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21 changes: 0 additions & 21 deletions LICENSE

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11 changes: 0 additions & 11 deletions README.md

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108 changes: 108 additions & 0 deletions base64.gs
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list base64_buffer;
list base64_strbuf;
list base64_lut; # lookup table: ASCII costume_number -> base64 value (0-63), 255=invalid/pad

%define BASE64_CHARSET "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/="
%define BASE64_URLSAFE "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789-_="

# Build LUT from a charset string into base64_lut.
# base64_lut[costume_number_of_char] = base64 value (0-63), or 255 for '='
proc base64_build_lut charset {
delete base64_lut;
# Fill 256 slots with 255 (invalid)
local j = 0;
repeat 256 {
add 255 to base64_lut;
j++;
}
# Map each charset char to its index (0-63), slot 65 (index 64) is '=' -> 255 already
local idx = 0;
repeat 64 {
switch_costume $charset[1 + idx];
base64_lut[costume_number()] = idx;
idx++;
}
}

func base64_encode(charset) {
delete base64_strbuf;
local i = 1;
until i > length(base64_buffer) {
local a6 = base64_buffer[i] // 0b100;
local a2 = base64_buffer[i] % 0b100;
add $charset[1 + a6] to base64_strbuf;
i++;
if i <= length(base64_buffer) {
local b4hi = base64_buffer[i] // 0x10;
local b4lo = base64_buffer[i] % 0x10;
add $charset[1 + a2 * 0x10 + b4hi] to base64_strbuf;
i++;
if i <= length(base64_buffer) {
local c2 = base64_buffer[i] // 0b1000000;
local c6 = base64_buffer[i] % 0b1000000;
add $charset[1 + b4lo * 4 + c2] to base64_strbuf;
add $charset[1 + c6] to base64_strbuf;
i++;
} else {
add $charset[1 + b4lo * 4] to base64_strbuf;
add $charset[65] to base64_strbuf;
}
} else {
add $charset[1 + a2 * 0x10] to base64_strbuf;
add $charset[65] & $charset[65] to base64_strbuf;
}
}
return base64_strbuf;
}

# Decode base64 string $data into base64_buffer.
# Call base64_build_lut with the appropriate charset before calling this.
# Appends decoded bytes to base64_buffer (clear it first if needed).
proc base64_decode data {
local len = length($data);
local i = 1;
until i > len {
# Read up to 4 base64 chars, get their 6-bit values via LUT
switch_costume $data[i];
local v0 = base64_lut[costume_number()];
i++;

switch_costume $data[i];
local v1 = base64_lut[costume_number()];
i++;

# Byte 1: high 6 bits from v0, low 2 bits from v1 high
add v0 * 4 + v1 // 16 to base64_buffer;

# Check for padding or end: if 3rd char is '=' or beyond end, stop
if i > len {
stop_this_script;
}
switch_costume $data[i];
local v2 = base64_lut[costume_number()];
i++;

if v2 == 255 {
# Padding '=' — only 2 encoded chars, 1 decoded byte (already added)
stop_this_script;
}

# Byte 2: low 4 bits of v1, high 4 bits of v2
add (v1 % 16) * 16 + v2 // 4 to base64_buffer;

if i > len {
stop_this_script;
}
switch_costume $data[i];
local v3 = base64_lut[costume_number()];
i++;

if v3 == 255 {
# Padding '=' — only 3 encoded chars, 2 decoded bytes
stop_this_script;
}

# Byte 3: low 2 bits of v2, all 6 bits of v3
add (v2 % 4) * 64 + v3 to base64_buffer;
}
}
72 changes: 72 additions & 0 deletions bitwise.gs
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list xor4 = [0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 1, 0, 3, 2, 5, 4, 7, 6, 9, 8, 11, 10, 13, 12, 15, 14, 2, 3, 0, 1, 6, 7, 4, 5, 10, 11, 8, 9, 14, 15, 12, 13, 3, 2, 1, 0, 7, 6, 5, 4, 11, 10, 9, 8, 15, 14, 13, 12, 4, 5, 6, 7, 0, 1, 2, 3, 12, 13, 14, 15, 8, 9, 10, 11, 5, 4, 7, 6, 1, 0, 3, 2, 13, 12, 15, 14, 9, 8, 11, 10, 6, 7, 4, 5, 2, 3, 0, 1, 14, 15, 12, 13, 10, 11, 8, 9, 7, 6, 5, 4, 3, 2, 1, 0, 15, 14, 13, 12, 11, 10, 9, 8, 8, 9, 10, 11, 12, 13, 14, 15, 0, 1, 2, 3, 4, 5, 6, 7, 9, 8, 11, 10, 13, 12, 15, 14, 1, 0, 3, 2, 5, 4, 7, 6, 10, 11, 8, 9, 14, 15, 12, 13, 2, 3, 0, 1, 6, 7, 4, 5, 11, 10, 9, 8, 15, 14, 13, 12, 3, 2, 1, 0, 7, 6, 5, 4, 12, 13, 14, 15, 8, 9, 10, 11, 4, 5, 6, 7, 0, 1, 2, 3, 13, 12, 15, 14, 9, 8, 11, 10, 5, 4, 7, 6, 1, 0, 3, 2, 14, 15, 12, 13, 10, 11, 8, 9, 6, 7, 4, 5, 2, 3, 0, 1, 15, 14, 13, 12, 11, 10, 9, 8, 7, 6, 5, 4, 3, 2, 1, 0];
list and4 = [0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 0, 2, 2, 0, 0, 2, 2, 0, 0, 2, 2, 0, 0, 2, 2, 0, 1, 2, 3, 0, 1, 2, 3, 0, 1, 2, 3, 0, 1, 2, 3, 0, 0, 0, 0, 4, 4, 4, 4, 0, 0, 0, 0, 4, 4, 4, 4, 0, 1, 0, 1, 4, 5, 4, 5, 0, 1, 0, 1, 4, 5, 4, 5, 0, 0, 2, 2, 4, 4, 6, 6, 0, 0, 2, 2, 4, 4, 6, 6, 0, 1, 2, 3, 4, 5, 6, 7, 0, 1, 2, 3, 4, 5, 6, 7, 0, 0, 0, 0, 0, 0, 0, 0, 8, 8, 8, 8, 8, 8, 8, 8, 0, 1, 0, 1, 0, 1, 0, 1, 8, 9, 8, 9, 8, 9, 8, 9, 0, 0, 2, 2, 0, 0, 2, 2, 8, 8, 10, 10, 8, 8, 10, 10, 0, 1, 2, 3, 0, 1, 2, 3, 8, 9, 10, 11, 8, 9, 10, 11, 0, 0, 0, 0, 4, 4, 4, 4, 8, 8, 8, 8, 12, 12, 12, 12, 0, 1, 0, 1, 4, 5, 4, 5, 8, 9, 8, 9, 12, 13, 12, 13, 0, 0, 2, 2, 4, 4, 6, 6, 8, 8, 10, 10, 12, 12, 14, 14, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15];
list or4 = [0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 1, 1, 3, 3, 5, 5, 7, 7, 9, 9, 11, 11, 13, 13, 15, 15, 2, 3, 2, 3, 6, 7, 6, 7, 10, 11, 10, 11, 14, 15, 14, 15, 3, 3, 3, 3, 7, 7, 7, 7, 11, 11, 11, 11, 15, 15, 15, 15, 4, 5, 6, 7, 4, 5, 6, 7, 12, 13, 14, 15, 12, 13, 14, 15, 5, 5, 7, 7, 5, 5, 7, 7, 13, 13, 15, 15, 13, 13, 15, 15, 6, 7, 6, 7, 6, 7, 6, 7, 14, 15, 14, 15, 14, 15, 14, 15, 7, 7, 7, 7, 7, 7, 7, 7, 15, 15, 15, 15, 15, 15, 15, 15, 8, 9, 10, 11, 12, 13, 14, 15, 8, 9, 10, 11, 12, 13, 14, 15, 9, 9, 11, 11, 13, 13, 15, 15, 9, 9, 11, 11, 13, 13, 15, 15, 10, 11, 10, 11, 14, 15, 14, 15, 10, 11, 10, 11, 14, 15, 14, 15, 11, 11, 11, 11, 15, 15, 15, 15, 11, 11, 11, 11, 15, 15, 15, 15, 12, 13, 14, 15, 12, 13, 14, 15, 12, 13, 14, 15, 12, 13, 14, 15, 13, 13, 15, 15, 13, 13, 15, 15, 13, 13, 15, 15, 13, 13, 15, 15, 14, 15, 14, 15, 14, 15, 14, 15, 14, 15, 14, 15, 14, 15, 14, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15];

%define XOR4(A, B) xor4[1+(A)*0x10+(B)]

func xor8(a, b) {
return XOR4($a//0x10, $b//0x10)*0x10 + XOR4($a%0x10, $b%0x10);
}

func xor16(a, b) {
return xor8($a//0x100, $b//0x100)*0x100 + xor8($a%0x100, $b%0x100);
}

func xor32(a, b) {
return xor16($a//0x10000, $b//0x10000)*0x10000 + xor16($a%0x10000, $b%0x10000);
}

%define AND4(A, B) and4[1+(A)*0x10+(B)]
%define OR4(A, B) or4[1+(A)*0x10+(B)]

func and8(a, b) {
return AND4($a//0x10, $b//0x10)*0x10 + AND4($a%0x10, $b%0x10);
}

func and16(a, b) {
return and8($a//0x100, $b//0x100)*0x100 + and8($a%0x100, $b%0x100);
}

func and32(a, b) {
return and16($a//0x10000, $b//0x10000)*0x10000 + and16($a%0x10000, $b%0x10000);
}

func or8(a, b) {
return OR4($a//0x10, $b//0x10)*0x10 + OR4($a%0x10, $b%0x10);
}

func or16(a, b) {
return or8($a//0x100, $b//0x100)*0x100 + or8($a%0x100, $b%0x100);
}

func or32(a, b) {
return or16($a//0x10000, $b//0x10000)*0x10000 + or16($a%0x10000, $b%0x10000);
}

%define NOT4(A) XOR4((A), 0xF)

func not8(a) {
return xor8($a, 0xFF);
}

func not16(a) {
return xor16($a, 0xFFFF);
}

func not32(a) {
return xor32($a, 0xFFFFFFFF);
}

%define ADD32(A,B) (((A)+(B))%0x100000000)

func add32(a, b) {
return ($a + $b) % 0x100000000;
}

%define ROL32(A) ((((A)*2)%0x100000000)+((A) > 0x7FFFFFFF))

func rol32(a, b) {
local a = $a;
repeat $b % 32 { a = ROL32(a); }
return a;
}
54 changes: 54 additions & 0 deletions bytes.gs
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list bytes_strbuf;

list bytes_hex_table = ["00", "01", "02", "03", "04", "05", "06", "07", "08", "09", "0A", "0B", "0C", "0D", "0E", "0F", "10", "11", "12", "13", "14", "15", "16", "17", "18", "19", "1A", "1B", "1C", "1D", "1E", "1F", "20", "21", "22", "23", "24", "25", "26", "27", "28", "29", "2A", "2B", "2C", "2D", "2E", "2F", "30", "31", "32", "33", "34", "35", "36", "37", "38", "39", "3A", "3B", "3C", "3D", "3E", "3F", "40", "41", "42", "43", "44", "45", "46", "47", "48", "49", "4A", "4B", "4C", "4D", "4E", "4F", "50", "51", "52", "53", "54", "55", "56", "57", "58", "59", "5A", "5B", "5C", "5D", "5E", "5F", "60", "61", "62", "63", "64", "65", "66", "67", "68", "69", "6A", "6B", "6C", "6D", "6E", "6F", "70", "71", "72", "73", "74", "75", "76", "77", "78", "79", "7A", "7B", "7C", "7D", "7E", "7F", "80", "81", "82", "83", "84", "85", "86", "87", "88", "89", "8A", "8B", "8C", "8D", "8E", "8F", "90", "91", "92", "93", "94", "95", "96", "97", "98", "99", "9A", "9B", "9C", "9D", "9E", "9F", "A0", "A1", "A2", "A3", "A4", "A5", "A6", "A7", "A8", "A9", "AA", "AB", "AC", "AD", "AE", "AF", "B0", "B1", "B2", "B3", "B4", "B5", "B6", "B7", "B8", "B9", "BA", "BB", "BC", "BD", "BE", "BF", "C0", "C1", "C2", "C3", "C4", "C5", "C6", "C7", "C8", "C9", "CA", "CB", "CC", "CD", "CE", "CF", "D0", "D1", "D2", "D3", "D4", "D5", "D6", "D7", "D8", "D9", "DA", "DB", "DC", "DD", "DE", "DF", "E0", "E1", "E2", "E3", "E4", "E5", "E6", "E7", "E8", "E9", "EA", "EB", "EC", "ED", "EE", "EF", "F0", "F1", "F2", "F3", "F4", "F5", "F6", "F7", "F8", "F9", "FA", "FB", "FC", "FD", "FE", "FF"];

%define BYTES_ENCODE_ASCII(LIST) \
local i = 1; \
repeat length($text) { \
switch_costume $text[i]; \
add costume_number()+31 to LIST; \
i++; \
}

%define BYTES_DECODE_ASCII(LIST) \
delete bytes_strbuf; \
local start = $start; \
local end = $end; \
if start < 0 { \
start = length(LIST) + start + 1; \
} \
if end < 0 { \
end = length(LIST) + end + 1; \
} \
local i = start; \
repeat end - start + 1 { \
switch_costume LIST[i]-31; \
add costume_name() to bytes_strbuf; \
i++; \
} \
return bytes_strbuf;

%define BYTES_ENCODE_HEX(LIST) \
local i = 1; \
repeat length($text)//2 { \
add ("0x"&$text[i]&$text[i+1]) to LIST; \
i+=2; \
}

%define BYTES_DECODE_HEX(LIST) \
delete bytes_strbuf; \
local start = $start; \
local end = $end; \
if start < 0 { \
start = length(LIST) + start + 1; \
} \
if end < 0 { \
end = length(LIST) + end + 1; \
} \
local i = start; \
repeat end - start + 1 { \
add bytes_hex_table[1+LIST[i]][1] to bytes_strbuf; \
add bytes_hex_table[1+LIST[i]][2] to bytes_strbuf; \
i++; \
} \
return bytes_strbuf;
65 changes: 0 additions & 65 deletions cmd.gs

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