Index: imaps-frontend/node_modules/css-select/README.md
===================================================================
--- imaps-frontend/node_modules/css-select/README.md	(revision 79a03170cdde4e801d12257ee86723774970427b)
+++ imaps-frontend/node_modules/css-select/README.md	(revision 79a03170cdde4e801d12257ee86723774970427b)
@@ -0,0 +1,255 @@
+# css-select [![NPM version](http://img.shields.io/npm/v/css-select.svg)](https://npmjs.org/package/css-select) [![Build Status](https://travis-ci.com/fb55/css-select.svg?branch=master)](http://travis-ci.com/fb55/css-select) [![Downloads](https://img.shields.io/npm/dm/css-select.svg)](https://npmjs.org/package/css-select) [![Coverage](https://coveralls.io/repos/fb55/css-select/badge.svg?branch=master)](https://coveralls.io/r/fb55/css-select)
+
+A CSS selector compiler and engine
+
+## What?
+
+As a **compiler**, css-select turns CSS selectors into functions that tests if
+elements match them.
+
+As an **engine**, css-select looks through a DOM tree, searching for elements.
+Elements are tested "from the top", similar to how browsers execute CSS
+selectors.
+
+In its default configuration, css-select queries the DOM structure of the
+[`domhandler`](https://github.com/fb55/domhandler) module (also known as
+htmlparser2 DOM). To query alternative DOM structures, see [`Options`](#options)
+below.
+
+**Features:**
+
+-   🔬 Full implementation of CSS3 selectors, as well as most CSS4 selectors
+-   🧪 Partial implementation of jQuery/Sizzle extensions (see
+    [cheerio-select](https://github.com/cheeriojs/cheerio-select) for the
+    remaining selectors)
+-   🧑‍🔬 High test coverage, including the full test suites from Sizzle, Qwery and
+    NWMatcher.
+-   🥼 Reliably great performance
+
+## Why?
+
+Most CSS engines written in JavaScript execute selectors left-to-right. That
+means thet execute every component of the selector in order, from left to right
+_(duh)_. As an example: For the selector `a b`, these engines will first query
+for `a` elements, then search these for `b` elements. (That's the approach of
+eg. [`Sizzle`](https://github.com/jquery/sizzle),
+[`nwmatcher`](https://github.com/dperini/nwmatcher/) and
+[`qwery`](https://github.com/ded/qwery).)
+
+While this works, it has some downsides: Children of `a`s will be checked
+multiple times; first, to check if they are also `a`s, then, for every superior
+`a` once, if they are `b`s. Using
+[Big O notation](http://en.wikipedia.org/wiki/Big_O_notation), that would be
+`O(n^(k+1))`, where `k` is the number of descendant selectors (that's the space
+in the example above).
+
+The far more efficient approach is to first look for `b` elements, then check if
+they have superior `a` elements: Using big O notation again, that would be
+`O(n)`. That's called right-to-left execution.
+
+And that's what css-select does – and why it's quite performant.
+
+## How does it work?
+
+By building a stack of functions.
+
+_Wait, what?_
+
+Okay, so let's suppose we want to compile the selector `a b`, for right-to-left
+execution. We start by _parsing_ the selector. This turns the selector into an
+array of the building blocks. That's what the
+[`css-what`](https://github.com/fb55/css-what) module is for, if you want to
+have a look.
+
+Anyway, after parsing, we end up with an array like this one:
+
+```js
+[
+    { type: "tag", name: "a" },
+    { type: "descendant" },
+    { type: "tag", name: "b" },
+];
+```
+
+(Actually, this array is wrapped in another array, but that's another story,
+involving commas in selectors.)
+
+Now that we know the meaning of every part of the selector, we can compile it.
+That is where things become interesting.
+
+The basic idea is to turn every part of the selector into a function, which
+takes an element as its only argument. The function checks whether a passed
+element matches its part of the selector: If it does, the element is passed to
+the next function representing the next part of the selector. That function does
+the same. If an element is accepted by all parts of the selector, it _matches_
+the selector and double rainbow ALL THE WAY.
+
+As said before, we want to do right-to-left execution with all the big O
+improvements. That means elements are passed from the rightmost part of the
+selector (`b` in our example) to the leftmost (~~which would be `c`~~ of course
+`a`).
+
+For traversals, such as the _descendant_ operating the space between `a` and
+`b`, we walk up the DOM tree, starting from the element passed as argument.
+
+_//TODO: More in-depth description. Implementation details. Build a spaceship._
+
+## API
+
+```js
+const CSSselect = require("css-select");
+```
+
+**Note:** css-select throws errors when invalid selectors are passed to it.This
+is done to aid with writing css selectors, but can be unexpected when processing
+arbitrary strings.
+
+#### `CSSselect.selectAll(query, elems, options)`
+
+Queries `elems`, returns an array containing all matches.
+
+-   `query` can be either a CSS selector or a function.
+-   `elems` can be either an array of elements, or a single element. If it is an
+    element, its children will be queried.
+-   `options` is described below.
+
+Aliases: `default` export, `CSSselect.iterate(query, elems)`.
+
+#### `CSSselect.compile(query, options)`
+
+Compiles the query, returns a function.
+
+#### `CSSselect.is(elem, query, options)`
+
+Tests whether or not an element is matched by `query`. `query` can be either a
+CSS selector or a function.
+
+#### `CSSselect.selectOne(query, elems, options)`
+
+Arguments are the same as for `CSSselect.selectAll(query, elems)`. Only returns
+the first match, or `null` if there was no match.
+
+### Options
+
+All options are optional.
+
+-   `xmlMode`: When enabled, tag names will be case-sensitive. Default: `false`.
+-   `rootFunc`: The last function in the stack, will be called with the last
+    element that's looked at.
+-   `adapter`: The adapter to use when interacting with the backing DOM
+    structure. By default it uses the `domutils` module.
+-   `context`: The context of the current query. Used to limit the scope of
+    searches. Can be matched directly using the `:scope` pseudo-selector.
+-   `cacheResults`: Allow css-select to cache results for some selectors,
+    sometimes greatly improving querying performance. Disable this if your
+    document can change in between queries with the same compiled selector.
+    Default: `true`.
+
+#### Custom Adapters
+
+A custom adapter must match the interface described
+[here](https://github.com/fb55/css-select/blob/1aa44bdd64aaf2ebdfd7f338e2e76bed36521957/src/types.ts#L6-L96).
+
+You may want to have a look at [`domutils`](https://github.com/fb55/domutils) to
+see the default implementation, or at
+[`css-select-browser-adapter`](https://github.com/nrkn/css-select-browser-adapter/blob/master/index.js)
+for an implementation backed by the DOM.
+
+## Supported selectors
+
+_As defined by CSS 4 and / or jQuery._
+
+-   [Selector lists](https://developer.mozilla.org/en-US/docs/Web/CSS/Selector_list)
+    (`,`)
+-   [Universal](https://developer.mozilla.org/en-US/docs/Web/CSS/Universal_selectors)
+    (`*`)
+-   [Type](https://developer.mozilla.org/en-US/docs/Web/CSS/Type_selectors)
+    (`<tagname>`)
+-   [Descendant](https://developer.mozilla.org/en-US/docs/Web/CSS/Descendant_combinator)
+    (` `)
+-   [Child](https://developer.mozilla.org/en-US/docs/Web/CSS/Child_combinator)
+    (`>`)
+-   Parent (`<`)
+-   [Adjacent sibling](https://developer.mozilla.org/en-US/docs/Web/CSS/Adjacent_sibling_combinator)
+    (`+`)
+-   [General sibling](https://developer.mozilla.org/en-US/docs/Web/CSS/General_sibling_combinator)
+    (`~`)
+-   [Attribute](https://developer.mozilla.org/en-US/docs/Web/CSS/Attribute_selectors)
+    (`[attr=foo]`), with supported comparisons:
+    -   `[attr]` (existential)
+    -   `=`
+    -   `~=`
+    -   `|=`
+    -   `*=`
+    -   `^=`
+    -   `$=`
+    -   `!=`
+    -   `i` and `s` can be added after the comparison to make the comparison
+        case-insensitive or case-sensitive (eg. `[attr=foo i]`). If neither is
+        supplied, css-select will follow the HTML spec's
+        [case-sensitivity rules](https://html.spec.whatwg.org/multipage/semantics-other.html#case-sensitivity-of-selectors).
+-   Pseudos:
+    -   [`:not`](https://developer.mozilla.org/en-US/docs/Web/CSS/:not)
+    -   [`:contains`](https://api.jquery.com/contains-selector)
+    -   `:icontains` (case-insensitive version of `:contains`)
+    -   [`:has`](https://developer.mozilla.org/en-US/docs/Web/CSS/:has)
+    -   [`:root`](https://developer.mozilla.org/en-US/docs/Web/CSS/:root)
+    -   [`:empty`](https://developer.mozilla.org/en-US/docs/Web/CSS/:empty)
+    -   [`:parent`](https://api.jquery.com/parent-selector)
+    -   [`:first-child`](https://developer.mozilla.org/en-US/docs/Web/CSS/:first-child),
+        [`:last-child`](https://developer.mozilla.org/en-US/docs/Web/CSS/:last-child),
+        [`:first-of-type`](https://developer.mozilla.org/en-US/docs/Web/CSS/:first-of-type),
+        [`:last-of-type`](https://developer.mozilla.org/en-US/docs/Web/CSS/:last-of-type)
+    -   [`:only-of-type`](https://developer.mozilla.org/en-US/docs/Web/CSS/:only-of-type),
+        [`:only-child`](https://developer.mozilla.org/en-US/docs/Web/CSS/:only-child)
+    -   [`:nth-child`](https://developer.mozilla.org/en-US/docs/Web/CSS/:nth-child),
+        [`:nth-last-child`](https://developer.mozilla.org/en-US/docs/Web/CSS/:nth-last-child),
+        [`:nth-of-type`](https://developer.mozilla.org/en-US/docs/Web/CSS/:nth-of-type),
+        [`:nth-last-of-type`](https://developer.mozilla.org/en-US/docs/Web/CSS/:nth-last-of-type),
+    -   [`:link`](https://developer.mozilla.org/en-US/docs/Web/CSS/:link),
+        [`:any-link`](https://developer.mozilla.org/en-US/docs/Web/CSS/:any-link)
+    -   [`:visited`](https://developer.mozilla.org/en-US/docs/Web/CSS/:visited),
+        [`:hover`](https://developer.mozilla.org/en-US/docs/Web/CSS/:hover),
+        [`:active`](https://developer.mozilla.org/en-US/docs/Web/CSS/:active)
+        (these depend on optional `Adapter` methods, so these will only match
+        elements if implemented in `Adapter`)
+    -   [`:selected`](https://api.jquery.com/selected-selector),
+        [`:checked`](https://developer.mozilla.org/en-US/docs/Web/CSS/:checked)
+    -   [`:enabled`](https://developer.mozilla.org/en-US/docs/Web/CSS/:enabled),
+        [`:disabled`](https://developer.mozilla.org/en-US/docs/Web/CSS/:disabled)
+    -   [`:required`](https://developer.mozilla.org/en-US/docs/Web/CSS/:required),
+        [`:optional`](https://developer.mozilla.org/en-US/docs/Web/CSS/:optional)
+    -   [`:header`](https://api.jquery.com/header-selector),
+        [`:button`](https://api.jquery.com/button-selector),
+        [`:input`](https://api.jquery.com/input-selector),
+        [`:text`](https://api.jquery.com/text-selector),
+        [`:checkbox`](https://api.jquery.com/checkbox-selector),
+        [`:file`](https://api.jquery.com/file-selector),
+        [`:password`](https://api.jquery.com/password-selector),
+        [`:reset`](https://api.jquery.com/reset-selector),
+        [`:radio`](https://api.jquery.com/radio-selector) etc.
+    -   [`:is`](https://developer.mozilla.org/en-US/docs/Web/CSS/:is), plus its
+        legacy alias `:matches`
+    -   [`:scope`](https://developer.mozilla.org/en-US/docs/Web/CSS/:scope)
+        (uses the context from the passed options)
+
+---
+
+License: BSD-2-Clause
+
+## Security contact information
+
+To report a security vulnerability, please use the
+[Tidelift security contact](https://tidelift.com/security). Tidelift will
+coordinate the fix and disclosure.
+
+## `css-select` for enterprise
+
+Available as part of the Tidelift Subscription
+
+The maintainers of `css-select` and thousands of other packages are working with
+Tidelift to deliver commercial support and maintenance for the open source
+dependencies you use to build your applications. Save time, reduce risk, and
+improve code health, while paying the maintainers of the exact dependencies you
+use.
+[Learn more.](https://tidelift.com/subscription/pkg/npm-css-select?utm_source=npm-css-select&utm_medium=referral&utm_campaign=enterprise&utm_term=repo)
