Project

General

Profile

Feature #12969

Allow optional parameter in String#strip and related

Added by herwinw (Herwin Quarantainenet) almost 4 years ago. Updated almost 4 years ago.

Status:
Open
Priority:
Normal
Assignee:
-
Target version:
-
[ruby-core:78251]

Description

String#strip and related methods have a hardcoded match on whitespace, defined as "null, horizontal tab, line feed, vertical tab, form feed, carriage return, space". It would be nice to allow a parameter to specify the characters you want to strip.

This would result in a kind of marriage between String#delete and String#chomp. The first one is an example on how to specify character classes, the second one is an example on how to pass an optional parameter.

Examples how this would work:

"hellooo  ".rstrip          #=> "hellooo"
"hellooo  ".rstrip(" ")     #=> "hellooo"
"hellooo  ".rstrip(" o")    #=> "hell"
"hellooo  ".rstrip("o ")    #=> "hell"
"hellooo  ".rstrip("o")     #=> "hellooo  "
"hellooo  ".chomp(" ")      #=> "hellooo ", only replaces one character, thus not a sensible alternative

The same behaviour can be achieved by using String#sub and the correct anchors, but I think an optional parameter to String#strip is cleaner to read. It's probably faster too, since we don't have to initialize a regex state machine.

Also available in: Atom PDF