utils.base64decode
Decode a string which was base-64 encoded
Prototype
s = utils.base64decode (s)
Description
Decodes the string 's' from base64 encoding to plain text. The decoded string may contain the null byte (ie. hex 00). Otherwise, this is the same behaviour as the world.Base64Decode function. Bytes that are invalid are skipped (eg. spaces, newlines, other junk).
eg.
eg.
print (utils.base64decode ("TmljayBHYW1tb24=")) --> Nick Gammon
If the source string is not a multiple of 4 bytes then the last few bytes of the decoded string will be lost (because decoding is done in batches of 4 input bytes to 3 output bytes).Lua functions
- utils.activatenotepad - Actvitates the specified notepad window
- utils.appendtonotepad - Appends text to the specified notepad window
- utils.base64encode - Encode a string with base-64 encoding
- utils.callbackslist - Returns a table of plugin callback function names
- utils.choose - Display a combo box with choices in it
- utils.colourcube - Changes the colour cube used by 256-colour ANSI codes
- utils.compress - Compress a string
- utils.decompress - Decompress a string
- utils.directorypicker - Invokes the Windows standard "directory picker" dialog box
- utils.editbox - Display a large message box and get free-format reply
- utils.edit_distance - Returns the Levenshtein Edit Distance between two words
- utils.filepicker - Invokes the Windows standard "file picker" dialog box
- utils.filterpicker - Display a dialog box which filters its contents as you type
- utils.fontpicker - Invokes the Windows standard "font picker" dialog box
- utils.fromhex - Convert a string from hex
- utils.functionlist - Returns a table of MUSHclient world function names
- utils.getfontfamilies - Returns all fonts available to Windows
- utils.glyph_available - Returns the glyph index of a glyph (character) in a font
- utils.hash - Hash a string, returning the hex codes
- utils.info - Information about directories, locale, etc.
- utils.infotypes - Returns a table of all GetInfo type selectors
- utils.inputbox - Display a message box and get free-format reply
- utils.listbox - Display a dialog box with choices in it in a single selection list box
- utils.md5 - Hash a string using the 128-bit MD5 algorithm
- utils.menufontsize - Alters the size of the font used in menus
- utils.metaphone - Returns metaphones (sound-alike codes) for the supplied word
- utils.msgbox - Display a message box and get a response
- utils.multilistbox - Display a dialog box with choices in it in a multiple selection list box
- utils.readdir - Read a disk directory into a table
- utils.reload_global_prefs - Forces global preferences file to be reloaded
- utils.sendtofront - Bring a window to the front
- utils.sha256 - Hash a string using a 256-bit hash
- utils.shellexecute - Executes a Windows "shell" command
- utils.spellcheckdialog - Spell-checker dialog
- utils.split - Split a delimited string into a table
- utils.timer - Returns the high-resolution timer output
- utils.tohex - Convert a string into hex
- utils.umsgbox - Display a message box and get a response (Unicode)
- utils.utf8convert - Encodes a string into a UTF-8 string
- utils.utf8decode - Encodes a series of Unicode codes into a UTF-8 string
- utils.utf8encode - Encodes a series of Unicode codes into a UTF-8 string
- utils.utf8sub - Returns a substring of a UTF-8 string
- utils.utf8valid - Checks if a UTF-8 string is valid
- utils.xmlread - Parses an XML string into a nested table
Topics
- Lua LPEG library
- Lua PCRE regular expression functions
- Lua base functions
- Lua bc (big number) functions
- Lua bit manipulation functions
- Lua coroutine functions
- Lua debug functions
- Lua io functions
- Lua math functions
- Lua os functions
- Lua package functions
- Lua script extensions
- Lua string functions
- Lua syntax
- Lua table functions
- Lua utilities
- Scripting callbacks - plugins
- Scripting