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 monaco = require('monaco');

    function definition() {
        return {
            // Set defaultToken to invalid to see what you do not tokenize yet
            defaultToken: 'invalid',

            // C# style strings
            escapes: /\\(?:[abfnrtv\\"']|x[0-9A-Fa-f]{1,4}|u[0-9A-Fa-f]{4}|U[0-9A-Fa-f]{8})/,

            registers: /%?\b(r[0-9]+[dbw]?|([er]?([abcd][xhl]|cs|fs|ds|ss|sp|bp|ip|sil?|dil?))|[xyz]mm[0-9]+|sp|fp|lr)\b/,

            intelOperators: /PTR|(D|Q|[XYZ]MM)?WORD/,

            tokenizer: {
                root: [
                    // Error document
                    [/^<.*>$/, {token: 'annotation'}],
                    // Label definition
                    [/^[.a-zA-Z0-9_$?@].*:/, {token: 'type.identifier', next: '@rest'}],
                    // Label definition (ARM style)
                    [/^\s*[|][^|]*[|]/, {token: 'type.identifier', next: '@rest'}],
                    // Label definition (CL style)
                    [/^\s*[.a-zA-Z0-9_$|]*\s*(PROC|ENDP|DB|DD)/, {token: 'type.identifier', next: '@rest'}],
                    // Constant definition
                    [/^[.a-zA-Z0-9_$?@][^=]*=/, {token: 'type.identifier', next: '@rest'}],
                    // opcode
                    [/[.a-zA-Z_][.a-zA-Z_0-9]*/, {token: 'keyword', next: '@rest'}],

                    // whitespace
                    {include: '@whitespace'}
                ],

                rest: [
                    // pop at the beginning of the next line and rematch
                    [/^.*$/, {token: '@rematch', next: '@pop'}],

                    [/@registers/, 'variable.predefined'],
                    [/@intelOperators/, 'annotation'],
                    // brackets
                    [/[{}<>()\[\]]/, '@brackets'],

                    // ARM-style label reference
                    [/[|][^|]*[|]*/, 'type.identifier'],

                    // numbers
                    [/\d*\.\d+([eE][\-+]?\d+)?/, 'number.float'],
                    [/([$]|0[xX])[0-9a-fA-F]+/, 'number.hex'],
                    [/\d+/, 'number'],
                    // ARM-style immediate numbers (which otherwise look like comments)
                    [/#-?\d+/, 'number'],

                    // operators
                    [/[-+,*\/!:&]/, 'operator'],

                    // strings
                    [/"([^"\\]|\\.)*$/, 'string.invalid'],  // non-terminated string
                    [/"/, {token: 'string.quote', bracket: '@open', next: '@string'}],

                    // characters
                    [/'[^\\']'/, 'string'],
                    [/(')(@escapes)(')/, ['string', 'string.escape', 'string']],
                    [/'/, 'string.invalid'],

                    // Assume anything else is a label reference
                    [/%?[.?_$a-zA-Z@][.?_$a-zA-Z0-9@]*/, 'type.identifier'],

                    // whitespace
                    {include: '@whitespace'}
                ],

                comment: [
                    [/[^\/*]+/, 'comment'],
                    [/\/\*/, 'comment', '@push'],    // nested comment
                    ["\\*/", 'comment', '@pop'],
                    [/[\/*]/, 'comment']
                ],

                string: [
                    [/[^\\"]+/, 'string'],
                    [/@escapes/, 'string.escape'],
                    [/\\./, 'string.escape.invalid'],
                    [/"/, {token: 'string.quote', bracket: '@close', next: '@pop'}]
                ],

                whitespace: [
                    [/[ \t\r\n]+/, 'white'],
                    [/\/\*/, 'comment', '@comment'],
                    [/\/\/.*$/, 'comment'],
                    [/[#;\\@].*$/, 'comment']
                ]
            }
        };
    }

    monaco.languages.register({id: 'asm'});
    monaco.languages.setMonarchTokensProvider('asm', definition());
});