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ebcdic.go
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ebcdic.go
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// This file is part of https://github.com/racingmars/go3270/
// Copyright 2020 by Matthew R. Wilson, licensed under the MIT license. See
// LICENSE in the project root for license information.
package go3270
// Each index in this array is the ASCII value, and the value at the index is
// the corresponding EBCDIC (codepage 37) value.
var ebcdic = []byte{
0, 1, 2, 3, 55, 45, 46, 47, 22, 5, 37, 11, 12, 13, 14, 15, 16, 17, 18, 19,
60, 61, 50, 38, 24, 25, 63, 39, 28, 29, 30, 31, 64, 90, 127, 123, 91, 108,
80, 125, 77, 93, 92, 78, 107, 96, 75, 97, 240, 241, 242, 243, 244, 245,
246, 247, 248, 249, 122, 94, 76, 126, 110, 111, 124, 193, 194, 195, 196,
197, 198, 199, 200, 201, 209, 210, 211, 212, 213, 214, 215, 216, 217, 226,
227, 228, 229, 230, 231, 232, 233, 74, 224, 90, 95, 109, 121, 129, 130,
131, 132, 133, 134, 135, 136, 137, 145, 146, 147, 148, 149, 150, 151, 152,
153, 162, 163, 164, 165, 166, 167, 168, 169, 192, 106, 208, 161, 7, 32,
33, 34, 35, 36, 21, 6, 23, 40, 41, 42, 43, 44, 9, 10, 27, 48, 49, 26, 51,
52, 53, 54, 8, 56, 57, 58, 59, 4, 20, 62, 225, 65, 66, 67, 68, 69, 70, 71,
72, 73, 81, 82, 83, 84, 85, 86, 87, 88, 89, 98, 99, 100, 101, 102, 103,
104, 105, 112, 113, 114, 115, 116, 117, 118, 119, 120, 128, 138, 139, 140,
141, 142, 143, 144, 154, 155, 156, 157, 158, 159, 160, 170, 171, 172, 173,
174, 175, 176, 177, 178, 179, 180, 181, 182, 183, 184, 185, 186, 187, 188,
189, 190, 191, 202, 203, 204, 205, 206, 207, 218, 219, 220, 221, 222, 223,
234, 235, 236, 237, 238, 239, 250, 251, 252, 253, 254, 255}
// Each index in this array is the EBCDIC (codepage 37) value, and the value
// at the index is the corresponding ASCII value.
var ascii = []byte{
0, 1, 2, 3, 156, 9, 134, 127, 151, 141, 142, 11, 12, 13, 14, 15,
16, 17, 18, 19, 157, 133, 8, 135, 24, 25, 146, 143, 28, 29, 30, 31,
128, 129, 130, 131, 132, 10, 23, 27, 136, 137, 138, 139, 140, 5, 6, 7,
144, 145, 22, 147, 148, 149, 150, 4, 152, 153, 154, 155, 20, 21, 158, 26,
32, 160, 161, 162, 163, 164, 165, 166, 167, 168, 91, 46, 60, 40, 43, 33,
38, 169, 170, 171, 172, 173, 174, 175, 176, 177, 33, 36, 42, 41, 59, 94,
45, 47, 178, 179, 180, 181, 182, 183, 184, 185, 124, 44, 37, 95, 62, 63,
186, 187, 188, 189, 190, 191, 192, 193, 194, 96, 58, 35, 64, 39, 61, 34,
195, 97, 98, 99, 100, 101, 102, 103, 104, 105, 196, 197, 198, 199, 200,
201, 202, 106, 107, 108, 109, 110, 111, 112, 113, 114, 203, 204, 205, 206,
207, 208, 209, 126, 115, 116, 117, 118, 119, 120, 121, 122, 210, 211, 212,
213, 214, 215, 216, 217, 218, 219, 220, 221, 222, 223, 224, 225, 226, 227,
228, 229, 230, 231, 123, 65, 66, 67, 68, 69, 70, 71, 72, 73, 232, 233,
234, 235, 236, 237, 125, 74, 75, 76, 77, 78, 79, 80, 81, 82, 238, 239,
240, 241, 242, 243, 92, 159, 83, 84, 85, 86, 87, 88, 89, 90, 244, 245,
246, 247, 248, 249, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 250, 251, 252,
253, 254, 255}
// a2e converts the input byte array, a, from ASCII to EBCDIC.
func a2e(a []byte) []byte {
result := make([]byte, len(a))
for i := 0; i < len(a); i++ {
result[i] = ebcdic[a[i]]
}
return result
}
// e2a converts the input byte array, e, from EBCDIC to ASCII
func e2a(e []byte) []byte {
result := make([]byte, len(e))
for i := 0; i < len(e); i++ {
result[i] = ascii[e[i]]
}
return result
}