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neetsdkasu/casl2.js

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CodeMirrorでCASL2の色付け・・・
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casl2.js
// CodeMirror mode CASL2
// author: Leonardone @ NEETSDKASU
CodeMirror.defineMode("casl2", function(conf, parserConf) {
"use strict";
const COMET2CMD = "keyword";
const CASL2CMD = "builtin";
const LABEL = "variable";
const REGISTER = "atom";
const INDEX_REG = "atom";
const NUMBER = "number";
const STRING = "string";
const LITERAL_NUMBER = "meta";
const LITERAL_STRING = "string";
const COMMENT = "comment";
const COMMA = null;
const ERROR = "error";
const litNumRegex = /^=(-?[0-9]+|#[0-9A-Z]{4})/;
const numRegex = /^(-?[0-9]+|#[0-9A-Z]{4})/;
const wrongLabelRegex = /^(GR[0-7] |GR[0-7],|GR[0-7]$)/;
const regRegex = /^GR[0-7]/;
const indexRegex = /^GR[1-7]/;
const labelRegex = /^[A-Z][A-Z0-9]{0,7}/;
// no operand
const op0 = ["NOP", "RET"];
const op0Regex = new RegExp("^(" + op0.join("|") +")");
// r
const op1 = ["POP"];
const op1Regex = new RegExp("^(" + op1.join("|") +")");
// adr,[x]
const op2 = [
"CALL",
"JMI",
"JNZ",
"JOV",
"JPL",
"JUMP",
"JZE",
"PUSH",
"SVC",
];
const op2Regex = new RegExp("^(" + op2.join("|") +")");
// r,adr,[x]
const op3 = [
"LAD",
"SLA",
"SLL",
"SRA",
"SRL",
"ST",
];
const op3Regex = new RegExp("^(" + op3.join("|") +")");
// r1,r2
// r,adr,[x]
const op23 = [
"ADDA",
"ADDL",
"AND",
"CPA",
"CPL",
"LD",
"OR",
"SUBA",
"SUBL",
"XOR",
];
const op23Regex = new RegExp("^(" + op23.join("|") +")");
CodeMirror.registerHelper("hintWords", "casl2",
["GR0", "GR1", "GR2", "GR3", "GR4", "GR5", "GR6", "GR7",
"START", "RPUSH", "RPOP", "END", "OUT", "IN", "DS", "DC"
].concat(op0).concat(op1).concat(op2).concat(op3).concat(op23)
);
const afterSpaceAnyTokenRegex = /^ +[^ ]/;
const afterCommaAnyTokenRegex = /^,./;
function takeString(stream) {
do {
if (!stream.skipTo("'")) {
return false;
}
} while (stream.match("''"));
return stream.match("'");
}
function token(stream, state) {
if (stream.sol()) {
state.tokenPos = 0;
if (stream.eol()) {
return null;
}
if (stream.peek() === ";") {
stream.skipToEnd();
return COMMENT;
}
if (stream.match(wrongLabelRegex)) {
stream.skipToEnd();
return ERROR;
}
if (stream.match(labelRegex)) {
if (stream.peek() === ' ') {
state.tokenPos = 6;
state.nextPos = 2;
return LABEL;
}
} else if (stream.eatSpace()) {
state.tokenPos = stream.eol() ? 0 : 1;
return null;
}
stream.skipToEnd();
return ERROR;
}
switch (state.tokenPos) {
case 1: {
if (stream.peek() === ';') {
state.tokenPos = 0;
stream.skipToEnd();
return COMMENT;
}
// non break;
}
case 2: {
if (stream.match("START")) {
if (stream.peek() === ' ' || stream.eol()) {
state.tokenPos = stream.eol() ? 0 : 5;
state.nextPos = stream.eol() ? 0 : 10000;
return CASL2CMD;
}
} else if (stream.match(/^(END|RPOP|RPUSH)/)) {
if (stream.peek() === ' ' || stream.eol()) {
state.tokenPos = stream.eol() ? 0 : 5;
state.nextPos = stream.eol() ? 0 : 9;
return CASL2CMD;
}
} else if (stream.match(/^(IN|OUT)/)) {
if (stream.match(afterSpaceAnyTokenRegex, false)) {
state.tokenPos = 6;
state.nextPos = 20000;
return CASL2CMD;
}
} else if (stream.match("DS")) {
if (stream.match(afterSpaceAnyTokenRegex, false)) {
state.tokenPos = 6;
state.nextPos = 30000;
return CASL2CMD;
}
} else if (stream.match("DC")) {
if (stream.match(afterSpaceAnyTokenRegex, false)) {
state.tokenPos = 6;
state.nextPos = 40000;
return CASL2CMD;
}
} else if (stream.match(op0Regex)) {
if (stream.peek() === ' ' || stream.eol()) {
state.tokenPos = stream.eol() ? 0 : 5;
state.nextPos = stream.eol() ? 0 : 9;
return COMET2CMD;
}
} else if (stream.match(op1Regex)) {
if (stream.match(afterSpaceAnyTokenRegex, false)) {
state.tokenPos = 6;
state.nextPos = 100;
return COMET2CMD;
}
} else if (stream.match(op2Regex)) {
if (stream.match(afterSpaceAnyTokenRegex, false)) {
state.tokenPos = 6;
state.nextPos = 200;
return COMET2CMD;
}
} else if (stream.match(op3Regex)) {
if (stream.match(afterSpaceAnyTokenRegex, false)) {
state.tokenPos = 6;
state.nextPos = 300;
return COMET2CMD;
}
} else if (stream.match(op23Regex)) {
if (stream.match(afterSpaceAnyTokenRegex, false)) {
state.tokenPos = 6;
state.nextPos = 2300;
return COMET2CMD;
}
}
break;
}
case 5: {
if (stream.eatSpace()) {
state.tokenPos = stream.eol() ? 0 : state.nextPos;
state.nextPos = 0;
return null;
}
break;
}
case 6: {
if (stream.eatSpace()) {
state.tokenPos = state.nextPos;
state.nextPos = 0;
return null;
}
break;
}
case 7:
if (stream.match(",")) {
if (!stream.eol() && stream.peek() !== ' ') {
state.tokenPos = state.nextPos;
state.nextPos = 0;
return COMMA;
}
}
break;
case 8: {
state.tokenPos = 0;
stream.skipToEnd();
return COMMENT;
}
case 9: {
if (stream.peek() === ";") {
state.tokenPos = 0;
stream.skipToEnd();
return COMMENT;
}
break;
}
case 100: {
if (stream.match(regRegex)) {
if (stream.peek() === ' ' || stream.eol()) {
state.tokenPos = stream.eol() ? 0 : 5;
state.nextPos = stream.eol() ? 0 : 8;
return REGISTER;
}
}
break;
}
case 200: {
if (!stream.match(wrongLabelRegex)) {
let ret = "";
if (stream.match(litNumRegex)) {
ret = LITERAL_NUMBER;
} else if (stream.match("='")) {
if (takeString(stream)) {
ret = LITERAL_STRING;
}
} else if (stream.match(numRegex)) {
ret = NUMBER;
} else if (stream.match(labelRegex)) {
ret = LABEL;
}
if (ret !== "") {
if (stream.match(afterCommaAnyTokenRegex, false)) {
state.tokenPos = 7;
state.nextPos = 201;
return ret;
} else if (stream.peek() === ' ' || stream.eol()) {
state.tokenPos = stream.eol() ? 0 : 5;
state.nextPos = stream.eol() ? 0 : 8;
return ret;
}
}
}
break;
}
case 201: {
if (stream.match(indexRegex)) {
if (stream.peek() === ' ' || stream.eol()) {
state.tokenPos = stream.eol() ? 0 : 5;
state.nextPos = stream.eol() ? 0 : 8;
return INDEX_REG;
}
}
break;
}
case 300: {
if (stream.match(regRegex)) {
if (stream.match(afterCommaAnyTokenRegex, false)) {
state.tokenPos = 7;
state.nextPos = 200;
return REGISTER;
}
}
break;
}
case 2300: {
if (stream.match(regRegex)) {
if (stream.match(afterCommaAnyTokenRegex, false)) {
state.tokenPos = 7;
state.nextPos = 2301;
return REGISTER;
}
}
break;
}
case 2301: {
if (stream.match(regRegex)) {
if (stream.peek() === ' ' || stream.eol()) {
state.tokenPos = stream.eol() ? 0 : 5;
state.nextPos = stream.eol() ? 0 : 8;
return REGISTER;
}
} else {
state.tokenPos = 200;
return token(stream, state);
}
break;
}
case 10000: {
if (stream.match(";")) {
state.tokenPos = 0;
stream.skipToEnd();
return COMMENT;
}
if (!stream.match(wrongLabelRegex)) {
if (stream.match(labelRegex)) {
if (stream.peek() === ' ' || stream.eol()) {
state.tokenPos = stream.eol() ? 0 : 5;
state.nextPos = stream.eol() ? 0 : 8;
return LABEL;
}
}
}
break;
}
case 20000: {
if (!stream.match(wrongLabelRegex)) {
if (stream.match(labelRegex)) {
if (stream.match(afterCommaAnyTokenRegex, false)) {
state.tokenPos = 7;
state.nextPos = 20001;
return LABEL;
}
}
}
break;
}
case 20001: {
if (!stream.match(wrongLabelRegex)) {
if (stream.match(labelRegex)) {
if (stream.peek() === ' ' || stream.eol()) {
state.tokenPos = stream.eol() ? 0 : 5;
state.nextPos = stream.eol() ? 0 : 8;
return LABEL;
}
}
}
break;
}
case 30000: {
if (stream.match(/^[0-9]+/)) {
if (stream.peek() === ' ' || stream.eol()) {
state.tokenPos = stream.eol() ? 0 : 5;
state.nextPos = stream.eol() ? 0 : 8;
return NUMBER;
}
}
break;
}
case 40000: {
let ret = "";
if (stream.match(numRegex)) {
ret = NUMBER;
} else if (stream.match("'")) {
if (takeString(stream)) {
ret = STRING;
}
} else if (!stream.match(wrongLabelRegex)) {
if (stream.match(labelRegex)) {
ret = LABEL;
}
}
if (ret !== "") {
if (stream.peek() === ",") {
state.tokenPos = 7;
state.nextPos = 40000;
return ret;
} else if (stream.peek() === ' ' || stream.eol()) {
state.tokenPos = stream.eol() ? 0 : 5;
state.nextPos = stream.eol() ? 0 : 8;
return ret;
}
}
break;
}
}
state.tokenPos = 0;
state.nextPos = 0;
stream.skipToEnd();
return ERROR;
}
const mode = {
startState: function() { return {
tokenPos: 0,
nextPos: 0,
}},
token: token,
};
return mode;
});
CodeMirror.defineMIME("text/x-casl2", "casl2");
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