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\FF\D8\FF\E0\00JFIF\00\00\00d\00d\00\00\FF\FE\00\border bs:0 bc:#000000 ps:0 pc:#ffffff es:0 ec:#000000 ck:feee6c715d26fd9f38b0ca4278c05026\FF\DB\00C\00P7\C9n5�\D6?\BD�\9Ds\EBp\9F[`8m\B7)o\B5\E8\E6I\99\FE3]]A2\BA\8Cw\D6E\93\\DEv\C8\009\F2\F1NI?uc\\F5\EA\96k\xN<~buv\EA\C8\D7 \8B\84\CEcxI\BBg\AE\9E=\D6+n\EC\80\C8A\8C\AE\EB\CF\D5\DA\E9"2\A4\B9j5\EB\F3W\B63\96\B30Yu\DA\FC8\ED\DF\E7Ms\FB\F1\8E\B3\FA\EA\E8\E6(\883zs\F2_\8DFk\8Bh \00\8C\DCw\D3R\B5+6X\BA\B2\C4j\AB0\B4\FCMw\C2I\8E\9B\E3\A9~9u\FA\D3l\80\C8%p\EE\FDn2� \00$\FEj\C4e\A9\DB\~\95\A7\A5\80EK\BB\8DDsP\00@@AD'k\CF\E8\DB\D2(\80\9AK\D3\85\D6lb\F2\BA\8C*\80\00)\95 59\A3R:\F3\CE"\B6\80\88\00\00i1u4�\E9\F2�\A6\A2\FACM\93WMb*\E0*\00\00\00\00\00(\A8\80\00\00\80\00\00\00\00\00\00\00\00\00\FF\D9 C/// # frozen-string-literal: true ## # == Manipulates strings like the 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 the Shell & Utilities volume of the IEEE # Std 1003.1-2008, 2016 Edition [1]. # # === Usage # # You can use Shellwords to parse a string into a Bourne shell friendly Array. # # require 'shellwords' # # argv = Shellwords.split('three blind "mice"') # argv #=> ["three", "blind", "mice"] # # Once you've required Shellwords, you can use the #split alias # String#shellsplit. # # argv = "see how they run".shellsplit # argv #=> ["see", "how", "they", "run"] # # Be careful you don't leave a quote unmatched. # # argv = "they all ran after the farmer's wife".shellsplit # #=> ArgumentError: Unmatched double quote: ... # # In this case, you might want to use Shellwords.escape, or its alias # String#shellescape. # # This method will escape the String for you to safely use with a Bourne shell. # # argv = Shellwords.escape("special's.txt") # argv #=> "special\\'s.txt" # system("cat " + argv) # # Shellwords also comes with a core extension for Array, Array#shelljoin. # # argv = %w{ls -lta lib} # system(argv.shelljoin) # # You can use this method to create an escaped string out of an array of tokens # separated by a space. In this example we used the literal shortcut for # Array.new. # # === Authors # * Wakou Aoyama # * Akinori MUSHA # # === Contact # * Akinori MUSHA (current maintainer) # # === Resources # # 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 # Bourne shell does. # # argv = Shellwords.split('here are "two words"') # argv #=> ["here", "are", "two words"] # # Note, however, that this is not a command line parser. Shell # metacharacters except for the single and double quotes and # backslash are not treated as such. # # argv = Shellwords.split('ruby my_prog.rb | less') # argv #=> ["ruby", "my_prog.rb", "|", "less"] # # String#shellsplit is a shortcut for this function. # # argv = 'here are "two words"'.shellsplit # argv #=> ["here", "are", "two words"] def shellsplit(line) words = [] field = String.new 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 # 2.2.3 Double-Quotes: # # The shall retain its special meaning as an # escape character only when followed by one of the following # characters when considered special: # # $ ` " \ field << (word || sq || (dq && dq.gsub(/\\([$`"\\\n])/, '\\1')) || esc.gsub(/\\(.)/, '\\1')) if sep words << field field = String.new 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. +str+ can be a non-string object that responds to # +to_s+. # # Note that a resulted string should be used unquoted and is not # intended for use in double quotes nor in single quotes. # # argv = Shellwords.escape("It's better to give than to receive") # argv #=> "It\\'s\\ better\\ to\\ give\\ than\\ to\\ receive" # # String#shellescape is a shorthand for this function. # # argv = "It's better to give than to receive".shellescape # argv #=> "It\\'s\\ better\\ to\\ give\\ than\\ to\\ receive" # # # Search files in lib for method definitions # pattern = "^[ \t]*def " # open("| grep -Ern #{pattern.shellescape} lib") { |grep| # grep.each_line { |line| # file, lineno, matched_line = line.split(':', 3) # # ... # } # } # # It is the caller's responsibility to encode the string in the right # encoding for the shell environment where this string is used. # # Multibyte characters are treated as multibyte characters, not as bytes. # # Returns an empty quoted String if +str+ has a length of zero. def shellescape(str) str = str.to_s # An empty argument will be skipped, so return empty quotes. return "''".dup if str.empty? str = str.dup # Treat multibyte characters as is. It is the caller's responsibility # to encode the string in the right encoding for the shell # environment. str.gsub!(/[^A-Za-z0-9_\-.,:+\/@\n]/, "\\\\\\&") # A LF cannot be escaped with a backslash because a backslash + LF # combo is regarded as a line continuation and simply ignored. str.gsub!(/\n/, "'\n'") return str end m