Modern String RetainChars

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RetainChars

Keeps only the characters that belong to a set.

Syntax

RetainChars( s, chars [, ic] )

Notes

• O(n*k)

Examples

#import "std/strings"
using strings

print RetainChars( "abacadabra", "bc" )        '' bcb
print RetainChars( "(555) 123-4567", "0123456789" )    '' 5551234567
print RetainChars( "abacadabra", "" )          '' (empty) -- the complement of RemoveChars

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Library: String Library
Category: String Library
Documented under: The Functions