside); +//=> { brace: [{type: 'brace'}] } +``` + +### [.removeType](index.js#L759) + +Remove the given `node` from the `state.inside` array for the given type. This array is used as a specialized "stack" for only the given `node.type`. + +**Params** + +* `state` **{Object}**: The `compiler.state` object or custom state object. +* `node` **{Object}**: Instance of [snapdragon-node](https://github.com/jonschlinkert/snapdragon-node) +* `returns` **{Array}**: Returns the `state.inside` stack for the given type. + +**Example** + +```js +var state = { inside: {}}; +var node = new Node({type: 'brace'}); +utils.addType(state, node); +console.log(state.inside); +//=> { brace: [{type: 'brace'}] } +utils.removeType(state, node); +//=> { brace: [] } +``` + +### [.isEmpty](index.js#L788) + +Returns true if `node.val` is an empty string, or `node.nodes` does not contain any non-empty text nodes. + +**Params** + +* `node` **{Object}**: Instance of [snapdragon-node](https://github.com/jonschlinkert/snapdragon-node) +* `fn` **{Function}** +* `returns` **{Boolean}** + +**Example** + +```js +var node = new Node({type: 'text'}); +utils.isEmpty(node); //=> true +node.val = 'foo'; +utils.isEmpty(node); //=> false +``` + +### [.isInsideType](index.js#L833) + +Returns true if the `state.inside` stack for the given type exists and has one or more nodes on it. + +**Params** + +* `state` **{Object}** +* `type` **{String}** +* `returns` **{Boolean}** + +**Example** + +```js +var state = { inside: {}}; +var node = new Node({type: 'brace'}); +console.log(utils.isInsideType(state, 'brace')); //=> false +utils.addType(state, node); +console.log(utils.isInsideType(state, 'brace')); //=> true +utils.removeType(state, node); +console.log(utils.isInsideType(state, 'brace')); //=> false +``` + +### [.isInside](index.js#L867) + +Returns true if `node` is either a child or grand-child of the given `type`, or `state.inside[type]` is a non-empty array. + +**Params** + +* `state` **{Object}**: Either the `compiler.state` object, if it exists, or a user-supplied state object. +* `node` **{Object}**: Instance of [snapdragon-node](https://github.com/jonschlinkert/snapdragon-node) +* `type` **{String}**: The `node.type` to check for. +* `returns` **{Boolean}** + +**Example** + +```js +var state = { inside: {}}; +var node = new Node({type: 'brace'}); +var open = new Node({type: 'brace.open'}); +console.log(utils.isInside(state, open, 'brace')); //=> false +utils.pushNode(node, open); +console.log(utils.isInside(state, open, 'brace')); //=> true +``` + +### [.last](index.js#L915) + +Get the last `n` element from the given `array`. Used for getting +a node from `node.nodes.` + +**Params** + +* `array` **{Array}** +* `n` **{Number}** +* `returns` **{undefined}** + +### [.arrayify](index.js#L935) + +Cast the given `val` to an array. + +**Params** + +* `val` **{any}** +* `returns` **{Array}** + +**Example** + +```js +console.log(utils.arraify('')); +//=> [] +console.log(utils.arraify('foo')); +//=> ['foo'] +console.log(utils.arraify(['foo'])); +//=> ['foo'] +``` + +### [.stringify](index.js#L948) + +Convert the given `val` to a string by joining with `,`. Useful +for creating a cheerio/CSS/DOM-style selector from a list of strings. + +**Params** + +* `val` **{any}** +* `returns` **{Array}** + +### [.trim](index.js#L961) + +Ensure that the given value is a string and call `.trim()` on it, +or return an empty string. + +**Params** + +* `str` **{String}** +* `returns` **{String}** + +## Release history + +Changelog entries are classified using the following labels from [keep-a-changelog](https://github.com/olivierlacan/keep-a-changelog): + +* `added`: for new features +* `changed`: for changes in existing functionality +* `deprecated`: for once-stable features removed in upcoming releases +* `removed`: for deprecated features removed in this release +* `fixed`: for any bug fixes + +Custom labels used in this changelog: + +* `dependencies`: bumps dependencies +* `housekeeping`: code re-organization, minor edits, or other changes that don't fit in one of the other categories. + +### [3.0.0] - 2017-05-01 + +**Changed** + +* `.emit` was renamed to [.append](#append) +* `.addNode` was renamed to [.pushNode](#pushNode) +* `.getNode` was renamed to [.findNode](#findNode) +* `.isEmptyNodes` was renamed to [.isEmpty](#isEmpty): also now works with `node.nodes` and/or `node.val` + +**Added** + +* [.identity](#identity) +* [.removeNode](#removeNode) +* [.shiftNode](#shiftNode) +* [.popNode](#popNode) + +### [0.1.0] + +First release. + +## About + +### Contributing + +Pull requests and stars are always welcome. For bugs and feature requests, [please create an issue](../../issues/new). + +Please read the [contributing guide](.github/contributing.md) for advice on opening issues, pull requests, and coding standards. + +### Building docs + +_(This project's readme.md is generated by [verb](https://github.com/verbose/verb-generate-readme), please don't edit the readme directly. Any changes to the readme must be made in the [.verb.md](.verb.md) readme template.)_ + +To generate the readme, run the following command: + +```sh +$ npm install -g verbose/verb#dev verb-generate-readme && verb +``` + +### Running tests + +Running and reviewing unit tests is a great way to get familiarized with a library and its API. You can install dependencies and run tests with the following command: + +```sh +$ npm install && npm test +``` + +### Author + +**Jon Schlinkert** + +* [github/jonschlinkert](https://github.com/jonschlinkert) +* [twitter/jonschlinkert](https://twitter.com/jonschlinkert) + +### License + +Copyright © 2017, [Jon Schlinkert](https://github.com/jonschlinkert). +Released under the [MIT License](LICENSE). + +*** + +_This file was generated by [verb-generate-readme](https://github.com/verbose/verb-generate-readme), v0.6.0, on May 01, 2017._
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