75 lines
1.5 KiB
JavaScript
75 lines
1.5 KiB
JavaScript
'use strict';
|
|
|
|
Object.defineProperty(exports, '__esModule', { value: true });
|
|
|
|
var reserve = "><+-.,[]".split("");
|
|
/*
|
|
comments can be either:
|
|
placed behind lines
|
|
|
|
+++ this is a comment
|
|
|
|
where reserved characters cannot be used
|
|
or in a loop
|
|
[
|
|
this is ok to use [ ] and stuff
|
|
]
|
|
or preceded by #
|
|
*/
|
|
const brainfuck = {
|
|
name: "brainfuck",
|
|
startState: function() {
|
|
return {
|
|
commentLine: false,
|
|
left: 0,
|
|
right: 0,
|
|
commentLoop: false
|
|
}
|
|
},
|
|
token: function(stream, state) {
|
|
if (stream.eatSpace()) return null
|
|
if(stream.sol()){
|
|
state.commentLine = false;
|
|
}
|
|
var ch = stream.next().toString();
|
|
if(reserve.indexOf(ch) !== -1){
|
|
if(state.commentLine === true){
|
|
if(stream.eol()){
|
|
state.commentLine = false;
|
|
}
|
|
return "comment";
|
|
}
|
|
if(ch === "]" || ch === "["){
|
|
if(ch === "["){
|
|
state.left++;
|
|
}
|
|
else {
|
|
state.right++;
|
|
}
|
|
return "bracket";
|
|
}
|
|
else if(ch === "+" || ch === "-"){
|
|
return "keyword";
|
|
}
|
|
else if(ch === "<" || ch === ">"){
|
|
return "atom";
|
|
}
|
|
else if(ch === "." || ch === ","){
|
|
return "def";
|
|
}
|
|
}
|
|
else {
|
|
state.commentLine = true;
|
|
if(stream.eol()){
|
|
state.commentLine = false;
|
|
}
|
|
return "comment";
|
|
}
|
|
if(stream.eol()){
|
|
state.commentLine = false;
|
|
}
|
|
}
|
|
};
|
|
|
|
exports.brainfuck = brainfuck;
|