@tjieco/library
Version:
TypeScript port of ZXing multi-format 1D/2D barcode image processing library, with Code128 and ITF support.
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text/typescript
/*
* Copyright 2008 ZXing authors
*
* 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.
*/
/*namespace com.google.zxing.common {*/
import Exception from './../Exception';
/*import java.util.HashMap;*/
/*import java.util.Map;*/
export const enum CharacterSetValueIdentifiers {
Cp437,
ISO8859_1,
ISO8859_2,
ISO8859_3,
ISO8859_4,
ISO8859_5,
ISO8859_6,
ISO8859_7,
ISO8859_8,
ISO8859_9,
ISO8859_10,
ISO8859_11,
ISO8859_13,
ISO8859_14,
ISO8859_15,
ISO8859_16,
SJIS,
Cp1250,
Cp1251,
Cp1252,
Cp1256,
UnicodeBigUnmarked,
UTF8,
ASCII,
Big5,
GB18030,
EUC_KR,
}
/**
* Encapsulates a Character Set ECI, according to "Extended Channel Interpretations" 5.3.1.1
* of ISO 18004.
*
* @author Sean Owen
*/
export default class CharacterSetECI {
private static VALUE_IDENTIFIER_TO_ECI = new Map<number, CharacterSetECI>();
private static VALUES_TO_ECI = new Map<number, CharacterSetECI>();
private static NAME_TO_ECI = new Map<string, CharacterSetECI>();
// Enum name is a Java encoding valid for java.lang and java.io
// TYPESCRIPTPORT: changed the main label for ISO as the TextEncoder did not recognized them in the form from java
// (eg ISO8859_1 must be ISO88591 or ISO8859-1 or ISO-8859-1)
// later on: well, except 16 wich does not work with ISO885916 so used ISO-8859-1 form for default
public static readonly Cp437 = new CharacterSetECI(
CharacterSetValueIdentifiers.Cp437, Int32Array.from([0, 2]), 'Cp437');
public static readonly ISO8859_1 = new CharacterSetECI(
CharacterSetValueIdentifiers.ISO8859_1, Int32Array.from([1, 3]), 'ISO-8859-1', 'ISO88591', 'ISO8859_1');
public static readonly ISO8859_2 = new CharacterSetECI(
CharacterSetValueIdentifiers.ISO8859_2, 4, 'ISO-8859-2', 'ISO88592', 'ISO8859_2');
public static readonly ISO8859_3 = new CharacterSetECI(
CharacterSetValueIdentifiers.ISO8859_3, 5, 'ISO-8859-3', 'ISO88593', 'ISO8859_3');
public static readonly ISO8859_4 = new CharacterSetECI(
CharacterSetValueIdentifiers.ISO8859_4, 6, 'ISO-8859-4', 'ISO88594', 'ISO8859_4');
public static readonly ISO8859_5 = new CharacterSetECI(
CharacterSetValueIdentifiers.ISO8859_5, 7, 'ISO-8859-5', 'ISO88595', 'ISO8859_5');
public static readonly ISO8859_6 = new CharacterSetECI(
CharacterSetValueIdentifiers.ISO8859_6, 8, 'ISO-8859-6', 'ISO88596', 'ISO8859_6');
public static readonly ISO8859_7 = new CharacterSetECI(
CharacterSetValueIdentifiers.ISO8859_7, 9, 'ISO-8859-7', 'ISO88597', 'ISO8859_7');
public static readonly ISO8859_8 = new CharacterSetECI(
CharacterSetValueIdentifiers.ISO8859_8, 10, 'ISO-8859-8', 'ISO88598', 'ISO8859_8');
public static readonly ISO8859_9 = new CharacterSetECI(
CharacterSetValueIdentifiers.ISO8859_9, 11, 'ISO-8859-9', 'ISO88599', 'ISO8859_9');
public static readonly ISO8859_10 = new CharacterSetECI(
CharacterSetValueIdentifiers.ISO8859_10, 12, 'ISO-8859-10', 'ISO885910', 'ISO8859_10');
public static readonly ISO8859_11 = new CharacterSetECI(
CharacterSetValueIdentifiers.ISO8859_11, 13, 'ISO-8859-11', 'ISO885911', 'ISO8859_11');
public static readonly ISO8859_13 = new CharacterSetECI(
CharacterSetValueIdentifiers.ISO8859_13, 15, 'ISO-8859-13', 'ISO885913', 'ISO8859_13');
public static readonly ISO8859_14 = new CharacterSetECI(
CharacterSetValueIdentifiers.ISO8859_14, 16, 'ISO-8859-14', 'ISO885914', 'ISO8859_14');
public static readonly ISO8859_15 = new CharacterSetECI(
CharacterSetValueIdentifiers.ISO8859_15, 17, 'ISO-8859-15', 'ISO885915', 'ISO8859_15');
public static readonly ISO8859_16 = new CharacterSetECI(
CharacterSetValueIdentifiers.ISO8859_16, 18, 'ISO-8859-16', 'ISO885916', 'ISO8859_16');
public static readonly SJIS = new CharacterSetECI(
CharacterSetValueIdentifiers.SJIS, 20, 'SJIS', 'Shift_JIS');
public static readonly Cp1250 = new CharacterSetECI(
CharacterSetValueIdentifiers.Cp1250, 21, 'Cp1250', 'windows-1250');
public static readonly Cp1251 = new CharacterSetECI(
CharacterSetValueIdentifiers.Cp1251, 22, 'Cp1251', 'windows-1251');
public static readonly Cp1252 = new CharacterSetECI(
CharacterSetValueIdentifiers.Cp1252, 23, 'Cp1252', 'windows-1252');
public static readonly Cp1256 = new CharacterSetECI(
CharacterSetValueIdentifiers.Cp1256, 24, 'Cp1256', 'windows-1256');
public static readonly UnicodeBigUnmarked = new CharacterSetECI(
CharacterSetValueIdentifiers.UnicodeBigUnmarked, 25, 'UnicodeBigUnmarked', 'UTF-16BE', 'UnicodeBig');
public static readonly UTF8 = new CharacterSetECI(
CharacterSetValueIdentifiers.UTF8, 26, 'UTF8', 'UTF-8');
public static readonly ASCII = new CharacterSetECI(
CharacterSetValueIdentifiers.ASCII, Int32Array.from([27, 170]), 'ASCII', 'US-ASCII');
public static readonly Big5 = new CharacterSetECI(
CharacterSetValueIdentifiers.Big5, 28, 'Big5');
public static readonly GB18030 = new CharacterSetECI(
CharacterSetValueIdentifiers.GB18030, 29, 'GB18030', 'GB2312', 'EUC_CN', 'GBK');
public static readonly EUC_KR = new CharacterSetECI(
CharacterSetValueIdentifiers.EUC_KR, 30, 'EUC_KR', 'EUC-KR');
public values: Int32Array;
public otherEncodingNames: string[];
public constructor(
public valueIdentifier: CharacterSetValueIdentifiers,
valuesParam: Int32Array | number,
public name: string, ...otherEncodingNames: string[]
) {
if (typeof valuesParam === 'number') {
this.values = Int32Array.from([valuesParam]);
} else {
this.values = valuesParam;
}
this.otherEncodingNames = otherEncodingNames;
CharacterSetECI.VALUE_IDENTIFIER_TO_ECI.set(valueIdentifier, this);
CharacterSetECI.NAME_TO_ECI.set(name, this);
const values = this.values;
for (let i = 0, length = values.length; i !== length; i++) {
const v = values[i];
CharacterSetECI.VALUES_TO_ECI.set(v, this);
}
for (const otherName of otherEncodingNames) {
CharacterSetECI.NAME_TO_ECI.set(otherName, this);
}
}
// CharacterSetECI(value: number /*int*/) {
// this(new Int32Array {value})
// }
// CharacterSetECI(value: number /*int*/, String... otherEncodingNames) {
// this.values = new Int32Array {value}
// this.otherEncodingNames = otherEncodingNames
// }
// CharacterSetECI(values: Int32Array, String... otherEncodingNames) {
// this.values = values
// this.otherEncodingNames = otherEncodingNames
// }
public getValueIdentifier(): CharacterSetValueIdentifiers/*int*/ {
return this.valueIdentifier;
}
public getName(): string {
return this.name;
}
public getValue(): number /*int*/ {
return this.values[0];
}
/**
* @param value character set ECI value
* @return {@code CharacterSetECI} representing ECI of given value, or null if it is legal but
* unsupported
* @throws FormatException if ECI value is invalid
*/
public static getCharacterSetECIByValue(value: number /*int*/): CharacterSetECI /*throws FormatException*/ {
if (value < 0 || value >= 900) {
throw new Exception(Exception.FormatException, 'incorect value');
}
const characterSet = CharacterSetECI.VALUES_TO_ECI.get(value);
if (undefined === characterSet) {
throw new Exception(Exception.FormatException, 'incorect value');
}
return characterSet;
}
/**
* @param name character set ECI encoding name
* @return CharacterSetECI representing ECI for character encoding, or null if it is legal
* but unsupported
*/
public static getCharacterSetECIByName(name: string): CharacterSetECI {
const characterSet = CharacterSetECI.NAME_TO_ECI.get(name);
if (undefined === characterSet) {
throw new Exception(Exception.FormatException, 'incorect value');
}
return characterSet;
}
public equals(o: CharacterSetECI) {
if (!(o instanceof CharacterSetECI)) {
return false;
}
const other = o as CharacterSetECI;
return this.getName() === other.getName();
}
}