Class: MarkdownIt::RulesInline::StateInline

Inherits:
Object
  • Object
show all
Includes:
Common::Utils
Defined in:
lib/motion-markdown-it/rules_inline/state_inline.rb

Constant Summary

Constants included from Common::Utils

Common::Utils::DIGITAL_ENTITY_TEST_RE, Common::Utils::ENTITY_RE, Common::Utils::HTML_ESCAPE_REPLACE_RE, Common::Utils::HTML_ESCAPE_TEST_RE, Common::Utils::HTML_REPLACEMENTS, Common::Utils::REGEXP_ESCAPE_RE, Common::Utils::UNESCAPE_ALL_RE, Common::Utils::UNESCAPE_MD_RE, Common::Utils::UNICODE_PUNCT_RE

Instance Attribute Summary collapse

Instance Method Summary collapse

Methods included from Common::Utils

#arrayReplaceAt, #assign, #charCodeAt, #escapeHtml, #escapeRE, #fromCharCode, #fromCodePoint, #isMdAsciiPunct, #isPunctChar, #isSpace, #isValidEntityCode, #isWhiteSpace, #normalizeReference, #replaceEntityPattern, #unescapeAll, #unescapeMd

Constructor Details

#initialize(src, md, env, outTokens) ⇒ StateInline 



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# File 'lib/motion-markdown-it/rules_inline/state_inline.rb', line 13

def initialize(src, md, env, outTokens)
  @src          = src
  @env          = env
  @md           = md
  @tokens       = outTokens
  @tokens_meta  = Array.new(outTokens.length)

  @pos          = 0
  @posMax       = @src.length
  @level        = 0
  @pending      = ''
  @pendingLevel = 0

  # Stores { start: end } pairs. Useful for backtrack
  # optimization of pairs parse (emphasis, strikes).
  @cache = {}
                    
  # List of emphasis-like delimiters for current tag
  @delimiters = []

  # Stack of delimiter lists for upper level tags
  @_prev_delimiters = [];

  # backtick length => last seen position
  @backticks = {}
  @backticksScanned = false
end

Instance Attribute Details

#backticks ⇒ Object

Returns the value of attribute backticks.



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# File 'lib/motion-markdown-it/rules_inline/state_inline.rb', line 10

def backticks
  @backticks
end

#backticksScanned ⇒ Object

Returns the value of attribute backticksScanned.



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# File 'lib/motion-markdown-it/rules_inline/state_inline.rb', line 10

def backticksScanned
  @backticksScanned
end

#cache ⇒ Object

Returns the value of attribute cache.



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# File 'lib/motion-markdown-it/rules_inline/state_inline.rb', line 9

def cache
  @cache
end

#delimiters ⇒ Object

Returns the value of attribute delimiters.



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# File 'lib/motion-markdown-it/rules_inline/state_inline.rb', line 9

def delimiters
  @delimiters
end

#env ⇒ Object

Returns the value of attribute env.



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# File 'lib/motion-markdown-it/rules_inline/state_inline.rb', line 8

def env
  @env
end

#level ⇒ Object

Returns the value of attribute level.



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# File 'lib/motion-markdown-it/rules_inline/state_inline.rb', line 8

def level
  @level
end

#md ⇒ Object

Returns the value of attribute md.



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# File 'lib/motion-markdown-it/rules_inline/state_inline.rb', line 8

def md
  @md
end

#pending ⇒ Object

Returns the value of attribute pending.



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# File 'lib/motion-markdown-it/rules_inline/state_inline.rb', line 9

def pending
  @pending
end

#pendingLevel ⇒ Object

Returns the value of attribute pendingLevel.



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# File 'lib/motion-markdown-it/rules_inline/state_inline.rb', line 9

def pendingLevel
  @pendingLevel
end

#pos ⇒ Object

Returns the value of attribute pos.



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# File 'lib/motion-markdown-it/rules_inline/state_inline.rb', line 8

def pos
  @pos
end

#posMax ⇒ Object

Returns the value of attribute posMax.



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# File 'lib/motion-markdown-it/rules_inline/state_inline.rb', line 8

def posMax
  @posMax
end

#src ⇒ Object

Returns the value of attribute src.



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# File 'lib/motion-markdown-it/rules_inline/state_inline.rb', line 8

def src
  @src
end

#tokens ⇒ Object

Returns the value of attribute tokens.



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# File 'lib/motion-markdown-it/rules_inline/state_inline.rb', line 8

def tokens
  @tokens
end

#tokens_meta ⇒ Object

Returns the value of attribute tokens_meta.



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# File 'lib/motion-markdown-it/rules_inline/state_inline.rb', line 8

def tokens_meta
  @tokens_meta
end

Instance Method Details

#push(type, tag, nesting) ⇒ Object

Push new token to “stream”. If pending text exists - flush it as text token



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# File 'lib/motion-markdown-it/rules_inline/state_inline.rb', line 56

def push(type, tag, nesting)
  pushPending unless @pending.empty?

  token      = Token.new(type, tag, nesting)
  token_meta = nil

  if nesting < 0
    # closing tag
    @level -= 1 
    @delimiters = @_prev_delimiters.pop
  end

  token.level = @level

  if nesting > 0
    # opening tag
    @level += 1
    @_prev_delimiters.push(@delimiters)
    @delimiters = []
    token_meta = { delimiters: @delimiters }
  end

  @pendingLevel = @level
  @tokens.push(token)
  @tokens_meta.push(token_meta)

  return token
end

#pushPending ⇒ Object

Flush pending text



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# File 'lib/motion-markdown-it/rules_inline/state_inline.rb', line 44

def pushPending
  token         = Token.new('text', '', 0)
  token.content = @pending
  token.level   = @pendingLevel
  @tokens.push(token)
  @pending      = ''
  return token
end

#scanDelims(start, canSplitWord) ⇒ Object

Scan a sequence of emphasis-like markers, and determine whether it can start an emphasis sequence or end an emphasis sequence.

- start - position to scan from (it should point at a valid marker);
- canSplitWord - determine if these markers can be found inside a word



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# File 'lib/motion-markdown-it/rules_inline/state_inline.rb', line 91

def scanDelims(start, canSplitWord)
  pos            = start
  left_flanking  = true
  right_flanking = true
  max            = @posMax
  marker         = charCodeAt(@src, start)

  # treat beginning of the line as a whitespace
  lastChar = start > 0 ? charCodeAt(@src, start - 1) : 0x20

  while (pos < max && charCodeAt(@src, pos) == marker)
    pos += 1
  end

  count = pos - start

  # treat end of the line as a whitespace
  nextChar = pos < max ? charCodeAt(@src, pos) : 0x20

  isLastPunctChar = isMdAsciiPunct(lastChar) || isPunctChar(fromCodePoint(lastChar))
  isNextPunctChar = isMdAsciiPunct(nextChar) || isPunctChar(fromCodePoint(nextChar))

  isLastWhiteSpace = isWhiteSpace(lastChar)
  isNextWhiteSpace = isWhiteSpace(nextChar)

  if (isNextWhiteSpace)
    left_flanking = false
  elsif (isNextPunctChar)
    if (!(isLastWhiteSpace || isLastPunctChar))
      left_flanking = false
    end
  end

  if isLastWhiteSpace
    right_flanking = false
  elsif isLastPunctChar
    if !(isNextWhiteSpace || isNextPunctChar)
      right_flanking = false
    end
  end

  if !canSplitWord
    can_open  = left_flanking  && (!right_flanking || isLastPunctChar)
    can_close = right_flanking && (!left_flanking  || isNextPunctChar)
  else
    can_open  = left_flanking
    can_close = right_flanking
  end

  return { can_open: can_open, can_close: can_close, length: count }
end