static/asm-mode.js

// Copyright (c) 2012-2017, Matt Godbolt
// All rights reserved.
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are met:
//
//     * Redistributions of source code must retain the above copyright notice,
//       this list of conditions and the following disclaimer.
//     * Redistributions in binary form must reproduce the above copyright
//       notice, this list of conditions and the following disclaimer in the
//       documentation and/or other materials provided with the distribution.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
// AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
// IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
// ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
// LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
// CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
// SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
// CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
// ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
// POSSIBILITY OF SUCH DAMAGE.

define(function (require) {
    "use strict";
    var CodeMirror = require('codemirror');
    CodeMirror.defineMode("asm", function () {
        function tokenString(quote) {
            return function (stream) {
                var escaped = false, next, end = false;
                while ((next = stream.next()) !== null) {
                    if (next == quote && !escaped) {
                        end = true;
                        break;
                    }
                    escaped = !escaped && next == "\\";
                }
                return "string";
            };
        }

        var x86_32regName = /\b[re]?(ax|bx|cx|dx|si|di|bp|ip|sp)\b/;
        var x86_64regName = /r[\d]+[d]?/;
        var x86_xregName = /[xy]mm\d+/;
        var x86_keywords = /PTR|BYTE|[DQ]?WORD|XMMWORD|YMMWORD/;
        var labelName = /\.L\w+/;

        return {
            token: function (stream) {
                if (stream.match(/\/\*([^*]|[*][^\/])*\**\//)) {
                    return "comment";
                }
                if (stream.match(/^.+:$/)) {
                    return "variable-2";
                }
                if (stream.sol() && stream.match(/^\s*\.\w+/)) {
                    return "header";
                }
                if (stream.sol() && stream.match(/^\s+\w+/)) {
                    return "keyword";
                }
                if (stream.eatSpace()) return null;
                if (stream.match(x86_32regName) || stream.match(x86_64regName) || stream.match(x86_xregName)) {
                    return "variable-3";
                }
                if (stream.match(x86_keywords)) return "keyword";
                if (stream.match(labelName)) return "variable-2";
                var ch = stream.next();
                if (ch == '"' || ch == "'") {
                    return tokenString(ch)(stream);
                }
                if (/[\[\]{}\(\),;\:]/.test(ch)) return null;
                if (/[\d$]/.test(ch) || (ch == '-' && stream.peek().match(/[0-9]/))) {
                    stream.eatWhile(/[\w\.]/);
                    return "number";
                }
                if (ch == '%') {
                    stream.eatWhile(/\w+/);
                    return "variable-3";
                }
                if (ch == '#') {
                    stream.eatWhile(/.*/);
                    return "comment";
                }
                stream.eatWhile(/[^\s]*/);
                return "word";
            }
        };
    });

    CodeMirror.defineMIME("text/x-asm", "asm");
});