unix-permissions/build/src/types/symbolic/tokenize.js

Swiss Army knife for Unix permissions

export const tokenize=(symbolic)=>{
if(typeof symbolic!=="string"){
return
}

const tokens=symbolic.split(COMMA_REGEXP).map(tokenizePart);

const isMatching=tokens.every((token)=>token!==undefined);

if(!isMatching){
return
}

return tokens
};


const COMMA_REGEXP=/\s*,\s*/gu;


const tokenizePart=(part)=>{
const parts=PART_REGEXP.exec(part);

if(parts===null){
return
}

const[,categories,operator,permissions]=parts;
return{categories,operator,permissions}
};







const PART_REGEXP=/^\s*([augo]*)\s*([=+-])\s*([xwrXst]*)\s*$/u;