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Bug #6161

closed

Document interpretation of backslashes in string transliterations

Added by john_firebaugh (John Firebaugh) about 12 years ago. Updated almost 12 years ago.

Status:
Closed
Target version:
-
ruby -v:
ruby 1.9.3p125 (2012-02-16 revision 34643) [x86_64-darwin11.3.0]
Backport:
[ruby-core:<unknown>]

Description

=begin
The transliteration string accepted by String#tr, #delete, #squeeze, and #count has its own backslash escape syntax (on top of that provided by string literals), but it isn't documented.

A backlash character escapes the subsequent character, unless it is the ending character of a range designator (e.g. (({X-}))) or the final character, in which case it is interpreted literally. This can be used to prevent a leading (({^})) from interpretation as the complement operator and (({-})) from interpretation as the range operator.
=end

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