Merge pull request #611 from Golmote/prism-brainfuck

Add support for Brainfuck

components.js

@@ -84,6 +84,10 @@ var components = {
 			"require": "clike",
 			"owner": "zeitgeist87"
 		},
+		"brainfuck": {
+			"title": "Brainfuck",
+			"owner": "Golmote"
+		},
 		"c": {
 			"title": "C",
 			"require": "clike",

components/prism-brainfuck.js

@@ -0,0 +1,20 @@
+Prism.languages.brainfuck = {
+	'pointer': {
+		pattern: /<|>/,
+		alias: 'keyword'
+	},
+	'increment': {
+		pattern: /\+/,
+		alias: 'inserted'
+	},
+	'decrement': {
+		pattern: /-/,
+		alias: 'deleted'
+	},
+	'branching': {
+		pattern: /\[|\]/,
+		alias: 'important'
+	},
+	'operator': /[.,]/,
+	'comment': /\S+/
+};

examples/prism-brainfuck.html

@@ -0,0 +1,40 @@
+<h1>Brainfuck</h1>
+<p>To use this language, use the class "language-brainfuck".</p>
+
+<h2>Full example</h2>
+<pre><code>+++++ +++               Set Cell #0 to 8
+[
+    >++++               Add 4 to Cell #1; this will always set Cell #1 to 4
+    [                   as the cell will be cleared by the loop
+        >++             Add 2 to Cell #2
+        >+++            Add 3 to Cell #3
+        >+++            Add 3 to Cell #4
+        >+              Add 1 to Cell #5
+        <<<<-           Decrement the loop counter in Cell #1
+    ]                   Loop till Cell #1 is zero; number of iterations is 4
+    >+                  Add 1 to Cell #2
+    >+                  Add 1 to Cell #3
+    >-                  Subtract 1 from Cell #4
+    >>+                 Add 1 to Cell #6
+    [<]                 Move back to the first zero cell you find; this will
+                        be Cell #1 which was cleared by the previous loop
+    <-                  Decrement the loop Counter in Cell #0
+]                       Loop till Cell #0 is zero; number of iterations is 8
+
+The result of this is:
+Cell No :   0   1   2   3   4   5   6
+Contents:   0   0  72 104  88  32   8
+Pointer :   ^
+
+>>.                     Cell #2 has value 72 which is 'H'
+>---.                   Subtract 3 from Cell #3 to get 101 which is 'e'
++++++++..+++.           Likewise for 'llo' from Cell #3
+>>.                     Cell #5 is 32 for the space
+<-.                     Subtract 1 from Cell #4 for 87 to give a 'W'
+<.                      Cell #3 was set to 'o' from the end of 'Hello'
++++.------.--------.    Cell #3 for 'rl' and 'd'
+>>+.                    Add 1 to Cell #5 gives us an exclamation point
+>++.                    And finally a newline from Cell #6</code></pre>
+
+<h2>One-line example</h2>
+<pre><code>++++++++[>++++[>++>+++>+++>+<<<<-]>+>+>->>+[<]<-]>>.>---.+++++++..+++.>>.<-.<.+++.------.--------.>>+.>++.</code></pre>