forked from Fediversity/fediversity.eu
65 lines
1.8 KiB
JavaScript
65 lines
1.8 KiB
JavaScript
|
'use strict';
|
||
|
|
|
||
|
|
const path = require('path');
|
||
|
|
const win32 = process.platform === 'win32';
|
||
|
|
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.removeBackslashes = str => {
|
||
|
|
return str.replace(REGEX_REMOVE_BACKSLASH, match => {
|
||
|
|
return match === '\\' ? '' : match;
|
||
|
|
});
|
||
|
|
};
|
||
|
|
|
||
|
|
exports.supportsLookbehinds = () => {
|
||
|
|
const segs = process.version.slice(1).split('.').map(Number);
|
||
|
|
if (segs.length === 3 && segs[0] >= 9 || (segs[0] === 8 && segs[1] >= 10)) {
|
||
|
|
return true;
|
||
|
|
}
|
||
|
|
return false;
|
||
|
|
};
|
||
|
|
|
||
|
|
exports.isWindows = options => {
|
||
|
|
if (options && typeof options.windows === 'boolean') {
|
||
|
|
return options.windows;
|
||
|
|
}
|
||
|
|
return win32 === true || path.sep === '\\';
|
||
|
|
};
|
||
|
|
|
||
|
|
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;
|
||
|
|
};
|