parse-command.js•1.06 kB
export function parseCommand(cmd) {
const extraSpacesStrippedCommand = cmd.replace(/\s{2,}/g, ' ');
const splitCommand = extraSpacesStrippedCommand.split(/\s+(?![^[]*]|[^<]*>)/);
const bregex = /\.*[\][<>]/g;
const firstCommand = splitCommand.shift();
if (!firstCommand)
throw new Error(`No command found in: ${cmd}`);
const parsedCommand = {
cmd: firstCommand.replace(bregex, ''),
demanded: [],
optional: [],
};
splitCommand.forEach((cmd, i) => {
let variadic = false;
cmd = cmd.replace(/\s/g, '');
if (/\.+[\]>]/.test(cmd) && i === splitCommand.length - 1)
variadic = true;
if (/^\[/.test(cmd)) {
parsedCommand.optional.push({
cmd: cmd.replace(bregex, '').split('|'),
variadic,
});
}
else {
parsedCommand.demanded.push({
cmd: cmd.replace(bregex, '').split('|'),
variadic,
});
}
});
return parsedCommand;
}