44 lines
1.2 KiB
JavaScript
44 lines
1.2 KiB
JavaScript
'use strict';
|
|
var path = require('path');
|
|
var trimRepeated = require('trim-repeated');
|
|
var filenameReservedRegex = require('filename-reserved-regex');
|
|
var stripOuter = require('strip-outer');
|
|
|
|
// doesn't make sense to have longer filenames
|
|
var MAX_FILENAME_LENGTH = 100;
|
|
|
|
var reControlChars = /[\x00-\x1f\x80-\x9f]/g;
|
|
var reRelativePath = /^\.+/;
|
|
|
|
var fn = module.exports = function (str, opts) {
|
|
if (typeof str !== 'string') {
|
|
throw new TypeError('Expected a string');
|
|
}
|
|
|
|
opts = opts || {};
|
|
|
|
var replacement = opts.replacement || '!';
|
|
|
|
if (filenameReservedRegex().test(replacement) && reControlChars.test(replacement)) {
|
|
throw new Error('Replacement string cannot contain reserved filename characters');
|
|
}
|
|
|
|
str = str.replace(filenameReservedRegex(), replacement);
|
|
str = str.replace(reControlChars, replacement);
|
|
str = str.replace(reRelativePath, replacement);
|
|
|
|
if (replacement.length > 0) {
|
|
str = trimRepeated(str, replacement);
|
|
str = str.length > 1 ? stripOuter(str, replacement) : str;
|
|
}
|
|
|
|
str = str.slice(0, MAX_FILENAME_LENGTH);
|
|
|
|
return str;
|
|
};
|
|
|
|
fn.path = function (pth, opts) {
|
|
pth = path.resolve(pth);
|
|
return path.join(path.dirname(pth), fn(path.basename(pth), opts));
|
|
};
|