Escape special characters used in most unix shells to use it, eg. with system().
This differs from Ruby's escape in that it does not escape shell variables, e.g. $0.
# File lib/facets/standard/facets/shellwords.rb, line 12 def alt_escape(cmdline) cmdline.gsub(/([\\\t\| &`<>)('"])/) { |s| '\' << s } end
Escape special character used in DOS-based shells.
TODO: How to integrate with rest of system?
Use platform condition?
Use separate dos_xxx methods?
Put in separate PowerShellwords module?
CREDIT: Lavir the Whiolet
# File lib/facets/standard/facets/shellwords.rb, line 30 def dos_escape(cmdline) '"' + cmdline.gsub(/\\(?=\\*\")/, "\\\\\\").gsub(/\"/, "\\\"").gsub(/\\$/, "\\\\\\").gsub("%", "%%") + '"' end
# File lib/facets/standard/facets/shellwords.rb, line 17 def escape(cmdline) cmdline.gsub(/([\\\t\| &`<>)('"])/) { |s| '\' << s } end
The coolest little arguments parser in all of Rubyland.
CREDIT: Michel Martens
# File lib/facets/standard/facets/shellwords.rb, line 37 def run(argv, opts) argv = (String === argv ? shellwords(argv) : argv.to_a.dup) args = [] while argv.any? item = argv.shift flag = opts[item] if flag # Work around lambda semantics in 1.8.7. arity = [flag.arity, 0].max # Raise if there are not enough parameters # available for the flag. if argv.size < arity raise ArgumentError end # Call the lambda with N items from argv, # where N is the lambda's arity. flag.call(*argv.shift(arity)) else # Collect the items that don't correspond to # flags. args << item end end args end
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