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Diffstat (limited to 'node_modules/snapdragon-util/index.js')
-rw-r--r-- | node_modules/snapdragon-util/index.js | 1019 |
1 files changed, 0 insertions, 1019 deletions
diff --git a/node_modules/snapdragon-util/index.js b/node_modules/snapdragon-util/index.js deleted file mode 100644 index 68a030ec1..000000000 --- a/node_modules/snapdragon-util/index.js +++ /dev/null @@ -1,1019 +0,0 @@ -'use strict'; - -var typeOf = require('kind-of'); -var utils = module.exports; - -/** - * Returns true if the given value is a node. - * - * ```js - * var Node = require('snapdragon-node'); - * var node = new Node({type: 'foo'}); - * console.log(utils.isNode(node)); //=> true - * console.log(utils.isNode({})); //=> false - * ``` - * @param {Object} `node` Instance of [snapdragon-node][] - * @returns {Boolean} - * @api public - */ - -utils.isNode = function(node) { - return typeOf(node) === 'object' && node.isNode === true; -}; - -/** - * Emit an empty string for the given `node`. - * - * ```js - * // do nothing for beginning-of-string - * snapdragon.compiler.set('bos', utils.noop); - * ``` - * @param {Object} `node` Instance of [snapdragon-node][] - * @returns {undefined} - * @api public - */ - -utils.noop = function(node) { - append(this, '', node); -}; - -/** - * Appdend `node.val` to `compiler.output`, exactly as it was created - * by the parser. - * - * ```js - * snapdragon.compiler.set('text', utils.identity); - * ``` - * @param {Object} `node` Instance of [snapdragon-node][] - * @returns {undefined} - * @api public - */ - -utils.identity = function(node) { - append(this, node.val, node); -}; - -/** - * 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`. - * - * ```js - * snapdragon.compiler - * .set('i', function(node) { - * this.mapVisit(node); - * }) - * .set('i.open', utils.append('<i>')) - * .set('i.close', utils.append('</i>')) - * ``` - * @param {Object} `node` Instance of [snapdragon-node][] - * @returns {Function} Returns a compiler middleware function. - * @api public - */ - -utils.append = function(val) { - return function(node) { - append(this, val, node); - }; -}; - -/** - * 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. - * - * ```js - * utils.toNoop(node); - * // convert `node.nodes` to the given value instead of deleting it - * utils.toNoop(node, []); - * ``` - * @param {Object} `node` Instance of [snapdragon-node][] - * @param {Array} `nodes` Optionally pass a new `nodes` value, to replace the existing `node.nodes` array. - * @api public - */ - -utils.toNoop = function(node, nodes) { - if (nodes) { - node.nodes = nodes; - } else { - delete node.nodes; - node.type = 'text'; - node.val = ''; - } -}; - -/** - * 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. - * - * ```js - * snapdragon.compiler.set('i', function(node) { - * utils.visit(node, function(childNode) { - * // do stuff with "childNode" - * return childNode; - * }); - * }); - * ``` - * @param {Object} `node` Instance of [snapdragon-node][] - * @param {Function} `fn` - * @return {Object} returns the node after recursively visiting all child nodes. - * @api public - */ - -utils.visit = function(node, fn) { - assert(utils.isNode(node), 'expected node to be an instance of Node'); - assert(isFunction(fn), 'expected a visitor function'); - fn(node); - return node.nodes ? utils.mapVisit(node, fn) : node; -}; - -/** - * 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. - * - * ```js - * snapdragon.compiler.set('i', function(node) { - * utils.mapVisit(node, function(childNode) { - * // do stuff with "childNode" - * return childNode; - * }); - * }); - * ``` - * @param {Object} `node` Instance of [snapdragon-node][] - * @param {Object} `options` - * @param {Function} `fn` - * @return {Object} returns the node - * @api public - */ - -utils.mapVisit = function(node, fn) { - assert(utils.isNode(node), 'expected node to be an instance of Node'); - assert(isArray(node.nodes), 'expected node.nodes to be an array'); - assert(isFunction(fn), 'expected a visitor function'); - - for (var i = 0; i < node.nodes.length; i++) { - utils.visit(node.nodes[i], fn); - } - return node; -}; - -/** - * Unshift an `*.open` node onto `node.nodes`. - * - * ```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; - * } - * }); - * ``` - * @param {Object} `node` Instance of [snapdragon-node][] - * @param {Function} `Node` (required) Node constructor function from [snapdragon-node][]. - * @param {Function} `filter` Optionaly specify a filter function to exclude the node. - * @return {Object} Returns the created opening node. - * @api public - */ - -utils.addOpen = function(node, Node, val, filter) { - assert(utils.isNode(node), 'expected node to be an instance of Node'); - assert(isFunction(Node), 'expected Node to be a constructor function'); - - if (typeof val === 'function') { - filter = val; - val = ''; - } - - if (typeof filter === 'function' && !filter(node)) return; - var open = new Node({ type: node.type + '.open', val: val}); - var unshift = node.unshift || node.unshiftNode; - if (typeof unshift === 'function') { - unshift.call(node, open); - } else { - utils.unshiftNode(node, open); - } - return open; -}; - -/** - * Push a `*.close` node onto `node.nodes`. - * - * ```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; - * } - * }); - * ``` - * @param {Object} `node` Instance of [snapdragon-node][] - * @param {Function} `Node` (required) Node constructor function from [snapdragon-node][]. - * @param {Function} `filter` Optionaly specify a filter function to exclude the node. - * @return {Object} Returns the created closing node. - * @api public - */ - -utils.addClose = function(node, Node, val, filter) { - assert(utils.isNode(node), 'expected node to be an instance of Node'); - assert(isFunction(Node), 'expected Node to be a constructor function'); - - if (typeof val === 'function') { - filter = val; - val = ''; - } - - if (typeof filter === 'function' && !filter(node)) return; - var close = new Node({ type: node.type + '.close', val: val}); - var push = node.push || node.pushNode; - if (typeof push === 'function') { - push.call(node, close); - } else { - utils.pushNode(node, close); - } - return close; -}; - -/** - * Wraps the given `node` with `*.open` and `*.close` nodes. - * - * @param {Object} `node` Instance of [snapdragon-node][] - * @param {Function} `Node` (required) Node constructor function from [snapdragon-node][]. - * @param {Function} `filter` Optionaly specify a filter function to exclude the node. - * @return {Object} Returns the node - * @api public - */ - -utils.wrapNodes = function(node, Node, filter) { - assert(utils.isNode(node), 'expected node to be an instance of Node'); - assert(isFunction(Node), 'expected Node to be a constructor function'); - - utils.addOpen(node, Node, filter); - utils.addClose(node, Node, filter); - return node; -}; - -/** - * Push the given `node` onto `parent.nodes`, and set `parent` as `node.parent. - * - * ```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' - * ``` - * @param {Object} `parent` - * @param {Object} `node` Instance of [snapdragon-node][] - * @return {Object} Returns the child node - * @api public - */ - -utils.pushNode = function(parent, node) { - assert(utils.isNode(parent), 'expected parent node to be an instance of Node'); - assert(utils.isNode(node), 'expected node to be an instance of Node'); - - node.define('parent', parent); - parent.nodes = parent.nodes || []; - parent.nodes.push(node); - return node; -}; - -/** - * Unshift `node` onto `parent.nodes`, and set `parent` as `node.parent. - * - * ```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' - * ``` - * @param {Object} `parent` - * @param {Object} `node` Instance of [snapdragon-node][] - * @return {undefined} - * @api public - */ - -utils.unshiftNode = function(parent, node) { - assert(utils.isNode(parent), 'expected parent node to be an instance of Node'); - assert(utils.isNode(node), 'expected node to be an instance of Node'); - - node.define('parent', parent); - parent.nodes = parent.nodes || []; - parent.nodes.unshift(node); -}; - -/** - * 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`. - * - * ```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 - * ``` - * @param {Object} `parent` - * @param {Object} `node` Instance of [snapdragon-node][] - * @return {Number|Undefined} Returns the length of `node.nodes` or undefined. - * @api public - */ - -utils.popNode = function(node) { - assert(utils.isNode(node), 'expected node to be an instance of Node'); - if (typeof node.pop === 'function') { - return node.pop(); - } - return node.nodes && node.nodes.pop(); -}; - -/** - * 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`. - * - * ```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 - * ``` - * @param {Object} `parent` - * @param {Object} `node` Instance of [snapdragon-node][] - * @return {Number|Undefined} Returns the length of `node.nodes` or undefined. - * @api public - */ - -utils.shiftNode = function(node) { - assert(utils.isNode(node), 'expected node to be an instance of Node'); - if (typeof node.shift === 'function') { - return node.shift(); - } - return node.nodes && node.nodes.shift(); -}; - -/** - * Remove the specified `node` from `parent.nodes`. - * - * ```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 - * ``` - * @param {Object} `parent` - * @param {Object} `node` Instance of [snapdragon-node][] - * @return {Object|undefined} Returns the removed node, if successful, or undefined if it does not exist on `parent.nodes`. - * @api public - */ - -utils.removeNode = function(parent, node) { - assert(utils.isNode(parent), 'expected parent.node to be an instance of Node'); - assert(utils.isNode(node), 'expected node to be an instance of Node'); - - if (!parent.nodes) { - return null; - } - - if (typeof parent.remove === 'function') { - return parent.remove(node); - } - - var idx = parent.nodes.indexOf(node); - if (idx !== -1) { - return parent.nodes.splice(idx, 1); - } -}; - -/** - * Returns true if `node.type` matches the given `type`. Throws a - * `TypeError` if `node` is not an instance of `Node`. - * - * ```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 - * ``` - * @param {Object} `node` Instance of [snapdragon-node][] - * @param {String} `type` - * @return {Boolean} - * @api public - */ - -utils.isType = function(node, type) { - assert(utils.isNode(node), 'expected node to be an instance of Node'); - switch (typeOf(type)) { - case 'array': - var types = type.slice(); - for (var i = 0; i < types.length; i++) { - if (utils.isType(node, types[i])) { - return true; - } - } - return false; - case 'string': - return node.type === type; - case 'regexp': - return type.test(node.type); - default: { - throw new TypeError('expected "type" to be an array, string or regexp'); - } - } -}; - -/** - * Returns true if the given `node` has the given `type` in `node.nodes`. - * Throws a `TypeError` if `node` is not an instance of `Node`. - * - * ```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 - * ``` - * @param {Object} `node` Instance of [snapdragon-node][] - * @param {String} `type` - * @return {Boolean} - * @api public - */ - -utils.hasType = function(node, type) { - assert(utils.isNode(node), 'expected node to be an instance of Node'); - if (!Array.isArray(node.nodes)) return false; - for (var i = 0; i < node.nodes.length; i++) { - if (utils.isType(node.nodes[i], type)) { - return true; - } - } - return false; -}; - -/** - * Returns the first node from `node.nodes` of the given `type` - * - * ```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' - * ``` - * @param {Array} `nodes` - * @param {String} `type` - * @return {Object|undefined} Returns the first matching node or undefined. - * @api public - */ - -utils.firstOfType = function(nodes, type) { - for (var i = 0; i < nodes.length; i++) { - var node = nodes[i]; - if (utils.isType(node, type)) { - return node; - } - } -}; - -/** - * Returns the node at the specified index, or the first node of the - * given `type` from `node.nodes`. - * - * ```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' - * ``` - * - * @param {Array} `nodes` - * @param {String|Number} `type` Node type or index. - * @return {Object} Returns a node or undefined. - * @api public - */ - -utils.findNode = function(nodes, type) { - if (!Array.isArray(nodes)) { - return null; - } - if (typeof type === 'number') { - return nodes[type]; - } - return utils.firstOfType(nodes, type); -}; - -/** - * Returns true if the given node is an "*.open" node. - * - * ```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 - * ``` - * @param {Object} `node` Instance of [snapdragon-node][] - * @return {Boolean} - * @api public - */ - -utils.isOpen = function(node) { - assert(utils.isNode(node), 'expected node to be an instance of Node'); - return node.type.slice(-5) === '.open'; -}; - -/** - * Returns true if the given node is a "*.close" node. - * - * ```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 - * ``` - * @param {Object} `node` Instance of [snapdragon-node][] - * @return {Boolean} - * @api public - */ - -utils.isClose = function(node) { - assert(utils.isNode(node), 'expected node to be an instance of Node'); - return node.type.slice(-6) === '.close'; -}; - -/** - * Returns true if `node.nodes` **has** an `.open` node - * - * ```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 - * ``` - * @param {Object} `node` Instance of [snapdragon-node][] - * @return {Boolean} - * @api public - */ - -utils.hasOpen = function(node) { - assert(utils.isNode(node), 'expected node to be an instance of Node'); - var first = node.first || node.nodes ? node.nodes[0] : null; - if (utils.isNode(first)) { - return first.type === node.type + '.open'; - } - return false; -}; - -/** - * Returns true if `node.nodes` **has** a `.close` node - * - * ```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 - * ``` - * @param {Object} `node` Instance of [snapdragon-node][] - * @return {Boolean} - * @api public - */ - -utils.hasClose = function(node) { - assert(utils.isNode(node), 'expected node to be an instance of Node'); - var last = node.last || node.nodes ? node.nodes[node.nodes.length - 1] : null; - if (utils.isNode(last)) { - return last.type === node.type + '.close'; - } - return false; -}; - -/** - * Returns true if `node.nodes` has both `.open` and `.close` nodes - * - * ```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 - * ``` - * @param {Object} `node` Instance of [snapdragon-node][] - * @return {Boolean} - * @api public - */ - -utils.hasOpenAndClose = function(node) { - return utils.hasOpen(node) && utils.hasClose(node); -}; - -/** - * 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`. - * - * ```js - * var state = { inside: {}}; - * var node = new Node({type: 'brace'}); - * utils.addType(state, node); - * console.log(state.inside); - * //=> { brace: [{type: 'brace'}] } - * ``` - * @param {Object} `state` The `compiler.state` object or custom state object. - * @param {Object} `node` Instance of [snapdragon-node][] - * @return {Array} Returns the `state.inside` stack for the given type. - * @api public - */ - -utils.addType = function(state, node) { - assert(utils.isNode(node), 'expected node to be an instance of Node'); - assert(isObject(state), 'expected state to be an object'); - - var type = node.parent - ? node.parent.type - : node.type.replace(/\.open$/, ''); - - if (!state.hasOwnProperty('inside')) { - state.inside = {}; - } - if (!state.inside.hasOwnProperty(type)) { - state.inside[type] = []; - } - - var arr = state.inside[type]; - arr.push(node); - return arr; -}; - -/** - * Remove the given `node` from the `state.inside` array for the - * given type. This array is used as a specialized "stack" for - * only the given `node.type`. - * - * ```js - * var state = { inside: {}}; - * var node = new Node({type: 'brace'}); - * utils.addType(state, node); - * console.log(state.inside); - * //=> { brace: [{type: 'brace'}] } - * utils.removeType(state, node); - * //=> { brace: [] } - * ``` - * @param {Object} `state` The `compiler.state` object or custom state object. - * @param {Object} `node` Instance of [snapdragon-node][] - * @return {Array} Returns the `state.inside` stack for the given type. - * @api public - */ - -utils.removeType = function(state, node) { - assert(utils.isNode(node), 'expected node to be an instance of Node'); - assert(isObject(state), 'expected state to be an object'); - - var type = node.parent - ? node.parent.type - : node.type.replace(/\.close$/, ''); - - if (state.inside.hasOwnProperty(type)) { - return state.inside[type].pop(); - } -}; - -/** - * Returns true if `node.val` is an empty string, or `node.nodes` does - * not contain any non-empty text nodes. - * - * ```js - * var node = new Node({type: 'text'}); - * utils.isEmpty(node); //=> true - * node.val = 'foo'; - * utils.isEmpty(node); //=> false - * ``` - * @param {Object} `node` Instance of [snapdragon-node][] - * @param {Function} `fn` - * @return {Boolean} - * @api public - */ - -utils.isEmpty = function(node, fn) { - assert(utils.isNode(node), 'expected node to be an instance of Node'); - - if (!Array.isArray(node.nodes)) { - if (node.type !== 'text') { - return true; - } - if (typeof fn === 'function') { - return fn(node, node.parent); - } - return !utils.trim(node.val); - } - - for (var i = 0; i < node.nodes.length; i++) { - var child = node.nodes[i]; - if (utils.isOpen(child) || utils.isClose(child)) { - continue; - } - if (!utils.isEmpty(child, fn)) { - return false; - } - } - - return true; -}; - -/** - * Returns true if the `state.inside` stack for the given type exists - * and has one or more nodes on it. - * - * ```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 - * ``` - * @param {Object} `state` - * @param {String} `type` - * @return {Boolean} - * @api public - */ - -utils.isInsideType = function(state, type) { - assert(isObject(state), 'expected state to be an object'); - assert(isString(type), 'expected type to be a string'); - - if (!state.hasOwnProperty('inside')) { - return false; - } - - if (!state.inside.hasOwnProperty(type)) { - return false; - } - - return state.inside[type].length > 0; -}; - -/** - * Returns true if `node` is either a child or grand-child of the given `type`, - * or `state.inside[type]` is a non-empty array. - * - * ```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 - * ``` - * @param {Object} `state` Either the `compiler.state` object, if it exists, or a user-supplied state object. - * @param {Object} `node` Instance of [snapdragon-node][] - * @param {String} `type` The `node.type` to check for. - * @return {Boolean} - * @api public - */ - -utils.isInside = function(state, node, type) { - assert(utils.isNode(node), 'expected node to be an instance of Node'); - assert(isObject(state), 'expected state to be an object'); - - if (Array.isArray(type)) { - for (var i = 0; i < type.length; i++) { - if (utils.isInside(state, node, type[i])) { - return true; - } - } - return false; - } - - var parent = node.parent; - if (typeof type === 'string') { - return (parent && parent.type === type) || utils.isInsideType(state, type); - } - - if (typeOf(type) === 'regexp') { - if (parent && parent.type && type.test(parent.type)) { - return true; - } - - var keys = Object.keys(state.inside); - var len = keys.length; - var idx = -1; - while (++idx < len) { - var key = keys[idx]; - var val = state.inside[key]; - - if (Array.isArray(val) && val.length !== 0 && type.test(key)) { - return true; - } - } - } - return false; -}; - -/** - * Get the last `n` element from the given `array`. Used for getting - * a node from `node.nodes.` - * - * @param {Array} `array` - * @param {Number} `n` - * @return {undefined} - * @api public - */ - -utils.last = function(arr, n) { - return arr[arr.length - (n || 1)]; -}; - -/** - * Cast the given `val` to an array. - * - * ```js - * console.log(utils.arrayify('')); - * //=> [] - * console.log(utils.arrayify('foo')); - * //=> ['foo'] - * console.log(utils.arrayify(['foo'])); - * //=> ['foo'] - * ``` - * @param {any} `val` - * @return {Array} - * @api public - */ - -utils.arrayify = function(val) { - if (typeof val === 'string' && val !== '') { - return [val]; - } - if (!Array.isArray(val)) { - return []; - } - return val; -}; - -/** - * Convert the given `val` to a string by joining with `,`. Useful - * for creating a cheerio/CSS/DOM-style selector from a list of strings. - * - * @param {any} `val` - * @return {Array} - * @api public - */ - -utils.stringify = function(val) { - return utils.arrayify(val).join(','); -}; - -/** - * Ensure that the given value is a string and call `.trim()` on it, - * or return an empty string. - * - * @param {String} `str` - * @return {String} - * @api public - */ - -utils.trim = function(str) { - return typeof str === 'string' ? str.trim() : ''; -}; - -/** - * Return true if val is an object - */ - -function isObject(val) { - return typeOf(val) === 'object'; -} - -/** - * Return true if val is a string - */ - -function isString(val) { - return typeof val === 'string'; -} - -/** - * Return true if val is a function - */ - -function isFunction(val) { - return typeof val === 'function'; -} - -/** - * Return true if val is an array - */ - -function isArray(val) { - return Array.isArray(val); -} - -/** - * Shim to ensure the `.append` methods work with any version of snapdragon - */ - -function append(compiler, val, node) { - if (typeof compiler.append !== 'function') { - return compiler.emit(val, node); - } - return compiler.append(val, node); -} - -/** - * Simplified assertion. Throws an error is `val` is falsey. - */ - -function assert(val, message) { - if (!val) throw new Error(message); -} |