Normalize Whitespace Plugin: Add configuration via attributes (#3467)

Co-authored-by: Michael Schmidt <msrd0000@gmail.com>

plugins/normalize-whitespace/demo.html

@@ -17,6 +17,21 @@
 
 </pre>
 
+<pre data-break-lines="50">
+
+	<code>
+
+
+		var there_is_a_very_very_very_very_long_line_it_can_break_it_for_you = true;
+
+		if (there_is_a_very_very_very_very_long_line_it_can_break_it_for_you === true) {
+		};
+
+
+	</code>
+
+</pre>
+
 </section>
 
 <script src="prism.js"></script>

plugins/normalize-whitespace/index.html

@@ -57,7 +57,7 @@ Prism.plugins.NormalizeWhitespace.setDefaults({
 });
 </code></pre>
 
-	<p>The following settings are available:</p>
+	<p>The following settings are available and can be set via the <code>data-[setting]</code> attribute on the <code>&lt;pre&lt;</code> element:</p>
 
 	<dl>
 		<dt>remove-trailing</dt>
@@ -103,6 +103,16 @@ Prism.plugins.NormalizeWhitespace.setDefaults({
 		};
 
 
+		var
+		there_is_a_very_very_very_very_long_line_it_can_break_it_for_you
+		 = true;
+		
+		if 
+		(there_is_a_very_very_very_very_long_line_it_can_break_it_for_you
+		 === true) {
+		};
+
+
 	</code>
 
 </pre>

plugins/normalize-whitespace/prism-normalize-whitespace.js

@@ -33,6 +33,18 @@
 		return str.length + res;
 	}
 
+	var settingsConfig = {
+		'remove-trailing': 'boolean',
+		'remove-indent': 'boolean',
+		'left-trim': 'boolean',
+		'right-trim': 'boolean',
+		'break-lines': 'number',
+		'indent': 'number',
+		'remove-initial-line-feed': 'boolean',
+		'tabs-to-spaces': 'number',
+		'spaces-to-tabs': 'number',
+	};
+
 	NormalizeWhitespace.prototype = {
 		setDefaults: function (defaults) {
 			this.defaults = assign(this.defaults, defaults);
@@ -161,6 +173,25 @@
 			return;
 		}
 
+		if (env.settings == null) { env.settings = {}; }
+
+		// Read settings from 'data-' attributes
+		for (var key in settingsConfig) {
+			if (Object.hasOwnProperty.call(settingsConfig, key)) {
+				var settingType = settingsConfig[key];
+				if (pre.hasAttribute('data-' + key)) {
+					try {
+						var value = JSON.parse(pre.getAttribute('data-' + key) || 'true');
+						if (typeof value === settingType) {
+							env.settings[key] = value;
+						}
+					} catch (_error) {
+						// ignore error
+					}
+				}
+			}
+		}
+
 		var children = pre.childNodes;
 		var before = '';
 		var after = '';

plugins/normalize-whitespace/prism-normalize-whitespace.min.js

@@ -1 +1 @@
-!function(){if("undefined"!=typeof Prism){var e=Object.assign||function(e,n){for(var t in n)n.hasOwnProperty(t)&&(e[t]=n[t]);return e};n.prototype={setDefaults:function(n){this.defaults=e(this.defaults,n)},normalize:function(n,t){for(var r in t=e(this.defaults,t)){var i=r.replace(/-(\w)/g,(function(e,n){return n.toUpperCase()}));"normalize"!==r&&"setDefaults"!==i&&t[r]&&this[i]&&(n=this[i].call(this,n,t[r]))}return n},leftTrim:function(e){return e.replace(/^\s+/,"")},rightTrim:function(e){return e.replace(/\s+$/,"")},tabsToSpaces:function(e,n){return n=0|n||4,e.replace(/\t/g,new Array(++n).join(" "))},spacesToTabs:function(e,n){return n=0|n||4,e.replace(RegExp(" {"+n+"}","g"),"\t")},removeTrailing:function(e){return e.replace(/\s*?$/gm,"")},removeInitialLineFeed:function(e){return e.replace(/^(?:\r?\n|\r)/,"")},removeIndent:function(e){var n=e.match(/^[^\S\n\r]*(?=\S)/gm);return n&&n[0].length?(n.sort((function(e,n){return e.length-n.length})),n[0].length?e.replace(RegExp("^"+n[0],"gm"),""):e):e},indent:function(e,n){return e.replace(/^[^\S\n\r]*(?=\S)/gm,new Array(++n).join("\t")+"$&")},breakLines:function(e,n){n=!0===n?80:0|n||80;for(var r=e.split("\n"),i=0;i<r.length;++i)if(!(t(r[i])<=n)){for(var o=r[i].split(/(\s+)/g),a=0,l=0;l<o.length;++l){var s=t(o[l]);(a+=s)>n&&(o[l]="\n"+o[l],a=s)}r[i]=o.join("")}return r.join("\n")}},"undefined"!=typeof module&&module.exports&&(module.exports=n),Prism.plugins.NormalizeWhitespace=new n({"remove-trailing":!0,"remove-indent":!0,"left-trim":!0,"right-trim":!0}),Prism.hooks.add("before-sanity-check",(function(e){var n=Prism.plugins.NormalizeWhitespace;if((!e.settings||!1!==e.settings["whitespace-normalization"])&&Prism.util.isActive(e.element,"whitespace-normalization",!0))if(e.element&&e.element.parentNode||!e.code){var t=e.element.parentNode;if(e.code&&t&&"pre"===t.nodeName.toLowerCase()){for(var r=t.childNodes,i="",o="",a=!1,l=0;l<r.length;++l){var s=r[l];s==e.element?a=!0:"#text"===s.nodeName&&(a?o+=s.nodeValue:i+=s.nodeValue,t.removeChild(s),--l)}if(e.element.children.length&&Prism.plugins.KeepMarkup){var c=i+e.element.innerHTML+o;e.element.innerHTML=n.normalize(c,e.settings),e.code=e.element.textContent}else e.code=i+e.code+o,e.code=n.normalize(e.code,e.settings)}}else e.code=n.normalize(e.code,e.settings)}))}function n(n){this.defaults=e({},n)}function t(e){for(var n=0,t=0;t<e.length;++t)e.charCodeAt(t)=="\t".charCodeAt(0)&&(n+=3);return e.length+n}}();
+!function(){if("undefined"!=typeof Prism){var e=Object.assign||function(e,t){for(var n in t)t.hasOwnProperty(n)&&(e[n]=t[n]);return e},t={"remove-trailing":"boolean","remove-indent":"boolean","left-trim":"boolean","right-trim":"boolean","break-lines":"number",indent:"number","remove-initial-line-feed":"boolean","tabs-to-spaces":"number","spaces-to-tabs":"number"};n.prototype={setDefaults:function(t){this.defaults=e(this.defaults,t)},normalize:function(t,n){for(var r in n=e(this.defaults,n)){var i=r.replace(/-(\w)/g,(function(e,t){return t.toUpperCase()}));"normalize"!==r&&"setDefaults"!==i&&n[r]&&this[i]&&(t=this[i].call(this,t,n[r]))}return t},leftTrim:function(e){return e.replace(/^\s+/,"")},rightTrim:function(e){return e.replace(/\s+$/,"")},tabsToSpaces:function(e,t){return t=0|t||4,e.replace(/\t/g,new Array(++t).join(" "))},spacesToTabs:function(e,t){return t=0|t||4,e.replace(RegExp(" {"+t+"}","g"),"\t")},removeTrailing:function(e){return e.replace(/\s*?$/gm,"")},removeInitialLineFeed:function(e){return e.replace(/^(?:\r?\n|\r)/,"")},removeIndent:function(e){var t=e.match(/^[^\S\n\r]*(?=\S)/gm);return t&&t[0].length?(t.sort((function(e,t){return e.length-t.length})),t[0].length?e.replace(RegExp("^"+t[0],"gm"),""):e):e},indent:function(e,t){return e.replace(/^[^\S\n\r]*(?=\S)/gm,new Array(++t).join("\t")+"$&")},breakLines:function(e,t){t=!0===t?80:0|t||80;for(var n=e.split("\n"),i=0;i<n.length;++i)if(!(r(n[i])<=t)){for(var o=n[i].split(/(\s+)/g),a=0,l=0;l<o.length;++l){var s=r(o[l]);(a+=s)>t&&(o[l]="\n"+o[l],a=s)}n[i]=o.join("")}return n.join("\n")}},"undefined"!=typeof module&&module.exports&&(module.exports=n),Prism.plugins.NormalizeWhitespace=new n({"remove-trailing":!0,"remove-indent":!0,"left-trim":!0,"right-trim":!0}),Prism.hooks.add("before-sanity-check",(function(e){var n=Prism.plugins.NormalizeWhitespace;if((!e.settings||!1!==e.settings["whitespace-normalization"])&&Prism.util.isActive(e.element,"whitespace-normalization",!0))if(e.element&&e.element.parentNode||!e.code){var r=e.element.parentNode;if(e.code&&r&&"pre"===r.nodeName.toLowerCase()){for(var i in null==e.settings&&(e.settings={}),t)if(Object.hasOwnProperty.call(t,i)){var o=t[i];if(r.hasAttribute("data-"+i))try{var a=JSON.parse(r.getAttribute("data-"+i)||"true");typeof a===o&&(e.settings[i]=a)}catch(e){}}for(var l=r.childNodes,s="",c="",u=!1,m=0;m<l.length;++m){var f=l[m];f==e.element?u=!0:"#text"===f.nodeName&&(u?c+=f.nodeValue:s+=f.nodeValue,r.removeChild(f),--m)}if(e.element.children.length&&Prism.plugins.KeepMarkup){var d=s+e.element.innerHTML+c;e.element.innerHTML=n.normalize(d,e.settings),e.code=e.element.textContent}else e.code=s+e.code+c,e.code=n.normalize(e.code,e.settings)}}else e.code=n.normalize(e.code,e.settings)}))}function n(t){this.defaults=e({},t)}function r(e){for(var t=0,n=0;n<e.length;++n)e.charCodeAt(n)=="\t".charCodeAt(0)&&(t+=3);return e.length+t}}();