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| -rw-r--r-- | brainfuck.html.markdown | 32 |
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diff --git a/brainfuck.html.markdown b/brainfuck.html.markdown index 2b7ce4db..9282381f 100644 --- a/brainfuck.html.markdown +++ b/brainfuck.html.markdown @@ -1,11 +1,12 @@ --- language: brainfuck contributors: - - ["Prajit Ramachandran", "http://prajitr.github.io"] + - ["Prajit Ramachandran", "http://prajitr.github.io/"] + - ["Mathias Bynens", "http://mathiasbynens.be/"] --- -Brainfuck is an extremely minimal programming language (just 8 commands) and -is Turing complete. +Brainfuck (not capitalized except at the start of a sentence) is an extremely +minimal Turing-complete programming language with just 8 commands. ``` Any character not "><+-.,[]" (excluding quotation marks) is ignored. @@ -27,7 +28,7 @@ There are eight commands: [ and ] form a while loop. Obviously, they must be balanced. -Let's look at some basic Brainfuck programs. +Let's look at some basic brainfuck programs. ++++++ [ > ++++++++++ < - ] > +++++ . @@ -45,21 +46,18 @@ print cell #2's value. 65 is 'A' in ASCII, so 'A' is printed to the terminal. , [ > + < - ] > . -This program reads a character from the user input, copies the character into -another cell, and prints out the same character. - -, reads in a character from the user into cell #1. Then we start a loop. Move -to cell #2, increment the value at cell #2, move back to cell #1, and decrement -the value at cell #1. This continues on until cell #1 is 0, and cell #2 holds -cell #1's old value. Because we're on cell #1 at the end of the loop, move to -cell #2, and then print out the value in ASCII. +This program reads a character from the user input and copies the character into +cell #1. Then we start a loop. Move to cell #2, increment the value at cell #2, +move back to cell #1, and decrement the value at cell #1. This continues on +until cell #1 is 0, and cell #2 holds cell #1's old value. Because we're on +cell #1 at the end of the loop, move to cell #2, and then print out the value +in ASCII. Also keep in mind that the spaces are purely for readibility purposes. You -could just as easily write it as +could just as easily write it as: ,[>+<-]>. - Try and figure out what this program does: ,>,< [ > [ >+ >+ << -] >> [- << + >>] <<< -] >> @@ -73,7 +71,7 @@ problem: at the end of the inner loop, cell #2 is zero. To solve this problem, we also increment cell #4, and then recopy cell #4 into cell #2. ``` -And that's Brainfuck. Not that hard, eh? For fun, you can write your own -Brainfuck programs, or you can write a Brainfuck interpreter in another +And that's brainfuck. Not that hard, eh? For fun, you can write your own +brainfuck programs, or you can write a brainfuck interpreter in another language. The interpreter is fairly simple to implement, but if you're a -masochist, trying writing a Brainfuck interpreter... in Brainfuck. +masochist, try writing a brainfuck interpreter… in brainfuck. |