| var trim = require('./trim'); |
| |
| function boolMatch(s, matchers) { |
| var i, matcher, down = s.toLowerCase(); |
| matchers = [].concat(matchers); |
| for (i = 0; i < matchers.length; i += 1) { |
| matcher = matchers[i]; |
| if (!matcher) continue; |
| if (matcher.test && matcher.test(s)) return true; |
| if (matcher.toLowerCase() === down) return true; |
| } |
| } |
| |
| module.exports = function toBoolean(str, trueValues, falseValues) { |
| if (typeof str === "number") str = "" + str; |
| if (typeof str !== "string") return !!str; |
| str = trim(str); |
| if (boolMatch(str, trueValues || ["true", "1"])) return true; |
| if (boolMatch(str, falseValues || ["false", "0"])) return false; |
| }; |