Class: Strling::Core::Flags

Inherits:
Object
  • Object
show all
Defined in:
lib/strling/core/nodes.rb

Overview

Container for regex flags/modifiers.

Flags control the behavior of pattern matching (case sensitivity, multiline mode, etc.). This class encapsulates all standard regex flags.

Instance Attribute Summary collapse

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(ignore_case: false, multiline: false, dot_all: false, unicode: false, extended: false) ⇒ Flags

Returns a new instance of Flags.



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# File 'lib/strling/core/nodes.rb', line 42

def initialize(ignore_case: false, multiline: false, dot_all: false, unicode: false, extended: false)
  @ignore_case = ignore_case
  @multiline = multiline
  @dot_all = dot_all
  @unicode = unicode
  @extended = extended
end

Instance Attribute Details

#dot_all ⇒ Boolean

Returns Dot matches all characters including newlines.

Returns:

  • (Boolean) —

    Dot matches all characters including newlines



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# File 'lib/strling/core/nodes.rb', line 34

def dot_all
  @dot_all
end

#extended ⇒ Boolean

Returns Extended/free-spacing mode (ignore whitespace).

Returns:

  • (Boolean) —

    Extended/free-spacing mode (ignore whitespace)



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# File 'lib/strling/core/nodes.rb', line 40

def extended
  @extended
end

#ignore_case ⇒ Boolean

Returns Case-insensitive matching.

Returns:

  • (Boolean) —

    Case-insensitive matching



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# File 'lib/strling/core/nodes.rb', line 28

def ignore_case
  @ignore_case
end

#multiline ⇒ Boolean

Returns Multiline mode (^ and $ match line boundaries).

Returns:

  • (Boolean) —

    Multiline mode (^ and $ match line boundaries)



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# File 'lib/strling/core/nodes.rb', line 31

def multiline
  @multiline
end

#unicode ⇒ Boolean

Returns Unicode mode.

Returns:

  • (Boolean) —

    Unicode mode



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# File 'lib/strling/core/nodes.rb', line 37

def unicode
  @unicode
end

Class Method Details

.from_letters(letters) ⇒ Flags

Create Flags from flag letters.

Parameters:

  • letters (String) —

    Flag letters (i, m, s, u, x)

Returns:

  • (Flags) —

    New Flags instance



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# File 'lib/strling/core/nodes.rb', line 67

def self.from_letters(letters)
  flags = new
  letters.gsub(/[,\s]/, '').each_char do |ch|
    case ch
    when 'i'
      flags.ignore_case = true
    when 'm'
      flags.multiline = true
    when 's'
      flags.dot_all = true
    when 'u'
      flags.unicode = true
    when 'x'
      flags.extended = true
    when ''
      # Empty character, skip
    else
      # Unknown flags are ignored at parser stage; may be warned later
    end
  end
  flags
end

Instance Method Details

#to_dict ⇒ Hash

Convert flags to hash representation.

Returns:

  • (Hash) —

    Hash representation of flags



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# File 'lib/strling/core/nodes.rb', line 53

def to_dict
  {
    'ignoreCase' => ignore_case,
    'multiline' => multiline,
    'dotAll' => dot_all,
    'unicode' => unicode,
    'extended' => extended
  }
end