Added support for PlantUML (#3372)

components.json

@@ -1027,6 +1027,11 @@
 			"modify": "php",
 			"owner": "milesj"
 		},
+		"plant-uml": {
+			"title": "PlantUML",
+			"alias": "plantuml",
+			"owner": "RunDevelopment"
+		},
 		"plsql": {
 			"title": "PL/SQL",
 			"require": "sql",

components/prism-plant-uml.js

@@ -0,0 +1,103 @@
+(function (Prism) {
+	var variable = /\$\w+|%[a-z]+%/;
+
+	var arrowAttr = /\[[^[\]]*\]/.source;
+	var arrowDirection = /(?:[drlu]|do|down|le|left|ri|right|up)/.source;
+	var arrowBody = '(?:-+' + arrowDirection + '-+|\\.+' + arrowDirection + '\\.+|-+(?:' + arrowAttr + '-*)?|' + arrowAttr + '-+|\\.+(?:' + arrowAttr + '\\.*)?|' + arrowAttr + '\\.+)';
+	var arrowLeft = /(?:<{1,2}|\/{1,2}|\\{1,2}|<\||[#*^+}xo])/.source;
+	var arrowRight = /(?:>{1,2}|\/{1,2}|\\{1,2}|\|>|[#*^+{xo])/.source;
+	var arrowPrefix = /[[?]?[ox]?/.source;
+	var arrowSuffix = /[ox]?[\]?]?/.source;
+	var arrow =
+		arrowPrefix +
+		'(?:' +
+		arrowBody + arrowRight +
+		'|' +
+		arrowLeft + arrowBody + '(?:' + arrowRight + ')?' +
+		')' +
+		arrowSuffix;
+
+	Prism.languages['plant-uml'] = {
+		'comment': {
+			pattern: /(^[ \t]*)(?:'.*|\/'[\s\S]*?'\/)/m,
+			lookbehind: true,
+			greedy: true
+		},
+		'preprocessor': {
+			pattern: /(^[ \t]*)!.*/m,
+			lookbehind: true,
+			greedy: true,
+			alias: 'property',
+			inside: {
+				'variable': variable
+			}
+		},
+		'delimiter': {
+			pattern: /(^[ \t]*)@(?:end|start)uml\b/m,
+			lookbehind: true,
+			greedy: true,
+			alias: 'punctuation'
+		},
+
+		'arrow': {
+			pattern: RegExp(/(^|[^-.<>?|\\[\]ox])/.source + arrow + /(?![-.<>?|\\\]ox])/.source),
+			lookbehind: true,
+			greedy: true,
+			alias: 'operator',
+			inside: {
+				'expression': {
+					pattern: /(\[)[^[\]]+(?=\])/,
+					lookbehind: true,
+					inside: null // see below
+				},
+				'punctuation': /\[(?=$|\])|^\]/
+			}
+		},
+
+		'string': {
+			pattern: /"[^"]*"/,
+			greedy: true
+		},
+		'text': {
+			pattern: /(\[[ \t]*[\r\n]+(?![\r\n]))[^\]]*(?=\])/,
+			lookbehind: true,
+			greedy: true,
+			alias: 'string'
+		},
+
+		'keyword': [
+			{
+				pattern: /^([ \t]*)(?:abstract\s+class|end\s+(?:box|fork|group|merge|note|ref|split|title)|(?:fork|split)(?:\s+again)?|activate|actor|agent|alt|annotation|artifact|autoactivate|autonumber|backward|binary|boundary|box|break|caption|card|case|circle|class|clock|cloud|collections|component|concise|control|create|critical|database|deactivate|destroy|detach|diamond|else|elseif|end|end[hr]note|endif|endswitch|endwhile|entity|enum|file|folder|footer|frame|group|[hr]?note|header|hexagon|hide|if|interface|label|legend|loop|map|namespace|network|newpage|node|nwdiag|object|opt|package|page|par|participant|person|queue|rectangle|ref|remove|repeat|restore|return|robust|scale|set|show|skinparam|stack|start|state|stop|storage|switch|title|together|usecase|usecase\/|while)(?=\s|$)/m,
+				lookbehind: true,
+				greedy: true
+			},
+			/\b(?:elseif|equals|not|while)(?=\s*\()/,
+			/\b(?:as|is|then)\b/
+		],
+
+		'divider': {
+			pattern: /^==.+==$/m,
+			greedy: true,
+			alias: 'important'
+		},
+
+		'time': {
+			pattern: /@(?:\d+(?:[:/]\d+){2}|[+-]?\d+|:[a-z]\w*(?:[+-]\d+)?)\b/i,
+			greedy: true,
+			alias: 'number'
+		},
+
+		'color': {
+			pattern: /#(?:[a-z_]+|[a-fA-F0-9]+)\b/,
+			alias: 'symbol'
+		},
+		'variable': variable,
+
+		'punctuation': /[:,;()[\]{}]|\.{3}/
+	};
+
+	Prism.languages['plant-uml'].arrow.inside.expression.inside = Prism.languages['plant-uml'];
+
+	Prism.languages['plantuml'] = Prism.languages['plant-uml'];
+
+}(Prism));

examples/prism-plant-uml.html

@@ -0,0 +1,20 @@
+<h2>Full example</h2>
+<pre><code>' Source: https://plantuml.com/sequence-diagram
+@startuml
+participant Participant as Foo
+actor       Actor       as Foo1
+boundary    Boundary    as Foo2
+control     Control     as Foo3
+entity      Entity      as Foo4
+database    Database    as Foo5
+collections Collections as Foo6
+queue       Queue       as Foo7
+Foo -> Foo1 : To actor
+Foo -> Foo2 : To boundary
+Foo -> Foo3 : To control
+Foo -> Foo4 : To entity
+Foo -> Foo5 : To database
+Foo -> Foo6 : To collections
+Foo -> Foo7 : To queue
+@enduml
+</code></pre>

plugins/autoloader/prism-autoloader.js

@@ -227,6 +227,7 @@
 		"objectpascal": "pascal",
 		"px": "pcaxis",
 		"pcode": "peoplecode",
+		"plantuml": "plant-uml",
 		"pq": "powerquery",
 		"mscript": "powerquery",
 		"pbfasm": "purebasic",

plugins/show-language/prism-show-language.js

@@ -187,6 +187,8 @@
 		"php": "PHP",
 		"phpdoc": "PHPDoc",
 		"php-extras": "PHP Extras",
+		"plant-uml": "PlantUML",
+		"plantuml": "PlantUML",
 		"plsql": "PL/SQL",
 		"powerquery": "PowerQuery",
 		"pq": "PowerQuery",