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/*global navigator*/
'use strict';
const {
REGEX_BACKSLASH,
REGEX_REMOVE_BACKSLASH,
REGEX_SPECIAL_CHARS,
REGEX_SPECIAL_CHARS_GLOBAL
} = require('./constants');
exports.isObject = val => val !== null && typeof val === 'object' && !Array.isArray(val);
exports.hasRegexChars = str => REGEX_SPECIAL_CHARS.test(str);
exports.isRegexChar = str => str.length === 1 && exports.hasRegexChars(str);
exports.escapeRegex = str => str.replace(REGEX_SPECIAL_CHARS_GLOBAL, '\\$1');
exports.toPosixSlashes = str => str.replace(REGEX_BACKSLASH, '/');
exports.isWindows = () => {
if (typeof navigator !== 'undefined' && navigator.platform) {
const platform = navigator.platform.toLowerCase();
return platform === 'win32' || platform === 'windows';
}
if (typeof process !== 'undefined' && process.platform) {
return process.platform === 'win32';
}
return false;
};
exports.removeBackslashes = str => {
return str.replace(REGEX_REMOVE_BACKSLASH, match => {
return match === '\\' ? '' : match;
});
};
exports.escapeLast = (input, char, lastIdx) => {
const idx = input.lastIndexOf(char, lastIdx);
if (idx === -1) return input;
if (input[idx - 1] === '\\') return exports.escapeLast(input, char, idx - 1);
return `${input.slice(0, idx)}\\${input.slice(idx)}`;
};
exports.removePrefix = (input, state = {}) => {
let output = input;
if (output.startsWith('./')) {
output = output.slice(2);
state.prefix = './';
}
return output;
};
exports.wrapOutput = (input, state = {}, options = {}) => {
const prepend = options.contains ? '' : '^';
const append = options.contains ? '' : '$';
let output = `${prepend}(?:${input})${append}`;
if (state.negated === true) {
output = `(?:^(?!${output}).*$)`;
}
return output;
};
exports.basename = (path, { windows } = {}) => {
const segs = path.split(windows ? /[\\/]/ : '/');
const last = segs[segs.length - 1];
if (last === '') {
return segs[segs.length - 2];
}
return last;
};
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