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third_party/polymer/v1_0/components-chromium/iron-input/README.md

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-[![Build Status](https://travis-ci.org/PolymerElements/iron-input.svg?branch=master)](https://travis-ci.org/PolymerElements/iron-input)
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-_[Demo and API Docs](https://elements.polymer-project.org/elements/iron-input)_
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-##&lt;iron-input&gt;
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-`<iron-input>` adds two-way binding and custom validators using `Polymer.IronValidatorBehavior`
-to `<input>`.
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-### Two-way binding
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-By default you can only get notified of changes to an `input`'s `value` due to user input:
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-    <input value="{{myValue::input}}">
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-`iron-input` adds the `bind-value` property that mirrors the `value` property, and can be used
-for two-way data binding. `bind-value` will notify if it is changed either by user input or by script.
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-    <input is="iron-input" bind-value="{{myValue}}">
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-### Custom validators
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-You can use custom validators that implement `Polymer.IronValidatorBehavior` with `<iron-input>`.
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-    <input is="iron-input" validator="my-custom-validator">
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-### Stopping invalid input
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-It may be desirable to only allow users to enter certain characters. You can use the
-`prevent-invalid-input` and `allowed-pattern` attributes together to accomplish this. This feature
-is separate from validation, and `allowed-pattern` does not affect how the input is validated.
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-    <!-- only allow characters that match [0-9] -->
-    <input is="iron-input" prevent-invalid-input allowed-pattern="[0-9]">
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