markdown-it/lib/rules_inline/state_inline.js

// Inline parser state

'use strict';


function StateInline(src, parser, options, env) {
  this.src = src;
  this.env = env;
  this.options = options;
  this.parser = parser;
  this.tokens = [];
  this.pos = 0;
  this.posMax = this.src.length;
  this.level = 0;
  this.pending = '';
  this.pendingLevel = 0;

  this.cache = {};        // Stores { start: end } pairs. Useful for backtrack
                          // optimization of pairs parse (emphasis, strikes).

  // Link parser state vars

  this.isInLabel = false; // Set true when seek link label - we should disable
                          // "paired" rules (emphasis, strikes) to not skip
                          // tailing `]`

  this.linkLevel = 0;     // Increment for each nesting link. Used to prevent
                          // nesting in definitions

  this.linkContent = '';  // Temporary storage for link url

  this.labelUnmatchedScopes = 0; // Track unpaired `[` for link labels
                                 // (backtrack optimization)
}


StateInline.prototype.pushPending = function () {
  this.tokens.push({
    type: 'text',
    content: this.pending,
    level: this.pendingLevel
  });
  this.pending = '';
};

StateInline.prototype.push = function (token) {
  if (this.pending) {
    this.pushPending();
  }

  this.tokens.push(token);
  this.pendingLevel = this.level;
};


module.exports = StateInline;