Class: Squared::Workspace::Project::Support::OptionPartition

Inherits:
Object
  • Object
show all
Extended by:
Forwardable, Prompt, Shell, Common::Format
Includes:
Common::Shell
Defined in:
lib/squared/workspace/project/support/optionpartition.rb

Constant Summary

Constants included from Common

Common::ARG, Common::PATH

Instance Attribute Summary collapse

Class Method Summary collapse

Instance Method Summary collapse

Methods included from Common::Format

emphasize, enable_aixterm, enable_drawing, message, raise_error

Methods included from Common::Shell

basic_option, fill_option, line_width, quote_option, shell_bin, shell_escape, shell_option, shell_parse, shell_quote, shell_split

Constructor Details

#initialize(opts, list, target = JoinSet.new, project: nil, path: nil, strict: false, sep: '=', **kwargs, &blk) ⇒ OptionPartition

Returns a new instance of OptionPartition.



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# File 'lib/squared/workspace/project/support/optionpartition.rb', line 198

def initialize(opts, list, target = JoinSet.new, project: nil, path: nil, strict: false, sep: '=', **kwargs,
               &blk)
  @target = target.is_a?(Set) ? target : target.to_set
  @project = project
  @path = path || project&.path
  @strict = strict
  @sep = sep
  @errors = []
  @found = []
  parse(list, opts, **kwargs, &blk)
end

Instance Attribute Details

#errors ⇒ Object (readonly)

Returns the value of attribute errors.



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# File 'lib/squared/workspace/project/support/optionpartition.rb', line 184

def errors
  @errors
end

#extras ⇒ Object (readonly)

Returns the value of attribute extras.



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# File 'lib/squared/workspace/project/support/optionpartition.rb', line 184

def extras
  @extras
end

#found ⇒ Object (readonly)

Returns the value of attribute found.



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# File 'lib/squared/workspace/project/support/optionpartition.rb', line 184

def found
  @found
end

#path ⇒ Object (readonly)

Returns the value of attribute path.



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# File 'lib/squared/workspace/project/support/optionpartition.rb', line 184

def path
  @path
end

#project ⇒ Object (readonly)

Returns the value of attribute project.



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# File 'lib/squared/workspace/project/support/optionpartition.rb', line 184

def project
  @project
end

#sep ⇒ Object (readonly)

Returns the value of attribute sep.



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# File 'lib/squared/workspace/project/support/optionpartition.rb', line 184

def sep
  @sep
end

#target ⇒ Object (readonly)

Returns the value of attribute target.



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# File 'lib/squared/workspace/project/support/optionpartition.rb', line 184

def target
  @target
end

#values ⇒ Object (readonly)

Returns the value of attribute values.



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# File 'lib/squared/workspace/project/support/optionpartition.rb', line 184

def values
  @values
end

Class Method Details

.append(target, *args, delim: false, escape: false, quote: true, strip: nil, force: true, double: false, filter: nil, pass: nil) ⇒ Object 



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# File 'lib/squared/workspace/project/support/optionpartition.rb', line 23

def append(target, *args, delim: false, escape: false, quote: true, strip: nil, force: true, double: false,
           filter: nil, pass: nil, **)
  return if (ret = args.flatten(1)).empty?

  target << '--' if delim && !target.include?('--')
  if strip
    pat, s = Array(strip)
    ret.map! { |val| val.is_a?(String) ? val.gsub(pat, s || '') : val }
  end
  if filter
    ret, err = ret.partition { |val| filter.match?(val.to_s) }
    pass&.concat(err)
  end
  if block_given?
    ret = ret.each_with_object([]) do |val, out|
      arg = yield val
      case arg
      when String
        out << arg
      when nil, false
        pass&.push(val)
      else
        out << val
      end
    end
  end
  ret.map! do |val|
    next val if opt?(val)

    if !(pa = val.is_a?(Pathname)) && escape
      shell_escape(val, quote: quote, double: double)
    elsif quote || pa
      shell_quote(val, force: force, double: double)
    else
      val
    end
  end
  if target.is_a?(Set)
    target.merge(ret)
  else
    target.concat(ret)
  end
  ret
end

.arg?(target, *args, value: false) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/squared/workspace/project/support/optionpartition.rb', line 138

def arg?(target, *args, value: false, **)
  r, s = args.partition { |val| val.is_a?(Regexp) }
  r << matchopts(s, value) unless s.empty?
  a = target.to_a
  if (n = a.index('--'))
    a = a[0..n]
  end
  r.any? { |pat| a.any?(pat) }
end

.clear(target, opts, pass: true, strict: false, styles: nil, **kwargs) ⇒ Object 



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# File 'lib/squared/workspace/project/support/optionpartition.rb', line 68

def clear(target, opts, pass: true, strict: false, styles: nil, **kwargs)
  return if opts.empty?

  kwargs[:subject] ||= target.first.stripext
  kwargs[:hint] ||= 'unrecognized'
  append(target, opts, delim: true) if kwargs.delete(:append)
  warn log_warn(opts.join(', '), pass: true, **kwargs)
  exit 1 unless !strict && (pass || confirm("Run? [#{sub_style(target, styles)}]", 'N'))
end

.delete_key(target, *args, value: false, reverse: false, count: -1)) ⇒ Object 



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# File 'lib/squared/workspace/project/support/optionpartition.rb', line 78

def delete_key(target, *args, value: false, reverse: false, count: -1)
  args.each_with_object([]) do |val, out|
    next if (opts = target.grep(matchopt(val, value))).empty?

    opts = opts.first(count) if count >= 0
    opts.send(reverse ? :reverse_each : :each) { |key| target.delete(key) }
    out.concat(opts)
  end
end

.opt?(val) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/squared/workspace/project/support/optionpartition.rb', line 148

def opt?(val)
  return false unless val.is_a?(String)

  val.start_with?('-') && (OPT_NAME.match?(val) || OPT_VALUE.match?(val) || OPT_SINGLE.match?(val))
end

.parse_arg!(name, val) ⇒ Object 



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# File 'lib/squared/workspace/project/support/optionpartition.rb', line 129

def parse_arg!(name, val)
  return unless val.is_a?(String)

  a, b = name.size == 1 ? %w[- *] : %w[(?:--) +]
  return unless val =~ /\A#{a}?#{Regexp.escape(name)}(=|\s#{b})(["'])?(.+)(?(2)\2\z|\z)/m

  [name, $3, $2 || (name.size == 1 && $1.empty? ? true : '')]
end

.parse_option(val) ⇒ Object 



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# File 'lib/squared/workspace/project/support/optionpartition.rb', line 117

def parse_option(val)
  val = val.strip
  return [val, nil, ''] unless (i = val.index('='))

  last = val[i.succ..-1].strip
  if last =~ /\A(["'])(.*)\1\z/m
    last = $2
    quote = $1
  end
  [val[0..i.pred], last, quote || '']
end

.pattern?(val) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/squared/workspace/project/support/optionpartition.rb', line 154

def pattern?(val)
  val.start_with?('\A', '^') || val.end_with?('\z', '$') ||
  val.match?(/[.)][*+?]|\(\?[:=!><]|\\[dsw\d]|\[.+\]|\{\d+,?\d*\}/i)
end

.select(list, bare: true, no: true, single: false, double: false) ⇒ Object 



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# File 'lib/squared/workspace/project/support/optionpartition.rb', line 94

def select(list, bare: true, no: true, single: false, double: false)
  ret = bare ? list.grep_v(/=/) : list.grep(/=/).map { |val| val.split('=', 2).first }
  ret.map! { |val| val.split('|', 2).last }
  ret = ret.grep_v(/\Ano-/) unless no
  return ret if single == double

  ret.select { |val| single ? val.size == 1 : val.size > 1 }
end

.strip(val) ⇒ Object 



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# File 'lib/squared/workspace/project/support/optionpartition.rb', line 88

def strip(val)
  val = shell_split val if val.is_a?(String)
  Array(val).map { |s| s.sub(OPT_SINGLE, '\1=\2').sub(OPT_VALUE, '\1=\2').sub(OPT_NAME, '\2') }
            .reject(&:empty?)
end

.uniq!(list, pass = []) ⇒ Object 



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# File 'lib/squared/workspace/project/support/optionpartition.rb', line 103

def uniq!(list, pass = [])
  keys = {}
  list.each_with_index do |val, i|
    j = val =~ OPT_VALUE ? $1 : val
    (keys[j] ||= []) << i unless pass.include?(j)
  end
  data = keys.map { |item| item[1].size > 1 ? item[1][0..-2] : [] }.reject(&:empty?)
  return if data.empty?

  data.each { |key| key.each { |i| list[i] = nil } }
  list.compact!
  list
end

Instance Method Details

#add_first(fallback = nil, prefix: nil, path: false, escape: false, reverse: false, expect: false, **kwargs) ⇒ Object 



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# File 'lib/squared/workspace/project/support/optionpartition.rb', line 566

def add_first(fallback = nil, prefix: nil, path: false, escape: false, reverse: false, expect: false,
              **kwargs)
  val = (reverse ? pop : shift) || fallback
  if val
    temp = val
    val = val.delete_prefix(prefix) if prefix && val.is_a?(String)
    unless block_given? && !(val = yield val).is_a?(String)
      if path
        add_path(val, **kwargs)
      elsif escape
        add shell_escape(val, **kwargs)
      elsif kwargs[:quote]
        add_quote(val, **kwargs)
      else
        add val
      end
      found << temp unless temp == fallback
    end
  elsif expect
    raise(expect.is_a?(String) ? expect : 'no value queued')
  end
  self
end

#add_option(flag, val = nil, **kwargs) ⇒ Object 



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# File 'lib/squared/workspace/project/support/optionpartition.rb', line 561

def add_option(flag, val = nil, **kwargs)
  add shell_option(flag, val, **kwargs)
  self
end

#add_path(*args, option: nil, force: true, double: false, **kwargs) ⇒ Object 



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# File 'lib/squared/workspace/project/support/optionpartition.rb', line 538

def add_path(*args, option: nil, force: true, double: false, **kwargs)
  if args.empty?
    list = grep(String)
    found.concat(list)
    list.map! { |val| path + val } if path
    append(list, force: force, **kwargs)
  else
    val = path ? path.join(*args) : File.join(*args)
    if option
      add quote_option(option, val, double: double)
    else
      add shell_quote(val, option: false, force: force, double: double)
    end
  end
  self
end

#add_quote(*args, **kwargs) ⇒ Object 



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# File 'lib/squared/workspace/project/support/optionpartition.rb', line 555

def add_quote(*args, **kwargs)
  kwargs.delete(:quote)
  merge(args.compact.map { |s| s == '--' || OptionPartition.opt?(s) ? s : shell_quote(s, **kwargs) })
  self
end

#adjoin(*args, with: nil, start: false) ⇒ Object 



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# File 'lib/squared/workspace/project/support/optionpartition.rb', line 490

def adjoin(*args, with: nil, start: false)
  index = -1
  temp = compact
  if with
    pat = case with
          when String, Symbol
            /\A#{Regexp.escape(with)}\z/
          when Array
            OptionPartition.send(:matchopts, with)
          else
            with
          end
    temp.each_with_index do |val, i|
      if val.to_s.match?(pat)
        index = i + (start.is_a?(Numeric) ? start : 1)
        break
      end
    end
  else
    temp.each_with_index do |val, i|
      if index == 0
        next unless val.is_a?(String) && val.start_with?('-')

        index = i
        break
      elsif i > 0 && !val.to_s.start_with?('-')
        if start
          index = i + (start.is_a?(Numeric) ? start : 1)
          break
        end
        index = 0
      end
    end
  end
  if index > 0
    if args.empty?
      args = dup
      reset
    else
      args.each { |val| remove val }
    end
    args = temp[0, index] + args + temp[index..-1]
    target.clear
  end
  merge args
  self
end

#append(*args, clear: false, **kwargs, &blk) ⇒ Object 



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# File 'lib/squared/workspace/project/support/optionpartition.rb', line 398

def append(*args, clear: false, **kwargs, &blk)
  args = clear ? extras.dup.tap { extras.clear } : extras if args.empty?
  pass = kwargs[:pass] ||= []
  OptionPartition.append(target, *args, **kwargs, &blk)
  errors.concat(pass)
  self
end

#append?(key, val = nil, type: nil, force: false, sep: '=', **kwargs) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/squared/workspace/project/support/optionpartition.rb', line 689

def append?(key, val = nil, type: nil, force: false, sep: '=', **kwargs)
  return false unless force || !arg?(key)

  val = yield self if block_given?
  return false unless val

  type ||= :quote if kwargs.empty?
  add case type
      when :quote
        quote_option(key, val, sep: sep)
      when :basic
        basic_option(key, val, sep: sep)
      else
        shell_option(key, val, sep: sep, **kwargs)
      end
  true
end

#append_any(*args, escape: false, **kwargs) ⇒ Object 



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# File 'lib/squared/workspace/project/support/optionpartition.rb', line 406

def append_any(*args, escape: false, **kwargs)
  quote = kwargs.fetch(:quote, true)
  (args.empty? ? extras : args.flatten(1)).each do |val|
    if block_given?
      temp = val
      val = yield val
      if val.is_a?(Array)
        found << temp
        k, v, q = val
        add_option(k, v, escape: escape, double: q == '"', merge: q == true, **kwargs)
        next
      end
    end
    next unless val.is_a?(String)

    if exist?(val)
      add_path(val, **kwargs)
    elsif escape
      add shell_escape(val, **kwargs)
    elsif quote
      add_quote(val, **kwargs)
    else
      add val
    end
    found << (temp || val) if args.empty?
  end
  self
end

#arg?(*args, **kwargs) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/squared/workspace/project/support/optionpartition.rb', line 707

def arg?(*args, **kwargs)
  OptionPartition.arg?(target, *args, **kwargs)
end

#clear(opts = nil, errors: false, strict: @strict, **kwargs) ⇒ Object 



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# File 'lib/squared/workspace/project/support/optionpartition.rb', line 477

def clear(opts = nil, errors: false, strict: @strict, **kwargs)
  styles = project.theme[:inline] if project
  if errors
    OptionPartition.clear(target, @errors, strict: strict, styles: styles, **kwargs)
    @errors.clear
    return self unless opts
  end
  opts ||= extras
  OptionPartition.clear(target, opts - found, strict: strict, styles: styles, **kwargs)
  opts.clear
  self
end

#delete_key(*args, **kwargs) ⇒ Object 



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# File 'lib/squared/workspace/project/support/optionpartition.rb', line 435

def delete_key(*args, **kwargs)
  OptionPartition.delete_key(target, *args, **kwargs)
  self
end

#delim ⇒ Object 



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# File 'lib/squared/workspace/project/support/optionpartition.rb', line 596

def delim
  add '--'
  self
end

#detach ⇒ Object 



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# File 'lib/squared/workspace/project/support/optionpartition.rb', line 590

def detach
  ret = extras
  @extras = []
  ret
end

#exist?(*args, add: false, first: false, last: false, glob: false) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/squared/workspace/project/support/optionpartition.rb', line 711

def exist?(*args, add: false, first: false, last: false, glob: false)
  return !args.first.nil? && with_glob?(File.join(*args), glob) unless args.empty?

  if first || last
    return false unless (val = first ? self.first : self.last)

    with_glob?(val, glob).tap do |ret|
      next unless add && ret

      add_first(path: true, reverse: !first)
    end
  else
    each_with_index do |val, i|
      next unless with_glob?(val, glob)

      if add
        remove_at i
        add_path val
      end
      return true
    end
    false
  end
end

#last(val = nil, &blk) ⇒ Object 



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# File 'lib/squared/workspace/project/support/optionpartition.rb', line 601

def last(val = nil, &blk)
  unless block_given?
    case val
    when nil
      return extras.last
    when Numeric
      return extras.last(val)
    when String, Array, Regexp
      val = OptionPartition.send(:matchopts, val) unless val.is_a?(Regexp)
      blk = proc { |s| s&.match?(val) }
    else
      raise TypeError, "unknown: #{val}"
    end
  end
  ret = find_all(&blk)
  unless ret.empty?
    ret = case val
          when nil
            ret.first(1)
          when Numeric
            ret.first(val)
          else
            ret
          end
    ret.each do |opt|
      delete opt
      add opt
    end
  end
  val.nil? ? ret.first : ret
end

#parse(list, opts = extras, no: nil, single: nil, args: false, multiple: nil, first: nil, underscore: nil, stdin: false, &blk) ⇒ Object 



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# File 'lib/squared/workspace/project/support/optionpartition.rb', line 210

def parse(list, opts = extras, no: nil, single: nil, args: false, multiple: nil, first: nil, underscore: nil,
          stdin: false, &blk)
  @extras = []
  @values = []
  bare = []
  e = []
  b = []
  m = []
  p = []
  q = []
  qq = []
  i = []
  f = []
  si = []
  bl = []
  ml = []
  sw = {}
  se = {}
  list.flat_map do |val|
    x, y = val.split('|', 2)
    if y
      if (n = val.index('='))
        x += val[n..-1]
      end
      [x, y]
    else
      x
    end
  end
  .each do |val|
    if val.size > 1 && val =~ /^\{([^},]*)(?:,([^}]+))?\}(.+)$/
      op1 = $1 unless $1.empty?
      op2 = $2
      val = $3
    end
    if (n = val.index('='))
      flag = val[0, n]
      enum = flag.split(':')
      mod = if enum.size > 1
              pre = enum.shift
              enum.map { |s| "#{pre}:#{s}" }
            else
              [flag]
            end
      case val[n.succ]
      when 'e'
        e.concat(mod)
      when 'b'
        b.concat(mod)
      when 'm'
        m.concat(mod)
      when 'q'
        qq.concat(mod) if val[n + 2] == 'q'
        q.concat(mod)
      when 'p'
        p.concat(mod)
      when 'i'
        i.concat(mod)
      when 'f'
        f.concat(mod)
      when 'n'
        si.concat(mod)
      when 'v'
        @values.concat(mod.map { |s| Regexp.escape(s) })
      when '!'
        bl.concat(mod)
      when '+'
        ml.concat(mod)
        bare.concat(mod)
      else
        next
      end
      m.concat(mod) if val[n + 2] == 'm'
      bare.concat(mod) if val.end_with?('?')
    else
      bare << val
      mod = [val]
    end
    mod.each do |key|
      sw[key] = op1 if op1
      se[key] = op2 if op2
    end
  end
  no = (no || []).map { |val| (n = val.index('=')) ? val[0, n] : val }
  bare.concat(no)
  if underscore
    tr = ->(a) { a.map { |val| val.tr('-', '_') } }
    @values.concat(tr.call(@values))
    bare.concat(tr.call(bare))
    e.concat(tr.call(e))
    b.concat(tr.call(b))
    m.concat(tr.call(m))
    p.concat(tr.call(p))
    q.concat(tr.call(q))
    qq.concat(tr.call(qq))
    i.concat(tr.call(i))
    f.concat(tr.call(f))
    si.concat(tr.call(si))
    bl.concat(tr.call(bl))
    ml.concat(tr.call(ml))
    no.concat(tr.call(no))
  end
  if target.is_a?(JoinSet)
    target.multiple = multiple if multiple
    target.multiple = ml.map { |val| val.size == 1 ? "-#{val}" : "--#{val}" }
  end
  numtype = [
    [i, /\A\d+\z/],
    [f, /\A\d*(?:\.\d+)?\z/],
    [si, /\A-?\d+\z/]
  ].freeze
  numcheck = ->(k, v) { numtype.any? { |flag, pat| flag.include?(k) && v.match?(pat) } }
  skip = false
  opts.each do |opt|
    if stdin
      if stdin == -1
        add_path opt if exist?(opt)
        next
      elsif opt == '-'
        add '-'
        stdin = -1
        next
      end
    end
    next skip = true if opt == '--'
    next push opt if skip

    if single&.match?(opt)
      add "-#{opt}"
    elsif bare.include?(opt)
      if sw[opt]
        add "#{sw[opt]}#{opt}"
      else
        add(opt.size == 1 ? "-#{opt}" : "--#{opt}")
      end
    elsif opt.start_with?(/no[-_]/) && no.include?(s = opt[3..-1])
      add "--no-#{s}"
    else
      if opt =~ OPT_VALUE
        key = $1
        val = $2
        has = lambda do |a|
          return true if a.include?(key)
          return false unless (k = a.find { |s| s.end_with?(':*') })

          key.start_with?(k.chomp('*')) && !key.end_with?(':')
        end
        kwargs = { sep: se[key] || sep, merge: has.call(m), switch: sw[key] }
        if has.call(e) || (has.call(bl) && %w[true false].include?(val))
          add shell_option(key, val, **kwargs)
        elsif has.call(q)
          add quote_option(key, val, double: has.call(qq), **kwargs)
        elsif has.call(p)
          if val.match?(/\A(["']).+\1\z/)
            add shell_option(key, val, escape: false, **kwargs)
          elsif path
            add quote_option(key, path + val, **kwargs)
          else
            push opt
          end
        elsif kwargs[:merge] || has.call(b) || numcheck.call(key, val) || se[key] || sw[key]
          add basic_option(key, val, **kwargs)
        else
          push opt
        end
        opt = key
      else
        push opt
        skip = true if args
      end
      skip = true if first&.any? { |pat| pat.is_a?(Regexp) ? opt.match?(pat) : !opt.include?(pat) }
    end
  end
  @values = @values.empty? ? /\A\s+\z/ : /\A(#{@values.join('|')})#{sep}(.+)\z/m
  @extras.each_with_index(&blk) if block_given?
  self
end

#readline(msg, fallback = nil, option: nil, quote: false, force: true, double: false) ⇒ Object 



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# File 'lib/squared/workspace/project/support/optionpartition.rb', line 659

def readline(msg, fallback = nil, option: nil, quote: false, force: true, double: false)
  begin
    require 'readline' unless defined?(Readline)
    ret = Readline.readline("#{msg}#{force ? ':' : '?'} ", false).strip
  rescue LoadError
    raise unless (ret = fallback) || !force
  rescue Interrupt
    exit(force ? 1 : 0)
  else
    exit 1 if ret.empty? && !(ret = fallback) && force
  end
  return unless ret

  if option
    add quote_option(option, ret, double: double)
  elsif quote
    add shell_quote(ret, option: false, double: double)
  else
    add ret
  end
  ret
end

#reset(errors: false) ⇒ Object 



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# File 'lib/squared/workspace/project/support/optionpartition.rb', line 682

def reset(errors: false)
  extras.clear
  found.clear
  clear(errors: true) if errors
  self
end

#splice(*exclude, quote: true, delim: true, path: false, pattern: false, &blk) ⇒ Object 



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# File 'lib/squared/workspace/project/support/optionpartition.rb', line 633

def splice(*exclude, quote: true, delim: true, path: false, pattern: false, &blk)
  temp, other = if block_given?
                  partition(&blk)
                else
                  exclude.map! { |pat| Regexp.new(pat) }
                  partition do |val|
                    val = val.to_s
                    next if pattern && OptionPartition.pattern?(val)

                    exclude.none? { |pat| val.match?(pat) }
                  end
                end
  unless temp.empty?
    add '--' if delim
    extras.clear
    concat other
    if path
      temp.each { |val| add_path(val) }
    else
      temp.quote! if quote
      merge temp
    end
  end
  self
end

#swap(opts = nil, &blk) ⇒ Object 



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# File 'lib/squared/workspace/project/support/optionpartition.rb', line 388

def swap(opts = nil, &blk)
  unless opts
    opts = found
    @found = []
  end
  opts.sort!(&blk) if block_given?
  @extras = opts
  self
end

#uniq(list) ⇒ Object 



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# File 'lib/squared/workspace/project/support/optionpartition.rb', line 472

def uniq(list)
  ignore = map { |val| nameonly(val) }
  list.reject { |val| ignore.include?(s = nameonly(val)) || any?(OptionPartition.send(:matchopt, s)) }
end

#uniq!(list) ⇒ Object 



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# File 'lib/squared/workspace/project/support/optionpartition.rb', line 736

def uniq!(list)
  list = uniq list
  return if list.empty?

  concat list
  self
end

#values_of(*args, strict: true, first: false, last: false) ⇒ Object 



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# File 'lib/squared/workspace/project/support/optionpartition.rb', line 440

def values_of(*args, strict: true, first: false, last: false)
  eq, s = strict ? [sep, '[^ ]+'] : ['(?:=| +)', '[^-][^ ]*']
  g = ["\"((?:[^\"]|(?<=\\\\)\"(?!$#{'| ' if windows?}))*)\""]
  g << "'((?:[^']|'\\\\'')*)'" unless windows?
  g << "(#{s})"
  list = args.map do |opt|
    if opt.size == 1
      /(?:\A| )-#{opt} ?([^ ]+)/
    else
      /(?:\A| )--#{opt + eq}(?:#{g.join('|')})/
    end
  end
  ret = []
  target.each do |opt|
    list.each do |pat|
      next unless opt =~ pat

      ret << ($1 || $2 || $3)
      break
    end
  end
  return ret unless first || last

  if last.is_a?(Numeric)
    ret.last(last)
  elsif last
    ret.last
  else
    first.is_a?(Numeric) ? ret.first(first) : ret.first
  end
end