Difference between revisions of "Text To Byte Conversion"
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integer i; | integer i; | ||
integer n = llGetListLength(bytes); | integer n = llGetListLength(bytes); | ||
for(i = 0; i | for(i = 0; i < n; i += 3) | ||
{ | { | ||
integer | integer dword = | ||
(llList2Integer(bytes, i) & 0xFF) << 24 | |||
| (llList2Integer(bytes, i + 1) & 0xFF) << 16 | |||
| (llList2Integer(bytes, i + 2) & 0xFF) << 8; | |||
text += llGetSubString(llIntegerToBase64(dword), 0, 3); | |||
text += llGetSubString( | |||
} | } | ||
return llBase64ToString(text); | return llBase64ToString(text); |
Revision as of 02:29, 5 January 2008
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Here's a function to pass a string of text and receive a list of bytes. A second function is provided to work in reverse. These methods are especially useful for working with encryption.
Text2Bytes.lsl
<lsl> string base64characters = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/"; list text2bytes(string text) {
string base64 = llStringToBase64(text); list bytes; integer i; integer n = llStringLength(base64); for(i = 0; i < n; i += 4) { integer dword = llBase64ToInteger(llGetSubString(base64, i, i + 3) + "AA") >> 8; bytes += (dword & 0x00FF0000) >> 16; bytes += (dword & 0x0000FF00) >> 8; bytes += (dword & 0x000000FF) >> 0; } return bytes;
} string bytes2text(list bytes) {
string text; integer i; integer n = llGetListLength(bytes); for(i = 0; i < n; i += 3) { integer dword = (llList2Integer(bytes, i) & 0xFF) << 24 | (llList2Integer(bytes, i + 1) & 0xFF) << 16 | (llList2Integer(bytes, i + 2) & 0xFF) << 8; text += llGetSubString(llIntegerToBase64(dword), 0, 3); } return llBase64ToString(text);
}
default {
state_entry() { list bytes = text2bytes("Hello, Avatar!"); llSay(0, llList2CSV(bytes));
string text = bytes2text(bytes); llSay(0, text); }
touch_start(integer total_number) { list bytes = text2bytes("Touched."); llSay(0, llList2CSV(bytes));
string text = bytes2text(bytes); llSay(0, text); }
}
</lsl>