settings

bemto.jade

//- bemto
//- Copyright(c) 2012 Roman Komarov <kizu@kizu.ru>
//- MIT Licensed

//- Settings
- var bemto_settings_prefix = ''
- var bemto_settings_element = '__'
- var bemto_settings_modifier = '--'
- var bemto_settings_default_tag = 'div'

//- Tag mixin, used for tweaking what tag we are throwing and do we need to wrap anything here
mixin bemto_tag(tag)
  //- rewriting tag name on different contexts
  - var newTag = tag || bemto_settings_default_tag;
  - var contextIndex = bemto_chain_contexts.length;

  //- Checks for contexts if no tag given
  if !tag
    if bemto_chain_contexts[contextIndex-1] === 'inline'
      - newTag = 'span';
    else if bemto_chain_contexts[contextIndex-1] === 'list'
      - newTag = 'li';
    else if bemto_chain_contexts[contextIndex-1] === 'optionlist'
      - newTag = 'option';

  //- Attributes context checks
  if attributes.href
    - newTag = 'a';
  if attributes.for
    - newTag = 'label';
  if attributes.type
    - newTag = 'input';
  else if attributes.src
    - newTag = 'img';

  //- Contextual wrappers
  if bemto_chain_contexts[contextIndex-1] === 'list' && newTag !== 'li'
    | <li>
  else if bemto_chain_contexts[contextIndex-1] !== 'list' && bemto_chain_contexts[contextIndex-1] !== 'pseudo-list' && newTag === 'li'
    | <ul>
    - bemto_chain_contexts[bemto_chain_contexts.length] = 'pseudo-list';
  else if bemto_chain_contexts[contextIndex-1] === 'pseudo-list' && newTag !== 'li'
    | </ul>
    - bemto_chain_contexts = bemto_chain_contexts.splice(0,bemto_chain_contexts.length-1);

  //- Setting context
  if ['a','abbr','acronym','b','br','code','em','font','i','img','ins','kbd','map','samp','small','span','strong','sub','sup','label','p','h1','h2','h3','h4','h5','h6','time'].indexOf(newTag) !== -1
    - bemto_chain_contexts[bemto_chain_contexts.length] = 'inline';
  else if ['ul','ol'].indexOf(newTag) !== -1
    - bemto_chain_contexts[bemto_chain_contexts.length] = 'list';
  else if ['select','datalist'].indexOf(newTag) !== -1
    - bemto_chain_contexts[bemto_chain_contexts.length] = 'optionlist';
  else
    - bemto_chain_contexts[bemto_chain_contexts.length] = 'block';

  //- Not using interpolation because of Jade wontfixed bugs
  case newTag
    when 'a': a&attributes(attributes): block
    when 'abbr': abbr&attributes(attributes): block
    when 'address': address&attributes(attributes): block
    when 'article': article&attributes(attributes): block
    when 'aside': aside&attributes(attributes): block
    when 'b': b&attributes(attributes): block
    when 'blockquote': blockquote&attributes(attributes): block
    when 'body': body&attributes(attributes): block
    when 'button': button&attributes(attributes): block
    when 'caption': caption&attributes(attributes): block
    when 'cite': cite&attributes(attributes): block
    when 'code': code&attributes(attributes): block
    when 'dd': dd&attributes(attributes): block
    when 'datalist': datalist&attributes(attributes): block
    when 'del': del&attributes(attributes): block
    when 'dfn': dfn&attributes(attributes): block
    when 'dl': dl&attributes(attributes): block
    when 'dt': dt&attributes(attributes): block
    when 'em': em&attributes(attributes): block
    when 'fieldset': fieldset&attributes(attributes): block
    when 'figcaption': figcaption&attributes(attributes): block
    when 'figure': figure&attributes(attributes): block
    when 'footer': footer&attributes(attributes): block
    when 'form': form&attributes(attributes): block
    when 'h1': h1&attributes(attributes): block
    when 'h2': h2&attributes(attributes): block
    when 'h3': h3&attributes(attributes): block
    when 'h4': h4&attributes(attributes): block
    when 'h5': h5&attributes(attributes): block
    when 'h6': h6&attributes(attributes): block
    when 'header': header&attributes(attributes): block
    when 'i': i&attributes(attributes): block
    when 'ins': ins&attributes(attributes): block
    when 'kbd': kbd&attributes(attributes): block
    when 'label': label&attributes(attributes): block
    when 'legend': legend&attributes(attributes): block
    when 'li': li&attributes(attributes): block
    when 'main': main&attributes(attributes): block
    when 'mark': mark&attributes(attributes): block
    when 'nav': nav&attributes(attributes): block
    when 'ol': ol&attributes(attributes): block
    when 'option': option&attributes(attributes): block
    when 'p': p&attributes(attributes): block
    when 'picture': picture&attributes(attributes): block
    when 'pre': pre&attributes(attributes): block
    when 'q': q&attributes(attributes): block
    when 's': s&attributes(attributes): block
    when 'samp': samp&attributes(attributes): block
    when 'section': section&attributes(attributes): block
    when 'select': select&attributes(attributes): block
    when 'small': small&attributes(attributes): block
    when 'span': span&attributes(attributes): block
    when 'strong': strong&attributes(attributes): block
    when 'sub': sub&attributes(attributes): block
    when 'sup': sup&attributes(attributes): block
    when 'svg': svg&attributes(attributes): block
    when 'table': table&attributes(attributes): block
    when 'tbody': tbody&attributes(attributes): block
    when 'td': td&attributes(attributes): block
    when 'textarea': textarea&attributes(attributes): block
    when 'tfoot': tfoot&attributes(attributes): block
    when 'th': th&attributes(attributes): block
    when 'thead': thead&attributes(attributes): block
    when 'time': time&attributes(attributes): block
    when 'tr': tr&attributes(attributes): block
    when 'u ': u&attributes(attributes): block
    when 'ul': ul&attributes(attributes): block
    when 'var': var&attributes(attributes): block
    when 'hr': hr&attributes(attributes)
    when 'br': br&attributes(attributes)
    when 'wbr': br&attributes(attributes)
    when 'source': source&attributes(attributes)
    when 'img'
      //- If there is no title we don't need it to show even if there is some alt
      if attributes.alt && !attributes.title
        - attributes.title = ''
      //- If we have title, we must have it in alt if it's not set
      if attributes.title && !attributes.alt
        - attributes.alt = attributes.title
      if !attributes.alt
        - attributes.alt = ''
      img&attributes(attributes)
    when 'input'
      if !attributes.type
        - attributes.type = "text"
      input&attributes(attributes)
    when 'html'
      doctype html
      html&attributes(attributes): block
    default: div&attributes(attributes): block
  //- Use interpolation here for non-tweaked tags when #659 and #660 are fixed
  //-default: #{newTag}&attributes(attributes): block

  //- Closing all the wrapper tails
  if bemto_chain_contexts[contextIndex-1] === 'list' && newTag != 'li'
    | </li>

//- Some global variables
- var bemto_chain = [];
- var bemto_chain_contexts = ['block'];
//- Block
mixin b(tag, isElement)
  //- Rewriting the class for elements and modifiers
  if attributes.class
    - var bemto_classes = attributes.class;
    if bemto_classes instanceof Array
      - bemto_classes = bemto_classes.join(' ');
    - bemto_classes = bemto_classes.split(' ');
    - var bemto_block = bemto_classes[0].match(new RegExp('^(((?!' + bemto_settings_element + '|' + bemto_settings_modifier +').)+)'))[1]

    if !isElement
      - bemto_chain[bemto_chain.length] = bemto_block
      - bemto_classes[0] = bemto_classes[0]
    else
      - bemto_classes[0] = bemto_chain[bemto_chain.length-1] + bemto_settings_element + bemto_classes[0]

    - var current_block = (isElement ? bemto_chain[bemto_chain.length-1] + bemto_settings_element : '') + bemto_block

    //- Adding the block if there is only modifier
    - var has_modifier = false
    each klass in bemto_classes
      if klass.match(new RegExp('^' + current_block + '(?!' + bemto_settings_element + '[A-Za-z]' + ')' + bemto_settings_modifier + '[A-Za-z]'))
        - has_modifier = true
    if bemto_classes.indexOf(current_block) === -1 && has_modifier
      - bemto_classes[bemto_classes.length] = current_block

    each klass, i in bemto_classes
      if klass.match(new RegExp('^(?!' + bemto_settings_element + ')' + bemto_settings_modifier))
        //- Expanding the modifiers
        - bemto_classes[i] = current_block + klass
      else if klass.match(new RegExp('^' + bemto_settings_element))
        //- Expanding the mixed in elements
        if bemto_chain[bemto_chain.length-2]
          - bemto_classes[i] = bemto_chain[bemto_chain.length-2] + klass
        else
          - bemto_classes[i] = bemto_chain[bemto_chain.length-1] + klass

      //- Adding prefixes
      if bemto_classes[i].match(new RegExp('^' + current_block + '($|(?=' + bemto_settings_element + '|' + bemto_settings_modifier + '))'))
        - bemto_classes[i] = bemto_settings_prefix + bemto_classes[i]

    //- Write modified classes to attributes in the correct order
    - attributes.class = bemto_classes.sort().join(' ')

  +bemto_tag(tag)&attributes(attributes)
    block

  //- Closing actions (remove the current block from the chain)
  if !isElement
    - bemto_chain = bemto_chain.splice(0,bemto_chain.length-1);
  - bemto_chain_contexts = bemto_chain_contexts.splice(0,bemto_chain_contexts.length-1);

//- Element
mixin e(tag)
  +b(tag, true)&attributes(attributes): block