Added support for ChaiScript (#2706)

components.json

@@ -238,6 +238,11 @@
 			"require": "c",
 			"owner": "zeitgeist87"
 		},
+		"chaiscript": {
+			"title": "ChaiScript",
+			"require": ["clike", "cpp"],
+			"owner": "RunDevelopment"
+		},
 		"cil": {
 			"title": "CIL",
 			"owner": "sbrl"

components/prism-chaiscript.js

@@ -0,0 +1,60 @@
+Prism.languages.chaiscript = Prism.languages.extend('clike', {
+	'string': {
+		pattern: /(^|[^\\])'(?:[^'\\]|\\[\s\S])*'/,
+		lookbehind: true,
+		greedy: true
+	},
+	'class-name': [
+		{
+			// e.g. class Rectangle { ... }
+			pattern: /(\bclass\s+)\w+/,
+			lookbehind: true
+		},
+		{
+			// e.g. attr Rectangle::height, def Rectangle::area() { ... }
+			pattern: /(\b(?:attr|def)\s+)\w+(?=\s*::)/,
+			lookbehind: true
+		}
+	],
+	'keyword': /\b(?:attr|auto|break|case|catch|class|continue|def|default|else|finally|for|fun|global|if|return|switch|this|try|var|while)\b/,
+	'number': [
+		Prism.languages.cpp.number,
+		/\b(?:Infinity|NaN)\b/
+	],
+	'operator': />>=?|<<=?|\|\||&&|:[:=]?|--|\+\+|[=!<>+\-*/%|&^]=?|[?~]|`[^`\r\n]{1,4}`/,
+});
+
+Prism.languages.insertBefore('chaiscript', 'operator', {
+	'parameter-type': {
+		// e.g. def foo(int x, Vector y) {...}
+		pattern: /([,(]\s*)\w+(?=\s+\w)/,
+		lookbehind: true,
+		alias: 'class-name'
+	},
+});
+
+Prism.languages.insertBefore('chaiscript', 'string', {
+	'string-interpolation': {
+		pattern: /(^|[^\\])"(?:[^"$\\]|\\[\s\S]|\$(?!\{)|\$\{(?:[^{}]|\{(?:[^{}]|\{[^{}]*\})*\})*\})*"/,
+		lookbehind: true,
+		greedy: true,
+		inside: {
+			'interpolation': {
+				pattern: /((?:^|[^\\])(?:\\{2})*)\$\{(?:[^{}]|\{(?:[^{}]|\{[^{}]*\})*\})*\}/,
+				lookbehind: true,
+				inside: {
+					'interpolation-expression': {
+						pattern: /(^\$\{)[\s\S]+(?=\}$)/,
+						lookbehind: true,
+						inside: Prism.languages.chaiscript
+					},
+					'interpolation-punctuation': {
+						pattern: /^\$\{|\}$/,
+						alias: 'punctuation'
+					}
+				}
+			},
+			'string': /[\s\S]+/
+		}
+	},
+});

examples/prism-chaiscript.html

@@ -0,0 +1,56 @@
+<h2>Full example</h2>
+<pre><code>// http://chaiscript.com/examples.html#ChaiScript_Language_Examples
+// Source: https://gist.github.com/lefticus/cf058f2927fef68d58e0#file-chaiscript_overview-chai
+
+// ChaiScript supports the normal kind of control blocks you've come to expect from
+// C++ and JavaScript
+
+
+if (5 > 2) {
+  print("Yup, 5 > 2");
+} else if (2 > 5) {
+  // never gonna happen
+} else {
+  // really not going to happen
+}
+
+var x = true;
+
+while (x)
+{
+  print("x was true")
+  x = false;
+}
+
+for (var i = 1; i &lt; 10; ++i)
+{
+  print(i); // prints 1 through 9
+}
+
+
+// function definition
+
+def myFunc(x) {
+  print(x);
+}
+
+// function definition with function guards
+def myFunc(x) : x > 2 && x &lt; 5 {
+  print(to_string(x) + " is between 2 and 5")
+}
+
+def myFunc(x) : x >= 5 {
+  print(t_string(x) + " is greater than or equal to 5")
+}
+
+myFunc(3)
+
+// ChaiScript also supports in string evaluation, which C++ does not
+
+print("${3 + 5} is 8");
+
+// And dynamic code evaluation
+
+var value = eval("4 + 2 + 12");
+
+// value is equal to 18</code></pre>

plugins/autoloader/prism-autoloader.js

@@ -25,6 +25,10 @@
 		"c": "clike",
 		"csharp": "clike",
 		"cpp": "c",
+		"chaiscript": [
+			"clike",
+			"cpp"
+		],
 		"coffeescript": "javascript",
 		"crystal": "ruby",
 		"css-extras": "css",

tests/languages/chaiscript/boolean_feature.test

@@ -0,0 +1,9 @@
+true
+false
+
+----------------------------------------------------
+
+[
+	["boolean", "true"],
+	["boolean", "false"]
+]

tests/languages/chaiscript/comment_feature.test

@@ -0,0 +1,16 @@
+// comment
+/*
+ comment
+*/
+
+/*
+ comment
+
+----------------------------------------------------
+
+[
+	["comment", "// comment"],
+	["comment", "/*\r\n comment\r\n*/"],
+
+	["comment", "/*\r\n comment"]
+]

tests/languages/chaiscript/function_feature.test

@@ -0,0 +1,190 @@
+attr Rectangle::height
+attr Rectangle::width
+def Rectangle::Rectangle() { this.height = 10; this.width = 20 }
+def Rectangle::area() { this.height * this.width }
+var rect = Rectangle()
+rect.height = 30
+print(rect.area())
+
+class Rectangle {
+  attr height
+  attr width
+  def Rectangle() { this.height = 10; this.width = 20 }
+  def area() { this.height * this.width }
+}
+var rect = Rectangle()
+rect.height = 30
+print(rect.area())
+
+def update(dt) {
+  x = x + 20.0f * dt
+}
+
+def foo(int x, Vector y) {}
+
+----------------------------------------------------
+
+[
+	["keyword", "attr"],
+	["class-name", "Rectangle"],
+	["operator", "::"],
+	"height\r\n",
+
+	["keyword", "attr"],
+	["class-name", "Rectangle"],
+	["operator", "::"],
+	"width\r\n",
+
+	["keyword", "def"],
+	["class-name", "Rectangle"],
+	["operator", "::"],
+	["function", "Rectangle"],
+	["punctuation", "("],
+	["punctuation", ")"],
+	["punctuation", "{"],
+	["keyword", "this"],
+	["punctuation", "."],
+	"height ",
+	["operator", "="],
+	["number", "10"],
+	["punctuation", ";"],
+	["keyword", "this"],
+	["punctuation", "."],
+	"width ",
+	["operator", "="],
+	["number", "20"],
+	["punctuation", "}"],
+
+	["keyword", "def"],
+	["class-name", "Rectangle"],
+	["operator", "::"],
+	["function", "area"],
+	["punctuation", "("],
+	["punctuation", ")"],
+	["punctuation", "{"],
+	["keyword", "this"],
+	["punctuation", "."],
+	"height ",
+	["operator", "*"],
+	["keyword", "this"],
+	["punctuation", "."],
+	"width ",
+	["punctuation", "}"],
+
+	["keyword", "var"],
+	" rect ",
+	["operator", "="],
+	["function", "Rectangle"],
+	["punctuation", "("],
+	["punctuation", ")"],
+
+	"\r\nrect",
+	["punctuation", "."],
+	"height ",
+	["operator", "="],
+	["number", "30"],
+
+	["function", "print"],
+	["punctuation", "("],
+	"rect",
+	["punctuation", "."],
+	["function", "area"],
+	["punctuation", "("],
+	["punctuation", ")"],
+	["punctuation", ")"],
+
+	["keyword", "class"],
+	["class-name", "Rectangle"],
+	["punctuation", "{"],
+
+	["keyword", "attr"],
+	" height\r\n  ",
+
+	["keyword", "attr"],
+	" width\r\n  ",
+
+	["keyword", "def"],
+	["function", "Rectangle"],
+	["punctuation", "("],
+	["punctuation", ")"],
+	["punctuation", "{"],
+	["keyword", "this"],
+	["punctuation", "."],
+	"height ",
+	["operator", "="],
+	["number", "10"],
+	["punctuation", ";"],
+	["keyword", "this"],
+	["punctuation", "."],
+	"width ",
+	["operator", "="],
+	["number", "20"],
+	["punctuation", "}"],
+
+	["keyword", "def"],
+	["function", "area"],
+	["punctuation", "("],
+	["punctuation", ")"],
+	["punctuation", "{"],
+	["keyword", "this"],
+	["punctuation", "."],
+	"height ",
+	["operator", "*"],
+	["keyword", "this"],
+	["punctuation", "."],
+	"width ",
+	["punctuation", "}"],
+
+	["punctuation", "}"],
+
+	["keyword", "var"],
+	" rect ",
+	["operator", "="],
+	["function", "Rectangle"],
+	["punctuation", "("],
+	["punctuation", ")"],
+
+	"\r\nrect",
+	["punctuation", "."],
+	"height ",
+	["operator", "="],
+	["number", "30"],
+
+	["function", "print"],
+	["punctuation", "("],
+	"rect",
+	["punctuation", "."],
+	["function", "area"],
+	["punctuation", "("],
+	["punctuation", ")"],
+	["punctuation", ")"],
+
+	["keyword", "def"],
+	["function", "update"],
+	["punctuation", "("],
+	"dt",
+	["punctuation", ")"],
+	["punctuation", "{"],
+
+	"\r\n  x ",
+	["operator", "="],
+	" x ",
+	["operator", "+"],
+	["number", "20.0f"],
+	["operator", "*"],
+	" dt\r\n",
+
+	["punctuation", "}"],
+
+	["keyword", "def"],
+	["function", "foo"],
+	["punctuation", "("],
+	["parameter-type", "int"],
+	" x",
+	["punctuation", ","],
+	["parameter-type", "Vector"],
+	" y",
+	["punctuation", ")"],
+	["punctuation", "{"],
+	["punctuation", "}"]
+]