This app provides monitoring and information features for the common freifunk user and the technical stuff of a freifunk community.
Code base is taken from a TUM Practical Course project and added here to see if Freifunk Altdorf can use it.
https://www.freifunk-altdorf.de
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95 lines
2.4 KiB
95 lines
2.4 KiB
/** |
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* Copyright (c) 2013-present, Facebook, Inc. |
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* |
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* This source code is licensed under the MIT license found in the |
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* LICENSE file in the root directory of this source tree. |
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* |
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* @providesModule UnicodeBidiService |
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* @typechecks |
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* @flow |
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*/ |
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/** |
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* Stateful API for text direction detection |
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* |
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* This class can be used in applications where you need to detect the |
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* direction of a sequence of text blocks, where each direction shall be used |
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* as the fallback direction for the next one. |
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* |
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* NOTE: A default direction, if not provided, is set based on the global |
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* direction, as defined by `UnicodeBidiDirection`. |
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* |
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* == Example == |
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* ``` |
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* var UnicodeBidiService = require('UnicodeBidiService'); |
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* |
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* var bidiService = new UnicodeBidiService(); |
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* |
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* ... |
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* |
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* bidiService.reset(); |
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* for (var para in paragraphs) { |
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* var dir = bidiService.getDirection(para); |
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* ... |
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* } |
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* ``` |
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* |
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* Part of our implementation of Unicode Bidirectional Algorithm (UBA) |
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* Unicode Standard Annex #9 (UAX9) |
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* http://www.unicode.org/reports/tr9/ |
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*/ |
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'use strict'; |
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const UnicodeBidi = require('./UnicodeBidi'); |
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const UnicodeBidiDirection = require('./UnicodeBidiDirection'); |
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const invariant = require('./invariant'); |
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import type { BidiDirection } from './UnicodeBidiDirection'; |
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class UnicodeBidiService { |
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_defaultDir: BidiDirection; |
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_lastDir: BidiDirection; |
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/** |
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* Stateful class for paragraph direction detection |
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* |
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* @param defaultDir Default direction of the service |
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*/ |
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constructor(defaultDir: ?BidiDirection) { |
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if (!defaultDir) { |
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defaultDir = UnicodeBidiDirection.getGlobalDir(); |
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} else { |
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invariant(UnicodeBidiDirection.isStrong(defaultDir), 'Default direction must be a strong direction (LTR or RTL)'); |
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} |
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this._defaultDir = defaultDir; |
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this.reset(); |
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} |
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/** |
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* Reset the internal state |
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* |
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* Instead of creating a new instance, you can just reset() your instance |
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* everytime you start a new loop. |
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*/ |
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reset(): void { |
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this._lastDir = this._defaultDir; |
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} |
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/** |
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* Returns the direction of a block of text, and remembers it as the |
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* fall-back direction for the next paragraph. |
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* |
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* @param str A text block, e.g. paragraph, table cell, tag |
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* @return The resolved direction |
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*/ |
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getDirection(str: string): BidiDirection { |
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this._lastDir = UnicodeBidi.getDirection(str, this._lastDir); |
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return this._lastDir; |
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} |
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} |
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module.exports = UnicodeBidiService; |