Class: ShellOpts::Grammar::IdrNode

Inherits:
Node
  • Object
show all
Defined in:
lib/shellopts/dump.rb,
lib/shellopts/parser.rb,
lib/shellopts/grammar.rb

Direct Known Subclasses

Command, Option

Constant Summary

Constants inherited from Node

Node::ALLOWED_PARENTS

Instance Attribute Summary collapse

Attributes inherited from Node

#children, #parent, #token

Instance Method Summary collapse

Methods inherited from Node

#analyzer_error, #ancestors, #dump_ast, #dump_attrs, #dump_idr, #initialize, #inspect, #parents, parse, #parser_error, #puts_help, #puts_usage, #remove_arg_descr_nodes, #remove_arg_spec_nodes, #remove_brief_nodes, #traverse

Constructor Details

This class inherits a constructor from ShellOpts::Grammar::Node

Instance Attribute Details

#attr ⇒ Object (readonly)

The associated attribute (Symbol) in the parent command object. nil if #ident is a reserved word. Initialized by the parser



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# File 'lib/shellopts/grammar.rb', line 87

def attr
  @attr
end

#command ⇒ Object (readonly)

Command of this object (nil for the top-level Program object). This is different from #parent when a subcommand is nested textually on a higher level than its supercommand. Initialized by the analyzer



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# File 'lib/shellopts/grammar.rb', line 51

def command
  @command
end

#ident ⇒ Object

Canonical identifier (Symbol) of the object

For options, this is the canonical name of the objekt without the initial ‘-’ or ‘–’. For commands it is the command name including the suffixed exclamation mark. Both options and commands have internal dashes replaced with underscores. Initialized by the parser

Note that the analyzer fails with an an error if both –with-separator and –with_separator are used because they would both map to :with_separator



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# File 'lib/shellopts/grammar.rb', line 75

def ident
  @ident
end

#name ⇒ Object (readonly)

Canonical name (String) of the object

This is the name of the object as the user sees it. For options it is the name of the first long option or the name of the first short option if there is no long option name. For commands it is the name without the exclamation mark. Initialized by the parser



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# File 'lib/shellopts/grammar.rb', line 83

def name
  @name
end

#path ⇒ Object (readonly)

Path from Program object and down to this node. Array of identifiers. Empty for the Program object. Initialized by the parser



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# File 'lib/shellopts/grammar.rb', line 63

def path
  @path
end

Instance Method Details

#dump_doc ⇒ Object 



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# File 'lib/shellopts/dump.rb', line 4

def dump_doc
  puts "#{self.class} #{ident}"
  indent {
    children.each(&:dump_doc)
  }
end

#parse ⇒ Object

Assumes that @name and @path has been defined



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# File 'lib/shellopts/parser.rb', line 19

def parse
#       @ident = @path.last || :!
#       @attr = ::ShellOpts::Command::RESERVED_OPTION_NAMES.include?(ident.to_s) ? nil : ident
#       @uid = parent && @path.join(".").sub(/!\./, ".") # uid is nil for the Program object
end

#set_name(name, path) ⇒ Object 



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# File 'lib/shellopts/grammar.rb', line 89

def set_name(name, path)
  @name = name.to_s
  @path = path
  @ident = @path.last || :!
  @attr = ::ShellOpts::Command::RESERVED_OPTION_NAMES.include?(@ident.to_s) ? nil : @ident
end

#uid ⇒ Object

Unique identifier of node (String) within the context of a program. nil for the Program object. It is the dot-joined elements of path with internal exclamation marks removed (eg. “cmd.opt” or “cmd.cmd!”). Initialize by the analyzer



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# File 'lib/shellopts/grammar.rb', line 57

def uid()
  @uid ||= command && [command.uid, ident].compact.join(".").sub(/!\./, ".")
end