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/*
* 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.
*
*/
package org.jsmpp.examples.util;
/**
* Based on https://en.wikipedia.org/wiki/GSM_03.38
*/
public class Gsm0338 {
private static final char[] BASIC_CHARS = {
// Basic Character Set
'@', '£', '$', '¥', 'è', 'é', 'ù', 'ì', 'ò', 'Ç', '\n', 'Ø', 'ø', '\r', 'Å', 'å',
'Δ', '_', 'Φ', 'Γ', 'Λ', 'Ω', 'Π', 'Ψ', 'Σ', 'Θ', 'Ξ', 'Æ', 'æ', 'ß', 'É',
' ', '!', '"', '#', '¤', '%', '&', '\'', '(', ')', '*', '+', ',', '-', '.', '/',
'0', '1', '2', '3', '4', '5', '6', '7', '8', '9', ':', ';', '<', '=', '>', '?',
'¡', 'A', 'B', 'C', 'D', 'E', 'F', 'G', 'H', 'I', 'J', 'K', 'L', 'M', 'N', 'O',
'P', 'Q', 'R', 'S', 'T', 'U', 'V', 'W', 'X', 'Y', 'Z', 'Ä', 'Ö', 'Ñ', 'Ü', '§',
'¿', 'a', 'b', 'c', 'd', 'e', 'f', 'g', 'h', 'i', 'j', 'k', 'l', 'm', 'n', 'o',
'p', 'q', 'r', 's', 't', 'u', 'v', 'w', 'x', 'y', 'z', 'ä', 'ö', 'ñ', 'ü', 'à'
};
private static final char[] BASIC_CHARS_EXTENSION = {
// Basic Character Set Extension
'\f', '^', '{', '}', '\\', '[', '~', ']', '|', '€'
};
/**
* Verify is the java string consists of only GSM 03.38 characters of the Basic Character Set including the extension
*/
public static boolean isBasicEncodeable(String javaString) {
char[] javaChars = javaString.toCharArray();
for (char c : javaChars) {
if (isBasicEncodeable(c)) {
continue;
}
return false;
}
return true;
}
/**
* Verify is the java char is an GSM 03.38 character of the Basic Character Set including the extension
*/
public static boolean isBasicEncodeable(char javaChar) {
if (inBasicCharacterSet(javaChar) || inBasicCharacterSetExtension(javaChar)) {
return true;
}
return false;
}
public static boolean inBasicCharacterSet(char javaChar) {
for (char extendedChar : BASIC_CHARS) {
if (extendedChar == javaChar) {
return true;
}
}
return false;
}
public static boolean inBasicCharacterSetExtension(char javaChar) {
for (char extendedChar : BASIC_CHARS_EXTENSION) {
if (extendedChar == javaChar) {
return true;
}
}
return false;
}
/**
* Determine the number of GSM 03.38 Basic Character Set (included extension) septets of a Java char.
*/
public static int countSeptets(char c) {
if (inBasicCharacterSetExtension(c)) {
return 2;
}
if (inBasicCharacterSet(c)) {
return 1;
}
throw new IllegalArgumentException("Character '" + c + " is not a basic encodeable character");
}
/**
* Determine the number of GSM 03.38 Basic Character Set (included extension) septets of a Java string.
*/
public static int countSeptets(String s) {
int i = 0;
for( char c: s.toCharArray()){
i += countSeptets(c);
}
return i;
}
}
