diff options
author | shyouhei <shyouhei@b2dd03c8-39d4-4d8f-98ff-823fe69b080e> | 2007-08-15 19:08:43 +0000 |
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committer | shyouhei <shyouhei@b2dd03c8-39d4-4d8f-98ff-823fe69b080e> | 2007-08-15 19:08:43 +0000 |
commit | d464704f111d211c1f1ff9ef23ef1d755054be00 (patch) | |
tree | b58b17b645dc463322e5fca57fe282360db659c9 /ruby_1_8_5/lib/shellwords.rb | |
parent | e4f06b3f2dec4b5d6334c5e9907e1cecbf649fc4 (diff) |
add tag v1_8_5_54
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/tags/v1_8_5_54@12952 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
Diffstat (limited to 'ruby_1_8_5/lib/shellwords.rb')
-rw-r--r-- | ruby_1_8_5/lib/shellwords.rb | 60 |
1 files changed, 60 insertions, 0 deletions
diff --git a/ruby_1_8_5/lib/shellwords.rb b/ruby_1_8_5/lib/shellwords.rb new file mode 100644 index 0000000000..e87b9e656b --- /dev/null +++ b/ruby_1_8_5/lib/shellwords.rb @@ -0,0 +1,60 @@ +# +# shellwords.rb: Split text into an array of tokens a la UNIX shell +# + +# +# This module is originally a port of shellwords.pl, but modified to +# conform to POSIX / SUSv3 (IEEE Std 1003.1-2001). +# +# Examples: +# +# require 'shellwords' +# words = Shellwords.shellwords(line) +# +# or +# +# require 'shellwords' +# include Shellwords +# words = shellwords(line) +# +module Shellwords + + # + # Split text into an array of tokens in the same way the UNIX Bourne + # shell does. + # + # See the +Shellwords+ module documentation for an example. + # + def shellwords(line) + line = String.new(line) rescue + raise(ArgumentError, "Argument must be a string") + line.lstrip! + words = [] + until line.empty? + field = '' + loop do + if line.sub!(/\A"(([^"\\]|\\.)*)"/, '') then + snippet = $1.gsub(/\\(.)/, '\1') + elsif line =~ /\A"/ then + raise ArgumentError, "Unmatched double quote: #{line}" + elsif line.sub!(/\A'([^']*)'/, '') then + snippet = $1 + elsif line =~ /\A'/ then + raise ArgumentError, "Unmatched single quote: #{line}" + elsif line.sub!(/\A\\(.)?/, '') then + snippet = $1 || '\\' + elsif line.sub!(/\A([^\s\\'"]+)/, '') then + snippet = $1 + else + line.lstrip! + break + end + field.concat(snippet) + end + words.push(field) + end + words + end + + module_function :shellwords +end |