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node_modules/markdown-it/lib/rules_inline/newline.js 1.06 KB
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  // Proceess '\n'
  
  'use strict';
  
  var isSpace = require('../common/utils').isSpace;
  
  
  module.exports = function newline(state, silent) {
    var pmax, max, pos = state.pos;
  
    if (state.src.charCodeAt(pos) !== 0x0A/* \n */) { return false; }
  
    pmax = state.pending.length - 1;
    max = state.posMax;
  
    // '  \n' -> hardbreak
    // Lookup in pending chars is bad practice! Don't copy to other rules!
    // Pending string is stored in concat mode, indexed lookups will cause
    // convertion to flat mode.
    if (!silent) {
      if (pmax >= 0 && state.pending.charCodeAt(pmax) === 0x20) {
        if (pmax >= 1 && state.pending.charCodeAt(pmax - 1) === 0x20) {
          state.pending = state.pending.replace(/ +$/, '');
          state.push('hardbreak', 'br', 0);
        } else {
          state.pending = state.pending.slice(0, -1);
          state.push('softbreak', 'br', 0);
        }
  
      } else {
        state.push('softbreak', 'br', 0);
      }
    }
  
    pos++;
  
    // skip heading spaces for next line
    while (pos < max && isSpace(state.src.charCodeAt(pos))) { pos++; }
  
    state.pos = pos;
    return true;
  };