Dani Palou a690353ad7 MOBILE-3833 core: Fix collisions in link handlers
The /admin handlers haven't been modified because that folder can be moved to somewhere else in some Moodle versions
2022-03-31 13:02:52 +02:00

84 lines
2.2 KiB
TypeScript

// (C) Copyright 2015 Moodle Pty Ltd.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
/**
* Singleton with helper functions for text manipulation.
*/
export class CoreText {
// Avoid creating singleton instances.
private constructor() {
// Nothing to do.
}
/**
* Add starting slash to a string if needed.
*
* @param text Text to treat.
* @return Treated text.
*/
static addStartingSlash(text = ''): string {
if (text[0] === '/') {
return text;
}
return '/' + text;
}
/**
* Remove ending slash from a path or URL.
*
* @param text Text to treat.
* @return Treated text.
*/
static removeEndingSlash(text?: string): string {
if (!text) {
return '';
}
if (text.slice(-1) == '/') {
return text.substring(0, text.length - 1);
}
return text;
}
/**
* Concatenate two paths, adding a slash between them if needed.
*
* @param leftPath Left path.
* @param rightPath Right path.
* @return Concatenated path.
*/
static concatenatePaths(leftPath: string, rightPath: string): string {
if (!leftPath) {
return rightPath;
} else if (!rightPath) {
return leftPath;
}
const lastCharLeft = leftPath.slice(-1);
const firstCharRight = rightPath.charAt(0);
if (lastCharLeft === '/' && firstCharRight === '/') {
return leftPath + rightPath.substring(1);
} else if (lastCharLeft !== '/' && firstCharRight !== '/') {
return leftPath + '/' + rightPath;
} else {
return leftPath + rightPath;
}
}
}