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Diffstat (limited to 'trunk/lib/shellwords.rb')
| -rw-r--r-- | trunk/lib/shellwords.rb | 156 |
1 files changed, 0 insertions, 156 deletions
diff --git a/trunk/lib/shellwords.rb b/trunk/lib/shellwords.rb deleted file mode 100644 index f1300612bb..0000000000 --- a/trunk/lib/shellwords.rb +++ /dev/null @@ -1,156 +0,0 @@ -# -# shellwords.rb: Manipulates strings a la UNIX Bourne shell -# - -# -# This module manipulates strings according to the word parsing rules -# 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). -# -# Authors: -# - Wakou Aoyama -# - Akinori MUSHA <knu@iDaemons.org> -# -# Contact: -# - Akinori MUSHA <knu@iDaemons.org> (current maintainer) -# -module Shellwords - # - # Splits a string into an array of tokens in the same way the UNIX - # Bourne shell does. - # - # argv = Shellwords.split('here are "two words"') - # argv #=> ["here", "are", "two words"] - # - # +String#shellsplit+ is a shorthand for this function. - # - # argv = 'here are "two words"'.shellsplit - # argv #=> ["here", "are", "two words"] - # - def shellsplit(line) - words = [] - field = '' - 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 - words - end - - alias shellwords shellsplit - - module_function :shellsplit, :shellwords - - class << self - alias split shellsplit - end - - # - # Escapes a string so that it can be safely used in a Bourne shell - # command line. - # - # Note that a resulted string should be used unquoted and is not - # intended for use in double quotes nor in single quotes. - # - # open("| grep #{Shellwords.escape(pattern)} file") { |pipe| - # # ... - # } - # - # +String#shellescape+ is a shorthand for this function. - # - # open("| grep #{pattern.shellescape} file") { |pipe| - # # ... - # } - # - def shellescape(str) - # An empty argument will be skipped, so return empty quotes. - return "''" if str.empty? - - str = str.dup - - # Process as a single byte sequence because not all shell - # implementations are multibyte aware. - str.gsub!(/([^A-Za-z0-9_\-.,:\/@\n])/n, "\\\\\\1") - - # A LF cannot be escaped with a backslash because a backslash + LF - # combo is regarded as line continuation and simply ignored. - str.gsub!(/\n/, "'\n'") - - return str - end - - module_function :shellescape - - class << self - alias escape shellescape - end - - # - # Builds a command line string from an argument list +array+ joining - # all elements escaped for Bourne shell and separated by a space. - # - # open('|' + Shellwords.join(['grep', pattern, *files])) { |pipe| - # # ... - # } - # - # +Array#shelljoin+ is a shorthand for this function. - # - # open('|' + ['grep', pattern, *files].shelljoin) { |pipe| - # # ... - # } - # - def shelljoin(array) - array.map { |arg| shellescape(arg) }.join(' ') - end - - module_function :shelljoin - - class << self - alias join shelljoin - end -end - -class String - # - # call-seq: - # str.shellsplit => array - # - # Splits +str+ into an array of tokens in the same way the UNIX - # Bourne shell does. See +Shellwords::shellsplit+ for details. - # - def shellsplit - Shellwords.split(self) - end - - # - # call-seq: - # str.shellescape => string - # - # Escapes +str+ so that it can be safely used in a Bourne shell - # command line. See +Shellwords::shellescape+ for details. - # - def shellescape - Shellwords.escape(self) - end -end - -class Array - # - # call-seq: - # array.shelljoin => string - # - # Builds a command line string from an argument list +array+ joining - # all elements escaped for Bourne shell and separated by a space. - # See +Shellwords::shelljoin+ for details. - # - def shelljoin - Shellwords.join(self) - end -end |