Core Function Unescape

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(Example)
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say Unescape(@"\nHello\tTest\p \Ok", 'tn');
 
say Unescape(@"\nHello\tTest\p \Ok", 'tn');
 
// Prints: nHellotTest\p \Ok
 
// Prints: nHellotTest\p \Ok
 +
</syntaxhighlight>
 +
 +
Unescape only A to Z
 +
<syntaxhighlight lang="sputnik">
 +
say Unescape(@"\H\e\l\l\o \W\o\r\l\d\!", 'A'..'Z');
 +
// Prints: H\e\l\l\o W\o\r\l\d\!
 +
</syntaxhighlight>
 +
 +
Unescape only A to Z and a to z
 +
<syntaxhighlight lang="sputnik">
 +
say Unescape(@"\H\e\l\l\o \W\o\r\l\d\!", 'A'..'Z' . 'a'..'z');
 +
// Prints: Hello World\!
 +
</syntaxhighlight>
 +
 +
Unescape using all AlphaNumeric characters
 +
<syntaxhighlight lang="sputnik">
 +
say Unescape(@"\H\e\l\l\o \W\o\r\l\d\!", @AlphaNumeric);
 +
// Prints: Hello World\!
 
</syntaxhighlight>
 
</syntaxhighlight>
  
 
[[Category:Core Function]]
 
[[Category:Core Function]]

Revision as of 16:10, 13 September 2013

Unescape( <expression>, <custom> )

Contents

Description

Remove all escapes from a string.

Parameters

expression

The string to use.

custom

Optional; A string containing characters to be escaped instead of unescaping everything.

Return Value

Success: Returns a string with backslashes stripped off. (\' becomes ' and so on.) Double backslashes (\\) are made into a single backslash (\).

Failure: Returns empty string.

Remarks

This removes all escapes from a string regardless if the escape is valid or not so even \# will be replaced with #.

If you require more specific escape/unescape functions see the ones that deal with C/Sputnik specific escapes.

Example

Unescape everything

say Unescape(@"\m\n\t\\");// Prints: mnt\

Unescape only \t and \n

say Unescape(@"\nHello\tTest\p \Ok", 'tn');
// Prints: nHellotTest\p \Ok

Unescape only A to Z

say Unescape(@"\H\e\l\l\o \W\o\r\l\d\!", 'A'..'Z');
// Prints: H\e\l\l\o W\o\r\l\d\!

Unescape only A to Z and a to z

say Unescape(@"\H\e\l\l\o \W\o\r\l\d\!", 'A'..'Z' . 'a'..'z');
// Prints: Hello World\!

Unescape using all AlphaNumeric characters

say Unescape(@"\H\e\l\l\o \W\o\r\l\d\!", @AlphaNumeric);
// Prints: Hello World\!
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