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import sublime import sublime_plugin

class select_css_rule_set(sublime_plugin.TextCommand): try: def run(self, edit): view = self.view

  # CSS/SCSSのコメント内を除外して検索
  def findStr(key, start = view.sel()[0].begin(), dir = "f"):

    ## 現在位置がコメント内かどうかと、現在行までの情報を取得
    def checkCurtLine():
      _bfLines = view.split_by_newlines(sublime.Region(0, start + 1))
      _curtLineNum = len(_bfLines) - 1
      def _scss():
        return view.substr(_bfLines[_curtLineNum]).find("//")

      def _css():
        i = _curtLineNum
        _posS = _posE = -1;
        while i >= 0:
          _v = view.substr(_bfLines[i])
          _cmtS = _v.rfind("/*")
          _cmtE = _v.rfind("*/")
          if _posS == -1 and _cmtS != -1:
            _posS = _bfLines[i].begin() + _cmtS

          if _posE == -1 and _cmtE != -1:
            _posE = _bfLines[i].begin() + _cmtE + 1

          if _posS != -1 and _posE != -1:
            break
          i -= 1
        return _posS,_posE

      class _res(object):
        beforeTextRegions = _bfLines
        lineNum = _curtLineNum
        class scss():
          cmtStartPos = _scss()
          cmtEndPos = _bfLines[_curtLineNum].end if cmtStartPos != -1 else -1
          isCmt = True if cmtStartPos != -1 else False
        class css():
          cmtStartPos = _css()[0]
          cmtEndPos = _css()[1]
          isCmt = True if cmtStartPos > cmtEndPos else False
      return _res

    def findForward(curt):
      i = 0
      _res = ""
      _css = curt.css.isCmt
      _scss = curt.scss.isCmt
      while view.size() - (start + i) != 0:
        _p = start + i
        _target = view.substr(_p)

        if _target == "/":
          _css = True if view.substr(_p + 1) == "*" else _css
          _css = False if view.substr(_p - 1) == "*" else _css
          _scss = True if view.substr(_p + 1) == "/" else _scss
        elif _target == "\n":
          _scss = False if _scss == True else False

        if _css == False and _scss == False and _target == key:
          _res = sublime.Region(_p, _p + 1)
          break
        i += 1
      else:
        _res = sublime.Region(-1, -1)
      return _res

    def findReverse(curt):
      _bf = curt.beforeTextRegions
      _n = curt.lineNum
      _css = curt.css.isCmt
      _scss = curt.scss.isCmt
      _scssP = curt.scss.cmtStartPos
      i = _n
      _res = ""
      while i >= 0:
        _linePosS = _bf[i].begin()
        _lineStr = view.substr(_bf[i])

        if i == _n:
          if _scss == False:
            _lineStr = view.substr(sublime.Region(_linePosS, start))
          else:
            _lineStr = view.substr(sublime.Region(_linePosS, _linePosS + _scssP))
        else:
          _scssP = _lineStr.find("//")
          if _scssP != -1:
            _lineStr = view.substr(sublime.Region(_linePosS, _linePosS + _scssP))

        j = 1
        while len(_lineStr) >= j:
          _target = _lineStr[-j]
          _p = _linePosS + len(_lineStr) - j

          if _target == "/":
            _css = True if view.substr(_p - 1) == "*" else _css
            _css = False if view.substr(_p + 1) == "*" else _css

          if _css == False and _target == key:
            _res = sublime.Region(_p, _p + 1)
            break
          j += 1

        if _res != "":
          break

        _scss = False
        i -= 1

      else:
        _res = sublime.Region(-1, -1)
      return _res

    _curt = checkCurtLine()
    _res = findReverse(_curt) if dir == "r" else findForward(_curt)

    return _res


  # 選択範囲再設定
  def resetSelection(target):
    view.sel().clear()
    view.sel().add(target)
    return view.sel()[0]

  # インターポレーション内にカーソルがある場合、外側に移動
  def moveOutFromIntrpl(point):
    _s = findStr('{', start = point, dir = "r").begin()
    _e = findStr('}', start = point, dir = "r").begin()
    if view.substr(_s - 1) == "#" and _s > _e:
      _res = resetSelection(_s - 1).begin()
    else:
      _res = view.sel()[0].begin()
    return _res

  # セレクタ位置にある場合は{}の内側に、それ以外は;または}に移動
  def moveIntoDcBlock(point):
    if view.substr(point - 1) == "}" or view.substr(point - 1) == ";":
      resetSelection(point - 1).begin()
    _p = moveOutFromIntrpl(point)

    _c = findStr(';', start = _p).begin()
    _s = findStr('{', start = _p).begin()
    _e = findStr('}', start = _p).begin()
    
    if _s < _e:
      while view.substr(_s - 1) == "#":
        _s = findStr('{', start = _e + 1 ).begin()
        _e = findStr('}', start = _e + 1 ).begin()
        if _s > _e:
          break

    _lst = [_c,_s,_e]
    def _f(x): return x > -1
    _lst = list(filter(_f, _lst))
    _pos = min(_lst) if _lst != [] else False
    _res = resetSelection(_pos).begin() if _pos else False
    return _res


  # 宣言ブロック選択
  def selectDeclarationBlock(point):

    ## カーソルが（）や[]の直後にある場合、
    ## 宣言ブロックが選択されず、直前の括弧が選択されてしまうので調整する
    def adjustSelection(region):
      _p = region.begin()

      ### 選択範囲の宣言ブロックではない場合 expand_selectionを再実行
      ### （始点が"("、"["の場合か、"#{"の場合）
      if view.substr(_p) != "{" or (view.substr(_p) == "{" and view.substr(_p - 1) == "#"):
        view.run_command('expand_selection', {'to': 'brackets'})
        #### 再実行しても選択範囲が変わらない場合
        #### 直上に{}が存在しない = グローバルの変数宣言のため選択範囲を解除
        if _p == view.sel()[0].begin():
          resetSelection(view.sel()[0].end())

      return view.sel()[0]

    _mv = moveIntoDcBlock(point)
    if _mv:
      view.run_command('expand_selection', {'to': 'brackets'})
      view.run_command('expand_selection', {'to': 'brackets'})
      adjustSelection(view.sel()[0])
    return view.sel()[0]



  # 選択範囲の始点を宣言ブロックからルールセットに拡張
  def expandRulesetStartPositon(region):
    _declaration = region
    _posE = _declaration.end()

    ## グローバルの変数宣言では、;も選択範囲に含める
    _posE += 1 if view.substr(_posE) == ";" else 0

    _c = findStr(';', start = _declaration.begin() , dir = "r").end()
    _s = findStr('{', start = _declaration.begin() , dir = "r").end()
    _e = findStr('}', start = _declaration.begin() , dir = "r").end()

    ## 前方にインターポレーションがある場合、それ無視してその前の{}を探す
    while view.substr(_s - 2) == "#":
      if findStr('}', start = _s - 2,).end() >= _e:
        _e = findStr('}', start = _s - 1, dir = "r").end()
        _s = findStr('{', start = _s - 1, dir = "r").end()
      else:
        break

    _posS = max(_s, _e, _c)

    ## 拡張した選択範囲のうち、コメントと行頭改行分をもどす
    i = _posS
    _cssCmt = _scssCmt = False
    while i < _declaration.begin():
      if view.substr(i) == "/":
        _cssCmt = True if view.substr(i + 1) == "*" else _cssCmt
        _scssCmt = True if view.substr(i + 1) == "/" else _scssCmt
      elif view.substr(i) == "*":
        if view.substr(i + 1) == "/":
          _cssCmt = False
          i += 2
      elif view.substr(i) == "\n":
        _scssCmt = False

      if _cssCmt == False and _scssCmt == False:
        if view.substr(i) == "\x00" or view.substr(i) == "\n" or view.substr(i) == "\t" or view.substr(i) == " ":
          pass
        else:
          break
      i += 1

    _posS = i if i != -1 else 0

    if _posE > 0:
      resetSelection(sublime.Region(_posS, _posE))

  sel = selectDeclarationBlock( view.sel()[0].begin() )
  expandRulesetStartPositon(sel)

except: pass