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node-red/nodes/core/parsers/70-HTML.html

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<script type="text/x-red" data-template-name="html">
<div class="form-row">
<label for="node-input-tag"><i class="fa fa-filter"></i> <span data-i18n="html.label.select"></span></label>
<input type="text" id="node-input-tag" placeholder="h1">
</div>
<div class="form-row">
<label for="node-input-ret"><i class="fa fa-sign-out"></i> <span data-i18n="html.label.output"></span></label>
<select id="node-input-ret" style="width:70%">
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<option value="html" data-i18n="html.output.html"></option>
<option value="text" data-i18n="html.output.text"></option>
<option value="attr" data-i18n="html.output.attr"></option>
<!-- <option value="val">return the value from a form element</option> -->
</select>
</div>
<div class="form-row">
<label for="node-input-as">&nbsp;</label>
<select id="node-input-as" style="width:70%">
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<option value="single" data-i18n="html.format.single"></option>
<option value="multi" data-i18n="html.format.multi"></option>
</select>
</div>
<br/>
<div class="form-row">
<label for="node-input-name"><i class="fa fa-tag"></i> <span data-i18n="common.label.name"></span></label>
<input type="text" id="node-input-name" style="width:70%" data-i18n="[placeholder]common.label.name">
</div>
<div class="form-tips"><span data-i18n="[html]html.tip"></span></div>
</script>
<script type="text/x-red" data-help-name="html">
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<p>Extracts elements from an html document held in <code>msg.payload</code> using a selector.</p>
<h3>Inputs</h3>
<dl class="message-properties">
<dt>payload <span class="property-type">string</span></dt>
<dd>the html string from which to extract elements.</dd>
<dt class="optional">select <span class="property-type">string</span></dt>
<dd>if not configured in the edit panel the selector can be set as a property of msg.</dd>
</dl>
<h3>Output</h3>
<dl class="message-properties">
<dt>payload <span class="property-type">array | strings</span></dt>
<dd>the result can be either a single message with a payload containing an array of the matched elements, or multiple
messages that each contain a matched element.</dd>
</dl>
<h3>Details</h3>
<p>The selector uses <a href="https://github.com/cheeriojs/cheerio/blob/master/Readme.md" target="_blank">Cheerio</a>
which uses the <a href="https://github.com/fb55/CSSselect#user-content-supported-selectors" target="_blank">CSS selector</a> syntax.</p>
</script>
<script type="text/javascript">
RED.nodes.registerType('html',{
category: 'function',
color:"#DEBD5C",
defaults: {
name: {value:""},
tag: {value:""},
ret: {value:"html"},
as: {value:"single"}
},
inputs:1,
outputs:1,
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icon: "parser-html.png",
label: function() {
return this.name||this.tag||"html";
},
labelStyle: function() {
return this.name?"node_label_italic":"";
}
});
</script>