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* lib/shellwords.rb: fix for blank but not empty string.

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fixed: [ruby-dev:27663]


git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@9521 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
This commit is contained in:
nobu 2005-11-10 12:05:57 +00:00
parent c51b9bacec
commit 7145ec7bb2
2 changed files with 10 additions and 9 deletions
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5
ChangeLog
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@ -1,3 +1,8 @@
Thu Nov 10 21:05:03 2005 Nobuyoshi Nakada <nobu@ruby-lang.org>
* lib/shellwords.rb: fix for blank but not empty string.
fixed: [ruby-dev:27663]
Wed Nov 9 08:39:38 2005 Nobuyoshi Nakada <nobu@ruby-lang.org>
* lib/shellwords.rb: refactored. [ruby-core:06581]

14
lib/shellwords.rb
View file

@ -26,22 +26,18 @@ module Shellwords
# See the +Shellwords+ module documentation for an example.
#
def shellwords(line)
line = String.new(line) rescue
raise(ArgumentError, "Argument must be a string")
words = []
field = ''
last = 0
sep = nil
line.scan(/\G\s*(?:([^\s\\\'\"]+)|'([^\']*)'|"((?:[^\"\\]|\\.)*)"|(\\.?))(\s+|\z)?/m) do
last = $~.end(0)
sep = $~.begin(5)
field << ($1 || $2 || ($3 || $4).gsub(/\\(?=.)/, ''))
word = sq = dq = esc = garbage = sep = nil
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(/\\(?=.)/, ''))
if sep
words << field
field = ''
end
end
raise ArgumentError, "Unmatched double quote: #{line}" if line[last]
words
end