Utf8.escape
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Escapes a string to a UTF-8 format string. It supports several escape formats, see the formatting table.
Syntax
string utf8.escape ( string input )
Required Arguments
- input: A string character sequence
Returns
Returns a string containing the escaped UTF-8 characters from the original string.
Formatting
| Format | Description |
|---|---|
| %ddd | ddd is a decimal number with variable length |
| %{ddd} | same as above, but enclosed in brackets |
| %uddd | same as %ddd, 'u' stands for unicode |
| %u{ddd} | same as above, but enclosed in brackets |
| %xhhh | hexadigit version of %ddd |
| %x{hhh} | same as above, but enclosed in brackets |
| %? | '?' stands for any other character to be escaped |
Example
Click to collapse [-]
ServerThis example escapes two byte-string literals to UTF-8 format by using the utf8.escape function.
local output = utf8.escape( "%123 %u123 %{123} %u{123} %xABC %x{ABC}" )
print( output ) -- { { { { ઼ ઼
local output = utf8.escape( "%%123 %? %d %%u" )
print( output ) -- %123 ? d %u
