fix: posMax could be empty when push pending string (#8)

Author: galaxian85

lib/rules_inline/state_inline.js

@@ -21,7 +21,16 @@ function StateInline(src, md, env, outTokens) {
   this.pos = 0;
   this.posMax = this.src.length;
   this.level = 0;
-  this.pending = '';
+  this._pending = '';
+  Object.defineProperty(this, 'pending', {
+    get: function () { return this._pending; },
+    set: function (val) {
+      if (this._pending.length === 0) {
+        this.posStart.push(this.pos);
+      }
+      this._pending = val;
+    }
+  });
   this.pendingLevel = 0;
 
   // Stores { start: end } pairs. Useful for backtrack

lib/rules_inline/text.js

@@ -52,10 +52,7 @@ module.exports = function text(state, silent) {
 
   if (pos === state.pos) { return false; }
 
-  if (!silent) {
-    state.pending += state.src.slice(state.pos, pos);
-    state.posStart.push(state.pos);
-  }
+  if (!silent) { state.pending += state.src.slice(state.pos, pos); }
 
   state.pos = pos;