Created
December 7, 2020 17:31
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ebcdic java program to create "golang-like" byte array for ebcdic conversion
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import java.nio.charset.Charset; | |
public class Ebcdic { | |
public static void main(String[] args) { | |
conversionTable("cp1140"); | |
conversionTable("cp1047"); | |
} | |
public static void conversionTable(String ebcdic) { | |
System.out.println("Conversion table for: " + ebcdic); | |
try { | |
Charset ebcdic_cp = Charset.forName(ebcdic); | |
Charset ascii_cp = Charset.forName("ISO-8859-1"); | |
System.out.println("ASCII -> EBCDIC"); | |
for (int i = 0; i <= 255; i++) { | |
if (i > 0 && i % 16 == 0) { | |
System.out.println(String.format("// 0x%02X..0x%02X", i - 16, i - 1)); | |
} | |
byte[] x = new byte[] {(byte)i}; | |
byte[] e = new String(x, ascii_cp).getBytes(ebcdic_cp); | |
System.out.print(String.format("0x%02X, ", e[0])); | |
} | |
System.out.println("// 0xF0..0xFF"); | |
System.out.println(); | |
System.out.println("EBCDIC -> ASCII"); | |
for (int i = 0; i <= 255; i++) { | |
if (i > 0 && i % 16 == 0) { | |
System.out.println(String.format("// 0x%02X..0x%02X", i - 16, i - 1)); | |
} | |
byte[] x = new byte[] {(byte)i}; | |
byte[] e = new String(x, ebcdic_cp).getBytes(ascii_cp); | |
System.out.print(String.format("0x%02X, ", e[0])); | |
} | |
System.out.println("// 0xF0..0xFF"); | |
System.out.println(); | |
} catch (Exception e) { | |
System.out.println("conversion failed: " + e.getMessage()); | |
} | |
} | |
} |
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