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[ string->unescape ]

Method

[string->unescape] converts all escape sequences contained within the string into their Unicode equivalents, returning the result as a new string. This is the same escape processing which Lasso does for string literals. [string->unescape] permits this process to be applied to already existing string objects.

String escape processing is described under the "Quoted Strings" heading in the Lasso Language Guide:

http://www.lassosoft.com/Language-Guide-Literals

Table 1: Supported Escape Sequences

Sequence

Value

Description

\xhh

Unicode character

1-2 hex digits

\uhhhh

Unicode character

4 hex digits

\Uhhhhhhhh

Unicode character

8 hex digits

\ooo

Unicode character

1-3 octal digits

\:NAME:

Unicode character

Unicode character name

\a

0x07

Bell

\b

0x08

Backspace

\e

0x1B

Escape

\f

0x0C

Form feed

\n

0x0A

Line feed

\r

0x0D

Carriage return

\t

0x09

Tab

\v

0x0B

Vertical tab

\"

0x22

Quotation mark

\'

0x27

Apostrophe

\?

0x3F

Question mark

\\

0x5C

Backslash

\<end of line>

none

Escape whitespace

  • Syntax
string->unescape
Examples
  • Beginner

To convert encoded characters to their Unicode equivalents:

Use the [string->unescape] method. The following example converts an encoded character representing a heart into its Unicode equivalent.

Code

'I \\u2665 rhinos'->unescape

Result

I ♥ rhinos

Code

local(mystring = 'BOO!')
#mystring->append(` \:GHOST:!`)

#mystring->unescape

Result

BOO! 

Code

local(mystring = `\:HEAVY CHECK MARK:`)
#mystring->append(' OK')

#mystring->unescape

Result

✔ OK

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