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lang-bataribasic stream parser

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This commit is contained in:
Fred Sauer
2026-02-15 13:40:58 -08:00
parent 6d22653ba1
commit cf4dec0e8f
2 changed files with 99 additions and 96 deletions
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96
src/codemirror/bataribasic.js
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// CodeMirror, copyright (c) by Marijn Haverbeke and others
// Distributed under an MIT license: http://codemirror.net/LICENSE
(function(mod) {
if (typeof exports == "object" && typeof module == "object") // CommonJS
mod(require("../../lib/codemirror"));
else if (typeof define == "function" && define.amd) // AMD
define(["../../lib/codemirror"], mod);
else // Plain browser env
mod(CodeMirror);
})(function(CodeMirror) {
"use strict";
// bataribasic DASM syntax
CodeMirror.defineMode('bataribasic', function(_config, parserConfig) {
var keywords1, keywords2;
var directives_list = [
'rem','if','else','then','goto',
//'end',
'includesfile','include','inline','function',
'bank','sdata','data',
'on','off',
'up','down',
'const','dim','for','next','gosub',
'pfpixel','pfhline','pfclear','pfvline','pfscroll',
'drawscreen','asm','pop','set','return','reboot','vblank',
'pfcolors','pfheights','playfield','lives',
'player0','player1','player2','player3','player4','player5',
'player0color','player1color',
'let',
"switchreset","switchselect","switchleftb","switchrightb","switchbw",
"joy0up","joy0down","joy0left","joy0right","joy1up","joy1down","joy1left","joy1right","joy0fire","joy1fire",
"size","2k","8k","8kSC","16k","16kSC","32k","32kSC","4k",
"thisbank","otherbank","flip",
"collision","missile0","missile1","ball",
"stackpull","rand","score","scorec","Areg",
"smartbranching","romsize","optimization","speed","size",
"noinlinedata","inlinerand","none","kernal","kernel_options",
"readpaddle","player1colors","playercolors","no_blank_lines",
"kernel","multisprite","multisprite_no_include","debug",
"cyclescore","cycles","legacy"
];
var directives = new Map();
directives_list.forEach(function(s) { directives.set(s, 'keyword'); });
var numbers = /^([$][0-9a-f]+|[%][01]+|[0-9.]+)/i;
return {
startState: function() {
return {
context: 0
};
},
token: function(stream, state) {
if (!stream.column()) {
state.context = 0;
if (stream.eatWhile(/[\w.]/)) {
if (stream.current().toLowerCase() == 'end')
return 'keyword';
else
return 'tag';
}
}
if (stream.eatSpace())
return null;
var w;
if (stream.eatWhile(/[$%A-Z0-9]/i)) {
w = stream.current();
var cur = w.toLowerCase();
var style = directives.get(cur);
if (cur == 'rem') {
stream.eatWhile(/./);
return 'comment';
}
if (style)
return style;
if (numbers.test(w)) {
return 'number';
} else {
return null;
}
} else {
stream.next();
}
return null;
}
};
});
CodeMirror.defineMIME("text/x-bataribasic", "bataribasic");
});

99
src/parser/lang-bataribasic.ts Normal file
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// CodeMirror 6 language support for Batari Basic
// Migrated from CodeMirror 5 mode
// Original copyright (c) by Marijn Haverbeke and others
// Distributed under an MIT license: https://codemirror.net/5/LICENSE
import { StreamLanguage, StreamParser } from "@codemirror/language";
import { LanguageSupport } from "@codemirror/language";
interface BatariBasicState {
context: number;
}
// TODO: Migrate to CodeMirror 6 Lezer parser.
function createBatariBasicParser(): StreamParser<BatariBasicState> {
const directives_list = [
'rem', 'if', 'else', 'then', 'goto',
'includesfile', 'include', 'inline', 'function',
'bank', 'sdata', 'data',
'on', 'off',
'up', 'down',
'const', 'dim', 'for', 'next', 'gosub',
'pfpixel', 'pfhline', 'pfclear', 'pfvline', 'pfscroll',
'drawscreen', 'asm', 'pop', 'set', 'return', 'reboot', 'vblank',
'pfcolors', 'pfheights', 'playfield', 'lives',
'player0', 'player1', 'player2', 'player3', 'player4', 'player5',
'player0color', 'player1color',
'let',
'switchreset', 'switchselect', 'switchleftb', 'switchrightb', 'switchbw',
'joy0up', 'joy0down', 'joy0left', 'joy0right', 'joy1up', 'joy1down', 'joy1left', 'joy1right', 'joy0fire', 'joy1fire',
'size', '2k', '8k', '8kSC', '16k', '16kSC', '32k', '32kSC', '4k',
'thisbank', 'otherbank', 'flip',
'collision', 'missile0', 'missile1', 'ball',
'stackpull', 'rand', 'score', 'scorec', 'Areg',
'smartbranching', 'romsize', 'optimization', 'speed', 'size',
'noinlinedata', 'inlinerand', 'none', 'kernal', 'kernel_options',
'readpaddle', 'player1colors', 'playercolors', 'no_blank_lines',
'kernel', 'multisprite', 'multisprite_no_include', 'debug',
'cyclescore', 'cycles', 'legacy'
];
const directives = new Map<string, string>();
directives_list.forEach(s => directives.set(s, 'keyword'));
const numbers = /^([$][0-9a-f]+|[%][01]+|[0-9.]+)/i;
return {
startState(): BatariBasicState {
return {
context: 0
};
},
token(stream, state) {
if (!stream.column()) {
state.context = 0;
if (stream.eatWhile(/[\w.]/)) {
if (stream.current().toLowerCase() == 'end')
return 'keyword';
else
return 'meta';
}
}
if (stream.eatSpace())
return null;
let w;
if (stream.eatWhile(/[$%A-Z0-9]/i)) {
w = stream.current();
const cur = w.toLowerCase();
const style = directives.get(cur);
if (cur == 'rem') {
stream.eatWhile(/./);
return 'comment';
}
if (style)
return style;
if (numbers.test(w)) {
return 'number';
} else {
return null;
}
} else {
stream.next();
}
return null;
}
};
}
/**
* Language support for Batari Basic
*/
export function batariBasic(): LanguageSupport {
return new LanguageSupport(StreamLanguage.define(createBatariBasicParser()));
}