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| author | knu <knu@b2dd03c8-39d4-4d8f-98ff-823fe69b080e> | 2016-11-05 04:58:48 +0000 |
|---|---|---|
| committer | knu <knu@b2dd03c8-39d4-4d8f-98ff-823fe69b080e> | 2016-11-05 04:58:48 +0000 |
| commit | 5ee9cb1500e5f34c4b11bbb703ea82f613b649c8 (patch) | |
| tree | 44fd2efaf75c6abc329d97c7219e17ba631ea7ff /lib | |
| parent | 049fc52c9708c98bf05305d1377f4385975ba0d7 (diff) | |
| download | ruby-5ee9cb1500e5f34c4b11bbb703ea82f613b649c8.tar.gz | |
Fix the handling of the backslash in double quotes
* lib/shellwords.rb (Shellwords#shellsplit): Fix the handling of
the backslash in double quotes to conform to the standard.
[ruby-core:63807] [Bug #10055]
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@56573 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
Diffstat (limited to 'lib')
| -rw-r--r-- | lib/shellwords.rb | 14 |
1 files changed, 11 insertions, 3 deletions
diff --git a/lib/shellwords.rb b/lib/shellwords.rb index 0030f0784f..eb5fa2d226 100644 --- a/lib/shellwords.rb +++ b/lib/shellwords.rb @@ -6,7 +6,8 @@ # of the UNIX Bourne shell. # # The shellwords() function was originally a port of shellwords.pl, -# but modified to conform to POSIX / SUSv3 (IEEE Std 1003.1-2001 [1]). +# but modified to conform to the Shell & Utilities volume of the IEEE +# Std 1003.1-2008, 2016 Edition [1]. # # === Usage # @@ -55,7 +56,7 @@ # # === Resources # -# 1: {IEEE Std 1003.1-2004}[http://pubs.opengroup.org/onlinepubs/009695399/toc.htm] +# 1: {IEEE Std 1003.1-2008, 2016 Edition, the Shell & Utilities volume}[http://pubs.opengroup.org/onlinepubs/9699919799/utilities/contents.html] module Shellwords # Splits a string into an array of tokens in the same way the UNIX @@ -81,7 +82,14 @@ module Shellwords line.scan(/\G\s*(?>([^\s\\\'\"]+)|'([^\']*)'|"((?:[^\"\\]|\\.)*)"|(\\.?)|(\S))(\s|\z)?/m) do |word, sq, dq, esc, garbage, sep| raise ArgumentError, "Unmatched double quote: #{line.inspect}" if garbage - field << (word || sq || (dq || esc).gsub(/\\(.)/, '\\1')) + # 2.2.3 Double-Quotes: + # + # The <backslash> shall retain its special meaning as an + # escape character only when followed by one of the following + # characters when considered special: + # + # $ ` " \ <newline> + field << (word || sq || (dq && dq.gsub(/\\([$`"\\\n])/, '\\1')) || esc.gsub(/\\(.)/, '\\1')) if sep words << field field = String.new |